新型二甲醚用双液体热力泵的研究

在分析二甲醚(DME)物化特性的基础上,提出了燃用DME对供油系的特殊要求。详细介绍了既能保持DME处于液态,又能将DME泵送到高压喷油泵中的新型二甲醚钢瓶-热力泵。阐述了该热力泵的设计要求及试验研究的方法。     

单片机在建筑机械中的应用

微机控制螺旋钢箍机所加工成型的螺旋型钢箍,能够提高建筑物的抗震性能。本文开创性地将微型计算机用于螺旋钢箍机的控制,设计了基于单片机的螺旋钢箍机数字控制系统。具有动态显示、语音报警等功能,可扩充性强,易维护,抗干扰性好,操作简便,该技术为钢箍加工自动化开了先例。     

Sheet Bulk Forming of Thin-Walled Components with External Gearing through Upsetting Using Controllable Deformation Zone Method

正Healthcare mechatronics is a typical multidisciplinary field involving machinery, medicine, computer, and automation, which has been widely applied in respiratory therapy, urology robot, rehabilitation exoskeleton, artificial heart, etc. Existing progresses has some defects in modeling, design and implementation of healthcare mechatronics. erefore, exploring new design theories, key technologies and typical applications is an e ective to promote the rapid development of this field.     

绿色暴露作为促进健康服务的评估指标与机制研究综述

绿色暴露与健康服务联系紧密,是促进健康服务的重要一环。基于Web of Science和中国知网数据库,对现有研究成果进行了总结,以健康服务中环境服务与个体健康为研究重点,总结绿色暴露相关指标,研究其促进健康服务的机制,讨论绿色暴露影响健康服务的现实指导意义。不仅总结了绿色暴露促进健康服务的静态指标,还关注了绿色暴露的动态指标,更精细化地反映人在一定时间内绿色暴露状态的动态变化,更充分地表达绿色暴露与人的密切关系。     

A Colorimetric Artificial Olfactory System for Airborne Improvised Explosive Identification

The detection of ultralow or nonvolatile target analytes remains a significant challenge for artificial olfactory systems even after decades of development, which severely limits their widespread application. To overcome this challenge, an artificial olfactory system based on a colorimetric hydrogel array is constructed for the first time as a universal representative. As an effective extension of conventional artificial olfactory systems that integrates the merits of its predecessors, the proposed system accurately mimics olfactory mucosa and specific odorant binding proteins using hydrogels endowed with specific colorimetric reagents for the detection of hypochlorite, chlorate, perchlorate, urea, and nitrate. Therefore, the proposed system is capable of detecting and discriminating between these five airborne improvised explosive microparticulates with a detection limit as low as 39.4 pg. Additionally, the system demonstrates good reusability over ten cycles, rapid response time of ≈0.2 s, and excellent discrimination properties, despite significant variation. This proof-of-concept study on colorimetric artificial olfactory systems yields a novel strategy for the direct and discriminative detection of nonvolatile airborne microparticulates.     

剪切修正GTN模型在拉剪变路径加载问题中的适用性

为评估含剪切修正项GTN模型在非比例加载条件下的适用性,以一组缺口圆棒试样的拉剪变路径加载试验结果为依据,运用有限元软件ABAQUS/Explicit模块及用户子程序VUMAT进行平行仿真分析。研究结果表明:在大预变形下的拉剪变路径加载条件下,增长的预应变会加快后续拉伸过程中孔洞的增长率,导致材料提前断裂。同时,结合断口宏观与微观形貌分析,研究了非比例加载过程材料的损伤演化机理。AA2024铝合金在拉剪变路径加载条件下的断裂机制为拉-剪混合断裂,随着预扭作用的增强,剪切断裂逐渐取代拉伸断裂成为主导的断裂模式。     

烧结法生产中熟料窑的余热利用探讨

山东铝业公司是能源消耗大户，也是蒸汽耗用大户。本文论述了利用窑尾废气生产蒸汽的可行性，值得山东铝业开发利用。     

商业银行会计电算化进程中应妥善解决的几个问题

当前,我国商业银行的会计电算化进程如火如荼,但不可讳言,其间蕴藏着一些突出的问题,主要表现在对银行内部对会计电算化的认识尚未完全到位,会计人员的素质无法完全满足会计电算化的要求,会计电算化在不同类型单位的发展不平衡,因此会计电算化的综合功能未能全面发挥,会计电算化的后续管理工作有待完善。