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NEHASH: high-concurrency extendible hashing for non-volatile memory Research Article

Qiankun WANG, Xingchen LI, Bingzhe WU, Ke YANG, Wei HU, Guangyu SUN, Yuchao YANG,gsun@pku.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 5, Pages 731-741 doi: 10.1631/FITEE.2200463

Abstract: The problem (COP), which aims to find the optimal solution in discrete space, is fundamental in various fields. Unfortunately, many COPs are NP-complete, and require much more time to solve as the problem scale increases. Troubled by this, researchers may prefer fast methods even if they are not exact, so approximation algorithms, heuristic algorithms, and machine learning have been proposed. Some works proposed (CSA) based on the Hopfield neural network and did a good job. However, CSA is not something that current general-purpose processors can handle easily, and there is no special hardware for it. To efficiently perform CSA, we propose a software and hardware co-design. In software, we quantize the weight and output using appropriate bit widths, and then modify the calculations that are not suitable for hardware implementation. In hardware, we design a specialized hardware architecture named COPPER based on the memristor. COPPER is capable of efficiently running the modified quantized CSA algorithm and supporting the pipeline further acceleration. The results show that COPPER can perform CSA remarkably well in both speed and energy.

Keywords： Combinatorial optimization Chaotic simulated annealing Processing-in-memory

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COPPER: a combinatorial optimization problem solver with processing-in-memory architecture Correspondence

Yitong YAO, Gang DONG, Zhangming ZHU, Yintang YANG,19111110564@stu.xidian.edu.cn,gdong@xidian.edu.cn,zhangmingzhu@xidian.edu.cn,ytyang@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 5, Pages 759-766 doi: 10.1631/FITEE.2200398

Abstract: We present a novel broadband circularly polarized (CP) antenna with filtering effect for X- and Ku-band satellite wireless communication. The structure comprises a driven layer (also a filtering layer) and a stacked layer (also a CP layer). The bandpass filtering response consists of two radiation nulls, which is the combined effect of a substrate integrated waveguide (SIW) cavity-backed aperture and embedded driven patch. The chamfered patch is introduced as the stacked component with the ability to achieve CP and widen the operating bandwidth. A prototype with a compact layout of 0.8λ×0.71λ×0.16λ is fabricated using a multilayer printed circuit board (PCB) process for demonstration. Experimental results are in good agreement with the simulation results, and show that the measured -10-dB impedance bandwidth and 3-dB axial ratio (AR) bandwidth are 10.83% and 15.54%, respectively. In addition, a peak gain of 8.9 dBic for left-hand circular polarization (LHCP), an average in-band gainLHCP > 7 dBic, and good frequency selectivity are obtained.

Keywords：圆极化；滤波效应；贴片天线；衬底集成波导

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& Research Article

Yitian YANG, Youyou LU,yangyiti22@mails.tsinghua.edu.cn,luyouyou@tsinghua.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 5, Pages 675-687 doi: 10.1631/FITEE.2200469

Abstract: end, the data in logs are fetched, processed, and patched to files in the background, leveraging the processing

Keywords： Non-volatile memory Persistent memory Data processing unit Smart network interface card (SmartNIC)

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A perceptual and predictive batch-processing memory scheduling strategy for a CPU-GPU heterogeneous system Research Article

Juan FANG, Sheng LIN, Huijing YANG, Yixiang XU, Xing SU,fangjuan@bjut.edu.cn,lins@emails.bjut.edu.cn,yangkx@emails.bjut.edu.cn,xuyx@emails.bjut.edu.cn,suxing@bjut.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 7, Pages 994-1006 doi: 10.1631/FITEE.2200449

Abstract: When multiple central processing unit (CPU) cores and integrated graphics processing units (GPUs) shareoff-chip main memory, CPU and GPU applications compete for the critical memory resource.We describe the competition for shared-memory resources in a architecture, and a shared-memory requestscheduling strategy based on perceptual and predictive batch-processing is proposed.CPU or GPU memory requests in batches.

Keywords： CPU-GPU heterogeneous Multi-core Unified memory Access scheduling

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An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 466-477 doi: 10.1007/s11709-015-0300-3

Abstract: Thermo-mechanical coupling in shape memory alloys is a very complicated phenomenon.temperature-dependent variation of its mechanical behavior in the forms of superelasticity and shape memoryproposed based on the original model of Lagoudas to efficiently model both superelasticity and shape memory

Keywords： shape memory alloy thermo-mechanical coupling superplasticity shape memory effect

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Application of metal magnetic memory test in failure analysis and safety evaluation of vessels

Yiliang ZHANG, Song YANG, Xuedong XU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1, Pages 40-48 doi: 10.1007/s11465-009-0003-3

Abstract: Metal magnetic memory test (MMMT), which is a new subject in the field of nondestructive examination,

Keywords： Metal magnetic memory test (MMMT) nondestructive testing (NDT) residual stress propylene purifier ammonia

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Hyperglycemic memory in diabetic cardiomyopathy

Frontiers of Medicine 2022, Volume 16, Issue 1, Pages 25-38 doi: 10.1007/s11684-021-0881-2

Abstract: This process is now referred to as hyperglycemic memory (HGM) phenomenon.

Keywords： diabetes diabetic cardiomyopathy hyperglycemic memory

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4, Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: study is to analytically investigate temperature effects of an axial-type seismic damper made of shape memory

Keywords： damage control design shape memory alloy temperature effect

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A novel shape memory alloy actuated soft gripper imitated hand behavior

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0700-8

Abstract: The limited length shrinkage of shape memory alloy (SMA) wire seriously limits the motion range of SMA-based

Keywords： shape memory alloy (SMA) pre bent wire gripper grasping mode lightweight

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A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys

Frontiers in Energy 2023, Volume 17, Issue 4, Pages 504-515 doi: 10.1007/s11708-022-0855-3

Abstract: As a solid-solid phase change material, shape-memory alloys (SMAs) have the inherent advantages of leakageConsidering these characteristics, the design of the shape-memory alloy based the cold thermal energysystem for precooling car seat application is introduced in this paper based on the proposed shape-memoryThe influence of initial temperature, elastocaloric materials, and the shape-memory alloy geometry schemestorage materials, hopefully the proposed concept can promote the development of more promising shape-memory

Keywords： shape-memory alloy (SMA) elastocaloric effect (eCE) cooled seat cold thermal energy storage

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Improvement of impact resistance of plain-woven composite by embedding superelastic shape memory alloy

Xiaojun GU, Xiuzhong SU, Jun WANG, Yingjie XU, Jihong ZHU, Weihong ZHANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4, Pages 547-557 doi: 10.1007/s11465-020-0595-1

Abstract: this limitation, this study presents a new plain-woven CFRP composite embedded with superelastic shape memory

Keywords： carbon fiber reinforced polymer composite shape memory alloy wire impact resistance drop-weight test

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Anovel non-volatile memory storage system for I/O-intensive applications None

Wen-bing HAN, Xiao-gang CHEN, Shun-fen LI, Ge-zi LI, Zhi-tang SONG, Da-gang LI, Shi-yan CHEN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1291-1302 doi: 10.1631/FITEE.1700061

Abstract:

The emerging memory technologies, such as phase change memory (PCM), provide chances for highperformanceIt consists of the in-storage processing enabled file system (ISPFS) and the configurable parallel computationfabric in storage, which is called an in-storage processing (ISP) engine.On one hand, ISPFS takes full advantage of non-volatile memory (NVM)’s characteristics, and reduces software

Keywords： In-storage processing File system Non-volatile memory (NVM) Storage system I/O-intensive applications

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A decomposition approach to the design of a multiferroic memory bit

Ruben ACEVEDO, Cheng-Yen LIANG, Gregory P. CARMAN, Abdon E. SEPULVEDA

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2, Pages 215-223 doi: 10.1007/s11465-017-0446-x

Abstract:

The objective of this paper is to present a methodology for the design of a memory bit to minimizesubstrate, its magnetization vector rotates between two stable states defined as a 1 and 0 for digital memoryThe memory bit geometry, actuation mechanism and voltage control law were used as design variables.

Keywords： multiferroics nano memory piezoelectric optimization

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In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1730-0

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Review on flexible perovskite photodetector: processing and applications

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0749-z

Abstract: optical and electrical properties, remarkable mechanical flexibility, low-cost and low-temperature processingphotodetectors, strategies for device performance enhancement, few can be seen with a focus on the processingEmphatically, processing strategies for photodetectors are presented following, including flexible substrates

Keywords： photodetector perovskite flexible processing application

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Title Author Date Type Operation

NEHASH: high-concurrency extendible hashing for non-volatile memory

Qiankun WANG, Xingchen LI, Bingzhe WU, Ke YANG, Wei HU, Guangyu SUN, Yuchao YANG,gsun@pku.edu.cn

Journal Article

COPPER: a combinatorial optimization problem solver with processing-in-memory architecture

Yitong YAO, Gang DONG, Zhangming ZHU, Yintang YANG,19111110564@stu.xidian.edu.cn,gdong@xidian.edu.cn,zhangmingzhu@xidian.edu.cn,ytyang@xidian.edu.cn

Journal Article

Yitian YANG, Youyou LU,yangyiti22@mails.tsinghua.edu.cn,luyouyou@tsinghua.edu.cn

Journal Article

A perceptual and predictive batch-processing memory scheduling strategy for a CPU-GPU heterogeneous system

Juan FANG, Sheng LIN, Huijing YANG, Yixiang XU, Xing SU,fangjuan@bjut.edu.cn,lins@emails.bjut.edu.cn,yangkx@emails.bjut.edu.cn,xuyx@emails.bjut.edu.cn,suxing@bjut.edu.cn

Journal Article

An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Journal Article

Application of metal magnetic memory test in failure analysis and safety evaluation of vessels

Yiliang ZHANG, Song YANG, Xuedong XU

Journal Article

Hyperglycemic memory in diabetic cardiomyopathy

Journal Article

Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Journal Article