次數面 的英文怎麼說
中文拼音 [cìshǔmiàn]
次數面
英文
frequency surface-
As it can be expressed easily by argument equations, we use the conicoid as the criteria of points " classification. based on the point ' s normal and the adjacent field, corresponding to the conicoid equation such as plane, ball and cylinder, we search the points that fit the equation along the adjacent field. using this method, we realized the automatic classification of unorganized points
本文採用了可以比較方便地用參數方程表示的二次曲面作為數據點的分類標準，根據點的法向量以及其鄰域結點的各種屬性，對應于平面、球面、柱面等二次曲面，依據曲面方程的特點，從起始點開始沿鄰域深度優先遞歸尋找符合方程的數據點，實現了散亂數據點的自動分類。We deduce frondose algorithm of three layers bp neural networks which is used in common, and discuss several important issues in designing neural networks which is used to forecast, for example, number of hidden layer, nerve cell number of hidden layer, epoch of learning, embryonic power value, decision of node number about input and outputo at the same time, this dissertation sums up things that conventional bp algorithm is improved on considering disadvantages of it
3推導了常用的三層bp神經網路具體演算法，討論了實際預測應用中神經網路設計方面的幾個重要問題，如隱層數、隱層神經元數、訓練次數、初始權值、輸入節點數以及輸出節點數的確定。同時，針對傳統bp演算法存在的各種各樣的缺點，文中綜述了對其改進的情況。This paper studies the integration of advanced mathematics and language of computer, an example hyperboloid of one sheet is given
摘要以二次曲面為例，探討了計算機語言與高等數學教學的整合問題，並給出了一個單葉雙曲面的應用程序編寫實例。Following is the factors ideating with the surface of old concrete in different way ( including brushing surface, chiseling surface, cleaving surface ), adherence agent ( including cement slurry, cement sand slurry, cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining. as a result, we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree. the larger rougeness is, the larger the splitting tensile strength on the adhension face is. the kind of adhesion agent is also influence on the adherence capability of new on old concrete. the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete. the analysis of tests give some advices to the practical engineering
主要考察了老混凝土表面不同處理方式（刷毛面，鑿毛面，劈裂面） 、界面粘結劑類型（水泥凈漿，水泥砂漿， u型膨脹劑水泥漿） 、凍融循環次數等對新老混凝土粘結面劈拉強度的影響，以及凍融作用下新混凝土加氣對粘結面劈拉強度的影響。試驗結果表明，粗糙度對新老混凝土粘結性能有重要影響，隨著粘結面粗糙度的增大，粘結面劈拉強度不斷增加；界面粘結劑類型對新老混凝土粘結性能有一定影響，在凍融作用下， u型膨脹劑水泥漿粘結效果不如水泥凈漿和水泥砂漿；凍融循環對粘結面劈拉強度有較大影響，加氣能明顯改善新老混凝土粘結面的抗凍能力。Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value
同時，由於poisson分佈的特性，我們知道不存在其參數區間長度小於0 . 5的置信區間，基於這些情況，我們主要展開了以下兩個方面的研究：一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間， wald置信區間， bayes置信區間等進行分析比較，發現了一些缺陷，針對這些缺陷，我們進行適當的修正，並得到幾種性質較好的置信區間如：修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度，我們提出了一種漸近的兩階段區間估計程序，並利用數值計算的方法，在各種置信系數與區間長度限定下，算出了最優的第一階段觀測次數（抽樣量） ，大量數據表明，本文考慮的方法性態良好，具有應用價值。Parameters extraction of quadric surface based on real - coded genetic algorithm
基於實數編碼遺傳演算法的二次曲面提取Identifying and parameters extraction of quadric surface based on discrete point
基於離散點的二次曲面識別及參數提取The technology of database develops from hiberarchy database, retiform database to relational database, even oo database, that has become to the base of information system. since 90 ' s, as a kind of language of network programming, java makes best use of network resources and it ' s portable, cross - platform, reusable and extendable
數據庫技術經歷了從層次數據庫、網狀數據庫到關系數據庫以及面向對象數據庫的發展，已成為計算機信息系統中的重要基礎和支柱，並在傳統的商業和事務處理等領域內趨于成熟。The efficiency of making use of economic resources in china is low, and one of the most important reasons about economic performance is that the national industry exists many defects, such as the low economic level of scale, the whole character of business enterprise not getting to increase with product construction over a long period of time, the small business enterprise increasing blindly, which causes the bargain of times increase and the trade expenses rise unduly, the lower degree of profession and cooperation, many more types of business enterprises, but lack of cooperation with the related and large business enterprises in the production, operation etc, so being difficult to take advantage of and share economy scale with big business enterprise ; the bad market performance and so on
中國經濟發展中資源利用效率低，而經濟效益低下的一個重要原因是國有工業發展中存在許多缺陷:規模經濟水平不高，企業整體素質和產品結構長期得不到提高，小企業盲目增加，導致交易次數不適當地增多，交易費用上升;生產專業化協作程度較低， 「大而全」 、 「小而全」的全能型企業大量存在，但缺乏與相關大型骨幹企業在生產、經營等方面的協作，難以分享大企業規模經濟的好處;市場運作績效差等。For one thing, if the materials store is too large, it will occupy too much fund and lead to torpidity of turnover fund. on the other hand, if the materials store is too small, it cannot meet the requirement of selling and producing, and will certainly increase purchase frequency or produce batch, thus this will expand the cost of purchase and produce and will reduce the enterprise profit
一方面，如庫存量過大，則佔用資金量過多，易於造成流動資金周轉不靈；另一方面，若庫存量過少，不能滿足生產、銷售的實際需要，勢必要增加采購次數或生產批次，加大了采購或生產成本，從而減少了企業的利潤。This paper explores the internal laws between such port production elements as the harbor tugs " disposition, the port " s production throughput and the number and time of the arrived ships ; under the framework of " the development project of qingdao harbor in five years " by qingdao government ; through collecting large amounts of statistic data ; under the premise of scientific induction, arrangement and calculation to all of the port " s production elements which affect the regular harbor tugs " disposition, especially under the premise of much statistic analysis to the arrived ships ; on the basis of the overall analysis to the qingdao harbor " s production from 1999 to 2000 ; through the analysis to the present disposition scale of the harbor tugs and the port " s production and management. additionally it predicts the change of the port " s production elements according to the total object of the port " s development in order to work out a relatively scientific calculation method for disposing the harbor tugs scientifically as well as decreasing blindness in disposing the harbor tugs, and also make the disposition scale of the harbor tugs scientific and reasonable with each passing day so as to answer the demands of the port " s production and management along with it " s development
本文是在青島市政府關于《青島港未來五年發展規劃》的框架下，通過搜集大量的統計資料，在對青島港1999年至2000年生產全面分析的基礎上，對影響港作拖輪規模配置的港口生產各要素進行科學的歸納、整理、計算，特別是在對到港船舶的大量統計分析的前提下，通過對目前港作拖輪的配置規模與港口生產經營情況的分析，探索港作拖輪的配置與港口生產的吞吐量、到港船舶艘次數等港口生產要素間內在的規律，並根據港口發展規劃的總體目標預測未來港口生產各要素的變化情況，以期能為各港口科學合理地配置港作拖輪、減少配置港作拖輪中的盲目性提出較為科學的計算方法，使港作拖輪的配置規模日趨科學、合理，滿足港口生產經營及未來發展的需要。The device is programmed basically on a page basis, but it does allow multiple partial page programing of a byte or consecutive bytes up to 528, in a single page program cycle
最後一句是不是說擦除一次后，在下次擦除之前在一個頁面中的編程次數主陣列中不能超過1次，空閑陣列中不能超過兩次？" anchor " have developed new resin bonding " bsd " " bsw " which are special designed for surface grinding to achieve better cutting ability and longer wheel life. the performance of cutting ability is remain the same level and continued for a long time. wheel dressing times and wheel consumption can be reduced to minimum for improving working efficiency and making total grinding cost down
平面研磨發展至今，趨往高精度高精密之研磨要求而研磨材質也演變成選用高硬度及難研削材，因此，在整體研磨加工要求變的如此嚴苛情形下，嘉寶特別新開發bsd及bsw平面研磨專用樹脂結合劑，此新開發之結合劑用於平面研磨時能發揮出比以往製品更佳之切削力及耐用度表現，且其優異的切削表現能長時間持續，可大幅減低砂輪修整次數及砂輪損耗，進而提升工作效率降低整體研磨成本。In april 2001, an undercover fbi agent, posing as a broker, arrested del carmen who agreed at an earlier meeting to a deal whereby he, del carmen, was to receive 1 million upon delivery of a " safekeeping receipt " that was allegedly backed by hundreds of millions of dollars of gold
2001年4月，一名聯邦調查局臥底探員假扮經紀，成功將del carmen拘捕。在他們之前的一次會面中， del carmen同意進行一項交易，就是由他交付一份「保管收據」 ，以換取一百萬美元。該份「保管收據」據稱是與價值數億美元的黃金有關。Rainfall frequency and amount are thus crucial factors in determining the position of deposition in a soil profile.
降雨次數和降雨量是左右溶質在土壤剖面中沉積位置高低的決定性因素。Therefore on one hand driving beam unit adopting high - slipping motor can save energy, on the other hand it can increase the factors of energy loss, therefore, saving energy in all is very limited
故採用高轉差率電機驅動抽油機，既有節能的一面，也有增加能耗的因素。故總體節能有限。而且還不能根據油井狀況調節沖程次數。The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難，對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析，首次全面分析了非穿透裂紋端部場三維影響區范圍，給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解，並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。This paper, on the basis of yuelu - mountain high - tech park in changsha city, beginning with the investigation of diversiform transit - trip in the park, firstly analyzes and evaluates space - time change law of traffic flow and situation of traffic service level on actual road net - work in the park ; secondly, applying multi - statistical analysis method, taking investigated corporation as sample, using annual freight traffic volume produced by unit plant area of the corporation, with clustering analysis, obtains four sorts of the sample corporation, and establishes the predict models of freight traffic volume for every kind of corporation. with these models, actual or planning year ’ s day maximum freight traffic volume can be predicted. the third, this paper makes analysis research of trip law of employees in the park, and obtains the index of trip times, trip modes and trip development trend of the employees
本文以長沙市嶽麓山高科技園區為依託，從調查園區內的各類交通出行開始，首先分析評價了園區內現狀道路網上的交通流時空變化規律及道路網上的交通服務水平狀況;其次是應用多元統計分析方法，以調查企業為樣品，以企業單位車間面積所產生的年貨運交通量為變量，通過聚類分析，獲得了樣本企業的四個類別，並建立了各類企業貨運交通量的預測模型，應用這些模型，可預測園區內現狀或規劃年的日最大貨運交通量;第三是對園區內企業員工的出行規律做了分析研究，獲得了企業員工的出行次數、出行方式及出行發展趨勢等等特性指標;最後是對園區內小區居民的出行狀況進行了分析，獲得了居民出行的諸如高峰時段、高峰出行量等等的特徵數據。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。Results compared with the nongranuloma group, the granuloma group shows increased disease activity, more frequent usage of immunosuppressant, higher operation rate and more postoperation complications
結果肉芽腫組較非肉芽腫組在疾病活動度、免疫抑制劑的使用、手術次數及術后並發癥等方面無明顯升高。分享友人