装配夹具的设计及应用

设计一种能够使工件按一定的技术要求准确定位和牢固夹紧的杠杆夹具,提高产品质量和生产效率。     

广利油田莱1、莱36断块微型构造与油井生产关系的研究

研究了广利油田莱１、莱３６断块的微型构造、沉积微相以及动态因素对油井生产的影响。根据这两个断块上所打的１５口调整生产井６年多时间的大量资料及静态研究成果，得出的结论是：处于正向微型构造上的井（简称正微井）高产，处于斜面微型构造上的井（简称斜微井）产量中等，处于负向微型构造上的井（简称负微井）低产，负微井平均单井累计产量已减至正微井的六分之一。分析了影响三类油井生产的因素和造成大的差异的原因，主要是微型构造、沉积微相和动态因素。指出：在高含水期打调整生产井必须经过微型构造和沉积微相的精细研究，选择在正微区布井；在斜微区，应在比注水井高的部位上布井；在负微区，不应布生产井，而只能布注水井。     

CH_4-CO_2两步制合成气过程的热力学分析

以热力学为基础讨论了甲烷裂解制氢、ＣＯ２和／或Ｏ２气消碳制ＣＯ，并集成为两步制合成气过程的可行性及其优缺点；讨论了此过程的操作条件。计算表明，６００℃是适宜的操作温度；此温度下采用组成为含氧１２．４％（ｍｏｌ）ＣＯ２－Ｏ２的混合气作为脱碳气体，可消去积碳和消碳两步达到热量的供给平衡。     

HH902钢铁常温发黑剂配套工艺研究

本文着重介绍了HH902钢铁常温发黑剂的特点及配套工艺,介绍了清洁生产、节能的、具有可操作性、适用性的几种工艺流程及应用效果.     

利用造粒硝铵装置改产硝基复肥

介绍利用原有造粒硝铵生产装置改产硝基复肥的生产原理、工艺流程和技术特点,使用差动式造粒机成功解决了高黏度熔融液造粒困难的问题。川化股份有限公司原13万t/a造粒硝铵改产11万t/a硝基复肥,投资258万元,年销售收入12 650万元,投资回收期(含建设期)1.39年。     

产品试制流程的对象化设计方法

以机电产品为例,提出了产品试制流程的对象化方法,包括流程模块分解、对象化设计、层次服务定义等.     

Non-Cytokine Protein Profile of the Mesenchymal Stem Cell Secretome That Regulates the Androgen Production Pathway

Polycystic ovary syndrome (PCOS) is the most common endocrine and metabolic disorder in reproductive-aged women, and it typically involves elevated androgen levels. Recently, it has been reported that human bone marrow mesenchymal stem cells (hBM-MSCs) can regulate androgen synthesis pathways. However, the details of the mechanism are still unclear. hBM-MSC-derived secreted factors (the secretome) are promising sources of cell-based therapy as they consist of various types of proteins. It is thus important to know which proteins interact with disease-implicated biomolecules. This work aimed to investigate which secretome components contain the key factor that inhibits testosterone synthesis. In this study, we fractionated hBM-MSC-conditioned media into three fractions based on their molecular weights and found that, of the three fractions, one had the ability to inhibit the androgen-producing genes efficiently. We also analyzed the components of this fraction and established a protein profile of the hBM-MSC secretome, which was shown to inhibit androgen synthesis. Our study describes a set of protein components present in the hBM-MSC secretome that can be used therapeutically to treat PCOS by regulating androgen production for the first time.     

化工生产装置工艺外管架的设计

随着化工事业的迅速发展,外管架的设计工作增多,在如此众多的管架中,选用经济合理的材质和形式,设计成各种不同类型的管架,以满足生产装置的需求和确保生产装置安全正常运行。介绍了化工生产装置工艺外管架的布置原则、分类、设计、向土建专业提供的要求及设计中存在的问题和改正建议,供设计人员参考。     

食品加工企业做好设备选型的探讨

介绍了从警备的工艺性、适应性、经济性、效能、可靠性、维修性等多方面择优设备的经验。