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Search Results: 1 - 10 of 1394 matches for " 陈云盟 "
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多空中机器人情感表达关键问题研究
Research on the Key Issues of Emotion Expressing Behavior of Multiple Aerial Robots
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Artificial Intelligence and Robotics Research (AIRR) , 2014, DOI: 10.12677/AIRR.2014.34008
Abstract:
本文在基于拉班运动分析(Laban Movement Analysis, LMA)的情感表达轨迹链自动设计方法的基础上,针对多空中机器人的情感表达问题,在情感表达中融入了队形因素,提出了基于队形变化的情感表达策略。针对多空中机器人舞蹈的同步性问题,本文提出了基于音乐特征的同步方法。本文以跟踪节拍的摆动运动为例,将节拍信号作为摆动运动的参考信号,通过相位比较器和修正算法修正相位和振幅误差,进行空中机器人基于运动轨迹的情感表达实验和多空中机器人基于音乐节拍的同步实验,验证了方法的正确性。
On the basis of the LMA based trajectory chain generating method, which can autonomously design certain trajectory chains for emotion expression, an emotional expressing strategy based on formation changes is mentioned after the formation factor is included in emotional expressing. Then, a synchronization method based on music characteristics is raised according to the syn-chronization issues of multiple aerial robots’ dancing. Taking the swing movement tracking beats as an example, the beat signal is regarded as reference signal of swing movement and the error of phase and amplitude is rectified according to phase comparator and regulated algorithm. Emo-tional expressing experiments based on movement trajectory and synchronization experiments based on music beat signal are conducted on the aerial robots’ platform and the validity of the method is proved.
琴唇万代兰食源性欺骗传粉研究
张自斌,,,,,,,陈云,邓振海,赵秀海
北京林业大学学报 , 2015, DOI: 10.13332/j.1000-1522.20140020
Abstract: 食源性欺骗传粉是兰科植物的一种重要传粉机制。根据琴唇万代兰的花部特征及较低的自然结实率,我们推测其有性繁殖采取食源性欺骗传粉机制,为了验证推测,在广西雅长兰科植物国家级自然保护区对其进行传粉生物学观察。野外传粉观察结果表明:琴唇万代兰花朵自交高度亲和,但其传粉过程依赖于传粉昆虫;赤足木蜂和牯岭熊蜂都是琴唇万代兰的有效传粉昆虫,其中赤足木蜂为主要传粉昆虫;2种传粉昆虫的访花行为主要集中在2个阶段:68%发生在10:00—12:30,16%发生在13:30—14:30。周边与琴唇万代兰同期开花的植物有阔叶十大功劳和中国旌节花,阔叶十大功劳花朵为明亮的黄色,与琴唇万代兰花朵上斑块的颜色相近。我们认为琴唇万代兰花朵通过挥发芳香性气味和利用花朵上黄色斑块等特征来欺骗传粉昆虫进入花中觅食,实现有效传粉的目的,为食源性欺骗传粉机制。
基于张量法的电力系统病态潮流求解与PV曲线绘制
Solution of Ill-Conditioned Load Flow for Power System and the Drawing of PV-Curve Based on Tensor Method
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姜山, 杜一
Advances in Energy and Power Engineering (AEPE) , 2015, DOI: 10.12677/AEPE.2015.34011
Abstract:
本文提出一种求解电力系统病态潮流并绘制PV曲线的新方法,称之为张量法。张量法基于非线性方程组的二次模型进行迭代。相对于传统牛顿法,张量法在每次迭代中几乎不需要更多的存储空间和运算量。对于良态系统潮流的计算,张量法的计算效率与传统牛顿法相差不多,对于病态的潮流问题,张量法绘制PV曲线的运算效率和可靠性都远高于牛顿法。对IEEE-5, 11, 13节点系统进行了潮流计算,结果表明张量法优于牛顿法。
This paper presents a new method called tensor method to solve the ill-conditioned load flow of power system and draw the PV-curve. The tensor method bases each iteration on the quadratic model of the nonlinear function. Compared to Newton method, the model requires hardly more storage or arithmetic operations per iteration. The tensor method is as effective as Newton method on well-conditioned problems, and performs better on ill-conditioned problems for drawing the PV-curve. IEEE-5, 11, 13 bus systems are calculated with both tensor method and Newton method. It is found that tensor method is better than Newton method.
反应风格与人格特质的关系
The Relationship between Response Styles and Personality Traits
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, 郭庆科
Advances in Psychology (AP) , 2016, DOI: 10.12677/AP.2016.63042
Abstract:
反应风格是指被试基于某些固定的倾向而不是基于具体的测验内容对题目做出选择。传统观点认为反应风格是一种系统的误差,而新近的观点发现反应风格很有可能是一种独特的人格变量。鉴于此,本研究在后者的视角下试图检验反应风格的类特质属性以及反应风格的影响因素。本研究采用大五人格问卷NEO-FFI以及语义反转的NEO-FFI分别对1200名高中生和1200名大学生进行了前后两次施测,时间间隔为1个月。计算两次测验中同一对题目相同答案的次数为反应风格的指标。结果发现:1) 中国被试默认肯定反应风格最多,依次是默认否定、折中、极端否定和极端肯定风格,且各种反应风格并不是独立存在的。2) 随着受教育程度的提高,各种反应风格均显著下降。性别在默认肯定风格和折中风格上主效应显著,性别与受教育程度在极端肯定风格以及折中风格上的交互作用显著。3) 各反应风格与人格特质的不同维度均存在不同程度和不同方向的相关。
Response styles refer to respondents’ systematic tendency to answer questionnaire items on some basis other than the specific item content. The traditional opinions view response styles as a kind of system error, but the new viewpoints find that the response styles are more likely to be unique personality variables. Due to this, the present study is trying to examine the trait-like properties and the effect factors of response styles in the latter perspectives. This research adopts the Big Five Personality questionnaire NEO-FFI and semantic reversal of NEO-FFI measures 1200 high school students and 1200 undergraduates twice one month in between calculating the number of the same answer at each pair of items as response styles indicators in two tests. The findings were as follows: 1) The acquiescent response style is more than other response styles in Chinese respondents, then the disacquiescence response style, midpoint response style, positive extreme response style and negative extreme response style. All kinds of response styles are not independent. 2) All response styles were significantly reduced with the higher education. The main effect of gender on the acquiescent response style and midpoint response style were significant, and the interaction effect was significant on midpoint response style and positive extreme response style. 3) Each response styles were related to personality traits at different degree and direction.
YBa_(1.9)Cu_3O_(7-δ)中集体磁通蠕动对临界电流密度的影响

科学通报 , 1994,
Abstract: 实验结果表明,在YBa_2Cu_3O_(7-δ)系,人为地使化学成分偏离理想配比,将引入新的小尺度缺陷并成为有效钉扎中心,使临界电流密度明显提高,且导致J_c(H)的非单调关系(即对应于磁化曲线的“鱼尾效应”).有关高温超导体中的“鱼尾效应”的起源,迄今虽有几种解释模型,但仍缺乏统一的认识,其重要原因是由于高温超导体中有效钉扎势很小而运行温度又较高,
YBa_(1.9)Cu_3O_(7-δ)中集体磁通蠕动对临界电流密度的影响

科学通报 , 1994,
Abstract: 实验结果表明,在YBa_2Cu_3O_(7-δ)系,人为地使化学成分偏离理想配比,将引入新的小尺度缺陷并成为有效钉扎中心,使临界电流密度明显提高,且导致J_c(H)的非单调关系(即对应于磁化曲线的“鱼尾效应”).有关高温超导体中的“鱼尾效应”的起源,迄今虽有几种解释模型,但仍缺乏统一的认识,其重要原因是由于高温超导体中有效钉扎势很小而运行温度又较高,
浙江白膠香(楓香脂)的采收加工法

中国中药杂志 , 1959,
Abstract: <正>浙江所产的白膠香,它的原植物屬于金缕梅科的楓香树(Liqudambarformosana),中国药学大辞典,列为漆树科,与实际有出入。该植物是一种自生山地的落叶乔木。树身高聳,可达15—20米,直徑0.5—1米左右,幼树栓皮表面呈灰褐色而平滑,老时变褐色,外皮显得很粗糙。叶互生,嫩叶多作五裂,基部掌狀,边緣有小鋸齿,叶片初为綠色,深秋时往往会转紅黄色而脫落。花單性,雌雄同株,雄花成总狀花序,无花萼及花冠,雌花为球形头狀花序,花梗細長。果实为莉果,外面密被多数毛刺,是由細長宿存的花柱和苞片愈合而成,成熟后呈暗褐色,采收亦供药用,称“路路通”(但一般多自幼树间采摘,故产量較多)。
浙江省白朮丰产經驗

中国中药杂志 , 1959,
Abstract: <正>浙江省临安县(原余杭县)石瀨乡茶叶試驗場1957年开始利用茶园隙地和一部分新开垦的土地搞药材副业生产。当年白朮平均亩产量为鲜朮737斤,最高的有0.25亩收获2,000斤左右。1958年由于該埸重視总結生产經驗,建立分区負责制,改进栽培技术,贯徹了三抓(抓思想、抓季节、抓檢查)、三及时(及时种、及时管、及时收)的原則,因而放出高产衛星,总产量較57年增
被越南侵占的中国南沙群岛岛礁的时空分布特征及战略格局

热带地理 , 2015,
Abstract: ?以南海海域200m等深线水深图和南沙群岛海域11幅1﹕250000海图以及1﹕800000海图为基础数据,使用arcgis10.1,采用墨卡托投影,cgcs2000坐标系对海图进行配准并进行矢量化处理,提取图中水深点、岛礁位置信息、礁坪、礁体位置信息。通过对被越南侵占的南沙群岛29座岛礁的空间分析,认为被占岛礁在空间上存在“一纵一横”的空间分布特征,南沙群岛被占岛礁南子岛、景宏岛、南威岛、六门礁从n至w构成了4个核心和广雅滩1个次核心的岛礁空间分布战略格局。通过对被占岛礁面积、礁坪面积及礁体面积进行插值处理,叠加分析,按重分类方法将插值结果按数值大小划分为5类,予以揭示被占岛礁的重要程度及未来开发潜力。通过分析越南侵占岛礁的岛屿面积与礁体面积比值,指出鸿庥岛、景宏岛、西礁、中礁、毕生礁、六门礁、柏礁有较大填海造陆潜力的岛礁。
心肌ECM研究进展:心肌ECM的获取、评价、和改造
Progress on Cardiac Extracellular Matrix (ECM): Acquirement, Evaluation and Modification of Cardiac ECM
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姜煜东, 李文思,, 余翀, 胡新武, 席姣娅
Journal of Physiology Studies (JPS) , 2013, DOI: 10.12677/jps.2013.11001
Abstract:
急、慢性心肌梗死导致功能性心肌细胞坏死,心泵功能受损,可利用组织工程技术将心肌细胞与细胞外支架制备成心肌补丁进行心功能修复。心肌细胞外基质(extracellular matrix, ECM)被认为是构建细胞外支架的理想材料。使用ECM构建重组心肌是心肌组织工程研究的重要方向。脱细胞处理制得的ECM具备较低的免疫原性、强大的自我更新能力以及良好的生物相容性。目前心肌ECM的制备方法多种多样,相对彻底的脱细胞化处理是消除免疫原性的必要步骤,但同时会造成ECM超微结构的破坏,不利于ECM重细胞化和心肌重建。研究者尝试通过各种手段检测并评价脱细胞方法的效果,不断改良脱细胞化技术,并通过修饰和改造心肌ECM,提升其生物相容性和机械性能。本综述围绕心肌ECM的获取、评价、和改造,对目前组织工程的心肌ECM相关研究新进展进行总结。
Both acute and chronic myocardial infraction can lead to necrosis of functional myocardial cells as well as impaired cardiac-pump function. The cardiac patches generated from cardiomyocytes and extracellular matrix scaffold by tissue engineering can be used to repair the impaired function. Cardiac extracellular matrix (ECM) has been widely considered as an ideal source of biological scaffolds, and the application of ECM in myocardial reconstruction is one of the main research fields in myocardial tissue engineering. ECM, generated from the process of decellularization, has relatively low immunogenecity, strong self-renewal ability and good biocompatibility. Currently, the methodology of cardiac ECM is greatly diversified. Although thorough decellularization is the essential process of eliminating immu-nogenecity, it will damage the ultrastructure of ECM, having a negative effect on recellularization and myocardial re-construction afterwards. Researchers are trying various methods to detect and evaluate the effect of decellularization, and continuously optimize the protocol of decellularization. Moreover, they promote the biocompatibility and me-chanical properties of cardiac ECM by modifying and transforming it. Our review focuses on the acquisition, evaluation and modification of cardiac ECM, and summarizes the recent research progress on it.
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