bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and simulation of microstrip fractal patch antenna
Authors: Nitish Kumar P , Pavan R , Suganthi J , Kavitha T 
Published: February 2021

Abstract
The proposed fractal antenna is designed to operate at the frequency of 7.23 GHz using an FR4 substrate of relative permittivity of εr = 4.4. Different optimization techniques have been used, such as slots, use of meta-materials, fractal design, Feeding Techniques, to improve some antenna parameters. The resulting fractal design provides a gain of 10 dBi and a return loss of -19.8 dB which is about 90% of the input power radiated.
A Comprehensive View on Information Metering, Monitoring and Measurement of a Smartgrid
Authors: Brinda P , Usha Rani P 
Published: February 2021

Abstract
Smart grid is a type of electrical grid which are capable of performing different kinds of operation, measurement of energies through several applications like smart application, smart meter, energy efficient resource, and renewable energy resource. Smart grid with the utilization of computer application tries to enhance the communication, connectivity among other components, and automation program. With the help of self-monitoring system it can enable two-way communication digitally. Smart grip can be analyzed utilizing 3 important aspects which are management system for Smart Grid, infrastructure, and protection system for smart grid. This research paper mainly focuses on the smart grid infrastructure system. The infrastructure system is then further divided into various types of a subsystem as smart energy, smart information, and smart communication. This research highlights on smart grid information metering and measurement system with its recent trends.
DC Microgrids: Architecture and Challenges
Authors: Priyadarshini Padhi Priyanka , Deepa K 
Published: February 2021

Abstract
In the evolving era, microgrid wins the heart in all power fields. Among that DC configuration achieved more demand because of its less complex structure, low cost, more reliability and more power quality and last but not the least the control scheme is less complex than AC microgrid. Management of power and energy are the evolving traits adopted by researchers now a days. This paper mainly aims at the comparative analysis of different topologies, structure, and operational mode of DC microgrid. Despite the global energy crisis and the increasingly atmospheric pollution, distributed generation integration with renewable energy is becoming a potential trend in technology. Finally, attention has been paid to the recent challenges to the DC microgrid system.
Investigation of performance and emission characteristics of four stroke single cylinder diesel engine with cotton-seed biodiesel
Authors: Mehta Bhavin , Subhedar Dattatraya , Patel Gaurang , Swarnkar Abhishek 
Published: February 2021

Abstract
In present article, engine performance and emission characteristics were investigated with various blends of cotton-seed bio diesel and diesel. Reason to choose cotton seed bio diesel is its thermophysical properties which is identical with diesel. It also consists of higher oxygen content which directly improves combustion efficiency of the engine. Four Stroke, Single cylinder, diesel engine was tested under various blends consist of 5%, 10%, 15% and 20% (by Vol) of cotton seed biodiesel. Experimental results found no significant variation in brake thermal efficiency up to 10% biodiesel blend then it found to be dropped gradually. Brake thermal efficiency decreased by 12% at 20% biodiesel blend. CO & HC emissions exhibited decreasing trends with percentage increase in biodiesel concentration. Increase in NOx emission was insignificant up to 10% biodiesel blend. It can be further noted that 10% biodiesel diesel blend shows optimized performance and emission results.
Effect of Al2O3 and SiC nanoparticles on tribological properties of bi-directional glass fiber reinforced composites
Authors: Patel G A , Chaudhary V P , Mehta B H , Swarnkar A D 
Published: February 2021

Abstract
Composite materials shortened from composition material are an emerging field in today’s world. It is a rather cheap product that gives us the required strength. They are used in buildings, bridges, colleges and also not to forget many structures like boat hulls and swimming pools, etc. In Present research work composite materials made with Bi-directional glass fiber sheet as reinforcement material and polyester as matrix material. The nanoparticles of Al2O3 and SiC used as additive to identify the effects on tribological properties. The experiments carried out under constant sliding speed of 5000 meter by varying the load values in range of 20 to 80 N and the sliding speed from 2 to 5 m/s to find the effect of nanoparticles on wear and friction properties. The results show the improvement in wear property of GFRC+5% Al2O3 compare to GFRC and GFRC+5%SiC under different loading condition and sliding speeds. The COF value decreased continuously under loading condition for GFRC+5%SiC and shows minimum COF as loading values increased while in the case of sliding speed GFRC shows batter results compare to GFRC+5% Al2O3 and GFRC+5%SiC.
Effect of air-steam agent on co-gasification of biomass and coal
Authors: Suyitno  , Muqoffa M , Ilyas A X , Juwana W E 
Published: February 2021

Abstract
The goal of the study is to investigate the impact of adding steam as a gasification agent for the co-gasification of biomass and coal. Study has been performed with ASPEN PLUS simulation, and has been confirmed by experimental findings. The coal and biomass ratio of 60% was gasified at an equivalent ratio of 0.29 and 0.35. The addition of steam was as much as 0%, 25%, 50%, 75%, and 100% for each equivalence ratio difference. The findings demonstrate that the best quality of fuel gasses such as CO and It is obtained by applying up to 75% steam where the temperature of the reactor can still be held at 770°C. The cold gas efficiency and carbon combustion efficiency where equivalent ratio ranged from 0.29 to 0.35 at 75% steam to air ratio are 61.2-67.3% and 77-79%, respectively. Co-gasification between coal and biomass with a combination of air and steam may technically be a replacement for biomass gasification with air.
Airflow noise reduction in digital stethoscope add-on device
Authors: Dubey S G , Sudhakar D S S , Saha S 
Published: February 2021

Abstract
Stethoscope is an essential device for doctors, but it has a steep learning curve. The use of an electronic stethoscope facilitates the doctor to examine the patient remotely with high quality audio. This paper deals with, occurrence and rectification of airborne noise based on ANSYS fluent flow simulation to predict the air flow inside the enclosure and acoustic performance improvement by designing the enclosure.
Analytical study on new types of shear connectors in composite slab
Authors: Shirgaonkar Aniket A , Patil Yogesh D , Patil Hemant S 
Published: February 2021

Abstract
Profiled deck composite slab is gaining more popularity from the past two decades due to its easy, fast and economical construction. Shear connectors are a key element in the composite slab. It creates a tensile link between the steel sheet and Concrete and also transfers horizontal shear stresses from Concrete to deck sheet. The overall stiffness of the composite slab depends upon the shape of the profiled deck sheet as well as the type of shear connector utilized. In this research article, two new types of shear connectors named as S type and W type were proposed for profiled deck composite slab.The research comprises of non-linear finite element analysis using an effective constitutive model of the experimental four point bending test using ANSYS software. The behaviour of these new type of shear connectors are compared with conventionally used shear studs. The effectiveness of shear connectors in the composite system is analyzed by comparing it with a model without any shear connector. The behaviour of four composite slab models is analyzed based on deflection and slip characteristics. S-type and W-type shear connectors showed excellent behaviour compared to a conventionally sued shear connector and proved to be a better alternative solution.
SHIP model: redesign the assistive walker for children cerebral palsy with the concept of useability, safety, and efficiency
Authors: Susmartini S , Herdiman L , Priadythama I 
Published: February 2021

Abstract
Cerebral palsy (CP) is a diagnostic term commonly used to describe problems in CP children characterized by body movements and postures that make walking activities difficult. This device is very useful for them to maintain a safe walking pattern. Gait performance analysis walker for CP children must be considered well. Many internal and external factors are involved or forgotten in the redesign decision. We study the need for assistive devices for children CP because our goal is how to apply the redesign through the SHIP model to walker planning in accordance with universal design principles. Data collection in the SHIP model was carried out by semi-structured interviews. A total of 18 participants were involved, including 6 children with cerebral palsy, aged between 12 and 13 years, 6 parents of CP children, 2 caregivers, 2 academics and 2 practitioners. Gait analysis to measure the walking ability for children CP uses a walker and measured at the end of a 1-week training session. The results of the SHIP model obtained several improvements to the initial walker design associated with the redesign of the walker, according to the needs of useability, safety, and efficiency. This redesign of the walker for CP children can increase in speed in the walking in the anterior position is 14.3% and the posterior position is 25%. This shows the importance of interaction between the stakeholders involved, but also provides evidence that the walker needs of CP children may differ from one another because they are at different stages of development and different roles in their environment.
Investigations into performance of conventional and conformal cooling channels of a plastic injection mold.
Authors: Purav Advait C , Singraur Deepika S , Sudhakar D S S 
Published: February 2021

Abstract
In this paper, a comparative simulation analysis with traditional, conventional and conformal cooling channels of a plastic injection moulded part with variation in wall thickness has been analysed with the aim of determining which configuration will give better results in terms of part cooling time, volumetric shrinkage and warpage. The objective is to improve the part quality and to reduce the overall cycle time needed to manufacture the part.
Thermal-hydraulic analysis of Cable-In-Conduit Superconductor: A CFD approach
Authors: Vaghela Hitensinh , Sarkar Biswanath , Lakhera Vikas , Prasad Upendra 
Published: February 2021

Abstract
Superconducting (SC) magnets with Cable in Conduit Superconductor (CICSC) winding, cooled by helium at 4 K temperature are employed for many applications which require high magnetic field and high current densities. The construction of CICSC aims to maintain superconductivity state by optimization of various parameters, i.e., thermal stability, ratio of normal conductor to superconductor material, mechanical strength, low hydraulic impedance, current density, magnetic field, etc. The cryogenic thermal stability of the CICSC is of prime importance for the safe, stable and reliable operation of SC magnets. The prediction of thermal and hydraulic behaviour of CICSC in large SC magnets is difficult due to the complex geometry, variation of fluid properties, various heat in-flux incidences over the long length of CICSC and a complex heat transport phenomenon. Here we present a CFD approach for the thermal hydraulic analysis of a typical CICSC applying the porous media analogy and discuss the suitability for a wider range of operational scenario at higher Reynolds number and for various geometries.
Mass production of re-entrant cubic auxetic structure
Authors: Balaji B , Gupta Burela Ramesh , Ponniah Ganeshthangaraj 
Published: February 2021

Abstract
The unique characteristics of auxetic materials has attracted significant attention in the research domain. Its distinguishing negative Poisson’s ratio has found its way to targeted applications where normal materials fail to deliver the expected results. The manufacturing of macro sized auxetic structures has always been a challenge. This paper proposes the possibility for mass production of auxetic structures. Materials available in standard shapes are utilized to manufacture the auxetic structure. A new re-entrant cubic auxetic structure is developed, analysed and fabricated. This auxetic structure provides a better scope for mass production.
Frictional behaviour of AA7050/7.5B4Cp/Gr hybrid composites fabricated through stir casting
Authors: Ranjith R , Venkatesan S , Sivakumar N S , Naresh Kumar P 
Published: February 2021

Abstract
In this research, AA7050 aluminium alloy strengthened with Boron carbide (B4Cp) and Graphite (Gr) was manufactured by stir casting. The impact of the reinforcing particles on various process parameters on the friction coefficient were thoroughly examined utilizing pin-on-disc apparatus with experiments centred on design of experiments. The outcomes exposed that the coefficient of friction decreases with upsurge in percentage reinforcement and increases with applied load, and sliding distance. With respect to the sliding velocity it decreases until a saddle point, there after it starts to increase. Utilising the response surface methodology, a mathematical model for the friction coefficient was established.
Microwave assisted green synthesis of ZnO nanotubes using Amorphophallus paeoniifolius tuber extract.
Authors: Naresh Kumar P , Vijayakumar B , Ranjith R 
Published: February 2021

AbstractGreen nanoparticle synthesis is gaining significant interest and is the perfect alternative to the chemical and physical synthesis process. This paper introduces a novel plant-mediated microwave-assisted green synthesis of Zinc Oxide (ZnO) nanotubes usingAmorphophallus paeoniifoliustuber extract. In the nanoparticle synthesis process, the tubers phytochemicals serve as a reducing agent and a bio template. The synthesized nanoparticles are exposed to microwave radiation for 15 minutes and are then annealed at 400°C for 1 hour. The green synthesized nanoparticles are analyzed with XRD, UV-Vis spectroscopy, HRTEM, EDX, and FTIR spectroscopy. Subsequently, TEM images depicts the tube-shaped ZnO NPs with d-spacing of 2.3Å. The XRD confirms the wurtzite phase with 14 nm as mean particle size.
Impact of dedicated mini roundabout on the capacity and level of services of the unsignalized intersection
Authors: Rahmat K , Sugiarto S , Saleh S M 
Published: February 2021

Abstract
This paper is aiming at investigating the impact of dedicated mini-roundabout on the capacity and level of services at a four-legged unsignalized intersection. The assessment was carried out based on two scenarios namely before the installation mini-roundabout (existing) and after installation (improvement). Datasets were collected at Ujung Stasiun KA unsignalized intersection, which is in the center of Bireuen City, Aceh province of Indonesia. A video-cameras are installed to observed traffic patterns including hourly volume, movement trajectories, and vehicle composition during three days on a morning, afternoon, and evening peak hour traffic. The Indonesian highway capacity manual (IHCM, 1997) is used to evaluate the capacity and level of service in existing conditions while the simulation approach using VISSIM is then performed to assess the scenario of virtual implementation dedicated mini roundabout. The result of analysis demonstrates that the capacity of unsignalized slightly increases by 5% while the delay and level of service are significantly reduced to 42% (31.02 sec to 18 sec), and improved from E to C, for delay and LOS, respectively. It can be concluded that the improvement of the existing condition by implemented a dedicated mini roundabout could improve the capacity and LOS in the study area.
The influence of architecture of Umah Pitu Ruang on Gayonese modern housing in Takengon
Authors: Putra R A , Zahrah A , Dewi C , Izziah  
Published: February 2021

Abstract
Takengon is the capital of Central Aceh district located in Aceh highland. The geographical location of Takengon in the highlands certainly distinguishes the climate in this city from the cities in the lowlands and the coast in Aceh. This condition certainly affects the architecture in Takengon. The housing owned by the people is certainly constructed in such a way as to be responsive to climatic conditions in this city. Besides, housing is likely influenced by the customs and culture of the local people as well. This study aims to examine to what extent umah pitu ruang, which is the traditional architecture of the Gayonese, influences the modern housing architecture that exists today. Based on this study, the influence of umah pitu ruang as a traditional Gayonese house on the housing of modern society is almost no longer exist in terms of spatial arrangements and ornaments. This makes the values in the Gayonese traditional architecture could disappear over time.
Analysis of the effect of using wire mesh layers on hot asphalt mixtures with modulus of elasticity
Authors: Ismy R , Husaini  , Saleh S M , Isya M 
Published: February 2021

Abstract
The value of the modulus of elasticity is very important to know for analyzing the strength of a hot asphalt mixture because the increase in the modulus of elasticity indicates an increase in the ability of a mixture to withstand loads by itself. The use of the wire mesh layer as reinforcement in hot asphalt mixture is considered capable of increasing the modulus of elasticity. The aim of this study was to analyze the relationship between the use of wire mesh layers in the hot asphalt mixture with the modulus of elasticity. The research was conducted using the three-point flexural test apparatus. Based on experiment methode, it was found that hot asphalt mixture with a layer of wire mesh laying 30 mm from the surface of the specimen was the best type of specimen modeling with a bending resistance value of 291.85 KN. The higher the flexural resistance value that can be withheld, the higher the modulus of elasticity, namely 3,800.13 MPa. The best asphalt mixtures are characterized by a high modulus of elasticity, high stress, and low strain.
Assessment of regional spatial plan (RSP) of areas along the active fault of Seulimeum segment in Aceh Province
Authors: Darmi A , Ismail N , Aulia T B , Nanda M , Yanis M 
Published: February 2021

AbstractThe Seulimeum Segment is the northernmost branch of the Great Sumatran Fault. This active fault crosses settlements in Aceh Besar Regency and Pidie Regency in Aceh Province. Tectonically, this situation can be a threat along the active fault line. In this study, active fault lines of the Seulimeum Segment were mapped. Based on the active fault lines, residential areas, infrastructure distribution, and Regional Spatial Plan (RSP) were reviewed for eligibility. Some areas, e.g., Tangse, Lamtamot, and Krueng Raya, were the focus of this study. Avoidance zones were categorized based on their distances from the active fault line, which were 20 m from the fault, 100 m from the fault, and 300 m from the fault. According to an active fault line analysis on the RSP map, infrastructure map, and demographics map, the Krueng Raya area would be the most affected by losses due to disasters in the future. Some buildings, hospitals, mosques, government offices, settlements, and industrial areas in Krueng Raya are situated along an active fault line. It is because the RSP of this area has not yet considered the potential for geological disasters in the infrastructure development process. Some recommendations have been proposed to reduce the impact of losses in the future.
Effect of enforcement operations during festive seasons called Ops Sikap on road traffic accidents of Malaysia
Authors: Darma Y , Karim M R , Abdullah S 
Published: February 2021

Abstract
The road safety statistics have shown a remarkable increase in number of injuries during the festive seasons in Malaysia. To anticipate the burden of the injuries, the police has carried out an advanced enforcement operations called “Ops Sikap” since 2001. Evaluations on the effectiveness of the operations are, however, found inconclusive. This study employed ARIMA and intervention model to further evaluate the effect of the Ops Sikap. The effect of an intervention on the number of accidents is measured using the pulse function. ARIMA model is used to forecast the series without such intervention and become the basis for the ARIMA(p,d,q) process of the intervention model. Forecasted accidents from the intervention model are then compared with the ARIMA one to attain how far the effect. The results show that the operations have reduced the number of accidents in many years. Out of twenty five Ops Sikap carried out, fourteen times (56%) have successfully brought the accidents down. The operations have provided the reduction of the monthly accidents up to 0.7% as compared with the accidents if there were no such operations taken.
The vulnerability of housing on the north coast of Banda Aceh to disasters from the sea
Authors: Nursaniah C , Irwansyah M , Qadri L , Mariana  
Published: February 2021

Abstract
Alue Naga is an example of a coastal village in the northern city of Banda Aceh which was severely damaged during the earthquake and tsunami in 2004, but until now there has been no maximum environmental improvement and mitigation for this coastal settlement. The ideal initial mitigation study to be carried out for coastal settlements is to analyze the physical vulnerability of housing as a physical structure characteristic that determines the potential damage to disasters. This study uses a qualitative descriptive method with data collection through observation, a global positioning system, interviews and questionnaires. Data were analyzed using geographic information system techniques to determine the spatial condition of the area. Assessment of the potential vulnerability of housing in each cluster of Alue Naga settlements is obtained by scoring and weighting methods for variables that contribute to the level of disaster vulnerability, namely the type of building construction, the shape of the ground floor of the building, and the orientation of the building to the coast. The results showed that the potential vulnerability in each cluster was different for each variable being reviewed, there were clusters that were vulnerable, more vulnerable, and very vulnerable to the threat of disasters from the sea. It takes serious action from stakeholders to further improve protection and mitigation against disasters from the sea in the northern coastal settlements of Banda Aceh City with structural mitigation and non-structural mitigation.