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[期刊论文] 作者:饶凤 RAO Feng, 来源:内燃机与配件 年份:2021
摘要:本文主要研究对象为航空薄壁框架类零件在数控加工过程当中所产生的变形抑制为题,同时针对相关加工工艺、装夹方式、切削线路展开分析,从而获取到产品数控加工变形相关影响原因,并提出优化方向,对整体加工工艺加以改进的同时,提出切削线路优化方式,以期为相关从业......
[期刊论文] 作者:Weiping Jia,Feng Liu, 来源:分子细胞生物学报(英文版) 年份:2021
Obesity has become a global epidemic and is one of today\'s most public health problems worldwide.Obesity poses a major risk for a vari-ety of serious diseases including diabetes melli-tus,non-alcoholic liver disease(NAFLD),cardiovascular d......
[期刊论文] 作者:Haiyan Zhou,Feng Liu, 来源:分子细胞生物学报(英文版) 年份:2021
T cells have long been known as the core of adaptive immunity and play piv-otal roles in host defense (Zhu et al.,2010).There are two main types of T cells in our body,cytotoxic T cells(CD8+) and helper T (Th) cells (CD4+),the latter compri......
[期刊论文] 作者:Xu Lu,Feng Li, 来源:中国科学:生命科学(英文版) 年份:2021
Dear Editor:rnRNA silencing confers immunity against most viruses and is initiated by host Dicer processing of viral double-stranded RNA into virus-derived small interfering RNA(siRNA)(Guo et al.,2019).Viruses that cause plant dis-ease usua......
[期刊论文] 作者:WANG Kaiyong,FENG Rundong, 来源:地理学报(英文版) 年份:2021
Administrative divisions are the important foundation of national governance and social development,and the adjustment of administrative divisions is a critical way to promote regional coordinated development.Under the background of globali......
[期刊论文] 作者:FENG Enduo,TIAN Yang, 来源:高等学校化学研究(英文版) 年份:2021
Surface-enhanced Raman scattering(SERS) is a molecular specific spectroscopic technique that amplifies the Raman sig-nal of absorbed molecules for up to 1010times.Over the past decades,SERS substrates experienced rapid growth,resulting in e......
[期刊论文] 作者:Zhao-Hui Li,Xin-Yu Feng, 来源:计算机科学技术学报(英文版) 年份:2021
Contextual refinement is a compositional approach to compositional verification of concurrent objects.There has been much work designing program logics to prove the contextual refinement between the object implementation and its abstract sp......
[期刊论文] 作者:Ge Feng,Liping Wang, 来源:代数集刊(英文版) 年份:2021
Let (W,S) be the affine Weyl group of type (B)2,on which we consider the length function e from W to N and the Bruhat order ≤.For y < w in W,let μ(y,w) be the coefficient of q1/2(e(w)-e(y)-1) in Kazhdan-Lusztig polynomial Py,w ∈ Z[q].We d......
[期刊论文] 作者:WU Han,HE Feng, 来源:高等学校化学研究(英文版) 年份:2021
Graphdiyne(GDY)based atom catalysts(Acs)show extraordinary electrocatalytic activities towards hydrogen evolution reaction(HER)and water oxidation reaction(OER),which have attracted wide attention of scientists.However,a precise understandi......
[期刊论文] 作者:Ke Feng,Liangming Shen, 来源:中国科学:数学(英文版) 年份:2021
We establish a new partial C0-estimate along a continuity path mixed with conic singularities along a simple normal crossing divisor and a positive twisted (1,1)-form on Fano manifolds.As an application,this estimate enables us to show the ......
[期刊论文] 作者:Zhenhan Feng,Huan Meng, 来源:中国科学:化学(英文版) 年份:2021
The gastrointestinal tract is an eight-meter-long pathway that includes various organs,which runs from the mouth to the anus.Under certain pathological circumstances,tumors can develop in one of these organs.Although these tumors could be s......
[期刊论文] 作者:Jian-qiang Feng,Bin-ju Wang, 来源:化学物理学报(英文版) 年份:2021
[4Fe-4S]-dependent radical S-adenosylmethionine(SAM)proteins are a superfamily of oxidoreduc-tases that can catalyze a series of challenging transformations using the common 5-dAdo rad-ical intermediate.Although the structures and functions......
[期刊论文] 作者:Feng Guodong,Huang Deyuan, 来源:中国社会科学(英文版) 年份:2021
China\'s wenxianxue (bibliographic study of classical works) is an instrumental discipline centered on the methods and techniques of “working on documents.” It provides reliable texts and materials for other disciplines,but also needs to ......
[期刊论文] 作者:Juli Bai,Feng Liu, 来源:分子细胞生物学报(英文版) 年份:2021
The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling pathway senses the presence of cytosolic DNA and,in turn,triggers downstream signaling to induce the expression of inflammatory and type Ⅰ interferon genes......
[期刊论文] 作者:FENG Zehua,NIU Huizi, 来源:人权(英文版) 年份:2021
On the 30th anniversary of the implementation of the Law of the People\'s Republic of China on the Protection of Persons with Disabilities, re-examining the standardization of sign language and Braille will help implement the 14th Five-Year......
[期刊论文] 作者:Chang Yuwen,Feng Naichao, 来源:中国油气(英文版) 年份:2021
With the global climate response being implemented at the national level,more than 120 countries and regions have proposed“carbon neutrality”targets,the global energy transition process has been accelerated as traditional oil and gas busi......
[期刊论文] 作者:Feng Jiang,Guangze Jin, 来源:植物生态学报(英文版) 年份:2021
功能性状通常在不考虑环境背景的情况下被用来预测植物动态.然而,前人的研究发现性状对植物动态有较弱的预测能力.本文假设加入环境背景而不仅仅关注性状能够提高对性状-植物动态关系的理解.本研究基于一个9 ha温带老龄林动态监测样地,利用广义线性混合效应模型......
[期刊论文] 作者:Qiulin Ma,Yunlong Chen,Nan Feng,Feng Yan,Huangxian Ju, 来源:中国科学:化学(英文版) 年份:2021
A novel sensing chip was designed for MALDI-MS quantitation of acid phosphatase(ACP).The ACP sensing chip was constructed through non-covalent interaction of st...
[期刊论文] 作者:Sheng Shi,Feng Zhang,KangWei Tang,DeCheng Feng,XuFeng Lu,, 来源:Sciences in Cold and Arid Regions 年份:2021
The shear properties of ice-frozen soil interface are important when studying the constitutive model of frozen soil and slope stability in cold regions. In this research, a series of cryogenic direct...
[期刊论文] 作者:He-bin WANG,Feng PENG,Min WANG,Ren-yi QIN,Feng ZHU, 来源:当代医学科学(英文) 年份:2021
Summary:Preoperative biliary drainage may increase the morbidity and mortality of pancreatico-duodenectomy.Studies on percutaneous transhepatic biliary drainage...
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