检索结果-南通市图书馆

Advances in component and operation optimization of solid oxide electrolysis cell

Chinese Chemical Letters 2023年第5期34卷 155-164页

作者： Xiaoxin Zhang Bo Liu Yanling Yang Jianhui Li Jian Li Yingru Zhao Lichao Jia yifei sun College of Energy Xiamen UniversityXiamen 361102China School of Materials Science and Engineering State Key Lab of Materials Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan 430074China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China National Engineering Laboratory for Green Chemical Productions of Alcohols Ethers and EstersCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Shenzhen Research Institute of Xiamen University Shenzhen 518057China

Considering the earth powered by intermittent renewable energy in the coming future,solid oxide electrolysis cell(SOEC)will play an indispensable role in efficient energy conversion and storage on *** thermolytic and kinetic merits grant SOEC a bright potential to be directly integrated with electrical grid and downstream chemical synthesis ***,the scientific community are still endeavoring to pursue the SOEC assembled with better materials and operated at a more energy-efficient *** this review article,at cell level,we focus on the recent development of electrolyte,cathode,anode and buffer layer materials for both steam and CO_(2)*** the other hand,we also discuss the next generation SOEC operated with the assistant of other fuels to further reduce the energy consumption and enhance the productivity of the *** stack level,the sealant,interconnect and stack operation strategies are collectively ***,the challenges and future research direction in SOECs are included.

关键词： Solid oxide electrolysis cell Fuel assistant Stack Operation condition Anode Cathode

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

辅助生殖技术后代远期血压变化及影响因素

引用

中国细胞生物学学报 2024年第4期46卷 838-845页

作者：周晓倩孙一飞周炜崔琳琳山东大学生殖医学与子代健康全国重点实验室妇儿与生殖健康研究院国家辅助生殖与优生工程技术研究中心济南250012

自1978年以来,辅助生殖技术(assisted reproductive technology,ART)的应用愈加广泛,其安全性也一直备受关注,人们对通过ART受孕出生的后代的健康和发育提出了担忧。目前大多数研究发现ART后代血压高于自然妊娠后代。既往文献报道ART后... 详细信息

自1978年以来,辅助生殖技术(assisted reproductive technology,ART)的应用愈加广泛,其安全性也一直备受关注,人们对通过ART受孕出生的后代的健康和发育提出了担忧。目前大多数研究发现ART后代血压高于自然妊娠后代。既往文献报道ART后代血压升高可能与不良的围产期结局如早产、胎儿生长受限、胎盘功能不全的发生率增加,器官结构功能的改变以及后代表观遗传的改变有关,且ART后代青少年血压升高导致成年期心血管疾病发病风险增加。该文通过总结相关文献,从ART后代远期血压变化、影响因素及其可能的机制进行详细综述。

关键词：生殖技术辅助儿童血压

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flavor changes in Lentinus Edodes enzymatic hydrolysate maillard reaction products with different sugars by gas chromatography‐ion mobility spectrometry

引用

未来食品学报(英文) 2023年第1期3卷 43-48页

作者： Wenjia Cui Peiji Liu Houli Liu yifei sun Wenliang Wang Key Laboratory of Agro-Products Processing Technology of Shandong Province Key Laboratory of Novel Food Resources ProcessingMinistry of Agriculture and Rural AffairsInstitute of Agro-Food Science and TechnologyShandong Academy of Agricultural ScienceJinan 250100China Shandong Academy of Environmental Science Co. Ltd.Jinan 250100China

The characteristic flavor of the enzymatic hydrolysate of Lentinus edodes,which was involved in the Maillard reaction by xylose,fructose,glucose,sucrose,mannose,maltose,vitamin C(VC)and L-arabinose,was determined and analyzed by gas chromatography-ion mobility spectroscopy(GC-IMS).The characteristic flavor fingerprints of Maillard reaction products(MRPs)of *** enzymatic hydrolysate were *** differences in the characteristic flavors of Maillard reaction with different reducing sugars and VC were *** main characteristic flavor,characteristic peak,characteristic marker substance and content were determined,a principal component analysis(PCA)of volatile organic compounds(VOCs)was carried *** results showed that there were 42 kinds of monomers and some dimers of volatile compounds in the samples including 17 aldehydes,5 alcohols,7 ketones,2 esters,2 acids,7 other compounds and 2 *** volatile VOCs of the sample with added sucrose,VC and L-arabinose were significantly higher than those of the enzymatic hydrolysate of *** the Maillard reaction,the flavor of the hydrolysate was significantly improved,and the main components changed significantly.

关键词： Flavour Reducing sugar Lentinus edodes Maillard reaction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Numerical simulation of fluid-thermal-structural coupling characteristics of stratospheric non-rigid airship

引用

Chinese Journal of Aeronautics 2024年第9期37卷 224-236页

作者： Huafei DU Mingyun LYU Chuan YU yifei WU Yongmei WU Kangwen sun School of Aeronautic Science and Engineering Beihang UniversityBeijing 100191China Linzhou(Ningbo)Technology Co.Ltd Yuyao 315042China

The voluminous stratospheric non-rigid airship is very sensitive to the external thermal *** temperature change of internal gas caused by the variation in the external ther-mal environment and wind speed will lead to a change in the shape and buoyancy of the airship,thereby affecting its flight *** traditional static analysis method is difficult to accurately reflect this fuid-thermal-structural coupling *** this paper,the iterative analysis method was established for the fluid-thermal-structural coupling effect of stratospheric non-rigid airship based on the models of fluid,thermal,and structural *** the load such as the internal thermal effect and external flow field of the airship,the simulation of the thermo-induced structural deformation effect was conducted using Fluent and Abaqus *** influ-ence of local time and external wind speed on the structural deformation,volume,and equilibrium altitude of the airship was *** results demonstrate that,at low wind speed,the influence of aerodynamic pressure on the deformation of the airship is ***,a great amount of heat is carried away by the wind,then the structural deformation caused by internal and external pressure difference is alleviated and the equilibrium altitude of the airship change *** can serve as a guideline for the design and flight test of the long-endurance stratospheric non-rigid airship.

关键词： Altitude change Fluid-thermal-structural coupling Stratospheric non-rigid airship Structural deformation Wind speed

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genetic pathways in cerebral palsy:a review of the implications for precision diagnosis and understanding disease mechanisms

引用

Neural Regeneration Research 2024年第7期19卷 1499-1508页

作者： Yiran Xu yifei Li Seidu A.Richard Yanyan sun Changlian Zhu Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center Institute of Neuroscience and The Third Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina National Health Council(NHC)Key Laboratory of Birth Defects Prevention Henan Key Laboratory of Population Defects PreventionZhengzhouHenan ProvinceChina Department of Human Anatomy School of Basic Medicine and Institute of NeuroscienceZhengzhou UniversityZhengzhouHenan ProvinceChina Center for Brain Repair and Rehabilitation Institute of Neuroscience and PhysiologyUniversity of GothenburgGothenburgSweden

Ce rebral palsy is a diagnostic term utilized to describe a group of permanent disorders affecting movement and *** with cerebral palsy are often only capable of limited activity,resulting from non-progressive disturbances in the fetal or neonatal *** disturbances severely impact the child’s daily life and impose a substantial economic burden on the *** cerebral palsy encompasses various brain injuries leading to similar clinical outcomes,the unde rstanding of its etiological pathways remains incomplete owing to its complexity and *** review aims to summarize the current knowledge on the genetic factors influencing cerebral palsy *** is now widely acknowledged that genetic mutations and alterations play a pivotal role in cerebral palsy development,which can be further influenced by environmental fa *** pite continuous research endeavors,the underlying fa ctors contributing to cerebral palsy remain are still ***,significant progress has been made in genetic research that has markedly enhanced our comprehension of the genetic factors underlying cerebral palsy *** r,these genetic factors have been categorized based on the identified gene mutations in patients through clinical genotyping,including thrombosis,angiogenesis,mitochondrial and oxidative phosphorylation function,neuronal migration,and cellular ***,exploring targeted genotypes holds potential for precision *** conclusion,advancements in genetic research have substantially improved our understanding of the genetic causes underlying cerebral *** breakthroughs have the potential to pave the way for new treatments and therapies,consequently shaping the future of cerebral palsy research and its clinical *** investigation of cerebral palsy genetics holds the potential to significantly advance treatments and management *** elucidating the underlying cellular mechanisms,w

关键词： cerebral palsy environmental factors etiology genetic factors genetic mutation movement disorder spastic diplegia

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

枯草芽孢杆菌DC-1产维生素K_(2)的发酵条件优化

引用

食品研究与开发 2024年第3期45卷 123-130页

作者：黄友美曹盛孙一斐李诗敏夏雪雪袁干军江西农业大学生物技术药物研发工程中心江西南昌330045 江西农业大学生物科学与工程学院江西南昌330045

为提高微生物发酵法生产维生素K_(2)的产量和多样性,对枯草芽孢杆菌DC-1的发酵条件进行优化。采用单因素试验对其发酵条件包括碳源、氮源和无机盐进行初步优化,通过Plackett-Burman(PB)试验筛选出对DC-1产维生素K_(2)具有显著性影响的因... 详细信息

为提高微生物发酵法生产维生素K_(2)的产量和多样性,对枯草芽孢杆菌DC-1的发酵条件进行优化。采用单因素试验对其发酵条件包括碳源、氮源和无机盐进行初步优化,通过Plackett-Burman(PB)试验筛选出对DC-1产维生素K_(2)具有显著性影响的因素,应用响应面Box-Behnken设计优化获得DC-1的最优发酵条件。结果表明,DC-1产维生素K_(2)的最优发酵条件为甘油添加量36.5 g/L、糖蜜添加量31.8 g/L、黄豆粉添加量32.5 g/L、KH2PO_(4)浓度0.3 g/100 mL、K_(2)HPO_(4)·3H_(2)O浓度0.8 g/100 mL、Mg SO_(4)·7H_(2)O浓度0.7 g/100 mL、Na Cl浓度0.5 g/100 mL。在该条件下,MK-7产量达到94.66 mg/L,比初始发酵条件提高了48.04%;同时菌株DC-1产维生素K_(2)的多样性增加,经液相色谱-质谱联用(liquid chromatograph mass spectrometer,LC-MS)鉴定能同时产5种MK同系物,分别为MK-2、MK-3、MK-4和MK-7,其中一个类似物未能在高分辨率质谱中找到,根据保留时间推测其为MK-5或MK-6,可为维生素K_(2)的工业化生产和探索维生素K_(2)同系物的生物活性奠定基础。

关键词：维生素K_(2) 枯草芽孢杆菌高效液相色谱法发酵优化产物多样性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Achieving Negatively Charged Pt Single Atoms on Amorphous Ni(OH)_(2)Nanosheets with Promoted Hydrogen Absorption in Hydrogen Evolution

引用

Nano-Micro Letters 2024年第10期16卷 213-224页

作者： Yue Liu Gui Liu Xiangyu Chen Chuang Xue Mingke sun yifei Liu Jianxin Kang Xiujuan sun Lin Guo School of Chemistry Beijing Advanced Innovation Center for Biomedical EngineeringKey Laboratory of Bio-inspired Smart Interfacial Science and TechnologyBeihang UniversityBeijing 100191People's Republic of China School of Chemistry Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationXiangtan UniversityXiangtan 411105HunanPeople'Republic of China

Single-atom(SA)catalysts with nearly 100%atom utilization have been widely employed in electrolysis for decades,due to the outperforming catalytic activity and ***,most of the reported SA catalysts are fixed through the strong bonding between the dispersed single metallic atoms with nonmetallic atoms of the substrates,which greatly limits the controllable regulation of electrocatalytic activity of SA *** this work,Pt-Ni bonded Pt SA catalyst with adjustable electronic states was successfully constructed through a controllable electrochemical reduction on the coordination unsaturated amorphous Ni(OH)_(2)nanosheet *** on the X-ray absorption fine structure analysis and first-principles calculations,Pt SA was bonded with Ni sites of amorphous Ni(OH)_(2),rather than conventional O sites,resulting in negatively charged Pt^(δ-).In situ Raman spectroscopy revealed that the changed configuration and electronic states greatly enhanced absorbability for activated hydrogen atoms,which were the essential intermediate for alkaline hydrogen evolution *** hydrogen spillover process was revealed from amorphous Ni(OH)_(2)that effectively cleave the H-O-H bond of H_(2)O and produce H atom to the Pt SA sites,leading to a low overpotential of 48 mV in alkaline electrolyte at-1000 mA cm^(-2)mg^(-1)_(Pt),evidently better than commercial Pt/C *** work provided new strategy for the control-lable modulation of the local structure of SA catalysts and the systematic regulation of the electronic states.

关键词： Hydrogen evolution reaction Amorphous Pt single atoms Hydrogen spillover

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Different agricultural practices specify bacterial community compositions in the soil rhizosphere and root zone

引用

Soil Ecology Letters 2022年第1期4卷 18-31页

作者： Yan Wang Guowei Chen yifei sun Kun Zhu Yan Jin Baoguo Li Gang Wang Department of Water&Soil Sciences China Agricultural UniversityBeijing 100193China Department of Civil Engineering Hefei University of TechnologyHefei 230009China Department of Plant&Soil Sciences University of DelawareNewarkDE 19716USA

We are only beginning to understand the influence of agricultural practices,together with soil properties and geographic factors,affect bacterial communities and their influence on the soil ***,we quantify how typical agro-practices,i.e.,no-tillage,ridge tillage,continuous corn cropping,and crop rotation with corn and bean,and the corresponding soil physicochemical characteristics affect bacterial diversity and community compositions of the rhizosphere and root zone *** show that species richness in the rhizosphere was significantly higher than that in the root zone soils(p<0.05),typically with more abundant Crenarchaeota and Firmicutes populations that are active members for C and N ***,crop rotation compared to other agro-practices was able to mediate soil pH value and the available P and thereby control the bacterial diversity pattern in the rhizosphere(p<0.05),while tillage practices regulated the relative abundance of bacterial populations in root zone soils by varying the soil available N(p<0.05).Analysis of biomarker patterns suggests that the observed differences in bacterial functional capabilities(e.g.,nutrient cycling)are strongly related to the physicochemical properties of surrounding *** results highlight the importance of soil-plant interaction in shaping soil bacterial community structure typically in the rhizosphere and root zone soils and also illustrates the challenges in linking soil ecosystem function to microbial processes.

关键词： Next generation sequencing Agro-practices Bacterial community Rhizosphere

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Online Consensus Control of Nonlinear Affine Systems From Disturbed Data

引用

IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 551-553页

作者： yifei Li Wenjie Liu Jian sun Chen Chen Jia Zhang Gang Wang National Key Laborary of Autonomous Intelligent Unmanned Systems Beijing Institute of TechnologyBeijing 100081 Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China

Dear Editor,In this letter, we introduce a novel online distributed data-driven robust control approach for learning controllers of unknown nonlinear multi-agent systems(MASs) using state-dependent representations.

关键词： agent online Online

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Impact of mechanical compaction on crop growth and sustainable agriculture

引用

Frontiers of Agricultural Science and Engineering 2024年第2期11卷 243-252页

作者： Zijian LONG yifei WANG Baoru sun Xiaoyan TANG Kemo JIN College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentKey Laboratory of Plant–Soil Interactions(Ministry of Education)China Agricultural UniversityBeijing 100193China College of Resources Sichuan Agricultural UniversityChengdu 611130China

With the development of agricultural technology to meet the growing demands of a rapidly increasing population and economic development,intensive agriculture practices have been widely adopted globally. However,this intensification has resulted in adverse consequences for soil structure due to intensified farming activities and increased usage of heavy farm *** particular concern is soil compaction, which leads to the degradation of physical, chemical and biological properties of the soil. Soil compaction negatively impacts crop growth, reduces yields and poses a significant threat to food security and the overall sustainability of agricultural *** these challenges, this review aims to deepen understanding of the factors contributing to soil compaction and to develop effective mitigation strategies. By doing so, it is intended to attenuate the adverse impacts of soil compaction, improve soil structure, increase crop yield and ultimately enhance the sustainability of agricultural practices.

关键词： Soil compaction mechanical compaction bio-tillage agricultural production

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：