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Study on the flow structure in curved open channels with suspended vegetation using multi relaxation time lattice Boltzmann method

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Journal of Hydrodynamics 2024年第2期36卷 300-315页

作者： He-fang jing Qiao-ling Zhang Wei-hong Wang Zong-ning Zhang School of Mathematics and Information Science North Minzu UniversityYinchuan750021China School of Civil Engineering North Minzu UniversityYinchuan750021China Department of Basic Courses Zhengzhou University of Science and TechnologyZhengzhou450064China

Suspended vegetation in rivers,lakes,reservoirs and canals can change flow structure,which will in turn affect the sediment transport and cause the variation of water ecological *** order to study the characteristics of bend flow through suspended vegetation,three-dimensional numerical simulations are carried out by using the multi-relaxation-time lattice Boltzmann method(MRT-LBM).The drag force induced by vegetation is added in the velocity correction in the equilibrium distribution and a hybrid format combined bounce and specular reflection scheme is applied in the solid-fluid *** the validation of this model,six cases are designed to conduct the numerical simulations according to the root depth and the arrangement of *** simulated results show that the suspended vegetation can redistribute the flow structure in curved open *** the arrangement of suspended vegetation,the main flow moves to the side without vegetation,and the distribution of velocity tends to be balanced when vegetation is arranged on the entire cross section,the range of circulating current is reduced from the whole cross section to the local position without vegetation,however,the circulating current can still exist in the curve where the suspended vegetation enters less than half of the water *** addition,it can also be concluded that the suspended vegetation can affect the lateral gradient of flow velocity,and the bed shear stress in the curved channel.

关键词： Multi-relaxation-time lattice Boltzmann method(MRT-LBM) suspended vegetation curved open channel circulating current bed shearstress

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Biomass-enhanced Janus sponge-like hydrogel with salt resistance and high strength for efficient solar desalination

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GREEN ENERGY & ENVIRONMENT 2024年第11期9卷 1698-1710页

作者： Chu, Aqiang Yang, Meng Chen, Juanli Zhao, Jinmin fang, jing Yang, Zhensheng Li, Hao Hebei Univ Technol Sch Chem Engn & Technol Natl Local Joint Engn Lab Energy Conservat Chem Pr Tianjin 300401 Peoples R China

Interfacial solar-driven evaporation technology shows great potential in the field of industrial seawater desalination, and the development of efficient and low-cost evaporation materials is key to achieving large-scale applications. Hydrogels are considered to be promising candidates; however, conventional hydrogel-based interfacial solar evaporators have difficulty in simultaneously meeting multiple requirements, including a high evaporation rate, salt resistance, and good mechanical properties. In this study, a Janus sponge-like hydrogel solar evaporator (CPAS) with excellent comprehensive performance was successfully constructed. The introduction of biomass agar (AG) into the polyvinyl alcohol (PVA) hydrogel backbone reduced the enthalpy of water evaporation, optimized the pore structure, and improved the mechanical properties. Meanwhile, by introducing hydrophobic fumed nano-silica aerogel (SA) and a synergistic foaming-crosslinking process, the hydrogel spontaneously formed a Janus structure with a hydrophobic surface and hydrophilic bottom properties. Based on the reduction of the evaporation enthalpy and the modulation of the pore structure, the CPAS evaporation rate reached 3.56 kg m2 h-1 under one sun illumination. Most importantly, owing to the hydrophobic top surface and 3D-interconnected porous channels, the evaporator could work stably in high concentrations of salt-water (25 wt% NaCl), showing strong salt resistance. Efficient water evaporation, excellent salt resistance, scalable preparation processes, and low-cost raw materials make CPAS extremely promising for practical applications. (c) 2023 Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/4.0/).

关键词： Solar interfacial evaporation Hydrogel Biomass Desalination Salt resistance

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Nitrogen addition increased resistance of resident plant community to Solidago canadensis invasion by altering allelopathic effect

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Journal of Plant Ecology 2024年第2期17卷 110-121页

作者： jing-fang Cai Kai Sun Lin Li Si-Ha A Yi-Luan Shen Hong-Li Li School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China The Key Laboratory of EcologicalProtection in the Yellow River Basin of National Forestry and Grassland Administration Beijing Forestry UniversityBeijing 100083China

Allelopathy plays an important role in the interaction between invasive and resident *** nitrogen(N)deposition has become a global problem,but it is unclear whether N enrichment affects the interaction between invasive and resident plants by affecting their ***,we performed a greenhouse experiment in which the resident plant community was grown under two levels of invasion by ***(invasion *** invasion)and fully crossed with two levels of allelopathy(with or without adding activated carbon)and two levels of N addition(with or without).The resident plant communities were constructed with eight herbaceous species that often co-occur with *** results showed that both allelopathy of *** and the resident plants had obvious positive effects on their own *** addition had more obvious positive effects on the resident plants under invasion than those that were not ***,N addition also altered the allelopathy of resident ***,N addition improved the allelopathy of resident plants when they were invaded but decreased the allelopathy of resident plants when they grew *** nitrogen addition had no obvious effect on ***,it reduced the allelopathy of *** results suggest that N addition could improve the resistance of resident plants to invasion by improving the allelopathy of resident plants and reducing the allelopathy of *** fndings provide a scientifc basis to manage and control the *** invasion.

关键词： allelochemicals biological invasion nutrient input nitrogen addition resident plants Solidago canadensis

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Impact of body mass index on adverse kidney events in diabetes mellitus patients: A systematic-review and meta-analysis

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World Journal of Clinical Cases 2024年第3期12卷 538-550页

作者： jing-fang Wan Yan Chen Tian-Hua Yao Ya-Zhou Wu Huan-Zi Dai Department of Nephrology Army Medical UniversityChongqing 400042China Department of Nephrology Chongqing Western HospitalChongqing 400052China Health Statistics Army Medical UniversityChongqing 400038China Department of Nephrology Daping HospitalArmy Medical UniversityChongqing 400042China

BACKGROUND The incidence of chronic kidney disease among patients with diabetes mellitus(DM)remains a global ***-term obesity is known to possibly influence the development of type 2 diabetes ***,no previous meta-analysis has assessed the effects of body mass index(BMI)on adverse kidney events in patients with *** To determine the impact of BMI on adverse kidney events in patients with *** A systematic literature search was performed on the PubMed,ISI Web of Science,Scopus,Ovid,Google Scholar,EMBASE,and BMJ *** included trials with the following characteristics:(1)Type of study:Prospective,retrospective,randomized,and non-randomized in design;(2)participants:Restricted to patients with DM aged≥18 years;(3)intervention:No intervention;and(4)kidney adverse events:Onset of diabetic kidney disease[estimated glomerular filtration rate(eGFR)of<60 mL/min/1.73 m2 and/or microalbuminuria value of≥30 mg/g Cr],serum creatinine increase of more than double the baseline or end-stage renal disease(eGFR<15 mL/min/1.73 m2 or dialysis),or *** Overall,11 studies involving 801 patients with DM were *** BMI(≥25 kg/m2)was significantly associated with higher blood pressure(BP)[systolic BP by 0.20,95%confidence interval(CI):0.15–0.25,P<0.00001;diastolic BP by 0.21 mmHg,95%CI:0.04–0.37,P=0.010],serum albumin,triglycerides[standard mean difference(SMD)=0.35,95%CI:0.29–0.41,P<0.00001],low-density lipoprotein(SMD=0.12,95%CI:0.04–0.20,P=0.030),and lower high-density lipoprotein(SMD=–0.36,95%CI:–0.51 to–0.21,P<0.00001)in patients with DM compared with those with low BMIs(<25 kg/m2).Our analysis showed that high BMI was associated with a higher risk ratio of adverse kidney events than low BMI(RR:1.22,95%CI:1.01–1.43,P=0.036).CONCLUSION The present analysis suggested that high BMI was a risk factor for adverse kidney events in patients with DM.

关键词： Obesity Body mass index Diabetes mellitus Adverse kidney events Systematic-review Meta-analysis

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推动实施性研究和全健康应对全球四大健康挑战:2024—2029年热带病研究和培训特别规划署战略规划解读

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中国血吸虫病防治杂志 2024年第1期36卷 13-16,24页

作者：方菁昆明医科大学健康研究所云南昆明650500

热带病,特别是被忽视的热带病和贫困所致传染病仍然是危害世界上最贫困和最边缘人群的主要健康问题。热带病研究和培训特别规划署(Special Programme for Research and Training in Tropical Diseases,TDR)是由世界卫生组织、联合国儿... 详细信息

热带病,特别是被忽视的热带病和贫困所致传染病仍然是危害世界上最贫困和最边缘人群的主要健康问题。热带病研究和培训特别规划署(Special Programme for Research and Training in Tropical Diseases,TDR)是由世界卫生组织、联合国儿童基金会、联合国开发计划署、世界银行联合建立的一个推动、支持、指导和协调全球热带病防控的重要机构。2023年7月,TDR正式发布其2024—2029年战略规划,为未来6年全球热带病防控工作明确了方向和工作重点。该战略规划在坚持原有工作重点,即继续支持中、低收入国家研究者和研究机构开展热带病防控研究和培养其研究能力的基础上,有了一些新的发展方向,主要包括:①将热带病防治纳入应对全球主要健康挑战和实现联合国可持续发展健康目标的大框架内,以便以协同和整合的方式在防控热带病的同时对实现联合国可持续发展健康目标和应对全球健康挑战做出贡献;②以支持实施性研究为主,鼓励实践者和社会创新者参与研究,以寻找可用于解决当地实际健康问题的对策;③推动和鼓励采用全健康理念以及多学科、跨部门合作;④将工作重点逐渐从防控疾病为主转移到关注最贫困、最边缘人群的健康需求。这些新的发展方向值得国内致力于热带病研究与防控实践的人员和机构关注,以便对未来研究和实践工作有所裨益。

关键词：热带病战略规划实施性研究全健康

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Furin Enzyme-Responsive siRNA Delivery System for Efficient Anti-Hypoxia-Assisted Cancer Photodynamic Therapy

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CCS Chemistry 2024年第4期6卷 999-1010页

作者： Shuyue Ye Yali Feng Yuqi Zhang jing fang Anna Wang Chaoxiang Cui Jinfeng Zhu Liangsheng Guo Guohua Fan Haibin Shi State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhou 215123 Department of Radiology The Second Affiliated Hospital of Soochow UniversitySuzhou 215004 Department of Obstetrics and Gynecology The Second Affiliated Hospital of Soochow UniversitySuzhou 215004

RNA interfering therapy has emerged as a promising therapeutic modality to treat *** specific and efficient delivery of RNA into a tumor is crucial for achieving effective cancer gene therapy but remains a huge ***,we report a novel furin-responsive small interfering RNA(siRNA)delivery vehicle with multiple functions for colorectal tumor treatment.A peptide-based siRNA delivery vehicle RVRR-P18-Gd,consisting of furin enzyme-specific peptide substrate Arg-Val-Arg-Arg(RVRR)with positive charge for siRNA binding,a Gd(III)chelated 1,4,7,10-tetraazacyclododecane-N,N′,N″,N‴-tetraacetic acid(DOTA)(DOTA-Gd)for magnetic resonance imaging,and purpurin 18 as photosensitizer for photodynamic therapy(PDT),was rationally designed and *** advantage of the cationic amphiphilic feature,RVRR-P18-Gd molecules spontaneously self-assembled with negatively charged Hif-1αsiRNA into stable nanoparticles via attractive electrostatic interaction,which effectively prevented siRNA degradation by nucleases,prolonged the circulation half-life,and enhanced tumor ***,the specific release of Hif-1αsiRNA mediated by endogenous furin significantly downregulated Hif-1αexpression in colorectal cancer cells,resulting in enhanced therapeutic susceptibility,and with the PDT effect,effectively suppressed HCT116 tumor growth in living *** work highlights a powerful and universal approach to precisely deliver siRNA to targeted tumors for efficient synergistic therapy.

关键词： self-assembly RNA interfering enzymeresponsive delivery anti-hypoxia photodynamic therapy

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痴呆症家庭照顾者照顾负担生物标志物的研究进展

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中国病理生理杂志 2024年第7期40卷 1345-1350页

作者：王媛房婧广州医科大学护理学院广东广州510180 广州医科大学附属第三医院广东广州510140

痴呆症照护会给家庭照顾者带来一系列身体、心理、社会相关的健康问题,选择合适的指标对照顾者的健康状况进行客观评估至关重要。本文从神经内分泌、免疫、心血管、神经认知和分子衰老几个方面综述了痴呆症家庭照顾者照顾负担的生物标志... 详细信息

痴呆症照护会给家庭照顾者带来一系列身体、心理、社会相关的健康问题,选择合适的指标对照顾者的健康状况进行客观评估至关重要。本文从神经内分泌、免疫、心血管、神经认知和分子衰老几个方面综述了痴呆症家庭照顾者照顾负担的生物标志物,并对各指标的异质性进行了分析。鉴于痴呆症患病人数不断增加,家庭照顾负担重,完善现有的生物标志物检测方法、开发更合适的生物标志物,对于评价和维护家庭照顾者的健康有着十分重要的意义。

关键词：痴呆家庭照顾者照顾负担生物标志物

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发展新质生产力推进成渝地区双城经济圈国家战略腹地建设

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重庆大学学报（社会科学版） 2024年第4期30卷 1-20页

作者：姚树洁房景重庆大学经济与工商管理学院重庆400044 辽宁大学李安民经济研究院辽宁沈阳110036 杭州师范大学经济学院浙江杭州311121

2023年12月,中央经济工作会议提出“优化重大生产力布局,加强国家战略腹地建设”的重大策略。党中央高度重视西部地区发展,2024年4月习近平总书记考察重庆时强调“建设成渝地区双城经济圈是党中央作出的重大战略决策”。2024年的《政府... 详细信息

2023年12月,中央经济工作会议提出“优化重大生产力布局,加强国家战略腹地建设”的重大策略。党中央高度重视西部地区发展,2024年4月习近平总书记考察重庆时强调“建设成渝地区双城经济圈是党中央作出的重大战略决策”。2024年的《政府工作报告》再次强调加强国家战略腹地建设的重要性。顾名思义,战略腹地是相较于沿海(沿边)地区而言的。因此,中西部地区必将是国家战略腹地建设的重点区域。成渝地区双城经济圈位于长江上游,与东部沿海地区有数千公里的距离,在国家西部大开发战略推动下,双城经济圈社会经济和科技发展水平不断追赶沿海三大经济增长极。该地区人口众多、土地辽阔、自然资源丰富、经济规模较大、科技力量雄厚、战略地位特殊,是打造新时代国家战略腹地的理想核心承载地区之一。本文首先梳理21世纪以来成渝地区双城经济圈在经济增长、人口集聚、科技创新、产业发展、市场培育、对外开放等方面所取得的显著成就,在此基础上分析该地区培育新质生产力、提高发展质量的机遇和挑战,最后提出新时代成渝地区双城经济圈建设国家战略腹地核心承载区的政策建议。

关键词：成渝地区双城经济圈国家战略腹地核心承载地新质生产力

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Optimization of extreme ultraviolet vortex beam based on high harmonic generation

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Chinese Physics B 2024年第5期33卷 459-464页

作者：肖礴赵逸文程方晶王革文姜威王一琛胡杰梁红静马日 Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China College of Science Jilin Institute of Chemical TechnologyJilin 132022China

In high harmonic generation(HHG),Laguerre–Gaussian(LG) beams are used to generate extreme ultraviolet(XUV)vortices with well-defined orbital angular momentum(OAM),which have potential applications in fields such as microscopy and *** experimental study on the HHG driven by vortex and Gaussian beams is conducted in this *** is found that the intensity of vortex harmonics is positively correlated with the laser energy and gas *** structure and intensity distribution of the vortex harmonics exhibit significant dependence on the relative position between the gas jet and the laser *** ring-like structures observed in the vortex harmonics,and the interference of quantum paths provide an explanation for the distinct structural ***,by adjusting the relative position between the jet and laser focus,it is possible to discern the contributions from different quantum *** optimization of the HH vortex field is applicable to the XUV,which opens up a new way for exploiting the potential in optical spin or manipulating electrons by using the photon with tunable orbital angular momentum.

关键词： high harmonic generation phase matching extreme ultraviolet vortex beam quantum path interference

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论托马斯·阿奎那情感与德性的系统关联

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系统科学学报 2024年第3期32卷 14-18页

作者：韦芳婧武汉大学哲学学院湖北武汉430072

托马斯·阿奎那将情感理解为意欲中的运动,包括感性意欲的运动与理性意欲的运动,并将德性定义为出于理智或意志选择的人性行为的习性。感性意欲中的情感在最高活动水平上与理性相关,理性意欲中的情感与理性一致,因此情感得以与德性关联... 详细信息

托马斯·阿奎那将情感理解为意欲中的运动,包括感性意欲的运动与理性意欲的运动,并将德性定义为出于理智或意志选择的人性行为的习性。感性意欲中的情感在最高活动水平上与理性相关,理性意欲中的情感与理性一致,因此情感得以与德性关联且形成一个整体性的系统。这一系统中,理性成为情感与德性相关联的内在原则,爱是整个系统的基础与源头。同时,情感与德性的关联系统指向双重层次之上的人生目的与幸福,因此该关联系统具有较高的与较低的双层结构。

关键词：意欲德性爱幸福

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