pulse size 中文意思是什麼
pulse size
解釋
脈沖振幅大小-
For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least
直流電沉積時，基質金屬的沉積連續進行，粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附，重新回到溶液中;採用周期換向脈沖時，反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附，同時，反向脈沖電流對基質金屬的溶解作用，也會促進粒子的脫附，因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加，三種鍍層的晶粒都明顯細化，說明al _ 2o _ 3的存在阻止了晶粒的長大，提高了電沉積過程中晶核的形成速率。 -
All analysis and simulations results indicate several methods improving the insulation recovery of spark gap switch : ( 1 ) using the gas with good thermal conductivity, such as h2 and sf6 ; ( 2 ) using the gas flow ; ( 3 ) utilizing the v / p cure ; ( 4 ) modifying the geometry and size of the electrode ; ( 5 ) using the gas with good electronegativity, such as sf6. some experiments on the multi - pulse operation of high power spark gap switch are carried out. the insulation recoveries of switch without and with gas flow are both investigated
結合理論分析和模擬結果，提出了氣體火花開關多脈沖運行特性可採用如下方法: （ 1 ）使用導熱性能好的氣體，如h2 、 sf6等; （ 2 ）採用吹氣的方法; （ 3 ）增大氣壓，在電極表面增加細小結構，構造平穩的v / p曲線; （ 4 ）改良開關電極結構和尺寸，採用奶頭-半球結構的電極; （ 5 ）使用電負性強的氣體作為開關絕緣氣體，如sf6 。 -
The deposition rate of aerosol particles in capillary tube was measured with submicrometer monodisperse polystyrene spheres solid aerosol particles and pulse sample inserting technique ; and studies were made on the relationship between the flow velocity, the tube diameter, the tube length and aerosol particles size
摘要採用亞微米單分散聚苯乙烯球形硬氣溶膠粒子和脈沖進樣技術，測定了氣溶膠粒子在管道中的沈積率，研究了沈積率與流體速度、管道長度、管道直徑和氣溶膠粒子大小之間的關系。 -
Studies have shown, lead impeller nozzle it forms the hole to be equal to size of the nozzle, gush out from light, difficult to arrange bits and realize it cut one layer of advantages effectively ; under the equal condition, rotate the nozzle by oneself, can be designed in accordance with the actual need while vary the size of aperture of hole, gush out the distance longer effectively, it is apt to give play to the role of its pulse broken rock
以此設計出限速部分的參數，且初步討論射流功率與轉速之間的關系。研究表明，內導葉輪噴頭形成鉆孔孔徑與噴頭大小相當，有效噴距小，不易排屑和實現其切向剝層優勢；同等條件下，自旋轉噴頭，成孔孔徑大小可依實際需要設計，有效噴距較長，易於發揮其脈沖破巖作用。 -
The main results are as follows : 1. the propagation of an ultrashort intense pulse laser beam in low - density plasmas is investigated analytically. relativitistic pondermotive force and space - charge effects are included, and an equation describing the evolution of the laser spot size is derived
考慮有質動力與電荷分離場的平衡，推出了超短超強脈沖激光在低密度等離子體中的折射率、電子密度和電荷分離場的表達式以及激光束斑的演化方程。 -
As for high - energy linear induction accelerator, miniaturizing pulse - forming line ( pfl ) is helpful to minify the size of the massive pulsed power system. at the same time, wealth and space could be economized
同時脈沖形成線小型化對於一臺大型直線感應加速器來說，不僅有利於減小其龐大的脈沖功率系統，而且節省了大量的財力資源和空間體積。 -
In the paper, both the size of the source and of the beam spot of a extended gaussian beam are considered and their influences on both the lateral and axial resolution of a fluorescent confocal microscopy are studied and calculated based on the power transfer function and three - dimensional pulse spread function
摘要研究一定光源孔徑、束斑的高斯光束對熒光共焦顯微鏡橫向、縱向解析度的影響，導出了熒光功率傳輸函數、三維響應函數。 -
The tags, the size of a grain of rice, use the power from a radio pulse emitted by an electronic reader to send out a code which can be picked up
這種儀器，有米粒大小，以電子雷達發射的無線脈沖供能? ?可以向外界發射無線電信號。 -
The fusion mechanism of large deuterium clusters ( 100 ~ 1000 atoms / per cluster ) in super - intense ultra - short laser pulse field, coulomb explosions of micro - cluster in solids, gases and large - size clusters have been studied using the interaction of a high - intensity femtosecond laser pulses with large deuterium clusters, collision of high - quality beam of micro - cluster from 2. 5mv van de graaff accelerator with solids, gases and large clusters
摘要用2 . 5mv靜電加器提供的高品質微團簇束與固體、氣體和大尺度團簇（ 100 - > 1000原子團簇）碰撞，超強飛秒激光與大尺度氘團簇相互作用，研究微團簇在大尺度團簇中的庫侖爆炸特性，研究超短超強激光場中大尺度氘團簇的聚變機理。 -
But if we using the same size blumlein line as pfl, we can only get a square pulse with 31ns pulse duration. this experiment results show that replacing the intermediate conductor of blumlein line by helical conductor can get long pulse
實驗表明採用螺旋blumlein型脈沖形成線我們得到負載上的方波脈沖的脈寬為260ns ，而同樣長的blumlein線在負載上只能得到31ns的方波。也就是說螺旋blumlein線在原理上是可得到長脈沖的。 -
If the weld spot size is the same, the welding - parameter both high voltage, short pulse width and low voltage, long pulse width can get the same pws of lh. but the range of influence of thermal stress by long pulse is larger than by high voltage
在光斑尺寸相同的條件下，高電壓小脈寬和低電壓大脈寬可以使激光錘校正偏移達到相同的效果，但是高電壓小脈寬的焊接參數比低電壓大脈寬的焊接參數對材料的熱應力影響區要小。 -
A new type high efficiency synchronous step - up dc / dc converter for hand - held device is designed in this thesis. it works in the pfm ( pulse frequency modulating ) mode, and its switching frequency can up to 500 khz. it offers a built - in synchronous rectifier that reduces size and cost by eliminating the need for an external schottky diode and improves overall efficiency by minimizing losses
本文設計了一種用於移動電子設備的高效同步整流的dc / dc升壓晶元，該晶元採用pfm （脈沖周期調制）調制方式，工作頻率最高可達500khz ，內部集成功率管作為同步整流管，代替傳統的肖特基二極體，導通電阻僅有0 . 4
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