bluuebunny/crossref_metadata_2025_split huggingface dataset:
Testing empirically the impact of inflating diesel prices in WPI and CCI
Authors: Shinghal Ajay Kumar , Nagar Harish 
Published: June 2020

Abstract
Diesel is a price determinant among various other commodities, because it is being used extensively in the construction projects, and rise or fall in its price will directly have an impact on the price of various commodities and overall cost of a construction project. In the Indian construction industry, in most of the contracts barring few, the variation in the project cost due to inflating diesel price is being calculated using WPI. CIDC has taken an initiative to develop construction-specific cost indices (CCI) but it is not being commonly used by the industry. Empirically, it has been observed that the cost of escalation, in the price of diesel, obtained from the present method is too low then the actual cost escalation incurred in the construction projects. For this reason, the focus of this study is on WPI and CCI with un-predictable inflation in the price of Diesel in India.
Analysis of air quality data in the city of Bogotá through clustering techniques
Authors: Silva Jesús , Adriana Londoño Luz , Varela Noel , Pineda Lezama Omar Bonerge , Lozano Ayarza Liliana Patricia , Mojica Herazo Julio Cesar 
Published: June 2020

Abstract
Climate change is one of the problems facing society today because of its impacts on the health of living beings. That is why the authorities need tools that provide them with the information necessary to make decisions that will reduce the impact of such change. This paper proposes a strategy to group the air quality data of the metropolitan area of the City of Bogotá from 2014 to 2018, in order to recognize the measurement patterns in the environmental contaminants that cause pre-contingencies and environmental contingencies in the area of the City of Bogotá.
Study of the principal component analysis in air quality databases
Authors: Silva Jesús , Londoño Luz Adriana , Varela Noel , Pineda Lezama Omar Bonerge 
Published: June 2020

Abstract
Technological development has facilitated daily habits, business, the manufacture of large quantities of products, among other types of industrial activities; however, these advances have caused environmental deterioration that seriously threatens the development of society. The increase of greenhouse gases in the atmosphere affects the health of millions of people and is the main factor that has modified the climate on planet Earth. Faced with this situation, it is necessary to carry out actions that allow to quickly adapt to this change and mitigate its effects. The present study proposes the analysis of main components in the data of the pollutant measurements in the city of Bogota, Colombia with the purpose of obtaining a more compact representation of these data, to later apply grouping techniques and obtain factors that allow the emission of an alert for pre-contingency and contingency.
Energy Balance in a Greenhouse: Temperature and Humidity Monitoring
Authors: Viloria Amelec , Rosania Altahona Tiana Alexandra , Pineda Lezama Omar Bonerge 
Published: June 2020

Abstract
Currently, the world is in a necessary stage of energy transition due to the high rates of pollutants emitted into the environment. The agricultural sector contributes only 7% of these to the environment, a figure that is not alarming but certainly intervenes in the generation of pollution [1]. Environment offers some properties that can be considered such as the radiation provided by the sun, which is used today in greenhouses ranging from small and rustic to others of large dimensions and sophisticated systems of control and monitoring. This study consists of the supervision with a data acquisition system which (temperature and relative humidity sensors), show the thermal and humidity behavior, thus allowing to know which physical magnitude varies faster through time.
Energy potential of vinasse derived from rum manufacturing
Authors: Vásquez Stanescu Carmen Luisa , Carrillo Kevin , Espinoza Betzabeth , Rizzo Aniello , Fajardo Carla , Ramírez-Pisco Rodrigo , Viloria Amelec 
Published: June 2020

Abstract
The purpose of this study is to analyse the energetic potential of the vinasse coming from the distillation of rum. 10 to 15 l of vinasse are obtained for each unit of alcohol. This is being used as fertilizer for the cultivation of sugar cane. Three samples are analysed for physical, chemical and fuel properties: raw vinasse, its distillate and residue. The results demonstrated that raw vinasse can be used as an additive to liquid fuels with a calorific value of approximately 792 kJ/kg and a boiling point above that of flammability, which flavours the non-formation of vapours. The amount of solid waste present could be detrimental to atomization inside furnaces or its flow through combustion chambers, so it must be pre-treated.
Study of technologies implemented in the operation of SF6 switches
Authors: Díaz Sergio , Nuñez José , Berdugo Kelly , Gomez Kevin 
Published: June 2020

Abstract
This research aims to evaluate the trends in the publication of papers on issues related to power circuit breakers, aimed at the technologies implemented, as well as those countries with higher level of publications, making a comparison between authors, research institutes, and a description of the last 10 years with more publications. All the information found in this report is compiled in bibliographic databases such as books of substation designs and research papers with a focus on electrical protection equipment and emphasis on high voltage switching devices. A technology research is conducted over the last ten years to analyze the state of the art of high voltage operating elements with respect to new technologies.
Experimental determination of resistance to penetration by dynamic action of a body made entirely of iron oxide and iron oxide and chip alloys
Authors: Méndez Habid Santiago , Cruz Consuegra William De La , Mesino Enois Molina , Rojas Millán Rafael Humberto , Orozco Aguinaga Carlos Alberto , Rivera Moisés Hinojosa 
Published: June 2020

Abstract
The present article arises from the study of the mechanical behavior of a body composed entirely of iron oxide and iron oxide and chip alloys through the experimental determination of resistance to impact by dynamic action through the application of loads of impact provided by a Charpy pendulum. The resistive evaluation will be useful for the development of new engineering materials, either to design structures or to design and manufacture machine parts. The study also evaluates the materials’ level of absorption of impact energy, or their capacity to partially absorb the energy from the impact loads. Possible applications include the design of new materials for use in the automotive industry, for example for collision protection systems for vehicles, among others. The tested materials are derived from metallurgical processes that involve various stages of iron smelting, from melting and casting of the metal until obtaining the test specimens.
Image encryption using dynamic DNA encoding and pixel scrambling using composite chaotic maps
Authors: Aditya K , Mohanty Ashish K , Ragav G Aravinth , Thanikaiselvan V , Amirtharajan R 
Published: June 2020

Abstract
In this digital world, encryption plays an important role in various domains. Securing the information is the main goal when transfer of information takes place. Image encryption is a very important part of this as it applies to various domains like medical, multimedia, defence etc. A new method for image encryption is proposed here taking into account the “confusion-diffusion” structure. While working with secure data, requirements like fast computation, compression and processing are important issues. Deoxyribonucleic Acid (DNA) encoding has the capability to cope up with this requirement. In this paper a new algorithm is proposed based on composite chaos map for pixel scrambling and hence image encryption. First the algorithm takes the image and XORs with a composite chaotic map which further goes into dynamic DNA encoding followed by pixel scrambling which results in the image being very random thus it becomes less prone to attacks. The method discussed performs efficiently as shown in the experimental results.
AlGaN/GaN HEMT for highly sensitive detection of Bio-molecules using transconductance method
Authors: Kumar Reddy P Pavan , Lakshmi S Bhagya , Arivazhgan L , Raj Kumar J S , Nirmal D 
Published: June 2020

Abstract
For the first time, AlGaN/GaN HEMT is demonstrated for bio-sensing application using transconductance analysis. A lot of HEMT based biosensors were developed experimentally but very few reported on sensing applications. These devices are ideal for sensing or tracking biomolecule because of the spontaneous and piezoelectric polarization properties. AlGaN/GaN HEMT with nanogap cavity is used to detect different biomolecule like streptavidin, protein and uricase. The sensitivity of AlGaN/GaN HEMT is investigated through drain current (ID) and transconductance(gm) and is analyzed using Technology Computer Aided Design (TCAD) tool. The result shows a noticeable change in drain current on introducing different biomolecules below the gate cavity region. Higher sensitivity was obtained for with Transconductance analysis than with drain current analysis.
Free vibration analysis of laminated sandwich plates under thermal loading
Authors: Garg A , Chalak H D 
Published: June 2020

Abstract
In present work, free vibration analysis of laminated sandwich plates is carried out under thermal loading. C-0 finite element based higher-order zigzag theory is used during analysis. Third-order variation of in-plane displacement field is assumed while for transverse displacement field, quadratic variation is used for core region and is taken constant for the face layers. Present model is free from any kind of penalty requirements. Also, the proposed model satisfies transverse shear stress continuity condition at interface and same is zero at top and bottom faces. Present results are compared with those available in literature. New results for sandwich plates are proposed in the present work which will serve as benchmark for future studies.
Co-sputtering of Lu2O3, Eu2O3 and Ga2O3 for optoelectronics applications
Authors: Mandal Pramod , Singh Udai P , Roy Sudesna 
Published: June 2020

Abstract
In this paper oxides of lutetium, gallium and europium were co-sputtered on to soda lime glass substrates to produce mixed rare earth oxides by physical vapour deposition (RF magnetron sputtering). Post deposition, the films were characterized by FESEM, XRD, ED-XRF and UV-Vis spectroscopy. The combinatorial oxides were successfully deposited on soda lime glass substrate with an aggregate thickness of 433 nm with uniform nanocrystalline microstructure and a transparent surface, with no visible cracks and defects. The optical properties show that the optical transmittance in the visible region (300 to 800 nm) is around 83%. The Tauc plot calculates that the band gap to be 3.96 eV indicating its good light absorbing capability. This shows that co-sputtering is an effective method to produce mixed rare earth oxides with wide band gap which can increase the operating temperatures and switching speeds for opto-electronic devices (like LED and radar).
Inhibition effect of sodium benzoate, zinc benzoate and zinc bromide on low carbon steel corrosion in dilute H2SO4 and HCL solution
Authors: loto Roland Tolulope 
Published: June 2020

Abstract
The corrosion inhibition performance of inorganic chemical compounds of sodium benzoate, zinc benzoate and zinc bromide on low carbon steel was studied in 0.5 M H2SO4 and HCl solution at volumetric concentrations of 10%, 30%, 50% and 70%. Results obtained from LCS inhibition in H2SO4 showed sodium benzoate performed poorly with highest and lowest inhibition efficiency value of 50.5% and 36.24% at concentrations of 70% and 10%. Zinc bromide performed most effectively in H2SO4 with highest and lowest results of 90.96% and 76.96% at concentrations of 50% and 10%. Zinc benzoate displayed good results with peak value of 88.32% at 70% concentration and lowest value of 46.79% at 10% concentration. The corresponding performance of the compounds in HCl solution showed zinc benzoate performed more effectively with highest and lowest value of 70.17% and 33.26% at concentrations of 50% and 10%. Sodium benzoate and zinc bromide displayed average performance in HCl solution with optimal values of 67.38% and 55.40% at 30% concentration. Statistical analysis through analysis of variance showed exposure time is the only relevant factor (independent variable) in both acids responsible for the inhibition performance of the compounds with significance factor above 100%. The second independent variable (inhibitor concentration) was determined to be statistically irrelevant with significance factor below zero.
Investigation of copper-water loop heat pipe for different filling ratios
Authors: Anikivi Atmanand , Naik Rudra , Narasihma K Rama 
Published: June 2020

Abstract
The present work reported here involves the experimental investigation and performance evaluation of loop heat pipe (LHP) with flat evaporator and wick made up of stainless-steel mesh. The experiment is conducted for different fill ratio such as 40%, 50%, 60% and different heat loads of 20 W, 40 W, 60 W, 80 W and 100 W using De-Ionized water as fluid for electronic cooling applications. And evaluated operating performance of loop heat pipes for both steady and transient state. The evaporator, condenser, liquid line and vapour line are made up of copper and are placed in horizontal orientation. The results show Under forced water-cooling condition with the cooling water temperature of 25 °C, the LHP can transfer a maximum heat load of 100 W with the evaporator temperature of 92°C and a minimum thermal resistance of 0.5332 °C/W.
Simulation and optimization for a plastic component
Authors: Pashte Samhita , Wagle Kiran , Agrawal Shailesh , Sudhakar D S S , Patil Bhushan , Singraur Deepika S 
Published: June 2020

Abstract
This paper presents the simulation of injection moulding process of the subject component and noting the deflection results using finite element software. Subsequently some changes were made to the tool and part design of the subject component and the modifications which gave the minimum deflection were incorporated and used for further optimization of warpage using design of experiments.
A feasibility study of plastic as an alternative to air package in performance vehicle
Authors: Kandekar Prithviraj , Acharaya Akshay , Chatta Aakash , Kamat Anup , Patil Arun Y , Kotturshettar Basavaraj B 
Published: June 2020

Abstract
Blowing tires are far more than just distress. The Government body National Highway Traffic Safety Administration (NHTSA) estimates 733 fatalities in 2016 alone and at least 11,000 tire-related crashes arise every year, also not all of these were a result of a burst tire, but unquestionably they contribute. This analysis aims to replace packaging materials like air with different non-explosive medium. In this analysis, plastic is the priority material as there is an abundance of plastic on earth and we need to manage the extensive use of plastic. Every year 380 million tons of plastic get wasted. In this analysis, we are considering a Formula one tire which is a sport of extensive engineering and ideas. Only static structural analysis is carried as a lack of resources of manufacturing a special type of plastic which again is the other way around then of reducing the pollution. The model of the wheel was prepared according to the rules stated by the FIA in SOLIDWORKS 2016. The necessary calculations include reaction forces, mass-energy conversions and bending moments. The model was analysed for two materials which are air and polyethylene. The virtual simulation and structural analysis were performed using ANSYS workbench. Some of the important parameters which were considered for analysis are the order of an element, mesh size and mesh type. Both the air and polyethylene simulation results were compared and a convergence graph is plotted to check the results of deformation with varying element sizes.
Flow modeling and simulation study of vacuum assisted resin transfer molding (VARTM) process: A review
Authors: Shah M , Chaudhary V 
Published: June 2020

Abstract
In recent times, vacuum-assisted resin transfer molding (VARTM) has become a promising technique for the processing of large composite structures. On the contrary, there are few issues related to VARTM processing as many process parameters are involved and required to optimize them to achieve high fiber volume fraction containing composite material. These issues can be addressed and resolved by an understanding of various flow modeling techniques and simulation methods. In this present study, a review of different approaches in flow modeling and simulation of the VARTM process is presented. The processing technology of VARTM along with the fundamental and constitutive models for mold filling stage as well as curing stage such as permeability, compaction, resin viscosity and cure kinetics are presented. The numerical simulation methods adopted by various researchers used to simulate the filling processes with their specific applications and simulation software are also reported and reviewed. As an outcome, identification of permeability of various fibers and simulation processing time are more predominant factors to perform accurate VARTM simulation.
Study on rectification of issues faced by ultrasonic welding of medical “e-stethoscope” by adhesive bonding technique
Authors: Bhopi S C , Miriyala V B R , Parab S V , Haldankar A S , Pandey S P 
Published: June 2020

Abstract
Ultrasonic welding is used as an effective method for the welding of thin films in medical plastics for pills to the packing of medical devices. It provides the device with high adherence to sustain in the working environment. Despite being one of the most acceptable methods to fuse the materials in the medical field, it’s few limitations can cause a great impact on the quality of the product. The paper deals with the problem faced by a company named “Ayu Devices Pvt Ltd.” which manufactures Electronic Stethoscopes. The device case was welded using the ultrasonic welding process, but because of the frequency conveyed on different electronic components, it led to the rejection of the devices in the quality check-up. Since the rejection rate raised to an approximation of 45% at the quality check-up, there was a need to find an alternate method in a similar device case. The adhesive bonding technique using cyanoacrylate is adopted for further manufacturing of the device. A fair comparison is made based on the bond strength delivered and the rejection percentage due to electronic components failure by both the methods.
Mechatronic approach in hydraulic braking system
Authors: Boorla Rajesh , Moizuddin Mohammed , Reddy Gankidi Gangadhar , Nouman Syed Faisal 
Published: June 2020

Abstract
In present automotive sector there are magnificent transformations from mechanical to electrical with intensive changes. Each and every one is showing enthusiasm towards vehicles. In addition, humans are very much fascinated towards vehicles where they are driving faster than before. Many types of braking system have been introduced but this paper explains whether the brakes can be applied with less human effort by removing the solid linkage present in between pedal and master cylinder. In order to make the braking system economical and affordable, we are introducing a mechatronic technique which helps us in eliminating the solid linkage present in between the pedal which is linked to master cylinder, linking the pedal to linear potentiometer for the resistance. As the resistance starts varying, difference in braking will be observed. This technique helps in reducing manual effort. Working will be effective and efficient if the components are given more than recommended power supply.
Turned AISI 4340 Heat-Treated Steel Surface Quality Investigations in Dry and MQL Cooling Conditions
Authors: Sikdar Hiraman N , Rao M VeeraBhadra , Patil Bhushan T , Shaikh Vasim A , Sudhakar DSS 
Published: June 2020

Abstract
Heat treatment of machine components such as Annealing, normalizing, hardening, case hardening and other surface treatments have given better endurance to static and dynamic loads and stresses for many service applications. Most of the components are heat treated after machining once major dimensional controls are met. However, after heat treatment, it was observed the dimensional inaccuracies such as actual dimensions values, surface quality deterioration due to scale formation and material combinations with surrounding media at elevated temperatures attempts to recheck the errors and dimensional variations in the components. Machining after heat treatment also is necessary and is practiced and there arises problems of different chemistry and physical behavior of tool and material machining conditions. In order to know the effects of the heat treatment on machining, an attempt is made to study the variations in the process using design of experiment (DOE) approach taking surface roughness parameter as response.
Productivity improvement through identifying hazardous conditions in steel foundry
Authors: Bernard Edward , Patange Gajanan Shankarrao 
Published: June 2020

Abstract
Steel production from past decade shows prominent growth in Indian economy. Rapid strides have also made towards further growth and commissioning of new capacities. One of the prominent Productivity measurement tool in any company is the labor cost and its safety. In this paper, we discuss and identify the core hazardous conditions in steel foundry which may directly effects the productivity of steel industries. We also suggested the measures taken from technologies advancement, and to improve the occupational conditions of foundry.
Influence of Al-3Ti-0.15C and Ce on Microstructure and Tensile Properties of Al-Si-Cu 319 alloy
Authors: Patel D N , Joseph J , Sutaria M P 
Published: June 2020

Abstract
In the present research, an attempt has been made to evaluate the effects of addition of Al-3Ti-0.15C (0.05wt%) master alloy with different concentration (0.1, 0.3, 0.5, 0.8, 1wt%) of cerium (Ce), a rare earth element on microstructure and tensile properties of Al-Si-Cu 319 alloy. Optical microscopy (OM) and field emission scanning electron microscopy (FE-SEM) with EDS analysis was employed to study the microstructural modification and existence of intermetallic compounds. Experimental results show that addition of Ce with up to 0.3wt% increases the tensile properties up to 49.13% as compared to base alloy due to refinement of α-Al and modification of eutectic silicon. In contrast, tensile properties decline above 0.3wt% addition of Ce due to formation of needle like intermetallic compounds. These Ce rich needles like intermetallic compounds suppress the effect of modification, decreasing tensile properties of modified alloy.
Design and analysis of multi-angular gearless transmission system
Authors: Barot R P , Patel D M 
Published: June 2020

Abstract
The present work mainly focuses on finding an alternate option of gear drives for various power transmitting applications in different sectors. In this study, the gearless power transmission mechanism created to transmit the power at various angles between the driving shaft and driven shaft, ranging from 0° to 180°. The system is modeled and analyzed in CREO5.0 to check the feasibility of the system. The speed analysis revealed that the speed ratio of the output shaft to the input shaft remained 1:1 during operation. The von mises stress analysis indicated that the design is safe under specific loading criteria. It observed from deformation analysis that the maximum displacement has occurred at the corner of the elbow link. The failure index analysis of the elbow link revealed that the inner curvature of a link is subjected to the maximum possibility of failure.