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Artykuły w czasopismach na temat "Combination sequences"
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Tachikawa, Shin-Ichi, i Gen Marubayashi. "Majority logic combination sequences using m-sequences for rapid acquisition in direct sequence/spread spectrum communication systems". Electronics and Communications in Japan (Part I: Communications) 74, nr 7 (lipiec 1991): 42–56. http://dx.doi.org/10.1002/ecja.4410740705.
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Stadje, Wolfgang. "On two combination rules for {$0$}-{$1$}-sequences". Bulletin of the Belgian Mathematical Society - Simon Stevin 3, nr 3 (1996): 295–99. http://dx.doi.org/10.36045/bbms/1105554387.
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Venkataraman, Ganesh, Zachary Shriver, Rahul Raman i Ram Sasisekharan. "Sequencing Complex Polysaccharides". Science 286, nr 5439 (15.10.1999): 537–42. http://dx.doi.org/10.1126/science.286.5439.537.
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Although rapid sequencing of polynucleotides and polypeptides has become commonplace, it has not been possible to rapidly sequence femto- to picomole amounts of tissue-derived complex polysaccharides. Heparin-like glycosaminoglycans (HLGAGs) were readily sequenced by a combination of matrix-assisted laser desorption ionization mass spectrometry and a notation system for representation of polysaccharide sequences. This will enable identification of sequences that are critical to HLGAG biological activities in anticoagulation, cell growth, and differentiation.
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Kassaei, Gholamreza, i Mohammad Amouzadeh. "The combination of Discourse Markers in Persian". International Review of Pragmatics 12, nr 1 (13.02.2020): 135–63. http://dx.doi.org/10.1163/18773109-01201102.
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Abstract This paper sets out to investigate the ways in which some of the Discourse Markers (DM s) in Persian are used by looking at a corpus of 475 million words. By adopting Fraser’s notion of DM (2009), it will analyse all possible combinations of thirty DMs categorized into three groups: contrastive, elaborative, and inferential. This categorization will be based on the types of semantic relationship they signal between the propositions of the discourse segments preceding and following them. Their deployment in the attested data demonstrates that the ordering of these DM s is by no means arbitrary. The result of our investigation also reveals that Persian contrastive DM s show a strong tendency to combine with the members of their own category, while elaborative DM s tend to combine with inferential DM s. Inferential DM s, too, have a tendency for intra-category combinations; however, such combinations are much less frequent than those of contrastive DM s. Contrastive DM s have the lowest predisposition for combining with inferential DM s. In short, by exploring the frequency of all sequences of DM s under investigation, a hierarchy of DM combinations in Persian will be proposed, which can be argued to predict certain possible configurations of DM sequences in Persian, and such empirical findings will build up some basis for future typological research as well as for the theorization of DM sequences in general.
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Hill, Janet E., Robyn P. Seipp, Martin Betts, Lindsay Hawkins, Andrew G. Van Kessel, William L. Crosby i Sean M. Hemmingsen. "Extensive Profiling of a Complex Microbial Community by High-Throughput Sequencing". Applied and Environmental Microbiology 68, nr 6 (czerwiec 2002): 3055–66. http://dx.doi.org/10.1128/aem.68.6.3055-3066.2002.
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ABSTRACT Complex microbial communities remain poorly characterized despite their ubiquity and importance to human and animal health, agriculture, and industry. Attempts to describe microbial communities by either traditional microbiological methods or molecular methods have been limited in both scale and precision. The availability of genomics technologies offers an unprecedented opportunity to conduct more comprehensive characterizations of microbial communities. Here we describe the application of an established molecular diagnostic method based on the chaperonin-60 sequence, in combination with high-throughput sequencing, to the profiling of a microbial community: the pig intestinal microbial community. Four libraries of cloned cpn60 sequences were generated by two genomic DNA extraction procedures in combination with two PCR protocols. A total of 1,125 cloned cpn60 sequences from the four libraries were sequenced. Among the 1,125 cloned cpn60 sequences, we identified 398 different nucleotide sequences encoding 280 unique peptide sequences. Pairwise comparisons of the 398 unique nucleotide sequences revealed a high degree of sequence diversity within the library. Identification of the likely taxonomic origins of cloned sequences ranged from imprecise, with clones assigned to a taxonomic subclass, to precise, for cloned sequences with 100% DNA sequence identity with a species in our reference database. The compositions of the four libraries were compared and differences related to library construction parameters were observed. Our results indicate that this method is an alternative to 16S rRNA sequence-based studies which can be scaled up for the purpose of performing a potentially comprehensive assessment of a given microbial community or for comparative studies.
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Carbonera Luvizon, Diogo, Hedi Tabia i David Picard. "Learning features combination for human action recognition from skeleton sequences". Pattern Recognition Letters 99 (listopad 2017): 13–20. http://dx.doi.org/10.1016/j.patrec.2017.02.001.
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NILSSON, MARKUS. "RETRIEVING HEART RATE SEQUENCES". International Journal on Artificial Intelligence Tools 15, nr 06 (grudzień 2006): 1091–106. http://dx.doi.org/10.1142/s0218213006003132.
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In this paper, we present a method with a low complexity for analysing short and dynamic biomedical sequences. The method uses the Daubechies D4 wavelet in combination with similarity fitness schemes for retrieval. We also present a more traditional way of retrieving dynamical biomedical sequences based on stretching the sequences in time. The first mentioned method has been shown to outperform Fourier based methods in retrieving biomedical sequences of dynamic lengths, as well as the Haar wavelet.
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Wang, Lei, Deborah Rothemund, Heather Curd i Peter R. Reeves. "Sequence Diversity of the Escherichia coli H7 fliC Genes: Implication for a DNA-Based Typing Scheme for E. coli O157:H7". Journal of Clinical Microbiology 38, nr 5 (2000): 1786–90. http://dx.doi.org/10.1128/jcm.38.5.1786-1790.2000.
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Flagellar (H) antigens are mostly encoded by genes at thefliC locus in E. coli. We have sequenced 11 H7fliC genes from Escherichia coli strains that belong to seven O serotypes. These sequences, together with those of nine other H7 fliC genes (from strains of three different O serotypes) sequenced recently (S. D. Reid, R. K. Selander, and T. S. Whittam, J. Bacteriol. 181:153–160, 1999), include 10 different sequences. The differences between these 10 sequences range from 0.06 to 3.12%. By comparison with other E. coliflagellin genes, we have identified primer length sequences specific for H7 genes in general and others specific for H7 genes of O157 and O55 strains: the specificity was confirmed by PCR testing the type strains for all 53 E. coli H types. We have previously identified genes specific for the E. coli O157 antigen, and use of the combination of O157- and H7-specific primers allows the sensitive and rapid detection of O157:H7 E. coli strains, which cause the majority of hemorrhagic colitis cases.
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Sancetta, Alessio. "RECURSIVE FORECAST COMBINATION FOR DEPENDENT HETEROGENEOUS DATA". Econometric Theory 26, nr 2 (30.09.2009): 598–631. http://dx.doi.org/10.1017/s0266466609100105.
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This paper studies a procedure to combine individual forecasts that achieve theoretical optimal performance. The results apply to a wide variety of loss functions and only require a tail condition on the data sequences. The theoretical results show that the bounds are also valid in the case of time varying combination weights.
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Qiu, Chengshu, Wenjuan Yan, Wangqiu Deng, Bin Song i Taihui Li. "Genetic Diversity Analysis ofHypsizygus marmoreuswith Target Region Amplification Polymorphism". Scientific World Journal 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/619746.
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Hypsizygus marmoreusis an industrialized edible mushroom. In the present paper, the genetic diversity among 20 strains collected from different places of China was evaluated by target region amplification polymorphism (TRAP) analysis; the common fragment of TRAPs was sequenced and analyzed. Six fixed primers were designed based on the analysis ofH. marmoreussequences from GenBank database. The genomic DNA extracted fromH. marmoreuswas amplified with 28 TRAP primer combinations, which generated 287 bands. The average of amplified bands per primer was 10.27 (mean polymorphism is 69.73%). The polymorphism information content (PIC) value for TRAPs ranged from 0.32 to 0.50 (mean PIC value per TRAP primer combination is 0.48), which indicated a medium level of polymorphism among the strains. A total of 36 sequences were obtained from TRAP amplification. Half of these sequences could encode the known or unknown proteins. According to the phylogenetic analysis based on TRAP result, the 20 strains ofH. marmoreuswere classified into two main groups.
Rozprawy doktorskie na temat "Combination sequences"
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Cresp, Gregory. "On combination and interference free window spreading sequences". University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0152.
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Spread spectrum techniques have a number of different applications, including range finding, synchronisation, anti-jamming systems and multiple access communication systems. In each of these applications the properties of the resulting systems depend heavily on the family of spreading sequences employed. As such, the design of spreading sequences is an important area of research. Two areas of spreading sequence design are of particular interest in this work, combination techniques and Interference Free Window (IFW) sequences. Combination techniques allow a new sequence family to be constructed by combining two or more existing families. Such an approach allows some of the desirable properties of the components to be maintained, whilst mitigating the components' disadvantages. In addition, it can facilitate the construction of large families at a greatly reduced computational cost. Combination families are considered through the construction of two new classes of sequences, modified Unified Complex Hadamard Transform (UCHT) sequences, and combination Oppermann sequences, respectively based on UCHT sequences and periodic Oppermann sequences. Numerical optimisation techniques are employed to demonstrate the favourable performance of sequences from these classes compared to conventional families. Second, IFW sequences are considered. In systems where approximate, but not perfect, synchronisation between different users can be maintained, IFW sequences can be employed to greatly reduce both interference between users and interference resulting from multipath spread of each user's signal. Large Area Synchronous (LAS) sequences are a class of sequences which both result from combination techniques and exhibit an IFW. LAS sequences are produced by combining Large Area (LA) sequences and LS sequences. They have been demonstrated to be applicable to multiple access communication systems, particularly through their use in LAS2000, which was proposed for third generation mobile telephony. Work to date has been restricted to only a very small range of examples of these families. In order to examine a wider range of LAS sequences, the construction and resulting properties of LA and LS families are considered. The conditions an LA family must satisfy are codified here, and algorithms which can be used to construct LA families with given parameters are presented. The construction of LS sequences is considered, and relationship between each of the parameters used in this construction and the properties of the final family is examined. Using this expanded understanding of both these sequence families, a far wider range of LAS families, potentially applicable to a wider range of applications, can be considered. Initially, the merits of proposed sequences are considered primarily through their correlation properties. Both maximum and mean squared correlation values are considered, depending on the context. In order to demonstrate their practical applicability, combination Oppermann, modified UCHT and LAS sequences are employed in a simulated communications system, and the resulting bit error rates are examined.
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Brejova, Bronislava. "Evidence Combination in Hidden Markov Models for Gene Prediction". Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/1036.
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This thesis introduces new techniques for finding genes in genomic sequences. Genes are regions of a genome encoding proteins of an organism. Identification of genes in a genome is an important step in the annotation process after a new genome is sequenced. The prediction accuracy of gene finding can be greatly improved by using experimental evidence. This evidence includes homologies between the genome and databases of known proteins, or evolutionary conservation of genomic sequence in different species. We propose a flexible framework to incorporate several different sources of such evidence into a gene finder based on a hidden Markov model. Various sources of evidence are expressed as partial probabilistic statements about the annotation of positions in the sequence, and these are combined with the hidden Markov model to obtain the final gene prediction. The opportunity to use partial statements allows us to handle missing information transparently and to cope with the heterogeneous character of individual sources of evidence. On the other hand, this feature makes the combination step more difficult. We present a new method for combining partial probabilistic statements and prove that it is an extension of existing methods for combining complete probability statements. We evaluate the performance of our system and its individual components on data from the human and fruit fly genomes.
The use of sequence evolutionary conservation as a source of evidence in gene finding requires efficient and sensitive tools for finding similar regions in very long sequences. We present a method for improving the sensitivity of existing tools for this task by careful modeling of sequence properties. In particular, we build a hidden Markov model representing a typical homology between two protein coding regions and then use this model to optimize a component of a heuristic algorithm called a spaced seed. The seeds that we discover significantly improve the accuracy and running time of similarity search in protein coding regions, and are directly applicable to our gene finder.
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Fusel, André Thiago. "O ensino e a aprendizagem da análise combinatória dentro do contexto de telefonia". Universidade Federal de São Carlos, 2013. https://repositorio.ufscar.br/handle/ufscar/5944.
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Previous issue date: 2013-08-17Financiadora de Estudos e Projetos
This present dissertation, structured in the methodology of well-known research as Didactic Engineering, it presents the development of an unpublished class for the teacher on combination analysis in the High School. The objective of this work is to elaborate a didactic material that aids the students in the learning of some concepts of combination analysis in a significant way. The elaborated didactic sequence is inserted in the telephony context and it approaches the current subject on the increment of the 9th digit in the numbers of cellular of the area of the State of São Paulo with code of area 11. The whole sequence was thought so that the student will be the protagonist of its learning, making observations, you conjecture, debating with the colleagues, manipulating materials and solving the problems proposed in the leaves of activities in an autonomous way. The didactic sequence was applied for two groups of 2nd year of the High School in the School Educational Center SESI Bragança Paulista. For they accomplish the activities, the students were divided in groups. All the sheets of activities accomplished by the students and the registrations of observations facts by the teacher during the application of the activities were good as tools to verify the objective plans were reached.
A presente dissertação, estruturada na metodologia de pesquisa conhecida como Engenharia Didática, apresenta o desenvolvimento de uma aula inédita para o professor sobre análise combinatória no Ensino Médio. O objetivo deste trabalho é elaborar um material didático, que auxilie os alunos no aprendizado de alguns conceitos de análise combinatória de forma significativa. A sequência didática elaborada está inserida no contexto de telefonia e aborda o assunto atual sobre o acréscimo do 9º dígito nos números de celulares da região do Estado de São Paulo com código de área 11. Toda a sequência foi pensada de forma que o aluno seja o protagonista de sua aprendizagem, fazendo observações, conjecturas, debatendo com os colegas, manipulando materiais e solucionando os problemas propostos nas folhas de atividades de maneira autônoma. A sequência didática foi aplicada para duas turmas de 2º ano do Ensino Médio na Escola Centro Educacional SESI Bragança Paulista. Para realizarem as atividades, os alunos foram divididos em grupos. Todas as folhas de atividades realizadas pelos alunos e os registros de observações feitos pelo professor durante a aplicação das atividades serviram como ferramentas para verificar se os objetivos traçados foram atingidos.
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Arisaka, Ryuta. "Proof-theoretical observations of BI and BBI base-logic interactions, and development of phased sequence calculus to define logic combinations". Thesis, Teesside University, 2013. http://hdl.handle.net/10149/315552.
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I study sequent calculus of combined logics in this thesis. Two specific logics are looked at-Logic BI that combines intuitionistic logic and multiplicative intuitionistic linear logic and Logic BBI that combines classical logic and multiplicative linear logic. A proof-theoretical study into logical combinations themsel ves then follows. To consolidate intuition about what this thesis is all about, let us suppose that we know about two different logics, Logic A developed for reasoning about Purpose A and Logic B developed for reasoning about Purpose B. Logic A serves Purpose A very well, but not Purpose B. Logic B serves Purpose B very well but not Purpose A. We wish to fulfill both Purpose A and Purpose B, but presently we can only afford to let one logic guide through our reasoning. What shall we do? One option is to be content with having Logic A with which we handle Purpose A efficiently and Purpose B rather inefficiently. Another option is to choose Logic B instead. But there is yet another option: we combine Logic A and Logic B to derive a new logic Logic C which is still one logic but which serves both Purpose A and Purpose B efficiently. The combined logic is synthetic of the strengths in more basic logics (Logic A and Logic B). As it nicely takes care of our requirements, it may be the best choice among all that have been so far considered. Yet this is not the end of the story. Depending on the manner Logic A and Logic B combine, Logic C may have extensions serving more purposes than just Purpose A and Purpose B. Ensuing is the following problem: we know about Logic A and Logic B, but we may not know about combined logics of the base logics. To understand the combined logics, we need to understand the extensions in which base logics interact each other. Analysis on the interesting parts tends to be non-trivial, however. The mentioned two specific combined logics BI and BBI do not make an exception, for which proof-theoretical development has been particularly slow. It has remained in obscurity how to properly handle base-logic interactions of the combined logics as appearing syntactically. As one objective of this thesis, I provide analysis on the syntactic phenomena of the BI and BBI base-logic interactions within sequent calculus, to augment the knowledge. For BI, I deliver, through appropriate methodologies to reason about the syntactic phenomena of the base-logic interactions, the first BI sequent calculus free of any structural rules. Given its positive consequence to efficient proof searches, this is a significant step forward in further maturity of BI proof theory. Based on the calculus, I prove decidability of a fragment of BI purely syntactically. For BBI which is closely connected to application via separation logic, I develop adequate sequent calculus conventions and consider the implication of the underlying semantics onto syntax. Sound BBI sequent calculi result with a closer syntax-semantics correspondence than previously envisaged. From them, adaptation to separation logic is also considered. To promote the knowledge of combined logics in general within computer science, it is also important that we be able to study logical combinations themselves. Towards this direction of generalisation, I present the concept of phased sequent calculus - sequent calculus which physically separates base logics, and in which a specific manner of logical combination to take place between them can be actually developed and analysed. For a demonstration, the said decidable BI fragment is formulated in phased sequent calculus, and the sense of logical combination in effect is analysed. A decision procedure is presented for the fragment.
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Razgulyaeva, Anna. "Les enchaînements dialogiques avec les connecteurs : une étude de "mais", "oui", "non"". Thesis, Toulouse 2, 2012. http://www.theses.fr/2012TOU20007.
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Cette thèse présente une étude sémantico-pragmatique des emplois dialogiques de mais, oui, non et de leurs quatre combinaisons : mais oui, mais non, oui mais et non mais. Les enchaînements dialogiques « X – Mais Y » posent la question de l’unicité du sens du connecteur oppositif, étant donné que la relation entre les énoncés X et Y est très différente de celle qui s’établit entre les énoncés dans les configurations monologiques « X mais Y ». Dans cette thèse, les deux types d’enchaînement avec mais sont analysés dans le cadre de la sémantique dynamique, qui propose de décrire le sens des expressions linguistiques à partir de leur capacité à modifier le contexte. L’opération énonciative de mais est spécifiée à partir des contraintes imposées sur le contexte linguistique environnant, que l’examen de divers usages contextuels de mais en monologue et en dialogue a permis de révéler. Cet examen conduit à conclure que la spécificité des enchaînements dialogiques avec mais n’est pas liée à la sémantique du connecteur, mais à la progression du discours, différente en monologue et en dialogue. Les combinaisons de mais avec oui et avec non sont étudiées après une analyse détaillée du marqueur de validation et du marqueur de rejet. La façon dont ces deux marqueurs interagissent avec le contexte gauche témoigne de leur asymétrie sémantique, confirmée par la possibilité de les utiliser en tant que formes concurrentes pour valider un énoncé négatif. Dans les combinaisons de oui et de non avec mais, le second élément détermine le type de relation signalée : oui mais et non mais marquent l’opposition, tandis que mais oui et mais non traduisent la validation et le rejet. Néanmoins, le premier élément a des incidences sur l’interprétation du second. Ainsi, les réactions mais oui et mais non présentent l’information validée ou rejetée comme déjà admise dans le contexte ou, au contraire, comme exclue et donc impossible à envisager. En revanche, dans les réactions oui mais et non mais, le connecteur oppositif enchaîne sur l’information accessible à la suite de l’emploi du premier marqueurThis dissertation presents a semantic-pragmatic study of dialogic uses of mais, oui, non and their four combinations : mais oui, mais non, oui mais et non mais. The dialogic sequences “X – Mais Y” raise the question of the uniqueness of the oppositive connector, because the relationship between the utterances X and Y is very different from that which is established between both utterances in the “X mais Y” monologic configurations. In this dissertation, the two types of linking with mais are analyzed in the framework of dynamic semantics, which aims to describe the meaning of linguistic expressions from their ability to change the context. The enunciative operation of mais is specified from the constraints on the surrounding linguistic context that the examination of various contextual uses of mais in monologue and dialogue revealed. This examination leads to the conclusion that the specificity of dialogic sequences with mais is not related to the semantics of the connector, but the progress of speech, which is different in monologue and dialogue. Combinations of mais with oui and non are considered after a previous detailed analysis of validation marker and rejection marker. The way these two markers interact with the left context reflects their semantic asymmetry, confirmed by the possibility of using them as competing forms to confirm a negative utterance. In combination of oui and non with mais, the second element determines the type of relationship: oui mais and non mais mark the opposition, while mais oui and mais non reflect validation and rejection. However, the first element has a clear implication on the interpretation of the second one. In that sense mais oui and mais non responses present the validated or rejected information as already accepted in the context or, on the contrary, excluded, and therefore impossible to consider. On the other hand, in reactions with oui mais and non mais the oppositive connector regards the information accessible next to the use of the first marker
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Chung, Kuo-Chen, i 鍾國珍. "Combination of Error Correction Codes and Partial Transmit Sequences for Reduction of Peak-to-Average Power Ratio in OFDM Systems". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/pmk8z5.
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博士國立中興大學
電機工程學系所
106
In this dissertation, We propose to reduce PAPR in OFDM systems and reduce the computational complexity in conventional Partial Transmission Sequence (C-PTS) techniques. First, we presents a modified PTS algorithm for PAPR reduction of M-QAM OFDM signals by partitioning an OFDM block into non-disjoint OFDM sub-blocks. Since an M-QAM constellation can be written as sum of several QPSK constellations, we can then apply different disjoint partitions on the QPSK OFDM blocks, which result in an equivalent non-disjoint partition on the M-QAM OFDM block. Compared to a disjoint sub-block partition in conventional PTS, simulation results show that the modified PTS with a non-disjoint partition achieves better PAPR reduction in adjacent, interleaved, and random partitioning schemes. Second, we propose the parallel PTS (P-PTS) and serial PTS (S-PTS) methods to reduce the C-PTS complexity, based on the fact that the weighting factors are chosen as codewords of a linear block code. Compared to the C-PTS, the P-PTS and S-PTS methods not only reduce the computational complexity but also provide error correction capability for the weighting factors. Third, we present the PAPR reduction of OFDM signals by executing PTS in tree structure and minimal trellis of block codes. The proposed method uses a linear code with the tree structure and good minimal trellis to select the transmitted OFDM signal with minimum PAPR and to transmit side information with error correction. The goals of combining strategy of tree structure and trellis in PTS are twofold: to provide a low complexity PTS for weighting vector search and to highlight error protection capability for side information. Simulation results show that the proposed scheme achieves good PAPR reduction with lower complexity, compared to other PTS approaches.
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Lin, Wei, i 林瑋. "Combination of Convolutional Codes With Partial Transmit Sequence for PAPR Reductionin OFDM System". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/95579250224455705158.
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碩士國立中興大學
通訊工程研究所
103
In this thesis, we propose combination of Convolutional Code(CC) with orthogonal frequency division multiplexing (OFDM) system. This method provides the error correction capability for the input data and the phase factor. One of the drawbacksinOFDM system is the high peak- to-average powerratio (PAPR).when the same sub- carrier phases are adding together.Itcauses the high PAPR in OFDM system. We select PartialTransmitSequence(PTS) systemas the main system to reducethe PAPR, and then use thetree structure to control phase factor number to reduce the comput -ational complexity. Finally, this method does not need to transmit additional sideinformation to the receiver.
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Li, Yeng-Ting, i 李彥霆. "Combination of Partial Transmit Sequence with Linear Block Codes for PAPR Reduction in OFDM System". Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5441109%22.&searchmode=basic.
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碩士國立中興大學
電機工程學系所
107
Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier system capable of high-rate data transmission, and has many advantages. One of the important shortcomings is the Peak To Average Power (PAPR). In order to solve this problem, we have many methods such as SLM, PTS, etc. This article is mainly based on PTS. Compared with the traditional partial transmission sequence (PTS), this paper uses tree and trellis structure of error correction (ECC), it can reduce the peak-to-average power ratio and search complexity either, and based on this, it is applied to data of larger length.
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Lee, Su-I., i 李書逸. "Design of Structures and Clutching Sequences of Combinational Epicyclic-Type Automatic Transmissions for Automobiles". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/28382040630454381804.
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碩士國立中山大學
機械與機電工程學系研究所
98
An epicyclic-type automatic transmission is a device which is connected from engine to driving wheels, and the main purpose is to maintain the revolution speed of engine to be in a desired working range while accelerating or decelerating the automobile. The epicyclic -type automatic transmissions in production are mostly Ravigneaux-type epicyclic mechanisms, and in recent year, the development of automatic transmissions for automobile is oriented to the orientation of setting an single epicyclic gear mechanism instead of the input to bring various inputs of revolution speed to increase the total number of speed ratios of an automatic transmission, and such type of epicyclic is called combinational epicyclic-type automatic transmissions for automobiles. For the incompletion in the relative design methodology, a systematic methodology of designing mechanism and clutching-sequence of combinational epicyclic-type automobile transmission is described. First, fundamental principle of the combination and operations of automatic transmissions are analyzed to establish the design requirements. Second, a procedure of structure synthesis of combinational epicyclic-type automobile transmission is brought up which the planar graphic method is applied for. Third, based on Speed Ratio Relationship of each clutching sequence, a procedure of gearing-sequence is introduced. Finally, on the basis of the analytic method, the teeth of gears is to be clarified. The result of this work obtains five types of the combinational epicyclic-type automatic transmissions which could reach six speeds.
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Hong, Zhi-Hao, i 洪志豪. "Combination of Iteration and Modified Tree Structure with Partial Transmit Sequence for PAPR Reduction in OFDM System". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/10475986268877293896.
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碩士國立中興大學
通訊工程研究所
104
In this paper, we proposed three methods of orthogonal frequency division multiplexing (OFDM) system combined partial transmit sequence (PTS) with low complexity. In the PTS, as sub-blocks increase, the performance of reducing peak-to-average power ratio (PAPR) is getting better, but complexity grow exponentially. The first method is to reduce the complexity of PTS by iteration, and uses the information obtained from last time to get better performance, so it can use less sub-blocks to get the same performance as PTS .The second method is to reduce much complexity by modified tree structure than RC-PTS. The last is to reduce complexity of tree structure by Fano algorithm, and changes the parallel form of tree structure into series form. In this method, we also add the threshold to let complexity lower.
Książki na temat "Combination sequences"
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Activities manual to accompany programmable logic controllers. Wyd. 4. New York, NY: McGraw-Hill Higher Education, 2011.
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Holland, John H. 4. Agents, networks, degree, and recirculation. Oxford University Press, 2014. http://dx.doi.org/10.1093/actrade/9780199662548.003.0004.
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‘Agents, networks, degree, and recirculation’ explains that when studying complex adaptive systems (CAS) in a grammar-like way, agents serve as the ‘alphabet’. The hierarchical organization of CAS implies different kinds of agents at different levels, with correspondingly different grammars. The interactions of signal-processing agents at a point in time can be specified by a network—a snapshot of the agents’ performance capability. The combination of high fanout (the richness of an agent’s interactions) and hierarchical organization results in complex networks that include large numbers of sequences that form loops. More complex loops allow the CAS to ‘look ahead’, examining the effects of various action sequences without actually executing the actions.
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Kirillov, A. A., M. L. Gerver, S. I. Gelfand i N. N. Konstantinov. Sequences, Combinations, Limits (Library of School Mathematics, V. 3). Dover Publications, 2002.
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Wang, Jason T. L., Bruce A. Shapiro i Dennis Shasha, red. Pattern Discovery in Biomolecular Data. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195119404.001.0001.
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Finding patterns in biomolecular data, particularly in DNA and RNA, is at the center of modern biological research. These data are complex and growing rapidly, so the search for patterns requires increasingly sophisticated computer methods. Pattern Discovery in Biomolecular Data provides a clear, up-to-date summary of the principal techniques. Each chapter is self-contained, and the techniques are drawn from many fields, including graph theory, information theory, statistics, genetic algorithms, computer visualization, and vision. Since pattern searches often benefit from multiple approaches, the book presents methods in their purest form so that readers can best choose the method or combination that fits their needs. The chapters focus on finding patterns in DNA, RNA, and protein sequences, finding patterns in 2D and 3D structures, and choosing system components. This volume will be invaluable for all workers in genomics and genetic analysis, and others whose research requires biocomputing.
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Din, Roshidi, Siti Sakira Kamaruddin, Angela Amphawan i Mohd Nizam Omar. Basic discrete structures. UUM Press, 2015. http://dx.doi.org/10.32890/9789670876177.
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Digital technology has pervaded almost all spheres of life.Due to the importance of discrete information in our increasingly digital world, familiarity with the underlying principles, concepts and operations on discrete information is inevitable.This book is intended as a basic course for introducing students to abstract mathematical structures to represent discrete information and relationships between them.These discrete structures include sets, sequences, permutations, combinations, functions, trees and finite-state machines which are predominantly used in computer science and data networking, and extended to fields which involve the organization, computation or optimization of objects from a large data set such as to botany, geography, chemistry, genetics, zoology, finance and linguistics. While the book is light, a good balance is struck between the teaching of basic concepts and the exposure to practical applications to demonstrate the relevance and practicality of discrete structures in modeling and solving real-world problems.
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Kao, Mou-Chieh. Development of DNA-tagged liposome biosensing devices and enzyme-linked dot blot assay in combination with nucleic acid sequence-based amplification for rapid detection of viable shiga toxin-producing escherichia coli. Ithaca, NY : Cornell University, 2000, 2003.
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Guthrie, Graeme. The Firm Divided. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190641184.001.0001.
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This book investigates the conflict between the managers and shareholders of large corporations. Shareholders want managers to act in ways that make their shares as valuable as possible, but managers ultimately want to maximize their own wellbeing. The outcome of manager-shareholder conflict is largely determined by a firm’s board of directors, which engages in a sequence of bargaining games with the firm’s managers. The book presents a conceptual framework for understanding board-manager interactions that is underpinned by decades of academic research into corporate governance. It shows how boards monitor managers, and the problems they face when doing so. It shows how boards provide incentives for managers to work in shareholders’ best interests, using a combination of ownership stakes and performance-based pay. And it also shows how boards delegate monitoring to outside parties, including by determining the effectiveness of the market for corporate control. In every case, tools that can benefit shareholders when used by strong boards can actually harm shareholders when used by weak boards. The book shows all of this by blending the stories of particular firms and individuals with the insights of academic research, helping the non-specialist reader understand how the seemingly disparate events it describes can be understood through the lens of manager-shareholder conflict.
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Weirich, Paul. Rational Responses to Risks. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190089412.001.0001.
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A philosophical account of risk, such as this book provides, states what risk is, which attitudes to it are rational, and which acts affecting risks are rational. Attention to the nature of risk reveals two types of risk, first, a chance of a bad event, and, second, an act’s risk in the sense of the volatility of its possible outcomes. The distinction is normatively significant because different general principles of rationality govern attitudes to these two types of risk. Rationality strictly regulates attitudes to the chance of a bad event and is more permissive about attitudes to an act’s risk. Principles of rationality governing attitudes to risk also justify evaluating an act according to its expected utility given that the act’s risk, if any, belongs to every possible outcome of the act. For a rational ideal agent, the expected utilities of the acts available in a decision problem explain the agent’s preferences among the acts. Maximizing expected utility is just following preferences among the acts. This view takes an act’s expected utility, not just as a feature of a representation of preferences among acts, but also as a factor in the explanation of preferences among acts. It takes account of an agent’s attitudes to an act’s risk without weakening the standard of expected-utility maximization. The view extends to evaluations of combination of acts, either simultaneous or in a sequence. Applications cover hedging, return-risk evaluation, professional advice, and government regulation.
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Mee, Nicholas. Celestial Tapestry. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198851950.001.0001.
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Celestial Tapestry places mathematics within a vibrant cultural and historical context, highlighting links to the visual arts and design, and broader areas of artistic creativity. Threads are woven together telling of surprising influences that have passed between the arts and mathematics. The story involves many intriguing characters: Gaston Julia, who laid the foundations for fractals and computer art while recovering in hospital after suffering serious injury in the First World War; Charles Howard, Hinton who was imprisoned for bigamy but whose books had a huge influence on twentieth-century art; Michael Scott, the Scottish necromancer who was the dedicatee of Fibonacci’s Book of Calculation, the most important medieval book of mathematics; Richard of Wallingford, the pioneer clockmaker who suffered from leprosy and who never recovered from a lightning strike on his bedchamber; Alicia Stott Boole, the Victorian housewife who amazed mathematicians with her intuition for higher-dimensional space. The book includes more than 200 colour illustrations, puzzles to engage the reader, and many remarkable tales: the secret message in Hans Holbein’s The Ambassadors; the link between Viking runes, a Milanese banking dynasty, and modern sculpture; the connection between astrology, religion, and the Apocalypse; binary numbers and the I Ching. It also explains topics on the school mathematics curriculum: algorithms; arithmetic progressions; combinations and permutations; number sequences; the axiomatic method; geometrical proof; tessellations and polyhedra, as well as many essential topics for arts and humanities students: single-point perspective; fractals; computer art; the golden section; the higher-dimensional inspiration behind modern art.
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Threlfall, E. J., J. Wain i C. Lane. Salmonellosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0030.
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Salmonellosis remains the second most common form of bacterial food-poisoning in the UK and in most of the developed economies. Although the number of isolations per annum has declined since 2000, over 10,000 laboratory-confirmed cases are recognised each year in England and Wales, and over 150,000 in Europe. Most of infections are associated with contaminated food, particularly of poultry origin, but also may originate from cattle and pigs, and to a lesser extent, sheep. The most common serovars from cases of human infection is Enteritidis, followed by Typhimurium. Contact with pets, particularly reptiles and amphibians is becoming an increasing problem and infections can be severe, particularly in children. Accurate and reproducible methods of identification and subtyping are crucial for meaningful epidemiological investigations, and traditional phenotypic methods of typing are now being supplemented by DNA- based methods such as pulsed-field gel electrophoresis, variable number of tandem repeats analysis, and multilocus sequence typing. The use of such methods in combination with phenotypic methods has been invaluable for outbreak control at the international level. The occurrence of resistance to antimicrobial drugs is an increasing problem, particularly in relation to the development of resistance to antimicrobials regarded as ‘critically-important’ for last resort therapy in humans. Control measures such as vaccination of poultry flocks appear to have had a substantial impact on the number of infections with Salmonella Enteritidis. Nevertheless good hygiene practices in both catering establishments and the home remain essential for the control of infections at the local level.
Części książek na temat "Combination sequences"
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Giese, Martin A., Barbara Knappmeyer i Heinrich H. Bülthoff. "Automatic Synthesis of Sequences of Human Movements by Linear Combination of Learned Example Patterns". W Biologically Motivated Computer Vision, 538–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-36181-2_54.
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Ko, Kwang-Eun, i Kwee-Bo Sim. "Emotion Recognition in Facial Image Sequences Using a Combination of AAM with FACS and DBN". W Intelligent Robotics and Applications, 702–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16584-9_67.
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Yao, Yung-Cheng, Ho-Lung Hung i Jyh-Horng Wen. "OFDM System with Reduce Peak-to-Average Power Ratio Using Optimum Combination of Partial Transmit Sequences". W Lecture Notes in Computer Science, 459–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38703-6_54.
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Zimmermann, Georg. "Stereo matching based on a combination of simple features used for matching in temporal image sequences". W Computer Vision — ECCV 90, 616–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/bfb0014924.
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Hsu, Chen-Ming, Chien-Yu Chen, Ching-Chi Hsu i Baw-Jhiune Liu. "Efficient Discovery of Structural Motifs from Protein Sequences with Combination of Flexible Intra- and Inter-block Gap Constraints". W Advances in Knowledge Discovery and Data Mining, 530–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11731139_62.
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O’Regan, Gerard. "Sequences, Series and Permutations and Combinations". W Undergraduate Topics in Computer Science, 117–30. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34209-8_7.
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O’Regan, Gerard. "Sequences, Series and Permutations and Combinations". W Texts in Computer Science, 85–97. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44561-8_5.
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Zheng, Jeffrey, i Jie Wan. "Visual Maps of Variant Combinations on Random Sequences". W Variant Construction from Theoretical Foundation to Applications, 333–50. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2282-2_22.
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Hunt, D. F., J. Shabanowitz, M. A. Moseley, A. L. McCormack, H. Michel, P. A. Martino, K. B. Tomer i J. W. Jorgenson. "Protein and Peptide Sequence Analysis by Tandem Mass Spectrometry in Combination with Either Capillary Electrophoresis or Micro-Capillary HPLC". W Methods in Protein Sequence Analysis, 257–66. Basel: Birkhäuser Basel, 1991. http://dx.doi.org/10.1007/978-3-0348-5678-2_26.
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Qiao, Yongliang, Cindy Cappelle i Yassine Ruichek. "Visual Localization Using Sequence Matching Based on Multi-feature Combination". W Advanced Concepts for Intelligent Vision Systems, 324–35. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48680-2_29.
Pełny tekst źródłaStreszczenia konferencji na temat "Combination sequences"
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Cresp, G., Zepernick H-J i Hai Huyen Dam. "Combination Oppermann sequences for spread spectrum systems". W Proceedings. International Symposium on Information Theory, 2005. ISIT 2005. IEEE, 2005. http://dx.doi.org/10.1109/isit.2005.1523705.
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Liu, Jihong, i Yong Wang. "Assembly Planning and Assembly Sequences Combination Using Assembly Feature Interference". W 2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics. IEEE, 2007. http://dx.doi.org/10.1109/cadcg.2007.4407951.
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Salmam, Fatima Zahra, Abdellah Madani i Mohamed Kissi. "New distances combination for facial expression recognition from image sequences". W 2016 IEEE/ACS 13th International Conference of Computer Systems and Applications (AICCSA). IEEE, 2016. http://dx.doi.org/10.1109/aiccsa.2016.7945716.
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Kong, Yinghui, i Lei Wang. "Moving Target Classification in Video Sequences Based on Features Combination and SVM". W 2010 International Conference on Computational Intelligence and Software Engineering (CiSE). IEEE, 2010. http://dx.doi.org/10.1109/cise.2010.5676969.
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Mittal, Udar, Tenkasi V. Ramabadran i James P. Ashley. "Coding pulse sequences using a combination of factorial pulse coding and arithmetic coding". W 2010 International Conference on Signal Processing and Communications (SPCOM). IEEE, 2010. http://dx.doi.org/10.1109/spcom.2010.5560556.
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Peng, Xiaoming, i Qian Ma. "Aligning Overlapping Image Sequences by the Combination of Feature-Based and Direct Methods". W 2008 International Conference on Computer Science and Software Engineering. IEEE, 2008. http://dx.doi.org/10.1109/csse.2008.449.
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Goyal, Rohit, B. Hemanth Kumar i Makarand M. Lokhande. "Combination of switching sequences in SVPWM to reduce line current ripple for IM drives". W 2017 6th International Conference on Computer Applications in Electrical Engineering-Recent Advances (CERA). IEEE, 2017. http://dx.doi.org/10.1109/cera.2017.8343347.
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D’Souza, Roshan M., i Zaryab Ahmad. "Applications of Genetic Algorithms in Process-Planning: Tool Sequence Selection for 2.5D Pocket Machining". W ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99368.
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Rapid tool change mechanisms in modern CNC machines have enabled the use of multiple tools (sequence of tools) to machine a given pocket. Larger diameter tools that have higher material removal rates are used to clear large open spaces, smaller tools are used for clean up. The challenge lies in selecting that particular combination of tools that minimizes total cost. Previously, we developed algorithms based on network optimization to find the best tool sequence given a list of cutters, cutting parameters and pocket geometry. The formulation was based on certain assumptions that did not account for tool holder geometry. It also required the evaluation of all possible tool-pair combinations for a given tool set. This can get time consuming if the tool set is large. In this paper, we present a genetic algorithm based method to select optimal tool sequences. The algorithm was implemented and bench marked against the graph algorithm. We have found that the GA based method is able to find a near optimal tool sequence without evaluating up to 30% of all possible tool-pairs.
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Yamano, Hidemasa, Hiroyuki Nishino i Kenichi Kurisaka. "Development of Probabilistic Risk Assessment Methodology of Decay Heat Removal Function Against Combination Hazards of Strong Wind and Rainfall for Sodium-Cooled Fast Reactors". W 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66059.
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This paper describes probabilistic risk assessment (PRA) methodology development against combination hazard of strong wind and rainfall. In this combination hazard PRA, a hazard curve has been evaluated in terms of maximum instantaneous wind speed, hourly rainfall, and rainfall duration. A scenario analysis provided event sequences resulted from the combination hazard of strong wind and rainfall. The event sequence was characterized by the function loss of auxiliary cooling system, of which heat transfer tubes could crack due to cycle fatigue by cyclic contact of rain droplets. This situation could occur if rain droplets ingress into air cooler occurs after the air cooler roof failure due to strong-wind-generated missile impact. This event sequence was incorporated into an event tree which addressed component failure by the combination hazard. Finally, a core damage frequency has been estimated the order of 10−7/year in total by multiplying discrete hazard frequencies by conditional decay heat removal failure probabilities. A dominant sequence is the failure of the auxiliary cooling system by the missile impact after the failure of external fuel tank by the missile impact. A dominant hazard is the maximum instantaneous wind speed of 40–60 m/s, the hourly rainfall of 20–40 mm/h, and the rainfall duration of 0–10 h.
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Segeborn, Johan, Johan S. Carlson, Kristina Wa¨rmefjord i Rikard So¨derberg. "Evaluating Genetic Algorithms on Welding Sequence Optimization With Respect to Dimensional Variation and Cycle Time". W ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48393.
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Spot welding is the predominant joining method in car body assembly. Spot welding sequences have a significant influence on the dimensional variation of resulting assemblies and ultimately on overall product quality. It also has a significant influence on welding robot cycle time and thus ultimately on manufacturing cost. In this work we evaluate the performance of Genetic Algorithms, GAs, on multi-criteria optimization of welding sequence with respect to dimensional assembly variation and welding robot cycle time. Reference assemblies are fully modelled in 3D including detailed fixtures, welding robots and weld guns. Dimensional variation is obtained using variation simulation and part measurement data. Cycle time is obtained using automatic robot path planning. GAs are not guaranteed to find the global optimum. Besides exhaustive calculations, there is no way to determine how close to the actual optimum a GA trial has reached. Furthermore, sequence fitness evaluations constitute the absolute majority of optimization computation running time and do thus need to be kept to a minimum. Therefore, for two industrial reference assemblies we investigate the number of fitness evaluations that is required to find a sequence that is optimal or a near-optimal with respect to the fitness function. The fitness function in this work is a single criterion based on a weighted and normalized combination of dimensional variation and cycle time. Both reference assemblies involves 7 spot welds which entails 7!=5040 possible welding sequences. For both reference assemblies, dimensional variation and cycle time is exhaustively calculated for all 5040 possible sequences, determining the optimal sequence, with respect to the fitness function, for a fact. Then a GA that utilizes Random Key Encoding is applied on both cases and the performance is recorded. It is found that in searching through about 1% of the possible sequences, optimum is reached in about half of the trials and 80–90% of the trials reach the ten best sequences. Furthermore the optimum of the single criterion fitness function entails dimensional variation and cycle time fairly close to their respective optimum. In conclusion, this work indicates that genetic algorithms are highly effective in optimizing welding sequence with respect to dimensional variation and cycle time.
Raporty organizacyjne na temat "Combination sequences"
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Merkulova, Yuliya. Система цифровых моделей - новая технология для баланса данных. Yuliya Merkulova, kwiecień 2021. http://dx.doi.org/10.12731/er0430.26042021.
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Use of the digital technologies is new and very productive approach for balance of different data. It is very important for balance of supply and demand and for increase of competitiveness of products. Various types of digital models were developed as a result of scientific research, they found reflection in article. Digital models for the description of the list of the sequences of steps and operations of various stages and process in general allow to install system of interrelations between operations and steps and to reach necessary log-ic, increase of effectiveness of any process. Object-relational models for establishment of communications between data of various blocks of databases and functional models of the choice of strategy of data balance form analytical base for justification of the choice of the direction of transformation of data. Models of a combination of a plurality of various data of the offer of products in the form of matrixes of multi-purpose optimization have double effect, because they allow not only to develop various options of data combina-tion, taking into account opportunities of change of location of products over the markets and temporary phases, but also to estimate aggregate useful effect from products. These models together with models of comparison of various options and the choice of optimal solutions allow to generate compatible strategic and current programs of the offer of products as a plurality of the output data balanced with each other and with data of demand. It is providing the best synergetic result. The developed methodology of creation of system of the interconnected digital models for transformation of data and generation of the output data of the situational-strategic program of the offer of products is a cornerstone of formation of new digital econ-omy – of economy of balanced data.
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Jorgensen, Frieda, Andre Charlett, Craig Swift, Anais Painset i Nicolae Corcionivoschi. A survey of the levels of Campylobacter spp. contamination and prevalence of selected antimicrobial resistance determinants in fresh whole UK-produced chilled chickens at retail sale (non-major retailers). Food Standards Agency, czerwiec 2021. http://dx.doi.org/10.46756/sci.fsa.xls618.
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Campylobacter spp. are the most common bacterial cause of foodborne illness in the UK, with chicken considered to be the most important vehicle for this organism. The UK Food Standards Agency (FSA) agreed with industry to reduce Campylobacter spp. contamination in raw chicken and issued a target to reduce the prevalence of the most contaminated chickens (those with more than 1000 cfu per g chicken neck skin) to below 10 % at the end of the slaughter process, initially by 2016. To help monitor progress, a series of UK-wide surveys were undertaken to determine the levels of Campylobacter spp. on whole UK-produced, fresh chicken at retail sale in the UK. The data obtained for the first four years was reported in FSA projects FS241044 (2014/15) and FS102121 (2015 to 2018). The FSA has indicated that the retail proxy target for the percentage of highly contaminated raw whole retail chickens should be less than 7% and while continued monitoring has demonstrated a sustained decline for chickens from major retailer stores, chicken on sale in other stores have yet to meet this target. This report presents results from testing chickens from non-major retailer stores (only) in a fifth survey year from 2018 to 2019. In line with previous practise, samples were collected from stores distributed throughout the UK (in proportion to the population size of each country). Testing was performed by two laboratories - a Public Health England (PHE) laboratory or the Agri-Food & Biosciences Institute (AFBI), Belfast. Enumeration of Campylobacter spp. was performed using the ISO 10272-2 standard enumeration method applied with a detection limit of 10 colony forming units (cfu) per gram (g) of neck skin. Antimicrobial resistance (AMR) to selected antimicrobials in accordance with those advised in the EU harmonised monitoring protocol was predicted from genome sequence data in Campylobacter jejuni and Campylobacter coli isolates The percentage (10.8%) of fresh, whole chicken at retail sale in stores of smaller chains (for example, Iceland, McColl’s, Budgens, Nisa, Costcutter, One Stop), independents and butchers (collectively referred to as non-major retailer stores in this report) in the UK that are highly contaminated (at more than 1000 cfu per g) with Campylobacter spp. has decreased since the previous survey year but is still higher than that found in samples from major retailers. 8 whole fresh raw chickens from non-major retailer stores were collected from August 2018 to July 2019 (n = 1009). Campylobacter spp. were detected in 55.8% of the chicken skin samples obtained from non-major retailer shops, and 10.8% of the samples had counts above 1000 cfu per g chicken skin. Comparison among production plant approval codes showed significant differences of the percentages of chicken samples with more than 1000 cfu per g, ranging from 0% to 28.1%. The percentage of samples with more than 1000 cfu of Campylobacter spp. per g was significantly higher in the period May, June and July than in the period November to April. The percentage of highly contaminated samples was significantly higher for samples taken from larger compared to smaller chickens. There was no statistical difference in the percentage of highly contaminated samples between those obtained from chicken reared with access to range (for example, free-range and organic birds) and those reared under standard regime (for example, no access to range) but the small sample size for organic and to a lesser extent free-range chickens, may have limited the ability to detect important differences should they exist. Campylobacter species was determined for isolates from 93.4% of the positive samples. C. jejuni was isolated from the majority (72.6%) of samples while C. coli was identified in 22.1% of samples. A combination of both species was found in 5.3% of samples. C. coli was more frequently isolated from samples obtained from chicken reared with access to range in comparison to those reared as standard birds. C. jejuni was less prevalent during the summer months of June, July and August compared to the remaining months of the year. Resistance to ciprofloxacin (fluoroquinolone), erythromycin (macrolide), tetracycline, (tetracyclines), gentamicin and streptomycin (aminoglycosides) was predicted from WGS data by the detection of known antimicrobial resistance determinants. Resistance to ciprofloxacin was detected in 185 (51.7%) isolates of C. jejuni and 49 (42.1%) isolates of C. coli; while 220 (61.1%) isolates of C. jejuni and 73 (62.9%) isolates of C. coli isolates were resistant to tetracycline. Three C. coli (2.6%) but none of the C. jejuni isolates harboured 23S mutations predicting reduced susceptibility to erythromycin. Multidrug resistance (MDR), defined as harbouring genetic determinants for resistance to at least three unrelated antimicrobial classes, was found in 10 (8.6%) C. coli isolates but not in any C. jejuni isolates. Co-resistance to ciprofloxacin and erythromycin was predicted in 1.7% of C. coli isolates. 9 Overall, the percentages of isolates with genetic AMR determinants found in this study were similar to those reported in the previous survey year (August 2016 to July 2017) where testing was based on phenotypic break-point testing. Multi-drug resistance was similar to that found in the previous survey years. It is recommended that trends in AMR in Campylobacter spp. isolates from retail chickens continue to be monitored to realise any increasing resistance of concern, particulary to erythromycin (macrolide). Considering that the percentage of fresh, whole chicken from non-major retailer stores in the UK that are highly contaminated (at more than 1000 cfu per g) with Campylobacter spp. continues to be above that in samples from major retailers more action including consideration of interventions such as improved biosecurity and slaughterhouse measures is needed to achieve better control of Campylobacter spp. for this section of the industry. The FSA has indicated that the retail proxy target for the percentage of highly contaminated retail chickens should be less than 7% and while continued monitoring has demonstrated a sustained decline for chickens from major retailer stores, chicken on sale in other stores have yet to meet this target.