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添加不同比例啤酒糟对育肥山羊生长性能、血清生化指标、屠宰性能和肉品质的影响

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江苏农业学报 2024年第3期40卷 500-507页

作者：王应归杨献康李鹏程訾云秀赵旺生朱江江青藏高原动物遗传资源保护与利用四川省重点实验室/西南民族大学四川成都610041 西南科技大学生命科学与工程学院四川绵阳621010

本研究旨在探究山羊日粮中添加不同比例啤酒糟对育肥山羊生长性能、血清生化指标、屠宰性能和肉品质的影响。随机选取24只身体状况良好、体质量相近的3月龄简州大耳羊羯羊,分为4组,分别饲喂添加0、42.90%、48.00%、53.00%啤酒糟的日粮... 详细信息

本研究旨在探究山羊日粮中添加不同比例啤酒糟对育肥山羊生长性能、血清生化指标、屠宰性能和肉品质的影响。随机选取24只身体状况良好、体质量相近的3月龄简州大耳羊羯羊,分为4组,分别饲喂添加0、42.90%、48.00%、53.00%啤酒糟的日粮。试验周期为70 d,其中预饲期14 d,正式期为56 d。结果表明,与对照相比,在日粮中添加48.00%啤酒糟处理的山羊只均经济利润显著提高,并且该处理对血清生化指标、屠宰性能和内脏指标无不利影响,还在一定水平上改善了山羊肉品质。综上所述,本研究条件下,在简州大耳羊羯羊日粮中添加啤酒糟的最适比例为48.00%。

关键词：啤酒糟简州大耳羊屠宰性能肉品质血清生化指标生长性能

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Hydrocarbon generation history constrained by thermal history and hydrocarbon generation kinetics:A case study of the Dongpu Depression,Bohai Bay Basin,China

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Petroleum Science 2022年第2期19卷 472-485页

作者： Mei-Hua yang Yin-Hui Zuo kang-Nan Yan Yong-Shui Zhou yun-Xian Zhang Cheng-Fu Zhang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengduSichuan 610059China Energy&Geoscience Institute University of UtahSalt Lake CityUT84108USA Research Institute of Exploration and Development Zhongyuan OilfieldSINOPECPuyangHenan 457001China

With the increasing exploration and development of typical hydrocarbon-rich depressions,such as the Dongpu Depression,the exploitation difficulty of shallow formations is *** is an urgent need to clarify the hydrocarbon generation mode and hydrocarbon generation histories in deep *** this study,a gold tube-autoclave closed system was used to simulate the hydrocarbon generation processes and establish the hydrocarbon generation mode of different types of ***,constrained by the thermal history and hydrocarbon generation kinetics,hydrocarbon generation histories were *** results show that hydrocarbon generation evolution can be divided into five stages,and the maturity of each stage is *** hydrocarbon generation history of the source rocks of the Shahejie 3 Formation mainly dates from the early depositional period of the Shahejie 1 Formation to the middle depositional period of the Dongying *** generation history constrained by thermal history and hydrocarbon generation kinetics is more in line with actual geological ***,this research can provide important hydrocarbon generation parameters for deep oil and gas exploration and exploitation of the Shahejie 3 Formation in the Dongpu Depression.

关键词： Dongpu depression Thermal history Hydrocarbon generation kinetics Hydrocarbon generation mode Hydrocarbon generation history

Microstructural developments and precipitate transformation during transient liquid-phase bonding of a duplex stainless steel

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Journal of Central South University 2013年第1期20卷 15-23页

作者：袁新建 kang Chung-yun College of Materials Science and Engineering Chongqing University Department of Materials Science and Engineering Pusan National University

Effect of holding time on microstructural developments and transformation of precipitates formed at the interface during transient liquid-phase bonding of a duplex stainless steel using a Ni-based amorphous insert alloy was studied. The experimental results reveal that the microstructure of the adjacent base metal varies clearly as a function of holding time. The migration of Cr and Ni elements and the → transformation seem to play relevant roles in this microstructure evolution. The scanning electron microscopy (SEM) and electron prob X-ray microanalysis (EPMA) results indicate the transformation of BN→BN and (N, Mo) boride→BN at the interface with the holding time of 60-1 800 s. N content changes with holding time increasing at locations at the interface might be a controlling factor contributing to this transformation.

关键词： transient liquid-phase bonding duplex stainless steel microstructural development precipitate transformation

Aerosol-assisted rapid synthesis of SnS-C composite microspheres as anode material for Na-ion batteries

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Nano Research 2015年第5期8卷 1595-1603页

作者： Seung Ho Choi yun Chan kang Department of Materials Science and Engineering Korea University Anam-Dong Seongbuk-Gu Seou1136-713 Republic of Korea

SnS-C composite powders were prepared through one-pot spray pyrolysis for use as anode materials for Na-ion batteries. C microspheres with uniformly attached cubic-like SnS nanocrystals, which have an amorphous C coating layer, were formed at a preparation temperature of 900 ℃. The initial discharge capacities of the bare SnS and SnS-C composite powders at a current density of 500 mA·g^-1 were 695 and 740 mA·h·g^-1, respectively. The discharge capacities after 50 cycles and the capacity retentions measured from the second cycle of the bare SnS and SnS-C composite powders were 25 and 433 mA.h.g-1 and 5 and 89%, respectively. The prepared SnS-C composite powders with high reversible capacities and good cycle performance can be used as Na-ion battery anode materials.

关键词： tin sulfide anode material carbon composite sodium battery energy storage

Prediction of Melt Pool Dimension and Residual Stress Evolution with Thermodynamically-Consistent Phase Field and Consolidation Models during Re-Melting Process of SLM

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Computers, Materials & Continua 2021年第1期66卷 87-112页

作者： kang-Hyun Lee Gun Jin yun Department of Aerospace Engineering Seoul National UniversitySeoul08826South Korea Institute of Advanced Aerospace Technology Seoul National UniversitySeoul08826South Korea

Re-melting process has been utilized to mitigate the residual stress level in the selective laser melting(SLM)process in recent ***,the complex consolidation mechanism of powder and the different material behavior after the first laser melting hinder the direct implementation of the re-melting *** this work,the effects of re-melting on the temperature and residual stress evolution in the SLM process are investigated using a thermo-mechanically coupled finite element *** degree of consolidation is incorporated in the energy balance equation based on the thermodynamically-consistent phase-field *** drastic change of material properties due to the variation of temperature and material state is also *** the proposed simulation framework,the single-track scanning is simulated first to predict the melt pool dimension and validate the proposed model with the existing experimental *** obtained thermal histories reveal that the highest cooling rate is observed at the end of the local solidification time which acts as an important indicator for the alleviation of temperature ***,the scanning of a whole single layer that consists of multiple tracks is simulated to observe the stress evolution with several re-melting *** the full melting of powder material in the first scanning process,the increase of residual stress level is observed with one remelting ***,the predicted stress level with the re-melting process shows the variation trend attributable to the accumulated heat in the *** numerical issues and the detailed implementation process are also introduced in this paper.

关键词： Selective laser melting thermo-mechanical analysis Ti-6Al-4V additive manufacturing re-melting residual stress

Unsymmetric Side Chains of Indacenodithiophene Copolymers Lead to Improved Packing and Device Performance

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高分子科学：英文版 2020年第4期38卷 342-348,I0005页

作者： Ying yang Tong Shan Jian Cao Hua-Chun Wang Ji-kang Wang Hong-Liang Zhong yun-Xiang Xu College of Polymer Science&Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai200240China

Two conjugated polymers(PulDTBD and PulDTQ)with un symmetric side chai ns have been prepared for polymer solar cells using two other polymers(PIDTBD and PIDTQ)with symmetric side chains as control *** combi nation of methyl a nd 4-hexylphenyl side chai ns on the same bridged carb on can en sure good solubility,decrease tt-tt stacking dista nces,and bring proper miscibility with PC71BM ***,the corresp on ding polymer solar cells(PSCs)based on donor polymers with un symmetric side chains exhibited enhanced short-circuit current density(■)and power conversion efficiency(PCE)compared with those of control *** PIDTBD and PIDTQ based devices possessed low PCE of 2.13%and 1.48%,while PCEs of devices based on PulDTBD and PulDTQ were improved to 3.93%and 4.12%,*** results demonstrate that unsymmetric side chain engineering of conjugated polymers is an effective approach to achieve high performance PSCs.

关键词： Polymer solar cell Indacenodithiophene Side-chain engineering Unsymmetric

深冷轧制变形对新型Ni-W-Co-Ta高密度合金显微组织与性能的影响

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Transactions of Nonferrous Metals Society of China 2024年第4期34卷 1214-1225页

作者：舒康豪熊毅厉勇岳赟陈正阁查小琴韩顺王春旭河南科技大学材料科学与工程学院洛阳471023 有色金属新材料与先进加工技术省部共建协同创新中心洛阳471023 钢铁研究总院特殊钢研究所北京100081 西北核技术研究所激光与物质相互作用国家重点实验室西安710024 中国船舶重工集团第725研究所洛阳471000

采用熔炼-浇铸-锻造流程制备新型Ni-W-Co-Ta高强度合金,并对Ni-W-Co-Ta合金经深冷轧制变形后的显微组织及力学性能演变规律进行表征。结果表明:随着变形量的增加,新型Ni-W-Co-Ta高密度合金中等轴晶粒沿轧制方向不断被拉长,同时产生大量... 详细信息

采用熔炼-浇铸-锻造流程制备新型Ni-W-Co-Ta高强度合金,并对Ni-W-Co-Ta合金经深冷轧制变形后的显微组织及力学性能演变规律进行表征。结果表明:随着变形量的增加,新型Ni-W-Co-Ta高密度合金中等轴晶粒沿轧制方向不断被拉长,同时产生大量的滑移带以协调剧烈的塑性变形,并最终形成纤维组织。变形量的增大导致位错密度急剧增大,位错交互作用显著加强,进而使晶粒尺寸细化至纳米量级;合金强度、硬度随着变形量的增加而显著提高,伸长率则急剧下降。断口形貌则由韧性断裂(未变形)向准解理-韧性混合型断裂转变(90%变形量)。

关键词： Ni-W-Co-Ta高密度合金深冷轧制纤维组织力学性能准解理-韧性混合型断裂

基于UHPLC-Q-Orbitrap/MS鉴定当归四逆颗粒化学成分

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质谱学报 2024年第3期45卷 432-446,I0005页

作者：郭倩池王康宇张龄月郭云龙贡济宇高文义长春中医药大学药学院吉林长春130117

本研究运用超高效液相色谱-四极杆-静电场轨道阱质谱(UHPLC-Q-Orbitrap/MS)技术快速鉴定当归四逆颗粒的化学成分。采用SUPELCO C18色谱柱(100 mm×4.6 mm×2.7μm),以0.1%甲酸水溶液-乙腈为流动相进行梯度洗脱,正、负离子模式下采集数... 详细信息

本研究运用超高效液相色谱-四极杆-静电场轨道阱质谱(UHPLC-Q-Orbitrap/MS)技术快速鉴定当归四逆颗粒的化学成分。采用SUPELCO C18色谱柱(100 mm×4.6 mm×2.7μm),以0.1%甲酸水溶液-乙腈为流动相进行梯度洗脱,正、负离子模式下采集数据。根据精确质荷比和二级质谱碎片离子信息,结合相关文献快速鉴定当归四逆颗粒的成分,并对化合物的药味来源进行归属。结果表明,在正、负离子模式下,分别从当归四逆颗粒鉴定出34、38种化合物,其中包括20种黄酮类、15种有机酸类、11种皂苷类、9种萜类、5种苯酞类、1种苯丙素类、1种醛类、1种核苷类、1种木脂素类及8种其他类化合物。本研究可为阐释当归四逆颗粒的药效物质基础提供依据。

关键词：经典名方当归四逆颗粒超高效液相色谱-四极杆-静电场轨道阱质谱(UHPLC-Q-Orbitrap/MS) 化学成分裂解规律

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Elastic scattering of ^(13)C and ^(14)C isotopes on a ^(208)Pb target at energies of approximately five times the Coulomb barriers

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Chinese Physics C 2024年第3期48卷 65-71页

作者：杨过段芳芳王康杨彦云孙志宇 Valdir Guimarães 庞丹阳陈文棣金磊许世伟马军兵马朋白真汪凌昊刘泉王惠仁吕冰锋郭松 Mukhi Kumar Raju 王秀华李荣华张玉虎周小红胡正国徐瑚珊 CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100080China Instituto de Física Universidade de São PauloRua do Matão1371São Paulo 05508-090SPBrazil School of Physics and Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics Science and Engineering Tongji UniversityShanghai 200092China School of physics and Optoelectronic Engineering Anhui UniversityHefei 230601China Department of Physics GITAM School of ScienceGITAM UniversityVisakhapatnam 530045India

The elastic scattering angular distributions of ^(13)C at 340 MeV and ^(14)C at 294 MeV and 342 MeV on a ^(208)Pb target,which correspond to approximately five times the Coulomb barriers,were measured at the Radioactive Ion Beam Line in *** data were analyzed within the optical model and continuum-discretized coupled-channels(CDCC)framework,and the results of both calculations could effectively account for the experimental *** differential cross sections of elastic scattering revealed no particular suppression at the Coulomb nuclear interference peak angles,suggesting that the breakup coupling effects on the elastic scattering angular distributions were negligibly small in this incident energy *** contributions from the couplings with inelastic states to the elastic cross sections were of minor importance within the angular range covered by these experiments.

关键词： elastic scattering radioactive ion beam angular distribution optical model coupling effects