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Статті в журналах з теми "Low-Order Code"

Автор: Grafiati

Опубліковано: 10 березня 2023

Оновлено: 31 липня 2025

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1

Raković, Lazar, Milutinović Đorđević, Paweł Lula, Vuk Vuković, Marek Dziura, and Tomasz Rojek. "Low code/no code software development: Definition, drivers, and inhibitors." Anali Ekonomskog fakulteta u Subotici, no. 00 (2025): 57. https://doi.org/10.5937/aneksub2500007r.

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Анотація:

Purpose: Low Code and No Code refer to software development by end users with little or no IT background. The goal of the manuscript is to define this concept, as well as identify the drivers on one hand, and the limitations, challenges, and inhibitors on the other. Methodology: In order to answer the previously posed research questions, a systematic literature review was conducted. The systematic review of the literature included three main steps: planning the review, conducting the review, and writing the report. Findings: The paper presents various definitions of the LowCode/NoCode concept,

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2

Barletta, Luca, and Arnaldo Spalvieri. "Design of Short, High-Rate DVB-S2-Like Semi-Regular LDPC Codes." Research Letters in Communications 2008 (2008): 1–4. http://dx.doi.org/10.1155/2008/324503.

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This work focuses on high-rate () moderate-length () low-density parity-check codes. High-rate codes allow to maintain good quality of the preliminary decisions that are used in carrier recovery, while a moderate code length allows to keep the latency low. The interleaver of the LDPC matrix that we consider is inspired to the DVB-S2 standard one. A novel approach for avoiding short cycles is analyzed. A modified BP decoding algorithm is applied in order to deal with longer cycles. Simulations and results for the AWGN channel are presented, both for BPSK signalling and for coded modulation base

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3

Ovchinnikov, Andrei A., and Anna A. Fominykh. "Analysis and optimization of error-correcting coding schemes for channels with Rayleigh fading." H&ES Research 15, no. 3 (2023): 47–56. http://dx.doi.org/10.36724/2409-5419-2023-15-3-47-56.

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Conventional approach to perform error-correcting decoding in channels with memory is an adoption of interleaving, which increases the receiver complexity and delay. In order to avoid these limitations, approaches for adapting an error-correcting scheme for memory channels may be used. One approach is to use error-correcting codes with modified design and decoding procedure, taking into account the presence of error bursts in the channel. Another approach to adapting the coding scheme for burst error correction is to use product codes with iterative decoding algorithms. Component codes of prod

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4

Shu, Bingxin, Jing Lei, Xinjin Lu, and Jianghua Cheng. "Adaptive transmission construction based on polar codes." Journal of Physics: Conference Series 2497, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2497/1/012012.

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Abstract In actual communication scenarios, wireless transmission channels have the nature of heterogeneity. In order to ensure that data can be transmitted with high reliability and low delay, this paper designs a quasi-optimal polar code that can adapt to various channel environments, which called Q-polar code. Based on the polarization theory of polar codes and the channel state information (CSI), the index set of polar codes is designed and constructed to perform data transmission tasks. The simulation results show that the bit error rate (BER) performance of proposed scheme can be improve

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5

Serwa, Kamila. "Low-Code/No-Code zur Darstellung von Produktionsdaten über die Asset Administration Shell." Zeitschrift für wirtschaftlichen Fabrikbetrieb 119, no. 5 (2024): 378–84. http://dx.doi.org/10.1515/zwf-2024-1057.

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Abstract In order to drive digital transformation in manufacturing companies, low-code/no-code offers an alternative approach to software development. The technical article shows the functionality and application of the low-code/ no-code method in production in combination with the Digital Twin and the Asset Administration Shell. Using the open source platform „Saltcorn“, it is described how a dashboard for visualizing production data can be implemented in the form of a web application using low-code/ no-code without any programming knowledge. Companies can use dashboards to analyze their prod

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6

Belhadj, Salima, Abdelmounaim Moulay Lakhdar, and Ridha Ilyas Bendjillali. "Performance comparison of channel coding schemes for 5G massive machine type communications." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 902–8. https://doi.org/10.11591/ijeecs.v22.i2.pp902-908.

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Channel coding for the fifth generation (5G) mobile communication is currently facing new challenges as it needs to uphold diverse emerging applications and scenarios. Massive machine-type communication (mMTC) constitute one of the main usage scenarios in 5G systems, which promise to provide low data rate services to a large number of low power and low complexity devices. Research on efficient coding schemes for such use case is still ongoing and no decision has been made yet. Therefore, This paper compares the performance of different coding schemes, namely: tail-biting convolutional code (TB

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7

Gunadi, Gagah Aji, and Dana Sulistyo Kusumo. "COMPARISON OF MNOTE APPLICATION DEVELOPMENT EFFICIENCY USING LOW CODE AND FULL CODE DEVELOPMENT APPROACHES." Jurnal Teknik Informatika (Jutif) 5, no. 2 (2024): 645–51. https://doi.org/10.52436/1.jutif.2024.5.2.1728.

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Low Code Development has become more popular in recent years as it offers the ability to develop applications faster. Before the concept of Low Code programming, problems related to the efficiency of application development time were often faced when using manual or Full Code programming approaches. The problem becomes crucial when working on a large-scale application development scope. In this research, the author tries to measure and compare the difference in development efficiency between Low Code and Full Code approaches in the development of a web-based application called MNote, an order

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8

Shridhar, Shreyas. "Analysis of Low Code-No Code Development Platforms in comparison with Traditional Development Methodologies." International Journal for Research in Applied Science and Engineering Technology 9, no. 12 (2021): 508–13. http://dx.doi.org/10.22214/ijraset.2021.39328.

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Abstract: This paper examines the overview of low-code/no-code development platforms in comparison with traditional development methodologies and examines the benefits and limitations of the same. For several decades, businesses have had multiple options when they demanded new information systems. They could develop a new system using in-house developers, or they could order a system from an external merchant. This offers a close fit to business obligations. However, nowadays, there is a new alternative that is becoming increasingly prevalent. Low code/no code (LC/NC) applications can cater to

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9

Belhadj, Salima, Abdelmounaim Moulay Lakhdar, and Ridha Ilyas Bendjillali. "Performance comparison of channel coding schemes for 5G massive machine type communications." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 902. http://dx.doi.org/10.11591/ijeecs.v22.i2.pp902-908.

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Анотація:

<p><span>Channel coding for the fifth generation (5G) mobile communication is currently facing new challenges as it needs to uphold diverse emerging applications and scenarios. Massive machine-type communication (mMTC) constitute one of the main usage scenarios in 5G systems, which promise to provide low data rate services to a large number of low power and low complexity devices. Research on efficient coding schemes for such use case is still ongoing and no decision has been made yet. Therefore, This paper compares the performance of different coding schemes, namely: tail-biting c

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10

Văduva, Bogdan, and Honoriu Vălean. "Designing a Low-Code CRUD framework." Carpathian Journal of Electronic and Computer Engineering 14, no. 1 (2021): 11–19. http://dx.doi.org/10.2478/cjece-2021-0003.

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Abstract Nowadays programmers write source code for inserting, editing and deleting records of a relational table. The majority of commercial relational databases include a specific management tool that offers such possibilities and most database programmers take this ability as granted. When it comes to real life applications, programmers use Object Oriented (OO) paradigm to build user friendly windows/screens/forms for database operations. The current work shows a different approach using a Low-code CRUD (Create, Read, Update, Delete) framework. Views and guidelines of how to design a Low-co

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11

Schmidt, K. U. "On cosets of the generalized first-order reed-muller code with low PMEPR." IEEE Transactions on Information Theory 52, no. 7 (2006): 3220–32. http://dx.doi.org/10.1109/tit.2006.876252.

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12

Ke, Jing, Xiaochun Lu, Xue Wang, Xiaofei Chen, and Sheng Tang. "Concatenated Coding for GNSS Signals in Urban Environments." Applied Sciences 10, no. 18 (2020): 6397. http://dx.doi.org/10.3390/app10186397.

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This work investigated concatenated coding schemes for Global Navigation Satellite System (GNSS) signals in order to increase their error correction capability in urban environments. In particular, a serial concatenated code that combines an outer Reed–Solomon (RS) code with an inner low-density parity-check (LDPC) code was designed, and the performance was investigated over the land mobile satellite (LMS) channel for characterizing multipath and shadow fading in urban environments. The performance of the proposed concatenated coding scheme was compared to that of a B-CNAV1 message, in which t

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13

Haah, Jeongwan, and Matthew B. Hastings. "Codes and Protocols for Distilling T, controlled-S, and Toffoli Gates." Quantum 2 (June 7, 2018): 71. http://dx.doi.org/10.22331/q-2018-06-07-71.

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We present several different codes and protocols to distill T, controlled-S, and Toffoli (or CCZ) gates. One construction is based on codes that generalize the triorthogonal codes, allowing any of these gates to be induced at the logical level by transversal T. We present a randomized construction of generalized triorthogonal codes obtaining an asymptotic distillation efficiency γ→1. We also present a Reed-Muller based construction of these codes which obtains a worse γ but performs well at small sizes. Additionally, we present protocols based on checking the stabilizers of CCZ magic states at

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14

Zhao, Dan-feng, Hai Tian, and Rui Xue. "Adaptive Rate-Compatible Non-Binary LDPC Coding Scheme for the B5G Mobile System." Sensors 19, no. 5 (2019): 1067. http://dx.doi.org/10.3390/s19051067.

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This paper studies an adaptive coding scheme for B5G (beyond 5th generation) mobile system-enhanced transmission technology. Different from the existing works, the authors develop a class of rate-compatible, non-binary, low-density parity check (RC-NB-LDPC) codes, which expresses the strong connection between the algebra-based and graph-theoretic-based constructions. The constructed codes can not only express rate-compatible (RC) features, but also possess a quasi-cyclic (QC) structure that facilitates the encoding implementation. Further, in order to achieve the code rate-adaptive allocation

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15

Xue, Rui, Tong Wang, Yanbo Sun, and Huaiyu Tang. "Optimized Design for NB-LDPC-Coded High-Order CPM: Power and Iterative Efficiencies." Symmetry 12, no. 8 (2020): 1353. http://dx.doi.org/10.3390/sym12081353.

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In this paper, a non-binary low-density parity-check (NB-LDPC) coded high-order continuous phase modulation (CPM) system is designed and optimized to improve power and iterative efficiencies. Firstly, the minimum squared normalized Euclidean distance and the 99% double-sided power bandwidth are introduced to design a competitive CPM, improving its power efficiency under a given code rate and spectral efficiency. Secondly, a three-step method based on extrinsic information transfer (EXIT) and entropy theory is used to design NB-LDPC codes, which reduces the convergence threshold approximately 0

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16

Tao, Yang. "Research and Application of Several Error Correction Codes in Communication." Highlights in Science, Engineering and Technology 53 (June 30, 2023): 49–55. http://dx.doi.org/10.54097/hset.v53i.9681.

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Error correction code is an important part of contemporary communication engineering, first proposed by Shannon, and has become mature nowadays. This paper analyzes and compares the error correction capabilities of BCH code, cyclic code, and Hamming code using BPSK modulation in AWGN channels. It unfolds in chronological order, introducing the popular codewords of various eras of the last century in turn. Moreover, it introduces the communication process of BPSK modulation and its addition of three codes and compares the bit error rates of the output signals of them when the input signal is a

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17

Kumari, Annushree. "Channel Coding Technique for 5G to Improve Flexibility." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 2582–89. http://dx.doi.org/10.22214/ijraset.2021.36820.

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5G wireless network will take place after 4G. It will create many new issues. Some problems like, communication with low BER, and performance might be severe issue. In this thesis, coding methods are proposed in order to decrease the signal loss during the transmission process of data. Also, the LDPC system is explained in order to get good results with lower bit error rate over 5G standards by trying to compare it with systems like, LDPC, Convolutional and Turbo code system. Finally, a framework is designed which is a combination of LDPC codes with polar codes in order to improve information

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18

klinkenberg, David. "The Gnostic Code." European Journal of Historical Research 3, no. 1 (2024): 13–18. http://dx.doi.org/10.47672/ejhr.1796.

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Purpose: The aim of the study was to the gnostic code. Materials and Methods: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The Gnostic parables excerpted above are sufficient to establish that a code was functioning in these documen

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19

Zhang, Qian Hua, and Jian Wu Zhang. "A Construction Method of LDPC Codes for Space Optical Communications Based on Protograph." Applied Mechanics and Materials 631-632 (September 2014): 791–94. http://dx.doi.org/10.4028/www.scientific.net/amm.631-632.791.

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In order to meet the requirements of low bit error-rate of the channel code in the space optical communication system, a construction method of low density parity check ( LDPC) codes with excellent performance is proposed based on protograph and quasi-cyclic expansion. It can be applied in high-speed encoding and decoding with efficient quasi-cyclic expansion. According to the proposed method, a LDPC ( 8832, 1472) suitable for the space optical communication system is constructed, in which the LDPC codes of the protograph perform very well. Simulation shows that the LDPC codes have superior er

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20

Ganmor, E., R. Segev, and E. Schneidman. "Sparse low-order interaction network underlies a highly correlated and learnable neural population code." Proceedings of the National Academy of Sciences 108, no. 23 (2011): 9679–84. http://dx.doi.org/10.1073/pnas.1019641108.

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21

Asif, Muhammad, Wuyang Zhou, Qingping Yu, Saifullah Adnan, Md Sadek Ali, and Muhammad Shahid Iqbal. "Jointly designed quasi-cyclic LDPC-coded cooperation with diversity combining at receiver." International Journal of Distributed Sensor Networks 16, no. 7 (2020): 155014772093897. http://dx.doi.org/10.1177/1550147720938974.

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This correspondence proposes a jointly-designed quasi-cyclic (QC) low-density parity-check (LDPC)-coded multi-relay cooperation with a destination node realized by multiple receive antennas. First, a deterministic approach is utilized to construct different classes of binary QC-LDPC codes with no length-4 cycles. Existing methods put some limitations in terms of code length and rate in order to provide high error-correction performance. Therefore, this article gives three classes of QC-LDPC codes based on a combinatoric design approach, known as cyclic difference packing (CDP), with flexibilit

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22

Tian, Yunke, Yong Bai, and Dake Liu. "Low-Latency QC-LDPC Encoder Design for 5G NR." Sensors 21, no. 18 (2021): 6266. http://dx.doi.org/10.3390/s21186266.

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In order to meet the low latency and high throughput requirements of data transmission in 5th generation (5G) New Radio (NR), it is necessary to minimize the low power encoding hardware latency on transmitter and achieve lower base station power consumption within a fixed transmission time interval (TTI). This paper investigates parallel design and implementation of 5G quasi-cyclic low-density parity-check (QC-LDPC) codes encoder. The designed QC-LDPC encoder employs a multi-channel parallel structure to obtain multiple parity check bits and thus reduce encoding latency significantly. The prop

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23

Sahin, I., J. Crane, and K. Watson. "Added Mass Coefficients for Submerged Bodies by a Low-Order Panel Method." Journal of Fluids Engineering 115, no. 3 (1993): 452–56. http://dx.doi.org/10.1115/1.2910159.

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The added mass coefficients for two and three-dimensional submerged bodies were calculated using a low-order panel code. The source and dipole strengths, and the panel surface area for each panel, were used to compute the integrals needed for added mass in all six degrees of motions. Several applications of this method were used in comparing the results with the theoretical, when available, experimental or other numerical results. The method was found to be successful in predicting the added mass coefficients using relatively low numbers of panels.

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24

Zhang, Wenyue, and Min Zhu. "Weighted BATS Codes with LDPC Precoding." Entropy 25, no. 4 (2023): 686. http://dx.doi.org/10.3390/e25040686.

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Batched Sparse (BATS) codes are a type of network coding scheme that use a combination of random linear network coding (RLNC) and fountain coding to enhance the reliability and efficiency of data transmission. In order to achieve unequal error protection for different data, researchers have proposed unequal error protection BATS (UEP-BATS) codes. However, current UEP-BATS codes suffer from high error floors in their decoding performance, which restricts their practical applications. To address this issue, we propose a novel UEP-BATS code scheme that employs a precoding stage prior to the weigh

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25

Su, Yang, Peng Han, Zhu Jun Jia, and Shi Hua Liang. "Digital Watermarking Based on Two-Way Arnold Transform and QR Code." Advanced Materials Research 591-593 (November 2012): 2564–67. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.2564.

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This paper proposes a digital watermarking algorithm based on two-way Arnold transformation and QR code. This algorithm uses the QR barcode as the watermark, and in its pretreatment process it uses the two-way Arnold transformation to broke up the QR code image into blocks which then coded and re-arranged in a specific order. Considering the role of Singular Value Decomposition in watermark embedding, here the watermark information is embedded into the low frequency coefficients of wavelet transform of the carrier image. Simulation results show that the algorithm is robust against attacks such

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26

Zong Chen, Dr Joy Iong. "5G Systems with Low Density Parity Check based Chanel Coding for Enhanced Mobile Broadband Scheme." IRO Journal on Sustainable Wireless Systems 2, no. 1 (2020): 42–49. http://dx.doi.org/10.36548/jsws.2020.1.005.

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The 5G mobile communication standard based radio access technology (RAT) is analysed for implementation of several candidate coding schemes in this paper. The third generation partnership project (3GPP) in the 5G scenario based on the Enhanced mobile broadband (eMBB) scheme is considered. Factors like flexibility, complexity of computation, bit error rate (BER), and block error rate (BLER) are considered for the purpose of evaluation of the coding schemes. In order to evaluate the performance various applications and services, a suitable set is of parameters are provided. The candidate schemes

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27

Crivellini, A., and F. Bassi. "A Three-Dimensional Parallel Discontinuous Galerkin Solver for Acoustic Propagation Studies." International Journal of Aeroacoustics 2, no. 2 (2003): 157–73. http://dx.doi.org/10.1260/147547203322775515.

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The paper presents recent developments of a computational code for the numerical investigation of acoustic propagation. The code solves the three-dimensional linear Euler equations using a Discontinuous Galerkin (DG) method for the spatial discretization and an explicit high-order low-storage Runge-Kutta method for advancing the solution in time. Thanks to DG discretization, high-order accurate numerical solutions on arbitrary unstructured hybrid grids have been easily computed. The code has been parallelized using MPI and preliminary results on a small 10-processor Linux cluster seem very pro

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28

Ma, Chao, Li Min Zhang, and Jian Xiong Wang. "Blind Estimation of Long Code DSSS Signal Based on Subspace Tracking." Applied Mechanics and Materials 484-485 (January 2014): 976–81. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.976.

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Aiming at solving the blind estimation problem of dispreading spectrum sequence under low SNR, a spread-spectrum estimation algorithm based subspace tracking is studied in this paper. This method avoids the direct eigen decomposition, using the sliding window technique to obtain the code synchronization, then use segmentation subspace tracking method estimate spreading sequence and splice in a certain order to achieve pseudo-code blind estimation. The results show that the algorithm can complete the accurate estimation of PN code sequence in low SNR conditions, reduce the amount of data storag

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29

Liu, Jie, Xiaojun Tong, Zhu Wang, Jing Ma, and Longteng Yi. "An Improved Rao–Nam Cryptosystem Based on Fractional Order Hyperchaotic System and EDF–QC–LDPC." International Journal of Bifurcation and Chaos 29, no. 09 (2019): 1950122. http://dx.doi.org/10.1142/s0218127419501220.

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A Rao–Nam cryptosystem based on error correction code is proposed to provide both security and reliability. Since its security is drastically constrained by the limited error syndromes, in this paper, an improved Rao–Nam cryptosystem based on fractional order hyperchaotic system and Extended Difference Family–Quasi-Cyclic–Low-Density Parity-Check (EDF–QC–LDPC) codes is proposed to improve the security. A four-dimensional fractional order hyperchaotic system is constructed and is used to generate an excellent pseudorandom sequence. By replacing error syndromes with the pseudorandom sequence and

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30

Jorge Fernandez-Mayoralas and Raouia Masmoudi Ghodhbane. "Performance of a parallel Hamming coding in short-frame OFDM sensor's network." ITU Journal on Future and Evolving Technologies 2, no. 1 (2021): 77–88. http://dx.doi.org/10.52953/tdhg1720.

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In this paper, we focus on the most relevant Error Correcting Codes (ECCs): the Hamming code and the Reed-Solomon code in order to meet the trade-off between the low implementation complexity and the high error correction capacity in a short-frame OFDM communication system. Moreover, we discuss and validate via simulations this trade-off between complexity (Hamming is the easiest to code) and error correction capability (Reed-Solomon being the most effective). Therefore, we have to either improve the correction capacity of the Hamming code, or decrease the complexity cost for the Reed-Solomon

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31

Kacheru, Goutham, Nagaraju Arthan, and Rohit Bajjuru. "Artificial Intelligence (AI) for Low-Code and No-Code Development: Making Non-Developers Developers in 2024." Formosa Journal of Multidisciplinary Research 4, no. 1 (2025): 141–50. https://doi.org/10.55927/fjmr.v4i1.13369.

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Low-code and no-code development platforms are here to transform the software development landscape by allowing even non-technical users build applications without the need of their advanced programming skills. Artificial Intelligence (AI) is the most crucial player in this evolution; reinvigorating these platforms with intelligent automation, device responsive templates and user-friendly interfaces (2024). Users can design, build, and deploy applications easily with AI-powered features (e.g., Natural Language Processing (NLP), drag-and-drop functionality to-design application & code-gener

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32

Yi, Yan. "The Design of 2D Bar Code Recognition Software on Android." Advanced Materials Research 442 (January 2012): 453–57. http://dx.doi.org/10.4028/www.scientific.net/amr.442.453.

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In order to promote the application of two dimensional barcode on mobile phone, this paper uses the popular Android technology, and researches QR code format and the decode process of the QR code; and then designs 2D bar code recognition system based on the decode library Zxing. After testing, it is proved that the system has good generality and low resource consuming, and the software of itself is only 140 K.

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33

Jin, Ayoung, and Younghwan Pan. "A Study on Citizen Developer Competency and Development Process in Low-Code/No-Code Development System." Korean Society of Culture and Convergence 44, no. 11 (2022): 119–31. http://dx.doi.org/10.33645/cnc.2022.11.44.11.119.

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The era of easy development of apps is opening as the cloud computing environment develops and the need for RPA increases. The development of the low-code/no-code development system has led to the emergence of citizen developers who can create their own apps without little or no coding knowledge. This study investigated the characteristics and types of citizen developers through a survey. The characteristics of citizen developers were identified as marketers, planners, developers, designers, ordinary people, and most of them want to develop RPA apps. The most common types of citizen developers

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34

Amerini, Alberto, Leonardo Langone, Riccardo Vadi, and Antonio Andreini. "Assessment of a hybrid propulsion system for short-mid range application with a low-order code." E3S Web of Conferences 312 (2021): 11005. http://dx.doi.org/10.1051/e3sconf/202131211005.

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The increase in air traffic expected in the next years must be accompanied by innovation to ensure the lowest possible environmental impact. Hybrid electric-thermal propulsion systems are currently being investigated and could represent a breakthrough for environmental sustainability in the sector. However, the transition to electric propulsion remains challenging due to the current level of energy density related to storage systems, the additional components associated with power conversion and control systems, not to mention the cost of all the associated equipment. The purpose of this study

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35

Blazewicz, Marek, Ian Hinder, David M. Koppelman, et al. "From Physics Model to Results: An Optimizing Framework for Cross-Architecture Code Generation." Scientific Programming 21, no. 1-2 (2013): 1–16. http://dx.doi.org/10.1155/2013/167841.

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Starting from a high-level problem description in terms of partial differential equations using abstract tensor notation, theChemoraframework discretizes, optimizes, and generates complete high performance codes for a wide range of compute architectures. Chemora extends the capabilities of Cactus, facilitating the usage of large-scale CPU/GPU systems in an efficient manner for complex applications, without low-level code tuning. Chemora achieves parallelism through MPI and multi-threading, combining OpenMP and CUDA. Optimizations include high-level code transformations, efficient loop traversa

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36

Xue, Jiaxin, Yupeng Li, Yichao Zhang, Xiao Wu, and Yanyue Zhang. "Investigation of IEEE 802.16e LDPC Code Application in PM-DQPSK System." Electronics 13, no. 10 (2024): 1887. http://dx.doi.org/10.3390/electronics13101887.

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With the development of the Internet and information technology, optical fiber communication systems need to meet people’s information demand for large capacity and high speed. High-order phase modulation and channel multiplexing can improve the capacity and data rate of optical fiber communication systems, but they also bring the problem of bit error. To improve the transmission quality and reliability of optical fiber communication systems, forward error correction (FEC) coding techniques are commonly used, which serve as the fundamental approach to enhance the quality and reliability of fib

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37

Andreini, A., and B. Facchini. "Gas Turbines Design and Off-Design Performance Analysis With Emissions Evaluation." Journal of Engineering for Gas Turbines and Power 126, no. 1 (2004): 83–91. http://dx.doi.org/10.1115/1.1619427.

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Many gas turbines simulation codes have been developed to estimate power plant performance both in design and off-design conditions in order to establish the adequate control criteria or the possible cycle improvements; estimation of pollutant emissions would be very important using these codes in order to determine the optimal performance satisfying legal emission restrictions. This paper present the description of a one-dimensional emission model to simulate different gas turbine combustor typologies, such as conventional diffusion flame combustors, dry-low NOx combustors (DLN) based on lean

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38

Kang, Chong. "A New World of Lakes—An Exploration of the Code for a New Low Carbon Realm—The Upgrading of Horticultural Lake in Mianyang Science City New District as an Example." Journal of Research in Social Science and Humanities 2, no. 3 (2023): 51–56. http://dx.doi.org/10.56397/jrssh.2023.03.07.

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This paper focuses on the upgrading project of Horticulture Lake in China's Science and Technology City-Miangyang, and summarizes the seven major problems of the current situation by sorting out the problems of the current situation of Horticulture Lake. With natural ecology and green sponge as the design concept of renovation and upgrading, seven major renovation and upgrading measures are proposed, such as the code of lake ecology, the code of three-dimensional ecological lake scape, the code of green ecological sponge, the code of road system upgrading, the code of flower border upgrading,

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39

Legrady, David, Marton Pukler, Balint Panka, and Gabor Tolnai. "Coupling the GUARDYAN code to subchanflow." EPJ Nuclear Sciences & Technologies 9 (2023): 11. http://dx.doi.org/10.1051/epjn/2023002.

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GUARDYAN is a GPU-based dynamic Monte Carlo code developed at the Budapest University of Technology and Economics, Hungary. Dynamic Monte Carlo computes the neutron population evolution by calculating the direct time dependence of the neutron histories in multiplying systems. Some well-established Monte Carlo codes have DMC versions with coupling to Thermal-Hydraulic solvers. GUARDYAN has the computational advantage of applying GPUs, thus calculation burden can be carried by commonly available hardware, and is capable of handling power plant size systems for kinetics problems. GUARDYAN has bee

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40

Hajji, Amine, Christine Coquelet-Pascal, and Patrick Blaise. "A hybrid approach for neutronics calculations in the neutron shielding of sodium fast reactors." EPJ Nuclear Sciences & Technologies 7 (2021): 17. http://dx.doi.org/10.1051/epjn/2021016.

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Neutron calculations in the neutron shielding of fast neutron reactors are a complex problem as deterministic schemes are usually not suited for such calculations while Monte-Carlo codes have poor computational performance due to the very low flux levels in neutron shields. In this article, both methods are studied, as well as a hybrid scheme on the neutron shielding of the ASTRID fast reactor benchmark. This hybrid scheme uses a fission source calculated by a deterministic code in order to precisely calculate neutron fluxes in the shielding with a Monte-Carlo code using variance reduction tec

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41

Chen, Yuxin, Jie Cheng, Xiaodong Li, Xue Bai, and Zhixi Nie. "Research on Tracking Technique Based on BPSK-CSK Signals." Electronics 13, no. 8 (2024): 1517. http://dx.doi.org/10.3390/electronics13081517.

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The code-shift keying (CSK) modulation method can achieve higher information transmission rates without changing the spread spectrum signal bandwidth. In order to optimise the spread spectrum modulation and demodulation of GNSS signals, in addition to the signal structure, binary phase-shift keying (BPSK) and CSK signals using time-division multiplexing are proposed. A tracking method based on the BPSK-CSK signals is also proposed, which generates the P-branch local codes by fast Fourier transform to obtain the code-slice spacings for the E-branch and the L-branch local codes. Then, the tracke

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42

Hirata, F. P., R. G. M. de Andrade, and J. C. Della Bella. "Comparative analysis between prediction models in codes and test data for shear strength." Revista IBRACON de Estruturas e Materiais 6, no. 6 (2013): 875–902. http://dx.doi.org/10.1590/s1983-41952013000600004.

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Since the beginning of twentieth century, along with academic publications of Ritter and Mörsch, several studies have been done in order to understand shear strength in reinforced concrete elements. Approximately 1,200 laboratory tests results of reinforced concrete beams under shear stresses were used in a comparative analysis among values from prediction models of codes and laboratory tests results, enabling classification of the codes according to their applicability in several tests intervals. Although the Brazilian Code NBR 6118 (2007) showed good results in usual ranges of parameters, it

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43

Kuo, F. A., and J. S. Wu. "Implementation of a parallel high-order WENO-type Euler equation solver using a CUDA PTX paradigm." Journal of Mechanics 37 (2021): 496–512. http://dx.doi.org/10.1093/jom/ufab016.

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ABSTRACT This study proposes the optimization of a low-level assembly code to reconstruct the flux for a splitting flux Harten–Lax–van Leer (SHLL) scheme on high-end graphic processing units. The proposed solver is implemented using the weighted essentially non-oscillatory reconstruction method to simulate compressible gas flows that are derived using an unsteady Euler equation. Instructions in the low-level assembly code, i.e. parallel thread execution and instruction set architecture in compute unified device architecture (CUDA), are used to optimize the CUDA kernel for the flux reconstructi

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44

Al-nahari, A. Y., F. E. Abd El-Samie, and M. I. Dessouky. "Distributed Space-Time/Frequency Coding Schemes for Single-Carrier Frequency Division Multiple Access Systems." ISRN Communications and Networking 2011 (April 4, 2011): 1–10. http://dx.doi.org/10.5402/2011/549706.

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The single carrier-frequency division multiple access (SC-FDMA) system is a new system that was adopted in the standardization of the upcoming 3GPP long-term evolution (LTE). Designing diversity-achieving schemes for the SC-FDMA system is a challenging task. The codes adopted should not affect the peak-to-average power ratio (PAPR) among other constraints. In this paper, we consider the design of cooperative diversity schemes for SC-FDMA systems in the uplink direction. Specifically, two relay-assisted distributed space-time/frequency codes are proposed. The proposed distributed space-frequenc

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45

Nazarov, L. E. "//." Радиотехника и электроника 68, no. 9 (2023): 873–78. http://dx.doi.org/10.31857/s003384942309019x.

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A description of the algorithm for optimal symbol-by-symbol reception of signal structures based on block noise-resistant codes in non-binary Galois fields is given. It is shown that the basis of this algorithm is the fast spectral transformation algorithm in the Walsh–Hadamard basis with the dimension of the Galois field. It is shown that the resulting complexity of the analyzed character-by-character reception algorithm is determined by the dimension of the dual code, which determines the prospects of its application for block noise-resistant codes with a high code rate (with low redundancy)

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46

Righi, Mauro, Vassilios Pachidis, László Könözsy, Fanzhou Zhao, and Mehdi Vahdati. "Three-dimensional low-order surge model for high-speed axial compressors." Journal of the Global Power and Propulsion Society 4 (December 18, 2020): 274–84. http://dx.doi.org/10.33737/jgpps/130790.

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Surge in modern aero-engines can lead to violent disruption of the flow, damage to the blade structures and eventually engine shutdown. Knowledge of unsteady performance and loading during surge is crucial for compressor design, however, the understanding and prediction capability for this phenomenon is still very limited. While useful for the investigation of specific cases, costly experimental tests and high-fidelity CFD simulations cannot be used routinely in the design process of compressor systems. There is therefore an interest in developing a low-order model which can predict compressor

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47

Carter, S., J. M. Bowman, and B. J. Braams. "On using low-order Hermite interpolation in `direct dynamics' calculations of vibrational energies using the code `MULTIMODE'." Chemical Physics Letters 342, no. 5-6 (2001): 636–42. http://dx.doi.org/10.1016/s0009-2614(01)00656-x.

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48

Tang, Jun, Zhaocai Deng, Zhaokai Dang, and Chuanqing Li. "Fractional Low-Order Blind Equalization Algorithm Based On SAPSO Optimization under Impulsive Noise." Journal of Physics: Conference Series 2480, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1742-6596/2480/1/012021.

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Abstract To address the problem that the traditional constant mode blind equilibrium algorithm (CMA) cannot converge stably in a water channel under α-stable distributed noise, we propose a fractional low-order blind equilibrium algorithm (SAPSO-FLOSCMA) based on simulated annealing particle swarm algorithm optimization. The algorithm introduces a simulated annealing operation in the particle swarm algorithm (PSO) to make the population accept the difference solution with a certain probability of accepting the difference solution to enhance the ability of the PSO algorithm to jump out of the l

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49

Hussein, Yasmeen M., Basman M. Al-Nedawe, Ammar Hussein Mutlag, and Ameer K. Jawad. "Application of Error Correction Codes RS and LDPC to Enhance the Dicode Pulse Position Modulation." Journal of Hunan University Natural Sciences 49, no. 1 (2022): 161–69. http://dx.doi.org/10.55463/issn.1674-2974.49.1.21.

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Dicode Pulse Position Modulation (DiPPM) has been presented as a new coding technique with several improvements over earlier PPM formats. Few analyses and experimental results have been published because it is a new coding scheme. To overcome the problem of bandwidth utilization in current PPM formats, DiPPM can be employed. The line rate is twice as fast as the original data rate. In order to increase DiPPM's error performance, two types of Forward Error Correction (FEC) codes, Reed-Solomon (RS) code and low-density parity-check (LDPC) code, are investigated in this article. When RS and LDPC

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50

Brjuhanov, Jurij. "Quantization effects in digital first order recursive filters with values truncation." Izvestiya VUZ. Applied Nonlinear Dynamics 10, no. 6 (2003): 35–41. http://dx.doi.org/10.18500/0869-6632-2002-10-6-35-41.

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Free oscillation and oscillation under a constant level input signal in low-frequency and high-frequency filters are considered. We use fixed point numbers in additional code. The method of one-dimensional point mapping is applied. Dynamical regimes are characterized by probabilistic diagrams. Expressions for most probably oscillation in the filter’s output with arbitrary numbers of quantization levels are defined. Given methods may be used for quantization effects investigation in the first-order digital filters with representation of the numbers in direct, inverse and additional code with ro

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