asegid tadesse - Academia.edu (original) (raw)

Papers by asegid tadesse

International journal of engineering research and technology, Jun 18, 2021

The goal of today's production strategy is to maximize the advantages of flexibility. Onl... more The goal of today's production strategy is to maximize the advantages of flexibility. Only when a manufacturing system is completely controlled by FMS technology is this possible. With the Process-Product Matrix in mind, it's feasible to see how an industry might achieve high flexibility via creative technological and organizational initiatives. A flexible cell is now defined as two or more CNC machines, while a flexible manufacturing system is defined as two or more cells. In computer science, system engineering, and many other areas, Petri nets are a strong modeling framework. Petri nets are a graphical description of the dynamic behavior of systems that combines a well-defined mathematical theory with a graphical representation of the dynamic behavior of systems. Because each of its aspects may be implemented in a number of ways and with varying degrees of complexity, the scatter search process is very adaptable. To handle scheduling challenges, the Petri Net idea is introduced and compared to the Scatter Search method. When the results of two case studies (9 machines X 2 jobs) are examined, it is shown that Petri Net outperforms Scatter Search in terms of machine usage.

International Journal of Progressive Research in Science and Engineering, Aug 15, 2020

This paper reviews research and development activities conducted over the past few decades on con... more This paper reviews research and development activities conducted over the past few decades on construction equipment management practices. It studies the prevention of vacuum created by the lack of proper material handling at construction sites. It is on the analysis of factors that affect the effective material management in building construction projects. Materials management is an important tool and factor in project management and control to improve productivity in construction projects. In order to execute a building project effectively, it is important to have the right materials in the right place at the right time. Many researchers have shown that construction materials and equipment can make up more than 60-70% of the total cost for a typical construction project. Improper handling and maintenance of materials on site can adversely affect project cost. Materials management practices need to be implemented on construction industry projects. A properly implemented materials management program can achieve a timely flow of materials and equipment for employment, resulting in better planning, increased labor productivity, better scheduling and lower project costs. In addition, proper maintenance of the material component improves the productivity and cost efficiency of a project and helps in completing construction projects on time and efficiently. One of the major problems of delay in construction projects is maintenance of materials and equipment. Therefore, it is necessary to study and implement material management practices in all construction industries. However, this review focuses on the various content management methods adopted on paper sites and discusses the advantages and disadvantages of content management on construction sites.

International journal of engineering research and technology, 2020

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type’s liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class...

This review paper deals through the review of diverse literature. The paper emphases on study of ... more This review paper deals through the review of diverse literature. The paper emphases on study of manually operated machines by different authors for the current development of the world using different designing and fabrication processes. Currently, extremely settled and very innovative machinery are available in the world. This is due to the presence of manually operated machine. For the growing countries like Africa, the condition of the manually operated small-scale equipment is playing a vital role in the national economy especially in the agricultural sectors. Although this sector is playing significant role but it is still at low level and many factors contributed for discouraging it. This paper review some of the investigation of manually operated smallscale machine for the development of advanced machineries for the current development of the world. And it compares the advancement of it. The reviews are from agricultural to highly powered machines. The review concluded that,...

International Journal of Innovative Research and Growth

International Journal of Innovative Research and Growth

IJERTV9IS090317, 2020

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type's liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class of routs of metal matrix composite. The addition of reinforcement in Al7075 improves specific strength, tensile, hardness and other properties of aluminium alloy .researchers shows, experiments with adding reinforcement material using diverse techniques of production which they are finding results for the event of material technology. This paper shows the rout of metal matrix composite production it evaluates the mechanical properties of Al7075.

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type's liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class of routs of metal matrix composite. The addition of reinforcement in Al7075 improves specific strength, tensile, hardness and other properties of aluminium alloy .researchers shows, experiments with adding reinforcement material using diverse techniques of production which they are finding results for the event of material technology. This paper shows the rout of metal matrix composite production it evaluates the mechanical properties of Al7075.

Composites materials are materials made from two or more constituent materials with significantly... more Composites materials are materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct within the finished structure. Basically, they can be categorized into two major types, i.e., structural composites with outstanding mechanical properties and functional composites with various outstanding physical, chemical or electrochemical properties. Metal matrix composites are ahead extensive approval for automobile, aerospace, agriculture farm machinery and many other industrial applications because of their essential properties such as high strength, low density, good wear resistance compared to any other metal. Metal matrix composite can be manufactured by various manufacturing techniques such as stir casting, powder metallurgy, pressure infiltration, squeeze casting, chemical vapor deposition etc. Reinforced material has an individual property which when incorporate to improve the properties of the base alloy. The reinforcements being used are whiskers, fibers, and particulates. An effort has been made to review the different combinations of the composites and how they affect the properties of the different alloys of aluminium. A comprehensive knowledge of the properties is provided in order to have an overall study of the composites and the best results can be employed for the further development of the Aluminium reinforced composed. This investigation shows that monolithic materials are highly replaced by metal matrix composites for better performance and longer life.

International journal of engineering research and technology, Jun 18, 2021

The goal of today's production strategy is to maximize the advantages of flexibility. Onl... more The goal of today's production strategy is to maximize the advantages of flexibility. Only when a manufacturing system is completely controlled by FMS technology is this possible. With the Process-Product Matrix in mind, it's feasible to see how an industry might achieve high flexibility via creative technological and organizational initiatives. A flexible cell is now defined as two or more CNC machines, while a flexible manufacturing system is defined as two or more cells. In computer science, system engineering, and many other areas, Petri nets are a strong modeling framework. Petri nets are a graphical description of the dynamic behavior of systems that combines a well-defined mathematical theory with a graphical representation of the dynamic behavior of systems. Because each of its aspects may be implemented in a number of ways and with varying degrees of complexity, the scatter search process is very adaptable. To handle scheduling challenges, the Petri Net idea is introduced and compared to the Scatter Search method. When the results of two case studies (9 machines X 2 jobs) are examined, it is shown that Petri Net outperforms Scatter Search in terms of machine usage.

International Journal of Progressive Research in Science and Engineering, Aug 15, 2020

This paper reviews research and development activities conducted over the past few decades on con... more This paper reviews research and development activities conducted over the past few decades on construction equipment management practices. It studies the prevention of vacuum created by the lack of proper material handling at construction sites. It is on the analysis of factors that affect the effective material management in building construction projects. Materials management is an important tool and factor in project management and control to improve productivity in construction projects. In order to execute a building project effectively, it is important to have the right materials in the right place at the right time. Many researchers have shown that construction materials and equipment can make up more than 60-70% of the total cost for a typical construction project. Improper handling and maintenance of materials on site can adversely affect project cost. Materials management practices need to be implemented on construction industry projects. A properly implemented materials management program can achieve a timely flow of materials and equipment for employment, resulting in better planning, increased labor productivity, better scheduling and lower project costs. In addition, proper maintenance of the material component improves the productivity and cost efficiency of a project and helps in completing construction projects on time and efficiently. One of the major problems of delay in construction projects is maintenance of materials and equipment. Therefore, it is necessary to study and implement material management practices in all construction industries. However, this review focuses on the various content management methods adopted on paper sites and discusses the advantages and disadvantages of content management on construction sites.

International journal of engineering research and technology, 2020

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type’s liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class...

This review paper deals through the review of diverse literature. The paper emphases on study of ... more This review paper deals through the review of diverse literature. The paper emphases on study of manually operated machines by different authors for the current development of the world using different designing and fabrication processes. Currently, extremely settled and very innovative machinery are available in the world. This is due to the presence of manually operated machine. For the growing countries like Africa, the condition of the manually operated small-scale equipment is playing a vital role in the national economy especially in the agricultural sectors. Although this sector is playing significant role but it is still at low level and many factors contributed for discouraging it. This paper review some of the investigation of manually operated smallscale machine for the development of advanced machineries for the current development of the world. And it compares the advancement of it. The reviews are from agricultural to highly powered machines. The review concluded that,...

International Journal of Innovative Research and Growth

International Journal of Innovative Research and Growth

IJERTV9IS090317, 2020

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type's liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class of routs of metal matrix composite. The addition of reinforcement in Al7075 improves specific strength, tensile, hardness and other properties of aluminium alloy .researchers shows, experiments with adding reinforcement material using diverse techniques of production which they are finding results for the event of material technology. This paper shows the rout of metal matrix composite production it evaluates the mechanical properties of Al7075.

Demands have been increased towards the result of lighter and energy-efficient materials for curr... more Demands have been increased towards the result of lighter and energy-efficient materials for current development of the world. Metal matrix composite is the best selected materials for research during this time due to the benefits of matrix and reinforcement combinations. For the combination matrix and reinforced materials, there is a series need of combination techniques. The techniques often classified in to two type's liquid and solid state processes. The most typical techniques for the production of liquid state processing materials are stir-casting techniques. Comparatively, it is simple and cost effective and provides a fairly uniform distribution of particles. This paper shows a direction for the assembly of metal matrix composite in the development of highly effective and improved properties using simple and effective techniques of productions. There are a various ways of production of MMCs. Friction stir casting, compo-casting, squeeze casting spray casting etc. are a class of routs of metal matrix composite. The addition of reinforcement in Al7075 improves specific strength, tensile, hardness and other properties of aluminium alloy .researchers shows, experiments with adding reinforcement material using diverse techniques of production which they are finding results for the event of material technology. This paper shows the rout of metal matrix composite production it evaluates the mechanical properties of Al7075.

Composites materials are materials made from two or more constituent materials with significantly... more Composites materials are materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct within the finished structure. Basically, they can be categorized into two major types, i.e., structural composites with outstanding mechanical properties and functional composites with various outstanding physical, chemical or electrochemical properties. Metal matrix composites are ahead extensive approval for automobile, aerospace, agriculture farm machinery and many other industrial applications because of their essential properties such as high strength, low density, good wear resistance compared to any other metal. Metal matrix composite can be manufactured by various manufacturing techniques such as stir casting, powder metallurgy, pressure infiltration, squeeze casting, chemical vapor deposition etc. Reinforced material has an individual property which when incorporate to improve the properties of the base alloy. The reinforcements being used are whiskers, fibers, and particulates. An effort has been made to review the different combinations of the composites and how they affect the properties of the different alloys of aluminium. A comprehensive knowledge of the properties is provided in order to have an overall study of the composites and the best results can be employed for the further development of the Aluminium reinforced composed. This investigation shows that monolithic materials are highly replaced by metal matrix composites for better performance and longer life.