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Efficiency of Aluminium and Copper Coated Aluminium Electrode in Hydrogen Fuel Generation from Rain Water

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Energy and Power Engineering 2020年第6期12卷 348-356页

作者： Md. Khalid Saklin Rajib Chandra Das Yeasmin Akther Sanchita Dewanjee sujan Kanti Das Tania Sabnam Binta Monir Susmita Mondal Department of Applied Chemistry and Chemical Engineering Noakhali Science and Technology University Noakhali Bangladesh Bangladesh Council of Scientific and Industrial Research Chattogram Bangladesh Department of Pharmacy Noakhali Science and Technology University Noakhali Bangladesh

Water electrolysis is considered as the most capable and old technology for hydrogen fuel preparation. Electrolysis needs external electrical energy through electrodes to split water into hydrogen and oxygen. An efficient electrolysis requires suitable electrodes to minimize potential drop. In this study Aluminium and Copper Coated Aluminium were used as different combination of Anodes and Cathodes to find out more efficient electrodes combination. NaCl solution in rain water was taken as electrolyte. Rain water was taken to avoid ionic impedance of tap water and expenses of distilled water. In this study, the most efficient electrode combination was Copper Coated Aluminium (anode)-Aluminium (cathode) and gave the highest efficiency of hydrogen production to about 11% at normal temperature for very low concentration of NaCl (0.051 M) which increased with temperature, up to 29% upon rising of temp to 60°C. It was showed that higher concentration of electrolyte would surge the efficiency significantly. If the supplied heat could be provided from any waste heat sources then this study would be more efficient. However, current research evaluated the technical feasibility of this electrode combination for producing hydrogen with electrolysis of rain water utilizing ele

关键词： Hydrogen Production Electrochemistry Water Electrolysis Copper Coated Aluminum Rain Water

Prenatal diagnosis of methylmalonic aciduria by analysis of organic acids and total homocysteine in amniotic fluid

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Chinese Medical Journal 2008年第3期121卷 216-219页

作者： ZHANG Yao YANG Yan-ling HASEGAWA Yuki YAMAGUCHI Seiji SHI Chun-yan SONG Jin-qing SAYAMI sujan LIU Ping YAN Rong DONG Jin-hua QIN Jiong Department of Pediatrics Peking University First Hospital Beijing100034 China Department of Pediatrics Shimane University School of MedicineJapan Department of Obstetrics and Gynecology Peking University FirstHospital Beijing 100034 China Clinical Laboratory Peking University First Hospital Beijing100034 China

Background Methylmalonic aciduria （MMA） is the most frequent disease of organic aciduria in China. Various biochemical strategies are followed for the prenatal diagnosis of MMA. However, since fetuses affected by MMA have decreased excretion of methylmalonic acid, the difficulties of prenatal biochemical diagnosis are obvious. Gas chromatography mass spectrometry （GC/MS） and tandem mass spectrometry （ESl/MS/MS） have allowed us to identify the disease in affected fetuses. The aim of this study was to determine the value of analysis of organic acids and total homocysteine in amniotic fluid in prenatal diagnosis of MMA. Methods The clinical diagnoses and outcomes of nine probands with MMA and the prenatal diagnoses based on biochemical analysis of nine fetuses at risk for MMA were investigated. Amniotic fluid samples from pregnancies at risk for MMA and metabolically normal pregnancies were obtained at 16-24 weeks of gestation. Methylmalonic acid and methylcitric acid were measured by GC/MS, propionylcarnitine was analyzed by ESl/MS/MS, and total homocysteine was determined by fluorescence polarization immunoassay. Results In two pregnancies, high levels of methylmalonic acid, methylcitric acid, propionylcarnitine, and total homocysteine indicated combined MMA and homocysteinemia in the fetuses. One of the mothers continued pregnancy and received cobalamin supplement as prenatal treatment, and the other terminated her pregnancy. In one pregnancy, significantly elevated levels of methylmalonic acid, methylcitric acid, and propionylcarnitine, and normal level of total homocysteine was found indicating isolated MMA in the fetus; abortion was performed on this case. In the other six pregnancies, all the levels of the above mentioned metabolites were normal suggesting that the fetuses were not affected by MMA. The diagnoses were confirmed after delivery by testing urinary organic acids and plasma total homocysteine. Conclusions The metabolic abnormalities of MMA occur

关键词： methylmalonic acid prenatal diagnosis total homocysteine aminiotic fluid

伤椎置钉联合可注射硫酸钙治疗围绝经期胸腰椎骨折的疗效分析

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中华医学杂志 2013年第45期93卷 3582-3585页

作者：于研曾至立李山珠贾永伟荚龙王建杰吴周睿胡笑徐委 sujan Maharjan 程黎明同济大学附属同济医院脊柱外科上海200065 新疆医科大学第二附属医院骨科

目的探讨伤椎置钉联合可注射硫酸钙（MIIG）治疗围绝经期胸腰椎骨折的临床疗效.方法回顾性分析2009年4月至2013年5月同济大学附属同济医院脊柱外科21例围绝经期胸腰椎骨折患者,联合伤椎置钉后路内固定及MIIG前路椎体增强的三维重建术... 详细信息

目的探讨伤椎置钉联合可注射硫酸钙（MIIG）治疗围绝经期胸腰椎骨折的临床疗效.方法回顾性分析2009年4月至2013年5月同济大学附属同济医院脊柱外科21例围绝经期胸腰椎骨折患者,联合伤椎置钉后路内固定及MIIG前路椎体增强的三维重建术式,比较术后伤椎椎体高度和Cobb角度变化情况,以疼痛视觉模拟评分（VAS）评估患者自觉症状的改变,并随访观察.结果 21例患者经伤椎置钉内固定和MIIGX3手术治疗后成功治愈,平均填充量为4.6 ml.术中渗漏者2例,无严重并发症.患者均获得随访,时间为6～36个月,平均15个月,VAS评分系统显示疼痛症状明显缓解（术前VAS评分平均为7.8分,术后VAS评分平均为2.2分）,伤椎椎体高度和Cobb角较术前明显改善,术前分别为45.0%±6.4%和（19.4±4.5）°,末次随访分别为15.4 %±3.9%和（8.7±3.2）°.除2例椎体高度丢失12%外,其余椎体高度平均恢复达正常的85%.结论围绝经期患者的骨折伤椎,经伤椎置钉联合MIIG的手术治疗,可达到安全有效、复位满意、稳定持久的临床疗效.

关键词：脊柱骨折骨钉硫酸钙绝经后期

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银屑病红皮病的血清免疫球蛋白研究

世界核心医学期刊文摘（皮肤病学分册） 2005年第7期1卷 41-42页

作者： sujan S.A. 李晓莉冯义国

The cause of psoriatic erythroderma (PE) is still unknown. Elevation of serum IgE has been reported in erythroderma, and as serum hyper-IgE is Th2 cell dominated it is of interest to investigate the serum IgE level in PE. In this study, the level of immunoglobulins in the sera of PE patients was analysed by a retrospective case-control study using psoriasis vulgaris (PV)patients as controls. The PE and PV patients were matched in a 1: 3 pattern: the first three age and sex matched PV inpatients were selected. All of the subjects were nonatopic and without allergic history. The serum IgE level was found to be elevated in 81.3% of the PE group, which is much higher than that (6.3% ) of the controls (odds ratio, 65.0; 95% CI, 11.7-361.2; P < 0.001; χ 2 test). The mean level of serum IgE was much higher in the PE group (272.38 ± 207.63 IU/mL vs. 53.20 ± .86.05 IU/mL, P < 0.001, Student’ s t-test). No differences were found for other immunoglobulins. These results suggest that in PE the Th1/Th2 cell imbalance may be switched from Th1 dominant to Th2 dominant. The exact role of serum IgE in PE should be investigated further.

关键词：银屑病血清免疫球蛋白回顾研究性别匹配比例失衡

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血管中心性胶质瘤的影像学表现

中华放射学杂志 2019年第9期53卷 775-777页

作者：黄成燕王显龙朱建彬屈耀铭杨云竣秦杰蒋春秀 sujan Thapa 温志波南方医科大学珠江医院影像诊断科广州510282 广东省人民医院广东省医学科学院医学影像部广州510080 南方医科大学南方医院影像中心广州510515

本文报道2011年11月至2018年2月间南方医科大学珠江医院4例、南方医院1例及广东省人民医院1例共6例血管中心性胶质瘤(AG)资料.男4例、女2例,年龄3~43岁,中位年龄16岁.6例均行头颅MRI平扫及增强扫描,其中1例同时行CT平扫.影像检查显示,6... 详细信息

本文报道2011年11月至2018年2月间南方医科大学珠江医院4例、南方医院1例及广东省人民医院1例共6例血管中心性胶质瘤(AG)资料.男4例、女2例,年龄3~43岁,中位年龄16岁.6例均行头颅MRI平扫及增强扫描,其中1例同时行CT平扫.影像检查显示,6例均为幕上脑实质单发肿块.所有AG肿块实性部分T1WI呈等或稍低信号,T2WI呈稍高或高信号,FLAIR呈低或稍高信号,囊性成分T1WI呈低信号,T2WI呈高信号,本组病例均未见出血信号.病灶边界清楚4例,边界不清2例.实性4例、囊带壁结节性1例、囊性1例.CT示实质内点状钙化.无瘤周水肿3例,轻度水肿3例.

关键词：血管中心性胶质瘤磁共振成像

Leigh综合征患儿核基因和线粒体基因突变的初步分析

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临床儿科杂志 2008年第12期26卷 1021-1025页

作者：张尧孙芳孔庆鹏魏晓琼戚豫张英马祎楠 Sayami sujan 王朝霞袁云杨艳玲姜玉武秦炯北京大学第一医院儿科北京100034 中国科学院昆明动物所细胞与分子进化实验室云南昆明650000 北京大学第一医院中心实验室北京100034 北京大学第一医院神经内科北京100034

目的探讨中国人Leigh综合征患儿的发病机制,并对已知的部分核基因和线粒体基因突变进行分析。方法对1992-2006年收集的来自我国28个省、自治区或直辖市的145例Leigh综合征患儿进行病因学分析。在排除SURF1基因和线粒体基因T8993G、T8993... 详细信息

目的探讨中国人Leigh综合征患儿的发病机制,并对已知的部分核基因和线粒体基因突变进行分析。方法对1992-2006年收集的来自我国28个省、自治区或直辖市的145例Leigh综合征患儿进行病因学分析。在排除SURF1基因和线粒体基因T8993G、T8993C、A8344G、A3243G四个位点突变后,对80例患儿的丙酮酸脱氢酶E1α亚单位基因(PDHA1)进行PCR扩增和测序分析;并在此基础上对9个线粒体DNA突变位点(G13513A、A13084T、T10158C、C11777A、T10191C、T14487C、T12706C、9537insC和T9176G)进行突变筛查。另对23例A3243G线粒体DNA突变阳性的患儿进行SURF1基因的分析。结果80例患儿中仅1例携带PDHA1基因突变,为214位点C>T转换,导致PDHA1蛋白第27位氨基酸由精氨酸变为半胱氨酸。而64例患儿其他9个线粒体DNA突变位点筛查均为阴性。在23例携带线粒体DNAA3243G突变的患儿中,6例携带SURF1基因G604C杂合性变异。结论由于Leigh综合征病因复杂多样,使突变分析难于获得阳性结果。为缩小突变筛查的范围,明确Leigh综合征患儿的病因,亟待建立适用于临床检测应用的线粒体呼吸链酶学的测定方法。

关键词： Leigh综合征丙酮酸脱氢酶E1α亚单位线粒体DNA 突变

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丹参植株内生菌的分离纯化及其抗病性研究

西北植物学报 2016年第9期36卷 1813-1818页

作者：颜华何姣李素俭贾良辉李军超西北农林科技大学生命科学学院陕西杨陵712100

为探明丹参(Salvia miltiorrhiza Bge)内生菌的种类,筛选拮抗农作物病害菌的生防菌株,从健康丹参植株中进行内生菌分离,依照形态特征以及16SrDNA序列对菌株进行初步分类鉴定,采用琼脂块法进行拮抗菌株筛选,并选取拮抗活性较强的菌株液... 详细信息

为探明丹参(Salvia miltiorrhiza Bge)内生菌的种类,筛选拮抗农作物病害菌的生防菌株,从健康丹参植株中进行内生菌分离,依照形态特征以及16SrDNA序列对菌株进行初步分类鉴定,采用琼脂块法进行拮抗菌株筛选,并选取拮抗活性较强的菌株液体发酵进行体外抑菌试验。结果表明:(1)从丹参植株中共分离得到69株内生菌(真菌62株、放线菌7株),其中23株内生真菌属于无孢类群或现有条件不适合产孢,其余真菌菌株中串珠镰孢菌属(Fusarium moniliforme Sheld.)和交链孢菌属(Alternaria sp)为优势菌群;7株内生放线菌均为链霉菌属。(2)病原菌拮抗性实验表明,有44株内生菌对病原菌具有不同程度的拮抗活性,其中12株内生菌对2种及以上靶标病原菌具有拮抗活性,表明丹参内生菌具有一定的广谱抗菌性。(3)放线菌菌株A232的次级代谢产物对白色假丝酵母(Canidia albicans)和苹果腐烂菌(Valsa mali)都表现出较强的拮抗活性,通过形态、培养特征以及16SrDNA序列分析,鉴定其为Streptomyces luteoverticillatus。

关键词：内生菌丹参分离拮抗性

Comparison of the Hypoglycemic, Hypolipidemic and Hepatoprotective Effects of<i>Asparagus racemosus</i>Linn. in Combination with Gliclazide and Pioglitazone on Alloxan-Induced Diabetic Rats

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Pharmacology & Pharmacy 2017年第2期8卷 52-74页

作者： Abdullah Al Mamun Mahbubul Hossain Md.Sahab Uddin Md.Tanjir Islam Sajjad Hossain Md.Sarwar Hossain Md.Farhad Hossain Ataur Rahman sujan Mamunur Rashid Md.Mahbubur Rahman A.F.M.Towheedur Rahman Department of Pharmacy Southeast UniversityDhakaBangladesh School of Biosciences and Veterinary Medicine University of CamerinoCamerinoItaly Department of Physical Therapy Graduate School of Inje UniversityGimhaeKorea Department of Pharmacy University of Asia PacificDhakaBangladesh Department of Pharmacy University of RajshahiRajshahiBangladesh Department of Pharmaceutical Sciences North South UniversityDhakaBangladesh

In recent years, the popularity of medicinal plants as a remedy has been increased manifold due to having minimal adverse effects. The current study aimed to compare the hypoglycemic, hypolipidemic and hepatoprotective effects of the ethanolic extract of Asparagus racemosus (EEAR) Linn. alone and combinedly with conventional antidiabetic agents (gliclazide and pioglitazone) in alloxan-induced diabetic rats. Diabetes was induced in male Wister albino rats by the administration of single intra-peritoneal injection of alloxan monohydrate (120 mg/kg b.w.). Effect of oral administration of two different doses of EEAR (200 and 400 mg/kg b.w.), gliclazide (10 mg/kg b.w.) and pioglitazone (10 mg/70kg/b.w.) alone for 2 weeks and a combination of EEAR (200 mg/kg b.w.) with either gliclazide (10 mg/kg b.w.) or pioglitazone (10 mg/70kg/b.w.) for 2 weeks were examined on hypoglycemic activity on 0th, 5th, 10th and 14th day of treatment. After 2 weeks of treatment, hypolipidemic and hepatoprotective effects were estimated by serum biochemical markers such as total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL), very low density lipoprotein (VLDL), high density lipoprotein (HDL), serum glutamate oxaloacetate transaminases (SGOT), serum glutamate pyruvate trans-aminases (SGPT) and total protein (TP) with the help of commercially available kits. The survival rate, body weight and organ weight were also measured. Alloxan treatment resulted in persistent hyperglycemia, hyperlipidemia and liver dysfunction in rats. Treatment with EEAR at different doses improved hyperglycemia significantly (p th and 14th day of treatment in a dose-dependent mood when compared to the disease control rats, gliclazide treated rats and pioglitazone treated rats. The combination therapy significantly (p th, 10th and 14th day of treatment as compared to that of disease control rats, gliclazide treated rats and pioglitazone treated rats. Proposed adjunct therapy also markedly (p < 0.001;p

关键词： Diabetes Mellitus Asparagus racemosus Gliclazide Pioglitazone Combination Therapy

血浆总同型半胱氨酸测定在智力低下等神经精神异常病因调查中的应用

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临床儿科杂志 2008年第12期26卷 1013-1015,1020页

作者： Sayami sujan 张尧杨艳玲魏晓琼江剑辉宋金青刘平燕容东锦华田熠华王兰凤姜玉武秦炯吴希如北京大学第一医院北京100034 广东省广州市妇婴医院广东广州510180 北京大学生育健康研究所北京100086

目的调查原因不明的神经精神异常及甲基丙二酸尿症患儿中同型半胱氨酸血症的发生情况,探讨荧光偏振免疫测定法进行血浆或血清总同型半胱氨酸测定的应用价值。方法对2000年1月至2007年12月因原因不明的智力低下、运动障碍、癫疒间、头痛... 详细信息

目的调查原因不明的神经精神异常及甲基丙二酸尿症患儿中同型半胱氨酸血症的发生情况,探讨荧光偏振免疫测定法进行血浆或血清总同型半胱氨酸测定的应用价值。方法对2000年1月至2007年12月因原因不明的智力低下、运动障碍、癫疒间、头痛等多种神经系统异常患儿799例,甲基丙二酸尿症126例患儿,采用荧光偏振免疫测定法检测血液总同型半胱氨酸,气相色谱质谱联用分析测定尿液有机酸,液相串联质谱法进行血液氨基酸、酯酰肉碱谱分析。结果925例高危患儿中共发现同型半胱氨酸血症128例(13.84%)。799例原因不明的神经系统疾病患儿中同型半胱氨酸血症27例(3.38%),血液丙酰肉碱及游离氨基酸浓度正常。126例甲基丙二酸尿症患儿中合并同型半胱氨酸血症101例(80.16%),血液丙酰肉碱浓度增高。结论甲基丙二酸尿症合并同型半胱氨酸血症是甲基丙二酸尿症的主要临床表型,为鉴别诊断、正确治疗,应及早进行血液总同型半胱氨酸测定。应用荧光偏振免疫测定法检测血清/血浆总同型半胱氨酸,是同型半胱氨酸血症高危筛查的可靠方法。

关键词：智力低下同型半胱氨酸血症甲基丙二酸尿症丙酰肉碱