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21篇 您的检索式:关键字=醇水
    题名 作者 年代 出处 被引量
1溶剂加盐对醇水汽液平衡的影响显示文摘讨论了溶剂加盐对乙醇 -水、叔丁醇 -水、异丙醇 -水 3种醇水体系的影响。常压下汽液平衡的实验结果表明溶剂加盐能够有效地提高醇对水的相对挥发度 ,在恒沸点处 3种醇水体系的相对挥发度分别是 2 56、2 68、2 67。所加的最优盐是CaCl2 和KAc。溶剂加盐的作用机理是溶剂和盐对醇水分子的双重作用 ,且作用力大小不同。雷志刚 周荣琪 2000精细化工2000,17,5:10
2A comparative study on the levels of serum cytokines and cortisol among post-traumatic stress disorder patients of Li and Han ethnicities in Hainan显示文摘Chen Tao Guo Min Gao Yunsuo Chen Feng Guo Juncheng Liu Tao Wu Duoyu Jiang Xianglin 2014Chinese Medical Journal2014,,15:8
3Antifertility Activity of Hydroalcoholic Extract of Ocimum Basilicum Linn. Leaves on Female Wistar Rats显示文摘Objective To determine the effect of hydroalcoholic extract of Ocimum basilicum Linn. leaves on ovulation, implantation and maintenance of pregnancy in adult female cyclic Wistar rats. Methods Ocimum basilicum leaves extract (364 mg/kg and 624 mg/kg) was screened for its antiovulatory, antiimplantation and abortifacient activities. Vaginal smear of each rat was monitored daily during the 15-day treatment of the first experiment. Estimation of cholesterol in ovarian tissue and its histology was carried out to confirm its antiovulatory activity. In the second and third experiments, animals received treatment from 1st to 7th and 8th to 16th day of pregnancy, respectively. The number of implantations and litter size were determined through laparotomy on 10th and 20th day of pregnancy, respectively in two tests. The treated groups were compared with pain control. Results A significant increase in duration of estrus cycle and diestrus phase was observed (P<0.001). A significant decrease in ovarian weight and notable increase in ovarian tissue cholesterol level was also observed (P<0.001). Weight of uterus in treated group was found to be decreased. Histological report showed presence of large corpora lutea in ovarian parenchyma. Neither antiimplantation nor abortifacient effect was observed in rats treated with both the doses of extract. Conclusion Hydroalcoholic extract of Ocimum basilicum interferes normal ovulation by disrupting the estrus cycle and prolonging diestrus phase thus, has a potential of being developed into a female contraceptive.Alia Bilal Nasreen Jahan Ajij Ahmed Saima Naaz Bilal Shahida Habib 2013Journal of Reproduction and Contraception2013,24,1:2
4两根NiCo_2O_4涂覆的聚乙烯醇水凝胶纤维构建线状可自愈超级电容器(英文)显示文摘线状超级电容器因其轻量、柔性及可编织性的特点引起了广泛关注.如何延长超级电容器的使用寿命仍然是当前所面临的一个挑战.本文报道了一种新型的可拉伸和自愈的线状超级电容器.首先将两根由海胆状NiCo_2O_4纳米材料包裹的聚乙烯醇/氢氧化钾(PVA/KOH)水凝胶缠绕在一起,进而形成一个完整的超级电容器.值得注意的是,PVA水凝胶可以很容易地用一个比较小的拉力(12.51 kPa)实现300%的形变量.这一结果优于之前报道的以350 kPa的拉力拉伸到300%应变的聚氨酯.此外,该线状超级电容器表现出良好的电化学性能.在电流密度为0.053 mA cm^(-2)时面积比电容为3.88 mF cm^(-2),并且在1000次充放电后仍有88.23%的剩余面积比电容,显示了良好的循环稳定性.此外,在四次切断/自愈后电容保留量仍有82.19%.这项工作将会为下一代自愈和可穿戴设备提供一种新的设计方案.贾蕊 李腊 艾远飞 杜辉 张晓东 陈照军 沈国震 2018Science China Materials2018,61,2:1
5Cortisol levels in skimmed milk during the first 22 weeks of lactation and response to short-term metabolic stress and lameness in dairy cows显示文摘Background:Cortisol is secreted into blood in reaction to acute stress,but also in phases of diminished feed intake and changed animal behavior.As cows do not always show clear signs of discomfort,reliable diagnostic markers could be used to provide information regarding individual cows' distress.The objective of this study was to establish an ether free immunoassay for the detection of Cortisol and to determine values during the first 22 weeks of lactation.Furthermore,the response in milk Cortisol levels was assessed during times of metabolic stress and pain associated symptoms of lameness.Methods:Milk yield and composition,blood serum glucose,NEFA and BHBA as well as milk Cortisol were determined in 24 multiparous Holstein-Friesian cows over the course of the first 22 weeks of lactation.Animals were further checked for signs of clinical diseases on a daily basis.Two feed restrictions over three days(FR;70%of precious ad libitum intake)were performed during the 4th wk and the 21^(st) wk,respectively.An ELISA for Cortisol measurement in easily accessible bovine skimmed milk was established and applied.Results:On the last day of FR in early lactation,a reduaion in milk yield and changes in serum metabolites compared to respective previous values were detected.The FR in mid-lactation resulted in no changes in milk production and serum metabolites.Milk Cortisol was highest during first wk of lactation and remained on comparable levels thereafter.Milk yield and composition were not influenced by FR.Lameness resulted in enhanced milk Cortisol levels.Conclusion:Milk Cortisol could be used as an indicator of painful symptoms such as lameness.Higher values of milk Cortisol levels during first wk of lactation should be taken into account for interpretation.Katharina Gellrich Tanja Sigl Heinrich H.D.Meyer Steffi Wiedemann 2015Journal of Animal Science and Biotechnology2015,6,4:1
6Low DHEAS levels are associated with depressive symptoms in elderly Chinese men: results from a large study显示文摘这研究用人和全部的睾丸激素, dehydroepiandrosterone (DHEA ) , DHEA 硫酸盐(DHEAS ) , oestradiol 和血球素(SHBG ) 铺平的性荷尔蒙绑定,和免费雄激素索引的老汉语调查了在压抑的症状之间的协会。从 1147 社区住所的代表性的数据老人,变老 65 并且更旧,被使用。压抑的症状用中国衰老老人消沉规模(GDS ) 被测量。全部的睾丸激素,免费睾丸激素, DHEA, DHEAS,全部的 oestradiol,免费雄激素索引和 SHBG 层次被估计。DHEA 显著地与 GDS 分数被联系,并且向 DHEAS 协会有一个趋势,但是这不是重要的(β =− 0.110, P=0.015;β =− 0.074, P=0.055 ) 。然而,没有协会在压抑的症状之间被看见并且总计睾丸激素层次,免费睾丸激素层次, oestradiol 层次或 SHBG 层次。以临床上相关的压抑的症状的存在,病人在之间没有统计上重要的差别最低在性别类固醇荷尔蒙层次的另外的 quartiles 的性别类固醇荷尔蒙层次和那些方照。同样到西方的研究,我们 DHEA 和 DHEAS 铺平的学习表演与压抑的症状被联系。Samuel YS Wong Jason C Leung Timothy Kwok Claes Ohlsson Liesbeth Vandenput Ping C Leung Jean Woo 2011Asian Journal of Andrology2011,13,6:1
7废旧涤纶的醇碱混合解聚的探究显示文摘为了解决废旧涤纶对环境的污染问题,我们使用了醇水混合解聚代替传统的水解法,通过实验探讨了实验温度、醇水比、反应时间、碱的浓度、溶剂体积对废旧涤纶解聚的影响.实验结果表明选取涤纶质量2.5 g的条件下,醇水混合降解温度在75~78℃之间,醇水比7:1,反应时间2 h,碱的质量分数为18%,溶剂体积为40 mL,此时解聚效果达到最佳.王凤祥 秦瑞程 吴方仁 吴家琛 刘凯希 魏红 2019吉林化工学院学报2019,36,3:1
8雌二醇水平升高可致蛋鸡肝脏脂肪沉积显示文摘韩国建国大学动物生物与技术学院研究人员对蛋鸡注射雌二醇(E2),研究其对脂质代谢的影响。海兰褐蛋鸡分为4组,每天分别以0、0.5和1.0mg/kgBW剂量肌肉注射E2,连续3周,第4组为玉米油空白对照组。结果,各组间产蛋量无显著差异;E2处理组肝脏重量高于对照组,俞燕 2010中国家禽2010,32,22:0
9软包装低VOCs排放油墨的研制显示文摘本文介绍了两款可以从源头上控制VOCs排放的油墨产品性能,一款是可以在目前阶段,有效减少印刷环节的VOCs排放,并达到印刷要求的醇水油墨;一款是完全没有VOCs排放的UV-LED油墨。王达志 2018包装前沿2018,,2:0
1011个“坏习惯”有益健康显示文摘适当发怒降低血压 美国卡内基梅隆大学的研究人员发现,在遭遇令人气愤的境况时,与自我制怒的人相比,适度发火者的血压更低,“应激激素”皮质醇的分泌量也更小。皮质醇的作用是维持血压稳定和控铡发炎,但皮质醇水平长期偏高会引起人体新陈代谢的变动,造成血糖升高、陈宗伦 2011品牌与标准化2011,,7:0
11毛细血管膜超滤对酒中醇-水缔合的影响显示文摘本文以核磁共振仪为手段,研究了毛细管膜超滤对酒中醇-水缔合的影响。这种影响主要表现在加快了醇分子聚合体、水分子聚合体的解聚,促进了醇-水分子间的氢健缔合,从而证实了毛细管膜超滤对白酒的偿陈作用。蒋茂贵 喻力行 沈青 宋国强 吴忠亚 熊小毛 赵刚 1993酿酒1993,20,6:0
12新东方成功推出“醇水油墨+喷淋+生物降解”处理系统解决方案显示文摘5月14日,浙江桐乡。由新东方新材料股份有限公司、新东方油墨有限公司主办,宁波博尔环保科技股份有限公司、伊士曼(中国)投资股份有限公司合办的“2019软包装行业VOCs治理整体解决方案峰会”在浙江桐乡新塘新世纪大酒店举行。范军红 沈晓芸 周益(图) 2019包装前沿2019,0,4:0
13醇水墨印刷故障处理技巧显示文摘随着包装行业对环保的重视,醇水油墨得到越来越多的关注与使用。为了更好地发挥醇水油墨的性能,下面简要介绍一些醇水墨使用过程中的一些经验及故障处理技巧。刘家聚 2009广东包装2009,,4:0
14Experimental Study on Liquid-Liquid Equilibria of Alcohol- Ester-Water-CaCl_2 System显示文摘The binary liquid-liquid equilibrium(LLE) data for salt-containing systems of 1-butanol+water+CaCl2, n-butyl acetate+water+CaCl2 and ethyl acetate+acetic acid+water+CaCl2 were determined and the salt effect was analyzed. The results showed that an obvious salt effect could be identified for the systems of 1-butanol+water+CaCl2 and ethyl acetate+acetic acid+water.Fu Jiquan Fu Die 2014China Petroleum Processing & Petrochemical Technology2014,16,2:0
15醇水凹印油墨 吹响绿色集结号显示文摘醇水凹印油墨的设计原理 众所周知,水性凹印油墨已在软包装印刷领域有了很多成熟的应用案例,但由于水的挥发速率较低,干燥时的蒸发潜热较高,如果不对印刷工艺进行改进,就必须加大风力和升高温度,而这样势必会引起薄膜张力改变和拉伸变形,从而影响套印精度,马立胜 2011印刷技术2011,,24:0
16QQ群探讨实录:醇水油墨印刷控制要点显示文摘7月4日,广东包协情报委、《包装前沿》杂志在旗下两个QQ群、5个微信群联合主办“醇水油墨印刷控制要点”在线技术交流会。交流会邀请了新东方油墨有限公司、浙江省环保油墨工程中心总工办主任王达志先生作为主讲嘉宾,就大家关心的问题进行了在线交流与讨论。王达志 2019包装前沿2019,0,5:0
17Evaluation of Basal Serum Adrenocorticotropic Hormone and Cortisol Levels and Their Relationship with Nonalcoholic Fatty Liver Disease in Male Patients with Idiopathic Hypogonadotropic Hypogonadism显示文摘Wen-Bo Wang Fei She Li-Fang Xie Wen-Hua Yan Jin-Zhi Ouyang Bao-An Wang Hang-Yun Ma Li Zang Yi-Ming Mu 2016Chinese Medical Journal2016,,10:0
18单不饱和脂肪酸的保健作用显示文摘在脂肪酸分类上,按照脂肪酸碳链中双键的有无,将脂肪酸分为不饱和脂肪酸和饱和脂肪酸,其中,含有一个双键的叫做单不饱和脂肪酸,而含有两个或两个以上双键的叫多不饱和脂肪酸。曾育生 1995饮食科学1995,0,1:0
1950%戊唑醇水悬浮剂的研究显示文摘农药水悬浮剂是由不溶或微溶于水的固体原药借助某些助剂.通过超微粉碎比较均匀地分散于水中,形成一种颗粒细小的高悬浮、能流动的稳定的液固态体系。该农药制剂可与水以任何比例均匀混合.使用方便,对人畜安全,对环境污染少.可直接或稀释后喷洒。由于悬浮剂的加工工艺通过湿法粉碎.其粒子粒径一般在5μm以内.因此具有较高的悬浮率.利于农作物对药剂的吸收,尤其是其以水为基质.对环境安全。因而对于在水介质中比较稳定的原药.配置成水悬浮剂将是当今农药发展的主流方向之一。郝丽霞 邵彦坡 刘希玲 董立峰 2017今日农药2017,0,1:0
20Activity Coefficients of NaCI in Ethylene Glycol-Water Mixtures Using Potentiometric Measurements at 288.15, 298.15 and 308.15 K显示文摘李淑妮 唐静 马燕燕 翟全国 蒋育澄 胡满成 2011Chinese Journal of Chemistry2011,29,10:0
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