首页 > 最新文献

International journal of advancements in computing technology最新文献

英文 中文
Multiple Fruit and Vegetable Sorting System Using Machine Vision 基于机器视觉的多种果蔬分拣系统
Pub Date : 2015-08-12 DOI: 10.4172/0976-4860.1000142
Mathew George
Multiple Fruit and Vegetable Fruit Sorting System using Machine Vision is presented in this paper. The grading systems were developed for easing the labor intensive work and create consistency in the quality of the product. The current grading systems involved in the fruit sorting cater to only one type of fruit. So by adding more features like fruit and vegetable identification under variable background condition can enhance the quality of the agricultural produce. This paper proposes a technique to achieving multiple fruit and vegetable sorting using fuzzy logic and K-Means clustering method by using a low cost image capturing device.
介绍了一种基于机器视觉的多种果蔬水果分选系统。分级系统的开发是为了减轻劳动密集型工作,并创造产品质量的一致性。目前的水果分类分级系统只适用于一种水果。因此,增加可变背景条件下果蔬识别等特征可以提高农产品的质量。本文提出了一种基于模糊逻辑和K-Means聚类方法,利用低成本的图像采集设备实现多种果蔬分选的技术。
{"title":"Multiple Fruit and Vegetable Sorting System Using Machine Vision","authors":"Mathew George","doi":"10.4172/0976-4860.1000142","DOIUrl":"https://doi.org/10.4172/0976-4860.1000142","url":null,"abstract":"Multiple Fruit and Vegetable Fruit Sorting System using Machine Vision is presented in this paper. The grading systems were developed for easing the labor intensive work and create consistency in the quality of the product. The current grading systems involved in the fruit sorting cater to only one type of fruit. So by adding more features like fruit and vegetable identification under variable background condition can enhance the quality of the agricultural produce. This paper proposes a technique to achieving multiple fruit and vegetable sorting using fuzzy logic and K-Means clustering method by using a low cost image capturing device.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"22 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81713280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
A Study on High Rate Shrew DDOS Attack 高速率鼩鼱DDOS攻击研究
Pub Date : 2015-07-18 DOI: 10.4172/0976-4860.1000143
Kanika Minhas
Denial of Service attacks is frequently presenting an increasing threat to the global inter-networking infrastructure in networking area and scenario. The algorithm for Transfer Control Protocol (TCP) congestion control is highly efficient for the various networking areas and operations as well its internal assumption of end-system cooperation results is well prone to attack by high-rate flows. A Shrew attack uses the concept of a low-rate burst which is carefully designed to use the TCP’s retransmission timeout mechanism in an unfair way and can affect the bandwidth of a TCP flow in a smooth manner without coming into appearance as an intruder. A Shrew attack has further classifications such as a low rate shrew attack or a high rate shrew attack. A high rated shrew attack uses the concept of timely sending high rate packet stream in low frequency. Such attack can affect the performance of a network to a large extent.
拒绝服务攻击频繁出现,在网络领域和场景中对全球网络间基础设施构成越来越大的威胁。TCP (Transfer Control Protocol)拥塞控制算法对各种网络区域和业务都具有很高的效率,但其内部对端系统合作结果的假设容易受到高速率流的攻击。鼩鼱攻击使用低速率突发的概念,该概念被精心设计为以不公平的方式使用TCP的重传超时机制,并且可以以平滑的方式影响TCP流的带宽,而不会以入侵者的形式出现。鼩鼱攻击有进一步的分类,如低率鼩鼱攻击或高率鼩鼱攻击。高速率鼩鼱攻击利用了在低频率下及时发送高速率数据包流的概念。这种攻击会在很大程度上影响网络的性能。
{"title":"A Study on High Rate Shrew DDOS Attack","authors":"Kanika Minhas","doi":"10.4172/0976-4860.1000143","DOIUrl":"https://doi.org/10.4172/0976-4860.1000143","url":null,"abstract":"Denial of Service attacks is frequently presenting an increasing threat to the global inter-networking infrastructure in networking area and scenario. The algorithm for Transfer Control Protocol (TCP) congestion control is highly efficient for the various networking areas and operations as well its internal assumption of end-system cooperation results is well prone to attack by high-rate flows. A Shrew attack uses the concept of a low-rate burst which is carefully designed to use the TCP’s retransmission timeout mechanism in an unfair way and can affect the bandwidth of a TCP flow in a smooth manner without coming into appearance as an intruder. A Shrew attack has further classifications such as a low rate shrew attack or a high rate shrew attack. A high rated shrew attack uses the concept of timely sending high rate packet stream in low frequency. Such attack can affect the performance of a network to a large extent.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"44 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88998858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of Waste Borosilicate Glasses for Formulating a Functional Transparent Glaze 利用废硼硅酸盐玻璃配制功能性透明釉料
Pub Date : 2015-06-27 DOI: 10.4172/0976-4860.1000141
O. Toluwalope, I. Oluwatuase
Glaze making in some developing countries has not been encouraging, therefore making the act of glazing going into extinct. This setback is due to unavailability of required fluxes for formulating a workable low temperature transparent glaze. Meanwhile glass of different properties like Grade B borosilicate and Grade A borosilicate glasses which contain the required silica/flux ratio for formulating a low temperature transparent glazes are found to be abundantly available as waste, which are discarded and therefore polluting the immediate environment. This paper therefore discuss the availability and utilization of this particular type of waste glasses for formulating transparent glazes by processing and sieving the waste glasses into its finest particle called cullet. This processed cullet was used as a source of flux/silica with kaolin supplying the alumina for stabilizing the glaze. Cullet was composed in several proportions with kaolin in ratio 1-10 and vice versa. The composed glazes were fired at different temperature and atmosphere to detect the best condition at which cullet can be utilized as a source of silica/flux in formulating a transparent glaze.
在一些发展中国家,釉料制作并不令人鼓舞,因此使釉料行为走向灭绝。这种挫折是由于无法获得配制可行的低温透明釉所需的助熔剂。同时,不同性能的玻璃,如B级硼硅酸盐和A级硼硅酸盐玻璃,含有配制低温透明釉所需的硅/助熔剂比,被发现大量作为废物,被丢弃,因此污染了直接的环境。因此,本文讨论了这种特殊类型的废玻璃的可用性和利用,通过加工和筛选废玻璃成其最细的颗粒称为碎粒来配制透明釉。经过处理的碎料被用作助熔剂/二氧化硅的来源,高岭土为稳定釉料提供氧化铝。鱼片与高岭土按1-10的比例组成,反之亦然。在不同的温度和气氛下烧制所合成的釉料,以检测在配制透明釉料时,利用碎料作为硅/助熔剂的最佳条件。
{"title":"The Use of Waste Borosilicate Glasses for Formulating a Functional Transparent Glaze","authors":"O. Toluwalope, I. Oluwatuase","doi":"10.4172/0976-4860.1000141","DOIUrl":"https://doi.org/10.4172/0976-4860.1000141","url":null,"abstract":"Glaze making in some developing countries has not been encouraging, therefore making the act of glazing going into extinct. This setback is due to unavailability of required fluxes for formulating a workable low temperature transparent glaze. Meanwhile glass of different properties like Grade B borosilicate and Grade A borosilicate glasses which contain the required silica/flux ratio for formulating a low temperature transparent glazes are found to be abundantly available as waste, which are discarded and therefore polluting the immediate environment. This paper therefore discuss the availability and utilization of this particular type of waste glasses for formulating transparent glazes by processing and sieving the waste glasses into its finest particle called cullet. This processed cullet was used as a source of flux/silica with kaolin supplying the alumina for stabilizing the glaze. Cullet was composed in several proportions with kaolin in ratio 1-10 and vice versa. The composed glazes were fired at different temperature and atmosphere to detect the best condition at which cullet can be utilized as a source of silica/flux in formulating a transparent glaze.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"2 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82334750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Numerical Study on condensation Process of Steam Flow in Nozzles 喷嘴内蒸汽流动凝结过程的数值研究
Pub Date : 2015-05-18 DOI: 10.4172/0976-4860.1000140
Farag Ms, El-Terhy Aa, El-Askary Wa, H. As
Steam ejector is an important component in engineering applications, which require high vacuum, such as steam plant condenser. Prediction of steam ejector performance is very significant tool for the design of the ejector. The steam ejector consists of three parts; nozzle, mixing chamber and diffuser. The nozzle has the task of creating the vacuum required. In the current paper numerical treatment of wet steam flow through the nozzle of an ejector is presented. The first task of this work is to test and evaluate several turbulence models on a generic case, constructed for turbulent steam flow in a convergent-divergent nozzle. The effect of pressure ratios, that is responsible for controlling the location or absence of the generated shock wave as well as the impact of the shock wave on the condensation of steam inside the nozzle are numerically concerned. These features are clearly observed from the pressure distribution, Mach number, liquid mass fraction, droplet nucleation rate, droplet critical radius and static temperature. It is concluded from the current work that the standard k-ω model is the most appropriate turbulence model for simulating this complex flow compared to the other considered models for nozzle steam flow sumulation.
蒸汽喷射器是蒸汽装置冷凝器等高真空工程应用中的重要部件。蒸汽喷射器性能预测是喷射器设计的重要工具。蒸汽喷射器由三部分组成;喷嘴、混合室和扩散器。喷嘴的任务是产生所需的真空。本文对通过喷射器喷嘴的湿蒸汽流动进行了数值处理。本工作的第一项任务是在一般情况下测试和评估几种湍流模型,这些模型是为收敛-发散喷嘴中的湍流蒸汽流动而构建的。压力比的影响,负责控制所产生的激波的位置或是否存在,以及激波对喷嘴内蒸汽冷凝的影响,在数值上得到了关注。这些特征从压力分布、马赫数、液体质量分数、液滴成核速率、液滴临界半径和静态温度等方面都可以清楚地观察到。从目前的工作中得出结论,与其他考虑的喷嘴蒸汽流动模型相比,标准k-ω模型是最适合模拟这种复杂流动的湍流模型。
{"title":"Numerical Study on condensation Process of Steam Flow in Nozzles","authors":"Farag Ms, El-Terhy Aa, El-Askary Wa, H. As","doi":"10.4172/0976-4860.1000140","DOIUrl":"https://doi.org/10.4172/0976-4860.1000140","url":null,"abstract":"Steam ejector is an important component in engineering applications, which require high vacuum, such as steam plant condenser. Prediction of steam ejector performance is very significant tool for the design of the ejector. The steam ejector consists of three parts; nozzle, mixing chamber and diffuser. The nozzle has the task of creating the vacuum required. In the current paper numerical treatment of wet steam flow through the nozzle of an ejector is presented. The first task of this work is to test and evaluate several turbulence models on a generic case, constructed for turbulent steam flow in a convergent-divergent nozzle. The effect of pressure ratios, that is responsible for controlling the location or absence of the generated shock wave as well as the impact of the shock wave on the condensation of steam inside the nozzle are numerically concerned. These features are clearly observed from the pressure distribution, Mach number, liquid mass fraction, droplet nucleation rate, droplet critical radius and static temperature. It is concluded from the current work that the standard k-ω model is the most appropriate turbulence model for simulating this complex flow compared to the other considered models for nozzle steam flow sumulation.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"42 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2015-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80668403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Experimental Investigation of Performance of Acetylene Fuel Based Diesel Engine 乙炔燃料型柴油机性能试验研究
Pub Date : 2015-01-01 DOI: 10.4172/0976-4860.1000151
Shaik Khader Basha, P. Rao, K. Rajagopal
People have been working seriously in the search for best alternative fuels to safeguard the environment ever since the transportation and industrial fields started growing widely. Among such alternatives acetylene has proved to be a better fuel for internal combustion engines due to its low cost, simplicity in manufacturing and excellent combustion characteristics. Moreover it has less carbon content compared to other fuels, which plays a central role in environmental degradation. However the fuel must be safe and environmentally friendly and also readily usable in existing engines without any significant design modifications. Acetylene is produced in parallel to the engine operation taking proper care to avoid back firing. We propose in the present study that acetylene be the safe and appropriate fuel for a compression ignition engine. Diesel engine is selected with a subsidiary mixing box for a homogeneous mixture of air and acetylene. The experiments are conducted with fixed acetylene flow rates from 0.1Lit/min to 5Lit/min with an increase of 0.5Lit/min in every step. The engine is tested at various loads, keeping track of combustion performance to find out the optimum fuel flow rates and also to have reduced emissions. The results show that the performance of the Acetylene enriched engine is nearer to the pure diesel engine with reduced emissions. It is concluded that acetylene could be the better alternative fuel without compromising brake thermal efficiency and safe operation with a moderate increment of smoke and NOx.
自从交通运输和工业领域开始广泛发展以来,人们一直在认真地寻找最佳的替代燃料来保护环境。在这些替代品中,由于成本低、制造简单和优异的燃烧特性,乙炔已被证明是内燃机较好的燃料。此外,与其他燃料相比,它的碳含量更低,而碳含量在环境退化中起着核心作用。然而,这种燃料必须是安全的、环保的,并且在现有的发动机中也可以随时使用,而不需要进行任何重大的设计修改。乙炔是在发动机运行的同时产生的,要注意避免反烧。本研究提出乙炔是一种安全、合适的压缩点火发动机燃料。柴油机选用辅助混合箱,使空气和乙炔均匀混合。实验采用固定的乙炔流量,从0.1Lit/min到5Lit/min,每步增加0.5Lit/min。发动机在各种负载下进行测试,跟踪燃烧性能以找出最佳燃油流量并减少排放。结果表明,富乙炔发动机的性能更接近纯柴油机,排放更低。结果表明,乙炔是较好的替代燃料,在不影响制动热效率和安全运行的情况下,烟气和NOx的增加适中。
{"title":"Experimental Investigation of Performance of Acetylene Fuel Based Diesel Engine","authors":"Shaik Khader Basha, P. Rao, K. Rajagopal","doi":"10.4172/0976-4860.1000151","DOIUrl":"https://doi.org/10.4172/0976-4860.1000151","url":null,"abstract":"People have been working seriously in the search for best alternative fuels to safeguard the environment ever since the transportation and industrial fields started growing widely. Among such alternatives acetylene has proved to be a better fuel for internal combustion engines due to its low cost, simplicity in manufacturing and excellent combustion characteristics. Moreover it has less carbon content compared to other fuels, which plays a central role in environmental degradation. However the fuel must be safe and environmentally friendly and also readily usable in existing engines without any significant design modifications. Acetylene is produced in parallel to the engine operation taking proper care to avoid back firing. We propose in the present study that acetylene be the safe and appropriate fuel for a compression ignition engine. Diesel engine is selected with a subsidiary mixing box for a homogeneous mixture of air and acetylene. The experiments are conducted with fixed acetylene flow rates from 0.1Lit/min to 5Lit/min with an increase of 0.5Lit/min in every step. The engine is tested at various loads, keeping track of combustion performance to find out the optimum fuel flow rates and also to have reduced emissions. The results show that the performance of the Acetylene enriched engine is nearer to the pure diesel engine with reduced emissions. It is concluded that acetylene could be the better alternative fuel without compromising brake thermal efficiency and safe operation with a moderate increment of smoke and NOx.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"2015 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86944784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Validity Threats in Modern Science: Why Social Science Research Methods Should be Compulsory for STEM Disciplines 现代科学的有效性威胁:为什么社会科学研究方法应该成为STEM学科的必修课程
Pub Date : 2015-01-01 DOI: 10.4172/0976-4860.1000152
Onwubiko Agozino
The principles of research methodology were borrowed by social scientists from the natural sciences. However, research methods courses are more likely to be found in the social sciences today while the natural sciences take the principles of methodology for granted except in courses on laboratory methods in physics and chemistry or numeric methods in mathematics. This article suggests that it is time for the social sciences to serve as a model for the natural sciences by emphasizing the importance of teaching quantitative and qualitative research methods courses and adhering to the principles in research. The important principle of validity will be used to illustrate what modern physics, for example, could relearn from the social sciences.
研究方法论的原则是社会科学家从自然科学中借鉴来的。然而,研究方法课程更可能出现在今天的社会科学中,而自然科学将方法论原则视为理所当然,除了物理和化学的实验方法课程或数学的数值方法课程。强调定量和定性研究方法课程的教学,坚持研究原则,是社会科学向自然科学学习的典范。重要的有效性原则将被用来说明现代物理学,例如,可以从社会科学中学到什么。
{"title":"Validity Threats in Modern Science: Why Social Science Research Methods Should be Compulsory for STEM Disciplines","authors":"Onwubiko Agozino","doi":"10.4172/0976-4860.1000152","DOIUrl":"https://doi.org/10.4172/0976-4860.1000152","url":null,"abstract":"The principles of research methodology were borrowed by social scientists from the natural sciences. However, research methods courses are more likely to be found in the social sciences today while the natural sciences take the principles of methodology for granted except in courses on laboratory methods in physics and chemistry or numeric methods in mathematics. This article suggests that it is time for the social sciences to serve as a model for the natural sciences by emphasizing the importance of teaching quantitative and qualitative research methods courses and adhering to the principles in research. The important principle of validity will be used to illustrate what modern physics, for example, could relearn from the social sciences.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88194033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new approach to data encryption based on the synchronous stream cipher with bit-level diffusion 一种基于位级扩散同步流密码的数据加密新方法
Pub Date : 2013-07-31 DOI: 10.4156/IJACT.VOL5.ISSUE11.12
Z. Muda, Abdeladeem Ab. Ahfaidha, N. Udzir, R. Mahmod
Most proposed stream ciphers are cracked through vulnerability of input and output. This paper is focused on the encryption function and the security tradeoff between pseudorandom number generators and the encryption function. Despite the focus on the security of the key generation, there is still considerable potential for attacks on the secret key as long as the encryption function leaks valuable information about the key to the attacker. Hence, it is important to study the possibility of constructing a new encryption model based on a stream cipher, while considering security and throughput tradeoffs. In this paper a new approach to data encryption based on its integration with a synchronous stream cipher is presented. This new approach is named the “Permuted Synchronous Stream Cipher” (PSSC). The sophisticated design of the PSSC for providing diffusion to stream ciphers allows it to be easily incorporated into most of the existing proposed stream ciphers to provide better security. The PSSC key stream is constructed from two parts, namely the key- bits and a corresponding diffusion maps. The method involves inserting random bits into the ciphertext followed by bit rotation and XORing bitwise. Therefore, any statistical pattern or information about the secret key that may be reflected in or leaked into the cipher’s output can be masked by performing simple bit diffusion on the ciphertext based on a pseudorandom sequence of diffusion maps. We believe that the proposed method can achieve a throughput rate that is fast enough for real-time data protection with better security.
大多数提出的流密码都是通过输入和输出的漏洞来破解的。本文主要研究了加密函数以及伪随机数生成器与加密函数之间的安全权衡。尽管关注密钥生成的安全性,但只要加密功能将密钥的有价值信息泄露给攻击者,那么对密钥的攻击仍然存在相当大的可能性。因此,在考虑安全性和吞吐量权衡的同时,研究基于流密码构建新加密模型的可能性是很重要的。本文提出了一种基于同步流密码的数据加密新方法。这种新方法被命名为“排列同步流密码”(PSSC)。为流密码提供扩散的PSSC的复杂设计允许它很容易地合并到大多数现有的建议流密码中,以提供更好的安全性。PSSC密钥流由两个部分组成,即密钥位和相应的扩散映射。该方法包括在密文中插入随机位,然后进行位旋转和按位XORing。因此,可以通过基于扩散映射的伪随机序列对密文执行简单的位扩散来掩盖可能反映在密码输出中或泄露到密码输出中的有关密钥的任何统计模式或信息。我们认为,该方法可以实现足够快的吞吐量,以实现实时数据保护,并且具有更好的安全性。
{"title":"A new approach to data encryption based on the synchronous stream cipher with bit-level diffusion","authors":"Z. Muda, Abdeladeem Ab. Ahfaidha, N. Udzir, R. Mahmod","doi":"10.4156/IJACT.VOL5.ISSUE11.12","DOIUrl":"https://doi.org/10.4156/IJACT.VOL5.ISSUE11.12","url":null,"abstract":"Most proposed stream ciphers are cracked through vulnerability of input and output. This paper is focused on the encryption function and the security tradeoff between pseudorandom number generators and the encryption function. Despite the focus on the security of the key generation, there is still considerable potential for attacks on the secret key as long as the encryption function leaks valuable information about the key to the attacker. Hence, it is important to study the possibility of constructing a new encryption model based on a stream cipher, while \u0000considering security and throughput tradeoffs. In this paper a new approach to data encryption based on its integration with a synchronous stream cipher is presented. This new approach is named the “Permuted Synchronous Stream Cipher” (PSSC). The sophisticated design of the PSSC for providing diffusion to stream ciphers allows it to be easily incorporated into most of the existing proposed stream ciphers to provide better security. The PSSC key stream is constructed from two parts, namely the key- \u0000bits and a corresponding diffusion maps. The method involves inserting random bits into the ciphertext \u0000followed by bit rotation and XORing bitwise. Therefore, any statistical pattern or information about the secret key that may be reflected in or leaked into the cipher’s output can be masked by performing simple bit diffusion on the ciphertext based on a pseudorandom sequence of diffusion maps. We believe that the proposed method can achieve a throughput rate that is fast enough for real-time data \u0000protection with better security.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"5 1","pages":"109-117"},"PeriodicalIF":0.0,"publicationDate":"2013-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Experimental Study on Inelastic Lateral-Torsional Buckling Strength of Monosymmetric Stepped I-Beam Subjected to a Concentrated Load 集中荷载作用下单对称阶梯工字钢非弹性侧扭屈曲强度试验研究
Pub Date : 2013-07-31 DOI: 10.4156/IJACT.VOL5.ISSUE11.22
Yi-seul Park, J. S. Park
Abstract This paper extends the study made on determining the inelastic lateral torsional buckling strength of monosymmetric stepped I-beam in consideration of its degree of monosymmetry by making a destructive test while subjecting the beam to a concentrated load. Prior to the test, numerical values of the expected results are estimated by finite element analysis using the program ABAQUS. The numerical results are estimated by creating a model which experiences the same conditions as that of the test specimen. Then, a comparison is made with the experimental results, the results from the proposed equation and the results from the finite element analysis. In succession, the safety and economic feasibility of the proposed equation is evaluated. Finally, the comparisons made showed that the proposed equation yielded results that are acceptable and has values that are similar to the values yielded by the test. More tests are needed to determine if the proposed equation is also suitable for other loading conditions.
摘要本文对考虑单对称阶梯工字梁的单对称程度的非弹性侧向扭转屈曲强度的研究进行了扩展,在集中荷载作用下进行了破坏试验。在试验前,利用ABAQUS软件进行有限元分析,对试验结果进行数值估计。数值结果是通过建立一个模型来估计的,该模型经历了与试样相同的条件。然后,与实验结果、所提方程的计算结果和有限元分析结果进行了比较。接着,对所提方程的安全性和经济可行性进行了评价。最后,进行的比较表明,所提出的方程产生的结果是可以接受的,并且具有与测试产生的值相似的值。需要更多的试验来确定所提出的方程是否也适用于其他加载条件。
{"title":"An Experimental Study on Inelastic Lateral-Torsional Buckling Strength of Monosymmetric Stepped I-Beam Subjected to a Concentrated Load","authors":"Yi-seul Park, J. S. Park","doi":"10.4156/IJACT.VOL5.ISSUE11.22","DOIUrl":"https://doi.org/10.4156/IJACT.VOL5.ISSUE11.22","url":null,"abstract":"Abstract This paper extends the study made on determining the inelastic lateral torsional buckling strength of monosymmetric stepped I-beam in consideration of its degree of monosymmetry by making a destructive test while subjecting the beam to a concentrated load. Prior to the test, numerical values of the expected results are estimated by finite element analysis using the program ABAQUS. The numerical results are estimated by creating a model which experiences the same conditions as that of the test specimen. Then, a comparison is made with the experimental results, the results from the proposed equation and the results from the finite element analysis. In succession, the safety and economic feasibility of the proposed equation is evaluated. Finally, the comparisons made showed that the proposed equation yielded results that are acceptable and has values that are similar to the values yielded by the test. More tests are needed to determine if the proposed equation is also suitable for other loading conditions.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"5 1","pages":"211-216"},"PeriodicalIF":0.0,"publicationDate":"2013-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
DSP-based New On-line Dead Time Compensation Strategy of a PMSM Drive through Digital Signal Processing and Harmonic Component Extraction for a Robot Arm Application 基于dsp数字信号处理和谐波分量提取的永磁同步电机在线死区补偿策略在机械臂中的应用
Pub Date : 2013-07-31 DOI: 10.4156/IJACT.VOL5.ISSUE11.23
Kyeong-Hwa Kim, Myung-Bok Kim
Abstract DSP-based on-line dead time compensation strategy of a permanent magnet synchronous motor (PMSM) drive through a signal processing and harmonic extraction for a robot arm application is proposed. The proposed scheme is based on monitoring the fifth-order harmonic component through the signal processing and harmonic component extraction. The proposed scheme does not require a periodic information of current for the harmonic calculation nor parameter information. Also, it gives a faster estimation performance than the conventional harmonic approach. The effectiveness of the proposed scheme is verified through the comparative simulations and experiments using DSP TMS320F28335.
提出了一种基于dsp的永磁同步电机在线死区补偿策略,该策略通过信号处理和谐波提取实现了机械臂用永磁同步电机的在线死区补偿。该方案通过对信号的处理和谐波分量的提取来监测五阶谐波分量。该方案不需要周期电流信息进行谐波计算,也不需要参数信息。与传统的谐波方法相比,该方法具有更快的估计性能。通过DSP TMS320F28335的对比仿真和实验,验证了该方案的有效性。
{"title":"DSP-based New On-line Dead Time Compensation Strategy of a PMSM Drive through Digital Signal Processing and Harmonic Component Extraction for a Robot Arm Application","authors":"Kyeong-Hwa Kim, Myung-Bok Kim","doi":"10.4156/IJACT.VOL5.ISSUE11.23","DOIUrl":"https://doi.org/10.4156/IJACT.VOL5.ISSUE11.23","url":null,"abstract":"Abstract DSP-based on-line dead time compensation strategy of a permanent magnet synchronous motor (PMSM) drive through a signal processing and harmonic extraction for a robot arm application is proposed. The proposed scheme is based on monitoring the fifth-order harmonic component through the signal processing and harmonic component extraction. The proposed scheme does not require a periodic information of current for the harmonic calculation nor parameter information. Also, it gives a faster estimation performance than the conventional harmonic approach. The effectiveness of the proposed scheme is verified through the comparative simulations and experiments using DSP TMS320F28335.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"28 15 1","pages":"217-226"},"PeriodicalIF":0.0,"publicationDate":"2013-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Automated Essay Scoring System By Using Support Vector Machine 使用支持向量机的自动作文评分系统
Pub Date : 2013-07-31 DOI: 10.4156/IJACT.VOL5.ISSUE11.37
Rocy Martinez, Heedong Hong, Daewon Lee
{"title":"Automated Essay Scoring System By Using Support Vector Machine","authors":"Rocy Martinez, Heedong Hong, Daewon Lee","doi":"10.4156/IJACT.VOL5.ISSUE11.37","DOIUrl":"https://doi.org/10.4156/IJACT.VOL5.ISSUE11.37","url":null,"abstract":"","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":"5 1","pages":"316-322"},"PeriodicalIF":0.0,"publicationDate":"2013-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
International journal of advancements in computing technology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1