超高频射频识别系统的技术研究

射频识别技术（RFID）具有广泛的应用前景，由于技术参数很难确定导致其相关应用系统开发十分困难。针对此类问题，利用MATLAB应用软件对超高频段的RFID系统进行仿真建模，分析和研究其关键技术的相关参数，以达到提供指导应用系统的开发的目的。     

现代检测技术在数控机床中的应用

介绍现代检测技术及检测装置在数控机床中的应用,详细分析位置检测装置在数控机床中的重要作用,归纳总结检测元件发生故障的原因,以达到经验共享的目的。     

工程造价专业开展 BIM 实训课程的问题及解决办法

BIM(建筑信息模型)在工程造价管理中精密、自动、可视、高效、智能的优点已经逐渐被大家所认同,本文结合自己在工程造价教学中应用BIM技术的体会,和在此过程中遇到的问题,寻找相应的解决办法,探索工程造价专业中BIM技术的应用更加便利的实训通道。     

Efficient and High-quality Recommendations via Momentum-incorporated Parallel Stochastic Gradient Descent-Based Learning

A recommender system (RS) relying on latent factor analysis usually adopts stochastic gradient descent (SGD) as its learning algorithm. However, owing to its serial mechanism, an SGD algorithm suffers from low efficiency and scalability when handling large-scale industrial problems. Aiming at addressing this issue, this study proposes a momentum-incorporated parallel stochastic gradient descent (MPSGD) algorithm, whose main idea is two-fold: a) implementing parallelization via a novel data-splitting strategy, and b) accelerating convergence rate by integrating momentum effects into its training process. With it, an MPSGD-based latent factor (MLF) model is achieved, which is capable of performing efficient and high-quality recommendations. Experimental results on four high-dimensional and sparse matrices generated by industrial RS indicate that owing to an MPSGD algorithm, an MLF model outperforms the existing state-of-the-art ones in both computational efficiency and scalability.      

合金电缆在水泥余热发电行业的应用前景

当前,水泥行业产能过剩,经营形势较为严峻,水泥生产线配套的低温余热发电工程也面临着同样的经营形势,需要进一步的开源节流。因此,在电缆的使用上,可以适当打破以铜芯电缆为主的局面,在一定范围内采用合金电缆代替铜芯电缆。在保证使用性能的同时,不但可以节约铜资源,而且可以一定程度的降低工程成本。     

GPS在矿山爆破设计及施工中的应用

利用GPS操作简单、全天候作业及高精度等特点,计算机三维模型可视化的优点,采用GPS为三维模型提供地形数据,并结合爆破设计软件的设计成果,使现场施工的布孔及验孔工序更加简单化、准确化.结果表明,使用GPS可以提高爆破技术人员的工作效率,并改善爆破效果.     

浅析机电一体化技术的应用及发展趋势

机电一体化是现代科技发展的必然结果,具有广阔的发展前景二本文简述了机电一体化技术的基本概念、应用领域和发展方向。在数控机床、自动机与自动生产线、机器人、汽车电子化产品具有十分现实的意义。并且在光机电一体化、自律分配系统化、全息系统化、生物一一软件、微型机电化是机电一体化的重要发展方向。     

Development of a Compact and User-friendly Ion Irradiation System Controlled Remotely through the Internet

A compact and user-friendly ion irradiation system controlled remotely through the Internet was developed for the execution of collaboration experiments together with researchers at remote sites. Several hardware instruments and software programs were constructed and provided for the remote control of the system and for its connection to the Internet. Surface modification and analysis experiments with this system were remotely performed through the Internet. It was confirmed from the experiments that the present ion irradiation system was precisely controlled through the Internet and could be easily and safely used for the surface modification and analysis, that the normal communication speed of around 10Mbps for the Internet was fast enough for the execution of such typical remote-controlled experiments, and also that an access to the system by a mobile phone was convenient and useful enough to check the condition of the system and experimental data.     

Radiation tolerant nano-FED biosensing for space application

A p-type polysilicon nanowire and silicon nano-channel combination based biosensor was developed, which has the potential to detect pathogens and thus protect crew safety aboard long-term manned flight programmes in high radiation space flights. This study outlines structures, which compose the biosensor, and demonstrates that the nano-device utilised herein is total dose radiation hardened. Highly doped polysilicon nanowires (30–100?nm) in nano-field-effect device (FED) were fabricated on silicon/silicon dioxide wafers and insulated with a thin polyimide layer. When the targeted gene, Escherichia coli DH5 alpha 16S rRNA, incubated on the device surface, the constant overall impedance increased or decreased depending on the electronic charge, mass and composition of the target molecule. All measurements were carried under 25 MeV S-Band linear accelerator followed by impedance measurements. Current sets of experiments show these nano-FED can form the basis of a robust, very sensitive handheld tool for pathogen detection in space application.