Academic literature on the topic 'QC'

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Journal articles on the topic "QC"

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Strohm, Thomas. "QC aus Anwendersicht." Digitale Welt 5, no. 2 (2021): 52–53. http://dx.doi.org/10.1007/s42354-021-0337-5.

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Sheppard, Terry L. "QC for ChIP." Nature Chemical Biology 11, no. 7 (2015): 449. http://dx.doi.org/10.1038/nchembio.1853.

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Millett, Lord. "Richard Sykes QC." Law and Financial Markets Review 1, no. 6 (2007): 535. http://dx.doi.org/10.1080/17521440.2007.11427930.

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Parvin, Curtis A. "Quality-control (QC) performance measures and the QC planning process." Clinical Chemistry 43, no. 4 (1997): 602–7. http://dx.doi.org/10.1093/clinchem/43.4.602.

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Abstract Numerous outcome measures can be used to characterize and compare the performance of alternative quality-control (QC) strategies. The performance measure traditionally used in the QC planning process is the probability of rejecting an analytical run when a critical out-of-control error condition exists. Another performance measure that naturally fits within the total allowable error paradigm is the probability that a reported test result contains an analytical error that exceeds the total allowable error specification. In general, the out-of-control error conditions associated with the greatest chance of reporting an unacceptable test result are unrelated to the traditionally defined “critical” error conditions. If the probability of reporting an unacceptable test result is used as the primary performance measure, worst-case QC performance can be determined irrespective of the magnitude of any out-of-control error condition that may exist, thus eliminating the need for the concept of a “critical” out-of-control error.
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van Rossum, Huub H., and Daan van den Broek. "Design and implementation of quality control plans that integrate moving average and internal quality control: incorporating the best of both worlds." Clinical Chemistry and Laboratory Medicine (CCLM) 57, no. 9 (2019): 1329–38. http://dx.doi.org/10.1515/cclm-2019-0027.

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Abstract Background New moving average quality control (MA QC) optimization methods have been developed and are available for laboratories. Having these methods will require a strategy to integrate MA QC and routine internal QC. Methods MA QC was considered only when the performance of the internal QC was limited. A flowchart was applied to determine, per test, whether MA QC should be considered. Next, MA QC was examined using the MA Generator (www.huvaros.com), and optimized MA QC procedures and corresponding MA validation charts were obtained. When a relevant systematic error was detectable within an average daily run, the MA QC was added to the QC plan. For further implementation of MA QC for continuous QC, MA QC management software was configured based on earlier proposed requirements. Also, protocols for the MA QC alarm work-up were designed to allow the detection of temporary assay failure based on previously described experiences. Results Based on the flowchart, 10 chemistry, two immunochemistry and six hematological tests were considered for MA QC. After obtaining optimal MA QC settings and the corresponding MA validation charts, the MA QC of albumin, bicarbonate, calcium, chloride, creatinine, glucose, magnesium, potassium, sodium, total protein, hematocrit, hemoglobin, MCH, MCHC, MCV and platelets were added to the QC plans. Conclusions The presented method allows the design and implementation of QC plans integrating MA QC for continuous QC when internal QC has limited performance.
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Meftah, B., and A. Souahi. "Cebyšev inequalities for co-ordinated \(QC\)-convex and \((s,QC)\)-convex." Engineering and Applied Science Letters 4, no. 1 (2021): 14–20. http://dx.doi.org/10.30538/psrp-easl2021.0057.

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In this paper, we establish some new Cebyšev type inequalities for functions whose modulus of the mixed derivatives are co-ordinated quasi-convex and \(\alpha \)-quasi-convex and \(s\)-quasi-convex functions.
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Bishop, Christopher J. "A Set Containing Recfiable Arcs QC-locally But Not QC-globally." Pure and Applied Mathematics Quarterly 7, no. 1 (2011): 121–38. http://dx.doi.org/10.4310/pamq.2011.v7.n1.a7.

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Parvin, Curtis A., and Sanford Robbins. "Evaluation of the Performance of Randomized versus Fixed Time Schedules for Quality Control Procedures." Clinical Chemistry 53, no. 4 (2007): 575–80. http://dx.doi.org/10.1373/clinchem.2006.083311.

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Abstract Background: Although minimum regulatory standards exist for determining QC testing frequency, decisions regarding when and how to run QC samples are not standardized. Most QC testing strategies test control samples at fixed time intervals, often placing the samples in the same position on an instrument during subsequent QC events and leaving large gaps of time when control samples are never run, yet patient samples are being tested. Methods: Mathematical derivations and computer simulation were used to determine the expected waiting time between an out-of-control condition and the next scheduled QC test for various QC testing strategies that use fixed or random intervals between QC tests. Results: Scheduling QC tests at fixed intervals yields an average time between the occurrence of an out-of-control error condition and the next scheduled QC test that is equal to half of the fixed time interval. This performance was the best among the QC scheduling strategies investigated. Near-optimal performance, however, was achieved by randomly selecting time intervals between QC events centered on the desired expected interval length, a method that provides variation in QC testing times throughout the day. Conclusions: If the goal is to vary QC testing times throughout the day while maintaining the shortest expected length of time between error conditions and the next scheduled QC test, then a near-optimal QC scheduling strategy combines randomly selected time intervals centered on the desired length of time between QC events with fixed time intervals.
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Mao, Xuxin, та Luoshan Xu. "ν-QC-continuous posets". International Journal of Algebra 15, № 4 (2021): 249–57. http://dx.doi.org/10.12988/ija.2021.91574.

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Knight, Pamela. "Requirements for Biopharmaceutical QC." Nature Biotechnology 6, no. 12 (1988): 1373–74. http://dx.doi.org/10.1038/nbt1288-1373.

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Dissertations / Theses on the topic "QC"

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Roy, Ann-Julie. "Reconstitution de l'état trophique du lac Nairne, Charlevoix, QC." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29000/29000.pdf.

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Depuis le début des années 2000, la détérioration de la qualité de l’eau de nombreux lacs du sud québécois, résultant souvent en des floraisons de cyanobactéries, inquiète de plus en plus les résidents et les municipalités affectées. Ces préoccupations ont mené à la mise en place d’une étude paléolimnologique du lac Nairne, ayant pour but principal de reconstituer l’évolution trophique du lac. La municipalité de Saint-Aimé-des-lacs et l’Association pour la Protection de l’Environnement du Lac Nairne (APELN), en collaboration avec le partenariat CIMA+/ULaval, ont joint leurs efforts pour fournir aux décideurs les outils nécessaires à une meilleure compréhension de l’évolution de la qualité de l’eau du lac et pour l’élaboration d’un plan de gestion adapté au lac. Cette étude retrace l’évolution trophique du lac Nairne (Charlevoix, Qc) selon une approche paléolimnologique à l’aide des diatomées fossiles, d’analyses géochimiques et de pigments photosynthétiques fossiles. Les résultats obtenus démontrent une eutrophisation progressive du plan d’eau depuis 780 ans BC et une accélération de la détérioration de la qualité de l’eau suite à l’exploitation des terres du bassin versant. Cependant, une amélioration de la qualité de l’eau est également notée suite à la diminution des activités d’exploitation dans le bassin versant et à la recolonisation végétale vers 1950. Ces résultats mettent en évidence les conséquences profondes de l’établissement humain sur l’intégrité des écosystèmes aquatiques et la qualité de l’eau, mais aussi qu’une modification des habitudes de vie peut avoir des incidences positives sur la qualité de l’eau.<br>Residents and municipalities surrounding many southern Quebec lakes have expressed concerns since the early 2000s following massive cyanobacterial blooms that were followed by rapid deterioration of the lake’s water quality. As a consequence, several research programs have been initiated in order to provide those municipalities with an array of tools for a better management of these water bodies. In this context, the municipality of Saint-Aimé-des-Lacs, the Association pour la Protection de l’Environnement du Lac Nairne (APELN) and a partnership CIMA+/ULaval, have joined forces to conduct a paleolimnological research project at Lake Nairne. This concerted study aims at describing the past and recent evolution of Lake Nairne’s trophic state, and also to provide policy makers with tools for the development of management plans specifically designed for the lake’s watershed. As part of this concerted study, this master’s thesis describes Lake Nairne’s historical trophic state fluctuations. Using a paleolimnological approach, fossil diatoms, geochemical analysis and photosynthetic fossil pigments have shown progressive eutrophication of the lake basin since 780 years BC and rapid deterioration of the lake’s water quality following the beginning of agricultural and industrial activities in the lake’s watershed. However, improvements in water quality were also noted since the recent slowdown of industrial operations and vegetation recolonization since 1950. These results highlight the profound impact that human settlement and activities can have on the ecological stability of Lake Nairne, but also the capacity of such aquatic ecosystems to partly recover following substantial modification of the lake’s watersheds.
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Zhang, Jiake. "Evaluation of mechanistic-based compaction measurements for earthwork QC/QA." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476360.

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Paiva, Thales Areco Bandiera. "Melhorando o ataque de reação contra o QC-MDPC McEliece." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-07012018-212020/.

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O QC-MDPC McEliece foi considerado um dos mais promissores esquemas criptográficos de chave pública que oferecem segurança contra ataques por computadores quânticos. O tamanho das chaves públicas do QC-MDPC McEliece é competitivo com o das chaves do RSA, e o esquema tem uma redução de segurança aparentemente forte. Por três anos, o esquema não sofreu ataques críticos, até que na Asiacrypt de 2016 Guo, Johansson, e Stankovski mostraram um ataque de reação contra o QC-MDPC McEliece que explora um aspecto não considerado em sua redução de segurança: a probabilidade de o algoritmo de decriptação falhar é menor quando a chave secreta e o vetor usado para encriptar a mensagem compartilham certas propriedades, chamadas de espectros. Dessa forma, um atacante pode, ao detectar falhas de decriptação, obter informação sobre o espectro, que será usada para reconstruir a chave secreta. Guo et al. apresentaram um algoritmo para a reconstrução da chave a partir do espectro recuperado, para o qual é possível apontar três problemas. O primeiro é que seu algoritmo não é eficiente quando o espectro da chave não foi recuperado quase completamente, o que resulta em o atacante ter que enviar um grande número de testes de decriptação à portadora da chave secreta. O segundo problema é que o desempenho de seu algoritmo não escala bem para níveis de segurança mais altos. O terceiro e último problema é que, por ser baseado numa busca em profundidade, seu algoritmo não pode ser paralelizado trivialmente. Para aumentar a eficiência do ataque, dois novos algoritmos de reconstrução são propostos neste trabalho. Estes algoritmos são mais eficientes, usam menos informação sobre a chave secreta, e podem ser paralelizados trivialmente. O primeiro algoritmo é probabilístico e tem complexidade assintótica ligeiramente melhor do que a do original. Entretanto, o desempenho do algoritmo probabilístico piora rapidamente, embora mais lentamente do que o algoritmo de Guo et al., conforme a quantidade de informação sobre o espectro diminui. O segundo algoritmo explora uma relação linear entre os blocos da chave secreta. Este é mais eficiente, tanto assintoticamente quanto na prática, que os dois outros algoritmos, e é eficiente mesmo com 50% menos informação sobre o espectro do que o necessário para o algoritmo original. Isso permite que o atacante encontre a chave secreta fazendo apenas em torno de 20% do número de testes necessários pelo algoritmo de Guo\'s et al., considerando-se o nível de segurança de 80 bits. O desempenho de ambos os algoritmos são analisados e comparados com o do algoritmo original, e as análises são feitas tanto para a complexidade teórica quanto para o desempenho na prática, considerando a implementação dos algoritmos em linguagem C.<br>The QC-MDPC McEliece scheme was considered one of the most promising public key encryption schemes for efficient post-quantum secure encryption. As a variant of the McEliece scheme, it is based on the syndrome decoding problem, an NP-hard problem from Coding Theory. The key sizes are competitive with the ones of the widely used RSA cryptosystem, and it came with an apparently strong security reduction. For three years, the scheme has not suffered major threats, until the end of 2016, when Guo, Johansson, and Stankovski presented at Asiacrypt a reaction attack on the QC-MDPC that exploits one aspect that was not considered in the security reduction: the probability of a decoding failure to occur is lower when the secret key and the error used for encryption share certain properties, which they called spectrums. By detecting decoding failures, the attacker can obtain information on the spectrum of the secret key and then use this information to reconstruct the key. Guo et al. presented an algorithm for key reconstruction for which we can point three weaknesses. The first one is that it cannot deal efficiently with partial information on the spectrum of the secret key, resulting in the attacker having to send a great number of decoding trials. The second one is that it does not scale well for higher security levels. The third one is that the algorithm, which is based on a depth-first search, cannot be trivially parallelized. To improve the efficiency of the attack, we propose two different key reconstruction algorithms that are more efficient, use less information on the secret key, and can be trivially parallelized. The first algorithm, which is a simple probabilistic extension of Guo\'s et al. algorithm, is more efficient and runs increasingly faster, for higher security levels, than the original one. However, for security levels higher than 80 bits, the probabilistic algorithm cannot run efficiently without too much information on the spectrum of the secret key, even though it needs less information than the original algorithm. The second algorithm is based on a linear relation between the blocks of the secret key. It can run efficiently with around 50% less information than needed by Guo\'s et al. key reconstruction algorithm. This makes it possible for an attacker to recover the secret key sending approximately 20% of the of the number of decoding trials needed by Guo\'s et al. algorithm, for the security level of 80 bits. The performance of each presented algorithm is analyzed and compared with that of the original one. The analysis are made theoretically, considering a probabilistic analysis of the algorithms, and in practice, considering the corresponding implementations in C language.
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Martins, Homero de Oliveira. "QC-MDPC McEliece : uma implementação otimizada de uma nova variante Mceliece." reponame:Repositório Institucional da UnB, 2014. http://repositorio.unb.br/handle/10482/17327.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2014.<br>Submitted by Larissa Stefane Vieira Rodrigues (larissarodrigues@bce.unb.br) on 2014-12-11T17:14:00Z No. of bitstreams: 1 2014_HomeroDeOliveiraMartins.pdf: 543126 bytes, checksum: 1f049b4a95888db179d9ae47dd753632 (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2014-12-11T18:04:53Z (GMT) No. of bitstreams: 1 2014_HomeroDeOliveiraMartins.pdf: 543126 bytes, checksum: 1f049b4a95888db179d9ae47dd753632 (MD5)<br>Made available in DSpace on 2014-12-11T18:04:53Z (GMT). No. of bitstreams: 1 2014_HomeroDeOliveiraMartins.pdf: 543126 bytes, checksum: 1f049b4a95888db179d9ae47dd753632 (MD5)<br>Esta dissertação apresenta a implementação de uma versão otimizada de uma variante McEliece. O criptossistema de McEliece é um exemplo de criptografia baseada em códigos que representa uma alternativa aos criptossistemas atuais mais populares e comerciais, pois até o presente momento ele é imune à computação quântica. Possui algoritmos rápidos e simples, porém uma desvantagem sua é o tamanho das chaves com as quais trabalha. Ao substituir os códigos Goppa da proposta McEliece original por códigos LDPC e MDPC é possível conseguir chaves muito menores. Ao aplicar técnicas de programação tais como a paralelização de operações e ao mesmo tempo utilizar decodificadores eficientes de códigos LDPC é possível alcançar bons resultados e um desempenho otimizado do criptossistema baseado em códigos provando que ele deve de fato ser levado em consideração como um forte candidato substituto para o RSA e o DSA enquanto os computadores quânticos surgem para facilmente computar logaritmos discretos e fatorar grandes números inteiros. __________________________________________________________________________________ ABSTRACT<br>This paper presents the implementation of an optimized version of a McEliece variant. The McEliece cryptosystem is an example of code-based cryptography which is an alternative to the most popular and commercial cryptosystems nowadays as it is believed to be immune to quantum computing. It has simple and fast algorithms, but its drawback is the size of the keys it has to deal with. By substituting the Goppa codes of the McEliece original proposal by LDPC and MDPC codes it’s possible to achieve much smaller keys. And by applying programming technics such as parallelization of operations and also utilizing efficient decoders of LDPC codes it’s possible to achieve really good results and optimal performances of the code-based cryptosystem showing that it really has to be considered as a strong substitute to RSA and DSA as quantum computers emerge to easily compute discrete logarithms and factor large integers.
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Calvar, Ariane. "Design, engineering and processing of QC Lasers for high frequency modulation." Paris 7, 2013. http://www.theses.fr/2013PA077267.

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Les lasers à cascade quantique (QCLs) sont des dispositifs unipolaires dans lesquels la transition radiative se fait entre niveaux confinés de la bande de conduction de puits quantiques semi-conducteurs. Cette thèse porte sur l'étude de ces sources dans le moyen infrarouge. Deux axes de recherche principaux ont été abordés au cours de ces travaux de thèse. Le premier porte sur la conception, la fabrication et la caractérisation de QCLs à ruban crûs par MOCVD. Grâce à un procédé de fabrication optimisé, nous démontrons des courants de seuil à l'état de l'art ainsi qu'une amélioration des performances thermiques en continu. Par ailleurs, nous avons mené une étude systématique basée sur la caractérisation des échantillons après croissance afin de calculer la structure de bande réelle et la relier aux performances laser mesurées. Cela nous a permis d'optimiser les conditions de croissance MOCVD afin d'obtenir de meilleures performances en réduisant les pertes issues de la région active. La seconde partie de ce travail de thèse porte sur la fabrication d'un dispositif intégré pour la modulation directe en amplitude des lasers à cascade quantique dans le moyen infrarouge. Nous présentons un guide de type micro-ruban pour les micro-ondes intégré-avec la région active du QCL dans lequel les performances laser sont préservées tout en obtenant une réponse en fréquence plate jusqu'à 15 GHz à 77 K. En injectant un signal RF externe près de la fréquence d'aller-retour d'un photon dans la cavité à 13. 7 GHz, nous démontrons que nous pouvons verrouiller cette fréquence à celle du signal RF injecté sur une gamme de fréquence de l'ordre du MHz<br>Quantum cascade lasers (QCLs) are unipolar semiconductor lasers based on intersubband transitions that cover a large portion of the mid and far-infrared electromagnetic spectrum. This work focuses on the study of sources emitting in the mid-infrared range. Two main research lines have been followed in this work. The first one involves the design, fabrication and characterization of high performance ridge QC lasers grown by MOCVD. State-of-the-art threshold current density values are reported around 7. 5 and 9 pm, along with improved thermal performances in CW operation thanks to an optimized fabrication process. To get these results, an optimization work has also been carried out on the MOCVD growth conditions based on systematic post-growth characterization of the epitaxial samples to calculate the real band structure and relate it to the measured laser performances. Improved laser performances could be obtained by reducing the losses originating from the active region thanks to a better control of the growth. The other focus of this work is the fabrication of a mid-infrared QC laser monolithically integrated within a microwave microstrip line for high frequency modulation. By merging microwave and semiconductor laser technologies, we have demonstrated a flat frequency response up to 15 GHz for a device operating at 77 K and emitting at 9 pm. Laser performances are preserved and comparable to state-of-the-art devices. Direct modulation of the QCL embedded into microstrip line at the laser round trip frequency at 13. 7 GHz is investigated and injection-locking of the laser modes to an external RF synthesizer is demonstrated over the MHz range
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Von, Leipzig Mirko. "Code generation and simulation of an automatic, flexible QC-LDPC hardware decoder." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96835.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Iterative error correcting codes such as LDPC codes have become prominent in modern forward error correction systems. A particular subclass of LDPC codes known as quasicyclic LDPC codes has been incorporated in numerous high speed wireless communication and video broadcasting standards. These standards feature multiple codes with varying codeword lengths and code rates and require a high throughput. Flexible hardware that is capable of decoding multiple quasi-cyclic LDPC codes is therefore desirable. This thesis investigates binary quasi-cyclic LDPC codes and designs a generic, flexible VHDL decoder. The decoder is further enhanced to automatically select the most likely decoder based on the initial a posterior probability of the parity-check equation syndromes. A software system is developed that generates hardware code for such a decoder based on a small user specification. The system is extended to provide performance simulations for this generated decoder.<br>AFRIKAANSE OPSOMMING: Iteratiewe foutkorreksiekodes soos LDPC-kodes word wyd gebruik in moderne voorwaartse foutkorreksiestelsels. ’n Subklas van LDPC-kodes, bekend as kwasisikliese LDPC-kodes, word in verskeie hoëspoed-kommunikasie- en video-uitsaaistelselstandaarde gebruik. Hierdie standaarde inkorporeer verskeie kodes van wisselende lengtes en kodetempos, en vereis hoë deurset. Buigsame apparatuur, wat die vermoë het om ’n verskeidenheid kwasisikliese LDPC-kodes te dekodeer, is gevolglik van belang. Hierdie tesis ondersoek binêre kwasisikliese LDPC-kodes, en ontwerp ’n generiese, buigsame VHDL-dekodeerder. Die dekodeerder word verder verbeter om outomaties die mees waarskynlike dekodeerder te selekteer, gebaseer op die aanvanklike a posteriori-waarskynlikheid van die pariteitstoetsvergelykings se sindrome. ’n Programmatuurstelsel word ontwikkel wat die fermware-kode vir so ’n dekodeerder genereer, gebaseer op ’n beknopte gebruikerspesifikasie. Die stelsel word uitgebrei om werksverrigting te simuleer vir die gegenereerde dekodeerder.
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Bélanger, Julie. "Analyse de stabilité des pentes rocheuses de la mine Troilus, Chibougamau, Qc. /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2005. http://theses.uqac.ca.

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Vasseur, Valentin. "Post-quantum cryptography : a study of the decoding of QC-MDPC codes." Electronic Thesis or Diss., Université Paris Cité, 2021. http://www.theses.fr/2021UNIP5202.

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La cryptographie post-quantique vise à sécuriser les échanges contre un adversaire disposant d'un ordinateur quantique. L'une des approches envisagées pour permettre un chiffrement à clé publique post-quantique repose sur des problèmes difficiles en théorie des codes. Le mécanisme d'encapsulation de clé BIKE, soumis au processus de standardisation post-quantiques du NIST, utilise des codes QC-MDPC dont la quasi-cyclicité permet une représentation compacte de la clé. Cependant, leurs algorithmes de décodage ont une probabilité d'échec (DFR) non nulle, ce qui peut poser un problème de sécurité comme l'ont démontré Guo, Johansson et Stankovski. Ce travail se concentre donc sur l'implémentation et la sécurité de BIKE du point de vue du décodeur. Premièrement, nous concevons de nouveaux algorithmes qui réduisent drastiquement le DFR. Ces algorithmes introduisent des caractéristiques des décodeurs à décision douce dans des décodeurs à décision dure, apportant ainsi les performances des premiers et préservant la simplicité des seconds. Ensuite, nous développons des modèles probabilistes pour prédire le DFR dans des zones hors de portée des simulations. Le premier modèle prend en compte la régularité du code, il est très précis mais ne peut analyser qu'une itération d'un décodeur parallèle. Le second modèle se fonde sur une hypothèse markovienne du comportement d'un décodeur séquentiel complet. Enfin, nous déduisons une méthode d'extrapolation du DFR pour laquelle nous établissons des intervalles de confiance. Nous évaluons ensuite l'adéquation de cette extrapolation avec les caractéristiques structurelles du code qui peuvent affecter le processus de décodage avec des clés faibles ou des planchers d'erreurs<br>Post-quantum cryptography aims at securing exchanges against an adversary with a quantum computer. One approach considered to achieve post-quantum public key encryption relies on hard problems in coding theory. The key encapsulation mechanism BIKE, submitted to the NIST post-quantum standardization process, uses QC-MDPC codes whose quasi-cyclicity allows for a compact key representation. However, their decoding algorithms have a non-zero probability of failure (DFR) and this can be a security concern as demonstrated by Guo, Johansson and Stankovski. This work therefore focuses on the implementation and security of BIKE from the decoder's perspective. First, we design new algorithms that drastically reduce the DFR. These algorithms introduce features of soft-decision decoders into hard-decision decoders, thus bringing the performance of the former and preserving the simplicity of the latter. Second, we develop probabilistic models to predict the DFR in areas beyond the reach of simulations. The first model takes into account the regularity of the code, it is very accurate but can only analyze one iteration of a parallel decoder. The second model is based on a Markovian assumption of the behavior of a complete sequential decoder. Finally, we derive a DFR extrapolation method for which we establish confidence intervals. We then evaluate the adequacy of this extrapolation with the structural characteristics of the code that can affect the decoding process with weak keys or error floors
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Liu, Yan. "Innovative Non-destructive Testing Technologies for QA/QC of Fresh and Early Stage Concrete." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1301514801.

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Cope, Natalie J. "Thermochronology and geochronology of the Otter Lake region, QC, Central Metasedimentary Belt, Grenville Province." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1333295679.

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Books on the topic "QC"

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Karatsu, Hajime. Successful QC circles. PHP Institute, 1990.

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Karatsu, Hajime. Successful QC circles. PHP Institute, 1990.

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Renmei, Nihon Kagaku Gijutsu. Fundamentals of QC Circles. 3rd ed. JUSE Press, Ltd., 2008.

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Baldi, Marco. QC-LDPC Code-Based Cryptography. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02556-8.

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J, Edwards M., and American Type Culture Collection, eds. ATCC QC and reference strains. American Type Culture Collection, 1997.

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Cembrowski, George S. Laboratory quality management: QC [and] QA. ASCP Press, 1989.

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Tobin, William J. From QC to SPC: A workbook. WJT Associates, 1991.

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McCown, Mick. Systematic analytical QC for process GC. Knovel, 2011.

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Institute, SAS, ed. SAS/QC software: SQC Menu System. SAS Institute, 1991.

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Institute, SAS, ed. SAS/QC software examples: Version 6. SAS Institute, 1989.

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Book chapters on the topic "QC"

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Gooch, Jan W. "QC." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9666.

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Gasarch, William I., and Georgia A. Martin. "Q Versus QC." In Bounded Queries in Recursion Theory. Birkhäuser Boston, 1999. http://dx.doi.org/10.1007/978-1-4612-0635-4_7.

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O’Brien, James J. "QC Field Testing." In Construction Inspection Handbook. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6017-3_11.

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Yaeger, Theodore E., Theodore E. Yaeger, and James H. Brashears. "Quality Control (QC)." In Encyclopedia of Radiation Oncology. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-540-85516-3_7001.

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Chen, Xiao Hong, and Mate Tolnay. "QC Assay Development." In Antibody-Drug Conjugates. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119060727.ch6.

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O’Brien, James J. "QC Field Testing." In Construction Inspection Handbook. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4757-1191-2_7.

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Syed Asif, Erfan, and Shahid Bader Usmani. "QA/QC Release." In Basics of Pharmaceutical Manufacturing and Quality Operations. CRC Press, 2024. http://dx.doi.org/10.1201/9781003366393-25.

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Riduttori, Bofiglioli. "Der QC-Gesichtspunkt." In Handbuch der Getriebemotoren. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60398-3_29.

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Hussain, Shahid, Yuba Neupane, Wen-Li Wang, Naseem Ibrahim, Saif Ur Rehman Khan, and Asif Kareem. "Empirical Investigation of Quantum Computing on Solving Complex Problems." In Agile Processes in Software Engineering and Extreme Programming – Workshops. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-48550-3_22.

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AbstractContext: The rules of Quantum Mechanics have been exploited through Quantum Computing (QC) to solve specific problems and process information in expeditious ways as compared to Conventional Computing (CC) such as factoring integers. Problem: With the alluring computation capability of QC, it is still important to assess the implications and limitations of QC in solving a variety of computationally demanding problems. Method: In this regard, an empirical study was conducted to assess the efficacy of QC in terms of solving certain complex problems by keeping a tradeoff between the execution time and problem size. An analysis was performed based on the widely used Shor’s algorithms and the efficacy of QC as compared to CC was reported. Results: The outcomes show that QC has the potential to exponentially speed up the identification of a solution to certain polynomial problems that are intractable for CC. However, further research is needed to fully understand the potential and limitations of QC for Non-Polynomial (NP) complete problems.
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Palmer, Giles Anthony. "Qc in the Clouds." In Textbook of Assisted Reproductive Techniques, 6th ed. CRC Press, 2023. http://dx.doi.org/10.1201/9781003268598-4.

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Conference papers on the topic "QC"

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Hansel, William H. "QC for Overcoating." In SSPC 2012 Greencoat. SSPC, 2012. https://doi.org/10.5006/s2012-00018.

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Fraebel, Troy, and Jerrith Hodskins. "Qa'ing the QC from a Distance." In Coatings+ 2020. SSPC, 2020. https://doi.org/10.5006/s2020-00017.

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Abstract When it was time for a major fertilizer distribution facility in the Midwest to have its conveyor structure repainted, the owner started contemplating full-time independent third-party inspection. After reviewing the contractor's schedule and the size of the crew, it became apparent that this approach would interfere with the contractor's operations and be cost prohibitive for the owner. What to do? Since the contract required the contractor to perform quality control (QC) inspections, the owner decided to retain a quality assurance (QA) firm to monitor the contractor's QC activities and reports, and make periodic visits to confirm the quality of the work and the efficacy of the contractor's QC plan. In this paper, the owner, contractor's project manager, and the QA consultant review how this was accomplished from QC inspector training, pre-construction meeting, data-sharing, coordination to final inspection. As always safety was the first concern on this project, but in addition to access and working at heights, other challenges included chloride contamination, steel replacement, conveyor operation, working over water and railroad tracks, and of course rain. With good communication, owners, contractors, QA consultants, and paint manufacturers can achieve a successful quality repainting project even at a distance.
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Kaelin, Alison B. "Quality Control and Quality Assurance: Defining the Roles and Responsibilities of the Contractor’S QC and the Owner’S QA." In Paint and Coatings Expo (PACE) 2005. SSPC, 2005. https://doi.org/10.5006/s2005-00025.

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Abstract With the success of the SSPC painting contractor certification programs (PCCP) and increasing Owner requirements for both quality control (QC) by the contractor and quality assurance (QA) by third party inspectors, there is more confusion than ever over which types of inspections, and to what level of detail, should be performed by whom. This paper reviews and discusses the SSPC PCCP criterion applicable to QC and QA, specifications and other industry standards that address QC and QA, and provides an approach to the appropriate division of hold point inspections and documentation responsibilities of QC and QA to achieve the maximum benefit of the quality process.
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Li, Nan, and Yunling Yang. "An FPGA-Based QC-LDPC Decoder Design." In 2024 9th International Conference on Intelligent Computing and Signal Processing (ICSP). IEEE, 2024. http://dx.doi.org/10.1109/icsp62122.2024.10743319.

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Gupta, Manish, Rajesh Kumar Singh, L. Suvonova, Zaid Alsalami, Payal Dhiman, and V. Dinesh Babu. "QC-LDPC Standards for Optimized 5G Architecture." In 2024 International Conference on Communication, Computing and Energy Efficient Technologies (I3CEET). IEEE, 2024. https://doi.org/10.1109/i3ceet61722.2024.10994168.

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Lakshmanan, Laks V. S., Jian Pei, and Yan Zhao. "QC-trees." In the 2003 ACM SIGMOD international conference on. ACM Press, 2003. http://dx.doi.org/10.1145/872757.872768.

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Ingerov, Andrey, Alexey Khaliulin, Eugeny Godin, et al. "PERSEUS ODV QC software." In Fourth International Conference on Remote Sensing and Geoinformation of the Environment, edited by Kyriacos Themistocleous, Diofantos G. Hadjimitsis, Silas Michaelides, and Giorgos Papadavid. SPIE, 2016. http://dx.doi.org/10.1117/12.2241647.

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Coleou, T., J. P. Coulon, D. Carotti, P. Dépré, G. Robinson, and E. Hudgens. "AVO QC During Processing." In 75th EAGE Conference and Exhibition incorporating SPE EUROPEC 2013. EAGE Publications BV, 2013. http://dx.doi.org/10.3997/2214-4609.20130875.

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"Technical session QC: Quantum qomputing." In 2008 International Conference on Computer Engineering & Systems. IEEE, 2008. http://dx.doi.org/10.1109/icces.2008.4772986.

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BALL, AUSTIN. "DETECTOR CONSTRUCTION, QC AND COMMISSIONING." In Proceedings of the 42nd Workshop of the INFN ELOISATRON Project. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702951_0002.

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Reports on the topic "QC"

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Mills, Jeffrey D. IL QC QSPR - Preliminary Results. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada422511.

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Pfeil, Benjamin. SOCAT Quality Control (QC) procedures. EuroSea, 2022. http://dx.doi.org/10.3289/eurosea_d4.7.

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The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with annual updates. SOCAT aims to provide data with the highest possible quality for carbon data – consistent quality control (QC) is essential in achieving this primary goal of SOCAT. Currently there are various steps of quality control, and within this task of EuroSea we aimed to develop an operational implementation of QC as a showcase for data within SOCAT from the European Research Infrastructure Integrated Carbon Observing System. The aim within EuroSea is to increase the Technology Readiness Level (TRL) from 5 (Technology validated in relevant environment) to 7 (system prototype demonstration in operational environment) for relevant ICOS data for direct submission to SOCAT. This was achieved by creating automated quality control into the ICOS state-of-art-software QuinCe, a web-based tool for processing and quality control of data from in situ sensors and underway instruments that is used for first and second level quality control for operational ICOS stations. One important aspect of SOCAT is the assessment of data quality, to ensure that all published data is fit for purpose and manual eyes-on QC is currently essential to lower uncertainties. Currently, this assessment consists of evaluating the metadata of each dataset to ensure that the correct Standard Operational Procedures (SOPs) have been followed during data collection, that the system setup is correct, instruments are calibrated and in addition examining data to ensure they are of good quality. SOCAT consists of three steps of QC: 1.) QC while data is being ingested; 2.) Eyes-on QC by regional experts and 3.) QC for the entire dataset defining the uncertainty based upon the submitted metadata and within this task it has been shown that certain parts of this QC process can be automated while other levels bear challenges if a higher level of TRL is aimed for. (EuroSea Deliverable D4.7)
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Davila, Xabier. GLODAP Quality Control (QC) procedures. EuroSea, 2023. http://dx.doi.org/10.3289/eurosea_d4.12.

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The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort that provides high-quality, quality-controlled ocean biogeochemical bottle data with annual-updates, playing a crucial role in advancing our understanding of the Earth's oceans and their complex biogeochemical processes. This deliverable covers the GLODAP annual updates under the EuroSea funding, as well as the automatization of the quality control process of the data. Under the EuroSea funding, GLODAP has received three updates (GLODAPv2.2020, GLODAPv2.2021 and GLODAPv2.2022) with a total number of 245 cruises added, and in addition, a new version release (GLODAPv3) is planned. These updates were possible as a result of the large degree of automatization of the quality control process that ensures the accuracy of the data. The core of the quality control process is the crossover analysis that is currently performed via the 2nd QC Matlab toolbox from Lauvset and Tanhua (2015). However, following Eurosea’s vision of a user-focused, truly interdisciplinary, and responsive European ocean observing and forecasting system, this deliverable aims to migrate from the Matlab toolbox to an online web application based on the open-source software Django and Python. This will allow the user to simply upload the data file to be quality controlled and the web application performs the secondary quality control through the deep water crossover analysis just as in Matlab, and offers similar graphics for visualization. Because the crossover analysis is partially automated on this online tool, the users do not need to possess any programming knowledge in order to quality control their data. In addition, this online tool can be part of a fully automated GLODAP quality control process, without need for manual intervention. (EuroSea Deliverable, D4.12)
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Box, Erin, and Cheryl Gleasner. Sample Prep and Initial QC (DNA). Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1973798.

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Tucker, John R. New Graduate Student for Silicon QC Project. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada440645.

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Dixon, K. L. QA/QC Documentation Updates for Software and Data. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1423996.

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McNeil, R. J., and R. G. Garrett. Soil sample preparation, analytical techniques and QA/QC. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/287963.

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Stroz, Mike, Pablo Romero, Marcus Massingham, et al. IT: Data integrity challenges in the QC lab. BioPhorum, 2022. http://dx.doi.org/10.46220/2022it005.

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Meijer, G. J., H. J. Van Kleffens, and B. J. Mijnheer. NCS Report 11: Quality control (QC) of simulators and CT scanners and some basic QC methods for treatment planning systems. NCS, 1997. http://dx.doi.org/10.25030/ncs-011.

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Innis, B. E. QA/QC requirements for physical properties sampling and analysis. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10175023.

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