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[期刊论文] 作者:程惠亭,郝文斌,卫兵兵, 来源:化学工程 年份:2022
指出气体管道压降计算中,传统的等温公式在压降较大时误差大的原因是平均密度假设.由于Cheng-Hao公式推导过程不引入该假设,因此,可以判断Cheng-Hao公式应比传统的等温公式更准确.为证明上述判断...,利用等温公式、韦默思公式、潘汉德公式和Cheng-Hao公式同时计算了天然气长输管道的压降进行对比.结果表明:在管道长度10-250 km、压降在0-50%的范围内,Cheng-Hao公式和韦默思公式...、潘汉德公式的计算结果吻合,说明Cheng-Hao公式有很好的压降范围的普适性,而传统的等温公式在压降达到...
[期刊论文] 作者:PengFei Cui,WanLin Guo, 来源:中国科学:物理学 力学 天文学(英文版) 年份:2022
first put forward by Riedel and Rice with C* as the dominating parameter and developed by Xiang and Guo...
[期刊论文] 作者:吴启凤,丁晨雨,何腾霞,陈梦苹,张漫漫, 来源:微生物学通报 年份:2022
羟胺氧化还原酶(hydroxylamine oxidoreductase,HAO)属于多血红素蛋白酶家族,每个单体由7个电子转移血红素和1个催化血红素组成.HAO既可分别催化羟胺和肼的氧化反应,也可催化羟胺...、一氧化氮及亚硝酸盐的还原反应.不同硝化细菌中,HAO的最适温度、pH、底物、产物特异性及酶抑制剂等存在差异.作为生物硝化过程的关键酶,HAO在提升生物脱氮速率及清除硝化中间产物(羟胺)对生物的毒害方面发挥重要作用....本文系统综述了 HAO在脱氮微生物中的分布、蛋白结构、表达调控及其活性等,总结其在不同硝...
[期刊论文] 作者:Zhi-Hong Liu,Shanjie Tang,Wentao Hu,Ruo Lv,Hailiang Mei,Rongxin Yang,Xianwei Song,Xiaofeng Cao,Dong Wang, 来源:中国科学:生命科学(英文版) 年份:2022
breeding,and some cy-tosine base editors (CBEs) have been developed for this purpose (Komor et al.,2016;Zong...
[期刊论文] 作者:董伟萍,周宗福, 来源:应用数学 年份:2022
本文研究一类分数阶微分方程的多点边值问题.利用Guo-krasnoselskii不动点定理和Leggett-Williams不动点定理,得到正解的存在性和多重性结果.通过一个简单的例子说明了主要结果的应用...By means of the Guo-Krasnoselskii fixed...
[期刊论文] 作者:, 来源:中国标准化(英文版) 年份:2022
China-Russia Task Force on Civil Aircraft was held on November 30 in virtual form, which was moderated by Guo...
[期刊论文] 作者:Li Qing, 来源:北京周报(英文版) 年份:2022
On January 21, Guo Junhua, a local of Yanqing District, Beijing, entered the closed-loop management system.rn...
[期刊论文] 作者:罗茜,许勇强, 来源:闽南师范大学学报(自然科学版) 年份:2022
研究一类含两项分数阶导数的零边值条件的微分方程,在非线项满足与线性算子的第一特征值有关的假设条件下,应用不动点指数理论和Guo-Krasnoselskii不动点定理得到边值问题正解的存在性....
[期刊论文] 作者:, 来源:中国中药杂志 年份:2022
为探究狼毒效应部位中主要萜类成分在醋制过程中的结构转化机制,将狼毒萜类成分ent-11α-hydroxyabicta-8(14),13(15)-dien-16,12-olide(HAO)、jolkinolide...
[期刊论文] 作者:Shuangjian GUO, 来源:数学研究及应用 年份:2022
In this paper,we consider Lie triple systems with derivations.A pair consisting of a Lie triple system and a distinguished derivation is called a LietsDer pair.We define a cohomology theory for LietsDer pair with coefficients in a represent......
[期刊论文] 作者:Zong-Kuan Guo, 来源:中国科学:物理学 力学 天文学(英文版) 年份:2022
Gravitational waves (GWs) are a marvelous prediction of general relativity.The GW waveform from a compact binary coalescence is theoretically predictable,and different binary systems emit GWs in different frequency bands.The fre-quencies of......
[学位论文] 作者:闫世钊, 来源:中国科学院大学(中国科学院国家授时中心 年份:2022
本论文主要介绍了作者基于中国科学院国家授时中心(National Time Service Center,Chinese Academy of Sciences,NTSC)昊平40米射电望远镜(Hao-ping...
[期刊论文] 作者:Guo Wei YU, 来源:数学学报(英文版) 年份:2022
For a monotone twist map,under certain non-degenerate condition,we showed the exis-tence of infinitely many homoclinic and heteroclinic orbits between two periodic neighboring minimal orbits with the same rotation number,which indicates cha......
[期刊论文] 作者:Xin-Peng Guo,Yong-Quan Guo,Lin-Han Yin,Qiang He, 来源:中国物理B(英文版) 年份:2022
The dilute magnetic intermetallic compound(DMIC)is an extended study of the dilute magnetic semiconductor.The giant magnetic effect and room temperature ferromagnetism are induced by doping minor 3d transition metal into REIn3 intermetallic......
[期刊论文] 作者:洪艳华,刘小龙,艾仁达,侯绍兵,杨云,蓝俊麟,袁智勇,段玉宝, 来源:四川动物 年份:2022
保存于西南林业大学生物多样性保护学院标本室(SWFU006882).根据形态特征,鉴定为广西华珊瑚蛇Sinomicrurus peinani Liu, Yan, Hou, Wang, Nguyen, Murphy, Che, and Guo...
[期刊论文] 作者:Xinzheng Guo,Bo Chen, 来源:中国神经再生研究(英文版) 年份:2022
Retinal ganglion cells (RGCs) are the sole output neurons of the retina that project long axons and transmit visual information to the brain. The degeneration of RGCs leads to irreversible vision loss in a variety of pathological states, in......
[期刊论文] 作者:Fuzheng Guo,Sheng Zhang, 来源:中国神经再生研究(英文版) 年份:2022
Hypoxia-inducible factors (HIFs) are transcriptional regulators playing important roles in adapting various types of cells to physiological and pathological hypoxia cues. Three structurally related, oxygen-sensitive HIFα proteins have been......
[期刊论文] 作者:Cui-Xian Guo,Shu Chen, 来源:中国物理B(英文版) 年份:2022
We study the one-dimensional general non-Hermitian models with asymmetric long-range hopping and explore how to analytically solve the systems under some specific boundary conditions.Although the introduction of long-range hopping terms pre......
[期刊论文] 作者:Chun-Liu Guo,Xiao-Xi Huang, 来源:海南医科大学学报(英文版) 年份:2022
Liver cirrhosis is the terminal stage caused by various chronic liver injury. There are many complications and death in the late stage. There is no effective treatment method at present. In recent years, with the rapid development of regene......
[期刊论文] 作者:Jian-hua YIN,Ji-yun GUO, 来源:应用数学学报(英文版) 年份:2022
A graphic sequence π=(d1,d2,...,dn)is said to be forcibly k-edge-connected if every realization of π is k-edge-connected.In this paper,we obtain a new sufficient degree condition for π to be forcibly k-edge-connected.We also show that th......
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