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Volume 5, Issue 4最新文献

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Eyeball Controlled Wheelchair 眼球控制轮椅
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp238-247
: A basic wheelchair is a gadget for people influenced by moderate, extreme physical incapacities andinterminable disease. It is also meant for the elderly people. Many people with disabilities cannot manage theenergized wheelchair operating joystick, sound, furthermore, hand developments as it is harder for the individual todo such specific tasks also it is programming focused. This strategy comprises of equipment which reduces theperson's work utilizing the image processing method. This model comprised of a camera that tracks the eyeballmovement and hence the position of the pupil by the image processing technique. And thereby the wheelchair isconstrained by a user’s eye gesture in an indoor space. When the development has been initiated and it is given tothe Raspberry pi for processing. The procedure relies on the feed coding and an output is given into the drivercircuit. Likewise, the hindrance location sensors will be associated as an Emergency Brake that gives necessaryconditions for the conventional activity of the wheelchair framework. Every one of the four wheels are associatedwith a driving circuit that moves the wheelchair
基本轮椅是为那些有中度、极端身体残疾和长期疾病的人提供的工具。它也适用于老年人。许多残疾人不能控制轮椅的操纵杆,声音,此外,手的发展,因为个人很难完成这些特定的任务,而且它是编程的重点。该策略包括利用图像处理方法减少人的工作的设备。这个模型由一个摄像头组成,通过图像处理技术跟踪眼球运动,从而跟踪瞳孔的位置。因此,在室内空间中,轮椅受到使用者眼神手势的限制。当开发已经启动并交给树莓派进行处理时。该过程依赖于馈送编码,并将输出输入驱动电路。同样,障碍物定位传感器将作为紧急制动器相关联,为轮椅框架的常规活动提供必要的条件。四个轮子中的每一个都与驱动轮椅的驱动电路相关联
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引用次数: 3
Conception of open spaces- A Case of Delhi Courtyard Houses 开放空间的概念——以德里四合院为例
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp87-105
Concerns for the future of our environment, with regards to climate change, scarcity of resources,population growth, and globalization are growing, we need alternative solutions as to how can we reduce thenegative impact of all the above on the planet while catering the needs of the mass. Only recently has there beendebates if or not vernacular and traditional aspects of architecture can be the key to the required change.Courtyards and open spaces are one of the attributes of vernacular architecture that needs to be discussed in theabove context. The importance of these spaces had already been proven for different climatic conditions. However,there is a need to justify this kind of open space typology in the lights of contemporary architecture of ametropolitan city like Delhi which is having a diverse urban fabric, a high rate of influx, and also culturaldiversification. Given that the most common and relatable architectural typology is the dwelling, and it is subjectedto a rapid transformation concerning its built as well as use. The following case takes into consideration theresidential open spaces of Delhi through a comparative study of residential courtyard spaces of Delhi hence, thepaper tries to form a conception of open spaces in the residential typology of Delhi post-independence and hence,tries to study the dwellings of the same time dating from the 1950s till date it also provides the reader an insight tothe reasoning of flattening of built forms that have emerged in today’s era, despite the heterogeneity of people andwhat are the possible solutions to this through the understanding of courtyard spaces and use its functional benefitslike comfort and a sense of belongingness.
对未来环境的担忧,包括气候变化、资源短缺、人口增长和全球化都在增长,我们需要替代的解决方案,以减少上述所有因素对地球的负面影响,同时满足大众的需求。直到最近,人们才开始争论建筑的本土和传统方面是否能成为所需变革的关键。庭院和开放空间是乡土建筑的属性之一,需要在上述语境中讨论。这些空间的重要性已经在不同的气候条件下得到了证明。然而,在像德里这样的大都市的当代建筑中,有必要证明这种开放空间类型的合理性,因为德里拥有多样化的城市结构,高流入率和文化多样性。考虑到最常见和最相关的建筑类型是住宅,它在建造和使用方面都受到快速转变的影响。下面的案例通过对德里住宅庭院空间的比较研究,考虑了德里的住宅开放空间,因此,本文试图在德里独立后的住宅类型学中形成开放空间的概念,因此,试图研究从20世纪50年代到现在的同一时期的住宅,它也为读者提供了一个洞察到在当今时代出现的建筑形式扁平化的原因。尽管人们存在异质性,但通过对庭院空间的理解,并利用其功能优势,如舒适性和归属感,可能的解决方案是什么。
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引用次数: 0
Review of Chemical, Pharmacological, Biological Activities of Isatinand Its Derivatives – Part-2 (2002 To 2020) isatinin及其衍生物的化学、药理、生物活性综述(2002 - 2020)
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp288-307
: Isatin is a naturally occurring substance identified in humans, animals, plants and coal tar. Isatinderivatives are reported to possess a wide range of activites. This review is in continuation of “Part-1 (1877-2002)”review published by our team. This review encompasses the most signigicant reports published during 2002 to 2020on the biological & pharmacological activites of isatin and its derivatives. The review includes the varioussynthetic reactions of isatin and activites reported. The pharmacological and biological activites reported wereantimicrobial, antineoplastic & related activities; analgesic, anti-inflammatory, anticonvulsant, antioxidant, activityagainst veterinary pathogen, effects on cardiac & vascular smooth muscles; transthyretin fibrillogenesis inhibitorand antiglycation activity of isatin compounds.
Isatin是一种天然存在的物质,存在于人类、动物、植物和煤焦油中。据报道,Isatinderivatives具有广泛的活性。这篇综述是我们小组发表的“Part-1(1877-2002)”综述的延续。本综述涵盖了2002年至2020年间发表的关于isatin及其衍生物的生物学和药理学活性的最重要的报告。综述了isatin的各种合成反应和已报道的活性。所报道的药理和生物活性为抗菌、抗肿瘤及相关活性;镇痛、抗炎、抗惊厥、抗氧化、抗兽用病原体、对心脏血管平滑肌的作用;胰脏素化合物的转甲状腺素纤维生成抑制及抗糖化活性。
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引用次数: 0
Formulation, Development and Evaluation of Lopinavir LoadedPolymeric Micelles 洛匹那韦聚合物胶束的制备、开发与评价
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp173-187
Lopinavir is the anti HIV drug which is used to treat the HIV-1 infection. In this study we used the singlelopinavir drug to formulate the polymeric micelle. This study was done with the two main objectives asObjective:first to enhance the solubility and bioavailability of the BCS class IV drug and second to avoid thecombination of lopinavir rand ritonavir and use single lopinavir to preparation of polymeric micelle also to avoidthe disadvantages related to the oral administration. Method:The different pluronic (F188 &F127) and co-solvent(Tween80) were chosen & the micelles were prepared by using different Drug: polymer ratio with or without cosolvent and drug Lopinavir. Formulations were been characterized by critical micelle concentration(CMC) value,micellesize,DSC, XRD, loading efficiency, % drug loading and stability.Result:Mixed micelle (hydrophobic&hydrophilic) obtained from optimized batch shows the highest entrapment of 29%with the pluronic F68 with theuse of co-solvent and the vesicle size of 0.156µm the DSC, FTIR, XRD study was also done for lopinavir andoptimized formulation .Conclusion: The pluronic F68 with the co-solvent showed fairly high entrapment efficiency,loading capacity than the mixed Pluronic in combination
洛匹那韦是一种抗HIV药物,用于治疗HIV-1感染。在这项研究中,我们使用单洛匹那韦药物来制备聚合物胶束。本研究主要有两个目的:一是为了提高BCS IV类药物的溶解度和生物利用度,二是为了避免洛匹那韦和利托那韦合用,并使用单个洛匹那韦制备聚合物胶束,同时避免口服给药的缺点。方法:选择不同的pluronic (F188 & f127)和助溶剂(Tween80),用不同的药聚合物比制备胶束,并分别加入或不加入助溶剂和药物洛匹那韦。采用临界胶束浓度(CMC)值、胶束大小、DSC、XRD、载药率、载药率、稳定性等指标对配方进行表征。结果:经优化后得到的混合胶束(亲疏水)的包封率最高,为29%,囊泡大小为0.156µm。并对洛匹那韦和优化后的配方进行了DSC、FTIR、XRD研究。结论:与复配溶剂相比,复配溶剂的复配F68包封率和载药量均较高
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引用次数: 4
Performance Evaluation of EMG Pattern Recognition TechniquesWhile Increasing The Number of Movement Classes 增加运动类数时肌电模式识别技术的性能评价
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp248-260
:In the past few years of research done in the field of myoelectric control, many researchers have proposedseveral models imploying a combination of different features and classifiers to increase the movement classes, butall that work fails to explain if there is any correlation between multi-class classification and its accuracy. Thispaper focuses on finding the factors that decide the limit of movement classes that machine learning algorithms canaccurately differentiate and to evaluate the performance of pattern classification techniques using the sEMG signalwhen the number of movement classes is increased while keeping the simplicity of the system. The results wereobtained for eight channels sEMG signal using 7 independent time-domain features and four feature setcombinations over 4 classifiers (Support Vector Machine(SVM), K-Nearest Neighbour(K-NN), Decision Tree(DT),and Naïve Bayes(NB)). Then the number of classes was increased in the manner of 5, 7, 10, 12, and 15 classes todetermine the highest number of movement classes that the sEMG system with above-described features can classifyefficiently. And the effect of increasing the number of movement classes on system accuracy was observed. Thehighest accuracies for all five class progression were obtained for SVM with the MFL feature, and for DT usingMAV, it was successfully observed that the NB classifier had minimum performance depletion for the features usedin this work
在过去几年的肌电控制领域的研究中,许多研究人员提出了几种模型,利用不同的特征和分类器的组合来增加运动类别,但这些工作都未能解释多类别分类与其准确性之间是否存在任何相关性。本文的重点是寻找决定机器学习算法能够准确区分的运动类限制的因素,并在保持系统简单性的同时增加运动类的数量,使用表面肌电信号评估模式分类技术的性能。通过4种分类器(支持向量机(SVM)、k -近邻(K-NN)、决策树(DT)和Naïve贝叶斯(NB)),使用7个独立的时域特征和4个特征集组合,获得了8通道表肌电信号的结果。然后以5、7、10、12、15个类别的方式增加类别的数量,以确定具有上述特征的表面肌电信号系统能够有效分类的运动类别的最高数量。并观察了增加运动类数对系统精度的影响。使用MFL特征的SVM获得了所有五个类进展的最高精度,对于使用mav的DT,成功地观察到NB分类器对于本工作中使用的特征具有最小的性能损耗
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引用次数: 0
Challenges and Trends in Clinical Data Analytics 临床数据分析的挑战和趋势
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp348-360
:Today’s technological advancements facilitated the researcher in collecting and organizing various formsof healthcare data. Data is an integral part of health care analytics. Drug discovery for clinical data analytics formsan important breakthrough work in terms of computational approaches in health care systems. On the other hand,healthcare analysis provides better value for money. The health care data management is very challenging as 80%of the data is unstructured as it includes handwritten documents, images; computer-generated clinical reports suchas MRI, ECG, city scan, etc. The paper aims at providing a summary of work carried out by scientists andresearchers who worked in health care domains. More precisely the work focuses on clinical data analysis for theperiod 2013 to 2019. The organization of the work carried out is specifically with concerned to data sets,Techniques, and Methods used, Tools adopted, Key Findings in clinical data analysis. The overall objective is toidentify the current challenges, trends, and gaps in clinical data analysis. The pathway of the work is focused oncarrying out on the bibliometric survey and summarization of the key findings in a novel way.
当今的技术进步促进了研究人员收集和组织各种形式的医疗保健数据。数据是医疗保健分析的一个组成部分。临床数据分析的药物发现是医疗保健系统中计算方法的重要突破。另一方面,医疗保健分析提供了更好的物有所值。医疗保健数据管理非常具有挑战性,因为80%的数据是非结构化的,因为它包括手写文档,图像;计算机生成的临床报告,如MRI、ECG、城市扫描等。这篇论文的目的是提供一个由在卫生保健领域工作的科学家和研究人员所开展的工作的总结。更准确地说,工作重点是2013年至2019年的临床数据分析。所开展工作的组织具体涉及临床数据分析中的数据集、使用的技术和方法、采用的工具、主要发现。总体目标是确定临床数据分析中当前的挑战、趋势和差距。本文的工作路径是以一种新颖的方式进行文献计量调查和关键发现的总结。
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引用次数: 0
Sphingosomes: A Novel Lipoidal Vesicular Drug Delivery System 鞘体:一种新型脂质囊状给药系统
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp261-267
S. Chaudhari, Sneha U. Gaikwad
Vesicular drug delivery system has various advantages thereby improving therapeutic efficacy and bysustaining and controlling action of drugs. Liposomes, sphingosomes, ethosomes, cubosomes, pharmacasomes,niosomes, transferosomes are the newly developed vesicular drug delivery system. This review article mainly dealswith the sphingosomal drug delivery system. Sphingosomes are vesicular drug delivery systems in which an aqueousvolume is enclosed with sphingolipid bilayer membranes. Sphingosomes has an enhanced area of interest because oftheir applicability in improving the in vivo delivery of various chemotherapeutic agents, biological macromoleculesand diagnostics. Sphingosome has major advantages over other vesicular drug delivery systems like high stability,more in vivo circulation time, high tumor loading efficacy in case of cancer therapy as compared to liposomes,niosomes etc. Sphingosomes are clinically used vesicular delivery system for chemotherapeutic agent, biologicalmacromolecule and diagnostics. This review concluded that sphingosome represents a promising vesicular drugdelivery system for a range of possible therapeutic applications.
囊泡给药系统具有多种优点,通过维持和控制药物的作用来提高治疗效果。脂质体、鞘体、脂质体、立方体体、药质体、乳质体、转移体是近年来发展起来的囊状给药系统。本文主要对鞘体给药系统进行综述。鞘小体是囊状药物传递系统,其水体积被鞘脂双层膜包裹。鞘小体具有增强的兴趣领域,因为它们在改善各种化疗药物,生物大分子和诊断的体内递送方面的适用性。与其他囊泡给药系统相比,鞘小体具有稳定性高、体内循环时间长、肿瘤负载效率高等优点。鞘小体是临床上用于化疗药物、生物大分子和诊断的囊泡输送系统。本综述认为鞘小体是一种具有广泛应用前景的囊泡给药系统。
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引用次数: 3
Frequency Based Damage Detection and Localization of PropellerShaft of a Ship Using Experimental Modal Analysis 基于实验模态分析的舰船螺旋桨轴频率损伤检测与定位
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp188-198
: The whole ship is dependent on the propeller shaft for its movement, the vibrations produced from theshaft destabilizes the whole ship and may lead to accidents. With this objective in mind, in this paper, we describe amethodology to detect and locate the crack present in the intermediate simply supported shaft using experimentalmodal analysis. In the present work, 304 stainless steel material shaft is taken as the specimen as it is one of themost versatile and widely used steels in the world for making different shafts used in any machinery equipment likeships propeller shaft, engine shafts, motor shafts. Initially, analytical analysis is done on the simply supported shaftthen numerical modal analysis using ANSYS 2019 R3 software. Results obtained from the numerical modal analysisare compared with the experimental modal analysis which is done using FFT analyzer. Finally, the first threenatural frequencies are used as a tool to detect damage detection and location in the propeller intermediate shaft
当前位置整艘船的运动依赖于传动轴,传动轴产生的振动会使整艘船失去稳定,并可能导致事故。考虑到这一目标,在本文中,我们描述了使用实验模态分析来检测和定位中间简支轴中存在的裂纹的方法。304不锈钢材料轴是世界上用途最广泛的钢之一,可用于制造各种机械设备的轴,如螺旋桨轴、发动机轴、电机轴等。本研究以304不锈钢材料轴为样品。首先对简支轴进行分析分析,然后使用ANSYS 2019 R3软件进行数值模态分析。将数值模态分析结果与实验模态分析结果进行了比较。最后,利用前三个固有频率作为检测工具,对螺旋桨中间轴进行损伤检测和定位
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引用次数: 1
Formulation and Characterization of Tranylcypromine loadedPolymeric Micellar In-Situ Nasal Gel for treatment of Depression 三酰环丙胺负载聚合物胶束原位鼻凝胶治疗抑郁症的制备及表征
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp149-165
:Tranylcypromine is a drug used as antidepressant,anxiolytic, nonselective MAO A/B inhibitor. This drugis used to treat depression.The research was conducted to develop a polymeric micelle using a block copolymer,Pluronic F-68 and Gelucire 50/13 to improve the permeability of Tranylcypromine (TCP). A direct dissolutionmethod was used to prepare polymeric micelles. The prepared micelles were characterised for particle size, % EE,zeta potential, in-vitro release. These micelles solution was used to prepare in situ gel by cold method in order toachieve controlled release. Central composite design was used for optimization of both polymeric micelles and insitu nasal gel.The main objective of this research work is to develop formulation acting centrally withoutundergoing first pass metabolism i.ie. directly nasal to brain delivery route.
这种药是用来治疗抑郁症的。该研究采用嵌段共聚物Pluronic F-68和Gelucire 50/13开发聚合物胶束,以提高丙基环丙氨酸(TCP)的渗透率。采用直接溶解法制备了聚合物胶束。对制备的胶束进行了粒径、EE、zeta电位、体外释放度等表征。将这些胶束溶液用冷法制备原位凝胶,以达到控释目的。采用中心复合设计对聚合物胶束和原位鼻凝胶进行优化。本研究工作的主要目的是研制出不经过第一次代谢即集中作用的制剂。直接鼻腔到脑部的输送途径。
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引用次数: 1
Review on Smart Bottle Dispenser And Filling Plant UsingIndustrial IoT 应用工业物联网的智能瓶分配器和灌装设备综述
Pub Date : 2020-07-30 DOI: 10.46243/jst.2020.v5.i4.pp143-148
Up to yet, there are so many industries are working on manual process. But due to an increase intechnology and automation, most of the industries are now becomes worker less i.e. fully automated. There is therequirement of the laborers which makes the industries full of errors and decreases work rate to improve it andreduce errors automation are used. Most of which is performed by pneumatic actuators with electrical andautomation control. there are lots of difference between a traditional factory and fully automated industry 4.0 basedfactory In the current industry environment, providing high-end quality service or product with the least cost is thekey to success and industrial factories are trying to achieve as much performance as possible to increase their profitas well as their reputation in current industries there is the utilization of data, finding errors in the system, analysisof system performance are done very efficiently but there is lots of contrast between the traditional industry andindustry 4.0 based industry is that in the industry not only data analysis can be done but also in addition tocondition monitoring and fault diagnosis, components and systems able to get self-based awareness, this willprovide management system with insights for the status of the factory. Hence it will provide the best performancewith better management and controlling processes with better time management.This paper describes the automation process of dispensing and filling the bottles of different sizes using IndustrialIoT. This process can be used for industrial purposes.
到目前为止,有很多行业都在使用手工流程。但由于技术和自动化的提高,大多数行业现在变得更少工人,即完全自动化。由于对工人的要求,使得工业中充满了错误,降低了工作效率,从而提高了工作效率,减少了错误。其中大部分由带有电气和自动化控制的气动执行器执行。在当前的工业环境中,以最低的成本提供高端优质的服务或产品是成功的关键,工业工厂正在努力实现尽可能多的性能,以增加他们的利润以及他们在当前行业的声誉,有数据的利用,在系统中发现错误,对系统性能的分析非常有效,但传统工业和基于工业4.0的工业之间有很多对比,在工业中不仅可以进行数据分析,还可以进行状态监测和故障诊断,组件和系统能够获得基于自我的意识,这将为管理系统提供对工厂状态的见解。因此,它将提供最好的性能与更好的管理和控制过程与更好的时间管理。本文介绍了利用IndustrialIoT对不同尺寸的瓶子进行点胶和灌装的自动化过程。这一过程可用于工业目的。
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引用次数: 0
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