零自旋 的英文怎麼說
中文拼音 [língzìxuán]
零自旋
英文
spinzero-
This section essence shrinks the proportion is 1 : 43 simulation model vehicle the east wind - 11 short distance trajectory guided missile truck which develops voluntarily by our country, may mobile launch carries the system is a prototype, the chassis and the missile are the alloy manufacture, the missile may take out from the discharger or revolves along with the discharger to each angle, all vehicle doors may open, the rubber tire may rotate, the zero number of articles approaches 200
此款精縮比例為1 : 43的模擬模型車以我國自行發展、可機動發射的東風- 11短程彈道導彈車載系統為原型，車體及導彈為合金製造，導彈可以從發射架上取出或隨發射架旋轉至各個角度，所有車門均可打開，橡膠輪胎可以轉動，零件數接近200個。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義Woven wire mesh series : stainless steel wire mesh, brass wire mesh, copper wire mesh, phosphor bronze wire mesh, barbecue grill mesh, crimped wire mesh, low carbon steel wire mesh, mild steel wire mesh, black wire cloth, window screening netting, vibrating sieving mesh, filter for gas and liquid, conveyer belt, chain link fence, galvanized square wire mesh, hexagonal wire mesh
此網帶由雙股右螺旋或由雙股左螺旋盤條與一根串條連接而成，網帶拼接方便，網眼一般小於單股加強編織的網眼，編織牢固，不易變形，維修方便。能用於高溫的自動流水線，輸送重物，機械工業上零件的熱處理，各種較大物品的烘乾。All day the sun has shone on the surface of some savage swamp ， where the single spruce stands hung with usnea lichens ， and small hawks circulate above ， and the chickadee lisps amid the evergreens ， and the partridge and rabbit skulk beneath ； but now a more dismal and fitting day dawns ， and a different race of creatures awakes to express the meaning of nature there
整天，太陽曾照在一些荒野的沼澤表面，孤零零的針樅上長著地衣，小小的鷹在上空盤旋，而黑頭山雀在常春藤中躡嚅而言，松雞、兔子則在下面躲藏著；可是現在一個更陰郁、更合適的白晝來臨了，就有另外一批生物風雲際會地醒來，表示了那裡的大自然的意義。Meanwhile, the nesting map produced by the automatic nesting system may be locally optimized through changing the mutual positions of the parts, or revolving and moving the parts
同時，自動排樣系統產生的排樣圖還可以通過零件之間互換位置，零件的旋轉、移動等方式來對局部實現優化。And then, we specially study the effect of spin interaction ' s anisotropy on the critical temperature tc. from what we have observed we suggest that the critical temperatur tc grows as the anisotropy intensifies, while the system magnetization becomes weaker. the system becomes id if the anisotropy ratio r goes to infinity, and its equilibrium state keeps zero magnetization at any finite temperature, which confirm that there is no observable transition for id system
其後，著重研究了自旋相互作用的各向異性程度r對其臨界溫度t _ c的影響，總結出：隨著系統各向異性程度的增強，系統的臨界溫度向高溫轉移，而系統的磁化強度在不斷的減弱；當r趨近於無窮大時，系統演變為一維系統，系統在任何有限溫度下達到的平衡態始終保持磁化強度為零，這也證實了一維系統不發生相變Because of the advantages of small size, light weight, fewer moving parts and hi performance, the rotary compressor, such as the sliding compressor, the rolling piston type rotary compressor and the scroll compressor, is widely used in the air conditioner and refrigeration system. but these rotary compressors still have many disadvantages
回轉壓縮機，如滑片壓縮機、滾動轉子壓縮機、渦旋壓縮機等，因其體積小、重量輕、零部件少及性能好等優點，被廣泛應用於空調、製冷行業中，但這些壓縮機自身仍存在許多不足之處。In terms of the measure of entanglement called " negativity ", the thermal entanglement in a two - qubit spin - 1 system with two spins coupled by exchange interaction is investigated, we find that there is a segment for j in which the entanglement is zero, moreover the segment increases with t, this is different from the cases of the spin - 1 / 2
應用糾纏度對高維度系統的度量方法- - - 「 negativity 」 ，我們研究了自旋等於1的兩量子比特系統的熱糾纏，我們還發現在耦合常數一般區域糾纏度為零，這個結論和自旋等於1 2的情況是不同的。Based on the self - consistent nonlinear theory of complex cavity gyrotron with gradual transition, a simulation code of self - consistent nonlinear beam - wave interaction has been made, in which the multiple modes interaction with an electron beam and the mode coupling are taken into account. the interaction between the electron beam and hsn - h521 rf field for third - harmonic gyrotron is simulated. the influences of the thickness and the velocity spread and the velocity ratio of the electron beam and the fluctuation of the magnetic field and the technologic errors of complex cavity on the multi - modes interaction with an electron beam are analyzed
二、在漸變復合腔迴旋管多模自洽非線性理論的基礎上，編制了高次諧波漸變復合腔迴旋管多模注?波互作用自洽非線性模擬軟體，並對8mm波段三次諧波漸變結構復合腔迴旋管的注? ?波互作用進行了大量的自洽非線性數值模擬計算與研究，進而分析了電子注的厚度、速度零散、速度比值、磁場波動、腔體尺寸的加工誤差等等多種因素對互作用效率的影響。After a long time evolution, the system finally reaches a stable state at which the magnetization and the equal time spin - pair correlation are periodic oscillating functions with the equal period as the external field. numerical simulation shows : when the amplitude of external filed is large, there exits a particular temperature at which the average magnetization and the average spin - pair correlation are almost unaltered with various field amplitude ( i. e. magnetic susceptibility is zero ), and the particular temperature depends on the number of the spin states, cutting down with q increasing
由數值模擬得到：當外場幅度較大時，存在一個特殊的溫度點（我們稱之t ） ，在這個溫度點，系統的平均磁化強度和平均等時自旋對關聯隨外場幅度的變化幾乎保持不變（即磁化率為零） ，並且這個溫度的大小依賴于自旋態數目q的變化， q越大，這個溫度就越小；而當外場較小時，確信系統存在有限大小的臨界溫度By means of the measure of entanglement called " concurrence ", we study the entanglement in heisenberg a single molecular magnets dimer v + with a strong magnetic field and find that thermal entanglement exits for both ferromagnetic ( fm ) and antiferromagnetic ( afm ) cases. in fm case entanglement vanishes for anisotropic parameter value = 0, while in afm case, entanglement exits in the whole region of anisotropic parameter 0 < < 1. an interesting conclusion is that the critical temperature is independent of the magnetic field
應用糾纏的一種測量「 concurrence 」 ，對自旋二聚物v ~ （ 4 + ）在外加強磁場情況下的熱糾纏進行了研究，發現對于鐵磁和反鐵磁兩種情況，熱糾纏都存在；鐵磁情況下，在各向異性常數等於零的時候糾纏消失，而對于反鐵磁在整個各向異性常數變化范圍內糾纏都存在，有意思的是我們發現臨界溫度獨立於磁場b ，我們也研究了糾纏度隨各向異性常數、磁場和溫度的變化。In the first part, we present a study of the single - spin transition critical dynamics of id and q states potts model
在第一部分，我們給出了一維q態的potts系統在零外場中的單自旋躍遷動力學研究。21 - 28 september 2005 notice to users : all satellite imageries used in " tropical cyclones in 2005 " web page were originally captured by multi - functional transport satellite - 1r mtsat - 1r of japan meteorological agency
二零零五熱帶氣旋網頁所用的衛星圖像接收自日本氣象廳的多用途輸送衛星- 1r multi - functional transport satellite - 1r ，簡稱mtsat - 1r 。All satellite imageries used in " tropical cyclones in 2005 " web page were originally captured by multi - functional transport satellite - 1r mtsat - 1r of japan meteorological agency. anyone wishing to further disseminate these satellite images should seek permission from jma
二零零五熱帶氣旋網頁所用的衛星圖像接收自日本氣象廳的多用途輸送衛星- 1r multi - functional transport satellite - 1r ，簡稱mtsat - 1r 。Provisional reports on individual tropical cyclones affecting hong kong have been prepared since 1960 to meet the immediate needs of the press, shipping companies and others
為了能盡早滿足傳媒航運界及其他有關人士或團體的需求，天文臺自一九六零年開始就影響香港的個別熱帶氣旋編寫臨時報告。The improved theory have succeeded in applying to gaussian model. in the third chapter, based on the single - spin transition dynamics, we discuss the time evolution of the local magnetization in the anisotropic three - dimensional xy model under the zero external field
第三章在單自旋躍遷臨界動力學的基礎上，討論零場下三維（ 3d ）各向異性晶格上xy模型的局域磁化強度的時間演化。分享友人