In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含量;
利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水率的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,
利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;
利用核磁共振對新型硅烷單體結構進行了證實;研究表
明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。
A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算,多重網格法
利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序,驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較,可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表
明利用多重網格法計算三維場大大提高了場分佈的計算效率,縮短了計算時間,因此為后續計算打下了良好的基礎
These kerfuffles show that conflicts of interest can probably be solved by market pressure rather than intervention by regulators
這些混亂表
明利益沖突或許更能夠被市場壓力解決而非調整者的干涉。
Our experiments show that the photogrammetry with digital camera has a better precision and the large scale topographic map and orthograph can be produced with it
試驗證
明利用數碼相機進行攝影測量精度很高,能夠用來測制大比例尺地形圖和正射影像圖。
The simulation result has indicated that using the method of two - value filter can solve the question perfectly, and the question is the edge discontinuity of traditional image classify base on region ; the image fusion which make use of edge gradually change is sententious and efficient ; the color image reinforcing which realized by grey statistics histogram equalization method has reduced the need of environment brightness in virtual photographing system
模擬結果表
明,
利用二值濾波處理較好地解決了傳統的基於區域的圖象分類中的邊緣不連續的問題;
利用邊緣漸變方式實現的圖像融合簡潔有效;由灰度統計直方圖均衡所實現的彩色增強處理降低了虛擬照相系統對環境照度的要求。
As showed by the results, mpf is advantageous for the stable formation or growth of pre - sintered glass beads, and it can partly guarantee the desired " results of sintering
研究結果表
明,
利用復配造孔劑有
利於顆粒的穩定生成和成長,在一定程度上保證燒結過程達到理想狀態。
( 3 ) in the dy - lamp experiments, we study the spectrum distribution of relative - energy. firstly, it is tested by providing bandwidth and the numbers of the band according as a standard of the solar simulator. the result shows it cannot achieve a standard of the solar simulator that the spectrum distribution of the dy - lamp is simulated the solar spectrum ; however, if according as b standard, then it can attain the request of b standard of the solar simulator
研究了鏑燈光譜相對能量分佈,首先根據a級模擬器提供的帶寬和帶數對鏑燈的光譜能量分佈進行了測試,測試結果表
明,
利用鏑燈來模擬太陽光譜達不到a級模擬器的要求;根據b級模擬器提供的帶寬和帶數對鏑燈再次進行測試,並與b級的光譜失配誤差進行比較,結果表
明,
利用鏑燈來模擬太陽光譜可達到b級模擬器標準。
In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared
本文在已有研究成果的基礎上進一步開展了以下幾方面的研究: ( 1 )在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上,提出了廣義雙層地基模型的概念,並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中; ( 2 )根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式,編制了程序,調試通過並驗證了其正確性; ( 3 )通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降,矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算,探討了雙層地基中的附加應力與沉降特性; ( 4 )應用本文的層狀地基體系理論對一個工程實例進行了計算分析,並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析,結果表
明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。
At last ejecting mixer by design has been validated through experiment, and it is showed that the tired heat produced by under - water carrier can be completely converted and released, and the design goal has been achieved
本文最後通過實驗對所設計的噴射混合器進行了實際的驗證,實驗結果表
明,
利用噴射混合器完全能夠將水下運載器在工作過程中產生的乏熱轉換釋放,達到了設計要求。
The main scattering mechanism is ionized impurity scattering and acoustical phonon scattering. the experimental results show that the high quality of zno. al films were obtained
實驗結果表
明利用電子束蒸發技術制備的zno : al薄膜材料,具有較好的結構及光電特性。
The robustness and associated memory of ann make the method more advantageous than tradition method. the simulation results show us that the proposed method can perform correct diagnosis in the linear analog circuit with tolerances
通過電路模擬表
明,
利用所提出的實現方法對具有容差的模擬電路進行了較為準確的診斷,達到預期的自的。
Experimental results show that the model achieves higher lossless compression rate of image than lossless spiht and lossless ebcot used in jpeg2000
實驗結果表
明,
利用這種模型獲得的平均無損壓縮比高於spiht和用於jpeg2000的ebcot 。
Practice showed that crosswell seismic data can outline minor structures that conventional seismic cannot reveal, can be used to determine reservoirs and their distributions that conventional seismic cannot distinguished, and to describe the spatial distribution of single sand bodies
實際資料解釋表
明,
利用井間地震資料發現了常規地震所不能發現和確定的小構造,精確描述了常規地震無法分辨的儲層及其橫向變化特點,並且描述了單砂體的空間分佈。
It was shown that the dimension analysis was an effective method in simulating the complex laser bending process, and the control model that came from non - dimensional group data of simulations, was a high - accuracy model in predictive analysis
研究結果表
明,
利用量綱分析法模擬復雜的激光彎曲過程是簡便有效的,基於模擬模型無因交次群組合的設計相應的參數可使控制模型達到較高的預測精度。
Designing with this software can shorten the design cycle of the new product, lowering the consumptions of the new production and the production cost, advancing the dimensional accuracy. it has the important significance for increasing the economic benefit of the enterprise
經過工廠實踐使用表
明,
利用這個軟體進行設計起重機小車,極大地縮短了新產品的設計周期,降低了設計和生產成本,使得在設計方面耗費的時間降低、設計效率高,對企業生產效率及經濟效益的提高具有重要意義。
It is found that flat and wideband sc ca n ' t be obtained in common dispersion - shifted fiber, and dispersion - flattened fiber with small normal gvd is most suitable for flat and wideband sc generation ( 2 ) sc generated in dispersion - flattened / decreasing fiber is studied profoundly
結果表
明,
利用自相位調制效應在常規色散位移光纖一般不能產生平坦、寬帶的sc譜。具有較小正常色散的色散平坦光纖有
利於平坦、寬帶sc譜的形成。 ( 2 )研究了色散平坦漸減光纖中sc譜的產生。
Wang yongqian, liao xianbo, ma zhixun, et al. solid - phase crystallization and dopant activation of amorphous silicon films by pulsed rapid thermal annealing [ j ]. applied surface science, 1998 135 : 205
薛清,郁偉中,黃遠明.利用快速退火法從非晶硅薄膜中生長納米硅晶粒[ j ] .物理實驗, 200222 ( 8 ) : 17