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A study on the reliability and performance of solar powered street lighting systems 太阳能路灯系统的可靠性和性能研究
Pub Date : 2017-08-18 DOI: 10.14419/IJSW.V5I2.8109
A. A. Fashina, S. T. Azeko, J. Asare, C. Ani, V. Anye, E. R. Rwenyagila, B. Dandogbessi, O. Oladele, M. Dyeris
This paper presents the results of a study on the reliability and performance of the solar-powered street lighting systems installed at the African University of Science and Technology (AUST) in Nigeria, a hot and humid environment. The technical performance of the systems was studied using the following performance indicators: system energy yield, capture loss, as well as the system performance ratio while the reliability of the systems was examined using a model developed from the findings from the maintenance and fault diagnosis of the systems. The model was used to predict the total failure and survival probability of the systems using the Weibull distribution. The performance evaluation during the monitored period (February 2012 to January 2015) indicated that the performance ratios of the systems vary from 70% to 89% and the energy yields of the systems ranging from 2.87 h/day to 5.57 h/day. The results from the reliability analysis also showed that when the stress concentration factor around the notch between the cable terminals in the charge controller increases, the charge controller will become overheated, which in turn affected other components of the systems. The implications of this study are also discussed for the design and development of future solar-powered street lighting systems.
本文介绍了在炎热潮湿的尼日利亚非洲科技大学(AUST)安装的太阳能街道照明系统的可靠性和性能研究结果。系统的技术性能使用以下性能指标进行研究:系统能量产出、捕获损失以及系统性能比,而系统的可靠性则使用从系统维护和故障诊断的发现中开发的模型进行检查。该模型采用威布尔分布预测系统的总失效概率和生存概率。监测期间(2012年2月至2015年1月)的性能评价表明,系统的性能比率为70% ~ 89%,发电量为2.87 h/d ~ 5.57 h/d。可靠性分析结果还表明,当充电控制器电缆端子间缺口周围的应力集中系数增大时,充电控制器会过热,进而影响系统的其他部件。本研究对未来太阳能街道照明系统的设计和发展也有启示。
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引用次数: 12
Analysis of Food Adulterants in Selected Food Items Purchased From Local Grocery Stores 从本港食杂店购入的若干食物中所含食物掺假物的分析
Pub Date : 2017-07-30 DOI: 10.7439/IJASR.V3I7.4299
Sukumaran M. K., Navya P, Raju K.
Food is one among the basic needs for every living being. Food for human consumption should be in its possible purest form without adulterants and contaminants.  The present study focuses on analyzing few selected food items purchased from local grocery stores located in the twin cities of Secunderabad and Hyderabad, Telangana. The extent of different adulterant present in the food items were, edible oil samples, argemone oil (30%), prohibited color (15%), mineral oil (20%), dyes in fat (15%) and castor oil (0%).  20% of ghee samples tested positive for vanaspathi and were negative for mashed potatoes and paraffin wax (0%).  Coconut oil tested negative both for any other oil (0%) and turbidity (0%). None of the honey samples tested positive for water (0%). All the jaggery samples tested were negative for sodium bicarbonate (0%). Similar results were obtained in case of curd samples (negative for dalda (0%)). 55% of the common salt samples tested positive for the presence of impurities.
食物是每个生物的基本需求之一。供人类食用的食品应尽可能以最纯净的形式存在,不含掺杂物和污染物。本研究的重点是分析从位于特伦加纳邦塞昆德拉巴德和海得拉巴双城的当地杂货店购买的少数精选食品。食品中掺假的程度分别为:食用油样本、argemone油(30%)、违禁色素(15%)、矿物油(20%)、脂肪中的染料(15%)及蓖麻油(0%)。20%的酥油样品对vanaspathi呈阳性,对土豆泥和石蜡呈阴性(0%)。椰子油对任何其他油(0%)和浊度(0%)的检测均为阴性。所有蜂蜜样本均未检测出水阳性(0%)。所有的粗糖样品检测碳酸氢钠均为阴性(0%)。凝乳样品也得到了类似的结果(dalda阴性(0%))。55%的普通食盐样品被检测出含有杂质。
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引用次数: 10
Biofortification of Wheat with Iron 用铁生物强化小麦
Pub Date : 2017-07-30 DOI: 10.7439/IJASR.V3I7.4275
Ambash Riaz, N. Huda, A. Abbas, S. Raza
In various micronutrient-deficient countries, wheat is used as staple food, comprise more than 50% of the diet. Like many staple foods, wheat contain low concentration of iron (Fe). About two billion people globally have iron deficiency, especially in the regions where staple foods are based on cereal crops such as wheat. Because of high rate of Fe deficiency cases, increased Fe intake through staple food has become the main focused research area globally. As wheat is main source of protein and dietary energy for human beings, its potential to support reducing malnutrition related to Fe can be increased through producing genetically modified wheat varieties with high concentration of Fe. High Fe concentration in cereal crop is a major challenge. Even though during wheat is commonly fortify, promising and more long term solution is biofortification of wheat, which bases on the production of new wheat varieties with characteristically higher concentration of iron. Till now, may researches, which focused on increasing Fe in wheat, aimed at producing natural varieties in progenitor or related species. This review focused on the promising and sustainable approaching to maintain the improve concentration of iron in wheat.
在各种微量营养素缺乏的国家,小麦被用作主食,占饮食的50%以上。像许多主食一样,小麦的铁含量很低。全球约有20亿人缺铁,特别是在以小麦等谷类作物为主食的地区。由于我国铁缺乏率高,通过主食增加铁的摄入已成为全球关注的主要研究领域。小麦是人类蛋白质和膳食能量的主要来源,可通过生产富含铁的转基因小麦品种来增加其支持减少铁相关营养不良的潜力。高铁是粮食作物面临的主要挑战。尽管在小麦通常被强化,但更有前途和更长期的解决方案是小麦的生物强化,这是基于生产具有更高铁浓度特征的新小麦品种。到目前为止,许多以提高小麦铁含量为重点的研究,都是为了在其祖种或近缘种中培育出天然品种。本文综述了小麦铁含量持续提高的途径。
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引用次数: 10
Assessment of post operative wound healing in diabetic patients after extraction 糖尿病患者拔牙术后创面愈合的评价
Pub Date : 2017-07-28 DOI: 10.7439/IJASR.V3I7.4210
B. Gupta
Diabetes is a common metabolic disorder characterised by an inability to regulate blood glucose due to insulin deficiency or resistance. Type 1 diabetes or insulin dependent diabetes is characterised by deficient insulin production whereas type II or non-insulin dependent diabetes results from relative insulin deficiency and tissue insulin resistance. Traditionally in dentistry, diabetics are considered to have increased healing problems related to dental extractions, periodontal surgery and wearing ill-fitting dentures. They are also considered more likely to have infections. Although this may be so for poorly controlled Type 1 diabetics, there is only unreliable support for this view for Type 2 diabetics on oral hypoglycemics. In dentoalveolar surgery, diabetic patients could be expected to suffer various complications to those observed in other surgical procedures such as the most commonly seen is delayed wound healing. However, the oral environment with the forces of mastication, high bone turnover, high vascularity, saliva and the constant reservoir of microorganisms is active from other parts of the body, thereby making generalisations from other surgical sites limited. Difficulties with extractions are unpredictable. Having a thorough medical history prior to surgery will allow the surgeon to better deal with complications that may arise. Be certain to always follow proper surgical techniques, and know your limitations prior to beginning any extractions. If and when difficulties develop, it is always recommended to explain the situation to the patient.
糖尿病是一种常见的代谢紊乱,其特征是由于胰岛素缺乏或抵抗而无法调节血糖。1型糖尿病或胰岛素依赖型糖尿病的特征是胰岛素分泌不足,而2型糖尿病或非胰岛素依赖型糖尿病是相对胰岛素缺乏和组织胰岛素抵抗的结果。传统的牙科医学认为,糖尿病患者在拔牙、牙周手术和佩戴不合适的假牙方面的愈合问题会增加。他们也被认为更容易感染。虽然这可能适用于控制不良的1型糖尿病患者,但对于口服降糖药的2型糖尿病患者,这一观点只有不可靠的支持。在牙槽牙外科手术中,糖尿病患者可能会出现与其他外科手术不同的并发症,如最常见的是伤口愈合延迟。然而,口腔环境具有咀嚼力、高骨周转率、高血管、唾液和持续的微生物库,从身体的其他部位活跃,因此从其他手术部位进行概括是有限的。提取的困难是不可预测的。在手术前有一个完整的病史可以让外科医生更好地处理可能出现的并发症。一定要始终遵循适当的手术技术,并知道你的局限性之前,开始任何拔牙。如果出现困难,总是建议向患者解释情况。
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引用次数: 5
Preparation and characterization of PEG-assisted growth of colloidal Ag nanoparticles 聚乙二醇辅助生长胶体银纳米颗粒的制备与表征
Pub Date : 2017-07-06 DOI: 10.7439/IJASR.V3I6.4236
E. M. Mohamed, W. Eisa, T. Abdel-Baset, S. Mahrous
Colloidal Silver nanoparticles were prepared under mild conditions using poly (ethylene glycol) (PEG) in the presence of PVA as surfactant. Ethylene glycol was used as a reducing agent for the preparation of metal particles at room temperature. Ag +1 can be smoothly reduced to silver nanoparticles at ambient condition in PEG 400. UV-visible studies demonstrated that the reducing rate of Ag +1 to nano-Ag was remarkably enhanced with the increased amount of the PEG. The transmission microscope images prove that the reduced Ag nanoparticles were spherical in shape. The pathway described here was considered as a green route for preparation of silver nanoparticles.
以聚乙二醇(PEG)为原料,聚乙烯醇(PVA)为表面活性剂,在温和条件下制备了胶体银纳米颗粒。以乙二醇为还原剂,在室温下制备金属颗粒。在peg400中,Ag +1在环境条件下可以顺利还原为银纳米粒子。紫外可见研究表明,随着PEG用量的增加,Ag +1还原成纳米Ag的速率显著提高。透射显微镜图像表明,还原的银纳米颗粒呈球形。这里描述的途径被认为是制备纳米银的绿色途径。
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引用次数: 2
Economics of Maize (Zea mays L.) production in Nigeria and Maize traditional utilization 尼日利亚玉米(Zea mays L.)生产经济学和玉米传统利用
Pub Date : 2017-06-27 DOI: 10.14419/IJSW.V5I2.7819
Monday Sunday Adiaha
A survey on economics of Maize (Zea mays L.) production in Nigeria and its traditional utilization was conducted. Result of the survey presented maize having the potential of increasing the economy of the nation. Analyzed data presented maize been able to increase the income of the local people and foreign exchange earnings, as observed where price of the crop during 1980 (2500) stands below price at 1989 (14000). Increased in land utilization with increase in years was observed in data analyzed as 1980 (95600 hectares) of land area stands below (211740) in1989. Traditional utilization of maize has been found to include where the crop is been used as herbal medicine, as food, in traditional religion, in-addition to where the crop is been utilized in marital rituals.
对尼日利亚玉米(Zea mays L.)生产和传统利用的经济状况进行了调查。调查结果表明,玉米具有促进国家经济发展的潜力。经分析的数据显示,玉米能够增加当地人民的收入和外汇收入,如1980年玉米价格(2500)低于1989年价格(14000)。在分析的数据中,土地利用随年份增加而增加,1980年(95600公顷)的土地面积低于1989年(211740公顷)。人们发现,玉米的传统用途除了用于婚礼仪式之外,还包括在传统宗教中将玉米用作草药、食物等。
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引用次数: 1
Zika virus, the way forward: Nigeria as case study 寨卡病毒,前进的道路:尼日利亚作为案例研究
Pub Date : 2017-06-27 DOI: 10.14419/IJSW.V5I2.7900
E. Modo, F. Okoro, B. O. Orji, Rex-Clovis C. Njoku
Zika Virus is a flavivirus that is responsible for an unprecedented current epidemic. It is an emerging mosquito borne virus that is a (+) sense single-stranded RNA virus from the Flaviviridae virus family, Flavivirus genre and the Zika virus specie. Zika virus bears a complex genome and virion structure. Its reproductive cycle in host cell involves virion endocytosis that allows entrance into host cell. Zika virus infection gives symptoms that are usually mild and last for few days and infection can be easily transferred from infected mosquitoes, from a pregnant woman to her fetus, sexual intercourse, blood transfusion, and laboratory exposure. Several methods are made available for the diagnosis of this infection and several ways to prevent this infection such as elimination and control of mosquito, prevention of mosquito bites and public awareness about Zika and mosquitoes. No vaccines are available for treatment yet but common medications are advised for symptoms. The virus has been associated with fetal microcephaly in humans. Information is provided for the epidemiology of Zika virus to evaluate the level of risk for people who may be planning to travel to or are recently returning from areas with possible local transmission. In the African region this is done considering a number of factors and cases in the past. The rapid development of a safe and effective vaccine, genetically modified mosquitoes, use of bacteria, and other innovations are currently worked on to curb the spread of Zika virus.
寨卡病毒是一种黄病毒,它导致了目前前所未有的流行病。它是一种新兴的蚊媒病毒,是一种(+)感单链RNA病毒,来自黄病毒科病毒科、黄病毒类型和寨卡病毒种。寨卡病毒具有复杂的基因组和病毒粒子结构。它在宿主细胞内的繁殖周期包括病毒粒子的内吞作用,从而进入宿主细胞。寨卡病毒感染的症状通常很轻微,持续几天,感染很容易通过受感染的蚊子、孕妇向胎儿、性交、输血和实验室接触传播。有几种方法可用于诊断这种感染,也有几种方法可用于预防这种感染,如消灭和控制蚊子、预防蚊虫叮咬和提高公众对寨卡病毒和蚊子的认识。目前还没有疫苗可用于治疗,但建议使用普通药物治疗症状。该病毒与人类胎儿小头症有关。为寨卡病毒流行病学提供信息,以评估可能计划前往或最近从可能存在本地传播的地区返回的人的风险水平。在非洲区域,这样做是考虑到过去的一些因素和案例。为了遏制寨卡病毒的传播,目前正在快速开发安全有效的疫苗、转基因蚊子、使用细菌和其他创新手段。
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引用次数: 0
Metaproteomics approaches and techniques: A review 元蛋白质组学方法和技术综述
Pub Date : 2017-06-05 DOI: 10.7439/IJASR.V3I5.4167
A. Ameen, S. Raza
Extensive studies have been done on metagenomics for various microbial communities. The advancements in metagenomics level led to the need of metaproteomics approaches. Metaproteomics involve the identification, function and expression of various proteins present in microbial community, it also involves the identification and expression analysis of stress related proteins. The concepts of metaproteomics come with advancement in proteomics techniques which includes 2D gel electrophoresis for the identification of proteins and peptides in a particular microbial community. Mass spectrometry which is used to separate the proteins by desorption and ionization using a gas on a liquid medium. MALDI use for protein identification and separation, connected with TOF to give better results. The metaproteomics approaches become more advanced when HPLC and LC were used for peptides and protein with computational tools to sequence the peptide and protein. It is concluded that there is a requirement of research in metaproteomics. Many scientists have done research on these approaches but there is lack of better quality and desirable results.
对各种微生物群落的宏基因组学进行了广泛的研究。元基因组学水平的进步导致了对元蛋白质组学方法的需求。元蛋白质组学涉及微生物群落中各种蛋白质的鉴定、功能和表达,也涉及与胁迫有关的蛋白质的鉴定和表达分析。元蛋白质组学的概念是随着蛋白质组学技术的进步而出现的,其中包括用于鉴定特定微生物群落中蛋白质和肽的二维凝胶电泳。质谱法是用气体在液体介质上解吸和电离来分离蛋白质的方法。MALDI用于蛋白质的鉴定和分离,与TOF相结合可以得到更好的结果。当高效液相色谱和液相色谱用于多肽和蛋白质,并使用计算工具对多肽和蛋白质进行测序时,元蛋白质组学方法变得更加先进。因此,元蛋白质组学的研究是有必要的。许多科学家已经对这些方法进行了研究,但缺乏更好的质量和令人满意的结果。
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引用次数: 5
Study on the efficiency of continuous flow-based constructed wetland system for grey water treatment 基于连续流的人工湿地系统处理中水的效率研究
Pub Date : 2017-06-05 DOI: 10.7439/IJASR.V3I5.4198
R. C. Devi, N. D. Shrinithivihahshini, R. Viji
Water is inevitable for our life. Due to the population growth, there is a tremendous pressure on the existing fresh water resources such as surface water and ground water. Increasing water demand and improper usage of potable water lead to scarcity of fresh water resources. Globally, treating grey water is a real constraint to minimize the problem of water scarcity. The continuous flow-based constructed wetland system for grey water treatment is a technique for reusing the domestic grey water and it is a low-cost method. The current study was aimed to evolve a suitable user-friendly treatment system for handling the household grey water. In the present study, grey water has been collected from the Bharathidasan University and it has been treated with biofiltration and rhizhodegradation techniques using continuous flow-based constructed wetland system. The system has been found as more effective for treating the Physico-chemical parameters such as suspended solids, pH, electrical conductivity, TS, TDS, DO, BOD, COD, TOC, CO 3, HCO 3, SO 4 , NO 3 , PO 4 , Ca, Mg, Na, K, total hardness, calcium hardness, chloride, and total alkalinity. The results reported the reduction in the biological oxygen demand (89%), chemical oxygen demand (81%), DO (95%), carbonate (100%), sodium (65%), and potassium (85%).It also examined the benefits and risks associated with the results in the reuse of domestic grey water for the purpose of vegetable gardening, irrigation, and toilet flushing. Consequently, this biofiltration method is natural, simple, and low cost-effective treatment in a holistic manner.
水对我们的生活是不可避免的。由于人口的增长,对地表水和地下水等现有淡水资源造成了巨大的压力。用水需求的增加和饮用水的不当使用导致淡水资源的短缺。在全球范围内,处理灰水是最大限度地减少水资源短缺问题的真正限制。基于连续流的人工湿地系统处理中水是一种低成本的生活中水回用技术。本研究的目的是发展一种适合的用户友好的处理系统来处理家庭中水。在本研究中,收集了来自Bharathidasan大学的中水,并使用基于连续流的人工湿地系统对其进行了生物过滤和根瘤菌降解技术处理。该系统对悬浮物、pH、电导率、TS、TDS、DO、BOD、COD、TOC、CO 3、HCO 3、so4、no3、po4、Ca、Mg、Na、K、总硬度、钙硬度、氯化物和总碱度等理化参数的处理效果较好。结果显示,生物需氧量(89%)、化学需氧量(81%)、DO(95%)、碳酸盐(100%)、钠(65%)和钾(85%)的减少。它还审查了将生活中水用于蔬菜种植、灌溉和冲厕所的结果所带来的益处和风险。因此,这种生物过滤方法是一种自然、简单、低成本的整体处理方法。
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引用次数: 0
Comparison and evaluation of ambient air quality at different nearby locations of LCL plant, 2014 2014年LCL工厂附近不同地点环境空气质量的比较与评价
Pub Date : 2017-06-05 DOI: 10.7439/IJASR.V3I5.4166
S. Raza, J. Ahmad, A. Ameen
The monitoring of ambient air quality is very important to evaluate the effect of running industry on environment. The Lahore compost Pvt. Ltd. has its own composting plant that utilizes tons of municipal solid waste to make organic bio fertilizer. The tons of organic waste are transported to landfill site. This study was designed to check the effect of composting plant on nearby village, nearby roads and LCL site. The evaluated parameters for ambient air quality were PM 10, CO, TSP and VOC. The results were compared and it was concluded from this study that composting plant do not effect nearby locations. The results were according to the WHO standards.
环境空气质量监测是评价工业运行对环境影响的重要手段。拉合尔堆肥有限公司有自己的堆肥厂,利用成吨的城市固体废物制造有机生物肥料。成吨的有机废物被运到垃圾填埋场。本研究旨在检查堆肥厂对附近村庄、附近道路和LCL场地的影响。环境空气质量评价参数为PM 10、CO、TSP和VOC。通过比较研究结果,得出堆肥厂对附近地区没有影响的结论。结果符合世界卫生组织的标准。
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引用次数: 0
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International Journal of Advances in Scientific Research
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