未定因子 的英文怎麼說

中文拼音 [wèidìngyīnzi]
未定因子 英文
undetermined multiplier
  • 未 : Ⅰ副詞1 （沒） did not; have not 2 （不） not Ⅱ名詞1 （地支的第八位） the eighth of the twelve ear...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 未定 : uncertain; undecided; undefined
  1. Optimized association rules are permitted to contain uninstantiated attributes. the optimization procedure is to determine the instantiations such that some measures of the roles are maximized. this paper tries to maximize interest to find more interesting rules. on the other hand, the approach permits the optimized association rule to contain uninstantiated numeric attributes in both the antecedence and the consequence. a naive algorithm of finding such optimized rules can be got by a straightforward extension of the algorithm for only one numeric attribute. unfortunately, that results in a poor performance. a heuristic algorithm that finds the approximate optimal rules is proposed to improve the performance. the experiments with the synthetic data sets show the advantages of interest over confidence on finding interesting rules with two attributes. the experiments with real data set show the approximate linear scalability and good accuracy of the algorithm

    優化關聯規則允許在規則中包含未初始化的屬性.優化過程就是確定對這些屬性進行初始化，使得某些度量最大化.最大化興趣度因子用來發現更加有趣的規則;另一方面，允許優化規則在前提和結果中各包含一個未初始化的數值屬性.對那些處理一個數值屬性的演算法進行直接的擴展，可以得到一個發現這種優化規則的簡單演算法.然而這種方法的性能很差，因此，為了改善性能，提出一種啟發式方法，它發現的是近似最優的規則.在人造數據集上的實驗結果表明，當優化規則包含兩個數值屬性時，優化興趣度因子得到的規則比優化可信度得到的規則更有趣.在真實數據集上的實驗結果表明，該演算法具有近似線性的可擴展性和較好的精度
  2. At the same time, this paper also describes the fluctuation of soil nutrients and the contrast between soil of leguminosae and non - vegetation covering. the results are as follows : 1 ) despite the mesophyte leaf form of the ten pioneer species there were significant differences in leaf anatomical characters among them and some differences among different plants of an individual

    結果表明研究區喀斯特先鋒植物葉片在不同種類之間具有明顯差異，這些差異除受遺傳因子控制外，環境因子（主要為光照和水分）也有重要作用；生活型不同對先鋒植物葉片特徵有一定影響，但未表現出規律性。
  3. 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。
  4. The endocrine cells in the digestive and glands of alligator sinensis embryos aged from 8th to 55th day were localized and compared by using immunohistochemical method with thirteen kinds of antiseras of hormone. during the development of pancreas in alligator sinensis embryos, somatostatin ( ss ) immunoreactive ( ir ) cells, 5 - hydroxytryptamine ( 5 - ht ) - ir cells, glucagon ( glu ) - ir cells, epidermal growth factor ( egf ) - ir cells appeared on 18th day. no p53 protein - ir cell, gastrin - ir cell, testosterone - ir cell, chromogranin a - ir cell, vasoactive intestinal polypeptide - ir cell, epithelial membrane antigen - ir cell or insulin - ir cell was found in the pancreas of alligator sinensis embryos

    本實驗採用免疫組織化學技術，應用13種不同的抗血清，對孵育時間8 ? 55天揚子鱷胚胎消化道及消化腺內分泌細胞的種類進行鑒別、定位和比較，結果如下：揚子鱷胚胎胰腺中，生長抑素、 5 ?羥色胺、胰高血糖素、表皮生長因子、胰多肽免疫反應陽性細胞出現于第8天； p物質免疫陽性細胞出現于第18天； p53 、胃泌素、睪酮、嗜鉻素a 、血管活性腸肽、上皮膜骯原、胰島素免疫陽性細胞在各期揚子鱷胚胎胰腺中均未發現。
  5. To search proteins that associate with the mouse mint protein and regulate notch signaling in nuclei, and to study the function and mechanism of mint - mediated transcription repression, yeast two - hybrid assay was used to screen proteins that interact with a fragment of mint ( f5, amino acids 2226 - 2959 ). from 4x106 yeast clones transformed with the bait plasmid and a cdna library of 9 dpc mouse embryo, fifty - one were positive for nutritional screening and p - galactosidase assay. restriction digestion identified 10 independent positive clones and these were analyzed by dna sequencing these clones represent 3 correctly fused cdna fragments, which are mint, alpha a - crystallin - binding protein i ( alphaa - crybpl ), and nuclear receptor co - repressor 1 ( n - corl ), respectively

    鑒于mwt基因編碼區較長，共有10799個堿基，故此我們將mint分為六段，分別命名為fi一f6 ，本研究以其中的f5 （ 222e959 ）和f6 （ 296s576 ）片段為研究對象，將h者分別插入pgb盯7載體中，結果顯示： mintfs可與核受體輔助抑制因子1階cori ） ， o晶狀體蛋白結合蛋白1hlphatcrybp入及mw加互作用，而f6可與igm的重鏈恆定區、泛素結合酶2l6和一個未知功能的新的蛋白基因進行結合。
  6. Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation

    確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ；在排土場新造地貌上，擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 （ 2 ）以南排土場徑流試驗場長期的定位觀測為基礎，對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究，確定了徑流和土壤水蝕的主要影響因子及其臨界值，建立了產流產沙的經驗模型。
  7. So this paper tries to solve these problems through the following work : first, we select some index to valuate the close - end funds, including income, stability, risk in falling, stocks selecting ability and tuning ability, based on overseas funds valuation methods and domestic market condition ; second, we analyze the stability of all index and form two styles index, which are f and other bad stability index ; then, we form the valuation system, including two - layers index, which are p and factor score ; last, we use this system to analyze the close - end funds which came into existence before 2000 and get the final comparative result. the main intention of this paper is to create the system of valuating close - end funds in our country, which is comprehensive and objective. in my valuation system involving the period from 2000 to 2003, the funds as a whole performs inferior to the stock index

    首先，對國外理論界經典成型的、以及前沿的基金評價指標和評價方法進行了詳細的分析，並結合我國的基金市場狀況，選取了可以衡量基金收益、穩定性、下跌風險、股票選擇能力、時機選擇能力等量化指標；其次，根據我國基金分析的需要，採用了諸如基金交易價格、換手率等二級市場表現指標；然後，對這些指標進行了時間延續性分析，檢測這些指標在運用到我國基金市場時能否有效預測基金未來表現，從而形成了兩類指標：時間延續性很好的s _ p和時間延續性不好的其它所有指標；再次，在以上工作的基礎上形成了由兩個層面的指標構成的我國證券投資基金評價體系： s _ p和因子分析中綜合因子得分值；最後，選取了我國2000年1月1日前成立的23隻封閉式基金作為樣本，並同時採用上證a股與深成a股兩個基準組合進行了3年樣本期的實證分析，得出了最終的比較性評價結果。
  8. Including actuality evaluation, environmental identification analysis, dynamic harmonious analysis, dynamic simulation analysis and policy decision putting into optimization scheme. the results showed as follows. 1, in the current agricultural production structure, output value of animal husbandry and crop planting occupy 93. 4 % of agricultural total output value, and forestry and fishery do not get fully reasonably develop ; the wild economic vegetables and fruits resources and water resources etc, are the superiority environment factors of agriculture development of this area, and the slope farmland and service system etc, are limited environment factors, and the science - technology and labor quality etc, are potential environment factors ; there exists some problems in the agricultural production system, for example, single productive constitution do n ' t correspond with varieties of resources, rich plant resources exploitation scarcity and economical crop development lag

    本文選擇四川盆周山區這一特定地貌區域作為研究對象，以滎經縣為代表研究了該區農業生產結構的優化調整，包括農業生產系統的現有結構評價、環境辨識分析、動態協調分析、動態模擬評價分析和實施優化方案的決策建議，結果表明： 1 、滎經現有結構為以畜牧業和種植業並重的豬糧為主的農業生產結構，二者產值占農業總產值的93 . 4 ，林業、漁業未得到充分合理發展；野生經濟菜果資源、水資源等為該區農業發展的優勢環境因子，坡耕地、服務體系等為限制環境因子，科技、勞動力素質等為潛力環境因子；同時該區農業生產系統存在著生產結構的單一性與資源多樣性的利用不協調、豐富的植物資源開發不足、經濟作物發展滯后等問題。
  9. A rapid, simple method has been developed for determination of ammonium perchlorite by using formaldehyde. this experiment proved that this method saved measuring time, raised speed and efficiency

    摘要實驗證明甲醛法測定銨鹽含量，只要準確測定出較正因子對結果加以校正，是能夠直接使用未經蒸餾去除甲醇的甲醛溶液而測定結果不存在顯著差異，本方法簡單、快速。
  10. The grade of used land and non - used land are made, the potentiality of land production and the land bearing capacity are studied

    並採用經驗方法確定各因子的權重。然後具體進行了土地利用現狀評級和未利用土地適宜性評級工作。
  11. It uses factor analysis method and dualistic relative comparative method to account the ability place of a loan enterprise in its industry, which can confirm the station in its industry better. by using time series model to forecast an enterprise ' s cash flow in the future, we can measure the repayment ability of an enterprise. by using logit model to account the probability of default for a loan enterprise, we can estimate the possibility of its default

    運用因子分析法和二元相對比較法計算貸款企業在本行業中的財務能力排名，更好地確定其在本行業中的地位；運用時間序列模型預測企業未來的現金流量，從而測度貸款企業未來的還款能力；運用logit模型計算貸款企業的違約概率，估計其違約的可能性；從貸款企業的行業風險、經營風險、管理風險、借款人還款意願等方面對貸款企業的非財務因素進行分析。
  12. The landscape pattern is in the constant development and change, and today ' s pattern took shape based on the past landscape flows, including natural, social, economic and various kinds of ecological processes, therefore through analyzing the landscape pattern change at different time, we can reflect the landscape ecological processes, expound succession mechanism and rules in landscape, predict the variation tendency in the future of the landscape, and realize the sustainable utilizing of landscape resource finally

    景觀格局不僅體現著自然的、生物的和社會的各種生態過程在不同空間尺度上相互作用的結果，同時又決定著各種自然環境因子在景觀空間上的分佈和組合，從而制約著各種生態過程，影響著景觀內能量流、物質流和物種流的變化。因此，通過研究景觀格局可以更好地理解生態學過程，通過分析景觀格局隨時間的變化可以反映景觀生態過程，揭示景觀演替的機制和規律，進而預測景觀的未來變化趨勢，最終實現資源的可持續利用。
  13. The identified proteins are involved in a variety of cellular process including several zinc finger proteins relevant to transcription regulation, such as zinc finger 198, 263, 14, 224, zf6, novel protein similar to transcriptional represser ctcf, and kruppel - like zinc finger protein ; two members of the adams ( a disintegrin and metalloprotease domain ) family ; two members of integrin family ; several proteins involved in the signal transduction, cell - cycle control, chromatin remodeling and transcription repression ; and also some proteins of cell skeleton and some with unknown functions

    鑒定出的蛋白包括多個與轉錄調控相關的鋅指蛋白，如鋅指蛋白198 、 263 、 14 、 224 、 zf6 、轉錄抑制因子ctcf樣蛋白、幻肚pple樣鋅指蛋白等:兩個含金屬蛋白酶結構域和整合素結合結構域的家族成員adam28和adam17 ;兩個整合素家族成員pz整合素和含十個egf樣結構域的整合素（ tied ） ;與細胞信號轉導通路有關的蛋白;與細胞周期調控有關的蛋白;與染色體重塑和基因轉錄抑制有關的蛋白;細胞骨架蛋白以及其他功能未明的蛋白等。
  14. Gene chips is high density probe array which is composed of nucleic acid or nucleic acid band arranged on the solid support media according to the definite order. it can detect unknown molecule by nucleic acid hybridize principle

    基因晶元是將核酸或核酸片段按照一定的順序排列在固相支持物上構成高密度探針陣列，利用核酸雜交原理檢測未知分子。
  15. At present, by the immunohistochemical techniques, there have been the expressions of hsp70, bfgf, cox2 after rat cerebral contusion. the consequences show that the expressions of these three indications show certain changing regulations after rat brain contusion. but there has not been any report about the application of these indications on the estimation of the aging on human cerebral contusion

    目前，已有人分別應用免疫組織化學技術對熱休克蛋白70 （ hsp70 ） 、堿性成纖維細胞生長因子（ bfgf ）和環氧合酶- 2 （ cox2 ）在大鼠腦挫傷后的表達進行了研究，結果表明這三項指標的表達在傷后均呈現出一定的變化規律，但未見有人將hsp70 、 bfgf和cox2應用於人腦挫傷時間推斷的研究。
  16. Although the gene therapy of the human nerve system diseases are still in exploring so far, and similar studies applied to the wild animals have not even been reported, this study will inevitably provide clues for futher studies on the gene therapy in the giant panda and crested ibis

    目前，雖然對人之癲痛與視神經病變類疾病的基因治療尚處于探索階段，而動物在此領域的工作尚未起步，但本文所完成的大熊貓和朱鶴神經營養因子（ ntfs ）基因家族的克隆、表達及活性鑒定工作，無疑為后續的深入研究奠定了基礎。
  17. On the basis of collecting and processing many datum and materials. firstly. this paper analyzes main activities and cost constitutions of each stage of the life cycle of a fcs, and lay a foundation for later analysis and evaluation of system lcc. secondly, a basis method and usage range for estimating the system lcc are introduced. a multivariate linear regression model of pcs development cost and cost driven factor is built by use of the parametric method and supplies the base of cost estimation of newly - developed systems. thirdly, combine actual examples and make statistical analysis of lcc of a certain pcs developed by our institute, predict unhappened usage and service cost with grey prediction method, obtain proportion of each constitute to the lcc. forthly, according to actual conditions, use the fuzzy theory to overall evaluate efficacy of the fcs, fifthly, combimng our actual conditions, investigate specific measures of how to implement the life cycle cost management in our institute and put forward a new conception of developing web - based flight control system lcc management information system with pdm as the platform. at last, investigate important factors such as reliability and maintainability that may affect the life cycle cost of the fcs in detail, and put forward specific methods of lowering the life cycle cost of the fcs

    論文在收集和整理大量資料的基礎上，首先深入分析了飛控系統壽命周期各階段的主要活動以及各階段的費用構成，為以後系統壽命周期費用的分析和評價奠定了基礎；其次，介紹了壽命周期費用估算的基本方法和使用范圍，並利用參數法建立了飛控系統研製費用與費用驅動因子的多元線性回歸模型，為新研系統的費用估算提供了依據；第三，結合實例對我所研製的某型飛控系統的壽命周期費用進行統計分析，運用灰色預測方法對未發生的使用及維修費用進行預測，得出了該系統的壽命周期費用以及各組成部分所佔比例；第四，根據實際情況，首次運用模糊理論對飛控系統的系統效能進行了綜合評價，構造了飛控系統系統效能模糊綜合評價模型；第五，結合我所實際，探討了如何在本單位實施加強壽命周期費用管理的具體措施，提出以pdm為平臺，開發基於web的飛控系統lcc管理信息系統的新構思；最後，對影響飛控系統壽命周期費用的重要因素如可靠性和維修性等進行了詳細地研究，提出了降低飛控系統壽命周期費用的具體方法。
  18. Compared with farmland, the spatial distribution of orchard expressed very different characteristics. under continuous scale, distribution of orchard showed a regular pattern such as unevenness small scale : side length of the box was shorter than 8 cells - evenness small and moderate scale : the length was among 8 and 50 cells - unevenness moderate scale : the length was among 50 and 200 cells - evenness moderate and large scale : the length was longer than 200 cells ; human landscape transformation was the major impact factor of landscape changing, and a kind of moderate scale impact factor. the terrain was only a background impact factor ; during domestic landscape transforming in the working area, because the ecological maintenance value of two agricultural elements were not considered, their structural and functional equilibrium decreased gradually

    果園在中尺度區間的空間分佈與農田相比表現出顯著的差異，連續尺度的空間分佈表現出不均勻小尺度：滑箱邊長小於8個像元均勻中小尺度：邊長在850個像元之間不均勻中尺度：邊長在50200個像元之間均勻中大尺度：邊長大於200個像元的變化規律4人為改造作用是景觀動態變化的主要驅動力來源，並且表現為一種中尺度影響過程，地形因子則為背景性影響因素5景觀改造活動由於未能兼顧農業組分在區域生態穩定性維護方面的價值，兩種組分的整體結構和功能穩定性有所降低。
  19. The 30 percent reduction in risk is, perhaps surprisingly to some, less convincing evidence than the arguments above, because a strong unknown confounder could still account for the connection

    風險降低的證據，不一定如上面所說的那麼具說服力，因為一個未知的強效混淆因子，還是可解釋這30 %風險的降低。
  20. These simulations focused on the major factors driving cretaceous climate changes and the critical time periods of the climate change, and tested the internal and external forcing in the earth climate system and the feedback effects among various spheres of the earth system, thus providing us an understanding of the mechanism of greenhouse climate and an important scientific basis for projection of the future climate changes

    這些古氣候模擬試驗鎖定在氣候變化的關鍵時段和驅動因子、測試地球內外動力和地球各圈層反饋作用，可為認識溫室氣候的成因、探討氣候變化內在機制和預測未來氣候提供重要的科學依據。
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