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气候变化背景下不同类型双季稻品种生态适应性分析

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杂交水稻 2024年第4期39卷 90-98页

作者：郭夏宇李洁冰龙继锐李建武艾治勇何爱斌湖南杂交水稻研究中心湖南长沙410125 国家耐盐碱水稻技术创新中心海南三亚572000 湖南生物机电职业技术学院湖南长沙410127

气候变化影响水稻的安全稳产,气候变化背景下不同双季稻品种生态适应性研究对于保障粮食安全具有重要意义。以不同类型双季早、晚稻品种为试验材料,在澧县、长沙、祁阳3个生态点进行2 a定点试验来分析双季稻品种生态适应性差异的原因。... 详细信息

气候变化影响水稻的安全稳产,气候变化背景下不同双季稻品种生态适应性研究对于保障粮食安全具有重要意义。以不同类型双季早、晚稻品种为试验材料,在澧县、长沙、祁阳3个生态点进行2 a定点试验来分析双季稻品种生态适应性差异的原因。结果表明,年份、品种、气候条件均对双季稻产量造成影响,生育期较长的大穗型杂交稻五丰优317和Y两优911的产量分别比常规稻湘早籼45和湘晚籼17号提高了10.1%和37.9%,且Y两优911和五丰优317在不同生态区的丰产性、稳定性及综合评价最高。气象因子和双季稻产量的主成分分析结果表明,日降雨量、温度资源和日照资源是影响双季稻产量的主要因素。因此,为了适应湖南省气候变化特点,在保证安全生产的条件下,应综合考虑双季稻品种生育期搭配、地区降雨和温光资源等因素。

关键词：双季稻品种适应性气候变化气象因子

基于文献计量学的高温大曲研究进展与发展态势分析

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酿酒科技 2024年第3期 24-32页

作者：何琪沈毅张亚东尹杰兵杨伟杰刘君袁思棋王西四川轻化工大学生物工程学院四川宜宾644000 四川郎酒股份有限公司四川泸州646500

基于Web of Science核心合集数据库和中国知网学术期刊数据库(CNKI),分别从年度发文量、发文作者和机构、高引文章和关键词等角度,采用文献计量法对1980-2022年该领域共208篇中文文献和47篇英文文献进行知识图谱分析,详细阐述了高温大... 详细信息

基于Web of Science核心合集数据库和中国知网学术期刊数据库(CNKI),分别从年度发文量、发文作者和机构、高引文章和关键词等角度,采用文献计量法对1980-2022年该领域共208篇中文文献和47篇英文文献进行知识图谱分析,详细阐述了高温大曲的研究进展和该研究领域未来的发展态势。高温大曲研究是酱香型白酒品质提升的重要方面。近十年来高温大曲的文献研究总体呈现上升趋势。中国学者是发文的主力军,总发文量呈逐年上升趋势,其中WOS数据库发文量增长明显。郎酒集团、茅台集团、江南大学、中国农业大学、中国食品发酵工业研究院等单位是该领域的研究主体。通过本文综合分析,可以为白酒行业相关研究人员了解高温大曲的研究动态和研究方向、开展科研合作与学术交流提供信息帮助。

关键词：高温大曲文献计量学可视化关系图谱聚类分析

Experiments and analysis of thin tungsten slice and W/Cu brazing for primary collimator scraper in CSNS/RCS

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Science China(Physics,Mechanics & Astronomy) 2014年第4期57卷 680-683页

作者： ZOU YiQing KANG Ling YU jiebing QU HuaMin HE ZheXi Institute of High Energy Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

According to the requirements for the beam collimation system of the rapid cycling synchrotron(RCS)of China Spallation Neutron Source(CSNS),the main structure of a scraper of primary collimator is made by W/Cu brazing,in which the thickness of tungsten slice is 0.17 *** order to get the best mechanical properties,the brazing temperature is suggested to be controlled under the recrystallization temperature of tungsten,while the recrystallization temperature is affected directly by the thickness of *** of little research and application on the brazing of thin tungsten slice of 0.17 mm and copper,tensile tests are done to get the mechanical properties of tungsten slices which experience different brazing *** keeping the inner relationships between the mechanical properties and temperature,another experiment is done by using SEM to scan the microstructures including the size and distribution of *** we determine the recrystallization temperature of tungsten slice of 0.17 mm,and get the best parameters of W/Cu brazing for scrapers of primary collimator in CSNS/RCS.

关键词： scraper of primary collimator of CSNS/RCS W/Cu brazing mechanical properties of thin tungsten slice recrystallization temperature of thin tungsten slice SEM scanned images

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大口径球面镜透过率测量系统控制技术

激光与光电子学进展 2024年第17期61卷 198-205页

作者：王佳豪于信白素平韩佳昊王杏月贺国强韩洁冰长春理工大学光电工程学院

由于高能激光系统中光学元件对于系统探测距离、毁伤能力以及能量损耗程度等参数都可以通过测量透过率来评估，采用共光路复合位移同步扫描技术，通过逐点扫描的方式实现对大口径元件透过率的测量。通过扫描圆周和径向的复合位移，控制... 详细信息

由于高能激光系统中光学元件对于系统探测距离、毁伤能力以及能量损耗程度等参数都可以通过测量透过率来评估，采用共光路复合位移同步扫描技术，通过逐点扫描的方式实现对大口径元件透过率的测量。通过扫描圆周和径向的复合位移，控制上下机械扫描结构，结合振镜对光路的校准，从而实现全口径快速扫描。实验结果表明，所提方法测得光学元件透过率的测量精度为0.2%，测量口径最大600 mm，测量速度大于500 h-1，满足技术指标的要求，实现了对大口径激光元件透过率的高精度测量。

关键词：大口径球面镜透过率复合位移同步控制

Pretreatment of cyanided tailings by catalytic ozonation with Mn^(2+)/O^3

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Journal of Environmental Sciences 2015年第2期27卷 14-21页

作者： Yulong Li Dengxin Li jiebing Li Jin wang Asif Hussain Hao Ji Yijie Zhai College of Environmental Science and Engineering State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry Donghua University

The increasing amount of cyanided tailings produced as a by-product has gained significant attention in recent years because of the rapid development of the gold industry and extensive exploitation of gold mineral resources. The effective use of these secondary resources is becoming an important and urgent problem for all environmental protection staff. Manganese-catalyzed ozonation for the pre-oxidation of cyanided tailings was studied and the effects of Mn2＋dosage, initial sulfuric acid concentration, ozone volume flow, temperature and agitation speed on pretreatment were examined. The optimum reaction conditions were observed to be： ore pulp density 2.5%, agitation speed 700 r/min,temperature 60°C, Mn2＋dosage 40 g/L, ozone volume flow 80 L/hr, initial sulfuric acid concentration 1 mol/L, and reaction time 6 hr. Under these conditions, the leaching rate of Fe and weight loss could reach 94.85% and 48.89% respectively. The leaching process of cyanided tailings by Mn2＋/O3 was analyzed, and it was found that the leaching of pyrite depends on synergetic oxidation by high-valent manganese and O3, in which the former played an important part.

关键词： Cyanided tailings Pretreatment Mn2+/O3 Catalytic ozonation

Influence of strain rate on grain refinement and texture evolution under complex shear stress conditions

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镁合金学报(英文) 2023年第7期11卷 2558-2584页

作者： Zhaocan Li Guoqin Wu Jianmin Yu jiebing Wang Jingjing Han Huiyong Cui Zhimin Zhang College of Materials Science and Engineering North University of China3 Xueyuan RoadTaiyuan 030051China Science and Technology on Space Physics Laboratory China Academy of Launch Vehicle TechnologyBeijing 100076China

The effects of different complex shear stress conditions on grain refinement and texture evolution of Mg-13Gd-4Y-2Zn-0.5Zr alloy were *** increasing strain rate,the average grain size of compression-shear(CS)and compression-torsion(CT)samples are decreased,and the grain size of dynamic recrystallization(DRX)grains is also *** is because that the precipitation number ofβphases is increased,and the hindering effect on grain growth can be significantly *** DRX fractions of CS and CT samples are decreased with increased strain *** low DRX fraction at high strain rate is related to the insufficient time for grains to *** DRX process can be promoted by the PSN mechanism of second phases,and the grain growth can be restricted by the pinning *** the same time,the texture strength is enhanced as the strain rate ***,the kinking degree of lamellar long-period stacking ordered(LPSO)phases is *** complex shear stress conditions,non-basal slip,especially pyramidal slip,is easily activated and the texture is deflected *** with the CS samples,CT samples have smaller average grain size,higher DRX fraction,and lower texture strength for a certain strain *** is because that the equivalent stress of the CT sample is larger,the stress triaxiality is smaller,so more serious dislocations are piled up near grain boundaries and second *** the same time,since CT sample was sheared with torsion,the dislocation movement path can be called“rotational dislocation accumulation”,and the longer distribution path of the CT sample is generated,so more sub-grains and low-angle grain boundaries(LAGBs)are *** with the CS sample,more huge-angle grain boundaries(HAGBs)and DRX grains are formed from grain boundary to grain interior,so better grain refinement effect is achieved.

关键词： Simple shear Compression-shear Compression-torsion Grain refinement Texture evolution ASB

Advances and prospects of drug clinical research in colorectal cancer in 2022

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Cancer Innovation 2023年第2期2卷 99-113页

作者： Dan Su Chao Liu Jie Cui jiebing Tang Yuli Ruan Yanqiao Zhang Department of Gastrointestinal Medical Oncology Harbin Medical University Cancer HospitalHarbinHeilongjiang ProvinceChina Clinical Research Center for Colorectal Cancer in Heilongjiang Harbin Medical University Cancer HospitalHarbinHeilongjiang ProvinceChina

Colorectal cancer(CRC)is the third most common cancer and the second leading cause of cancer death *** research results have provided more treatment opportunities for CRC patients,showing that an optimal combination of existing drugs and new drugs is needed to mitigate the burden of this *** this review,we have summarized recent advances in drug clinical research for CRC in 2022,including chemotherapy,targeted therapy,and immunotherapy,to find opportunities for substantial improvements in drug discovery and clinical development methods.

关键词： colorectal cancer chemotherapy targeted therapy immunotherapy

LDHs/LLDPE复合薄膜的制备及保温性能研究

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化工新型材料 2024年第6期52卷 78-82页

作者：袁华金成晓玲刘源周恩国赵文林何洁冰熊晓燕广东工业大学轻工化工学院广州510006 呈和科技股份有限公司广州510445 化学与精细化工广东省实验室揭阳分中心(榕江实验室) 揭阳515200 广东省科学院工业分析检测中心广州510650

采用共沉淀法合成锌铝硝酸根型水滑石(ZnAl-NO_(3)-LDH),通过阴离子交换法将乙二胺四甲叉膦酸四钠(EDTMPS4Na)插层到ZnAl-NO_(3)-LDH中得到乙二胺四甲叉膦酸根插层水滑石(EDTMPS-LDH),使用硅烷偶联剂KH570对其进行表面改性得到类水滑石(... 详细信息

采用共沉淀法合成锌铝硝酸根型水滑石(ZnAl-NO_(3)-LDH),通过阴离子交换法将乙二胺四甲叉膦酸四钠(EDTMPS4Na)插层到ZnAl-NO_(3)-LDH中得到乙二胺四甲叉膦酸根插层水滑石(EDTMPS-LDH),使用硅烷偶联剂KH570对其进行表面改性得到类水滑石(LDHs)。将LDHs与线性低密度聚乙烯(LLDPE)共混,通过挤出吹塑得到LDHs/LLDPE复合薄膜。采用多通道温度测量仪进行保温实验,测试LDHs/LLDPE复合薄膜的保温性能。结果表明:EDTMPS4Na插入ZnAl-NO_(3)-LDH层间,拓宽了ZnAl-NO_(3)-LDH的红外吸收范围,从7~25μm波段无明显红外吸收扩展到9~11μm波段具有明显选择性红外吸收;与ZnAl-NO_(3)-LDH相比,EDTMPS-LDH提高了ZnAl-NO_(3)-LDH的稳定性,添加LDHs比未添加LDHs的LLDPE复合薄膜白天棚内温度下降4%~15%,夜晚温度提高4%~17%,改善了LLDPE薄膜的保温性能。

关键词：水滑石乙二胺四甲叉膦酸四钠改性复合薄膜保温性能

Promoting Inheritance and Development of TCM Culture

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中国新闻发布(英文版) 2023年第7期 64-66页

作者： Ling jiebing Cao Jian Zhang Zhongjing Museum

Being the birthplace of medical sage Zhang Zhongjing,a famous Chinese pharmacologist and physician of the Eastern Han Dynasty (25-220),Nanyang in central China’s Henan Province has long been famed for its traditional Chinese medicine (TCM) *** May 12,2021,President Xi Jinping visited the Memorial Temple to the Medical Sage Zhang Zhongjing,which was renamed Zhang Zhongjing Museum in October2021,during an inspection trip to Nanyang,when he called for efforts to further develop TCM."Traditional Chinese medicine contains the Chinese nation’s health philosophies and practical experience for thousands of years,and thus is a great creation of the people and a treasure of ancient Chinese science,"said *** also stressed thesignificance of using modern science to interpret the principles of traditional Chinese medicine and integrating Chinese and Western medicines to advance the traditional medical practice.

关键词： integrating Eastern inspection