检索结果-内蒙古大学图书馆

informatics engineering, Science & technology (INCITEST), International Conference on

作者： Siti NurFarahim Shaharudin Muhammad Suzuri Hitam Nur Baini Ismail Wan Nural Jawahir Hj Wan Yussof Ezmahamrul Afreen Awalludin Mohd Erman Safawie Che Ibrahim Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Nerus Terengganu Malaysia Faculty of Fisheries and Food Sciences Universiti Malaysia Terengganu Kuala Nerus Terengganu Malaysia

This paper examines the role of activation functions in deep learning models for sea turtle recognition using the ResNet50 model. We compare six activation functions, namely Sigmoid, ReLU, Leaky ReLU, PReLU, ELU, and Swish, to identify their impact on performance. The results show that Swish and PReLU are highly effective, closely followed by Sigmoid. Interestingly, PReLU outperforms others in terms of training duration. These findings emphasize the importance of selecting the right activation function for sea turtle recognition. Researchers and practitioners can use these insights to improve accuracy and reliability in similar tasks.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Trends in satellite mass distribution data 73

Trends in satellite mass distribution data

引用

73rd International Astronautical Congress, IAC 2022

作者： Dąbrowski, Adam Krawczuk, Szymon Dziadula, Wiktoria Cieślak, Daniel Faculty of Mechanical and Ocean Engineering Gdańsk University of Technology Narutowicza 11/12 Gdańsk80-233 Poland Silesian University of Technology Akademicka 2A Gliwice44-100 Poland Faculty of Electronics Telecommunications and Informatics Gdańsk University of Technology Narutowicza 11/12 Gdańsk80-233 Poland

Prevalence of new lower cost small spacecraft has accelerated the space market in recent years. This paper offers a thorough analysis of satellite launch masses data ranging from early 60s up to 2020s and forecasts. Such trends as satellite market growth are discernable. Moreover, the increase in the number of small satellites is very clear. Furthermore, emergence of standards such as CubeSat or appearance of standardised satellite platforms have been clearly distinguished in the data. With extensive data on planned launches in subsequent years, some predictions can be made. The conclusion is that precise data on satellite masses can be used by investors as a novel tool for business opportunity recognition. A few examples of niches that can emerge based on satellite data are provided. © 2022 by the International Astronautical Federation (IAF). All rights reserved.

关键词： Investments

来源：评论

学校读者我要写书评

暂无评论

Comparing the performance variability of different eDNA primers in fish monitoring

引用

Watershed Ecology and the Environment 2024年第1期6卷 165-175页

作者： Xu, Yan Huo, Xumeng Chen, Xinyue Wang, Zeyang Zhou, Mingliang Zhu, Jie Yan, Rui Cai, Yanpeng College of Marine Science and Technology China University of Geosciences Wuhan 430074 China John von Neumann Faculty of Informatics Biomatics and Applied Artificial Institution Óbuda University Budapest Hungary Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences Beijing 100081 China School of Marine Technology and Environment Dalian Ocean University Dalian 116023 China Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds Institute of Environmental and Ecological Engineering Guangdong University of Technology Guangzhou 510006 China

Environmental DNA technology develops rapidly in the field of biodiversity detection. Selecting appropriate primers may be one of the key questions. However, there is currently a lack of systematic studies on differences in primer detection efficiencies. This research investigates the efficiency of six universal primers (12S, 16S, 18S, MiFish, Cytb, and COI) in detecting fish species across diverse aquatic ecosystems using an environmental DNA approach. The research spans five study areas, representing marine, river, wetland, lake, and reservoir ecosystems. Illumina MiSeq sequencing and bioinformatics tools were employed for primer performance evaluation. Results indicate that MiFish consistently outperforms other primers, detecting the highest number of fish species across all ecosystems and exhibiting superior taxonomic coverage. Furthermore, marine ecosystems consistently show higher detection numbers across all primers. The absence of commonly identified species detected by all primers emphasizes the necessity of using multiple primers for a comprehensive assessment. This study provides valuable insights into the strengths and limitations of universal primers, highlighting the importance of primer selection for accurate eDNA-based fish monitoring. The findings contribute to the scientific basis for the comprehensive management of aquatic ecosystems, assisting researchers and ecosystem managers in screening suitable fish universal primers for eDNA methods. The study also calls for further research into factors influencing primer performance and encourages the refinement of primers to enhance biodiversity monitoring precision in various ecosystems. © 2024 The Authors

关键词： Aquatic ecosystem management eDNA Fish monitoring Network-based Primer Resource node

来源：评论

学校读者我要写书评

暂无评论

Characterization of In-Situ Al2O3-TiO2 and Al2O3-TiO2-graphite nanocomposites prepared by powder metallurgy

引用

Materials Today: Proceedings 2023年

作者： Yusoff, Mahani Mohd Nor, Hazwani Johar Azmi, Nur Afiqah Hamizah Ibrahim, Norfadhilah Razali, Mohd Hasmizam Nik, Wan Mohd Norsani Faculty of Bioengineering and Technology Universiti Malaysia Kelantan Kelantan Jeli17600 Malaysia Faculty of Science and Marine Environment Universiti Malaysia Terengganu Terengganu Kuala Nerus21030 Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Terengganu Kuala Nerus21030 Malaysia

Al2O3-TiO2 composite is known as an excellent hardness, corrosion, and wear-resistant material that can withstand up to 1000 °C. The presence of unstable Al2O5Ti synthesized by powder metallurgy and plasma spray deteriorates the performance of these properties. In this study, two approaches are highlighted which are in situ processing and adding another phase such as graphite into the Al2O3-TiO2 nanocomposite could be solutions to the problem. Al2O3-TiO2 and Al2O3-TiO2-graphite nanocomposites were prepared using in situ processing followed by powder metallurgy routes. The effect of milling times (30, 60, 90, and 120 h) and compaction pressures (200, 400, 600, and 800 MPa) on microstructural, structural, compressibility, and density of Al2O3-TiO2 and Al2O3-TiO2-graphite composites were evaluated. XRD analysis for both composites revealed that the Al2O5Ti phase did not exist in the composite. Milling up to 120 h resulted in a reduction of crystallite size and an increment of internal strain, but only had a slight change in the composite morphology and density. The Al2O3-TiO2-graphite composite exhibited better dispersion of reinforced phase than of Al2O3-TiO2 composite which gave better densification. The densification behavior of both composites depends very much on the compressibility of the composite powder particles. © 2023

关键词： Titanium dioxide

来源：评论

学校读者我要写书评

暂无评论

Efficient online shopping platforms in Southeast Asia 2

Efficient online shopping platforms in Southeast Asia

引用

2nd International Conference on Smart Computing and Electronic Enterprise, ICSCEE 2021

作者： Bamansoor, Samer Pande, Bishwajeet Al Moaiad, Yazeed Pathmanathan, P. Ravindran El-Ebiary, Yousef A. Baker Latiff, Nurul Adilah Abdul Aseh, Khairi Aledinat, Lowai Saleh Yusoff, Fakhrul Hazman MEDIU Faculty of Computer and Information Technology Malaysia Faculty of Informatics and Computing UniSZA Malaysia Gyancity Research Consultancy Pvt Ltd Motihari India MEDIU Faculty of Computer and Information Technology Malaysia International Institute of Applied Science Swiss School of Management Netherlands UniSZA Faculty of Informatics and Computing Malaysia Universiti Malaysia Terengganu Faculty of Ocean Engineering Technology and Informatics Malaysia UniSZA Faculty of Informatics and Computing Malaysia Universiti Teknologi MARA Malaysia

ISBN: (纸本)9781665432221

With the emergence of current developments and their devices that allow correspondence between organizations with each other, just as it is between organizations and service providers, just as with their customers, for some reasons, including advertising and a return to what is acceptable to them with the organization. Items, deals, etc., therefore, this examination provides an internal and external investigation of the current web-based business phase with a focus on promising conditions, risks, qualities, and shortcomings of FashionValet's electronic stage, whose administrations offer more than the Internet. Also, FashionValet is a stage organizer for online shopping and style in Southeast Asia other than Poplook, Zalora, and others, and the bulk of them are important competitors to FashionValet and they implement their own systems. The FashionValet experience, for example, is the history of the creator just as the other company's foundation has been pointed out to characterize how organizations, especially FashionValet, have moved from their primary stage to where they are today as the most aggressive design project. In addition, the technologies and innovations used by FashionValet are shown to provide a comprehensive detailed blueprint. To understand the improvement in style organizations in Malaysia, it was examined further. The paper outlines the critical elements to FashionValet's thriving as an end. © 2021 IEEE.

关键词： Online systems

来源：评论

学校读者我要写书评

暂无评论

A Brief Review of Unmanned Underwater Vehicle Human-Machine Interaction

A Brief Review of Unmanned Underwater Vehicle Human-Machine ...

引用

IEEE International Conference on Underwater System technology: Theory and Applications (USYS)

作者： A. F. Ayob M. R. Arshad S. Jamaludin S.Z.A. Syed Ahmad Virtual Simulator Group (VSG) Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Malaysia Underwater Control & Robotics Group (UCRG) School of Electrical & Electronic Engineering Engineering Campus Universiti Sains Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Malaysia

Unmanned Underwater Vehicle (UUV) research typically seeks to understand the physical performance and control aspects of the underwater vessel operated in a dynamic environment. Commonly, UUV operations involve highly orchestrated coordination to conduct surveys, maintenance, and repair missions. With the vast selection of UUV products in the market, the disparity in the standard user interface is evident. Despite the high-risk and critical operations faced by the UUV operators, very little focus has been dedicated to reviewing the human-UUV interface aspect of the operations of UUV. In this review, an area of Human Machine Interaction (HMI), within the perspective of UUV designs is discussed.

关键词： Human computer interaction Autonomous underwater vehicles Maintenance engineering Vehicle dynamics Standards

来源：评论

学校读者我要写书评

暂无评论

Numerical investigation of an efficient blade design for a flow driven horizontal axis marine current turbine 1

引用

6th International Conference on Civil, Offshore and Environmental engineering, ICCOEE 2020

作者： Maldar, Nauman Ng, Cheng Yee Fitriadhy, Ahmad Kang, Hooi Siang Department of Civil and Environmental Engineering Universiti Teknologi PETRONAS Perak Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Terengganu21300 Malaysia Marine Technology Center Faculty of Engineering Universiti Teknologi Malaysia Johor81310 Malaysia

ISBN: (数字)9789813363113

ISBN: (纸本)9789813363106

The power generation efficiency of a flow driven Marine Current Turbine (MCT) depends upon the Torque (Q) induced by the flow on the turbine and the Angular velocity (x) achieved. The greater the mass of turbine blade, the more will be the Q induced but subsequently will result in lower x. However, on the contrary, lower mass will result in higher x and lower Q. It is therefore necessary for any flow driven MCT to achieve the optimum balance of Q and x so that a turbine model with maximum efficiency can be designed. In this paper, a similar study has been discussed where three different profiles by varying the radius of a horizontal axis turbine blade have been studied using numerical simulations. Emphasis has been given to obtain a blade profile which can attain an optimal combination of Q and x to maximize the power output. The simulations have been carried out for flow velocity of 1 m/s and the average values have been reported in results. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021.

关键词： Turbomachine blades

来源：评论

学校读者我要写书评

暂无评论

Application of HAM for Nonlinear Integro-Differential Equations of Order Two

引用

Journal of Applied Mathematics and Physics 2023年第1期11卷 55-68页

作者： Zainidin Eshkuvatov Davron Khayrullaev Muzaffar Nurillaev Shalela Mohd Mahali Anvar Narzullaev Faculty of Ocean Engineering Technology and Informatics University Malaysia Terengganu (UMT) Terengganu Malaysia Faculty of Applied Mathematics and Intellectual Technologies National University of Uzbekistan Tashkent Uzbekistan Faculty of Physics and Mathematics Tashkent State Pedagogical University (TSPU) Tashkent Uzbekistan Faculty of Science and Technology University Sains Islam Malaysia (USIM) Bandar Baru Nilai Malaysia

In this work, we consider the second order nonlinear integro-differential Equation (IDEs) of the Volterra-Fredholm type. One of the popular methods for solving Volterra or Fredholm type IDEs is the method of quadrature while the problem of consideration is a linear problem. If IDEs are nonlinear or integral kernel is complicated, then quadrature rule is not most suitable;therefore, other types of methods are needed to develop. One of the suitable and effective method is homotopy analysis method (HAM) developed by Liao in 1992. To apply HAM, we firstly reduced the IDEs into nonlinear integral Equation (IEs) of Volterra-Fredholm type;then the standard HAM was applied. Gauss-Legendre quadrature formula was used for kernel integrations. Obtained system of algebraic equations was solved numerically. Moreover, numerical examples demonstrate the high accuracy of the proposed method. Comparisons with other methods are also provided. The results show that the proposed method is simple, effective and dominated other methods.

关键词： Integral-Differential Equations Homotopy Analyses Method Iterative System Algebraic Equations Gauss-Legendre Quadrature Formula

来源：评论

学校读者我要写书评

暂无评论

Synthesis, Characterisation, and Corrosion Inhibition Performance of a β-Cyclodextrin/Melamine Supramolecular Complex on St20 Steel in Acidic Media

引用

Journal of Bio- and Tribo-Corrosion 2024年第4期10卷 1-22页

作者： Berdimurodov, Elyor Eliboev, Ilyos Dagdag, Omar Lal, Basant Berisha, Avni Rajabov, Yusufboy Mamatov, Jaykhun Wan Nik, W.B. Kholikov, Abduvali Akbarov, Khamdam Chemical & amp Materials Engineering New Uzbekistan University 54 Mustaqillik Ave. Tashkent100007 Uzbekistan Faculty of Chemistry National University of Uzbekistan Tashkent100034 Uzbekistan Uzbek-Finnish Pedagogical Institute Spitamen Street 166-Home Samarqand Uzbekistan Department of Mechanical Engineering Gachon University Seongnam13120 Korea Republic of Department of Chemistry Institute of Applied Science and Humanities GLA University Mathura281406 India Department of Chemistry Faculty of Natural and Mathematics Science University of Prishtina Prishtina10000 Albania Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Nerus21030 Malaysia Physics and Chemistry "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers" National Research University Tashkent100000 Uzbekistan Natural Science University of Tashkent for Applied Sciences Str. Gavhar 1 Tashkent100149 Uzbekistan Physics and Chemistry Western Caspian University BakuAZ-1001 Azerbaijan

Corrosion poses major challenges in various industrial sectors such as oil and gas, chemicals, and infrastructure. Traditional corrosion inhibitors have limitations in terms of toxicity and environmental compatibility. Supramolecular complexes are promising as green corrosion inhibitors, as the interaction between host and guest molecules can be tailored for different application needs. This study investigates a β-cyclodextrin (β-CD)/melamine (ME) supramolecular complex. The synthesis of the complex is confirmed by Raman spectroscopy, 1H NMR, and FT-IR methods. A range of characterisation techniques are used to analyse the complex’s structure. Gravimetric and electrochemical tests, including potentiodynamic polarisation and electrochemical impedance spectroscopy, evaluate its corrosion inhibition performance on steel in 0.5 M HCl solution at varying concentrations (25–100 mg/L) and temperatures (303 to 333 K). Computational modelling, including Density Functional Theory, Monte Carlo, and Molecular Dynamics simulations, provides atomic-scale insights into the mechanisms of inhibition. The synthesis, characterisation, and corrosion prevention performance of a novel supramolecular complex, β-cyclodextrin/melamine (β-CD/ME), on St20 steel, in acidic conditions, were the subjects of an inventive investigation that was described in this publication. The complex’s structural alterations, physical interactions, and structure were effectively disclosed, using Raman spectroscopy, 1H NMR, and FT-IR. The β-CD/ME complex’s ability to prevent corrosion in hostile solutions exceeded 92–94%, resulting in the formation of a thin protective film on the metal surface and acting as a mixed-type inhibitor. A novel mix of theoretical and experimental methods is used in this work to comprehend the underlying mechanisms, including the influence of structural factors on corrosion prevention effectiveness and the adsorption energies of the complex on the metal surface. Electrochemical tests

关键词： Molecular dynamics

来源：评论

学校读者我要写书评

暂无评论

Modelling lock-down strictness for COVID-19 pandemic in ASEAN countries by using hybrid ARIMA-SVR and hybrid SEIR-ANN

引用

Arab Journal of Basic and Applied Sciences 2021年第1期28卷 204-224页

作者： Bakar, Maharani A. Mohamed, Norizan Pratama, Danang A. Yusran, M. Fawwaz A. Aleng, Nor Azlida Yanuar, Z. Niken, L. Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Terengganu Malaysia Department of Electrical and Electronic Faculty of Engineering Universiti Malaysia Sarawak Kota Samarahan Sarawak Malaysia Department of Mathematics Universitas Jenderal Soedirman Purwokerto Indonesia

ASEAN, include Indonesia, Malaysia, Philippines, Singapore, and Thailand, are the countries with ongoing transmission of SARS-COV-2, the virus that causes COVID-19. The confirmed cases in Indonesia and Philippines are the highest ranks among other ASEAN countries such as Malaysia, Thailand, and Singapore. To reduce the spread of the pandemic COVID-19, each country has implemented the lock-down policy differently, depending on its economic situation. Therefore, the study of the impact of lock-down across the world, particularly in ASEAN countries, is still relevant to do. In this study, we developed the lock-down model in ASEAN countries by using hybrid ARIMA-SVR and hybrid SEIR-ANN. The first hybrid is based on the time series model ARIMA, with the revision of the error is by using SVR. The second hybrid is based on the classical model of infectious diseases, SEIR, which we revise on the prediction part by using ANN. The hybrid is intended to revise the individual prediction model. The data collected per country was started from January 20, 2020 to August 5, 2020. The periods of lock-down in this study are divided into three, namely no lock-down, implemented lock-down, and the new normal periods. The strictness levels of lock-down were predicted for 60 days ahead. The results showed that the hybrid ARIMA-SVR had smaller RMSE compared with individual ARIMA, similarly, hybrid SEIR-ANN predicted S, E, I, and R more accurately compared with individual SEIR model. It has been also found that the lock down was most effectively implemented in Thailand, Singapore, and Malaysia, whereas Indonesia and Philippines were inefficient countries to enforce the restriction. It is indicated by the number of cases increased significantly during the restriction periods in both countries. © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of the University of Bahrain.

关键词： ANN ARIMA COVID-19 hybrid model Lock-down SEIR SVR

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：