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A Survey on Image Compression using Burrows Wheeler Transform 基于Burrows Wheeler变换的图像压缩研究综述
Pub Date : 2017-03-09 DOI: 10.21013/JTE.V6.N2.P3
Manasi Rath, Suvendu Rup
This paper is a methodological review paper on image compression using Burrows Wheeler Transform. Normally BWT is used for text compression but it has been recently applied to image compression field. Basically it is a lossless compression technique which is used for high level resolution.This paper proposes about several scheme added with BWT to improve the performance of image compression which helps us to formulate a new technique for the further improvement in BWT. Here many authorshave different type of representation of BWT for better compression.
本文是一篇关于使用Burrows Wheeler变换进行图像压缩的方法学综述。BWT通常用于文本压缩,但近年来已被应用于图像压缩领域。基本上,它是一种用于高分辨率的无损压缩技术。本文提出了几种加入小波变换来提高图像压缩性能的方案,为进一步改进小波变换提供了一种新的技术。为了更好地压缩,许多作者使用了不同类型的BWT表示。
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引用次数: 0
Logistics Network Design, Shipment Consolidation in a Distribution Centre – Warehouses – Customers Integrated Inventory Model 物流网络设计,配送中心-仓库-客户综合库存模型中的货物整合
Pub Date : 2017-02-28 DOI: 10.21013/JTE.V6.N2.P1
W. Ritha, S. Sutha
This paper presents a study on multi level customers from three integrated network design and management of inventory to distribute from the various centres.  The distribution process is performed through the warehouses situated in different location.  Then the assignment will be shipped through the agent of the distribution centres.  The main objective of this inventory model is to reduce the transportation and handling costs in the logistics network.  This network design to establish the proper shipment model for clear the inventory and to provide an equivalent linear formulation. To prove effectiveness of   the model, the strategy for handling the inventory is also proposed to in this study.  The results also suggested that the distribution centres with high holding capacities should be arranged and scheduled to deliver their shipments.
本文从三个集成网络的角度研究了多层次客户从各个中心配送的库存设计与管理。配送过程通过位于不同位置的仓库进行。然后,作业将通过配送中心的代理发货。该库存模型的主要目标是降低物流网络中的运输和处理成本。该网络旨在建立合适的运输模型,以清除库存,并提供等效的线性公式。为了证明模型的有效性,本研究还提出了库存处理策略。结果还表明,应安排和安排具有高储存能力的配送中心运送货物。
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引用次数: 1
Chemical Profile and Extraction Technique of Oil of Mentha Arvensis 薄荷油化学性质及提取工艺研究
Pub Date : 2017-02-28 DOI: 10.21013/JTE.V6.N2.P2
M. Nadeem, B. Saxena, N. Akbar
Menthol mint oil is distilled by water steam distillation from leaves of Mentha arvensis and is the most importance source of L-menthol. It contains L-menthol 68.3%, menthone 8.2%, isomenthone 4.4%, menthyl acetate 4.3%, mixture of isomers of menthol 4.5%, cis-3- hexanal 0.2-% and limonene 1.2%, However percentage of components depends on the genetic and ecological conditions. Major component L-Menthol is isolated by freezing at low temperature with the recovery of around 65% in form of menthol flakes and the remaining material is known as DMO or dementholised oil (30%). During the process 1% loss is generally found. All the components are being used in Flavours, Pharmaceuticals, Tobacco and other cosmetic Industries.
薄荷油是用水蒸气蒸馏法从薄荷叶中提取的薄荷油,是l -薄荷醇的重要来源。其中l -薄荷醇68.3%,薄荷酮8.2%,异薄荷酮4.4%,乙酸薄荷酯4.3%,薄荷醇混合异构体4.5%,顺式-3-己醛0.2%,柠檬烯1.2%,但各组分的含量取决于遗传和生态条件。主要成分l -薄荷醇通过低温冷冻分离,以薄荷醇片的形式回收约65%,剩余的物质称为DMO或脱醇油(30%)。在此过程中,一般发现损耗为1%。所有的成分都被用于香料、制药、烟草和其他化妆品行业。
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引用次数: 0
Energy Consumption with Fountain Codes and Clustering in Wireless Sensor Networks: Survey & Analysis 基于喷泉码和聚类的无线传感器网络能耗:调查与分析
Pub Date : 2017-01-21 DOI: 10.21013/JTE.V6.N1.P1
F. Belabed, R. Bouallègue
Energy is the most important and crucial issue in the wireless sensor networks since the entire sensor nodes are battery powered devices. As a result, energy efficiency and prolonging network lifetime are a challenge. In order to increase the lifetime of the battery-based sensing nodes, it is essential to minimize the consumed energy in the sensing process . With this objective, specific erasure codes called fountain codes are introduced. Fountain codes' performances can be further improved if they are merged with the strategy of grouping sensor nodes into clusters. In order to reach the energy minimization and network lifetime prolonging, the first step, is to completely know the sources of energy consumption. In this paper, sources of energy consumption with various techniques used have been studied and investigated. Furthermore, a survey has been provided for the energy consumption model by using these two techniques.
在无线传感器网络中,能量是最重要和最关键的问题,因为整个传感器节点都是电池供电的设备。因此,能源效率和延长网络寿命是一个挑战。为了提高基于电池的传感节点的寿命,最小化传感过程中所消耗的能量是至关重要的。为了达到这个目的,介绍了具体的擦除代码,称为喷泉代码。将喷泉码与传感器节点聚类策略相结合,可以进一步提高喷泉码的性能。为了达到能源的最小化和网络寿命的延长,第一步,是全面了解能源消耗的来源。在本文中,研究和调查了各种技术的能源消耗来源。此外,本文还对利用这两种技术建立的能源消耗模型进行了考察。
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引用次数: 0
Experimental Studies on Reinforced Concrete and Ferrocement Beams 钢筋混凝土和钢筋混凝土梁的试验研究
Pub Date : 2016-12-30 DOI: 10.21013/jte.v5.n3.p4
N. Jayaramappa
Arch structures have been utilized through the ages, beginning in the ancient civilizations of Greece, Egypt and Rome, to present day with their common use in bridges. Arches are well known for the ability to carry loads spanning large areas. Also now a day’s Ferrocement is being used extensively for various applications where use of normal concrete is hard to fulfil the present day requirements. In this paper experimental studies are carried out to understand the flexural behaviour of Reinforced concrete beams of grade M20 with HYSD reinforcement and Ferrocement hollow beams of cement to sand ratio of 1:3 and water cement ratio of 0.4. A total of four beams were  cast in which two are straight beams and another two are arched beams. In that two straight beam, one is reinforced concrete beam with minimum reinforcement and another one is Ferrocement hollow beam and in two arch beams, one is reinforced concrete beam and other is Ferrocement hollow beam. All beams are rectangular in cross-section of size 200 x 200 mm and the span length is 2500 mm. The arch beam is provided with a rise at centre of 0.8 m. The Ferrocement beam is made of mortar with hollow cross section using hexagonal wire mesh with thickness of 40 mm and all the specimens are cured for 28 days. Flexural tests are carried out on conventional RC beam and Ferrocement hollow beams for simply supported condition. The test results are presented in terms of load deflection behaviour, ultimate load, cracking load and crack pattern with respect to reinforced concrete beam and Ferrocement hollow beam.
从希腊、埃及和罗马的古代文明开始,到今天在桥梁上的普遍使用,拱门结构已经被使用了很长时间。拱形结构以其承载大面积荷载的能力而闻名。此外,在普通混凝土难以满足当前要求的各种应用中,一日混凝土也被广泛使用。本文对HYSD配筋M20级钢筋混凝土梁和水泥砂比为1:3、水灰比为0.4的铁水泥空心梁的抗弯性能进行了试验研究。总共有四根梁,其中两根是直梁,另外两根是拱形梁。在两根直梁中,一根是配筋最少的钢筋混凝土梁,另一根是铁水泥空心梁;在两根拱梁中,一根是钢筋混凝土梁,另一根是铁水泥空心梁。所有梁均为矩形,截面尺寸为200 × 200 mm,跨度长度为2500 mm。拱梁在中心处有0.8米的上升。Ferrocement梁采用空心截面砂浆,采用厚度为40mm的六角钢丝网,所有试件均固化28天。对简支条件下的普通RC梁和铁水泥空心梁进行了抗弯试验。给出了钢筋混凝土梁和钢筋混凝土空心梁的荷载挠度、极限荷载、开裂荷载和裂缝形态的试验结果。
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引用次数: 2
Assessment of Beach sand using Gamma Ray Spectrometer in Thiruvanathapuram District, Kerala of South India 在印度南部喀拉拉邦Thiruvanathapuram地区用伽马射线谱仪评价海滩砂
Pub Date : 2016-12-27 DOI: 10.21013/JTE.V5.N3.P2
A. Abinesh, S. G
It is well recognized fact that some areas of the world have anomalously high levels of natural background radiation referred to as high background radiation areas (HBRAs).  Typical examples include Yangjiang in China, Rasmar in Iran and In India, part of coastal areas of Kerala and Tamil Nadu fall in this category.  It has been established earlier that the cause for this high background is the presence of monazite (thorium). This study focuses on the estimation of the environmental radioactivity levels in the beach sands of Thiruvanathapuram district, Kerala.  Using high resolution gamma ray spectroscopy activity concentrations of 40 K, 238 U & 232 Th were estimated. Activity concentrations ranged from 17-154 Bq/kg for 40 K, from 4 to 100 Bq/kg for 238 U and from 6 to 296 Bq/kg for 232 Th.The mean activity concentration values obtained for the radionuclide are below than the world average values reported by the UNSCEAR. Subsequently assessed radiological effects show that the mean radium equivalent activity is 65 Bq/kg. The range of the calculated air exposure rate was between 14.2 to 228.1 nGy/h in both 0 m from the Waves and 10 m from the Waves. The values of external and internal radiation hazard indices are found to be less than unity. Measured natural radioactivity, hazard indices and effective dose received by the population were found to within the recommended limits. This work provides a good baseline data of natural radioactive elements for the sand of the area and  its radiological significance.
众所周知的事实是,世界上一些地区的自然本底辐射水平异常高,称为高本底辐射区。典型的例子包括中国的阳江、伊朗的拉斯马尔,以及印度喀拉拉邦和泰米尔纳德邦的部分沿海地区属于这一类。早先已经确定,这种高背景的原因是独居石(钍)的存在。本研究的重点是对喀拉拉邦蒂鲁凡那塔普拉姆地区海滩砂的环境放射性水平进行估计。利用高分辨率伽马能谱法估计了40 K、238 U和232 Th的活度浓度。40 K的活度浓度为17 ~ 154 Bq/kg, 238 U的活度浓度为4 ~ 100 Bq/kg, 232 Th的活度浓度为6 ~ 296 Bq/kg。获得的放射性核素的平均活度浓度值低于辐射科委会报告的世界平均值。随后评估的放射效应表明,平均镭当量活度为65 Bq/kg。在距离波0米和10米的范围内,计算出的空气暴露率范围为14.2至228.1 nGy/h。外辐射危害指数与内辐射危害指数的数值不一致。测得的天然放射性、危害指数和居民接受的有效剂量均在建议限值之内。该工作为该地区沙土提供了良好的天然放射性元素基线资料及其放射学意义。
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引用次数: 3
A Study on Modern Cryptographic Primitives and Signature Schemes 现代密码原语与签名方案研究
Pub Date : 2016-12-27 DOI: 10.21013/JTE.V5.N3.P3
J. Das, S. Kakoty, Majidul Ahmed
The access to digital data by the users has increased in recent times with the advent of data communication technologies and its popularization. The data which is in digital form has to pass through insecure channels, for example when a user accesses the Internet, the privacy of data becomes a major issue. The area of Information Security has to play a crucial role when it comes to protecting the privacy of digital data. Cryptography is one such part of Information Security field where a sender’s message gets encrypted and the message gets decrypted at the receiver’s end. From time to time, various cryptographic schemes have been developed among which the Private Key Cryptography and Public Key Cryptography techniques are prominent.  Moreover many special Signature Schemes which are part of cryptographic protocols have been providing security in dealing with digital transactions. This paper focuses on the use of modern cryptographic schemes and their importance in digital data communication system.
近年来,随着数据通信技术的出现和普及,用户对数字数据的获取越来越多。数字形式的数据必须通过不安全的渠道,例如当用户访问互联网时,数据的隐私成为一个主要问题。在保护数字数据的隐私方面,信息安全领域必须发挥至关重要的作用。密码学是信息安全领域的一个部分,发送方的消息被加密,消息在接收方端被解密。随着时间的推移,出现了各种各样的加密方案,其中以私钥加密技术和公钥加密技术最为突出。此外,作为加密协议的一部分,许多特殊的签名方案已经为处理数字交易提供了安全性。本文重点介绍了现代密码方案的应用及其在数字数据通信系统中的重要性。
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引用次数: 0
Effect of Radio Frequency from Cellular System on Human Body & Its Potential Remedy Li-Fi for Next Generation Wireless Network 蜂窝系统射频对人体的影响及其潜在补救措施Li-Fi下一代无线网络
Pub Date : 2016-12-27 DOI: 10.21013/JTE.V5.N3.P1
Pragati Sharma, A. Gautam
There is a huge body of evidence in the literature that exposure to radio frequency (RF) has been linked to a variety of adverse health outcomes that may have significant health problems for user of mobile phone. Credible scientific evidences are there that RF radiation from cellular system is responsible to create effect that may be either short term (sleep disruption, lack of concentration, behavioral changes etc) or  long term (DNA damage, altered immune function, miscarriage risks, etc.). Cellular region of frequency spectrum covers a vital range of frequency worldwide. It uses Base Transceiver Stations (BTS) and Mobile Station (MS) for its operation therefore the emission of energy from BTS and MS is quite dangerous and needs everyone attention. In second generation systems, BTS works on frequency reuse concept and after few kilometers, we found another BTS to serve the mobile phone. BTS power gets reduced as the distance from BTS to MS increases. At such condition, mobile starts to emit more power to maintain the link and sometimes switches to another nearby  BTS area. A new emerging technology, Light- Fidelity (Li-Fi) is in consideration for future use of communication because it is capable to work safe against health hazards. It can be understood as a carrier to transmit data wirelessly in spite of using radio waves. In this paper, we tried to check the effects of radio frequency at various conditions. These conditions are studied carefully and a comparative analysis is done (based on available literature) to aware mankind regarding harmful effects of radiation from cellular system on human body and also focus on its proposed remedy to overcome the hazardous effects of electromagnetic radiation.
文献中有大量证据表明,接触射频与各种不利的健康结果有关,这些结果可能对移动电话用户造成严重的健康问题。可靠的科学证据表明,来自细胞系统的射频辐射会造成短期(睡眠中断、注意力不集中、行为改变等)或长期(DNA损伤、免疫功能改变、流产风险等)的影响。蜂窝频谱覆盖了世界范围内的一个重要频率范围。它使用基站收发站(BTS)和移动站(MS)进行操作,因此BTS和MS的能量发射是相当危险的,需要大家注意。在第二代系统中,BTS致力于频率重用概念,在几公里后,我们找到了另一个BTS来服务手机。随着BTS到MS的距离增加,BTS的功率会降低。在这种情况下,手机开始发射更多的能量来维持连接,有时会切换到附近的另一个BTS区域。一种新兴的光保真(Li-Fi)技术正在考虑用于未来的通信,因为它能够安全工作,防止健康危害。它可以理解为不使用无线电波而无线传输数据的载体。在本文中,我们试图检查在不同条件下射频的影响。对这些情况进行了仔细的研究,并进行了比较分析(基于现有文献),以使人类认识到细胞系统辐射对人体的有害影响,并重点讨论了克服电磁辐射有害影响的建议补救措施。
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引用次数: 0
Developing an Appropriate Performance Measurement Framework for Total Quality Management (TQM) in Construction and Other Industries 为建造业及其他行业的全面品质管理(TQM)制订适当的绩效评估架构
Pub Date : 2016-12-12 DOI: 10.21013/JTE.V5.N2.P2
Behnam Neyestani, Joseph Berlin P. Juanzon
Total quality management (TQM) is a set of opinions and ideas that widely called “management philosophy”. This management technique is able to assist the construction firms in improving continuously the organization's performance, in order to satisfy customers and  survive in the market. The success of TQM implementation is tightly dependent on identifying and selecting the appropriate critical success factors (CSFs), quality tools, and performance measures (KPIs) within TQM framework.  Doubtlessly, a set of suitable performance measures (indicators) has a significant role to verify and ensure that TQM implementation can successfully achieve its aims in the organization. Thus, the main purpose of this paper was to develop a suitable framework to assess the effects of TQM  implementation on organization's performance in construction industry. For this aim, the study was conducted a comprehensive literature review to specify the existing key performance indicators (KPIs) from 26 TQM frameworks that formulated by scholars. In data analysis, the only 20 KPIs were found of 26 TQM studies. The extracted KPIs (20) classified based on four dimensions of balanced scorecard (BSC), and then arranged from highest to lowest frequency for each perspective of BSC. Finally, a total of ten KPIs were determined and presented within BSC system as an appropriate performance measures framework, which enables evaluating critical areas that very vital to the success of TQM implementation in construction firms at project and enterprise levels.
全面质量管理(TQM)是一套被广泛称为“管理哲学”的观点和思想。这种管理技术能够帮助建筑企业持续改进组织绩效,以满足客户并在市场中生存。TQM实施的成功紧密依赖于在TQM框架内识别和选择适当的关键成功因素(csf)、质量工具和性能度量(kpi)。毫无疑问,一套合适的绩效测量(指标)对于验证和确保TQM的实施能够在组织中成功实现其目标具有重要作用。因此,本文的主要目的是开发一个合适的框架来评估在建筑行业实施TQM对组织绩效的影响。为此,本研究进行了全面的文献综述,从学者制定的26个TQM框架中明确了现有的关键绩效指标(kpi)。在数据分析中,26项TQM研究中仅发现了20个kpi。提取的kpi(20)基于平衡计分卡(BSC)的四个维度进行分类,然后对平衡计分卡各个角度从高到低的频率进行排序。最后,在平衡计分卡系统中确定并提出了十个kpi,作为适当的绩效衡量框架,可以评估对建筑公司在项目和企业层面成功实施TQM至关重要的关键领域。
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引用次数: 35
Word Sense Disambiguation Using Semantic Web for Tamil to English Statistical Machine Translation 基于语义网的泰米尔语到英语统计机器翻译词义消歧
Pub Date : 2016-11-26 DOI: 10.21013/JTE.V5.N2.P1
Santosh Kumar T.S.
Machine Translation has been an area of linguistic research for almost more than two decades now. But it still remains a very challenging task for devising an automated system which will deliver accurate translations of the natural languages. However, great strides have been made in this field with more success owing to the development of technologies of the web and off late there is a renewed interest in this area of research.  Technological advancements in the preceding two decades have influenced Machine Translation in a considerable way. Several MT approaches including Statistical Machine Translation greatly benefitted from these advancements, basically making use of the availability of extensive corpora. Web technology web3.0 uses the semantic web technology which represents any object or resource in the web both syntactically and semantically.  This type of representation is very much useful for the computing systems to search any content on the internet similar to lexical search and improve the internet based translations making it more effective and efficient. In this paper we propose a technique to improve existing statistical Machine Translation methods by making use of semantic web technology. Our focus will be on Tamil and Tamil to English MT. The proposed method could successfully integrate a semantic web technique in the process of WSD which forms part of the MT system. The integration is accomplished by using the capabilities of RDFS and OWL into the WSD component of the MT model. The contribution of this work lies in showing that integrating a Semantic web technique in the WSD system significantly improves the performance of a statistical MT system for a translation from Tamil to English. In this paper we assume the availability of large corpora in Tamil language and specific domain based ontologies with Tamil semantic web technology using web3.0. We are positive on the expansion and development of Tamil semantic web and subsequently infer that Tamil to English MT will greatly improve the disambiguation concept apart from other related benefits. This method could enable the enhancement of translation quality by improving on word sense disambiguation process while text is translated from Tamil to English language. This method can also be extended to other languages such as Hindi and Indian Languages.
机器翻译作为语言学研究的一个领域已经有近二十年的历史了。但是,设计一个能够准确翻译自然语言的自动化系统仍然是一项非常具有挑战性的任务。然而,由于网络技术的发展,这一领域取得了巨大的进步,取得了更大的成功,最近对这一领域的研究又产生了新的兴趣。在过去的二十年里,技术的进步在很大程度上影响了机器翻译。包括统计机器翻译在内的几种机器翻译方法从这些进步中受益匪浅,基本上利用了大量语料库的可用性。Web技术web3.0使用语义Web技术,语义Web技术在语法和语义上表示网络中的任何对象或资源。这种类型的表示对于计算系统在互联网上搜索类似于词汇搜索的任何内容非常有用,并且可以改进基于互联网的翻译,使其更加有效和高效。本文提出了一种利用语义网技术改进现有统计机器翻译方法的方法。我们的重点将放在泰米尔语和泰米尔语到英语的机器翻译上。所提出的方法可以成功地将语义网技术集成到构成机器翻译系统一部分的WSD过程中。集成是通过在MT模型的WSD组件中使用RDFS和OWL的功能来完成的。这项工作的贡献在于展示了在WSD系统中集成语义网技术可以显著提高统计MT系统从泰米尔语到英语翻译的性能。在本文中,我们假设使用web3.0的泰米尔语语义web技术可以获得大型泰米尔语语料库和基于特定领域的本体。我们对泰米尔语语义网的扩展和发展持积极态度,随后推断泰米尔语到英语的机器翻译除了其他相关的好处外,还将极大地改善消歧概念。该方法通过改进泰米尔语翻译过程中的词义消歧过程,提高了翻译质量。这种方法也可以扩展到其他语言,如印地语和印度语。
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引用次数: 1
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IRA-International Journal of Technology & Engineering
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