bluuebunny/crossref_metadata_2025 huggingface dataset:
Flow Characteristics of a Model Can-Type Combustor
Authors: Sriram A.T. , Shankapal S.R.
Published: December 2020

Numerical simulations are performed on a can-type combustor in order to indentify various flow features. Elementary flow features like jet-in-crossflow, opposed jets, swirl and recirculation zones are present in a combined form. Momentum flux ratio between axial air flow and radial primary air jets from the circumference of the combustor is an important parameter. While increasing mass flow rate of the radial jet, the jet-in-cross flow structure changes to opposed jet. Swirl of axial jet is favourable for opposed jet configuration. A step provided at the close vicinity of the primary jet allows the primary jet expansion and its flow structure is affected at the entrance of the combustor to favour for jet-in-cross flow configuration. The opposed jet configuration provides large recirculation at the upstream due to merging of vortices arising from swirl of axial jet and upstream movement of primary air jet. This helps in holding the flame and also for effective combustion. However, there is a lower temperature region at the downstream core of the combustor due to penetration of primary air jets. On the other hand, jet-in-crossflow configuration has shown hotter zone at the downstream core of the combustor. Hence, effective utilization of flow structure can be considered in future design.
Analysis of Auxiliary Structure Mounted on 8x8 Military Vehicle Chassis for Off-Road Logistics
Authors: Deulgaonkar Vikas Radhakrishna
Published: December 2020

Present work deals with the design, development of auxiliary structure mounted on high mobility off-road 8x8 wheeled military logistic vehicles or troop trucks. Such auxiliary structures offer a levelled base to the shelters carrying cargo ranging from sophisticated electronic equipment, tracking system, troops, weapons, arms and ammunition which require special environment to function. Design traits as clearance between the shelter and skids, intense load pattern, approach, departure and ramp angles and their effects on auxiliary structure design are presented. Design factors such as load distribution on front and rear axles, shelter height, ground clearance and their effects on the structure design are discussed. Finite element analysis (FEA) technique is utilized to simulate the behaviour of the auxiliary structure. Formulated auxiliary structure configuration possess exceptional resistance against twisting and bending due to introduction of the intense load pattern. Different configurations and variant load response of this structure is figured out using FEA simulation procedure. Application of statistical and experimental strain measurement techniques for design validation of the formulated structure is presented. Wilcoxon signed rank test is employed for evaluation of experimental and finite element outcomes.
Modal Analysis of Bus Body Structure using Finite Element Analysis Technique
Authors: Deulgaonkar Vikas Radhakrishna , Kulkarni M.S. , Khedkar S.S. , Kharosekar S.U. , Sadavarte V.U.
Published: December 2020

Present work deals with evaluation of dynamic characteristics of a bus body structure. The bus under consideration is a sleeper non-air conditioned vehicle for a passenger capacity of thirty and it is designed adhering to automotive industry standards. Modal analysis of the proposed bus design is carried using Ansys Workbench. With the aid of modal analysis ten mode shapes of the bus are postulated, corresponding frequencies and deflections are estimated. Mesh generator is used to mesh the complex bus model. The deflection and frequency magnitudes of proposed bus model is found with the help of Finite Element Analysis (FEA) technique and they are in good agreement with experimental results available in literature. Engine being the prime source of excitation, itâ€™s frequency is compared with the frequencies determined by FEA of the proposed bus body and it is observed that the frequencies of the bus body for ten different modes are far less than the minimum resonant engine frequency.
Stochastic Modeling and Analysis of a Heavy Duty Radiator
Authors: Hariram V. , Roy P. Robin
Published: December 2020

Governmental agencies across the globe are constantly evolving with stringent emission laws to tackle the problem of CO2 and NOx/SOx emissions. New emission standards force the Truck OEMâ€™s to redesign the engine. The paper is aimed to measure the header tube joint stress of the radiator subjected to random variations in geometry, shape and material properties. Linear analysis will not consider the uncertainty and randomness due to tolerance, process changes, part-part variation etc. Stochastic finite element analysis (FEA) is carried out to account the uncertainty in the system. The finite element model of radiator system is built and baseline linear simulation is performed to obtain the baseline deformation and baseline stress responses. Then the uncertainty and random variation due to the geometry, material and shape variable is defined by a normal distribution function. Random designs are generated by defining the upper and lower bound limit values for the input design variable. Random designs are populated using Monte-Carlo simulation technique. 250 random design points are created for each design variables. Then stochastic simulation is performed to evaluate the responses at random design points. Statistical and probabilistic tools are used to post process the simulation results. The paper showcases application of stochastic simulation method which aids in indentifying the robust design with minimum variations. This also enables engineers and designers to understand the relationship and significance between different design variables in designing energy efficient systems.
Computational Analysis of Hybrid Composite Material for Wing Frontal Spar
Authors: Dinesh M. , Asokan R. , Rubanrajasekar B. , Vignesh S. , Rajesh S.
Published: December 2020

The fast growth of composite materials in the aerospace industry is due to its desired properties over conventional metals. In this paper, a detailed static structural analysis and vibrational analysis was carried out for the aircraft wing frontal spar using hybrid material and it was compared with different conventional materials used in aerospace industry like aluminium, CFRP (Carbon Fiber Reinforced Polymer). The carbon fiber and flax fiber were selected for composition in hybrid composite material since it shows an exceptional specific mechanical properties and good vibration damping properties. The frontal wing spar was designed using modelling software CATIA V5. Static structural analysis and modal analysis was performed using ANSYS software. Exploring the results of structural analysis, it was interpreted that the static structural efficiency of the hybrid composite material was exceptionally high compared to aluminium and it shows nearly equal specific mechanical properties compared to CFRP. This leads to reduction in cost of the structure. From the modal analysis the various natural frequencies for six modes are discussed. The analysis shows natural frequency of wing frontal spar using hybrid composite material exhibits similar deformation compared to CFRP. Hybrid composite material exhibits higher damping factor when compared to chosen materials. This behaviour of hybrid composite material shows that it could be effectively replaced in wing frontal spar instead of conventional materials like CFRP and aluminium.
Computational Analysis of Co-Flow Potential Core Degradation of a Chevron Nozzle
Authors: Kavitha G. , Pal Yash , Xavier D. Dominic , Elumalai E.S.
Published: December 2020

In this paper, the characteristics of co-flowing jet in circular and chevron nozzle was studied. Three-dimensional chevron nozzle was designed with the saw tooth pattern to reduce the exhaust noise and infrared signature. Co-flow analysis of the nozzles was carried out using ANSYS CFX software. The jet performance of chevron nozzle was compared with that of a circular nozzle. The potential core decay length of co-flow circular and chevron nozzle was studied at two different Mach number of 0.6 and 1. The results shown that the potential core decay reduced for co-flow chevron nozzle along axial and radial directions.
Fatigue Crack Growth Prediction under Spectrum Load in an Aluminium Alloy using Crack Driving Force K*eff Approach
Authors: Kamath B. Shailesh , Anilchandra A.R. , Sivaranjani T. , Narayana K. Badari , Manjunath C.M.
Published: December 2020

Fatigue Crack Growth (FCG) behaviour in a Single-Edge-Notched Tension (SENT) specimen of 2024-T3 aluminium alloy under a standard mini-FALSTAFF spectrum load sequence was experimentally determined. Further, the FCG behaviour was predicted using cycle-by-cycle method and compared with experimental results. Prediction procedure involved are rain-flow counting of fatigue load cycles, estimation of crack driving force for each of the counted cycle and prediction of crack extension per cycle from constant amplitude crack growth rate equation. In the present work, a new crack driving force (CDF) K*eff involving Kujawskiâ€™s crack driving force K* in conjunction with Elberâ€™s crack closure concept was used to account for load interaction effects. FCG prediction was also made using conventional CDF Î”Keff (Elberâ€™s) approach. A good correlation was observed between experimental and predicted FCG behaviour under spectrum loads by the proposed K*eff approach. Also, this prediction was observed to be better than that predicted by conventional Î”Keff approach.
Reduction of Carbon-Monoxide Content from Four Stroke Petrol Engine by using Subsystem
Authors: Godwin Antony A. , Radhakrishnan K. , Saravanan K. , Vijayan V.
Published: December 2020

A method for removing carbon monoxide from exhaust gas of a petrol engine through catalytic reduction by the use of catalyst in presence of cuprous aluminium oxide is performed. This method feeds cuprous oxide into exhaust gas proportionately to the product of revolution number of petrol engine. The catalytic performance of cuprous aluminium
oxide catalyst for carbon monoxide hydro generation and addition of promoter cuprous aluminium results in slide modification silencer. Many methods are used to control the emission rate but it is not getting reduced and for efficient benefits we are using a mechanical device called emission sub system. A lit was created mainly to reduce CO from the exhaust of the vehicle. It reduces the physical effects and global warming. To meet the emission standard bs6 CO emission may reduce the effect of toxic content present in the exhaust.
SmartCOdetect: An Automated Car Window Opening System on Detection of Carbon Monoxide
Authors: Batra Neera , Kaur Jasleen , Batra N.K.
Published: December 2020

Motorized vehicles are the most important means of transport in which the vehicles with air conditioners play an important role. The number of unexpected death incidents as a result of enormous intake of carbon monoxide (CO) has currently increased. This paper focuses on the design and development of SmartCOdetect - an arduino based intelligent embedded device for a vehicle cabin that detects CO gas and displays it on the LCD screen. If the CO measure surpasses the specific threshold limit, an alarm automatically rings and, if necessary, the window for ventilation is activated immediately. A notification via GSM is sent to the ownerâ€™s number registered with the SmartCOdetect system and after receiving the response from the owner, the control unit sends the signal immediately to the control circuit of the vehicle's window to provide ventilation. It also provides the safety and assistance to an occupant in the car cabin. The advantage of this automated CO detection system compared to the manual method is that it provides fast response time and accurate detection of an emergency situation. The system is evaluated by different categories of users to gather the information about the level of satisfaction with SmartCOdetect.
Performance, Emission Characteristics of Dual Fuel Engine Fuelled with Brown Briquette Biomass and Rice bran Oil Biodiesel
Authors: Nataraja K.M. , Banapurmath N.R. , Yaliwal V.S. , Mathad Nandish
Published: December 2020

In this work agricultural waste-based coconut biomass and compressed agricultural waste derived from brown briquette were used for generation of gas in a downdraft gasifier. Its subsequent combustion takes place in a modified diesel engine using rice bran oil (RiOME) biodiesel injected in bi-fuel mode. For the injected pilot fuel, producer gas operation with coconut biomass derived fuel has improved liquid fuel saving. Downdraft gasifier was integrated with four stroke DI water cooled 5.2 kW CI engine at 1500 rpm speed. Experimentation results showed that for the gasifierengine system coconut biomass derived gas with diesel based dual fuel operation results in 9.05% higher BTE. RiOME producer gas (CNS) operation showed 16.1% decrease in EGT and 12.1% reduction in NOx emission compared to diesel based dual fuel operation. NOx emissions for the RiOME based engine operation were found to be lower than the diesel based operation. However, the smoke, HC and CO emissions were higher. Diesel fuel saving about 56% was achieved by diesel and producer gas (CNS) dual fuel operation and 100% biofuel utilization in RiOME -producer gas bi-fuel mode of operation was achieved. Further, heat release rates and cylinder pressure for RiOME producer gas (CNS) was marginally lesser than diesel operation.
Analysis of Carbon Nano Tubes using Molecular Structural Mechanics Approach
Authors: Jayapriya J. , Muruganandam D , Senthil Kumar B.
Published: December 2020

Carbon Nano Tubes (CNTs) have a nanostructure with length-to-diameter ratio greater than 1,000,000 exhibiting unusually high toughness and elastic-moduli. Youngâ€™s modulus of a single-walled CNT is estimated through Molecular Structural Mechanics Approach is being simulated as a frame-like-structure where primary bonds between successive atoms forms a beam. Properties for FE model are calculated from energy equivalence between molecular and structural mechanics. By validation, computed results match well with the literature. Finite element models such as armchair and zig-zag are established and Youngâ€™s-moduli are effectively predicted.
Combined Multi-Body-System and Finite Element Analysis of a Rail Locomotive Crashworthiness
Authors: Sharma Sunil Kumar , Sharma Rakesh Chandmal , Sharma Neeraj
Published: December 2020

The modelling and simulation of a passenger rail vehicle locomotive for its crashworthiness are carried out in this paper. It is carried out as an application of combined FEM and MBS analysis using MADYMO. In some parts, the locomotive is modelled as super elements, principal parts are modelled as finite elements and joints are taken as flexible elements considering all external forces along with boundary conditions. The crashworthiness has been determined by striking the locomotive on to a fixed barrier. The simulation results of MFBD model at 25 kmph is benchmarked to the EN 15227 for validation of this technique. Once the model is validated, it is used for the locomotive crash analysis of crashworthiness behaviour at a different impact speed of 100 kmph, 160 kmph, and 225 kmph. Local buckling is observed at multiple points that restrict locomotive continuous damage characteristics. The results predict an increase in the speed of impact, more plastic deformation for the locomotive frontal part. The peak deformation is nearly 8.23 m observed at 224 kmph velocity.
Effect of Heat Treatment and Cryotreatment on the Fatigue Crack Growth in Aluminium 7075 Alloy
Authors: Arunakumara P.C. , Venkatesh D. , Phaneesh K.R.
Published: December 2020

Al 7075 is an aluminium alloy with zinc as major element. Al 7075 is commonly used in aircraft components, especially for critical parts like wing and fuselage components. In present investigation Al 7075 has been selected subjected to annealing, cryogenic treatment and the combination of annealing and cryogenic treatment for the study of fatigue crack growth subjected to fatigue load at constant amplitude. Specimens were subjected to fatigue crack growth as per ASTM E-647 standards and the results of fatigue crack growth were compared. NASGRO software was used to predict the fatigue crack growth (FCG) and the results are validated using experimental results. Microstructure analysis of metallic specimens was also carried out to study the micro structural changes in specimens undergoing heat treatment and cryotreatment. From the present investigation it has been observed that cryogenic treatment and heat treatments plays vital role in improving fatigue life of Al 7075 components.
Jet Noise Reduction in Co-Flowing Jets with Finite Lip Thickness
Authors: Kevin Bennett S. , Naren Shankar R.
Published: December 2020

Passive control for suppressing mixing noise from Co-Flowing Jets (CFJ) is presented in this study. The idea behind this is to reduce the convective Mach number of turbulent eddies that produce intense sound radiation. The present study analyses co-flowing jets with a bypass ratio of 6.3 and the primary nozzle lip thickness of 10 mm. The aim of the study is to find the jet noise level in finite lip thickness in co-flowing jets. CFJ with finite lip thickness forms a recirculation zone (in the near field). The secondary core and recirculation zone are shielding the primary core by reducing the jet noise. A single free jet with a diameter equal to that of a primary nozzle of co-flowing jet is also studied for comparison. The results show that co-flow jet with finite lip thickness of 10mm for various emission angles and the Overall Sound Pressure Level (OASPL) level gets reduced when compared with the single free jet.
Influence of IOP, IT and Nozzle Geometry on the Performance and Emission Characteristics of DI Diesel Engine Running on ROME
Authors: Varun Kumar Reddy N. , Sangashetty S.G. , Banapurmath N.R.
Published: December 2020

In the view to maintain ecological balance, downtrend in availability of petroleum-based fuels and stringent pollution norms have triggered to search for an alternate fuel for internal combustion engines. Present work is to study the influence of IT (Injection Timing), IOP (Injector opening pressure) and number of holes in nozzle on the performance and emission characteristics of diesel engine fueled by Rice bran Oil Methyl Esters (ROME) is reported. For a 5-hole nozzle, IOP at 240 bar obtained the highest brake power of about 28%. Gradual upturn of peak pressure was observed when the IOP was varied from 210 bar to 240 bar.
Aerodynamic Analysis of a Popular Automobile Model with Various Add-On Devices using Computational Fluid Dynamics
Authors: Thiruchitrambalam M. , Logesh M. , Shanmugam D. , Prabhahar M. , Prakash S.
Published: December 2020

This project involves analyzing the aerodynamic parameters of the vehicle and proposing the necessary changes in design to obtain better fuel economy and speed. The original, popular model was modified by the addition of spoilers, front splitters, vortex generators, diffusers, side skirts and front air dams. The popular model and the modified model are compared with respect to velocity contour, velocity streamline contour, velocity vector. It has been found that for the modified model the drag co-efficient can be reduced by 34 % and the downward force can be reduced by 19 %.
Constitutional Development and Political (in) stability of Pakistan: An Analysis Since Inception of Pakistan till 2018
Authors: Amir Shamaila , Ahmad Fayyaz
Published: December 2020

The paper attempts to study constitutional development in Pakistan in relation to the political instability or stability of the country. Analysis of the secondary data qualitatively revealed that the country suffered much due to political instability which was a result of the non-development and non-availability of the constitution. As the constitution provides a set of rules for people of a state who agree to live together and it is the basic set of principles through which a state is governed, the newly established state of Pakistan initially adopted the 1935 India Act to run the affairs. The process to frame a fresh constitution started after the transitory of Objectives Resolution in 1949 while Islamic and democratic values were considered as foundations to formulate a constitution for Pakistan. Three constitutions in 1956, 1962, and 1973 were framed in order to maintain political stability and to govern the state. Pakistan in its 72 years of age was governed by 49 Heads of State or Heads of Department including five military dictators (Naz, 2019). Only during the early eleven years, twelve Heads of State or Heads of Departments administered the oath to run the government. Two Prime Ministers were assassinated and one was hanged while two sitting Prime Ministers were declared disqualified by the court. East Pakistan was separated due to political instability and eight times constitutional assemblies were dissolved (Obaidullah, 2020). Several times, the Constitutions were abrogated or suspended and federalism was lacking in the country that also resulted in political instability. It is only since the last decade, political stability is emerging due to prevailing, implementing, development, and intactness of the Constitution.
Equity Issue in Pakistan: A Study on Higher Education
Authors: Naich Moula Bux , Junejo Naeem Ahmed , Lashari Akhtar Hussain , Lashari Akhtar Hussain , Shah Muhabat Ali
Published: December 2020

This study has examined the equity issue in higher education in Pakistan that boys and girls have treated based on equitable access to education. While the social status of female students is very diverse in higher education than males. If compared with around the world, the current educational status of women has increased in the different fields on the bases of equity. Because women play a vital role in the growth of the economy by the dint of their professional skills. However, the role of women in Pakistan is different from around the world.  If the compared relationship between urban and rural female students or women in Pakistan that women still face difficulties in several areas. Such as field engineering and math teaching as well as a public place. Therefore, this study aimed to explore the equity issue in already published literature by taking into account higher education in Pakistan. To, different studies’ findings have shown that there are many problems present in the educational system of Pakistan, such as a policy implementation with an international perspective, curriculum standards, and the use of technology in education. However, equity is also a core issue in higher education, which impact on female students. In this regard, those female students cannot reward easily their fundamental rights. Because of restrictions and some, important factors have linked to equity barriers. This study has used different sources of methods and materials through Google Scholar, Research Gate, and an Elsevier journal. Finally, significant results have described in this study by the dint of discussion and conclusion, which have drawn in the light of previously published literature.
https://doi.org/10.46409/sr.FIKZ6752
Authors:   , Hovland Jessica
Published: December 2020

The opioid crisis continues to be a public health concern. Traditionally, an opioid-centric approach treats postoperative pain. The following PICOT question guided this project: Will initiating a multimodal analgesic virtual reality quality improvement program (I) compared to current practice (C) decrease opioid requirements (O) in robotic hysterectomy patients (P) during the postoperative period (T)? Several articles promote non-opioid analgesia and non-pharmacological interventions, such as multimodal analgesia and virtual reality (VR) for pain management. This project reviewed pre- and post-implementation data after implementing new evidence-based multimodal analgesia and VR protocols. The project captured a total of 64 patients in the pre-implementation group. A total of 22 patients received both multimodal analgesia and VR in the post-implementation group. There was no statistically significant difference in total opioid consumption converted as morphine milligram equivalents (MME) between the pre-implementation and post-implementation groups. However, there was a statistically significant difference in multimodal analgesia administered in Pre-op between the pre-implementation and post-implementation groups. In conclusion, the execution of the multimodal analgesic VR program allowed for nursing adoption of novel evidence-based practices (EBP) and promoted the use of non-opioid and non-pharmacological interventions. Although the combination of multimodal analgesia and VR did not reduce opioid consumption, the practice of incorporating multimodal analgesia as a standard workflow improved.
An Ontology Approach to Data Integration using
Mapping Method
Authors: Dr.A.Mekala
Published: December 2020

Text mining is a technique to discover meaningful patterns from the available text documents. The pattern
sighting from the text and document association of document is a well-known problem in data mining.
Analysis of text content and categorization of the documents is a composite task of data mining. Some of them
are supervised and some of them unsupervised manner of document compilation. The term “Federated
Databases” refers to the in sequence integration of distributed, autonomous and heterogeneous databases.
Nevertheless, a federation can also include information systems, not only databases. At integrating data, more
than a few issues must be addressed. Here, we focus on the trouble of heterogeneity, more specifically on
semantic heterogeneity – that is, problems correlated to semantically equivalent concepts or semantically
related/unrelated concepts. In categorize to address this problem; we apply the idea of ontologies as a tool for
data integration. In this paper, we make clear this concept and we briefly explain a technique for constructing
ontology by using a hybrid ontology approach.
An ETL Pipeline for Disaster Response
Authors: Harsh Goyal and Varun Goel
Published: December 2020

Natural disasters such as floods, forest fires, and hurricanes can cause catastrophic damage to human life
and infrastructure. We focus on response to hurricanes caused by both river water lodging and storm surge.
Using models for storm surge simulation and flood extent prediction, we generate forecasts about areas likely
to be highly affected by the disaster. Further, we overlay the simulation results with information about tragic
incidents to correlate tragic incidents with other data modality. We present these results in a modularized,
interactive map-based visualization, which can help emergency responders to better plan and coordinate
disaster response.
A Review on Anthocyanin Pigments with respect to
its Nutraceutical Properties
Authors: Shairee Ganguly and Dolanchapa Sikdar Srijeeta Saha
Published: December 2020

Anthocyanin pigments are readily degraded during processing and storage of foodstuffs that can have a
dramatic impact on color quality and may also affect the nutritional properties. Total anthocyanin pigment
content and indices for polymeric color and browning are easily measured with simple spectrophotometric
methods. Once individual pigments are identified, their changes can be monitored by high-performance liquid
chromatography (HPLC). The edible fruits of 12 plants were extracted in methanol and subjected to
solvent–solvent partitioning to yield three fractions, hexane, ethyl acetate, and aqueous. A number of factors
affecting anthocyanin stability and color are discussed in this review. Anthocyanins are probably the most
spectacular of plant pigments since they are responsible for most of the red, purple and blue pigmentation of
flowers, hits and vegetables. However, because of their highly reactive nature, anthocyanins readily
degrade, or react with other constituents in the media, to form colorless or brown colored compounds. The
presence of an oxonium ion adjacent to carbon 2 makes the anthocyanins particularly susceptible to
nucleophilic attack by such compounds as sulfur dioxide, ascorbic acid, hydrogen peroxide and even water.
Loss of anthocyanin pigmentation also occurs in the presence of oxygen and various enzymes, and as a
result of high temperature processing. Certain degree of pigment stabilization may be conferred by acylation
with various organic acids, co pigmentation, self-association and/or metal chelation. In addition, pH has a
marked effect on anthocyanin stability, and on the color of media containing these pigments. A number of
anthocyanin-rich sources have been investigated for their potential as commercial pigment extracts. Although
their application is primarily limited to acidic media, continued research on the chemistry of anthocyanins
may lead to application and stabilization of these pigments in a wider variety of food products.
Bees Assorter
Authors: Himanshu Verma
Published: December 2020

Many attempts were made to classify the bees that is bumble bee or honey bee , there have been such a
large amount of researches which were made to seek out the difference between them on the premise of
various features like wing size , size of bee , color, life cycle and many more. But altogether the analysis there
have been either that specialize in qualitative or quantitative , but to beat this issue , thus researchers came
up with an answer which might be both qualitative and quantitative analysis made to classify them. And
making use of machine learning algorithm to classify them gives a lift . Now the classification would take less
time as these algorithms are pretty fast and accurate . By using machine learning work is made easy . Lots of
photographs had to be collected and stored for data set. And by using these machine learning algorithms we
would be getting information about the bees which might be employed by researchers in further classification
of bees. Manipulation of images had to be done so as on prepare them in such a way that they will be applied
to the algorithms and have feature extraction done. As there have been a lot of photographs(data set) which
take a lot of space and also the area in which bees were present in these photographs were too small so to
accommodate it dimension reduction was done , it might not consider other images like trees , leaves ,
flowers which were there present in the photograph which we elect as a data set.
Mobility Assistive Device for the Visually Impaired
Authors: Puru Malhotra and Vinay Kumar Saini
Published: December 2020

he paper is aimed at the design of a mobility assistive device to help the visually impaired. The traditional
use of a walking stick proposes its own drawbacks and limitations. Our research is motivated by the inability
of the visually impaired people to ambulate and we have made an attempt to restore their independence and
reduce the trouble of carrying a stick around. We offer a hands-free wearable glass which finds it utility in
real-time navigation. The design of the smart glasses includes the integration of various sensors with
raspberry pi. The paper presents a detailed account of the various components and the structural design of
the glasses. The novelty of our work lies in providing a complete pipeline for analysis of surroundings in
real-time and hence a better solution for navigating during the day to day activities using audio instructions
as output.
A Comparative Study of Driver Fatigue Detection
Systems
Authors: Dr. Bhoomi Gupta and Vandana Choudhary Sagrika Chandra, Manav Gupta
Published: December 2020

Driver fatigue also known as driver drowsiness is caused by various factors, which can impair and hinder
safe driving, including biological, physical, psychological, and other various factors. Accidents through driver
fatigue are observed especially in the case where journeys are long-distance, and sleep-deprivation also
plays the role of a prominent determining parameter.
There is an extensive number of accidents caused by driver fatigue and these are of major safety concern;
hence it is of critical importance to come up with some mechanism that can combat and prevent such road
accidents to save precious lives. Thanks to technological advancements we can deploy systems that can
detect driver fatigue and drowsiness. In this paper, we would be reviewing the various techniques that can
be used to implement a system for the detection of driver fatigue.
Video Analytics Solution for COVID-19
Authors: Dr. Bhoomi Gupta and Vandana Choudhary Prerna Gupta
Published: December 2020

Amid the global crisis of the Corona virus pandemic, new demands have emerged in the market which uses
Video Analytics for finding solutions to halt the transmission of the Virus. The COVID - 19 pandemic is
devastating mankind irrespective of caste, creed, gender, and religion. Until a vaccine is discovered, we
should do our bit to constrain the expanse of the corona virus. Using a face mask can undoubtedly help in
managing the spread of the virus. The face mask detector, a video analytic solution uses MobileNetV2 model,
deep learning techniques to successfully test whether a person is wearing a face mask or not. The face mask
identifier is least complex in structure and gives quick results and hence can be used in CCTV footage to
detect whether a person is wearing a mask perfectly so that he does not pose any danger to others. Mass
screening is possible with video analytics and hence can be used in crowded places like Airports, Hospitals
Entrance Exam Centers, Schools and Colleges.
Análisis comparativo de indicadores de capacidad multivariante. El caso del clúster manufacturero cartagenero
Authors: Rahmer Bruno de Jesús , Hernando Garzón Saénz , José Solana Garzón
Published: December 2020

Los indicadores multivariantes de capacidad han sido muy utilizados en la industria manufacturera y en entornos similares en tanto que proporcionan medidas cuantitativas sobre el potencial y rendimiento de un proceso descrito por múltiples características de calidad susceptibles de evaluación y correlacionadas simultáneamente. En este artículo se presenta una evaluación empírica de múltiples enfoques de análisis de capacidad multivariante en el sector manufacturero cartagenero, a saber: uno basado en la relación del volumen la región de tolerancia y el volumen de la región del proceso, otro fundamentado en el análisis de componentes principales y adicionalmente, se propone la aplicación de otros indicadores que incluyen dentro su mecánica interna de análisis factorial la proporción de observaciones fuera de los márgenes de especificación y su variabilidad en el largo y corto plazo. Los resultados suministrados indican que el proceso productivo analizado no es marginalmente capaz para cumplir con las especificaciones técnicas predefinidas y que existe un vasto margen de mejoría.
Análisis de los factores de competitividad para la productividad sostenible de las PYMES en Trujillo (Perú)
Authors: Benites Gutierrez Luis Alberto , Ruff Escobar Claudio , Ruiz Toledo Marcelo , Matheu Pérez Alexis , Inca Alayo Martín , Juica Martínez Paola
Published: December 2020

Los niveles de competitividad de los países de Latinoamérica se encuentran en un proceso de desarrollo lento para alcanzar a empresas situadas en economías más modernas, por tener dificultades en algunos pilares fundamentales de competitividad como los niveles de innovación tecnológica en base a inversiones inteligentes de infraestructura, capital intelectual, que tengan un impacto importante en la productividad multifactorial. El objetivo de esta investigación fue analizar la situación competitiva de las Pequeñas y Medianas Empresas (PYMES) en la ciudad de Trujillo, evaluando los factores claves para la productividad que tendrán una asociación con la competitividad sostenible. Se realizó un estudio empírico aplicado a 152 empresarios en diversos sectores de la ciudad de Trujillo, recopilando información de tipo cualitativo y cuantitativo. Los resultados obtenidos fueron que el 70% de las empresas del sector calzado están preparados para responder a las cinco fuerzas competitivas de Porter, para el sector metal mecánica el 89% de las empresas, y el 70% de las empresas para textil son competitivas. Se identificó que la calidad, capital humano, finanzas, plan estratégico, comercialización y las alianzas estratégicas, tienen una relación positiva con la competitividad; sin embargo, al integrarse con las TICs no se aprecia la sinergia del negocio. Los hallazgos son de utilidad para mejorar el conocimiento en las decisiones estratégicas de los Gerentes de las PYMES para responder a la Globalización y al proceso intensivo de la digitalización.
Análisis empírico de correlación entre el indicador de estructura de capital y el indicador de margen de utilidad neta en PYMEs
Authors: Barrera Lievano Jhony Alexander , Parada Fonseca Sandra Patricia , Serrano Serrato Leidy Viviana
Published: December 2020

La presente investigación aborda los resultados financieros del año 2.017 de 2.622 empresas de una ciudad capital de América latina con los cuales se calculan los indicadores financieros de Estructura de capital y Margen de utilidad neta. Se plantea como objetivo central determinar si existe o no una relación directa y significativa entre los indicadores financieros mencionados a través del cálculo del coeficiente de correlación de Pearson. Se aplica una metodología cuantitativa, de tipo explicativa, que procura identificar patrones en los resultados financieros analizados que den luz de la existencia de una estructura de capital general óptima (relación entre el pasivo y el patrimonio). Como conclusión general se obtiene que, con los datos analizados, no se evidencia que exista una relación directa y significativa entre los indicadores trabajados. Queda como futuros temas de investigación realizar el mismo proceso, pero por sectores económicos y/o por tamaño de empresa.
Factores determinantes en la adopción de crédito de proveedores de las pequeñas empresas manufactureras del Ecuador y su efecto en el incremento de su producción
Authors: García Regalado Jorge Osiris , Zavala Vinces Jorge , Sánchez Giler Sunny
Published: December 2020

En Ecuador el crédito comercial actúa como fuente de financiación entre las pequeñas empresas, sin embargo, existe evidencia acerca del bajo acceso y uso de este tipo de crédito por parte de las pertenecientes al sector de manufacturas, además de que provoca un efecto positivo en la producción de las mismas.

El presente trabajo revisa datos secundarios de fuentes oficiales analizando la evolución de la relación entre la producción, medida por sus ventas, y las cuentas por pagar a proveedores e instituciones financieras (2007-2017) de las pequeñas empresas manufactureras ecuatorianas. Se observó que existe una relación directa-positiva de los ingresos y el uso del crédito de proveedores. A través de una modelación econométrica que postula una extensión a la función de producción Cobb-Douglas de carácter modificada, se consideró como argumento adicional la variable “S” crédito de proveedores.

Mediante entrevistas en profundidad a gerentes de pequeñas empresas, se exploraron los factores que determinan el uso de crédito de proveedores como alternativa de financiamiento. De esta manera se pudo caracterizar el crédito comercial acorde con la facilidad de obtención, orígenes, fidelidad, mecanismo de pago, que son aspectos que influyen en la decisión del volumen del crédito y el plazo a convenir para tal operación. Así mismo se pudo evidenciar las limitaciones que los empresarios tienen para el acceso hacia el crédito bancario.
STRUCTURING AND STRENGTHENING OF CLAY SOILS UNDER PRESSURE CEMENTATION
Authors:   Don State Technical University, DOLZHIKOV P.N. , PSUK M.U. ,   Donbass State Technical University
Published: December 2020

Structuring processes in clay soils after their cementation have been considered. A new indicator of soil cementation is proposed, by which it is possible to evaluate the deformation and strength properties of soils depending on the volume of injected cement.
THIN-LAYER SETTLING IN MODERN WATER TREATMENT TECHNOLOGIES
Authors:   Tula State University, KOVALEV R.A. , KORNEEVA N.N. ,   Tula State University, SALNIKOV B.F. ,   Tula State University, LIFANOV D.O. ,   LLC «NPFETEKLTD»
Published: December 2020

The use of polymer modules in the technological scheme can significantly intensify the process of precipitation and separation of mechanical and colloidal impurities from water by increasing the contact surface, increasing the lightening effect, and reducing the settling time. Also, in the process of cleaning, smaller doses of reagents are required and the problem of not effectively organized coagulation process is solved.
INFLUENCING MICROCLIMATIC AIR PARAMETERS ON FASTENERS AND REINFORCEMENT ELEMENTS IN BARKS POTASSIUM MINING
Authors:   Joint-Stock Company “VNII Galurgii ”, TARASOV V.V. , PESTRIKOVA V.S. ,   Joint-Stock Company “VNII Galurgii ”, IVANOV O.V. ,   Joint-Stock Company “VNII Galurgii ”, CHISTYAKOV A.N. ,   Joint-Stock Company “VNII Galurgii ”
Published: December 2020

The problem of increased corrosion wear of castiron tubing and metal reinforcement of mine shafts is considered, which caused experimental work to study the microclimatic parameters of the air in the shafts of a potash mine during a calendar year. Based on the conducted studies, conclusions are drawn about the influence of microclimatic parameters of air on the tubing support and metal reinforcement in the active trunks of one of the enterprises of Verkhnekamye.
RESEARCHING REGULATIONS OF FIRE SULFIDE ORE AND BREED DURING COMBINED DEPOSIT DEVELOPMENT
Authors:   Institute of Comprehensive Exploitation of Mineral Resources RAS, RYLNIKOVA M.V. , AYNBINDER G.I. ,   Association of Mining Expertise Centers, MITISHOVA N.A. ,   Institute of Comprehensive Exploitation of Mineral Resources RAS, GADZHIEVA L.A. ,   Association of Mining Expertise Centers
Published: December 2020

Mineralogical and mineralogical-graphic analyzes of samples of the host and ore-bearing rocks of copper-zinc-pyrite deposits were carried out. The Program and the corresponding research methods offactors and patterns of development of the oxidation processes of sulfide ores and rocks have been developed and tested. The results of chemical-technological studies of sulfur-pyrite, copper-pyrite, copper-zinc ores, sericite-quartz rocks and metamorphosed tuffs are presented.
Visión criminológica del delito Online Grooming
Authors: Bragado Sobrino Alberto
Published: December 2020

La literatura científica identifica tres tipologías de individuos que perpetran el online grooming: hipersexualizados, adaptativos e íntimos. El presente estudio tiene como objetivo explorar el perfil del potencial delincuente que perpetra este delito y sus diferentes tipologías. Para ello, se comparó una muestra conjunta de 258 casos de grooming: por un lado, 243 son casos de online grooming en Estados Unidos y, por otro lado, 15 son casos de online grooming en España. Los resultados indican que el online grooming es perpetrado, mayoritariamente, por un hombre de entre veintiuno y treinta años de edad, motivado sexual o afectivamente. El efecto de la prolongación del tiempo entre el contacto y la proposición sexual en relación con las estrategias empleadas por los agresores, refleja los tipos diferenciados de groomers que se encuentran en este fenómeno: íntimos, adaptativos e hipersexualizados.
Policía predictiva en España. Aplicación y retos futuros.
Authors: González-Álvarez José Luis , Santos Hermoso Jorge , Camacho-Collados Miguel
Published: December 2020

Las decisiones en materia de políticas públicas deben estar basadas en el análisis riguroso de los datos efectuado a través de métodos y procedimientos científicos, para evitar tomar decisiones basadas en datos sesgados o creencias erróneas. El desarrollo de algoritmos y modelos predictivos aplicados al análisis del crimen, ha permitido la aparición de la policía predictiva, que analiza una gran cantidad de datos históricos de criminalidad para identificar patrones y estimar la probabilidad de que sucedan crímenes en el futuro, y para ayudar a esclarecer crímenes pasados. Esto ha hecho posible que desde los cuerpos policiales se potencie el enfoque preventivo frente al enfoque reactivo. A lo largo de este trabajo se expondrán algunas de las principales aplicaciones de la policía predictiva en España, y se analizarán en detalle los avances en los ámbitos de la Violencia de Género y el homicidio. El objetivo principal es resumir los principales estudios que se han desarrollado en los últimos años, destacar algunas de las limitaciones que puede tener la aplicación de este tipo de metodologías, y sobre todo señalar los beneficios que puede reportar la aplicación de modelos predictivos en la gestión de los recursos policiales.
Personalidad y Comportamiento no verbal.
Authors: Muñoz-Espinosa Verónica , Santos Hermoso Jorge
Published: December 2020

El objetivo de toda investigación criminal es obtener indicios suficientes para conseguir el esclarecimiento de los hechos. Las entrevistas que realizan los investigadores policiales, tanto a víctimas, como a testigos y sospechosos, son una de las principales fuentes de información de la que disponen. Tal es su importancia que se han desarrollado procedimientos específicos para la toma de declaración a víctimas, como puede ser la prueba preconstituida o la entrevista cognitiva, y lo mismo sucede con los sospechosos, para los que se han desarrollado procedimientos de interrogatorio como el REID y el PEACE. La entrevista y el interrogatorio deben entenderse como interacciones entre personas (entrevistador-entrevistado), por lo que el entrevistador policial debe crear la estrategia más efectiva en función de la persona que tiene delante. En este sentido es importante la perfilación indirecta y la relación entre personalidad y comportamiento no verbal (CNV), ya que ayudarán al entrevistador a saber qué tipo de persona (personalidad) tiene delante, sin tener que usar cuestionarios autoinformados, y evitando algunos de los problemas que plantea la evaluación de personalidad directa. Es por ello que el objetivo del presente trabajo es realizar un estudio piloto en el que se analice la relación entre personalidad, empleando el modelo PEN de Eysenck, y CNV en una muestra penitenciaria, formada por 20 casos de feminicidio. Conseguir perfilar de forma indirecta es solo una parte del proceso, ya que una vez perfilado el sujeto, habría que diseñar una estrategia de entrevista/interrogatorio en función de su personalidad.
Ortaokul Öğrencilerinin Fen Bilimleri Derslerinde Açık Havada Öğrenmeye Yönelik Tutumları: Ölçek Geliştirme Çalışması
Authors: TEPE Mustafa Enes , SARI Elif , OCAK İjlal
Published: December 2020

Bu çalışmanın amacı, ortaokul öğrencilerinin fen bilimleri derslerinde açık havada öğrenme yaklaşımının kullanımına yönelik tutumlarını belirlemeye ilişkin bir ölçek geliştirmektir. Ölçeğin geliştirilme sürecinde literatürde yer alan çalışmalar incelenmiştir. Daha sonra açık uçlu sorulardan oluşan görüşme formlarından elde edilen nitel veriler (n=100) sonucu ön deneme formu oluşturulmuştur. Bu ön deneme formu uzman görüşüne sunulmuştur. Uzman önerileri doğrultusunda gerekli değişiklikler yapıldıktan sonra 65 maddeden oluşan deneme formu Ege Bölgesinde bir ilde öğrenim gören toplam 330 ortaokul öğrencisine uygulanmıştır. Ölçme aracının yapı geçerliğini test etmek amacıyla açımlayıcı faktör analizi yapılmıştır. Bu analizler sonucunda 4 faktörlü (ilgi, değerlendirme, kazanım ve kaçınma) toplam varyansın %54,59’unu açıklayan 22 maddeden oluşan ölçek elde edilmiştir. Maddelere ait faktör yükleri ,808 ile ,501 aralığında yer almaktadır. Ölçeğin madde analizi çalışmalarında madde-toplam korelasyonlarına ve ayırt ediciliklerine bakılırken, güvenirlik çalışmalarında Cronbach Alpha katsayısı ve doğrulayıcı faktör analizi sonucu elde edilen uyum değerlerine bakılmıştır. Ölçeğin geneline ait Cronbach Alpha güvenirlik katsayısı 0,839 olarak hesaplanmıştır. Çalışmanın son bölümünde doğrulayıcı faktör analizi sonuçlarına yer verilmiştir. Elde edilen sonuçlar ölçeğin geçerli ve güvenilir olduğunu kanıtlar niteliktedir.