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32061.2013-2014年中国智能电视市场竞争分析
[计算机、通信和其他电子设备制造业] [2014-09-04]
本文分别从2013-2014年中国智能电视市场发展概况、基本特点、竞争格局等几个方面进行了分析及评论。
关键词:智能电视;发展概况;基本特点;竞争格局
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32062.新兴产业周刊——2014年第33期
[医药制造业,计算机、通信和其他电子设备制造业,电力、热力、燃气及水生产和供应业,汽车制造业,专用设备制造业,信息传输、软件和信息技术服务业,水利、环境和公共设施管理业] [2014-09-04]
报告从新能源、新材料、节能环保、生物等方面进行了分析评论。
关键词:新能源;新材料;节能环保;生物
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32063.全球先进的CO2传感器市场报告(2014-2018年)
[计算机、通信和其他电子设备制造业] [2014-09-03]
These are next-generation CO2 sensors that can adjust automatically to changes in temperature, humidity, and altitude. Moreover, they have a lower error rate than standard CO2 sensors. Thus, advanced CO2 sensors enable end-users in the Industrial and Building Automation sectors to take critical decisions quickly.
关键词:CO2传感器;监测二氧化碳;自动调整;温度;湿度;海拔高度
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32064.2013-2014年中国先进制造产业分析与预测
[其他制造业,铁路、船舶、航空航天和其他运输设备制造业,电气机械和器材制造业,通用设备制造业,计算机、通信和其他电子设备制造业,汽车制造业,专用设备制造业,仪器仪表制造业,金属制品业] [2014-09-03]
本文非别从2013-2014年中国先进制造产业发展概况、产业政策与支撑体系、发展预测等几个方面进行了分析评论。
关键词:金属制品;通用设备;专用设备;汽车制造;电气机械;计算机;通信;电子设备;仪器仪表;铁路;船舶;航空;航天;发展概况;产业政策;支撑体系;发展预测
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32065.用于基于RSS的定位无线传感器网络的混合HMM
[计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-03]
We propose a method of RSS-base localization in WSN (Wireless Sensor Network),called Hybrid HMM,to improve the stability of node localization based on RSS (Received Signal Strength).This model utilizes HMM (Hidden Markov Model) to take into account the time factor when receiving the RSS sequence,and converts the action of ranging into an operation of classification.For the received RSS used for localization,our Hybrid HMM will compare it with the preset RSS threshold value,and put the result into one of two categories for subsequent processing:If the received value is higher than the threshold value,the distance value will be drawn from the signal propagation model.If lower,the information will be obtained from a trained HMM.
关键词:无线传感器网络;本土化;接收信号强度
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32066.全球可变凸轮正时市场报告(2014-2018年)
[汽车制造业,计算机、通信和其他电子设备制造业] [2014-09-03]
This report covers the present scenario and the growth prospects of the Global Variable CamTiming market for the period 2014-2018. The report considers the revenue generated from the sales of cam phasing and variable valve actuation. The report presents the vendor landscape and corresponding detailed analysis of the top four vendors in the Global Variable Cam Timing market. In addition, it discusses the major drivers that influence the growth of the market. It also outlines the challenges faced by vendors and the market at large, as well as key trends emerging in the market.
关键词:可变凸轮;VVT;电子技术;机械系统
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32067.研究水下机器人混合执行器的运动控制
[计算机、通信和其他电子设备制造业] [2014-09-03]
A switch function is presented to smooth control instructions and avoid system vibration during switch operating underwater vehicles with hybrid actuators.And a Modified S-plane Controller (MSC) is proposed by analyzing underwater vehicle's dynamics and taking static force and coupling effects between the longitude velocity and other dimensions into account.Besides the advantages of S controller such as simple structure,MSC can solve the motion control of underwater vehicle at high speed which is difficult to control with S-plane controller.The stability of MSC is analyzed with Lyapunov function.Finally,MSC is applied to the motion control of an autonomous underwater vehicle controlled by rudders and thrusters.The feasibility of MSC is demonstrated by the results of velocity control,yaw control and depth control tests.
关键词:自治水下机器人;混合驱动器;运动控制;稳定性
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32068.混合存储:结合SSD和HDD的具有成本效益的高性能存储系统
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-09-03]
Unlike the use of DRAM for caching or buffering, certain idiosyncrasies of NAND Flash-based solid-state drives (SSDs) make their integration into existing systems non-trivial. Flash memory suffers from limits on its reliability, is an order of magnitude more expensive than the magnetic hard disk drives (HDDs), and can sometimes be as slow as the HDD (due to excessive garbage collection (GC) induced by high intensity of random writes). Given these trade-offs between HDDs and SSDs in terms of cost, performance, and lifetime, the current consensus among several storage experts is to view SSDs not as a replacement for HDD but rather as a complementary device within the high-performance storage hierarchy. We design and evaluate such a hybrid system called HybridStore to provide: (a) Hybrid-Plan: improved capacity planning technique to administrators with the overall goal of operating within cost-budgets and (b) HybridDyn: improved performance/lifetime guarantees during episodes of deviations from expected workloads through two novel mechanisms: write-regulation and fragmentation busting. As an illustrative example of HybridStores efficacy, HybridPlan is able to find the most cost-effective storage configuration for a large scale workload of Microsoft Research and suggest one MLC SSD with ten 7.2K RPM HDDs instead of fourteen 7.2K RPM HDDs only. HybridDyn is able to reduce the average response time for an enterprise scale random-write dominant workload by about 71as compared to a HDD-based system.
关键词:数据存储系统;驱动器;配置;成本效益;混合动力车
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32069.2013-2014年中国移动互联网应用市场竞争分析
[计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-03]
本文分别从2013-2014年中国移动互联网应用市场概述、竞争格局、主要参与者SWOT分析等几个方面进行了评论。
关键词:中国移动;互联网;应用市场;竞争格局;SWOT分析;
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32070.最终技术报告:用于照明的大功率暖白光LED混合封装
[计算机、通信和其他电子设备制造业] [2014-09-03]
In this project, an integrated warm-white hybrid light engine was developed. The hybrid approach involves combining phosphor-converted off-white InGaN LEDs and direct-emitting red AlInGaP LEDs in a single light engine to achieve high efficacy together with high color rendering index. We developed and integrated technology improvements in InGaN and AlInGaP die technology, phosphor technology, package architecture and encapsulation, to realize a hybrid warm-white LED package with an efficacy of 140 lm/W at a correlated color temperature of 3000K and a color rendering index of 90, measured under representative operating conditions. This efficacy is 26higher than the best warm-white LEDs of similar specification that are commercially available at the end of the project. Since the InGaN- and AlInGaP-based LEDs used in the hybrid engine show different behavior as a function of current and temperature, a control system needs to be in place to ensure a stable color point over all operating conditions. In this project, we developed an electronic control circuit that is fully integrated into the light engine in such a way that the module can simply be driven by a conventional single-channel driver. The integrated control circuit uses a switch-mode boost converter topology to control the LED drive currents based on the temperature and the input current of the light engine. A color control performance of 5 SDCM was demonstrated, and improvement to 3 SDCM is considered well within reach. The combination of high efficacy and ease of integration with existing single-channel drivers is expected to facilitate the adoption of the hybrid technology and accelerate the energy savings associated with solid-state lighting. In the product commercialization plan, downlights and indirect-lit troffers have been selected as the first target applications for this product concept. Fully functional integrated prototypes have been developed for both applications, and the business case evaluation is ongoing as of the end of the project.
关键词:发光二极管;照明灯(照明);颜色;控制系统;电子电路