Study on rapid determination method of ash content in wheat flour based on stochastic forest regression model [PDF]
ObjectiveTo achieve rapid and accurate determination of ash content in wheat flour.MethodsBy preprocessing wheat raw materials and analyzing key influencing factors such as milling time and conductivity in depth, these factors were introduced as ...
CHEN Caihong, LIU Yanqun, XIAO Fugang
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Gaoya dianqi, 2016 大功率晶闸管换流阀试验的目的在于验证其符合设计准则与标准要求,并确保晶闸管换流阀在正常与故障条件下均能完成即定的工作目标而不致于损坏或影响到所接入的电网系统。合成试验回路法因接入方式灵活、环保节能等优点成为各试验机构及生产厂家首选的试验方法。笔者基于合成试验回路介绍了晶闸管换流阀特殊试验项目的实施方法并比较了不同方法之间的差异。得出断续直流电流试验中,电流源法等价性好,但电压源法严酷性及零电流持续时间的可调节性好;暂态欠电压试验中,电压源法的等价性及可控性优于水电阻法 ...
张长春 +9 more
doaj
The Systemic Evaluation and Clinical Significance of Immunological Function for Advanced Lung Cancer Patients [PDF]
, 2010 Background and objective The actual evaluation of immunological function is significant for studing the tumor development and devising a treatment in time.
Hui ZHANG +12 more
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A study on enhancing accuracy of iodine sensitivity test
Huli yanjiu, 2005 [目的]提高碘造影剂过敏试验的准确性,探讨其试验方法和结果判断标准。[方法]3840例用泛影葡胺行影像检查者,常规行皮内试验,均按新标准和旧标准进行判断,比较两种判断结果阳性率及假阳性率的差异。[结果]皮试旧标准判断阳性率75.39%,假阳性率93.18%;新标准判断阳性率7.73%,假阳性率25.29%;两种判断方法的阳性率及假阳性率比较均有统计学意义 ...
王玉芹, 蒿崑, 全勇, 吴艳春
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Multicolor Melting Curve Analysis-based on Detection of Pyrazinamide-Resistant Mycobacterium tuberculosis [PDF]
, 2017 结核病是由结核分枝杆菌感染人体的慢性传染性疾病。2015年新增患病人数高达1040万，有140万人死于结核病。在众多治疗结核病药物中，吡嗪酰胺是较早发现的一线抗结核药物之一。在酸性环境下，吡嗪酰胺可以抑制巨噬细胞内半休眠结核分枝杆菌。随着吡嗪酰胺广泛使用，耐受吡嗪酰胺的结核病危害面广，因此吡嗪酰胺耐药突变检测的研究急需开展。针对上述问题，本文利用探针熔解曲线分析技术对结核分枝杆菌吡嗪酰胺耐药突变检测展开研究。 第一章绪论，首先简要概述现今世界结核病概况，再介绍耐药结核病诊断和治疗的方法 ...
李梓
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Experimental study on elastic deformation properties of geomembranes used as barriers in upper reservoir of pumped storage power stations [PDF]
Aimming at the deformation adaptability of geomembranes used as barriers in the upper reservoir of pumped storage power stations, a set of bubble inflation multiaxial tension testing equipment for geomembranes is developed.
ZHAO Hongyu, WU Haimin , SHU Yiming, YI Feng
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Gaoya dianqi, 2013 局部放电试验是目前预防和检测变压器绝缘缺陷的有效方法之一。文章介绍了以变频电源装置为试验电源在工程现场对1 000 kV变压器进行的局部放电试验。其中分析了1 000 kV变压器的性能参数及试验过程,并且对整个局放试验回路进行了适应性计算,与试验实测数据进行了对比分析,提出了放电干扰紫外定位、试验回路多端接地和试验电源加装隔离变等抗干扰措施,指出了该方法试验设备体积小、接线方式灵活等优点,认为该试验方法可以在特高压工程中推广使用。
韩金华 +5 more
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Study on steam pretreatment for simultaneous essential oils extraction combined pyrolysis catalyst loading and its influence on the products of pyrolysis [PDF]
, 2017 生物质资源由于具有存量大、环保可再生、可转化为能量密度较高的液体或气体燃料等特殊优势，使得其有望成为未来化石能源的补充或替代者。生物质快速热解是一种常用且有效的生物质热化学转化方法，利用该方法可以将生物质原料快速地转化为能量密度高且易于储存的液体燃料，即生物油。在大量研究人员不断地探索下，生物质快速热解技术已经得到了较大的发展，具备了一定的工业化应用的前景，但是，目前仍然存在着生物油品质低下、资源利用率低、投入产出效益差等问题，制约了该技术的进一步发展。本文尝试开发出一种新型的生物质热解工艺 ...
明自强
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Research and Design of Standard System for Electric Drying [PDF]
Facing the new goals of “carbon peaking” and “carbon neutrality”, increasing the electrification level of energy consumption is of great significance for ensuring food security, promoting green transformation in agriculture, and achieving energy ...
BU Fan-peng, CHENG Ling, LU Hao-peng
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