This study aims to review wind morphing technology. Wing morphing is a newly emerging field of re... more This study aims to review wind morphing technology. Wing morphing is a newly emerging field of research in aeronautical engineering, which generally deals with supplanting the traditional wing flight dynamics and making it more efficient. This paper highlights the major advances in the field of research such that an overview of the methodology and findings of the researchers is provided. This is achieved by categorizing wing morphing and defining each of its types and then providing examples from past research. It is a qualitative study, and data were gathered from journal articles, conference papers, reports, and books. This study analyzed various types of wing morphing techniques prevalent now. Three major types of wing morphing technologies, including Planform, Out-of-Plane, and Airfoil morphing, along with their subtypes, have been discussed. This study is relevant in current times as morphing has developed significantly in recent years. It is a concise and comprehensive overview of the types of structural wing morphing for fixed wings. It hence is useful as a beginner's read into the vast world of futuristic-aerodynamic research.
International Journal of Technology and Engineering Studies , 2021
This study presents shielding effectiveness, complex permeability, and complex permittivity of Mu... more This study presents shielding effectiveness, complex permeability, and complex permittivity of Multi-Walled Carbon Nanotube (MWCNTs) based Radiation Absorbent Material (RAM) coatings in X-Band (8-12 GHz). This study utilized Scanning Electron Microscope (SEM) analysis. RAM coatings were developed using polyurethane dispersion and MWCNTs filler. A series network analyzer tested the prepared coating applied on glass fiber substrate and analyzed it by scanning electron microscope. Results show that shielding effectiveness, relative permittivity, and permeability increase with increased concentration of MWCNT in prepared RAM coating. The sample showed maximum shielding effectiveness with a maximum concentration of MWCNTs. This study presents a comparison between the shielding effectiveness results with different MWCNTs concentrations, which have never been done before, and it carries immense applications in the defense and aerospace sectors.
Wind load on flexible bridge structure has various structural effects. Catastrophic effect becaus... more Wind load on flexible bridge structure has various structural effects. Catastrophic effect because of wind load which is called flutter phenomenon will make structural failure rapid. Resonance induced vibration is the other wind load phenomenon which not only includes catastrophic failure but has a long-term effect and discomfort effect because of the structural vibration. Vortex is a typical rotational flow in the wake of an obstacle. The flow fluctuates in such a pattern which is known as Von Karman Vortex trails. If the frequency of vortex fluctuation coincides with one of the flexible structure natural frequency, a resonance phenomenon occurs. The phenomenon is called Vortex Induced Vibration (VIV). Vortex induced vibration depends on the natural frequency of the structure, dynamic wind load, and geometry of the structure. VIV can make the bridge vibrate with large amplitude and it can make the structure failure, if the VIV phenomenon occurs in the long period and the structure cannot withstand the dynamic load. It is very important to reduce the vibration when the VIV occurs in the flexible bridge. This paper presents the use of the Tuned Mass Damper (TMD) to reduce vibration because of vortex induced vibration at a flexible bridge. By using wind tunnel test and finite element analysis, the research shows that passive TMD is effective to reduce the vibration at flexible bridge when the VIV occurs. The highest vibration reduction occurs when the frequency of TMD coincides with the frequency of force vibration.
Zero energy building design could be realized by passive design. Having energy conservation conce... more Zero energy building design could be realized by passive design. Having energy conservation concepts and active mechanical renewable energy generation systems could be considered as passive technique. This concept becomes a very interesting technique in countries that consume a lot of energy for their domestic sector. The purpose of the recent paper is to investigate the effect of hybrid construction material that merges phase change material, PCM walls for heat load minimization and transparent solar cells, and TSC in the windows for electricity generation for the purpose of illumination in such typical design. PCMs could be used for storing thermal energy and utilizing this energy during different annual seasons by absorption or release mechanisms to keep the building's inside temperature at thermal comfort state. While TSC,s are substances that allow partial Sun light penetration for illumination during day and use the other part for electricity generation at night. The paper introduce a typical architectural design for residential building that utilizes such type of constructional material for energy saving and analyzes thermal effectiveness of using PCM and power production effectiveness of using TSC as passive technique integrated with the zero-energy building envelope. Proper modeling tool has been used to investigate the impact of these materials on the thermal comfort perceived by the occupants. Results show that using such type of hybrid materials reduces annual energy consumption. It has been concluded that the passive structural heat isolation and power production material is a very effective manner in countries like Iraq which has severe temperature differences between summer and winter seasons.
In recent years, online shopping has greatly promoted the development of the logistics industry. ... more In recent years, online shopping has greatly promoted the development of the logistics industry. Logistics path planning has become a hot research topic among many researchers. Although path planning has been discussed by several previous studies, some real logistics conditions are not considered like obstacle and road slope. This paper presents a novel proposal to solve the problem of path planning for logistic vehicle based on Ant Colony Optimization (ACO) algorithm in the environment in which exists the obstacle. There are two kinds of environment in the path planner application, one is a single obstacle placed between the starting point and the terminal point in a known map which is recognized, then uses the ACO to find an optimal path with the capability to avoid impact with the obstacle for a logistics vehicle. The other works in the model with multi-obstacle and the same map as before to explore whether the best path solution can be found successfully by the ACO algorithm. Through experimental evaluations, the AOC can be verified to solve the path planning problem in the static, the grid and muti-obstacles environment model. Additionally , different from the common path planning algorithm, the size of the logistics vehicle is considered, the situation of touching the fringes of obstacles could be avoided, which is able to apply the logistic vehicle in the real environment.
In recent years, the somatosensory technology has been used widely in the game industry. Moreover... more In recent years, the somatosensory technology has been used widely in the game industry. Moreover, it is also used widely for the purpose of rehabilitation, motion capture, input/output interfaces, and so on. Meanwhile the development and application of VR and AR have also become a hot trend. In many scenes of virtual reality environments or movies, a large number of plants often appear to present a natural landscape. In the field of Computer Graphics, Lindenmayer system or L-system for short is the mainstream method of simulating the growth of plants. The L-system is a parallel rewriting system which consists of axiom, the number of iteration, angle and production rules. In this paper, we integrate the motion-capture technique of Kinect 2, the plant growth simulation of L-system, and Unity to implement a somatosensory Edutainment System. This system provides users interesting and interactive experience of growing plants in real-time. The user can swing his/her body to control the virtual tree growth in the beginning. After that, the virtual tree will swing its branches as user did, just like the Ents in the fantasy world. Finally, users can wear HTC VIVE HMD to observe their own generated trees. We look forward to increasing users' awareness and care about the environment through our system.
This research is to study the appropriate factors to increase the strength of the sealed packets ... more This research is to study the appropriate factors to increase the strength of the sealed packets containing seasoning sauce to experiments. This study began with the introduction of cause and effect diagram to analyze the factors that affect the s strength of seals. From the evaluation of several factors involved and found that the 3 factors may affect the strength of seals which are sealing temperature, speed in film feeding, and degree of shut-off valves. Therefore, an experimental design has been conducted by Central Composite Design to analyze the optimal conditions of the packaging, and using Response Surface Methodology to find the best value and it was found that the temperature sealing at 126 o C, film feeding 18 rpm and degree of shut-off valves at 115 degrees, given the maximum strength of the top and bottom seals. After the application of the experimental result, the strength of the sealing on top increased from 34 N to 56 N or 64.71% more, the standard deviation decreased from 3.14 to 2.92, or a decrease of 7.01% and the strength of seals at the bottom increased from the original 34 N to 55 N, or 61.77% more, the standard deviation decreased from 3.21 to 2.98, or decreased 7.17%. The result of improvement has determined to decrease the waste caused by sealing down from 81.5% to 3.68%, causing the waste of the packaging process reduce from 7.84% to 2.47% or down by 5.37% but the quality of seasoning sauce remain the same. This project has achieved the objective of the study.
The activity in the high-voltage environment is at risk of being injured by electric shock. The s... more The activity in the high-voltage environment is at risk of being injured by electric shock. The safety of personnel in and around electric power installations has been a prime concern. Specifically, this safety is generally in terms of the allowable touch and step voltages. These voltages are related to the ground resistance of human foot. In order to increase the safety of personnel, a high resistivity surface layer of gravel normally exists in the substation switchyards or other high-voltage areas. The thickness of this layer will affect the calculation of the ground resistance of human foot. Among them, the electromagnetic field and humidity factors are also considered in this paper. As a result, the surface layer of gravel can be used to reduce the earthing resistance of human foot. The equivalent model of human foot was modeled by the circular plate conductor in the past, which considered the beauty of the environment. Most of the transmission lines are in the surface, so the transmission line generated by the discrete current will affect the earthing resistance estimation. Thus, the proposed paper will consider the composition of the Green's function which is the mathematical calculus popularized by the basic theorem of calculus. On the other hand, the damp ingredients and temperatures on the surface will also be considered in this paper. This paper researches into the proposed method for estimating the ground resistance of human foot and proposes an equivalent model for calculating the earthing resistance of human foot. A comparison of the method is also shown in this paper.
The Battery Management System design is one of the most up-to-date topics of electric vehicles an... more The Battery Management System design is one of the most up-to-date topics of electric vehicles and alternative energy systems today. Battery behavior changes over time as the number of charge/discharge cycles increases and aging effects. In order to ensure long battery life and maintain its performance, the Battery Management System must monitor the battery status correctly. To do this, there is a need for a model that accurately expresses the battery dynamics. In this study, three filters were used for estimation of State of Charge using electrochemical model. These filters have been tested using 10 different drive cycle speed profiles. The results were evaluated considering the need for filter performances to be operable on a vehicle.
Retort pouch is one kind of flexible packaging which is made from plastic film or aluminum foil l... more Retort pouch is one kind of flexible packaging which is made from plastic film or aluminum foil laminating together. Generally, retort pouches will use adhesive to combine each layer of film or foil together. If the lamination between each layer is not good enough, the delamination of each layer might occur. Therefore, the effects of corona treatment on surface of aluminum foil for retort pouch (PET/Al/CPP) were studied. This research was aimed to compare bond strength ability of Al/CPP layer, seal strength, and tensile strength of laminated film (PET/Al/CPP), both before and after sterilization. Moreover, it was aimed to compare the shelf life of laminated film (PET/Al/CPP) that held ketchup and tuna for a period of 7, 14, 21, and 30 days. There were five samples used in this experiment, the laminated film without corona treatment on Al surface and the laminated film with corona treatment on Al surface at 2, 2.5, 3, and 4 kW. The results showed that the laminated film with corona treatment (in all levels) on aluminum surface had higher bond strength, seal strength, and tensile strength than the laminated film without corona treatment on aluminum surface. The results of the shelf life of laminated film (PET/Al/CPP) that held ketchup and tuna paste for a period of 7, 14, 21, and 30 days showed that the bond strength ability of the film without corona treatment on aluminum decreased and the laminated film was delaminated on Al/CPP layer. In a way, the bond strength ability of laminated film with corona treatment (in all levels) on aluminum slightly decreased. It was also indicated that the level of voltage on corona treatment did not statistically affect bond strength ability of Al/CPP layer, and seal strength and tensile strength of laminated film (PET/Al/CPP).
In recent years, flaming-that is, hostile or insulting interaction-on social media has been a pro... more In recent years, flaming-that is, hostile or insulting interaction-on social media has been a problem. To avoid or minimize flaming, enabling the system to automatically check messages before posting to determine whether they include expressions that are likely to trigger flaming can be helpful. We target two types of harmful expressions: insulting expressions and expressions that are likely to cause a quarrel. We first constructed an original harmful expressions dictionary. To minimize the cost of collecting the expressions, we built our dictionary semi-automatically by using word distributed representations. The method used distributed representations of harmful expressions and general expressions as features, and constructed a classifier of harmful/general expressions based on these features. An evaluation experiment found that the proposed method was able to extract harmful expressions with an accuracy of approximately 70%. The proposed method was also able to extract unknown expressions; however, it tended to wrongly extract non-harmful expressions. The method is able to determine unknown harmful expressions not included in the basic dictionary and can identify semantic relationships among harmful expressions. Although the method cannot presently be applied directly to multi-word expressions, it should be possible to add such a capability by introducing time-series learning.
Most of polymers can be recycled and reused to make new products or new inventions. Basically, so... more Most of polymers can be recycled and reused to make new products or new inventions. Basically, some of the clothes were made up from polymer and it can be recycled as a compound or filler material in the process of injection moulding. The purpose of this research is to investigate the potential of recycling used clothes made from polyester, as a colouring agent for plastic product through the injection moulding process. This research started with shredding the used clothes into a powder and mixing the clothes powder with Polypropylene-Nanoclay Nanocom-posites (PPNC). The samples were produced in three different colours which were red, blue, and yellow according to the colour of the recycled cloth. All samples produced from this process went to several testing, such as tensile, warpage, shrinkage, and thermal analysis. According to the results, each of the samples produced the same colour as the used clothes which were red, blue, and yellow. Besides that, the highest value of Youngs Modulus for sample of used clothes was 525 MPa, which was better than the samples of unused clothes. The quality of the samples was better when the values of warpage and shrinkage were acceptable, which were in the range of 0.01 mm to 0.048 mm for warpage and 0.0141% to 0.0156% of shrinkage. Based on the thermal analysis, the peak temperature was 167.2 • C which is not far different from pristine polypropylene. The outcome of this research should be beneficial in the future of plastic manufacturing process, in terms reducing cost of raw material and, at the same time, the environmental pollution impact also can be reduced.
, " Postharvest applications of chitosan and plastic wrapping to mangosteen fruits of different f... more , " Postharvest applications of chitosan and plastic wrapping to mangosteen fruits of different fruit stages in affecting fruit shelf-life and qualities,
This study aims to review wind morphing technology. Wing morphing is a newly emerging field of re... more This study aims to review wind morphing technology. Wing morphing is a newly emerging field of research in aeronautical engineering, which generally deals with supplanting the traditional wing flight dynamics and making it more efficient. This paper highlights the major advances in the field of research such that an overview of the methodology and findings of the researchers is provided. This is achieved by categorizing wing morphing and defining each of its types and then providing examples from past research. It is a qualitative study, and data were gathered from journal articles, conference papers, reports, and books. This study analyzed various types of wing morphing techniques prevalent now. Three major types of wing morphing technologies, including Planform, Out-of-Plane, and Airfoil morphing, along with their subtypes, have been discussed. This study is relevant in current times as morphing has developed significantly in recent years. It is a concise and comprehensive overview of the types of structural wing morphing for fixed wings. It hence is useful as a beginner's read into the vast world of futuristic-aerodynamic research.
International Journal of Technology and Engineering Studies , 2021
This study presents shielding effectiveness, complex permeability, and complex permittivity of Mu... more This study presents shielding effectiveness, complex permeability, and complex permittivity of Multi-Walled Carbon Nanotube (MWCNTs) based Radiation Absorbent Material (RAM) coatings in X-Band (8-12 GHz). This study utilized Scanning Electron Microscope (SEM) analysis. RAM coatings were developed using polyurethane dispersion and MWCNTs filler. A series network analyzer tested the prepared coating applied on glass fiber substrate and analyzed it by scanning electron microscope. Results show that shielding effectiveness, relative permittivity, and permeability increase with increased concentration of MWCNT in prepared RAM coating. The sample showed maximum shielding effectiveness with a maximum concentration of MWCNTs. This study presents a comparison between the shielding effectiveness results with different MWCNTs concentrations, which have never been done before, and it carries immense applications in the defense and aerospace sectors.
Wind load on flexible bridge structure has various structural effects. Catastrophic effect becaus... more Wind load on flexible bridge structure has various structural effects. Catastrophic effect because of wind load which is called flutter phenomenon will make structural failure rapid. Resonance induced vibration is the other wind load phenomenon which not only includes catastrophic failure but has a long-term effect and discomfort effect because of the structural vibration. Vortex is a typical rotational flow in the wake of an obstacle. The flow fluctuates in such a pattern which is known as Von Karman Vortex trails. If the frequency of vortex fluctuation coincides with one of the flexible structure natural frequency, a resonance phenomenon occurs. The phenomenon is called Vortex Induced Vibration (VIV). Vortex induced vibration depends on the natural frequency of the structure, dynamic wind load, and geometry of the structure. VIV can make the bridge vibrate with large amplitude and it can make the structure failure, if the VIV phenomenon occurs in the long period and the structure cannot withstand the dynamic load. It is very important to reduce the vibration when the VIV occurs in the flexible bridge. This paper presents the use of the Tuned Mass Damper (TMD) to reduce vibration because of vortex induced vibration at a flexible bridge. By using wind tunnel test and finite element analysis, the research shows that passive TMD is effective to reduce the vibration at flexible bridge when the VIV occurs. The highest vibration reduction occurs when the frequency of TMD coincides with the frequency of force vibration.
Zero energy building design could be realized by passive design. Having energy conservation conce... more Zero energy building design could be realized by passive design. Having energy conservation concepts and active mechanical renewable energy generation systems could be considered as passive technique. This concept becomes a very interesting technique in countries that consume a lot of energy for their domestic sector. The purpose of the recent paper is to investigate the effect of hybrid construction material that merges phase change material, PCM walls for heat load minimization and transparent solar cells, and TSC in the windows for electricity generation for the purpose of illumination in such typical design. PCMs could be used for storing thermal energy and utilizing this energy during different annual seasons by absorption or release mechanisms to keep the building's inside temperature at thermal comfort state. While TSC,s are substances that allow partial Sun light penetration for illumination during day and use the other part for electricity generation at night. The paper introduce a typical architectural design for residential building that utilizes such type of constructional material for energy saving and analyzes thermal effectiveness of using PCM and power production effectiveness of using TSC as passive technique integrated with the zero-energy building envelope. Proper modeling tool has been used to investigate the impact of these materials on the thermal comfort perceived by the occupants. Results show that using such type of hybrid materials reduces annual energy consumption. It has been concluded that the passive structural heat isolation and power production material is a very effective manner in countries like Iraq which has severe temperature differences between summer and winter seasons.
In recent years, online shopping has greatly promoted the development of the logistics industry. ... more In recent years, online shopping has greatly promoted the development of the logistics industry. Logistics path planning has become a hot research topic among many researchers. Although path planning has been discussed by several previous studies, some real logistics conditions are not considered like obstacle and road slope. This paper presents a novel proposal to solve the problem of path planning for logistic vehicle based on Ant Colony Optimization (ACO) algorithm in the environment in which exists the obstacle. There are two kinds of environment in the path planner application, one is a single obstacle placed between the starting point and the terminal point in a known map which is recognized, then uses the ACO to find an optimal path with the capability to avoid impact with the obstacle for a logistics vehicle. The other works in the model with multi-obstacle and the same map as before to explore whether the best path solution can be found successfully by the ACO algorithm. Through experimental evaluations, the AOC can be verified to solve the path planning problem in the static, the grid and muti-obstacles environment model. Additionally , different from the common path planning algorithm, the size of the logistics vehicle is considered, the situation of touching the fringes of obstacles could be avoided, which is able to apply the logistic vehicle in the real environment.
In recent years, the somatosensory technology has been used widely in the game industry. Moreover... more In recent years, the somatosensory technology has been used widely in the game industry. Moreover, it is also used widely for the purpose of rehabilitation, motion capture, input/output interfaces, and so on. Meanwhile the development and application of VR and AR have also become a hot trend. In many scenes of virtual reality environments or movies, a large number of plants often appear to present a natural landscape. In the field of Computer Graphics, Lindenmayer system or L-system for short is the mainstream method of simulating the growth of plants. The L-system is a parallel rewriting system which consists of axiom, the number of iteration, angle and production rules. In this paper, we integrate the motion-capture technique of Kinect 2, the plant growth simulation of L-system, and Unity to implement a somatosensory Edutainment System. This system provides users interesting and interactive experience of growing plants in real-time. The user can swing his/her body to control the virtual tree growth in the beginning. After that, the virtual tree will swing its branches as user did, just like the Ents in the fantasy world. Finally, users can wear HTC VIVE HMD to observe their own generated trees. We look forward to increasing users' awareness and care about the environment through our system.
This research is to study the appropriate factors to increase the strength of the sealed packets ... more This research is to study the appropriate factors to increase the strength of the sealed packets containing seasoning sauce to experiments. This study began with the introduction of cause and effect diagram to analyze the factors that affect the s strength of seals. From the evaluation of several factors involved and found that the 3 factors may affect the strength of seals which are sealing temperature, speed in film feeding, and degree of shut-off valves. Therefore, an experimental design has been conducted by Central Composite Design to analyze the optimal conditions of the packaging, and using Response Surface Methodology to find the best value and it was found that the temperature sealing at 126 o C, film feeding 18 rpm and degree of shut-off valves at 115 degrees, given the maximum strength of the top and bottom seals. After the application of the experimental result, the strength of the sealing on top increased from 34 N to 56 N or 64.71% more, the standard deviation decreased from 3.14 to 2.92, or a decrease of 7.01% and the strength of seals at the bottom increased from the original 34 N to 55 N, or 61.77% more, the standard deviation decreased from 3.21 to 2.98, or decreased 7.17%. The result of improvement has determined to decrease the waste caused by sealing down from 81.5% to 3.68%, causing the waste of the packaging process reduce from 7.84% to 2.47% or down by 5.37% but the quality of seasoning sauce remain the same. This project has achieved the objective of the study.
The activity in the high-voltage environment is at risk of being injured by electric shock. The s... more The activity in the high-voltage environment is at risk of being injured by electric shock. The safety of personnel in and around electric power installations has been a prime concern. Specifically, this safety is generally in terms of the allowable touch and step voltages. These voltages are related to the ground resistance of human foot. In order to increase the safety of personnel, a high resistivity surface layer of gravel normally exists in the substation switchyards or other high-voltage areas. The thickness of this layer will affect the calculation of the ground resistance of human foot. Among them, the electromagnetic field and humidity factors are also considered in this paper. As a result, the surface layer of gravel can be used to reduce the earthing resistance of human foot. The equivalent model of human foot was modeled by the circular plate conductor in the past, which considered the beauty of the environment. Most of the transmission lines are in the surface, so the transmission line generated by the discrete current will affect the earthing resistance estimation. Thus, the proposed paper will consider the composition of the Green's function which is the mathematical calculus popularized by the basic theorem of calculus. On the other hand, the damp ingredients and temperatures on the surface will also be considered in this paper. This paper researches into the proposed method for estimating the ground resistance of human foot and proposes an equivalent model for calculating the earthing resistance of human foot. A comparison of the method is also shown in this paper.
The Battery Management System design is one of the most up-to-date topics of electric vehicles an... more The Battery Management System design is one of the most up-to-date topics of electric vehicles and alternative energy systems today. Battery behavior changes over time as the number of charge/discharge cycles increases and aging effects. In order to ensure long battery life and maintain its performance, the Battery Management System must monitor the battery status correctly. To do this, there is a need for a model that accurately expresses the battery dynamics. In this study, three filters were used for estimation of State of Charge using electrochemical model. These filters have been tested using 10 different drive cycle speed profiles. The results were evaluated considering the need for filter performances to be operable on a vehicle.
Retort pouch is one kind of flexible packaging which is made from plastic film or aluminum foil l... more Retort pouch is one kind of flexible packaging which is made from plastic film or aluminum foil laminating together. Generally, retort pouches will use adhesive to combine each layer of film or foil together. If the lamination between each layer is not good enough, the delamination of each layer might occur. Therefore, the effects of corona treatment on surface of aluminum foil for retort pouch (PET/Al/CPP) were studied. This research was aimed to compare bond strength ability of Al/CPP layer, seal strength, and tensile strength of laminated film (PET/Al/CPP), both before and after sterilization. Moreover, it was aimed to compare the shelf life of laminated film (PET/Al/CPP) that held ketchup and tuna for a period of 7, 14, 21, and 30 days. There were five samples used in this experiment, the laminated film without corona treatment on Al surface and the laminated film with corona treatment on Al surface at 2, 2.5, 3, and 4 kW. The results showed that the laminated film with corona treatment (in all levels) on aluminum surface had higher bond strength, seal strength, and tensile strength than the laminated film without corona treatment on aluminum surface. The results of the shelf life of laminated film (PET/Al/CPP) that held ketchup and tuna paste for a period of 7, 14, 21, and 30 days showed that the bond strength ability of the film without corona treatment on aluminum decreased and the laminated film was delaminated on Al/CPP layer. In a way, the bond strength ability of laminated film with corona treatment (in all levels) on aluminum slightly decreased. It was also indicated that the level of voltage on corona treatment did not statistically affect bond strength ability of Al/CPP layer, and seal strength and tensile strength of laminated film (PET/Al/CPP).
In recent years, flaming-that is, hostile or insulting interaction-on social media has been a pro... more In recent years, flaming-that is, hostile or insulting interaction-on social media has been a problem. To avoid or minimize flaming, enabling the system to automatically check messages before posting to determine whether they include expressions that are likely to trigger flaming can be helpful. We target two types of harmful expressions: insulting expressions and expressions that are likely to cause a quarrel. We first constructed an original harmful expressions dictionary. To minimize the cost of collecting the expressions, we built our dictionary semi-automatically by using word distributed representations. The method used distributed representations of harmful expressions and general expressions as features, and constructed a classifier of harmful/general expressions based on these features. An evaluation experiment found that the proposed method was able to extract harmful expressions with an accuracy of approximately 70%. The proposed method was also able to extract unknown expressions; however, it tended to wrongly extract non-harmful expressions. The method is able to determine unknown harmful expressions not included in the basic dictionary and can identify semantic relationships among harmful expressions. Although the method cannot presently be applied directly to multi-word expressions, it should be possible to add such a capability by introducing time-series learning.
Most of polymers can be recycled and reused to make new products or new inventions. Basically, so... more Most of polymers can be recycled and reused to make new products or new inventions. Basically, some of the clothes were made up from polymer and it can be recycled as a compound or filler material in the process of injection moulding. The purpose of this research is to investigate the potential of recycling used clothes made from polyester, as a colouring agent for plastic product through the injection moulding process. This research started with shredding the used clothes into a powder and mixing the clothes powder with Polypropylene-Nanoclay Nanocom-posites (PPNC). The samples were produced in three different colours which were red, blue, and yellow according to the colour of the recycled cloth. All samples produced from this process went to several testing, such as tensile, warpage, shrinkage, and thermal analysis. According to the results, each of the samples produced the same colour as the used clothes which were red, blue, and yellow. Besides that, the highest value of Youngs Modulus for sample of used clothes was 525 MPa, which was better than the samples of unused clothes. The quality of the samples was better when the values of warpage and shrinkage were acceptable, which were in the range of 0.01 mm to 0.048 mm for warpage and 0.0141% to 0.0156% of shrinkage. Based on the thermal analysis, the peak temperature was 167.2 • C which is not far different from pristine polypropylene. The outcome of this research should be beneficial in the future of plastic manufacturing process, in terms reducing cost of raw material and, at the same time, the environmental pollution impact also can be reduced.
, " Postharvest applications of chitosan and plastic wrapping to mangosteen fruits of different f... more , " Postharvest applications of chitosan and plastic wrapping to mangosteen fruits of different fruit stages in affecting fruit shelf-life and qualities,
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