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[期刊论文] 作者:何东林,张金战, 来源:汕头大学学报(自然科学版) 年份:2022
利用同调代数的方法,讨论关于半对偶模C的弱Ding-投射模的若干性质,证明弱Ding PPC-分解的每个核都是弱Ding-投射模.研究模M的弱Ding-投射维数wDPC-pd(M)小于等于n的若干等价刻画...+1(M,N)=0,当且仅当对任意C-f-投射维数有限的模N都有Ext Rj≥n+1(M,N)=0,当且仅当存在正合列0→Kn→Wn-1→…→W1→W0→M→0,其中Wi(0≤i≤n-1)和Kn是弱Ding...
[期刊论文] 作者:Duo LI, 来源:数学学报(英文版) 年份:2022
Let l be a line in a projective space Pn.We consider the blowing up Pn(l) of Pn along l.Assume that X is a smooth closed subvariety of Pn.If the strict transform of X in Pn(l) has a splitting tangent sequence and dim X is at least 2,then X ......
[期刊论文] 作者:, 来源:橡塑技术与装备 年份:2022
位于德国Lauterbach的薄膜制造商DUO PLAST AG公司的创新薄膜DUO EX-TRA配备了静电消散聚合物Elastostat?....
[期刊论文] 作者:Yuan Yuan, 来源:北京周报(英文版) 年份:2022
Troubled Water is clearly the favorite song of Sui Wenjing and Han Cong, China\'s leading figure skating duo...
[学位论文] 作者:刘一甫, 来源:西北民族大学 年份:2022
[期刊论文] 作者:Frédéric Checler,Audrey Valverde, 来源:中国神经再生研究(英文版) 年份:2022
The etiology of Alzheimer\'s disease is far from being completely understood. Genetic approaches have helped in this matter and have greatly supported the view that the β-amyloid precursor protein (βAPP) could be at the center of gravity ......
[期刊论文] 作者:吴玲妹, 来源:中学生博览 年份:2022
<正>猴子的执着在亚洲,有一种捉猴子的陷阱。他们把椰子挖空,然后用绳子绑起来,接在树上或固定在地上,椰子上留了一个小洞,洞里放了一些食物,洞口大小恰好只能让猴子空着手伸进去,而无法握着拳头伸出来。于是猴子闻香而来,将它的手伸进去抓食物,理所当然地,紧握的......
[期刊论文] 作者:杨春丽, 来源:吉林医学 年份:2022
患者顽固性皮肤瘙痒的效果.方法:选取60例MHD并发顽固性皮肤瘙痒患者,随机分为观察组和对照组,每组30例.对照组给予硫代硫酸钠治疗,观察组给予西那卡塞联合硫代硫酸钠治疗.比较两组视觉模拟评分(VAS)、改良Duo...评分、匹兹堡睡眠质量指数问卷(PSQI)评分、临床疗效及不良反应.结果:治疗后,观察组VAS评分及改良Duo评分较对照组显著降低,差异有统计学意义(P...
[期刊论文] 作者:钟魁晨,张翠萍, 来源:西南大学学报(自然科学版) 年份:2022
引入了n-强投射余可解Gorenstein平坦模的概念,给出了这类模的等价条件及其性质,讨论了n-强投射余可解Gorenstein平坦模与n-强Gorenstein平坦模、n-强Ding投射模之间的关系...
[期刊论文] 作者:Baojin Ding, 来源:中国神经再生研究(英文版) 年份:2022
Dystonia is a common movement disorder characterized by sustained or intermittent muscle contractions causing abnormal movements and/or postures (Keller Sarmiento and Mencacci, 2021). The dystonic syndromes are classified as primary dystoni......
[学位论文] 作者:倪墡玲, 来源:吉林大学 年份:2022
目的:本研究比较了HF酸酸蚀、Er:YAG激光、Nd:YAG激光以及喷砂四种表面处理方法对Celtra Duo,LAVA Ultimate,CEREC Blocs三种CAD/CAM陶瓷表面形貌、粘接强度...
[期刊论文] 作者:王正元,刘明芳,李万瑶, 来源:蜜蜂杂志 年份:2022
天鼎穴(Tian Ding LI17)属于手阳明大肠经第17个穴位.天,“颠也”,指天人地三部之上部也;鼎,“三足两耳,和五味之宝器也”,古代烹煮用的器物,一般三足两耳.此穴位于颈部胸锁乳突肌后缘,而胸锁乳突肌特征为一肌三头...
[期刊论文] 作者:Tengjiao Gao,Xiaoyun Ding, 来源: 年份:2022
[期刊论文] 作者:Gao Tengjiao,Ding Xiaoyun, 来源:中华医学杂志英文版 年份:2022
[期刊论文] 作者:Peize Ding,Wei Yi, 来源:中国物理B(英文版) 年份:2022
We study two-body non-Hermitian physics in the context of an open dissipative system depicted by the Lindblad master equation.Adopting a minimal lattice model of a handful of interacting fermions with single-particle dissipation,we show tha......
[期刊论文] 作者:DING Rui,SHI Wenjiao, 来源:地理学报(英文版) 年份:2022
Climate change is a global environmental crisis,but there have been few studies of the effects of climate change on cereal yields on the Tibetan Plateau.We used data from meteorological stations and statistical yearbooks to assess the impac......
[期刊论文] 作者:Yong DING,Yao-ming NIU, 来源:应用数学学报(英文版) 年份:2022
For a function φ satisfying some suitable growth conditions,consider the following general disper-sive equation defined by{i?tu+φ((√-Δ)u=0,(x,t)∈Rn×R,(*)u(x,0)=f(x),f ∈ S(Rn),where φ(√-Δ)is a pseudo-differential operator with symb......
[期刊论文] 作者:Xiyan Pan,Liming Ding, 来源:半导体学报(英文版) 年份:2022
In recent years,metal halide perovskite materials have at-tracted wide attention in the fields of photovoltaics (PVs),light-emitting diodes (LEDs) and photodetectors (PDs) due to their excellent light absorption[1-6],adjustable bandgaps and......
[期刊论文] 作者:Ding Zhao,Min Qiu, 来源:光:科学与应用(英文版) 年份:2022
Nature Photonics (2022)rnhttps://doi.org/10.1038/s41566-021-00921-9rnThermal radiation is commonplace in our everyday life, exemplified by natural sunlight and infrared ther-mometers. When an object emits thermal radiation, a radiative cool......
[期刊论文] 作者:Yue He,Jinzhi Ding, 来源:科学通报(英文版) 年份:2022
Soil heterotrophic respiration (Rh) is the flux of CO2 that microbes and soil fauna release to the atmosphere by extracting the energy of organic molecules that they break down [1].Rh closes the terrestrial carbon cycle by recycling more th......
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