片內電阻 的英文怎麼說
中文拼音 [piānnèidiànzǔ]
片內電阻
英文
on chip resistor- 片 : 片構詞成分。
- 內 : 名詞1. (內部; 里頭; 里邊) inner; inside; within 2. (妻子或妻子的親屬) one's wife or her relatives 3. (姓氏) a surname
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
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The patch clamp experiment : the cell - attached and inside - out configurations of the patch - clamp techniques were used to investigate single channel properties of nmd a receptors in the actuely dissociated neurons of the marginal division in the rat striatum, recording the current amplitude. long / short term opening / closing times indexes and the effects of incitants and agonists of the nmd a receptors on those parameters. we find that two types of conductance of 42ps and 20ps were recorded, the 42ps was the advantaged conductance
本研究是在本實驗室以前研究的基礎上,通過膜片鉗( pachclamp )觀測sd ( sprague - dawley , sd )的mrd上nmda受體通道的電生理特性;繼而對青壯年sd大鼠的mrd 、海馬進行毀損並腹腔注射nmda受體阻滯劑ktm ( ketamine , ktm ) ,觀察其對大鼠學習記憶能力的影響:對于學習記憶能力下降的老年鼠進一步做顱內定位注射nmda受體激動劑與抑制劑,觀察其在特定部位的作用;最後,應用fmri ( functionalmagneticresonanceimaging ; fmri )對注射ktm的志願者做學習記憶與痛覺的對比觀察。The results show that the electron mean drift velocity is affected by the cathode radius, the impedance of the load diode, the inner radius of vanes and the input voltage
結果表明電子平均漂移速度決定於陰極桿半徑、負載二極體阻抗、陽極慢波葉片內徑和輸入電壓。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求,課題期間研製了下位機系統硬體和軟體,開發了上位機監控軟體,其中所作的具體工作包括:測量原理的研究和在系統中的實現,在本次設計中用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控晶元的選擇,我們選用了高集成度的混合信號系統級晶元c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在單片機內的運算;高集成度16位模數轉換晶元ad7705在系統中的應用,我們完成了它與單片機的介面設計及程序編制任務;精確時鐘晶元ds1302在系統中的應用,在此,我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬,該晶元的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測,該部分的實現是通過採用ad421晶元來完成的,本設計中完成了ad421與單片機的spi介面任務,協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。We think increase of the internal resistance of battery is the main problem to the recycle life deteriorating at high rate, besides the influence of the materials. decomposition occurred on positive and negative electrode at high rate current and the interspaces increased. the restrains of swelling and the increase of an oxygen overvoltage can improve the performance of recycle life
對于電池性能衰減的原因,認為除了所使用的材料是影響電池性能的重要因素之外,在溫度和大電流作用下,電池的正負極材料發生裂解,極片內空隙增大,電池內阻性能惡化是引起電池高倍率循環性能惡化的關鍵;通過抑制正極析氧和膨脹,並降低負極合金材料的粉化過程,將有望緩解電池內阻特性的惡化,從而提高電池高倍率充放電循環性能。By testing the battery resistance, we chose the dimension of the square ni / mh battery of the 5. 7ah capacity as follow : the size of positive was 120mm 72mm, and the size of negative was 121mm 72mm, which presented the low resistance
通過對電池歐姆內阻的測量,確定了5 . 7ah容量的方形ni / mh電池的最優的極片尺寸,即正極尺寸120mm 72mm ,負極尺寸121mm 72mm 。採用此種極片尺寸的方形ni / mh電池可以有較小的內阻。The research of patch antennas based on photonic - bandgap ( pbg ) structures is a relatively new area. the goal is to improve the performance of the patch antennas by using the special features of pbg structures. though some good research results have been obtained by scientists in the world, there still exit some problems to be solved for improving the performaces and reducing the size, weight and cost
雖然國內外已經在基底鉆孔型、地面腐蝕型、高阻抗表面型、 uc - pbg型、覆層型和軟表面型電磁(光子)晶體貼片天線等方面開展了研究,但是在這些研究中還遺留著多方面的問題有待解決,以顯著改善天線的性能指標,減少天線的體積,重量,降低天線的加工費用等。We confer naf treatment may inhibit the recovery of chlorophyll ' s capacity of electronic transportation and effect the change of the influorescence of membrance proteins under the lowlight
表明naf處理不但對弱光放置樣品的葉綠素傳遞電子能力有阻礙作用,還影響弱光修復中葉片類囊體膜蛋白內源熒光的變化。9 pieces of rc test beams were fabricated, the fbg sensors and strain gauges were mounted in the tensile steel, compress concrete and cfrp of the tested beams
制備9根rc試驗梁,將fbg傳感器與電阻應變片同時預置於實驗梁內(受拉鋼筋、壓區混凝土及碳纖維復合材料中) 。Stain gage load cells are diffusely used in the mechanical measurements with high precision. at present, load cell design, manufacture and test in china, especially the strain gage backing material were laggard a lot
電阻應變式測力稱重傳感器在高精度機械測量領域中有著廣泛的應用,但目前國內的傳感器設計、製造、檢驗技術,尤其是應變片基底材料的製造工藝還非常落後。In the same way, the ncz silicon with nitrogen - oxygen complexes was annealed by rtf at range of 750 - 950 ? for different time to detect the change in resistivity. we found that nitrogen - oxygen complexes were annihilated with less time and lower temperature than conventional annealing method
同樣,我們將650oc , zh處理生成氮氧復合體的微氮矽片在750 950c范圍內進行不等時的rtp處理,觀察電阻率的變化,確定了最佳的氮氧復合體消除溫度和時間。Experimental result shows that electrical - resistance strain gages can respond well in the frequency range of artificial excitation by impact hammer, at the same time, the experimental scheme brought forward in this paper makes the experimental setting simple and can be manipulated easily as well as can display the excitation and response expediently and synchronously on digital oscillograph. the impact hammer can implement half - sine load
結果表明,電阻應變片在力錘激勵頻段內可以有很好的響應,從而使實驗裝置簡單,方便操作和使用;同時實驗結果顯示出本文採用的實驗方案可以方便地將激勵和響應同步地顯示在示波器上,並且利用力錘可以實現規則的半正弦加載。In this experiment, thermal donor in cz silicon generated by 450 ? annealing for 32 hours was eliminated by rtf at range of 600 ~ 700 ? for different time. furthermore, the permit temperature and time for annihilation of thermal donor by rtf was found
實驗中將450oc , 32h處理生成熱施主的普通cz矽片在600oc 700oc范圍內進行不等時的rtp處理,觀察電阻率的變化,從而確定最佳的rtp消除熱施主溫度和時間。The study and design on the full automation inserting dynamic and static spring leaf machine applicant : zheng tianlai supervisor : associate professor hu guoqing the labour denseness model was adopted in the most of relay production lines presently inland, which makes the inserting force of the spring - leaves uneven and affects the tangent resistance, so the artificial factor of the product is serious, and the stability is bad
目前國內繼電器生產中大多採用勞動密集型,繼電器簧片的插入力大小不均勻,影響接觸電阻,所以產品質量人為因素很重,穩定性差。廈門宏發電聲有限公司繼電器生產的簧片插入工序是雇傭大量的工人進行操作,產品的質量無法保證。As it introduces extra shields, area minimization is also critical for an efficient sino algorithm. in this paper, three novel algorithms using fewer shields to solve crosstalk reduction problem with rlc noise constraint are proposed, namely, net coloring, efficient middle shield insertion emsi and nc emsi two - step algorithm
雖然目前對于互連線的分析還主要基於電阻電容rc模型,然而進入千兆赫茲設計后,片上電感的影響越來越顯著,因此必須考慮包括電感在內的電阻電容電感rlc模型。分享友人