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Factorizations of Fitting classes

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Frontiers of Mathematics in China 2012年第5期7卷 943-954页

作者： nanying yang Wenbin GUO N.T. VOROB'EV School of Mathematics University of Science and Technology of China Hefei 230026 China Department of Mathematics Vitebsk State University Vitebsk 210038 Belarus

In this paper, we prove that there exists a infinite set of non-trivial local Fitting classes every element in which is decomposable as a non-trivial product of Fitting classes such that every factor in the product is neither local nor a formation. In particular, this gives a positive answer to Problem 11.25 a） in The Kourovka Notebook.

关键词： Fitting class Normal Fitting class semilocal Fitting class Lockett class

A generalized CAP-subgroup of a finite group

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Science China Mathematics 2015年第10期58卷 2133-2144页

作者： GUO WenBin SKIBA Alexander N. yang nanying School of Mathematical Sciences University of Science and Technology of China Department of Mathematics Francisk Skorina Gomel State University School of Science Jiangnan University

Let A be a subgroup of a finite group G. We say that A is a generalized CAP-subgroup of G if for each chief factor H/K of G either A avoids H/K or the following holds:(1) If H/K is non-abelian, then|H :(A ∩H)K | is a p′-number for every p ∈π((A ∩H)K/K);(2) If H/K is a p-group, then |G : NG(K(A ∩H))| is a p-number. In this paper, we use the generalized CAP-subgroup to characterize the structure of finite *** new characterizations of the hypercyclically embedded subgroups of a finite group are obtained and a series of known results are generalized.

关键词： finite group generalized CAP-subgroup U-embedded subgroup solubly saturated formation p-nilpotent group supersoluble subgroup

Infinite Frobenius Groups Generated by Elements of Order 3

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Algebra Colloquium 2020年第4期27卷 741-748页

作者： nanying yang Daria Vic to rovna Lytkina Victor Danilovich Mazurov Archil Khazeshovich Zhurtov School of Science Jiangnan UniversityWuxiJiangsu 214122China Siberian State University of Telecommunications and Information Sciences 630102 Kirova 86NovosibirskRussia Sobolev Institute of Mathematics SB RAS630090 Pr.Ak.Koptjug 4NovosibirskRussia Kabardino-Balkarian State University ul.Chernyshevskogo 173 Nalchik360004Kabardino-BalkariyaRussia

A semidirect product G=F⋋H of groups F and H is called a Frobenius group if the following two conditions are satisfied:(F1)H acts freely on F,that is,fh=f for f in F and h in H only if^(h)=1 or f=1.(F2)Every non-identity element h∈H of finite order n induces in F by conjugation in G a splitting automorphism,that is,ff^(h)⋯fh^(n−1)=1 for every f∈F;in other words,the order of f^(h−1)is equal to *** describe the normal structure of a Frobenius group with periodic subgroup H generated by elements of order 3.

关键词： Frobenius group splitting automorphism character table

On Injectors of a Hartley Set of a Finite Group

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Algebra Colloquium 2018年第4期25卷 671-680页

作者： nanying yang N.T.Vorob'ev T.B.Vasilevich School of Science Jiangnan UniversityWuxiJiangsu 214122China Department of Mathematics Masherov Vitebsk State University

Let G be a finite group andНbe a Hartley set of *** this paper,we prove the existence and conjugacy ofН-injectors of G and describe the characterization of injectors via *** applications,some known results are direc... 详细信息

关键词： Hartley set injector h-radical H-function

Finite Groups Isospectral to Simple Groups

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Communications in Mathematics and Statistics 2023年第2期11卷 169-194页

作者： Maria A.Grechkoseeva Victor D.Mazurov Wujie Shi Andrey V.Vasil’ev nanying yang Sobolev Institute of Mathematics Koptyuga 4NovosibirskRussia 630090 Department of Mathematics Chongqing University of Arts and SciencesChongqing 402160People’s Republic of China School of Mathematics Suzhou UniversitySuzhou 215006People’s Republic of China School of Science Hainan UniversityHaikou 570228HainanPeople’s Republic of China School of Science Jiangnan UniversityWuxi 214122People’s Republic of China

The spectrum of a finite group is the set of element orders of this *** main goal of this paper is to survey results concerning recognition of finite simple groups by spectrum,in particular,to list all finite simple g... 详细信息

关键词： Finite group Simple group Element order Spectrum Recognition by spectrum

Efficient LEC2 activation of OLEOSIN expression requires two neighboring RY elements on its promoter

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Science China(Life Sciences) 2009年第9期52卷 854-863页

作者： CHE nanying,yang yang,LI YanDong,WANG LiLi,HUANG Ping,GAO Yin & An ChengCai The National Laboratory of Protein Engineering and Plant Genetic Engineering,School of Life Sciences,Peking University,Beijing 100871,China The National Laboratory of Protein Engineering and Plant Genetic Engineering School of Life Sciences Peking University Beijing China

As the main structural protein of oil body,OLEOSIN is highly expressed only during seed development. OLEOSIN promoter is a very useful tool for seed-specific gene engineering and seed bioreactor designing. The B3 domain transcription factor leafy cotyledon2 (LEC2) plays an important role in regulating seed development and seed-specific gene expression. Here,we first report how seed-specific B3 domain transcription factor leafy cotyledon2 (LEC2) efficiently activates OLEOSIN expression. The central promoter region of OLEOSIN,responsible for seed specificity and LEC2 activation,was determined by 5'-deletion analysis. Binding experiments in yeast cells and electrophoretic mobility shift assays showed that LEC2 specifically bound to two conserved RY elements in this region. In transient expression assays,mutation in either RY element dramatically reduced LEC2 activation of OLEOSIN promoter activity,while double mutation abolished it. Analysis of the distribution of RY elements in seed-specific genes activated by LEC2 also supported the idea that genes containing neighboring RY elements responded strongly to LEC2 activation. Therefore,we conclude that two neighboring RY elements are essential for efficient LEC2 activation of OLEOSIN expression. These findings will help us better utilize seed-specific promoter activity.

关键词： OLEOSIN LEC2 gene expression seed-specific gene RY element B3 domain transcription factor

“情报流”视角的公安指挥决策情报需求指标体系研究

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情报杂志 2023年第6期42卷 194-200页

作者：何伏刚雍泽轩杨南应中国人民公安大学北京100038

[研究目的]随着公安部于2019年建立了情报指挥中心,各地方公安机关也纷纷设立,公安机关针对科学指挥决策的研究有助于社会安全类事件的处置并减少公共安全的伤亡。该研究从信息的“来源、流通与使用”的各个环节进行分析,旨在从“情报... 详细信息

[研究目的]随着公安部于2019年建立了情报指挥中心,各地方公安机关也纷纷设立,公安机关针对科学指挥决策的研究有助于社会安全类事件的处置并减少公共安全的伤亡。该研究从信息的“来源、流通与使用”的各个环节进行分析,旨在从“情报流”视角探讨公安指挥决策情报需求指标体系。[研究方法]该研究采用文献方法确立初始的公安指挥决策情报需求指标体系后,又用Delphi方法修正和完善了指标体系。[研究结论]研究结果表明,公安指挥决策情报需求指标体系的一级指标可确定为基于客观事实要素的情报维度、警力资源要素的指挥维度和处置能力要素的行动维度以及对应3个一级指标下的10个二级指标和40个三级指标。指标体系的全面性为公安机关科学有效的决策提供了重要参考,也为学术界同仁对公安指挥决策的后续研究贡献了靶标。

关键词：公安情报决策情报情报流情报需求指标公安机关指挥决策警务指挥

厄贝沙坦与厄贝沙坦氢氯噻嗪治疗原发性高血压临床疗效对比观察

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河北医学 2011年第7期17卷 858-860页

作者：杨南英河南省南阳市卧龙区第一人民医院内科河南南阳473000

目的:对比性研究厄贝沙坦氢氯噻嗪片与厄贝沙坦片治疗原发性高血压患者的疗效。方法:回顾性分析我院收治的96例原发性高血压患者的病例资料,所有患者随机分为两组,治疗组48例用厄贝沙坦氢氯噻嗪片进行治疗,对照组48例用厄贝沙坦片进行治... 详细信息

目的:对比性研究厄贝沙坦氢氯噻嗪片与厄贝沙坦片治疗原发性高血压患者的疗效。方法:回顾性分析我院收治的96例原发性高血压患者的病例资料,所有患者随机分为两组,治疗组48例用厄贝沙坦氢氯噻嗪片进行治疗,对照组48例用厄贝沙坦片进行治疗,治疗结束后对两组患者的临床疗效进行对比分析。结果:治疗组的疗效明显高于对照组,差异明显有统计学意义(P<0.05)。结论:厄贝沙坦氢氯噻嗪片治疗原发性高血压的疗效明显高于厄贝沙坦片,且副作用小,对于为降低血压而必须联合用药的患者是合理选择。

关键词：厄贝沙坦氢氯噻嗪片厄贝沙坦片原发性高血压

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综采工作面采煤工艺技术实践研究

能源与节能 2022年第1期 184-186页

作者：杨楠英晋能控股煤业集团有限公司云岗矿山西大同037017

当下,中国对煤炭资源的需求量不断加大,提高采矿工作的效率和效果、实现煤炭资源的最大利用化成为关键任务。鉴于此,企业在综采工作面上不断研发、优化采煤工艺技术,力图早日实现采矿生产的自动化、科技化和机械化。介绍了综采工作面定... 详细信息

当下,中国对煤炭资源的需求量不断加大,提高采矿工作的效率和效果、实现煤炭资源的最大利用化成为关键任务。鉴于此,企业在综采工作面上不断研发、优化采煤工艺技术,力图早日实现采矿生产的自动化、科技化和机械化。介绍了综采工作面定义、设备、组织流程等内容,分析了综采工作面采煤工艺特点,并探讨了综采工作面采煤工艺技术的实践应用,以期为现代煤矿采煤中的技术选择提供参考。

关键词：综采工作面采煤工艺技术采煤位置监测煤岩界面识别