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深圳长城开发科技股份有限公司;上海远驰专修学院;福州高意科技有限公司;广东品胜电子股份有限公司;深圳市日达高科电子有限公司……     

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深圳市卓力达激光科技有限公司，斯比泰电子（深圳）有限公司，深圳市新力达电子集团有限公司，瑞德电子（深圳）有限公司 联亚新科印锡（深圳）有限公司，万利达集团有限公司，香港科电工程有限公司上海代表处，杭州士康射频技术有限公司，东莞创宝达电器制品有限公司，上海建伍电子有限公司，     

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Indium hires Senior/Sales Engineer；深圳市创盛自动化设备有限公司；成都市景旺电子有限公司；深圳市凯尔文电子化学品技术公司……     

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BarcoLeyard, founded in March 2003, is a joint venture between Barco N.V. （Belgium） and Beijing Leyard Electronic Technology Co. Ltd.. It is mainly devoted to the design, production, sales, installation and after sales service of both indoor and outdoor large scale full color LED solutions., Barco. N.V., the majority shareholder, is famous worldwide for the manufacturing of high precision and high quality electronic products such as projection system, display system, industrial automation monitoring system, etc.. BarcoLeyard has successfully completed the production line transfer from its Headquarters in Belgium, and at present, it has developed into the production and R＆D base, and the competence center in Asia Pacific re qion.     

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深圳市贝特数控技术有限公司 公司简介 深圳市贝特数控技术有限公司是一家集PCB板测试和钻铣设备及软件之研发、制造、销售及服务于一体的高科技公司。总公司成立于2003年，座落在线路板产业集中的深圳宝安区，产品畅销于华南、华东、华北地区并远销海外，在珠三角的中山市和惠州市及长三角的苏州温州市设有办事处。     

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金峰电路（惠州）有限公司 金峰电路（惠州）有限公司是一家专业生产高/中档双面及多层印制线路板的离新技术合资企业，成立于1999年。公司因业务发展和规模扩大需要，诚邀具有潜质及经验丰富的专业人才加盟，共创辉煌。     

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珠海科凌电子有限公司（VIP会员） SMT技术员 职位描述： 性别不限，一年以上SMT行业工作经验，熟悉松下202、JUK12050、YAMAHA100II机器的操作。     

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京荣达科信电子技术有限责任公司（VlP会员）SMT品质主管职位要求：1）高中以上学历：2）对焊接各岗位要求熟知,两年以上相关工作经验。SMT工程师职位要求：1）高中以上学历：2）对焊接各岗位要求熟知．一年以上相关工作经验。SMT操机员职位要求：1）高中以上学历。2）训练操作三星或YAMAHA贴片机,会编程．可以解决日常生产中出现的常见问题。     

网络招聘信息抽取与分析系统设计

为了解决国内网络招聘网站信息量大,求职需耗费大量时间精力的问题,文章基于Flask框架设计并实现了网络招聘信息抽取与分析系统。系统根据用户求职意向,通过爬虫实时采集招聘信息并定向分类,为不同用户匹配岗位,同时,将用户抓取的历史信息存储进数据库,方便用户浏览历史记录和定制招聘信息列表。系统过滤大量无用信息,使求职者更便捷地获取有效信息,提高求职效率。     

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永捷电路版（青岛）有限公司公司简介公司座落在美丽的山东青岛,属于外资公司。永捷电路版有限公司在华北的生产工厂,主要生产单面线路板。公司成立于2001年,依托技术创新和市场开拓,已跻身于中国北方最大的单面板生产厂,公司发展前景广阔,订单较多,现向全国招聘从事线路板行业的人才,工厂发展迅速,待遇优厚,能为职员提供良好的发展空间,欢迎有志向北方发展的人士加盟。     

Learning-based scheduling in a job shop

A common way of dynamically scheduling jobs in a manufacturing system is by means of dispatching rules. The problem of this method is that the performance of these rules depends on the state the system is in at each moment, and no rule exists that overrules the rest in all the possible states that the system may be in. The system’s state is defined by a set of control attributes. It would therefore be interesting to use the most appropriate dispatching rule at each moment. To achieve this goal, a scheduling approach which uses machine learning is presented in this paper. By means of this technique, by analysing the previous performance of the system (training examples), a set of heuristic rules are generated that can be used to decide which is the most appropriate dispatching rule at each moment in time. This approach is applied to a job shop configuration. The results demonstrate that this approach produces an improvement in the performance of the system when compared to the traditional method of using dispatching rules.     

Design of a Ka-band gyro-TWT for radar applications

The design of a Ka-band gyrotron traveling wave tube (TWT) amplifier capable of operating over a wide range of peak powers and bandwidths is presented. The amplifier operates in the TE₁₁ mode at the fundamental cyclotron harmonic. Instantaneous bandwidths in the range of 2.5 to 3.9 GHz (at 1 dB below saturation) with corresponding peak powers between 92.2 and 57.9 kW can be achieved by simply adjusting the mod-anode voltage of the electron gun. The corresponding gains range from 57.1 to 36.0 dB. The design performance is obtained with a high quality, 6 A, 70 kV electron beam generated with a double-anode magnetron injection gun. This wide range performance capability in the design is achieved via the use of the distributed loss approach in the interacting circuit, which also guarantees zero-drive stability. A diffractive loading scheme is employed in the lossy section of the circuit to ensure high average power operation of the amplifier     

C++, a better language for engineering applications

In this review, we show the features of C++ that make it superior in comparison with other languages. Use of data hiding and objects are an important way to improve the quality of the software that is produced, because the final product is easier to develop, maintain, document, and upgrade. Because of the overloading mechanism, the elegance of some notations-such as in the example of the product among vectors and matrices-is now available, even when writing a computer program. In addition, the Standard Template Library provides a huge set of templates that save a great deal of time in the development of software. Here, only the features of C++ that are relevant to engineering applications have been briefly introduced with some examples     

Accord: a programming framework for autonomic applications

The emergence of pervasive wide-area distributed computing environments, such as pervasive information systems and computational grids, has enabled new generations of applications that are based on seamless access, aggregation, and interaction. However, the inherent complexity, heterogeneity, and dynamism of these systems require a change in how the applications are developed and managed. In this paper, we present a programming framework that extends existing programming models/frameworks to support the development of autonomic self-managing applications. The framework enables the development of autonomic elements and the formulation of autonomic applications as the dynamic composition of autonomic elements. The operation of the proposed framework is illustrated using a forest fire management application.