This article is the 19th contribution to the fungal diversity notes series,in which 106 taxa distributed in 3 phyla,11 classes,35 orders,and 64 families are treated.Taxa described in the present study include a new fa...This article is the 19th contribution to the fungal diversity notes series,in which 106 taxa distributed in 3 phyla,11 classes,35 orders,and 64 families are treated.Taxa described in the present study include a new family,5 new genera,69 new species,3 new combinations,25 new host,habitat,and geographical records,a new name,a new collection,as well as reinstating a previously suppressed genus.The newly established family is Parasporidesmiaceae and the five new genera described herein are Dematiodidymosporum,Neoacrogenospora,Parasporidesmium,Speluncomyces,and Uniomyces.The 69 new species are Acrocalymma triseptatum,Agaricus darjeelingensis,Annellophorella aquatica,Anteaglonium menghaiense,Balsamia microspora,Bambusicola dehongensis,Barriopsis menglaense,Benjaminiomyces bergonzoi,Camporesiomyces aquaticus,Camporesiomyces wurfbainiae,Cercospora palmata,Chrysomphalina cantharella,Colletotrichum heteropanacicola,Conioscypha guizhouensis,Conioscypha yadongensis,Cora dalfornoae,Cylindromonium brasiliense,Dematiodidymosporum aquaticum,Distoseptispora dinghuensis,Distoseptispora zunyiensis,Ebollia neocarnea,Eudimeromyces aequatorialis,Eudimeromyces euconni,Funalia indica,Fuscosporella ovalis,Fuscosporella yunnanensis,Halobasidium csapodyae,Halokirschsteiniothelia hunanensis,Hongkongmyces xishuangbannaensis,Inocybe ispartaensis,Laboulbenia neofrancoisiana,Lachnella kunmingensis,Lasmenia thailandica,Leptospora cannabini,Lycoperdon sridharii,Myxospora neomasonii,Natipusilla aquatica,Neoacrogenospora aquatica,Neomassaria sinensis,Neovaginatispora juglandis,Niesslia yunnanensis,Ophiocordyceps aseptatospora,Oxneriaria sheosarensis,Paramicrosphaeropsis vitis,Paramyrothecium strychni,Parapaucispora aquatica,Parasporidesmium aquaticum,Parmelia neosaxatilis,Periconia bambusicola,Periconia neohongheensis,Peroneutypa thailandica,Polyozellus albus,Porina magnoliae,Porostereum subspadiceum,Pseudosperma subvolvatum,Pseudothyridariella caseariae,Rhexocercosporidium ferulae,Russula rubroglutinata,Septoriella iranica,Seriascoma asexuale,Sesquicillium flavum,Sirastachys zhongkaiensis,Speluncomyces lunatus,Sporidesmiella yunnanensis,Striaticonidium xishuangbannaensis,Trametopsis indica,Tulostoma hyderabadensis,Uniomyces hakkeijimanus,and Virgaria guizhouensis.The three new combinations are Lycoperdon alpinum,Lycoperdon lloydii,and Lycoperdon macrogemmae.The 25 new records comprise Acremonium sclerotigenum,Agroathelia rolfsii,Alfaria terrestris,Aspergillus cejpii,Colletotrichum brevisporum,Coriolopsis brunneoleuca,Coriolopsis hainanensis,Cytospora tamaricicola,Fomitopsis malicola,Fulvifomes fastuosus,Fulvifomes thailandicus,Funalia cystidiata,Funalia subgallica,Longididymella vitalbae,Lopharia mirabilis,Metarhizium viridulum,Neopestalotiopsis haikouensis,Occultibambusa aquatica,Phaeoacremonium scolyti,Phaeocytostroma virdimurae,Puccinia mysuruensis,Rhizopus stolonifer,Serpula similis,Trametes ellipsospora,and Vamsapriya shiwandashanensis.In addition,the new name is Irpiciporus pseudoxuchilensis,and the new collection is Aspergillus sydowii.The previously suppressed genus Eudimeromyces has been taxonomically reinstated.展开更多
Indoor localization is a fundamental requirement for future 6G Intelligent Sensing and Communication(ISAC)systems,enabling precise navigation in environments where Global Positioning System(GPS)signals are unavailable...Indoor localization is a fundamental requirement for future 6G Intelligent Sensing and Communication(ISAC)systems,enabling precise navigation in environments where Global Positioning System(GPS)signals are unavailable.Existing methods,such as map-based navigation or site-specific fingerprinting,often require intensive data collection and lack generalization capability across different buildings,thereby limiting scalability.This study proposes a cross-site,map-free indoor localization framework that uses low-frequency sub-1 GHz radio signals and a Transformer-based neural network for robust positioning without prior environmental knowledge.The Transformer’s self-attention mechanisms allow it to capture spatial correlations among anchor nodes,facilitating accurate localization in unseen environments.Evaluation across two validation sites demonstrates the framework’s effectiveness.In crosssite testing(Site-A),the Transformer achieved a mean localization error of 9.44 m,outperforming the Deep Neural Network(DNN)(10.76 m)and Convolutional Neural Network(CNN)(12.02 m)baselines.In a real-time deployment(Site-B)spanning three floors,the Transformer maintained an overall mean error of 9.81 m,compared with 13.45 m for DNN,12.88 m for CNN,and 53.08 m for conventional trilateration.For vertical positioning,the Transformer delivered a mean error of 4.52 m,exceeding the performance of DNN(4.59 m),CNN(4.87 m),and trilateration(>45 m).The results confirm that the Transformer-based framework generalizes across heterogeneous indoor environments without requiring site-specific calibration,providing stable,sub-12 m horizontal accuracy and reliable vertical estimation.This capability makes the framework suitable for real-time applications in smart buildings,emergency response,and autonomous systems.By utilizing multipath reflections as an informative structure rather than treating them as noise,this work advances artificial intelligence(AI)-native indoor localization as a scalable and efficient component of future 6G ISAC networks.展开更多
BACKGROUND Persistent sinus tachycardia affects up to 40%of patients after heart transplantation and is linked with graft dysfunction,impaired diastolic filling,and increased morbidity.Conventional rate-limiting thera...BACKGROUND Persistent sinus tachycardia affects up to 40%of patients after heart transplantation and is linked with graft dysfunction,impaired diastolic filling,and increased morbidity.Conventional rate-limiting therapies such as betablockers and calcium channel blockers are quite often contraindicated due to risks of bradyarrhythmia or hypotension.Ivabradine,a selective I(f)channel inhibitor,reduces heart rate(HR)without negative inotropic or hypotensive effects.AIM To evaluate the efficacy and safety of ivabradine in heart transplant recipients.METHODS A comprehensive search of PubMed,EMBASE,Scopus,Cochrane Library,and Google Scholar was conducted from inception to April 15,2025.Eligible studies evaluated ivabradine in heart transplant recipient vs placebo or metoprolol,reporting HR,mortality,left ventricular mass(LVM),or safety.Data were independently extracted by two reviewers,and quality was assessed.Review Manager 5.4 performed pooled analyses using random-effects models.Mean differences(MD)or standardized MD(SMD)were calculated for continuous outcomes,and risk ratios for dichotomous outcomes.RESULTS Of 415 records identified,four studies comprising 264 patients(126 ivabradine,138 control)met the inclusion criteria.Ivabradine significantly reduced resting HR compared with controls(MD=-11.06 beats per minute;95%CI:-19.50 to-2.62;P<0.00001;I^(2)=93%).Sensitivity analysis demonstrated consistent findings(SMD=-6.74;95%CI:-9.23 to-4.24;I^(2)=0%).No significant difference in all-cause mortality was observed(MD=0.52;95%CI:0.17-1.64;P=0.27;I^(2)=85%).Pooled analysis of LVM revealed no significant effect of ivabradine(MD=-3.57 g;95%CI:-29.21 to 22.08;P=0.79;I^(2)=73%),with sensitivity analysis confirming neutrality.Adverse events were rare and mostly comparable between groups.CONCLUSION Ivabradine reduces HR effectively in heart transplant recipients without added adverse outcomes,supporting its use as safe and well-tolerated alternative when conventional agents are unsuitable.Despite potential clinical benefit,small sample size and heterogeneity the need for larger randomized trials to confirm long-term outcomes and establish ivabradine’s role in post-transplant care.展开更多
Natural resources,green energy,and sustainable development are closely linked with concepts that carry mutual goals to endorse social equity,economic prosperity,and ecological stability while curtailing the harmful in...Natural resources,green energy,and sustainable development are closely linked with concepts that carry mutual goals to endorse social equity,economic prosperity,and ecological stability while curtailing the harmful influence on the globe.However,the recognition of the Sustainable Development Goals(SDG-7,SDG-13)is closely entangled with digital economy.In this pursuit,this study scrutinizes the effect of dig-italization,renewable energy,and natural resources on the ecological footprint in China from 1990Q1-2022Q4.The empirical analyses are carried out by employing the Quantile-on-Quantile regression,and cross-quantile and partial cross-quantile correlation approaches to inspect the tail dependence of model parameters.The empirical outcomes highlight how China’s environmental quality is influenced by exoge-nous variables,including digitalization index,renewable energy consumption,and natural resources.Digitalization has adverse impact on the ecological footprint in lower quantiles,while insignificant in higher quantiles.Moreover,a strong adverse association exists between ecological footprint and renew-able energy,which syndicate all the quantiles of renewable energy with linking over lower to middle quantiles and weak in higher quantiles of ecological footprint.Besides,the estimated analysis discloses nuanced dependencies across various quantiles.Similarly,it can be found that the strong negative effect of natural resources on ecological footprint in initial quantiles,moderate in middle quantiles,and less positive effect in higher quantiles.By explaining these dynamics,the current study offers valuable intu-itions designed at controlling China toward its dual-carbon target and encouraging the development of a sustainable digital and green economy and thereby,continuing towards achieving SDG-7,and SDG-13 objectives.展开更多
Background Sustained lipolysis exacerbates subclinical ketosis(SCK)in dairy cows and is associated with inflammation and adipose tissue macrophage(ATM)infiltration.While ATM involvement in adipose homeostasis and infl...Background Sustained lipolysis exacerbates subclinical ketosis(SCK)in dairy cows and is associated with inflammation and adipose tissue macrophage(ATM)infiltration.While ATM involvement in adipose homeostasis and inflammation in early lactation is recognized,a comprehensive exploration of ATM polarization phenotypes in SCK cows is lacking.This study aimed to characterize ATM polarization and its link to lipolysis and inflammation in SCK cows.Results Subcutaneous adipose tissue samples were obtained from dairy cows to analyze protein expression and gene profiles.Compared with healthy cows,SCK cows had higher serum BHBA and NEFA,smaller adipocytes,and increased expression of lipolytic enzymes(LIPE,ATGL),indicating enhanced lipolysis.Decreased levels of FASN,PPARγ,p-SMAD3,and TGFβsuggested impaired adipogenesis.Inflammatory markers(TNF-α,IFN-γ,TLR4,Caspase1)and NFκB signaling activity were elevated.ATM infiltration was supported by increased CD9,CD68,TREM2,and CXCL1 expression.Protein abundance of M1 polarization markers(iNOS,CD86 and CCL2)in ATMs were associated with greater levels of NOS2,IL1B,CD86 and CCL2 mRNA expression in SCK cows;fluorescence intensity of NOS2 and CD86 also was elevated,alongside a higher proportion of CD68+/CD86+immunopositive cells within adipose tissue.ELISA further quantified increased concentrations of IL-1β and CCL2.Conversely,the abundance of ATM M2 polarization markers,including CD206,IL-10,KLF4,and Arg1,at both the protein and mRNA levels demonstrated a decline.Meanwhile,the proportion of CD68+/CD206+immune response cells was relatively low in SCK cows.Conclusions Overall,the present study indicated an augmented macrophage presence within adipose tissue during subclinical ketosis,with a predominance of pro-inflammatory macrophages(M1 ATM).This observation suggested a vicious cycle wherein macrophage infiltration and pro-inflammatory polarization coincide with enhanced lipolysis and an amplified inflammatory cascade.展开更多
Pakistan has a rich fauna of planthoppers but members of the family Meenoplidae have not been reported from this region.In this study Nisa atrovenosa of the family Meenoplidae is recorded for the first time from Khybe...Pakistan has a rich fauna of planthoppers but members of the family Meenoplidae have not been reported from this region.In this study Nisa atrovenosa of the family Meenoplidae is recorded for the first time from Khyber Pakhtunkhwa Province of Pakistan.A morphological description and illustrations are provided.展开更多
The global significance of forest ecosystems requires precise determination of the amount of carbon stored in different forest ecosystems. Regular monitoring of forests can aid in designing efficient climate change co...The global significance of forest ecosystems requires precise determination of the amount of carbon stored in different forest ecosystems. Regular monitoring of forests can aid in designing efficient climate change control strategies at national and global scale specially in reducing emissions from deforestation and degradation strategies. This research is designed to focus on determining deforestation of study area from 2001 to 2011 using Remote Sensing (RS) and Geographic Information System (GIS) techniques. This research provided rate and amount of degradation of forests in the study area and was quite helpful in formulating a strategy to earn carbon credits consistently and, therefore, will help in the uplifting of the standards of local population.展开更多
Clean energy and a sustainable environment are grand challenges that the world is facing which can be addressed by converting solar energy into transportable and storable fuels(chemical fuel).The main scientific and t...Clean energy and a sustainable environment are grand challenges that the world is facing which can be addressed by converting solar energy into transportable and storable fuels(chemical fuel).The main scientific and technological challenges for efficient solar energy conversion,energy storage,and environmental applications are the stability,durability,and performance of low-cost functional materials.Among different nanomaterials,perovskite type LaFeO_(3)has been extensively investigated as a photocatalyst due to its abundance,high stability,compositional and structural fexibility,high electrocatalytic activity,efficient sunlight absorption,and tunable band gap and band edges.Hence,it is urgent to write a comprehensive review to highlight the trend,challenges,and prospects of LaFeO_(3)in the field of photocatalytic solar energy conversion and environment purification.This critical review summarizes the history and basic principles of photocatalysis.Further,it reviews in detail the LaFeO_(3),applications,shortcomings,and activity enhancement strategies including the design of nanostructures,elemental doping,and heterojunctions construction such as Type-I,Type-II,Z-Type,and uncommon heterojunctions.Besides,the optical and electronic properties,charge carriers separation,electron transport phenomenon and alignment of the band gaps in LaFeO_(3)-based heterostructures are comprehensively discussed.展开更多
Sodium-ion batteries(SIBs)are potential candidates for the replacement of lithium-ion batteries to meet the increasing demands of electrical storage systems due to the low cost and high abundance of sodium.Sodium supe...Sodium-ion batteries(SIBs)are potential candidates for the replacement of lithium-ion batteries to meet the increasing demands of electrical storage systems due to the low cost and high abundance of sodium.Sodium superionic conductor(NASICON)structured materials have attracted enormous interest in recent years as electrode materials for safer and long-term performance of SIBs for electric energy storage smart grids.These materials have a threedimensional robust framework,high redox potential,thermal stability,and a fast Na^(+)-ion diffusion mechanism.However,NASICON has low intrinsic electronic conductivity,which limits the electrochemical performance.This review describes the structural features of NASICONs to illustrate the ion storage mechanism and electrochemical performance of SIBs.Details of the NASICON crystal structure,the affiliated Na^(+)-ion diffusion mechanism,morphology,and electrochemical performance of these materials in sodiumion half-cells as well as full cells are described.In addition to the application as electrode materials,the use of NASICONs as solid electrolytes is also elaborated in solid-state SIBs.Based on these aspects,we have provided more perspectives in terms of the commercialization of SIBs and strategies to overcome the limitations of NASICONs.Hence,this review is expected to provide the researchers of energy storage with an in-depth understanding of NASICON materials with the knowledge of structural features,which will provide a new avenue on the practicality of SIBs.展开更多
Sunflower (Helianthus annuus L.) has emerged as an economically important crop in Pakistan due to its significant share in vegetable oil production. The plant metabolic processes require protein to increase the vegeta...Sunflower (Helianthus annuus L.) has emerged as an economically important crop in Pakistan due to its significant share in vegetable oil production. The plant metabolic processes require protein to increase the vegetative, reproductive growth and yield of the crop. The protein is wholly dependent upon the amount of nitrogen fertilization available for plant use. A two-year field study was conducted in 2008 and 2009. The objective was to determine the effect of different nitrogen (N) levels (N1 = 0 kg·ha–1, N2 = 60 kg·ha–1, N3 = 120 kg·ha–1, N4 = 180 kg·ha–1 and N5 = 240 kg·ha–1) on three sunflower hybrids (Hysun-33, Hysun-38 and Poineer-64A93) in agro-climatic conditions of Gujranwala, a sub-humid region in the centre of the Punjab province of Pakistan. A randomized complete block design split plot experiment was set-up with cultivars in the main plots and N levels in the subplots. Results showed that Hysun-38 gave maximum TDM (15815 kg·ha–1) and maximum grain yield (3389 kg·ha–1), while minimum TDM (14640 kg·ha–1) and grain yield (3125 kg·ha–1) was observed in Hysun-33. Among different N rates evaluated, N4 gave maximum TDM (17890 kg·ha–1) and grain yield (3809 kg·ha–1) compared to the other N rates. The maximum oil content (46.2%) was observed in Hysun-38 without application of N fertilizer (N1), while the minimum oil content (40.6%) was observed from N5 treatment. In conclusion, the application of 180 kg·ha–1 N to Hysun-38 provided the best combination for good yield in sunflower crop under the prevailing sub-humid conditions of Pakistan.展开更多
In the current study simultaneous reactions of hydrodesulfurization(HDS) of dibenzothiophene(DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic(Co-Mo/Al2O3 and Ni-Mo/Al2O3) and t...In the current study simultaneous reactions of hydrodesulfurization(HDS) of dibenzothiophene(DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic(Co-Mo/Al2O3 and Ni-Mo/Al2O3) and tri-metallic(Pd-Co-Mo/Al2O3 and Pd-Ni-Mo/Al2O3) catalyst systems which were prepared by incipient impregnation method.In situ hydrogen utilization and low Pd loadings were the major targets of this study.For comparison purpose,catalytic activity was separately determined for both the methanol reforming and HDS of DBT reactions as well.Ni based catalysts were confirmed with better activity than Co ones for both the reactions with Pd promoted ones ranking at the top i.e.Pd-Ni-Mo/Al2O3 > Ni-Mo/Al2O3 > Pd-Co-Mo/Al2O3 > Co-Mo/Al2O3 where Pd-Ni-Mo/Al2O3 showed 91% DBT conversion at 380 ℃ and 12 h reaction time.Some of the selected organic additives on catalytic activity were tested for their effect toward HDS reaction which was unique with close relation to their chemical nature.Reaction products were quantitatively and qualitatively analyzed via HPLC and GC-MS techniques respectively which helped in elucidating reaction mechanism.展开更多
High-purity(99%)carbon nanocoils(CNCs)have been synthesized by using porousα-Fe2O3/SnO2 catalyst.The yield of CNCs reaches 9,098%after a 6 h growth.This value is much higher than the previously reported data,indicati...High-purity(99%)carbon nanocoils(CNCs)have been synthesized by using porousα-Fe2O3/SnO2 catalyst.The yield of CNCs reaches 9,098%after a 6 h growth.This value is much higher than the previously reported data,indicating that this method is promising to synthesize high-purity CNCs on a large scale.It is considered that an appropriate proportion of Fe and Sn,proper particle size distribution,and a loose-porous aggregate structure of the catalyst are the key points to the high-purity growth of CNCs.Benefiting from the high-purity preparation,a CNC Buckypaper was successfully prepared and the electrical,mechanical,and electrochemical properties were investigated comprehensively.Furthermore,as one of the practical applications,the CNC Buckypaper was successfully utilized as an efficient adsorbent for the removal of methylene blue dye from wastewater with an adsorption efficiency of 90.9%.This study provides a facile and economical route for preparing high-purity CNCs,which is suitable for large-quantity production.Furthermore,the fabrication of macroscopic CNC Buckypaper provides promising alternative of adsorbent or other practical applications.展开更多
A membrane contactor using ionic liquids(ILs) as solvent for pre-combustion capture CO_2 at elevated temperature(303-393 K) and pressure(20 bar) has been studied using mathematic model in the present work. A comprehen...A membrane contactor using ionic liquids(ILs) as solvent for pre-combustion capture CO_2 at elevated temperature(303-393 K) and pressure(20 bar) has been studied using mathematic model in the present work. A comprehensive two-dimensional(2 D) mass-transfer model was developed based on finite element method. The effects of liquid properties, membrane configurations, as well as operation parameters on the CO_2 removal efficiency were systematically studied. The simulation results show that CO_2 can be effectively removed in this process. In addition, it is found that the liquid phase mass transfer dominated the overall mass transfer. Membranes with high porosity and small thickness could apparently reduce the membrane resistance and thus increase the separation efficiency. On the other hand, the membrane diameter and membrane length have a relatively small influence on separation performance within the operation range.展开更多
Water is essential for the growth period of crops;however,water unavailability badly affects the growth and physiological attributes of crops,which considerably reduced the yield and yield components in crops.Therefor...Water is essential for the growth period of crops;however,water unavailability badly affects the growth and physiological attributes of crops,which considerably reduced the yield and yield components in crops.Therefore,a pot experiment was conducted to investigate the effect of foliar phosphorus(P)on morphological,gas exchange,biochemical traits,and phosphorus use efficiency(PUE)of maize(Zea mays L.)hybrids grown under normal as well as water deficit situations at the Department of Agronomy,University of Agriculture Faisalabad,Pakistan in 2014.Two different treatments(control and P@8 kg ha^(−1))and four hybrids(Hycorn,31P41,65625,and 32B33)of maize were tested by using a randomized complete block design(RCBD)with three replications.Results showed that the water stress caused a remarkable decline in total soluble protein(9.7%),photosynthetic rate(9.4%)and transpiration rate(13.4%),stomatal conductance(10.2%),and internal CO_(2)rate(20.4%)comparative to well-watered control.An increase of 37.1%,36.8%,and 24.5%were recorded for proline,total soluble sugar,and total free amino acid,respectively.However,foliar P application minimized the negative impact of drought by improving plant growth,physio-biochemical attributes,and PUE in maize plants under water stress conditions.Among the hybrids tested,the hybrid 6525 performed better both under stress and non-stress conditions.These outcomes confirmed that the exogenous application of P improved drought stress tolerance by modulating growth,physio-biochemical attributes,and PUE of maize hybrids.展开更多
Laser-induced breakdown spectroscopy(LIBS) is a sensitive optical technique that is capable of rapid multi-elemental analysis. The development of this technique for elemental analysis of pharmaceutical products may ev...Laser-induced breakdown spectroscopy(LIBS) is a sensitive optical technique that is capable of rapid multi-elemental analysis. The development of this technique for elemental analysis of pharmaceutical products may eventually revolutionize the field of human health. Under normal circumstances, the elemental analysis of pharmaceutical products based on chemical methods is time-consuming and complicated. In this investigation, the principal aim is to develop an LIBS-based methodology for elemental analysis of pharmaceutical products. This LIBS technique was utilized for qualitative as well as quantitative analysis of the elements present in Ca-based tablets. All the elements present in the tablets were detected and their percentage compositions were verified in a single shot, using the proposed instrument. These elements(e.g., Ca, Mg, Fe, Zn, and others) were identified by the wavelengths of their spectral lines, which were verified using the NIST database. The approximate amount of each element was determined based on their observed peaks and the result was in exact agreement with the content specification. The determination of the composition of prescription drug for patients is highly important in numerous circumstances. For example, the exploitation of LIBS may facilitate elemental decomposition of medicines to determine the accuracy of the stated composition information. Moreover, the approach can provide element-specific, meaningful, and accurate information related to pharmaceutical products.展开更多
The 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon(HC)trapping in the subsurface.Conventionally used subsurface seismic characterization methods f...The 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon(HC)trapping in the subsurface.Conventionally used subsurface seismic characterization methods for fractures are based on the theory of effective anisotropy medium.The aim of this work is to improve the structural images with dense sampling of 3-D survey to evaluate structural and stratigraphic models for reservoir development to predict reservoir quality.The present study of the Gullfaks Field,located in the Norwegian North Sea Gullfaks sector,identifies the shallowest structural elements.The steepness of westward structural dip decreases eastward during the Upper Jurassic to Lower Cretaceous deposition.Reservoir sands consist of the Middle Jurassic deltaic deposits and Lower Jurassic fluvial channel and delta plain deposits.Sediment supply steadily prevails on sea-level rise and the succession displays a regressive trend indicated by a good continuous stacking pattern.The key factor for the development of reservoirs in the Gullfaks Field is fault transmissibility with spatially distributed pressure.The majority of mapped faults with sand-to-sand contacts are non-sealing,which provide restriction for the HC flow between the fault blocks.The traps for HC accumulation occur between the post-rift and syn-rift strata,i.e.antiform set by extensional system,unconformity trap at the top of syndeposition,and structural trap due to normal faults.Overall reservoir quality in the studied area is generally excellent with average 35%porosity and permeability in the Darcy range.Our findings are useful to better understand the development of siliciclastic reservoirs in similar geological settings worldwide.展开更多
Induction motors have been widely used across industry,particularly with smaller loads and fixed speed services.Existing works focus on fault detection of induction motors without considering the shutdown time and pro...Induction motors have been widely used across industry,particularly with smaller loads and fixed speed services.Existing works focus on fault detection of induction motors without considering the shutdown time and production in industry.Therefore,this work aims to monitor the health conditions of the induction motor continuously through electrical signature analysis(ESA).The proposed technique is capable of predicting different kinds of faults,i.e.,rotor faults,stator phase imbalances,and supply cable faults at early stages.Moreover,ESA in real time is implemented.Thereafter,these current spectra were analyzed in frequency domain and compared with healthy current spectra.Performance evaluation is implemented by observing these spectra under different faulty conditions.A comparative study is made and analyzed through MATLAB simulations.展开更多
基金the National Natural Science Foundation of China(Grant No.32200015)the Foundation of Guangzhou Municipal Science and Technology Bureau(Grant No.2023A04J1425)+46 种基金the Foundation of Guangzhou Municipal Science and Technology Bureau(Grant No.2023A04J1426)the National Research Council of Thailand(NRCT)Grant“Total fungal diversity in a given forest area with implications towards species numbers,chemical diversity and biotechnology”(Grant No.N42A650547)the Mushroom Research Foundation,Thailand for funding this workthe Distinguished Scientist Fellowship Program(DSFP),King Saud University,Kingdom of Saudi Arabia.Huang Zhang thanks the National Natural Science Foundation of Shandong(Project ID ZR2022MC071 to Huang Zhang)Taishan Scholar Foundation of Shandong Province(tsqn202306276)supported by the Sichuan Science and Technology Program of China(No.2022NSFSC1011)the Scientific and Technical Research Council of Türkiye(TUBİTAK)for the 2219 International Postdoctoral Research Fellowship Programme(Grant No.1059B192202880)the National Science,Research and Innovation Fund:Thailand Science Research Innovation(Basic Research Fund 2021,2022 and 2023)“Biodiversity,taxonomy,phylogeny and evolution of Colletotrichum on avocado,citrus,durian and mango in northern Thailand”,Grant No.652A01003“Biodiversity,taxonomy and phylogeny of Colletotrichum on Citrus and Mango in Northern Thailand”,Grant No.662A01002 and 672A010002the National Natural Science Foundation of China(No.32060012)SERB(CRG/2020/006053),DST,New DelhiInstitution of Eminence(R/Dev./D/IoE/Incentive/2021-22/32387)BHU,Varanasi and Bridge Grant(No.SRICC/Bridge Grant/2024-25/3151),BHU,Varanasi for providing the financial supportsfinancially supported by the“Iranian Mycological Society”the National Natural Science Foundation of China(32260004)the Yunnan Revitalization Talents Support Plan(High-End Foreign Experts Program)Yunnan Provincial Department of Science and Technology“Zhihui Yunnan”Plan(202403AM140023)the Key Laboratory of Yunnan Provincial Department of Education of the Deep-Time Evolution on Biodiversity from the Origin of the Pearl River for their supportthe International Research Support Initiative Program(IRSIP)Schemegrateful to JSPS for an Award of a Postdoctoral Fellowship and the Research Grants No.185701000001 and No.18-06620Extramural Research-SERB,DST(EMR/2016/003078),Government of India for the financial assistancegrateful to‘The PCCF’of Tamil Nadu Forest Department for providing permission(E2/20458/2017),assistance and support during field visit in Eastern Ghats of Tamil NaduRUSA 2.0(Theme-1,Group-1/2021/49)for providing GrantTamil Nadu State Council for Higher Education,Chennai(RGP/2019-20/MU/HECP-0040)for financial assistanceCSIR,New Delhi,India(09/0115(13300)/2022-EMR-I)for the financial assistancethe Beijing Natural Science Foundation-International Scientist Project(Project Number 1S24085)for the financial supportgrateful to DST-PURSE Programme PhaseⅡ,University of Calcutta,India for financial supportChiang Mai University for providing financial support and laboratory facilitiesgrateful to the UP System Balik PhD Program(OVPAA-BPhD2022-02)Grant entitled“Unraveling the hidden diversity of aquatic fungi from Panay Island,Philippines”Govt.of India for financial assistance(BT/PR29521/FCB/125/15/2018)financial support provided by DGAPA-PAPIIT,UNAM(Grant Number IN203524)the Department of Science and Technology,Govt.of India for the Award of the JC Bose Fellowship(Grant No.JCB/2017/000053),DBT-BUILDER(BT/INF/22/SP41176/2020)grant to School of life Sciences,Ministry of EducationGovt.of India and Institution of Excellence Directorate,University of Hyderabad for the award of the Project(Grant No.UOH-IOE-RC3-21-065)and Fellowship(RA)to PVSRN Sarmathe IOE-PDRF(UOH/IOE/SEST/PDRF/1)Grant from University of Hyderabadthe Yunnan Provincial Department of Science and Technology“Zhihui Yunnan”Plan(202403AM140023)the High-Level Talent Recruitment Plan of Yunnan Provinces(High-End Foreign Experts Programs and“Young Talents”)the National Natural Science Foundation of China(No.32460002)the Meemann Chang Academician Workstation in Yunnan Province(202225AF150002)Yunnan Province Young and Middle-aged Academic and Technical Leaders Reserve Talents Program(202305AC350252)Fundacao Arthur Bernardes(FUNARBE)for financial support.the CMU Proactive Researcher,Chiang Mai University(Grant Numbers 796/2567 and EX010059)the Doi Tung Development Project for Sample Collection(Permission Number 7700/17142 with the title‘The diversity of saprobic fungi on selected hosts in forest northern Thailand’),Chiang Rai,ThailandChiang Mai University for partially supportthe support from the Agency of Innovative Development under the Ministry of Higher Education,Science and Innovation of the Republic of Uzbekistan(Project No.AL-8724052922)the National Key R&D Program of China(Project No.2025YFE0104500)The Slovak Grant Agency VEGA(grant No.1/0295/20)for financial supportfinancial support from the Institute of Botany,Jagiellonian University,scientific funds(N18/DBS/000002)financial support by the statutory funds of the W.Szafer Institute of Botany,Polish Academy of Sciences.
文摘This article is the 19th contribution to the fungal diversity notes series,in which 106 taxa distributed in 3 phyla,11 classes,35 orders,and 64 families are treated.Taxa described in the present study include a new family,5 new genera,69 new species,3 new combinations,25 new host,habitat,and geographical records,a new name,a new collection,as well as reinstating a previously suppressed genus.The newly established family is Parasporidesmiaceae and the five new genera described herein are Dematiodidymosporum,Neoacrogenospora,Parasporidesmium,Speluncomyces,and Uniomyces.The 69 new species are Acrocalymma triseptatum,Agaricus darjeelingensis,Annellophorella aquatica,Anteaglonium menghaiense,Balsamia microspora,Bambusicola dehongensis,Barriopsis menglaense,Benjaminiomyces bergonzoi,Camporesiomyces aquaticus,Camporesiomyces wurfbainiae,Cercospora palmata,Chrysomphalina cantharella,Colletotrichum heteropanacicola,Conioscypha guizhouensis,Conioscypha yadongensis,Cora dalfornoae,Cylindromonium brasiliense,Dematiodidymosporum aquaticum,Distoseptispora dinghuensis,Distoseptispora zunyiensis,Ebollia neocarnea,Eudimeromyces aequatorialis,Eudimeromyces euconni,Funalia indica,Fuscosporella ovalis,Fuscosporella yunnanensis,Halobasidium csapodyae,Halokirschsteiniothelia hunanensis,Hongkongmyces xishuangbannaensis,Inocybe ispartaensis,Laboulbenia neofrancoisiana,Lachnella kunmingensis,Lasmenia thailandica,Leptospora cannabini,Lycoperdon sridharii,Myxospora neomasonii,Natipusilla aquatica,Neoacrogenospora aquatica,Neomassaria sinensis,Neovaginatispora juglandis,Niesslia yunnanensis,Ophiocordyceps aseptatospora,Oxneriaria sheosarensis,Paramicrosphaeropsis vitis,Paramyrothecium strychni,Parapaucispora aquatica,Parasporidesmium aquaticum,Parmelia neosaxatilis,Periconia bambusicola,Periconia neohongheensis,Peroneutypa thailandica,Polyozellus albus,Porina magnoliae,Porostereum subspadiceum,Pseudosperma subvolvatum,Pseudothyridariella caseariae,Rhexocercosporidium ferulae,Russula rubroglutinata,Septoriella iranica,Seriascoma asexuale,Sesquicillium flavum,Sirastachys zhongkaiensis,Speluncomyces lunatus,Sporidesmiella yunnanensis,Striaticonidium xishuangbannaensis,Trametopsis indica,Tulostoma hyderabadensis,Uniomyces hakkeijimanus,and Virgaria guizhouensis.The three new combinations are Lycoperdon alpinum,Lycoperdon lloydii,and Lycoperdon macrogemmae.The 25 new records comprise Acremonium sclerotigenum,Agroathelia rolfsii,Alfaria terrestris,Aspergillus cejpii,Colletotrichum brevisporum,Coriolopsis brunneoleuca,Coriolopsis hainanensis,Cytospora tamaricicola,Fomitopsis malicola,Fulvifomes fastuosus,Fulvifomes thailandicus,Funalia cystidiata,Funalia subgallica,Longididymella vitalbae,Lopharia mirabilis,Metarhizium viridulum,Neopestalotiopsis haikouensis,Occultibambusa aquatica,Phaeoacremonium scolyti,Phaeocytostroma virdimurae,Puccinia mysuruensis,Rhizopus stolonifer,Serpula similis,Trametes ellipsospora,and Vamsapriya shiwandashanensis.In addition,the new name is Irpiciporus pseudoxuchilensis,and the new collection is Aspergillus sydowii.The previously suppressed genus Eudimeromyces has been taxonomically reinstated.
基金funded by the Ministry of Science and Technology,Taiwan,under grant number MOST 114-2224-E-A49-002was received by En-Cheng Liou.
文摘Indoor localization is a fundamental requirement for future 6G Intelligent Sensing and Communication(ISAC)systems,enabling precise navigation in environments where Global Positioning System(GPS)signals are unavailable.Existing methods,such as map-based navigation or site-specific fingerprinting,often require intensive data collection and lack generalization capability across different buildings,thereby limiting scalability.This study proposes a cross-site,map-free indoor localization framework that uses low-frequency sub-1 GHz radio signals and a Transformer-based neural network for robust positioning without prior environmental knowledge.The Transformer’s self-attention mechanisms allow it to capture spatial correlations among anchor nodes,facilitating accurate localization in unseen environments.Evaluation across two validation sites demonstrates the framework’s effectiveness.In crosssite testing(Site-A),the Transformer achieved a mean localization error of 9.44 m,outperforming the Deep Neural Network(DNN)(10.76 m)and Convolutional Neural Network(CNN)(12.02 m)baselines.In a real-time deployment(Site-B)spanning three floors,the Transformer maintained an overall mean error of 9.81 m,compared with 13.45 m for DNN,12.88 m for CNN,and 53.08 m for conventional trilateration.For vertical positioning,the Transformer delivered a mean error of 4.52 m,exceeding the performance of DNN(4.59 m),CNN(4.87 m),and trilateration(>45 m).The results confirm that the Transformer-based framework generalizes across heterogeneous indoor environments without requiring site-specific calibration,providing stable,sub-12 m horizontal accuracy and reliable vertical estimation.This capability makes the framework suitable for real-time applications in smart buildings,emergency response,and autonomous systems.By utilizing multipath reflections as an informative structure rather than treating them as noise,this work advances artificial intelligence(AI)-native indoor localization as a scalable and efficient component of future 6G ISAC networks.
文摘BACKGROUND Persistent sinus tachycardia affects up to 40%of patients after heart transplantation and is linked with graft dysfunction,impaired diastolic filling,and increased morbidity.Conventional rate-limiting therapies such as betablockers and calcium channel blockers are quite often contraindicated due to risks of bradyarrhythmia or hypotension.Ivabradine,a selective I(f)channel inhibitor,reduces heart rate(HR)without negative inotropic or hypotensive effects.AIM To evaluate the efficacy and safety of ivabradine in heart transplant recipients.METHODS A comprehensive search of PubMed,EMBASE,Scopus,Cochrane Library,and Google Scholar was conducted from inception to April 15,2025.Eligible studies evaluated ivabradine in heart transplant recipient vs placebo or metoprolol,reporting HR,mortality,left ventricular mass(LVM),or safety.Data were independently extracted by two reviewers,and quality was assessed.Review Manager 5.4 performed pooled analyses using random-effects models.Mean differences(MD)or standardized MD(SMD)were calculated for continuous outcomes,and risk ratios for dichotomous outcomes.RESULTS Of 415 records identified,four studies comprising 264 patients(126 ivabradine,138 control)met the inclusion criteria.Ivabradine significantly reduced resting HR compared with controls(MD=-11.06 beats per minute;95%CI:-19.50 to-2.62;P<0.00001;I^(2)=93%).Sensitivity analysis demonstrated consistent findings(SMD=-6.74;95%CI:-9.23 to-4.24;I^(2)=0%).No significant difference in all-cause mortality was observed(MD=0.52;95%CI:0.17-1.64;P=0.27;I^(2)=85%).Pooled analysis of LVM revealed no significant effect of ivabradine(MD=-3.57 g;95%CI:-29.21 to 22.08;P=0.79;I^(2)=73%),with sensitivity analysis confirming neutrality.Adverse events were rare and mostly comparable between groups.CONCLUSION Ivabradine reduces HR effectively in heart transplant recipients without added adverse outcomes,supporting its use as safe and well-tolerated alternative when conventional agents are unsuitable.Despite potential clinical benefit,small sample size and heterogeneity the need for larger randomized trials to confirm long-term outcomes and establish ivabradine’s role in post-transplant care.
文摘Natural resources,green energy,and sustainable development are closely linked with concepts that carry mutual goals to endorse social equity,economic prosperity,and ecological stability while curtailing the harmful influence on the globe.However,the recognition of the Sustainable Development Goals(SDG-7,SDG-13)is closely entangled with digital economy.In this pursuit,this study scrutinizes the effect of dig-italization,renewable energy,and natural resources on the ecological footprint in China from 1990Q1-2022Q4.The empirical analyses are carried out by employing the Quantile-on-Quantile regression,and cross-quantile and partial cross-quantile correlation approaches to inspect the tail dependence of model parameters.The empirical outcomes highlight how China’s environmental quality is influenced by exoge-nous variables,including digitalization index,renewable energy consumption,and natural resources.Digitalization has adverse impact on the ecological footprint in lower quantiles,while insignificant in higher quantiles.Moreover,a strong adverse association exists between ecological footprint and renew-able energy,which syndicate all the quantiles of renewable energy with linking over lower to middle quantiles and weak in higher quantiles of ecological footprint.Besides,the estimated analysis discloses nuanced dependencies across various quantiles.Similarly,it can be found that the strong negative effect of natural resources on ecological footprint in initial quantiles,moderate in middle quantiles,and less positive effect in higher quantiles.By explaining these dynamics,the current study offers valuable intu-itions designed at controlling China toward its dual-carbon target and encouraging the development of a sustainable digital and green economy and thereby,continuing towards achieving SDG-7,and SDG-13 objectives.
基金supported by grants from National Natural Science Foundation of China(32125038)National Key Research and Development Program of China(grant number 2023YFD1801100 and 2023YFD1800804)+1 种基金the Key Research and Development Program of the Xinjiang Uygur Autonomous Region(No.2024B02016)the 2115 Talent Development Program of China Agricultural University.
文摘Background Sustained lipolysis exacerbates subclinical ketosis(SCK)in dairy cows and is associated with inflammation and adipose tissue macrophage(ATM)infiltration.While ATM involvement in adipose homeostasis and inflammation in early lactation is recognized,a comprehensive exploration of ATM polarization phenotypes in SCK cows is lacking.This study aimed to characterize ATM polarization and its link to lipolysis and inflammation in SCK cows.Results Subcutaneous adipose tissue samples were obtained from dairy cows to analyze protein expression and gene profiles.Compared with healthy cows,SCK cows had higher serum BHBA and NEFA,smaller adipocytes,and increased expression of lipolytic enzymes(LIPE,ATGL),indicating enhanced lipolysis.Decreased levels of FASN,PPARγ,p-SMAD3,and TGFβsuggested impaired adipogenesis.Inflammatory markers(TNF-α,IFN-γ,TLR4,Caspase1)and NFκB signaling activity were elevated.ATM infiltration was supported by increased CD9,CD68,TREM2,and CXCL1 expression.Protein abundance of M1 polarization markers(iNOS,CD86 and CCL2)in ATMs were associated with greater levels of NOS2,IL1B,CD86 and CCL2 mRNA expression in SCK cows;fluorescence intensity of NOS2 and CD86 also was elevated,alongside a higher proportion of CD68+/CD86+immunopositive cells within adipose tissue.ELISA further quantified increased concentrations of IL-1β and CCL2.Conversely,the abundance of ATM M2 polarization markers,including CD206,IL-10,KLF4,and Arg1,at both the protein and mRNA levels demonstrated a decline.Meanwhile,the proportion of CD68+/CD206+immune response cells was relatively low in SCK cows.Conclusions Overall,the present study indicated an augmented macrophage presence within adipose tissue during subclinical ketosis,with a predominance of pro-inflammatory macrophages(M1 ATM).This observation suggested a vicious cycle wherein macrophage infiltration and pro-inflammatory polarization coincide with enhanced lipolysis and an amplified inflammatory cascade.
基金supported by National Natural Science Foundation of China(31420103911)
文摘Pakistan has a rich fauna of planthoppers but members of the family Meenoplidae have not been reported from this region.In this study Nisa atrovenosa of the family Meenoplidae is recorded for the first time from Khyber Pakhtunkhwa Province of Pakistan.A morphological description and illustrations are provided.
文摘The global significance of forest ecosystems requires precise determination of the amount of carbon stored in different forest ecosystems. Regular monitoring of forests can aid in designing efficient climate change control strategies at national and global scale specially in reducing emissions from deforestation and degradation strategies. This research is designed to focus on determining deforestation of study area from 2001 to 2011 using Remote Sensing (RS) and Geographic Information System (GIS) techniques. This research provided rate and amount of degradation of forests in the study area and was quite helpful in formulating a strategy to earn carbon credits consistently and, therefore, will help in the uplifting of the standards of local population.
基金financially supported by the Ministry of Science and Technology of China(Grant No.2018YFA0702100)the National Natural Science Foundation of China(Grant Nos.11874169,51972129)+3 种基金the National Key R&D Program of China(Grant No.2017YFE0120500)the Key Research and Development Program of Hubei(Grant No.2020BAB079)the South Xinjiang Innovation and Development Program of Key Industries of Xinjiang Production and Construction Corps(Grants No.2020DB002)the Hubei‘‘Chu-Tian Young Scholar”program.
文摘Clean energy and a sustainable environment are grand challenges that the world is facing which can be addressed by converting solar energy into transportable and storable fuels(chemical fuel).The main scientific and technological challenges for efficient solar energy conversion,energy storage,and environmental applications are the stability,durability,and performance of low-cost functional materials.Among different nanomaterials,perovskite type LaFeO_(3)has been extensively investigated as a photocatalyst due to its abundance,high stability,compositional and structural fexibility,high electrocatalytic activity,efficient sunlight absorption,and tunable band gap and band edges.Hence,it is urgent to write a comprehensive review to highlight the trend,challenges,and prospects of LaFeO_(3)in the field of photocatalytic solar energy conversion and environment purification.This critical review summarizes the history and basic principles of photocatalysis.Further,it reviews in detail the LaFeO_(3),applications,shortcomings,and activity enhancement strategies including the design of nanostructures,elemental doping,and heterojunctions construction such as Type-I,Type-II,Z-Type,and uncommon heterojunctions.Besides,the optical and electronic properties,charge carriers separation,electron transport phenomenon and alignment of the band gaps in LaFeO_(3)-based heterostructures are comprehensively discussed.
基金National Natural Science Foundation of China,Grant/Award Numbers:52027801,51631001National Key Research and Technology Program of China,Grant/Award Number:2017YFA0206301+1 种基金China-German Collaboration Project,Grant/Award Number:M-0199Natural Science Foundation of Beijing Municipality,Grant/Award Number:2191001。
文摘Sodium-ion batteries(SIBs)are potential candidates for the replacement of lithium-ion batteries to meet the increasing demands of electrical storage systems due to the low cost and high abundance of sodium.Sodium superionic conductor(NASICON)structured materials have attracted enormous interest in recent years as electrode materials for safer and long-term performance of SIBs for electric energy storage smart grids.These materials have a threedimensional robust framework,high redox potential,thermal stability,and a fast Na^(+)-ion diffusion mechanism.However,NASICON has low intrinsic electronic conductivity,which limits the electrochemical performance.This review describes the structural features of NASICONs to illustrate the ion storage mechanism and electrochemical performance of SIBs.Details of the NASICON crystal structure,the affiliated Na^(+)-ion diffusion mechanism,morphology,and electrochemical performance of these materials in sodiumion half-cells as well as full cells are described.In addition to the application as electrode materials,the use of NASICONs as solid electrolytes is also elaborated in solid-state SIBs.Based on these aspects,we have provided more perspectives in terms of the commercialization of SIBs and strategies to overcome the limitations of NASICONs.Hence,this review is expected to provide the researchers of energy storage with an in-depth understanding of NASICON materials with the knowledge of structural features,which will provide a new avenue on the practicality of SIBs.
文摘Sunflower (Helianthus annuus L.) has emerged as an economically important crop in Pakistan due to its significant share in vegetable oil production. The plant metabolic processes require protein to increase the vegetative, reproductive growth and yield of the crop. The protein is wholly dependent upon the amount of nitrogen fertilization available for plant use. A two-year field study was conducted in 2008 and 2009. The objective was to determine the effect of different nitrogen (N) levels (N1 = 0 kg·ha–1, N2 = 60 kg·ha–1, N3 = 120 kg·ha–1, N4 = 180 kg·ha–1 and N5 = 240 kg·ha–1) on three sunflower hybrids (Hysun-33, Hysun-38 and Poineer-64A93) in agro-climatic conditions of Gujranwala, a sub-humid region in the centre of the Punjab province of Pakistan. A randomized complete block design split plot experiment was set-up with cultivars in the main plots and N levels in the subplots. Results showed that Hysun-38 gave maximum TDM (15815 kg·ha–1) and maximum grain yield (3389 kg·ha–1), while minimum TDM (14640 kg·ha–1) and grain yield (3125 kg·ha–1) was observed in Hysun-33. Among different N rates evaluated, N4 gave maximum TDM (17890 kg·ha–1) and grain yield (3809 kg·ha–1) compared to the other N rates. The maximum oil content (46.2%) was observed in Hysun-38 without application of N fertilizer (N1), while the minimum oil content (40.6%) was observed from N5 treatment. In conclusion, the application of 180 kg·ha–1 N to Hysun-38 provided the best combination for good yield in sunflower crop under the prevailing sub-humid conditions of Pakistan.
基金Fundamental Research Foundation of Sinopec(X505015)
文摘In the current study simultaneous reactions of hydrodesulfurization(HDS) of dibenzothiophene(DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic(Co-Mo/Al2O3 and Ni-Mo/Al2O3) and tri-metallic(Pd-Co-Mo/Al2O3 and Pd-Ni-Mo/Al2O3) catalyst systems which were prepared by incipient impregnation method.In situ hydrogen utilization and low Pd loadings were the major targets of this study.For comparison purpose,catalytic activity was separately determined for both the methanol reforming and HDS of DBT reactions as well.Ni based catalysts were confirmed with better activity than Co ones for both the reactions with Pd promoted ones ranking at the top i.e.Pd-Ni-Mo/Al2O3 > Ni-Mo/Al2O3 > Pd-Co-Mo/Al2O3 > Co-Mo/Al2O3 where Pd-Ni-Mo/Al2O3 showed 91% DBT conversion at 380 ℃ and 12 h reaction time.Some of the selected organic additives on catalytic activity were tested for their effect toward HDS reaction which was unique with close relation to their chemical nature.Reaction products were quantitatively and qualitatively analyzed via HPLC and GC-MS techniques respectively which helped in elucidating reaction mechanism.
基金financially supported by the National Natural Science Foundation of China(Nos.51661145025,51972039,and 51803018)
文摘High-purity(99%)carbon nanocoils(CNCs)have been synthesized by using porousα-Fe2O3/SnO2 catalyst.The yield of CNCs reaches 9,098%after a 6 h growth.This value is much higher than the previously reported data,indicating that this method is promising to synthesize high-purity CNCs on a large scale.It is considered that an appropriate proportion of Fe and Sn,proper particle size distribution,and a loose-porous aggregate structure of the catalyst are the key points to the high-purity growth of CNCs.Benefiting from the high-purity preparation,a CNC Buckypaper was successfully prepared and the electrical,mechanical,and electrochemical properties were investigated comprehensively.Furthermore,as one of the practical applications,the CNC Buckypaper was successfully utilized as an efficient adsorbent for the removal of methylene blue dye from wastewater with an adsorption efficiency of 90.9%.This study provides a facile and economical route for preparing high-purity CNCs,which is suitable for large-quantity production.Furthermore,the fabrication of macroscopic CNC Buckypaper provides promising alternative of adsorbent or other practical applications.
基金partly supported by the Research Council of Norway through CLIMIT program (MCIL-CO_2 project, 215732)
文摘A membrane contactor using ionic liquids(ILs) as solvent for pre-combustion capture CO_2 at elevated temperature(303-393 K) and pressure(20 bar) has been studied using mathematic model in the present work. A comprehensive two-dimensional(2 D) mass-transfer model was developed based on finite element method. The effects of liquid properties, membrane configurations, as well as operation parameters on the CO_2 removal efficiency were systematically studied. The simulation results show that CO_2 can be effectively removed in this process. In addition, it is found that the liquid phase mass transfer dominated the overall mass transfer. Membranes with high porosity and small thickness could apparently reduce the membrane resistance and thus increase the separation efficiency. On the other hand, the membrane diameter and membrane length have a relatively small influence on separation performance within the operation range.
文摘Water is essential for the growth period of crops;however,water unavailability badly affects the growth and physiological attributes of crops,which considerably reduced the yield and yield components in crops.Therefore,a pot experiment was conducted to investigate the effect of foliar phosphorus(P)on morphological,gas exchange,biochemical traits,and phosphorus use efficiency(PUE)of maize(Zea mays L.)hybrids grown under normal as well as water deficit situations at the Department of Agronomy,University of Agriculture Faisalabad,Pakistan in 2014.Two different treatments(control and P@8 kg ha^(−1))and four hybrids(Hycorn,31P41,65625,and 32B33)of maize were tested by using a randomized complete block design(RCBD)with three replications.Results showed that the water stress caused a remarkable decline in total soluble protein(9.7%),photosynthetic rate(9.4%)and transpiration rate(13.4%),stomatal conductance(10.2%),and internal CO_(2)rate(20.4%)comparative to well-watered control.An increase of 37.1%,36.8%,and 24.5%were recorded for proline,total soluble sugar,and total free amino acid,respectively.However,foliar P application minimized the negative impact of drought by improving plant growth,physio-biochemical attributes,and PUE in maize plants under water stress conditions.Among the hybrids tested,the hybrid 6525 performed better both under stress and non-stress conditions.These outcomes confirmed that the exogenous application of P improved drought stress tolerance by modulating growth,physio-biochemical attributes,and PUE of maize hybrids.
文摘Laser-induced breakdown spectroscopy(LIBS) is a sensitive optical technique that is capable of rapid multi-elemental analysis. The development of this technique for elemental analysis of pharmaceutical products may eventually revolutionize the field of human health. Under normal circumstances, the elemental analysis of pharmaceutical products based on chemical methods is time-consuming and complicated. In this investigation, the principal aim is to develop an LIBS-based methodology for elemental analysis of pharmaceutical products. This LIBS technique was utilized for qualitative as well as quantitative analysis of the elements present in Ca-based tablets. All the elements present in the tablets were detected and their percentage compositions were verified in a single shot, using the proposed instrument. These elements(e.g., Ca, Mg, Fe, Zn, and others) were identified by the wavelengths of their spectral lines, which were verified using the NIST database. The approximate amount of each element was determined based on their observed peaks and the result was in exact agreement with the content specification. The determination of the composition of prescription drug for patients is highly important in numerous circumstances. For example, the exploitation of LIBS may facilitate elemental decomposition of medicines to determine the accuracy of the stated composition information. Moreover, the approach can provide element-specific, meaningful, and accurate information related to pharmaceutical products.
文摘The 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon(HC)trapping in the subsurface.Conventionally used subsurface seismic characterization methods for fractures are based on the theory of effective anisotropy medium.The aim of this work is to improve the structural images with dense sampling of 3-D survey to evaluate structural and stratigraphic models for reservoir development to predict reservoir quality.The present study of the Gullfaks Field,located in the Norwegian North Sea Gullfaks sector,identifies the shallowest structural elements.The steepness of westward structural dip decreases eastward during the Upper Jurassic to Lower Cretaceous deposition.Reservoir sands consist of the Middle Jurassic deltaic deposits and Lower Jurassic fluvial channel and delta plain deposits.Sediment supply steadily prevails on sea-level rise and the succession displays a regressive trend indicated by a good continuous stacking pattern.The key factor for the development of reservoirs in the Gullfaks Field is fault transmissibility with spatially distributed pressure.The majority of mapped faults with sand-to-sand contacts are non-sealing,which provide restriction for the HC flow between the fault blocks.The traps for HC accumulation occur between the post-rift and syn-rift strata,i.e.antiform set by extensional system,unconformity trap at the top of syndeposition,and structural trap due to normal faults.Overall reservoir quality in the studied area is generally excellent with average 35%porosity and permeability in the Darcy range.Our findings are useful to better understand the development of siliciclastic reservoirs in similar geological settings worldwide.
基金Fundamental Research Funds for the Central Universities,China(No.2232019D3-51)Shanghai Sailing Program,China(No.19YF1402100)。
文摘Induction motors have been widely used across industry,particularly with smaller loads and fixed speed services.Existing works focus on fault detection of induction motors without considering the shutdown time and production in industry.Therefore,this work aims to monitor the health conditions of the induction motor continuously through electrical signature analysis(ESA).The proposed technique is capable of predicting different kinds of faults,i.e.,rotor faults,stator phase imbalances,and supply cable faults at early stages.Moreover,ESA in real time is implemented.Thereafter,these current spectra were analyzed in frequency domain and compared with healthy current spectra.Performance evaluation is implemented by observing these spectra under different faulty conditions.A comparative study is made and analyzed through MATLAB simulations.
