focus band 中文意思是什麼
focus band
解釋
焦環-
These problems boost the study of high - k materials as the alternatives of sio2 gate dielectrics. among all high - k gate dielectric materials, hafnium oxide ( hfo2 ) is being extensively investigated as one of the most promising candidate materials due to its superior thermal stability with poly - si, biggish constant and reasonable band alignment. our researches focus on hfo2 dielectrics
高k柵介質材料已經被廣泛地研究來替代sio _ 2 ，以降低柵泄漏電流和改善可靠性，其中， hfo _ 2由於其較大的介電常數、較大的禁帶寬度、與si的導帶和價帶較大的偏置、以及與si的高的熱力學穩定性等特徵，被認為是最有希望的替代sio _ 2的柵介質材料之一。 -
According to the target distance ( 5 ~ 50m ), a c - band transceiver for ranging was presented in this thesis. the focus of this work was on designing a c - band frequency - modulated continuous - wave ( fmcw ) frequency source, a receiver and microstrip antenna
本文針對所探測目標的距離（ 5 ~ 50m ） ，研製了c波段測距收發前端，主要包括c波段調頻連續波（ fmcw ）頻率源，接收電路以及微帶天線。 -
And the main focus is the design, implementation and testing of an adaptive line echo canceller and a vocoder based on multi - band excitation ( mbe ) model
主要工作是設計並實現電話線路自適應回波抵消器和基於多帶激勵模型的語音編解碼器。 -
As an wave - band in the electromagnetic spectrum which hardly being used to this day, terahertz has came to be a focus to scientists of all over the would
Thz作為電磁波譜中至今仍然未被人們開發利用的波段，已經被眾多的科學工作者所關注。 -
The testing focus is on writing clearly and concisely, so if the body of the text exceeds 50 words, the script can only receive a maximum of 4, i. e. high band 2
（便條的主體部分應簡潔明了，如果超過50字，最多只能得4分，即2檔分數的上限。 -
As been analyzed, searching of mec is not carried out in the whole solution space with equal intensity, but in some focal regions. meanwhile, within each selected region, the search focus only on a narrow band. those features of mec explain clearly why it has excellent performance
分析認為mec不是對整個解空間進行相等強度的搜索，而是通過異化操作在整個解空間中選擇尋找有希望存在最優解的吸引域，再對這些區域進行趨同（局部）搜索，而在趨同（局部）搜索中又只搜索了一個窄的帶子，因此mec具有很高的搜索效率。 -
Access layer network will focus on the development of broadband access. when large demand for the divertion of the narrow band ip dial - up services, it is suggested to adopt the gateway mode
?接入層網路重點發展寬帶接入，當窄帶ip撥號業務分流需求較大時，可考慮採用網關方式。 -
His idea is based on the fact that the pivot of the soft wireless structure is to put the broad band a / d and d / a conversion near to antenna by all means, and to define the functions of the transmitter - receiver as many as possible in the forms of software ( namely realized by software ). the technology of background signal simulator puts the focus on the methods used to realize the software, namely to exploit the functions of the hardware ( for example, dsp fpga or asic ) through the idea of software design, and to produce ( realize ) wireless signals by high speed lsi and software programming
1992年5月的全美電信系統年會上， mitre公司的資深科學家joemitola首次給出了軟體無線電的定義，他認為：軟體無線電的組成架構的中心點是將寬帶模?數（ a d ）和數?模（ d a ）轉換器盡可能地靠近天線，將盡可能多的電臺功能以軟體的形式定義（即用軟體來實現） 。背景信號模擬器所採用的技術集中體現在軟體無線電技術，即用軟體化設計去開發硬體（如dsp 、 fpga 、 asic ）功能，採用高速大規模數字集成電路、軟體編程的方法產生（實現）各種無線電信號。
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