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PERIODIC COMPLEMENTARY BINARY SEQUENCE PAIRS 被引量:16
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作者 XuChengqian ZhaoXiaoqun 《Journal of Electronics(China)》 2002年第2期152-159,共8页
A new set of binary sequences-Periodic Complementary Binary Sequence Pair (PCSP) is proposed. A new class of block design-Difference Family Pair (DFP) is also proposed.The relationship between PCSP and DFP, the proper... A new set of binary sequences-Periodic Complementary Binary Sequence Pair (PCSP) is proposed. A new class of block design-Difference Family Pair (DFP) is also proposed.The relationship between PCSP and DFP, the properties and existing conditions of PCSP and the recursive constructions for PCSP are given. 展开更多
关键词 Coding theory Periodic complementary binary sequence pairs Difference family pairs Autocorrelation function Block design
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THE CONSTRUCTIONS OF ALMOST BINARY SEQUENCE PAIRS WITH THREE-LEVEL CORRELATION BASED ON CYCLOTOMY 被引量:1
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作者 Peng Xiuping Xu Chengqian 《Journal of Electronics(China)》 2012年第1期9-16,共8页
In this paper,a new class of almost binary sequence pair with a single zero element is presented.The almost binary sequence pairs with three-level correlation are constructed based on cyclotomic numbers of order 2,4,a... In this paper,a new class of almost binary sequence pair with a single zero element is presented.The almost binary sequence pairs with three-level correlation are constructed based on cyclotomic numbers of order 2,4,and 6.Most of them have good correlation and balance property,whose maximum nontrivial correlation magnitudes are 2 and the difference between the numbers of occurrence of +1's and-1's are 0 or 1.In addition,the corresponding binary sequence pairs are investigated as well and we can also get some kinds of binary sequence pairs with optimum balance and good correlation. 展开更多
关键词 CORRELATION Cyclotomic numbers Almost binary sequence pairs Binary sequence pair
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Constructions for almost perfect binary sequence pairs with even length 被引量:2
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作者 PENG Xiuping LIN Hongbin +1 位作者 REN Jiadong1 CHEN Xiaoyu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2018年第2期256-261,共6页
The concept of the binary sequence pair is generalized from a single binary sequence. Binary sequence pairs are applied in many fields of radar, sonar or communication systems, in which signals with optimal periodic c... The concept of the binary sequence pair is generalized from a single binary sequence. Binary sequence pairs are applied in many fields of radar, sonar or communication systems, in which signals with optimal periodic correlation are required. Several types of almost perfect binary sequence pairs of length T = 2q are constructed, where q is an odd number. These almost perfect binary sequence pairs are based on binary ideal sequence or binary ideal two-level correlation sequence pairs by using Chinese remainder theorem. For these almost perfect binary sequence pairs with good balanced property, their corresponding divisible difference set pairs(DDSPs) are also derived. 展开更多
关键词 sequence design divisible difference set pair(DDSP) binary sequence pair almost perfect
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Uncovering immune cell heterogeneity in hepatocellular carcinoma by combining single-cell RNA sequencing with T-cell receptor sequencing
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作者 Xin-Yu Gu Shuang-Lin Gu +8 位作者 Zi-Yi Chen Jin-Long Tong Xiao-Yue Li Hui Dong Cai-Yun Zhang Wen-Xian Qian Xiu-Chang Ma Chang-Hua Yi Yong-Xiang Yi 《World Journal of Hepatology》 2025年第2期140-158,共19页
BACKGROUND Understanding the status and function of tumor-infiltrating immune cells is essential for improving immunotherapeutic effects and predicting the clinical response in human patients with carcinoma.However,li... BACKGROUND Understanding the status and function of tumor-infiltrating immune cells is essential for improving immunotherapeutic effects and predicting the clinical response in human patients with carcinoma.However,little is known about tumor-infiltrating immune cells,and the corresponding research results in hepatocellular carcinoma(HCC)are limited.AIM To investigate potential biomarker genes that are important for the development of HCC and to understand how immune cell subsets react throughout this process.METHODS Using single-cell RNA sequencing and T-cell receptor sequencing,the heterogeneity and potential functions of immune cell subpopulations from HCC tissue and normal tissue adjacent to carcinoma,as well as their possible interactions,were analyzed.RESULTS Eight T-cell clusters from patients were analyzed and identified using bioinformatics,including six typical major Tcell clusters and two newly identified T-cell clusters,among which Fc epsilon receptor 1G+T cells were characterized by the upregulation of Fc epsilon receptor 1G,tyrosine kinase binding protein,and T cell receptor delta constant,whereas metallothionein 1E+T cells proliferated significantly in tumors.Differentially expressed genes,such as regulator of cell cycle,cysteine and serine rich nuclear protein 1,SMAD7 and metallothionein 1E,were identified as significantly upregulated in tumors and have potential as biomarkers.In association with T-cell receptor analysis,we inferred the clonal expansion characteristics of each T-cell cluster in HCC patients.CONCLUSION We identified lymphocyte subpopulations and potential biomarker genes critical for HCC development and revealed the clonal amplification of infiltrating T cells.These data provide valuable resources for understanding the response of immune cell subsets in HCC. 展开更多
关键词 Single-cell RNA sequencing Paired T-cell receptor sequencing Hepatocellular carcinoma Immune cell subpopulations Tumor-infiltrating immune cells
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RESEARCH ON PERFECT DYADIC BINARY SEQUENCE PAIR 被引量:2
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作者 Mao Fei Jiang Ting Zhao Chenglin Zhou Zheng 《Journal of Electronics(China)》 2006年第3期361-364,共4页
In this paper, the perfect dyadic binary sequence pair with one-value dyadic correlation functions is presented. That is, the perfect dyadic binary sequence pair is a perfect discrete signal, for its dyadic relative f... In this paper, the perfect dyadic binary sequence pair with one-value dyadic correlation functions is presented. That is, the perfect dyadic binary sequence pair is a perfect discrete signal, for its dyadic relative function is δ-function. The transformation features and some existing admissibility conditions of perfect dyadic binary sequence pair are discussed, and the properties for this kind of code in Walsh transformation spectrum and weight spectrum are also analyzed. From above, It is found that the perfect dyadic binary sequence pair can easily differentiate from its dyadic shifting. So these good signals can used in engineering as synchronization code, multi-user code and so on. 展开更多
关键词 Code theory CORRELATION DYADIC sequence pair
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