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Role of Baicalein in the regulation of proliferation and apoptosis in human myeloma RPMI8226 cells

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Chinese Medical Journal 2006年第11期119卷 948-952页

作者： LI Qiu-bai Y0U Yong CHEN Zhi-chao Lü Jian SHA0 Jing Z0U Ping Institute of Hematology Union Hospital Tongji Medical CollegeHuazhong University of Science and Technology Wuhan 430022China

Multiple myeloma （MM） is a uniformly fatal disease characterized by a clonal proliferation of neoplastic plasma cells in the bone marrow and is the second most commol hematological malignancy.1 At present, a cure for multiple myeloma has not been achieved with chemotherapeutic regimen, and many patients die of drug-resistant disease. Thus, the development of new effective anticancer agents to treat both early and advanced MM seems to be an attractive perspective.

关键词： Baicalein 12-lipoxygenase proliferation apoptosis

单层A3钢薄靶在不同头型弹体斜撞击下的失效模式和防护性能研究

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振动与冲击 2018年第1期37卷 27-31,39页

作者：郭子涛郭钊张伟九江学院土木工程和城市建设学院江西九江332005 哈尔滨工业大学高速撞击研究中心哈尔滨150080

利用轻气炮设备对平头、卵形弹进行了以5种角度撞击2 mm单层A3钢薄靶的斜穿甲试验,得到了不同头型弹体在各个角度撞击单层靶的初始-剩余速度曲线及靶板的弹道极限,获得并对比分析了弹体头部形状、撞击角度对靶板的防护性能及失效模式的... 详细信息

利用轻气炮设备对平头、卵形弹进行了以5种角度撞击2 mm单层A3钢薄靶的斜穿甲试验,得到了不同头型弹体在各个角度撞击单层靶的初始-剩余速度曲线及靶板的弹道极限,获得并对比分析了弹体头部形状、撞击角度对靶板的防护性能及失效模式的影响。结果发现,平头弹在各个撞击角度下较卵形弹更容易击穿靶板,撞击角度较大时卵形弹较平头弹更容易发生跳飞现象;靶板的防护性能与弹体造成的靶板损伤和失效模式紧密相关,随着斜撞击角度变大,平头弹造成的靶板局部穿孔毁伤模式逐步由剪切冲塞失效转向以拉伸撕裂失效为主,同时整体结构弯曲和膜变形减小,而薄板在卵形弹斜撞击下的失效模式则以局部斜形非对称花瓣开裂为主。

关键词：单层薄板斜撞击防护性能毁伤特性弹道极限

Design of a Low Respiratory Resistance Mask for COVID-19

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Journal of Shanghai Jiaotong university(Science) 2022年第4期27卷 543-551页

作者： YANG Pufan HUANG Hongxin WEI Sijie YA0 Yuana ZHANG Zhinan School of Mechanical and Engineering Shanghai Jiao Tong UniversityShanghai200240China iDesignLab Student Innovation CenterShanghai Jiao Tong UniversityShanghai200240China

Observational evidence suggests that mask-wearing mitigates transmission of COVID-19;at the same time high respiratory resistance leads to an unwillingness to wear *** paper proposed a respiratory drive structure to reduce the air resistance of a *** structure provides different shapes during expiration and inspiration while focusing on filtering dust,bacteria,or ***,the assembled system on the mask can be disassembled and *** porous media simulation is used to verify the model *** results of a new mask show that the ventilation resistance is reduced by 20%,and the bacterial filtration efficiency meets the requirements of YY 0469–2011.

关键词： mask conceptual structure respiratory resistance bacterial filtration efficiency

A novel black TiO2/ZnO nanocone arrays heterojunction on carbon cloth for highly efficient photoelectrochemical performance

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Frontiers of Materials Science 2019年第1期13卷 43-53页

作者： Pengcheng WU Chang LIU Yan LUO Keliang WU Jianning WU Xuhong GUO Juan H0U Zhiyong LIU School of Chemistry and Chemical Engineering Shihezi University/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region/Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang BingtuanShihezi 832003China College of Science/Key Laboratory of Ecophysics and Department of Physics of Xinjiang Bingtuan Shihezi 832003China

ZnO nanocone arrays(NCAs)decorated with black TiO2 nanoparticles(BTiO2 NPs)were uniformly anchored on the surface of carbon cloth(CC)directly by a simply electrochemical deposition *** a novel B-TiO2 NPs/ZnO NCAs-CC hierarchical heterostructure was *** displayed superior performance and achieved a higher photocurrent over 0.4 mA·cm^-2 before the onset of the dark current,attributed to the separation of the photogenerated electron-hole *** on the B-TiO2 NPs/ZnO NCAs-CC heterostructure,the catalyst was fabricated for promoting the separation of charge ***,the introduction of Ti^3+ and oxygen vacancies on the surface of TiO2 NPs expanded the absorption band edge and enhanced the electrical conductivity as well as the charge transportation on the catalytic *** indicates that the B-TiO2 NPs/ZnO NCAs-CC composite is beneficial to the improvement of the photoelectrochemical(PEC)activity.

关键词： black TiO2 nanoparticles ZnO nanocones arrays carbon cloth

Effect of Fertilization on the Impact of Weather Changes on Crop Yield

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Pedosphere 1996年第4期6卷 379-382页

作者： CUI DEJIE and YAO YUANXI (Laiyang Agricultural College, Shandong 2652O0 China) Laiyang Agricultural College Shandong 265200 China

ＥｆｆｅｃｔｏｆＦｅｒｔｉｌｉｚａｔｉｏｎｏｎｔｈｅＩｍｐａｃｔｏｆＷｅａｔｈｅｒＣｈａｎｇｅｓｏｎＣｒｏｐＹｉｅｌｄＣＵＩＤＥＪＩＥａｎｄＹＡＯＹＵＡＮＸＩ（ＬａｉｙａｎｇＡｇｒｉｃｕｌｔｕｒａｌＣｏｌｌｅｇｅ，Ｓ... 详细信息

ＥｆｆｅｃｔｏｆＦｅｒｔｉｌｉｚａｔｉｏｎｏｎｔｈｅＩｍｐａｃｔｏｆＷｅａｔｈｅｒＣｈａｎｇｅｓｏｎＣｒｏｐＹｉｅｌｄＣＵＩＤＥＪＩＥａｎｄＹＡＯＹＵＡＮＸＩ（ＬａｉｙａｎｇＡｇｒｉｃｕｌｔｕｒａｌＣｏｌｌｅｇｅ，Ｓｈａｎｄｏｎｇ２６５２Ｏ０Ｃｈｉｎ...

关键词： climatic factors crop yield long-term fertilization experiment

SELF-ALIGNING EVEN LOAD MECHANISM OF MULTI-ROW BEARINGS OF LARGE STRIP ROLLING MILL

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Chinese Journal of Mechanical Engineering 2006年第2期19卷 246-250页

作者： HUANG Qingxue LI Yugui SHEN Guangxian CHEN Zhanfu SHU Xuedao SHI Rong ZHA0 Hongwei CHEN Buquan College of Material Engineering Taiyuan University of Science and TechnologyTaiyuan 030024 China Department of Machinery Yanshan UniversityQinhuangdao 066004 China Hot Mill Plant Baoshan I＆S Group Co.Shanghai 200030 China

The load distribution of multi-row bearings of large strip rolling mill is fully analyzed by 3D contact boundary element method （BEM）. It is found out that bearings are frequently worn out due to serious uneven load on the multi-row rollers. The constraint mechanism of the previous rolling system is found to be unreasonable by theoretical analysis on heavy machinery structure. A mechanism of self-aligning even load for workroll bearing of 2 050 mm hot rolling mill of Baoshan I＆S Co. is developed. This device is manufactured with particular regard to the structure of 2 050 mm hot rolling mill mentioned above. Hence, uneven load on multi-row bearings is greatly relieved and their lives are remarkably prolonged. Meanwhile, theoretical analysis and on-spot tests prove the rationality and validity of the device.

关键词： Strip rolling mill Multi-row bearings Loading features

MAIN TOPICS, ABSTRACTS ＆ KEY WORDS

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焊接技术 2014年第2期43卷 I0001-I0002页

作者： ZHENG Long-fei FU Li ZHA0 Peng-kang State Key Laboratory of Solidification Processing School of Material Science and Engineering Northwestern Poly- technical University Xi'an 710072 Shaanxi pro. China

DESIGN EFFICIENCY FOR MINIMUM PROJECTION UNIFORMITY DESIGNS WITH TWO LEVELS

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Journal of Systems Science & Complexity 2011年第4期24卷 761-768页

作者： Hong QIN Na Z0U Shangli ZHANG Department of Statistics Central China Normal University Wuhan 430079 China. Department of Mathematics Beijing Jiaotong University Beijing 100044 China.

The objective of this paper is to study the issue of design efficiency for minimum projection uniformity designs. The results show that for orthogonal arrays with strength two, the minimum projection uniformity criter... 详细信息

关键词： Generalized minimum aberration minimum projection uniformity orthogonal array uniform design.

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槡σ2, if tsi-tsj ≤σ

中文信息学报 2018年第9期 78-84页

作者： 0,