And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的
超車行為進行觀測，設計了根據駕駛員感受度來衡量
超車過程的實驗方案，並通過後期數據處理得到了
超車過程中兩個重要的可接受間隙參數-可
超車車頭時距和可回車車頭時距的臨界間隙值，為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時，還提出了觀測
超車率的實驗方法以及測量加速度干擾的實驗方案，統一了計算加速度干擾的時間統計間隔，為雙車道公路的服務水平量
化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。
And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results
接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變
化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值
超過20個符號長度時， map通道估計明顯優于ml通道估計。
Utilizing low denatured and defatted soybean flakers as material, a kind of functional food of soybean peptide nutrient solution which contains rich soybean peptide and little low - polysaccharide have been produced after the following production process : crushing, extracting, heat denaturing, enzyme digesting, acidifying, concocting, over - temperature sterling, canning, and so on
摘要以低變性脫脂豆粕為原料，經粉碎、浸出、熱變性、酶解、酸
化、分離、調配、
超高溫滅菌、灌裝等工藝生產出一種富含大豆肽、少量低聚糖的大豆肽營養液功能性食品。
Treatment for acute angle - closure glaucoma by the extraction of ultraemulsified cataract
超聲乳
化術治療閉角型青光眼合併白內障臨床觀察
Small incision nonphacoemulsification extracapsular cataract extraction associated with ciliarotomy for cataract with acute angle - closure glaucoma
超聲乳
化白內障摘除術治療急性閉角型青光眼
Through preparative experiments and optimized experiments on cu ~ zn ultrafine powders that are prepared by the method of thermal spray and ball milling, the author finds that dispersants concentration, dispersing time, ph, temperature and adscititious ions have significant influences on dispersing effects
西安理工大學碩士學位論文通過對熱噴塗球磨法制備的
超細銅鋅粉的分散性進行預試驗和優
化試驗，發現分散劑濃度、分散時間、 ph值、溫度和外加離子濃度對分散作用效果有重要影響。
Ultrapur is the ultra - pure reagent to meet the needs of customers in the semiconductor, new material development, medical, biochemical, agrochemical, and environmental analysis
Utrapur之
超高純度可輔合半導體，新進材料開發，醫藥，生
化，農
化及環境分析等領域的需求。
Tahir r b, molder s and timofeev e v. unsteady starting of high number air inlets - a cfd study [ r ]. aiaa 2003 - 5191
梁德旺，袁
化成，張曉嘉.影響高
超聲速進氣道起動能力的因素[ c ] / / 2005年沖壓發動機技術交流會論文集， 2005
The effects of povidone - iodine and isothiozolone on the phaeocystis globosa ' s chlorophyl, protein and sod enzyme were studied, and the modality of the algae cell was observed by sem to understand the extinguishing mechanism of algaecide
摘要通過研究碘伏和異噻唑啉酮對球形棕囊藻葉綠素、蛋白質和
超氧物歧
化酶（ sod ）的影響，並使用掃描電子顯微鏡觀察棕囊藻的形態結構的破壞情況，初步探討了這兩種除藻劑單獨作用和復配使用時滅殺球形棕囊藻的機理。
The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition
系統研究了ba 、甲基丙烯酸甲酯（ mmal苯乙烯舊t ）以及它們的共聚體系在
超聲輻照作用下包裹聚合的主要影響因素，結果表明： ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳
化劑的種類及濃度等對
超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。
Therefore, based on the isotopic chorology, petrochemistry, geochemisty and sr, nd, pb isotope, the ph. d dissertation mainly studied some yanshanian mafic dikes, volcanic rocks and alkalic - ultramafic dikes in shandong province
本論文主要從同位素年代學、巖石
化學、地球
化學和sr ? nd ? pb同位素方面對山東地區燕山期基性脈巖、火山巖和堿性
超基性脈巖進行了系統研究。
Alkylation of o - xylene with styrene on the wo3 zro2 solid superacid
2固體
超強酸的烷基
化反應
Isobutane alkylation with butene on s o24 - zro2 superacid catalysts
2固體
超強酸催
化劑上異丁烷與丁烯烷基
化的研究
A novel method for palladium - catalyzed cyclotrimerization of alkynes in supercritical carbon dioxide ( scco2 ) has been developed
摘要研究了以
超臨界二氧
化碳為反應介質溴
化鈀催
化炔烴環三聚反應的新方法。
High purity gallium metal is the basic ingredient for semiconductor compound material, and it is also highly utilized in the manufacture of super conductor material, alloy, alnico etc
高純度金屬鎵是生產
化合物半導體材料的基礎材料，同時它還可以用於生產
超導材料、合金材料、永磁材料等。
The hydrophilicity of the modified nano - tio2 film was also studied. the ruslt shows that the hydrophilic angle has a little increase, but its super hydrophilicity is not alterant, and also shows the hydrophilic angle increasing on open entironment is slowing
結果表明，改性后催
化劑的接觸角有所增加，但催
化劑的
超親水性沒有發生改變，同時催
化劑經等離子體處理后在開放的環境中樣品的接觸角的變
化緩慢一些。
Carry a transport machine toward tape at super turn the mineral of research to manufacture with the application
形鋼雙向帶式輸送機在
超化礦的研製與應用
Pdm is utilized to forecast the non - crystal phenomena in the sintering process and study the effect of non - crystal on the process of sintering
因此採用超化學計量uo _ （ 2 + x ）坯塊是實現低溫燒結的必要條件。
