检索结果-南通市图书馆

Texture Evolution Behavior and Its Triggered Mechanical Anisotropy of CP Ti During Severe Cold Rolling and Subsequent Annealing

引用

Acta Metallurgica Sinica(English Letters) 2020年第9期33卷 1271-1282页

作者： Xiaohui Shi Zuhan Cao Zhiyuan Fan Junwei Qiao College of Materials Science and engineering Taiyuan University of TechnologyTaiyuan 030024China

The texture evolution behavior and its triggered mechanical anisotropy of commercially pure titanium(CP Ti) during severe cold rolling and subsequent annealing are discussed based on the optical microscopy and the electron backscattered diffraction analyses. Some enlightening results are found. It is shown that planar textures exist under all treatments, namely the {11–29} under rolling state, the {11–27} under 300 °C annealing state and the {11–24} under 500 °C annealing state. This indicates that the crystal plane indices of planar texture change toward {-12–10} with increasing annealing temperature, which is a result of crystal lattice rotation. Planar texture triggers anisotropy of the mechanical properties for CP Ti sheets under all treatments. In particular, CP Ti sheets exhibit severe and similar anisotropy behavior under rolling and 300 °C annealing states. Generally speaking, the rolling direction(RD) specimens get relatively low yield strength, high ultimate tensile strength and good plasticity, and RD + 45° specimens show relatively high yield strength, low ultimate tensile strength and good plasticity. The transverse direction specimens, however, usually exhibit high yield strength and low plasticity. It is proved that the above anisotropy behavior is mainly determined by the Schmid factor distribution of the(10–10)[11–20] prismatic slip system in different directions. Due to the non-negligible influence exerted by the(0001)[11–20] basal slip system after 500 °C annealing, the anisotropy behavior under this state is obviously different.

关键词： Titanium Texture Severe cold rolling Annealing Anisotropy Schmid factor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Deformation behavior and plastic instability of boronized Al0.25CoCrFeNi high-entropy alloys

引用

International Journal of Minerals,Metallurgy and Materials 2020年第10期27卷 1363-1370页

作者： Jin-xiong Hou Jing Fan Hui-jun Yang Zhong Wang Jun-wei Qiao College of Materials Science and engineering Taiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Interface Science and engineering in Advanced Materials(Ministry of Education Taiyuan University of TechnologyTaiyuan 030024China

Using thermochemical treatments,boronized layers were successfully prepared on Al0.25CoCrFeNi high-entropy alloys(HEAs).The thickness of the boronized layers ranged widely from 20 to 50μm,depending on the heat treatment *** remarkably improved the surface hardness from HV 188 to HV 1265 after treating at 900°C for 9 ***,boronizing enhanced the yield strength of HEAs from 195 to 265 MPa but deteriorated the tensile *** crackings in the boride layers significantly decreased the *** insufficient work-hardening capacity essentially facilitated the plastic instability of the boronized *** decreasing substrate thickness,the fracture modes gradually transformed from dimples to quasi-cleavage and eventually to cleavage.

关键词： boronizing high-entropy alloys boride layers tensile strength cleavage fracture

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A fully automated centrifugal microfluidic system for sample-to-answer viral nucleic acid testing

引用

Science China Chemistry 2020年第10期63卷 1498-1506页

作者： Fei Tian Chao Liu Jinqi Deng Ziwei Han Lu Zhang Qinghua Chen Jiashu Sun CAS Key Laboratory of Standardization and Measurement of Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese academy of Sciences Beijing 100049China Department of Chemistry Capital Normal UniversityBeijing 100048China

The outbreak of virus-induced infectious diseases poses a global public-health *** acid amplification testing(NAAT)enables early detection of pandemic viruses and plays a vital role in preventing onward ***,the requirement of skilled operators,expensive instrumentation,and biosafety laboratories has hindered the use of NAAT for screening and diagnosis of suspected *** we report development of a fully automated centrifugal microfluidic system with sample-in-answer-out capability for sensitive,specific,and rapid viral nucleic acid *** release of nucleic acids and the subsequent reverse transcription loop-mediated isothermal amplification(RT-LAMP)were integrated into the reaction units of a microfluidic *** whole processing steps such as injection of reagents,fluid actuation by rotation,heating and temperature control,and detection of fluorescence signals were carried out automatically by a customized *** validate the centrifugal microfluidic system using oropharyngeal swab samples spiked with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)armored RNA *** estimated limit of detection for armored RNA particles is 2 copies per reaction,the throughput is 21 reactions per disc,and the assay sample-to-answer time is approximately 70 *** enclosed and automated microfluidic system efficiently avoids viral contamination of aerosol,and can be readily adapted for virus detection outside the diagnostic laboratory.

关键词： nucleic acid testing virus microfluidics sample-to-answer automation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Distribution patterns of phytoplankton in the Changjiang River estuary and adjacent waters in spring 2009

引用

Chinese Journal of Oceanology and Limnology 2016年第5期34卷 902-914页

作者：孔凡洲徐子钧于仁成袁涌铨周名江 Key Laboratory of Marine Ecology and Environmental Sciences Chinese Academy of Sciences Qingdao 266071 China Laboratory of Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and Technology Qingdao 266071 China North China Sea Monitoring Centre Qingdao 266033 China

The Changjiang River estuary and adjacent waters are one of the most notable regions for red tides/harmful algal blooms in China's coastal *** this study,phytoplankton samples were collected and analyzed during the outbreak stage of red tides in May *** was found that dinoflagellates,Prorocentrum donghaiense and Karenia mikimotoi,and diatoms,Skeletonema *** Paralia sulcata,were the major taxa dominating the phytoplankton *** analysis,non-metric multidimensional scaling(NMDS) and analysis of similarities(ANOSIM) was conducted on a data matrix including taxa composition and cell abundance of the phytoplankton *** analyses categorized the samples into three groups at a similarity level of 30%.Group Ⅰ was characterized by estuarine diatoms and distributed mainly in the highly turbid estuarine *** Ⅱ,which was dominated by the diatom Skeletonema *** represented the red tide of Skeletonema spp.,was situated around Group Ⅰ in the sea area west of 122°50'*** Ⅲ was characterized by a high proportion of dinoflagellates and was found further offshore compared with Groups Ⅰ and Ⅱ.Group Ⅲ was further divided into two subgroups(Ⅲ-S1 and Ⅲ-S2) at a similarity level of 40%.Group Ⅲ-S1 was characterized by the presence of the benthic diatom ***,representing phytoplankton samples collected either from the bottom or from the sea area affected by ***Ⅲ-S2 was dominated by dinoflagellates and represented red tides formed by *** and ***.A gradual change of red-tide causative species was observed from the estuary to the offshore sea area,from diatoms to armored dinoflagellates and then unarmored *** factors associated with each group,and thus affecting the distribution of phytoplankton and red tides,are discussed.

关键词： phytoplankton cluster analysis red tide distribution Changjiang River estuary

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Anti-PD-1 antibody armored γδ T cells enhance anti-tumor efficacy in ovarian cancer

引用

Signal Transduction and Targeted Therapy 2023年第11期8卷 5470-5480页

作者： Yue Wang Jingyi Han Dongdong Wang Menghua Cai Yi Xu Yu Hu Hui Chen Wei He Jianmin Zhang Department of Immunology CAMS Key Laboratory of T-cell and ImmunotherapyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences and School of Basic MedicinePeking Union Medical CollegeState Key Laboratory of Common Mechanism Research for Major DiseasesBeijing 1oooo5China Department of Thoracic Surgery Qilu Hospital of Shandong UniversityJinanShandong 250012China Haihe Laboratory of CellEcosystem Chinese Academy of Medical Sciences&Peking Union Medical College288 Nanjing RoadTianjin 300020China Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy Changzhou 213000China

γδ T cells have the unique ability to detect a wide range of tumors with low mutation burdens,making them attractive candidates for CAR-T-cell *** aβT cells and other immune cells,γδ T cells are superior in MHC non-restriction,selective cell recruitment,and rapid ***,clinical trials have shown limited clinical benefits,and the adoptive transplantation of γδ T cells has often fallen short of *** hypothesized that the limited effectiveness of γδ T cells in eradicating tumor cells may be attributed to the inhibitory tumor microenvironment induced by the suppressive PD-1/PD-L1 ***,we constructed novel armored γδ T cells capable of secreting humanized anti-PD-1 antibodies,referred to as"Lv-PD1-ys T ***-PD1-γδ T cells showed improved proliferation and enhanced cytotoxicity against tumor cells,resulting in augmented therapeutic effects and survival benefits in ovarian tumor-bearing *** engineered cells demonstrated a prolonged in vivo survival of more than 29 days,without any potential for tumorigenicity in immunodeficient NOD/SCID/null *** also found that Lv-PD1-γδ T cells exhibited excellent tolerance and safety in humanized NOD/SCID/null *** attenuated or eliminated immunosuppression and maximized cytotoxicity efficacy by the local secretion of anti-PD1 antibodies in tumors,Lv-PD1-γδ T cells can serve as a promising"off-the-shelf"cell therapy against cancers.

关键词： PD1 attractive sized

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis and Investigation of the Activity of Cu-Cr-Co/Al₂O₃/Al-Catalysts in the Microwave Radiation-Stimulated Reaction Joint Deep Oxidation of Hydrocarbons and Carbon Monoxide

引用

Modern Research in Catalysis 2016年第1期5卷 11-18页

作者： Peri A. Muradova Yuriy N. Litvishkov Institute of Catalysis and Inorganic Chemistry Named after M. Nagiyev of Azerbaijan National academy of Sciences Baku Azerbaijan

This article shows main principles and presents ideas described in the scientific and technical literature, on the mechanism of interaction of microwave radiation with a solid phase materials, which were used as a basis of creation of new perspective, energy efficient and environmentally safe technologies of preparation of heterogeneous catalysts for the reactions which were carried out under the influence of electro-magnetic radiation of microwave radiation. Author’s research results confirm possibilities of practical use of proposed method of hydrothermal oxidation of industrial low-dispersing of aluminum powders with presence of bulk phase of Al(ОН)3·nH2O, with further thermal treatment in microwave field for acquisition of armored А1/А12О33 compositions, which effectively consume energy of microwave radiation. Due to the textured characteristics and thermo-transforming ability, synthesized components can be used as potential universal bearings of catalysts for reactions stimulated by electromagnetic radiation of (2.45 GHz) microwave frequency.

关键词： Microwave Radiation Heterogeneous Catalysis γ-A12O3/Al-Carrier Conversion of Exhaust Gas Carbon Monoxide Oxides of Metals with Variable Valence

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：