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The Essence of Non-Traditional Security Issues and Their Solutions 被引量:1
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作者 Huang Zhaoyu Su Qin 《Contemporary International Relations》 2009年第6期28-45,共18页
Non-traditional security issues have arisen since the 1960s,especially after the end of the Cold War,and are becoming a major issue in world security and politics.This reflects tremendous changes in the world situatio... Non-traditional security issues have arisen since the 1960s,especially after the end of the Cold War,and are becoming a major issue in world security and politics.This reflects tremendous changes in the world situation.With diverse causes and plural referent objects,non-traditional security issues cover nearly all the problems in the world today and make development difficult to sustain.This raises the question of whether human society and the earth can survive.Power politics one-sidedly stresses the role of power,endangering the harmonious development of nations and the whole of human society.It is not at all conducive to the solution of non-traditional security issues.The solution of non-traditional security issues demands cooperation from all actors in the international community.Multiple means are needed to solve these issues.Equal dialogue between all the actors,which can easily be attained,will play an effective role,as long as all actors respect each other's differences. 展开更多
关键词 The Essence of non-traditional Security Issues and Their Solutions SECURITY
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MXene Hollow Spheres Supported by a C–Co Exoskeleton Grow MWCNTs for Efficient Microwave Absorption 被引量:2
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作者 Ze Wu Xiuli Tan +4 位作者 Jianqiao Wang Youqiang Xing Peng Huang Bingjue Li Lei Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第6期76-94,共19页
High-performance microwave absorption(MA) materials must be studied immediately since electromagnetic pollution has become a problem that cannot be disregarded. A straightforward composite material, comprising hollow ... High-performance microwave absorption(MA) materials must be studied immediately since electromagnetic pollution has become a problem that cannot be disregarded. A straightforward composite material, comprising hollow MXene spheres loaded with C–Co frameworks, was prepared to develop multiwalled carbon nanotubes(MWCNTs). A high impedance and suitable morphology were guaranteed by the C–Co exoskeleton, the attenuation ability was provided by the MWCNTs endoskeleton, and the material performance was greatly enhanced by the layered core–shell structure. When the thickness was only 2.04 mm, the effective absorption bandwidth was 5.67 GHz, and the minimum reflection loss(RLmin) was-70.70 d B. At a thickness of 1.861 mm, the sample calcined at 700 ℃ had a RLmin of-63.25 d B. All samples performed well with a reduced filler ratio of 15 wt%. This paper provides a method for making lightweight core–shell composite MA materials with magnetoelectric synergy. 展开更多
关键词 MXene C-Co skeleton MWCNTS Microwave absorption
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Research on surface characteristics of non-traditional finishing
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作者 李邦忠 周锦进 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2005年第10期1152-1157,共6页
This paper reports results of investigations of some surface characteristics, and resulting performance of parts proc-essed using non-traditional finishing methods. The friction factor, precision keeping and anti-cong... This paper reports results of investigations of some surface characteristics, and resulting performance of parts proc-essed using non-traditional finishing methods. The friction factor, precision keeping and anti-conglutination performance of the finished surfaces are considered, and surface characteristics such as microtopography and machining texture were investigated. The overall performance of surfaces finished using non-traditional finishing methods was found to be significantly better than that of traditional finishing methods. 展开更多
关键词 non-traditional finishing Surface characteristics Machining texture MICROTOPOGRAPHY
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Non-traditional Dialogues between Thoughts
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作者 Konul Bunyadzade 《Journal of Philosophy Study》 2013年第7期619-626,共8页
The article considers a new and non-traditional form of dialogue. Calling it a "spiritual dialogue" or the intersection of thoughts, the author comments on this type of dialogue as a basis for interreligious, interc... The article considers a new and non-traditional form of dialogue. Calling it a "spiritual dialogue" or the intersection of thoughts, the author comments on this type of dialogue as a basis for interreligious, intercultural and intercivilizational dialogues, seeing it as their main motive force. In this study, firstly, traditional and non-traditional dialogues are compared and indicate their specific features on the basis of the work of the Eastern and the West thinkers. Then, the nontraditional dialogue has been considered in the context of modern information chaos. The last section of the article is devoted to the analysis of the basic principles of non-traditional dialogue, emphasizing the role of language. The conclusion of the article once again highlights the importance of non-traditional dialogue that starts in the inner world of the human being, which gives him a possibility to observe an object from two viewpoints and merge and these different views in the mind. 展开更多
关键词 non-traditional dialogue MONOLOGUE East-West the crossing of thoughts the exchange of ideas information chaos spiritual dialogue
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Ageing-related bone and immunity changes:insights into the complex interplay between the skeleton and the immune system
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作者 Bobin Mi Yuan Xiong +6 位作者 Samuel Knoedler Michael Alfertshofer Adriana C.Panayi Haixing Wang Sien Lin Gang Li Guohui Liu 《Bone Research》 SCIE CAS CSCD 2024年第3期502-516,共15页
Ageing as a natural irreversible process inherently results in the functional deterioration of numerous organ systems and tissues,including the skeletal and immune systems.Recent studies have elucidated the intricate ... Ageing as a natural irreversible process inherently results in the functional deterioration of numerous organ systems and tissues,including the skeletal and immune systems.Recent studies have elucidated the intricate bidirectional interactions between these two systems. 展开更多
关键词 skeleton INSIGHT IRREVERSIBLE
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"Non-Traditional" Undertakings Enable Sichuan Farmers to Get Rich
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作者 WEN CHIHUA, WANG XIAOBING & LUO MINGYAN 《The Journal of Human Rights》 2007年第3期6-8,共3页
We are publishing two stories about how in Sichuan Province, southwest China, farmers are getting rich with help from local governments by developing "non-traditional undertakings." In China's current official term... We are publishing two stories about how in Sichuan Province, southwest China, farmers are getting rich with help from local governments by developing "non-traditional undertakings." In China's current official terminology, a "non-traditional undertaking" can be anything other than the undertaking on which farmers, by tradition, depend for the bulk of their incomes-for example, crop and animal farming in most of China's farming areas. "Non-traditional" undertakings are more profitable than "traditional" ones. 展开更多
关键词 non-traditional Undertakings Enable Sichuan Farmers to Get Rich than
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Rational design of carbon skeleton interfaces for highly reversible sodium metal battery anodes
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作者 Fenqiang Luo Taiyu Lyu +5 位作者 Jie Liu Peiwan Guo Junkai Chen Xiaoshan Feng Dechao Wang Zhifeng Zheng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第5期404-413,共10页
Sodium metal batteries(SMBs)have attracted increasing attention over time due to their abundance of sodium resources and low cost.However,the widespread application of SMBs as a viable technology remains a great chall... Sodium metal batteries(SMBs)have attracted increasing attention over time due to their abundance of sodium resources and low cost.However,the widespread application of SMBs as a viable technology remains a great challenge,such as uneven metallic deposition and dendrite formation during cycling.Carbon skeletons as sodiophilic hosts can alleviate the dendrite formation during the plating/stripping.For the carbon skeleton,how to rationalize the design sodiophilic interfaces between the sodium metal and carbon species remains key to developing desirable Na anodes.Herein,we fabricated four kinds of structural features for carbon skeletons using conventional calcination and flash Joule heating.The roles of conductivity,defects,oxygen content,and the distribution of graphite for the deposition of metallic sodium were discussed in detail.Based on interface engineering,the J1600 electrode,which has abundant Na-C species on its surface,showed the highest sodiophilic.There are uniform and rich F-Na species distributed in the inner solid electrolyte interface layer.This study investigated the different Na-deposition behavior in carbon hosts with distinct graphitic arrangements to pave the way for designing and optimizing advanced electrode materials. 展开更多
关键词 Carbon skeleton Graphited structure Deposition mechanism Sodiummetal batteries
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Vacancy defect MoSeTe embedded in N and F co-doped carbon skeleton for high performance sodium ion batteries and hybrid capacitors
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作者 Dehui Yang Wentao Guo +6 位作者 Fei Guo Jiaming Zhu Gang Wang Hui Wang Guanghui Yuan Shenghua Ma Beibei Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第3期652-664,I0014,共14页
Sodium-ion batteries(SIBs) and hybrid capacitors(SIHCs) have garnered significant attention in energy storage due to their inherent advantages,including high energy density,cost-effectiveness,and enhanced safety.Howev... Sodium-ion batteries(SIBs) and hybrid capacitors(SIHCs) have garnered significant attention in energy storage due to their inherent advantages,including high energy density,cost-effectiveness,and enhanced safety.However,developing high-performance anode materials to improve sodium storage performa nce still remains a major challenge.Here,a facile one-pot method has been developed to fabricate a hybrid of MoSeTe nanosheets implanted within the N,F co-doped honeycomb carbon skeleton(MoSeTe/N,F@C).Experimental results demonstrate that the incorporation of large-sized Te atoms into MoSeTe nanosheets enlarges the layer spacing and creates abundant anion vacancies,which effectively facilitate the insertion/extraction of Na^(+) and provide numerous ion adsorption sites for rapid surface capacitive behavior.Additionally,the heteroatoms N,F co-doped honeycomb carbon skeleton with a highly conductive network can restrain the volume expansion and boost reaction kinetics within the electrode.As anticipated,the MoSeTe/N,F@C anode exhibits high reversible capacities along with exceptional cycle stability.When coupled with Na_(3)V_(2)(PO_(4))_(3)@C(NVPF@C) to form SIB full cells,the anode delivers a reversible specific capacity of 126 mA h g^(-1) after 100 cycles at 0.1 A g^(-1).Furthermore,when combined with AC to form SIHC full cells,the anode demonstrates excellent cycling stability with a reversible specific capacity of50 mA h g^(-1) keeping over 3700 cycles at 1.0 A g^(-1).In situ XRD,ex situ TEM characterization,and theoretical calculations(DFT) further confirm the reversibility of sodium storage in MoSeTe/N,F@C anode materials during electrochemical reactions,highlighting their potential for widespread practical application.This work provides new insights into the promising utilization of advanced transition metal dichalcogenides as anode materials for Na^(+)-based energy storage devices. 展开更多
关键词 MoSeTe N F co-doped honeycomb carbon skeleton Sodium-ion batteries Sodium-ion hybrid capacitor
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Skeletonization技术及其在深地震反射剖面解释中的应用 被引量:5
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作者 李文辉 高锐 王海燕 《地球物理学进展》 CSCD 北大核心 2010年第4期1161-1167,共7页
"深部探测技术与实验研究"(SINOPROBE)专项的启动揭开了中国"入地"计划的序幕.大规模的深地震反射剖面是该计划最重要的组成部分之一,如何从深地震反射剖面中获取更多有用的信息成为我们即将面临的重要课题.Skeleto... "深部探测技术与实验研究"(SINOPROBE)专项的启动揭开了中国"入地"计划的序幕.大规模的深地震反射剖面是该计划最重要的组成部分之一,如何从深地震反射剖面中获取更多有用的信息成为我们即将面临的重要课题.Skeletonization技术是西方国家在实施深部探测计划时发展的一项深地震剖面信息提取分析技术,对我们具有重要的借鉴意义.本文在研究前人工作的基础上,综述了Skeletonization技术的基本原理及其在国内外的发展,并在此基础上介绍了该技术在深地震反射剖面解释中的应用,最后结合我国刚刚启动的SINOPROBE计划对其进一步的发展进行了展望. 展开更多
关键词 skeletonIZATION 深地震反射剖面 同相轴 属性分析 SINOPROBE
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乳内动脉skeleton取材法在冠状动脉旁路移植术中的应用 被引量:4
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作者 熊利华 华平 +5 位作者 李佳 张惠忠 魏益平 王铭辉 张华 Olivier BICAL 《中国胸心血管外科临床杂志》 CAS 2007年第4期252-255,共4页
目的 评价乳内动脉skeleton取材法在冠状动脉旁路移植术(CABG)中的应用及其效果。方法 277例接受CABG的患者(其中合并糖尿病33例)在术中分离乳内动脉的过程中,仅使用剪刀和钛夹来分离乳内动脉,即不附带任何周围组织的skeleton取... 目的 评价乳内动脉skeleton取材法在冠状动脉旁路移植术(CABG)中的应用及其效果。方法 277例接受CABG的患者(其中合并糖尿病33例)在术中分离乳内动脉的过程中,仅使用剪刀和钛夹来分离乳内动脉,即不附带任何周围组织的skeleton取材法游离一侧或两侧乳内动脉,其中21例糖尿病患者取用双侧乳内动脉;并观察患者术中、术后的临床结果。采用非体外循环CABG5例,体外循环CABG272例。结果 体外循环时间60~217min,平均90.1min;主动脉阻断时间30~160min,平均53.3min。手术死亡率2.2%(6/277)。手术中见乳内动脉桥质量良好,动脉桥血流量满意;术后移植血管通畅,心绞痛症状消失。取用双侧乳内动脉和糖尿病患者亦未出现更高的胸骨感染率。手术后冠状动脉造影显示乳内动脉血管桥通畅。结论 乳内动脉skeleton取材法有良好的血管桥通畅率,对患者胸骨创伤较小,对糖尿病患者取用双侧乳内动脉不再是禁忌证。 展开更多
关键词 乳内动脉 skeleton取材法 冠状动脉旁路移植术
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Rock skeleton models and seismic porosity inversion 被引量:3
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作者 贺锡雷 贺振华 +2 位作者 王绪本 熊晓军 蒋炼 《Applied Geophysics》 SCIE CSCD 2012年第3期349-358,363,共11页
By substituting rock skeleton modulus expressions into Gassmann approximate fluid equation, we obtain a seismic porosity inversion equation. However, conventional rock skeleton models and their expressions are quite d... By substituting rock skeleton modulus expressions into Gassmann approximate fluid equation, we obtain a seismic porosity inversion equation. However, conventional rock skeleton models and their expressions are quite different from each other, resuling in different seismic porosity inversion equations, potentially leading to difficulties in correctly applying them and evaluating their results. In response to this, a uniform relation with two adjusting parameters suitable for all rock skeleton models is established from an analysis and comparison of various conventional rock skeleton models and their expressions including the Eshelby-Walsh, Pride, Geertsma, Nur, Keys-Xu, and Krief models. By giving the two adjusting parameters specific values, different rock skeleton models with specific physical characteristics can be generated. This allows us to select the most appropriate rock skeleton model based on geological and geophysical conditions, and to develop more wise seismic porosity inversion. As an example of using this method for hydrocarbon prediction and fluid identification, we apply this improved porosity inversion, associated with rock physical data and well log data, to the ZJ basin. Research shows that the existence of an abundant hydrocarbon reservoir is dependent on a moderate porosity range, which means we can use the results of seismic porosity inversion to identify oil reservoirs and dry or water-saturated reservoirs. The seismic inversion results are closely correspond to well log porosity curves in the ZJ area, indicating that the uniform relations and inversion methods proposed in this paper are reliable and effective. 展开更多
关键词 Rock physics rock skeleton models adjusting parameters seismic porosityinversion Gassmann's equation
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基于Skeleton Design的脱粒装置交互式设计系统研究 被引量:9
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作者 刘宏新 刘招金 +1 位作者 张光甫 周丽丽 《农业机械学报》 EI CAS CSCD 北大核心 2020年第12期405-416,共12页
针对联合收获机脱粒装置设计过程中装备结构复杂、参数化变形设计困难以及对设计人员专业素质要求高的问题,为寻求合适的参数化设计手段,研究了基于Skeleton Design(骨架设计)的脱粒装置交互式设计系统。以纹杆滚筒式脱粒装置为研究对象... 针对联合收获机脱粒装置设计过程中装备结构复杂、参数化变形设计困难以及对设计人员专业素质要求高的问题,为寻求合适的参数化设计手段,研究了基于Skeleton Design(骨架设计)的脱粒装置交互式设计系统。以纹杆滚筒式脱粒装置为研究对象,引入Skeleton Design过程体的概念,结合纹杆滚筒式脱粒装置的总体设计过程,实现脱粒装置的个性化设计与参数化建模。以VS(Microsoft Visual Studio)环境下VB.NET为开发语言,应用CATIA(Computer aided tri-dimensional interface application)二次开发接口技术与SQL Server数据库管理,将模型、参数、知识信息等数字化资源与操作平台组织起来,联合运用,通过人机交互的方式进行产品设计。系统测试表明,该系统能在降低设计人员专业性、提高开发产品准确性的同时,提高设计效率、缩短设计周期,并且易于理解和应用,增强了模型的知识继承与重用性,满足脱粒装置个性化设计要求。 展开更多
关键词 交互式设计系统 skeleton Design 设计过程实例树 参数化设计 脱粒装置
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Skeleton extraction of boiler flame images based on mathematical morphology 被引量:2
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作者 华彦平 于向军 吕震中 《Journal of Southeast University(English Edition)》 EI CAS 2003年第4期352-354,共3页
In this paper, a method and algorithm of skeleton extraction based on binary mathematical morphology is presented. Sequential structuring elements (SEs) is also studied, which is the key problem of skeleton extraction... In this paper, a method and algorithm of skeleton extraction based on binary mathematical morphology is presented. Sequential structuring elements (SEs) is also studied, which is the key problem of skeleton extraction. The examples of boiler flame image processing show that the detected skeletons can present the geometric shape of flame images well. 展开更多
关键词 mathematical morphology flame image skeleton extraction
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神经网络Skeletonization算法在优化锅炉运行参数中的应用 被引量:6
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作者 崔育奎 陶丽 崇培安 《锅炉技术》 北大核心 2016年第2期21-26,共6页
对将神经网络Skeletonization算法进行改进,运用到优化调整锅炉性能参数的方法,用神经网络模型预测锅炉运行中需要优化的性能参数。通过神经网络的学习,模拟性能参数的影响因素与性能参数之间的映射函数,再通过改进Skeletonization算法... 对将神经网络Skeletonization算法进行改进,运用到优化调整锅炉性能参数的方法,用神经网络模型预测锅炉运行中需要优化的性能参数。通过神经网络的学习,模拟性能参数的影响因素与性能参数之间的映射函数,再通过改进Skeletonization算法对网络模型进一步计算,找出哪些影响因素对性能参数的影响较大,为快速有效准确的机组运行优化提供指导依据和方向。这种方法不仅能为机组运行优化提供直观的理论根据,同时对锅炉的运行不产生负面影响,可以实现在线优化运行。通过计算影响因素的权重值,对性能参数准确预报,为锅炉机组的性能优化调整提供便捷、准确、全面的方案。 展开更多
关键词 超临界锅炉 性能优化 神经网络 skeletonization算法
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Oviraptorosaurian Eggs (Dinosauria) with Embryonic Skeletons Discovered for the First Time in China 被引量:7
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作者 Yen-nien CHENG JI Qiang +1 位作者 Xiao-chun WU Hsi-yin SHAN 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2008年第6期1089-1094,共6页
Two elongatoolithid dinosaur eggs from the Upper Cretaceous of Ganzhou, Jiangxi Province and the embryonic skeletons they bear are described. They represent the first oviraptorosaurian eggs with embryonic skeletons in... Two elongatoolithid dinosaur eggs from the Upper Cretaceous of Ganzhou, Jiangxi Province and the embryonic skeletons they bear are described. They represent the first oviraptorosaurian eggs with embryonic skeletons in China and provide the first example that an oospecies can be correlated to certain dinosaur taxon/taxa. The two eggs are the same as the pair of the eggs inside a female oviraptorosaurian pelvis from the same horizon of the same area in both macro- and micro-structures of the egg shells, and can he referred to the oospecies, Macroolithus yaotunensis Zhao, 1975. The morphology of the preserved part of the embryonic skeletons indicates that they may have been laid by an oviraptorid, Heyuannia huangi from Guangdong Province or a closely related oviraptorosaurian, which may have been lived in the Ganzhou area too in the Late Cretaceous. The embryonic skeletons of the two eggs are not in the same developing stage. In one of the eggs, the postzygapophysis of the preserved vertebrae are well ossified, indicating that it was just hatched. 展开更多
关键词 oviraptorosaurian Elongatoolithidae Macroolithus embryonic skeleton Upper Cretaceous JIANGXI
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Effects of Ultraviolet Radiation on Skeleton Development of Broiler Chickens 被引量:9
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作者 ZHANG Lan-xia SHI Zheng-xiang +2 位作者 WANG Xin-ying GENG Ai-lian LI Bao-ming 《Agricultural Sciences in China》 CAS CSCD 2006年第4期313-317,共5页
Seven hundred and twenty one-day-old AA broiler chickens were randomly allocated into two groups (male and female for half), and put into two identical closed houses with different lighting programs. The first house... Seven hundred and twenty one-day-old AA broiler chickens were randomly allocated into two groups (male and female for half), and put into two identical closed houses with different lighting programs. The first house was illuminated by using common incandescence light, and the second one was added with ultraviolet radiation light from the second week onwards. The birds lived in a floor with litters and free access to feed and water. Temperature, humidity and immune programs in the two houses were similar. The results showed that under ultraviolet radiation, the growth speed of skeleton increased (the shank length was significantly increased in the third week, P〈0.05; the leg muscle weight was significantly improved by 3.87%, P〈 0.05); the skeleton quality improved (the density of skeleton mineralization was significantly increased by 6.11%, P 〈 0.01; serum calcium, phosphorus, and alkaline phosphatase activity were all improved); and the growth performance was improved (feed conversion ratio was improved by 1.4% averagely; the uniformity of body weight, the shank length, the inclined body length and body height were significantly improved) in broiler chicken. 展开更多
关键词 broiler chicken skeleton growth biochemical indexes ultraviolet radiation light
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The Most Complete Pistosauroid Skeleton from the Triassic of Yunnan,China 被引量:5
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作者 ZHAO Lijun Tamaki SATO LI Chun 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2008年第2期283-286,共4页
A new specimen discovered from the Falang Formation in northeastern Yunnan represents the most complete skeleton of Triassic pistosauroids. The new specimen is referred to Yunguisaurus Cheng et al., 2006 on the basis ... A new specimen discovered from the Falang Formation in northeastern Yunnan represents the most complete skeleton of Triassic pistosauroids. The new specimen is referred to Yunguisaurus Cheng et al., 2006 on the basis of the skull features, such as the presence of a separated nasal entering the external naris, a large pineal foramen located at the frontal/parietal suture and an interpterygoid vacuity with a narrow anterior extension. The new specimen differs from the type species of Yunguisaurus liae Cheng et al., 2006 in some aspects. Most of these differences can be attributed to ontogenetic variations. The new specimen is provisionally considered as Yunguisaurus cf. liae although its relatively short snout of the skull and slenderer hyoid may not be explained ontogenetically. Whether or not the new specimen represents a different taxon has to wait for a detailed study of the whole skeleton. 展开更多
关键词 Pistosauroid Yunguisaurus complete skeleton Falang Formation late Middle Triassic Yunnan
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A spatial attentive and temporal dilated(SATD)GCN for skeleton-based action recognition 被引量:11
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作者 Jiaxu Zhang Gaoxiang Ye +4 位作者 Zhigang Tu Yongtao Qin Qianqing Qin Jinlu Zhang Jun Liu 《CAAI Transactions on Intelligence Technology》 SCIE EI 2022年第1期46-55,共10页
Current studies have shown that the spatial-temporal graph convolutional network(STGCN)is effective for skeleton-based action recognition.However,for the existing STGCN-based methods,their temporal kernel size is usua... Current studies have shown that the spatial-temporal graph convolutional network(STGCN)is effective for skeleton-based action recognition.However,for the existing STGCN-based methods,their temporal kernel size is usually fixed over all layers,which makes them cannot fully exploit the temporal dependency between discontinuous frames and different sequence lengths.Besides,most of these methods use average pooling to obtain global graph feature from vertex features,resulting in losing much fine-grained information for action classification.To address these issues,in this work,the authors propose a novel spatial attentive and temporal dilated graph convolutional network(SATD-GCN).It contains two important components,that is,a spatial attention pooling module(SAP)and a temporal dilated graph convolution module(TDGC).Specifically,the SAP module can select the human body joints which are beneficial for action recognition by a self-attention mechanism and alleviates the influence of data redundancy and noise.The TDGC module can effectively extract the temporal features at different time scales,which is useful to improve the temporal perception field and enhance the robustness of the model to different motion speed and sequence length.Importantly,both the SAP module and the TDGC module can be easily integrated into the ST-GCN-based models,and significantly improve their performance.Extensive experiments on two large-scale benchmark datasets,that is,NTU-RGB+D and Kinetics-Skeleton,demonstrate that the authors’method achieves the state-of-the-art performance for skeleton-based action recognition. 展开更多
关键词 classification. skeleton action
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Homogeneous bottom-growth of lithium metal anode enabled by double-gradient lithiophilic skeleton 被引量:9
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作者 Li Zhang Hongfei Zheng +7 位作者 Ben Liu Qingshui Xie Qiulin Chen Liang Lin Jie Lin Baihua Qu Laisen Wang Dong-Liang Peng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2021年第6期392-400,I0010,共10页
Lithium(Li) metal is considered as the most promising anode material for the next-generation high performance Li batteries.However,the uncontrollable dendritic growth impedes its commercial application.Herein,we desig... Lithium(Li) metal is considered as the most promising anode material for the next-generation high performance Li batteries.However,the uncontrollable dendritic growth impedes its commercial application.Herein,we design a 3 D Si@carbon nanofibers(CNFs)@ZnO-ZnO-Cu skeleton(SCZ) for guiding the homogeneous bottom-growth of Li metal.The top LixSi@CNFs and bottom LiyZn@CNFs layers could form conductivity and overpotential gradient to avoid the "top-growth" of Li metal.Moreover,the top lithiophilic LixSi@CNFs layer could regulate the nucleation and deposition of Li-ions even if the lithium dendrites grow out of the skeleton under high capacity Li deposition(30 mAh cm^(-2)).As a result,the SCZ-Li||LiFePO_(4) full cell delivers a high capacity of ~104 mAh g^(-1)(~94.82% capacity retention) after 2000 cycles at 5 C, elucidating the potential application of the 3 D double-gradient Li metal composite anode. 展开更多
关键词 Double-gradient skeleton Homogeneous Li growth Lithium dendrite Lithium anode Bottom growth
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A Stiffness Variable Passive Compliance Device with Reconfigurable Elastic Inner Skeleton and Origami Shell 被引量:5
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作者 Zhuang Zhang Genliang Chen +3 位作者 Weicheng Fan Wei Yan Lingyu Kong Hao Wang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2020年第5期75-87,共13页
Devices with variable stiffness are drawing more and more attention with the growing interests of human-robot interaction,wearable robotics,rehabilitation robotics,etc.In this paper,the authors report on the design,an... Devices with variable stiffness are drawing more and more attention with the growing interests of human-robot interaction,wearable robotics,rehabilitation robotics,etc.In this paper,the authors report on the design,analysis and experiments of a stiffness variable passive compliant device whose structure is a combination of a reconfigurable elastic inner skeleton and an origami shell.The main concept of the reconfigurable skeleton is to have two elastic trapezoid four-bar linkages arranged in orthogonal.The stiffness variation generates from the passive deflection of the elastic limbs and is realized by actively switching the arrangement of the leaf springs and the passive joints in a fast,simple and straightforward manner.The kinetostatics and the compliance of the device are analyzed based on an efficient approach to the large deflection problem of the elastic links.A prototype is fabricated to conduct experiments for the assessment of the proposed concept.The results show that the prototype possesses relatively low stiffness under the compliant status and high stiffness under the stiff status with a status switching speed around 80 ms. 展开更多
关键词 Variable stiffness Passive compliance device Reconfigurable skeleton Origami shell
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