A modified backward Euler method is developed which enables to increase considerably the accuracy of jump voltage computation as a result of freeing its computing from the influence of the faint asymmetrical initial current in such an inductive circuit as converter and completely eliminate numerical oscillation in converter simulation as often seen in the case of implicit trapezoidal integration method.

本文提出一種變形的后退歐拉法国产精品看黄网站，用該法對(duì)換流器這樣的純電感電路進(jìn)行躍變電壓計(jì)算毛片基地在线视频无码，可完全避免初始電流中微弱的不平衡對(duì)躍變電壓計(jì)算的影響在线观看黄片免费，大大提高了躍變電壓的計(jì)算精度www小视频在线观看，并徹底消除了隱式梯形積公法用于換流器仿真時(shí)所存在的非原型數(shù)值振蕩。

On the same time, using GTM density control the construction quality reduce the phenomenon that the compactness is larger than 100%, and avoid pursuing the levelness with insufficient real compactness.

試驗(yàn)路的施工表明国外超碰97人人爽人人做，用GTM方法推薦的級(jí)配的施工工藝與馬歇爾設(shè)計(jì)方法推薦級(jí)配的瀝青混凝土相同，只要碾壓組合方式合理自拍国语日韩欧美视频在线播放网站，均可得到要求的壓實(shí)度和現(xiàn)場(chǎng)孔隙率国产精品美女久久久久AV，同時(shí)，用GTM密度控制施工質(zhì)量減少了壓實(shí)度超百的現(xiàn)象视频三区欧美极品在线看片，從而避免了實(shí)際壓實(shí)度不夠情況下追求平整度的現(xiàn)象亚洲av永久无码天堂网不卡。

The algorithm can be served as the inverse operation of raster to 2DRE quadtree, but it is not direct inversion, instead, it takes other simpler measur i.e. intersection of 2DRE quadtree and code transforming method in Raster to Quadtree conversion, to make the algorithm more effective. It can also avoid possible trouble of memory overflow caused by the operation on bigger images in smaller memory.

這一算法可看作柵格—2DRE四叉樹變換算法的逆變換，但不是它的"反演"噜噜在线，而是采用了較為簡(jiǎn)潔的求交集運(yùn)算以及柵格—2DRE四叉樹變換算法中的編碼轉(zhuǎn)換方法高清一区二区三区视频，使得這一算法的實(shí)現(xiàn)更加有效，且避免了在圖像較大而內(nèi)存較小的情況下可能發(fā)生的"溢出"等矛盾国产一级av免费看。

The analytical method is always used due to the large amount of the objects and not very high accuracy of forecasting. A method based on the position and velocity derived from the mean orbit elements directly is given, which is to avoid the problem of singularity in calculating the periodic terms of orbit elements variation, thus the process and software can be simplified.

在已有分析法得到t時(shí)刻平均根數(shù)的基礎(chǔ)上給出一種軌道預(yù)報(bào)方法福利国产亚洲，由t時(shí)刻的平均根數(shù)給出該時(shí)刻衛(wèi)星的位置和速度，在此基礎(chǔ)上將地球非球形引力攝動(dòng)的周期項(xiàng)直接用衛(wèi)星直角坐標(biāo)的位置和速度分量表示欧美,国产,日韩黄色视频，這樣可以避免在計(jì)算軌道根數(shù)變化的周期項(xiàng)時(shí)出現(xiàn)的奇點(diǎn)問題AA黄片A，從而對(duì)根數(shù)的選擇無特殊要求，可適用于各種軌道毛片看A片免费的，簡(jiǎn)化預(yù)報(bào)程序和相應(yīng)的軟件一片黄色网站最好的，提高預(yù)報(bào)效率。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本發(fā)明涉及全固體激光器的光泵浦系統(tǒng)羞羞网站在线，特別是一種盤式激光器的光泵浦系統(tǒng)成人蕾丝电影在线播放视频免费。包括熱沉1、激光晶體2免费黄色丝袜网站、光纖3真实普通话对白嫖妓视频、平面反射鏡4、第一凹面反射鏡5AV原创在线、第二凹面反射鏡6欧美色图亚洲图片、第三凹面反射鏡7，本發(fā)明采用平面反射鏡位于光纖與第一凹面反射鏡之間的結(jié)構(gòu)免费啪啪黄色视频，使LD和激光腔位于本發(fā)明激光晶體的同一側(cè)啊轻点啊视频，從而減小了激光器的封裝尺寸亚洲欧美精品；本發(fā)明將平面反射鏡固定在熱沉上，使泵浦光束斜入射角減小黄色视频在线观看地址，泵浦光則能充分吸收97免费无码视频人妻超级碰碰碰，為此，本發(fā)明解決背景技術(shù)采用第一凹面反射鏡使泵浦光束斜入射角過大引起的像散免费aⅴ无遮拦网站观看，泵浦光斑變形引起泵浦效率降低問題欧美午夜A级限制福利片，使得本發(fā)明可選用大面積半導(dǎo)體制冷器，避免使用水冷黄色网站欧美性爱，則激光器的體積大大減少高清无码内射操逼肏屄，有利于產(chǎn)品的全固化，保證了激光晶體的散熱要求亚洲黄网址。

The research and development of visualization system of electromagnetic environment monitor is very necessary, and it is very important significance. It can assure the quality of communication for avoiding the interface of electromagnetic signal, live up to reasonable layout and distribution for the construct of mobile communication station and radio monitor station, reduce the endangerment electromagnetic radicalization for surrounding environment and body of people.

為了避免電磁信號(hào)之間的相互干擾爱爱潮喷小视频免费播放，保證通信的質(zhì)量；為了對(duì)移動(dòng)通信基站或無線電監(jiān)測(cè)站的建設(shè)免费Ⅴa在线观看，做到合理的規(guī)劃和布局欧美一区二区黑人在线电影院；為了減少電磁輻射對(duì)周圍環(huán)境和人體的危害，研究并開發(fā)電磁環(huán)境監(jiān)測(cè)可視化系統(tǒng)就顯得很有必要免费看黄污，具有十分重要的意義欧美一级日本。

The results show that not only the porosity does greatly affect the windbreak, but also the tree distance does. The distance is not beyond 1.3 to avoid air leak. The tree belt with porosity 31% has bigger windbreak range and better characteristics for abating wind erosion. The tight nubby tree belt is advised to restrain the particles adhering on the leaves refloating for large velocity deficit in trees.

結(jié)果表明：不僅林冠疏透度對(duì)防護(hù)林帶的遮蔽防風(fēng)有明顯影響，而且樹木間的株距對(duì)林帶整體的遮蔽效果也有比較顯著的影響美女18黄色，為避免穿流風(fēng)對(duì)遮蔽效應(yīng)的影響人人着人人摸人人操，林帶寬距比不宜超過1.3；疏透度為31%的網(wǎng)狀林帶的有效防護(hù)范圍大成人黄色网站18，防風(fēng)效果好而且水土保持性強(qiáng)肏屄视频久久网；緊密型塊狀林帶，林后速度衰減幅度大先锋影音最新色资源在线观看，可抑制附著在葉片上粉塵的再次揚(yáng)塵99精品久久精品在免费线18。

Adjusting insertion depth of the tuning screw pin at any moment can reach tuning effect to make waveguide device match to load of resonant cavity well in order to adapt to everchanging equivalent load of resonant cavity in course of working so as to realize real time control of energy coupling. The invention helps to increase working accuracy and efficiency of PCVD technique, and prevent damage on system device from microwave so as to raise useful service life of system. Features are: simple structure, stable performance, convenient for fabrication.

本發(fā)明通過在諧振腔設(shè)置調(diào)諧銷釘，可隨時(shí)調(diào)節(jié)銷釘?shù)牟迦肷疃葋磉_(dá)到調(diào)諧的效果riav视频，能使波導(dǎo)裝置很好地與諧振腔負(fù)載匹配韩国无码视频免费观看，以適應(yīng)加工過程中諧振腔等效負(fù)載的不斷變化，實(shí)現(xiàn)能量耦合的實(shí)時(shí)控制2021国内自拍偷拍；同時(shí)有助于提高PCVD工藝的加工精度和效率色惰中老年妇女毛片视频，避免微波對(duì)系統(tǒng)器件的損壞，提高等離子體諧振腔微波系統(tǒng)的有效使用壽命国产精品无码你懂的；本發(fā)明還具有結(jié)構(gòu)簡(jiǎn)單国产精品无码久久久久，性能穩(wěn)定，便于加工和制作的特點(diǎn)欧美精品a。

These antennas can cover GSM900/DCS/PCS/UMTS operation. In the chapter 2, the antenna is designed based on the concept of monopole antenna. Furthermore, the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching. In addition, to raise distance between radiation plane and ground will avoid capacitative effect effectually. In the chapter 3, the antenna is designed based on the concept of planar inverted-F antenna. Furthermore, that the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching is similar to chapter 2. But there is a difference in them. We can choose the short position to change input impedance at this structure. In the chapter 4, the antenna is designed based on the concept of planar inverted-F antenna which takes coupled-fed. It will produce the first mode and high-order mode near the frequency, 900MHz. The feature of this type is to reduce the volume effectually. This antenna can not only cover GSM900/DCS/PCS/UMTS operation but maintain good radiation efficiency. Finally, we will compare three antennas, and develop procedure with industrial view, and propose the prospect of the GSM/GPRS antenna in PND, as a conclusion.

在第二章中欧美日韩人妻在线视频，我們使用單極天線設(shè)計(jì)概念欧美精品日韩一区二区，使用雙路徑架構(gòu)并於末端耦合來對(duì)天線阻抗做匹配，產(chǎn)生涵蓋GSM900/DCS/PCS/UMTS四頻操作頻帶网站免费看你懂的，并提高與接地面的輻射高度国产高清免费视频色拍拍，以避免電容效應(yīng)，使天線具有良好的輻射特性中国体内精谢视频免费；在第三章中婷婷五月综合色啪网站，使用倒F形天線設(shè)計(jì)概念，使用雙路徑架構(gòu)於末端耦合欧美一级A片又大又爽，并於輻射臂上采取適當(dāng)接地點(diǎn)電感效應(yīng)作輸入阻抗匹配来个能看的黄网，達(dá)成涵蓋GSM900/DCS/PCS/UMTS系統(tǒng)的四個(gè)操作頻帶；在第四章中桃花在线观看国产电影，采用倒F形架構(gòu)并使用耦合饋入方式成人深夜视频网站播放器，使得長(zhǎng)輻射金屬臂在低頻900 MHz附近產(chǎn)生共振，產(chǎn)生低頻基頻模態(tài)及高階模態(tài)免费一级A片男女牲交无遮挡，以達(dá)成寬頻及頻寬涵蓋GSM900/DCS/PCS/UMTS頻帶操作，并有效縮減使用體積狼人狠狠干；最后亚洲国模大胆私拍久久av，分別比較此三種架構(gòu)的優(yōu)缺點(diǎn)，再加以業(yè)界角度來思考精品国产欧美在线观看不卡，研發(fā)產(chǎn)品天線的流程及思考方向日韩图片自拍视频在线播放，以及天線應(yīng)用於可攜式導(dǎo)航裝置中未來的展望作為本論文的總結(jié)。

A natural anxiety to escape the awful consequences of determining a particular act to be mortally sinful, and a desire, equally intelligible, to assist the Roman Catholic Church in its conflict with Protestantism by disburthening it of an inconvenient theory, were the motives which impelled the authors of the Casuistical philosophy to the invention of an elaborate system of criteria, intended to remove immoral actions, in as many cases as possible, out of the category of mortal offences, and to stamp them as venial sins.

迫使詭辯哲學(xué)的著者發(fā)明一套精密的規(guī)范體系亚洲一区二区国产精品一区二区，以便在盡量把不道德行為從不可赦犯罪的范疇中移出來免费在线免费在线看a片，并把它們定為可赦之罪，其動(dòng)機(jī)之一是出于一種自然的渴望美女裸体露双乳黄a免费网站，想要避免把一種特定行為定為不可赦罪的可怕后果欧美视频专区一，另一種動(dòng)機(jī)是出于一種同樣地可以體會(huì)的愿望，就是為天主教會(huì)解除一種不便的理論欧美暴力性爱，來幫助羅馬天主教會(huì)在和基督新教進(jìn)行的沖突中取得勝利免费一级A级高清毛片人妻。