aggregate of data 中文意思是什麼
aggregate of data
解釋
數據簇-
By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。 -
From simulations and data of fire site, most air preheater fire often appear when boiler is started in cool state and standby which fuels of insufficient combustion coagulate and congregate on the parts of air preheater. when the temperature of smoke inpouring air preheater increases, aggregate fuels and sediments will combust in stated temperature conditions. it is called the second combustion of air preheater
這些起火起因於燃料油的不充分燃燒，其結果是未充分燃燒的燃料油凝結和聚集在空氣預熱器的部件上，當進入空氣預器的煙氣溫度增高時，沉積的燃料油被烘烤，當達到一定溫度條件時，則可點燃這些燃料油污沉積物，造成火災發生，這通常被稱為空氣預熱器的二次燃燒。 -
Based on the investigation and study of impact compaction technology in civil and abroad, this paper discusses the impact compaction working sections that include xining ~ huangyuan, machangyuan ~ pingan, xining ~ taersi and pingan ~ adai expressways. through contrast analysis and generalization of the working sections " test data and aggregate analysis of expressways " test result, this paper studies construction process, construction effect test method and efficiency of loess subgrade construction applied by impact compaction technology in qinghai province
本課題在對國內外有關沖擊壓實技術調研的基礎上，依託西湟公路、馬平公路、西塔公路及平阿公路試驗段開展沖擊壓實試驗研究，對各個試驗段的試驗結果進行分析、綜合和總結，研究了沖擊壓實技術在青海黃土路基施工中的施工工藝、施工效果、檢測方法及效益等問題。 -
It analyse the stability with numerical simulation. finally, on the basis of geological estimation and analysis of the monitoring data and the numerical simulation, it conclude : ( 1 ) through the tracking investigation of the deformation phenomenon, and the study of the rock mass constructure of the slop, it determine the mode of the formation and destruction on the basis of aggregate analysis of the monitoring data
最後，結合地質判斷、監測分析結果及數值模擬分析結果以及對典型剖面的極限平衡計算結果，得出了以下主要成果： （ 1 ）通過對「左砂」邊坡變形破壞跡象的跟蹤調研，對斜坡的巖體結構和已經發生的破壞跡象進行深入的研究分析，結合對監測資料的綜合分析，確定了「左砂」邊坡可能的變形破壞模式。 -
This thesis investigated and researched on non - loaded crack, especially those caused by thermal - shrink, and analyzed the thermal - shrink stress of beam, slab and continuous - wall, found that according data of civil and overseas offered thermal - shrink calculating formula without considering effect of factors, such as the cement quantity, using of aruhuesiru, aggregate size and quantity of sand, which made the result data smaller. in addition, there are not enough construct measure in code
本文對非荷載裂縫，特別是溫度?收縮裂縫進行了調查研究，並對兩端或四周約束的梁、板和底部約束的地下連續墻進行了收縮應力分析，發現國內外有關文獻給出的收縮計算公式沒有考慮泵送商品混凝土的水泥用量、外加劑使用、骨料粒徑和砂用量等因素的影響，計算出的混凝土收縮量往往偏小；另外， 《規范》中針對溫度?收縮裂縫的構造措施不足。 -
Unfortunately, as changes are made to the data sources, maintaining the quotient cube is non - trivial since the partitioning of the cube cells must also be updated. in this paper, the authors design incremental algorithms to update a quotient cube efficiently for both sum and median aggregate functions
然而，當數據源發生改變的時候， quotient數據立方體很難進行維護，尤其是針對median這樣的非分步型聚集函數，因為當插入新的元組時， quotient數據立方體中的等價類有的需要進行拆分，有的還需要重新生成。 -
Ddm use region info to describe the supply and demand relation among simulation entities. confirm the aggregate which entities are interested in by region matching. therefore region matching is the basic of data filtering. this paper discusses detailedly the complexity of region matching process from the point of view of the pure arithmetic and develops a rapid matching arithmetic according to the characteristic of region in ieee1516
Ddm使用區域信息描述實體間的數據供求關系，通過區域匹配確定實體的感興趣集合，因此區域匹配是實現數據過濾的基礎，區域信息匹配計算的復雜度是影響過濾開銷的一個關鍵因素。文中從純演算法的角度對區域匹配過程的復雜度作了詳細的分析，並以ieee1516標準為基礎，結合其中區域的特點，提出了一種單維步進的區域匹配演算法。 -
To extend chinese wall policy in multilevel security environment, authors use lattice to label data, and propose an improving policy in term of aggregate system. moreover, authors present a scheme using a database based history access and linklist of aggregate dataset of interest conflict
根據該環境中的chinese wall的利益沖突處理表現為數據聚合問題，利用數據標簽的格級標定，提出一種基於歷史訪問庫和利益沖突聚合鏈表的安全策略實現方法 -
On this bases, two improved algorithms are given in cases such as input data items with different weight, continuous query networks terminated with non - aggregate operator. they extend the applicability of the algorithm
在此基礎上進一步研究了該演算法在輸入數據單元具有不同權重、以非聚合類查詢操作為結尾這兩種情況下的改進推廣，擴展了演算法的適用范圍。 -
To solve the problem of load shedding about continuous query network in which has multiple input and output data streams and terminated with an aggregate operator, we studied the load - shedding technology and propose the algorithm
針對以聚合類查詢操作為結尾，包含多條輸入數據流，多查詢結果的連續查詢網路的降載問題，對load - shedding技術進行研究，提出了基於分支路徑分析的load - shedding演算法。 -
Creating new rowsets that consist of aggregate or sorted values, sample data, or pivoted and unpivoted data
創建由聚合值或已排序值、示例數據或者透視數據和逆透視數據構成的新行集。 -
The causation of main defects is analyzed from the view of design and improvements are suggested from the structural design, such as the test and determination of basic data of pavement design, rational selection of raw materials, adopting appropriate aggregate sizes, improving blend design method, rational selecting the thickness of asphalt layer and reinforcing the binding between the asphalt pavement layer and the base layer to further improve the operational function of the asphalt pavement and reduce the occurrence of traffic accidents
通過對高速公路瀝青路面的主要病害成因從設計角度進行分析，提出應從完善路面設計基礎數據的測試與確定方法、合理選擇原材料、採用合適的礦料級配、完善配合比設計方法、合理選擇瀝青面層厚度、加強瀝青面層層間及與基層的粘結等途徑完善瀝青路面結構設計，以進一步提高瀝青路面的使用功能，減少道路交通安全事故的發生。 -
Aggregate functions are designed to summarize detail rows, and are typically used in text boxes in the header or footer rows of a data region or a data region grouping
聚合函數旨在用於匯總詳細信息行，通常在數據區域或數據區域分組的表頭行或表尾行的文本框中使用。 -
An aggregate that consists of data objects, with identical attributes, each of which may be uniquely referenced by subscripting
程序設計語言中）由同一屬性的多個數據對象組成的聚集，每一數據對象可唯一地通過下標來引用。 -
The superblock identifies the partition as a jfs aggregate, while the allocation map describes the allocation state of each data block within the aggregate
超級塊將分區標識成jfs聚集，而分配映射表描述聚集內每個數據塊的分配狀態。 -
An application case has been used to validate the aggregator. the kpi aggregator implements dynamical generation of the data sources, aggregate methods and aggregate processes
本研究所實現的kpi匯集使能器實現了數據源、匯集方法、匯集過程的動態指定。 -
In pl / 1, a hierarchical set of names that refers to an aggregate of data items that may have different attributes
在pl / 1語言中，引用具有不同屬性的數據項集合名的層次集合。 -
A working group set up by the g - 10, and led by jean - pierre patat of the banque de france, studied the feasibility of collecting and disseminating aggregate positions data in the foreign exchange market
，由十國組織成立，並由法國央行的jean - pierre patat領導的工作小組就收集和公布外匯市場整體持倉狀況的數據的可行性作出研究。 -
No matter how large the overall aggregate bandwidth from all pci buses, the volume of data that the operating system can handle will finally determine how much i o an application can accomplish
從所有pci總線聚集的總帶寬無論有多大，操作系統可以處理的數據量最終將決定一個應用程序可以完成多少i / o 。 -
Hence, it is obvious that the importance of data warehouse and data mart. presently, the researches on data warehouse are mainly focused on how to extract, load, clean, compute, aggregate data and how to improve storage structure in data warehouse. but, the management of data warehouse process self is little noted
目前，對數據倉庫的研究大多集中於如何對數據進行抽取、裝載、清洗、計算、聚合等過程上，以及如何改善數據倉庫的物理存儲結構，提高存儲空間的利用效率上，而對數據倉庫自身的管理則很少引起人們的注意。
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