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Статті в журналах з теми "Galois processor"
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Popovici, E. M., and P. Fitzpatrick. "Algorithm and architecture for a Galois field multiplicative arithmetic processor." IEEE Transactions on Information Theory 49, no. 12 (December 2003): 3303–7. http://dx.doi.org/10.1109/tit.2003.820026.
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Chen, Yajing, Shengshuo Lu, Cheng Fu, David Blaauw, Ronald Dreslinski, Trevor Mudge, and Hun-Seok Kim. "A Programmable Galois Field Processor for the Internet of Things." ACM SIGARCH Computer Architecture News 45, no. 2 (September 14, 2017): 55–68. http://dx.doi.org/10.1145/3140659.3080227.
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Zhai, Qingbo, Yong Bai, and Dake Liu. "General Galois processor for transmitters in 5G/6G base stations." China Communications 18, no. 10 (October 2021): 129–34. http://dx.doi.org/10.23919/jcc.2021.10.008.
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Moudgill, Mayan, Andrei Iancu, and Daniel Iancu. "Galois Field Instructions in the Sandblaster 2.0 Architectrue." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/129698.
Повний текст джерелаАнотація:
This paper presents a novel approach to implementing multiplication of Galois Fields with . Elements of GF() can be represented as polynomials of degree less than N over GF(2). Operations are performed modulo an irreducible polynomial of degree n over GF(2). Our approach splits a Galois Field multiply into two operations, polynomial-multiply and polynomial-remainder over GF(2). We show how these two operations can be implemented using the same hardware. Further, we show that in many cases several polynomial-multiply operations can be combined before needing to a polynomial-remainder. The Sandblaster 2.0 is a SIMD architecture. It has SIMD variants of the poly-multiply and poly-remainder instructions. We use a Reed-Solomon encoder and decoder to demonstrate the performance of our approach. Our new approach achieves speedup of 11.5x compared to the standard SIMD processor of 8x.
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Weku, Winsy. "Model Proyeksi (X/Z2, Y/Z2) pada Kurva Hesian Secara Paralel Menggunakan Mekanisme Kriptografi Kurva Eliptik." JURNAL ILMIAH SAINS 12, no. 1 (April 30, 2012): 65. http://dx.doi.org/10.35799/jis.12.1.2012.404.
Повний текст джерелаАнотація:
MODEL PROYEKSI (X/Z2, Y/Z2) PADA KURVA HESIAN SECARA PARALEL MENGGUNAKAN MEKANISME KRIPTOGRAFI KURVA ELIPTIKABSTRAK Suatu kunci publik, Elliptic Curve Cryptography (ECC) dikenal sebagai algoritma yang paling aman yang digunakan untuk memproteksi informasi sepanjang melakukan transmisi. ECC dalam komputasi aritemetika didapatkan berdasarkan operasi inversi modular. Inversi modular adalah operasi aritmetika dan operasi yang sangat panjang yang didapatkan berdasar ECC crypto-processor. Penggunaan koordinat proyeksi untuk menentukan Kurva Eliptik/ Elliptic Curves pada kenyataannya untuk memastikan koordinat proyeksi yang sebelumnya telah ditentukan oleh kurva eliptik E: y2 = x3 + ax + b yang didefinisikan melalui Galois field GF(p)untuk melakukan operasi aritemtika dimana dapat diketemukan bahwa terdapat beberapa multiplikasi yang dapat diimplementasikan secara paralel untuk mendapatkan performa yang tinggi. Pada penelitian ini, akan dibahas tentang sistem koordinat proyeksi Hessian (X/Z2, Y,Z2) untuk meningkatkan operasi penggandaan ECC dengan menggunakan pengali paralel untuk mendapatkan paralel yang maksimum untuk mendapatkan hasil maksimal. Kata kunci: Elliptic Curve Cryptography, Public-Key Cryptosystem, Galois Fields of Primes GF(p PROJECTION MODEL (X/Z2, Y/Z2) ON PARALLEL HESIAN CURVE USING CRYPTOGRAPHY ELIPTIC CURVE MECHANISM ABSTRACT As a public key cryptography, Elliptic Curve Cryptography (ECC) is well known to be the most secure algorithms that can be used to protect information during the transmission. ECC in its arithmetic computations suffers from modular inversion operation. Modular Inversion is a main arithmetic and very long-time operation that performed by the ECC crypto-processor. The use of projective coordinates to define the Elliptic Curves (EC) instead of affine coordinates replaced the inversion operations by several multiplication operations. Many types of projective coordinates have been proposed for the elliptic curve E: y2 = x3 + ax + b which is defined over a Galois field GF(p) to do EC arithmetic operations where it was found that these several multiplications can be implemented in some parallel fashion to obtain higher performance. In this work, we will study Hessian projective coordinates systems (X/Z2, Y,Z2) over GF (p) to perform ECC doubling operation by using parallel multipliers to obtain maximum parallelism to achieve maximum gain. Keywords: Elliptic Curve Cryptography , Public-Key Cryptosystem , Galois Fields of Primes GF(p)
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Kim, Kyungho, Seungju Choi, Hyeokdong Kwon, Hyunjun Kim, Zhe Liu, and Hwajeong Seo. "PAGE—Practical AES-GCM Encryption for Low-End Microcontrollers." Applied Sciences 10, no. 9 (April 30, 2020): 3131. http://dx.doi.org/10.3390/app10093131.
Повний текст джерелаАнотація:
An optimized AES (Advanced Encryption Standard) implementation of Galois Counter Mode of operation (GCM) on low-end microcontrollers is presented in this paper. Two optimization methods are applied to proposed implementations. First, the AES counter (CTR) mode of operation is speed-optimized and ensures constant timing. The main idea is replacing expensive AES operations, including AddRound Key, SubBytes, ShiftRows, and MixColumns, into simple look-up table access. Unlike previous works, the look-up table does not require look-up table updates during the entire encryption life-cycle. Second, the core operation of Galois Counter Mode (GCM) is optimized further by using Karatsuba algorithm, compact register utilization, and pre-computed operands. With above optimization techniques, proposed AES-GCM on 8-bit AVR (Alf and Vegard’s RISC processor) architecture from short-term, middle-term to long-term security levels achieved 415, 466, and 477 clock cycles per byte, respectively.
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Acevedo, Javier, Robert Scheffel, Simon Wunderlich, Mattis Hasler, Sreekrishna Pandi, Juan Cabrera, Frank Fitzek, Gerhard Fettweis, and Martin Reisslein. "Hardware Acceleration for RLNC: A Case Study Based on the Xtensa Processor with the Tensilica Instruction-Set Extension." Electronics 7, no. 9 (September 8, 2018): 180. http://dx.doi.org/10.3390/electronics7090180.
Повний текст джерелаАнотація:
Random linear network coding (RLNC) can greatly aid data transmission in lossy wireless networks. However, RLNC requires computationally complex matrix multiplications and inversions in finite fields (Galois fields). These computations are highly demanding for energy-constrained mobile devices. The presented case study evaluates hardware acceleration strategies for RLNC in the context of the Tensilica Xtensa LX5 processor with the tensilica instruction set extension (TIE). More specifically, we develop TIEs for multiply-accumulate (MAC) operations for accelerating matrix multiplications in Galois fields, single instruction multiple data (SIMD) instructions operating on consecutive memory locations, as well as the flexible-length instruction extension (FLIX). We evaluate the number of clock cycles required for RLNC encoding and decoding without and with the MAC, SIMD, and FLIX acceleration strategies. We also evaluate the RLNC encoding and decoding throughput and energy consumption for a range of RLNC generation and code word sizes. We find that for GF ( 2 8 ) and GF ( 2 16 ) RLNC encoding, the SIMD and FLIX acceleration strategies achieve speedups of approximately four hundred fold compared to a benchmark C code implementation without TIE. We also find that the unicore Xtensa LX5 with SIMD has seven to thirty times higher RLNC encoding and decoding throughput than the state-of-the-art ODROID XU3 system-on-a-chip (SoC) operating with a single core; the Xtensa LX5 with FLIX, in turn, increases the throughput by roughly 25% compared to utilizing only SIMD. Furthermore, the Xtensa LX5 with FLIX consumes roughly four orders of magnitude less energy than the ODROID XU3 SoC.
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Srinivasan, M., and G. M. Tamilselvan. "VLSI Implementation of Low Power High Speed ECC Processor Using Versatile Bit Serial Multiplier." Journal of Circuits, Systems and Computers 26, no. 07 (March 17, 2017): 1750114. http://dx.doi.org/10.1142/s0218126617501146.
Повний текст джерелаАнотація:
In this paper, an area competent field-programmable gate array (FPGA) execution scheme of elliptic curve cryptography (ECC) is depicted. There are numerous limitations in traditional encryption algorithms such us Rivest Shamir Adleman (RSA), Advanced Encryption Standard (AES) in respect of security, power, and resources at the real-time performance. The ECC is mounting as an imperative cryptography, and gives you an idea about a promise to be the substitute of RSA. In this paper, ECC processor architecture over Galois Fields (GFs) with the multitalented bit serial multiplier is depicted which accomplishes the greatest area and power performance over traditional digit-serial multiplier. In addition, the vigilant scheduling operation was employed to diminish the involvedness of logic unit operations in ECC processor. The anticipated architecture is executed on vertex4 FPGA expertise in Xilinx software. We demonstrate that results perk up the performance of the enhanced design by contrasting with the traditional design.
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Faisal, Md Ibrahim, Zahra Jeddi, Esmaeil Amini, and Magdy Bayoumi. "A Flexible Architecture for Finite Field Galois Fields(2m) Arithmetic Processor." Journal of Low Power Electronics 7, no. 3 (August 1, 2011): 314–27. http://dx.doi.org/10.1166/jolpe.2011.1150.
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Lázaro, Cristiane Alexandra, Hércules De Araujo Feitosa, and Marcelo Reicher Soares. "Lógica da Dedutibilidade: o axioma modal B e adjunções." BRAZILIAN ELECTRONIC JOURNAL OF MATHEMATICS 2, no. 3 (December 22, 2020): 52–69. http://dx.doi.org/10.14393/bejom-v2-n3-2021-54740.
Повний текст джерелаАнотація:
A lógica da dedutibilidade, ou lógica TK, formaliza no ambiente proposicional a definição do operador de consequência de Tarski. Neste processo de formalização da noção de dedutibilidade, o sistema lógico gerado, a lógica TK, tem um caráter modal para o conceito de dedução. Ela estende a lógica proposicional clássica por meio de um operador unário que retrata, na linguagem da lógica, o operador de consequência de Tarski. A lógica TK tem como modelo algébrico as TK-álgebras e como modelo topológico/conjuntista os espaços quase topológicos, ou espaços de Tarski. Os operadores modais da lógica TK, na sua contraparte topológica, estão associados aos conceitos de fecho e interior, porém estes espaços não coincidem com os usuais espaços topológicos. Iniciamos com a apresentação destas noções. Por outro lado, as conexões de Galois, que têm sua origem motivada na Teoria de Galois, são obtidas a partir dos pares de Galois, que atuam em estruturas de ordem. Flexões nos sentidos em que as ordens entre estas estruturas se aplicam geram os pares de Galois. Num segundo momento, apresentamos estas noções. Inicialmente, constatamos que os operadores de interior e fecho definidos sobre os espaços quase topológicos não determinam algum par de Galois. Mas o que fariam estes operadores caírem na condição de algum par de Galois? Quando analisado no contexto lógico, vislumbramos que a inclusão do conhecido axioma modal B à lógica TK nos daria um tal par. Assim, a contrapartida de tal axioma, no contexto dos espaços quase topológicos, nos levou à obtenção de uma adjunção a partir dos seus respectivos operadores de fecho e interior.
Дисертації з теми "Galois processor"
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Tergino, Christian Sean. "Efficient Binary Field Multiplication on a VLIW DSP." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/33693.
Повний текст джерелаАнотація:
Modern public-key cryptography relies extensively on modular multiplication with long operands. We investigate the opportunities to optimize this operation in a heterogeneous multiprocessing platform such as TI OMAP3530. By migrating the long operand modular multiplication from a general-purpose ARM Cortex A8 to a specialized C64x+ VLIW DSP, we are able to exploit the XOR-Multiply instruction and the inherent parallelism of the DSP. The proposed multiplication utilizes Multi-Precision Binary Polynomial Multiplication with Unbalanced Exponent Modular Reduction. The resulting DSP implementation performs a GF(2^233) multiplication in less than 1.31us, which is over a seven times speed up when compared with the ARM implementation on the same chip. We present several strategies for different field sizes and field polynomials, and show that a 360MHz DSP easily outperforms the 500MHz ARM.Master of Science
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Онай, Микола Володимирович. "Методи та засоби підвищення ефективності реалізації обчислювальних операцій у скінченних полях". Doctoral thesis, Київ, 2017. https://ela.kpi.ua/handle/123456789/20968.
Повний текст джерелаАнотація:
У дисертаційній роботі вирішено актуальну науково-прикладну задачу – підвищення продуктивності систем цифрової обробки даних та криптографічних перетворень, забезпечення завадостійкості зберігання і передачі даних за рахунок створення ефективних технічних засобів для виконання обчислень у скінченних полях шляхом структурно-логічної оптимізації архітектур апаратних засобів, що реалізують процеси виконання операцій у полях Галуа.
Запропоновано метод виконання операцій над елементами поля GF(2m). Особливістю даного методу, на відміну від існуючих, є застосування табличного зберігання елементів поля у многочленному та степеневому їх поданні з можливістю розрідженого формування таблиці елементів поля, що зменшує витрати пам’яті для її зберігання. Розроблений метод забезпечує зростання швидкодії на 15% порівняно з існуючим методом.
Запропоновано модифікацію методу піднесення до степеня елементів поля GF(p) з ковзним вікном, яка забезпечує приріст швидкодії на 7-9 %.
Спроектовано на ПЛІС фірми Xilinx процесор Галуа, що орієнтований на виконання операцій у скінченних полях виду GF(p) та GF(2m).
Запропоновано програмістську модель процесора Галуа, яка дозволяє розробляти програмне забезпечення довільної складності мовою Асемблера проце-сора Галуа.
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Battafarano, Dalila. "La tipografia come identità visiva del Galles: un processo storico-culturale di natura nazionalista." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21332/.
Повний текст джерелаАнотація:
Questo elaborato si propone di offrire una riflessione sulla doppia natura della comunicazione, da un lato verbale-testuale, dall’altro grafico-visiva, attraverso una valutazione sul ruolo e l’essenza della tipografia. Di conseguenza, si è scelto di prendere in esame il caso del Galles, il cui governo ha commissionato un progetto per rilanciare l’immagine del paese nel mondo, investendo dunque in comunicazione visiva per definire e divulgare l’identità nazionale. In un primo momento, l’elaborato espone la storia del Galles, mettendo in luce il sentimento nazionalista della popolazione; sviluppa poi la definizione attorno al concetto di comunicazione; si conclude infine presentando l’esempio gallese, per dimostrare come l’elemento visivo possa effettivamente comunicare tanto quanto l’elemento testuale.
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Barbosa, Vanessa de Frias [UNESP]. "Caracterização do perfil da ação do ácido gálico e seus derivados sobre processos oxidativos in vitro e ex vivo." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/87981.
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barbosa_vf_me_arafcf.pdf: 526140 bytes, checksum: 50d8a074a37389b25908e0fd537d9859 (MD5)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Compostos fenólicos são conhecidos por possuírem propriedades antioxidantes que influenciam na qualidade dos alimentos. O ácido gálico e seus derivados apresentam propriedades antioxidantes, antimicrobiana e propriedades antimutagênicas. Neste trabalho avaliamos a ação desses compostos sobre processos oxidativos in vitro e ex vivo sendo: i) Modelos químicos na supressão de formas oxidantes de ABTS +, DPPH HOCl, H2O2, O2 -, NO e taurina cloramina; ii) Sistemas enzimáticos como HRP e MPO; iii) Sistemas celulares com polimorfonucleares e eritrócitos frente a AAPH e HOCl. Os ensaios envolvendo as espécies oxidativas na presença de ácido gálico e derivados mostraram uma boa inibição, sendo que a amostras triacetato de ácido gálico mostrou ser a melhor das amostras testadas. Em relação aos sistemas enzimáticos os dados indicam inibição não competitiva ou mista. Nos sistemas celulares foi observado: i) citotoxicidade frente às células eritrocitárias e aos polimorfonucleares, ii) a amostra galato de isopropila demonstrou menor citotoxicidade frente aos eritrócitos, iii) a amostra galato de butila foi a que apresentou relativamente menor citotoxicidade chegando a 80% de morte celular, e iv) as outras amostras chegavam a 100% de morte celular na mesma concentração. Pelos dados obtidos, concluiu-se que o ácido gálico e seus derivados são potentes antioxidantes e inibidores das peroxidases HRP (Horseradish peroxidase) e MPO (mieloperoxidase), e com alta citotoxidade frente aos sistemas celulares estudados
Phenolic compounds are known to have antioxidant properties that influence the quality of food. Gallic acid and its derivatives have antioxidant, antimicrobial and antimutagenic properties. In this study the action of these compounds on oxidative processes in vitro and ex vivo which: i) Models in the suppression of chemical forms of oxidizing ABTS•+, DPPH• HOCl, H2O2, O2 •-, NO• and taurine chloramine ii) Enzymatic systems HRP and MPO iii) cellular systems with polymorphonuclear cells and erythrocytes against AAPH and HOCl. Tests involving the oxidative species in the presence of gallic acid and its derivatives showed good inhibition, and the triacetate samples of gallic acid were found to be the best of the tested samples. Regarding enzyme systems data indicate non-competitive or mixed inhibition. In cellular systems were observed: i) cytotoxicity against cells to erythrocyte and polymorphonuclear ii) the sample with erythrocytes the isopropyl gallate showed less cytotoxicity compared to the others samples, iii) the sample of butyl gallate showed the relatively lower cytotoxicity reaching 80% of cell death, and iv) the other specimens came to 100% cell death at the same concentration. From the data obtained showed that the gallic acid and its derivatives are potent antioxidants and inhibitors of peroxidases HRP (horseradish peroxidase) and MPO (myeloperoxidase), and high cytotoxicity against the cell systems studied
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Barbosa, Vanessa de Frias. "Caracterização do perfil da ação do ácido gálico e seus derivados sobre processos oxidativos in vitro e ex vivo /." Araraquara : [s.n.], 2010. http://hdl.handle.net/11449/87981.
Повний текст джерелаАнотація:
Resumo: Compostos fenólicos são conhecidos por possuírem propriedades antioxidantes que influenciam na qualidade dos alimentos. O ácido gálico e seus derivados apresentam propriedades antioxidantes, antimicrobiana e propriedades antimutagênicas. Neste trabalho avaliamos a ação desses compostos sobre processos oxidativos in vitro e ex vivo sendo: i) Modelos químicos na supressão de formas oxidantes de ABTS +, DPPH HOCl, H2O2, O2 -, NO e taurina cloramina; ii) Sistemas enzimáticos como HRP e MPO; iii) Sistemas celulares com polimorfonucleares e eritrócitos frente a AAPH e HOCl. Os ensaios envolvendo as espécies oxidativas na presença de ácido gálico e derivados mostraram uma boa inibição, sendo que a amostras triacetato de ácido gálico mostrou ser a melhor das amostras testadas. Em relação aos sistemas enzimáticos os dados indicam inibição não competitiva ou mista. Nos sistemas celulares foi observado: i) citotoxicidade frente às células eritrocitárias e aos polimorfonucleares, ii) a amostra galato de isopropila demonstrou menor citotoxicidade frente aos eritrócitos, iii) a amostra galato de butila foi a que apresentou relativamente menor citotoxicidade chegando a 80% de morte celular, e iv) as outras amostras chegavam a 100% de morte celular na mesma concentração. Pelos dados obtidos, concluiu-se que o ácido gálico e seus derivados são potentes antioxidantes e inibidores das peroxidases HRP (Horseradish peroxidase) e MPO (mieloperoxidase), e com alta citotoxidade frente aos sistemas celulares estudadosAbstract: Phenolic compounds are known to have antioxidant properties that influence the quality of food. Gallic acid and its derivatives have antioxidant, antimicrobial and antimutagenic properties. In this study the action of these compounds on oxidative processes in vitro and ex vivo which: i) Models in the suppression of chemical forms of oxidizing ABTS•+, DPPH• HOCl, H2O2, O2 •-, NO• and taurine chloramine ii) Enzymatic systems HRP and MPO iii) cellular systems with polymorphonuclear cells and erythrocytes against AAPH and HOCl. Tests involving the oxidative species in the presence of gallic acid and its derivatives showed good inhibition, and the triacetate samples of gallic acid were found to be the best of the tested samples. Regarding enzyme systems data indicate non-competitive or mixed inhibition. In cellular systems were observed: i) cytotoxicity against cells to erythrocyte and polymorphonuclear ii) the sample with erythrocytes the isopropyl gallate showed less cytotoxicity compared to the others samples, iii) the sample of butyl gallate showed the relatively lower cytotoxicity reaching 80% of cell death, and iv) the other specimens came to 100% cell death at the same concentration. From the data obtained showed that the gallic acid and its derivatives are potent antioxidants and inhibitors of peroxidases HRP (horseradish peroxidase) and MPO (myeloperoxidase), and high cytotoxicity against the cell systems studied
Orientador: Olga Maria Mascarenhas Farias Oliveira
Coorientador: Iguatemy Lourenço Brunetti
Banca: Maria José Queiroz de Freitas Alves
Banca: José Carlos Rebuglio Vellosa
Mestre
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Badan, Tomás Antônio Costa. "Projeto de uma tecnologia de fabricação de MESFETs para circuitos integrados em GaAs." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261416.
Повний текст джерелаАнотація:
Orientador: Furio DamianiDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica
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Resumo: Este trabalho é uma contribuição ao desenvolvimento de transistores MESFETs em arseneto de gálio para uso em Circuito Integrados (CIs) de alta velocidade. Inicialmente são descritos processos de fabricação em arseneto de gálio: a obtenção de substratos monocristalinos, a implantação iônica, o recozimento para ativar os dopantes, a realização de contatos. É desenvolvido o modelo matemático que rege sua física do estado sólido, usado pelo programa PRISM. Os resultados obtidos com o programa de simulação de processos SUPREM-IV.GS foram fornecidos ao programa PRISM, que efetua uma análise do comportamento elétrico do MESFETs fabricados; esse procedimento foi realizado de forma iterativa, até serem obtidos parâmetros apropriados para a fabricação de transistores de enriquecimento e de depleção para CIs digitais
Abstract: This work is a contribution to the development of GaAs MESFETs transistors to use in high speed integrated circuits (CIs). Initially are described the GaAs manufacture processes: monocrystal substrate fabrication, ion implantation, thermal annealing to activate the implanted impurities, contact fabrications. It is developed the mathematical mo deI of the solid state physics used by the PRISM programo The results were first obtained with the SUPREM-IV.GS program that simulate the process and then passed to PRISM program that analyses the electrical behavior of MESFET devices; that procedure was done in an iterative way until the achievement of suitable parameters to the manufacture of both depletions and enhancement transistors to use in digital CIs
Mestrado
Mestre em Engenharia Elétrica
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Gallus, Dominik [Verfasser]. "Gaussian processes for classification of spatial data in context of an early warning chain / Dominik Gallus." 2010. http://d-nb.info/1009590073/34.
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Mosquera, Restrepo Jaime. "Control estadístico de variables cuantitativas mediante inspección por atributos apoyada en el diseño de galgas con dimensiones óptimas." Doctoral thesis, 2019. http://hdl.handle.net/10251/133059.
Повний текст джерелаАнотація:
[ES] En el Control Estadístico de Procesos, los gráficos de control por variables suelen ser la herramienta empleada para vigilar el comportamiento de una característica cuantitativa de calidad. Para implementar estos gráficos se requiere de la medición periódica de una muestra de unidades del proceso. En algunos procesos, obtener una medición exacta de la variable de calidad es una tarea compleja, que demanda gran cantidad de recursos (costos, tiempo, mano de obra), o que deteriora/destruye la pieza inspeccionada. En estos casos, una alternativa más ágil y económica consiste en realizar el control basado en la verificación de piezas con una galga. Dado que la verificación con una galga suele ser tan sencilla como la verificación de un atributo, el control basado en galgas es mucho más ágil y económico que el control basado en mediciones exactas.
En la literatura del Control Estadístico de Procesos se encuentran múltiples propuestas de esquemas de control basado en inspección por galgas. En esta Tesis doctoral realizamos una detallada revisión de estas propuestas y proponemos un nuevo esquema de control basado en galgas, cuyo desempeño estadístico es siempre igual o mejor que el de cualquiera de las propuestas previas. Este esquema es diseñado para el control de la media/varianza de una variable de calidad con distribución normal y posteriormente es extendido para el control de estos parámetros en distribuciones asimétricas (log-normal, skew-normal y Weibull).
Adicionalmente, sobre el nuevo esquema de control basado en galgas, se realiza una adaptación de las estrategias de tamaño de muestra adaptativo, Doble muestreo y Tamaño de Muestra Variable, e incorporamos memoria al estadístico de control a través de un esquema de pesos exponencialmente ponderados EWMA. Como resultado se obtienen nuevos esquemas de control, cuya operación e implementación es tan sencilla como la de los gráficos de control por atributos, pero con mejor desempeño estadístico que los gráficos de control por variables.[CAT] En el Control Estadístic de Processos, els gràfics de control per variables solen ser la ferramenta empleada per a vigilar el comportament d'una característica quantitativa de qualitat. Per a implementar estos gràfics es requerix del mesurament periòdic d'una mostra d'unitats del procés. En alguns processos, obtindre un mesurament exacte de la variable de qualitat és una tasca complexa, que demanda gran quantitat de recursos (costos, temps, mà d'obra) , o que deteriora/ destruïx la peça inspeccionada. En estos casos, una alternativa més àgil i econòmica consistix a realitzar el control basat en la verificació de peces amb una llebrera. Atés que la verificació amb una llebrera sol ser tan senzilla com la verificació d'un atribut, el control basat en llebreres és molt més àgil i econòmic que el control basat en mesuraments exactes. En la literatura del Control Estadístic de Processos es troben múltiples propostes d'esquemes de control basat en inspecció per llebreres. En esta Tesi doctoral realitzem una detallada revisió d'estes propostes i proposem un nou esquema de control basat en llebreres, l'exercici estadístic del qual és sempre igual o millor que el de qualsevol de les propostes prèvies. Este esquema és dissenyat per al control de la media/varianza d'una variable de qualitat amb distribució normal i posteriorment és estés per al control d'estos paràmetres en distribucions asimètriques (log-normal, skew-normal i Weibull). Addicionalment, sobre el nou esquema de control basat en llebreres, es realitza una adaptació de les estratègies de grandària de mostra adaptatiu, Doble mostratge i Grandària de Mostra Variable, i incorporem memòria a l'estadístic de control a través d'un esquema de pesos exponencialment ponderats EWMA. Com resultat s'obtenen nous esquemes de control, l'operació i implementació és tan senzilla com la dels gràfics de control per atributs, però amb millor exercici estadístic que els gràfics de control per variables.
[EN] In Statistical Process Control, control charts by variables are usually the tool used to monitor a quantitative quality characteristic. To implement these charts, periodic measurement of a sample of process units is required. In some processes, obtaining an accurate measurement of the quality variable is a complex task, which demands a large amount of resources (costs, time, labor), or that deteriorates / destroys the inspected unit. In these cases, a more agile and economical alternative is to perform the control based on the verificatión of units with a gauge. Since the verificatión with a gauge is usually as simple as checking an attribute, the control based on gauges is much more agile and economical than the control based on exact measurements. Several proposals of control schemes based on inspectión by gauges are found in the Statistical Process Control literature. In this PhD thesis we review these proposals and propose a new control scheme based on gauges, whose statistical performance is always the same or better than that of any of the previous proposals. This scheme is designed for the control of the means / variance of a quality variable with normal distributión and is subsequently extended for the control of these parameters in asymmetric distributións (log-normal, skew-normal and Weibull). In additión, on the new gauge-based control scheme, an adaptatión of the adaptive sample size: double sampling and variable sample size strategies, is carried out, and incorporates memory to the control statistic through an exponentially weighted EWMA weights scheme. As a result, new control schemes were obtained, whose operatión and implementatión is as simple as that of the control charts by attributes, but with a best statistical performance than the control charts by variables.
Inicialmente quiero agradecer a la Universidad del Valle, Cali – Colombia, por el soporte económico que me brindaron para garantizar mi estancia en la ciudad de Valencia y para el desarrollo de esta tesis doctoral.
Mosquera Restrepo, J. (2019). Control estadístico de variables cuantitativas mediante inspección por atributos apoyada en el diseño de galgas con dimensiones óptimas [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/133059
TESIS
Книги з теми "Galois processor"
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Ayyar, R. V. Vaidyanatha. The Present Is a Foreign Country (Global Trends). Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199474943.003.0009.
Повний текст джерелаАнотація:
This chapter offers an overview of the global trends in education systems driven by the five inter-connected forces: democratization of the society, rise of private education, globalization, advent of new information technologies, and knowledge economy. This overview is offered so that there could be a more nuanced understanding of the gales of creative destruction which spectacularly altered the Indian education landscape. It outlines the consequences of the transition of a higher education system transits from an elite system with low levels of enrolment to a mass system with very high levels of enrolment: extraordinary diversification of the purpose of higher education, financing, student body, and content and process of higher education. It outlines the salient features of internationalization and globalization of education, of General Agreement on Trade in Services (GATS), the private revolution in higher education and the quality assurance mechanisms. The overview focuses on the developments in some countries like the United States, United Kingdom, France, and China.
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Testa, Mario. Saber en salud: La construcción del conocimiento. De la UNLa - Universidad Nacional de Lanús, 2022. http://dx.doi.org/10.18294/9789878926032.
Повний текст джерелаАнотація:
El texto logra atraparnos en el juego intenso, comprometido e implicante de examinar y tejer relaciones entre categorías analíticas y las distintas lógicas que se encuentran en las perspectivas epistemológicas generales y de las ciencias sociales en particular. Su existencia en el espesor determinante de la historia y las historias, con la importancia de las ideologías como productoras de sujetos y generadoras de conciencias y de intereses, con las posibilidades de transformaciones o estereotipias, tanto al nivel del conocimiento y acciones compartidas como en los niveles más subjetivos de la constitución de las personas. El texto también conduce a reflexionar sobre las articulaciones de comportamientos sociales, ciencia, política y vida cotidiana, proponiendo estrategias para pensarlas y, congruentemente, para proponer y realizar acciones, tanto como para evaluar las presentes y las anteriores: en el espacio social, en el campo de la salud, en las características de las prácticas médicas y en el papel que juegan las distintas maneras de enseñanza en todos esos procesos. Fragmento del Prólogo de Vicente Galli
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Hazzard, Oli. Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198822011.003.0001.
Повний текст джерелаАнотація:
This is an account of John Ashbery’s career in which, as he puts it in ‘Grand Galop’, the ‘minor eras / Take on an importance all out of proportion to the story’.1 The ‘minority’ of any part of any story is, of course, a relational status always open to dispute, but in the available narratives of Ashbery’s life and work his personal and textual engagements with contemporaneous English poets have, up to this point, occupied a certifiably marginal position. This is unsurprising. When compared with the most ambitious, compelling narratives of Ashbery’s place within literary history—portraying him as a late Romantic, a Francophile avant-gardist, or a coterie poet of the New York School, among many other possible identities—concentrating on his English connections might seem a limited perspective from which to view his work. Yet because the idea of ‘minority’ was a central preoccupation for Ashbery throughout his career, it is apt to discover that many of the important, enduring points of interest which occupied his poetry and poetics—the relation of the margin to the centre, the ways in which art represents the historical moment of its composition, the processes by which canons are formed, the methods through which aesthetic ‘strength’ and ‘weakness’ are determined, the connection between national identities and traditions and individual poetic expression—are foregrounded and illuminated when raised within such a ‘minor’ context. The limitation of scope in this study—which attends to Ashbery’s relationships with W. H. Auden, F. T. Prince, Lee Harwood and Mark Ford—allows for a localized, concentrated sample of his writing to be attended to, and obliquely to substantiate or complicate our understanding of more general themes or practices in his oeuvre. Ashbery’s body of work is broad and varied enough to justify its fragmentation into specific sub-categories, which in combination will allow for a larger, more comprehensive and more complex picture of this inexhaustible poet to be presented. This book hopes to make three central contributions to that broader picture: to demonstrate the significance of Anglo-American contexts to Ashbery’s work, to illustrate his importance ...
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Stamenkoviç, Marko, ed. Resistance. 2nd ed. punctum books, 2021. http://dx.doi.org/10.53288/0384.1.00.
Повний текст джерелаАнотація:
esistance features a selection of overtly non-conformist positions in the contemporary visual art scene of Albania vis-à-vis the most recent social, political, and economic turmoils in the Western Balkans – a region marked by the dark side of political governances that have remained “democratic” in their outward appearance (especially toward the European Union), while dramatically leaning toward autocratic regimes in the eyes of their own citizens. Regardless of their citizens’ primary interests, and despite some positive signals surfacing in the international media, almost every attempt to establish lasting conditions for democratic governance in the Western Balkans has been shrouded in the veil of profit-driven political scandals, personal greed for more and more power over the people’s rights, and the extinction of public property in pursuit of social elite’s corporate and private interests. Additionally, and more specifically related to Tirana, artists and citizens have, over the years, been involved in various types of revolt, expressing their disagreements with the ongoing destruction of public property in the name of “modernization and development”: a movement led by local political powers through financially and strategically motivated processes of architectural cannibalism – not only at the expense of erasing Albanian cultural heritage or long-term residents’ habitats, but also at the expense of taking human lives under the pretext of “urbanization.” The most obvious instance of this economy of destruction was the complex of buildings linked to the National Theater of Albania in downtown Tirana that has served as a symbolic and material place of citizens’ resistance: for more than two years, together with local artists, they have been opposing the government’s plans to demolish the old complex in order to build a new one – until this finally happened in Spring 2020, in the midst of the ongoing COVID19 pandemic. Rooted in the atmosphere of the National Theater Protests in Tirana, RESISTANCE was conceived in Summer 2019 by ZETA Center for Contemporary Art as the International Artists-in-Residence Program, in cooperation with three partner organizations from Kosovo, Serbia and North Macedonia (Stacion – Center for Contemporary Art in Prishtina; Ilija & Mangelos Foundation in Novi Sad; and Faculty of Things That Can’t Be Learned in Bitola) and supported by Swiss Cultural Fund in Albania, a project of the Swiss Agency for Development and Cooperation. Gradually, the project expanded into an exhibition (Heterotopias of Resistance, curated by Blerta Hoçia and featuring works by Lori Lako, Fatlum Doçi, Edona Kryeziu, Nina Galiç, Darko Vukiç, Nikola Slavevski, and Natasha Nedelkova) and a series of interviews and panel discussions (with contributions by Lindita Komani, Edmond Budina, Ervin Goci, Ergin Zaloshnja, Pleurad Xhafa, Gentian Shkurti, Stefano Romano, Luçjan Bedeni, HAVEIT, Leonard Qylafi, Jonida Gashi, and Fatmira Nikolli). The results of both have been collected and presented in the format of a publication that, besides serving as an indispensable reading material concerning visual arts and politics in contemporary Albania, especially to those abroad, functions by itself as a form of resistance against contagious cultural policies in weak post-socialist “democracies” in Southeastern Europe.
Частини книг з теми "Galois processor"
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Narayanan, Vinu K., Rishad A. Shafik, Jimson Mathew, and Dhiraj K. Pradhan. "Fault Tolerant High Performance Galois Field Arithmetic Processor." In Eco-friendly Computing and Communication Systems, 269–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32112-2_33.
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Lakshmi, C., and P. Jesu Jayarin. "Design of Flexible Multiplier Using Wallace Tree Structure for ECC Processor Over Galosis Field." In Emerging Trends in Computing and Expert Technology, 763–70. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32150-5_77.
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Chitez, Mădălina, Roxana Rogobete, and Alexandru Foitoş. "Digital Humanities as an Incentive for Digitalisation Strategies in Eastern European HEIs: A Case Study of Romania." In European Higher Education Area: Challenges for a New Decade, 545–64. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56316-5_34.
Повний текст джерелаАнотація:
Abstract The modern university has the potential to turn into a nexus of digital embracement and innovation, thus responding to both strategic planning for higher education and societal demands. Priorities in digitalisation strategies (White Paper ‘Bologna Digital 2020’, Rampelt et al. 2019) for higher education institutions (HEIs) are actively promoted, and their implementation is in progress throughout Europe. However, the embedding of the digitalisation reform at the institutional level is considerably uneven from one country to another, with Eastern European HEIs lagging behind (Conrads et al. 2017). The aim of this position paper is to present and discuss the case of digital humanities (DH) as an incentive for digitalisation strategies at Eastern European universities. We briefly contextualize the configuration of DH initiatives in the region by using the results of the Digital Humanities Survey and propose the case study of Romania, where we investigate the implementation status of such initiatives. We further exemplify the process of developing a DH centre and evaluate the institutional impact of the recently created research centre CODHUS, from the West University of Timişoara, Romania, the second DH centre in the country. The strength of the new centre relies on its capacity to converge cross-disciplinary expertise with digital technologies. The centre intends to develop computational solutions and digital tools for research, course development and assessment. CODHUS is also a digital-competence training centre for teachers and students, with the purpose of bridging the gap between teaching strategies and goals, on one hand, and students’ digital experiences and expectations from HEI, on the other. The study offers a multiple-lens perspective on the integration of digital-intensive research initiatives, such as DH, into the Bologna process. We argue that DH centres can support further HE developments which contribute to building “new learning ecologies” (Galvis 2018) and creating an “education area with digital solutions” (Rampelt 2019).
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Naidenova, Xenia. "Constructing Galois Lattices as a Commonsense Reasoning Process." In Diagnostic Test Approaches to Machine Learning and Commonsense Reasoning Systems, 34–70. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-1900-5.ch003.
Повний текст джерелаАнотація:
The concept of good classification test is used in this chapter as a dual element of the interconnected algebraic lattices. The operations of lattice generation take their interpretations in human mental acts. Inferring the chains of dual lattice elements ordered by the inclusion relation lies in the foundation of generating good classification tests. The concept of an inductive transition from one element of a chain to its nearest element in the lattice is determined. The special reasoning rules for realizing inductive transitions are formed. The concepts of admissible and essential values (objects) are introduced. Searching for admissible and essential values (objects) as a part of reasoning is based on the inductive diagnostic rules. Next, the chapter discusses the relations between constructing good tests and the Formal Concept Analysis (FCA). The decomposition of inferring good classification tests is advanced into two kinds of subtasks that are in accordance with human mental acts. This decomposition allows modeling incremental inductive-deductive inferences. The problems of creating an integrative inductive-deductive model of commonsense reasoning are discussed in the last section of this chapter.
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Prud’Homme, Alex. "The Case Against Hydrofracking." In Hydrofracking. Oxford University Press, 2013. http://dx.doi.org/10.1093/wentk/9780199311262.003.0009.
Повний текст джерелаАнотація:
Hydrofracturing is not a gentle process. Sucking oil and gas from dense shale formations involves drilling, explosions, toxic chemicals, and millions of gallons of water pumped at crushing pressures. Drillers maintain that these processes are well understood and tightly controlled and take place far below...
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Krstic, Milos, Xin Fan, Eckhard Grass, Luca Benini, M. R. Kakoee, Christoph Heer, Birgit Sanders, et al. "Silicon Validation of GALS Methods and Architectures in a State-of-the-Art CMOS Process." In Advances in Systems Analysis, Software Engineering, and High Performance Computing, 420–47. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6034-2.ch017.
Повний текст джерелаАнотація:
The GALS methodology has been discussed for many years, but only a few relevant implementations in silicon have been done. This chapter describes the implementation and test of the Moonrake Chip – a complex GALS demonstrator implemented in 40 nm CMOS technology. Two novel types of GALS interface circuits are validated: point-to-point pausible clocking GALS interfaces and GALS NoC interconnects. Point-to-point GALS interfaces are integrated within a complex OFDM baseband transmitter block, and for NoC switches special test structures are defined. This chapter discloses the full structure of the respective interfaces, the complete GALS system, as well as the design flow utilized to implement them on the chip. Moreover, the full set of measurement results are presented, including area, power, and EMI results. Significant benefits and robustness of our applied GALS methodology are shown. Finally, some outlook and vision of the future role of GALS are outlined.
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Dillon, Mark C. "Due Process and Procedure: Vigilante Sentences." In The Montana Vigilantes 1863–1870: Gold, Guns, and Gallows, 316–37. Utah State University Press, 2013. http://dx.doi.org/10.7330/9780874219203.c015.
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Bertoni, Guido, Jorge Guajardo, and Christof Paar. "Architectures for Advanced Cryptographic Systems." In Information Security and Ethics, 771–817. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-937-3.ch056.
Повний текст джерелаАнотація:
In the last 20-30 years, the world of modern cryptography has been largely dominated by traditional systems such as the Data Encryption Standard and the RSA algorithm. Such systems have provided a secure way for storing and transmitting information and they are nowadays incorporated in many network protocols and secure storage media. More recently, the increasing advance of crypto-analytical techniques and tools and the emergence of new applications, for example wireless communications and mobile computing, have stimulated the research and development of innovative cryptographic algorithms. These newer systems require a more detailed and sophisticated mathematical formalization and operations, which are not normally supported by general-purpose processors. For example, many basic operations required to implement recently proposed cryptographic algorithms, such as the Advanced Encryption Standard or Elliptic Curve Cryptosystems, are based on arithmetic in finite fields (or Galois fields). This chapter is, thus, intended to give an overview of such developments in modern cryptography. In particular, it aims at giving the reader a comprehensive understanding of innovative cryptosystems, their basic structure, alternative existing hardware architectures to implement them, and their performance requirements and characterizations. Emphasis will be made throughout on two important cases: the Advanced Encryption Standard and Elliptic Curve Cryptosystems.
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Bertoni, Guido, Jorge Guajardo, and Christof Paar. "Architectures for Advanced Cryptographic Systems." In Information Security Policies and Actions in Modern Integrated Systems, 1–63. IGI Global, 2004. http://dx.doi.org/10.4018/978-1-59140-186-5.ch001.
Повний текст джерелаАнотація:
In the last 20-30 years, the world of modern cryptography has been largely dominated by traditional systems such as the Data Encryption Standard and the RSA algorithm. Such systems have provided a secure way for storing and transmitting information and they are nowadays incorporated in many network protocols and secure storage media. More recently, the increasing advance of crypto-analytical techniques and tools and the emergence of new applications, for example wireless communications and mobile computing, have stimulated the research and development of innovative cryptographic algorithms. These newer systems require a more detailed and sophisticated mathematical formalization and operations, which are not normally supported by general-purpose processors. For example, many basic operations required to implement recently proposed cryptographic algorithms, such as the Advanced Encryption Standard or Elliptic Curve Cryptosystems, are based on arithmetic in finite fields (or Galois fields). This chapter is, thus, intended to give an overview of such developments in modern cryptography. In particular, it aims at giving the reader a comprehensive understanding of innovative cryptosystems, their basic structure, alternative existing hardware architectures to implement them, and their performance requirements and characterizations. Emphasis will be made throughout on two important cases: the Advanced Encryption Standard and Elliptic Curve Cryptosystems.
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Dillon, Mark C. "Due Process and Procedure: Vigilante Arrests and Trials." In The Montana Vigilantes 1863–1870: Gold, Guns, and Gallows, 300–315. Utah State University Press, 2013. http://dx.doi.org/10.7330/9780874219203.c014.
Повний текст джерелаТези доповідей конференцій з теми "Galois processor"
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Greenan, Kevin M., Ethan L. Miller, and Thomas J. E. Schwarz S.J. "Optimizing Galois Field Arithmetic for Diverse Processor Architectures and Applications." In 2008 IEEE International Symposium on Modeling, Analysis & Simulation of Computers & Telecommunication Systems (MASCOTS). IEEE, 2008. http://dx.doi.org/10.1109/mascot.2008.4770564.
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El-Rayis, Ahmed O., Xin Zhao, Tughrul Arslan, and Ahmet T. Erdogan. "Dynamically programmable Reed Solomon processor with embedded Galois Field multiplier." In 2008 International Conference on Field-Programmable Technology (FPT). IEEE, 2008. http://dx.doi.org/10.1109/fpt.2008.4762395.
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Chen, Yajing, Shengshuo Lu, Cheng Fu, David Blaauw, Ronald Dreslinski, Trevor Mudge, and Hun-Seok Kim. "A Programmable Galois Field Processor for the Internet of Things." In ISCA '17: The 44th Annual International Symposium on Computer Architecture. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3079856.3080227.
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Homma, N., K. Saito, and T. Aoki. "Formal Design of Multiple-Valued Arithmetic Algorithms over Galois Fields and Its Application to Cryptographic Processor." In 2012 IEEE 42nd International Symposium on Multiple-Valued Logic (ISMVL). IEEE, 2012. http://dx.doi.org/10.1109/ismvl.2012.24.
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Lim, Wei-Ming, and M. Benaissa. "Design space exploration of a hardware-software co-designed GF(2m) galois field processor for forward error correction and cryptography." In the 1st IEEE/ACM/IFIP international conference. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/944645.944659.
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Falih, Noureddine, Brahim Jabir, and Loubna Rabhi. "Structural Analysis using Galois Lattice Concept for Strategic Business Processes Alignment." In 2021 7th International Conference on Optimization and Applications (ICOA). IEEE, 2021. http://dx.doi.org/10.1109/icoa51614.2021.9442655.
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Nadeem, Muhammad, Morteza Biglari-Abhari, and Zoran Salcic. "GALS-JOP: A Java Embedded Processor for GALS Reactive Programs." In 2011 IEEE 9th International Conference on Dependable, Autonomic and Secure Computing (DASC). IEEE, 2011. http://dx.doi.org/10.1109/dasc.2011.67.
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KEROPYAN, ARAS, and ANNA MARIA GIL-LAFUENTE. "A PERSONNEL SELECTION MODEL WITHIN THE STRATEGIC HUMAN RESOURCES MANAGEMENT PROCESS USING THE GALOIS GROUP THEORY." In Proceedings of the MS'10 International Conference. WORLD SCIENTIFIC, 2010. http://dx.doi.org/10.1142/9789814324441_0042.
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Zhu, YongKang, and David H. Albonesi. "Synergistic Temperature and Energy Management in GALS Processor Architectures." In ISLPED'06 2006 International Symposium on Low Power Electronics and Design. IEEE, 2006. http://dx.doi.org/10.1109/lpe.2006.4271807.
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Zhu, YongKang, and David H. Albonesi. "Synergistic temperature and energy management in GALS processor architectures." In the 2006 international symposium. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1165573.1165587.
Повний текст джерелаЗвіти організацій з теми "Galois processor"
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Phillips, N. M. Process Waste Assessment for inorganic solid waste and empty containers <30 gallons. Office of Scientific and Technical Information (OSTI), December 1993. http://dx.doi.org/10.2172/10141837.
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Waisner, Scott, Victor Medina, Charles Ellison, Jose Mattei-Sosa, John Brasher, Jacob Lalley, and Christopher Griggs. Design, construction, and testing of the PFAS Effluent Treatment System (PETS), a mobile ion exchange–based system for the treatment of per-, poly-fluorinated alkyl substances (PFAS) contaminated water. Engineer Research and Development Center (U.S.), March 2022. http://dx.doi.org/10.21079/11681/43823.
Повний текст джерелаАнотація:
Poly-,Per-fluorinated alkyl substances (PFAS) are versatile chemicals that were incorporated in a wide range of products. One of their most important use was in aqueous film-forming foams for fighting liquid fuel fires. PFAS compounds have recently been identified as potential environmental contaminants. In the United States there are hundreds of potential military sites with PFAS contamination. The ERDC designed and constructed a mobile treatment system to address small sites (250,000 gallons or less) and as a platform to field test new adsorptive media. The PFAS Effluent Treatment System (PETS) has cartridge filters to remove sediments and a granular activated carbon (GAC) media filter to remove organic compounds that might compete with PFAS in the ion exchange process, although it may also remove PFAS too. The last process is an ion exchange resin specifically designed to remove PFAS to a target level of 70 ng/L or less (equivalent to the US Environmental Protection Agency (EPA) Drinking Water Health Advisory). The system was tested at Hurlburt Field, a US Air Force facility in Florida and at Naval Support Activity (NSA) Mid-South in Millington, TN.
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Parro, Francisco, Oscar Valencia Arana, and Joaquín Zentner. Gender Budgeting: Lecciones para los países de América Central y República Dominicana. Inter-American Development Bank, March 2021. http://dx.doi.org/10.18235/0003106.
Повний текст джерелаАнотація:
La desigualdad de género es una realidad en la mayoría de las regiones del mundo, particularmente en los países en desarrollo (Banco Mundial, 2018). A su vez, la evidencia empírica nos muestra que el cierre de brechas de género contribuye significativamente al crecimiento económico (Dollar y Gatti, 1999; Klasen, 2002; Barro y Sala-i-Martin, 2003; Abu-Ghaida y Klasen, 2004; Klasen y Lamanna, 2009; Thévenon et al., 2012; entre otros). Existen varios factores que impactan las desigualdades de género. Por ejemplo, las transformaciones estructurales de los países promueven sectores en los cuales mujeres y hombres exhiben distintas ventajas comparativas (Galor y Weil, 1996; Ngai y Petrongolo, 2017). Factores culturales desencadenan discriminaciones arbitrarias en el mercado laboral (Bertrand y Duflo, 2016). Algunas regulaciones laborales promueven el empleo femenino a través de diferentes canales (Albagli y Rau, 2018). También existen diversos ejemplos de cómo elementos de la política fiscal recaen asimétricamente entre mujeres y hombres (Greenspun y Lustig, 2015). Esto último, motiva el interés por analizar la forma en que distintos aspectos del proceso presupuestario de los países impactan las brechas de género, originando así el enfoque de gender budgeting. Este capítulo describe y discute dicho enfoque y extrae lecciones de política para los países CID.
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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs, and Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, October 1994. http://dx.doi.org/10.32747/1994.7570549.bard.
Повний текст джерелаАнотація:
The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the project, to develop and apply the two complementary methods for quality control of agricultural commodities. In Israel: An improved firmness testing system was developed and tested with tropical fruits. The new system included an instrumented fruit-bed of three flexible piezoelectric sensors and miniature electromagnetic hammers, which served as fruit support and low-energy excitation device, respectively. Resonant frequencies were detected for determination of firmness index. Two new acoustic parameters were developed for evaluation of fruit firmness and maturity: a dumping-ratio and a centeroid of the frequency response. Experiments were performed with avocado and mango fruits. The internal damping ratio, which may indicate fruit ripeness, increased monotonically with time, while resonant frequencies and firmness indices decreased with time. Fruit samples were tested daily by destructive penetration test. A fairy high correlation was found in tropical fruits between the penetration force and the new acoustic parameters; a lower correlation was found between this parameter and the conventional firmness index. Improved table-top firmness testing units, Firmalon, with data-logging system and on-line data analysis capacity have been built. The new device was used for the full-scale experiments in the next two years, ahead of the original program and BARD timetable. Close cooperation was initiated with local industry for development of both off-line and on-line sorting and quality control of more agricultural commodities. Firmalon units were produced and operated in major packaging houses in Israel, Belgium and Washington State, on mango and avocado, apples, pears, tomatoes, melons and some other fruits, to gain field experience with the new method. The accumulated experimental data from all these activities is still analyzed, to improve firmness sorting criteria and shelf-life predicting curves for the different fruits. The test program in commercial CA storage facilities in Washington State included seven apple varieties: Fuji, Braeburn, Gala, Granny Smith, Jonagold, Red Delicious, Golden Delicious, and D'Anjou pear variety. FI master-curves could be developed for the Braeburn, Gala, Granny Smith and Jonagold apples. These fruits showed a steady ripening process during the test period. Yet, more work should be conducted to reduce scattering of the data and to determine the confidence limits of the method. Nearly constant FI in Red Delicious and the fluctuations of FI in the Fuji apples should be re-examined. Three sets of experiment were performed with Flandria tomatoes. Despite the complex structure of the tomatoes, the acoustic method could be used for firmness evaluation and to follow the ripening evolution with time. Close agreement was achieved between the auction expert evaluation and that of the nondestructive acoustic test, where firmness index of 4.0 and more indicated grade-A tomatoes. More work is performed to refine the sorting algorithm and to develop a general ripening scale for automatic grading of tomatoes for the fresh fruit market. Galia melons were tested in Israel, in simulated export conditions. It was concluded that the Firmalon is capable of detecting the ripening of melons nondestructively, and sorted out the defective fruits from the export shipment. The cooperation with local industry resulted in development of automatic on-line prototype of the acoustic sensor, that may be incorporated with the export quality control system for melons. More interesting is the development of the remote firmness sensing method for sealed CA cool-rooms, where most of the full-year fruit yield in stored for off-season consumption. Hundreds of ripening monitor systems have been installed in major fruit storage facilities, and being evaluated now by the consumers. If successful, the new method may cause a major change in long-term fruit storage technology. More uses of the acoustic test method have been considered, for monitoring fruit maturity and harvest time, testing fruit samples or each individual fruit when entering the storage facilities, packaging house and auction, and in the supermarket. This approach may result in a full line of equipment for nondestructive quality control of fruits and vegetables, from the orchard or the greenhouse, through the entire sorting, grading and storage process, up to the consumer table. The developed technology offers a tool to determine the maturity of the fruits nondestructively by monitoring their acoustic response to mechanical impulse on the tree. A special device was built and preliminary tested in mango fruit. More development is needed to develop a portable, hand operated sensing method for this purpose. In North Carolina: Analysis method based on an Auto-Regressive (AR) model was developed for detecting the first resonance of fruit from their response to mechanical impulse. The algorithm included a routine that detects the first resonant frequency from as many sensors as possible. Experiments on Red Delicious apples were performed and their firmness was determined. The AR method allowed the detection of the first resonance. The method could be fast enough to be utilized in a real time sorting machine. Yet, further study is needed to look for improvement of the search algorithm of the methods. An impact contact-pressure measurement system and Neural Network (NN) identification method were developed to investigate the relationships between surface pressure distributions on selected fruits and their respective internal textural qualities. A piezoelectric dot-matrix pressure transducer was developed for the purpose of acquiring time-sampled pressure profiles during impact. The acquired data was transferred into a personal computer and accurate visualization of animated data were presented. Preliminary test with 10 apples has been performed. Measurement were made by the contact-pressure transducer in two different positions. Complementary measurements were made on the same apples by using the Firmalon and Magness Taylor (MT) testers. Three-layer neural network was designed. 2/3 of the contact-pressure data were used as training input data and corresponding MT data as training target data. The remaining data were used as NN checking data. Six samples randomly chosen from the ten measured samples and their corresponding Firmalon values were used as the NN training and target data, respectively. The remaining four samples' data were input to the NN. The NN results consistent with the Firmness Tester values. So, if more training data would be obtained, the output should be more accurate. In addition, the Firmness Tester values do not consistent with MT firmness tester values. The NN method developed in this study appears to be a useful tool to emulate the MT Firmness test results without destroying the apple samples. To get more accurate estimation of MT firmness a much larger training data set is required. When the larger sensitive area of the pressure sensor being developed in this project becomes available, the entire contact 'shape' will provide additional information and the neural network results would be more accurate. It has been shown that the impact information can be utilized in the determination of internal quality factors of fruit. Until now,