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塔县帕米尔牦牛产业发展现状及对策建议

中国畜禽种业 2024年第7期20卷 48-56页

作者：孔思远孔大帅卢宇曦常荣荣李晨莹田蕴涵包鹏甲郭宪左二伟张玉波阎萍中国农业科学院深圳农业基因组研究所广东深圳518120 中国农业科学院兰州畜牧与兽药研究所甘肃兰州730050

帕米尔牦牛是塔什库尔干塔吉克自治县高原地区的主要畜牧物种,在塔县具有重要的社会经济地位。该文阐述了塔县帕米尔牦牛屠宰、泌乳、繁殖等性能与产业发展现状,指出了塔县帕米尔牦牛品种退化、繁育技术落后、配套体系不健全等问题,提... 详细信息

帕米尔牦牛是塔什库尔干塔吉克自治县高原地区的主要畜牧物种,在塔县具有重要的社会经济地位。该文阐述了塔县帕米尔牦牛屠宰、泌乳、繁殖等性能与产业发展现状,指出了塔县帕米尔牦牛品种退化、繁育技术落后、配套体系不健全等问题,提出了促进塔县帕米尔牦牛品种选育改良与产业发展的建议,以期为塔县帕米尔牦牛产业振兴与可持续发展提供理论参考。

关键词：帕米尔牦牛牦牛性能品种选育改良产业发展

Accelerated prediction of Cu-based single-atom alloy catalysts for CO_(2) reduction by machine learning

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Green Energy & Environment 2023年第3期8卷 820-830页

作者： dashuai Wang Runfeng Cao Shaogang Hao Chen Liang Guangyong Chen Pengfei Chen Yang Li Xiaolong Zou Shenzhen Geim Graphene Center Tsinghua-Berkeley Shenzhen Institute&Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China Tencent Shenzhen518054China Shenzhen Key Laboratory of Virtual Reality and Human Interaction Technology Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong Kong999077China Tsinghua-Berkeley Shenzhen Institute Tsinghua UniversityShenzhen518055China

Various strategies,including controls of morphology,oxidation state,defect,and doping,have been developed to improve the performance of Cu-based catalysts for CO_(2) reduction reaction(CO_(2)RR),generating a large amount of ***,a unified understanding of underlying mechanism for further optimization is still *** this work,combining first-principles calculations and machine learning(ML)techniques,we elucidate critical factors influencing the catalytic properties,taking Cu-based single atom alloys(SAAs)as *** method relies on high-throughput calculations of 2669 CO adsorption configurations on 43 types of Cu-based SAAs with various *** ML analyses reveal that low generalized coordination numbers and valence electron number are key features to determine catalytic *** our ML model with cross-group learning scheme,we demonstrate the model generalizes well between Cu-based SAAs with different alloying ***,electronic structure calculations suggest surface negative center could enhance CO adsorption by back donating electrons to antibonding orbitals of ***,several SAAs,including PCu,AgCu,GaCu,ZnCu,SnCu,GeCu,InCu,and SiCu,are identified as promising CO_(2)RR *** work provides a paradigm for the rational design and fast screening of SAAs for various electrocatalytic reactions.

关键词： Cu-based single-atom alloy CO adsorption Machine learning First principles CO_(2)reduction reaction

Stable and dendrite-free Zn anode with artificial desolvation interface layer toward high-performance Zn-ion capacitor

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Journal of Energy Chemistry 2022年第9期31卷 143-148,I0005页

作者： Zhe Gong Kai Jiang Pengfei Wang Xunliang Liu dashuai Wang Ke Ye Kai Zhu Jun Yan Guiling Wang Dianxue Cao Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education College of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001HeilongjiangChina School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHong Kong 999077China Senzhen Geim Graphene Center Tsinghua-Berkeley Shenzhen Institute&Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina Key Laboratory of Polymer and Catalyst Synthesis Technology of Liaoning Province School of Environmental and Chemical EngineeringShenyang University of TechnologyShenyang 110870LiaoningChina

Aqueous Zn-based energy storage devices possess tremendous advantages, such as low cost, high safety,and competitive energy density, due to employing a Zn metal anode and aqueous electrolyte. However,the cycling stability and rate ability of a Zn anode are hindered by Zn dendrite growth and sluggish ion transfer in the electrode/electrolyte interface. Herein, the interfacial properties of Zn anodes are improved through the introduction of a silver(Ag) protective layer, which facilitates uniform Zn deposition and regulates Zn ion transport. As a result, Ag-coated Zn anodes display stable cycling performance(600 h at 1 m A cm^(-2)) and low overpotential(150 mV at 50 mA cm^(-2)after 2000 cycles). The Ag layer in situ electrochemically converts into an AgZn_(3) layer and promotes Zn ion desolvation and threedimensional diffusion processes. Moreover, a Zn-ion capacitor assembled with an Ag-coated Zn anode and active carbon cathode shows a capable cycling lifespan and rate performance. This study provides a feasible strategy for constructing a stabilized and dendrite-free Zn anode for the development of high-performance Zn-based energy storage devices.

关键词： Zn ion capacitors Zn metal anodes Aqueous electrolyte Dendrite-free surface

In situ cardiac regeneration by using neuropeptide substance P and IGF-1C peptide eluting heart patches

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Regenerative Biomaterials 2018年第5期5卷 303-316页

作者： Muhammad Shafiq Yue Zhang dashuai Zhu Zongxian Zhao Dong-Hwee Kim Soo Hyun Kim Deling kong Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and TechnologySeoul 02792Republic of Korea State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Bioactive Materials of Ministry of EducationCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)College of Life ScienceNankai UniversityTianjin 300071China Center for Biomaterials Biomedical Research InstituteKorea Institute of Science and TechnologyCheongryangSeoul 130-650Republic of Korea Department of Chemistry Center for Tissue Engineering&Regenerative MedicinePakistan Institute of Engineering&Applied Sciences(PIEAS)NiloreIslamabad 45650Pakistan Department of Physiology&Pathophysiology Tianjin Medical UniversityTianjin 300070China KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul 02841Republic of Korea

Cardiovascular diseases cause huge socio-economic burden *** a mammalian myocardium has its own limited healing capability,scaffold materials capable of releasing stem cell recruiting/engrafting factors may facilitate the regeneration of the infarcted *** aim of this research was to develop cardiac patches capable of simultaneously eluting substance P(SP)and insulin-like growth factor-1C(IGF-1C)***/collagen type 1-based patches with or without SP and IGF-1C peptide were fabricated by co-electrospinning,which exhibited nanofibrous *** and IGF-1C/SP patches recruited significantly higher numbers of bone marrow-mesenchymal stem cells than that of the negative control and patch-only groups in *** developed patches were transplanted in an infarcted myocardium for up to 14 *** underwent left anterior descending artery ligation and received one of the following treatments:(i)sham,(ii)saline,(iii)patch-only,(iv)IGF-1C patch,(v)SP patch and(vi)IGF-1C/SP *** and IGF-1C/SP patch-treated groups exhibited better heart function and attenuated adverse cardiac remodeling than that of the saline,patch-only and individual peptide containing cardiac *** patch and IGF-1C/SP patch-treated groups also showed higher numbers of CD31-positive vessels and isolectin B4-positive capillaries than that of other ***-1C/SP-treated group also showed thicker left ventricular wall in comparison to the saline and patch-only ***,IGF-1C/SP patches recruited significantly higher numbers of CD29-positive cells and showed less numbers of Tunel-positive cells compared with the other *** data suggest that SP and IGF-1C peptides may act synergistically for in situ tissue repair.

关键词： cardiac patch stem cell recruitment myocardial infarction electrospinning

Photocatalytic activity of Lu^(3+)/TiO_2 prepared by ball milling method

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Journal of Rare Earths 2018年第8期36卷 819-825页

作者： Di Wu Chen Li Qiushi kong Zaifeng Shi dashuai Zhang Lili Wang Lizhi Han Xiaopeng Zhang Qiang Lin Key Laboratory of Water Pollution Treatment & Resource Reuse Hainan Normal University College of Chemistry and Chemical Engineering Hainan Normal University

Ball milling method was applied to prepare Lu^3＋/TiO2 photocatalysts. The catalysts were characterized with X-ray powder diffraction（XRD）, X-ray photoelectron spectroscopy（XPS）, UV-visible diffuse reflectance spectra（UV-vis DRS）, energy dispersive X-ray spectrometer（EDS）, transmission electron microscopy（TEM） and Brunauer-Emmett-Teller（BET） method. The photocatalytic activities were determined by the degradation of methylene blue（MB） equipped with a 300 W medium pressure mercury lamp. Results show that the first order reaction rate constants of Lu^3＋/TiO2 and pure TiO2 are0.0565 and 0.0263 min-1, respectively, which both were evaluated under the condition of catalysts loading of 0.2 g/L,initial concentration of 25 mg/L for MB, mole ratio of Lu^3＋/TiO2 of 1.5% and milling time of 4 h. The average crystal sizes of 1.5 mol% Lu^3＋/TiO2 and pure TiO2 are 18.7 and 19.3 nm, respectively.

关键词： Ball milling method Rare earth Lutetium Titanium dioxide Methylene blue