oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 1 )

2019 ( 71 )

2018 ( 1336 )

2017 ( 1345 )

Custom range...

Search Results: 1 - 10 of 60217 matches for " 郑秋瑶 "
All listed articles are free for downloading (OA Articles)
Page 1 /60217
Display every page Item
TTCAN在ARM中的应用实现
TTCAN Application Implementation in the ARM
 [PDF]

刘倩文, , 金梦洁
Open Journal of Circuits and Systems (OJCS) , 2015, DOI: 10.12677/OJCS.2015.44008
Abstract:
CAN总线是现场总线的一种,目前在汽车电子和船舶电子中广泛应用。针对CAN通信网络中低优先级数据传输延迟较大、存在稳定性较差的问题,提出了基于时间触发的TTCAN协议。本基于时间触发的双路CAN总线系统是由ARM工控机控制,是具有一个主节点和n个从节点的系统,并在后续作出错误率检测与现有的总线结构作比较以证明该总线结构的可行性。
CAN bus is a kind of field bus and is widely used in automotive electronics and marine electronics. For the data transmission delay of low priority number is large and the stability is poor in CAN communication network, time-triggered TTCAN protocol is proposed in this paper. The time- triggered dual CAN bus system is controlled by ARM IPC, which consists of one master node and several slave nodes. This system is compared with the existing CAN bus system on the subsequent error rate to demostrate the feasibility of this system.
基于物联网技术的智能空气质量检测系统设计
Design of Smart Air Quality Detection System on Internet of Things Technology
 [PDF]

邵明宪, 刘帅, 洪慧, 程峰,
Computer Science and Application (CSA) , 2014, DOI: 10.12677/CSA.2014.412046
Abstract:
本文设计了一种新型智能空气质量检测系统。该系统采用物联网技术,使用户可以随时随地的通过手机或PC端控制该智能系统的工作;同时,间接解决空气净化器开机净化时间长的问题。传统空气净化器一般采用几个不同颜色指示灯来定性显示当前空气质量状况,本文系统在手机及PC端上的显示界面可以实时显示精确的当前环境空气状况,方便了环境数据的收集与分析。本文的设计将大大提升客户体验,将可以大量用于空气净化器行业。
A new smart air quality detection system is designed in this paper. The phone or PC program can be used to control the smart system work anywhere with the Internet of Things (IOT) technology, and it indirectly solves the problem that the air purifiers maybe spend a lot of time to clean up the air when it is turned on. Traditional air purifiers only use few different color LEDs to display air quality qualitatively. A different type of display interface in this system is implemented on the phone and PC terminals, and the real-time values of the environmental quality condition are displayed and collected. It greatly enhances the User Experience (UE), and can be used in the air purifier industry.
高山冰缘植物高山离子芥体外抗氧化活性研究
孙雅煊,刘婷,戴雪伶,高兆兰,李雨,李雅博,,安黎哲
冰川冻土 , 2012,
Abstract: 以高山冰缘十字花科植物高山离子芥(Chorisporabungeana)为研究对象,分析比较了其水提物和醇提物中总黄酮含量以及它们的抗氧化能力.结果表明水提物和醇提物能够直接清除DPPH、超氧阴离子、羟自由基,抑制脂质过氧化.与水提物相比,醇提物总黄酮含量较高,抗氧化活性更强.高山离子芥水提物和醇提物在体外具有明显的抗氧化活性,而较高的总黄酮是其适应高山严酷环境的主要特性之一.研究结果对揭示极端环境下生长的植物抗性机理和资源的进一步开发利用提供了科学依据.
现金股利对股价影响的实证分析
Empirical Analysis of the Impact of Cash Dividends on Share Price
 [PDF]

倩影, 子然, 张苏珊, 卓梦
Business and Globalization (BGlo) , 2015, DOI: 10.12677/BGlo.2015.31001
Abstract:
根据事件研究法,以深圳交易所成分股上市公司派发2013年度现金股利为研究事件,通过计算公告日前后样本股的异常收益率的变化,实证分析股票市场对派现的反应。实证结果表明:我国股票市场未达到半强式有效,市场对现金股利的反应比较迟缓。
According to event study method, taking the event of annual cash dividends distributed in 2013 by Shenzhen Stock Exchange Listed Company as the research event, this paper analyzes the stock market reaction to cash dividends by means of calculating the variety of sample stocks’ abnormal yield before and after the announcement day. The empirical results demonstrate that the stock market has not reached the semi-strong efficiency and the market reaction to cash dividends is relatively sluggish.
带充电设施的电动班车路径规划问题研究
Research on Electric Shuttle Bus Routing Problem with Recharging Station
 [PDF]

邢芳芳, 贾永基, 蒋琦,
Management Science and Engineering (MSE) , 2016, DOI: 10.12677/MSE.2016.54016
Abstract: 针对公司班车运行的实际情况,考虑电动班车续航能力有限、客户预约服务时间窗不同等因素,构建了带充电设施的电动班车路径规划问题的混合整数规划模型,该模型可以提高电动班车运行的准时性,并提高其使用效率。然后,提出了求解该模型的遗传算法,测试结果表明,本文提出的算法是有效的。
According to the actual situation of company shuttle bus, considering the limited range of electric shuttle bus and the different customers’ reservation time windows, a mixed integer programming model for the electric shuttle bus routing problem with recharging station is constructed. By this model, the operation time and the utilization efficiency of the electric shuttle bus are improved. Then, a genetic algorithm is proposed to solve this model, and test results demonstrate that the algorithm proposed in this paper is efficient.
金融发展、对外贸易与能源消费——基于ARDL模型的实证研究
Financial Development, Trade Openness and Energy Consumption——Empirical Study Based on ARDL Model

胡宗义,
- , 2016,
Abstract: 利用1980-2013年的样本数据,运用自回归分布滞后模型(ARDL)对我国金融发展、对外贸易与能源消费三者间的关系进行实证研究。研究结果表明:金融发展对能源消费具有长期显著的负向效应,能源消费对金融发展的长短期影响显著为负;金融发展对对外贸易的长短期弹性系数是3.1068和0.40871,分别通过1%和10%的显著性检验,对外贸易对金融发展的显著影响只存在于短期关系中;能源消费对对外贸易具有长期显著的促进作用,节能计划的实施,会降低贸易发展水平。基于此,我国应充分发挥金融在经济系统中的作用,在促进对外贸易发展的同时减少能源消费,实现经济社会的可持续发展。
Based on the sample data of 1980 to 2013, this paper uses the autoregressive distributed lag (ARDL) model to investigate the relationship between China’s financial development, trade openness and energy consumption. The results show that the long-term effect of financial development on energy consumption is significantly negative, while energy consumption has a negative impact on financial development both in the long and short term. The long-term and short-term elasticity coefficient of financial development to trade openness are 3.1068 and 0.40871, which are significant at 10% and 1% levels respectively, while a significant impact of trade openness on financial development only exists in short-term relationship. In addition, energy consumption plays a significant role in promoting trade openness in the long term. The implementation of energy saving plan, will reduce the trade openness. China should give full play to the role of financial development in the economic system, which can reduce energy consumption while promoting trade openness, and achieve sustainable economic and social development.
嘌呤2受体介导的初级感觉神经节神经元胞体与卫星胶质细胞间信息交流的研究进展
Puriner 2 Receptor Mediating the Communication between Neurons Cell Body and Satellite Glial Cells in Primary Sensory Ganglion
 [PDF]

谢唯,, 温诗, 刘双梅, 梁尚栋
International Journal of Psychiatry and Neurology (IJPN) , 2016, DOI: 10.12677/IJPN.2016.51001
Abstract:
初级感觉神经节神经元胞体和围绕其周围的卫星胶质细胞的结构和功能研究表明,卫星胶质细胞参与了感觉信号从神经末梢传入脊髓的过程。卫星胶质细胞与其围绕的神经元胞体之间通过多种方式相互交流,这种信息交流在损伤情况下可发生改变并引发异常疼痛。本文就初级感觉神经节中嘌呤2(P2)受体介导的神经元胞体与卫星胶质细胞之间交流的可能机制及组织或神经损伤时将如何影响这种交流的研究进展进行综述。
The reaserch of structure and function on neuron cell body and satellite glial cells in primary sensory ganglion shows that satellite glial cells involved in the process of sensory signals conducted from nerve endings to the spinal cord. Satellite glial cells communicate with neurons in different ways, this kind of information communication under the condition of damage can change and cause abnormal pain. In this paper, we summarized the research progress of the communication mediated by purines 2(P2) receptor in the primary sensory ganglion, including the possible mechanisms of communication and change of communication when tissue or nerve is injured.
TPS改性剂对高粘沥青性能的影响
,谭忆,陈克群
哈尔滨工业大学学报 , 2012, DOI: 10.11918/j.issn.0367-6234.2012.06.019
Abstract: 为制备适于我国排水性沥青路面应用的高粘沥青,通过室内试验研究高粘沥青添加剂TPS对两种不同油源的90#基质沥青的改性效果.以60℃黏度作为评价高粘沥青的关键指标,重点研究TPS掺量变化对改性沥青60℃黏度及其他物理性能的影响规律.结果表明:TPS对两种不同油源的基质沥青的改性效果差异较大,尤其对于60℃动力黏度指标,在相同TPS掺量下,基质沥青的沥青质含量越大,改性沥青的60℃黏度越大,二者的配伍性较好,推荐TPS掺量(质量分数)为14%~16%,此时改性沥青胶结料的60℃黏度增长迅速,能够满足高粘沥青的黏度要求,且改性沥青胶结料的感温性、高温稳定性与低温抗裂性、弹性恢复能力等都得到了较大程度的提高.
基本养老金应实行本金与基金分流运营
江涛,
财会月刊 , 2008,
Abstract: 本文从本金与基金分流的角度对基本养老金的属性进行了分析,并分析了个人账户本金与统筹基金的分流运营,最后指出了当前基本养老金管理中存在的问题。  【关键词】基本养老金本金基金一、基本养老金的属性  1.基本养老金的公有属性。经济学中通常按照排他性与竞用性两个标准,将物品分为公共物品和私人物品。当然,现实中同时具有非排他性和非竞用性的纯公共物品并不多见,但是在纯公共物品和私人物品之间,却存在着大量的准公共物品,笔者认为基本养老金就是其中一种。
华支睾吸虫病术后胆汁分泌亢进21例分析

第三军医大学学报 , 2009,
Abstract:
Page 1 /60217
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.