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Research on Preparation of Resistant Starch from Lotus Seed by Ultrasonic-Autoclaving(超声波-压热法制备莲子抗性淀粉工艺研究) [PDF]
Shipin kexue jishu xuebao, 2014 Lotus seed native starch was obtained by the wet milling method, and the ultrasonic pretreatment combining autoclaving method was applied to prepare resistant starch.
WU Xiaoting(吴小婷) +4 more
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Study on the technology of ultrasonic assisted combined extraction of saponins and polysaccharides from Polygonatum sibiricum and its hypoglycemic activity [PDF]
Objective: With the Polygonatum sibiricum as raw material, to develop a process for the combined extraction of Polygonatum sibiricum sponins (PSSs) and polysaccharides (PSPs), and the inhibitory activities of the extract and their complexes (PSSs-PSPs ...
DONG Caiwen +5 more
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A Method Study on Determination of Sediment Content in Water Samples Based on Self-made Differential Pressure Device [PDF]
, 2022 [Objective] The method for quickly and accurately measuring sediment concentrations in water samples in the field based on differential pressure was studied.
Chen Lin +5 more
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, 2003 采用多种方法从红毛藻中提取藻蓝蛋白。研究表明,组织捣碎法破碎细胞效率较高,60%饱和度硫酸铵盐析效果较好,并确定了最佳的提取工艺线路。Different methods were tested to extract phycocyanin from the red alg a Bangia fusco -pururea.It was proven that tissue -trifurcation method had the hig hest efficiency for cell frag ...
王文星, 许秀美, 郑江, 黄水英
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Zhongguo youzhi, 2023 为进一步提高辣木籽蛋白资源的开发利用，采用盐提法提取辣木籽蛋白，再采用超声波辅助酶法制备辣木籽ACE抑制肽。以水解度和ACE抑制率为评价指标，通过单因素实验探究超声波功率、超声酶解时间、超声酶解温度及料液比对制备ACE抑制肽的影响,采用响应面法对制备工艺条件进行优化。结果表明：超声波辅助酶法制备辣木籽ACE抑制肽的最佳酶解工艺条件为碱性蛋白酶添加量5.5 mg/mL、pH 9、超声波功率500 W、超声酶解时间1.7 h、超声酶解温度55 ℃、料液比1∶ 45，在此条件下制备的酶解物ACE抑制率达到78.
钟玉旺，安姝璇，王雪峰，范江平，黄艾祥，田洋 ZHONG Yuwang, AN Shuxuan, WANG Xuefeng , FAN Jiangping, HUANG Aixiang, TIAN Yang
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Gaoya dianqi, 2018 超声波法是一种非破坏性的电力设备局部放电检测方法,运用数值计算方法可以有效地分析超声波的声场特性。为明确特高压GIS局部放电超声波信号的传播特性,采用有限元计算方法仿真研究了特高压GIS不同位置发生局部放电时超声波信号的传播特性。按照某1 100 k V特高压GIS实际尺寸,建立了特高压GIS三维仿真模型,设置单极子声源分别位于GIS中心导体和盆式绝缘子处,布置多个超声波传感器位于GIS外壳不同位置用于接收局部放电产生的超声波信号。仿真得到了GIS壁面上接收的来自不同位置单极子声源产生的超声波声压分布图,
薛建议 +5 more
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Study on Ultrasonic Nondestructive Evaluation Method and Mechanism of Stress [PDF]
, 2017 随着科技的发展与进步，机械设备运行条件日益苛刻，关键零部件的失效已成为导致机械整体快速失效的主要原因之一。而应力是机械零部件性能降低和使其发生屈服或断裂的主要原因，因此为保证机械设备服役状态，需对机械零部件应力进行评价。 针对目前应力评价方法局限性的难题，本文以声弹性原理为基础，以实现应力的方便、快速、适于现场检测等的无损评价方法研究为目标，研究钢材应力的超声波评价方法及机制。优化应力评价的超声波信号特征参量，基于数值方法分析计算长度、信号幅值及信号的信噪比与特征参量间响应关系；结合力学静载拉伸试验 ...
阙小颖
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Research progress on preparation and characteristics of polysaccharide plant protein complex [PDF]
Polysaccharides and proteins are two important components in food. Combining plant protein with polysaccharides can give full play to their advantages, show new functional characteristics, and improve their shortcomings.
FEI Congxuan +4 more
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Dianci bileiqi, 2007 支柱瓷绝缘子存在的缺陷严重威胁电网的安全运行。介绍了采用超声法对支柱绝缘子进行探伤的基本原理,探伤方法主要有纵波斜角超声波检测和爬波超声波检测两种,纵波斜角超声波检测速度较慢,但可检测瓷件的中心部位;爬波超声波检测速度较快,探测表面下1～15mm的裂纹非常敏感。列举了采用爬波方法在现场检测的实例,建议:在停电时间允许的情况下,应结合爬波和纵波两种方法对支柱绝缘子内部的缺陷进行全面检测。检测时,根据瓷瓶的大小,选择合适尺寸的探头。同时还应根据被检瓷件的材料（高强瓷或普通瓷）,选择同类别的试块和探头。
王勇, 印华, 王谦, 吴高林
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Detection of Rutin in Flower Buds of Sophora japonica by Using Chitosan-Based Carbon Dot Paper Chip [PDF]
, 2023 Based on the selective quenching effect of the flavonoid rutin on the fluorescence of carbon dots prepared by asparagine pyrolysis, a method for rapid detection of rutin content in the flower buds of Sophora japonica by using chitosan-based carbon dot ...
YUE Wei, MENG Lixiu, WANG Yuan, QIN Yongwei
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