Journal of Scientific and Technical Research
Issue 1, 2021
Original Articles
Abstract
Hydrogen is significant and may be viewed as an alternative for main fossil fuels, coal, crude oil, and natural gas, as well as its derivatives when utilized as fuel. It has the potential to be a clean, efficient, and inexpensive energy source. The main benefit is that its oxygen-burning products are water and not carbon-containing and greenhouse gases CO and CO2. Conventional forms of energy are dependent on fossil fuels and have several consequences, namely pollution, climate change, and increased price. Promising alternatives are renewable energy sources like solar and wind energy. However, the main limitation for renewable energy sources is that they are always unavailable and provide us with interrupted energy. As a result, energy resources should be combined with energy storage devices in order to offer continuous power. This paper examines the various storage systems and concentrates on energy storage systems based on hydrogen.
Hydrogen is significant and may be viewed as an alternative for main fossil fuels, coal, crude oil, and natural gas, as well as its derivatives when utilized as fuel. It has the potential to be a clean, efficient, and inexpensive energy source. The main benefit is that its oxygen-burning products are water and not carbon-containing and greenhouse gases CO and CO2. Conventional forms of energy are dependent on fossil fuels and have several consequences, namely pollution, climate change, and increased price. Promising alternatives are renewable energy sources like solar and wind energy. However, the main limitation for renewable energy sources is that they are always unavailable and provide us with interrupted energy. As a result, energy resources should be combined with energy storage devices in order to offer continuous power. This paper examines the various storage systems and concentrates on energy storage systems based on hydrogen.
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Abstract
Because of their various nanostructures, carbon nanotubes (CNTs) and graphene have garnered considerable attention, making it a particularly appealing and broad topic in nanotechnology. Graphene and carbon nanotubes (CNTs) both have unique electrical, mechanical, thermal, catalytic, and electrochemical features because they are made up of sp2 hybridized carbon atoms. Carbon nanotube hybrid nanostructured materials (CNT hybrid nanocomposites), Carbon nanotubes (CNTs), and nanotechnology have the potential to improve energy conversion and storage device applications. Carbon nanotubes are being evaluated for application in renewable energy sources, including solar cells and hydrogen storage. Carbon nanotubes (CNTs) are utilized in storage technologies such as Li-ion batteries, supercapacitors, and thermal energy harvesting.
Because of their various nanostructures, carbon nanotubes (CNTs) and graphene have garnered considerable attention, making it a particularly appealing and broad topic in nanotechnology. Graphene and carbon nanotubes (CNTs) both have unique electrical, mechanical, thermal, catalytic, and electrochemical features because they are made up of sp2 hybridized carbon atoms. Carbon nanotube hybrid nanostructured materials (CNT hybrid nanocomposites), Carbon nanotubes (CNTs), and nanotechnology have the potential to improve energy conversion and storage device applications. Carbon nanotubes are being evaluated for application in renewable energy sources, including solar cells and hydrogen storage. Carbon nanotubes (CNTs) are utilized in storage technologies such as Li-ion batteries, supercapacitors, and thermal energy harvesting.
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Abstract
The usual etiologies of giant abdominal cystic masses in infants are mesenteric cyst, enteric duplication cyst, ovarian cyst in females, cystic lymphangioma, and the presentation of a choledochal cyst in a gigantic form is however, unusual. The primary modality for diagnosis of this entity is ultrasound, followed by MRI. The characteristic ultrasound features of a choledochal cyst are a well-defined cystic lesion which may be replacing any segment of biliary tree and is distinctly separate from the gallbladder. The associated anomalies are biliary atresia, gallbladder atresia, hepatic fibrosis and also anomalies of the pancreatico-biliary system. MRI with MRCP has a conclusive role in confirming the ultrasound diagnosis. Choledochal cysts are classified based on Todani et al.’s method as comprising of five types. Herein we report the case study of a 4 month old male infant afflicted with a gigantic Type 1 Choledochal cyst, which was diagnosed by us at the first instance itself by ultrasound examination and was corroborated by MRI. The diagnosis was further confirmed at surgery and histopathology. The recommended treatment of resection of the cyst accompanied by a hepatico-jejunostomy by pass procedure, was successfully performed in the reported infant.
The usual etiologies of giant abdominal cystic masses in infants are mesenteric cyst, enteric duplication cyst, ovarian cyst in females, cystic lymphangioma, and the presentation of a choledochal cyst in a gigantic form is however, unusual. The primary modality for diagnosis of this entity is ultrasound, followed by MRI. The characteristic ultrasound features of a choledochal cyst are a well-defined cystic lesion which may be replacing any segment of biliary tree and is distinctly separate from the gallbladder. The associated anomalies are biliary atresia, gallbladder atresia, hepatic fibrosis and also anomalies of the pancreatico-biliary system. MRI with MRCP has a conclusive role in confirming the ultrasound diagnosis. Choledochal cysts are classified based on Todani et al.’s method as comprising of five types. Herein we report the case study of a 4 month old male infant afflicted with a gigantic Type 1 Choledochal cyst, which was diagnosed by us at the first instance itself by ultrasound examination and was corroborated by MRI. The diagnosis was further confirmed at surgery and histopathology. The recommended treatment of resection of the cyst accompanied by a hepatico-jejunostomy by pass procedure, was successfully performed in the reported infant.
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Abstract
In type 2 diabetes mellitus (T2DM), transcription factor 7- like 2 (TCF7L2) gene has been linked its susceptibility in multiple ethnicities. This case-control study investigates the possible role of TCF7L2 variant; rs7903146 (C/T) along with anthropometric data and clinical profiles in the North Indian population. TCF7L2 polymorphism was genotyped by allele-specific PCR assay. Odds ratio (OR) and 95% Confidence Intervals were used to assess the strength of genetic association. A total of 500 human subjects consisting of 250 T2DM patients together with 250 normoglycemic controls from the region of North India. Out of total T2DM subjects, 64.4% had a family history and 74% were reported to be hypertensive. Most of the anthropometric markers showed a statistically significant (p<0.0001) association with T2DM when compared to normoglycemic controls, specifically in fasting glucose, postprandial glucose, and HbA1c. Further analysis indicates that recessive genetic model of association established that the unadjusted odds ratio of risk homozygous (TT) subjects was 2.6 fold higher (OR=2.63; 95% CI=1.27-5.43) compared to wild homozygous (CC) subjects. Simultaneously, when adjusted with age, sex, and BMI, this risk was increased up to 3.4 fold (OR=3.46; 95% CI=1.63-7.34). Risk alleles (TT subjects) were also found to be statistically significant in BMI and blood sugar parameters. This SNP was also showed significant statistical association with T2DM under dominant and co-dominant models of logistic regression even after adjusting the covariates. This study exposed the positive genetic association of the risk variant rs7903146 (T) SNP of TCF7L2 in T2DM subjects of the North India
In type 2 diabetes mellitus (T2DM), transcription factor 7- like 2 (TCF7L2) gene has been linked its susceptibility in multiple ethnicities. This case-control study investigates the possible role of TCF7L2 variant; rs7903146 (C/T) along with anthropometric data and clinical profiles in the North Indian population. TCF7L2 polymorphism was genotyped by allele-specific PCR assay. Odds ratio (OR) and 95% Confidence Intervals were used to assess the strength of genetic association. A total of 500 human subjects consisting of 250 T2DM patients together with 250 normoglycemic controls from the region of North India. Out of total T2DM subjects, 64.4% had a family history and 74% were reported to be hypertensive. Most of the anthropometric markers showed a statistically significant (p<0.0001) association with T2DM when compared to normoglycemic controls, specifically in fasting glucose, postprandial glucose, and HbA1c. Further analysis indicates that recessive genetic model of association established that the unadjusted odds ratio of risk homozygous (TT) subjects was 2.6 fold higher (OR=2.63; 95% CI=1.27-5.43) compared to wild homozygous (CC) subjects. Simultaneously, when adjusted with age, sex, and BMI, this risk was increased up to 3.4 fold (OR=3.46; 95% CI=1.63-7.34). Risk alleles (TT subjects) were also found to be statistically significant in BMI and blood sugar parameters. This SNP was also showed significant statistical association with T2DM under dominant and co-dominant models of logistic regression even after adjusting the covariates. This study exposed the positive genetic association of the risk variant rs7903146 (T) SNP of TCF7L2 in T2DM subjects of the North India
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In this paper a brief review of virtual reality application in orthopaedic treatment is presented. The use of virtual reality to treat patients with orthopaedic disorders has been discussed. Virtual reality is an interactive technology that enables for personalised treatment and could aid in the delivery of effective person-centered rehabilitation. In orthopaedics, virtual reality exergaming treatment has been shown to have a significant impact on pain reduction and enhanced joint mobility
In this paper a brief review of virtual reality application in orthopaedic treatment is presented. The use of virtual reality to treat patients with orthopaedic disorders has been discussed. Virtual reality is an interactive technology that enables for personalised treatment and could aid in the delivery of effective person-centered rehabilitation. In orthopaedics, virtual reality exergaming treatment has been shown to have a significant impact on pain reduction and enhanced joint mobility
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The effect of grafting on the chemical and physical properties of chitosan has been reviewed in the light their different applications i.e. biomedical, biosensor, water purification and packaging. The grafting methods and condition are discussed along with their comparative advantages and disadvantages. Further, the suitability of chitosan grafted copolymer in sensing, drug delivery, dyes removal and packaging has been described with suitable examples and illustrations
The effect of grafting on the chemical and physical properties of chitosan has been reviewed in the light their different applications i.e. biomedical, biosensor, water purification and packaging. The grafting methods and condition are discussed along with their comparative advantages and disadvantages. Further, the suitability of chitosan grafted copolymer in sensing, drug delivery, dyes removal and packaging has been described with suitable examples and illustrations
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First thing that springs to mind whenever we think of drawing and sketching is a wooden stick called a graphite pencil. It was in 1795 that the Graphite Pencil made its debut. Graphite pencils have been around since the 18th century and are currently going strong in the 21st century. We all know that even in the 21st century, we cannot ignore the pencil’s presence and significance. We were taught how to write and draw by the pencil from the very first day of school. Artists have long sought for new art forms, materials, techniques, and instruments. Because everything is moving so quickly in the digital age, artists are also looking for rapid and time-efficient results in their artwork. Thanks to improved technology, artists now have a better digital drawing tool. Using a digital drawing tool is quite comparable to using a traditional drawing pencil in the traditional sense. In this post, we’ll take a look at several cutting-edge digital drawing tools and explain how they might benefit artists
First thing that springs to mind whenever we think of drawing and sketching is a wooden stick called a graphite pencil. It was in 1795 that the Graphite Pencil made its debut. Graphite pencils have been around since the 18th century and are currently going strong in the 21st century. We all know that even in the 21st century, we cannot ignore the pencil’s presence and significance. We were taught how to write and draw by the pencil from the very first day of school. Artists have long sought for new art forms, materials, techniques, and instruments. Because everything is moving so quickly in the digital age, artists are also looking for rapid and time-efficient results in their artwork. Thanks to improved technology, artists now have a better digital drawing tool. Using a digital drawing tool is quite comparable to using a traditional drawing pencil in the traditional sense. In this post, we’ll take a look at several cutting-edge digital drawing tools and explain how they might benefit artists
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This paper presents an overview of the Cloud Computing Environment and its deployment models. These service deployment models helped various industries to continue their functions. As COVID-19 pandemic has impacted the world like never before. This paper introduces COVID-19 and its severity also presents how cloud computing has given an alternative solution in the form of work from home. Cloud based applications, infrastructure, platforms, services and security provides the enriched solution to IT industries, healthcare sector, Educational Organizations and also to various other e-commerce platforms. This paper shows the effective techniques to utilize the various aspects provided by the cloud computing environment. It also raises the alarm for different security concerns in the deployment of Cloud platforms while COVID pandemic still exists among us.
This paper presents an overview of the Cloud Computing Environment and its deployment models. These service deployment models helped various industries to continue their functions. As COVID-19 pandemic has impacted the world like never before. This paper introduces COVID-19 and its severity also presents how cloud computing has given an alternative solution in the form of work from home. Cloud based applications, infrastructure, platforms, services and security provides the enriched solution to IT industries, healthcare sector, Educational Organizations and also to various other e-commerce platforms. This paper shows the effective techniques to utilize the various aspects provided by the cloud computing environment. It also raises the alarm for different security concerns in the deployment of Cloud platforms while COVID pandemic still exists among us.
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Abstract
The structural steel elements of buildings are normally not subjected to full design strength, under normal operation. Structural steel is a non-combustible material and its properties can be affected by elevated temperatures. The terrorist attack on multi-storey steel structure World Trade Centre in New York is worst event in the history, which resulted in tragic loss of lives. Therefore, high rise steel buildings must be able to resist high temperatures so that there is a minimum damage to the structure. The main purpose of this paper is to investigate the temperature effects on multi-storey steel building subjected to elevated temperature. In this paper, a study is made to investigate the effect of elevated temperature on structural elements of steel buildings. The main properties of steel that were found to change with an increase in temperature from 20 degree centigrade to 1400 0C are modulus of elasticity of steel, and yield strength of the structural steel. High grade steel, Fe410 was found to better resist the temperature changes as compared to Fe250. These results are expected to help the designers and planners in making appropriate provisions for providing a higher temperature resistance to the steel structures.
The structural steel elements of buildings are normally not subjected to full design strength, under normal operation. Structural steel is a non-combustible material and its properties can be affected by elevated temperatures. The terrorist attack on multi-storey steel structure World Trade Centre in New York is worst event in the history, which resulted in tragic loss of lives. Therefore, high rise steel buildings must be able to resist high temperatures so that there is a minimum damage to the structure. The main purpose of this paper is to investigate the temperature effects on multi-storey steel building subjected to elevated temperature. In this paper, a study is made to investigate the effect of elevated temperature on structural elements of steel buildings. The main properties of steel that were found to change with an increase in temperature from 20 degree centigrade to 1400 0C are modulus of elasticity of steel, and yield strength of the structural steel. High grade steel, Fe410 was found to better resist the temperature changes as compared to Fe250. These results are expected to help the designers and planners in making appropriate provisions for providing a higher temperature resistance to the steel structures.
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