4D printing is the method of 3D printing where the fourth dimension is the time and the shape or ... more 4D printing is the method of 3D printing where the fourth dimension is the time and the shape or structure of the printed body which can change with respect to time. Many researches have conducted experiments to find if this new idea of 4D printing would work and have become successful in their research among them Skylar Tibbits is the first person to start the research in association with Stratasys and Autodesk. Hence the objective of this research work was to review about the different experiments conducted by different researches and prove that 4D printing technology is possible. In the present work, a survey of 4D printing was carried out and the different experimental procedures were discussed. Also the specifications of the technology used to demonstrate the experiment and their advantages are discussed. Few researchers have used the concepts of shape memory polymers to demonstrate their experiment and few have used the upcoming technology of the water absorbing materials and hydrogels to demonstrate their experiments.More or less the different materials used to demonstrate give the same result but what differ with respect to each other is with respect to their properties such as cost, availability, chemical properties, physical properties and etc. Final conclusion of the present work was that this technology is sure to change the world when put into work but because of the complexity it would take time for this to become a reality. 3D printing has already captured our mind and adding fourth dimension to the equation would do wonders which anyone on earth has ever witnessed till date.
Increasing cost and power demand, leads to evaluation of new method to increase through productiv... more Increasing cost and power demand, leads to evaluation of new method to increase through productivity and help to solve the power demands. Many researchers have break through to increase the efficiency of a hydraulic power pack, one of the promising methods is the concept of regenerative. The objective of this research work is to increase the efficiency of a hydraulic circuit by introducing a concept of regenerative circuit. A Regenerative circuit is a system that is used to speed up the extension stroke of the double acting single rod hydraulic cylinder. The output is connected to the input in the directional control value. By this concept, increase in velocity of the piston and decrease the cycle time. For the research, a basic hydraulic circuit and a regenerative circuit are designated and compared both with their results. The analysis was based on their time taken for extension and retraction of the piston. From the detailed analysis of both the hydraulic circuits, it is found that the efficiency by introducing hydraulic regenerative circuit increased by is 5.3%. The obtained results conclude that, implementing hydraulic regenerative circuit in a hydraulic power pack decreases power consumption, reduces cycle time and increases productivity in a longer run.
IOP Conference Series: Materials Science and Engineering
Increasing cost and power demand, leads to evaluation of new method to increase through productiv... more Increasing cost and power demand, leads to evaluation of new method to increase through productivity and help to solve the power demands. Many researchers have break through to increase the efficiency of a hydraulic power pack, one of the promising methods is the concept of regenerative. The objective of this research work is to increase the efficiency of a hydraulic circuit by introducing a concept of regenerative circuit. A Regenerative circuit is a system that is used to speed up the extension stroke of the double acting single rod hydraulic cylinder. The output is connected to the input in the directional control value. By this concept, increase in velocity of the piston and decrease the cycle time. For the research, a basic hydraulic circuit and a regenerative circuit are designated and compared both with their results. The analysis was based on their time taken for extension and retraction of the piston. From the detailed analysis of both the hydraulic circuits, it is found that the efficiency by introducing hydraulic regenerative circuit increased by is 5.3%. The obtained results conclude that, implementing hydraulic regenerative circuit in a hydraulic power pack decreases power consumption, reduces cycle time and increases productivity in a longer run.
nternational journal of advanced research in computer and communication engineering, Dec 30, 2022
This research paper's primary goal is to is to demonstrate how to play a computer game using huma... more This research paper's primary goal is to is to demonstrate how to play a computer game using human gestures. The system's secondary goal is to develop a system that allows a player to play a game without using a physical controller. This system seeks to create a gesture recognition application. The system's attached camera or webcam may be used to identify human hand gestures. The operations on the Game will be performed with the game's basic gaming controls based on the analysis performed by the program on identifying human Hand Gestures. The software includes instructions for recognizing human hand motions. Hand motions should be made using the palms of the hands. The system will be divided into three sections: user interface, gesture recognition, and analysis. The user interface module provides the user with all of the necessary graphical user interface to register the user's arm positions for performing gestures. Gesture recognition by the Media pipe is a cross-platform library developed by Google that provides amazing ready-to-use ML solutions for computer vision tasks. Open CV library in python is a computer vision library that is widely used for image analysis, image processing, detection, recognition etc. This research paper will be accomplished with the help of OPEN CV.
Background: Neonatal pneumonia accounts for significant morbidity and mortality, especially in de... more Background: Neonatal pneumonia accounts for significant morbidity and mortality, especially in developing countries. Throughout childhood, the greatest risk of death from pneumonia is in the neonatal period. This study is done to study the risk factors and clinical characteristics of neonatal pneumonia. Aim of the study was to study the risk factors and clinical characteristics of neonatal pneumonia. Methods: This was a hospital-based observational study conducted in the department of paediatrics, Gandhi medical college and hospital, Hyderabad. A detailed antenatal and postnatal risk factors were taken, and the clinical signs and symptoms of neonatal pneumonia were noted. Results: Of the 100 neonates 30% of cases had early onset pneumonia and 70% had late onset pneumonia.50% of early onset pneumonia cases had antenatal risk factors. There is a statistically significant association of age of onset of pneumonia with gestational age (p=0.002) late onset pneumonia being more common >...
INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2022
Petroleum fuel prices are often rising due to the rapid depletion of natural resources, which are... more Petroleum fuel prices are often rising due to the rapid depletion of natural resources, which are exorbitantly expensive for the average consumer, especially in the situation in India. Therefore, C.I. The importance of alternative fuel engines for use in is increasing. Much research has been done on alternative fuels. Intensive research is being conducted in the area of improving the thermal efficiency of engines. This shows that in a naturally aspirated diesel engine, only one-third of the heat supplied is converted to work. Many methods are recommended by some experts and researchers to improve engine performance characteristics. The purpose of this study is to increase the swirl effect in the cylinder, improve performance and reduce emissions. In DI diesel engines, swirls can increase the mixing speed of fuel and air. The vortex interaction with the squish flow caused by compression increases the level of turbulence in the combustion bowl and promotes mixing. It is clear that the...
Circulation: Cardiovascular Quality and Outcomes, 2011
Background: There have been an increasing number of patients receiving implantable cardioverter d... more Background: There have been an increasing number of patients receiving implantable cardioverter defibrillators (ICDs) over the last decade. Although ICDs prevent arrhythmic death, patients may still develop other terminal illnesses, or progression of underlying heart failure. ICD- delivered shocks are associated with significant pain, anxiety and reduced quality of life. Therefore for this population of patients, it may become undesirable to receive shock therapy nearing the end of life. We reviewed the practices for ICD deactivation on a series of patients admitted to a hospice center. We hypothesized that for patients with ICDs, the frequency for ICD deactivation at end of life would be low. Methods: In this retrospective study we reviewed records of patients with ICDs who were admitted to the Hildebrandt Hospice Care Center, an inpatient hospice facility, in Rochester NY from January 2005 to December 2009. Information regarding patient's demographics, indications for ICD impl...
The latest developments in the area of hybrid materials evidenced the advantages of fibre metal l... more The latest developments in the area of hybrid materials evidenced the advantages of fibre metal laminates (FMLs) over the conventional homogeneous materials in automotive structures. In the current research study, tensile strength and flexural strength of aluminium alloy basalt fabric laminate with and without multi-walled carbon nanotubes (MW-CNT) fillers were compared. The proposed laminate sheets were fabricated using the conventional hand layup method, and the test samples were pierced from the fabricated laminates according to ASTM standards. Subsequently, uni-axial tensile test and three-point bending test were performed on the Universal Testing Machine. The results revealed that the tensile and flexural properties of the proposed FMLs were enhanced considerably after the incorporation of MW-CNT nanofillers into the epoxy matrix. These types of newly designed FML could be used as body components in automotive applications.
IOP Conference Series: Materials Science and Engineering, 2018
The performed studies in the area of petroleum engineering facilitate the shaping of a system of ... more The performed studies in the area of petroleum engineering facilitate the shaping of a system of fundamental knowledge that allows the future specialist to scientifically analyze the issues in one's professional domain, implement the obtained basic knowledge in practice, and independently digest the new information encountered during one's industrial and scientific activity while employing modern methods of research. Controlling the pressure and flow of fluids in pipelines remains a highly important task. For this reason, further studies to find new designs and technological solutions to optimize these processes are promising and relevant, allowing to increase the technical and economic performance indicators of the processes of supplying pressurized fluid.
International Journal of Oral Care and Research, 2020
Orthodontic treatment improves facial and smile esthetics along with oral function and psychosoci... more Orthodontic treatment improves facial and smile esthetics along with oral function and psychosocial well being of an individual. Prolonged treatment time is one of the greatest challenges in orthodontics which declines patient’s satisfaction and increases the exposure of the patient to oral health risks such as decalfication of teeth, dental caries, periodontal disease, and root resorption. Most of the orthodontists are interested in noninvasive procedures which will also increase the acceptance of the treatment for both orthodontists and patients. Noninvasive methods that have shown promising results to accelerate the orthodontic tooth movement are vibrational forces, photobiomodulation, and low-intensity pulsed ultrasound (LIPUS). The current evidence presented in this review have shown successful results which is fascinating, further research is needed to explore the utility of these methods as an adjunct in the speciality of orthodontics to reduce the overall treatment duration, risks associated with prolonged treatment and increase patient’s compliance.
Rigorous testing is the way forward to fight the coronavirus disease 2019 pandemic. Here we show ... more Rigorous testing is the way forward to fight the coronavirus disease 2019 pandemic. Here we show that the currently used and most reliable reverse transcription-polymerase chain reaction-based severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) procedure can be further simplified to make it faster, safer, and economical by eliminating the RNA isolation step. The modified method is not only fast and convenient but also at par with the traditional method in terms of accuracy, and therefore can be used for mass screening. Our method takes about half the time and is cheaper by ∼40% compared to the currently used method. We also provide a variant of the new method that increases the efficiency of detection by ∼30% compared to the existing procedure. Taken together, we demonstrate a more effective and reliable method of SARS-CoV-2 detection.
During an impact collision situation, thin-walled tubes demonstrate excellent energy absorbing ca... more During an impact collision situation, thin-walled tubes demonstrate excellent energy absorbing capability through plastic deformation and have been widely used in various structural applications. The present article discusses about the numerical investigations on the transverse crushing behavior and energy absorption performances of various stiffened cylindrical tubular elements. Numerical models were developed with ABAQUS/CAE Ò code to predict the deformation behavior of the proposed tubes under transverse impact force. The maximum energy absorption capacity that could be attained is with a stiffened cylindrical tube of fourth type. The final outcomes revealed that stiffened cylindrical tubes are remarkable in absorbing impact energy in transverse direction.
IOP Conference Series: Materials Science and Engineering, 2020
Investigation of heat transfer is presented due to a vertical heat generating strip inside the sq... more Investigation of heat transfer is presented due to a vertical heat generating strip inside the square porous cavity. The heat is assumed to be generated at isothermal rate at a strip inside the medium. The vertical walls of the cavity are cooled to lower temperature Tc. The two horizontal surfaces are maintained adiabatically so that heat does not cross the boundary. Finite element method is applied as a solution tool to solve the governing equations. The impact of various parameters such as heating strip length, Rayleigh number and Radiation parameter are presented in terms of temperature and streamline distribution inside the porous cavity.
4D printing is the method of 3D printing where the fourth dimension is the time and the shape or ... more 4D printing is the method of 3D printing where the fourth dimension is the time and the shape or structure of the printed body which can change with respect to time. Many researches have conducted experiments to find if this new idea of 4D printing would work and have become successful in their research among them Skylar Tibbits is the first person to start the research in association with Stratasys and Autodesk. Hence the objective of this research work was to review about the different experiments conducted by different researches and prove that 4D printing technology is possible. In the present work, a survey of 4D printing was carried out and the different experimental procedures were discussed. Also the specifications of the technology used to demonstrate the experiment and their advantages are discussed. Few researchers have used the concepts of shape memory polymers to demonstrate their experiment and few have used the upcoming technology of the water absorbing materials and hydrogels to demonstrate their experiments.More or less the different materials used to demonstrate give the same result but what differ with respect to each other is with respect to their properties such as cost, availability, chemical properties, physical properties and etc. Final conclusion of the present work was that this technology is sure to change the world when put into work but because of the complexity it would take time for this to become a reality. 3D printing has already captured our mind and adding fourth dimension to the equation would do wonders which anyone on earth has ever witnessed till date.
Increasing cost and power demand, leads to evaluation of new method to increase through productiv... more Increasing cost and power demand, leads to evaluation of new method to increase through productivity and help to solve the power demands. Many researchers have break through to increase the efficiency of a hydraulic power pack, one of the promising methods is the concept of regenerative. The objective of this research work is to increase the efficiency of a hydraulic circuit by introducing a concept of regenerative circuit. A Regenerative circuit is a system that is used to speed up the extension stroke of the double acting single rod hydraulic cylinder. The output is connected to the input in the directional control value. By this concept, increase in velocity of the piston and decrease the cycle time. For the research, a basic hydraulic circuit and a regenerative circuit are designated and compared both with their results. The analysis was based on their time taken for extension and retraction of the piston. From the detailed analysis of both the hydraulic circuits, it is found that the efficiency by introducing hydraulic regenerative circuit increased by is 5.3%. The obtained results conclude that, implementing hydraulic regenerative circuit in a hydraulic power pack decreases power consumption, reduces cycle time and increases productivity in a longer run.
IOP Conference Series: Materials Science and Engineering
Increasing cost and power demand, leads to evaluation of new method to increase through productiv... more Increasing cost and power demand, leads to evaluation of new method to increase through productivity and help to solve the power demands. Many researchers have break through to increase the efficiency of a hydraulic power pack, one of the promising methods is the concept of regenerative. The objective of this research work is to increase the efficiency of a hydraulic circuit by introducing a concept of regenerative circuit. A Regenerative circuit is a system that is used to speed up the extension stroke of the double acting single rod hydraulic cylinder. The output is connected to the input in the directional control value. By this concept, increase in velocity of the piston and decrease the cycle time. For the research, a basic hydraulic circuit and a regenerative circuit are designated and compared both with their results. The analysis was based on their time taken for extension and retraction of the piston. From the detailed analysis of both the hydraulic circuits, it is found that the efficiency by introducing hydraulic regenerative circuit increased by is 5.3%. The obtained results conclude that, implementing hydraulic regenerative circuit in a hydraulic power pack decreases power consumption, reduces cycle time and increases productivity in a longer run.
nternational journal of advanced research in computer and communication engineering, Dec 30, 2022
This research paper's primary goal is to is to demonstrate how to play a computer game using huma... more This research paper's primary goal is to is to demonstrate how to play a computer game using human gestures. The system's secondary goal is to develop a system that allows a player to play a game without using a physical controller. This system seeks to create a gesture recognition application. The system's attached camera or webcam may be used to identify human hand gestures. The operations on the Game will be performed with the game's basic gaming controls based on the analysis performed by the program on identifying human Hand Gestures. The software includes instructions for recognizing human hand motions. Hand motions should be made using the palms of the hands. The system will be divided into three sections: user interface, gesture recognition, and analysis. The user interface module provides the user with all of the necessary graphical user interface to register the user's arm positions for performing gestures. Gesture recognition by the Media pipe is a cross-platform library developed by Google that provides amazing ready-to-use ML solutions for computer vision tasks. Open CV library in python is a computer vision library that is widely used for image analysis, image processing, detection, recognition etc. This research paper will be accomplished with the help of OPEN CV.
Background: Neonatal pneumonia accounts for significant morbidity and mortality, especially in de... more Background: Neonatal pneumonia accounts for significant morbidity and mortality, especially in developing countries. Throughout childhood, the greatest risk of death from pneumonia is in the neonatal period. This study is done to study the risk factors and clinical characteristics of neonatal pneumonia. Aim of the study was to study the risk factors and clinical characteristics of neonatal pneumonia. Methods: This was a hospital-based observational study conducted in the department of paediatrics, Gandhi medical college and hospital, Hyderabad. A detailed antenatal and postnatal risk factors were taken, and the clinical signs and symptoms of neonatal pneumonia were noted. Results: Of the 100 neonates 30% of cases had early onset pneumonia and 70% had late onset pneumonia.50% of early onset pneumonia cases had antenatal risk factors. There is a statistically significant association of age of onset of pneumonia with gestational age (p=0.002) late onset pneumonia being more common >...
INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2022
Petroleum fuel prices are often rising due to the rapid depletion of natural resources, which are... more Petroleum fuel prices are often rising due to the rapid depletion of natural resources, which are exorbitantly expensive for the average consumer, especially in the situation in India. Therefore, C.I. The importance of alternative fuel engines for use in is increasing. Much research has been done on alternative fuels. Intensive research is being conducted in the area of improving the thermal efficiency of engines. This shows that in a naturally aspirated diesel engine, only one-third of the heat supplied is converted to work. Many methods are recommended by some experts and researchers to improve engine performance characteristics. The purpose of this study is to increase the swirl effect in the cylinder, improve performance and reduce emissions. In DI diesel engines, swirls can increase the mixing speed of fuel and air. The vortex interaction with the squish flow caused by compression increases the level of turbulence in the combustion bowl and promotes mixing. It is clear that the...
Circulation: Cardiovascular Quality and Outcomes, 2011
Background: There have been an increasing number of patients receiving implantable cardioverter d... more Background: There have been an increasing number of patients receiving implantable cardioverter defibrillators (ICDs) over the last decade. Although ICDs prevent arrhythmic death, patients may still develop other terminal illnesses, or progression of underlying heart failure. ICD- delivered shocks are associated with significant pain, anxiety and reduced quality of life. Therefore for this population of patients, it may become undesirable to receive shock therapy nearing the end of life. We reviewed the practices for ICD deactivation on a series of patients admitted to a hospice center. We hypothesized that for patients with ICDs, the frequency for ICD deactivation at end of life would be low. Methods: In this retrospective study we reviewed records of patients with ICDs who were admitted to the Hildebrandt Hospice Care Center, an inpatient hospice facility, in Rochester NY from January 2005 to December 2009. Information regarding patient's demographics, indications for ICD impl...
The latest developments in the area of hybrid materials evidenced the advantages of fibre metal l... more The latest developments in the area of hybrid materials evidenced the advantages of fibre metal laminates (FMLs) over the conventional homogeneous materials in automotive structures. In the current research study, tensile strength and flexural strength of aluminium alloy basalt fabric laminate with and without multi-walled carbon nanotubes (MW-CNT) fillers were compared. The proposed laminate sheets were fabricated using the conventional hand layup method, and the test samples were pierced from the fabricated laminates according to ASTM standards. Subsequently, uni-axial tensile test and three-point bending test were performed on the Universal Testing Machine. The results revealed that the tensile and flexural properties of the proposed FMLs were enhanced considerably after the incorporation of MW-CNT nanofillers into the epoxy matrix. These types of newly designed FML could be used as body components in automotive applications.
IOP Conference Series: Materials Science and Engineering, 2018
The performed studies in the area of petroleum engineering facilitate the shaping of a system of ... more The performed studies in the area of petroleum engineering facilitate the shaping of a system of fundamental knowledge that allows the future specialist to scientifically analyze the issues in one's professional domain, implement the obtained basic knowledge in practice, and independently digest the new information encountered during one's industrial and scientific activity while employing modern methods of research. Controlling the pressure and flow of fluids in pipelines remains a highly important task. For this reason, further studies to find new designs and technological solutions to optimize these processes are promising and relevant, allowing to increase the technical and economic performance indicators of the processes of supplying pressurized fluid.
International Journal of Oral Care and Research, 2020
Orthodontic treatment improves facial and smile esthetics along with oral function and psychosoci... more Orthodontic treatment improves facial and smile esthetics along with oral function and psychosocial well being of an individual. Prolonged treatment time is one of the greatest challenges in orthodontics which declines patient’s satisfaction and increases the exposure of the patient to oral health risks such as decalfication of teeth, dental caries, periodontal disease, and root resorption. Most of the orthodontists are interested in noninvasive procedures which will also increase the acceptance of the treatment for both orthodontists and patients. Noninvasive methods that have shown promising results to accelerate the orthodontic tooth movement are vibrational forces, photobiomodulation, and low-intensity pulsed ultrasound (LIPUS). The current evidence presented in this review have shown successful results which is fascinating, further research is needed to explore the utility of these methods as an adjunct in the speciality of orthodontics to reduce the overall treatment duration, risks associated with prolonged treatment and increase patient’s compliance.
Rigorous testing is the way forward to fight the coronavirus disease 2019 pandemic. Here we show ... more Rigorous testing is the way forward to fight the coronavirus disease 2019 pandemic. Here we show that the currently used and most reliable reverse transcription-polymerase chain reaction-based severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) procedure can be further simplified to make it faster, safer, and economical by eliminating the RNA isolation step. The modified method is not only fast and convenient but also at par with the traditional method in terms of accuracy, and therefore can be used for mass screening. Our method takes about half the time and is cheaper by ∼40% compared to the currently used method. We also provide a variant of the new method that increases the efficiency of detection by ∼30% compared to the existing procedure. Taken together, we demonstrate a more effective and reliable method of SARS-CoV-2 detection.
During an impact collision situation, thin-walled tubes demonstrate excellent energy absorbing ca... more During an impact collision situation, thin-walled tubes demonstrate excellent energy absorbing capability through plastic deformation and have been widely used in various structural applications. The present article discusses about the numerical investigations on the transverse crushing behavior and energy absorption performances of various stiffened cylindrical tubular elements. Numerical models were developed with ABAQUS/CAE Ò code to predict the deformation behavior of the proposed tubes under transverse impact force. The maximum energy absorption capacity that could be attained is with a stiffened cylindrical tube of fourth type. The final outcomes revealed that stiffened cylindrical tubes are remarkable in absorbing impact energy in transverse direction.
IOP Conference Series: Materials Science and Engineering, 2020
Investigation of heat transfer is presented due to a vertical heat generating strip inside the sq... more Investigation of heat transfer is presented due to a vertical heat generating strip inside the square porous cavity. The heat is assumed to be generated at isothermal rate at a strip inside the medium. The vertical walls of the cavity are cooled to lower temperature Tc. The two horizontal surfaces are maintained adiabatically so that heat does not cross the boundary. Finite element method is applied as a solution tool to solve the governing equations. The impact of various parameters such as heating strip length, Rayleigh number and Radiation parameter are presented in terms of temperature and streamline distribution inside the porous cavity.
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Papers by Lohith Reddy