To meet the challenge of mismatches between power supply and demand,modern buildings must schedule flexible energy loads in order to improve the efficiency of power grids.Furthermore,it is essential to understand the ...To meet the challenge of mismatches between power supply and demand,modern buildings must schedule flexible energy loads in order to improve the efficiency of power grids.Furthermore,it is essential to understand the effectiveness of flexibility management strategies under different climate conditions and extreme weather events.Using both typical and extreme weather data from cities in five major climate zones of China,this study investigates the energy flexibility potential of an office building under three short-term HVAC management strategies in the context of different climates.The results show that the peak load flexibility and overall energy performance of the three short-term strategies were affected by the surrounding climate conditions.The peak load reduction rate of the pre-cooling and zone temperature reset strategies declined linearly as outdoor temperature increased.Under extreme climate conditions,the daily peak-load time was found to be over two hours earlier than under typical conditions,and the intensive solar radiation found in the extreme conditions can weaken the correlation between peak load reduction and outdoor temperature,risking the ability of a building’s HVAC system to maintain a comfortable indoor environment.展开更多
Customer segmentation according to load-shape profiles using smart meter data is an increasingly important application to vital the planning and operation of energy systems and to enable citizens’participation in the...Customer segmentation according to load-shape profiles using smart meter data is an increasingly important application to vital the planning and operation of energy systems and to enable citizens’participation in the energy transition.This study proposes an innovative multi-step clustering procedure to segment customers based on load-shape patterns at the daily and intra-daily time horizons.Smart meter data is split between daily and hourly normalized time series to assess monthly,weekly,daily,and hourly seasonality patterns separately.The dimensionality reduction implicit in the splitting allows a direct approach to clustering raw daily energy time series data.The intraday clustering procedure sequentially identifies representative hourly day-unit profiles for each customer and the entire population.For the first time,a step function approach is applied to reduce time series dimensionality.Customer attributes embedded in surveys are employed to build external clustering validation metrics using Cramer’s V correlation factors and to identify statistically significant determinants of load-shape in energy usage.In addition,a time series features engineering approach is used to extract 16 relevant demand flexibility indicators that characterize customers and corresponding clusters along four different axes:available Energy(E),Temporal patterns(T),Consistency(C),and Variability(V).The methodology is implemented on a real-world electricity consumption dataset of 325 Small and Medium-sized Enterprise(SME)customers,identifying 4 daily and 6 hourly easy-to-interpret,well-defined clusters.The application of the methodology includes selecting key parameters via grid search and a thorough comparison of clustering distances and methods to ensure the robustness of the results.Further research can test the scalability of the methodology to larger datasets from various customer segments(households and large commercial)and locations with different weather and socioeconomic conditions.展开更多
Five cadmium naphthalene-diphosphonates,formulated as[Cd_(1.5)(1,4-ndpaH_(2))2(4,4'-bpyH)(4,4'-bpy)0.5(H_(2)O)_(2)]2(1),[Cd(1,4-ndpaH_(2))(1,4-bib)0.5(H_(2)O)](2),[Cd(1,4-ndpaH3)2(1,2-dpe)(H_(2)O)]·(1,2-d...Five cadmium naphthalene-diphosphonates,formulated as[Cd_(1.5)(1,4-ndpaH_(2))2(4,4'-bpyH)(4,4'-bpy)0.5(H_(2)O)_(2)]2(1),[Cd(1,4-ndpaH_(2))(1,4-bib)0.5(H_(2)O)](2),[Cd(1,4-ndpaH3)2(1,2-dpe)(H_(2)O)]·(1,2-dpe)·7H_(2)O(3),(1,2-bixH)[Cd3(1,4-ndpaH)(1,4-ndpaH_(2))2(H_(2)O)_(2)](4),and[Cd(1,4-ndpaH_(2))(H_(2)O)]·H_(2)O(5),have been synthesized from the selfassembly reactions of 1,4-naphthalenediphosphonic acid(1,4-ndpaH4)with Cd(NO3)2·4H_(2)O by introducing auxiliary ligands with variation of rigidity,such as 4,4'-bipyridine(4,4'-bpy),1,4-bis(1-imidazolyl)benzene(1,4-bib),1,2-di(4-pyridyl)ethylene(1,2-dpe),1,3-di(4-pyridyl)propane(1,3-dpp),and bis(imidazol-1-ylmethyl)benzene(1,2-bix),respectively.Structure resolution by single-crystal X-ray diffraction reveals that compound 1 possesses a layered framework,in which the{Cd3(PO2)2}trimers made up of corner-sharing two{CdO4N2}and one{CdO6}octahedra are connected by phosphonate groups,forming a ribbon,which are cross-linked by 4,4'-bipy ligands,forming a 2D layer.Compound 2 shows a 3D open-framework structure,where chains of corner-sharing{CdO4N}trigonal bipyramids and{PO3C}tetrahedra are cross-linked by 1,4-bib and/or phosphonate groups.A 1D ladder-like chain structure is found in compound 3,where the ladder-like chains made up of corner-sharing{CdO5N}octahedra and{PO3C}tetra hedra are connected by 1,4-ndpaH_(2)^(2-).Both compounds 4 and 5 obtained by the introduction of flexible ligands during the synthesis show a 2D layered structure,which is formed by ligand crosslinking double metal chains.Interestingly,In 4,flexible 1,2-bix was singly protonated,as vip molecules,filled between layer and layer,while flexible ligand 1,3-dpp is absent in 5.Photophysical measurements indicate that compounds 1-5 show ligand-centered emissions.展开更多
The advancement of planar micro-supercapacitors(PMSCs)for micro-electromechanical systems(MEMS)has been significantly hindered by the challenge of achieving high energy and power densities.This study addresses this is...The advancement of planar micro-supercapacitors(PMSCs)for micro-electromechanical systems(MEMS)has been significantly hindered by the challenge of achieving high energy and power densities.This study addresses this issue by leveraging screen-printing technology to fabricate high-performance PMSCs using innovative composite ink.The ink,a synergistic blend of few-layer graphene(Gt),carbon black(CB),and NiCo_(2)O_(4),was meticulously mixed to form a conductive and robust coating that enhanced the capacitive performance of the PMSCs.The optimized ink formulation and printing process result in a micro-supercapacitor with an exceptional areal capacitance of 18.95 mF/cm^(2)and an areal energy density of 2.63μW·h/cm^(2)at a current density of 0.05 mA/cm^(2),along with an areal power density of 0.025 mW/cm^(2).The devices demonstrated impressive durability with a capacitance retention rate of 94.7%after a stringent 20000-cycle test,demonstrating their potential for long-term applications.Moreover,the PMSCs displayed excellent mechanical flexibility,with a capacitance decrease of only 3.43%after 5000 bending cycles,highlighting their suitability for flexible electronic devices.The ease of integrating these PMSCs into series and parallel configurations for customized power further underscores their practicality for integrated power supply solutions in various technologies.展开更多
Intrinsic stretchability is a promising attribute of polymer organic solar cells(OSCs).However,rigid molecular blocks typically exhibit poor tensile properties,rendering polymers vulnerable to mechanical stress.In thi...Intrinsic stretchability is a promising attribute of polymer organic solar cells(OSCs).However,rigid molecular blocks typically exhibit poor tensile properties,rendering polymers vulnerable to mechanical stress.In this study,we introduce a different approach utilizing all-small-molecule donors and acceptors to fabricate stretchable OSCs.An elastomer,styrene-b-ethylene-butylene-styrene(SEBS),was embedded to modulate film crystallization and stretchability.SEBS effectively confines the growth process of donors and acceptors,leading to enhancement of the crystallization quality,thus contributing to enhanced device efficiencies.Meanwhile,SEBS can absorb and release mechanical stress during stretching,thereby preventing mechanical degradation of donors and acceptors.The mechanical properties of the OSCs were significantly improved by the incorporation of SEBS.Notably,the crack-onset strain increased from 1.03% to 5.99% with SEBS embedding.These findings present a straightforward strategy for achieving stretchable OSCs using all small molecules,offering a different perspective for realizing stretchable devices.展开更多
Piezocomposites with both flexibility and electromechanical conversion characteristics have been widely applied in various fields,including sensors,energy harvesting,catalysis,and biomedical treatment.In the compositi...Piezocomposites with both flexibility and electromechanical conversion characteristics have been widely applied in various fields,including sensors,energy harvesting,catalysis,and biomedical treatment.In the composition of piezocomposites or their preparation process,a category of materials is commonly employed that do not possess piezoelectric properties themselves but play a crucial role in performance enhancement.In this review,the concept of auxiliary phase is first proposed to define these materials,aiming to provide a new perspective for designing high-performance piezocomposites.Three different categories of modulation forms of auxiliary phase in piezocomposites are systematically summarized,including the modification of piezo-matrix,the modification of piezo-fillers,and the construction of special structures.Each category emphasizes the role of the auxiliary phase and systematically discusses the latest advancements and the physical mechanisms of the auxiliary phase enhanced flexible piezocomposites.Finally,a summary and future outlook of piezocomposites based on the auxiliary phase are provided.展开更多
Executive functions emerge throughout childhood and shape multiple cognitive and behavioral outcomes across the lifespan.Given the importance of these functions,there is considerable interest in understanding the role...Executive functions emerge throughout childhood and shape multiple cognitive and behavioral outcomes across the lifespan.Given the importance of these functions,there is considerable interest in understanding the role of environmental enrichment to support their development.The past 20 years have seen the emergence of a body of evidence around the beneficial effects of engaging in physical activity for executive functioning in children.Despite this,there are still unanswered questions,particularly about the confounding effects of the timing and dose of exercise-based interventions.During development,sensitive periods with heightened neural plasticity and sensitivity to environmental influences can offer an optimal time to introduce enrichment interventions.As such,sensitive periods for executive function could indicate an ideal time to introduce physical activity or be a potential confounder to study results if not considered.This narrative review discusses the potential presence of sensitive periods in preadolescent development where physical activity has greater benefits for executive function.Initially,we briefly review the largely parallel fields investigating the presence of sensitive periods for executive function and the effects of physical activity on executive function outcomes.We then bring together these 2 concepts to discuss the theoretical basis for developmentally sensitive periods during which children may be particularly amenable to physical activity-based interventions and offer potential ways forward to investigate this phenomenon.We hope this review will attract researchers to collaborate in the area and extend our current understanding of the development of executive functions as well as interventions like physical activity.展开更多
1 People often think of musical memories as fixed images of the past,but a recent study suggests music may do more than just activate memories-it might even change how you remember them.2 The hypothesis(假说)was roote...1 People often think of musical memories as fixed images of the past,but a recent study suggests music may do more than just activate memories-it might even change how you remember them.2 The hypothesis(假说)was rooted in the idea that when you recall a memory,it becomes temporarily flexible,allowing new information to be integrated.To prove it,the researchers developed a three⁃day experiment to test whether music played during recall might introduce new emotional elements into the original memory.展开更多
The penetration rate of new wind and photovoltaic energy in the power system has increased significantly,and the dramatic fluctuation of the net load of the grid has led to a severe lack of flexibility in the regional...The penetration rate of new wind and photovoltaic energy in the power system has increased significantly,and the dramatic fluctuation of the net load of the grid has led to a severe lack of flexibility in the regional grid.This paper proposes a hierarchical optimal dispatch strategy for a high proportion of new energy power systems that considers the balanced response of grid flexibility.Firstly,various flexibility resource regulation capabilities on the source-load side are analyzed,and then flexibility demand and flexibility response are matched,and flexibility demand response assessment is proposed;then,a hierarchical optimal dispatch model of the grid taking flexibility adjustment capability into account is established,and the upper model optimizes the net load curve with the objectives of minimizing the fluctuation of the net load,maximizing the benefits of energy storage and controllable loads,and optimizing the flexibility adjustment capability.The upper layer model optimizes the net load curve by minimizing net load fluctuation,maximizing energy storage and controllable load revenue,and optimizing flexibility adjustment capability.In contrast,the lower layer model optimizes the power allocation of thermal power units and regulates the lost load of wind and solar power generation by minimizing the total system operating cost.The results show that the proposed strategy improves the flexibility of the grid by 15.2%,gives full play to the regulation capability of each flexibility resource,and reduces the fluctuation of the net load by 15.6%to achieve optimal coordination between different types of flexibility resources.展开更多
Fluvoxamine(FXM)is a well-known selective serotonin reuptake inhibitor(SSRI)for treating depression and has recently been repurposed for efficacious treatment of coronavirus disease 2019.Although cyclodextrin(CD)encap...Fluvoxamine(FXM)is a well-known selective serotonin reuptake inhibitor(SSRI)for treating depression and has recently been repurposed for efficacious treatment of coronavirus disease 2019.Although cyclodextrin(CD)encapsulation effectively improves the physicochemical properties of structurally diverse SSRIs,the molecular understanding of their associations is deficient.This comprehensive study used single-crystal X-ray diffraction integrated with density functional theory(DFT)calculation to provide deep insights into the conformationally flexible FXM and its inclusion complexation withβ-CD.Xray analysis revealed the first crystallographic evidence of the uncomplexed 3FXM-H^(+)·3maleate-(1).Three FXM-H^(+)ions are counter-balanced by three planar maleate-ions to form a thin layer stabilized by infinite fused H-bond rings R_(4)^(4)(12)and R_(6)^(4)(16)and the interplay ofπ…π,CF…πand F…F interactions.For 2β-CD·2FXM-H^(+)·maleate^(2-)·23·2H_(2)O(2),the tail-to-tailβ-CD dimer encapsulates two FXM-H^(+)4-(trifluoromethyl)phenyl moieties,which are charge-balanced by the rare non-planar maleate2and stabilized by N…OH…O H-bonds and F…F interactions.This is a hostevip recognition pattern uniquely observed for allβ-CD complexes with halogen(X)-bearing SSRIs,indicating the essence of X…X interactions and the shielding of X-containing moieties in the wall of theβ-CD dimer.DFT calculations unveiled that the monomeric and dimericβ-CD-FXM complexes and FXM isomers are energetically stable,which alleviates the numbness and bitterness of the orally administered drug as previously patented.Additionally,an insightful conformational analysis of FXM emphasizes the importance of drug structural adaptation in pharmacological functions.展开更多
Objectives:This study aimed to assess the reliability and validity of the abbreviated Committed Action Questionnaire(CAQ-8)in a cohort of 1635 Chinese university students.Methods:Participants completed the Chinese ver...Objectives:This study aimed to assess the reliability and validity of the abbreviated Committed Action Questionnaire(CAQ-8)in a cohort of 1635 Chinese university students.Methods:Participants completed the Chinese version of the CAQ-8 along with other standardized measures,including the Acceptance and Action Questionnaire-II(AAQ-II),the Valuing Questionnaire(VQ),the Satisfaction with Life Scale(SWLS),the Depression Anxiety Stress Scales(DASS-21),and the World Health Organization Fiveitem Well-Being Index(WHO-5).A retest was conducted one month later with 300 valid responses.Results:Exploratory factor analysis(n=818)identified a 2-factor structure,confirmed through validated factor analysis(n=817),showing good fit indices(CFI=0.990,RMSEA=0.040).Measurement equivalence across genders was established.The CAQ-8 showed significant positive correlations with life satisfaction,mental health,and values,and negative correlations with depression,anxiety,stress,and experiential avoidance.The scale demonstrated good internal consistency(Cronbach’sα=0.76)and retest reliability(ICC=0.70).Network analysis confirmed the robustness of the 2-factor model,with item 4 in CAQ-8 identified as a core item.Conclusion:The CAQ-8 is a reliable and valid tool for measuring committed action within the psychological flexibility model in Chinese populations.展开更多
Background:With the proliferation of smartphones,adolescent mobile phone dependency has intensified,potentially precipitating academic burnout and other adverse outcomes among students.Contemporary study mostly examin...Background:With the proliferation of smartphones,adolescent mobile phone dependency has intensified,potentially precipitating academic burnout and other adverse outcomes among students.Contemporary study mostly examines college populations,resulting in a lack of exploration on the internal mechanisms connecting mobile phone dependency to academic burnout.In addition to analysing the chain-mediated effects of sleep quality and cognitive flexibility,this study sought to provide theoretical insights for prevention by applying the Conservation of Resources theory to examine the relationship between academic burnout and mobile phone dependency among middle and high school students.Methods:A cluster convenience sampling approach was adopted.Data were collected from 811 middle and high school students in Tianjin,China,using a paper-based questionnaire battery comprising the Mobile Phone Addiction Index,the Pittsburgh Sleep Quality Index,the Cognitive Flexibility Scale,and the Adolescent Academic Burnout Scale.Descriptive statistics and correlation analyses were conducted using SPSS 25.0.Chain mediation effects were examined via the PROCESS macro,with significance assessed using bias-corrected bootstrap 95%confidence intervals.Results:A statistically significant positive link exists between mobile phone dependency and academic burnout among middle and high school students(r=0.575,p<0.001).Dependence on mobile phones had a substantial direct impact on academic burnout(β=0.303,p<0.001).Chain mediation analysis revealed that mobile phone dependency had a substantial direct impact on academic burnout(β=0.303,p<0.001).Sleep quality and cognitive flexibility mediated the link between mobile phone dependency and academic burnout.These indirect pathways represent 44.18%of the total effect.Conclusions:Mobile phone dependency contributes to academic burnout amongmiddle and high school students,mediated sequentially by sleep quality and cognitive flexibility.These findings suggest a potential intervention strategy to mitigate academic burnout by targeting excessive mobile phone use,enhancing sleep hygiene,and implementing cognitive flexibility training.展开更多
Objective:To analyze the mediating effect of psychological flexibility between death anxiety and quality of life in cancer patients.Methods:A convenience sampling method was used to select cancer patients who received...Objective:To analyze the mediating effect of psychological flexibility between death anxiety and quality of life in cancer patients.Methods:A convenience sampling method was used to select cancer patients who received treatment at our hospital from January 2022 to January 2024,by the inclusion and exclusion criteria.General information,psychological flexibility,death anxiety,and quality of life scores were collected for analysis.Result:The psychological flexibility and quality of life scores of cancer patients with an annual family income≤100,000 RMB were significantly lower than those of cancer patients with an annual family income>100,000 RMB(P<0.05),while the death anxiety scores were significantly lower for the former group as well(P<0.05).Cancer patients staged as Ⅰ-Ⅱ had significantly higher psychological flexibility and quality of life scores than those staged as Ⅲ-Ⅳ(P<0.05),while their death anxiety scores were significantly lower(P<0.05).Psychological flexibility in cancer patients was negatively correlated with death anxiety(r=-0.614,P<0.05)and positively correlated with quality of life(r=0.628,P<0.05),while death anxiety was negatively correlated with quality of life(r=-0.112,P<0.05).The direct effect of death anxiety on quality of life was-0.232,accounting for 58.32%of the total effect.The mediating effect of psychological flexibility between death anxiety and quality of life was-0.218,accounting for 41.83%of the total effect.Conclusion:Death anxiety can directly affect the quality of life of cancer patients,and it can also indirectly affect the quality of life through psychological flexibility.Clinicians should promptly address patients’death anxiety and provide interventions to enhance psychological flexibility,thereby improving the quality of life.展开更多
The flexible satellite batch production line is a complex discrete production system with multiple cross-disciplinary fields and mixed serial parallel tasks.As the source of the satellite batch production line process...The flexible satellite batch production line is a complex discrete production system with multiple cross-disciplinary fields and mixed serial parallel tasks.As the source of the satellite batch production line process,the warehousing system has urgent needs such as uncertain production scale and rapid iteration and optimization of business processes.Therefore,the requirements and architecture of complex discrete warehousing systems such as flexible satellite batch production lines are studied.The physical system of intelligent equipment is abstracted as a digital model to form the underlying module,and a digital fusion framework of“business domain+middleware platform+intelligent equipment information model”is constructed.The granularity of microservice splitting is calculated based on the dynamic correlation relationship between user access instances and database table structures.The general warehousing functions of the platform are divided to achieve module customization,addition,and configuration.An open discrete warehousing system based on microservices is designed.Software architecture and design develop complex discrete warehousing systems based on the SpringCloud framework.This architecture achieves the decoupling of business logic and physical hardware,enhances the maintainability and scalability of the system,and greatly improves the system’s adaptability to different complex discrete warehousing business scenarios.展开更多
Flexible phase change materials(PCMs)have become increasingly critical to address the demand for thermal management in electronic technologies and energy conversion.However,their application remains challenging becaus...Flexible phase change materials(PCMs)have become increasingly critical to address the demand for thermal management in electronic technologies and energy conversion.However,their application remains challenging because of their rigidity,liquid leakage,and insufficient thermal conductivity.Herein,flexible glutamic acid@natural rubber/paraffin wax(PW)/carbon nanotubes-graphene nanoplatelets(GNR/PW/CGNP)phase change composites with high thermal conductivity,excellent shape stability,and recyclability were reported.Zn^(2+)-based dynamic crosslinking was constructed through the reaction of zinc acetate and carboxyl groups on glutamic acid@natural rubber(GNR),which was used as a flexible matrix to physically blend with paraffin wax/carbon nanotubes/graphene nanoplatelets(PW/CGNP)to achieve uniform dispersion of PW/CGNP,continuous thermal conductivity networks,and good encapsulation of PW.The GNR/PW/CGNP composites showed excellent mechanical strength,flexibility,and recycling ability,and effective encapsulation prevented the outflow of melted PW during the phase transition.Also,the phase change enthalpy could attain 111.1 J/g with a higher thermal conductivity of 1.055 W/m K,428%higher than that of pure PW owing to the formation of efficient thermal conductive pathways,which exhibited outstanding thermal management performance and superior temperature control behavior in electronic devices.The developed flexible composite PCMs may open new possibilities for next-generation flexible thermal management electronics.展开更多
Past investigations of the hydrodynamic forces on vertical columns have generally been based on rigid structure assumptions.The effects of structural flexibility and geometry characteristics on the hydrodynamic force ...Past investigations of the hydrodynamic forces on vertical columns have generally been based on rigid structure assumptions.The effects of structural flexibility and geometry characteristics on the hydrodynamic force distribution are not well understood.In this study,fluid-structure interaction models are developed for numerical analyses.This modeling technique is verified with an experimental test in the literature using both circular and rectangular cross-sections.A series of material elasticities that present structural properties ranging from rigid to flexible is then used to conduct analyses.This finding indicates that an increase in structural flexibility can decrease the impact force to some extent,but this effect is limited.A concrete bridge pier with fluid flow impact can be considered rigid when it is fixed at the bottom.After that,the effects of the initial downstream water height and the width of water tank on the hydrodynamic force are thoroughly investigated.The results demonstrate that the increase in the downstream water height with a constant upstream water height corresponds to a decreased force.Moreover,the vertical column results in a blockage effect on the fluid flow.The greater the blockage effect,the higher the hydrodynamic force.The blockage effect from the vertical column can be neglected when the tank width is greater than eight times the structural cross-section diameter.展开更多
Ink-jetting printing stands out among various conformal additive manufacturing techniques for its multi-material,digital control,and process flexibility.Ink-jetting-based conformal additive manufacturing is renowned f...Ink-jetting printing stands out among various conformal additive manufacturing techniques for its multi-material,digital control,and process flexibility.Ink-jetting-based conformal additive manufacturing is renowned for its adaptability to complex topological surfaces and is emerging as a critical technology for future comprehensive conformal printing systems.This review highlights the distinctiveness of four primary ink-jetting printing techniques in conformal additive manufacturing—piezoelectric jetting,thermal bubble jetting,aerosol jetting,and electrohydrodynamic jetting—and delves into how these attributes endow ink-jetting printing with unique advantages in conformal processes.Furthermore,leveraging these advantages,the review discusses potential applications in conformal electronics,energy devices,biology,and electromagnetics to bolster the ongoing development and application.Considering the current state of this technology,the review identifies critical challenges for future advancements,such as dynamic surface printing,integrated fabrication of multifunctional conformal structures,and the balance between resolution and throughput.This review summarizes the latest research and technological advancements in ink-jetting-based conformal additive manufacturing,aiding in its innovative applications and enhanced manufacturing capabilities in the future.展开更多
Selfishness,understood as excessive focus on the self,appears to be a predominant feature of contemporary culture.While the degree of self-focus is adaptive for survival and decision-making,self-rigidity has been asso...Selfishness,understood as excessive focus on the self,appears to be a predominant feature of contemporary culture.While the degree of self-focus is adaptive for survival and decision-making,self-rigidity has been associated with significant psychological,interpersonal,and social costs.Throughout history,philosophers,religious leaders,and social activists have promoted a“hypo-egoic”way of being,characterized by reduced self-fixation and greater openness to others.However,a key question arises:How can one cultivate a more flexible and interdependent perspective on the self?Deconstructive meditations are a group of contemplative practices that aim to dismantle self-rigidity by exploring perception,cognition,and emotion.Their central mechanism is self-inquiry,an experiential process that involves directly observing patterns of the self,questioning the solidity of identity,and developing new ways to relate to experience.From the perspective of contemplative neuroscience,these practices have been shown to reduce selfnarrative identification and promote psychological flexibility.Despite their potential,empirical research on deconstructive meditations remains limited and requires further investigation.This article reviews the essential findings on practices,their connection to psychotherapy,and their potential therapeutic applications.Finally,their clinical implications are discussed along with future research directions to validate their impact on mental health.展开更多
https://www. sciencedirect. com/journal/energy-and-buildings/vol/346/suppl/C Volume346, 1November2025[OA](1)Towards energy flexible commercial buildings:Machine learning approaches,implementation aspects,and future re...https://www. sciencedirect. com/journal/energy-and-buildings/vol/346/suppl/C Volume346, 1November2025[OA](1)Towards energy flexible commercial buildings:Machine learning approaches,implementation aspects,and future research directions by M. M. A. L. N. Maheepala,Hangxin Li,Dilan Robert,et al,Article116170Abstract:Commercial buildings encounter considerable challenges in predicting and managing energy flexibility,arising from the complexity of their energy systems and the interdependencies among system components and building thermal mass. Nonetheless,the emergence of “smarter buildings” creates significant opportunities for applying machine learning(ML)techniques in energy flexibility.展开更多
Separation of ternary C6 cyclic hydrocarbons,i.e.,benzene/cyclohexene/cyclohexane mixtures,is crucial but challenging in the petrochemical industry due to their extremely similar molecular sizes and physical propertie...Separation of ternary C6 cyclic hydrocarbons,i.e.,benzene/cyclohexene/cyclohexane mixtures,is crucial but challenging in the petrochemical industry due to their extremely similar molecular sizes and physical properties.Here,we design and synthesize a new Zn-based metal azolate framework(MAF),MAF-40,with a threedimensional(3D)honeycomb-like framework and 1D sugar-coated-berry type pore channels.By virtue of the strong coordination bonds and abundant trifluoromethyl groups embedded in the pores,MAF-40 exhibits excellent thermal stability(up to 400℃)and acid-base stability(within a pH range of 3–11).Moreover,MAF-40 shows ultrahigh benzene selectivity(38.8)from the ternary benzene/cyclohexene/cyclohexane mixtures,attributed to the strong adsorption affinity from fluorine for benzene and markedly different vip diffusion limited by the small aperture,which are confirmed by computational simulations and infrared spectra.Thus,the results indicated that MAF-40 would be a candidate adsorbent for the separation and purification of benzene from C6 cyclic hydrocarbons,and this work provides a new insight of synthesizing stable MOF materials for separating multicomponent chemical mixtures.展开更多
基金National Key R&D Program of China of the 13th Five-Year Plan(No.2018YFD1100704)。
文摘To meet the challenge of mismatches between power supply and demand,modern buildings must schedule flexible energy loads in order to improve the efficiency of power grids.Furthermore,it is essential to understand the effectiveness of flexibility management strategies under different climate conditions and extreme weather events.Using both typical and extreme weather data from cities in five major climate zones of China,this study investigates the energy flexibility potential of an office building under three short-term HVAC management strategies in the context of different climates.The results show that the peak load flexibility and overall energy performance of the three short-term strategies were affected by the surrounding climate conditions.The peak load reduction rate of the pre-cooling and zone temperature reset strategies declined linearly as outdoor temperature increased.Under extreme climate conditions,the daily peak-load time was found to be over two hours earlier than under typical conditions,and the intensive solar radiation found in the extreme conditions can weaken the correlation between peak load reduction and outdoor temperature,risking the ability of a building’s HVAC system to maintain a comfortable indoor environment.
基金supported by the Spanish Ministry of Science and Innovation under Projects PID2022-137680OB-C32 and PID2022-139187OB-I00.
文摘Customer segmentation according to load-shape profiles using smart meter data is an increasingly important application to vital the planning and operation of energy systems and to enable citizens’participation in the energy transition.This study proposes an innovative multi-step clustering procedure to segment customers based on load-shape patterns at the daily and intra-daily time horizons.Smart meter data is split between daily and hourly normalized time series to assess monthly,weekly,daily,and hourly seasonality patterns separately.The dimensionality reduction implicit in the splitting allows a direct approach to clustering raw daily energy time series data.The intraday clustering procedure sequentially identifies representative hourly day-unit profiles for each customer and the entire population.For the first time,a step function approach is applied to reduce time series dimensionality.Customer attributes embedded in surveys are employed to build external clustering validation metrics using Cramer’s V correlation factors and to identify statistically significant determinants of load-shape in energy usage.In addition,a time series features engineering approach is used to extract 16 relevant demand flexibility indicators that characterize customers and corresponding clusters along four different axes:available Energy(E),Temporal patterns(T),Consistency(C),and Variability(V).The methodology is implemented on a real-world electricity consumption dataset of 325 Small and Medium-sized Enterprise(SME)customers,identifying 4 daily and 6 hourly easy-to-interpret,well-defined clusters.The application of the methodology includes selecting key parameters via grid search and a thorough comparison of clustering distances and methods to ensure the robustness of the results.Further research can test the scalability of the methodology to larger datasets from various customer segments(households and large commercial)and locations with different weather and socioeconomic conditions.
文摘Five cadmium naphthalene-diphosphonates,formulated as[Cd_(1.5)(1,4-ndpaH_(2))2(4,4'-bpyH)(4,4'-bpy)0.5(H_(2)O)_(2)]2(1),[Cd(1,4-ndpaH_(2))(1,4-bib)0.5(H_(2)O)](2),[Cd(1,4-ndpaH3)2(1,2-dpe)(H_(2)O)]·(1,2-dpe)·7H_(2)O(3),(1,2-bixH)[Cd3(1,4-ndpaH)(1,4-ndpaH_(2))2(H_(2)O)_(2)](4),and[Cd(1,4-ndpaH_(2))(H_(2)O)]·H_(2)O(5),have been synthesized from the selfassembly reactions of 1,4-naphthalenediphosphonic acid(1,4-ndpaH4)with Cd(NO3)2·4H_(2)O by introducing auxiliary ligands with variation of rigidity,such as 4,4'-bipyridine(4,4'-bpy),1,4-bis(1-imidazolyl)benzene(1,4-bib),1,2-di(4-pyridyl)ethylene(1,2-dpe),1,3-di(4-pyridyl)propane(1,3-dpp),and bis(imidazol-1-ylmethyl)benzene(1,2-bix),respectively.Structure resolution by single-crystal X-ray diffraction reveals that compound 1 possesses a layered framework,in which the{Cd3(PO2)2}trimers made up of corner-sharing two{CdO4N2}and one{CdO6}octahedra are connected by phosphonate groups,forming a ribbon,which are cross-linked by 4,4'-bipy ligands,forming a 2D layer.Compound 2 shows a 3D open-framework structure,where chains of corner-sharing{CdO4N}trigonal bipyramids and{PO3C}tetrahedra are cross-linked by 1,4-bib and/or phosphonate groups.A 1D ladder-like chain structure is found in compound 3,where the ladder-like chains made up of corner-sharing{CdO5N}octahedra and{PO3C}tetra hedra are connected by 1,4-ndpaH_(2)^(2-).Both compounds 4 and 5 obtained by the introduction of flexible ligands during the synthesis show a 2D layered structure,which is formed by ligand crosslinking double metal chains.Interestingly,In 4,flexible 1,2-bix was singly protonated,as vip molecules,filled between layer and layer,while flexible ligand 1,3-dpp is absent in 5.Photophysical measurements indicate that compounds 1-5 show ligand-centered emissions.
基金supported by the Shanxi Province Central Guidance Fund for Local Science and Technology Development Project(YDZJSX2024D030)the National Natural Science Foundation of China(22075197,22278290)+2 种基金the Shanxi Province Key Research and Development Program Project(2021020660301013)the Shanxi Provincial Natural Science Foundation of China(202103021224079)the Research and Development Project of Key Core and Common Technology of Shanxi Province(20201102018).
文摘The advancement of planar micro-supercapacitors(PMSCs)for micro-electromechanical systems(MEMS)has been significantly hindered by the challenge of achieving high energy and power densities.This study addresses this issue by leveraging screen-printing technology to fabricate high-performance PMSCs using innovative composite ink.The ink,a synergistic blend of few-layer graphene(Gt),carbon black(CB),and NiCo_(2)O_(4),was meticulously mixed to form a conductive and robust coating that enhanced the capacitive performance of the PMSCs.The optimized ink formulation and printing process result in a micro-supercapacitor with an exceptional areal capacitance of 18.95 mF/cm^(2)and an areal energy density of 2.63μW·h/cm^(2)at a current density of 0.05 mA/cm^(2),along with an areal power density of 0.025 mW/cm^(2).The devices demonstrated impressive durability with a capacitance retention rate of 94.7%after a stringent 20000-cycle test,demonstrating their potential for long-term applications.Moreover,the PMSCs displayed excellent mechanical flexibility,with a capacitance decrease of only 3.43%after 5000 bending cycles,highlighting their suitability for flexible electronic devices.The ease of integrating these PMSCs into series and parallel configurations for customized power further underscores their practicality for integrated power supply solutions in various technologies.
基金financially supported by the National Natural Science Foundation of China(Nos.52303239 and 51933001)Natural Science Foundation of Shandong Province(Nos.ZR2022QB141 and 2023HWYQ-087).
文摘Intrinsic stretchability is a promising attribute of polymer organic solar cells(OSCs).However,rigid molecular blocks typically exhibit poor tensile properties,rendering polymers vulnerable to mechanical stress.In this study,we introduce a different approach utilizing all-small-molecule donors and acceptors to fabricate stretchable OSCs.An elastomer,styrene-b-ethylene-butylene-styrene(SEBS),was embedded to modulate film crystallization and stretchability.SEBS effectively confines the growth process of donors and acceptors,leading to enhancement of the crystallization quality,thus contributing to enhanced device efficiencies.Meanwhile,SEBS can absorb and release mechanical stress during stretching,thereby preventing mechanical degradation of donors and acceptors.The mechanical properties of the OSCs were significantly improved by the incorporation of SEBS.Notably,the crack-onset strain increased from 1.03% to 5.99% with SEBS embedding.These findings present a straightforward strategy for achieving stretchable OSCs using all small molecules,offering a different perspective for realizing stretchable devices.
基金supported by the Beijing Natural Science Foundation(Grant No.JL23004)the National Natural Science Foundation of China(Grant Nos.52473120,52472117,52072010,51972005 and 52325204).
文摘Piezocomposites with both flexibility and electromechanical conversion characteristics have been widely applied in various fields,including sensors,energy harvesting,catalysis,and biomedical treatment.In the composition of piezocomposites or their preparation process,a category of materials is commonly employed that do not possess piezoelectric properties themselves but play a crucial role in performance enhancement.In this review,the concept of auxiliary phase is first proposed to define these materials,aiming to provide a new perspective for designing high-performance piezocomposites.Three different categories of modulation forms of auxiliary phase in piezocomposites are systematically summarized,including the modification of piezo-matrix,the modification of piezo-fillers,and the construction of special structures.Each category emphasizes the role of the auxiliary phase and systematically discusses the latest advancements and the physical mechanisms of the auxiliary phase enhanced flexible piezocomposites.Finally,a summary and future outlook of piezocomposites based on the auxiliary phase are provided.
文摘Executive functions emerge throughout childhood and shape multiple cognitive and behavioral outcomes across the lifespan.Given the importance of these functions,there is considerable interest in understanding the role of environmental enrichment to support their development.The past 20 years have seen the emergence of a body of evidence around the beneficial effects of engaging in physical activity for executive functioning in children.Despite this,there are still unanswered questions,particularly about the confounding effects of the timing and dose of exercise-based interventions.During development,sensitive periods with heightened neural plasticity and sensitivity to environmental influences can offer an optimal time to introduce enrichment interventions.As such,sensitive periods for executive function could indicate an ideal time to introduce physical activity or be a potential confounder to study results if not considered.This narrative review discusses the potential presence of sensitive periods in preadolescent development where physical activity has greater benefits for executive function.Initially,we briefly review the largely parallel fields investigating the presence of sensitive periods for executive function and the effects of physical activity on executive function outcomes.We then bring together these 2 concepts to discuss the theoretical basis for developmentally sensitive periods during which children may be particularly amenable to physical activity-based interventions and offer potential ways forward to investigate this phenomenon.We hope this review will attract researchers to collaborate in the area and extend our current understanding of the development of executive functions as well as interventions like physical activity.
文摘1 People often think of musical memories as fixed images of the past,but a recent study suggests music may do more than just activate memories-it might even change how you remember them.2 The hypothesis(假说)was rooted in the idea that when you recall a memory,it becomes temporarily flexible,allowing new information to be integrated.To prove it,the researchers developed a three⁃day experiment to test whether music played during recall might introduce new emotional elements into the original memory.
文摘The penetration rate of new wind and photovoltaic energy in the power system has increased significantly,and the dramatic fluctuation of the net load of the grid has led to a severe lack of flexibility in the regional grid.This paper proposes a hierarchical optimal dispatch strategy for a high proportion of new energy power systems that considers the balanced response of grid flexibility.Firstly,various flexibility resource regulation capabilities on the source-load side are analyzed,and then flexibility demand and flexibility response are matched,and flexibility demand response assessment is proposed;then,a hierarchical optimal dispatch model of the grid taking flexibility adjustment capability into account is established,and the upper model optimizes the net load curve with the objectives of minimizing the fluctuation of the net load,maximizing the benefits of energy storage and controllable loads,and optimizing the flexibility adjustment capability.The upper layer model optimizes the net load curve by minimizing net load fluctuation,maximizing energy storage and controllable load revenue,and optimizing flexibility adjustment capability.In contrast,the lower layer model optimizes the power allocation of thermal power units and regulates the lost load of wind and solar power generation by minimizing the total system operating cost.The results show that the proposed strategy improves the flexibility of the grid by 15.2%,gives full play to the regulation capability of each flexibility resource,and reduces the fluctuation of the net load by 15.6%to achieve optimal coordination between different types of flexibility resources.
基金supported by the Ratchadapisek Sompoch Endowment Fund,Chulalongkorn University,Thailand(Grant No.:RCU_67_023_010).
文摘Fluvoxamine(FXM)is a well-known selective serotonin reuptake inhibitor(SSRI)for treating depression and has recently been repurposed for efficacious treatment of coronavirus disease 2019.Although cyclodextrin(CD)encapsulation effectively improves the physicochemical properties of structurally diverse SSRIs,the molecular understanding of their associations is deficient.This comprehensive study used single-crystal X-ray diffraction integrated with density functional theory(DFT)calculation to provide deep insights into the conformationally flexible FXM and its inclusion complexation withβ-CD.Xray analysis revealed the first crystallographic evidence of the uncomplexed 3FXM-H^(+)·3maleate-(1).Three FXM-H^(+)ions are counter-balanced by three planar maleate-ions to form a thin layer stabilized by infinite fused H-bond rings R_(4)^(4)(12)and R_(6)^(4)(16)and the interplay ofπ…π,CF…πand F…F interactions.For 2β-CD·2FXM-H^(+)·maleate^(2-)·23·2H_(2)O(2),the tail-to-tailβ-CD dimer encapsulates two FXM-H^(+)4-(trifluoromethyl)phenyl moieties,which are charge-balanced by the rare non-planar maleate2and stabilized by N…OH…O H-bonds and F…F interactions.This is a hostevip recognition pattern uniquely observed for allβ-CD complexes with halogen(X)-bearing SSRIs,indicating the essence of X…X interactions and the shielding of X-containing moieties in the wall of theβ-CD dimer.DFT calculations unveiled that the monomeric and dimericβ-CD-FXM complexes and FXM isomers are energetically stable,which alleviates the numbness and bitterness of the orally administered drug as previously patented.Additionally,an insightful conformational analysis of FXM emphasizes the importance of drug structural adaptation in pharmacological functions.
文摘Objectives:This study aimed to assess the reliability and validity of the abbreviated Committed Action Questionnaire(CAQ-8)in a cohort of 1635 Chinese university students.Methods:Participants completed the Chinese version of the CAQ-8 along with other standardized measures,including the Acceptance and Action Questionnaire-II(AAQ-II),the Valuing Questionnaire(VQ),the Satisfaction with Life Scale(SWLS),the Depression Anxiety Stress Scales(DASS-21),and the World Health Organization Fiveitem Well-Being Index(WHO-5).A retest was conducted one month later with 300 valid responses.Results:Exploratory factor analysis(n=818)identified a 2-factor structure,confirmed through validated factor analysis(n=817),showing good fit indices(CFI=0.990,RMSEA=0.040).Measurement equivalence across genders was established.The CAQ-8 showed significant positive correlations with life satisfaction,mental health,and values,and negative correlations with depression,anxiety,stress,and experiential avoidance.The scale demonstrated good internal consistency(Cronbach’sα=0.76)and retest reliability(ICC=0.70).Network analysis confirmed the robustness of the 2-factor model,with item 4 in CAQ-8 identified as a core item.Conclusion:The CAQ-8 is a reliable and valid tool for measuring committed action within the psychological flexibility model in Chinese populations.
基金supported by the Philosophy and Social Sciences Planning Foundation of Tianjin(Grant No.TJJX22-006).
文摘Background:With the proliferation of smartphones,adolescent mobile phone dependency has intensified,potentially precipitating academic burnout and other adverse outcomes among students.Contemporary study mostly examines college populations,resulting in a lack of exploration on the internal mechanisms connecting mobile phone dependency to academic burnout.In addition to analysing the chain-mediated effects of sleep quality and cognitive flexibility,this study sought to provide theoretical insights for prevention by applying the Conservation of Resources theory to examine the relationship between academic burnout and mobile phone dependency among middle and high school students.Methods:A cluster convenience sampling approach was adopted.Data were collected from 811 middle and high school students in Tianjin,China,using a paper-based questionnaire battery comprising the Mobile Phone Addiction Index,the Pittsburgh Sleep Quality Index,the Cognitive Flexibility Scale,and the Adolescent Academic Burnout Scale.Descriptive statistics and correlation analyses were conducted using SPSS 25.0.Chain mediation effects were examined via the PROCESS macro,with significance assessed using bias-corrected bootstrap 95%confidence intervals.Results:A statistically significant positive link exists between mobile phone dependency and academic burnout among middle and high school students(r=0.575,p<0.001).Dependence on mobile phones had a substantial direct impact on academic burnout(β=0.303,p<0.001).Chain mediation analysis revealed that mobile phone dependency had a substantial direct impact on academic burnout(β=0.303,p<0.001).Sleep quality and cognitive flexibility mediated the link between mobile phone dependency and academic burnout.These indirect pathways represent 44.18%of the total effect.Conclusions:Mobile phone dependency contributes to academic burnout amongmiddle and high school students,mediated sequentially by sleep quality and cognitive flexibility.These findings suggest a potential intervention strategy to mitigate academic burnout by targeting excessive mobile phone use,enhancing sleep hygiene,and implementing cognitive flexibility training.
文摘Objective:To analyze the mediating effect of psychological flexibility between death anxiety and quality of life in cancer patients.Methods:A convenience sampling method was used to select cancer patients who received treatment at our hospital from January 2022 to January 2024,by the inclusion and exclusion criteria.General information,psychological flexibility,death anxiety,and quality of life scores were collected for analysis.Result:The psychological flexibility and quality of life scores of cancer patients with an annual family income≤100,000 RMB were significantly lower than those of cancer patients with an annual family income>100,000 RMB(P<0.05),while the death anxiety scores were significantly lower for the former group as well(P<0.05).Cancer patients staged as Ⅰ-Ⅱ had significantly higher psychological flexibility and quality of life scores than those staged as Ⅲ-Ⅳ(P<0.05),while their death anxiety scores were significantly lower(P<0.05).Psychological flexibility in cancer patients was negatively correlated with death anxiety(r=-0.614,P<0.05)and positively correlated with quality of life(r=0.628,P<0.05),while death anxiety was negatively correlated with quality of life(r=-0.112,P<0.05).The direct effect of death anxiety on quality of life was-0.232,accounting for 58.32%of the total effect.The mediating effect of psychological flexibility between death anxiety and quality of life was-0.218,accounting for 41.83%of the total effect.Conclusion:Death anxiety can directly affect the quality of life of cancer patients,and it can also indirectly affect the quality of life through psychological flexibility.Clinicians should promptly address patients’death anxiety and provide interventions to enhance psychological flexibility,thereby improving the quality of life.
文摘The flexible satellite batch production line is a complex discrete production system with multiple cross-disciplinary fields and mixed serial parallel tasks.As the source of the satellite batch production line process,the warehousing system has urgent needs such as uncertain production scale and rapid iteration and optimization of business processes.Therefore,the requirements and architecture of complex discrete warehousing systems such as flexible satellite batch production lines are studied.The physical system of intelligent equipment is abstracted as a digital model to form the underlying module,and a digital fusion framework of“business domain+middleware platform+intelligent equipment information model”is constructed.The granularity of microservice splitting is calculated based on the dynamic correlation relationship between user access instances and database table structures.The general warehousing functions of the platform are divided to achieve module customization,addition,and configuration.An open discrete warehousing system based on microservices is designed.Software architecture and design develop complex discrete warehousing systems based on the SpringCloud framework.This architecture achieves the decoupling of business logic and physical hardware,enhances the maintainability and scalability of the system,and greatly improves the system’s adaptability to different complex discrete warehousing business scenarios.
基金financially supported by the China Postdoctoral Science Foundation(No.2024M751205)。
文摘Flexible phase change materials(PCMs)have become increasingly critical to address the demand for thermal management in electronic technologies and energy conversion.However,their application remains challenging because of their rigidity,liquid leakage,and insufficient thermal conductivity.Herein,flexible glutamic acid@natural rubber/paraffin wax(PW)/carbon nanotubes-graphene nanoplatelets(GNR/PW/CGNP)phase change composites with high thermal conductivity,excellent shape stability,and recyclability were reported.Zn^(2+)-based dynamic crosslinking was constructed through the reaction of zinc acetate and carboxyl groups on glutamic acid@natural rubber(GNR),which was used as a flexible matrix to physically blend with paraffin wax/carbon nanotubes/graphene nanoplatelets(PW/CGNP)to achieve uniform dispersion of PW/CGNP,continuous thermal conductivity networks,and good encapsulation of PW.The GNR/PW/CGNP composites showed excellent mechanical strength,flexibility,and recycling ability,and effective encapsulation prevented the outflow of melted PW during the phase transition.Also,the phase change enthalpy could attain 111.1 J/g with a higher thermal conductivity of 1.055 W/m K,428%higher than that of pure PW owing to the formation of efficient thermal conductive pathways,which exhibited outstanding thermal management performance and superior temperature control behavior in electronic devices.The developed flexible composite PCMs may open new possibilities for next-generation flexible thermal management electronics.
基金The National Natural Science Foundation of China(No.52222804,U21A20154).
文摘Past investigations of the hydrodynamic forces on vertical columns have generally been based on rigid structure assumptions.The effects of structural flexibility and geometry characteristics on the hydrodynamic force distribution are not well understood.In this study,fluid-structure interaction models are developed for numerical analyses.This modeling technique is verified with an experimental test in the literature using both circular and rectangular cross-sections.A series of material elasticities that present structural properties ranging from rigid to flexible is then used to conduct analyses.This finding indicates that an increase in structural flexibility can decrease the impact force to some extent,but this effect is limited.A concrete bridge pier with fluid flow impact can be considered rigid when it is fixed at the bottom.After that,the effects of the initial downstream water height and the width of water tank on the hydrodynamic force are thoroughly investigated.The results demonstrate that the increase in the downstream water height with a constant upstream water height corresponds to a decreased force.Moreover,the vertical column results in a blockage effect on the fluid flow.The greater the blockage effect,the higher the hydrodynamic force.The blockage effect from the vertical column can be neglected when the tank width is greater than eight times the structural cross-section diameter.
基金supported by the National Natural Science Foundation of China(Grant Nos.52005059 and 52375306)the Open Foundation of the Key Laboratory of Advanced Marine Materials(Grant No.2024K01)the Graduate Research and Innovation Foundation of Chongqing,China(Grant No.CYB240011)。
文摘Ink-jetting printing stands out among various conformal additive manufacturing techniques for its multi-material,digital control,and process flexibility.Ink-jetting-based conformal additive manufacturing is renowned for its adaptability to complex topological surfaces and is emerging as a critical technology for future comprehensive conformal printing systems.This review highlights the distinctiveness of four primary ink-jetting printing techniques in conformal additive manufacturing—piezoelectric jetting,thermal bubble jetting,aerosol jetting,and electrohydrodynamic jetting—and delves into how these attributes endow ink-jetting printing with unique advantages in conformal processes.Furthermore,leveraging these advantages,the review discusses potential applications in conformal electronics,energy devices,biology,and electromagnetics to bolster the ongoing development and application.Considering the current state of this technology,the review identifies critical challenges for future advancements,such as dynamic surface printing,integrated fabrication of multifunctional conformal structures,and the balance between resolution and throughput.This review summarizes the latest research and technological advancements in ink-jetting-based conformal additive manufacturing,aiding in its innovative applications and enhanced manufacturing capabilities in the future.
文摘Selfishness,understood as excessive focus on the self,appears to be a predominant feature of contemporary culture.While the degree of self-focus is adaptive for survival and decision-making,self-rigidity has been associated with significant psychological,interpersonal,and social costs.Throughout history,philosophers,religious leaders,and social activists have promoted a“hypo-egoic”way of being,characterized by reduced self-fixation and greater openness to others.However,a key question arises:How can one cultivate a more flexible and interdependent perspective on the self?Deconstructive meditations are a group of contemplative practices that aim to dismantle self-rigidity by exploring perception,cognition,and emotion.Their central mechanism is self-inquiry,an experiential process that involves directly observing patterns of the self,questioning the solidity of identity,and developing new ways to relate to experience.From the perspective of contemplative neuroscience,these practices have been shown to reduce selfnarrative identification and promote psychological flexibility.Despite their potential,empirical research on deconstructive meditations remains limited and requires further investigation.This article reviews the essential findings on practices,their connection to psychotherapy,and their potential therapeutic applications.Finally,their clinical implications are discussed along with future research directions to validate their impact on mental health.
文摘https://www. sciencedirect. com/journal/energy-and-buildings/vol/346/suppl/C Volume346, 1November2025[OA](1)Towards energy flexible commercial buildings:Machine learning approaches,implementation aspects,and future research directions by M. M. A. L. N. Maheepala,Hangxin Li,Dilan Robert,et al,Article116170Abstract:Commercial buildings encounter considerable challenges in predicting and managing energy flexibility,arising from the complexity of their energy systems and the interdependencies among system components and building thermal mass. Nonetheless,the emergence of “smarter buildings” creates significant opportunities for applying machine learning(ML)techniques in energy flexibility.
基金supported by the National Natural Science Foundation of China(Nos.22090061,22488101,22475240,and 22231012)the State Key Laboratory of Catalysis(No.2024SKL-A-010).
文摘Separation of ternary C6 cyclic hydrocarbons,i.e.,benzene/cyclohexene/cyclohexane mixtures,is crucial but challenging in the petrochemical industry due to their extremely similar molecular sizes and physical properties.Here,we design and synthesize a new Zn-based metal azolate framework(MAF),MAF-40,with a threedimensional(3D)honeycomb-like framework and 1D sugar-coated-berry type pore channels.By virtue of the strong coordination bonds and abundant trifluoromethyl groups embedded in the pores,MAF-40 exhibits excellent thermal stability(up to 400℃)and acid-base stability(within a pH range of 3–11).Moreover,MAF-40 shows ultrahigh benzene selectivity(38.8)from the ternary benzene/cyclohexene/cyclohexane mixtures,attributed to the strong adsorption affinity from fluorine for benzene and markedly different vip diffusion limited by the small aperture,which are confirmed by computational simulations and infrared spectra.Thus,the results indicated that MAF-40 would be a candidate adsorbent for the separation and purification of benzene from C6 cyclic hydrocarbons,and this work provides a new insight of synthesizing stable MOF materials for separating multicomponent chemical mixtures.
