地质数据分析的新方法

本文提出利用人工神经网络和神经网络专家系统的方法分析地质数据，从而更好地解决地质数据处理中的非线性问题。提高地质数据处理的精度及可靠性，为分析地质数据提供一种新的方法手段。     

低松比片状银粉低温聚合物导体浆料的研究

采用低松比片状银粉为导电相制备低温聚合物导体浆料,讨论了片状银粉松比及其含量、聚氨酯(BT1010)树脂含量、缔合型增稠剂(2026)含量、混合溶剂(NBA+CYC+783慢干水)含量对浆料性能的影响,结果表明片当状银粉质量百分含量为40%,聚氨脂(BT1010)树脂含量为24%,缔合型(2026)增稠剂含量为16%,混合溶剂(NBA+CYC+783慢干水)含量在16%时,银浆的性能最佳。     

云计算中的群体智能与不确定性知识表示

The lasting evolution of computing environment, software engineering and interaction methods leads to cloud computing. Cloud computing changes the configuration mode of resources on the Internet and all kinds of resources are virtualized and provided as services. Mass participation and online interaction with social annotations become usual in human daily life. People who own similar interests on the Internet may cluster naturally into scalable and boundless communities and collective intelligence will emerge. Human is taken as an intelligent computing factor, and uncertainty becomes a basic property in cloud computing. Virtualization, soft computing and granular computing will become essential features of cloud computing. Compared with the engineering technological problems of IaaS (Infrastructure as a service), PaaS (Platform as a Service) and SaaS (Software as a Service), collective intelligence and uncertain knowledge representation will be more important frontiers in cloud computing for researchers within the community of intelligence science.     

A novel method for the synthesis of polyamide 6 magnetic microspheres

Polyamide 6 (PA6) magnetic microspheres were firstly prepared via successively in situ polymerization using phase inversion technology of polymer pairs polyamide 6/polystyrene (PA6/PS) at extremely low PS content. The properties of PA6 magnetic microspheres, such as morphologies, diameter size distribution, magnetic properties, thermal stability, and the functional groups of the magnetic microspheres, were investigated by different techniques (i.e. SEM, TEM, DLS, VSM, FTIR, and DSC). The results indicated that the diameter distribution of PA6 magnetic microspheres was narrow, and the mean diameter size was about 7.7 μm. The saturation magnetization of magnetic microspheres reached 12.50 emu/g. Furthermore, the magnetic microspheres had abundant functional groups and better thermal stability.     

Non-isothermal crystallization of polyamide 6 matrix in all-polyamide composites: crystallization kinetic, melting behavior, and crystal morphology

The difference in the melting points of polyamide 66 (PA66) fiber and polyamide 6 (PA6) film permits the preparation of all-polyamide (all-PA) composites by film-packing. Good interface performance and integrated consolidation structure in this all-PA composite are contributed to the similar chemical composition between PA66 fiber and PA6 matrix. In this paper, the non-isothermal crystallization kinetics and melting behaviors of PA6 matrix in all-PA composite are studied by differential scanning calorimetry (DSC), in which the modified Avrami equation, Ozawa model, and Mo equation combining Avrami and Ozawa equation are employed. It is found that the Mo equation exhibits great advantages in treating the non-isothermal crystallization kinetics for both neat PA6 and PA6 matrix in all-PA composite. The crystal morphologies of single PA66 fiber–PA6 composite by polarizing microscope (POM) clearly show a transcrystallinity layer of PA6 around PA66 fiber that proves a remarkable nucleation effect of PA66 fiber surface on the crystallization of PA6 matrix.     

反相液相色谱法测定β-胡萝卜素

采用反相液相色谱法测定食品中的β—胡萝卜素含量，Nova-parkC18柱，纯甲纯为流动相，流速1．8ml/min，柱温40℃，波长450nm，外标法测定。方法平均回收率98．3，RSD=3．0％(n＝5)，线性范围1—42μg／m1。     

通过式皮革挤水机的研制

本文详细地介绍了一种性能优良的皮革挤水机GJ3A2—180的设计和工作原理.     

如何确保工程质量的浅见

凡产品生产均要求确保质量 ,工程建设更不例外 ;由于工程建设投资巨大 ,效益久远 ,故对它的质量要求更高 ,绝不能有丝毫的草率、马虎。工程建设竣工交付使用后 ,绝大多数使用周期均相当长 ,故其质量优劣不仅会关系到当代 ,甚至要涉及到子孙后代。工程建设粗制滥造是一种犯罪行为 ,因为它轻则缩短了工程使用寿命 ,重则会酿成惨痛的人身伤亡。施工乃是将设计图纸变为现实的过程 ,故设计图纸的重要性则可想而知。施工前 ,一定要将设计图纸 (包括地质资料 )详详细细看透 ,对设计图纸上的问题 ,一定要在施工前发现 ,设计图纸不仅工程技术人员要熟…     

METHOD FOR ALONG-TRACK DUAL-ANTENNA AIRBORNE RADAR’S GMTI WHEN THE ATENNA ERROR CHANGES PULSE TO PULSE

This paper presents a joint method of Doppler Beam Sharpen (DBS) imaging and Signal Subspace Processing (SSP) to achieve Ground Moving Target Indication(GMTI) for alongtrack dual-antenna airborne radar. When the error of the two antennas (also refers to channels) changes pulse to pulse, the method SSP is used to precisely calibrate the two antennas‘ DBS images, then to detect the ground moving targets in the difference image of the two calibrated images. The method DBS-SSP is proved to offer performance improvement on the actually measured data and simulated data.     

A New Autom ated Fingerprint Identification System

A new automated fingerpring identification system is proposed.In this system,based on some local properties of digital image,the shape and minutiae features of fingerprint can be extracted from the grey level image without binarizing and thinning.In query,a latent fingerprint can be matched with the filed fingerprints by shape and/or minutiae features.Matching by shape features is much faster than by minutiae.