流网

Its analytic solution is obtained by multiple conformal transformation s including elliptical functions,and the pressure and streamline distributions and the well flow rate are presented for the flow field.

将油藏工程中水平井网渗流作为复杂源汇边界矩形区域的流动，通过椭圆函数等多重保角变换求得其解析解，并得到渗流场的压力分布、流线分布及井产量。

This showed that capacity of water-holding in biological soil crusts were obvious improve,and effected precipitation permeate or water second distribute process.The study results of"fertile islands"formation mechanism in biological crusts showed that biological crusts layer cover could increased nutrients content for below sand soil through precipitation permeate washing,and it promoted plants assimilate more nutriment.The matter import ways of biological soil crusts fertility island had many ways,including the effection of living macrobiotics metabolism in crusts levels,wind-sand flow of near surface,dust deposition and plants decomposition course,etc.Source of particle matter in biological soil crusts was wind-sand flow of near surface,and not dust deposition.Biological crusts layer cover had preserved effection for nature water content in 0-5cm soil layer,compared with the sand of no biological crusts layer,effecting precipitation permeate,and could not obvious restrained from the water evaporate process indoor experiment.

生物结皮层肥岛形成机制的研究结果表明：生物结皮层覆盖能够通过降水淋溶作用而增加下层土壤养分的含量，进而促进植物对养分的吸收；生物结皮层养分输入有结皮生物代谢、降尘、风沙流和植物分解矿化作用等多(来源：A73e3B3eC论文网www.abclunwen.com)种途径，但生物结皮层的颗粒物质来源主要是近地表风沙流，而不是大气降尘；生物结皮层覆盖对0-5cm土层自然含水量有一定的保护作用，并影响降水向深层渗透，不能有效的阻止表层水分的蒸发进程；研究表明采取人工促进技术能够在流动沙丘上形成生物结皮层，实现流动沙地的快速治理。

This article will introduce a currency workflow modeling system, which is based on Petri net, and implement the function of model custom.

本文提出了一种基于Petri网的通用工作流建模系统，实现了工作流模型的自定义功能。

This paper changcs the decoupling judgement problem into a minimum cost network flow problem. The solution algorithm is out-of-kilter . algorithm which is characterized by simple manipaultion, fast and reliable convergence.

本文将这样的高阶系统解耦问题，变换为求网流技术中最小费用流问题，并采用运算简便快速、收敛可靠的OKA法求解。

Firstly, according to the modified workflow process meta-model, a P/T system based workflow model procedure net is proposed.

首先，根据改进的工作流过程元模型，研究并提出了一种基于P/T系统的工作流过程模型过程网。

Second, it models and simulates dynamically the parallel, asynchronous, distributed and concurrent workflow of machinery of cluster with intuitionistic and visual figure, and give the effective controlling strategy of optimal collocating and dynamic attemperation, be dead against the asynchronism and concurrent character of machinery of cluster, which result from that MAS loosens the restricting for centrality, programming and gradation controlling and offers the mechanism of separated controlling, meeting an emergency and parallel disposing.

由于多智能主体技术放松了对集中式、规划、顺序控制的限制，提供了分散控制、应急和并行处理，本文针对基于多智能主体的机群工作流的异步性和并发性采用Petri网技术通过直观、形象的图形，对并行、异步、分布、并发的机群工作流进行了建模分析和动态模拟，并提出了机群的优化配置和动态调度的控制策略。3。

Correct makes the law forms the good personal hygiene habit, sufficient sleep, attendance in exercise, reduced pressure, enough nutrition; The attendance washes the hands, after particularly has contacted the public goods, must wash the hands first touches own eye, the nose and the mouth again; Sneezes and cough time should use the paper goods to cover the oronasal; The indoor maintains ventilates and so on.

正确的法律形式作出的良好个人卫生习惯，充足的睡眠，参加行使，减少压力，足够的营养；出席冲洗手后，特别是已与公共物品，必须先清洗双手触及自己的眼睛，鼻子和口再次；打喷嚏和咳嗽时应该使用文件的货物，以支付口鼻；室内保持通风等等。甲流英语作文：预防甲流的方法由作文网编辑整理，你也可以投稿哦！

ZSM two-drum pulse low net work of the screen, pulp pressure from the top of the screen to cut into the screen, the two fall in the middle drum sieve, sieve in the drum inside and outside of the pressure difference and the dual-rotor rotary-wing together, qualified fiber Through the inside and outside the drum screen after screen to the body at the bottom of the pool, and then by the good plasma discharge tube machine, the screen remained in the dark between the flow of rough slurry residue by the rotor and driven together to drum sieve under the tailings from the slot after the Slag discharge pipe.

ZSM双鼓式低脉冲网前筛工作时，纸浆从压力筛的上部切向进入筛体，流到两个筛鼓中间，在筛鼓内外的压力差及双旋翼转子的共同作用下，合格纤维通过内、外筛鼓后汇集到筛体底部，然后经良浆管排出机外，留在筛鼓之间的粗渣受到浆流和旋翼的推动，汇聚到筛鼓下的尾渣槽后从排渣管排出。

Telstra morning that the acquisition of the media e-hao (IT168/Che168) and the bubble net (PCPOP / Autohome) two of the 55 percent stake in the company, both companies are to achieve operating cash flow, less than the amount of acquired in 2006 acquisition of telecommunications in Australia found The net 51 percent stake in half of 254 million U.S.

澳洲电讯上午宣布，收购皓辰传媒(IT168/Che168)及泡泡网(PCPOP/Autohome)两家公司各55%股份，两家公司均实现正运营现金流，收购金额不及2006年澳洲电讯收购搜房网51%股份2.54亿美元的一半，即不足1.27亿美元(约合人民币8.72亿元)。

Primary innovative work in this paper can be summarized as follows: 1 Based on the Workflow Management System reference model and Workflow Management System frame presented by Wil Va Der Aalst, Wei-kuang Huang ect, we construct a secure Workflow Management System frame with secure characteristic.

2针对基于任务过程模型的不足，分析了基于角色的过程模型，在对象Petri网过程模型中加入角色的概念，构建了一个基于角色的对象Petri网工作流模型。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。