Results 1 to 10 of about 4,759 (134)

Micro morphology and pore structure of macerals in coal observed by atomic force microscopy (AFM) [PDF]

open access: yes, 2023
Coal is not only important energy resource, but also potential source of materials. As energy resource, coal has these physical properties which are important for comprehensive applications and transformations.
Hao CHEN   +4 more
core   +1 more source

UVA Assisted 4-Thiothymidine for Cancer Treatment [PDF]

open access: yes, 2016
This article reviews the developments of 4-thiothymidine analogues, assisted with UVA light, as a novel cancer therapy. First, the key points on synthetic chemistry, photochemistry and cellular toxicity of 4-thiothymidine are summarized.
Feng, Luo   +3 more
core   +1 more source

南瓜籽分离蛋白颗粒稳定的高内相皮克林乳液的 制备及应用研究Preparation and application of high internal phase Pickering emulsions stabilized by pumpkin seed protein isolates particles

open access: yesZhongguo youzhi, 2023
为了得到一种性能优异的天然来源的颗粒稳定剂,以南瓜籽为原料,采用碱溶酸沉法制备了南瓜籽分离蛋白(PSPI),利用反溶剂法制备了南瓜籽分离蛋白颗粒(PSPI Ps),并以PSPI Ps为稳定剂制备了高内相皮克林乳液(HIPPEs)。考察了水相PSPI Ps质量分数、油相体积分数和水相pH对HIPPEs微观结构、粒径和流变性能的影响,并通过扫描电子显微镜以及激光共聚焦扫描显微镜对HIPPEs的界面结构进行了表征。另外,探究了HIPPEs的耐酸碱能力、常温储存稳定性、热稳定性和光稳定性。结果表明 ...
陈凤凤1,2,丁晶晶1,2,王秋博1,2,沈永强1,2,杨成1,2,孙亚娟1,2 CHEN Fengfeng1,2, DING Jingjing1,2, WANG Qiubo1,2, SHEN Yongqiang1,2, YANG Cheng1,2, SUN Yajuan1,2
doaj   +1 more source

Research on Application of Potato Powder in Noodles [PDF]

open access: yes, 2021
In this study, the potato whole flour was added to wheat flour with wheat gluten was auxiliary added to make potato noodle. Three groups of the potato powder noodles with different total flour content were studied from three levels: texture ...
LV Mei   +7 more
core   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

二聚酸抗磨剂对航空煤油润滑性的影响Effects of dimer acid antiwear agent on lubricity of jet fuel

open access: yesZhongguo youzhi, 2023
为考察二聚酸抗磨剂对加氢精制航空煤油润滑性的改善作用,同时验证不同二聚酸抗磨剂的改善效果,分别采用桐油、棉籽油及妥尔油酸为原料进行了二聚酸的合成与精制,利用液相色谱仪、红外光谱仪、核磁共振波谱仪等验证了桐油基、棉籽油基及妥尔油酸基二聚酸的分子结构,采用球柱润滑性评定仪(BOCLE)法和高频往复试验机(HFRR)法考察了3种不同原料来源的二聚酸对航空煤油润滑性的改善作用,用显微镜分析试验球的磨痕形貌,并提出抗磨机制。结果表明:随着二聚酸添加量的不断增大,磨痕直径、表面划痕及深度不断减小;在BOCLE法中 ...
张雁玲, 王姝凡, 王宜迪, 杨卫亚, 李澜鹏, 曹长海 ZHANG Yanling, WANG Shufan, WANG Yidi, YANG Weiya, LI Lanpeng, CAO Changhai
doaj   +1 more source

Study on biofilm formation ability of multidrug-resistant Acinetobacter baumannii in surveillance of nosocomial infection (多重耐药鲍曼不动杆菌生物被膜形成能力在医院感染监测中的研究)

open access: yes中西医结合护理, 2022
Objective To explore the appearance of multi-drug resistant Acinetobacter baumannii in clinical infection cases in the hospital from 2018 to 2010 and its biofilm formation ability, providing a theoretical research basis for in-depth understanding of ...
LI Kaixuan (李凯旋)   +5 more
doaj   +1 more source

Effect of organic solvent and emulsifier on the assembled films of amino silicone oil adsorbed onto cellulose substrate(氨基硅油基于乳液和有机溶剂组装成膜的区别)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2011
通过X光电子能谱(XPS)、原子力显微镜(AFM)、接触角测量仪、衰减全反射红外(ATR-IR)等研究氨基硅油(amino silicone oil, ASO)以乳液形态组装成膜与基于异丙醇溶剂中组装成膜的区别.实验结果发现:以乳液形态组装的ASO膜较基于异丙醇溶剂中组装的ASO膜的膜形貌粗糙、亲水性强.用甲醇溶液洗涤以乳液形态组装的ASO膜后,其膜形貌、亲水性与基于异丙醇溶剂中组装的ASO膜相似,说明ASO基于乳液组装成膜时,乳化剂参与成膜.
MAXian-qi(马现奇)   +3 more
doaj   +1 more source

外泌体介导miRNA-155靶向CTHRC1对胃癌细胞腹膜种植转移的影响

open access: yesZhongguo shiyan zhenduanxue, 2022
目的 探讨外泌体转运miRNA-155靶向胶原三螺旋重复蛋白1(CTHRC1)对胃癌细胞腹膜种植转移的影响。方法 提取胃癌BCG-823细胞外泌体并采用透射电子显微镜鉴定;实时荧光定量PCR检测胃癌BCG-823细胞和外泌体miRNA-155水平;激光共聚焦显微镜观察人腹膜间皮HMrSV5细胞对外泌体吞噬情况;设立阴性对照组、外泌体组和miRNA-155mimic组,通过划痕实验检测外泌体转运miRNA-155对腹膜间皮细胞HMrSV5迁移力的影响 ...
高正兴, 赵琳
doaj  

核医学废水中镥-177分离用磁性金属有机框架淀粉样纤维气凝胶的制备与吸附性能

open access: yesFushe yanjiu yu fushe gongyi xuebao
本研究合成了一种磁性金属有机框架淀粉样纤维(M-UiO-66-NH2/AF)气凝胶,用于高效吸附核医学废水中的镥-177。通过原子力显微镜、透射电子显微镜、扫描电子显微镜、傅里叶变换红外光谱仪、X射线衍射仪、振动样品磁强计和物理吸附仪等多种表征手段,对其形貌、结构和组成进行了详细分析。结果表明,该气凝胶呈均匀且高度多孔的结构,质地超轻且坚固,密度约为30 mg/cm3。其对Lu-DOTA-TATE吸附效率最高可达92%,且在60 min内可达到吸附平衡。吸附动力学数据与拟二阶模型拟合良好 ...
王 欢, 石 岑, 尹 亮亮, 吉 艳琴
doaj   +1 more source

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