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High-speed and low-power FeRAM utilising merged BL/PL array architecture with twin-bitline-driven scheme

ELECTRONICS LETTERS 2009年第12期45卷 610-611页

作者： Zhang, G. Jia, Z. Ren, T. Chen, H. Tsinghua Univ Inst Microelect Tsinghua Natl Lab Informat Sci & Technol Beijing 100084 Peoples R China

A novel design method for nonvolatile ferroelectric random access memory (FeRAM) using a merged bitline(BL)/plateline(PL) array architecture with a twin bitline-driven scheme is proposed. This method is effective in improving the FeRAM performance and reduces the power consumption. A 128 Kbit FeRAM prototype applying the proposed circuitry is implemented. The chip size, access time and memory array power dissipation are reduced to about 87, 44 and 15.8%, respectively, in comparison with those of conventional FeRAM.

关键词： Scheme Power consumption design approach Ferroelectric RAM array structure

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SYSTOLIC array ARCHITECTURE FOR GABOR DECOMPOSITION

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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1995年第4期5卷 355-359页

作者： IYENGAR, G PANCHANATHAN, S UNIV OTTAWA DEPT ELECT ENGNMULTIMEDIA COMMUN RES LABOTTAWAON K1N 6N5CANADA

In this brief, we propose a combined systolic array-content addressable memory architecture for real-time Gabor decomposition. We then present codec designs for Progressive Image Transmission using this architecture. Gabor decomposition is attractive for image compression since the basis functions match the human visual profiles, Gabor functions also achieve the lowest bound on the joint uncertainty of data, However these functions are not orthogonal and hence an analytic solution for the decomposition does not exist, Recently it has been shown that Gabor decomposition can be computed as a multiplication between a transform matrix and a vector of image data. For an n x n image, the proposed architecture for Gabor decomposition consists of a linear systolic array of n processing elements each with a local CAM, Simulations and complexity studies show that this architecture can achieve real-time performance with current VLSI technology.

关键词： codecs Building construction ARCHITECTURE image data transformation matrix Image communication systems Data compression basis functions Systolic algorithms Image compression array structure

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A DISCRETE FOURIER-TRANSFORM USING SWITCHED CAPACITOR CIRCUITS IN SYSTOLIC array ARCHITECTURE

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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS 1990年第12期37卷 1578-1580页

作者： RAUT, R BHATTACHARYYA, BB FARUQUE, SM Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

Basic SC building blocks are introduced and interconnection of these blocks in a systolic array architecture is shown to yield the desired DFT components. Simulation results using implementation on a workstation and S... 详细信息

关键词： Switched capacitor circuits ARCHITECTURE Systolic algorithms Workstations Building construction Fourier Transform array structure

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AN array ARCHITECTURE FOR FAST COMPUTATION OF DISCRETE HARTLEY TRANSFORM

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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS 1991年第9期38卷 1095-1098页

作者： DHAR, AS BANERJEE, S Department of Electronics and Electrical Communication Engineering Indian Institute of Technology Kharagpur India

Fast computation of DHT may be performed by employing a set of linear arrays of Givens rotors. It is shown that the interconnections between the linear arrays can be realized in a regular pattern governed by a permutation cycle involving a primitive root of the transform length. A suitable implementation to the Givens rotor with add/subtract units and hard-wired shifters is also suggested.

关键词： Fasting Hartley transform discrete Hartley transforms linear arrays array structure hardwired

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Blackbody-Inspired array Structural Polypyrrole-Sunflower Disc with Extremely High Light Absorption for Efficient Photothermal Evaporation

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ACS APPLIED MATERIALS & INTERFACES 2020年第41期12卷 46653-46660页

作者： Chen, Yali Zhao, Guomeng Ren, Lipei Yang, Hongjun Xiao, Xingfang Xu, Weilin Wuhan Text Univ State Key Lab New Text Mat & Adv Proc Technol Wuhan 430200 Peoples R China Wuhan Text Univ Sch Text Sci & Engn Wuhan 430200 Peoples R China

The three-dimensional (3D) structural design of solar evaporators has been considered as one of the most promising approaches toward enhancing photothermal performance by improving light absorption and the available evaporation area. Herein, polypyrrole-decorated 3D array structural sunflower discs (PPy-SFD) were prepared for solar steam generation, thereby turning SFD biomass waste into valuable materials. The SFD can absorb a majority of the incident light because of numerous light reflections from each natural 3D array structural unit, and therefore behaves similar to a blackbody. Moreover, a facile pyrrole polymerization method was introduced to further improve SFD light absorption and enhance the photothermal performance of SFD. This circumvents expensive consumption fabrication processes. The black PPy-decorated SFD shows a light absorption of 99.3% across the entire solar spectrum coupled with mechanical stability. During photothermal evaporation, the increased evaporation area of the 3D array structural SFD could effectively reduce heat loss to the environment because the inherent microporous structure of the SFD leaves and cellulose hydrophilicity provide channels for water transport. The PPy-SFD-based evaporator could reach an evaporation rate of 1.74 kg m(-1) h(-1) under 1 sun. Thus, the 3D array structural PPy-SFD is a possible candidate for high-efficiency photothermal evaporators.

关键词： blackbody sunflower disc polypyrrole array structure solar steam generation

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DESIGN AND EXPERIMENT OF array-BASED FINGERPLATE DIFFERENTIAL FLOW SENSOR FOR RICE GRAIN MONITORING

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INMATEH-AGRICULTURAL ENGINEERING 2024年第3期74卷 358-369页

作者： Li, Qibin Yu, Yang Guo, Gang Hu, Jinpeng Liu, Peng Chai, Xiaoyu Wang, Yingfeng Xu, Lizhang Jiangsu Univ Coll Agr Engn Zhenjiang 212013 Jiangsu Peoples R China Zooml Heavy Ind Sci & Technol Co Ltd Changsha 410013 Peoples R China

Most existing grain flow sensors are designed for paddle-type elevators, with limited focus on applications in auger elevators. This paper addresses the yield monitoring needs during rice harvesting operations, specifically targeting auger-based outlets through experimental research. An array- type differential grain flow sensor was developed and an indoor test bench was constructed to evaluate its performance. The study compares the effectiveness of time-domain and frequency-domain differential processing, alongside various filtering methods, for pre-processing the sensor's raw signals. Additionally, a grain flow regression model was built using the Random Forest algorithm. Experimental results demonstrated that the monitoring errors during field tests ranged from - 6.42% to 8.23%, indicating that the sensor met the requirements for rice yield monitoring. This sensor provides valuable data for feed rate detection, speed regulation, and adjustments to the threshing and cleaning systems in combine harvesters, offering significant practical implications for the promotion and development of precision agriculture.

关键词： Grain Flow Sensor Auger elevators array structure Dual Plate Differential Random Forest

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array designs for active electrically small superconductive antennas

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PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2012年 479卷 119-122页

作者： Kornev, Victor Soloviev, Igor Klenov, Nikolai Sharafiev, Alexey Mukhanov, Oleg Moscow MV Lomonosov State Univ Dept Phys Moscow 119991 Russia Moscow MV Lomonosov State Univ Skobeltsyn Inst Nucl Phys Moscow 119991 Russia Hypres Inc Elmsford NY 10523 USA

Active electrically small superconductive antennas based on serial arrays of the cells capable of providing highly linear voltage response to magnetic signal were proposed and developed. Two different basic cells were devised. The first one is bi-SQUID, and the second one is the cell consisting of two parallel SQIFs connected in differential way. The antenna prototypes were designed, fabricated and evaluated. The mostly efficient antenna prototype occupied area of 3.3 mm x 3.3 mm was characterized by the transfer factor dV/dB of about 750 mV/mT and the transfer function linearity up to 70 dB. (C) 2012 Elsevier B.V. All rights reserved.

关键词： Josephson junction Dc SQUID array structure Dynamic range Linear voltage response Bi-SQUID

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VORTEX INTENSIFICATION OF A TRIBOELECTRIC NANOGENERATOR array FOR WATER ENERGY HARVESTING 16

VORTEX INTENSIFICATION OF A TRIBOELECTRIC NANOGENERATOR ARRA...

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ASME 16th Annual Conference of the Smart Materials, Adaptive structures and Intelligent Systems (SMASIS)

作者： Li, Zhongjie Wang, Chenyu Gong, Ying Zhou, Yuan Wang, Biao Shanghai Univ Sch Mechatron Engn & Automat Shanghai Peoples R China Shanghai Univ Inst Artificial Intelligence Sch Future Technol Shanghai Peoples R China Shanghai Univ Engn Res Ctr Unmanned Intelligent Marine Equipmen Shanghai Peoples R China

ISBN: (纸本)9780791887523

As a promising renewable energy source in nature, water wave energy in oceans is abundant but hard to scavenge. Toward harvesting water wave energy efficiently, this paper reports a cylinder array structure with triboelectric nanogenerators for any position. Each array element is composed of a cylinder, a cantilever beam, and an energy conversion unit. When the cylinder is in water flow field, the vortex shedding occurs, leading to vibration of the cylinder. The vibration is amplified by the cantilever and transferred to the energy conversion unit. The relative motion of a sliding block along a guide rail to the frame of a case in the energy conversion unit achieves energy harvesting via triboelectric effect. With an appropriate arrangement of the array, vortex resonance occurs in the device and the vortex intensification effect shredded from the upstream cylinder elicits the resonance of the downstream cylinders to a higher degree. The finite element analysis is conducted to explain the vortex resonance and vortex intensification effect for the device. Besides, the influence diameters of the cylinder, the array arrangement and water flow speed on the displacement response and converted power for the structure is elaborately elucidated. Compared to the single cylinder, the upstream wake flow intensification effect increases the converted power of downstream cylinder in 6-2 array up to 2.6 W (163% higher) at the flow speed of 0.6 m/s. This work provides a novel angle for vortex-induced vibration energy harvesting based on array-type triboelectric nanogenerators.

关键词： Wave energy harvesting Triboelectric nanogenerator Vortex induced vibration array structure

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HerpRap: A Hybrid array Architecture Providing Any Point-in-time Data Tracking for Datacenter

HerpRap: A Hybrid Array Architecture Providing Any Point-in-...

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IEEE International Conference on Cluster Computing

作者： Zeng, Lingfang Feng, Dan Mao, Bo Chen, Jianxi Wei, Qingsong Liu, Wenguo Huazhong Univ Sci & Technol Sch Comp Wuhan 430074 Peoples R China Wuhan Natl Lab Optoelectron Wuhan Peoples R China Univ Nebraska Lincoln Lincoln NE 68588 USA ASTAR Data Storage Inst Singapore 117608 Singapore

ISBN: (纸本)9781467324229

Both physical disk failure and logical errors such as software error, user abuse and virus attacks may cause data lose. The risk of logical errors is far greater than physical disk failure. Moreover, existing RAID solution cannot satisfy the reliability requirement in face of the logical errors in datacenters. It is therefore becoming increasingly important for RAID-based storage systems to be able to recover data to any point-in-time when logical errors occur. We proposed a novel storage array architecture, HerpRap, which is able to recover data from both physical disk failure and logical errors. We have implemented a prototype of HerpRap and carried out extensive performance measurements using DBT-2 and file system benchmarks. Our experiments demonstrated that the proposed HerpRap is able to track or recover data to any point-in-time quickly by tracing back the history of block logs. Moreover, HerpRap outperforms existing HDD-based or SSD-based RAID5 with copy-on-write (COW) snapshot in terms of performance, energy efficiency, failure recovery ability and reliability.

关键词： disk failure data center array structure logical File systems Cache Memory System

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Newly developed Test-Element-Group for detecting soft failures of the low-resistance-element using doubly nesting array

Newly developed Test-Element-Group for detecting soft failur...

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26th IEEE International Conference on Microelectronic Test structures (ICMTS)

作者： Sato, Shingo Shinkawata, Hiroki Tsuda, Atsushi Yoshizawa, Tomoaki Ohno, Takio Renesas Technol Corp Devices & Anal Technol Div Prod & Technol Unit Itami Hyogo 6640005 Japan

We report newly developed Test-Element-Group for detecting soft failures of low-resistance-element like interconnect via using doubly nesting array. We detected the soft failure of fine via which resistance had about ... 详细信息

ISBN: (纸本)9781467348485;9781467348454

关键词： soft failure Back End Of Line interconnect via array structure variability yield

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