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Cellular automata basedmulti-bit stuck-at fault diagnosis for resistive memory

Frontiers of Information Technology & Electronic Engineering 2022年第7期23卷 1110-1126页

作者： Sutapa SARKAR Biplab Kumar SIKDAR mousumi saha Department of Electronics and Communication Engineering Seacom Engineering CollegeHowrahWest Bengal 711302India Department of Computer Science and Technology Indian Institute of Engineering Science and TechnologyHowrahWest Bengal 711103India Department of Computer Science and Engineering National Institute of TechnologyDurgapurWest Bengal 713209India

This paper presents a group-based dynamic stuck-at fault diagnosis scheme intended for resistive randomaccess memory(ReRAM).Traditional static random-access memory,dynamic random-access memory,NAND,and NOR flash memory are limited by their scalability,power,package density,and so forth.Next-generation memory types like ReRAMs are considered to have various advantages such as high package density,non-volatility,scalability,and low power consumption,but cell reliability has been a problem.Unreliable memory operation is caused by permanent stuck-at faults due to extensive use of write-or memory-intensive workloads.An increased number of stuck-at faults also prematurely limit chip lifetime.Therefore,a cellular automaton(CA)based dynamic stuck-at fault-tolerant design is proposed here to combat unreliable cell functioning and variable cell lifetime issues.A scalable,block-level fault diagnosis and recovery scheme is introduced to ensure readable data despite multi-bit stuck-at faults.The scheme is a novel approach because its goal is to remove all the restrictions on the number and nature of stuck-at faults in general fault conditions.The proposed scheme is based on Wolfram’s null boundary and periodic boundary CA theory.Various special classes of CAs are introduced for 100%fault tolerance:single-lengthcycle single-attractor cellular automata(SACAs),single-length-cycle two-attractor cellular automata(TACAs),and single-length-cycle multiple-attractor cellular automata(MACAs).The target micro-architectural unit is designed with optimal space overhead.

关键词： Resistive memory Cell reliability Stuck-at fault diagnosis Single-length-cycle single-attractor cellular automata Single-length-cycle two-attractor cellular automata Single-length-cycle multiple-attractor cellular automata

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Detection of 232bp Virulent Gene of Pathogenic <i>Aeromonas hydrophila</i>through PCR Based Technique: (<i>A Rapid Molecular Diagnostic Approach</i>)

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Advances in Microbiology 2013年第1期3卷 83-87页

作者： Agniswar Sarkar mousumi saha Pranab Roy Department of Biotechnology Oriental Institute of Science and Technology Burdwan India Department of Biotechnology The University of Burdwan Burdwan India

The pathogenicity of aeromonads produces due to exotoxins such as cytolytic enterotoxin, hemolysin or aerolysin, lipases and proteases. Rapid detection of A. hydrophila cytolytic enterotoxin (AHCYTONE) gene and their characterization has proven importance so that proper and rapid preventive and control measures could be taken up to reduce mortality and loss in fish culture. The main objective of the present study is to genetic identification of AHCYTONE positive Aeromonas hydrophila. Strains were isolated from fishes from different fish market in West Bengal and water samples from different river and ponds. Initially strains were identified by their phenotypic and biochemical characterization. Due to contradiction of those results, molecular characterization was done by polymerase chain reaction, which is proved a suitable and rapid diagnostic tool for identification and characterization of A. hydrophila. We have also evaluated the potential risk to human health that this finding can represent by determining the presence of the cytolytic enterotoxin gene in such isolates.

关键词： Aeromonas Spp. Hemolysin Gene AHCYTONE Molecular Diagnosis PCR

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Characterization of Aeromonas hydrophila through RAPD-PCR and SDS-PAGE Analysis

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Open Journal of Medical Microbiology 2012年第2期2卷 37-40页

作者： Agniswar Sarkar mousumi saha Avijit Patra Pranab Roy Central Inland Fisheries Research Institute Barrackpore India Department of Biotechnology Oriental institute of Science and Technology Burdwan India Department of Biotechnology The University of Burdwan Burdwan India

Aeromonas hydrophila isolated from fish (Labeo rohita), pond water, river water, raw meat of chicken and mutton and raw cow milk were characterized through Random Amplified Polymorphic DNA (RAPD) analysis and Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS PAGE) of cellular proteins. RAPD-PCR amplification of bacterial DNA was done by using ten random primers (OPA-01 to 10) and found some distinct banding pattern on agarose gel. RAPD profile was studied with each isolate and absolute polymorphism indicating its application as an ideal tool for molecular characterization. Other methods like morphological, serological and biochemical characterization gives contradictory results and total cellular protein profiling does not show any significant polymorphism for identification and discrimination.

关键词： RAPD-PCR SDS-PAGE Aeromonas hydrophila Molecular Characterization

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The Dependency of Coastal Livelihood on Forest Resources, and Alternative Options in the Periphery of the Sundarbans Reserve Forest, Patharghata, Bangladesh

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Open Journal of Forestry 2021年第4期11卷 398-414页

作者： Abdul Alim Shaikh mousumi Halder Mohammad Badrul Alam Talukder Sk. Mohibullah Sanjoy saha Climate Change Program Christian Commission for Development in Bangladesh (CCDB) Dhaka Bangladesh Royal Danish Embassy Dhaka Bangladesh Institute for Integrated Studies on the Sundarbans and Coastal Ecosystems (IISSCE) Khulna University Khulna Bangladesh

Dependency on forest resources poses a threat to the environment in Patharghata, Bangladesh. Therefore, this study explores the role of forest resource in the life and livelihood of coastal people as well as to understand the effectiveness of forest and status of forest dependency in and around south-central coast in Patharghata, Bangladesh. We collected data randomly from 105 household heads through both open and close-ended questionnaire. To investigate the forest dependency and people’s perception regarding alternative solutions, Microsoft excel software program has been applied. The findings reveal that usage of fuelwood in cooking, housing structure, fish catching, honey & fodder collection significantly contributes to household dependency on forest resources, while other variables seem to be insignificant. Our study amplifies that the share of forest income to the total household income was only 19% while other earning sources provided 81% income. The result shows that respondent people collect forest resources primarily for cooking purpose with a share of 71% where 9% forest resources are collected as fodder followed by 8% forest resource collection as food and sheltering purposes. Moreover, the study found that using alternative cooking system, artificial instruments, declaring the forest as tourist spot, changes in housing structure, occupation are some effective options to reduce forest dependency. The study concludes that these alternative options need more financial and other support from the government, non-government and other civil society organizations to cut down forest resource dependency.

关键词： Forest Resource Dependency Biodiversity Conservation Sundarban Reserve Forest Coastal Livelihood

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