本期變數 的英文怎麼說

中文拼音 [běnqībiànshǔ]
本期變數 英文
current variable
  • 本 : i 名詞1 （草木的莖或根）stem or root of plants 2 （事物的根源）foundation; origin; basis 3 （本錢...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. The required levels of construction cost estimates vary at different stages of project development ， ranging from ball park figures in the early stage to fairly reliable figures for budget control prior to construction

    ?建築成本估算要求的精確程度在項目發展的不同階段發生著變化，從早期的相近數字到施工前預算控制時相當準確的是數字。
  2. Based on the simulation model theory of temperature and stress fields presented in this article, a large simulating program for high rccd has been developed, which can numerically simulate all kinds of temperature control measures, including water pipe cooling, heat insulating in winter, reducing place temperature of concrete, spraying water brume, and long interval over - watering surfaces overflowing in flood season.

    基於本文提出的溫度場和徐變應力場模擬模型理論，編制了高碾壓混凝土壩的三維有限元模擬計算程序，在程序中考慮了各種溫控措施的數值模擬，包括：水管冷卻、冬季保溫、降低混凝土的澆築溫度、夏季混凝土表面噴水霧、施工汛期壩頂面過水等。
  3. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  4. The point analyses the composition and efficancy of the structure of corporate governance with the modern administration theory. lt systematically sets forth and compares the features and development of the structure of the corporate governance in chinese and western. by analyzing the present situation of our listing companies, it points out : " the internal control " can be considered the inevitable phenomenon, emerged in the period from the socialism planned economy to the market economy in china ' s state - owned enterprises. by the means of gathering a vast amount of data and analying cases and charts, it gives the conclutions : because the enterprise inform is progressed " step by step ", the internal controlling in our country has assumed its own features : the enterprise is in the concussion between the " super - powerful controp ' of external and the " super - weakly control " in internal. those popular phenomenon have been looked as the principle manifestation of " the internal control " which taking the national stock as the ma in part and holding the post of chainman of the board and the chief manager in company to the same man

    本文利用現代管理理論和現代企業理論來剖析公司治理結構的組成和效率體現，對中西方公司治理結構的特徵和歷史發展作了較系統的闡述和比較，並且運用大量的數據對我國上市公司治理結構進行了實證分析，指出： 「內部人控制」是在我國社會主義經濟向市場經濟轉軌時期，國有企業公司治理結構中出現的一種必然現象。本文在闡述公司治理結構特徵和功效的基礎上，通過大量數據的收集、案例分析和圖表處理來分析我國企業治理結構的歷史變遷並揭示出：由於我國企業改革是「漸進式」的， 「內部人控制」表現出其自身的特點：企業處于外部「超強控制」和「超弱控制」的兩極震蕩中。作為最具我國現代企業代表特徵的上市公司，因為以國家股為持股主體，董事長和總經理兩職兼任的現象甚為普遍而成為目前企業事實上的「內部人控制」的主要表現形式。
  5. Also to get some new conclusion of glacial lakes burst floods, in possibility study of glacial lake burst, and in qualitified study of the safety of the glacial lakes. the first character of this paper introduce the background of this paper, set the goal, content and methodlogy of the study work in this paper. the second chapter of this paper focuses on the meterological character, runoff composition character, why not correspondency of ratio of rainfall and runoff in same period to annual value for nianchu river, lasha river, niyang river and the middle reach of yalu - zangbu river

    本文第一章介紹了課題的研究背景，提出了研究目標、內容和方法；第二章重點分析了年楚河、拉薩河、尼洋河和雅魯藏布江幹流中游段的氣候特徵，徑流組成特性，同期降水、徑流占年總量比例的不對應特性和原因，徑流年內年際變化規律及徑流深分佈特性，分析了天然洪水的特點和洪水參數；第三章介紹了冰川終磧湖的特點，結合已經發生潰決的冰川終磧湖的有關調查資料和考察資料，分析提出了危險冰湖判別指標和發生潰決的氣候條件、周期性特徵，提出了冰湖潰決洪水的計算途徑。
  6. 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。
  7. And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates

    通過對測試數據的分析與綜合研究，並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比，得出本區花崗巖類巖石具有以下特徵：屬磁鐵礦-型或同熔型花崗巖，其巖漿物質具殼幔混源特徵：主要由熔融態巖漿經結晶分異作用，通過多期變速上侵而形成；其分異演化程度較低；寄主巖基和包體具有同源性；巖石的形成溫度范圍約為500 - 700 ，壓力大約為2 . 50gpa - 4 . 35gpa ，氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ；該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期，為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。
  8. After comparing in detail the current popular 24 idss or ids prototypes from the aspects of the granularity, methods, and tune of detection, data - collection, and data - processing, we find out the problems in the most of the current idss that they are generally platform dependent, inefficient in detection methods, lack intelligent in data analysis, inextensible as the network configurations changed or upgraded, and inadaptive when the new attack methods emerge

    本文首先從數據來源、數據處理周期、數據收集和分析、入侵檢測方法、系統運行平臺等七個方面對當前較具有影響力的24種入侵檢測系統或原型進行了詳細的比較，分析了現有入侵檢測系統在系統平臺的異構性、系統檢測方法的效率、入侵數據分析的智能性、面臨新的入侵方法時的適應性和網路配置發生變化時的可擴展性等方面的不足和問題。
  9. The other research purpose is to discover characteristic information and reliable methods of reflecting spinal cord damage. due to typical damage indicators, amplitude and latent period, have bugs such as limited information and weak stabilities, this project recommends applying time - frequency analysis to monitoring spinal cord function. through analysing and comparing typical signal with stft and cwt, it is proved indicators under time - frequency distribution can be better in reflecting signal changes, espcially the wavelet transformation

    針對目前ep監測中判定脊髓損傷的指標（波幅和潛伏期）存在信息量相對較小、穩定性較差的缺陷，本課題提出利用時頻分析技術對術中脊髓功能監護進行研究，通過短時傅立葉變換和小波變換分析和比較典型信號的時頻分佈，證明時頻特徵參數能更有效的提取信號的變化信息。
  10. This article described the deformation features of taojiaba landslide and analyzed the inner factors, geologic setting, topography, morphology, stratum, lithology and texture, and the external influence factors, precipitation, flood, human activity, neotectonic activity and earthquake, and the transform features of landslide in the near future, and evaluate stability of landslide through the section coefficient method calculation on basis for landslide mechanism analysis and control work

    摘要陶家壩滑坡基本特徵顯示，滑坡變形的主要影響因素有：地質環境因素（地形地貌、地層巖性、物質結構） 、外界影響因素（降水因素、洪水因素、人為因素、新構造及地震） ，以及滑坡近期變形特徵，通過剖面遞推系數法計算，對滑坡的穩定性進行了評價，為滑坡機制分析和優化整治措施提供依據。
  11. Then the paper investigated the regularity of different oil indices using time series statistical analysis method, which suggested that there are some regular components in it, including long - term secular trend, seasonal component and long - term cyclical component. the irregular component also plays an important part in it, mainly including the policy of opec, war, all kinds of international convention for the prevention of pollution from tankers and so on. and then a study of simulation and forecasting performance of arima time series model was conducted to crude oil indices, evidence shows that arima model performs better, especially for short - term forecasting

    在此基礎上，本文以時間序列分析作為基礎研究手段，以德國海運費率指數公布的1980年1月至1999年12月的四類油運費率指數為研究對象，分析了四類油運費率指數的長期變化趨勢、季節變化規律、長期周期循環變化規律和不規則變化規律，並應用arima時間序列模型對160000dwt以上的原油運費率指數進行了短期預測，取得了較好的預測效果。
  12. However, via intensive numerical computation, the author finds that actually some characteristic of this confidence intervals, for example, confidence coefficient, expectation width and coverage efficiency fluctuate intensely when the sample size varies given the parameter, or when the parameter varies given the sample size

    但是我們通過精細的數值計算發現，由於總體分佈的離散性，這些置信區間的特性（置信系數、期望長度、覆蓋效率）實際表現為當參數固定隨著觀測次數（樣本值）變化或當觀測次數固定隨著參數變化而發生強烈震動。
  13. The calculating results show : ( 1 ) most of samples are located in 5 kpc - 10 kpc from galactic center. all of the sample clusters present a spherical symmetrical distribution around the galactic center, and their space velocities are presented a ellipsoidal distribution ; ( 2 ) according to the metallicity and basic characters, the sample clusters are separated into hb subgroup and mp subgroup. the number of samples are changed with metallicity [ fe / h ], and there is a peak at [ fe / h ] = - 1. 6 ; ( 3 ) the orbits of sample clusters show mostly limited, periodic characteristics, but the orbits are not closed completely, their maximal galactocentric distance is less than 40 kpc

    計算結果表明： （ 1 ）大部分樣本星團都位於銀心距5kpc 10kpc的范圍內，相對于銀心呈球對稱分佈，它們的速度也呈橢球分佈； （ 2 ） 29個樣本星團按其金屬度大小和基本性質分類，可分屬hb和mp兩個球狀星團次系，且樣本星團數隨金屬度[ fe h ]而變化，在[ fe h ] = - 1 . 6處出現一個峰值； （ 3 ）所有樣本星團的軌道運動都呈周期性，大都在一個有界而不封閉的周期軌道上運動，其最大銀心距都在40kpc以內。
  14. The sample thickness declining, provided the number of nuclei per unit volume fix, the value of the avrami exponent n falls, but the values of vc and s almost do n ' t change. when the value of thickness reduce to the average diameter of entities, the turning point turn up after the course of crystallization has begun soon

    當單位體積內晶核數目不變時，樣品厚度h減小， n減小； v _ c和_ s值基本不變：當h降到小於等於體系內球晶的平均直徑時，在結晶最初期，會出現一個初期轉折點。
  15. The aim of this paper is to search for a new type periodic slow - wave structure with filling periodically magnetized plasma, and following works are done : 1. firstly, the investigation of wave propagation characteristic in magnetized plasma with periodically changing density is done. by numerical calculation, analyze the effect of additional magnetic field and plasma density changing on the propagation characteristic

    本文的目的是探索一種周期磁化等離子體慢波結構，並做了如下的工作: 1 .對電磁波在密度周期變化磁化等離子體中的傳輸特性進行了研究，通過數值計算分析了不同外加磁場以及不同等離子體密度情況下波的傳播特性。
  16. A relative index is presented to measure the comprehensive level of resources exploitation. the index is fit for comparison between several order quantities allocation plans in different time to evaluate which plan exploits the resources of suppliers more effectively

    資源利用指數是個相對值，即使是出現物價綜合水平提高，供應商變化，供應商整體服務水平提高等因素的情況下，也能將本期的資源利用指數同以前期進行比較，反映出采購部門的采購量分配方案是否更充分利用了當時的供應商資源。
  17. Unit - root - testing results show that chinese quarter data of the tool variables of monetary policy and multi - variables of macro - economy are non - stationary and contain a unit root in our analytical term of sample

    單位根檢驗結果顯示，在我們分析的樣本期內，我國貨幣政策工具變量與宏觀經濟變量季度數據均是含有一個單位根的非平穩序列。
  18. This paper contains three parts : cost estimating, profit decision and unbalanced bidding strategy. the cost estimaging part introduces the product assembly model and describes how to convert it to assembly logic net. then we use the msps algorithm to weigh the product complexity and get the analogy coefficient to estimate the cost. then we analyze the traits of bidding activity, erecting a profit decision model based on fuzzy set theory. this model can choose the best profit through quantifying quote objects, profit influence factor and candidate profits. then we introduce unbalanced bidding strategy on basis of the traits of the discrete manufacturing enterprise. we take amount, date, cost subjects and technology into account. we change the price of all parts of the product, in order to get more benefit negative influence. this paper introduces the design and implementation of the system

    接下來建立了基於模糊集的利潤率決策模型，以模糊集作為數學依據，量化企業投標目標、利潤率影響因素、投標利潤率三者之間的關系，為投標產品確定最適合的總利潤率，以最大化保證企業投標目標的實現。然後根據離散製造企業的特點，提出以bom為中心不平衡報價策略，從零件的需求數量、需求日期、成本科目劃分以及零件本身的技術難度進行考慮，通過在保持投標產品的投標總價基本不變的前提下，有意識有策略地調整產品各組成部分的報價，以達到既不提高總價，也不影響中標，又能在結算時獲得更理想的經濟效益的目標。
  19. If you expected a constant cost of materials for the duration of a task but that cost has changed, you can update the actual cost of materials needed

    如果您原本預期在任務工期內材料成本為常數，然而成本發生了變化，則可以更新實際材料成本。
  20. The landscape pattern of change on the fraction of green vegetation during this period was studied using a landscape pattern analysis program fragstats by analyzing path size, number of patches, shape metrics and landscape heterogeneity metrics to show the changing feature of landscape pattern. all of these results of indices analysis emphasize that the eco - environmental system in beijing mountain area in a whole is stable and the fragmentation and heterogeneity level in the last five years is decreasing

    本文在fcdmappingmodel原理和方法的基礎上，利用1994年和1999年的兩期landsattm數據，對北京北部山區昌平區、懷柔縣、密雲縣、平谷縣和西部山區門頭溝區的植被覆蓋率進行了計算，並利用fragstats軟體對其景觀變化過程從斑塊大小、數量、形狀和景觀異質性等角度進行了時空格局變化的剖析。
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