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Journal of Energy Chemistry 2020年第11期29卷 324-331页

作者： Xian-Wei Lv Yuping Liu Wenwen tian Lijiao Gao Zhong-Yong Yuan National Institute for Advanced Materials School of Materials Science and EngineeringNankai UniversityTianjin 300350China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Multifunctional non-precious catalysts for hydrogen/oxygen evolution reaction(HER/OER) and oxygen reduction reaction(ORR) constitute the bottleneck in the applications in electrochemical overall water splitting(OWS) and Zn-air batteries. Herein, a trifunctional electrocatalyst of urchin-like Al,P-codoped Co3O4 microspheres supported on Ni foam(denoted as AP-CONPs/NF) was fabricated via a hydrothermal process and subsequent low-temperature annealing and phosphorization, exhibiting enhanced OER, HER and ORR activities compared with single-doped and undoped samples. Their surface self-organized microstructure and excellent "superaerophobic" feature make a high bubble repellency, which boost diffusion of reactants and electrolyte-electrode intimate contact. The codoping of Al and P elements into Co3O4 betters right the balance among surface chemical state, the increased oxygen vacancies and the promoted charge transfer. Encouraged by these synergistic advantages, the AP-CONPs/NF was further employed as excellent bifunctional electrodes for the OWS(low cell voltage of 1.57 V at 10 mA cm-2) and as air cathode for rechargeable Zn-air batteries(high power density of 89.1 mW cm-2), which demonstrates a great feasibility for practical applications.

关键词： Trifunctional electrocatalysts Co3O4 Overall water splitting Zn-air batteries "Superaerophobic"surface Anion-cation double doping

Serum metabolic profile and metabolome genome‑wide association study in chicken

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Journal of Animal Science and Biotechnology 2023年第5期14卷 1926-1940页

作者： jing tian Xiaoning Zhu Hanyu Wu Yuzhe Wang Xiaoxiang Hu State Key Laboratory of Agrobiotechnology College of Biological SciencesChina Agricultural UniversityBeijing 100193China National Research Facility for Phenotypic and Genotypic Analysis of Model Animals(Beijing) China Agricultural UniversityBeijing 100193China

Background Chickens provide globally important livestock *** the genetic and molecular mechanisms underpinning chicken economic traits is crucial for improving their selective *** by a combination of genetic and environmental factors,metabolites are the ultimate expression of physiological processes and can provide key insights into livestock economic ***,the serum metabolite profile and genetic archi-tecture of the metabolome in chickens have not been well *** Here,comprehensive metabolome detection was performed using non-targeted LC–MS/MS on serum from a chicken advanced intercross line(AIL).In total,7,191 metabolites were used to construct a chicken serum metabo-lomics dataset and to comprehensively characterize the serum metabolism of the chicken AIL ***-tory loci affecting metabolites were identified in a metabolome genome-wide association study(mGWAS).There were 10,061 significant SNPs associated with 253 metabolites that were widely distributed across the entire chicken *** functional genes affect metabolite synthesis,metabolism,and *** highlight the key roles of TDH and AASS in amino acids,and ABCB1 and CD36 in *** We constructed a chicken serum metabolite dataset containing 7,191 metabolites to provide a refer-ence for future chicken metabolome characterization ***,we used mGWAS to analyze the genetic basis of chicken metabolic traits and metabolites and to improve chicken breeding.

关键词： Chicken Metabolic traits mGWAS Serum

Colorimetric Recognition of 3,4-Dihydroxy-D,L-phenylalanine with Tetrapeptide-modified Copper Nanoparticles as Chiral Nanozymes

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Chemical Research in Chinese Universities 2023年第6期39卷 1092-1099页

作者： tian Lin CHENG Cheng ZHAO Zhenwen LIU Wei QI Li Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of Pharmacy Xinxiang Medical UniversityXinxiang 453003P.R.China College of Chemistry&Environmental Science Hebei UniversityBaoding 071002P.R.China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049P.R.China

The construct of artificial nanocatalyts by simulating natural enzymes and thereby bringing new properties for practical applications is still a challenging task to *** this study,chiral tetrapeptide(L-phenylalanine-L-phenylalanine-L-cysteine-L-histidine)-engineered copper nanoparticles(FFCH@CuNPs)were fabricated as an artificial peroxidase(POD).More interestingly,the nano-catalysts exhibited chiral identification *** comparison with other nanocatalysts like L-cysteine-,L-histidine-,chiral dipeptide(L-cysteine-L-histidine)-,or chiral tripeptide(L-phenylalanine-L-cysteine-L-histidine)-modified CuNPs,FFCH@CuNPs demonstrated higher POD-mimetic catalytic activity in the 3,3',5,5'-tetramethylbenzidine(TMB)-H_(2)O_(2) system and stronger enantioselectivity in the recognition of 3,4-dihydroxy-D,L-phenylalanine(D,L-DOPA)*** the strength difference between the intermolecular hydrogen bonding and theπ-πinteractions,the principle behind the chiral discrimination of D,L-DOPA was ***,higher contents of surface Cu2+ions and hydroxyl radicals were found in the FFCH@CuNPs-D-DOPA-TMB-H_(2)O_(2) system than in the FFCH@CuNPs-L-DOPA-TMB-H_(2)O_(2) *** on these results,a protocol for distinguishing between D,L-DOPA enantiomers through colorimetric recognition was *** study provides a new insight into the design and fabrication of oligopeptides@CuNPs-based chiral nanozymes with improved catalytic performance and features additional to those of natural enzymes.

关键词： Chiral nanozyme Copper nanoparticle 3 4-Dihydroxy-D L-phenylalanine(D L-DOPA) Enantioselectivity Tetrapeptide ligand

How do the landslide and non-landslide sampling strategies impact landslide susceptibility assessment? d A catchment-scale case study from China

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 877-894页

作者： Zizheng Guo Bixia tian Yuhang Zhu Jun He Taili Zhang School of Civil and Transportation Engineering Hebei University of TechnologyTianjin300401China Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment Sanhe065201China Faculty of Engineering China University of GeosciencesWuhan430074China Nanjing Center China Geological SurveyMinistry of Natural ResourcesNanjing210016China

The aim of this study is to investigate the impacts of the sampling strategy of landslide and non-landslide on the performance of landslide susceptibility assessment(LSA).The study area is the Feiyun catchment in Wenzhou City,Southeast *** types of landslides samples,combined with seven non-landslide sampling strategies,resulted in a total of 14 *** corresponding landslide susceptibility map(LSM)for each scenario was generated using the random forest *** receiver operating characteristic(ROC)curve and statistical indicators were calculated and used to assess the impact of the dataset sampling *** results showed that higher accuracies were achieved when using the landslide core as positive samples,combined with non-landslide sampling from the very low zone or buffer *** results reveal the influence of landslide and non-landslide sampling strategies on the accuracy of LSA,which provides a reference for subsequent researchers aiming to obtain a more reasonable LSM.

关键词： Landslide susceptibility Sampling strategy Machine learning Random forest China

具有混合约束的离散事件系统的Petri网控制器的研究

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计算机集成制造系统 2007年第8期13卷 1603-1607,1644页

作者：陶泽肖田元郝长中沈阳理工大学机械工程学院辽宁沈阳110168 清华大学国家CIMS工程研究中心北京100084

针对由Petri网建模的离散事件系统中具有混合约束的Petri网控制器的设计问题,利用局部设计和Pe-tri网简化技术改进与完善控制器的设计方法,并证明所提方法是最大容许的。先利用局部设计Petri网简化技术把所有约束库所融合为一个与它们... 详细信息

针对由Petri网建模的离散事件系统中具有混合约束的Petri网控制器的设计问题,利用局部设计和Pe-tri网简化技术改进与完善控制器的设计方法,并证明所提方法是最大容许的。先利用局部设计Petri网简化技术把所有约束库所融合为一个与它们标识总量相等的库所,然后再与受约束的变迁进行对照比较,使控制器的设计更为简单并且避免了死锁,尤其是对规模较大的系统,其优势更加明显。针对于约束的不同情况,给出了相应的控制器设计方法,最后通过几个例子对该方法的简单性和有效性进行了验证。

关键词： Petri网控制器结构冲突离散事件系统死锁

Routinely detected indicators in plasma have a predictive effect on the identification of HIV-infected patients with non-tuberculous mycobacterial and tuberculous infections

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Infectious Diseases of Poverty 2017年第1期6卷 1172-1179页

作者： Ren-tian Cai Feng-xue Yu Zhen tao Xue-qin Qian Jun Chen Hong-zhou Lu Department of Infectious Diseases Nanjing First HospitalNanjing Medical UniversityNanjingChina Department of Infectious Diseases Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina Department of Nephrology the Second Affiliated Hospital of the Southeast UniversityNanjingChina Department of Mycobacteria Culture Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina Huashan Hospital affiliated to Fudan University ShanghaiChina Medical College of Fudan University ShanghaiChina

Background:It is difficult to quickly distinguish non-tuberculous mycobacterial(NTM)infection from tuberculosis(TB)infection in human immunodeficiency virus(HIV)-infected patients because of many similarities between these diseases.A simple and effective way to determine the differences using routine blood tests is necessary in developing ***:A retrospective cohort study was conducted to recruit HIV-infected patients with either NTM infection or TB infection diagnosed for the first time according to mycobacterial culture and microscopic identification from May 2010 to March *** data included the analysis of blood cells,liver function,renal function,C-reactive protein(CRP),and erythrocyte sedimentation rate(ESR),and were compared between the HIV/TB and HIV/NTM ***:A total of 240 patients were *** number of HIV/TB and HIV/NTM patients was 113 and 127,*** were no significant differences in the CD4 T-cell count,age,sex,percentage of patients initiating antiretroviral therapy(ART)before the explicit diagnosis of TB or NTM *** infection was more likely to be restricted in the pulmonary while TB infection also involves extra-pulmonary *** the leukocyte count(5.60×109/L)and the proportion of neutrophils in the leukocyte count(76.70%)in the HIV/TB group were significantly higher than those in the HIV/NTM group(4.40×10^(9)/L[P=0.0014]and 69.30%[P<0.001].The analysis of liver function markers indicated that the concentration of albumin but not ALT and AST was significantly lower in the HIV/TB group than in the HIV/NTM group(P<0.001).The creatinine and urea levels were not significantly different between the two *** ESR(84.00 mm/h)and the concentration of CRP(59.60 mg/L)were significantly higher in the HIV/TB group than in the HIV/NTM group(52.00 mm/h and 19.60 mg/L,respectively)(P<0.001).To distinguish TB infection from NTM infection,the best cut-off value was 69.5 mm/h for ESR,with a positive pred

关键词： HIV Tuberculosis Non-tuberculous mycobacteria

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Environmental,social,and economic assessment of energy utilization of crop residue in China

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Frontiers in Energy 2021年第2期15卷 308-319页

作者： Yueling ZHANG Junjie LI Huan LIU Guangling ZHAO Yajun tian Kechang XIE Key Laboratory of Resources and Environmental System Optimization(Ministry of Education) College of Environmental Sciense and EngineeringNorth China Electic Power UniversityBeijing 102206China School Chemical and Environmental Engineering China University of Mining and TechnologyBeijng 100083China Department of Energy Conversion and Storage Technical University of DenmarkLyngby 2820Denmark National Institute of Clean and Low Carbon Energy Beijing 102211China Chinese Acadamy of Engineering Beijing 100088China

This paper aims to discuss an environmental, social, and economic analysis of energy utilization of crop residues from life cycle perspectives in China. The methodologies employed to achieve this objective are environmental life cycle assessment (E-LCA), life cycle cost (LCC), and social life cycle assessment (S-LCA). Five scenarios are developed based on the conversion technologies and final bioenergy products. The system boundaries include crop residue collection, transportation, pre-treatment, and conversion process. The replaced amounts of energy are also taken into account in the E-LCA analysis. The functional unit is defined as 1 MJ of energy produced. Eight impact categories are considered besides climate change in E-LCA. The investment capital cost and salary cost are collected and compared in the life cycle of the scenarios. Three stakeholders and several subcategories are considered in the S-LCA analysis defined by UNEP/SETAS guidelines. The results show that the energy utilization of crop residue has carbon emission factors of 0.09–0.18 kg (CO2 eq per 1 MJ), and presents a net carbon emissions reduction of 0.03–0.15 kg (CO2 eq per 1 MJ) compared with the convectional electricity or petrol, but the other impacts should be paid attention to in the biomass energy scenarios. The energy utilization of crop residues can bring economic benefit to local communities and the society, but the working conditions of local workers need to be improved in future biomass energy development.

关键词： crop residue life cycle assessment life cycle cost social life cycle assessment energy production

Ternary PtSmCo NPs electrocatalysts with enhanced oxygen reduction reaction

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Journal of Rare Earths 2020年第12期38卷 1305-1311页

作者： Qinghua Gong Leping Wang Ni Yang Lin tian Gang Xie Bing Li School of Mechanical and Power Engineering East China University of Science and Technology.Shanghai 200237China Kunming Metallurgical Research Institute Kunming 650031China State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources Kunming 650031China

PtSmCo ternary metal nanoparticles(NPs)were synthesized as electrocatalysts for oxygen reduction reaction(ORR).Firstly,SmCo NPs were prepared by potentiostatic electrodeposition in ionic liquids(ILs),and the average particle diameter of SmCo NPs corresponds to about 238 nm(-0.65 V),72 nm(-0.75 V)and 45 nm(-0.85 V),***,displacement and reductions of SmCo NPs occur in the K2 PtCl4 and L-ascorbic acid sodium with about 3 nm of Pt NPs which grow on the surface of SmCo NPs to form PtSmCo ternary metal *** of cycle voltammetry(CV)and line sweep voltammetry(LSV)indicate that the electrocatalytic property for ORR generates a decreasing order of commercial Pt/C>PtSmCo0.85>PtSmCo0.75>*** durability testing(ADT)after 10000 cycles shows that PtSmCo0.85 NPs electrocatalyst decreases by-40%in electrochemical active surface areas(ECSA),the half-wave potential(E1/2)only negatively shifts by 14 mV and decreases by^13.6%in mass activity(MA).When compared with JM Pt/C,where it decreases by^49%in ECSA,E1/2 is negatively shifted by 40 mV and decreased by^50%in ***,PtSmCo0.85 NPs electrocatalyst is more stable than JM Pt/C.

关键词： Rare earth metal Electrodeposition Ionic liquid Electrocatalyst Stability

Electrochemical and electrochromic properties of P(carbazole-EDOT)Derivatives and its copolymer film with EDOT units

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Electrochemical and electrochromic properties of P(carbazole...

Environmental concentration of ammonia nitrogen induced marked changes in proteome of clam Ruditapes philippinarum in dose-and time-dependent manner

河南省化学会2016年学术年会

作者： Bin Hu Boshi tian jin Liu Lin jin Zhenling Wang The Key Laboratory of Rare Earth Functional Materials and Applications Zhoukou Normal University

Conductive polymers have attracted much attentions due to their potential applications in the fields of organic photovoltaics(OPVs), organic field effect transistors(OFETs), organic light-emitting diodes(OLEDs) or electrochromic devices(ECDs). As for electrochromic application, conjugated polymers possess numerous advantages such as facile synthetic access, vivid colours, fast response time environmental stability and solution processability. In this manuscript,4-[3,6-Bis-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-carbazol-9-yl]-benzoic acid ethyl ester(BCBA)was synthesized by simple chemical route, and its homopolymer and copolymer with 3,4-ethoxylene dioxy thiophene(EDOT) were obtained by electrochemical methods, and their structure and performance properties were characterized by NMR, MS, FT-IR, UV-vis spectroscopy and electrochemical station. The electrochemical results show that both the polymer display well-define electrochemical response. Spectroelectrochemical technique were performed to investigate the electrochemical and optical changes of the resulting polymer films, the bandgap of PBCBA films is found to be 2.52 eV, it can show yellow-green and purple color at different applied potentials, while P(BCBA-EDOT) films exhibit brown, green blue colors due to the existence of EDOT units, and its bandgap is 1.68 eV. What is more, both the polymer hold good optical contrast and response time,which make them potential application for ECDs.

关键词： Conductive polymers Electrochromism Carbazole

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Journal of Oceanology and Limnology 2024年第5期42卷 1634-1650页

作者： Ming CONG Zhaoshun LI Wenwen tian Yuanmei LI Jiasen LÜ School of Ocean Yantai UniversityYantai 264005China School of Life Sciences Yantai UniversityYantai 264005China

Previous studies have revealed that ammonia nitrogen has several adverse effects on clam Ruditapes ***,knowledge is lacking regarding the related proteins involved in the toxicological responses,which is vital to elucidate the underlying mechanism of ammonia *** this study,clams *** were exposed to ammonia nitrogen for 21 d at two environmentally relevant *** tandem mass tags approach(TMT)was applied to assay the differentially expressed proteins(DEPs)in clam gill tissues on the 3 rd and 21 st ***,a total of 7263 proteins were *** analyses revealed that clam protein profiles changed in dose-and time dependent manner after ammonia nitrogen *** inferred that the clams may face heavy challenges after ammonia exposure,such as unbalanced gender ratio,lysosomal disease,energy lack,neurological disorders,altered glutamine metabolism,increased lipid synthesis,and impaired *** profiles of enzyme activities of glutaminase and glutamine synthase provided direct evidence to verify the related inference from proteome *** of the inferred toxic effects merit further *** study identified important proteins related to ammonia nitrogen toxicity in the clam and indicated the severe stress of marine ammonia pollution on the healthy development of mollusc aquaculture.

关键词： ammonia nitrogen Ruditapes philippinarum proteomic analysis toxicity