bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Cavity Materials and Selective Surface Coatings on the Performance of SCC
Authors: Lakshmipathy. B#  , Senthil kumar. M  , Sivakumar. K  , Kajavali. A  
Published: April 2021

Abstract
It is evident that the future energy demand can be compensated by using solar energy. The technological improvements are needed to trap the sunlight and have to be utilized in an efficient way. It mainly depends on the type of material which is to be used for this purpose. Solar energy can be effectively captured and utilized to heat the heat transfer fluids. Therefore the usage of solar energy is a right choice as it has the ample availability in countries like India.Solar cavity collector [SCC] is a kind of improvised, modified and redesigned construction of a solar Flat Plate Collector (FPC). In short, SCC is an upgraded and advanced version of FPC. A Copper pipe has been positioned concentrically fitted to a radius (outer) of 16 mm and placed into a metal box like structure having a size of 50 mm. In a similar way, five numbers of such cavities are formed. It has a provision for inlet and outlet water pipes. It has been designed, fabricated and experimented for its optimized level of performance. This paper explains about the usage of materials and solar selective surface coatings that are applicable to Solar Cavity Collector (SCC). The following experimental modifications are carried out in the SCC which are 1.Reciever materials of the SCC have been changed as aluminum and copper. 2. Cavity materials as Galvanized Iron (G.I) material and Mild Steel (M.S) material, both are experimented. 3. Solar selective coatings (SSC) of Black nickel have been used in SCC for the heat transfer improvement.
Strength Characteristics of Concrete by Partial Replacement of Coarse Aggregate with Coconut Shells & Cement with Glass Powder
Authors: Naidu Gopu Ganesh , Babu Nettikoppula Ramesh , Ravikumar Pappula 
Published: April 2021

Abstract
In this study coarse aggregates and cement are partially replaced in the concrete with similar materials like coconut shells and glass powder. While production of the cement there is a lot of pollution to the environment and which causes health issues to the society. In the same way while production of the course aggregates which releases lot of dust into the atmosphere which causes damage to human lives. We can obtain some advantages by partially replacing the coarse aggregates and cement in the concrete. As we all know that the Cement and the coarse aggregates are the main ingredients in the concrete. The cost of these materials is getting increased day by day. There are some of the materials proposed by many researchers to lesser the cost of the concrete and to improve the strength characteristics of the concrete. For coarse aggregates, the coconut shell is the most preferable and it has more potential to the partial replacement of the coarse aggregates in concrete. As well as there is a similar material which used to partially replacement of the cement is waste glass powder. As we observe at many places there is a lot of wastage of glass will produce throughout the year. Mainly glass is the composition of silica. When the glass is crushed into very small size as powder it experienced to the pozzolanic reactions with hydrates in the cement, and calcium silicate hydrate will be formed. The main aim of this research is utilization of the waste material in the concrete as well as decreasing the cost of the construction by using these waste materials in the concrete, by performing all these things we can easily reduce the pollution of the environment and clean the environment by using these waste materials in the concrete..
Molecular Dynamics Simulation of the Tensile Properties of an Al6063-SiO2 Composite under Varying Temperature Conditions
Authors: Idusuyi N , Adekoya A H , Olugasa T T 
Published: April 2021

Abstract
The tensile stress behaviour of Aluminium Metal Matrix Composites (AMCs) reinforced with SiO2 was evaluated using Molecular Dynamics (MD). A cubic model was used for the simulation, while the Modified Embedded Atom Method (MEAM) was implemented to describe the atomic interactions for the MD simulation. From the MD simulation the presence of the SiO2 was found to substantially disrupt the FCC crystallography of the Al and reduce the ductility of the Al while substantially increasing the yield strength of the composite. A Maximum Elastic modulus of 43.3GPa was obtained at a temperature of 350K and 10wt% SiO2.
An Interpretation of Performance and Emission Outcomes of the Compression Ignition Engine using Palm Oil Biodiesel-Diesel Blends
Authors: Kamitkar Nitin Dattatreya , Satishkumar  , Basavaraju A N , Kushnoore Shashikant , Deepa A B , Marimuthu P , Chakravarthy Kalyan N S 
Published: April 2021

Abstract
Research on alternative sources to replace fossil fuels has been started decades ago and still an uninterrupted process. Partial replacement rather than complete is justified with real-time applications. In this research, engine outcomes based on palm oil biodiesel blends are elaborated. The transesterification processed biodiesel from raw palm oil is used to run the engine with a blend proportion of P10D90 and P20D80. From the results obtained, the performance of an engine was degraded with an increase in biodiesel proportion and consumes higher fuel. At lower load diesel and P10D90 have almost equal thermal efficiency whereas at peak load it is found that 39.1% and 37.6% respectively. Apart from CO emissions, there is an increment in CO2, HC, and NOX with the load. NOx emissions are in the margin with diesel for P10D90 at part load. P10D90 shown slightly lower in-cylinder pressure at full load compared to diesel.However, it is seen that P20D80 has given depreciated performance readings, lowered cylinder pressure 55.8 bar, and higher emissions at rated torque. From the experiment, it is noticed that above 10% of the biodiesel blend engine required suitable modifications and accessories to overcome demerits associated with blend characteristics.
Effect of Nitrogen Dopant on Electrical Resistance of Hot Zone of SiC Heating Elements
Authors: Kavitha S D , Kulakarni N Suneel Kumar , Suresh R , Shivanna D M 
Published: April 2021

Abstract
In the present work gaseous nitrogen is used as dopant in silicon carbide heating element to study the effect of electrical resistance in heat generation portion of heating elements. The silicon carbide heating elements are used mainly in non-ferrous alloy melting and holding furnaces in automotive and aerospace industrial applications. The gaseous nitrogen plays a major role as dopant in achieving the electrical resistance of SiC heating elements. The green silicon carbide is used to prepare the heating element by powder metallurgy process because of its high mechanical strength, resistance to corrosion, and high thermal conductivity at elevated temperature. However, the nitrogen acts as dopant in silicon carbide to achieve the electrical resistivity in the heating element to generate uniform heat in hot zone portion of SiC heating elements while sintering. The hot zone of SiC heating element is connected with cold zone at both the terminals of heating element to pass the current to hot zone to generate the heat by its higher resistivity. A range of nitrogen gas flow rate ranges from76 lt/hr to 84 lt/hr with 99.99% purity of industrial grade passed to the sintering furnace, in turn it acts as dopant and creates inert atmosphere in the sintering furnace, then the SiC heating element tubes were made and analysed. The results indicate that the quantity of gaseous nitrogen dopant influenced the electrical resistivity of the heat generating portion of SiC heating element.
Investigation of engine characteristics of a variable compression ratio diesel engine using biodiesel and alcohol blends
Authors: Taneja Sumit , Singh Princepreet 
Published: April 2021

Abstract
Increasing environmental pollution and reducing fossil fuels are major concerns of today’s age. To address both the above said issues, the present research focuses on fossil fuel compensation with Biofuels additives. The objective is to analyze combined effect of biodiesel, alcohols and other additives on the diesel engine performance and emission characteristics. The prime target of present research is to analyze the emission characteristics of the diesel engine fueled with Biodiesel (20%)-diesel, Biodiesel (20%)-ethanol (10%)-diesel and Biodiesel (20%)-butanol (10%)-diesel blends. For this purpose, various loads and compression ratios have been applied on each of the blends, to get the optimum result for better performance and reduction in emissions. Engine tests were conducted at variable loads, starting from no load (0 Kg) to full load (15 Kg) at rpm of 1500 on a single cylinder diesel engine. Two compression ratios CR16 and CR18 were used for the research. Engine performance parameters namely BSFC, BTE and engine emissions namely NOX, CO, HC and CO2 were measured. Performance and emission variations of the modified blends were compared with the reference fuel (pure diesel) for the quantitative assessment of the improvements.
Optimization of Extraction Process of Jatropha Oil by Using Quenching Agent
Authors: Kothari Richa , Ahmad Shamshad , Samykano M , Tyagi V.V. , Pandey A K , Saidur R. 
Published: April 2021

Abstract
Among the various energy plant species, Jatropha curcus is found to be best oil-bearing plant species with a wide range of applications and having enormous economic potentials for its seed, which can be converted into biodiesel via transesterification which is an alternative to petrodiesel. In this present study, the effect of three factors, Time (1-4 hour), temperature (60-120°C) and quenching agents (NaCl, KCl, and ZrCl2) and dose of quenching agent(0.5-2gm) use for the extraction of oil from 10grm of jatropha seed. Using the Box-Benken Design (BBD) approach of Response Surface Methodology (RSM), 17 experimental runs were generated. n-Hexane was used as solvent for each experiment carried out in the 100 ml soxhlet extraction apparatus. Results obtained from the experiments were modeled and analyzed by choosing a quadratic model. From the analysis of modeled found temperature extraction time and dose of quenching agent revealed the good agreement of value (R2=0.98) between observed and predicted value of the experiment and were to be p>0.05 that was based on 95% confidence interval. By the use of RSM-BBD an optimizing experiment 60°C temperature 3h time and 2gm ZrCl2 quenching agent give best extraction of oil yield 41.41%.
Development of Eutectic Phase Change Materials for Solar Thermal Energy Storage
Authors: Sharma R. K. , Ansu A. K. , Laiker U. 
Published: April 2021

Abstract
This paper presents the findings on preparation and thermal analysis of binary eutectic mixture of polyethylene glycol 2000 and 6000. Their measured latent heat are 165.3 J/g and 220 J/g respectively. Eutectic mixtures of these materials were prepared by weight percentage composition with an increment of 10% i.e. compositions of PEG 2000 : PEG 6000 with 0:100, 10:90, 20:80 and so on till 100:0 were prepared. The thermal properties, melting temperatures and latent heats of fusion of these mixtures were measured by DSC analysis. The eutectic mixture with 50:50 composition was kept in a thermal cycling test rig to perform an accelerated thermal cycle test up to 1500 cycles. The melting temperature and latent heat of fusion of this thermally cycled mixture were obtained by DSC analysis on 0th, 100th, 500th, 1000th and 1500th cycle. There was a drop of 1.9 °C in the melting temperature and 8% degradation in latent heat of fusion was observed in comparison to 0th cycle. Considering these values it can be deduced that the eutectic mixture is thermally stable.
Dissemination of Sustainable Cooking: A Detailed Review on Solar Cooking System
Authors: Singh Hemant Raj , Sharma Dilip , Soni Shyam Lal 
Published: April 2021

Abstract
Cooking sector is considered as one of the major energy consuming sector in developing and underdeveloped countries. From the primitive age, humankind largely rely on biomass for their cooking energy need, even though there has been a tremendous upgradation in cooking methods. Due to hazardous effects and energy inefficiencies of conventional biomass cooking system, unconventional cooking energy (method) is becoming popular day by day. Dependency on ever depleting fossil fuel has forced us to switchover to renewable energy options and amongst all; solar energy seems best option due to its inherent reasons. In this study, efforts have been made to review the entire solar cooking systems incorporating with and without thermal energy storage available hitherto. The study reveals the different thermal performance parameters of solar cooking system and attempts to highlight the adaption factors of solar cooking system in the designated market.
Simulation Analysis for Induction Motor Drive Fault Detection and Localization Under Variable Load and Speed Operation
Authors: Yaacob Sazali , Rasyadan Amir , Krishnanf Pranesh 
Published: April 2021

Abstract
The induction motors are widely used in the industry for their advantage of being reliable, rugged, and simple in construction. Nonetheless, the use of inverter-based drives has increased the overall system failure possibility mainly because of the power electronics switches used in the inverter itself. For that reason, it is crucial to monitor the inverter switches health during operation to avoid total system breakdown. A method to do so is by using the current vector trajectory analysis on the induction motor stator current signal. However, one disadvantage of using this method is that it is negatively affected by the load and speed variations. This paper is intended to discuss further on the matter and look into the methods that can be used to minimize the effects associated with the load and speed variations using computer simulation analysis.
Feasibility Analysis of Solar Power Generation System for Office Building in Academic Institution
Authors: Mohd Zublie Muhammad Firdaus , Hasanuzzaman Md. , Rahim Nasrudin Abd. 
Published: April 2021

Abstract
This paper study the potential of energy-saving through lighting located at the office building in an academic institution known as Politeknik Sultan Azlan Shah (PSAS). Exercise through energy audit has been conducted at 3 main academic building to identify energy usage of lighting. 3 academic building involved is Mechanical Engineering Department (MED), Civil Engineering Department (CED), and the Electrical Engineering Department (EED). This study analysis 5 types of lighting to identify which types of lighting use the highest amount of energy in academic buildings. The 5 types of lighting involved in this study are Fluorescent T8 36W, Fluorescent T8 18W, Compact Fluorescent (CFL) 24W, Metal halide (MH) 400W and Ttube 18W. Energy savings are calculated based on the installation of hybrid solar in 3 related buildings. From an energy audit, the energy-saving at-least 5% from previous data has been estimated through the installation of a solar photovoltaic (PV) system. Through feasibility analysis, it is found that energy-saving potential obtained in the year 2019 for MED, CED and EED are about 4299 kWh, 2,319 kWh and 3,269 kWh respectively. Besides, the energy bill saving obtained is about RM 1,569, RM 846 and RM 3,269 respectively for MED, CED, and EED.
Mechanical properties, fracture morphology and thermal analysis of untreated and alkaline treated salago fiber epoxy laminated composites
Authors: Lopena Jerome D , Millare Jeremiah C 
Published: April 2021

Abstract
Natural fibers gain acceptance in various applications due to their advantages over synthetic materials especially in terms of environmental impact, lightweight feature, availability and cost. Apparently, a natural fiber that still needs further exploration on its use in composite is salago. In this study, untreated and alkaline treated salago fiber with varying number of layers from one to three sheets were reinforced in epoxy resin. FTIR analysis and optical microscopy were used to analyze the effect of 5 wt. % sodium hydroxide treatment on the fiber sheets. On the other hand, the composites were subjected to tensile, flexural and Izod impact tests. Tensile fracture morphology was observed through FESEM while thermal degradation was evaluated using thermogravimetric-differential thermal analysis. As compared to neat epoxy, improvements on tensile (52.8%), flexural (37.6%) and impact (more than 6 times) strengths were obtained for the composite with three layers of untreated fiber sheets. Generally, the mechanical properties of the composites improved as the fiber sheets increases. However, the alkaline treated fiber composites obtained lower strengths than their untreated counterparts which may be associated to the presence of holes on the fiber sheets caused by the chemical treatment. Nevertheless, enhancements on moduli and thermal stability were still achieved for the composites with treated fibers which could be related to the good fiber-matrix adhesion caused by the partial removal of hemicellulose and lignin. Moreover, the composite can be used in applications that require high impact strength and stiffness like frame for drones or robots.
Outcomes and Complications of Surgical Removal of Foreign Body Granulomas Due to Illicit Polymer Injection for Cosmetic Purposes
Authors: López-Mendoza Francisco J , Moran-Romero Mario , Mouneu Nicole 
Published: April 2021

Abstract

Background
Subcutaneous injection of illicit polymers can result in a number of local complications, including injection-site deformity, granulomas, and skin changes.

Objectives
The aim of this study was to compare postoperative complications and symptom flare in patients undergoing surgical excision of foreign-body granulomas.

Methods
We retrospectively examined data of patients who underwent surgical removal of foreign-body granulomas caused by polymer injection for cosmetic purposes. The granulomas were removed by ultrasonic-assisted liposuction or en bloc excision with primary closure, skin grafts, or free flaps during 2014 to 2020. Data collected included demographic and operative parameters. Postoperative complications, symptom flare, and time to flare were reported. The relations between type of surgery and complications, symptom flare, and time to flare were determined through statistical analysis.

Results
The final cohort included 49 surgeries (42 primary and 7 secondary) in 35 patients. The overall complication rate was 28.9%, with no significant intergroup differences (30.8%, 20%, 66.7%, and 40%; P = 0.328). Wound dehiscence and skin burns were the main complications. An overall symptom flare of 35.1% in surgically treated areas over a mean period of 28.49 months was reported. Chi-squared test indicated statistical significance between type of surgery and symptom flare (P = 0.004) and between complications and flare (P = 0.013). Kaplan-Meier test for flare was statistically significant (P = 0.006) after comparison of the 4 groups.

Conclusions
The rate of postoperative complications was similar for each type of surgery. However, en bloc excision and reconstruction by either primary closure or free flap was associated with a significantly decreased rate of symptom flare and a longer symptom-free period.

Level of Evidence: 4
SysMod: the ISCB community for data-driven computational modelling and multi-scale analysis of biological systems
Authors: Dräger Andreas , Helikar Tomáš , Barberis Matteo , Birtwistle Marc , Calzone Laurence , Chaouiya Claudine , Hasenauer Jan , Karr Jonathan R , Niarakis Anna , Rodríguez Martínez María , Saez-Rodriguez Julio , Thakar Juilee 
Published: April 2021

Abstract
Computational models of biological systems can exploit a broad range of rapidly developing approaches, including novel experimental approaches, bioinformatics data analysis, emerging modelling paradigms, data standards and algorithms. A discussion about the most recent advances among experts from various domains is crucial to foster data-driven computational modelling and its growing use in assessing and predicting the behaviour of biological systems. Intending to encourage the development of tools, approaches and predictive models, and to deepen our understanding of biological systems, the Community of Special Interest (COSI) was launched in Computational Modelling of Biological Systems (SysMod) in 2016. SysMod’s main activity is an annual meeting at the Intelligent Systems for Molecular Biology (ISMB) conference, which brings together computer scientists, biologists, mathematicians, engineers, computational and systems biologists. In the five years since its inception, SysMod has evolved into a dynamic and expanding community, as the increasing number of contributions and participants illustrate. SysMod maintains several online resources to facilitate interaction among the community members, including an online forum, a calendar of relevant meetings and a YouTube channel with talks and lectures of interest for the modelling community. For more than half a decade, the growing interest in computational systems modelling and multi-scale data integration has inspired and supported the SysMod community. Its members get progressively more involved and actively contribute to the annual COSI meeting and several related community workshops and meetings, focusing on specific topics, including particular techniques for computational modelling or standardisation efforts.
Associations of Taste Perception with Tobacco Smoking, Marijuana Use, and Weight Status in the National Health and Nutrition Examination Survey
Authors: Chao Ariana M , Zhou Yingjie , Franks Alexis T , Brooks Brianna E , Joseph Paule V 
Published: April 2021

AbstractHabitual smoking of tobacco and marijuana can lead to weight changes and poor diet quality. These effects may be caused by taste changes related to smoking and marijuana use. This study examined the associations among taste perceptions of a bitterant (quinine) and salt, tobacco and marijuana use, and weight status. We conducted a cross-sectional analysis of adults who responded to the National Health and Nutrition Examination Survey in 2013–2014. Participants (n = 2808; female = 51.7%) were adults ≥40 years with an average body mass index (BMI) of 29.6 kg/m2. Participants completed whole mouth and tongue tip assessments of bitter (quinine) and salty (NaCl) tastes, and questionnaires on demographics, cigarette, tobacco, and drug use. Measured height and weight were used to calculate BMI. Compared with never smokers, current smokers reported increased bitter ratings. Smoking status was not associated with salty taste intensity ratings after adjustment for demographic variables. Current marijuana users reported lower tongue tip quine ratings than never users. Among current smokers, current marijuana users had lower whole mouth quinine ratings than never users. Taste perception for salt and quinine for current and former smokers as well as marijuana smokers varied in whole mouth and tongue tip assessment. Changes in taste perception among cigarette smokers and marijuana consumers may be clinically relevant to address to improve diet and weight status.