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Dissertations / Theses on the topic 'Electric hasp'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Amir, Asgari Azadeh. "Robust Image Hash Spoofing." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12822.

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With the intensively increasing of digital media new challenges has been created for authentication and protection of digital intellectual property. A hash function extracts certain features of a multimedia object e.g. an image and maps it to a fixed string of bits. A perceptual hash function unlike normal cryptographic hash is change tolerant for image processing techniques. Perceptual hash function also referred to as robust hash, like any other algorithm is prone to errors. These errors are false negative and false positive, of which false positive error is neglected compared to false negat

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Dabek, Frank (Frank Edward) 1977. "A distributed Hash table." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/35525.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2006.<br>Includes bibliographical references (p. 123-132) and index.<br>DHash is a new system that harnesses the storage and network resources of computers distributed across the Internet by providing a wide-area storage service, DHash. DHash frees applications from re-implementing mechanisms common to any system that stores data on a collection of machines: it maintains a mapping of objects to servers, replicates data for durability, and balances load across participating ser

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Metreveli, Zviad. "CPHASH : a cache-partitioned hash table with LRU eviction." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66445.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>In title on title page,"ASH" appears as subscript upper case letters. Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 45-47).<br>In this thesis we introduce CPHASH - a scalable fixed size hash table that supports eviction using an LRU list, and CPSERVER - a scalable in memory key/value cache server that uses CPHASH to implement its hash table. CPHASH uses computation migration to avoid transferring data between cores. Experiments on a 48 core

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Sit, Emil 1977. "Storing and managing data in a distributed hash table." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44711.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>Includes bibliographical references (p. 83-90).<br>Distributed hash tables (DHTs) have been proposed as a generic, robust storage infrastructure for simplifying the construction of large-scale, wide-area applications. For example, UsenetDHT is a new design for Usenet News developed in this thesis that uses a DHT to cooperatively deliver Usenet articles: the DHT allows a set of N hosts to share storage of Usenet articles, reducing their combined storage requirements by a factor

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Kahssay, Endrias(Endrias K. ). "A fast concurrent and resizable Robin Hood hash table." Thesis, Massachusetts Institute of Technology, 2021. https://hdl.handle.net/1721.1/130693.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February, 2021<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 69-70).<br>Concurrent hash tables are among the most important primitives in concurrent programming and have been extensively studied in the literature. Robin Hood hashing is a variant of linear probing that moves around keys to reduce probe distances. It has been used to develop state of the art serial hash tables. However, there is only one existing previous work on a concu

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Crutchfield, Christopher Yale. "Security proofs for the MD6 hash function mode of operation." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44425.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>Includes bibliographical references (p. 79-82).<br>In recent years there have been a series of serious and alarming cryptanalytic attacks on several commonly-used hash functions, such as MD4, MD5, SHA-0, and SHA1 [13, 38]. These culminated with the celebrated work of Wang, Yin, and Yu from 2005, which demonstrated relatively efficient methods for finding collisions in the SHA-1 hash function [37]. Although there are several cryptographic hash functions - such as the SHA-2 family

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Cates, Josh 1977. "Robust and efficient data management for a distributed hash table." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87381.

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8

Lesniewski-Laas, Christopher T. (Christopher Tur) 1980. "Design and applications of a secure and decentralized Distributed Hash Table." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/64582.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 105-114).<br>Distributed Hash Tables (DHTs) are a powerful building block for highly scalable decentralized systems. They route requests over a structured overlay network to the node responsible for a given key. DHTs are subject to the well-known Sybil attack, in which an adversary creates many false identities in order to increase its influence and deny service to honest participants. Defending a

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Ozen, Onur. "On The Security Of Tiger Hash Function." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609117/index.pdf.

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Recent years have witnessed several real threats to the most widely used hash functions which are generally inspired from MD4, such as MD5, RIPEMD, SHA0 and SHA1. These extraordinary developments in cryptanalysis of hash functions brought the attention of the cryptology researchers to the alternative designs. Tiger is an important type of alternative hash functions and is proved to be secure so far as there is no known collision attack on the full (24 rounds) Tiger. It is designed by Biham and Anderson in 1995 to be very fast on modern computers. In two years some weaknesses have been found f

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Temelkuran, Baris 1980. "Hap-Shu : a language for locating information in HTML documents." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87882.

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11

Mack, Hugh Jonathan Devereux. "How has gambling become normalised in New Zealand?" Thesis, University of Canterbury. School of Business and Economics, 2015. http://hdl.handle.net/10092/11033.

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This study investigated the normalisation of gambling within the New Zealand context to explore whether an ausugenic environment exists, using qualitative interviews in combination with a self-ethnography. An ausugenic environment is one where gambling has become embedded in the cultural attitudes and behaviour of a society to the extent that it is no longer considered to be an abnormal or noteworthy activity. In order to investigate this two phases of qualitative interviews were conducted with the first being with members of the public who were also asked to record a diary of gambling relat

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Du, Rong. "Secure electronic tendering." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16606/1/Rong_Du_Thesis.pdf.

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Tendering is a method for entering into a sales contract. Numerous electronic tendering systems have been established with the intent of improving the efficiency of the tendering process. Although providing adequate security services is a desired feature in an e-tendering system, current e-tendering systems are usually designed with little consideration of security and legal compliance. This research focuses on designing secure protocols for e-tendering systems. It involves developing methodologies for establishing security requirements, constructing security protocols and using formal

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Du, Rong. "Secure electronic tendering." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16606/.

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Tendering is a method for entering into a sales contract. Numerous electronic tendering systems have been established with the intent of improving the efficiency of the tendering process. Although providing adequate security services is a desired feature in an e-tendering system, current e-tendering systems are usually designed with little consideration of security and legal compliance. This research focuses on designing secure protocols for e-tendering systems. It involves developing methodologies for establishing security requirements, constructing security protocols and using formal

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Geum, Seong. "An approximate load balancing parallel hash join algorithm to handle data skew in a parallel data base system." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/9222.

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Guzý, Ladislav. "Elektronický podpis a jeho využití v účetnictví." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-197614.

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Diploma thesis is focused on matters of electronic signatures and their possible usage in accounting and business process. The paper is divided into two parts. Subject of the first part is general analysis of terminology and characteristics of electronic signature, certificates and certification authorities and time stamps, including analysis of strengths and weaknesses of these services. At the end of this theory part are outlined some of the most common choices of using electronic signature in accounting system. In second part are analysed results of research, which was performed by sending

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Kritzinger, Wouter Thomas. "The effect webpage body keywords location has on ranking in search engines results : an empirical study /." Thesis, Click here for online access, 2005. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1077&context=td_cput.

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Brown, Jordan Lee. "Verifiable and redactable medical documents." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44890.

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The objective of the proposed research is to answer the question of how to provide verification and redactability to medical documents at a manageable computation cost to all parties involved. The approach for this solution examines the use of Merkle Hash Trees to provide the redaction and verification characteristics required. Using the Merkle Hash Tree, various Continuity of Care Documents will have their various elements extracted for storage in the signature scheme. An analysis of the approach and the various characteristics that made this approach a likely candidate for success are provid

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Šėža, Vygintas. "Ribotos sumos elektroninių pinigų cirkuliacijos sistema." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100813_112057-06721.

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Sparti elektroninės komercijos plėtra ir augimas natūraliai sąlygojo modernių, online aplinkai pritaikytų atsiskaitymo, mokėjimo sistemų atsiradimą. Itin svarbu tai, kad technologijų tobulėjimo pasėkoje ne tik eksponentiškai išaugo perduodamos informacijos kiekis, tačiau pakito pačios informacijos prigimtis – ji pati savaime, per se, tapo ekonominę vertę turinčiu objektu. Vartotojų noras saugiai atsiskaityti internete įtakojo, kad „online“ aplinkoje mažėja naudojimas tokių tradicinių atsiskaitymo priemonių kaip mokėjimo kortelės. Interneto vartotojai vis rečiau pasitiki šiuo mokėjimo įrankiu,

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Smrž, Jan. "Skupinové digitální podpisy." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220375.

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Digital signatures are widespread in IT nowadays. In some cases there is emphasized the security of signer identity when signing an electronic message. For this type of signature group digital signatures are suitable. In this thesis basic cryptographic functions are presented which are used for group digital signatures. The principle of group signatures is explained, its advantages and nowadays use. Further are explained electronic election and it dis- and advantages. The practical part is a design and implementation of system suitable for electronic election allowing anonymity of voters using

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Young, Brent O. J. "An examination of class number for [reproduction of quadratic extensions] where [reproduction of square root of d] has continued fraction expansion of period three /." Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/youngb/brentyoung.pdf.

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Daye, Courtney D. "An analysis of the sex distribution of juries in sexual offences [sic] cases in Jamaica to determine if this factor has any effect on their verdicts /." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447801.

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Thesis (M.J.S.)--University of Nevada, Reno, 2007.<br>"May 2007." Includes bibliographical references (leaves 65-72). Online version available on the World Wide Web. Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2007]. 1 microfilm reel ; 35 mm.

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Ding, Celina. "An exploratory review of consumer trust and its antecedents in E-commerce this dissertation [thesis] has been submitted to Auckland University of Technology in partial fulfilment of the degree of Master of Business, 2003." Full thesis. Abstract, 2003.

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23

Daddabbo, Gianvincenzo. "Virtual ADAS/AD ECU Validation & Design Scenario Tool in MIL and HIL environment." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25045/.

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Autonomous Driving is the main trend that automotive industry is following. Starting from the first driver assistance systems, nowadays car are growing and growing in complexity, becoming a four-wheeled supercomputer that is able to perform a lot of driving actions totally autonomously. This thesis aims to describe what are the functionalities and methodologies that contributes to this amazing progress. The entire activity is based on a tool for automatic scenario generation. In the first two chapters the context in which the tool is placed is introduced, highlighting the method by whic

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Hideblad, Daniel. "Equipment for Accelerated Vibration Testing." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-62587.

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The increasing complexity with the decrease in size of EEE – components (Electronic, electric and electromagnetic) raises the question on how higher energy frequencies will affect the components and their continuous development. The most common vibration testing equipment currently in use within the automotive industry and SCANIA CV AB are the electrodynamic shaker (ED system). This thesis covers the characteristics of different vibration testing equipment while analysing their strengths and weaknesses, not only for the automotive industry but also including equipment more commonly handled wit

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Aspiras, Theus Herrera. "Hierarchical Autoassociative Polynomial Network for Deep Learning of Complex Manifolds." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1449104879.

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Pelini, Nicholas Michael. "Netlist Security Algorithm Acceleration Using OpenCL on FPGAs." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1501861339318045.

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Beran, Martin. "Elektronická podatelna VUT 2." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2007. http://www.nusl.cz/ntk/nusl-412777.

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This dissertation thesis attends to problems of electronic registry for VUT. It deals with the principal of electronic registry functioning, electronic signature and it compares offer of the commercial registries. It goes in for the proposal and implementation of the electronic registry for VUT. Since the using of the e- registry on all public service Office was legalized the people can avoid long queues and the employees are avoided from the stress before dead lines. By the communication through the electronic registry is very important the electronical signature. It is almost a full-valued a

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Jentschura, Ulrich. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory. - (This manuscript is also available - in the form of a book - from Shaker Verlag GmbH, Postfach 101818, 52018 Aachen, Germany world-wide web address: http://www.shaker.de, electronic-mail address: info@shaker.de. It has been posted on the web sites of Dresden University of Technology with the permission of the publisher.)." Aachen : Shaker, 2003. http://deposit.d-nb.de/cgi-bin/dokserv?idn=968750435.

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Jentschura, Ulrich. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory. - (This manuscript is also available - in the form of a book - from Shaker Verlag GmbH, Postfach 101818, 52018 Aachen, Germany world-wide web address: http://www.shaker.de, electronic-mail address: info@shaker.de. It has been posted on the web sites of Dresden University of Technology with the permission of the publisher.)." Doctoral thesis, Technische Universität Dresden, 2002. https://tud.qucosa.de/id/qucosa%3A24235.

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The accurate calculation of atomic spectra, including radiative corrections, is one of the rather challenging tasks in theoretical physics. The entire formalism of quantum (gauge) field theory, augmented by the difficulties of the bound-state formalism, is needed for an accurate understanding of the relevant physics at the level of current high-precision spectroscopy. In this thesis, several calculations in this area are described in detail. Investigations on large-order perturbation-theory effects (and predictive limits of perturbation theory) supplement these investigations. In the context o

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Damadzadeh, Behzad, and Hamideh Jabari. "Biodegradable Composites : Processing of thermoplastic polymers for medical applications." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19329.

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Despite the recent development in PLA and PLGA based medical devices, there are still needs to further improve the mechanical performance of bioresorbable medical implants and their bioactivity. This is normally done by optimizing the filler compositions in selected groups ofbiodegradable polymer matrices. In this study, the effects of various filler levels on mechanical strength and thermal properties of PLA and PLGA composites were investigated. Composites containing different dosage of osteoconductive HAp with various particles size (0-5μm, 0-50 μm, nano size), β-TCP, bioactive glass and bi

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Duong, Phuoc Tra My <1991&gt. "WHAT MAKES OPPO SUCCEED IN THE VIETNAM MARKET? Background of the study Vietnam has become an emerging country and attractive retail market in the globe (Deloitte, 2014). Modern retail platform was introduced and have been blooming in Vietnam such as convenience stores, special stores and shopping centers (Trinh & Tran, 2014). The country is in the progress of transforming into digital economy, evidenced through high growth in electronic commerce and customer interaction through social network, etc. (Cameron et al., 2019). According to the Statista (2020), number of smartphone users in Vietnam was nearly 36 million in the end of 2019 and it is expected at 43 million by 2022. The growth in smartphone market was captured at 84% in 2017 and 95% of people in the cities have owned smartphone while the percentage of people with smartphone usage in rural area is reached up 68% (Nielsen, 2019). One of the attractive points in smartphone market is high population based with more than 94 million people (General Statistics Office, 2020). Vietnamese people spent more time reading news, playing games and conducting social interactions through social media network (Appota, 2018). These factors promote the entry of giant smartphone and electronic manufacturers such as Samsung and LG. Samsung has penetrated Vietnam for a long time and the Korean manufacturers established some factories in the country to enjoy lower tax rate and attractive labor cost (Sturgeon & Zylberberg, 2016)." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/17718.

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Rationales Currently, Vietnamese people have variety of product choice in smartphone market. The survey conducted by Q&Me (2018) revealed top smartphone brands in Vietnam, including Apple, Samsung, Oppo, Xiaomi and Nokia, in which the first three smartphone brands have gained high brand recognition from the respondents. Key competitive advantage of Apple is luxurious and strong proud-to-have image while Samsung is positioned as a band of quality and design and Oppo is more famous in term of its camera features (Q&Me, 2018). However, Apple has not been setup its official store in Vietnam while

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Moreno, Moreno Flavio David. "Reconocimiento de gestos corporales, utilizando procesamiento digital de imágenes para activar sistema de alarma." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1283.

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La investigación realizada a los sistemas de seguridad electrónica de edificios, plantea como objetivo principal el reconocimiento de tres gestos de un lenguaje corporal del personal de vigilancia, y la consecuente activación de alarma en forma automática. Inicialmente se realizó una encuesta dirigida a las administraciones y personal de edificios, para saber cuales eran las ocurrencias que vulneraban la seguridad de un edificio multifamiliar, luego se observaron y analizaron las imágenes capturadas por una cámara de vigilancia ubicada en la recepción, identificando las ocurrencias más vulne

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Chvatík, Štěpán. "Asynchronní motor s vnějším rotorem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377075.

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Mallangi, Siva Sai Reddy. "Low-Power Policies Based on DVFS for the MUSEIC v2 System-on-Chip." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229443.

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Multi functional health monitoring wearable devices are quite prominent these days. Usually these devices are battery-operated and consequently are limited by their battery life (from few hours to a few weeks depending on the application). Of late, it was realized that these devices, which are currently being operated at fixed voltage and frequency, are capable of operating at multiple voltages and frequencies. By switching these voltages and frequencies to lower values based upon power requirements, these devices can achieve tremendous benefits in the form of energy savings. Dynamic Voltage a

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Fujdiak, Radek. "Analýza a optimalizace datové komunikace pro telemetrické systémy v energetice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-358408.

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Telemetry system, Optimisation, Sensoric networks, Smart Grid, Internet of Things, Sensors, Information security, Cryptography, Cryptography algorithms, Cryptosystem, Confidentiality, Integrity, Authentication, Data freshness, Non-Repudiation.

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Liu, Ko-Chun, and 劉可鈞. "An Electronic Cash Scheme Based on Chameleon Hash." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/r8cg86.

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碩士<br>臺中技術學院<br>資訊工程系碩士班<br>99<br>In recent years considerable attention has arisen over the electronic cash in various electronic commerce services. In modern life, to buy commodity through Internet is the major trend, so electronic cash systems become more and more important. A payment scheme of electronic commerce is using a credit card. In this way, the user has no privacy because the bank knows the user''s transaction records. In order to protect user''s privacy, it will be a target to design the secure anonymous electronic cash scheme. The chameleon hash is a trapdoor

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Beleza, João Miguel Almeida. "Adaptation of an Harp for MIDI Implementation and Sound Amplification." Master's thesis, 2019. https://hdl.handle.net/10216/121424.

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Yeh, Shu-chen, and 葉書辰. "On the Design of Electronic CheckBook and Electronic Traveler’s Check Based on One-Way Hash Chain." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/38046195458537348151.

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碩士<br>逢甲大學<br>資訊工程所<br>95<br>Recently, diversified electronic transactions such as the Electronic Cash (EC), Electronic Check and Electronic Traveler’s Check (ETC) come into existence because of the diffusion of electronic transactions and the boom of the internet. Users are assailed by the characteristic of EC that it cannot track the identification of users. Nonetheless, Electronic Check and ETC could protect the right of users, since they must have the digital signatures of users to be in effect. However, it is not efficient in the recent year for users and banks to reapply ad infinitum aft

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Liu, Shih-Chin, and 劉世勤. "An Electronic Traveler''s Check System Based on the Hash Function." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/23803196964889472365.

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碩士<br>世新大學<br>資訊管理學系<br>92<br>Nowadays, Electronic-Commerce has been booming as the Internet gets more and more popular. At present, many kinds of Electronic Services including Electronic Payment, Electronic Auction and Electronic Voting have been developed on the Internet. The most successful one among these services is the Electronic Payment System such as Electronic Cash, Electronic Check and Electronic Wallet. Today, by paying through the E-Cash or E-Wallet system, people can shop from the Internet, buy stuff in a convenience store or take the public transportation with great ea

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Chen, Wei-Kuei, and 陳維魁. "A Study of One-Way Hash Functions on Digital Cash and Electronic Votes." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/11909016243454484055.

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博士<br>國立交通大學<br>資訊工程系<br>89<br>Due to fast progress of computer technologies, the efficiency of data processing and the speed of information generation have been greatly improved. Moreover, the techniques of networks largely shorten the communicating time among distributed entities. Many advanced network services have been proposed in the literature to take the advantages of the techniques. Among these services, digital cash (or electronic cash) is a popular one since this service makes it possible for a payer in a remote site to pay his electronic cash through electronic communication network

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Stowers, Stefanie Janell, and 史絲黛. "A Study of How Electronic Word of Mouth has Boosted Marketing in the Restaurant Industry." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/zbh84z.

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碩士<br>輔仁大學<br>國際創業與經營管理學程碩士在職專班<br>107<br>The purpose of this paper is to study the impact of electronic word-of-mouth communication over social networking sites on consumer purchase decisions. With the growing availability of food and product photography available at the click of a button, web-based consumer opinion platforms are now an emerging marketing tool that is playing an increasingly important role in consumer purchase decisions and eliminating the need for expensive strategies based around buying advertisements. This study will look at the way electronic word of mouth is being used t

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Miller, Daniel. "A Hash-Chain Based Method for Full or Partial Authentication of Communication in a Real-Time Wireless Environment." Thesis, 2010. http://hdl.handle.net/10012/5281.

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Real-time media streams are a common application on the Internet today. For many such streams, it is necessary to provide authentication, data integrity, and non-repudiation. Some applications where this type of security may be necessary include voice-over-IP (VoIP) calls, transmission of sensitive data such as medical records or personal information, or financial data that needs to be updated in real-time. It is important to be able to balance the need for security with the constraints of the environment, where data must be delivered in a limited amount of time. This thesis examines and cla

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Chen, Hsien-ching, and 陳憲卿. "Cryptanalysis and Improvement of New Electronic Traveler''s Check Scheme based on One-way Hash Function." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/79706546303900761678.

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碩士<br>南華大學<br>資訊管理學系碩士班<br>99<br>Because of the rapid development of electronic commerce, electronic payment schemes have been intensively studied for several years. But there still lack large number of researchers devoted in electronic traveler''s check system. Recently, Liaw et al. proposed a hash-based electronic traveler’s check system. They claimed that their scheme was secure. However, in this study we will indicate that their scheme is vulnerable to the key compromise impersonation and parallel session attacks. Further, we will improve their scheme to prevent such attacks. Our

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Juliato, Marcio. "Fault Tolerant Cryptographic Primitives for Space Applications." Thesis, 2011. http://hdl.handle.net/10012/5876.

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Spacecrafts are extensively used by public and private sectors to support a variety of services. Considering the cost and the strategic importance of these spacecrafts, there has been an increasing demand to utilize strong cryptographic primitives to assure their security. Moreover, it is of utmost importance to consider fault tolerance in their designs due to the harsh environment found in space, while keeping low area and power consumption. The problem of recovering spacecrafts from failures or attacks, and bringing them back to an operational and safe state is crucial for reliability. Despi

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Dvořáková, Tereza. "Elektronická identifikace osob v soukromoprávních poměrech." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-391324.

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Electronic identification of persons in private law relationships Abstract This diploma thesis deals with the topic of electronic identification of persons in private law relationships. It defines all types of electronic identifiers, which can be used in private law relationships by both legal entities and so natural persons. This paper summarizes the young and not for long used legislations. This legislation is not often used in practice and for that reason it has the only commentary. The case law for this problematics is also lacking and that is why it could not be used as one of the sources

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"MEMS Harsh Environment Sensors for Earth and Space Exploration." Doctoral diss., 2013. http://hdl.handle.net/2286/R.I.17740.

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abstract: Harsh environments have conditions that make collecting scientific data difficult with existing commercial-off-the-shelf technology. Micro Electro Mechanical Systems (MEMS) technology is ideally suited for harsh environment characterization and operation due to the wide range of materials available and an incredible array of different sensing techniques while providing small device size, low power consumption, and robustness. There were two main objectives of the research conducted. The first objective was to design, fabricate, and test novel sensors that measure the amount of exposu

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Cardoso, Ana Isabel Gonçalves Pinheiro. "MOBI.E: case of a disruptive technological innovation that has gained worldwide leadership." Master's thesis, 2019. http://hdl.handle.net/10071/19817.

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The general concern with environmental issues and the search for clean, sustainable and long-lasting alternatives have become issues of global relevance over the past years. The objective is to ensure the quality of current environment, as well as the sustainability and quality of life of future generations. Bearing this in mind, one can see a change in the market in this respect. Young innovators and entrepreneurs come up with ideas and new business projects every day. Many industries have already adapted to this reality and many new ones have also emerged. Therefore, as it was bound to happ

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Pinto, Rogério Henrique de Magalhães. "Avaliação da camada intermetálica em placas de circuito impresso com acabamento superficial HASL com diferentes processos de soldagem." Master's thesis, 2015. http://hdl.handle.net/1822/39510.

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Dissertação de mestrado integrado em Engenharia de Materiais<br>O principal acabamento superficial utilizado em placas de circuito impresso era o HASL (Hot Air Solder Leveling) usando uma liga de solda Sn63Pb37 (% ponderal). No entanto, com a passagem para processos de soldagem “lead free”, e tendo em conta os problemas inerentes ao acabamento, este foi excluído dos produtos ligados à indústria automóvel. O principal objetivo da dissertação foi avaliar a influência de diferentes perfis térmicos e processos de soldagem sem chumbo na morfologia, composição química e na resistência mecânica

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Ismailova, Rita. Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614919/index.pdf.

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The subject of this thesis is the study of cryptographic hash functions, which utilize block ciphers as underlying chain functions. It is mainly concerned with the analysis of the three hash algorithms, the Whirlpool, Gr&oslash<br>stl and Grindahl. All these hash functions have underlying block ciphers that are modified versions of the Advance Encryption Standard and we investigate the behavior of these block ciphers under the integral attack. Statistical tests, such as the avalanche test and the collision test, are the regular tools for examining the hash function security. In this work, we i

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Очеретний, Владислав Олегович, та Vladyslav Olegovich Ocheretnyi. "Дослідження методів безпечного гешування для забезпечення цілісності та автентичності інформації у автоматизованих банківських системах". Master's thesis, 2020. http://elartu.tntu.edu.ua/handle/lib/33578.

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Роботу виконано на кафедрі кібербезпеки Тернопільського національного технічного університету імені Івана Пулюя Міністерства освіти і науки України Керівник роботи: д.т.н., професор кафедри кібербезпеки Карпінський Микола Петрович, Тернопільський національний технічний університет імені Івана Пулюя Рецензент: д.т.н., професор кафедри комп’ютерних наук Приймак Микола Володимирович , Тернопільський національний технічний університет імені Івана Пулюя<br>Дана магістерська кваліфікаційна робота присвячена дослідженню механізмів забезпечення автентичності за допомогою геш-функцій на основі МА

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