Flux-gate magnetic field sensor based on yttrium iron garnet films for magnetocardiography investigations

Technical Physics Letters - A new type of f lux-gate vector magnetometer based on epitaxial yttrium iron garnet films has been developed and constructed for magnetocardiography (MCG)...     

Comparative aroma profiles using supercritical carbon dioxide and Likens–Nickerson extraction from a commercial brand of Basmati rice

A comparative evaluation of the extraction of the aroma constituents of a popular commercial brand of Basmati rice using Likens–Nickerson extraction and supercritical fluid extraction (SFE) with carbon dioxide was carried out. SFE at 50 °C and 120 bar for 2 h provided appreciable extraction of the volatile constituents of the rice as compared with Likens–Nickerson extraction. The advantages of smaller sample size, shorter time of extraction and negligible possibility of artefacts with the SFE technique merit its use for recovery of aroma volatiles from Basmati rice. Copyright © 2003 Society of Chemical Industry     

落实科学发展观热诚服务"三农"努力推进广播电视无线覆盖工作

为了全面贯彻和落实科学发展观．进一步加强农村广播电视工作．切实解决好广大农民群众收听收看广播电视节目难的问题．国家广电总局在大力推进广播电视“村村通”工程的同时．又决定充分利用地方现有广播电视基础设施的资源。发挥高山发射台大功率无线覆盖的优势．加强中央广播电视节目在广大农村地区的覆盖工作．积极探索建立农村广播电视服务体系．更好地为广大农民群众办好事、办实事。     

基于DSP的加热炉内钢坯表面温度检测及分析系统

设计了一种加热炉内钢坯表面温度实时检测系统,以DSP为图像处理核心,采集加热炉内两幅临近中心波长的近红外辐射图像,用比色测温算法计算出钢坯表面温度。对比色测温原理、系统的硬件电路、软件流程和试验效果进行了分析。在H型钢加热炉的试验表明,系统能实时检测加热钢坯的表面温度,实时生成加热炉内温度场的伪彩图像并完成工况分析。钢坯表面温度检测的相对误差小于0.5%,满足加热炉温度控制工艺的要求,解决了加热炉内钢坯表面温度动态检测的技术难题。