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On the coding capacity of reverse-complement and palindromic duplication-correcting codes

DESIGNS CODES AND CRYPTOGRAPHY 2025年 1-20页

作者： Yohananov, Lev Schwartz, Moshe MIGAL Galilee Res Inst Dept Comp Sci IL-11016 Kiryat Shmona Israel McMaster Univ Dept Elect & Comp Engn Hamilton ON L8S 4K1 Canada Ben Gurion Univ Negev Sch Elect & Comp Engn IL-8410501 Beer Sheva Israel

We derive the coding capacity for duplication-correcting codes capable of correcting any number of duplications. We do so both for reverse-complement duplications, as well as palindromic (reverse) duplications. We show that except for duplication-length 1, the coding capacity is 0. When the duplication length is 1, the coding capacity depends on the alphabet size, and we construct optimal codes.

关键词： Error-correcting codes String-duplication systems Reverse-complement duplication Palindromic duplication coding capacity

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Quantitative analysis of the coding capacity of C. elegans using RNA-Seq data

Quantitative analysis of the coding capacity of C. elegans u...

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作者： Matthew J Douglas SIMON FRASER UNIVERSITY

学位级别：硕士

Annotating the genome of the nematode Caenorhabditis elegans has been an ongoing challenge for the last twenty years. Studies have leveraged high-throughput RNA- sequencing (RNA-Seq) to uncover evidence for thousands of novel splicing events, indicating that the current annotations are far from complete. Yet, there is some uncertainty whether the many rare events represent functional transcripts, or simply biological noise. We developed a method that leverages the wealth of publicly available RNA-Seq data to perform a quantitative evaluation of the completeness of the current C. elegans genome annotation. We identified 134,949 and 204,812 novel high-quality introns and exons, respectively. We find that many introns and exons are rarely expressed overall, but strongly expressed at specific developmental stages suggesting a functional role. We assembled a high-quality set of 72,274 protein-coding transcripts to show that only a fraction of the coding transcriptome of C. elegans is represented in the current genome annotation.

关键词： coding capacity alternative splicing Caenorhabditis elegans RNA-Seq transcriptome bioinformatics

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A Novel Design Approach for Co/Cross-Polarizing Chipless RFID Tags of High coding capacity

IEEE JOURNAL OF RADIO FREQUENCY IDENTIFICATION

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IEEE JOURNAL OF RADIO FREQUENCY IDENTIFICATION 2017年第2期1卷 135-143页

作者： Khaliel, Maher El-Awamry, Ahmed Megahed, Abdelfattah Fawky Kaiser, Thomas Duisburg Essen Univ Dept Digital Signal Proc D-47057 Duisburg Germany

This paper presents a novel frequency coded chipless RFID tag, which exploits the backscattered co-polarized and cross-polarized responses from a tag illuminated with a linear polarized wave. Consequently, the tag-ID is configured in two orthogonal planes. The frequency notches are encoded in the co-polarization plane and the re-radiation peaks are encoded in the cross-polarization plane. Therefore, the co/cross-polarizing Notch/Peak modulation scheme presents a novel criterion for maximizing the coding capacity of the chipless RFID systems. Moreover, the cross-polarized response enhances the tag detection in a real environment. The proposed tag and the associated physical modulation scheme are validated using EM simulations and measurements.

关键词： Chipless RFID physical modulation co/cross-polarizing Notch/Peak coding capacity

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Design Prospects of Parallel U-shaped Multi-Resonator for Fabric-based Chipless RFID Tags

Design Prospects of Parallel U-shaped Multi-Resonator for Fa...

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2023 Innovations in Power and Advanced Computing Technologies, i-PACT 2023

作者： Khan, Sanaullah Zakir Hossain, A.K.M. Kayser Azam, S.M. Othman, Mohamadariff Hassim, Nurulhalim Bin Centre for Telecommunication Research & Innovation Fakulti Teknologi Kejuruteraan Elektrik & Elektronik Universiti Teknikal Malaysia Melaka Durian Tunggal Melaka Malaysia Department of Electrical Engineering Universiti Malaya Kuala Lumpur50603 Malaysia

ISBN: (纸本)9798350325188

This paper introduces a new 10-bit planar parallel U-shaped multi-resonator (PUMR) that is designed specifically for retransmission-based chipless radio frequency identification (CRFID) applications, with the aim of enabling its integration into fabric-based CRFID systems. The PUMR functions within the ultra-wide band (UWB) frequency spectrum. Simulation of the PUMR was carried out on two distinct PCB types, namely Rogers 3003 and Rogers 5880, as well as five different fabric-based substrates: pile, denim, silk, felt, and fleece. The results reveal a good spectral density (bits/GHz) of up to 4.7 bits/GHz was achieved using the Rogers 5880 substrate within a bandwidth of 2.13 GHz. Also, the design displays a good spatial density of ~ 11 bit/cm2. The PUMR design exhibits a coding capacity of up to 10 bits. The effectiveness of the proposed design was demonstrated by employing various extracted bit streams, such as 1111111111, 0000000000, 0101010101, 1010101010, and 0101000101. Additionally, a bending analysis was conducted to assess the suitability of the design on fabric. These findings showcase the efficiency of the proposed PUMR design and provide an incentive for CRFID designers to develop compact, high-capacity tags in UWB range. © 2023 IEEE.

关键词： coding capacity CRFID fabric material Multi-resonator UWB

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A large capacity expansion and robust recognition method of dot-dispersing coded targets with binary step-response serial encoding

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MEASUREMENT 2024年 225卷

作者： Song, Limei Zheng, Tenglong Li, Yunpeng Deng, Sanpeng Yang, Yangang Zhu, Xinjun Tiangong Univ Tianjin Key Lab Intelligent Control Elect Equipmen Tianjin 300387 Peoples R China Tiangong Univ Sch Control Sci & Engn Tianjin 300387 Peoples R China Tiangong Univ Sch Mech Engn Tianjin 300387 Peoples R China Tiangong Univ Sch Artificial Intelligence Tianjin 300387 Peoples R China Tianjin Univ Technol & Educ Sch Mech Engn Tianjin 300222 Peoples R China Tianjin Univ Technol & Educ Inst Robot & Intelligent Equipment Tianjin 300222 Peoples R China Tianjin Key Lab Intelligent Robot Technol & Applic Tianjin 300350 Peoples R China Tianjin Bonus Robot Technol Co Ltd Tianjin 300350 Peoples R China

In close-range photogrammetry, it is difficult to meet the measurement requirements of large scenes in actual engineering due to the limited capacity of coded targets. To expand the capacity of the coded target, we propose a binary step-response serial-coded target (BSSCT). The BSSCT introduces periodic binary wave information as an additional feature in the dot-dispersing coded target. Also, a robust recognition algorithm for the BSSCT is developed, the P2-Invariant, and the step period is used for decoding. The capacity of the coded target reaches 7 magnitudes without increasing the auxiliary points. Under different lighting conditions and viewing angles, the measurement experiments show that the BSSCT outperforms other state-of-the-art coded targets. Our BSSCT is a promising standard method for large-field system calibration and object measurement.

关键词： Step response serial encoding Coded target coding capacity Cross-ratio P2-Invariant

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CircZNF609 regulates pulmonary fibrosis via miR-145-5p/KLF4 axis and its translation function

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CELLULAR & MOLECULAR BIOLOGY LETTERS 2023年第1期28卷 105-105页

作者： Sun, Wenqing Zhou, Siyun Peng, Lan Liu, Yi Cheng, Demin Wang, Yue Ni, Chunhui Nanjing Med Univ Ctr Global Hlth Key Lab Modern Toxicol Minist EducSch Publ HlthDept Occupat Med & Envir Nanjing 211166 Peoples R China Nanjing Med Univ Dept Publ Hlth Kangda Coll Lianyungang 320700 Peoples R China

BackgroundPulmonary fibrosis is a growing clinical problem that develops as a result of abnormal wound healing, leading to breathlessness, pulmonary dysfunction and ultimately death. However, therapeutic options for pulmonary fibrosis are limited because the underlying pathogenesis remains incompletely understood. Circular RNAs, as key regulators in various diseases, remain poorly understood in pulmonary fibrosis induced by *** performed studies with fibroblast cell lines and silica-induced mouse pulmonary fibrosis models. The expression of circZNF609, miR-145-5p, and KLF4 was determined by quantitative real-time polymerase chain reaction (qRT-PCR) analysis. RNA immunoprecipitation (RIP) assays and m6A RNA immunoprecipitation assays (MeRIP), Western blotting, immunofluorescence assays, and CCK8 were performed to investigate the role of the circZNF609/miR-145-5p/KLF4 axis and circZNF609-encoded peptides in fibroblast *** data showed that circZNF609 was downregulated in activated fibroblasts and silica-induced fibrotic mouse lung tissues. Overexpression of circZNF609 could inhibit fibroblast activation induced by transforming growth factor-beta 1 (TGF-beta 1). Mechanically, we revealed that circZNF609 regulates pulmonary fibrosis via miR-145-5p/KLF4 axis and circZNF609-encoded peptides. Furthermore, circZNF609 was highly methylated and its expression was controlled by N6-methyladenosine (m6A) modification. Lastly, in vivo studies revealed that overexpression of circZNF609 attenuates silica-induced lung fibrosis in *** data indicate that circZNF609 is a critical regulator of fibroblast activation and silica-induced lung fibrosis. The circZNF609 and its derived peptides may represent novel promising targets for the treatment of pulmonary fibrosis.

关键词： Silicosis circZNF609 coding capacity Non-coding RNA

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A novel capacity expansion and recognition acceleration method for dot-dispersing coded targets in photogrammetry

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MEASUREMENT SCIENCE AND TECHNOLOGY 2022年第12期33卷 125016-125016页

作者： Wang, Meng Guo, Yuhan Wang, Qiang Liu, Yang Liu, Jiaxin Song, Xin Wang, Guo Zhang, Hu State Ocean Adm South China Sea Environm Monitoring Ctr Gungzhou 510300 Peoples R China Tianjin Normal Univ Sch Geog & Environm Sci Tianjin 300387 Peoples R China China Univ Min & Technol Beijing Sch Geosci & Mapping Engn Beijing 100083 Peoples R China Henan Univ Engn Inst Civil Engn Zhengzhou 451191 Peoples R China

In close-range photogrammetry, some improved designs have been developed to increase the coding capacity of Schneider-like concentric circular coded targets. However, another typical type, Hattori-like dot-dispersing coded targets (HCTs), is rarely expanded. In this paper, we give our detailed solution to recognize a kind of non-public HCT used in video-simultaneous triangulation and resection systems. Then, an advanced HCT (AHCT) with multiple templates and simplified P-2-Invariant is proposed, which achieves capacity expansion and recognition acceleration. First, the cross-ratio invariant is used in template recognition, and then the affine transformation is used in decoding. During the template recognition process, multiple templates are designed to expand the coding capacity, and a simplified P-2-Invariant is adopted to accelerate the recognition. Experiments are carried out with different shooting angles ranging from 0 degrees to 80 degrees, with smaller coded targets, with mixed coded targets of different sizes and with large outdoor scenes, and the results show that AHCTs can not only preserve the stability of the HCTs, but also achieve the capacity growth of coded targets at a faster recognition rate by 14.6%. The AHCTs with large capacity can be applied in scenarios with a large size or complex structure, and the acceleration advantage can be considered in real-time dynamic domains.

关键词： coded target coding capacity photogrammetry cross-ratio P-2-Invariant

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Platform Tolerant, High Encoding capacity Dipole Array-Plate Chipless RFID Tags

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IEEE ACCESS 2019年 7卷 138707-138720页

作者： Svanda, Milan Polivka, Milan Havlicek, Jaroslav Machac, Jan Werner, Douglas H. Czech Tech Univ Fac Elect Engn Dept Electromagnet Field Prague 16627 Czech Republic Penn State Univ Dept Elect Engn CEARL University Pk PA 16802 USA

In this paper, we first carry out an in-depth review of the performance parameters of frequency-domain chipless RFID transponders in terms of their spatial density, spectral capacity, and comprehensive encoding capacity (bit/lambda(2)/GHz) comprising both spatial and spectral performance, and platform tolerance. Secondly, we theoretically and numerically investigate the recently introduced and promising concept of the platform-tolerant chipless RFID transponder based on a detuned dipole array-plate that provides high encoding capacity. We propose, fabricate and measure a 20-bit transponder consisting of an array of 20 detuned dipoles closely coupled to a 60 x 60 mm(2) metallic plate. The radar cross section at the level of -15 dBsm exhibits reliably recognizable minima corresponding to individual dipole resonances. When compared to other published frequency-domain chipless RFID transponders, the encoding capacity reaches 47.4 bit/lambda(2)/GHz, which constitutes one of the highest values, while achieving a concurrently high level of radar cross section (RCS) reflection response and platform tolerance performance. The measurements confirm very good performance parameters in the cases when the transponder is attached to various packaging materials, such as cardboard, plastic, wood, metal or a human body phantom. The essential benefits of the presented solution include a very good frequency and amplitude stability in the RCS response, which enables a reliable reading of encoded information (if zero bits are coded). The double layer metallization represents an inherent property of the proposed solution, which is a necessary trade-off for high encoding capacity and contemporary platform tolerance.

关键词： Chipless radiofrequency identification coding capacity coupled modes theory dipole scatterer electromagnetic band-gap high impedance surfaces platform tolerant tag quality factor radar cross section

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A novel protein encoded by circMAPK1 inhibits progression of gastric cancer by suppressing activation of MAPK signaling

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MOLECULAR CANCER 2021年第1期20卷 66-66页

作者： Jiang, Tianlu Xia, Yiwen Lv, Jialun Li, Bowen Li, Ying Wang, Sen Xuan, Zhe Xie, Li Qiu, Shengkui He, Zhongyuan Wang, Linjun Xu, Zekuan Nanjing Med Univ Dept Gen Surg Div Gastr Surg Affiliated Hosp 1 300 Guangzhou Rd Nanjing 210029 Jiangsu Peoples R China Nantong Univ Dept Gen Surg Affiliated Hosp 2 Nantong 226001 Jiangsu Peoples R China Nanjing Med Univ Collaborat Innovat Ctr Canc Personalized Med Jiangsu Key Lab Canc Biomarkers Prevent & Treatme Nanjing 210029 Jiangsu Peoples R China

Background A novel type of noncoding RNA, circRNA has been reported to participate in the occurrence and development of diseases through many mechanisms. The MAPK pathway is a common signal transduction pathway involved in cell proliferation, inflammation and apoptosis and plays a particularly important role in cancers. However, the role of circRNAs related to the MAPK pathway in gastric cancer has not been explored. Methods A bioinformatics analysis was performed to profile and identify the circRNAs involved in the MAPK pathway in gastric cancer. The tumor-suppressive role of circMAPK1 was confirmed both in vitro and in vivo. Mass spectrometry, Western blot and immunofluorescence staining assays were used to validate the existence and expression of MAPK1-109aa. The molecular mechanism of circMAPK1 was investigated by mass spectrometry and immunoprecipitation analyses. Results In this study, we identified that circMAPK1 (hsa_circ_0004872) was downregulated in gastric cancer tissues compared with adjacent normal tissues. Importantly, lower circMAPK1 expression predicted poor survival in GC patients. CircMAPK1 inhibited the proliferation and invasion of gastric cancer cells in vitro and in vivo. Next, we found that circMAPK1 encoded a novel protein with 109 amino acids in length. Through a series of functional experiments, we confirmed that circMAPK1 exerted a tumor-suppressing effect via the encoded protein MAPK1-109aa. Mechanistically, the tumor suppressor MAPK1-109aa inhibited the phosphorylation of MAPK1 by competitively binding to MEK1, thereby suppressing the activation of MAPK1 and its downstream factors in MAPK pathway. Conclusions Our study revealed that circMAPK1 inhibits the malignant biological behavior of gastric cancer cells through its encoded protein MAPK1-109aa. More importantly, circMAPK1 is a favorable predictor for gastric cancer patients and may provide a new therapeutic target in the treatment of gastric cancer.

关键词： Gastric cancer Circular RNA coding capacity MAPK pathway

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High-speed data acquisition of the reader of the SAW RFID system

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IET SCIENCE MEASUREMENT & TECHNOLOGY 2019年第8期13卷 1163-1169页

作者： Chen, Zhijun Jia, Hao Chen, Tao Wang, Xinchen Guo, Jiajia Cai, Pinggen Nanjing Univ Aeronaut & Astronaut Coll Automat Engn Dept Measurement & Testing Engn Nanjing 211106 Jiangsu Peoples R China Zhejiang Univ Technol Coll Sci Dept Phys Hangzhou 310014 Zhejiang Peoples R China

The measurement of the echo time delays and phases of the surface acoustic wave (SAW) tag by the corresponding reader should be more accurate with the increase of the coding capacity, and the design of the high-speed data acquisition module (DAM) is the key factor for the improvement of the reader performance. Aiming at the large capacity SAW tag, which combines pulse time delay and phase coding, the radio-frequency (RF) band-pass sampling and digital quadrature demodulation scheme is utilised for the reader design. The design of the high-speed DAM includes the analysis, calculation and determination of the sampling frequency, the sampling clock design with cascaded phase-locked loop structure and the driver circuit design etc. Finally, the SAW RFID system is established, and the time delays and phases of the tag reflectors are tested. The measurement results show the effectiveness of the high-speed DAM of the reader.

关键词： demodulation data acquisition radiofrequency identification signal sampling phase coding quadrature amplitude modulation clocks surface acoustic wave signal processing SAW RF identification system surface acoustic wave tag coding capacity high-speed data acquisition module reader performance capacity SAW tag pulse time delay phase coding radio-frequency band-pass sampling digital quadrature demodulation scheme reader design sampling clock design cascaded phase-locked loop structure driver circuit design tag reflectors sampling frequency determination high-speed DAM design echo time delay measurement

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