Results 11 to 20 of about 3,697 (118)

The influence of subtropical high and the South Asia high on abnormal high temperature in Zhejiang Province in the summer of 2013(副高和南亚高压对2013年夏季浙江省异常高温的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2015
通过分析副高和南亚高压的特征,研究其对2013年浙江省夏季异常高温的影响,结果表明:2013年夏季浙江省出现60余年最严重的高温少雨天气,7~8月全省平均气温、高温日数、极端最高气温均破1951年以来的最高纪录;梅雨期偏短,台风影响程度小,是引发高温的背景条件.在高温发生的6个阶段中,第4阶段高温持续时间长且强度最大.2013年夏季南亚高压和副高表现出明显的相向而行特征,偏强偏西的副高和偏强偏东的南亚高压在高低层叠加,控制浙江一带高低层,受下沉气流影响,对流活动受到抑制.同时发现 ...
ZHANGXiaoquan(张小泉)   +4 more
doaj   +1 more source

Effects of Different Drying Methods on Quality of Walnuts and Stability of Unsaturated Fatty Acids(不同干燥方法对核桃品质及不饱和脂肪酸稳定性的影响) [PDF]

open access: yesShipin kexue jishu xuebao, 2015
In order to investigate effects of different drying methods on the nutritional quality of walnuts, the fresh walnuts were dried by the changeable-temperature hot air drying and far-infrared radiation drying methods and the conventional hot air drying ...
WANG Wenqian(王文倩)   +3 more
doaj   +1 more source

奇亚籽油微胶囊储藏稳定性及释放性质研究Storage stability and release properties of chia seed oil microcapsules

open access: yesZhongguo youzhi, 2022
为探究奇亚籽油微胶囊的储藏稳定性及释放性质,通过监测奇亚籽油微胶囊在4、25、65 ℃下储藏过程中过氧化值的变化,对其进行氧化动力学研究及货架期预测;测定了不同温度和pH对其芯材释放率的影响,并采用Avrami′s公式分析微胶囊中芯材的释放率,考察微胶囊在储藏期间的释放动力学。结果表明:奇亚籽油经微胶囊化后,过氧化值上升速率降低,符合一级氧化动力学方程;25 ℃储藏条件下,奇亚籽油的货架期为16 d,而微胶囊的货架期延长至101 d;且微胶囊在65 ℃储藏6 d后仍能保持较高α-亚麻酸含量(54.64%)
韩婕妤,罗文涛,庞月红,沈晓芳 HAN Jieyu, LUO Wentao, PANG Yuehong, SHEN Xiaofang
doaj   +1 more source

酶辅助三相分离法同时提取亚麻籽油、亚麻籽蛋白 和亚麻籽胶工艺优化Optimization of simultaneous extraction of oil, protein and gum from flaxseed by enzyme-assisted three phase partitioning

open access: yesZhongguo youzhi, 2022
采用酶辅助三相分离法(EATPP)同时提取亚麻籽中的油脂、蛋白质和胶,以亚麻籽油提取率为指标,通过单因素实验和响应面实验优化EATPP工艺条件。结果表明,最优EATPP工艺条件为酶解时间2 h,酶添加量433 U/g,叔丁醇用量3.9 mL/g,硫酸铵用量2.1 g/g,三相提取温度45 ℃,三相提取时间4 h。在最优工艺条件下,3个品种亚麻籽的亚麻籽油提取率为84.47%~89.03%,亚麻籽蛋白提取率为50.58%~55.69%,亚麻籽胶提取率为31.62%~35.61 ...
姚思含1,廖敏和1,2,3,康佳欣1,2,3,魏子凯1,2,刘宁1,2,3,任皓威1,2,3 YAO Sihan1, LIAO Minhe1,2,3, KANG Jiaxin1,2,3, WEI Zikai1,2, LIU Ning1,2,3, REN Haowei1,2,3
doaj   +1 more source

Current status and influencing factors of early enteral nutrition intolerance in patients with post⁃stroke dysphagia [PDF]

open access: yes
Objective To investigate current status of early enteral nutrition intolerance in patients with post⁃ stroke dysphagia and analyze its influencing factors,and to optimize nutritional support strategies and improve clinical outcomes for post⁃stroke ...
WANG Wenjing,BAI Xiaowei
core   +2 more sources

Research progress in hypothermia-induced RBM3 in ischemia-reperfusion injury of various organs [PDF]

open access: yes
Ischemia-reperfusion injury (IRI) is a complex hemodynamic disorder with high mortality rates and limited treatment options. Mild hypothermia is a widely-accepted treatment method for alleviating ischemic and hypoxic injury, especially in the study of ...
Sun Luxuan, Dang Xiaoping, Sun Zijian
core   +1 more source

Effects of Bone Mesenchymal Stem Cells Transplantation Combined with Therapeutic Mild Hypothermia on Recovery of Neurological Functions and Its Mechanisms in Cerebral Ischemia Injury in Rats [PDF]

open access: yes, 2017
摘要 研究背景和目的: 缺血性脑卒中是导致人类高致死率和致残率的主要疾病之一,至今仍缺乏真正有效的治疗措施。研究表明,通过移植BMSCs(bonemarrowmesenchymalstemcell)可缩小梗死面积,促进神经功能修复。亚低温(32~35℃)治疗可减小梗死灶体积,促进血管再生,减轻脑水肿,促进神经功能恢复。因此,本课题组联合这两种治疗方案以期获得最大治疗效果,为临床上脑血管疾病的治疗提供丰富的理论依据。 研究内容和方法: 采用密度梯度离心法与全骨髓细胞贴壁法相结合,提取、培养 ...
汪嘉伟
core  

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

Studies of cryopreservation of callus of Citrus suavissima Hort. et Tanaka by vitrification(瓯柑愈伤组织的玻璃化法超低温保存研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2004
采用玻璃化法对瓯柑愈伤组织进行超低温保存研究.瓯柑愈伤组织在含5%二甲亚砜(DMSO)的MS培养基上预培养5 d,室温下60%PVS2预处理20 min,然后用100%PVS2于0 ℃处理40 min,投入液氮(LN)保存,24 h后在40 ℃水浴中迅速化冻,再用1.2 mol/L蔗糖培养液洗涤3次.用氯化三苯四氮唑(TTC)法检测,其存活率可达85. 62%.冻后的愈伤组织转移到MS + 6-BA 0.5 mg/L继代培养基上,在黑暗中培养生长,存活率可达76.
CHENYong(陈勇)   +2 more
doaj   +1 more source

Experimental study on the effect of various cold ischemia time on liver transplantation with moderate fatty liver [PDF]

open access: yes, 2016
第一章大鼠非酒精性脂肪肝模型的建立和评价 目的高脂饲料配方诱导大鼠肝脏脂肪变性方法 方法采用高脂饲料喂养SD大鼠,病理观察肝脏脂肪变性程度。同普通饲料喂养组大鼠对比,检测谷草转氨酶(AspartateAminotransferase,AST)、谷丙转氨酶(AlanineAminotransfera-se,ALT)、甘油三脂(Triglyceride,TG)变化情况。 结果高脂喂养3周(HF1组)、6周(HF2组)、9周(HF3组),大鼠肝脏分别呈轻度、中度、重度脂肪变,对照组3周(LF1组)、6周 ...
王少虎
core  

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