检索结果-南通市图书馆

The Role and Influence of the Non-Governmental Organizations on International Relations During the Post Cold War Era

在线全文

学校读者我要写书评

暂无评论

International Understanding 2000年第2期 2-5页

作者： Kong Genhong wang yingchun

Study on inner defects of continuously-cast blooms and soft reduction process

在线全文

学校读者我要写书评

暂无评论

Baosteel Technical Research 2013年第4期7卷 38-42页

作者： BU Xingle wang yingchun Administrative Office Baosteel Engineering & Technology Group Co.Ltd. Steelmaking Technonlogy Department Research InstituteBaoshan Iron & Steel Co.Ltd.

At the initial operation stage of the continuous bloom caster at Baosteel, a lot of central porosity and cracks occurred in blooms, especially in the blooms of high-pressure boiler steel. In this study, a model of heat transfer and solidification was set up to analyze the process of continuous bloom casting. Based on the model, the distributions of temperature field and shell thickness were obtained, the mushy zone was defined, and thereby the technology of soft reduction for blooms was developed. After several tests were conducted, a reasonable test plan was developed, which led to the determination of the optimal reduction zone and gauge reduction. Now, central porosity and cracks in blooms are almost avoided and the inner quality has been obviously improved.

关键词： bloom central porosity crack heat transfer and solidification soft reduction

The quantitative proteome atlas of a model cyanobacterium

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2022年第2期49卷 96-108页

作者： Jinlong wang Xiahe Huang Haitao Ge Yan wang Weiyang Chen Limin Zheng Chengcheng Huang Haomeng Yang Lingyu Li Na Sui Yu wang Yuanya Zhang Dandan Lu Longfa Fang Wu Xu Yuqiang Jiang Fang Huang yingchun wang State Key Laboratory of Molecular Developmental Biology The Innovative Academy of Seed DesignInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China School of Life Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhouZhejiang 310024China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Photobiology Institute of BotanyChinese Academy of SciencesBejing 100093China Shandong Provincial Key Laboratory of Plant Stress College of Life ScienceShandong Normal UniversityJinanShandong 250014China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifengHenan 475004China Department of Chemistry University of Louisiana at LafayetteLafayetteLA 70504USA

Cyanobacteria are a group of oxygenic photosynthetic bacteria with great potentials in biotechnological applications and advantages as models for photosynthesis research. The subcellular localizations of the majority of proteins in any cyanobacteria remain undetermined, representing a major challenge in using cyanobacteria for both basic and industrial researches. Here, using label-free quantitative proteomics, we map 2027 proteins of Synechocystis sp. PCC6803, a model cyanobacterium, to different subcellular compartments and generate a proteome atlas with such information. The atlas leads to numerous unexpected but important findings, including the predominant localization of the histidine kinases Hik33 and Hik27 on the thylakoid but not the plasma membrane. Such information completely changes the concept regarding how the two kinases are activated. Together, the atlas provides subcellular localization information for nearly 60% proteome of a model cyanobacterium, and will serve as an important resource for the cyanobacterial research community.

关键词： Proteome atlas Cyanobacteria Proteomics Membranes Synechocystis

Research on segregation control for round billet of anti-sulfur steel

在线全文

学校读者我要写书评

暂无评论

Baosteel Technical Research 2020年第1期14卷 1-7页

作者： wang yingchun LIU Qilin LI Ying Research Institute Baoshan Iron&Steel Co.Ltd.Shanghai 201999China Tube Pipe and Bar Business UnitBaoshan Iron&Steel C o.L td.Shanghai 200940China School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The carbon segregation that occurs in a round billet leads to instability in the anti-sulfur steel *** maximum difference in the C content of these billets can reach 0.08%,and the equiaxed grain ratio is about 37.0%.In this paper,reasonable casting and mixing parameters were obtained by a study of the casting process,mold electromagnetic stirring,and the final electromagnetic stirring ***,a mathematical model was established for the solidification and heat transfer of round-billet continuous casting using the characteristics of the continuous-casting process for sulfur-resistant steel *** relationship between the casting speed,cooling-water ratio,and thickness of the shell at the final stirring position was ***,the electromagnetic force and the liquid steel flow velocity were simulated and used to obtain reasonable parameters for the mold and final electromagnetic *** optimization of the casting and electromagnetic stirring technologies,the equiaxed grain ratio of the continuous-casting round billet increased to 53.4%and the maximum difference in the C content of the billet reduced to 0.031%.

关键词： round billet segregation electromagnetic stirring

OsHYPK-mediated protein N-terminal acetylation coordinates plant development and abiotic stress responses in rice

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2022年第4期15卷 740-754页

作者： Xiaodi Gong Yaqian Huang Yan Liang Yundong Yuan Yuhao Liu Tongwen Han Shujia Li Hengbin Gao Bo Lv Xiahe Huang Eric Linster yingchun wang Markus Wirtz Yonghong wang Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Crop Biology College of Life SciencesShandong Agriculture UniversityTaianShandong 271018China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Centre for Organismal Studies Heidelberg University69120 HeidelbergGermany

N-terminal acetylation is one of the most common protein modifications in eukaryotes,and approximately 40%of human and plant proteomes are acetylated by ribosome-associated N-terminal acetyltransferase A(NatA)in a co-translational ***,the in vivo regulatory mechanism of NatA and the global impact of NatA-mediated N-terminal acetylation on protein fate remain ***,we identify Huntingtin Yeast partner K(HYPK),an evolutionarily conserved chaperone-like protein,as a positive regulator of NatA activity in *** found that loss of OsHYPK function leads to developmental defects in rice plant architecture but increased resistance to abiotic stresses,attributable to perturbation of the N-terminal acetylome and accelerated global protein ***,we demonstrated that OsHYPK is also a substrate of NatA and that N-terminal acetylation of OsHYPK promotes its own degradation,probably through the Ac/N-degron pathway,which could be induced by abiotic *** together,our findings suggest that the OsHYPK-NatA complex plays a critical role in coordinating plant development and stress responses by dynamically regulating NatA-mediated N-terminal acetylation and global protein turnover,which are essential for maintaining adaptive phenotypic plasticity in rice.

关键词： rice OsHYPK N-terminal acetylation protein turnover plant architecture stress response

Anti-Crack Performance of Low-Heat Portland Cement Concrete

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

Journal of Wuhan University of Technology(Materials Science) 2007年第3期22卷 555-559页

作者：杨华全 Changjiang River Scientific Research Institute

The properties of low-heat Portland cement concrete（LHC） were studied in detail. The experimental results show that the LHC concrete has characteristics of a higher physical mechanical behavior, deformation and durability. Compared with moderate-heat Portland cement（MHC）, the average hydration heat of LHC concrete is reduced by about 17.5%. Under same mixing proportion, the adiabatic temperature rise of LHC concrete was reduced by 2 ℃-3 ℃,and the limits tension of LHC concrete was increased by 10× 10^-6-15×10^-6 than that of MHC. Moreover, it is indicated that LHC concrete has a better anti-crack behavior than MHC concrete.

关键词： low-heat portland cement mass concrete high crack resistance moderate-heat portland cement

Analysis of bulging for high speed continuous casting

在线全文

学校读者我要写书评

暂无评论

Baosteel Technical Research 2012年第3期6卷 24-27页

作者： wang yingchun RUAN Xiaoming ZHANG Li Metallurgical Process Division Research InstituteBaosteel Iron&Steel Co.Ltd.Shanghai 201900China

In order to research the temperature distribution and mechanical deformation of slab bulging during high speed continuous casting, mathematical models have been developed to analyze the thermal and mechanical behavior of the slab. The thermal history of the slab has been predicted by a two-dimensional transient finite element heat transfer model, whose results serve as the input to the stress model. The stress model has been formulated for a two-dimensional longitudinal plane. In this case,the maximum tensile strain during the bulging process is located at the solidification fi＇ont just past the top of the upstream roll,which may contribute to crack formation. The maximum tensile stresses are located at the cold surface in the middle of the two back-up rolls ,just at the point of the maximum bulging. Stresses near the solidification fi＇ont are small because of the high temperatures which produce lower elastic modulus values. Finally,the effect of the casting speed on the bulging deformation is discussed.

关键词： continuous casting: bulging temperature field: stress and strain

Discussion on the Financial Management Goal and the Investor Supervision for Enterprise

在线全文

学校读者我要写书评

暂无评论

Chinese Business Review 2005年第6期4卷 30-33页

作者： Yigang Liang Zhiyuan Li yingchun wang Shijiazhuang Railway Institute

The investors and the managers are different interest entities in a firm, so there must be divergences between them in their value reference and goal selection. When a firm wants to determine its financial management goal, not all the relevant interest parties need to be considered with, but only the principal entities of them. It＇s necessary to set up the investor supervision mechanism by some certain system arrangement in order to realize the interest maximization of shareholders coinciding with the manager＇s interest maximization pursued by managers.

关键词： financial management goal investor supervision

Regulation of nitrogen starvation responses by the alarmone(p)ppGpp in rice

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

Journal of Genetics and Genomics 2022年第5期49卷 469-480页

作者： Hanwen Li Jinqiang Nian Shuang Fang Meng Guo Xiahe Huang Fengxia Zhang Qing wang Jian Zhang Jiaoteng Bai Guojun Dong Peiyong Xin Xianzhi Xie Fan Chen Guodong wang yingchun wang Qian Qian Jianru Zuo Jinfang Chu Xiaohui Ma State Key Laboratory of Plant Genomics National Center for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Innovation Academy for Seed Design Chinese Academy of SciencesBeijing 100101China State Key Laboratory of Rice Biology China National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhouZhejiang 310006China Institute of Wetland Agriculture and Ecology Shandong Academy of Agricultural SciencesJinanShandong 250100China Hainan Yazhou Bay Laboratory SanyaHainan 572025China CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of SciencesBeijing 100101China

Nitrogen is an essential macronutrient for all living organisms and is critical for crop productivity and *** higher plants,inorganic nitrogen is absorbed through roots and then assimilated into amino acids by the highly conserved glutamine synthetase/glutamine:2-oxoglutarate aminotransferase(GS/GOGAT)*** nitrogen metabolism and nitrogen starvation responses of plants are regulated remains largely *** studies revealed that mutations in the rice ABNORMAL CYTOKININ RESPONSE1(ABC1)gene encoding Fd-GOGAT cause a typical nitrogen deficiency ***,we show that ARE2(for ABC1 REPRESSOR2)is a key regulator of nitrogen starvation responses in *** are2 mutations partially rescue the nitrogen-deficient phenotype of abc1 and the are2 mutants show enhanced tolerance to nitrogen deficiency,suggesting that ARE2 genetically interacts with ABC1/***2 encodes a chloroplast-localized Rel A/Spo T homolog protein that catalyzes the hydrolysis of guanosine pentaphosphate or tetraphosphate(p)pp Gpp,an alarmone regulating the stringent response in bacteria under nutritional stress *** are2 mutants accumulate excessive amounts of(p)pp Gpp,which correlate with lower levels of photosynthetic proteins and higher amino acid ***,these observations suggest that the alarmone(p)pp Gpp mediates nitrogen stress responses and may constitute a highly conserved mechanism from bacteria to plants.

关键词： Rice Stringent response Nitrogen starvation response (p)ppGpp ARE2