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Full Mechanized Production Technology for Double-Low Rapeseed in xianning City

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Asian Agricultural Research 2017年第6期9卷 84-85,88页

作者： Shengwu XU An’an YU Li ZHENG Wenjuan xia Shisheng SHI xia WEI yunfei GONG xiaoping LIU xianning Academy of Agricultural Sciences Agricultural Bureau of xian’an District of xianning City

This paper standardizes the operation of rapeseed production including variety choosing,field preparation,mechanical seeding,field management,mechanical harvesting etc.,to realize full mechanization of rapeseed production. The key technologies: the optimum sowing date was from mid-September to mid-October in rapeseed-rice（corn） double cropping system region,and from mid-October to late October in rapeseed-rice-rice triple-cropping region; seeding rate was 4. 5 kg/ha-6. 0 kg/ha; the optimum density was 450000-750000 plants per ha;150-240 kg N fertilizer,60-90 kg P2O5 fertilizer,90-135 kg K2O fertilizer and 7. 5-15 kg B fertilizer were used per ha,50% of N fertilizer and the rest of fertilizer were used as basal fertilizer; segmented harvesting was done when 70%-80% of siliques per plant was yellow and combined harvesting was done when more than 90% of siliques per plant was yellow or brown.

关键词： Double-low rapeseed Full mechanization Production technology

Geochemical characteristics and provenance analysis of Lower Jurassic Badaowan Formation in Changji area of Xinjiang,China

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Global Geology 2023年第2期26卷 74-97页

作者： LIU Zhanjin xia Zhaode LIU Yunhua DU Jinhua WANG Shuo ZHANG yunfei GAO Jinghui College of Earth Sciences and Resources Chang’an UniversityXi’an 710054China PetroChina Changqing Oilfield South Sulige Operating Company Xi'an 710018China Sino Shaanxi Nuclear Industry Group 214 Brigade Co.Ltd Xi’an 710054China

Based on the field survey of Lower Jurassic Badaowan Formation(Fm.)in Changji area of Xinjiang,China,the authors studied the sedimentary environment and provenance characteristics using the analyses of stratigraphic profiles,sedimentary structures,petrography,zircon U-Pb chronology and *** results show that Badaowan *** in fluvial to swamp shallow-deeplacustrine sedimentary facies *** of Sr and ratios of Sr/Cu,Sr/Ba,Th/U,SiO_(2)/Al_(2)O_(3),V/(V+Ni),V/Cr,and Cu/Zn together indicate that Badaowan *** deposited in an oxygen-poor transitional freshwater environment,under humid climatic *** characteristics and Q–F–L,Qm–E–Lt,Th–Co–Zr/10,La–Th–Sc,and Th–Sc–Zr/10 discrimination diagrams indicate that the tectonic setting of the source area was a continental island arc *** composition,Th/U ratios,and Co/Th–La/Sc,La/Th–Hf,and La/Yb–REE discrimination diagrams show that the source rocks of Badaowan *** upper-crust felsic volcanic rocks.U-Pb dating of detrital zircons yields ages of 1542.3±15.0 to 232.9±3.3 Ma and mostly in the ranges of 470–410 and 370–280 Ma.A comparison of these ages with the age data from different blocks of crystalline rock in Tianshan Mountains area reveals that the sedimentary rocks in the Badaowan *** sourced predominantly from the central and subordinately from the southern Tianshan Mountains during Early Jurassic.

关键词： Junggar Basin Badaowan Fm. geochemistry zircon U-Pb age provenance tectonic setting

东亚与南亚雨季对流和层云降水云内的温湿结构特征分析

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大气科学 2016年第3期40卷 563-580页

作者：夏静雯傅云飞中国科学技术大学地球与空间科学学院合肥230026 宁波市鄞州区气象局宁波315194

为认知降水云内的大气温湿结构特点,本文利用1998至2012年热带测雨卫星的测雨雷达(TRMM PR)和全球探空数据集(IGRA)的探测结果,融合计算获得了一套大气温湿廓线和降水廓线的准时空同步资料,并利用该融合资料研究了雨季东亚和南亚降水云... 详细信息

为认知降水云内的大气温湿结构特点,本文利用1998至2012年热带测雨卫星的测雨雷达(TRMM PR)和全球探空数据集(IGRA)的探测结果,融合计算获得了一套大气温湿廓线和降水廓线的准时空同步资料,并利用该融合资料研究了雨季东亚和南亚降水云内的温湿结构和不稳定能量特点。个例研究结果表明深厚对流降水表现出整层大气湿润、高空风速小的特点,层云降水则表现出850 h Pa以下大气湿润、水汽随高度升高显著减少、高空风速大的特点。统计结果表明东亚季风区降水强度更大,对流和层云降水的回波顶高度分别可达17 km和12km;南亚季风区降水强度较弱,回波顶高度比东亚约低1 km;统计结果还表明南亚季风区对流活动受季风推进的影响显著。两个季风区降水云团内的温度结构差异主要出现在近地面,南亚的近地面温度比东亚约高4°C,南亚对流降水云内的大气较东亚更干燥;整个雨季南亚降水的对流有效位能(CAPE)要大于东亚。本研究结果为模式模拟降水云温湿结构提供了观测依据。

关键词：星载测雨雷达资料探空资料融合降水廓线温湿廓线

Impact of PM Size Distribution on Aerosol Optical Properties in Different Pollution Levels in Guangzhou, China

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Impact of PM Size Distribution on Aerosol Optical Properties...

Inhibition of MALT1 paracaspase activity improves lesion recovery following spinal cord injury

第十八届中国科协年会——分12 大气雾霾及PM2.5控制先进技术研讨会

作者： Yunjie xia Renjian ZHANG Jun TAO yunfei WU Shuanglin LI Chengdu University of Information Technology Institute of Atmosphere Physics Chinese Academy of Science South China Institute of Environmental Sciences Ministry of Environment Protection

To evaluate the impact of PM size distribution on aerosol properties, PM and PM samples were collected and aerosol scattering coefficients(bsp) were measured synchronously at urban site in Guangzhou, during the typical summer and winter periods. The excellent, good, lightly polluted, moderately polluted and heavily polluted days based on PM mass were categorized, according to China’s Air Quality Index(AQI)(HJ633-2012). Bsp at 550 nm were 88.5±13.0 Mm(excellent), 186.4±60.4 Mm(good), 384.1±83.8 Mm(lightly polluted), 588.8±84.0 Mm(moderately polluted) and 757.6±97.4(heavy polluted), which were 1.3-1.9 times of those in summer period. PM and PM accounted for 58.7% and 41.3%, respectively, of the bsp during the summer period. However, the contribution of PM to bsp was 2 times of PM in winter(65.2% and 34.8%). Among the different types of pollution, the contribution of chemical composition to aerosol properties reflected differences in different size ranges. In summer, as pollution aggravated, the contribution of OM to bsp in PM down from 34.2% to 26.4%, and(NH)SO became the predominant factor(accounted for 35.5%). The contribution of(NH)SO in PM was slightly larger than that of OM during slightly polluted, while high polluted in opposite.

关键词： PM size distribution Aerosol scattering coefficient Aerosol chemical composition

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Science Bulletin 2019年第16期64卷 1179-1194页

作者： Hua Zhang Guodong Sun xiaowei Li Zhen Fu Chengbin Guo Guangchao Cao Baocheng Wang Qian Wang Shuxian Yang Dehai Li Xichun xia Peng Li Jing Zhu Wei Zhou Liangyan Zheng Jingxia Li Lei Zhang Jianlei Hao Libing Zhou Frederic Bornancin Zhizhong Li Zhinan Yin yunfei Gao The First Affiliated Hospital Biomedical Translational Research Institute and School of PharmacyJinan UniversityGuangzhou 510632China Department of Orthopedics First Affiliated HospitalJinan UniversityGuangzhou 510632China Shandong Provincial Qianfoshan Hospital Shandong First Medical UniversityJinan 250014China Guangdong-Hongkong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhou 510632China Novartis Institutes for BioMedical Research CH-4002 BaselSwitzerland Department of Orthopedics Heyuan People’s Hospital(Heyuan Affiliated Hospital of Jinan University)Heyuan 517199China State Key Laboratory of Biotherapy Collaborative Innovation Center for BiotherapyWest China HospitalSichuan UniversityChengdu 610041China

Spinal cord injury(SCI) is a devastating traumatic injury that causes persistent, severe motor and sensory dysfunction. Immune responses are involved in functional recovery after SCI. Mucosa-associated lymphoid tissue lymphoma translocation 1(MALT1) has been shown to regulate the survival and differentiation of immune cells and to play a critical role in many diseases, but its function in lesion recovery after SCI remains unclear. In this paper, we generated KI(knock in) mice with a point mutation(C472 G) in the active center of MALT1 and found that the KI mice exhibited improved functional recovery after *** macrophages were recruited to the injury site in KI mice and these macrophages differentiated into anti-inflammatory macrophages. Moreover, macrophages from KI mice exhibited reduced phosphorylation of p65, which in turn resulted in decreased SOCS3 expression and increased pSTAT6 *** results were obtained upon inhibition of MALT1 paracaspase with the small molecule inhibitor‘‘MI-2' or the more specific inhibitor ‘‘MLT-827'. In patients with SCI, peripheral blood mononuclear cells(PBMC) displayed increased MALT1 paracaspase. Human macrophages showed reduced proinflammatory and increased anti-inflammatory characteristics following the inhibition of MALT1 paracaspase. These findings suggest that inhibition of MALT1 paracaspase activity in the clinic may improve lesion recovery in subjects with SCI.

关键词： Anti-inflammatory macrophage Pro-inflammatory macrophage Spinal cord injury NF-j B MALT1 paracaspase activity

Design of a Novel Semi-Automatic Coconut Tree Climbing Device

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World Journal of Engineering and Technology 2018年第3期6卷 8-14页

作者： Yongfeng Liu Jie Gong Yanyun Lin Fan Zhang Hui Huang Wen xia Yijun Liu yunfei Fu College of Mechanical Engineering Liaoning Technical University Fuxin China Agricultural Product Processing Research Institute at Chinese Academy of Tropical Agricultural Sciences Chinese Agricul-tural Ministry Key Laboratory of Tropical Crop Products Processing Zhanjiang China

The aim of this study is to present a novel semi-automatic coconut tree climbing device and validate its strength based on actual working conditions. Firstly, the structural composition and operational principal of this device is introduced. After that, the finite element model of this device is established with CATIA. Finally, the strength analysis is executed by means of CATIA. In this study, the equivalent stress, principal stress, and displacement contours are obtained. The simulation results show that the maximum stress of this device is below 355 MPa, which is the value of the yield strength. Therefore, this device is capable of satisfying practical application requirements.

关键词： Agricultural Mechanization Coconut Tree Climbing Device Finite Element Method Static Strength Analysis

Anticarin-β shows a promising antiosteosarcoma effect by specifically inhibiting CCT4 to impair proteostasis

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Acta Pharmaceutica Sinica B 2022年第5期12卷 2268-2279页

作者： Gan Wang Min Zhang Ping Meng Chengbo Long xiaodong Luo Xingwei Yang yunfei Wang Zhiye Zhang James Mwangi Peter Muiruri Kamau Zhi Daic Zunfu Ke Yi Zhang Wenlin Chen Xudong Zhao Fei Ge Qiumin Lv Mingqiang Rong Dongsheng Li Yang Jin xia Sheng Ren Lai Key Laboratory of Animal Models and Human Disease Mechanisms Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan ProvinceKIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesNational Resource Center for Non-Human PrimatesKunming Primate Research Centerand National Research Facility for Phenotypic&Genetic Analysis of Model Animals(Primate Facility)Kunming Institute of ZoologyKunming 650107China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Institutes for Drug Discovery and Development Chinese Academy of SciencesShanghai 201203China Sino-African Joint Research Center Chinese Academy of ScienceWuhan 430074China Department of Pathology First Afﬁliated HospitalSun Yat-sen UniversityGuangzhou 510080China Department of Orthopaedic Surgery First Afﬁliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of Breast Surgery Third Afﬁliated Hospital of Kunming Medical UniversityYunnan Cancer CenterKunming 650118China Department of Breast Surgery First Afﬁliated Hospital of Kunming Medical UniversityKunming 650032China Department of Biosciences University of OsloOslo 0316Norway Key Laboratory of Environment and Health Ministry of Education&Ministry of Environmental ProtectionAnd State Key Laboratory of Environmental HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 434000China Center for Biosafety Mega-Science Chinese Academy of SciencesWuhan 430071China

Unlike healthy, non-transformed cells, the proteostasis network of cancer cells is taxed to produce proteins involved in tumor development. Cancer cells have a higher dependency on molecular chaperones to maintain proteostasis. The chaperonin T-complex protein ring complex(TRiC) contains eight paralogous subunits(CCT1-8), and assists the folding of as many as 10% of cytosolic *** is essential for the progression of some cancers, but the roles of TRiC subunits in osteosarcoma remain to be explored. Here, we show that CCT4/TRiC is significantly correlated in human osteosarcoma,and plays a critical role in osteosarcoma cell survival. We identify a compound anticarin-β that can specifically bind to and inhibit CCT4. Anticarin-β shows higher selectivity in cancer cells than in normal cells. Mechanistically, anticarin-β potently impedes CCT4-mediated STAT3 maturation. Anticarin-β displays remarkable antitumor efficacy in orthotopic and patient-derived xenograft models of ***, our data uncover a key role of CCT4 in osteosarcoma, and propose a promising treatment strategy for osteosarcoma by disrupting CCT4 and proteostasis.

关键词： Proteostasis CCT TRiC Osteosarcoma STAT3 Anticarin-β PDX model

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滚动轴承性能稳定性及可靠性分析

仪器仪表学报 2017年第6期38卷 1421-1431页

作者：夏新涛常振叶亮李云飞河南科技大学机电工程学院洛阳471003 河南科技大学机械装备先进制造河南省协同创新中心洛阳471003

以摩擦力矩电流信号时间序列表征滚动轴承服役期间性能运转状况,将时间序列分段处理并建立本征序列;基于灰关系,对轴承运转过程中每段摩擦力矩电信号进行排序,分别与本征序列相匹对进而获取灰置信水平;以灰置信水平的大小判定轴承运转... 详细信息

以摩擦力矩电流信号时间序列表征滚动轴承服役期间性能运转状况,将时间序列分段处理并建立本征序列;基于灰关系,对轴承运转过程中每段摩擦力矩电信号进行排序,分别与本征序列相匹对进而获取灰置信水平;以灰置信水平的大小判定轴承运转的性能稳定性情况。然后将所分数据段自助再抽样,用最大熵法建立其概率密度函数,在所对应灰置信水平下获取估计区间;凭借计数过程,模拟出变异强度的原始信息;基于泊松过程建立可靠性函数,实时监测滚动轴承性能可靠性演变历程。仿真案例与试验研究表明:所提模型可真实监控轴承运转的性能稳定性及可靠性,有效解决具有不确定的强烈波动和趋势变化的时间序列问题。

关键词：滚动轴承稳定性可靠性灰关系泊松过程

前额单通道脑电信号的疲劳特征提取及分类算法

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生物医学工程学杂志 2024年第4期41卷 732-741页

作者：杨慧舟刘云飞夏丽娟南京林业大学信息科学技术学院人工智能学院南京210037 博世(中国)投资有限公司中央研究院上海200335

针对前额单通道脑电信号特征提取能力不足,导致疲劳检测精度降低的问题,本文提出一种基于有监督对比学习的疲劳特征提取及分类算法。首先,通过经典模态分解对原始信号进行滤波,提高信噪比;其次,考虑到一维信号在信息表达上的局限性,利... 详细信息

针对前额单通道脑电信号特征提取能力不足,导致疲劳检测精度降低的问题,本文提出一种基于有监督对比学习的疲劳特征提取及分类算法。首先,通过经典模态分解对原始信号进行滤波,提高信噪比;其次,考虑到一维信号在信息表达上的局限性,利用有重叠采样将信号转换为二维结构,同时表达信号短期内和长期间变化;由深度可分离卷积构建特征提取网络,加速模型运算;最后,通过联合有监督对比损失与均方误差损失对模型进行全局优化。实验表明,该算法对三种疲劳状态分类的平均准确度可达75.80%,相较于其它先进算法均有较大幅度提高,显著提高了单通道脑电信号进行疲劳检测的准确性与可行性。本文研究为单通道脑电信号应用提供了有力支持,也为疲劳检测研究提供了新思路。

关键词：单通道脑电信号驾驶疲劳检测特征提取有监督对比学习