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In the era of mass customization and supply chain rivalry, managing product diversity is essential for survival in business. The use of common part for different products is a vital method of achieving the goal. The advantages of... more
In the era of mass customization and supply chain rivalry, managing product diversity is essential for survival in business. The use of common part for different products is a vital method of achieving the goal. The advantages of insertion of duplicate component in a product family are stated in literatures. Simulation or conceptual beliefs is employed in the majority of the researches and mainly considered single stage manufacturing. However, the mathematical models in the premises of multistage production are not available. In this ...
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In this paper, the authors have investigated the effects components commonality and uncertainty in lead time, machine breakdown, etc. in a manufacturing environment. The production is characterized by multiple end items for multi-period... more
In this paper, the authors have investigated the effects components commonality and uncertainty in lead time, machine breakdown, etc. in a manufacturing environment. The production is characterized by multiple end items for multi-period and multi-stage dependent demand. The delivery performances, throughput of the finished products and average production time in the system are examined for different experimental scenarios with reference to an existing manufacturing setting. A simulation package, namely WITNESS is ...
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An experimental investigation has been carried out for turbulent flow in a tube with perforated twisted tape inserts. The mild steel twisted tape inserts with circular holes of different diameters (i.e., perforation) are used in the flow... more
An experimental investigation has been carried out for turbulent flow in a tube with perforated twisted tape inserts. The mild steel twisted tape inserts with circular holes of different diameters (i.e., perforation) are used in the flow field. An intensive laboratory study is conducted for heat transfer and pressure drop characteristics in the tubes for turbulent flow with various airflow rates. Heat transfer and pressure drop data are engendered for a wide range Reynolds number (1.3×104–5.2×104). Tube wall temperature, pressure drop, air velocity, and its temperature are measured both for plain tube and for tube with perforated twisted tape inserts. Heat transfer coefficients, Nusselt number, pumping power, and heat transfer effectiveness are calculated for both cases. Experimental results showed that perforated twisted inserts of different geometry in a circular tube enhanced the heat transfer rate with an increase in friction factor and pumping power for turbulent flow. The pump...
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In recent years the design, fabrication and development of dexterous robotic arms and robotic hands have been active research areas all around the world. This paper describes a mechanical system design concept and a prototype... more
In recent years the design, fabrication and development of dexterous robotic arms and robotic hands have been active research areas all around the world. This paper describes a mechanical system design concept and a prototype implementation of a 5 DOF jointed-arm robot, which should perform industrial task such as pick-and-place operation. This robot arm, being controlled by a microcontroller and interfaced to a computer, has base rotation, shoulder, elbow and wrist motion, and a functional gripper. Two-fingered gripper ...
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Abstract-The use of common parts for different products (commonality) is important methods for managing product variety and preserving competitiveness in the age of mass customization and supply chain competition. In literature, the... more
Abstract-The use of common parts for different products (commonality) is important methods for managing product variety and preserving competitiveness in the age of mass customization and supply chain competition. In literature, the advantages of inclusion of common components in a product family are well established. Unfortunately, most of the works have been conducted via simulation or conceptual thinking. The mathematical models in the premises are not adequate for production, planning and control in multistage ...
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The conventional resources of energy in Bangladesh are depleting at a very high rate. Hence the search as well as utilization entails alternative resources. Wind, likewise a natural resource, is a renewable energy, which can be utilized... more
The conventional resources of energy in Bangladesh are depleting at a very high rate. Hence the search as well as utilization entails alternative resources. Wind, likewise a natural resource, is a renewable energy, which can be utilized for electricity generation, pumping water and many other applications. The main objective of this research is to fabricate and install a model type vertical shaft windmill resulting in testing of its performance.
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Dry fish is one of the major export items of Bangladesh, a least developing country in south Asia. Most of the dry fish industries in the country are using direct sunlight for drying the fishes. The main objectives of this research are:... more
Dry fish is one of the major export items of Bangladesh, a least developing country in south Asia. Most of the dry fish industries in the country are using direct sunlight for drying the fishes. The main objectives of this research are: i) to design and to fabricate a model type solar tunnel dryer like a solar air heater; ii) to analyze the effectiveness of the dryer; and iii) finally a comparison is performed with traditional method of sun drying. The authors have constructed a simple solar tunnel using locally available low cost materials. ...
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Only one in five Bangladeshis has access to power. Probably, it is more discouraging in the rural areas of the Country. People living in the land are observing serious load shedding due to the generation deficit. The suffering of its... more
Only one in five Bangladeshis has access to power. Probably, it is more discouraging in the rural areas of the Country. People living in the land are observing serious load shedding due to the generation deficit. The suffering of its citizen could lessen by a proper load management system. In this paper, the authors have designed and fabricated a circuit that can control (on/off) distribution line of a specific region based on the intensity of the daylight (LUX). If the light intensity varies with seasons or some other ...
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Biomass is a general term for living material–plants, animals, fungi and bacteria. Taken together, the Earth's biomass represents an enormous store of energy. Since biomass can be reproduced, it is a potential renewable source of... more
Biomass is a general term for living material–plants, animals, fungi and bacteria. Taken together, the Earth's biomass represents an enormous store of energy. Since biomass can be reproduced, it is a potential renewable source of energy. Bangladesh is a densely populated country. Large proportions of indigent people residing in both rural areas and suburban, traditionally harvest fire wood, vegetation, animal excreta and agricultural residues for domestic cooking. These methods proved to be unsustainable as fire woods ...
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Abstract. Parts commonality is an ignored topic in most of the studies in milieu of manufacturing resource planning. In real world manufacturing settings, parts commonalities occur in their own ways or can be planned for their preferred... more
Abstract. Parts commonality is an ignored topic in most of the studies in milieu of manufacturing resource planning. In real world manufacturing settings, parts commonalities occur in their own ways or can be planned for their preferred happening. The use of common components for different products in a company is important for managing product variety and maintaining competitiveness in this age of mass customization and supply chain struggle. The ever-increasing intricacy in manufacturing systems has generated a demand ...
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In this paper, the authors studied the effects of process and component/part commonality and uncertain factors (viz. lead time, machine breakdown etc.) on deliverable parameters of a multi product, multi-period and multistage dependent... more
In this paper, the authors studied the effects of process and component/part commonality and uncertain factors (viz. lead time, machine breakdown etc.) on deliverable parameters of a multi product, multi-period and multistage dependent demand manufacturing environment. The throughput of finished products and average production time of the system are examined for various experimental scenarios on the basis of existing manufacturing setup of a company consisting of multiple end products. Simulation package, namely WITNESS is used to simulate/analyze the situations of the production lines. Simulation models are developed, verified and validated with the historical data from the company. It is found that inclusion of common components in manufacturing system is always beneficial over the non-commonality environment, especially i) in uncertain situations, ii) for long procurement lead time of components and iii) when the number of parts increase in the system. Impacts of machine breakdow...
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Research Interests: Business, Engineering, Computer Science, Economics, Item Response Theory, and 15 moreEngineering Product Design, Culture, Industrial Engneering, Collaboration Technology, Advanced Materials, Digital Identity, Cooperation, Global virtual teams, Diffusion of Innovation, Empirical, Empirical Research, CFA, Collaborative Innovation Networks, Collaborative Tools, and EFA
The main objective of this work is to develop a system consisting of Hardware and Software to drive Unmanned Ground Vehicle (UGV). UGVs are robotic platforms that are used as an extension of human capability. This type of robot is... more
The main objective of this work is to develop a system consisting of Hardware and Software to drive Unmanned Ground Vehicle (UGV). UGVs are robotic platforms that are used as an extension of human capability. This type of robot is generally capable of operating outdoors and over a wide variety of terrain, functioning in place of humans. So it can be used in national defense to perform reconnaissance and strike missions in urban environments, and by civilian teams to conduct search and rescue operations in hazardous terrain. The software system is used to control the UGV through computer from remote place by using satellite; the software gives it the waypoint/path-location. The robotic arm is used to carry spy weapons or to pick objects for the collection of data or to rescue with the help of its own color recognition system. The system is working efficiently as directed with acceptable precision.
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An experimental investigation has been carried out to study the pressure drop and turbulent flow heat transfer to air in a tube with wire-coil inserts with a varying pitch. Four test sections with four mild steel wire coils of different... more
An experimental investigation has been carried out to study the pressure drop and turbulent flow heat transfer to air in a tube with wire-coil inserts with a varying pitch. Four test sections with four mild steel wire coils of different pitches (P = 12, 24, 40, and 50 mm with ...
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Research Interests: Engineering, Carbon Dioxide, Comparative Historical Analysis, Automotive Engineering, Alternative Fuels, and 15 moreData acquisition, Carnot engines, Diesel engines, Compressed Natural Gas, Applied Thermal Engineering, Automobile Engines, CNG business, Computer Control Systems, Emission, Brake Specific Fuel Consumption, Brake Thermal Efficiency, Engine Brakes, Brakes, Engine Cylinders, and Automobile Parts and Equipment
Use of common parts for different products (commonality) is important methods for managing product variety and preserving competitiveness in the age of mass customization and supply chain competition. In literature, the advantages of... more
Use of common parts for different products (commonality) is important methods for managing product variety and preserving competitiveness in the age of mass customization and supply chain competition. In literature, the advantages of inclusion of common components in a product family are well established. Unfortunately, most of the works have been conducted via simulation or conceptual thinking. The mathematical models in the premises are not adequate for production, planning and control in multistage production. This paper focuses on the advancement of venerable manufacturing resources planning models by incorporating the part commonality concept in a multiproduct, multi-period and multistage manufacturing system under a deterministic situation. The models are validated with established MRPII models. The material requirement schedule for the basic MRP II and proposed models are compared. It is really a good matching shown between the two schedules. The later bearing additional info...
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The work desires: i) to determine the optimum level of batch size in bottleneck facility and ii) to analyze the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system under... more
The work desires: i) to determine the optimum level of batch size in bottleneck facility and ii) to analyze the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system under uncertainties. The uncertainty is created by machine breakdown and quality variation. Few simulation models are developed based on a live case from a company. The models are verified and validated with the historical data from the company and by face validity. Taguchi approach for orthogonal ...
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... pages 293-300. Experimental Study of Fluid Flow and Heat Transfer in a Rectangular Channel with Novel Longitudinal Vortex Generators Chengying Qi , Chunhua Min, Shangqun Xie, Xiangfei Kong pages 301-311. Fluted Helix ...
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Abstract: The main purpose of this paper is to present case study on how a theory driven real time empirical investigation can offset the quality related problems and bring better results in other performance dimensions. A systematic... more
Abstract: The main purpose of this paper is to present case study on how a theory driven real time empirical investigation can offset the quality related problems and bring better results in other performance dimensions. A systematic approach and application of the basic and advanced management tools and techniques are used to solve the part rejection problems in a plastic moulding manufacturing plant. In order to illustrate this, the study focused on joint application of PDCA and 5S approaches. Analysis has shown that the current average ...
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The main purposes of this paper are to enhance the understanding of commonality models in manufacturing resource planning by documenting the current state of affairs, and to stimulate fruitful future research by identifying gaps between... more
The main purposes of this paper are to enhance the understanding of commonality models in manufacturing resource planning by documenting the current state of affairs, and to stimulate fruitful future research by identifying gaps between the relevant issues and available academic literature. This paper is based on a comprehensive review of the articles from authentic publications on resources commonality for the various product mixes and the pertinent models. The papers are analyzed to identify the current scenarios and draw ...
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ABSTRACT
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Abstract: A reliable, affordable and secure supply of energy is important for economic development. This has been true for the past and present and will remain valid for the future. However, over time, changes have taken and will take... more
Abstract: A reliable, affordable and secure supply of energy is important for economic development. This has been true for the past and present and will remain valid for the future. However, over time, changes have taken and will take place with regard to energy use, ...
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Corresponding Author: MA Wazed, Department of Engineering Design & Manufacture, Faculty of Engineering, University of Malaya (UM), 50603 Kuala Lumpur, Malaysia (Phone: 60-143-605425; E-mail: awazed@gmail.com. 1904 ... Project Management... more
Corresponding Author: MA Wazed, Department of Engineering Design & Manufacture, Faculty of Engineering, University of Malaya (UM), 50603 Kuala Lumpur, Malaysia (Phone: 60-143-605425; E-mail: awazed@gmail.com. 1904 ... Project Management Maturity ...
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Electronic copy available at: http://ssrn.com/abstract=1502362 ... Australian Journal of Basic and Applied Sciences, 2(4): 987-996, 2008 ISSN 1991-8178 © 2008, INSInet Publication ... Corresponding Author: MA Wazed, Department of... more
Electronic copy available at: http://ssrn.com/abstract=1502362 ... Australian Journal of Basic and Applied Sciences, 2(4): 987-996, 2008 ISSN 1991-8178 © 2008, INSInet Publication ... Corresponding Author: MA Wazed, Department of Engineering Design & Manufacture, ...
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Abstract: The work explores the optimum level of batch size in bottleneck facility and the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system in an uncertain environment created by... more
Abstract: The work explores the optimum level of batch size in bottleneck facility and the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system in an uncertain environment created by machine breakdown and quality variation. Few simulation models are developed based on a live case from a company. The models are verified and validated with the historical data from the company and by face validity. Taguchi approaches for orthogonal array are used in designing experiments and ...
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The work desires: 1) to determine the optimum level of batch size in bottleneck facility; 2) to analyse the effect of common processes on throughput and cycle time in a multistage production system under machine breakdown and quality... more
The work desires: 1) to determine the optimum level of batch size in bottleneck facility; 2) to analyse the effect of common processes on throughput and cycle time in a multistage production system under machine breakdown and quality uncertainty.
Résumé/Abstract An experimental investigation has been carried out for turbulent flow in a tube with perforated twisted tape inserts. The mild steel twisted tape inserts with circular holes of different diameters (ie, perforation) are... more
Résumé/Abstract An experimental investigation has been carried out for turbulent flow in a tube with perforated twisted tape inserts. The mild steel twisted tape inserts with circular holes of different diameters (ie, perforation) are used in the flow field. An intensive laboratory study is conducted for heat transfer and pressure drop characteristics in the tubes for turbulent flow with various airflow rates. Heat transfer and pressure drop data are engendered for a wide range Reynolds number (1.3× 10 4―5.2× 10 4).
ABSTRACT An experimental investigation has been carried out for turbulent flow in a circular tube with a porous/perforated twisted tape insert. Heat transfer and pressure drop characteristics are examined in tubes with perforated twisted... more
ABSTRACT An experimental investigation has been carried out for turbulent flow in a circular tube with a porous/perforated twisted tape insert. Heat transfer and pressure drop characteristics are examined in tubes with perforated twisted tape inserts for turbulent flow. The air velocity, temperature, tube wall temperature, and pressure drop are measured both for smooth/plain tubes and tubes with perforated twisted tape inserts for a wide range of Reynolds numbers (1.3× 10 4 to 5.2× 10 4).
Abstract The main objective of this work is to develop a system consisting of Hardware and Software to drive Unmanned Ground Vehicle (UGV). UGVs are robotic platforms that are used as an extension of human capability. This type of robot... more
Abstract The main objective of this work is to develop a system consisting of Hardware and Software to drive Unmanned Ground Vehicle (UGV). UGVs are robotic platforms that are used as an extension of human capability. This type of robot is generally capable of operating outdoors and over a wide variety of terrain, functioning in place of humans.
Abstract: The work explores the optimum level of batch size in bottleneck facility and the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system in an uncertain environment created by... more
Abstract: The work explores the optimum level of batch size in bottleneck facility and the effect of common components on work-in-process (WIP) level and cycle time in a multistage production system in an uncertain environment created by machine breakdown and quality variation. Few simulation models are developed based on a live case from a company. The models are verified and validated with the historical data from the company and by face validity.