- Petri dish所属的单词分类
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Science / 科学
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xenobiology · materials science · genomics · evolutionary biology · earth sciences · Petri dish · volumetric flask · organic chemistry · molecular biology · exobiology
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In the middle of this paper, six kinds of basic Petri net flow modules which conform to Workflow model are put forward. The method of transforming Petri net flow model to XPDL and constructing Petri network using XPDL is given. These establish the base for different modeling method using Petri net. And these extend EJB task engine and Subprocess task engine of distributed Workflow Management System——Flowstep.
文章中心部分是提出了符合工作流元模型的六种基本Petri网流程模块，给出了由Petri网流程模型向XPDL转换的方法以及由XPDL构造Petri网的方法，为不同的建模方法利用Petri网分析技术奠定了基础；扩展了分布式工作流管理系统Flowstep的EJB任务引擎和子流程任务引擎。
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Fig.1 SHEE cultured on coverslide, the living cells were growing in single layer with rich cytoplasm, the nuclei were uniform in size with a nucleolus ph ×400 Fig.2 SHEE had a nucleus with ellipse shape, large nucleolus and the cytoplasm contained mitochondria and tonofibrilEM ×10 000 Fig.3 SHEE was spherical in shape, with pseudopods attached on petri dish and abundant villi on cell surface SEM ×5 000 Fig.4 Same as in Fig.3, cell attached on petri dish, appeared stellate or polygonal in shape, with abundant pseudopods and cytoplasmic processes. Protrusive nuclear region in central part of the cell had more micro-villi SEM ×5 000 Fig.5 Chromosomes of SHEE cells belonged to diploidy type Giemsa ×1 000 Fig.6 The SHEE cells of stained in dark brown by Ki67 immunohistochemistry were the proliferative cells Immunohistochemistry ×400 Fig.7 In SHEE cell culture, the nucleus stained red or pink by PI was dead cell, the green nucleus was living cell Fluorescent ×400 Fig.8 The cell labeled by TdT was apoptotic cell in which the chromatin of nucleus condensed in block, a pyknotic nucleus in the upper right conner was seen TdT labeled ×400
图1 SHEE培养在盖坡片上，活细胞单层生长，胞浆较丰富，细胞核大小一致，有核仁×400 图2 SHEE培养细胞细胞核椭圆形，核仁较大，胞浆有较丰富的线粒体和张力原纤维EM ×10 000 图3 SHEE细胞呈球状，有伪足贴壁，表面有密集微绒毛SEM ×5 000 图4 同上细胞贴壁，呈星状或多角形，有丰富伪足和胞浆突，核区隆起有较多微绒毛SEM ×5 000 图5 SHEE细胞染色体仍属二倍体Giemsa染色×1 000 图6 SHEE细胞Ki67免疫组织化学染棕黄色为增殖细胞×400 图7 SHEE培养细胞出现死细胞，胞核和胞浆PI染色呈红色或淡红色，蓝色细胞核为活细胞荧光显微镜×400 图8 细胞TdT标记阳性为凋亡细胞，染色质凝集呈块状，右上角有一固缩细胞核TdT标记×400
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To prepare studying hierarchical intelligent control system of material flows in mineral processing plant further, picturing, transition rulers, analytic methods, relevance matrix and dynamic equation, defect in applying of Petri network, fall short of orient object models applying are discussed after technology of formalization model built, non-formalization built and compound model. And Petri network system with time attribute is expanded opening network system with interface of input and output. The network system expanded with all attributes of basic Petri network model has hierarchy and recursiveness, can be analyzed with mathematical tools of network system and can deal with concurrent and asynchronously also.
为了对选矿厂生产物流递阶智能控制系统的进一步研究奠定基础，本文在讨论了形式化建模技术、非形式化建模技术和复合模型的基础上，研究和分析了Petri网的图形表示、变迁规则、分析方法、关联矩阵与动态方程、Petri网模型应用中的缺陷、面向对象模型应用中的不足，并把采用赋时的Petri网系统扩展成为对外界有输入和输出接口的开放网系统，扩展后的Petri网具有递阶性和递归性，同时保持基本Petri网的所有性质，使模型仍可采用网系统数学工具进行分析，并可处理生产物流系统中的并发性和异步性。
- 更多网络解释 与Petri dish相关的网络解释 [注：此内容来源于网络，仅供参考]
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petri dish culture：平皿培养
petri dish 培养皿 | petri dish culture 平皿培养 | petri plate 培养皿
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petri dish; petri dish：培养皿
杀虫剂 pesticide | 培养皿 petri dish; petri dish | 矿脂;凡士林 petrolatum
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petits maux：小阵痛,初阵痛
\\"癫痫小发作\\",\\"petit mal\\" | \\"小阵痛,初阵痛\\",\\"petits maux\\" | \\"培养皿\\",\\"petri dish,Petri dish\\"