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General multi-steps variable-coefficient formulation for computing quasi-periodic solutions with multiple base frequencies
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作者 Junqing Wu Ling Hong +1 位作者 Mingwu Li Jun Jiang 《Acta Mechanica Sinica》 2026年第1期260-275,共16页
Quasi-periodic solutions with multiple base frequencies exhibit the feature of 2π-periodicity with respect to each of the hyper-time variables.However,it remains a challenge work,due to the lack of effective solution... Quasi-periodic solutions with multiple base frequencies exhibit the feature of 2π-periodicity with respect to each of the hyper-time variables.However,it remains a challenge work,due to the lack of effective solution methods,to solve and track the quasi-periodic solutions with multiple base frequencies until now.In this work,a multi-steps variable-coefficient formulation is proposed,which provides a unified framework to enable either harmonic balance method or collocation method or finite difference method to solve quasi-periodic solutions with multiple base frequencies.For this purpose,a method of alternating U and S domain is also developed to efficiently evaluate the nonlinear force terms.Furthermore,a new robust phase condition is presented for all of the three methods to make them track the quasi-periodic solutions with prior unknown multiple base frequencies,while the stability of the quasi-periodic solutions is assessed by mean of Lyapunov exponents.The feasibility of the constructed methods under the above framework is verified by application to three nonlinear systems. 展开更多
关键词 Multi-steps variable-coefficient formulation Phase condition Harmonic balance method Finite difference method Collocation method
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Application of 3D printing technology in the treatment of bacterial inflammation:oral formulations,internal implants,and external dressings
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作者 Zanyan Gao Shiyu Gao +5 位作者 Maomei Xie Chen Chen Yongyuan Li Guangcheng Jia Rui Liu Haixia Wang 《Journal of Chinese Pharmaceutical Sciences》 2026年第1期16-37,共22页
As bacterial infections have emerged as the second leading cause of death worldwide,the urgent demand for novel and effective antibacterial therapies continues to escalate.In this context,three-dimensional(3D)printing... As bacterial infections have emerged as the second leading cause of death worldwide,the urgent demand for novel and effective antibacterial therapies continues to escalate.In this context,three-dimensional(3D)printing technology offers transformative potential for the design and fabrication of oral formulations,internal implants,and external dressings in the management of bacterial inflammation.Conventional oral antibacterial agents often suffer from limitations in drug release kinetics and gastrointestinal stability.Leveraging 3D printing enables precise control over drug release profiles,thereby enhancing both bioavailability and therapeutic efficacy.Moreover,the development of internal implants requires high levels of individual specificity and structural precision.Through patient-specific customization and the incorporation of appropriate antibacterial materials,3D printing allows the fabrication of implants tailored to individual clinical needs,ultimately increasing surgical success rates and minimizing postoperative infection risks.Additionally,3D-printed external dressings exhibit excellent antibacterial activity,accelerate wound healing,and facilitate patient recovery.This review summarizes the fabrication methods,key advantages,and therapeutic outcomes of 3D printing in oral delivery systems,implantable devices,and wound dressings.It further highlights recent advances and emerging trends,offering insights and strategic guidance for the rational design and application of antibacterial therapeutics. 展开更多
关键词 3D printing Antimicrobial drug delivery Oral formulations Internal implants External dressings
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High-efficiency γ-aminobutyric acid nano-formulation for turnip mosaic virus:excellent adhesion performance and amplified plant defensive responses 被引量:1
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作者 Chao Zhang Jingyi Chen +5 位作者 Yubo Wen Yichao Liu Xuan Li Shuo Yan Jianjun Zhao Jun Li 《Horticultural Plant Journal》 2025年第6期2285-2288,共4页
Chinese cabbage(Brassica rapa subsp.pekinensis)is a widely cultivated vegetable crop in Asia with significant economic importance(Li et al.,2024;Yu et al.,2024).As a potyvirus with the broad host range,turnip mosaic v... Chinese cabbage(Brassica rapa subsp.pekinensis)is a widely cultivated vegetable crop in Asia with significant economic importance(Li et al.,2024;Yu et al.,2024).As a potyvirus with the broad host range,turnip mosaic virus(TuMV)is a major pathogen affecting Chinese cabbages,leading to severe yield losses(Li et al.,2019).Traditional control measures have shown limited efficacy,and the long-term use of chemical pesticides has led to significant issues such as environmental pollution and pathogen resistance(Samara et al.,2021;Lu et al.,2022).Biologicallyderived pesticides have garnered considerable attention owing to their eco-friendly attributes(Ayilara et al.,2023).γ-Aminobutyric acid(GABA),initially discovered in potato tubers,has been proven to regulate immune responses and enhance resistance to fungal and bacterial pathogens by modulating reactive oxygen species and stress-related hormone signals(Tarkowski et al.,2020;Wang et al.,2025).But biologically-derived agents typically face challenges such as large particle size and instability,which limit their practical application and bioavailability(Daraban et al.,2023). 展开更多
关键词 turnip mosaic virus chemical pesticides mosaic virus tumv control measures aminobutyric acid environmental pollution high efficiency nano formulation
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Synthesis and microencapsulation of oleic acid sterol ester liquid crystals for its application in sunscreen formulations
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作者 Xuze Liu Chang Xu +1 位作者 Liangliang Lin Hujun Xu 《日用化学工业(中英文)》 北大核心 2025年第11期1408-1418,共11页
This study reports the synthesis of oleic acid sterol ester with liquid crystalline properties and its enhanced stability and UV-blocking performance through microencapsulation.Oleic acid sterol ester was synthesized ... This study reports the synthesis of oleic acid sterol ester with liquid crystalline properties and its enhanced stability and UV-blocking performance through microencapsulation.Oleic acid sterol ester was synthesized via the esterification of phytosterol and oleic acid,whose structure was characterized using Fourier-transform infrared spectroscopy(FTIR)and mass spectrometry(MS).Its liquid crystalline behavior was confirmed via the polarized optical microscopy(POM),thermogravimetric analysis(TGA),differential scanning calorimetry(DSC),wide-angle X-ray scattering(WAXS),and small-angle X-ray scattering(SAXS).UV absorption tests were conducted to assess the UV-blocking performance of the oleic acid sterol ester liquid crystals.To improve the stability of its liquid crystalline structure,the oleic acid sterol ester was encapsulated into microcapsules through the emulsion polymerization.SPF measurements were performed on the sunscreen formulations containing liquid crystal microcapsules.The oleic acid sterol ester displayed cholesteric liquid crystalline behavior and strong UVA absorption,which indicates its suitability as a natural UV absorber.Microencapsulation further enhanced its stability and UV-blocking properties.SPF testing showed that the formulations with microcapsules achieved an SPF value of 7.01,which surpasses the nano titanium dioxide(SPF=6.23)and significantly outperform the unencapsulated liquid crystal formulations(SPF=2.65).This study highlights the potential of microencapsulated oleic acid sterol ester as a novel UV absorber in the sunscreen formulations,offers the enhanced stability and effective UV protection,and showcases its application potential in the innovative cosmetic products. 展开更多
关键词 PHYTOSTEROL liquid crystals MICROENCAPSULATION UV absorption sunscreen formulations SPF testing
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Sensory Characterizations and Optimization of Cashew Apple Jam Formulations Using Baobab Powder as a Source of Pectin
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作者 Marie Bianoun Louise Dégni Doudjo Soro +3 位作者 Essan Bla Zita N’Goran-Aw Djedjro Clément Akmel Nogbou Emmanuel Assidjo Kouassi Benjamin Yao 《Food and Nutrition Sciences》 2025年第1期120-136,共17页
Cashew processing in Côte d’Ivoire focuses only on the cashew nut, to the detriment of the apple. Only a very small proportion of the apple is processed into juice. The aim of this work is to enhance the value o... Cashew processing in Côte d’Ivoire focuses only on the cashew nut, to the detriment of the apple. Only a very small proportion of the apple is processed into juice. The aim of this work is to enhance the value of cashew apples by transforming them into jam. Specifically, the aim was first to characterize the sensory properties of cashew apple jam formulations using baobab powder as a source of pectin and then to optimise the formulations. A Box-Behken design with pH, Sugar, and Baobab as factors was used to model and characterize the jam sensory descriptors, and a multivariate analysis with SensomineR was used to characterize the jam formulations. The desirability function was used to optimise the formulations. The results show globally significant regressions at the 0.05 threshold for the sensory descriptors Gelling, Brilliance, Smell, Sweetness, and (-)Astringency, with the exception of (-)Salinity. The R2 coefficients are greater than 80%. The factors studied could have effects on the sensory descriptors of cashew jam formulations. The Baobab had the main effect on the gelling, smell, and astringency of the jams. Brilliance depended on the added sugar. A product effect (p < 0.001) was observed for the descriptors Smell, Gelling, Brilliance, and Sweetness, as these allowed the panelists to find differences between the formulations. Optimum jam formulation can be achieved with 51.56% sugar and 2.12% Baobab at a pH of 3.15. Cashew apple jam using Baobab offers opportunities to add value to apples that have long been abandoned in the field. It would be important to find conditions for prolonged storage of this jam. 展开更多
关键词 Cashew Apple Sensory Characterization Jam formulation Area Design Product Effect Overall Desirability
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Shenzhuo formulation ameliorates diabetic nephropathy by regulating cytochrome P450-mediated arachidonic acid metabolism
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作者 Zhong-Yong Zhang Yu-Ming Wang +8 位作者 Ning Wang Yuan-Song Wang Hui Zhang Duo Wang Li-Xin Wang Huan-Tian Cui Wei-Bo Wen Shu-Quan Lv Yong-Jun Cao 《World Journal of Diabetes》 2025年第5期331-345,共15页
BACKGROUND Diabetic nephropathy(DN)is a major complication of diabetes,marked by progressive renal damage and an inflammatory response.Although research has investigated the pathological mechanisms underlying DN,effec... BACKGROUND Diabetic nephropathy(DN)is a major complication of diabetes,marked by progressive renal damage and an inflammatory response.Although research has investigated the pathological mechanisms underlying DN,effective treatment options remain limited.AIM To evaluate the therapeutic impact of Shenzhuo formulation(SZF)on a DN mouse model and to examine its potential molecular mechanisms using transcriptomic and metabolomic approaches.METHODS We established a DN mouse model through a high-fat diet combined with streptozotocin(STZ)injection,followed by SZF treatment.We analyzed SZF’s effects on gene expression and metabolite profiles in renal tissues of DN mice using transcriptomics and metabolomics techniques.Additionally,based on transcriptomic and non-targeted metabolomic findings,we further assessed SZF’s influence on the expression of factors related to the cytochrome P450(CYP450)-mediated arachidonic acid(AA)metabolism pathway,as well as its effects on inflammation and oxidative stress.RESULTS SZF intervention significantly decreased hyperglycemia and mitigated renal function impairment in DN mice.Pathological analysis revealed that SZF treatment improved renal tissue damage,reduced fibrosis,and diminished glycogen deposition.Transcriptomic analysis indicated that SZF influenced mRNA expression of CYP450-related genes,including Cyp2j13,Cyp2b9,Pla2 g2e/Cyp4a12a,Cyp4a32,Cyp2e1,and Cyp4a14.Non-targeted metabolomic results demonstrated that SZF altered the levels of metabolites associated with the AA metabolic pathway,including 5,6-EET,14,15-EET,phosphatidylcholine,and 20-HETE.Further experiments showed that SZF upregulated the expression of CYP4A and CYP2E proteins in renal tissue,as well as CYP2J and CYP2B proteins.Additionally,SZF significantly reduced the expression of inflammatory factors in renal tissue,enhanced antioxidant enzyme activity,and alleviated oxidative stress.CONCLUSION SZF exerts anti-inflammatory and antioxidant effects by regulating CYP450-mediated AA metabolism,leading to improved renal function and improved pathological state in DN mice. 展开更多
关键词 Diabetic nephropathy Shenzhuo formulation TRANSCRIPTOMIC METABOLOMIC Cytochrome P450 Arachidonic acid metabolic INFLAMMATORY Oxidative stress
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Formulation of a hydrating cream containing Echinacea extract as a preservative and antimicrobial agent
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作者 Zahra Mirzapour Zahra Zaregheshlaghi +1 位作者 Ebrahim Soleiman Dehkordi Modarres Dehghani 《Journal of Dermatologic Science and Cosmetic Technology》 2025年第4期52-59,共8页
Objective:The purpose of this article is to investigate the performance of Echinacea extract as a preservative and antimicrobial agent in a hydrating cream.Methods:The hydrating cream was prepared by mixing the oil an... Objective:The purpose of this article is to investigate the performance of Echinacea extract as a preservative and antimicrobial agent in a hydrating cream.Methods:The hydrating cream was prepared by mixing the oil and water phases at a temperature of 75±2℃.Then,physicochemical and microbial analyses were performed on the prepared cream using different devices.Results:For proper evaluation and a more detailed examination of the prepared cream,each experiment was performed three times(n≥3),and the average data are reported.The results of the prepared cream indicate that it has a high skin absorption capacity,and the Echinacea extract has given it antimicrobial properties.Other advantages of making this hydrating cream include high hydration to human skin,formulation stability,and a long-lasting effect without creating a two-phase state.Conclusion:Creams have been evaluated as a primary component of cosmetic products as topical preparations from time immemorial due to their ease of use and removal from the skin.In this article,we report the formulation of a hydrating cream using various ingredients.The results obtained from this article demonstrate that this extract can maintain its properties under accelerated stability conditions for 6 months.Also,the prepared cream can eliminate bacteria over 28 days in an effective antimicrobial preservative test. 展开更多
关键词 COSMETICS Hydrating cream Stability testing formulation development Echinacea extract Antimicrobial efficacy Natural preservative
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Study and Formulation of a Dietary Cold Sauce Based on Pumpkin Seed Oil and Quail Eggs
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作者 Koumba Hawa Toundoufedouno Kéloua Kourouma Adama Moussa Sakho 《Journal of Environmental Science and Engineering(B)》 2025年第1期36-45,共10页
This work focuses on the formulation of a dietary cold sauce,mayonnaise,which combines the therapeutic properties of two basic ingredients:PSO(Pumpkin Seed Oil)and quail egg,both of which are renowned for their high f... This work focuses on the formulation of a dietary cold sauce,mayonnaise,which combines the therapeutic properties of two basic ingredients:PSO(Pumpkin Seed Oil)and quail egg,both of which are renowned for their high functional properties.PSO is essentially made up of unsaturated fatty acids(50%to 65%)including linoleic acid,from the omega 6 family,oleic acid(20%to 50%),a monounsaturated fatty acid(omega 9),cucurbitin,phytosterols,tri-terpenes and vitamin E(3.5 mg%).The nutritional,fatty acid,vitamin and mineral compositions of the mayonnaise compared with the ingredients,the physico-chemical characteristics of the quail egg,the PSO and the tasting of the mayonnaise were determined and gave results in terms of variable contents which are recorded in Tables 2-8.The results obtained were satisfactory.Mayonnaise,a semi-solid emulsion of oil in water with viscoelastic properties due to the network formed by lipoproteins adsorbed around neighbouring drops of oil,was prepared using the ratio of quail egg and PSO 1/4.This study may offer an alternative way of making dietary sauces. 展开更多
关键词 Nutritional study food formulation dietary sauce PSO quail eggs
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The 2025 China New-Formulation Detergent Products Development Conference & The 2025 China Daily Chemicals Forum on Biodegradable,Recyclable and Renewable Technologies Successfully Concluded
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作者 The editorial office 《China Detergent & Cosmetics》 2025年第4期89-90,共2页
The“2025 China New-Formulation Detergent Products Development Conference & 2025 China Daily Chemicals Biodegradable,Recyclable,Renewable Technology Innovation Summit”,cohosted by the China Research Institute of ... The“2025 China New-Formulation Detergent Products Development Conference & 2025 China Daily Chemicals Biodegradable,Recyclable,Renewable Technology Innovation Summit”,cohosted by the China Research Institute of Daily Chemical(RIDCI),was held in Yangzhou,Jiangsu Province.The event brought together over 230 representatives from government agencies,industry associations,and leading enterprises to contribute insights for the high-quality development of China's daily chemical industry. 展开更多
关键词 biodegradable technologies daily chemicals industry recyclable technologies CONFERENCE renewable technologies summit new formulation detergent products high quality development
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Identification of bioactive compounds and molecular targets of Fuke Huahuang formulation to treat vaginitis
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作者 Huiyu Liu Jie Mo +3 位作者 Cheng Liang Qingting Chen Bin Yang Jiaqi Liu 《Animal Models and Experimental Medicine》 2025年第6期1095-1104,共10页
Background:Fuke Huahuang formulation(FHF)is widely used in the treatment of vaginitis,with clinical evidence indicating its promising anti-inflammatory properties.Methods:We explored the bioactive components and poten... Background:Fuke Huahuang formulation(FHF)is widely used in the treatment of vaginitis,with clinical evidence indicating its promising anti-inflammatory properties.Methods:We explored the bioactive components and potential mechanisms of FHF for treating vaginitis,and reveal its pharmacological activities against vaginitis.Results:A total of 12 anti-inflammatory components in FHF and 584 pharmacological targets were identified.Furthermore,1427 vaginitis-associated targets were identified,and 184 intersection targets between FHF and vaginitis were constructed for network analysis.Gene Ontology and pathway analysis revealed that the therapeutical targets of FHF against vaginitis are involved in modulating inflammatory stress,enhancing immunoregulation,reconstructing the microenvironment,and suppressing cell damage.Molecular docking analysis further suggested the possible direct binding of the bioactive compounds of FHF(fumarine)to the core targets,including AKT Serine/Threonine Kinase 1(AKT1),Signal Transducer and Activator of Transcription 3(STAT3),and nuclear factor-kappaB(NF-κB).Experimental validation found that FHF-treated vaginitis rats exhibited reduced intracellular AKT1,STAT3,and NF-κB protein expressions.Conclusion:Overall,we identified the bioactive compounds and pharmacological mechanisms of FHF against vaginitis,thus offering a theoretical fundament for exploring FHF for treating vaginitis in the future. 展开更多
关键词 biological validation biotargets Fuke Huahuang formulation MECHANISM VAGINITIS
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Phytoconstituents,mechanisms,and delivery systems in polyherbal formulations for anti-aging skincare:A comprehensive review
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作者 Mohammad Shavez Anurag Verma Gulshan Rathore 《Journal of Dermatologic Science and Cosmetic Technology》 2025年第4期19-29,共11页
Skin aging is a complicated process affected by extrinsic factors such as ultraviolet(UV)radiation and environmental pollutants,in addition to intrinsic factors such as oxidative stress and cellular senescence.These f... Skin aging is a complicated process affected by extrinsic factors such as ultraviolet(UV)radiation and environmental pollutants,in addition to intrinsic factors such as oxidative stress and cellular senescence.These factors initiate inflammation,collagen breakdown,and visible signs of aging.Polyherbal formulation with multiple plant extracts with synergistic bioactive compounds offers a sustainable and scientifically proven way of modulating the interrelated pathways that contribute to skin aging.This comprehensive review features 7 key anti-aging plants,including Curcuma longa,Curcuma aromatica,Glycyrrhiza glabra,Calendula officinalis,Boehavia diffusa,Withania somnifera,and Matricaria chamomilla,and discusses their active phytoconstituents such as curcumin,glabridin,withanolides,and apigenin.These agents improve the hydration of skin,increase collagen synthesis,inhibit matrix metalloproteinases(MMPs),and modulate oxidative stress.This review emphasizes the opportunity to combine some of the most sophisticated dermal delivery methods(e.g.,liposome,ethosome,and emulgel technologies)with traditional ethnobotanical knowledge to increase bioavailability and efficacy of herbal actives.All research indicates that polyherbal formulations offer a multi-targeted,sustainable,and therapeutically viable alternative to synthetic anti-aging pharmaceuticals,bridging traditional knowledge and contemporary cosmeceutical techniques. 展开更多
关键词 ANTI-AGING Polyherbal formulation COSMECEUTICALS Oxidative stress Synergistic effect
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A two-field mixed formulation with scattered pressure node distribution in element-free Galerkin method for alleviating volumetric locking in hyperelastic materials
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作者 S.Sai Kumar Albert Shaji Nelson Muthu 《Acta Mechanica Sinica》 2025年第10期115-131,共17页
Rubber-like materials that are commonly used in structural applications are modelled using hyperelastic material models.Most of the hyperelastic materials are nearly incompressible,which poses challenges,i.e.,volumetr... Rubber-like materials that are commonly used in structural applications are modelled using hyperelastic material models.Most of the hyperelastic materials are nearly incompressible,which poses challenges,i.e.,volumetric locking during numerical modelling.There exist many formulations in the context of the finite element method,among which the mixed displacementpressure formulation is robust.However,such a displacement-pressure formulation is less explored in meshfree methods,which mitigates the problem associated with mesh distortion during large deformation.This work addresses this issue of alleviating volumetric locking in the element-free Galerkin method(EFGM),which is one of the popular meshfree methods.A two-field mixed variational formulation using the perturbed Lagrangian approach within the EFGM framework is proposed for modelling nearly incompressible hyperelastic material models,such as Neo-Hookean and Mooney-Rivlin.Taking advantage of the meshless nature of the EFGM,this work introduces a unique approach by randomly distributing pressure nodes across the geometry,following specific guidelines.A wide spectrum of problems involving bending,tension,compression,and contact is solved using two approaches of the proposed displacement-pressure node formulation involving regular and irregular pressure node distribution.It is observed that both approaches give accurate results compared to the reference results,though the latter offers flexibility in the pressure nodal distribution. 展开更多
关键词 Volumetric locking Mixed displacement-pressure formulation EFG method Irregular pressure node distribution Hyperelastic materials
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Inhalable formulations in pharmacy:from basic research to clinical applications
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作者 Yuying Yan Xuebin Yang Zhaoshuai Ji 《Journal of Chinese Pharmaceutical Sciences》 2025年第6期503-518,共16页
In recent years,the rising prevalence of respiratory diseases,coupled with advancements in biotechnology and pharmacology,has positioned inhalable formulations as a preferred method of drug administration.This approac... In recent years,the rising prevalence of respiratory diseases,coupled with advancements in biotechnology and pharmacology,has positioned inhalable formulations as a preferred method of drug administration.This approach enables direct and rapid delivery of medication to the lungs,maximizing therapeutic effects while minimizing dosage and potential side effects.In this review,we meticulously examined current literature and clinical trial databases to present a comprehensive overview of three key areas:(1)inhalation devices currently utilized in clinical settings;(2)the clinical applications of approved inhalable formulations;and(3)preclinical research on inhalable treatments targeting various lung conditions,including pulmonary infections,tuberculosis,lung cancer,pulmonary fibrosis,as well as systemic diseases like Parkinson’s disease.The objective was to delve into both foundational research and the clinical use of inhalable formulations within the pharmaceutical field,with the aim of fostering their broader adoption and guiding the development of inhalable therapies for a more comprehensive range of diseases. 展开更多
关键词 Inhalable formulations Inhalation device Inhaled vaccine Pulmonary infection Inhalable nanomedicine
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自拟黄精降压汤联合苯磺酸氨氯地平片治疗气虚型高血压病临床疗效观察
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作者 史雯 何晋涛 +4 位作者 马海娟 董蕾 刘瑶 赵会灵 邢远 《中华中医药杂志》 北大核心 2026年第1期352-356,共5页
目的:观察自拟黄精降压汤联合苯磺酸氨氯地平片治疗气虚型高血压病临床疗效。方法:选择2022年5月—2023年11月于北京市第六医院门诊收治的96例原发性高血压患者,中医辨证为气虚证,按照随机数表分为对照组和观察组,每组48例,对照组患者... 目的:观察自拟黄精降压汤联合苯磺酸氨氯地平片治疗气虚型高血压病临床疗效。方法:选择2022年5月—2023年11月于北京市第六医院门诊收治的96例原发性高血压患者,中医辨证为气虚证,按照随机数表分为对照组和观察组,每组48例,对照组患者给予苯磺酸氨氯地平片对症治疗,观察组患者在对照组的基础上给予自拟黄精降压汤口服,连续治疗8周。比较两组诊室血压、家庭血压、24 h动态血压、中医证候评分以及实验室检查、广泛性焦虑量表(GAD-7)评分及匹兹堡睡眠质量指数(PSQI)量表评分变化。结果:与治疗前比较,观察组治疗后眩晕、头痛、气短、乏力、神疲、自汗、懒言评分及中医证候总积分显著下降(P<0.01,P<0.05);诊室及家庭血压SBP、DBP显著下降(P<0.01),动态血压白昼、夜间及全天SBP、DBP均显著下降(P<0.01,P<0.05);GAD-7评分下降(P<0.05)、PSQI评分显著下降(P<0.01)、Hcy较前下降(P<0.01)。治疗后,观察组中医证候积分显著低于对照组(P<0.01)、症候疗效率显著高于对照组(P<0.01);诊室及家庭血压SBP、DBP显著低于对照组(P<0.01,P<0.05),动态血压白昼、夜间及全天SBP、DBP低于对照组(P<0.01,P<0.05)。治疗过程中未见恶心、呕吐等不良反应,对肝肾功能均无影响。结论:自拟黄精降压汤对于气虚型高血压有较好的治疗效果,同时可以有效缓解焦虑、改善睡眠质量,用药安全,值得临床推广。 展开更多
关键词 气虚 高血压病 自拟黄精降压汤 临床疗效
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不同基质配方对咖啡沙床苗移栽生长的影响
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作者 石兰蓉 陆祖正 +5 位作者 宁诗琪 覃剑峰 宾振钧 任二芳 郝小玲 陈赶林 《农业研究与应用》 2026年第1期118-127,共10页
【目的】咖啡是一种重要的热带亚热带经济作物,以单一土壤作为育苗基质的传统育苗方式普遍存在容重大、易板结、通气透水性差等问题,不利于咖啡幼苗生长。本研究旨在探究不同基质配方对咖啡沙床苗移栽生长质量的影响,以期筛选出最佳的... 【目的】咖啡是一种重要的热带亚热带经济作物,以单一土壤作为育苗基质的传统育苗方式普遍存在容重大、易板结、通气透水性差等问题,不利于咖啡幼苗生长。本研究旨在探究不同基质配方对咖啡沙床苗移栽生长质量的影响,以期筛选出最佳的咖啡育苗基质配方,为生产上培养高质量咖啡种苗提供参考依据。【方法】以小粒种咖啡763为研究对象,选用普通壤土、椰糠、蛭石、河沙及商用泥炭土为原料按不同体积比例配制成8种复合育苗基质配方:CK(普通壤土);D1(壤土∶泥炭土=1∶1);D2(壤土∶泥炭土=2∶1);D3(壤土∶泥炭土=3∶1);D4(壤土∶河沙=2∶1);D5(壤土∶泥炭土∶蛭石=3∶1∶1);D6(壤土∶泥炭土∶河沙=2∶1∶1);D7(壤土∶椰糠∶泥炭土=3∶1∶1)。分别于移栽后30 d、90 d、180 d测定袋苗的株高、茎粗、叶长、叶宽、生物量等生长指标。【结果】在壤土中单独添加泥炭土或复合添加泥炭土、椰糠、蛭石及河沙均可改善基质的物理性质,其中以D1、D2、D3及D5的效果最好,容重为0.699~0.924 g/cm^(3),总孔隙度为65.13%~73.62%。复合基质配方对咖啡幼苗株高、茎粗、叶长、叶宽、生物量等形态指标影响显著。与单独使用壤土(CK)相比,咖啡幼苗在D1、D2、D3中,株高、茎粗、叶片大小等生长指标均处于最高水平,但地下部生长较差(根冠比较低,0.24~0.32);D4种植的幼苗长势最差,移栽前期其生长受到严重抑制;在D4中增加与河沙等体积的泥炭土(D6)明显改善基质的物理结构,促进袋苗后期生长;D5种植的咖啡幼苗地上部鲜质量(36.59 g)、地下部干质量(3.56 g)、叶绿素含量(57.69 mg/g·FW)以及壮苗指数(6.8)均为最高,在株高、茎粗及叶片大小等生长指标上均表现突出,根冠比适中(0.4)。【结论】综合评价各项指标得出,由壤土∶泥炭土∶蛭石按3∶1∶1混合的基质配方(D5),可以促进咖啡沙床移栽苗的全面生长、实现地上部和地下部的均衡发育,培育出健壮的幼苗,可优先作为咖啡沙床苗移栽基质。 展开更多
关键词 咖啡 基质配方 沙床苗 移栽
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基于ANCF的端部位移激励诱发的架空线舞动特性研究
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作者 杨文刚 杨世龙 +3 位作者 刘岩 傅毓斐 程洋 牛雷 《振动与冲击》 北大核心 2026年第5期71-77,共7页
部分舞动故障线路导线覆冰横截面形状并非呈翼型,且沿线长呈不均匀分布,传统舞动机理难以解释这类舞动的形成原因。从参数振动的角度对这类导线舞动展开了研究,建立了端部位移激励诱发舞动模型,采用绝对节点坐标法(absolute nodal coord... 部分舞动故障线路导线覆冰横截面形状并非呈翼型,且沿线长呈不均匀分布,传统舞动机理难以解释这类舞动的形成原因。从参数振动的角度对这类导线舞动展开了研究,建立了端部位移激励诱发舞动模型,采用绝对节点坐标法(absolute nodal coordinate formulation,ANCF)建立了导线舞动动力学方程,分析了激励频率、阻尼、激励幅值对导线舞动的影响。算例分析表明:当等效位移激励频率接近导线一阶固有频率的1倍或2倍时,导线将发生大幅振动;一旦参数振动被激发,阻尼就不再能有效控制导线的振动;当激励幅值减小时,导线发生主共振和参数振动的频率比区间变窄;当激励幅值小于一定值时,导线不发生参数振动。 展开更多
关键词 绝对节点坐标法(ANCF) 架空导线 舞动 参数振动 位移激励
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基于ANCF法的高速铁路接触网接触悬挂系统找形研究
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作者 贾传果 谭牟 +3 位作者 赵进级 张智强 陈奋飞 杨佳 《振动与冲击》 北大核心 2026年第4期109-119,共11页
高速铁路接触网作为结构复杂的架空输电系统,在风荷载、地震作用、弓网耦合作用等情况下会产生动力响应,进行接触网接触悬挂系统的动力响应分析已经成为该领域研究的热点问题。接触悬挂系统的初始找形分析是接触网动力分析的基础,初始... 高速铁路接触网作为结构复杂的架空输电系统,在风荷载、地震作用、弓网耦合作用等情况下会产生动力响应,进行接触网接触悬挂系统的动力响应分析已经成为该领域研究的热点问题。接触悬挂系统的初始找形分析是接触网动力分析的基础,初始找形结果的准确性对动力分析至关重要。基于绝对节点坐标法(absolute nodal coordinate formulation,ANCF)和牛顿迭代法对悬链线悬挂系统进行找形研究。在研究过程中需先建立ANCF静力学平衡方程,并在此基础上确定牛顿迭代的基本方程和变量,而后通过单根索的找形结果验证此法的可靠性,最后分别对一跨标准模型与一个实际的多跨接触网接触悬挂系统进行找形研究,将二者吊弦长度的计算结果与欧洲标准EN 50318—2018中的参考数值进行对比计算后发现相对误差均不超过0.2%,验证了本找形方法的准确性和实用性。 展开更多
关键词 接触网 接触悬挂系统 绝对节点坐标法(ANCF) 找形
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中药产业专利技术发展现状的可视化分析
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作者 刘扬 甄思圆 +6 位作者 高曼 李彦文 张雨琪 赵芳华 朱玲 童元元 于忱忱 《中草药》 北大核心 2026年第1期223-235,共13页
目的基于智慧芽(Patsnap)数据库对2000—2024年我国中药产业专利技术发展概况进行可视化分析,揭示其演进规律与结构特征。方法通过多维度检索策略(标题/摘要、IPC分类、国民经济行业分类等),整合中药产业专利数据119485件,重点对中药材... 目的基于智慧芽(Patsnap)数据库对2000—2024年我国中药产业专利技术发展概况进行可视化分析,揭示其演进规律与结构特征。方法通过多维度检索策略(标题/摘要、IPC分类、国民经济行业分类等),整合中药产业专利数据119485件,重点对中药材、中药饮片、中成药及中药智能制造四大技术领域的申请趋势、地域分布、申请人类型、IPC分类及法律状态进行定量与可视化解析。结果2017年中药产业专利申请量达峰值11087件后回落,2020年后稳定于5000件/年,反映产业从规模扩张转向质量提升。山东、广东、江苏为创新高地,安徽依托亳州药材市场形成特色集群,呈现“东强西进”多极化分布。中成药领域专利占比最高,智能制造领域基数小但增速稳定;IPC分类以A61K36(植物来源制剂)、A61K9(剂型)等为主,聚焦消化、抗感染等疾病领域。高校主导高价值发明专利,企业申请量高但授权率不足20%;个人申请活跃但转化效率低。失效专利占比69.91%,主因创造性不足;中成药领域失效专利数量最多,但有效专利占比相对较高。结论中药专利呈现“数量优势显著、质量结构失衡、国际竞争力薄弱”的特征,中成药创新集中于工艺优化,忽视临床价值验证;建议建立“质量-转化-国际化”协同机制,强化道地药材DNA条形码、纳米制剂等前沿技术布局,推动中药专利从“规模扩张”向“价值创造”转型。 展开更多
关键词 中药产业 智慧芽 专利分析 可视化 DNA条形码 纳米制剂 “质量-转化-国际化”机制
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复合植物精油-丁酸钠微囊制剂对蛋雏鸡免疫功能和抗氧化性能的影响
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作者 程璞 贾增强 +2 位作者 贾亚君 靳双星 张桂枝 《饲料工业》 北大核心 2026年第3期69-74,共6页
试验旨在研究复合植物精油-丁酸钠微囊制剂对蛋雏鸡免疫功能和抗氧化性能的影响。选取200羽1日龄海兰褐蛋雏鸡,随机分为5组,每组8个重复,每个重复5只。对照组饲喂基础饲粮,试验A、B、C、D组分别在基础饲粮中添加复合植物精油-丁酸钠微... 试验旨在研究复合植物精油-丁酸钠微囊制剂对蛋雏鸡免疫功能和抗氧化性能的影响。选取200羽1日龄海兰褐蛋雏鸡,随机分为5组,每组8个重复,每个重复5只。对照组饲喂基础饲粮,试验A、B、C、D组分别在基础饲粮中添加复合植物精油-丁酸钠微囊制剂0.50、1.00、1.50、2.00 g/kg。试验期30 d。结果表明:与对照组相比,试验A、B、C、D组1~30日龄平均日增重显著提高(P<0.05);试验D组1~30日龄平均日采食量显著提高(P<0.05);试验C、D组1~30日龄料重比极显著降低(P<0.01);试验A、B、C、D组法氏囊指数极显著升高(P<0.01);试验D组脾脏指数显著升高(P<0.05);试验C、D组新城疫抗体水平显著升高(P<0.05);试验A、B、C、D组血清中的IgM含量显著升高(P<0.05);试验C、D组血清中的IgA极显著升高(P<0.01);IgG显著升高(P<0.05);试验C、D组血清中的谷胱甘肽过氧化物酶(GSH-Px)、总超氧化物歧化酶(T-SOD)活性显著升高(P<0.05);试验B组血清中丙二醛(MDA)含量显著降低(P<0.05),试验C、D组丙二醛(MDA)含量极显著降低(P<0.01);试验B组过氧化氢酶(CAT)活性显著升高(P<0.05)。因此,在基础饲粮中添加复合植物精油-丁酸钠微囊制剂能够提高蛋雏鸡的生长性能、免疫功能和抗氧化性能,综合考虑,最适添加量为1.50 g/kg。 展开更多
关键词 复合植物精油-丁酸钠微囊制剂 蛋雏鸡 生长性能 免疫功能 抗氧化性能
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中药院内制剂真实世界数据适用性评价专家共识
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作者 李庆娜 陆芳 高蕊 《中国新药杂志》 北大核心 2026年第2期113-120,共8页
随着中医药理论、人用经验和临床试验“三结合”中药注册审评证据体系的确定,人用经验利用成为中药新药研发的重要环节。医疗机构中药制剂因具备处方固定、便于收集人用经验证据等优势,成为中药新药转化的重要源泉。中药院内制剂真实世... 随着中医药理论、人用经验和临床试验“三结合”中药注册审评证据体系的确定,人用经验利用成为中药新药研发的重要环节。医疗机构中药制剂因具备处方固定、便于收集人用经验证据等优势,成为中药新药转化的重要源泉。中药院内制剂真实世界数据支持药物研发的适用性评价是开展真实世界研究的重要前提,本文介绍了中药院内制剂真实世界数据适用性评价专家共识,该共识涵盖一般要求、源数据及经治理数据的适用性评价条目解读,并针对适用性评价应具备的相关文档、评价结果的展示、中医药特点考量、数据完整性和安全性进行讨论,以期进一步推动中药院内制剂向中药创新药转化。 展开更多
关键词 中药院内制剂 真实世界数据 适用性评价 中药新药转化
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