工业互联网与制造业数字化转型

在数字经济蓬勃发展的背景下,工业互联网与企业数字化转型成为社会发展的重点。通过数字化转型,制造企业以更高的成本效率赢得竞争。工业互联网则是支撑制造业数字化转型的最重要基础设施和发展路径,成为制造业智能化必需的网络环境和基础设施。未来,在制造业数字化转型过程中,应注意针对企业的不同特征,设计差异化的策略并关注中小企业在数字化转型过程中存在的困难,为中小企业开辟数字化转型道路。     

面向电子制造业的集成MES应用技术的研究

随着电子制造业的快速发展,智能信息化技术在电子制造业中也得到了普遍的应用.电子制造业不仅要提高产品的质量,而且还要在生产过程中对客户需要的相关的数据进行收集,数据报告是客户对电子制造商产品制造情况进行考核的一个重要的条件.本文对电子制造业中电子产品制造服务的业务需求进行了分析,构建了多种技术相融合的面向电子产品制造业的集成MES应用模型,对MES系统的具体功能进行了分析,对面向电子制造业的集成MES的应用技术进行了分析和研究.     

电子通信设备制造业创新管理模式研究

随着经济社会的快速发展,我国电子通信设备制造业取得了显著的突破。目前我国电子设备高端产品的研发能力还比较弱,在国际上的地位还有待提高。加强企业的创新管理,提高电子设备制造业整体国际竞争力是业内人士所面临的重要问题。文章通过阐述我国电子通信设备制造业的发展现状,分析了电子通信设备制造业在发展中存在的问题与不足,针对如何加强企业创新管理给出了合理化建议。     

数字化背景下无锡制造业创新发展政策研究

为对无锡地区制造业发展做出综合评价,文章通过规模、研发、外商投资等指标对无锡制造业总体发展情况进行分析;从规模潜力、创新潜力、贸易竞争力等维度对无锡地区与国内其他5个区域制造业发展水平进行比较;基于制造业数字化发展趋势,最终提出无锡地区制造业转型升级发展的对策。     

面向制造业2025中德职业教育的比较

中国制造2025是中国制造业产业的发展战略,面对中国高速发展的产业环境,应当培养新时期下高素质技术技能人才。德国职业教育具有悠久历史,支撑德国经济和产业发展,在中德制造业高速发展的同时,应当在中德职业教育比较基础上,学习德国为制造业产业培养技能型人才的经验,推动中国职业教育改革适应中国制造2025需要。文章对中德职业教育就制造业方面进行了比较。     

离散制造业客户订单变更系统研究与开发

为了解决传统ERP(Enterprise Resource Planning,企业资源计划)对于客户订单变更管理的问题,提出了一套针对于客户订单减产变更的算法模型以及设计方案.首先研究了离散制造业的生产过程,分析出客户的需求往往与其取得的利润相关,企业应当及时响应客户提出的客户订单变更请求,减少企业的相关损失.此外,客户订单变更也涉及到已经排产的客户订单和库存的改变.通过对某一液压制造企业进行实地考察,深入地研究和分析了对于不同阶段、不同种类的变更对企业造成的成本影响,并给出了相应的响应措施,验证了该算法的可行性和有效性.     

自动化技术在汽车制造行业中的应用探讨

近些年我国生产力的快速增长,带动了汽车制造行业的发展,汽车已成为人们主要的交通工具。国民大量的需求迫切要求采用自动化技术缩短整个生产进程。与传统的人力资源相比较,高精确度和高强度的劳动工作也要求采用自动化技术执行。自动化技术是科学进步的标志。我国自动化技术应用的范围越来越广,汽车制造业作为我国的市场经济命脉,应用自动化技术自然也不例外。自动化技术在汽车制造行业中的广泛应用使其成为最受世界关注的焦点。     

MEMS传感器技术产业与我国发展路径研究

随着全球跨入万物互联时代,传感器产业迎来爆发式增长。MEMS传感器因其体积小、灵敏度高、可靠性强的优势逐渐占据主流。当前,我国在MEMS传感器设计、制造、封装、测试等关键产业链环节均取得了长足的进步,但与国际先进水平相比,仍存在诸多差距与短板。根据当前产业发展现状,建议我国在关键技术攻关、产业协同发展以及加大政策支持等方面发力,进一步带动我国MEMS传感器产业全面提升。     

More on China [technological revolution]

This paper provides a list of references relating to the technological advances in China in the fields of Internet and censorship, consumer electronics, intellectual property, transportation, environment and conservation, and semiconductors.     

浅谈机械电子行业的科技创新

在社会和经济发展的带动下,对机械电子行业部门的产品提出了新的要求,科技创新是推动我们的机械电子工业快速发展,提高其竞争力重要前提。研究表明经济各方面的发展是与机械电子行业形影不离,息息相关,但随着经济的快速发展,机械电子工业也面临着一些严重的问题和挑战。下面对科技创新在机械电子行业中所发挥的作用进行阐述和分析,希望能够为我国的机械制造的发展和创新贡献一份力量。     

Short-channel effects on the input stage of surface-channel CCD's

A detailed study of transient signal charge injection into surface-channel charge-coupled devices using a two-dimensional computer model including the source diffusion and the self-induced and fringing field effects has been carried out. The total delay time required to inject a packet of charge into CCD's for a range of device structures was determined. It is found that the maximum clock pulse frequency of operation is determined by the input delay time and not by the speed of charge transfer which is normally assumed. The results of this study are compared with results obtained using a one-dimensional simulation model for charge injection into CCD's. Experimental justification of the one-dimensional model is provided. With the aid of this analysis a design expression for the intrinsic input delay (the delay associated with the fill portion) for short gate surface-channel CCD's is derived and presented in this paper. It is also shown that for short gate devices (L < 8µm) the input delay time due to scooping is about two to four times the intrinsic delay.     

高端装备制造业数字化转型的思考

随着新一代信息技术与先进制造技术的深度融合,智能制造成为新时代高端装备制造企业转型升级的重要途径。通过分析在数字经济浪潮下,高端装备行业的趋势和企业发展过程中面临的机遇与挑战,提出了通过智能制造实现制造业的转型发展道路的思考,并就企业如何推进智能制造规划和建设提出了具体的建议。     

Surface and geometry effects on large signal base input voltage and input resistance of junction transistors

A design theory for large signal base input voltage and input resistance of junction transistors is presented with emphasis on the effect of surface recombination and transistor geometry. Two-dimensional distributions of minority carrier density and electric field are obtained for the separate portions of the base region. These distributions are then expressed in terms of emitter current and are used to derive expressions for the large signal base input voltage and resistance. The dependence of carrier distribution on surface recombination velocity and transistor geometry is illustrated by curves. The theory is corroborated by a series of experiments carried out with p-n-p power transistors. The parameters varied are surface recombination velocity (by baking), emitter diameter, base ring diameter, dice thickness and base region resistivity. The measured base input voltage and resistance are plotted and compared with calculated values based on the theory presented. Good agreement is found between calculated and measured values. The results deviate in several interesting respects from the values predicted by the small signal or low injection level theory. Based on this theory, design considerations for the large signal input voltage and input resistance are discussed.     

制造业数字化车间的建设研究

随着科学技术的快速发展,制造业也逐渐向着数字化、智能化的方向发展。在传统的制造业车间建设过程中,主要采用经验型的管理模式,需要花费大量的人力物力进行合理化的管理。现如今,先进的信息化技术运用于在制造业车间的建设,以信息作为车间管理的基础,对整个车间的资源进行整理,同时不断优化车间管理的流程,进而整体性地提高了制造业车间的效率和能力。文章对制造业数字化车间的建设进行了详细的分析和探讨。     

Structural complexity effects on transverse propagation in atwo-dimensional model of myocardium

A thin sheet of cardiac tissue was modeled as a set of resistively coupled excitable cables with membrane dynamics described by the modified Beeler Reuter model. Transverse connections have a resistance Rn and are regularly distributed with a spacing delta on any given cable, to provide alternating input and output junctions. Flat wave longitudinal propagation corresponds to propagation along a single continuous cable since all units of the network are functionally isolated due to the absence of transverse current flow. Events on a given cable during flat transverse propagation include electrotonic spread of potential from input to output junctions, action potential initiation at input junctions, and collision at output junctions. The propagating two-dimensional transverse wavefront is an undulating transmembrane potential surface with highs at the input junctions and lows at the output junctions. The action potential upstroke is also modulated in a periodic manner with minimum and maximum Vmax at the input and output junctions respectively. Thus, the network is capable of a diversity of dynamic behavior spatially distributed in relation to the specific pattern of transverse connections chosen. Overall, the behavior of the network model is in good agreement with available structural and electrophysiological data on myocardium. In addition, this network topology allows to handle more easily parameters governing propagation and to avoid very large matrices which are costly in computational effort and overall computer time.