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Search Results: 1 - 10 of 61115 matches for " 梁鹏 "
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候保期间事故之赔付探讨

法学家 , 2011,
Abstract: 候保期间发生保险事故是否应当赔付的问题,是困扰我国司法界的一个难题。如果投保人在投保前已经交付保险费,基于对价平衡、合理期待等理论,保险人应当承担候保期间事故的赔付责任。学术界对此种赔付的性质有三种不同认识缔约过失责任、侵权责任以及未成立之保险合同的契约责任,但这三种认识都存在问题,保险人承担的责任应当为临时保险的契约责任。我国未来建立临时保险制度的方向应当确定为在投保人已经交付保险费的情况下,保险人必须提供不附条件的临时保险;在投保人未交付保险费的情况下,保险人可以自愿为被保险人提供临时保险。
日本风险投资案例研究――以集富风险投资公司为例

科技进步与对策 , 2009,
Abstract: 日本作为亚洲风险投资的先驱者,其风险投资起步于20世纪60年代。运用收集到的一手资料进行案例研究,通过对日本最大的风险投资公司JAFCO的组织结构、运作及回收各个方面进行分析,以期探究JAFCO公司成功的秘笈,并对当前日本风险投资的发展研究作进一步了解。风险投资首次公开发行内部收益率集富公司
大黄鱼鱼卵磷脂对小鼠脂质代谢的调节作用

- , 2016, DOI: 10.13982/j.mfst.1673-9078.2016.11.001
Abstract: 为研究大黄鱼鱼卵磷脂对高脂血症小鼠降血脂作用的影响,通过建立高脂血症小鼠模型,随机分为模型组、空白组、大豆磷脂组以及大黄鱼鱼卵磷脂低(5 g/kg)、中(15 g/kg)和高剂量组(30 g/kg),连续饲料喂养4周后,测定血清相关指标,并进行肝脏病理观察。结果表明:大黄鱼鱼卵磷脂具有抑制小鼠体重增加的作用。血清指标数据分析显示,与模型组相比,大黄鱼鱼卵磷脂低剂量组可显著降低TC、TG水平及AI1、AI2值(p<0.05),对降低LDL-C和提高HDL-C水平差异不显著,而中和高剂量组均能显著降低TC、TG和LDL-C水平以及AI1、AI2值,可以显著提高HDL-C水平(p<0.05),表明大黄鱼鱼卵磷脂具有调节高脂血症小鼠脂质代谢的作用;小鼠肝脏病理组织学观察显示,大黄鱼鱼卵磷脂低剂量组对小鼠肝细胞无明显影响,而中和高剂量组可以明显修复小鼠肝细胞变性。结果提示大黄鱼鱼卵磷脂可预防小鼠肝脏的脂肪性病变,有助于降低动脉粥样硬化发生的风险。
The hypolipidemic effect of large yellow croaker roe phospholipids was studied using a mouse model of hyperlipidemia. Mice were randomly divided into six groups: model, blank, soybean phospholipid (negative control), and low-dose (5 g/kg), medium-dose (15 g/kg) and high-dose (30 g/kg) large yellow croaker roe phospholipid group. After four weeks of feeding, the pathological changes of liver and phospholipid metabolism indices in the serum were investigated. The results indicated that large yellow croaker roe phospholipids suppressed mouse body weight gain. Compared with model group, medium-dose and high-dose large yellow croaker roe phospholipids significantly reduced levels of total cholesterol (TC), triglycerides (TG), and the values of atherogenic indexes 1 (AI1) and 2 (AI2) (p<0.05), but had no marked impact on levels of low-density lipoprotein-cholesterol (LDL-C) and high-density lipoprotein-cholesterol (HDL-C). The findings suggest that medium- and high-dose large yellow croaker roe phospholipids regulated lipid metabolism in hyperlipidemic mice. Based on the results of pathological histology of mouse liver, low-dose large yellow croaker roe phospholipid did not show significant effect on hepatocytes (p>0.05), whereas medium- and high-dose large yellow croaker roe phospholipids showed a significant effect on repairing hepatocellular degeneration. The results indicate that large yellow croaker roe phospholipids can prevent fatty degeneration of mouse liver and help reducing the risk of atherosclerosis.
类别归纳推理中的非对称性:模型与挑战
Asymmetries of Category-Based Induction: Models and Challenges
 [PDF]

孙洵伟,
Advances in Psychology (AP) , 2013, DOI: 10.12677/AP.2013.36050
Abstract: 非对称性是类别归纳推理中一种重要的心理现象,即某些情况下交换前提类别与结论类别会导致显著不同的归纳力度。关于类别归纳推理非对称性的理论模型可分为两大类:基于相似性的模型和基于知识的模型。其中,基于相似性的模型包括相似覆盖模型、基于特征的模型和特征迁移模型;基于知识的模型包括假设评价模型、关联理论和贝叶斯模型。本文对这些模型进行了综述,并分别分析了其优缺点,进而对类别归纳推理非对称性的未来研究进行了展望。
Asymmetry is a typical mental phenomenon in category-based induction, i.e., exchange of premise category and conclusion category may lead to significantly different inductive strength. There are two kinds of cognitive models concerning asymmetry: similarity-based model and knowledge-based model. Similarity-based model includes similarity-coverage model (SCM), feature-based induction model (FBIM) and feature transfer model (FTM). Knowledge-based model contains hypothesis assessment model (HAM), the relevance theory and Bayesian model. The current paper reviews these models and presents their merits and demerits, and the future research directions of asymmetry in category-based induction are further discussed.
利用LIVE/DEADBaclight染色测定活性污泥中的活菌水平
,黄霞
环境化学 , 2015,
Abstract: 以LIVE/DEADBaclight染色法测定活性污泥中的活菌水平,采用荧光染色剂SYTO9和碘化丙啶(PI)对活性污泥进行染色,并利用荧光分光光度计测量绿色荧光(Fg,波长500—510nm)光强来表征活性污泥中活菌水平.该法直接对稀释后的污泥悬浊液进行测量,简化了测量步骤.当污泥浓度小于100mg·l-1时,每毫升样品需投加染色剂25μl;污泥浓度稀释到50mg·l-1,其惰性颗粒物对测量产生的影响在7%以下;超声波分散的最佳条件是超声时间2min,功率40W.
类别归纳推理的贝叶斯模型
The Bayesian Model of Category-Based Induction
 [PDF]

邓志超, , 钟宁
Advances in Psychology (AP) , 2014, DOI: 10.12677/AP.2014.43060
Abstract:

贝叶斯模型为解释类别归纳推理的实验现象提供了一个统一的可计算框架。在该框架下,用不同的类别结构和随机过程表示不同的先验知识,并基于贝叶斯公式预测不同场景下的归纳力度。与其它模型相比,贝叶斯模型有较强的预测力度和更广的应用范围。文章总结了该模型的发展历史及现状,并首次系统阐述了其建模过程。未来研究可结合功能磁共振实验和计算语言学等方法,进一步拓展该模型的推理能力,提高其实际可用性
The Bayesian model (BM) of category-based induction provides a unified computable framework for explaining the experimental phenomena (including the premise-conclusion similarity effect, the premise diversity effect, the premise monotonic effect and the premise-conclusion asymmetric effect, etc.) in category-based induction. Within this framework, the inductive reasoning in different contexts (such as induction about the generic biological properties or the causally transmitted properties) requires the constraint of different kinds of prior knowledge. Different kinds of prior knowledge can be represented by different kinds of category structures (i.e., the relationship between categories) and the corresponding stochastic process (i.e., the distribution of features/ properties in the category structure). Thus, BM can get the prior probability distributions for the Bayesian inference engine, and finally, the strength of an inductive argument can be calculated. As compared to the similarity coverage model (SCM) and feature-based inductive model (FBIM), BM can reflect the interaction of categories and properties, and has a clear mathematical basis, and also shows a better ability of prediction. This paper firstly reviews the research history and state of the art of the BM, and summarizes the process of computational cognitive modeling using BM. Secondly, BM is compared with the other models, and then the advantages and disadvantages of the BM are commented in details. Finally, some potential research directions are proposed: 1) further improving the ability of BM to deal with the common sense knowledge (e.g., the predatory behavior of animal), which may help to expand its application scope; 2) further increasing the power of BM to handle multiple objects and features/properties (if we learn that the animal A has the property X, what’s the possibility of the animal B having the property Y?); 3) that in combination with other methodologies (e.g., functional magnetic resonance imaging (fMRI) and computational linguistics, such as corpora), BM may improve its practical availability and reasoning abilities.

数字归纳推理认知成分的眼动研究
An Eye-Movement Study of Cognitive Component in Numerical Inductive Reasoning
 [PDF]

付雳, 贾秀琴, 钟宁,
Advances in Psychology (AP) , 2014, DOI: 10.12677/AP.2014.43058
Abstract: 以往行为实验研究认为数字归纳推理中包含识别(Recognition of memorized series)、计算(Calculation)、检查(Checking)三个子成分,但是仅给出了其存在的反应时和正确率的证据。由于眼动技术能实时地反映视觉加工过程,因此,本研究采用2(序列类型:计数、非计数) × 3(规则有效性:有效、无效、异常)实验设计,通过Tobii T120眼动仪,记录15名被试解决数字完型任务时的眼动模式。本研究的目的是通过眼动指标检验这三个子成分的存在。结果表明:计数类型任务的注视时间、注视次数、回视次数显著或边缘显著小于非计数类型;有效任务的注视时间、注视次数、回视次数显著或边缘显著小于无效任务。这些结果与研究假设是一致的,首次给出了数字归纳推理中识别、计算、检查三个子成分存在的眼动证据
Based on the reaction time and accuracy, previous behavioral study has proposed that there are 3 sub-components involved in numerical inductive reasoning, i.e., recognition of memorized series, calculation, and checking. Eye-movement technology has the advantages of reflecting the real-time visual processing, thus, the present study aims at providing eye-movement evidences of the 3 sub- components in number-series completion
3种生物处理方式对污泥减量效果的比较及优化
,黄霞,钱易,杨乃
环境科学 , 2006,
Abstract: 通过间歇试验得到3种生物方式(污泥好氧消化、厌氧消化以及颤蚓摄食)对污泥的比减量速率、污泥减量速率和污泥减量比例。当初始污泥浓度为2500mg?L-1时,经过24h减量,颤蚓摄食、厌氧消化和好氧消化3种方式对污泥的比减量速率R分别为0.13mg?(mg?d)-1,0.09mg?(mg?d)-1和0.03mg?(mg?d)-1,对污泥的减量速率分别为315mg?(L?d)-1,263mg?(L?d)-1和65mg?(L?d)-1。通过细菌荧光染色和脱氢酶活性检测证实颤蚓摄食在短时间内对污泥中细菌细胞膜的破坏程度最大,可以将颤蚓摄食和厌氧消化相组合强化对污泥的减量。对于初始浓度为2500mg?L-1的污泥,颤蚓摄食12h后再厌氧消化36h,可以在2d左右使污泥减量的比例达到30%,减量比速率为0.25mg?(mg?d)-1。当初始污泥浓度增加到4240mg?L-1,颤蚓摄食时间需要延长到24h方能保证组合工艺对污泥最大程度的减量。
基于HTML5与可视化工具包的医学影像三维重建及交互方法研究
Research on Three-dimensional Medical Image Reconstruction and Interaction Based on HTML5 and Visualization Toolkit

,,苏红森,
- , 2015, DOI: 10.7507/1001-5515.20150062
Abstract: 利用HTML5标准集成的WebSocket和Canvas协议在网页进行事件交互、主客户端双向通信、图形图像绘制, 结合VTK三维可视化工具包, 研究在纯净Web中进行远程医学影像重建和交互的可行性并进行实验。提出以服务器为中心的建模思想, 使大数据无需下载至客户端建模, 避免了客户端因三维渲染而产生的硬件配置和初始网络传输压力, 实现了远程医学影像三维重建交互与Web的无缝集成, 并可适用于低配置计算机和移动设备。最后使用一组DICOM影像对该方法在因特网中进行测试, 达到实时效果, 这种能够跨越上网终端和设备性能限制的Web三维可视交流系统在医学远程辅助上具有较大意义。
Integrating visualization toolkit and the capability of interaction, bidirectional communication and graphics rendering which provided by HTML5, we explored and experimented on the feasibility of remote medical image reconstruction and interaction in pure Web. We prompted server-centric method which did not need to download the big medical data to local connections and avoided considering network transmission pressure and the three-dimensional (3D) rendering capability of client hardware. The method integrated remote medical image reconstruction and interaction into Web seamlessly, which was applicable to lower-end computers and mobile devices. Finally, we tested this method in the Internet and achieved real-time effects. This Web-based 3D reconstruction and interaction method, which crosses over internet terminals and performance limited devices, may be useful for remote medical assistant.
THE LIMIT CYCLES FOR A CLASS OF CUBIC SYSTEM
一类三次系统的极限环

Jin Peng LIANG,

系统科学与数学 , 2003,
Abstract: This paper discusses the limit cycles for a class of cubic systems:
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