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SA-RSR: a read-optimal data recovery strategy for XOR-coded distributed storage systems Research Articles

Xingjun ZHANG, Ningjing LIANG, Yunfei LIU, Changjiang ZHANG, Yang LI

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6,   Pages 858-875 doi: 10.1631/FITEE.2100242

Abstract: Erasure coding, one of the representative redundancy strategies, has the advantage of low storage overheadAmong the various erasure coding schemes, are becoming popular due to their high computing speed.

Keywords： Distributed storage system     Data reliability and availability     XOR-based erasure codes     Single-node failure    

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Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 210-216 doi: 10.1007/s11709-012-0165-7

Abstract: A uniaxial tension test is commonly used to determine the mechanical properties of steel, but it has no meaning for the response of the material in a structure. The test was developed as a consensus solution by producers, fabricators, designers and code writers, to have a standard by which similar materials could be compared to a common base. It does not represent the actual behavior of the steel in a structure, and was never intended to do so. To study the true behavior of the structure and how the material responds it would be better to determine the strains and deformations that will take place during actual service condition. Such characteristics reflect the real behavior, whether in the elastic or inelastic range. If stresses or forces are needed, these are easily determined by the value of the strain and the relevant material modulus, along with the type of cross section, whether elastic or inelastic. The paper addresses the properties of a range of structural steels, how these are incorporated into design standards and how the standards define deformation characteristics and demands for bolted and welded connections.

Keywords： steel     stress-strain characteristics     tension test     strain design     actual behavior     improved design codes    

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Empirical models and design codes in prediction of modulus of elasticity of concrete

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 38-48 doi: 10.1007/s11709-018-0479-1

Abstract: Out of range estimation of MOE in the existing codes of practice strongly affect the design and performance

Keywords： modulus of elasticity     normal strength normal weight concrete     empirical models     design codes     compressive    

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ShortTail: taming tail latency for erasure-code-based in-memory systems Research Article

Yun TENG, Zhiyue LI, Jing HUANG, Guangyan ZHANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11,   Pages 1646-1657 doi: 10.1631/FITEE.2100566

Abstract:

s with erasure coding (EC) enabled are widely used to achieve high performance and data availabilityThe influence of long is further amplified in EC-based systems due to the synchronous nature of multiple

Keywords： Erasure code     In-memory system     Node fail-slow     Small write     Tail latency    

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Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 402-410 doi: 10.1007/s11709-013-0230-x

Abstract: This paper reviews wind loading codes and standards in the Asia-Pacific Region, in particular in the

Keywords： wind loading     codification     velocity pressure     exposure factor     pressure coefficient     gust response factor    

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Areliable and energy-efficient storage systemwith erasure coding cache Article

Ji-guang WAN, Da-ping LI, Xiao-yang QU, Chao YIN, Jun WANG, Chang-sheng XIE

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1370-1384 doi: 10.1631/FITEE.1600972

Abstract: this paper, we developa high-reliability and energy-efficient replication storage system,named RERAID, basedRERAID employs part of the free spacein the primary disk group and uses erasure coding to construct aSince code cache supportsfailure recovery of two or more disks by using erasure coding, RERAIDguaranteesIn addition, we develop an algorithm, called erasure codingwrite (ECW), to buffer many small random writes

Keywords： Reliability     Energy-efficient     Storage system     Erasure coding     Cache management    

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ApipelinedReed-Solomon decoder based on a modified step-by-step algorithm Article

Xing-ru PENG,Wei ZHANG,Yan-yan LIU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 954-961 doi: 10.1631/FITEE.1500303

Abstract: Consequently, for RS(23,17) codes, the proposed architecture requires 42.5% and 24.4% less area compared

Keywords： Reed-Solomon codes     Step-by-step algorithm     Ultra-wideband     Pipelined structure    

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Experience gained in analyzing severe accidents for WWER RP using CC SOCRAT

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 872-886 doi: 10.1007/s11708-021-0796-2

Abstract: The system of codes for realistic analysis of severe accidents (SOCRAT) (formerly, thermohydraulics (To perform analyses using CC SOCRAT/1, the experience gained during execution of thermohydraulic codes

Keywords： system of codes for realistic analysis of severe accidents (SOCRAT)     design basis accidents (DBAs)     severe    

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Performance Optimization Analysis of 2D - OOSC Codeword for OCDMA System

Li Chuanqi,Sun Xiaohan,Zhang Mingde,Ding Dong

Strategic Study of CAE 2003, Volume 5, Issue 4,   Pages 50-54

Abstract:

The scheme of 2-dimensions optical orthogonal square codes (2D - OOSC) in optical code-division multiple-accessis proved that the relativity of the codeword satisfies the system requirement, and the system BER based

Keywords： optical code division multiple access (OCDMA)     2-dimensions optical orthogonal square codes (2D-OOSC)     multi-users interfering (MUI)     based bit-error-ratio (BER)    

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State-of-the-art on resistance of bearing-type bolted connections in high strength steel

Guoqiang LI, Yifan LYU, Yanbo WANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 569-585 doi: 10.1007/s11709-020-0607-6

Abstract: The current codes for design of bearing-type bolted connections of steel constructions were establishedbased on the research of conventional steels.The comparison with existing design codes shows that Eurocode3 and Chinese GB50017-2017 are conservative

Keywords： High strength steel     bolted connection     bearing behavior     design codes    

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Investigation on modeling parameters of concrete beams reinforced with basalt FRP bars

Jordan CARTER, Aikaterini S. GENIKOMSOU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1520-1530 doi: 10.1007/s11709-019-0580-0

Abstract: Fiber-reinforced polymer (FRP) bars are widely used as internal reinforcement replacing the conventional steel bars to prevent from corrosion. Among the different types of FRP bars, basalt FRP (BFRP) bars have been used in different structural applications and, herein, three already tested concrete beams reinforced with BFRP bars are analyzed using three-dimensional (3-D) finite element analysis (FEA). The beams were tested in four-point bending. In the FEA the behavior of concrete is simulated using the “Concrete-Damaged Plasticity” model offered in ABAQUS software. The research presented here presents a calibrated model for nonlinear FEA of BFRP concrete beams to predict their response considering both the accuracy and the computational efficiency. The calibration process showed that the concrete model should be regularized using a mesh-dependent characteristic length and material-dependent post-yield fracture and crushing energies to provide accurate mesh-size independent results. FEA results were compared to the test results with regard to failure load and crack patterns. Both test the results and the numerical results were compared to the design predictions of ACI 440.1R-15 and CSA S806-12, where CSA S806-12 seems to overestimate the shear strength for two beams.

Keywords： Fiber-reinforced polymer bars     reinforced concrete beams     finite element analysis     damaged plasticity model     design codes    

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Designing Space-time Trellis Codes in Flat Fast Fading Channels With Large Number of Antennas

Geng Jia,Cao Xiuying,Bi Guangguo

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 48-54

Abstract:

In recent years space-time trellis codes (STTCs) have attracted a great amount of research interestIn flat fast fading channels, when the number of antennas is large, the space-time trellis codes designcriterion, which is based on maximizing the minimum squared Euclidean distance, is better than the traditionalare also obtained, which are the best codes known.Finally the improved criterion is introduced into the design of smart-greedy codes.

Keywords： space-time trellis code     criterion     flat fast fading     distance     distribution    

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Impact of Polarization Mode Dispersion on High-Speed Optical Codes

Rao Min,Sun Xiaohan,Zhang Mingde

Strategic Study of CAE 2002, Volume 4, Issue 11,   Pages 67-70

Abstract: the nonreturn-to-zero (NRZ) and return-to-zero (RZ) pulses distortion and the system's Q-factor based

Keywords： polarization mode dispersion (PMD)     non-return-to-zero (NRZ)     return-to-zero (RZ)     frequency chirp    

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A prototype online database-enabled design framework for wind analysis/design of low-rise buildings

Dae Kun KWON,Ahsan KAREEM,Deepak KUMAR,Yukio TAMURA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 121-130 doi: 10.1007/s11709-015-0329-3

Abstract: code-specified load effects in which the overall accuracy may be influenced by the inherent simplifications in codesaddition, this new automated approach is particularly attractive and advantageous as it allows a web-basedinput and output in terms of familiar web-style forms that are nowadays very common in most of web-based

Keywords： loads     low-rise building     pressure measurement     aerodynamics     building design     structural response     building codes    

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An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 511-518 doi: 10.1631/FITEE.1400269

Abstract: improved low-complexity sum-product decoding algorithm is presented for low-density parity-check (LDPC) codes

Keywords： Computational complexity     Coding gain     Fast Fourier transform (FFT)     Low-density parity-check (LDPC) codes    

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Title Author Date Type Operation

SA-RSR: a read-optimal data recovery strategy for XOR-coded distributed storage systems

Xingjun ZHANG, Ningjing LIANG, Yunfei LIU, Changjiang ZHANG, Yang LI

Journal Article

Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Journal Article

Empirical models and design codes in prediction of modulus of elasticity of concrete

Behnam VAKHSHOURI, Shami NEJADI

Journal Article

ShortTail: taming tail latency for erasure-code-based in-memory systems

Yun TENG, Zhiyue LI, Jing HUANG, Guangyan ZHANG

Journal Article

Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Journal Article

Areliable and energy-efficient storage systemwith erasure coding cache

Ji-guang WAN, Da-ping LI, Xiao-yang QU, Chao YIN, Jun WANG, Chang-sheng XIE

Journal Article

ApipelinedReed-Solomon decoder based on a modified step-by-step algorithm

Xing-ru PENG,Wei ZHANG,Yan-yan LIU

Journal Article

Experience gained in analyzing severe accidents for WWER RP using CC SOCRAT

Journal Article

Performance Optimization Analysis of 2D - OOSC Codeword for OCDMA System

Li Chuanqi,Sun Xiaohan,Zhang Mingde,Ding Dong

Journal Article

State-of-the-art on resistance of bearing-type bolted connections in high strength steel

Guoqiang LI, Yifan LYU, Yanbo WANG

Journal Article

Investigation on modeling parameters of concrete beams reinforced with basalt FRP bars

Jordan CARTER, Aikaterini S. GENIKOMSOU

Journal Article

Designing Space-time Trellis Codes in Flat Fast Fading Channels With Large Number of Antennas

Geng Jia,Cao Xiuying,Bi Guangguo

Journal Article

Impact of Polarization Mode Dispersion on High-Speed Optical Codes

Rao Min,Sun Xiaohan,Zhang Mingde

Journal Article

A prototype online database-enabled design framework for wind analysis/design of low-rise buildings

Dae Kun KWON,Ahsan KAREEM,Deepak KUMAR,Yukio TAMURA

Journal Article

An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Journal Article