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There are series of papers studying the solvability of an incompressible, viscous, instationary fluid contained in a domian bounded entirely by a free surface. In 1977, Solonnikov proved its local solvability in a Holder space for any initial date but without surface tension. In 1984, he considered the same problem in a Sobolev space with surface tension being taken into account. In I992, Mogilevskii and Solonnikov treated the same problem in a Holder space, where the coefficient of surface tension is not a constant. There are also short-time existence results for the solvability of an incompressible, vicous, unsteady fluid bounded above by a free surface and below by a fixed bottom which approach horizontal planes at infinity. In 1981, Beale proved its local solvability in a Sobolev space for any initial date but without surface tension. In 1983, Allain were concerned with the same problem in R〓 with surface tension but under the assumption that the initial fluid domain was near a horizontal strip. In 1987, he obtained the same result without the preceding assumption. In 1996, Tani solved the same problem in R with surface tension. For the solvability of an incompressible viscous instationary fluid in Ω R bounded inside by a free surface S and outside by a rotating boundary S, in 1995 Ciuperca proved its local existence in a Sobolev space for any initial date but without surface tension. In this paper, we consider the same problem with surface tension.
對于邊界完全是由自由邊界組成的有界區(qū)域中粘性不可壓流體的非定常運動問題免费一级精品,Solonnikcv于1977年在忽略表面張力情況下證明了初值問題小時間解在Holder空間的存在性,于1984年在有表面張力情況下證明了初值問題問題小時間解在Sobolev空間的存在性国产精品区第33页,Mogilevskii和Solonnikov于1992年在表面張力系數(shù)可以不是常數(shù)情況下證明了初值問題小時間解在Holder空間的存在性欧美在线观看h;對于上面是自由邊界、下面是固定邊界且兩邊界在無限處趨于水平的無限區(qū)域中粘性不可壓流體的非定常運動問題乱弄欧美丰满胖老熟妇,Beale于1981年在忽略表面張力情況下證明了初值問題小時間解在Sobolev空間的存在性人人爱人人操人人看,Allain于1983年在有表面張力情況下證明了R中初值問題小時間解在Sobolev空間的存在性,但其中假定初始區(qū)域近似是個水平條,他于1987年去掉了這個假定得到同樣的結(jié)果98资源站人妻,Tani于1996年在有表面張力情況下證明了R中初值問題小時間解在Sobolev空間的存在性AA极黄片;對于R中內(nèi)面是自由邊界、外面是旋轉(zhuǎn)邊界S的有界區(qū)域中粘性不可壓流體的非定常運動問題欧美三级视频播放在线观看网址,Ciuperca于1995年在忽略表面張力情況下證明了初值問題小時間解在Sobolev空間的存在性十八禁亚洲黄污啪啪网站,本文考慮了在有表面張力情況下初值問題可解性問題。
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The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.
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For the case of PV-TW system without window-without heat storage-with/without DC fan-with periodically operating air vents and that with window-with heat storage-without DC fan-with periodically operating air vents, the system"s model is improved and expanded, and then the simulation results are compared with experimental results to validate the new model, while the effect of DC fan and window on system"s performance are further studied.
針對無窗戶無蓄熱有無直流風(fēng)機風(fēng)口按時開關(guān)工況和有窗戶有蓄熱無直流風(fēng)機風(fēng)口按時開關(guān)工況十八禁网站址,對PV-Trombe墻系統(tǒng)模型進行了改進和拓展,并將模擬結(jié)果與實驗結(jié)果對比手机看免费毛片的网站,驗證了改進和拓展后的模型的合理性亚洲黄色视频天涯第,并進一步研究了直流風(fēng)機和窗戶對PV-Trombe墻系統(tǒng)性能的影響。
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In first love, we put in our affections suicidally , without results.
初戀都是那種自掘墳?zāi)故降母星橥度肷悠翟谙卟シ呕粕鶝]有結(jié)果国产美女自慰喷水,卻把自己埋得很深。
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Results The bletilla colloid was a homogenous viscous colloid whose relative viscosity was 2324.6 mm2/s. It was easily injected through 4-F catheter and hyperattenuating under fluoroscopy, meanwhile, with good histocompatibility and hemo-compatibility, without pyrogenetic response and toxicity. In vitro, the mixture of bletilla colloid and MMC did not produce separation and suspention phenomena but released 50%of MMC at 1.8h and 100%at 3.4h. The bletilla colloid mainly embolized peripheral arteries, maintaining occlusion for 5 weeks and without formation of collateral circulation. The injuries of normal hepatic tissues were slight, without hepatic cytonecrosis.
結(jié)果 (1)白芨膠為一種均質(zhì)的膠狀物AAA级草久影院,有一定粘滯性国产亚洲日韩欧美性爱视频在线,相對粘度2 324.6 mm2/s,不透X線加勒比婷婷色综合久久,易經(jīng)4F導(dǎo)管注射亚洲欧美一级A片综合;(2)白芨膠具有良好的血液相容性和組織相容性,無致熱原性及毒性作用操碰在线;(3)白芨膠-絲裂霉素C體外混合后啪啪黄色,無分層及懸浮現(xiàn)象,釋放MMC 50%約需1.8小時插女的网站,100%需3.4小時www.avtv在线观看;(4)白芨膠主要栓塞末梢小動脈人人caoshiping,栓塞牢靠色黄乱婬伦AV,維持時間可達5周,不易形成側(cè)支循環(huán)污Am毛片在线;(5)白芨膠栓塞對正常肝組織損傷輕微欧美旧网,未出現(xiàn)肝細胞壞死。
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Our results indicated that (1) aortic rings with and without endothelium precontracted by NE to decreased pH induced a relaxation; aortic rings with and without endothelium to increased pH induced a contraction; there is no significant difference in presence and absence of endothelium .(2)NO levels had no significant change in isolated aortic rings presence and absence of endothelium to decreased pH and increased pH ;(3)sulfite levels in isolated aortic rings with endothelium reduced to decreased pH and increased pH. sulfite levels in aortic rings without endothelium had no remarkable change.
結(jié)果:①NE預(yù)收縮后国产免费新91,pH值降低對內(nèi)皮完整和去除內(nèi)皮胸主動脈血管環(huán)呈舒張作用欧美日韩激情一区二区;pH值升高對內(nèi)皮完整和去除內(nèi)皮胸主動脈血管環(huán)呈收縮作用直接看很黄的免费网站2021;內(nèi)皮完整組與去內(nèi)皮組相比無顯著性差異;②pH降低和升高對內(nèi)皮完整和去除內(nèi)皮血管環(huán)中NO含量無顯著性影響黄片子大全;③pH降低和升高均可使內(nèi)皮完整血管組織中亞硫酸鹽含量減少igao爱搞视频在线,對去內(nèi)皮血管中亞硫酸鹽無顯著性影響。
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Our results indicated that (1)SO_2 derivatives could dose-dependently relax the isolated aorta rings with or without endothelium precontracted by NE, no difference was found for the rings with and without endothelium;(2)Levels of cAMP and 6-Keto(PGI_2) in isolated aortic rings were increased by SO_2 derivatives in a dose-dependent way, which were independent of endothelium;(3)SO_2 derivatives decreased cGMP levels in the rings, but not significantly; The decrease of cGMP levels was also independent of endothelium;(4)No changes of TXB_2 in rings with or without endothelium were observed;(5)Whether presence or absence of endothelium, cAMP/cGMP and 6-Keto/TXB_2 ratios were increased significantly.
結(jié)果:①SO_2衍生物對去甲腎上腺素預(yù)收縮的內(nèi)皮完整和去除內(nèi)皮的大鼠胸主動脈血管環(huán)均呈濃度依賴性舒張作用日本永久免费A∨,且其張力變化在內(nèi)皮完整與去內(nèi)皮的血管環(huán)之間無顯著性差異2018精品黄色视频;②SO_2衍生物可引起血管組織中cAMP、6-Keto(即PGI_2)含量劑量依賴性增加欧美A级在线现免费观看,其增加程度與內(nèi)皮無關(guān)一级毛片不卡免费;③SO_2衍生物對血管環(huán)cGMP含量呈降低趨勢但在統(tǒng)計學(xué)上無顯著意義,且對去除內(nèi)皮血管無顯著影響狼友网站国产;④SO_2衍生物對去內(nèi)皮或內(nèi)皮完整血管環(huán)的TXB_2含量均無明顯影響色呦呦.m3u8;⑤無論是否去除內(nèi)皮,SO_2衍生物均可引起cAMP/cGMP和6-Keto/TXB_2比值顯著升高亚洲伊人蕉综合网。
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In chapter 2 and 3, experimentally, using the Angular-Resolved high-resolution fast Electron Energy Loss Spectrometer , at the condition of 2. 5 keV incident energy and 50-60 meV energy resolution, we measured the Optical Oscillator Strength Density Spectra for the excitations of 4p, 4s or 3d electron. The oscillator strengths for excitations of the valent shell 4p electron were obtained, and comparisons were done between presently experimental and previously experimental and theoretical results. The experimental results of different groups agree with each other approximately, but the semi-experientially theoretical results do not match with the experimental results. The delayed maximum in the photoabsorption spectra was discussed. It should arise from the transition of 4p→∈d. For the excitation of the inner-valent 4s electron, the discrepancies for the resonant structures in previous electron-impact results and photoionization results were clarified in present work, which confirms again that the fast electron impact method is suitable to measure the optical oscillator strengths. The autoionization Rydberg series 4s〓ns (n=5, 6, 7) and 4s〓nd (n=4, 5, 6, 7) were identified without ambiguity by the measurement at 0°, 2° and 4°scattering angles. The energy levels and natural widths of the excitations of Kr3d and Ar2p inner shell, including optically allowed and forbidden transitions, were determined. The widths of these inner shell excitations are nearly the same, which was interpreted by the Resonant Auger effect .
在第二章和第三章日韩午夜在线试看网站视频免费,實驗上,使用角分辨的高能量分辨快電子能量損失譜儀能看的黄色v网站,在2.5keV電子入射能量和50-60meV能量分辨下国产又大又黄刺激又黄的视频,測量了Kr原子由價殼層4p到內(nèi)價殼層4s,再到內(nèi)殼層3d電子激發(fā)的光學(xué)振子強度密度譜在线观看黄色视频国产免费;得到了價殼層4p電子激發(fā)束縛態(tài)的光學(xué)振子強度2020欧美性爱片,與前人實驗和半經(jīng)驗理論結(jié)果作了細致的比較,說明幾家實驗是比較符合的免费视频久久久,但半經(jīng)驗的理論計算存在問題三级网址日本;分析了光吸收譜中的延遲極大現(xiàn)象,說明在第一電離閾值以上幾個eV范圍內(nèi)的極大值源于4p→εd躍遷產(chǎn)生的延遲極大免费国内精品久久久久久久;對于內(nèi)價殼層4s激發(fā)的自電離區(qū)色色色中色色,澄清了前人實驗中電子碰撞方法和光學(xué)方法在共振結(jié)構(gòu)上存在差異的問題,再一次肯定了快電子碰撞方法是獲得絕對光學(xué)振子強度的一種好方法日本XXXX厕所偷拍视频;通過在非0°散射角的測量(如2°和4°)首页国产日韩欧美第一页,清楚地標識了4s電子激發(fā)的光學(xué)禁戒躍遷自電離里德堡系列4s〓ns(n=5,6人人网人人摸人人操,7)和4s〓nd(n=4日韩AV产在线,5,6圄产精品久久久久精品,7)在线你你懂;通過在0°和4°散射角的測量,觀測并標識了幾個新的內(nèi)殼層光學(xué)禁戒躍遷能級日韩精品黄色免费在线观看,得到了Kr原子3d和Ar原子2p內(nèi)殼層激發(fā)態(tài)(包括光學(xué)允許和禁戒躍遷形成的)的能級位置和自然寬度欧美性爱白人性69交性,用共振俄歇效應(yīng)解釋了這些內(nèi)殼層激發(fā)態(tài)(不管是光學(xué)允許還是禁戒躍遷產(chǎn)生的)的自然寬度彼此比較接近的原因黄色视频在线观看链接。
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It was for this reason that Parvati, his wife, sought him everywhere without results.
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All of these endeavours, even by scholars of real repute like Descartes and Leibniz, were without results.
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
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