Results 1 to 10 of about 19,875 (213)

Comparative Study of Free and Bound Volatile Components in Lichuan Black Tea and Enshi Green Tea(利川红茶与恩施绿茶中游离态与键合态挥发性物质对比分析) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
The kinds and contents of free and bound volatile substances in Lichuan black tea and Enshi green tea, which are unique to Enshi, Hubei province, Wuling area, were studied by headspace solid-phase microextraction technology combined with gas ...
ZHAO Shilan(赵诗兰)   +6 more
doaj   +1 more source

A Meta-analysis of the effect of integrated Traditional Chinese and Western medicine on abdominal distention and constipation after surgery for thoracolumbar fracture (中西医结合治疗胸腰段骨折术后腹胀便秘疗效的Meta分析)

open access: yes中西医结合护理, 2022
Objective To evaluate the clinical effect of integrated Traditional Chinese and Western medicine on abdominal distention and constipation after surgery for thoracolumbar fracture.
SUN Haichao (孙海超)   +3 more
doaj   +1 more source

Design and application of a hand sanitiser bottle with timer (一种带有计时器的消手液瓶设计与应用)

open access: yes中西医结合护理, 2023
Hand hygiene is one of the most important measures to prevent nosocomial infections. This paper introduced the design and application of a hand sanitiser bottle with timer.
YANG Hongyan (杨红艳)   +3 more
doaj   +1 more source

Optimization of Fermentation Process and Establishment of Kinetic Models for Goji-Buckwheat Selenium-Enriched Huangjiu(枸杞苦荞富硒黄酒发酵工艺优化及动力学模型建立) [PDF]

open access: yesShipin kexue jishu xuebao
Goji berry and buckwheat are two plant resources with both medicinal and edible values, rich in various functional components. A novel functional Huangjiu was developed, using glutinous rice as the main raw material and goji berry and buckwheat as ...
WANG Guoqin(王国琴)   +8 more
doaj   +1 more source

单晶金刚石探测器 γ射线响应研究

open access: yesHe jishu
传统半导体探测器无法长期工作在高剂量率辐射环境下,金刚石探测器具有禁带宽度大、载流子迁移率高、耐辐照能力强、时间响应快等优点,适用于极端环境下辐射探测。本文制备了高性能氧终端单晶金刚石(Single Crystal Diamond,SCD)探测器(4.5 mm×4.5 mm×0.3 mm),并对其电学特性、能量分辨率、电荷收集效率及 60Co γ辐射响应特性进行了研究;并利用 238Pu α源辐照测试了其电荷收集谱。结果表明,制备的单晶金刚石探测器在150 V偏压下暗电流低至0.26 pA‧mm -2 ...
王 利斌   +10 more
doaj   +1 more source

Oral Healthcare Workforce Trends: A Survey Analysis

open access: yesInternational Dental Journal
Aim or purpose: This study examines the employment landscape in oral healthcare, focusing on skill gaps and workforce needs amid rising global demands for preventive care and technological advancements. Materials and methods: A mixed-methods survey (2021–
Yuyan Chen, Yanting Jin
doaj   +1 more source

牛山湖两种优势小型鱼类空间分布与沉水植被的关系! [PDF]

open access: yes, 2012
运用8种网目规格的成套浮性刺网作为鱼类采样工具,于2005年夏季在长江中游浅水草型湖泊牛山湖进行鱼类定量采样,通过比较不同茂密程度黄丝草生境中的小型鱼类组成、数量和大小结构,探讨此类湖泊小型鱼类的空间分布特征及其与沉水植被的关系.采样期间共捕获13种1124尾鱼,依据其等级丰度和出现频次,和红鳍原!为该湖优势上层小型鱼类.在调查的沉水植物生物量范围内,鱼类物种丰富度和Shannon多样性指数与沉水植物生物量之间呈现倒抛物线关系;两种优势小型鱼类的种群丰度均与沉水植物生物量有着显著的线性正相关关系 ...
刘家寿   +3 more
core  

Meta-analysis of motor imagery therapy on swallowing dysfunction in stroke patients (运动想象疗法对脑卒中后患者吞咽功能障碍影响的Meta分析)

open access: yes中西医结合护理
Objective To systematically evaluate the effect of motor imagery therapy (MI) on swallowing dysfunction in post-stroke patients. Methods Randomized controlled trials (RCTs) on the effects of MI on swallowing dysfunction in post-stroke patients were ...
GUO Jiaxin (郭嘉欣)   +5 more
doaj   +1 more source

上海曹扬环浜污染水体的生态修复 [PDF]

open access: yes, 2005
曹扬环浜是一条环形封闭水道,水质低于地表水V类标准,水体处于严重超富营养化水平,全浜暴发蓝藻水华现象。在采用截污、造流、生态恢复等生态工程措施综合治理后,随着健康水生态系统的建立,河浜水质逐步变好(由劣V类改善为接近Ⅲ类标准),水体透明见底,沉水植物覆盖率达70%~90%,水体一直维持“清水草型稳态”。重点介绍了河道治理中采用的生态修复措施及其作用,并从截污、营养盐、水生生物等方面分析了各项工程措施对抑制藻类生长、水质改善的影响 ...
方涛,王春树,陈洪达,李敦海,刘永定
core  

罗氏沼虾(Macrobrachium rosenbergii)卵巢再发育规律及启动再次发育的关键基因和信号通路研究

open access: yesHaiyang yu huzhao
罗氏沼虾在温度适宜的条件下可常年产卵,生产上常利用其多次产卵的特性来进行育苗生产,以提高亲虾利用率,从而提高经济效益。为更深入地了解罗氏沼虾卵巢再次发育的动态变化规律及启动再次发育的关键基因和信号通路,对罗氏沼虾卵巢再发育过程中的卵巢外部形态、内部组织学及不同发育时期的转录组学进行研究。结果表明,罗氏沼虾卵巢再发育可分为卵原细胞积累期、卵母细胞生成期、卵子成熟期、再次排卵期及恢复期共5个时期;转录组测序共获得5个发育时期卵巢99.3 Gb质控后数据,成功注释到89 614个Unigenes,识别了32 ...
孔 天赐   +9 more
doaj   +1 more source

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