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Dynamic Signature Verification Using Pattern Recognition

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Journal of Software Engineering and Applications 2024年第5期17卷 214-227页

作者： Emmanuel Nwabueze Ekwonwune Duroha Austin Ekekwe Chinyere Iheakachi Ubochi henry Chinedu Oleribe Department of Computer Science Imo State University Owerri Nigeria Department of Computer Science Gregory University Abia Nigeria ICT Department Alvan Ikoku University of Education Owerri Nigeria

Dynamic signature is a biometric modality that recognizes an individual’s anatomic and behavioural characteristics when signing their name. The rampant case of signature falsification (Identity Theft) was the key motivating factor for embarking on this study. This study was necessitated by the damages and dangers posed by signature forgery coupled with the intractable nature of the problem. The aim and objectives of this study is to design a proactive and responsive system that could compare two signature samples and detect the correct signature against the forged one. Dynamic Signature verification is an important biometric technique that aims to detect whether a given signature is genuine or forged. In this research work, Convolutional Neural Networks (CNNsor ConvNet) which is a class of deep, feed forward artificial neural networks that has successfully been applied to analysing visual imagery was used to train the model. The signature images are stored in a file directory structure which the Keras Python library can work with. Then the CNN was implemented in python using the Keras with the TensorFlow backend to learn the patterns associated with the signature. The result showed that for the same CNNs-based network experimental result of average accuracy, the larger the training dataset, the higher the test accuracy. However, when the training dataset are insufficient, better results can be obtained. The paper concluded that by training datasets using CNNs network, 98% accuracy in the result was recorded, in the experimental part, the model achieved a high degree of accuracy in the classification of the biometric parameters used.

关键词： Verification Security Biometrics Signature Authentication Model Pattern Recognition Dynamic

Genomic Profile of SARS-COV-2 Associated with COVID-19 Outbreaks in N’Djamena, Chad

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Advances in Bioscience and Biotechnology 2024年第7期15卷 432-442页

作者： Mathieu Hota henry Yandai Fissou Dezoumbe Koutaya Djallaye Djimtoïbaye Mahamat Moussa Ali cole Doctorale Sciences Techniques et Environnement Universit de NDjamena NDjamena Tchad Institut de Recherche en Elevage pour le Dveloppement NDjamena Tchad Laboratoire des Grandes pidmies Tropicales du CHU le Bon Samaritain NDjamena Tchad Facult des Sciences de la Sant Humaine (FSSH) Universit de NDjamena NDjamena Tchad

Background: SARS-CoV-2 has circulated worldwide with dramatic consequences. In Chad, we have no data reported of variants. The aim of this study was to identify the SARS-CoV-2 variants that circulated during the epidemic from 2020 to 2021. Methods: This is a cross-sectional, descriptive study carried out between 2020 and 2021. Samples from patients with suspected COVID-19 were tested in five laboratories in N’Djamena. One hundred quality samples of the positives were sequenced in Kinshasa using Oxford nanopore technologies minion and the Protocol Midnight SARS-CoV2. Data were processed using Excel version 16 software. Results: Of the 100 samples sequenced, 77 (77%) produced sequences, 23 (23%) did not. The genomic profiles were wild-type Wuhan and minor mutations (19A, 19B (A), 20A (B.1, B.2), 20B (AV.1), 20D (B.1.1.1 /C.36), 20C), variant of concern Alpha (20I), variant of concern Delta (21A/J), variant of interest Eta (21D), variant of concern Omicron (21K) and unclassified variant under surveillance (B.1.640). Of these variants, the maximums were detected in patients aged 26 - 35 with 30.26% and 25.26% in 36 - 45. However, 24.67% were in travelers and 75.32% in residents, 35.06% in those vaccinated against COVID-19 and 62.33% in non-vaccinates. The estimated case-fatality rate was 2.44% (107/4374). Conclusion: This work has provided preliminary data on COVID-19 and SARS-CoV-2 variants circulating during the 2020-2021 epidemics in Chad.

关键词： COVID-19 SARS-CoV-2 Genomic Profile Variant Chad

不同微区分析方法在2205不锈钢固液界面偏析中的应用

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热加工工艺 2024年

作者：张洪瑞侯智伦汪国祥 Hu henry 陈湘茹翟启杰上海大学材料科学与工程学院先进凝固技术中心泰州鑫宇精工股份有限公司加拿大温莎大学机械汽车材料系

2205不锈钢作为第二代不锈钢已被广泛应用于耐蚀性高的石油管道、海洋平台等工业领域。定向凝固能够揭示不锈钢的凝固过程，并为研究凝固过程中溶质偏析提供基础。微区分析方法的种类可分为波谱及能谱两类，本文分别以电子探针（EPMA）... 详细信息

2205不锈钢作为第二代不锈钢已被广泛应用于耐蚀性高的石油管道、海洋平台等工业领域。定向凝固能够揭示不锈钢的凝固过程，并为研究凝固过程中溶质偏析提供基础。微区分析方法的种类可分为波谱及能谱两类，本文分别以电子探针（EPMA）配备的波谱仪（WDS）及能谱仪（EDS）对2205不锈钢材料固液界面的溶质偏析进行分析及对比，以研究不同仪器对于微观溶质偏析结果准确性的差异。结果表明，相对于能谱仪，电子探针配备的波谱仪能够更加直观地反映出固液界面元素的变化规律，其测定结果具有更高的精确性。

关键词： 2205不锈钢电子探针能谱波谱元素偏析

A One Health approach to fight antimicrobial resistance in Uganda: Implementation experience, results, and lessons learned

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Biosafety and Health 2024年第2期6卷 125-132页

作者： Reuben Kiggundu J.P.Waswa Niranjan Konduri Hassan Kasuja Marion Murungi Patrick Vudriko Harriet Akello Eric Lugada Cecilia Muiva Esther Were Dinah Tjipura henry Kajumbula Kate Kikule Emmanuel Nfor Mohan P.Joshi USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthKampala 256Uganda USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthArlingtonVA 22203USA College of Veterinary Medicine Animal Resources and BiosecurityMakerere UniversityKampala 256Uganda Ministry of Health Uganda Kampala 256Uganda USAID Strengthening Supply Chain Systems activity Management Sciences for HealthKampala 256Uganda USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthNairobi 254Kenya Department of Microbiology College of Health SciencesMakerere UniversityKampala 256Uganda

Uganda has been implementing the Global Health Security Agenda(GHSA)since 2015 to build its capacity according to World Health Organization(WHO)Benchmarks on International Health Regulations *** country remains prone to outbreaks,with more than 20 disease outbreaks reported in the past five years,including Ebola virus disease,Crimean-Congo haemorrhagic fever,Marburg haemorrhagic fever,measles,yellow fever,coronavirus disease 2019(COVID-19),and *** resistance(AMR)is an ongoing *** scored capacity level 3 on infection prevention and control(IPC)and antimicrobial stewardship(AMS)in the 2017 Joint External Evaluation(JEE)*** gaps were being addressed after a self-assessment in *** paper describes the technical assistance approaches provided to Uganda by the Medicines,Technologies,and Pharmaceutical Services Program,funded by the United States(U.S.)Agency for International Development,and implemented by Management Sciences for *** program,through a One Health approach,supported systematic capacity strengthening based on the JEE's capacity advancement framework for global health security,specifically relating to *** program's interventions impacted 32 WHO benchmark actions(7 for AMR multisectoral coordination,16 for IPC,and 9 for AMS),contributing to Uganda's strengthened GHSA *** success built on the AMR platform,the program trained 745 health workers in IPC for the Ebola virus and provided support for simulation exercises by eight district IPC *** program also worked with the Ministry of Health to coordinate IPC for the COVID-19 response in five health regions,covering 45 districts and reaching 5,452 health workers at 858 health facilities.

关键词： One health Antimicrobial resistance Antibiotic resistance Jointexternal evaluation Global health security Uganda Africa WHO Benchmarks for International Health Regulations Capacities

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瓦尔登湖二、寄居何地,为何目的

中国翻译 2024年第2期45卷 172-174页

作者：亨利·戴维·梭罗孙致礼(译) 不详

[1]时过境迁,我居住在更接近天下那些我最向往的地方,生活在更接近那些我最向往的历史时代。我的住地就像天文学家在夜间观测到的许多天体一样遥远。我们惯于想象在星系中某个遥远的天国的一角,在仙后星座的背后,有一些罕见的怡人之处,... 详细信息

[1]时过境迁,我居住在更接近天下那些我最向往的地方,生活在更接近那些我最向往的历史时代。我的住地就像天文学家在夜间观测到的许多天体一样遥远。我们惯于想象在星系中某个遥远的天国的一角,在仙后星座的背后,有一些罕见的怡人之处,远离喧哗与骚动。我发现,我的房子实际上就位于宇宙间这样一个静的、但却永远新鲜、不染尘垢的地方。

关键词：喧哗与骚动瓦尔登湖仙后星座

Mechanisms and anisotropy of serrated flow in Mg-Gd single crystals

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Journal of Magnesium and Alloys 2023年第5期11卷 1643-1655页

作者： henry Ovri Helmholtz Zentrum Hereon Institute of Materials Mechanics21502 GeesthachtGermany

Serrated flow has been primarily studied at the macron scale,yet the length and times scales at which the solute-meditated dislocation pinning and de-pinning processes that underlie the phenomenon occur are largely inaccessible by macroscopic ***,direct insights into the dominant slip systems in the serrated flow regime,which is particularly critical in Mg alloys given their high plastic anisotropy,requires the use of small-scale testing methods such as ***,in this work,a combination of microcompression and TEM based EDS/STEM measurements have used to critically study the temperature and strain rate dependences in single crystals of pure Mg and a Mg-Gd alloy oriented for twinning,basal-,prismatic-,and *** results provide compelling evidence that the solute drag mechanism underlie serrated flow in the alloy;they also show that serrated flow in Mg alloys is markedly *** anisotropy is caused by differences between the Burgers vector for slip/twinning,and between the impurity diffusivity along/perpendicular to the basal plane.

关键词： Microcompression Mg-RE Mg-Gd Pure Mg Serrated flow Solute drag STEM

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成为更好的CEO

新理财（公司理财） 2024年第2期 82-83页

作者：亨利·恩格尔哈特不详

CEO(首席执行官)等领导要作出全面的决策,但做决策并不意味着回避员工的意见和想法。亨利·恩格尔哈特(henry Engelhardt)解释了如何在控制全局的同时征求员工意见。我曾强调过,优秀领导者的首要能力是决策能力,而要提高决策能力,就应... 详细信息

CEO(首席执行官)等领导要作出全面的决策,但做决策并不意味着回避员工的意见和想法。亨利·恩格尔哈特(henry Engelhardt)解释了如何在控制全局的同时征求员工意见。我曾强调过,优秀领导者的首要能力是决策能力,而要提高决策能力,就应该尽可能多地听取别人的意见,这就引出了领导力的第二个关键能力--善于与人打交道。那么,如何知道自己是否是个好领导?很简单,看员工是否愿意追随你。

关键词：首席执行官恩格尔哈特 CEO 提高决策能力领导力决策意见

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试论创业型大学的发展阶段与核心要素

江苏高教 2024年第1期 1-6页

作者：翁默斯亨利·埃茨科威兹周春彦浙江工业大学公共管理学院杭州310023 国际三螺旋研究所美国硅谷CA94304

创业型大学追求知识进步和知识资本化的双重目标。从大学使命的角度,创业型大学延伸了大学的传统使命,将教学、研究和为经济社会发展做贡献三大使命融为一体并彼此加强。从大学组织变革和内外相互作用的角度,创业型大学的发展基于知识... 详细信息

创业型大学追求知识进步和知识资本化的双重目标。从大学使命的角度,创业型大学延伸了大学的传统使命,将教学、研究和为经济社会发展做贡献三大使命融为一体并彼此加强。从大学组织变革和内外相互作用的角度,创业型大学的发展基于知识资本化的生产逻辑,是“主体性”与“嵌入性”相互促进的过程。由此提出创业型大学发展“知识积累”“知识交换”与“体系驱动”三个阶段。根据三阶段特征,文章分析了创业型大学发展的七个核心要素,包括锚定创业战略方向、加强学术生产能力、培育师生创业精神、完善技术转移机制、生成新的混成组织、促进大学产业互动、营造创业生态系统。

关键词：创业型大学知识资本化第三使命三螺旋

Conditional Coverage Estimation for High-Quality Prediction Intervals

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Journal of Systems Science and Systems Engineering 2023年第3期32卷 289-319页

作者： Ziyi Huang henry Lam Haofeng Zhang School of Engineering and Applied Science Columbia UniversityNew YorkNY 10027USA

Deep learning has been recently studied to generate high-quality prediction intervals(PIs)for uncertainty quantification in regression tasks,including recent applications in simulation *** high-quality criterion requires PIs to be as narrow as possible,whilst maintaining a pre-specified level of data(marginal)***,most existing works for high-quality PIs lack accurate information on conditional coverage,which may cause unreliable predictions if it is significantly smaller than the marginal *** address this problem,we propose an end-to-end framework which could output high-quality PIs and simultaneously provide their conditional coverage *** doing so,we design a new loss function that is both easy-to-implement and theoretically justified via an exponential concentration *** evaluation on real-world benchmark datasets and synthetic examples shows that our approach not only achieves competitive results on high-quality PIs in terms of average PI width,but also accurately estimates conditional coverage information that is useful in assessing model uncertainty.

关键词： Uncertainty quantification prediction intervals conditional coverage neural networks calibrationerror