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9th IEEE Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)

作者： Liu, Xing Kwantlen Polytech Univ Dept Comp Sci & Informat Technol Surrey BC Canada

ISBN: (纸本)9781538672662

This paper introduces a small java application named ChainTutor for learning basic Blockchain concepts. Although the term Blockchain is widely known and Blockchain technologies are finding applications in various areas such as banking, healthcare and Internet of Things, some concepts of Blockchain are not easy for beginners to understand. Fully text-based tutorials are often difficult to follow. General picture of Blockchain operations gets lost in lengthy textual descriptions. With the java application introduced in this paper, users can experiment with key Blockchain concepts through a graphical user interface. They can generate keys, hashes, transactions, blocks and wallets. They can see the low level details of a blockchain such as encryption keys and hashes. They can see how mining works and how blocks are added to a blockchain. Parameters of a blockchain can also be varied in order to observe their impact on performance or even to make a blockchain invalid. The java application is intended to be used in classroom environment by instructors when they teach introductory Blockchain courses.

关键词： Blockchain learning tool java application

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A java application for the failure rate prediction using feed forward neural networks 8

A Java application for the failure rate prediction using fee...

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8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)

作者： Ene, Alexandra Stirbu, Cosmin Univ Pitesti Pitesti Romania

ISBN: (纸本)9781509020478

In this paper we show the possibility to use feed forward neural networks for failure rate prediction, and this can be used for improving predictive maintenance. We use a series of real values that represent the failure rate of a radio-reception system, and describe a java application that we developed, that simulates a feed forward neural network which is trained to predict, based on the available series of failure rate values, the next failure rate value. We use a one hidden layer neural network that has a single output, the predicted value. The inputs of network are analog, continuous values between 0 and 1, and represent the previous known values of failure rate. Using the software, we used different numbers of input (2, 3, and 5) and the accuracy of prediction is compared for these different numbers.

关键词： feed forward neural network predictive maintenances java application

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Finite Element Analysis of Thin Rectangular Plate Subjected to Uniformly Distributed Transverse Load: a java application

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INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH IN AFRICA 2015年 15卷 107-122页

作者： Amadou, Adamou Olisaemeka, Osadebe Univ Nigeria Dept Civil Engn Nsukka Nigeria Shell Nigeria Explorat & Prod Co Lagos Nigeria

The present work developed a computer application for the finite element analysis of thin rectangular plates under uniformly distributed transverse load. The software, which was developed using java programming language, is very user-friendly and flexible in the choice of the boundary conditions and mesh size. The choice of java programming language was guided by its high memory management, which, in turn had a positive effect on the software runtime. The finite element analysis of a Kirchhoff isotropic plate under a uniformly distributed transverse load was carried out using the software. The results obtained agreed accurately with solutions available in literature. Error analysis conducted on the results confirmed that accuracy generally increases with an increase in the number of elements used in the discretization process. Specifically, for a 16 x 16 discretization, an accuracy ranging from 98.41 to 100 percent, and 95.83 to 100 percent was achieved for the five sets of boundary conditions handled, for deflections at the plate's center and bending moments respectively.

关键词： Finite element Thin plate Isotropic plate Kirchhoff plate java application

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java application for springback analysis of composite plates

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ADVANCES IN ENGINEERING SOFTWARE 2014年 72卷 77-84页

作者： Padovec, Zdenek Shanel, Vit Ruzicka, Milan Dolejs, Norbert Czech Tech Univ Fac Mech Engn Dept Mech Biomech & Mechatron Prague 16607 Czech Republic Letov Letecka Vyroba Sro Prague 19902 Czech Republic

The use of hi-tech thermoplastic matrices (e.g. PEKK, PEEK or PPS) in carbon fiber-reinforced composites is growing, mainly in the aircraft industry. The manufacturing process is carried out at higher temperatures, which leads to residual stresses and dimensional changes of the manufactured part. Our work is focused on making an analytical prediction of the springback angle of C/PPS laminate with textile reinforcement. Better prediction will make the manufacturing tool more precise. Our analytical model took into account the temperature change, the moisture change and resin shrinkage during the cure cycle (which is crucial for semi-crystalline matrices). The analytical model is based on classical lamination theory (CLT) and an equation for through thickness characteristics. The description of the model was written in Matlab code, which was subsequently transformed into java with GUI for easier input of the characteristics of the composite (lay-up, materials, angle of the layer, radii, volumetric fiber fraction and characteristics of the textile reinforcement-number of threads in warp and weft direction, thickness, type of weave, etc.) The results from our program were compared with the results measured by the manufacturer, and good agreement was achieved. (C) 2013 Elsevier Ltd. All rights reserved.

关键词： Analytical solution java application Composite Thermoplastic matrix Fabrics Springback phenomenon

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Transforming agricultural supply chains: Leveraging blockchain-enabled java smart contracts and IoT integration

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ICT EXPRESS 2024年第3期10卷 650-672页

作者： El Mane, Adil Tatane, Khalid Chihab, Younes Ibn Toufail Univ Super Sch Technol Comp Res Lab Kenitra 14000 Morocco Ibn Zohr Univ Inst Natl Sch Appl Sci Comp Sci Math & Applicat Lab Agadir 80000 Morocco

The proposed idea is to give all the agricultural stakeholders secure storage. We must automate several processes utilizing brilliant codes to reduce risks and errors. The suggested schema applies Blockchain, source codes, and IoT on a farm network to enhance the analysis of agrarian datasets and tracking products to raise the productivity of agro-based supply chains. The application's architecture will fix the faults found in earlier research. In the suggested method, sensors give us information about the environment. The Blockchain ledger stores our data in blocks. We create special agricultural automated codes in the treatment layer to automate task decisions. (c) 2024 The Author(s). Published by Elsevier B.V. on behalf of The Korean Institute of Communications and Information Sciences. This is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/4.0/).

关键词： Blockchain java application Smart contracts Agriculture IoT Supply chain management

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TridentShell: An enhanced covert and scalable backdoor injection attack on web applications☆

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JOURNAL OF NETWORK AND COMPUTER applicationS 2024年 223卷

作者： Yu, Xiaobo Meng, Weizhi Liu, Yining Zhou, Fei Wuxi Univ Sch Cyber Secur & Informatizat Wuxi 214105 Jiangsu Peoples R China Tech Univ Denmark SPTAGE Lab DTU Compute Lyngby Denmark Guangxi Informat Ctr Joint Innovat Lab Digital Guangxi Smart Infrastruc Nanning 530000 Peoples R China

Web backdoor attack is an increasingly prevalent network attack that can result in substantial losses for webmasters. During a cyber-attack, system vulnerabilities and web application flaws are usually used to implant a web shell inside victim servers. To mitigate these threats posed by web shells, research has focused on static feature detection, which has been evolved rapidly in recent years. However, static feature detection has inherent limitations and security risks. In this paper, we present TridentShell, a novel web backdoor attack that can inject an invisible backdoor into a victim server without leaving any traces of the attack. Furthermore, TridentShell can circumvent almost all static detection methods. Unlike existing approaches, which leverage traditional encryption and obfuscation technologies to avoid detection, our proposed attack is intended to blend into the web application server naturally. In this work, we introduce enhancements to the original TridentShell, which is not traceable - in theory - since it uses a blockchain-based decentralized C&C server with better presentation capability. The experimental results show that our TridentShell can effectively compromise five different types of java application servers (covering around 87% java application servers in the market), and can scrub any attack traces from the server, making it especially difficult to detect.

关键词： Backdoor attack Web shell Web security java application Static feature detection

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ScriptManager: an interactive platform for reducing barriers to genomics analysis 22

ScriptManager: an interactive platform for reducing barriers...

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Conference on Practice and Experience in Advanced Research Computing (PEARC) - Revolutionary - Computing, Connections, You

作者： Lang, Olivia W. Pugh, B. Franklin Lai, William Km Cornell Univ Dept Computat Biol Ithaca NY 14850 USA Cornell Univ Dept Mol Biol & Genet Ithaca NY USA

ISBN: (纸本)9781450391610

ScriptManager was built to be a lightweight and easy to use genomics analysis tool for novice bioinformaticians. It includes both a graphical interface for easy navigation of inputs and options while also supporting a command line interface for automation and integration with workflow managers like Galaxy. We describe here how a user unfamiliar with the command line can leverage national supercomputing resources using a graphical desktop interface like Open OnDemand to perform their analyses and generate publication quality figures for their research. Widespread adoption of this tool in the genomics community would lower technical barriers to accessing supercomputing resources and allow biochemists to prototype their own workflows that can be integrated into large scale production pipelines. Source code and precompiled binaries available at https://***/CEGRcode/scriptmanager.

关键词： sequencing genomics workflow Galaxy Open OnDemand java application Graphical interface/GUI supercomputing high performance/throughput computing XSEDE OSG

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TridentShell: A Covert and Scalable Backdoor Injection Attack on Web applications 24th

TridentShell: A Covert and Scalable Backdoor Injection Attac...

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24rd International Conference on Information Security (ISC)

作者： Yu, Xiaobo Meng, Weizhi Zhao, Lei Liu, Yining Guilin Univ Elect Technol Sch Comp Sci & Informat Secur Guilin 541004 Peoples R China Tech Univ Denmark Dept Appl Math & Comp Sci DK-2800 Lyngby Denmark Wuhan Univ Sch Cyber Sci & Engn Wuhan 430072 Peoples R China

ISBN: (纸本)9783030913564;9783030913557

Web backdoor attack is a kind of popular network attack, which can cause a serious damage to websites. In practice, cyber attackers often exploit vulnerabilities in the system or web applications to implant a backdoor to a web server. To address this challenge, static feature detection is believed to be an effective solution. However, it may also leave a potential security "hole" that could be exploited by intruders. In this paper, we propose a novel backdoor attack method called TridentShell, which can inject a webshell into the memory of web application server without leaving attack traces. Our attack is able to bypass almost all types of static detection methods. In particular, it attempts to blend itself into the web server and erase attack traces automatically, instead of encrypting or obfuscating the content of webshell to avoid detection. Besides, TridentShell can still be executed even when the webmasters restrict the access to web directory. In the evaluation, we showcase how TridentShell can successfully inject a webshell into five different types of java application servers (covering around 87% java application servers in the market), and can remove the attack traces on the server (increasing the detection difficulty).

关键词： Backdoor attack Webshell Web security java application Static feature detection

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SecureQualitas: A Security Corpus of Real java applications

SecureQualitas: A Security Corpus of Real Java Applications

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International Conference on Cyber Security for Emerging Technologies (CSET)

作者： Benabidallah, Raounak Sadou, Salah Borne, Isabelle Univ Bretagne Sud IRISA Lorient France

ISBN: (纸本)9781728145389

The preventive approach of software security is the basis of what is referred to as secure by design. The principle is to avoid vulnerabilities as soon as the system is designed. Several research work are aimed to this objective. Most of them rely on empirical studies which need a realistic corpus. This corpus holds applications with different vulnerabilities and others without any known vulnerability. To the best of our knowledge, such a security corpus does not exist. In this paper, we present a novel approach based on an automatic annotation process to build a security corpus for real java applications. Our approach takes advantage of several existing code scanners in order to annotate the corpus. We applied our process of vulnerability annotation on a well-known corpus, namely Qualitas Corpus, from the software engineering research community. We provide the resulting security corpus, namely SecureQualitas, to the research community. The experiments we conducted demonstrate that our approach gives better results than the scanners taken alone.

关键词： java application Scanner Software safety java java programming language SERN Security empirical studies Research work Real number Vulnerability auto-marking

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TripleAgent: Monitoring, Perturbation and Failure-Obliviousness for Automated Resilience Improvement in java applications

TripleAgent: Monitoring, Perturbation and Failure-Obliviousn...

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International Symposium on Software Reliability Engineering (ISSRE)

作者： Long Zhang Martin Monperrus KTH Royal Institute of Technology Stockholm Sweden KTH Royal Institute of Technology Sweden

ISBN: (纸本)9781728149837

In this paper, we present a novel resilience improvement system for java applications. The unique feature of this system is to combine automated monitoring, automated perturbation injection, and automated resilience improvement. The latter is achieved thanks to the failure-oblivious computing, a concept introduced in 2004 by Rinard and colleagues. We design and implement the system as agents for the java virtual machine. We evaluate the system on two real-world applications: a file transfer client and an email server. Our results show that it is possible to automatically improve the resilience of java applications with respect to uncaught or mishandled exceptions.

关键词： file servers java virtual machines File servers java java programming language virtual machines java application Resilience Automation java Virtual Machine (JVM)

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