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  • 用于锂 - 硫电池的纳米结构金属氧化物和硫化物(1)

    Lithium–sulfur (Li–S) batteries with high energy density and long cycle life are considered to be one of the most promising next-generation energy-storage systems beyond routine lithium-ion batteries. Various approaches have been proposed to break down technical barriers in Li–S battery systems. ...

    /dl/516137.html

    标签: 电池 纳米结构 硫化物 金属氧化物

    上传时间: 2017-11-23

    上传用户:653357637

  • 4G & Beyond Convergence of Networks

    From the transition of analog to digital communication along with seamless mobility and high computing power of small handheld devices, the wireless communications industry has seen tremendous changes leading to the integration of several telecommunication networks, devices and services over last 30 ...

    /dl/521788.html

    标签: Convergence Networks Beyond 4G of

    上传时间: 2020-05-26

    上传用户:shancjb

  • Architectures for Baseband Signal Processing

    Mobile communication devices like smart phones or tablet PCs enable us to consume information at every location and at every time. The rapid development of new applications and new services and the demand to access data in real time create an increasing throughput demand. The data have to be transmi ...

    /dl/521816.html

    标签: Architectures Processing Baseband Signal for

    上传时间: 2020-05-26

    上传用户:shancjb

  • Cognitive+Radio+Networks

    According to the statistics of the Federal Communications Commission (FCC), temporal and geographical variations in the utilization of the as- signed spectrum range from 15% to 85%. The limited available radio spec- trum and the inefficiency in spectrum usage necessitate a new commu- nication paradi ...

    /dl/521836.html

    标签: Cognitive Radio Networks

    上传时间: 2020-05-26

    上传用户:shancjb

  • Cognitive+Wireless+Network

    Cognitive radio has emerged as a promising technology for maximizing the utiliza- tion of the limited radio bandwidth while accommodating the increasing amount of services and applications in wireless networks. A cognitive radio (CR) transceiver is able to adapt to the dynamic radio environment and ...

    /dl/521839.html

    标签: Cognitive Wireless Network

    上传时间: 2020-05-26

    上传用户:shancjb

  • Opportunistic+Spectrum+Sharing

    Rapid growth of wireless communication services in recent decades has created a huge demand of radio spectrum. Spectrum scarcity and utilization inefficiency limit the development of wireless networks. Cognitive radio is a promising tech- nology that allows secondary users to reuse the underutilized ...

    /dl/522041.html

    标签: Opportunistic Spectrum Sharing

    上传时间: 2020-05-31

    上传用户:shancjb

  • Spectrum+Sharing+Between+Radars

    Radio frequency spectrum is a scarce and critical natural resource that is utilized for many services including surveillance, navigation, communication, and broadcast- ing. Recent years have seen tremendous growth in the use of spectrum especially by commercial cellular operators. Ubiquitous use of ...

    /dl/522126.html

    标签: Spectrum Sharing Between Radars

    上传时间: 2020-06-01

    上传用户:shancjb

  • Frequency+Tunable+MEMS

    For more than three decades, Micro Electro Mechanical Systems (MEMS) have steadily transitioned out of research labs and into production forming a more than $10 billion market [1]. MEMS devices such as accelerometers, pressure sensors and microphones, to name a few, have seen immense utilization, pa ...

    /dl/522278.html

    标签: Frequency Tunable MEMS

    上传时间: 2020-06-06

    上传用户:shancjb

  • Ecological+Design+of+Smart+Home+Networks

    In this age of science and technology, the global economy has developed so much that our lifestyles are now extremely modernized and developed. In some ways, modern society seems to have reached the utmost state of advancement in various areas, including eco- nomic development, science and technolog ...

    /dl/522289.html

    标签: Ecological Networks Design Smart Home of

    上传时间: 2020-06-06

    上传用户:shancjb

  • Cognitive+Radio+Networks

    Resource allocation is an important issue in wireless communication networks. In recent decades, cognitive radio technology and cognitive radio-based networks have obtained more and more attention and have been well studied to improve spectrum utilization and to overcomethe problem of spectrum scarc ...

    /dl/522307.html

    标签: Cognitive Networks Radio

    上传时间: 2020-06-07

    上传用户:shancjb