检索结果-南通市图书馆

Solubility and diffusivity of CO2 in n-butanol ＋ N235 system and absorption mechanism of CO2 in a coupled reactionextraction process

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2016年第4期10卷 480-489页

作者： guilan chen Xingfu Song Shuying Sun Yanxia Xu Jianguo Yu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and Technology Shanghai 200237 China

The absorption of CO2 in insoluble organic amine is crucial for understanding the mechanism of coupled reaction-extraction-crystallization process between aqueous chloride and CO2. In this study, the solubility and diffusivity of CO2 in n-butanol＋ N235 system were measured and reported. The absorption of CO2 in the system is a physical absorption behavior and the solubility of CO2 decreases with the increase of the mass fraction of N235. The diffusivity of CO2 increases firstly and then decreases with the increase in the mass fraction of N235. Moreover, the absorption mechanism of CO2 in the coupled reaction-extraction-crystallization process was investigated and identified by experiments. The results indicated that in the coupled reaction-extraction-crystallization process, CO2 is absorbed by the aqueous phase rather than by the organic phase and further transferred into the aqueous phase.

关键词： carbon dioxide N235 solubility diffusivity,coupled process

Extraction of hydrogen chloride by a coupled reaction-solvent extraction process

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2015年第4期9卷 479-487页

作者： Yunzhao Li Xingfu Song guilan chen Shuying Sun Yanxia Xu Jianguo Yu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and Technology Shanghai 200237 China

A coupled reaction-solvent extraction process was used to remove HC1 from a simulated distiller waste. The extraction performances of various extractants and diluents were compared and the apparent basicity ofN235 （a mixture of tertiary amines） in various diluents was determined. The best results were obtained using N235 and isoamyl alcohol as the extractant and diluent, respectively. The yield of HC1 from the coupled extraction was 75% with this extraction system. The mechanisms for the removal of HC1 in both the direct and coupled extractions were investigated. For the coupled extraction, the formation of an RaNHC1 ion-pair complex was involved in the HC1 removal. For the direct extraction, the mechanism involved the formation of hydrogen bonds at high concentrations of HC1.

关键词： distiller waste coupled reaction and solventextraction N235 extraction mechanism hydrogen chloride

2种水土保持林土壤微团聚体组成及其在不同坡位和不同土层间的分布特征

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

东北林业大学学报 2024年第3期52卷 119-124页

作者：卜庆雨王秀伟陈桂兰谷会岩东北林业大学哈尔滨150040

2022年8月份,在黑龙江省齐齐哈尔市克山县境内的克山农场,选择位置相邻,坡度、坡向、坡长、林龄基本一致的樟子松水土保持林、杨树水土保持林、坡耕地(对照)为研究对象;在选定的坡面上沿着和坡面等高线垂直的方向分别布设3条样线作为3... 详细信息

2022年8月份,在黑龙江省齐齐哈尔市克山县境内的克山农场,选择位置相邻,坡度、坡向、坡长、林龄基本一致的樟子松水土保持林、杨树水土保持林、坡耕地(对照)为研究对象;在选定的坡面上沿着和坡面等高线垂直的方向分别布设3条样线作为3个重复,每2条样线之间间隔3 m,每条样线从坡顶至坡底分别设置10个取样点,每个取样点之间间隔30m;使用环刀法,按照土层深度(h)采集土壤表层(0

关键词：水土保持林分形维数粒径组成樟子松杨树

River Treatment and Measures in Water Conservancy Projects of Small Farmland

在线全文

学校读者我要写书评

暂无评论

Journal of Architectural Research and Development 2020年第4期4卷 22-25页

作者： guilan chen Shanghai Tusguan Engineering Design Consulting Co. Ltd.Shanghai 200000China

China is country of massive agriculture.Although it has gradually changed from traditionalagriculture to modern agriculture in recent years, thereare still many problems in the transition. Rivers playan important role in water conservancy projects offarmland. Therefore, full attention should be paid toriver management of farmland. This thesis analyzes itand proposes countermeasures for governance.

关键词： Small farmland Water conservancy project River regulation

中国广东人群δ地中海贫血基因谱和血液学表型研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华检验医学杂志 2024年第1期47卷 49-56页

作者：陈晓俊江帆周剑英李坚汤雪薇陈桂兰李发涛唐芳张韧李东至广州中医药大学基础医学院广州510006 广州市妇女儿童医疗中心产前诊断中心广州510623

目的探讨中国广东人群δ珠蛋白(HBD)基因变异谱及δ地中海贫血血液学表型特征。方法采用回顾性病例分析研究,收集2020年7月至2022年12月参加广州市免费地中海贫血筛查的11616对夫妇血液样本,进行血常规和血红蛋白(Hb)毛细管电泳分析,依... 详细信息

目的探讨中国广东人群δ珠蛋白(HBD)基因变异谱及δ地中海贫血血液学表型特征。方法采用回顾性病例分析研究,收集2020年7月至2022年12月参加广州市免费地中海贫血筛查的11616对夫妇血液样本,进行血常规和血红蛋白(Hb)毛细管电泳分析,依据以上结果,共154例样本入组研究:(1)HbA_(2)C(57.02%,65/114)、c.-80T>C(9.65%,11/114)与c.349C>T(7.89%,9/114)。(2)HbA_(2)5.0%样本均未检出HBD基因变异。(4)HbA_(2)C是中国广东人群最常见类型;启动子区突变可导致HbA_(2)降低,HbF升高,但HbF值通常5.0%。本研究丰富了广东人群HBD基因突变谱。

关键词：地中海贫血珠蛋白基因异常血红蛋白基因表达谱表型

熊耳山矿集区蒿坪沟Ag-Au多金属矿床绿泥石特征及其找矿意义

在线全文

学校读者我要写书评

暂无评论

地质力学学报 2024年第1期30卷 129-146页

作者：刘松岩张达杨明建张鑫明未国栋聂胜强王轩冯彦平栗文杰陈贵兰中国地质大学(北京) 北京100083 中国地质科学院矿产资源研究所北京100037 北京大学地球与空间科学学院北京100871 河南发恩德金属矿产有限公司河南洛阳471700

为理清蒿坪沟Ag-Au多金属矿床中多阶段矿化与热液蚀变之间的关系,文章选取与铅锌成矿阶段密切相关的绿泥石进行野外观察及电子探针分析。文章将蒿坪沟Ag-Au多金属矿床中的绿泥石分为3类:Ⅰ型分布在石英脉两侧的围岩中;Ⅱ型呈细粒、隐晶... 详细信息

为理清蒿坪沟Ag-Au多金属矿床中多阶段矿化与热液蚀变之间的关系,文章选取与铅锌成矿阶段密切相关的绿泥石进行野外观察及电子探针分析。文章将蒿坪沟Ag-Au多金属矿床中的绿泥石分为3类:Ⅰ型分布在石英脉两侧的围岩中;Ⅱ型呈细粒、隐晶质填充于隐爆角砾岩基质;Ⅲ型与铅锌硫化物共生、或以蠕虫状广泛分布在石英颗粒间隙中。3种类型绿泥石均为斜绿泥石,并落在了铁镁绿泥石的范围内,指示其形成于偏还原的酸性环境中;在阳离子置换中,主要发生了Fe2+对Mg2+的置换,其余置换作用均不明显;3种绿泥石形成与镁铁质围岩关系密切。由校正后的绿泥石地质温度计估算出3种类型绿泥石的形成温度为196~239℃,属于中—低温热液蚀变范围。3类绿泥石与蒿坪沟Ag-Au多金属矿床银铅锌成矿阶段相匹配,对进一步找矿勘查具有重要意义。绿泥石化学特征表明岩浆热液参与了成矿流体的形成,绿泥石形成于熊耳山矿集区早白垩世大规模岩浆−成矿时期。

关键词：多金属矿床找矿绿泥石电子探针成矿地球化学熊耳山

雷火灸联合中药穴位贴敷治疗脾肾阳虚型肾性水肿的效果

在线全文

学校读者我要写书评

暂无评论

首都食品与医药 2024年第5期31卷 161-163页

作者：徐维瞿艳瞿晓密施海丹陈桂兰尹玲玲朱云燕江苏省南通市中医院江苏南通226000

目的观察雷火灸联合中药穴位贴敷治疗脾肾阳虚型肾性水肿的临床效果.方法纳入2021年1月-12月江苏省南通市中医院收治的86例脾肾阳虚型肾性水肿患者进行研究,采用随机数字表法分为对照组和观察组,每组各43例.对照组行常规西医治疗,观察... 详细信息

目的观察雷火灸联合中药穴位贴敷治疗脾肾阳虚型肾性水肿的临床效果.方法纳入2021年1月-12月江苏省南通市中医院收治的86例脾肾阳虚型肾性水肿患者进行研究,采用随机数字表法分为对照组和观察组,每组各43例.对照组行常规西医治疗,观察组在对照组基础上予以雷火灸联合穴位贴敷.观察两组中医证候积分、治疗效果及安全性.结果治疗后,观察组中医证候积分均较对照组低,治疗总有效率较对照组高(P<0.05);两组均未出现严重不良反应.结论雷火灸联合中药穴位贴敷辅助治疗脾肾阳虚型肾性水肿可改善患者中医证候,提升临床疗效,安全可靠.

关键词：雷火灸穴位贴敷脾肾阳虚肾性水肿

The Knowledge and Application to Wusu Point

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国针灸 1995年第S2期15卷 378-378页

作者： chen guilan(Goriatric Hospital of Jiamusi City)

ＴｈｅＫｎｏｗｌｅｄｇｅａｎｄＡｐｐｌｉｃａｔｉｏｎｔｏＷｕｓｕＰｏｉｎｔ￥ＣｈｅｎＧｕｉｌａｎ（ＧｏｒｉａｔｒｉｃＨｏｓｐｉｔａｌｏｆＪｉａｍｕｓｉＣｉｔｙ）Ｉｎｔｈｉｓｐａｐｅｒ，ｔｈｅｉｎｆｏｒｍａｔｉｏｎａｂ...

ＴｈｅＫｎｏｗｌｅｄｇｅａｎｄＡｐｐｌｉｃａｔｉｏｎｔｏＷｕｓｕＰｏｉｎｔ￥ＣｈｅｎＧｕｉｌａｎ（ＧｏｒｉａｔｒｉｃＨｏｓｐｉｔａｌｏｆＪｉａｍｕｓｉＣｉｔｙ）Ｉｎｔｈｉｓｐａｐｅｒ，ｔｈｅｉｎｆｏｒｍａｔｉｏｎａｂｏｕｔＷｕｓｕｐｏｉｎｔｓｋｎｏｗ...

关键词：

Role of autoreactive Tc17 cells in the pathogenesis of experimental autoimmune encephalomyelitis

在线全文

学校读者我要写书评

暂无评论

Neuroprotection 2024年第1期2卷 49-59页

作者： Yong Peng Xiuli Zhang Yandan Tang Shunqing He guilan Rao Quan chen Yahui Xue Hong Jin Shu Liu Ziyang Zhou Yun Xiang Department of Neurology Affliated First Hospitalof HunanTraditional Chinese Medical CollegeZhuzhouHunanChina Department of Neurology The Third Affiliated Hospital of Hunan University of Chinese MedicineZhuzhouHunanChina Science and Technology Innovation Center HunanUniversityof ChineseMedicineChangshaHunanChina

Background:The pathogenesis of multiple sclerosis(MS)and experimental autoimmune encephalomyelitis(EAE-an animal model of MS)is primarily mediated by T cells.However,recent studies have only focused on interleukin(IL)-17-secreting CD4^(+)T-helper cells,also known as Th17 cells.This study aimed to compare Th17 cells and IL-17-secreting CD8^(+)T-cytotoxic cells(Tc17)in the context of MS/EAE.Methods:Female C57BL/6 mice were immunized with myelin oligodendrocyte glycoprotein peptides 35-55(MOG35-55),pertussis toxin,and complete Freund's adjuvant to establish the EAE animal model.T cells were isolated from the spleen(12-14 days postimmunization).CD4^(+)and CD8^(+)T cells were purified using isolation kit and then differentiated into Th17 and Tc17,respectively,using MOG35-55 and IL-23.The secretion levels of interferon-(IFN-γ)and IL-17 were measured via enzyme-linked immunosorbent assay using cultured CD4^(+)and CD8^(+)T cell supernatants.The pathogenicity of Tc17 and Th17 cells was assessed through adoptive transfer(tEAE),with the clinical course assessed using an EAE score(0-5).Hematoxylin and eosin as well as Luxol fast blue staining were used to examine the spinal cord.Purified CD8^(+)CD3^(+)and CD4^(+)CD3^(+)cells differentiated into Tc17 and Th17 cells,respectively,were stimulated with MOG35-55 peptide for proliferation assays.Results:The results showed that Tc17 cells(15,951±19855VS.55,709±4196cpm;p<0.050)exhibited a weaker response to highest dose(20μg/mL)MOG35-55 than Th17 cells.However,this response was not dependent on Th17 cells.After the 48h stimulation,at the highest dose(20μg/mL)of MOG35-55.Tc17 cells secreted lower levels of IFN-(280.00±15.00vs.556.67±15.28pg/mL,p<0.050)and IL-17(102.67±5.86 pg/mL vs.288.33±12.58 pg/mL;p<0.050)than Th17 cells.Similar patterns were observed for IFN-γsecretion at 96 and 144h.Furthermore,Tc17 cell-induced tEAE mice exhibited similar EAE scores to Th17 cell-induced tEAE mice and also showed similar inflammation and demyelination.Conclusion:The degree of pathogenicity of Tc1

关键词： CD8^(+)T cells experimental autoimmune myelitis IFN-y IL-17 multiple sclerosis Tc17 cells