华北平原农村储粮技术优化集成

根据在华北平原三省(河南省、河北省、山东省)“十五”国家科技攻关重大项目“粮食丰产科技工程”核心示范区的调研,针对目前农户储粮存在的普遍问题,提出农村储粮实用技术优化集成、农户储粮推荐装具和农户储粮中适用的化学药剂,这对提高我国农村储粮整体水平,提高农民的生活水平,为国家粮库提供高品质粮源,增强我国粮食的国际竞争力具有重要的意义。     

Dynamic Simulation for Hydraulic Pressure AGC of Rolling Mill

AGC control technology is one of the key techniques used in modern rolling mill, the effect of which has influence on the accuracy of the product. On the base of analysing system composition and dynamic characteristics of the main dynamic emelent, a danamic simulation model is put forward,and then dynamic simultion for the hydraulic AGC system of 3340 rolling mill is implemented. Then, it lays a foundation for the design of rolling system and the dynamic simulation of the rolling process.     

中国家具产业国际竞争力研究

中国成为世界家具生产和出口大国。正确评价中国家具产业的国际竞争力,分析其影响因素,对提升中国家具产业竞争力有着重要意义。该文利用Comtrade数据并经整理,使用优势变差指数、国际市场占有率、贸易竞争指数、显性比较优势指数四个指标,对1992—2006年的中国、加拿大、德国、意大利、马来西亚和美国的家具产业竞争力进行比较,得出中国家具产业具有较强的国际竞争力这一结论。运用迈克尔·波特“钻石模型”对影响中国家具产业国际竞争力的关键因素进行深入分析,提出了开拓国外木材市场,加快森林认证,狠抓创新等提升竞争力的建议,从而实现中国家具产业的可持续发展。     

基于区块链技术的特色农产品质量供应链设计研究：以“门头沟京白梨”为例

针对不良经济活动导致特色农产品品牌严重受损、传统农产品质量追溯技术数据易被篡改等问题，研究设计基于区块链的质量供应链技术，有效发挥追溯技术在保障特色农产品质量供应链中的作用。本研究以“门头沟京白梨”为例，系统阐述北京市门头沟区‘京白梨’产业现状及特色农产品质量供应链存在的问题，分析区块链应用于特色农产品追溯的技术可行性。基于区块链技术分布式存储、去中心化和不可篡改性等特点，设计了“门头沟京白梨”质量安全可追溯体系的总体构架，基于区块链的技术架构，阐述了在种植、仓储、流通、消费和监管等环节质量信息全程记录和追溯管理的实现途径，以期为构建基于区块链的特色农产品质量安全追溯技术与实践提供支持。建立的特色农产品质量供应链体系，将会使特色农产品品牌和质量得到更加有效的保护、监督和管理。     

浅析热带果蔬加工与贮藏环节对产品质量安全的影响

分析了我国热带果蔬加工和贮藏技术现状,从技术层面概述了热带果蔬加工与贮藏环节可能存在影响产品质量安全的因素,提出了消除影响热带果蔬产品质量安全因素的措施。     

Design of the Intelligent Alarm System in Controlling the Automobile Speed

The alarm system in controlling the automobile speed is presented, without change of the original structure, and the design scheme of the system implements sampling, measurement, computing, real-time alarm and delay-time control for the automobile speed according to the safety of the automobile driving. Then, the speed is randomly stored so as to insure the correct data and to effectively analyze the data. Especially, the key techniques of the speed measurement and the refresh storage are pesented in datail in the system.     

储粮病虫综合防治

在储藏产品保护中，化学防治是一项必需的防治技术，由于害虫对药剂抗性的发展以及药剂残毒和对环境的影响等因素，降低了化学防治的作用，有必要进一步研究改进，并通过分析经济损害水平和经济阈值模式来合理实施化学防治。综合防治或有害生物综合治理是储藏物保护的一个方向，在实践中，已有采用各项措施协调配合防治储藏物病虫的经验，值得进一步总结，更好地贯彻“以防为主、综合防治”的储粮保扩方针。     

果蔬通风预冷技术研究进展

预冷是现代果蔬流通体系的重要内容，也是冷链流通的首要环节。它可以迅速排除果蔬采后的田间热，降低呼吸作用，延缓其成熟衰老的速度，提高贮藏寿命。通风预冷因其适应性广、投资和运转费用少，易于在生产上推广应用，是较为实用、有效的预冷方法。介绍了预冷保鲜的作用和方法，综述了通风预冷技术的研究与发展状况，提出了发展预冷环节需要考虑和解决的问题。     

Application of Index Evaluation Method: an Interior Integrated Evaluation to Business Halls of China Construction Bank in Shenzhen

From the view of clients and staffs of China Construction Bank in Shenzhen,through establishing comfort index by Likert scale,an integrated evaluation on the comfort of the business halls is carried out by questionnaire.It was shown that there were several factors affecting the interior design: for clients,the sense of comfort involved temperature,atmosphere quality,illumination,dimension of furniture and spaciousness etc.,but the staffs more cared for the crowded degree of indoor environment and the comfort of furniture.The research shows that the Methods of Index Evaluation are easy for handling and transverse comparison.     

微波加热技术在冷库融霜中的应用

基于微波的加热特点及能量分析,简述了微波加热的技术特性,探讨了微波加热技术应用于冷库融霜的可行性。介绍了微波加热技术辅助热氨融霜的设计方案,并指出今后微波融霜系统的研究方向。     

Design and Realization on Remote Condition Monitoring System for Feeding Oil Pump

In view of the actuality of the feeding oil pum monitoring,the network technology,the database technology and the Dot Net remote technology are integrated nimbly to construct the remote condition monitoring system for feeding oil pump,which has many functions such as the real-time data monitoring and alarm,real-time monitor data storage remote monitoring,network data sharing,fault analysis,and so on.The whole construction design of the system and the realization of its sub function are given.The worker's intensity of labor,the maintenance cost and the accident occurrence rate of the feeding oil pum were dramatically reduced when the system was applied to the oil storeroom successfully.     

Collaborative Levels and Effecting Factors Analysis for Web-based Product Development

The collaborative levels in modem web - based product development processes are diversed in a large degree. However, current researches are lack of systematic approaches to analyze the appropriate level of the collaboration. Aiming at the problem, the collaborative levels and effecting factors are studied in the paper. First, a primary framework of the effecting factors analysis is proposed, which defines the input, output, and components of the effeeting factors analysis. Next, a collaboration hierarchy model is set up, which is constituted by message level, data level and application level. Based on the model, the effecting factors of collaboration levels are analyzed systematically from technology, organization and business aspects. Detailed indices are abstracted from these aspects and an evaluation factors set is formed systematiclly. According to the framework, hierarchy model, and the factors set, a methodology for factors evaluation and analysis is developed, which contains analytical hierarchy process, fuzzy comprehensive evaluation method and gap analysis method. The methodology has characteristics of quantitive analysis, easy to oprerate, and optimization support capability. A case study is provided to illustrate the analysis process based on the application of the methodology in a collaborative product development project of a furniture enterprise. The case study shows that the methodology can help enterprises to determine the collaboration level effectively, and can also find out the critical factors which impact the collaboration on a large extend. As a result, the develop process, working efficiency and the outcome of the collaborative project can be highly improved.     

基于区块链的农产品溯源：优势与挑战

随着消费者对农产品质量安全的要求不断提高,快速响应、高效控制、安全保障成为现代农产品安全领域的重要课题。由于传统溯源系统存在原始信息少、信息不透明和可靠性差等问题,消费者对农产品溯源技术并不信任。且各组织之间互不信任,信息断层现象时常发生,出现问题后职责追溯困难,安全管控的效果难以满足社会需求。区块链技术的可追溯性、不可篡改和去中心化等特点,可以很好的解决传统溯源系统的缺陷。区块链作为一项新兴技术,在农产品溯源方面具有巨大的潜力。然而,基于区块链技术的农产品溯源系统的优势、挑战和亟需解决的问题,还没有得到充分探讨。本研究以大米溯源系统为例,提出了基于区块链技术的农产品溯源系统的框架设计。详细介绍了如何通过物联网技术获取大米的供应链数据信息。最后,分析了基于区块链技术的农产品溯源方法的优势和挑战。本研究为研究人员和从业人员提供了基于区块链技术的农产品溯源系统的宝贵信息,并对改善农产品可持续性产生了积极的影响。     

机械通风降温效果的数值评估

地槽通风是机械通风的常用形式,是保证粮食安全储存和保持粮食品质的重要措施.常规的试验研究测量方法难以全面和准确评估设计的有效性和合理性.本研究利用计算机流动模拟的方法(CFD)对常用的U形地槽通风方案进行了数值研究,获得了风道中流速和压力分布的关键性数据,发现了与实际现象相符合的通风死角区域,同时又发现了常规测量手段中难以探测到的风道之间存在的通风薄弱区域,在理论上分析了存在通风死角和风道压力损失的原因.计算流体力学研究方法的运用可成为机械通风优化设计研究的有效工具,为今后机械通风应用技术的发展提供针对性和实用性的依据.     

Design Quality Review System Based on Networks

Design quality review of product is an effective method to improve product quality. The inefficient traditional design review is not accord with modern yield requirement. The multiple system truss of design review is constructed based on the primary characteristics and the requirements of design review and the network technology. The mode of communication between client and server and the flow of design review system based on networks are expatiated. According to different phases of reveiw,the universal quality index system for evaluating the product design is established and the design review system based on networks is realized by NetMeeting.     

粮食仓储行业HACCP研究应用

我国是一个人口大国,而粮食是我国人民的主食,也是食品加工的重要原料,其储藏质量安全是食物营养链安全必不可少的一环.随着人民生活质量的提高,粮食的质量品质和食品安全等问题也逐步成为人民关注的焦点.随着四项储粮新技术在我国仓储行业的推广应用,我国的粮食储藏技术也上了一个新的台阶.然而,对于粮食的危害分析与质量控制却相对薄弱,缺乏对相应的关键控制点的研究,不能适应现代储粮技术与食物营养安全的可持续发展.为此,有必要在基于现代储粮技术与食物安全相结合的基础上,引入HACCP体系,对粮食在收获后的每一环节(入仓、储藏、出仓)进行全程危害分析与质量监控,建立一整套适用于我国粮食储藏环节的质量安全控制管理体系.     

区块链技术及其在农产品质量安全追溯应用的研究进展

农产品质量安全是一个备受关注的公共卫生问题,追溯应用已成为保障农产品质量安全的有效手段。确保溯源数据的真实性和安全性,成为追溯应用研究的重点和亟需解决的问题。区块链是一个综合多种技术并确保完全去中心化点对点系统完备性的完整技术方案,具有去中心化、透明化、去信任和数据不可篡改等优点,不受传统中心式技术的制约,在农产品质量安全追溯应用上有很大的发展空间。文章概述了区块链技术的基础架构、关键技术及其在追溯应用上的特点,以及区块链技术和农产品质量追溯的内在关系;通过分析基于公有链、联盟链和改良模式的农产品质量安全追溯研究进展和技术特点,总结了区块链技术在农产品质量安全追溯研究中存在的问题,结合区块链发展趋势,提出了注重横向技术融合、加强监测数据信息上链、建立农产品追溯激励惩罚机制等研究展望。     

豫北钢板平房仓隔热控温储存大豆应用试验

严格按照施工工艺要求,通过对钢板仓内表面喷涂5cm厚的聚氨酯发泡储存大豆试验,夏季仓温相比砖混高大平房仓要低1～2.8℃,豆堆上层粮温低0.8～3.0℃,大豆储存品质也较砖混高大平房仓效果要好,证明了豫北地区钢板平房仓隔热控温储存大豆的可行性。