選擇性自變量 的英文怎麼說

中文拼音 [xuǎnzháixìngbiànliáng]
選擇性自變量 英文
optional priority interrupts
  • : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
  • : 擇動詞(挑選) select; pick; choose
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. It mainly researches the rationality of regression model and the independent variables selection

    主要研究模型假設的合理
  2. 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、壓器等電氣設備的修理、製造中的重要環節之一,對乾燥過程的質要求有一定的特殊。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,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的角度,採用智能化交流模塊和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,以確保企業產品質不斷提高。
  3. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的動識別廣泛應用於民用通信與軍用通信,尤其是對于非合作通信、通信對抗,比如:信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上,借鑒了已有的特徵提取方法,對相關調制類型特徵提取方法進行了優化,使用了一些有效的方法,如基於換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析,本論文了較適合的基於決策理論的識別演算法。
  4. Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -

    快速成型技術改了傳統的產品開發模式,可以為設計者提供產品樣件,縮短設計周期,加快新產品的開發進度,為決策者提供直觀;快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣,包括樹脂模、層壓模、熔模和消失模等,還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模,甚至直接製造小批鑄件,介紹了熔積成型技術在石膏型精密鑄造上的應用和基於激光燒結技術的快速鑄造技術,快速成型技術與鑄造工藝的有機結合,開創了快速製造金屬零件的新階段,對用高新技術改造傳統的鑄造工業,使其面貌煥然一新,增強鑄造行業的競爭能力;快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑,討論了利用快速成型技術製造模具的一般工藝方法,探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題,以及快速成型技術與精密鑄造技術相結合的模具製造工藝,基於快速成型製造的快速模具技術,集成了快速成型製造高新技術和傳統技術,發揮各優勢,已成為產品快速更新換代和新產品開發及中、小批生產的有效手段之一。
  5. The power of a prayer comes from its insight into human nature. “ we ask god to grant our serenity to things we can ' t change ”, because so many of us raged against hand of life has done to us ; “ and the courage to change the thing we can ”, because so many of us are cowardly and afraid to stand up for what is right ; “ and the wisdom to know the difference ”, because so many of us give in to despair when face an impossible choice

    禱文的力於它對人類本的深刻洞察力: 「我們祈禱上帝賜予我們安詳的力去接受我們不能改的東西」 ,因為很多人面對與我們作對的命運之手惟有憤怒; 「改我們能改的東西的勇氣」 ,因為很多人會懦弱,沒有勇氣為正義拍案而起; 「還有辨別事實的睿智」 ,因為很多人面對一個不可能的時,會對絕望妥協。
  6. These supply us benefit for reference. construction enterprise, on one hand, can select proper strategy on the basis of their own resource and condition, as external environment varies in order to seize opportunity. on the other hand, as reforms on economic systems progresses, and globalization and integration develop, move and move mne ' s come into china, and they confront much more competitors, which cannot be reduced by the nation ' s mandatory plan

    對于剛剛從計劃經濟體制下脫胎走向市場經濟的大型國有施工企業,一方面,在擺脫了經濟體制的羈絆后,企業可以根據外部環境的化和身的資源和條件適當的戰略,從而抓住機遇促進身發展,但另一方面,隨著經濟體制改革的不斷深入和經濟全球化和一體化過程的加快,尤其是伴隨跨國公司大進入中國所帶來的國際競爭的加劇,企業又面臨越來越多的威脅,逐漸失去了政府各種保護的國有大型施工企業再不能靠完成國家指令計劃就高枕無憂。
  7. With the acceleration of extinction of species, biodiversity conservation is extensively concerned. the extinction of species is concerned with the degree of threat by biotic and abiotic factors. so, taking action to preserve plant species is very necessary and paramount before their extinction. one of the most effective biological techniques to conserve the biodiversity is the establishment of genebanks, i. e. ex situ conservation. the elucidation of various factors that regulate seed viability and vigor in storage is essential. an ideal condition to prolong the longevity is mainly depended on seed water content, temperature, humidity and types of containers used during storage. the optimum stage of seed maturity, harvesting techniques and processing, in addition to physiological features such as degree of dormancy, also play key roles in seed storage. certainly, desiccated seeds deteriorate with time even under extremely good genebanking conditions. according to seed storage behavior, it is necessary to consider three principal factors : storage environment, storage duration and plant species which will affect seed survival under good genebanking conditions. the present review is an attempt to discuss the importance of the aforementioned aspects of seeds in detail in order to conserve plant germplasms ( especially wild rare and endangered plants ) for ex situ conservation through seed - gene bank

    一個物種的滅絕是與其受生物因子和非生物因子的威脅程度相關的.隨著物種的加速絕滅,保護生物多樣受到廣泛地關注.保護生物多樣的最有效的生物技術之一是建立種子基因庫,進行遷地保護.種子庫理想的貯藏條件主要取決于種子含水、貯藏環境(如溫度和濕度)和貯存種子的容器.進行種子貯藏,了解種子生命力和活力的影響因子的作用機理是十分重要和必要的.除了種子身的生理特徵外,種子的貯藏壽命與種子成熟度、收獲技術、加工處理方法也是息息相關的.即使在最適的庫存條件下,種子也會隨時間發生劣.因此,必須根據種子特定的貯藏行為,加以考慮影響種子存活的3個主要方面(貯藏環境、貯藏期和植物種類)而有效的貯藏方案.本文試圖討論種子貯藏生理的幾個重要方面及其需解決的技術問題,以便更好地通過種子基因庫,長期有效地保存植物種質資源
  8. The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is

    比較全面地查閱了關于結構控制理論的文獻,總結了滑模結構控制的發展歷史和特點,詳細介紹了結構控制的基本概念、基本定義、基本質、基本原理以及設計方法;系統分析了結構控制系統抖振產生的機理,並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法;針對傳統抑制和消除抖振方法的不足,改進了傳統方法,得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可邊界層法和附加連續項法;針對不確定系統,在結構控制策略中引入模糊邏輯和適應理論來消除滑動平面上的抖振,提出了一種適應模糊積分結構控制方案( afivsc ) ,利用模糊邏輯來柔化控制中非線不連續部分,採用適應理論,根據系統不確定大小在線調整模糊輸出的隸屬函數,另外,鑒于模糊控制本質上是有靜差的,所以本文了帶積分項的切換函數,由於積分項的存在使系統較正為無靜差系統。
  9. Directed by the adsorption theories, sepiolite was selected as micropore inorganic material and dodecanol was selected as pcm, and carried out the optimization of experimental parameters, such as selection of sepiolite minerals, sepiolite modification, absorption temperature, pcms solution concentration, stirring time, drying mode, dehydration of sepiolite. by the optimization, the best conditions on tsous preparation were achieved. measurement method of pcms exudation was established to estimate the exudation of pcm in tsous, the temperature self - operating effects and energy saving effects of tsous was also examined

    在以上微孔吸附理論研究基礎上,用海泡石作為微孔無機材料、十二醇作為相工質材料,對調溫單元的制備工藝參數進行了優化研究,包括:海泡石原料的、海泡石改的影響、吸附溫度的、 pcm有機溶液初始濃度的、攪拌時間的確定、烘乾方式的、海泡石含水的確定,最終得到調溫單元的最佳制備工藝。
  10. By using phase shifting control between right bridge leg and left bridge leg, the output cy cloconverter commutating while the bi - polarity three - state high frequency ac volage from the input cycloconveter is zero, . and commutation overlap of the output cycloconverter and polarity selection of the input voltage, the leakage inductance energy and the output filtering inductance current are naturally commutated, and zvs switching of the output cycloconverter are realized, the surge voltage and surge current of the output cycloconverters are overcome

    通過輸入周波換器右橋臂相對左橋臂的移相,讓輸出周波換器功率開關在輸入周波換器輸出的高頻交流電壓為零期間進行換流,並藉助輸出周波換器換流重疊和輸入電壓極,從而實現了壓器漏感能和輸出濾波電感電流的然換流、輸出周波換器的zvs開關,解決了輸出周波換器固有的電壓過沖和環流問題。
  11. In the first part, we established a linear regression model, which has the three accounting hypothesis, security market supervision policy, industry factors, etc as its independent variables, chooses the 631 listed companies in the shanghai a share market in 2001, as its target. spss is applied to the descriptive analysis and regression analysis. finally, we give the explanation with the combination of internal political and economic environment in the second part, we choose the " st " company as the sample and make tendency and comparison analysis of the sample companies while implementing the policies on impairment of assents within 5 years

    在實證研究部分,我們取橫向和縱向兩個截面對上市公司執行資產減值政策的影響因素進行分析,在橫向分析部分,首先建立了回歸模型,該模型將契約論的三大會計假設、證券市場監管政策、行業因素等作為取《企業會計制度》開始執行的2001年度滬市a股符合樣本條件的631家上市公司作為研究對象,然後運用spss進行描述分析和回歸分析,最後結合我國特殊的政治和經濟環境作出解釋。
  12. Measures for further developing concrete mix design were presented based on above work. for example, adopts pfca as an index in designing durability of concrete, uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete, uses bar - slump test to determine stability and fluidity of fresh concrete, and consequently, the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer

    如採用粗集料破碎率作為耐久設計的一個指標;採用砂漿坍落擴展度試驗水泥和減水劑,確定砂漿中減水劑的飽和摻,並通過上述數學模計算混凝土中減水劑的飽和摻,以此為參照確定最佳摻;採用障礙坍落度試驗確混凝土的穩定和流動,結合由漏斗式砂漿流儀測定的砂漿流能確定合理的砂漿填充系數,從而實現對高流動高穩定要求的混凝土(如泵送和免振密實等)的工作設計。
  13. This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.

    採用磁場定向脈寬調制演算法,提高了電源利用率,降低了逆電壓的諧波,改善了電機的運行特,降低了對電網的污染;在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢脈寬調制控制系統的數學模型,在模擬的基礎上,對傳統pid調節器進行了改進,提出轉速調節器和電流調節器採用分段pid結構,根據給定轉速所處的區間,相應pid調節器的參數,拓寬了調速范圍,提高了控制精度。
  14. As for the research method, after considering the existing approaches of foreign policy analysis, i chose the approach of comparative analysis. bush ' s foreign policy on iraq and his policy on the second nuclear crisis of korea peninsula are picked out to be compared. with the c omparison of several related variables, the research question will be answered and the relations between neoconservatism and bush ' s foreign policy will be concluded : instead of saying bush ' s foreign policy is manipulated by the neoconservatives, we had better say bush administration understands what kind of tone should be taken under certain circumstance

    在探討了現有種種外交政策分析方法的適用后,本文了比較分析法,通過比較決定布希政府對伊政策和處理第二次朝核危機政策的重要,回答了研究問題,點明了布希政府採用新保守主義型外交所要具備的種種條件,並就新保守主義與布希政府外交得出結論:與其說布希「被新保守主義者劫持了」 ,還不如說布希政府能夠在合適的時機,利用新保守主義者的政策主張鮮明且具有煽動的特點,為更好的實現己的政策目的服務。
  15. The origin of the fund - management stimulating problem is that the standard of rational agent ’ s activities is utility maximum. but, in the reality, the fund investor and the fund administrator are a kind of consignation and there is information asymmetry. the fund investor ( principle ) wants to make the fund administrator ( agent ) act according to the benefits of the former, but the investor ca n ' t observe the investment activity of the administrator directly and in time. he can only observe other variables which are decided by the administrator ’ s activity and other outside uncertain factors

    基金激勵問題產生的根源在於理人的行動都以身效用或利益最大化為標準,但在現實中,基金投資者與基金管理者是一種委託代理關系且兩者之間存在著信息不對稱,基金投資者(委託人)想使基金管理人(代理人)按照前者的利益行動,但投資者不能直接及時地觀察管理人的投資行動,他能觀察到的只是另一些指標,這些由管理人的行動和其他外生隨機因素共同決定。
  16. The operation characteristic of the new relay is analyzed in theory and verified by the simulation tests. the new relay operates with clear selectivity and high operation speed and can satisfy the demand of the protection for the ehv transmission line. the performance of the fault component impedance relay has been improved and the misoperaion of the healthy phase under cross - country fault and close - in fault have been avoided

    理論分析及模擬計算表明,基於適應補償的突距離繼電器有很好的和速動,完全能夠滿足高壓線路保護的需要,顯著提高了突距離的能,解決了其在大電源出口單相故障以及正反向復故障可能會誤跳三相的缺點。
  17. After studying the shicha algorithm of parallax theory in shoushi calendar and huihui calendar, this paper points out that shicha algorithm in huihui calendar is better than that of shoushi calendar about the completeness of variables, the choice of the sign of shicha and the procession of shicha algorithm, thus concluding that it can help us to evaluate objectively the solar eclipse theory of ancint china and arabia

    對《授時歷》和《回回歷法》中的時差演算法進行比較研究表明, 《回回歷法》中的時差演算法在的完備、符號的以及精度等方面,均明顯優于《授時歷》 ,該結論對評價中國和阿拉伯傳統日食演算法優劣有一定參考意義。
  18. These change includes : founding the measuring system of mental bargain so that we can know the mental bargain of staff in time ; selecting the model of salary so that we can meet staff s thirst of interest ; planning the work career of staff so that we can meet their thirst of realizing the value ; founding the double fair system so that we can meet staff s thirst of fairness ; managing the study of themselves so that staff can promote their capacity ; exploiting staff s characters so that they have correct mental bargain only manager realize the importance and effect of mental bargain and pay more attention to building and safeguarding the mental bargain, we can use the mental bargain correctly in human resources management and organization management

    心理契約的革要求我們對人力資源管理系統中某些與心理契約關系密切,同時隨著員工心理契約的化難以有效發揮作用的部分進行革,具體可以從以下幾個方面入手:建立心理契約動態追蹤測制度以及時了解員工心理契約的化特點;建立薪酬模式動態機制以滿足員工對經濟利益的需求;進行職業生涯設計以滿足員工我實現的需求;建立雙重公平體制以滿足員工對公平的追求;實行我管理式學習以滿足員工對能力提高的需求;對員工進行心開發以引導員工形成正確的心理契約。只有組織的管理者真正認識到心理契約的重要,認識到心理契約對員工的態度和行為的影響,重視心理契約的建立和維護,才能在人力資源管理甚至整個組織管理中應用好心理契約這一劑良方。
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