检索结果-内蒙古大学图书馆

Reaction pathways and selectivity in the chemo-catalytic conversion of cellulose and its derivatives to ethylene glycol:A review

引用

Chinese Journal of Chemical engineering 2024年第2期66卷 310-331页

作者： Yao Li Yuchun Zhang Zhiyu Li Huiyan Zhang Peng Fu College of Agricultural Engineering and Food Science Shandong University of TechnologyZibo 255000China Key Laboratory of Energy Thermal Conversion and Control Ministry of EducationSchool of Energy and EnvironmentSoutheast UniversityNanjing 210096China

Biomass-to-ethylene glycol is an effective means to achieve high-value utilisation of cellulose but is hindered by low conversion efficiency and poor catalyst activity and *** and cellobiose are derivatives of cellulose conversion to ethylene glycol,and it is found that studying the reaction process of both can help to understand the reaction mechanism of *** is desirable to develop a reusable,highly active catalyst to convert cellulose into ethylene *** ideal catalyst might have one or more active sites described the conversion steps ***,we discuss the catalyst development of celluloseto-ethylene glycol,including tungsten,tin,lanthanide,and other transition metal catalysts,and special attention is given to the reaction mechanism and kinetics for preparing ethylene glycol from cellulose,and the economic advantages of biomass-to-ethylene glycol are briefly *** insights given in this review will facilitate further development of efficient catalysts,for addressing the global energy crisis and climate change related to the use of fossil fuels.

关键词： Ethylene glycol Cellulose Catalyst Retro-aldol condensation Hydrolysis Kinetics

来源：评论

学校读者我要写书评

暂无评论

Organic fertilizer enhances soil aggregate stability by altering greenhouse soil content of iron oxide and organic carbon

引用

Journal of Integrative Agriculture 2025年第1期24卷 306-321页

作者： Lijun Ren Han Yang Jin Li Nan Zhang Yanyu Han Hongtao Zou Yulong Zhang College of Land and Environment Shenyang Agricultural University/National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources/Key Laboratory of Arable Land Conservation in Northeast ChinaMinistry of Agriculture and Rural AffairsShenyang 110866China

Both soil organic carbon (SOC) and iron (Fe) oxide content, among other factors, drive the formation and stability of soil ***, the mechanism of these drivers in greenhouse soil fertilized with organic fertilizer is not well *** a 3-year field experiment, we aimed to investigate the factors which drive the stability of soil aggregates in greenhouse *** explore the impact of organic fertilizer on soil aggregates, we established four treatments:no fertilization (CK);inorganic fertilizer (CF);organic fertilizer (OF);and combined application of inorganic and organic fertilizers(COF).The application of organic fertilizer significantly enhanced the stability of aggregates, that is it enhanced the mean weight diameter, geometric mean diameter and aggregate content (%) of>0.25 mm aggregate *** and COF treatments increased the concentration of SOC, especially the aliphatic-C, aromatic-C and polysaccharide-C components of SOC, particularly in>0.25 mm *** fertilizer application significantly increased the content of free Fe(Fed), reactive Fe (Feo), and non-crystalline Fe in both bulk soil and ***, non-crystalline Fe showed a positive correlation with SOC content in both bulk soil and *** non-crystalline Fe and SOC were significantly positively correlated with>2 mm mean weight ***, we believe that the increase of SOC, aromatic-C, and non-crystal ine Fe concentrations in soil after the application of organic fertilizer is the reason for improving soil aggregate stability.

关键词： organic fertilizer soil aggregates soil organic carbon iron oxides greenhouse soil

来源：评论

学校读者我要写书评

暂无评论

Enhancing corn stalk-based anaerobic digestion with different types of zero-valent iron added during the acidification stage:Performance and mechanism

引用

Journal of environmental Sciences 2024年第11期145卷 64-74页

作者： Xiang Liu Yue Liu Min Wang Qianzhen Deng Hao Yang College of Agricultural Science and Engineering Hohai UniversityNanjing 210098China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution Wenzhou UniversityWenzhou 325035China Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse Anhui Jianzhu UniversityHefei 230009China

Anaerobic digestion has been defined as a competitive approach to facilitate the recycling of corn ***,few studies have focused on the role of direct interspecies electron transfer(DIET)pathway in the acidification stage under the addition of different particle sizes of zero-valent iron(ZVI).In this study,three types of ZVI,namely iron filings,iron powder and nanoscale iron,were investigated,respectively,to enhance its high-value *** in volatile fatty acids(VFAs)and methane(CH4)production associated with the underlyingmechanisms were emphatically *** indicated that the addition of ZVI could increase the concentration of VFAs,with the most outstanding performance observed with the use of nanoscale ***,the conversion of propionic acid to acetic acid was driven by adding ZVI with no between-group differences in acidizing ***,the substrate was more fully utilized when supplied with iron powder compared with other groups in methanogenic phase,thereby displaying the maximumCH4 yield with a value of 263.1 mL/(g total solids(TS)).However,adding nanoscale iron could signally shorten the digestion time(T80),saving 7 days in comparison to the group of iron powder.

关键词： Zero-valent iron Corn stalk Anaerobic digestion Volatile fatty acids Methane

来源：评论

学校读者我要写书评

暂无评论

Performances of an air thermal energy utilization system developed with fan-coil units in large-scale plastic tunnels covered with external blanket

引用

International Journal of agricultural and Biological engineering 2022年第5期15卷 56-62页

作者： Chengji Zong Zibin Xiao Weitang Song Pingzhi Wang Guifang Zhang Ming Li College of Water Resources and Civil Engineering China Agricultural UniversityBeijing 100083China Yinchuan Xingqing District Agricultural Technology Extension Center Yinchuan750001China Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural AffairsBeijing 10008

To improve the problem of low temperature at night in winter due to the lack of thermal storage in large-span plastic tunnels,an air thermal energy utilization system(ATEUS)was developed with fan-coil units to heat a large-scale plastic tunnel covered with an external blanket(LPTEB)on winter *** ATEUS was composed of nine fan-coil units mounted on top of the LPTEB,a water reservoir,pipes,and a water circulation *** the heat exchange between the air and the water flowing through the coils,the thermal energy from the air can be collected in the daytime,or the thermal energy in the water can be released into the LPTEB at *** sunny days,the collected thermal energy from the air in the daytime(E_(c))and released thermal energy at night(E_(r))were 0.25-0.44 MJ/m^(2) and 0.24-0.38 MJ/m^(2),*** ATEUS as a heating system,its coefficient of performance(COP),which is the ratio of the heat consumption of LPTEB to the power consumption of ATEUS,ranged from 1.6-2.1.A dynamic model was also developed to simulate the water temperature(T_(w)).Based on the simulation,E_(c) and E_(r) on sunny days can be increased by 60%-73%and 38%-62%,respectively,by diminishing the heat loss of the water reservoir and increasing the indoor air temperature in the period of collecting thermal ***,the COP can reach 2.6-3.8,and the developed ATEUS can be applied to heating the LPTEB in a way that conserves energy.

关键词： large scale plastic tunnel air thermal energy utilization system energy conservation COP

来源：评论

学校读者我要写书评

暂无评论

Using kin discrimination to construct synthetic microbial communities of Bacillus subtilis strains impacts the growth of black soldier fly larvae

引用

Insect Science 2024年第6期31卷 1943-1959页

作者： Jun-Hui Zhao Ping Cheng Yi Wang Xun Yan Zhi-Min Xu Dong-Hai Peng Guo-Hui Yu Ming-Wei Shao Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural AffairsGuangdong University Key Laboratory for Sustainable Control of Fruit and Vegetable Diseases and PestsInnovative Institute for Plant HealthCollege of Agriculture and BiologyZhongkai University of Agriculture and EngineeringGuangzhouChina State Key Laboratory of Agricultural Microbiology National Engineering Research Center of Microbial PesticidesCollege of Life Science and TechnologyHuazhong Agricultural UniversityWuhanChina Hubei Hongshan Laboratory WuhanChina College of Resources and Environment Zhongkai University of Agriculture and EngineeringGuangzhouChina

Using synthetic microbial communities to promote host growth is an effective ***,the construction of such communities lacks theoretical *** discrimination is an effective means by which strains can recognize themselves from non-self,and construct competitive microbial communities to produce more secondary ***,the construction of cooperative communities benefits from the widespread use of beneficial *** used kin discrimination to construct synthetic communities(SCs)comprising 13 Bacillus subtilis strains from the surface and gut of black soldier fly(BSF)*** assessed larval growth promotion in a pigeon manure system and found that the synthetic community comprising 4 strains(SC 4)had the most profound *** analyses of these 4 strains revealed that their complementary functional genes underpinned the robust functionality of the cooperative synthetic community,highlighting the importance of strain *** analyzing the bacterial composition of BSF larvae and the pigeon manure substrate,we observed that SC 4 altered the bacterial abundance in both the larval gut and pigeon *** also influenced microbial metabolic functions and co-occurrence network *** discrimination facilitates the rapid construction of synthetic *** positive effects of SC 4 on larval weight gain resulted from the functional redundancy and complementarity among the ***,SC 4 may enhance larval growth by inducing shifts in the bacterial composition of the larval gut and pigeon *** elucidated how the SC promoted larval growth by regulating bacterial composition and provided theoretical guidance for the construction of SCs.

关键词： community construction genomic analysis gut bacteria pigeon manure

来源：评论

学校读者我要写书评

暂无评论

Identification of phenolanine in rape bee pollen and its protective effect and mechanism on alcoholic liver injury

引用

Food Science and Human Wellness 2025年第2期14卷 484-496页

作者： Cheng Lü Mingjuan Xu Xinbiao Yang Yanlun Feng Yun Zhu Qun Lu Chengming Wang Rui Liu College of Food Science and Technology Huazhong Agricultural UniversityWuhan 430070China Wuhan Engineering Research Center of Bee Products on Quality and Safety Control Wuhan 430070China Key Laboratory of Environment Correlative Dietology(Huazhong Agricultural University) Ministry of EducationWuhan 430070China Key Laboratory of Urban Agriculture in Central China Ministry of Agriculture and Rural AffairsWuhan 430070China

Rape bee pollen has attracted increasing interests for its excellent protective effect against chemicalinduced liver injury owing to its abundant *** study aims to analyze the types and contents of phenolamides(seldom concerned)in rape bee pollen and their protective mechanism on alcoholic liver disease(ALD).Different from the previous finding that flavonoids are dominant polyphenols in bee pollen polyphenolic extract,our results demonstrated that there are only three flavonoids but 24 phenolamides in the as-prepared rape bee pollen phenolic extract(PPE).In addition,PPE was found to significantly improve the viability(from 54.9%to 84.1%,89.2%,and 94.0%)of alcohol-induced AML12 cells and alleviate alcoholinduced cell apoptosis(from 28.5%to 22.89%,22.0%,and 17.4%).To dissect the underlying mechanism for the protective effect of PPE against ALD,the molecular pathway was identified by RNA-Seq *** data revealed that PPE may protect against ALD by decreasing inflammation,cholesterol,and fatty acid synthesis(P<0.05).The National Institute on Alcohol Abuse and Alcoholism(NIAAA)model was used to further evaluate the hepatoprotective effect of PPE in vivo,and the results validated that PPE could alleviate liver injury and hepatic steatosis(from 22.7%to 11.5%and 10.9%)induced by *** the dominant polyphenols in PPE,phenolamides can be a class of valuable polyphenolic compounds in bee pollen with the potential to alleviate ALD.

关键词： Rape bee pollen Phenolamide Alcoholic liver disease(ALD) AML12s National Institute on Alcohol Abuse and Alcoholism(NIAAA) Transcriptome

来源：评论

学校读者我要写书评

暂无评论

Design, Synthesis and Application of a Robust d_(3)-Methyithiolating Reagent

引用

Chinese Journal of Chemistry 2023年第22期41卷 3045-3049,I0002页

作者： Yanyang Zhang Yishuo Ren Jian Zhang Shaoli Liu Yahui Li Key Laboratory of Agri-Food Safety of Anhui Province School of Resources and EnvironmentAnhui Agricultural UniversityHefeiAnhui230036China Key Laboratory of Green Pesticide and Agricultural Bio-engineering Ministry of EducationGuizhou UniversityGuiyangGuizhou 550025China Collegeof Chemistry and Chemical Engineering YantaiUniversityYantaiShandong 264005China

A deuterated methylthiolating reagent with a broad spectrum,designated as DMTp,has been ingeniously *** new reagent can be produced with high efficiency through the simple combination of commercially available methyl 3-thiopropanoate and CD_(3)*** novel SCD_(3) reagent exhibits excellent reactivity with electrophiles such as alkyl iodides,benzyl chlorides,aryl halides(l,Br)and aryl triflates,resulting in high levels of deuterium content(99%D).Representative deuterated methylthiolated biomolecules,such as Sulfoxaflor,havebeen synthesizedforuse in pharmaceutical discoveryand development.

关键词： New reagent d_(3)-Methylthiolating reagent Metal-catalyzed Application Aryl halides C1 building blocks Cleavage reactions Organohalides

来源：评论

学校读者我要写书评

暂无评论

Defect-designed Mo-doped BiVO_(4)photoanode for efficient photoelectrochemical degradation of phenol

引用

Journal of Materials Science & Technology 2023年第34期165卷 225-234页

作者： Mufeng Yu Yiming Tang Yuxin Liao Wanhan He Xin-xin Lu Xin Li School of Environment Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety&MOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal UniversityGuangzhou 510006China PetroChina Shenzhen New Energy Research Institute Shenzhen 518052China Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642China

The monoclinic scheelite BiVO_(4)has impressive properties such as a narrow energy band gap,exceptional stability,and extended absorption in visible light,making it a suitable ***,the BiVO_(4)material encounters challenges such as the high recombination rate of photogenerated electronhole pairs and poor photoelectron conductivity,which limits photocatalytic *** address this problem,we developed Mo-doped BiVO_(4)films on FTO substrates for photoelectrocatalytic degradation of *** exposed to visible light,the Mo-BiVO_(4)film attained a 70%degradation of phenol in 120 min with a 1.2 V ***/AgCl bias—a 3.7 times improvement from pristine BiVO_(4).Mo-doping facilitates better migration and separation of electron-hole pairs and increases the concentration of photogenerated carriers,leading to an upward shift of the valence band potential direction,and an improvement in oxidation ***,density-functional theory(DFT)calculations were used to explain how Modoping with BiVO_(4)improves the adsorption energy to phenol degradation intermediates,emphasizing its effectiveness in promoting phenol ***,with the inclusion of DFT calculations,this work provides a more comprehensive understanding of the mechanism underlying the enhancement of photocatalytic activity by Mo-doped BiVO_(4),which is crucial information for the further development of effective and efficient photoanodes.

关键词： BiVO_(4) Doping Photoelectrocatalysis Phenol DFT calculations

来源：评论

学校读者我要写书评

暂无评论

Synergistic effects of chemical additives and mature compost on reducing H_2S emission during kitchen waste composting

引用

Journal of environmental Sciences 2024年第5期139卷 84-92页

作者： Yongdi Liu Haihou Wang Hao Zhang Yueyue Tao Rui Chen Sheng Hang Xiaoyan Ding Meidi Cheng Guochun Ding Yuquan Wei Ting Xu Ji Li College of Resources and Environmental Science Beijing Key Laboratory of Biodiversity and Organic FarmingChina Agricultural UniversityBeijing 100193China Organic Recycling Institute(Suzhou)of China Agricultural University Wuzhong DistrictSuzhou 215128China Suzhou Academy of Agricultural Sciences Institute of Agricultural Sciences in Taihu Lake DistrictSuzhou 215155China Technical Centre for Soil Agriculture and Rural Ecology and EnvironmentMinistry of Ecology and EnvironmentBeijing 100012China College of Chemistry and Chemical Engineering Yantai UniversityYantai 264005China

Additives could improve composting performance and reduce gaseous emission,but few studies have explored the synergistic of additives on H_(2)S emission and compost *** research aims to make an investigation about the effects of chemical additives and mature compost on H_(2)S emission and compost maturity of kitchen waste *** results showed that additives increased the germination index value and H_(2)S emission reduction over 15 days and the treatment with both chemical additives and mature compost achieved highest germination index value and H_(2)S emission reduction(85%).Except for the treatment with only chemical additives,the total sulfur content increased during the kitchen waste *** proportion of effective sulfur was higher with the addition of chemical additives,compared with other *** relative abundance of H_(2)S-formation bacterial(Desulfovibrio)was reduced and the relative abundance of bacterial(Pseudomonas and Paracoccus),which could convert sulfur-containing substances and H_(2)S to sulfate was improved with *** the composting process with both chemical additives and mature compost,the relative abundance of Desulfovibrio was lowest,while the relative abundance of Pseudomonas and Paracoccus was *** together,the chemical additives and mature compost achieved H_(2)S emission reduction by regulating the dynamics of microbial community.

关键词： Kitchen waste composting Sulfur conversion Chemical additives Mature compost Microbial community

来源：评论

学校读者我要写书评

暂无评论

Simulating Responses of Rice Yield and Nitrogen Fates to Ground Cover Rice Production System under Different Types of Precipitation Years

引用

Rice science 2024年第6期31卷 725-739,I0023,I0024页

作者： REN Jian HU Kelin FENG Puyu William DBATCHELOR LIU Haitao LÜShihua College of Land Science and Technology China Agricultural University/Key Laboratory of Arable Land Conservation(North China)Ministry of Agriculture and Rural AffairsBeijing 100193China Biosystems Engineering Department Auburn UniversityAuburnAL 36849USA Institute of Agricultural Resources and Environment Sichuan Academy of Agricultural SciencesChengdu 610066China

The Ground Cover Rice Production System(GCRPS)has considerable potential for securing rice production in hilly ***,its impact on yields and nitrogen(N)fates remains uncertain under varying rainfall conditions.A two-year field experiment(2021–2022)was conducted in Ziyang,Sichuan Province,located in the hilly areas of Southwest *** experiment included two cultivation methods:conventional flooding paddy(Paddy,W1)and GCRPS(W2).These methods were combined with three N management practices:N1(no-N fertilizer),N2(135 kg/hm^(2)urea as a base fertilizer in both W1 and W2),and N3(135 kg/hm^(2)urea with split application for W1 and 67.5 kg/hm^(2)urea and chicken manure separately for W2).The WHCNS(Soil Water Heat Carbon Nitrogen Simulator)model was calibrated and validated to simulate ponding water depth,soil water storage,soil mineral N content,leaf area index,aboveground dry matter,crop N uptake,and rice ***,this model was used to simulate the responses of rice yield and N fates to GCRPS under different types of precipitation years using meteorological data from 1980 to *** results indicated that the WHCNS model performed well in simulating crop growth and N fates for both Paddy and *** with Paddy,GCRPS reduced N leaching(35.1%–54.9%),ammonia volatilization(0.7%–13.6%),N runoff(71.1%–83.5%),denitrification(3.8%–6.7%),and total N loss(33.8%–56.9%)for all precipitation year ***,GCRPS reduced crop N uptake and yield during wet years,while increasing crop N uptake and yield during dry and normal *** application reduced the stability and sustainability of rice yield in wet years,but increased the stability and sustainability of rice yield in dry and normal *** conclusion,GCRPS is more suitable for normal and dry years in the study region,leading to increased rice yield and reduced N loss.

关键词： precipitation year type ground cover rice production system rice yield nitrogen fate model simulation

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：