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一些capable 3-群 被引量:3
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作者 李志秀 《安徽大学学报(自然科学版)》 CAS 北大核心 2020年第3期22-24,共3页
对于一个给定的群G,如果能有另外的一个群H,满足H/Z(H)■G,则称G是capable群,或称G可以充当中心商.对capable群的研究在p-群分类问题中起着相当重要的作用.借助群的扩张理论,通过换位子计算,得到了一些特殊的3-群为capable群,并且由群G... 对于一个给定的群G,如果能有另外的一个群H,满足H/Z(H)■G,则称G是capable群,或称G可以充当中心商.对capable群的研究在p-群分类问题中起着相当重要的作用.借助群的扩张理论,通过换位子计算,得到了一些特殊的3-群为capable群,并且由群G构造出了群H,使得H/Z(H)■G. 展开更多
关键词 capable 3-群 循环扩张 自同构
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一些特殊的capable群 被引量:5
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作者 李志秀 《晋中学院学报》 2010年第3期27-28,共2页
若存在一个群H,使得H/Z(H)同构于群G,则称群G为capable群.对capable群的研究在p-群的分类问题中起着至关重要的作用.运用群的循环扩张理论,通过换位子计算可以得到与Baer关于交换的capable群G完全一致的结果.
关键词 capable 交换群 德特肯群
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内亚循环capable群性质研究 被引量:1
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作者 李志秀 《山东科学》 CAS 2015年第5期77-79,共3页
本文研究了内亚循环p-群G满足capable群的条件,得到了这类群为capable p-群的充要条件。并由内亚循环p-群G构造得出了群H,满足H/Z(H)同构于G。
关键词 capable 内亚循环群
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特殊的p^(2m+1)阶capable群性质研究
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作者 李志秀 《晋中学院学报》 2015年第3期4-5,共2页
研究了特殊的p2m+1阶capable群满足capable群的条件,得到了这类群为capable群的一个充要条件.并且由这类群G构造得出了群H,H/Z(H)同构于G.
关键词 capable p^2m+1阶群 性质
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极大类的capable 3-群 被引量:2
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作者 李志秀 《安徽大学学报(自然科学版)》 CAS 北大核心 2021年第1期14-16,共3页
对于一个给定的群G,如果能有另外一个群H满足H/Z(H)■G,则称G是capable群,或称G可以充当中心商.对capable群的研究在p-群分类问题的研究中起着相当重要的作用.借助群的扩张理论,通过换位子计算,得到一些极大类3-群为capable群,并且由群... 对于一个给定的群G,如果能有另外一个群H满足H/Z(H)■G,则称G是capable群,或称G可以充当中心商.对capable群的研究在p-群分类问题的研究中起着相当重要的作用.借助群的扩张理论,通过换位子计算,得到一些极大类3-群为capable群,并且由群G构造出了群H,使得H/Z(H)■G. 展开更多
关键词 capable 3-群 循环扩张 自同构
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一些capable群
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作者 李志秀 《安徽大学学报(自然科学版)》 CAS 北大核心 2022年第6期8-11,共4页
对于一个给定的群G,如果能有另外的一个群H,使得H/Z(H)?G,则称群G是capable群,或称群G可以充当中心商.在p-群分类问题中对capable群进行的研究起着相当重要的作用.研究一些其所有的极大子群都同构且幂零类是2的capable群G,借助群的扩张... 对于一个给定的群G,如果能有另外的一个群H,使得H/Z(H)?G,则称群G是capable群,或称群G可以充当中心商.在p-群分类问题中对capable群进行的研究起着相当重要的作用.研究一些其所有的极大子群都同构且幂零类是2的capable群G,借助群的扩张理论,通过换位子计算,得到这类群是capable群的充要条件,并且由群G构造得到了群H,使得H满足H/Z(H)?G. 展开更多
关键词 capable 循环扩张 自同构
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方次数是3的capable 3群
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作者 李志秀 《扬州大学学报(自然科学版)》 CAS 北大核心 2022年第4期9-11,共3页
为研究p-群结构,运用循环扩张理论,详细讨论了方次数是3的3~5阶capable群的分类.本文所得结果为深入研究p-群结构及其他一些相关数学问题提供了依据.
关键词 capable 循环扩张 自同构
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Investigation of Capable Fault and Identification of Diffuse Seismicity
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作者 Zhang YumingInstitute of Geology,SSB,Beijing 100029,China 《Earthquake Research in China》 1996年第4期72-77,共6页
Based on the author’s experience in the siting of nuclear power plants,some important points and methods for investigation of capable fault and the identification of diffuse seismicity are discussed in the paper.
关键词 capable FAULT DIFFUSE SEISMICITY
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Village Governance by Economic Capable Persons: A New Pattern of Rural Politics in China
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作者 卢福营 《China Economist》 2012年第4期98-104,共7页
Since the 1980s, a whole class of economic capable persons has emerged along with China's rural economic development. This class actively participates in grassroots politics and even leads local village governance, c... Since the 1980s, a whole class of economic capable persons has emerged along with China's rural economic development. This class actively participates in grassroots politics and even leads local village governance, creating a unique, novel pattern of village governance in China. This pattern has far-reaching implications for the use of power in China's villages and for the management of grassroots communities. First, it represents democracy-based authoritarian politics (democracy-authority politics) and a transition away from traditional rural village "squireship" governance. Second, governance by economic capable persons surpasses the unitary, centralized People's Commune governance, replacing it with a pluralistic model that utilizes grass-roots community management. Third, the self-governing pattern that is emerging, wherein the general public participates in a government that is dominated by an economic capable persons, demonstrates a modification of ideal villager self-governance and also a pragmatic invention based on local political realities. In the long run, this new class emergence has the potential to evolve into a new type of localized politics; with further economic differentiation in rural areas, village governance will become increasingly diversified, where governing by capable persons will be just one feasible option. This pattern is already becoming common in many rural areas, especially those where the nonagricultural economy is relatively developed 展开更多
关键词 village governance by economic capable persons elite politics ruralgovernance and management innovation
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有关capable群的一些性质
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作者 李志秀 《山西大同大学学报(自然科学版)》 2019年第6期30-31,共2页
一个群G,如果有另外的一个群H,满足H/Z(H),称G是capable群,或称G可以充当中心商。文中得到了一类阶群p2m+1不是capable群,并且得到了一个特殊的3-群为capable群,文中由群构造出了群G,使得H/Z(H)=G.
关键词 capable 阶群
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Screening for a new Streptomyces strain capable of efficient keratin degradation 被引量:3
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作者 CHAO Ya-peng XIE Fu-hong YANG Jing LU Jing-hua QIAN Shi-jun 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第9期1125-1128,共4页
Keratinous wastes could be degraded by some microorganisms in nature. Native human foot skin (NHFS) was used as sole nitrogen source to screen microorganisms with keratin-degrading capability. From approximately 200... Keratinous wastes could be degraded by some microorganisms in nature. Native human foot skin (NHFS) was used as sole nitrogen source to screen microorganisms with keratin-degrading capability. From approximately 200 strains, a strain of Streptomyces sp. strain No. 16 was found to possess the strongest keratinolytic activity, and the total activity in the culture was 110 KU/ml with specific activity of 2870 KU/mg protein (KU: keratinase unit). Substrate specificity test indicated that the crude keratinase could degrade keratin azure, human hair, cock feathers and collagen. The optimal pH of the crude keratinase ranged from 7.5 to 10 and the temperature ranged from 40℃ to 55℃. Metal chelating agent ethylenediamine tetraacetic acid obviously stimulated the keratinolytic activity but suppressed the proteolytic activity. To our knowledge, this is the first report on specific induction of keratinases by NHFS from an actinomycete. Moreover, excellent characteristics of its crude keratinase may lead to the potential application in waste treatment and recovery, poultry and leather industry, medicine, and cosmetic development. 展开更多
关键词 keratinolytic capability Streptomyces sp. native human foot skin (NHFS) KERATINASE substrate specificity
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亚循环的Capable p-群 被引量:6
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作者 李志秀 《数学的实践与认识》 CSCD 北大核心 2014年第22期232-235,共4页
给定了一个群G,若存在另外的一个群H,能够使得H/Z(H)≌G,则称G是capable群.对cable群进行研究在p-群分类问题的研究中起着相当重要的作用.完全决定了亚循环的capable p-群G.
关键词 capable 亚循环p-群
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内交换的capable p-群性质研究 被引量:3
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作者 李志秀 《数学的实践与认识》 北大核心 2016年第14期294-296,共3页
研究了内交换p-群G是capable群需要满足的条件,得到了这类群是capable群的充要条件.并由内交换p-群G构造得到了群H,使得H满足HH/Z(H)≌G.
关键词 capable 内交换p-群
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p^n(n≤4)阶capable群 被引量:1
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作者 李志秀 《数学的实践与认识》 北大核心 2015年第12期246-251,共6页
一个群G能够充当另外一个群H的中商群,称群G是capable群.考虑的问题是:对于阶为p^n(n≤4)的p-群G,哪些群是capable群?完全决定了p^n(n≤4)阶的capable p-群G.
关键词 capable p^4阶群
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China Flies Spacecraft Capable of Manned Trip 被引量:1
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作者 Benjamin Kang Lim 郭秀滇 《当代外语研究》 1999年第12期1-2,共2页
1999年11月2日晨6时30分,在酒泉卫星发射中心,“神舟”号试验飞船被送入太空,在太空遨游了21小时后,飞船在内蒙古自治区中部地区成功着陆!是我国自1992年实施载人航天工程以来实现的重大突破! 根据飞行和工作方式的不同,载人航天器分... 1999年11月2日晨6时30分,在酒泉卫星发射中心,“神舟”号试验飞船被送入太空,在太空遨游了21小时后,飞船在内蒙古自治区中部地区成功着陆!是我国自1992年实施载人航天工程以来实现的重大突破! 根据飞行和工作方式的不同,载人航天器分为载人飞船,载人空间站和航天飞机三类。载人飞船按乘坐人数分为单人式飞船和多人式飞船,按运行范围分为卫星式载人飞船和登月载人飞船,载人空间站又称为轨道站或航天站。可供多名航天员居住和工作。航天飞机既可作为载人飞船和空间站进行载人航天活动,又是一种可重复使用的运载器。 目前,世界上只有美国和俄罗斯掌握了载人航天技术。前苏联于1961年4月12日发射了人类第一艘载人飞船,航天员加加林乘坐飞船绕地球一周并安全返回地面,美国于1962年2月20日发射了第一艘载人飞船。这两个国家在发射载人飞船之前,都进行过多次无人飞船发射试验。 本文报道了“神舟“号飞船九霄揽月的壮举,同时还提供了一些鲜为人知的背景资料。】 展开更多
关键词 载人飞船 载人航天 航天飞机 In China Flies Spacecraft capable of Manned Trip 载人空间站
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MAV-UAV combat organization's force formation plan generation based on NSGA-Ⅲ
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作者 ZHONG Yun WAN Lujun ZHANG Jieyong 《Journal of Systems Engineering and Electronics》 2026年第1期307-317,共11页
Manned aerial vehicle-unmanned aerial vehicle(MAV-UAV)combat organization is a MAV-UAV combat collective formed from the perspective of organization design theory and methodology,and the generation of force formation ... Manned aerial vehicle-unmanned aerial vehicle(MAV-UAV)combat organization is a MAV-UAV combat collective formed from the perspective of organization design theory and methodology,and the generation of force formation plan is a key step in the organizational planning.Based on the description of the problem and the definition of organizational elements,the matching model of platform-target attack wave is constructed to minimize the redundancy of command and decision-making capability,resource capability and the number of platforms used.Based on the non-dominated sorting genetic algorithmⅢ(NSGA-Ⅲ)framework,which includes encoding/decoding method and constraint handling method,the generation model of organizational force formation plan is solved,and the effectiveness and superiority of the algorithm are verified by simulation experiments. 展开更多
关键词 manned-unmanned aerial vehicle combat organization force formation plan command and decision-making capability resource capability non-dominated sorting genetic algorithmⅢ(NSGA-Ⅲ)
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Assessing spatial equity in employment opportunities in low-rent residential areas: Evidence from Urumqi,China
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作者 FAN Liqin LEI Jun +1 位作者 ZHANG Shubao DUAN Zuliang 《Regional Sustainability》 2026年第2期95-115,共21页
Differentiation in housing costs reinforces the concentration of low-income groups in lowrent residential areas through residential location sorting,making the surrounding employment opportunity environment a crucial ... Differentiation in housing costs reinforces the concentration of low-income groups in lowrent residential areas through residential location sorting,making the surrounding employment opportunity environment a crucial perspective for assessing urban inclusiveness.Using residential areas as the unit of analysis,this study proposed a multidimensional framework for evaluating the spatial equity of urban employment by jointly capturing disparities between opportunity supply and access across three dimensions: employment opportunity quantity,wage levels,and commuting accessibility.In addition,we compared spatial differentiation among residential area types under rentbased stratification.This study focused on Urumqi,a major city in Northwest China,and integrated multisource geospatial data for 3465 residential areas,including points of interest(POIs),online job postings,and rental data for residential areas.Empirical analyses were conducted using the Gini coefficient,location quotient,and Geographically Weighted Regression(GWR) model.The findings reveal marked disparities in employment access across ring road areas and rent-based groups.In the urban core,low-rent residential areas benefit from relatively favorable commuting conditions;however,the accessible employment opportunities are concentrated in low-wage service sectors.In the peripheral zone,low-rent residential areas face a dual disadvantage of limited nearby employment supply and longer commuting distances.Even when spatial conditions are comparable,low-rent residential areas are systematically disadvantaged relative to non-low-rent residential areas in realized access to both employment opportunity quantity and wage levels.This pattern indicated that capability constraints impede the conversion of spatial resources into effective access.Further analyses highlight housing costs,infrastructure quality,and residential location as key associated factors.The findings underscored the importance of coordinated,targeted policies in affordable housing delivery,the spatial distribution of employment opportunities,and improvements in transport accessibility to promote urban spatial justice. 展开更多
关键词 Housing costs Spatial equity Low-rent residential areas Employment opportunities Capability constraints
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The Impact of AI Avalanche on Society and Human Behavior
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作者 Petre Roman 《Philosophy Study》 2026年第2期155-165,共11页
This paper is discussing several features of the impact of AI(artificial intelligence)on society and human behavior.It includes(1)the question if the AI can outperform the intelligent and creative capacity of humans,(... This paper is discussing several features of the impact of AI(artificial intelligence)on society and human behavior.It includes(1)the question if the AI can outperform the intelligent and creative capacity of humans,(2)if AI capabilities could show criticality and causal emergence,(3)the predictive capacity of AI,(4)the costs related to the learning process and operating AI,and(5)the loss of consensual reality and the rise of deepfakes in the AI era.AI involves considerable systemic risks impacting the social,economic,cultural,and environmental systems.Our will is kept in accordance with how the things around us are presented to us and that is precisely what AI is also doing.For us circumstances define a situation or a moment.For AI the circumstances are just statistical relationships.AI does not have its own values but incorporates the values on which it is trained.The imaginative gap between humans and AI is not just big;it’s of an essential nature.We want not just technology in the online world;we want a moral attitude. 展开更多
关键词 AI capabilities AI impact CREATIVITY brain CRITICALITY integrated information causal emergence predictive capacity AI costs risk consensual reality
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A Year of Solid Progress,A New Chapter Ahead
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作者 《China Today》 2026年第2期16-19,共4页
Chinese President Xi Jinping’s New Year message summarized an important year of steady progress as the country prepares to launch its 15th Five-Year Plan.“Our economic strength,scientific and technological abilities... Chinese President Xi Jinping’s New Year message summarized an important year of steady progress as the country prepares to launch its 15th Five-Year Plan.“Our economic strength,scientific and technological abilities,defense capabilities,and composite national strength all reached new heights.”declared President Xi Jinping in his 2026 New Year message on De-By CHINA TODAY cember 31,2025,offering a succinct summary of China’s development over the past year,marked by resilience,progress,and renewed confidence as the country stands at the threshold of a new development phase. 展开更多
关键词 composite national strength CONFIDENCE PROGRESS economic strength five year plan scientific technological abilities resilience defense capabilities
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Why China’s 15th Five-Year Plan Matters Far Beyond Its Boarders
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作者 THOMAS KARLSSON 《China Today》 2026年第4期48-51,共4页
For the global economy,China’s 15th Five-Year Plan signals a transition from growth driven by sheer volume to growth driven by systemic capability.AS the National People’s Congress(NPC),China’s top legislature,held... For the global economy,China’s 15th Five-Year Plan signals a transition from growth driven by sheer volume to growth driven by systemic capability.AS the National People’s Congress(NPC),China’s top legislature,held its annual session from March 5 to 12 in Beijing,lawmakers deliberated on the central government’s annual work report.This year,they also examined a draft outline of China’s 15th Five-Year Plan(2026-2030)for National Economic and Social Development,which will anchor policy priorities for the period up to 2030. 展开更多
关键词 China economic growth systemic capability five year plan national people s congress
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