A. H. S. Garmabaki

ORCID: 0000-0003-2976-5229
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Reliability and Maintenance Optimization
  • Software Reliability and Analysis Research
  • Smart Materials for Construction
  • Railway Engineering and Dynamics
  • Infrastructure Maintenance and Monitoring
  • Concrete Corrosion and Durability
  • Software Engineering Research
  • Life Cycle Costing Analysis
  • Infrastructure Resilience and Vulnerability Analysis
  • Statistical Distribution Estimation and Applications
  • Railway Systems and Energy Efficiency
  • Probabilistic and Robust Engineering Design
  • Mining and Resource Management
  • Innovation Diffusion and Forecasting
  • Transport and Economic Policies
  • Firm Innovation and Growth
  • Structural Integrity and Reliability Analysis
  • Maritime Transport Emissions and Efficiency
  • Vehicle emissions and performance
  • Mining Techniques and Economics
  • BIM and Construction Integration
  • Quality and Supply Management
  • Management and Optimization Techniques
  • Geotechnical Engineering and Underground Structures
  • Quality and Safety in Healthcare

Luleå University of Technology
2015-2024

Islamic Azad University of Najafabad
2023

Swedish Meteorological and Hydrological Institute
2022

UiT The Arctic University of Norway
2022

Islamic Azad University, Tehran
2011-2016

University of Delhi
2011-2013

Climate change impacts such as extreme temperatures, snow and ice, flooding, sea level rise posed significant threats to railway infrastructure networks. One of the important questions that managers need answer is, "How will maintenance costs be affected due climate in different scenarios?" This paper proposes an approach estimate implication on life cycle cost (LCC) railways assets. The proportional hazard model is employed capture dynamic effects reliability parameters LCC A use-case from...

10.1016/j.trd.2024.104072 article EN cc-by Transportation Research Part D Transport and Environment 2024-01-19

Railway infrastructure is vulnerable to extreme weather events such as elevated temperature, flooding, storms, intense winds, sea level rise, poor visibility, etc. These have consequences for the dependability of railway and acceptable services by managers other stakeholders. It quite complex difficult quantify climate change on because inherent nature itself. Hence, main aim this work qualitatively identify assess impact with associated risks consequences. A qualitative research methodology...

10.3390/su132413856 article EN Sustainability 2021-12-15

Climate change impacts can escalate the deteriorating rate of infrastructures and impact infrastructure's functionality, safety, operation maintenance (O&M). This research explores climate change's influence on urban railway infrastructure. Given geographical diversity Sweden, network is divided into different zones utilizing K-means algorithm. Reliability analysis using Cox Proportional Hazard Model proposed to integrate meteorological parameters operational factors predict degree climatic...

10.1016/j.scs.2023.105084 article EN cc-by Sustainable Cities and Society 2023-11-25

This paper proposes a model selection framework for analysing the failure data of multiple repairable units when they are working in different operational and environmental conditions. The provides an approach splitting non‐homogeneous set into homogeneous groups, based on their patterns statistical trend tests. In addition, population includes with inadequate amount data, analysts tend to exclude those from analysis. A procedure is presented modelling reliability under influence such group...

10.1002/qre.1938 article EN Quality and Reliability Engineering International 2015-12-10

An automatic, fast, and accurate switching method between Global Positioning System indoor positioning systems is crucial to achieve current user positioning, which essential information for a variety of services installed on smart devices, e.g., location-based (LBS), healthcare monitoring components, seamless indoor/outdoor navigation localization (SNAL). In this study, we proposed an approach accurately detect the environment according six different daily activities users including walk,...

10.3390/s19030511 article EN cc-by Sensors 2019-01-26

Automotive manufacturing industries are required to improve their productivity with higher production rates at the lowest cost, less number of unexpected shutdowns, and reliable operation. In order achieve above objectives, application reliability, availability, maintainability methodologies can constitute for resilient operation, identifying bottlenecks process optimization maintenance actions. this article, we propose a framework evaluation performance conveying vehicle body in an...

10.1177/1748006x18818266 article EN Proceedings of the Institution of Mechanical Engineers Part O Journal of Risk and Reliability 2018-12-31

Climate change impacts pose challenges to a dependable operation of railway infrastructure assets, thus necessitating understanding and mitigating its effects. This study proposes machine learning framework distinguish between climatic non-climatic failures in infrastructure. The maintenance data turnout assets from Sweden's were collected integrated with asset design, geographical meteorological parameters. Various algorithms employed classify across multiple time horizons. Random Forest...

10.1016/j.trd.2024.104371 article EN cc-by Transportation Research Part D Transport and Environment 2024-08-23

In today's environment of global competition where each company is trying to prove itself better than its competitors, software have continually do up-gradation or add-ons in their survive the market. Each succeeding offers some innovative performance enhancement new functionality etc distinguishing from past release. But at same time amount risk involved up-gradation/add-ons with regard introducing faults increasing fault number also formidable. This model categorizes two types: Type-1 and...

10.1109/ieem.2011.6118175 article EN IEEE International Conference on Industrial Engineering and Engineering Management 2011-12-01

In today's market where each company is trying to prove itself better than its competitors, companies have continually bring new generations of their products so as survive in the market. Each succeeding generation offers some innovative performance or functionality, distinguishing from past generation. Based on behavioural assumptions diffusion theory, this paper proposes an extension Bass model that separates substitution switching well leapfrogging. We also present a relationship between...

10.1504/ijor.2013.052715 article EN International Journal of Operational Research 2013-01-01

Underground pipelines are an essential part of the transportation infrastructure. The structural deterioration crossing railways and their subsequent failures can entail critical consequences for society industry, resulting in direct indirect costs all stakeholders involved. Therefore, continuous accurate condition assessment is effective management maintenance pipeline networks within aim this study has been to identify failure modes related railway corridors. Expert opinions have collected...

10.1080/15732479.2019.1666885 article EN cc-by-nc-nd Structure and Infrastructure Engineering 2019-09-24

The today's fast-paced, competitive environment in the field of Science and Technology, demands highly reliable hardware software order to achieve new breakthroughs quality productivity. In this scenario, first release products includes enough features functionality make it useful for customers. Later, companies have come up with upgradation or add-ons their survive market through a series releases. Each succeeding offers some innovative performance functionality, distinguishing itself from...

10.1142/s021853931250012x article EN International Journal of Reliability Quality and Safety Engineering 2012-06-01

10.1016/j.coldregions.2015.12.013 article EN Cold Regions Science and Technology 2016-01-26

Automation is the operation of machinery or processes by devices, such as robots and machines, able to make execute decisions without human intervention. one most attractive research development areas in mining, it aims solve many technical, production safety problems current future mining. This paper studies structure automated mining systems from a reliability failure occurrence perspective. It reviews main subsystems related modes. Based on field investigation literature review,...

10.1080/17480930.2015.1091617 article EN International Journal of Mining Reclamation and Environment 2015-10-25

Modern societies have become more and complex, interconnected, heavily dependent on transport infrastructure.Moreover, most infrastructures were conceptualized, designed built without anticipating the future variations of climate change.Climate changes a negative impact railway system related costs.Increased temperatures, precipitation, sea levels, frequency extremely adverse weather events such as floods, heatwaves, heavy snowfall pose major risks consequences for infrastructure assets,...

10.3850/978-981-18-5183-4_s25-01-126-cd article EN 2022-01-01

Software testing is a necessary part of software development life cycle (SDLC) to achieve high reliable system. In today’s environment global competition where each company trying prove itself better than its competitors, companies have continually do up-gradation or add-ons in their survive the market. Each succeeding offers some innovative performance new functionality, distinguishing from past release. We consider combined effect bugs encountered during present release and user reported...

10.1504/ijpqm.2014.065556 article EN International Journal of Productivity and Quality Management 2014-01-01

This paper presents an effective reliability model for multi-release open source software (OSS), which derived based on lifecycle development process (SDLC) proposed by Jørgensen [1]. Most of OSS models do not consider the unique characteristic in model. model, combine bugs removed from pre-commit test and parallel debugging phases. Furthermore, is assumptions that total number fault removal new release depends reported faults previous generated due to adding some adds-on existing system....

10.1109/ieem.2015.7385750 article EN 2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM) 2015-12-01

The snow galleries along the Iron Ore railway line in northern Sweden have faced problems recent years due to increasingly large loads, and several been damaged. These incidents motivated an evaluation of maximum load supported by before collapse, which is presented this study. In 2021, a monitoring system was installed one main frames two built 1950s follow up with temperature displacements, including trigger that sends out warning message when critical reached. A literature review on loads...

10.3389/fbuil.2023.1308401 article EN cc-by Frontiers in Built Environment 2024-01-08

Abstract Various factors, including climate change and geographical features, contribute to the deterioration of railway infrastructures over time. The impacts have caused significant damage critical components, particularly switch crossing (S&C) elements in network. These components are sensitive abnormal temperatures, snow ice, flooding, making them susceptible failures. consequences S&C failures can a detrimental effect on reliability safety entire It is crucial reliable...

10.1007/s13198-024-02397-6 article EN cc-by International Journal of Systems Assurance Engineering and Management 2024-06-21
Coming Soon ...