组合方法
- 与 组合方法 相关的网络例句 [注:此内容来源于网络,仅供参考]
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On the basis of traditional combination forecast models, the linear forecast models based on relative error criteria are researched.
在讨论传统的组合预测方法的基础上,对相对误差准则下的线性组合预测进行了研究和推广。
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On global optimal algorithms, a heuristic 0-1 Integer Liner Programming algorithm is achieved, which combines heuristic enumeration method and revised simplex method. Simulation experiments show that the degree and optimization efficiency in our algorithm is obviously improved compared with the MATLAB 7 bintprog function that is a 0-1 integer programming algorithm. Moreover our algorithm isn\'t relevant to the scale changes of Web services composition and candidate service sets, thus it is applicable for the scenes that the scales of Web services composition changed dynamically. But for Web services composition with service alliance, the algorithm is unable because the non-linear global optimal model of the fitness function and QoS constraints can\'t be expressed in linear mode.
在全局优化算法研究上,基于启发式0-1整线性规划算法结合了修正单纯形法和启发式枚举法,仿真实验表明该算法与MATLAB 7的0-1整数规划方法比较,在优化程度及优化效率上得到了显著改进,并且对服务组合和候选服务集合的规模变化没有明显的相关性,因而该算法可用于服务组合规模动态变化的场景,但该算法不能应用于存在服务联盟的非线性全局优化模型。
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The second part is to do stick model prediction, which utilizes the characteristics of survival of the fittest in Genetic Algorithm. As a result, we can obtain a stick model that is fittest to the silhouette after several generations of evolutions.
第二部分是预测骨架,在这边我们是透过基因演算法的方法预测骨架,透过基因演算法的特性适者生存,适者淘汰"的规则预测骨架,因此在产生代的骨架组合后,我们将可以从这些组合中得到一组最适合的骨架。
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Triple exponential smoothing method and the combined of triple exponential smoothing method and Markov model both belong to time series method. Triple exponential smoothing method strongerly dependenced to short-term data. The combined method needed data which had more accurate; it must be the data of population quantity of many years continuously.
2三次指数平滑法、三次指数平滑法和马尔可夫链预测模型的组合预测方法都属于时间序列分析法,三次指数平滑法对近期数据的依赖性较强,组合预测法对数据的要求较高,必须是多年连续的种群数量变动数据。
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In this paper one combined load forecasting method based on fuzzy synthetic evaluation is advanced, in which the experience of the forecasters and the uncertainness of load forecasting are considered adequately.
针对电力系统负荷预测受很多不确定因素的影响,在本文中把模糊综合评判应用到组合负荷预测中,这种组合预测方法充分考虑了预测人员的预测经验和负荷预测的不确定性。
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The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.
塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的"瓶子模型",解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了"缝洞单元"的概念,并制定了"缝洞单元"纵横向划分的基本原则和依据及划分方法,并对"缝洞单元"进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。
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Through the test of several standard testing functions, IPSO shows better ability of searching global best result and avoiding falling into local best position. It is a banausic algorithm.
针对负荷预测问题,本文给出了一种基于改进粒子群优化算法的电力负荷组合预测方法,用改进粒子群优化算法确定组合权重。
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The invention is constituted by raw material drugs which adopt part by weight to be a unit, and the raw material comprises 35 parts of cassia seeds, 30 parts of loranthus parasiticus, 30 parts of haws, 20 parts of lotus plumules, 20 parts of scrophularia roots, 15 parts of wild chrysanthemum flower, 15 parts of seabuckthorn fruit, 10 parts of kudzu roots, and 10 parts of cimicifuga foetida.
本发明公开了一种治疗高血压所致的头痛、眩晕、耳鸣、肢体麻木等症的药物组合物及其制备方法,该药物组合物主要由以重量份为单位的下列原料药组成:决明子35份、桑寄生30份、山楂30份、莲子心20份、玄参20份、野菊花15份、沙棘15份、葛根10份和升麻10份。
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The analysis model of nonlinear finite element of this structure is established, and the describable method of initial displacement is given. Using the analysis model, the influence of different thickness of steel web and different initial displacement on load bearing capacity and critical load of a steel concrete continuoes composite beam is analyzed.
建立了钢混凝土组合结构的非线性有限元分析模型,给出了初始挠曲的定量描述方法,分析了不同厚度腹板连续组合梁的失稳临界荷载,不同初始挠曲对相同厚度腹板的极限承载力和失稳临界荷载的影响,以及相同初始挠曲对不同厚度腹板的极限承载力和失稳临界荷载的影响
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This paper emphasized on the strength testing of paper-bag which was produced by Foshan Sanshui KelunPaper.Inc. The test was done according to the Chinese Standards(GB/T453—2002、 GB/T450—2002、GB9774—2002 etc.).It showed that , the average CD ensile strength of a single paper is 2.96KN/m, above the normal value of 2.0 KN/m; The average MD ensile strength of a single paper is 3.88 KN/m, above the normal value of 3.8 KN/m; The combined CD ensile strength is 7.88 KN/m, above the normal value of 6.0 KN/m; The combined MD ensile strength is 11.91 KN/m, above the normal value of 11.4 KN/m.
本文针对佛山三水科伦纸业公司生产的纸袋进行了强度方面的测试,根据国家标准(GB/T453—2002、GB/T450—2002、GB9774—2002等),借鉴厂内已有的检测方法,测出了该厂生产用纸单层的横向抗张强度的平均值为2.96 KN/m,高于行业经验值2.0 KN/m;纵向抗张强度平均值为3.88 KN/m,高于行业经验值3.8 KN/m;组合横向抗张强度为7.88 KN/m,高于行业经验值6.0 KN/m;组合纵向抗张强度为11.91 KN/m,高于行业经验值11.4 KN/m。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。