放大特性 的英文怎麼說
中文拼音 [fàngdàtèxìng]
放大特性
英文
amplification characteristic- 放 : releaseset freelet go
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。On the other hand, there is substanial evidences tha dcs mediate tolerane. the gm - csf - stbolated mouse bone mwderived mhc class ii + dc progendors tha are deficient in cell surface erpression of the costbolatory molecules b7 - l and b7 - 2 can induce alloanginspecific t ceil anergy in vbo. systendc adchstraion of these donor - derived dc progendors to recipients intravenously 7 days before transplantation prolonged the median graft survival tane from 9. 5 days to 22 days wbout additional twnosuppressions in a mouse cardinc twlanation model
1995年, lul等報道表面缺乏共刺激分子,特別是缺乏cd80 ( b7 - 1 )和cd86 ( b7 - 2 )的未成熟型dc能在體外誘導同種抗原特異性的t細胞無能,而對dc的適當處理能夠使未成熟型dc潛在的耐受原性得以放大和增強,使得dc在誘導免疫耐受中具有相當重要的作用及潛在的應用價值。Asymmetric autocatalysis intrinsically has the following advantages : chiral amplification of production, high reaction efficiency, easy purification of the products, consecutive reaction, which is a new aspect of chiral synthesis
不對稱自催化具有手性自動放大、反應活性較高、產物處理較易、反應體系連續等特點,是不對稱化學的一個新的領域。Piezoelectric - stack can give more output displacement and pressure and have more rate of conversion and more stability than bimorph type. it has been used to all kinds of driving places. design of displacement amplification we design displacement amplification because of the little displacement output of the piezo - stack. this paper analyses the disadvantage and advantage of all sorts of amplification, and proposes a new type of displacement amplification based on
鑒于壓電疊堆輸出位移小的特點,引入柔性鉸鏈位移放大機構,分析了各種放大機構的優缺點並結合實際問題,設計出基於三角形放大原理的橢圓形放大機構,利用有限元分析軟體ansys對放大機構的主要結構參數進行了分析,得出影響放大機構放大倍數的規律。Direct current amplifiers - characteristics and test methods
直流放大器特性和測試方法Direct current amplifiers ; characteristics and test methods
直流放大器.特性和試驗方法Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比;通過提高壓縮比來彌補動力性的損失;以動力性為主控目標,對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節;通過空燃比的合理控制,直接改善發動機的動力性、經濟和排放指標;作為對缸內燃燒過程的理論分析,進行了燃燒特性的實驗測試;對原汽油機和新開發的液化石油氣發動機,進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。Nonlinear study of the elliptical wave - guide fem amplifier
放大器的非線性特性研究From such different angles as philosophy, economics, politics, sociology and psychology, i analysized students " problems in ideals and convictions and the reasons, from which we may infer that the characteristics of market economy, the practice of reform and opening policy, the changes in international polictic situation, process of economic globalization and misconstruction in college education have brought about great impact and complex influence towards college students " ideals and convictions
本文從多方面對大學生理想信念方面的問題進行了分析,並且從哲學、經濟學、政治學、社會學、心理學等角度探討了問題產生的原因,認為市場經濟的特性、改革開放的實踐、國際政治局勢的變化、經濟全球化的進展、高校教育的誤區等,都給大學生的理想信念造成嚴重沖擊和復雜的影響。The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨導線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器,獲得了良好的頻率響應。Plasma ignition for engine is a new pattern portfire, it firstly lights up the start - up oil and form ignition torch to ignite the main oli in the combustor. lt is a new technolygy, at the present only ukraine have used this technique in marine gas turbine and the ground gas turbine to increase the reliability of retro fires and extend the concentration limit of retro fires
等離子點火技術是一門新興技術,目前只有烏克蘭將該技術應用到了艦船燃氣輪機和地面燃氣輪機上,由於該項技術主要點火設備具有獨特的放電特性和較大的放電能量,並且能量集中,使發動機的點火可靠性和點火的濃度極限得到了極大的提高。The relative air density decreases with the increasing of altitude. therefore, the discharge performance of air - gap and insulator string at high altitude regions is different from that of the referring standard conditions
高海拔地區相對空氣密度較低,絕緣子和空氣間隙的放電特性與低海拔地區有很大的差異。According as the analysis of third - order inter - modulation of high - power amplifiers, an innovative practical method to adjust the feed - forward amplifier system to optimize the performance of feed - forward amplifier system is described. the application of feed - forward linearisation to a 890 - 915mhz amplifier is described
詳細分析了高功率放大器的三階互調產物的特點,並據此創新的提出了調整前饋線性化系統狀態,優化前饋放大器性能的正確方法。But for the final energy structure of er3 +, property of edfa ' s gain has its inherent disadvantage : edfa ' s gain is different vs wavelength, in other words, its gain spectrum is not ideally flat, so the output signal will be different if the input signal have the same power
但是由於edfa中工作物質鉺離子能級結構的影響, edfa對光信號的放大特性也有其固有的缺陷: edfa對不同波長的光信號的增益並不完全相同,即其增益譜不平坦,因此一組強度相同的光信號經過放大后的強度會有所不同而產生偏差。The amplification characters of er3 + / yb3 + co - doped fiber are studied in our experiments. when the doped fiber length is 50cm, the amplified signal power is 170mw and the gain is 12. 2db in the case of signal power of 10. 8mw and pumping power of 2. 5w
本論文著重研究了採用一級放大時,信號光在雙包層光纖中的放大特性,截取50cm的光纖,在輸入泵浦光功率為2 . 5w ,信號光功率為10 . 8mw時,獲得了170mw的放大信號光輸出,增益為12 . 2db 。So, based on the important project, the discharge performance of short rod - plane air gaps and short insulator strings has been researched in this dissertation, which there is not only very important value of engineering application but also very important value of learning
因此,結合西部大開發的重點工程建設需要,論文選擇海拔4000m以上大氣條件下空氣間隙和絕緣子放電特性作為研究課題,具有重要的工程應用價值和學術意義。Piezoelectric phase shifter was studied, and a kind of phase shifter with flexible hinge was presented
摘要對壓電式移相器進行了研究,設計了具有放大特性的柔性鉸鏈式移相器。By analyzing the charging & discharging characteristics of accumulators, and by improving the hardware and control algorithm of the former chargers, this dissertation designes a high - power charger. the charger can not only charge accumulators with constant voltage and limited current, but also charge them intelligently. meanwhile, it is characteristic of over - voltage, over - current and overheat protection, self - recovery and automatic current - averaged in parallel
本論文通過對蓄電池的充、放電特性的分析以及對以往充電機硬體和控制演算法兩個方面的改善,設計了一種不僅能對蓄電池進行恆壓限流充電,還可以進行智能充電,同時具有過壓、過流、過熱保護、自恢復功能和並聯自動均流的大功率充電機。We study mainly the property of pulse amplifier of soa and the pulse compression shaping of being based on soa and all optical wavelength conversion ( aowc ) of being based on soa
本文主要研究了soa對光脈沖的放大特性和基於soa的脈沖壓縮整形以及全光波長變換( aowc )等。After that, this paper briefly introduced the optical splitter ' s characteristics of amplication by calculate a uniformly widen three energy level ratio equation and transmission equation. since providing these theories and results, this paper began to discuss on the material characteristic and the whole craft process in short
然後,本文通過計算均勻加寬三能級結構的速率方程和傳輸方程,對光分路器的增益放大特性作出了一般的理論分析。在有了以上的理論計算和分析之後,本文概括地討論了製作光分路器的材料特性和工藝過程。分享友人