采樣性質 的英文怎麼說
中文拼音 [cǎiyàngxìngzhí]
采樣性質
英文
sampling property-
The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一，對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手，聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷，提出了熱風循環乾燥的概念，同時，選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡，運用數字pid控制技術，構成了一個較有特色的計算機控制系統。此外，該文還從保證乾燥品質量的角度，採用智能化交流模塊和自製采樣調壓電路的方法，提出了在線檢測產修品的絕緣電阻的方法和手段，以確保企業產品質量不斷提高。According to the geometry of slope measurements for the subjective wavefront optometer, a wavefont reconstruction model using zernike polynomial with normalization factor is put forward. based on householder transformation and gram - schmidt orthogonalization method, two methods for working out unknown zernike coefficients are bring forward. the error propagation parameter for the wavefront reconstruction model is deduced
深入研究了帶標準化因子的zernike多項式的性質;針對主觀式像差儀波前斜率采樣方案，提出了採用帶標準化因子的zernike多項式對眼測試波前進行重建的數學模型;提出了兩種求解方法，即基於householder變換求解法和基於gram - schmidt正交化求解法，用於確定重建模型中的未知模式系數;推導出了該波前重建模型對斜率測量誤差的傳遞系數。The discuss starts from the " positive externalities " of tech - research and development, pointing out that the products of tech - research and development somewhat has the property of " public good ". without < wp = 8 > government ' s interfere, the intensity of tech - research and development by private section ca n ' t meet the need of " pareto optism " because of the " positive externalities ", as a result, the items of venture capital are insufficient and the development of venture captal will be pull back. rational policies of government expediture can internalize the " positive externalities " - transforming them to more revenue or less cost of the tech - research and development private suppliers. be feared of the high risk at the beginning of venture capital, the private section ca n ' t provide enough capital, the " capital gap " should be fetched up by government with equity capital, creditor ' s right capital, subcidy, at the same time, some other means, such as government purchase, credit guarantee, capital insurance, tax expenditure can promte private capital, is also important. in this part, the function of the above means, the establishment and enforcment of them are breafly discussed. because tax policies play a critical role in fiscal policy, r - y chart is used to analyse the relation between tax and venture capital, at last, a conclution is drawn : tax expenditure can promote venture capital
這部分論述從科技研發成果的「外溢性」入手，指出科技研發成果在不同程度上具有「公共品」性質，這種外溢性使得在純市場條件下，私人部門研發活動強度達不到社會資源配置最優的要求，也使風險投資項目來源不足， < wp = 6 >阻礙風險投資的發展。合理的政府財政支出政策可以使「外溢性」內部化。之後，論述了風險投資資本來源與政府財政支出政策的關系，由於風險投資尤其是其初期的高風險性，民間風險資本不足，應由政府以股權及債權投資、補助等財政直接支出方式彌補資本缺口，運用政府采購、財政擔保、保險、貼息、稅收優惠等間接支出方式，鼓勵民間資本進入風險投資領域也同樣重要。In this paper, a new control strategy based on the adaptive deadbeat voltage space vector is presented. this control scheme has a lower sample frequency and a smaller difference between switch frequency and sample frequency. it has many advantages, such as producing zero vectors organically, tracing exactly, non - shaking, etc. and its dynamic response is better
對于電能質量調節器來講， pwm跟隨指令參考信號的控制性能在很大程度上影響著裝置的補償效果，本文選擇無差拍電壓空間矢量控制為系統控制策略，這種控制方法具有采樣頻率低，開關頻率與采樣頻率的差距小，能有機地產主零矢量、跟蹤精確以及無抖振等優點，動態響應快。The lifting technique is then used for h _ synthesis problems such as h _ mixed sensitivity problem, robust stability problem and the disturbance attenuationproblem. it is pointed out that for the closed - loop sampled - data control system, thesystem norm is not preserved by the lifting as expected, i. e., there is a differencebetween the two norms
論文將提升技術應用於采樣控制系統的各種h _設計問題，包括h _靈敏度問題、魯棒穩定性問題、擾動抑制問題，指出對閉環采樣控制系統，提升法並不像設想的那樣具有保范性質，即系統在提升前後的范數是不等價的。The frequency response of sampled - data control systems is studied in detail. the presently accepted definition of the frequency response and the relatedcomputation with time - domain and frequency - domain lifting techniques are analyzedand discussed, and it is pointed out that the frequency response thus obtained isindeed the frequency response of the lifted system. because the frequency responseof the system can not be preserved by lifting, the frequency response of the liftedsystem has nothing to do with the real frequency response of the sampled - datacontrol system
對目前公認的頻率響應的定義和計算方法? ?時間域提升法和頻域提升法進行了分析，指出這些演算法所給出的頻率響應，實質上是提升系統的頻率響應，由於提升並不能保證頻率特性不變，所以提升系統的頻率響應也就不是采樣控制系統的真正的頻率響應。The soil attribute data are built based on the second soil general investigation and samples got outside and analyzed inside. the assessment system of nanjing soil quality is built by taking advantage of principal component analysis and multiple linear regression equation
在第二次土壤普查資料和野外采樣分析基礎上建立土壤屬性數據庫，用主成分分析法和多元回歸法對南京不同類型土壤進行生產潛力評價，建立南京土壤質量評價體系。The main concept of this work includes the following aspects : ( 1 ) based on the soft - docking algorithm which is improved upon wodak and janin ' s protein - protein rigid docking algorithm, we took seventeen protein - protein complexes for examples to study the method how to select the near - native structure from docking conformations
本論文的主要研究內容如下： 1採用本組在wodak和janin的剛性對接演算法基礎上改進的半柔性對接演算法，以17種蛋白質-蛋白質復合物體系為例，我們研究了如何正確有效地從對接采樣中挑選出近天然構象的方法。The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。We use the correlation of data between the neighbor scan lines to get the overlay pixel number, and then remove the overlay data. the bilinear interpolation method is applied to assign the pixels with the overlap data. the result shows that the data overlay phenomenon is removed, image quality is improved, and pixel value has been enhanced
此外，對于modis遙感影像中存在的邊緣區域數據重疊問題，則利用數據間的相關性計算條帶間各列像元的重疊數量，然後刪除重復部分，並經灰度重采樣后得到結果數據，實驗表明影像數據的重疊現象明顯消除，從而改善了影像的質量，增強了數據的使用價值。Limited or restrictive tendering procedures are, in line with the wto gpa provisions, only permissible under specified exceptional circumstances. where the nature of the contract such as a contract that is time critical or one that requires particularly high levels of skills and proven reliability dictates that tenders have to be invited from qualified suppliers contractors, selective tendering or prequalified tendering may be used
和世貿采購協定的規定一樣，有限度或局限性招標程序只有在指定的特殊情況下，方可採用。若限於合約的性質，例如合約必須依時完成，或合約要求特別高超的技術和經驗證的可靠性，必須向合資格的供應商承包商招標，便可採用選擇性招標或資格預審招標程序。Limited or restrictive tendering procedures are, in line with the wto gpa provisions, only permissible under specified exceptional circumstances. where the nature of the contract ( such as a contract that is time critical or one that requires particularly high levels of skills and proven reliability ) dictates that tenders have to be invited from qualified supplierscontractors, selective tendering or prequalified tendering may be used
和世貿采購協定的規定一樣，有限度或局限性招標程序只有在指定的特殊情況下，方可採用。若限於合約的性質，例如合約必須依時完成，或合約要求特別高超的技術和經驗證的可靠性，必須向合資格的供應商承包商招標，便可採用選擇性招標或資格預審招標程序。In this chapter, how to accumulate sampling time in network control system is analyzed at first, because every network control system will face this problem
選取合適的控制器采樣周期是網路實時控制系統設計必須面臨的問題，文中根據網路管理系統特有的性質，提供了采樣周期選擇原則。The soil organo - mineral complexes, formed by intimate association of organic matters or humic substances and mineral, is one of the fundamental features that distinguishes soils from their geological parent materials, and effects on the nature of soil aggregate, and the amounts and characters of soil particle aggregation is closely related to soil fertility. by way of collecting soil samples outdoors and analysis indoors and using the dry land soils developed from purple soils as research materials, this paper investigated status of organo - mineral complexion, characters of aggregation and soil fertility for discussing the relationship among them under different land treatments, and the factors that influencing the amounts and characters of organo - mineral complexion and soil aggregation and restricting status of soil fertility, the main results were as follows : there were remarkable differences of status and activity of fe oxide and aluminum oxide in dry land soils developed from different parent soils and under different utilizations
土壤中有機物質和礦物質的結合?土壤有機無機復合體是土壤區別其母質的基本特徵之一，它對土壤團聚體的性質有很大的影響，而團聚體的數量和性狀有跟土壤肥力密切相關，本文以不同母巖發育的旱地紫色土作為研究材料，通過野外采樣和室內分析，研究了旱地紫色土的有機無機復合狀況、團聚體特徵和肥力水平，探討了在不同土地利用方式下它們之間的關系，以及影響有機無機復合、土壤中團聚體的數量、性質以及制約土壤養分狀況的因素，主要結果如下：不同類型的紫色土鐵鋁氧化物形態和活性具有很大差別。I a study on the comparison between quantitative and semi - quantitative sampling methods for stream macro - invertebrate assemblages quantitative sampling method for stream macro - invertebrates is well used in stream ecological study, and semi - quantitative method is widely used in water quality bio - assessment. the results from comparisons of the number of species, individuals and values of metrics between the two methods were showed as follows : 1
對定量采樣法和半定量采樣法在個體數、種類數和種類相似性及生物指數等方面關系的研究，為探討半定量采樣法的科學性和實用性，進一步完善水質快速生物評價采樣法（半定量采樣法）提供科學數據。In this dissertation, rainfall infiltration, runoff, and soil water redistribution on a hillslope were studied by simulated rainfall experiments, and soil water cycling was investigated by site observation and soil sampling methods. moreover, the reasons for the desiccation of deep soil layer were analyzed, and its assessment indexes and standards were presented. the main results are as follows : ( 1 ) rainfall infiltration into a planar hillslope with a homogeneous isotropic soil could be simply regarded as one - dimensional infiltration process, if soil erosion was prevented
針對當前該區植被恢復重建中存在的科學問題，以植被建設的關鍵性限制因素?土壤水分為出發點，通過室內外模擬降雨試驗，研究了坡地降雨入滲、產流及土壤水分再分佈規律，同時採用定位觀測和采樣分析相結合的方法，分析了坡地土壤水分的循環與轉化特徵，並初步建立了深層土壤乾燥化程度的評價標準，取得的主要結論如下： （ 1 ）在防止土壤侵蝕的條件下，均質坡地的降雨入滲過程可以簡化為一維。As a new type of time - frequency analysis media, it excels in its good localization character both in time domain and in frequency domain comparing with traditional fourier analysis. it changes its sampling steps to smaller and smaller so as to analyze high frequency part, focusing on any part of the object been analyzed. to some extent, wavelet analysis is called " math microscope "
作為一種新型的時頻分析方法，它優于傳統fourier變換的優點是在時域和頻域同時具有良好的局部化性質，可對高頻成分採用逐步精細的時域采樣步長，聚焦到對象的任意細節，因此被譽為「數學顯微鏡」 。Through rainfall simulating under laboratory, and making slice of sampling, the project researched in the soil crust development, and studied the dynamic rule of erosion factors which were raining and soil erosion factors during soil crust development. in the same time, the research was to find the critical condition of all factors in the process of soil crusting, and to filter the critical factor that could affect soil surface crust
本文採用人工模擬降雨方法，通過采樣製作土壤切片，觀察分析表土結皮在不同條件下發育的微形態特徵，研究降雨、土壤等侵蝕產沙因子在表土結皮發育過程中的動態響應規律，界定表土結皮發育過程中各因子的臨界條件，篩選有關土壤顆粒組成、結構特徵等物理化學性質對表土結皮形成影響的關鍵因子。Abstract : according to the variation in content of characteristic radioactive nuclide and the close relationship between high - grade associated elements in ore - forming components and gold, the ground gamma - ray spectrometry and x - ray fluorescence slectrometry can be used to reveal the existence of gold mineralization rapidly in field and make semi - quantitative evaluation of gold grade. this is of great significance in guiding field geological sample collection and mountain land engineering
文摘:通過測定特徵放射性核素的含量變化以及利用成礦組分中一些高品位共生元素與金密切的相關關系，可利用地面伽馬能譜與x熒光測量在現場快速揭示金礦化的存在，同時對金的品位進行準定量評價，以及指導野外地質采樣和山地工程。Comprehensive well and geological constrained seismic inversion - comprehensive constrained inversion ( cci ), is based on nonlinear inversion techniques. it makes full use of detailed vertical resolution of well data and horizontal dense sampling of seismic data. according to geological theory, it inverts lithological profile in multi - wells and complex geological condition. at present, there are no perfect mathematical methods to solve nonlinear equations
地震資料與測井資料的綜合約束反演是在非線性反演的基礎上，充分利用測井資料詳細的垂直分辨能力和地震資料地面上采樣點密集均勻分佈的特點，把這兩種資料結合起來，取長補短，以地質理論為依據，針對多井及構造復雜的地質條件，反演出井以外的巖性剖面。分享友人