首次擬合 的英文怎麼說

中文拼音 [shǒucìnǐgě]
首次擬合 英文
first fit
  • 首 : Ⅰ名詞1 （頭） head 2 （首領） leader; head; chief 3 （表示方位） aspect 4 （姓氏） a surname Ⅱ動...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 擬 : 動詞1. （設計; 起草） draw up; draft 2. （打算; 想要） intend; plan 3. （模仿） imitate
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 首次 : for the first time; first
  1. Nov. isolated from a 4 - year old leaf of podocarpus macrophyllus in kunming botanic garden. it produced long conidia [ 33. 8 - 46. 8 x 7. 5 - 10 um ( mean 41 x 8. 6 um ) ] with a branched basal appendage and usually 3 spatulate apical appendages

    共鑒定內生擬盤多毛孢25種，其中有3個新種， 1個國內新紀錄， 4個新組合， 15個種是首次報道為內生擬盤多毛孢。
  2. Many organisms produce enzymes, termed photolyases, that specifically bind to these damage products and split the via a uv - a / blue light - dependent mechanism ( photoreactivation ), thereby reversing the damage. these two photolyase are specific for either cpds ( cpd photolyase ) or 6 - 4 products ( 6 - 4 photolyase ). a gene that expresses a protein with 6 - 4 photolyase activity in vitro, was recently cloned from high organisms ( arabidopsis thaliam, drosophila melanogaster, danio rerio, xenopus laevis and homo sapiens )

    目前已從高等生物擬南芥、鮐類、果蠅、人類和非洲爪蟾蜍屬中克隆到有（ 6 - 4 ）光裂合酶活性的基因，本研究從鹽生杜氏藻dunaliellasalina中克隆到（ 6 - 4 ）光裂合酶的基因，並將該基因在大腸桿菌中得以表達，這是首次在藻類中克隆到（ 6 - 4 ）光裂合酶基因，對光裂合酶的研究具有重要意義。
  3. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  4. The calculation methods of shelters ’ capacity and the discount method of road capacity under the situation of emergency evacuation were given. then, taking emergency evacuation of the beijing 2008 olympic games as an example, we make out the emergency evacuation preplan for olympic games. on the aid of the advanced computer system simulation techniques, using emergency evacuation simulation software to animate the whole process of olympic evacuation for the fist time, and got some key parameters that can provide decision making supports for decision - makers, such as, the whole evacuation time, the average evacuation speed etc. and the simulation results were analyzed

    本文首先分析了我國大城市的交通狀況和突發事件發生狀況，在分析國內外應急疏散研究現狀的基礎上，借鑒國內外應對突發事件應急疏散的經驗和教訓，結合我國大城市突發事件應急疏散的具體特點，提出了大城市突發事件應急疏散研究的總體框架，提出了突發事件應急避難所和應急疏散道路的選擇原則，給出了應急避難所的容量計算方法和疏散道路在應急狀態下的道路通行能力的折算方法;然後以北京2008年奧運會突發事件的應急疏散為例，制定了奧運會突發事件應急疏散預案，藉助先進的計算機系統模擬技術，首次利用應急疏散模擬軟體orems對整個疏散過程進行了模擬，得到了總體疏散時間、平均疏散速度等可以為決策者提供決策支持的關鍵參數，並對模擬結果作了分析。
  5. This paper deduces the equation groups of large span steel truss bridge which installed mr dampers of coupling vibration of vehicles and bridge. and provide the two strategies of semi - active control

    本文從理論上首次推導出設置擬況阻尼器的大跨度鋼析架橋梁車橋禍合振動的系統受控方程並提出了兩種控制策略。
  6. This dissertation applies virtual instruments technique in the field of servo valve cat for the first time and makes a servo valve static and dynamic state characteristic test bedstand based on virtual instruments. relevant theories and methods are also studied

    本文首次將虛擬儀器技術應用在電液伺服閥cat領域，研製出一套基於虛擬儀器的電液伺服閥靜、動態特性測試綜合實驗臺，並對電液伺服閥靜、動態特性測試的有關理論及方法進行了研究和探索。
  7. The following is the main content of the study : first, as known to all, the " bidding situation " that includes the factors must be considered during the bidding procedure in construction industry is always hard to make clear. the paper uses the method of layer contribution analysis to solve the variable selection problem in the bidding procedure for the first time. on the one hand, the difficulty of setting the right function during the modeling procedure is avoided, and on the other hand, the types of function in regressive modeling are extended, which makes the study of variable selection is more general

    全文主要的研究內容和研究成果概括如下：針對建築行業投標報價過程中難以確定「投標形勢」的難題，首次將層次貢獻分析法應用於投標報價過程中的變量選擇問題，一方面避免了在建模過程中如何正確設定函數形式的困難，另一方面也擴充了回歸建模研究中的函數類型，使變量選擇研究更具有一般性，模擬結果表明：使用層次貢獻分析法刪減變量后的投標報價模型更加符合實際的報價需要。
  8. The experimental method includes selecting pure complexes of histidine - containing or cysteine - containing materials, from c - and n - terminal group of these amino acids to link to a group which have color or fluorescence or ultraviolet absorption, elucidating their binding affinity, fluorescence or uv - visible spectrum properties with zinc at physiological concentration and to elucidate their structure in the solid state via infrared spectroscopy. with the help of the concerned the data, the analysis was done to prove whether it can be applied to the zinc detection, in other words, whether it can be used as a new fluorescence probe for zinc detection

    本實驗首次選用在生物體內與zn ~ （ 2 + ）鍵合能力很突出的物質? ?組氨酸和半胱氨酸，採用類似於多肽合成的方法，在其羧基或氨基分別嫁接上一個帶有標記的基團，生成穩定的共價鍵化合物；在此化合物中模擬生理濃度條件加入鋅離子，通過紅外圖譜、紫外圖譜或熒光圖譜的變化分析鋅離子對標記基團是否產生影響，再結合有關數據分析其是否適合檢測鋅離子，即是否可能作為新的鋅離子熒光探針。
  9. One robust compensation adjustment is presented, based on which and h ? mixed sensitivity control method, then a new h - control method is brought forward and is applied in the pressure - adjusting loop of this system. h mixed sensitivity control method is applied in the position - adjusting loop. system simulation and experiments prove that using these two control methods, performance of close - loop system is very good and excellent robustness is obtained too

    在此基礎上，針對h _控制混合靈敏度優化策略的特點，提出了一種新的h _控制方法，並將其應用到卷取機步進控制系統的壓力控制環節，同時首次將h _控制混合靈敏度優化策略應用於卷取機步進控制系統的位置控制環節，系統模擬和物理系統模擬實驗證實這兩種控制方法不僅保證了閉環系統特性，還具有良好的魯棒性。
  10. Computer software system for hydrological data reorganization in irrigated area, which will be in common use, is developed firstly. in this system, the multi - curve ( including simple curve ) fitting equation and its graph can be generated automatically

    首次研究開發出多曲線擬合（包括單曲線）自動生成曲線方程和圖形的較為通用的灌區水文資料整編計算機軟體系統，從而為灌區水文資料整編和管理向現代化方向邁進鋪平了道路。
  11. The dissertation proposes originally the idea of decomposing the time - variant load to solve this problem. first, the time - variant load is decomposed into the time - variant load characteristic and the time - variant load model due to the modeling method. second, the multi - curve approximation method is proposed to identify the load parameters, which to a great extent, reduces the effects on the time - variation of the load model from modeling method

    針對負荷的時變性，論文首次提出了將負荷時變性分解的思想，首先將負荷的時變性分解為負荷特性的時變性和由建模方法引起的負荷模型的時變性，然後提出了多曲線擬合參數辨識方法，很大程度上消除了建模方法引起的負荷模型的時變性。
  12. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  13. First, the paper introduces the basic knowledge of the image processing technique, emphasizes the image processing method that is used in the measur - ement system, such as edge detection operator, curve fitting algorithm, espe - cially hough change in detail, etc. second, the paper introduces the vc + + 6. 0 program language, analyses its peculiarity and advantage, explains the form of the image in the computer and dib visiting functions

    首先，介紹了圖像處理方法的基礎知識，特別重點講述了在本系統中將會應用到的一些圖像處理方法，如邊緣檢測運算元、曲線擬合演算法等等，尤其是對于哈夫變換的方法，進行了詳細闡述。其次，介紹了本系統所應用的編程語言vc + + 6 . 0 ，分析了其特點和優點，並說明了模擬圖像數字化后，在計算機里的存儲格式以及相應的設備無關位圖訪問函數。
  14. According to the demands of neutron scattering instruments to be built at china advanced research reactor ( carr ), the designs of several new instruments, i. e. two cold neutron guides ( cng ), one neutron stress diffractometer and one high resolution neutron powder diffactometer ( hrpd ), have been simulated and optimized using monte - carlo simulation softwares, mcstas and vitess, first. requirement on the size of the cold neutron source ( cns ) by cngs has been also studied. the results of this thesis have provided essential data as a basis of the neutron instruments designs

    本論文結合當前中國先進研究堆（ chinaadvancedresearchreactor ， carr ）中子散射工程譜儀建設的迫切需要，選擇國際上廣泛使用的通用中子散射譜儀模擬軟體mcstas和vitess作為模擬研究工具，首次對若干臺新建譜儀的設計方案進行了全面的模擬和優化研究，包括兩條冷中子導管、中子應力衍射儀和高分辨中子粉末衍射儀，並配合冷源設計研究了導管對冷源尺寸的要求。
  15. According to the demand of the concept design of china spallation neutron source ( csns ), the target station, i. e. the target, the reflector and the moderator have been simulated and optimized using monte carlo simulation software, nmtc / jam and mcnp4a, firstly. the neutron flux escaping from the target and the moderator and the heat deposition in the target, the reflector and the moderator are calculated. these results provided essential data as a basis of the spallation neutron source design

    本論文結合當前中國散裂中子源（ chinaspallationneutronsource ， csns ）工程概念設計的迫切需要，選擇國際上廣泛使用的基於蒙特?卡羅方法，用於模擬粒子輸運過程的程序mcnp4a和nmtc jam作為研究工具，首次對csns靶站進行了全面的模擬與優化，內容包括靶、反射體與慢化器系統的中子通量分佈以及熱量沉積，同時計算了靶的溫度場與應力場分佈。
  16. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  17. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。
  18. ( 1 ) for the first time, compositing the chemical compounds of alkaline - earth metal with the adsorption material, 13x molecular sieve, silica gel, and activated alumina to gain a series of composite adsorbents with good performance that higher adsorption capacity and lower regeneration temperature and suitable for adsorption refrigeration systems that can be driven by low - grade thermal energy

    首次將堿土金屬化合物及其鹽類與傳統吸附材料13x分子篩、硅膠和活性氧化鋁等復合，制取具有較高吸附量和較低再生溫度的適合於以低溫熱能驅動的吸附製冷過程的一系列優良復合吸附劑。分別在自製的吸附製冷、除濕製冷模擬實驗裝置上，測得該系列復合吸附劑與水和乙醇組成的吸附製冷工質對的吸附製冷性能以及除濕製冷性能均優于傳統吸附劑（ 13x ，硅膠和活性炭） 。
  19. Based on the vibration test in yantan hydropower house, in this paper the author adopt les method which belong to three dimensions unsteady turbulent flow numerical analysis to simulate vibration resource characteristics of hydrogenerator set, a harmonic vibration model of powerhouse substructure is put forward to carry out firstly a precise modal analysis and dynamic response analysis for generator floor. the numerical calculation results agree well with the surveyed data in situ

    本文結合巖灘水電站廠房振動的試驗研究，採用非定常湍流數值分析的大渦模擬方法進行混流機組水力振動振源模擬；提出一種水電站廠房下部結構簡諧振動模型，首次進行了發電機層樓板結構的精確模態分析和水力激振荷載下的動力響應分析，各項計算結果與實測數據吻合良好。
  20. 4. achieved the high - speed colliding experiment of landslide for the first time, the paper studies the volume distributing ruler of different velocity segment after collide, fits the experiment data via extreme function, obtains the value range of the shape parameter, thereby gets the distributing function of all part of landslide after collide. on the base of above, the paper studies the accelerating effect of partial rock - mass because of colliding, and acquires the relation between accelerating volume and overall volume, and colliding velocity

    （ 4 ）首次進行了滑坡巖體的高速碰撞模型實驗，研究了碰撞解體后不同速度段巖體體積的分佈規律，並應用峰值extreme函數對實驗結果進行了數據擬合，確定出了各形狀參數的取值范圍，從而得到了滑坡巖體高速碰撞后不同塊體的分佈函數，並在此基礎上研究了滑坡巖體碰撞後部分巖體的加速運西南交通大學博士研究生學位論文第2頁動效應，得出了獲得加速的巖體比例與滑坡總體積及碰撞速度的關系。
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