检索结果-内蒙古大学图书馆

Advances in Electrical, Computing, Communication and Sustainable Technologies (ICAECT), International conference on

作者： Harsh Bhutra Bettina Ann Thomas K Shreya Shri T.V. Smitha Nizampatnam Neelima Department of Electronics and Communication Amrita School of Engineering Amrita Vishwa Vidyapeetham Bengaluru India Computational Science Lab Amrita School of Engineering Amrita Vishwa Vidyapeetham Bengaluru India

ISBN: (数字)9798350356236

ISBN: (纸本)9798350356243

The Cahn-Hilliard equation is a fourth-order parabolic partial differential equation that is challenging and time-intensive to solve using conventional methods. Although the equation is difficult to solve, it finds its use cases in many aspects of science including but not limited to the study of phase separation in the binary, isotropic and isothermal mixtures of materials such as molten alloys. Some of the other applications are Bioinformatics, Computational Biology, Biomedical informatics, human activity recognition, Healthcare, computer vision, Climate Science and Natural Language Processing. Many researchers have come up with a way to deal with partial differential equations, but very few works and methods deal with different orders of partial differential equations. In this article, a novel and effective scheme for solving the Cahn-Hilliard equation is proposed using FEniCS. The time of execution and relative tolerance of the solutions of this equation are computed from methods of direct computation and parallel processing which is carried out for the equation with higher-order finite element method for various boundary conditions to demonstrate the efficiency of the proposed approach. The solution thus obtained helps in understanding the non-linear behaviour of the equation with the help of a three-dimensional heatmap plot. This work solves the Cahn Hilliard equation by using the in-built libraries, Dolphin an open-source software called FEniCS and Message Passing Interface (MPI). The MPI is responsible for achieving parallelism in high-performance computing environments and breaks down the problem into four smaller parts making it faster to get to the solution. The obtained results demonstrate that this approach outperforms the existing literature by achieving a forty percent faster computational speed. The approach will be very useful in solving many similar problems arising in the field of science and engineering.

关键词： Heating systems Accuracy Three-dimensional displays Partial differential equations Parallel processing Boundary conditions mathematical models Libraries Computational efficiency Bioinformatics

来源：评论

学校读者我要写书评

暂无评论

behaviour and Reasoning Description Language (BRDL) 3rd

Behaviour and Reasoning Description Language (BRDL)

引用

17th International conference on Software engineering and Formal Methods (SEFM)

作者： Cerone, Antonio Nazarbayev Univ Dept Comp Sci Nur Sultan Kazakhstan

ISBN: (纸本)9783030575069;9783030575052

In this paper we present a basic language for describing human behaviour and reasoning and present the cognitive architecture underlying the semantics of the language. The language is illustrated through a number of examples showing its ability to model human reasoning, problem solving, deliberate behaviour and automatic behaviour. We expect that the simple notation and its intuitive semantics may address the needs of practitioners from non matematical backgrounds, in particular psychologists, linguists and other social scientists. The language usage is twofold, aiming at the formal modelling and analysis of interactive systems and the comparison and validation of alternative models of memory and cognition.

关键词： Cognitive science human reasoning Problem solving human behavior Formal methods

来源：评论

学校读者我要写书评

暂无评论

Explainable AI for CPS-Based Manufacturing Workcell

Explainable AI for CPS-Based Manufacturing Workcell

引用

International conference on System Science and engineering (ICSSE)

作者： Ren-Jun Soon Dinh Viet Sang Chin-Boon Chng Chee-Kong Chui Department of Mechanical Engineering National University of Singapore Singapore

This paper discusses the application of Explainable AI (XAI) for a Cyber-Physical System (CPS)-based manufacturing workcell. XAI involves providing interpretable outputs from deep learning models. CPSs are systems that integrate interacting analogue, physical and human inputs, and have applications in control optimisation, automation and process intelligence. Current state of the art and gaps in XAI and CPSs are introduced. The need for CPSs with in-built logic to correct and reduce dependency on conventional mathematical modelling of physical systems is identified, together with how the in-built logic must be explainable and understandable to build trust in the logic. This is especially true for applications where manufacturing accuracy and precision are critical. Whilst there have been advances in both XAI and CPSs in recent years, little progress has been made in integrating the two. We show that XAI can increase the efficiency and reliability of CPS-based manufacturing. XAI in CPS can ensure that manufacturing validation inputs made by deep learning networks within the CPS are understandable and correct. It thus ensures that the CPS outputs have actions that are explainable and logic dependent, with safeguards against malicious intent. This contrasts against conventional CPS which may have learning-based systems with ‘black box’ outputs that are assumed to be correct. Approaches towards XAI and how they can be integrated into a learning-based machine vision CPS manufacturing workcell are described. An analysis of the effectiveness of these approaches and their feasibility of implementation in such a CPS is performed. A recommendation of what is the most promising approach towards implementing XAI in the CPS manufacturing of a mass-market, specialised and personalised product, is made as a conclusion.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Enhancing position control performance of magnetic levitation system using optimized PID-P controller: a performance analysis

Enhancing position control performance of magnetic levitatio...

引用

7th IET Smart Cities Symposium (SCS 2023)

作者： P. K. Dutta Subhra Mullick School of Electronics and Communication Engineering Amity University Kolkata Kolkata India Geological Studies Unit Indian Statistical Institute Kolkata West Bengal India

Magnetic levitation systems (maglev) have emerged as a promising technology for a wide range of applications due to their numerous benefits. However, these systems are highly unstable and nonlinear, requiring a suitable controller to enhance their performance. This study proposes a hybrid Proportional-Integral-Derivative (PID-P) controller to improve the position control of the maglev system. A non-linear behaviour model representing the maglev system is developed using appropriate mathematical modelling. The performance results of the proposed controller are compared with those of a 2- DOF PID controller using simulation in Matlab- Simulink. In this study, we focus on the performance analysis of an optimized PID- P controller for the position control of MLS. First, we develop a mathematical model for the system and linearize the non- linear dynamics to establish the input-output relationship based on the physical parameters of the MLS. We then apply conventional PID and PID-P controllers for MLS control and optimize the PID-P controller using modern optimization algorithms The findings indicate that the proposed PID-P controller outperforms the traditional 2-DOF PID controller in terms of position control performance. The transient and steady-state responses of both modern and classical controllers are also analysed. The results of this study provide a useful enhancement analysis in the time domain for the unstable position control of the maglev system.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Learning human behaviour Patterns by Trajectory and Activity Recognition 13

Learning Human Behaviour Patterns by Trajectory and Activity...

引用

13th International Joint conference on Biomedical engineering Systems and Technologies

作者： Fernandes, Leticia Barandas, Marilia Gamboa, Hugo Assoc Fraunhofer Portugal Res Rua Alfredo Allen 455-461 P-4200135 Porto Portugal Univ Nova Lisboa Lab Instrumentacao Engn Biomed & Fis Radiacao LIB Dept Fis Fac Ciencias & Tecnol P-2829516 Monte De Caparica Caparica Portugal

ISBN: (纸本)9789897583988

The world's population is ageing, increasing the awareness of neurological and behavioural impairments that may arise from the human ageing. These impairments can be manifested by cognitive conditions or mobility reduction. These conditions are difficult to be detected on time, there is a lack of routine screening which demands the development of solutions to better assist and monitor human behaviour. This study investigates the question of what we can learn about human behaviour patterns from the rich and pervasive mobile sensing data. Data was collected over 6 months, measuring two different human routines through human trajectory analysis and activity recognition comprising indoor and outdoor environment. A framework for modelling human behaviour was developed using human motion features, extracted with and without previous knowledge of the user's behaviour. The human patterns were modelled through probability density functions and clustering approaches. Using the learned patterns, inferences about the current human behaviour were continuously quantified by an anomaly detection algorithm where distance measurements were used to detect significant changes in behaviour. Experimental results demonstrate the effectiveness of the proposed framework that revealed an increased potential to learn behavioural patterns and detect anomalies.

关键词： human behaviour Pattern Recognition Anomaly Detection Ambient Assisted Living Probability Density Function Clustering

来源：评论

学校读者我要写书评

暂无评论

Numerical Analysis of PCM Packed Bed Heat Storage Coupled with Transpired Solar Collector 10

Numerical Analysis of PCM Packed Bed Heat Storage Coupled wi...

引用

10th International conference on ENERGY and ENVIRONMENT, CIEM 2021

作者： Pop, Octavian G. Bode, Florin Berville, Charles Croitoru, Cristiana Technical University of Cluj-Napoca Dept. of Building Services Engineering Cluj-Napoca Romania CAMBI Research Centre Technical University of Civil Engineering Bucharest Bucharest Romania

ISBN: (纸本)9781665445849

Transpired solar collectors (TSC) represent low-cost energy efficient technologies used for heating air in ventilation purposes for buildings, industrial and agricultural applications. The excess energy from the sun generated during daytime can be stored in phase change materials (PCM) and could lead to improvement of the efficiency of the TSC. The study presents a numerical model developed for the purpose of evaluating the thermal behaviour of PCM packed beds charged using TSC. The mathematical model demonstrated good accuracy, when validated based on experimental data provided by the literature. The impact of three different paraffin waxes on the outlet air temperature of a TSC system and on the charging and discharging behaviour was numerically analysed. The numerical study revealed that slight phase change temperature changes, impact the air outlet temperatures significantly. © 2021 IEEE.

关键词： Numerical models

来源：评论

学校读者我要写书评

暂无评论

mathematical model prototype to optimise engineering management of the construction site

引用

engineering Management in Production and Services 2022年第2期14卷 46-55页

作者： Kontrimovičius, Robertas Ustinovičius, Leonas Faculty of Engineering Management Bialystok University of Technology Poland Vilnius Gediminas Technical University Lithuania

Modern construction technologies strongly affect the environment. Therefore, design and building construction should also follow the sustainable development principle. In this case, design and construction work based on the sustainable development principle should aim at creating a safe and healthy living environment, the economical use of natural resources, and the stimulation of economic development to create the welfare for humans and favourable natural conditions. The article proposes a mathematical algorithm as a comprehensive solution for engineering management of the planning construction site, from the calculation of the earthworks to the automated creation of the engineering geological cross-sections. The paper integrates engineering management, mathematical modelling, and BIM technology. The application of the building information model is undoubtedly one of the most advanced technologies used in the engineering management field, whose advantages have been shown by researchers. In the preliminary stage of construction and production management, decisions should be made regarding material and human resources, schedules, and estimates. The main purpose of this article is the optimisation of the excavation. Other issues important to the organisation and management of the construction are the planning of safe work on the construction site, depending on the soil type. Geotechnical sections allow ascertaining the need for additional fortifications and the depth of the fortifications for safe work. The paper describes the principal mathematical model developed by the authors to design a construction site using BIM technologies. It presents the main formulas of a mathematical algorithm aimed at selecting the objects used on the building site and the need for them. It also gives the main principles of engineering management and methods for selecting the mechanisms used on the construction site. Understandably, a specialist’s visit to the construction site will not

关键词： Sustainable development

来源：评论

学校读者我要写书评

暂无评论

human Factors for the Adoption of Blockchain Technology: A Case of the Australian Retail Sector

Human Factors for the Adoption of Blockchain Technology: A C...

引用

ACIS International conference on Software engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing (SNPD)

作者： Ashim Nikunj Chapagain Srimannarayana Grandhi Jahan Hassan School of Engineering & Technology Central Queensland University Sydney Australia School of Engineering & Technology Central Queensland University Melbourne Australia

Australian retail sector has fallen victim to the recent lockdowns due to COVID-19 pandemic, which forced retailers to adopt new technologies to conduct business online. As a result, several businesses are attempting to use Blockchain technology to enhance security and promote transparency. Prior studies indicated the importance of human factors in technology adoption decisions. However, there is limited research on how human factors play out in blockchain technology adoption decisions in the Australian retail sector. Therefore, this study identifies the human factors and presents a research model to investigate their influence on technology adoption decisions in the Australian retail sector. The proposed study will use a quantitative approach and collects data using online survey questionnaires. This study will test the derived hypotheses using the structural equation modelling technique. This study is expected to help develop appropriate policies to enhance blockchain technology adoption in the Australian retail sector.

关键词： Pandemics Computational modeling human factors Predictive models mathematical models Blockchains Australia

来源：评论

学校读者我要写书评

暂无评论

Optimal Control Strategy to Reduce HIV-1 Infection in the Brain

Optimal Control Strategy to Reduce HIV-1 Infection in the Br...

引用

International conference on Control, Decision and Information Technologies (CoDIT)

作者： Sofia Baiocchi Federica Blengini Francesca Caleno Paolo Di Giamberardino Daniela Iacoviello Dept. of Computer Control and Management Engineering Sapienza University of Rome Rome Italy

The study of human Immunodeficiency Virus (HIV) and of its progression to Acquired Immune Deficiency Syndrome (AIDS) has been a challenge by scientists since the early 1980s; the improvements in the knowledge of its transmission and of the evolution of the disease have strongly reduced the mortality, even if up to know an effective vaccine is not available. Nevertheless, the Highly Active Antiretroviral Therapy (HAART) allows a high life expectancy. Some of the mechanisms of HIV reproduction are under investigation and recent observations are suggesting the existence of virus reservoir in the brain, the liver, the lungs and the gut. In particular, due to untreated amounts of virus, neurocognitive disorders as well as motor nerves diseases and weakness in muscles are improved in patients already weakened. In this paper it is considered a mathematical modelling to study the within-host viral dynamics, analysing the dynamics of the CD4-T cells, of the macrophages both inside and outside the brain, uninfected and infected, along with the virions carrying on the infection. An optimal control strategy is proposed and implemented,aiming at maximizing the number of healthy cells, while reducing the number of infected ones, scheduling suitably the therapy.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Virtual Reality and the Interactive Design of Elevated Public Spaces: Cognitive Experience vs VR Experience 25th

Virtual Reality and the Interactive Design of Elevated Publi...

引用

25th International conference on human-Computer Interaction, HCII 2023

作者： Ehab, Ahmed Heath, Tim Burnett, Gary Human Factors Research Group University of Nottingham University Park NottinghamNG7 2RD United Kingdom

ISBN: (纸本)9783031360039

VR and visualization are visual aids, but can give much more than sight, such as a wider sensation of being in the 3D world. For the past ten years, researchers and organizations have been trying to find ways to get the public more involved in social project design and execution. Technologies such as Visual Simulation (VS) and Virtual Reality (VR) could make it possible to provide final stakeholders and consumers with closer access to the design and implementation processes of social projects. This paper analyzed two recent developments in London, Sky Garden and Crossrail Place. The study investigates how technologies such as VR can enhance the design experience of elevated urban spaces. The main aim of this study is to explore the difference and similarities between human interaction in the real cognitive experience and the virtual world. The method used in this study is walk-long interviews with the visitors of both gardens and a VR exploratory experiment, followed by semi-structured interviews with the participants. This methodology brings the participant as an active element of the project, able to explore the space and propose changes. The paper discussed (i) the design quality of elevated social spaces such as accessibility, circulation, activities, design concerns and design features, (ii) the participant’s experience and behaviour during the study and (iii) the effectiveness of the design used tools. The results showed a positive impact on enhancing user involvement and allowed users to produce and test different design alternatives in real time. The research findings include a study of human activities in the physical and the virtual world, pedestrian modelling for the selected case studies, and an analysis of the potential need for new rules and regulations relating to the use of such spaces. The research also highlighted the limitations and potentials of using these new methods as a co-design approach for designing public and social spaces in the city. ©

关键词： Virtual reality

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：