bluuebunny/crossref_metadata_2025 huggingface dataset:
A Escada Educacional do Design Thinking no Brasil: revisão sistemática nos Anais do P&D
Authors: Arakaki Marina , Abreu Ana Cláudia de , Neto Mariano Lopes de Andrade
Published: January 2020

O termo design thinking tem sido discutido e estudado desde 1992 como uma metodologia para resolução de problemas, passando por diferentes formas de abordagem e procedimentos ao longo dos anos. Esses processos foram sistematizados na escada dinamarquesa do design, desenvolvida pelo Danish Design Centre, em 2001. Inspirado nesse modelo, foi desenvolvido em 2017, a Escada Educacional do Design, que ilustra os estágios pedagógicos no desenvolvimento do design thinking. Dessa forma, o objetivo deste estudo é investigar os níveis de aplicação do design thinking, de acordo com a Escada Educacional do Design, nos Anais do Congresso Brasileiro de Pesquisa e Desenvolvimento em Design (P&D), buscando configurar sua representatividade no mesmo. Como resultado, obteve-se a visualização dos níveis trabalhados da Escada Educacional do Design nesses anais, além de um panorama da disciplina no congresso e a identificação de lacunas para novas pesquisas serem realizadas.
The treatment of osteonecrosis of the jaws in patients with dependence on “self-made dezomorphine»
Authors: Nesterov A.A. , Yakhyaeva E.R. , Tulaeva E.V.
Published: January 2020

The article is devoted to the influence of «self-made dezomorhine» on pyo-inflammatory disease of maxillofacial area. This project is topical in Russian Federation, because the quantity of drug addicts grows every year. Maxillofacial area is a high risk zone for development of inflammatory process due to the high probability of the chronic odontogenic center of infection and because of special aspects of blood supply and innervation of this area. Special attention must be payed to the jaws osteonecrosis of the jaws, which develop after «self-made dezomorhine» ingestion. Dezomorhine is a narcotic analgesic, which is banned in Russian Federation. From 2008 to 2014 there was conducted the treatment of 84 patients from age19 to 55 years of both sexes with local and diffuse osteonecrosis of the jaws, which began after «self-made dezomorhine» in department of maxillofacial surgery of Astrakhan Aleksandro-Mariinskaya Regional Clinic Hospital, 2 patients of the whole number of operated patients died because of the overdose of drugs, and 1 patient died due to the septic accident during the period of monitoring. It was found that as a result of retrospective analysis post evaluation procedures make it possible to affirm, that if the operation was performed in the course of 6 months after the intermission of taking drugs, the necrotic process usually extends to nearby areas of the jaws after the implementing of the necroectomy. The best results of the treatment were achieved when patients applied for hospital treatment after 6 to 12 months following the intermission of taking of «self-made dezomorphine». The article deals with 2 medical cases, illustrated by X-Ray pictures and clinic photos. 205 operations were performed by the 6 years’ experience of the treatment of 84 patients with «dezomorphinic» osteonecrosis of the jaws and it enables us make a conclusion, that classic surgeon treatment is the most preferable variant. The classic treatment includes surgery after the appearance of demarcation zone and sequesters organization. The detoxication therapy, immune-enhancing therapy, anemia treatment and usage of antibiotics are the important parts of the treatment, as well as the antibiotic use. Provided the specific microflora and typical status of immune system phenomenon occurred in the process of complex treatment of «dezomorphinic» necrosis of the jaws, we, applied a course of semisynthetic macrolides. We mostly applied Roxithromycinum in a dose of 150 mg in tab. 2 b.d.s. with the interval of 12 hours; period of treatment lasts 5 days. Rational antibiotic treatment allows to prognosticate a successful result of the treatment of «dezomorphinic» osteonecrosis of the jaws.
CASARSE ENTRE PRIMOS: MATRIMONIOS DE CONVENIENCIA Y CONSANGUINIDAD EN LA ESPAÑA RURAL DURANTE LA ÉPOCA MODERNA (SS.XVII-XVIII).
Authors: Pulido Raquel Tovar
Published: January 2020

A través de las partidas matrimoniales y las dispensas eclesiásticas, que se encuentran recogidas en los libros sacramentales de la Diócesis de Ávila, hemos procedido al análisis de los matrimonios celebrados en los pueblos de Mombeltrán y Cebreros en el periodo comprendido entre 1690 y1790, si bien nos hemos centrado en la presencia de enlaces consanguíneos en matrimonios en segundas nupcias. Su estudio es interesante porque contribuye a enriquecer la historiografía sobre consanguinidad en las áreas interiores de la Península Ibérica. Se analiza la concesión de dispensas matrimoniales por parte de la Iglesia católica para la celebración de enlaces consanguíneos, afines y de parentesco doblado entre solteros y entre viudos que habitan en comunidades rurales.
PURGA POLÍTICA DE ACTIVISTAS EN (Y POR) EL ESTADO ARGENTINO (1973-1983)
Authors: D'Antonio Débora Carina
Published: January 2020

El artículo examina la legislación que el Estado argentino aplicó sobre un sector de la clase trabajadora empleada en reparticiones y empresas públicas a fin de “depurarla” ideológicamente. Las leyes de prescindibilidad de los años 1973 y 1976 y las de seguridad nacional de los años 1974 y 1976, que derivaron en cesantías, bajas, despidos o renuncias forzadas ofrecieron el encuadre legal y la legitimidad necesaria para llevar adelante ese control y persecución. Se propone en este texto un análisis centrado en la utilización que hicieron de estas normativas distintos regímenes constitucionales y de facto. Si en los años de gobierno peronista (1973-1976) la expulsión se destinó a quienes mostrasen un alto grado de autonomía política y sindical, como el caso testigo que se indaga de las Industrias Mecánicas del Estado (IME); a partir de la etapa de última dictadura militar (1976-1983), esto se combinó fuertemente con la coacción física, al punto de convertirse en antesala de la desaparición forzada de numerosos activistas.
VINCULACIONES AFECTIVAS CON LOS BIENES DE LAS COFRADÍAS
Authors: Cordero-Fernández Macarena
Published: January 2020

Este artículo analiza cómo los objetos e imágenes ―registros― daban sentido material y afectivo a la existencia de una cofradía; cómo se producían los vínculos entre los asociados a través de las imágenes y bienes que pertenecían a su corporación, y cómo estas relaciones simbólicas eran las que motivaban el resguardo y defensa de los bienes comunes. Para ello se analizan, a partir de listados de bienes de cofradías, las vinculaciones y producción que estas materialidades generan en las devociones de sus miembros, así como con sus sistemas de identidad grupal. Análisis que se enfoca desde la psicología social y la sociología para observar la afectividad y devoción desde una perspectiva que vaya más allá de la religión.
“LA LEY DE LA TIERRA EN OPOSICION AL ASFALTO” RELIGIOSIDAD POPULAR, CONTINUIDADES HISTÓRICAS Y MENTALIDADES RURALES ENTRE LOS POBLADORES DE LA VICTORIA 1957-1990
Authors: Garín Abarzúa Eduardo Marco
Published: January 2020

El presente artículo intenta acercarse hacia las religiosidades populares como expresión de continuidad histórica e identitaria de los pobladores de La Victoria en relación con su antiguo hábitat rural. La hipótesis de este artículo cuestiona la constitución de una identidad eminentemente urbana de los pobladores en sus intentos por incorporarse a la ciudad. En ese sentido y desde una perspectiva centrada en la “ética de la tierra” pretendemos asociar la religiosidad popular de los pobladores de la Victoria como una expresión cultural de “larga duración” altamente adherida al acervo identitario de estos actores sociales.
CONFLICTOS Y REPERTORIOS DE ORGANIZACIÓN DE LAS Y LOS REFUGIADOS CHILENOS EN BUENOS AIRES (1973-1983)
Authors: Casola Natalia
Published: January 2020

Este artículo describe y analiza las experiencias de las y los chilenos refugiados en las casas de refugio de la Capital Federal y Gran Buenos Aires bajo la órbita de la Comisión Argentina para los Refugiados (CAREF) entre 1973 y 1983. El punto de partida es la pregunta por los efectos del contexto represivo, para responder qué significaba estar refugiado en la Argentina durante el tercer gobierno peronista y de la dictadura militar. Asimismo, a partir de constatar que la condición de refugiados puso en juego nuevas dinámicas familiares y formas de convivencia basada en la comunidad, se analizan los conflictos así como los procesos de construcción de lazos solidarios y se demuestra que tuvieron diferente carnadura en varones y mujeres.
OPTIMISTIC PERSONALITY AS A DETERMINE FACTOR IN SOCIO-CULTURAL ADAPTATION OF EXPATRIATE ACADEMIC IN MALAYSIAN PUBLIC UNIVERSITIES
Authors: Othman Irma Wani
Published: January 2020

Personality is relatively defined as either conscious or subconscious appearance in the mind that is reflected by the actions of an individual. This qualitative research is based on a qualitative approach that conducts an in-depth interview method for 30 staff from four Malaysian public universities which are internationally recognized. The focus of this paper is to examine expatriates’ adaptability to the needs of the host country by specifically referring to optimistic personalities and proactive attitudes as determinants of the success of an international assignment. The personality traits discussed include respecting cultural differences, being friendly to the local community, always being humble and open minded, showing flexibility in social relationships, showing interest and increasing the desire to learn something new, have the passion and excitement to explore and travel, positive about the diversity of local customs and mindset of the local people, and is tolerant in every aspect that benefits everyone. Based on the findings of the researchers, the identification of personality in influencing the process of socio-cultural adaptation goes beyond the influence of the experience, knowledge, skills and capabilities of an expatriate.
AGENDA SETTING BY THE MALAY ONLINE NEWSPAPERS DURING THE SEMENYIH BY-ELECTION
Authors: Mat Yakim Muhamad , Mohamed Shafizan , Abdul Manan Kamaruzzaman
Published: January 2020

Media can play an important role in the public's voting decision. In Malaysia, Facebook the one of the most popular social media used in political communication. In relation, this paper investigates whether online news shared on Facebook set the political agenda for its readers. The Semenyih by-election offered an interesting case to study this relationship. In response to the importance of social networking sites as sources of information, news media organizations have set up Facebook channels in which they publish news stories or links to articles. This allows for wider news reach as well as audience participation. When audience members read and subsequently comment on news articles on Facebook, it becomes possible to identify public opinions and sentiments on the issues being covered. Content analysis was done on 300 issues highlighted by two Malay online news Facebook pages namely Malaysiakini BM and Sinar Harian during the Semenyih by-election. A total of 691 user issues were sampled to investigate whether user issues mirror the issues and sentiments presented in the news articles. The descriptive findings showed that news sentiments and audience sentiments are almost similar but did not exactly match.
THE INTEGRATION OF DIGITAL FORENSICS SCIENCE AND ISLAMIC EVIDENCE LAWS
Authors: Kallil Mohamad Khairudin , Che Yaacob Ahmad
Published: January 2020

Evidence is anything that tends to prove or disprove a fact at issue in legal action. It involves the offering of alleged proof through testimony or objects at court proceedings to persuade the trier of fact about an issue in dispute. Islamic Evidence Law is a body of rules that helps to govern conduct and determines what will admissible in certain legal proceedings and trials. In the proceeding that involves digital evidence, the court will consider whether the digital evidence is admissible or inadmissible depends on the requirements of admissibility stated in law statutes in force and the existence of any Standard Operating Procedure (SOP). Under section 33 of the Syariah Court (Federal Territories) Evidence Act or other Syariah Evidence Enactments, digital evidence is subjected to be authenticated by the digital forensics experts. In digital forensics, the process of identification, preservation, collection, analysis, and presentation is the main procedures contained in any Standard Operating Procedure (SOP) of any digital forensics services. The court will ensure that this procedure can maintain the authenticity and the originality of the evidence especially on the issue of expert qualification, a chain of custody and analysis part. Thus, digital forensics is integrated with the Islamic law of evidence to maintain justice in delivering judgment. Therefore, this article examines the standard requirement of the admissibility of digital evidence by digital forensic methodology by using the qualitative approach on the analysis of articles, books, law statutes documents and law cases. The results show that the need for amendment of Syariah Court Evidence and Procedure statutes and the necessity of the existence of Standard Operating Procedure (SOP) on digital evidence in the Syariah courts as a guideline for judges, lawyers and parties involved.
MALAYSIA AND CHINA MEDIA SYSTEM COMPARISON BASED ON MCQUAIL THEORY
Authors: Abdullah Noor Aziah , Mijan Rohana
Published: January 2020

The concept of media systems in the twentieth century cannot be applied to the idea of media systems in the 21st century. As the media system is dominated by the Four Press Theory (Siebert et al. 1956), a new theory has been developed in line with the development of media technology, McQuail's Media Normative Theory (2010). McQuail's Media Normative Theory (2010) introduces four media system models, a liberal pluralist or market model, social responsibility or public interest model, a professional media model / a professional model and an alternative media system model. Alternative media model '. As such, this paper aims to draw comparisons between the current model of the Malaysian media system and China, based on the variables of independence, government intervention and control over recent research.
Temperature Measurement of Coal Pipe of Coal Mills by a Modified Bridge Circuit
Authors:   Electronics & Communication Engineering Dept, Bankura Unnayani Institute of Engineering, Bankura, 722146, India. Member, IEI, INDIA., Chatterjee Karunamoy , Maity Tapan ,   Electronics & Communication Engineering Dept, Bankura Unnayani Institute of Engineering, Bankura, 722146, India. Associate Member, IEI, INDIA, Chattopadhyay Subrata ,   Electrical Engineering Department, National Institute of Technical Teachers' Training and Research, Saltlake City, Kolkata
Published: January 2020

In our earlier work we proposed a method to measure the temperature of the coal pipe of Coal Mills in PF Boiler by a continuous basis, In order to achieve, accurate measurements of coal pipe temperature, using the resistive transducers like resistance temperature detector (RTD), the small resistance changes linearly with temperature, but resistance measurement by using RTD using normal Wheatstone bridge circuit would have errors for the stray capacitance presents in between bridge nodal points and the ground. Hence, by the use of a modified operational amplifier based Wheatstone bridge network, these effects can be minimized. The bridge performance has been studied experimentally with RTD. It has been observed good linearity, repeatability and variable sensitivity over the wide range of temperature.
Effect of Machining Parameters in Milling Aluminum Alloy 7075-T6 under MQL Condition
Authors:   Manufacturing Section, Universiti Kuala LumpurMalaysia Italy Design Institute, Kuala Lumpur, Malaysia., Yazid M.Z.A. , Zainol Azreen ,   Manufacturing Section, Universiti Kuala LumpurMalaysia Italy Design Institute, Kuala Lumpur, Malaysia., Mustapaha A.M. ,   Manufacturing Section, Universiti Kuala Lumpur-Malaysia Italy Design Institute, Kuala Lumpur, Malaysia.
Published: January 2020

Minimum quantity lubrication (MQL) is an eco-friendly method, where a small amount of fluid was sprayed to cutting edge in mist form with the aid of the air. The foregoing studies revealed that inappropriate machining parameters without the assistance of the cutting fluid methods became a major challenge in milling aluminum alloy 7075-T6. The paper presents the findings of the experimental work to assess the effect of machining parameters towards cutting tool life and machined surface roughness in milling aluminum alloy 7075-T6 at high cutting speed under MQL condition. An eight-run experiment was designed according to full factorial design based upon two levels of cutting speed (500 m/min, 600 m/min), feed rate (0.12 mm/tooth, 0.15 mm/tooth), and axial depth of cut (1.40 mm, 1.70 mm) and then analyzed employed ANOVA to determine the significant machining parameters. The cutting tool life and machined surface roughness were assigned by the rejection criterion of tool flank wear in the milling operation. The optical microscope and portable surface roughness tester were applied to analyze tool wear and average surface roughness value. Cutting speed and feed rate were significantly contributing to the tool life and surface roughness. The longest tool lifespan of 20.14 minutes and lowest surface roughness value of 0.569 µm were obtained at a speed of 500 and 600 m/min, respectively, with a low combination of the rest of parameter which are 0.12 mm/tooth and 1.40 mm.
L Index Based Weak Area Identification of IEEE 118 Bus System using Dynamic Simulation in PSS®E
Authors:   Department of Electrical Engineering, Nerist, Nirjuli (Arunachal Pradesh) India, Gogoi Kamaljyoti , Chatterjee Saibal ,   Department of Electrical And Electronics Engineering, NIT Mizoram, Aizawl (Mizoram) India.
Published: January 2020

Voltage stability is a relevant part of power system stability analysis ever since many voltage collapse incidences have occurred at different regions of the world. In this paper we take up IEEE 118 bus system as it represents a close approximation of standard Grid system. This IEEE 118-bus system has fixed number of predefined generators, synchronous condensers, transmission lines, transformers and loads. In this work IEEE 118 bus system is simulated and load flow simulation is computed using the software PSS®E. The weak buses of the IEEE standard 118 bus network are predicted with the help of L-Index Algorithm in MATLAB. Further dynamic simulation is also performed in the weak buses obtained from L-Index as it opens up scope of more detail analysis of the system. An initial transient disturbance is then introduced in the weak buses and then the resultant maximum frequency deviation and the recovery time of the voltage is computed which finally helps to detect the weak areas in the transmission network. Further Critical Clearing time of the weakest bus is also computed.
Processing and Characterization of Natural Fiber Reinforced Polymer Composite
Authors:   Assistant Professor, ME Department Institute of technology Gopeshwar Kothiyalsain, Chamoli, 246424 Uttarakhand, India, Kandwal S. , Singh S. ,   Designation: Associate Professor, ME Department BTKIT Dwarahat, Almora, 263653 Uttarakhand, India, kumar Bhupendra ,   Assistant Professor, ME Department Institute of technology Gopeshwar, Kothiyalsain, Chamoli, 246424 Uttarakhand, India
Published: January 2020

Polymer materials synthetic fibers, for example, glass and carbon gives point of interest of high stiffness and strength to weight proportion when compare with conventional construction materials, for example wood, cement and steel. The accessibility of natural fibers and comfort of manufacturing have attempted researchers to try locally accessible inexpensive fibers and do study for their feasibility of strengthening purpose. Accordingly, many researchers do broad study on the properties of polymer matrix composite. The synthetic fiber substituting with the natural fiber for example, jute, sisal, pineapple and bamboo. The natural fiber removed by retting and manual procedures were exposed to soluble base treatment. this study is concerned with the investigation of mechanical properties of Grewia Optiva and jute fiber with epoxy resin matrix-based polymer composites. study investigate the tensile, bending and abrasion behavior of composites material made by grewia optiva and jute into epoxy resin. result shows that the better tensile strength of Grewia optiva fiber composite.
The Interactions between Cosmopolitanization and Migration: New Trends
Authors:   Ph. D., Associate Professor, Department of Humanities, National University of Food Technology (Kyiv, Ukraine) 68 Volodymyrska str., 01601 Kyiv, Ukraine,, Sarakun Larysa , Babushka Larysa ,   Ph. D., Associate Professor, Chair of Theory and History of Culture of the National Music Academy of Ukraine named after Peter Tchaikovsky (Kyiv, Ukraine), Drapohuz Vasily ,   Ph. D., Associate Professor, Department of Philosophy, Center for Humanitarian Education of NAS of Ukraine (Kyiv, Ukraine), Popova Oksana ,   Ph. D., Associate Professor, Social Sciences and Humanities Department, National University of Physical Education and Sports of Ukraine (Kyiv, Ukraine)
Published: January 2020

The author made a philosophical analysis of the migration phenomenon. The problems of cosmopolitanization and migration in the context of globalization have been observed and their main vectors of interaction have been pointed out here. The new methodology is cosmopolitanization. It means the world experience and cultural infinity. Global interdependence and risks of available knowledge change social and political quality of national communities. This feature is defined as cosmopolitanization. The cosmopolitan idea spreading is related to migration mainstreaming, integration and globalization. Therefore there is a need to study interference issues of cosmopolitanization and migration, the prospects of their development in the context of globalized modernity. The migration analysis can detect the general conditions of its occurrence. It helps to consider the migration structure and make a comparative analysis of immigration forms, to establish this role in the society. The philosophical understanding of the migration phenomenon is reflected in a number of concepts, including concepts of passionary changes. The migration system in the world is characterized by close economic, cultural, political and geographical bonds. The phenomenon is associated with the term «globalization» in the context of current international relations. Nowadays migration intensifies and moves into a new stage. An essential part of immigration policy is a policy of integration of migrants, which involves targeted measures in many areas of society. In this article the author reveals interaction principles of migration and cosmopolitanization. This means that a closed society disappears forever. However, most people do not perceive it as liberation. As it was noted by Ulrich Beck, the rejection of the national paradigm is not tantamount to a global «cosmopolitanism of common good». Cosmopolitanization is a response to a changing world. How will the humanity evolve? Will migration processes, integration, interaction and people interdependence develop? Will resistance to globalization be intensified? What will be the attractor of social development?
Controlling the Chaos of Logistic Map using Switching Strategy
Authors:   Assistant Professor, Department of Mathematics, Government College for Girls Sector 14, Gurugram-122001, India., Kumari Sudesh , Chugh Renu ,   Professor, Department of Mathematics, Maharshi Dayanand University, Rohtak-124001, India., Nandal Ashish ,   Assistant Professor, Department of Mathematics, Pt. NRS Government College, Rohtak-124001, India.
Published: January 2020

In our very recent work (2019), we extended the stability performance of logistic map up to a higher value of r using SP orbit. In this article, we further extend this range of stability by adopting switching strategy (Parrondo’s Paradox) of controlling the chaos of dynamical systems. We observe that even the earlier chaotic orbits of four step feedback procedure can be converted into periodic orbits. Our approach can be used to solve a wider circle of engineering problems.
Unauthorized Vehicle Parking Detection and Auto-Locking using an Arduino and a Relay
Authors:   PG scholar, Department of Electronics and Communication Engineering, IFET College of Engineering, Villupuram (Tamilnadu) India., Christopher C. George , Vidhya J. ,   Associate Professor, Department of Electronics and Communication Engineering, IFET College of Engineering, Villupuram (Tamilnadu) India.
Published: January 2020

As the populace expands step by step, the quantity of vehicles are additionally expanding and this prompts numerous mishaps and traffic clogs. In this bustling world, individuals consistently use to leave vehicles at confined or no parking zones. At the point when a vehicle has been left at no parking territory, the street gets smaller and cause traffic clog. Enormous number of traffic police are sent to check the unlawful stopping and fine the proprietors with the goal that they would not stop again in no stopping zone, yet it is anything but a successful arrangement. In this manner, different advancements have been utilized for the identification of vehicles that are left at no leaving zone. In this proposed framework, vehicles which are parked at restricted area is being detected and locked using a relay.
Smart Home Automation using Hand Gesture Recognition System
Authors:   Student, Department of Computer Science, Amity University Mumbai, India., Nadar Vignesh Selvaraj , Sinha Vaishnavi Shubhra ,   Student, Department of Computer Science, Amity University Mumbai, India., Ratre Sushila Umesh ,   Professor, Department of Computer Science, Amity University Mumbai, India.
Published: January 2020

Visual interpretation of hand gestures is a natural method of achieving Human-Computer Interaction (HCI). In this paper, we present an approach to setting up of a smart home where the appliances can be controlled by an implementation of a Hand Gesture Recognition System. More specifically, this recognition system uses Transfer learning, which is a technique of Machine Learning, to successfully distinguish between pre-trained gestures and identify them properly to control the appliances. The gestures are sequentially identified as commands which are used to actuate the appliances. The proof of concept is demonstrated by controlling a set of LEDs that represent the appliances, which are connected to an Arduino Uno Microcontroller, which in turn is connected to the personal computer where the actual gesture recognition is implemented.
Deformation Exploration in Mass Spring Model using Euler and Verlet Integration Methods
Authors:   Research Scholar, Register No: 18121172292017 , Sarah Tucker College (Autonomous), Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli - 627 012, Tamil Nadu, India, Sudhamani R. , Merriliance K. ,   Assistant Professor, Department Of MCA, Sarah Tucker College(Autonomous), Tirunelveli- 627 002, Tamil Nadu, India.
Published: January 2020

The paper assigns the firm technique that has been designed for the mesh based simulation by using the concept of mass spring model. The general mass spring model has been utilized in a lot of applications for instance, fashion designing, merging virtual booth and in the basics of cloth simulations, consecutively in order to develop effectual surgical training through virtual environments. Though, virtual simulators necessitate meeting both requirements that are, dynamic to be real time and high realistic. While dissimilar forces have applied on the particles they generate several differential equations. In order to, solve these equations, different kinds of integration methods have been used to get the best results. Here in this paper, it shows the procedure of generating a mesh based simulation using euler and verlet integrations method. Verlet method executes vigorous compared to Euler integration method on the basis of deformation error.
A Wideband Subharmonic Mixer Incorporating Signal Interference Technique Based Isolation Circuit
Authors:   Department of Electronics and Communication Engineering,. National Institute of Technology Patna, Patna, India., Kumari Sadhana , Mondal Priyanka ,   LERMA, Observatoire de Paris, 75014 Paris, France.
Published: January 2020

A broadband (8.7 GHz – 11.5 GHz) performing passive sub-harmonic down-conversion mixer using signal interference technique (SIT) is demonstrated, designed and reported in this paper. The local oscillator (LO) frequency is half of the radio frequency (RF) for the 2xsub-harmonic mixer architecture; therefore, for the RF lying in the range 8.7 GHz to 11.5 GHz, required LO frequency range is 4.25 GHz to 5.65 GHz with 0.2 GHz fixed intermediate frequency (IF). With a broadband operation, designed prototype shows single sideband down-conversion loss in the range 9.6 dB – 12.6 dB. Moreover, large-signal testing infers an adequate linear trait of the proposed design, showing -3 dBm and 11.32 dBm for the 1 dB compression point and third order input intercept point, respectively.
Tri Concomitant Local Feature Learning for Diabetic Retinopathy Classification
Authors:   Research Scholar, Department of Electronics & Communication Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502 India, Randive Santosh Nagnath , Senapati Ranjan Kumar ,   Professor, Department of Electronics & Communication Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502 India,
Published: January 2020

In this paper, we have proposed a new technique entitled as Transformed Directional Tri Concomitant Triplet Patterns with Artificial Neural Network is proposed for Diabetic Retinopathy Classification. TdtCTp consist of three stages to obtain detail directional information about pixel progression. In first stage, structural rule based approach is proposed to extract directional information in various direction. Further, in second stage, microscopic information and correlation between each sub-structural element are extracted by using concomitant conditions. Finally, minute directional intensity variation information and correlation between the sub-structural elements are extracted by integrating first two stages. After feature extraction, the extracted feature is used as input to the artificial neural network. To the best of our knowledge, this is the first learning based approach for diabetic retinopathy classification. Effectiveness of the proposed method is evaluated in terms of average precision and compared with existing state-of-the-art methods. The experimental analysis shows that the proposed method is achieved significant performance compared to other methods.
Enhancing the Tablet Images using Noise Reduction Algorithms by Analyzing Different Color Models
Authors:   Department of Information Technology, Bharathiar University, Coimbatore, Tamilnadu, India, Dhivya A.B. , Sundaresan M. ,   Department of Information Technology, Bharathiar University, Coimbatore, Tamilnadu, India
Published: January 2020

Unidentified tablets are challenges to both patients and healthcare professionals. Using these unknown tablets results in undesirable reaction of drug and also it is foundation to ill health that leads to death even sometimes. Thus, recognition of unidentified tablets is a significant task in medical industry. Identification of tablets is one of the major concerns for public and pharmacists, which can be carried out by means of either text-based or image-based methods. The tablet identification system is focused on removing noise from the tablet images using algorithms like Independent Component Analysis (ICA) and Discrete Wavelet Packet Transmission (DWPT). The three color space models, i.e., RGB (Red-Green-Blue), YCbCr (Y-Luma, CChroma of blue and red components) and HSV (Hue-SaturationValue) are examined for their efficiency on removing noise from tablets. For each color space model, the two denoising algorithms, ICA and DWPT are analyzed and applied. The result is interpreted using metrics like PSNR, FoM, MSSI and Speed. Experimental results proved that denoising with HSV color space model gives maximum efficiency when used with ICA and DWPT-based tablet identification systems
Active Power Decoupling Topology for Single Phase Bridge Inverter based on Buck-Boost Convertor
Authors:   Department of Electrical Engineering, Zeal College of Engineering & Research, Pune, India, Hans Manoj , Godashe Kiran ,   Department of electrical Engineering, Rajaram Shinde college of Engineering, Chiplun, India., Prakash Satya ,   Department of Electrical Engineering, Zeal College of Engineering & Research, Pune, India., Chourasia Anamika ,   Department of Electrical Engineering, Govt. Polytechnic College, Naogaon, India,
Published: January 2020

Increasing demand of power has led to exploration of non-conventional sources of energy. Solar energy has been the most exploited source of energy in this regard. Effectiveness of power utilization depends on the power conversion from AC to DC. Further improvement in utilization of DC power depends on the DC-DC conversion steps involved. The planned methodology offers a study of power decoupling method while no further power semiconductor are used for a DC to 1-ɸ AC device. 1-ɸ voltage source bridge inverters have primarily two drawbacks, that's reduction in DC voltage usage and disparity in power among the incoming and outgoing sides. These difficulties have been looked upon and a topology has been implemented that uses just a film capacitance beforehand buck-boost convertor that is linked to the voltage-source bridge inverter. Reenactment and preliminary outcome confirmed the credibility of the planned power decoupling technique on the 2-stage 1-ɸ bridge inverter by buck-boost convertor.
Optimization of Arrangement of LED on the PCB for High Power LED Module
Authors:   Ph.D Candidate, Optoelectronics, Hanseo university, Seosan, South Korea., Cho Ju Yong , Kim Ho Seob ,   Professor, Department of Nanoscience, Sunmoon University, Asan, South Korea., Jang Won Kweon ,   Professor, Department of Aeronautic Electricity, Hanseo University, South Korea.
Published: January 2020

LED operating under high-temperature condition badly affects reliability. To reduce junction temperature of LED is crucial. In this paper, luminous intensity and photo conversion efficient with respect to electrical power are discussed. Moreover, three arrangements for LED module are suggested, and design parameters are discussed in terms of the number of LEDs and distance between each LED. In order to evaluate thermal performance of designed the module, computer simulation was conducted. Distance between each LED is selected by 7.6, 9.6, and 13.3mm for 80, 128, and 240 LEDs, respectively and unit heat flux is calculated to be 0.47W/mm2 , 0.29W/mm2 , 0.16W/mm2 for 80, 128, and 240 LEDs, respectively. In this case, Maximum temperature on the PCB was 67.8C, 62.5C, and 57.1C for 80, 128, and 240 LEDs, respectively. The Maximum temperature and unit heat flux was reduced by 15.7% and 66%, respectively, when the number of LEDs are increased by three times. We found that the temperature between LEDs can be reduced if unit heat flux can be reduced.
Data Mining Techniques for Analysing Employment Data
Authors:   Lecturer, NUI, Galway, Ireland., Nachev Anatoli
Published: January 2020

This paper proposes a methodology that uses a large-scale employment dataset in order to explore which factors affect employment and how. The proposed methodology is a combination of predictive modelling, variable significance analysis, and VEC analysis. Modelling is based on logistic regression, linear discriminant analysis, neural network, classification tree, and support vector machine. Following the CRISP-DM standard process model, we train binary classifiers optimising their hyper-parameters and measure their performance by prediction accuracy, ROC analysis, and AUC. Using sensitivity analysis, we rank the variable significance in order to identify and measure factors of employment. Using VEC analysis, we further explore how values of those factors affect employment. Findings show that best performing models are neural networks and support vector machines with preference to the latter for quality of VEC. Experiments also suggest that education and age are primary contributors for correct classification with specific value distribution, discussed in the paper. All results were validated using a rigorous testing procedure that involves training, validation, and test data partitions and a combination of multiple runs along with three-fold cross-validation. This study addresses some gaps in previous research publications, which lack quantification of the conclusions made.
The Effect of Technology Based Applications on Brand Image in the Telecommunications Industry
Authors:   Bachelor Degree in Computer Science from the University of Bahrain, Abdulaal Husain , Mubarak Muneer Mohammed Saeed Al ,   Associate Professor of Management and Marketing, VP for Admin & Finance and Acting Dean of Student Affairs, at Ahlia University
Published: January 2020

The paper investigates the effect of technology-based applications on brand image in the telecommunications industry. The study aims to identify the most influencing technology-based application on brand image and areas of improvements for each application. The study proposes a model that shows the effect of certain applications on brand image in the telecommunications industry. A quantitative survey was used for data collection to support the model. The research shows a significant overall model where technology-based applications account for 28% of variance in the consumer’s perception of the brand image. Websites and social media applications have significant impact on brand image while mobile applications & services have positive but insignificant impact on brand image. The paper can help companies to adopt technology-based applications in their brand management strategies and invest more on technology-based channels to enhance the brand image, attract more customers, and gain competitive advantage. There has been little research focusing on the effect of technology-based applications on the brand image and specifically in the telecommunications industry.
Spectrum Allocation by Sealed Bid Game Theory
Authors:   with MAKAUT INDIA. He is now with the Department of Electronics & Communication Engineering, as a Research Scholar, De Aritra , Datta Tirthankar ,   with the Department of Electronics & Communication Engineering, Netaji Subhash Engineering College INDIA, as a Professor and Principal
Published: January 2020

Wireless communication subscribers are increasing day by day specially in fifth generation (5G) wireless communication where multiple number of users (Multiple Input Multiple Output or MIMO) can be served in a specific time. The heavy data usage is also enhanced with the increasing the number of subscribers, this data transfer speed depends on the amount of spectrum allocation to the specific subscriber. Thus, spectrum allocation is a major criterion for wireless communication performance improvement. The spectrum allocation efficiency can be observed by Game Theory, which is a popular decision maker of modern era. Sealed Bid Game theory is one of the popular segment of the game theory. The spectrum allocation can be done by using Sealed Bid Game theory and spectrum equilibrium can be observed by using different sub division of Sealed Bid Game theory.
Maximum Takeoff Gross Weight of Aircraft in Search and Rescue Sorties
Authors:   Universiti Kuala Lumpur Malaysian Institute of Aviation Technology, Dengkil, Selangor, Malaysia, Suffian Mohd Harridon Mohamed , Isa Mohamad Dali ,   Universiti Kuala Lumpur Malaysian Institute of Aviation Technology, Dengkil, Selangor, Malaysia., Noh Hazariah Mohd ,   Universiti Kuala Lumpur Malaysian Institute of Aviation Technology, Dengkil, Selangor, Malaysia., Nur Nurhayati Mohd ,   Universiti Kuala Lumpur Malaysian Institute of Aviation Technology, Dengkil, Selangor, Malaysia.
Published: January 2020

Several aircraft types are commonly used to perform many search and rescue missions throughout the world. Aircraft have been used because they are able to offer a bird’s eye view of the surrounding search areas. In general, these aircraft come in various shapes, sizes and weights, and have myriad capabilities in carrying rescued and/or injured personnel and also equipment for the search and medical operations during the search and rescue sorties. For an aircraft, takeoff gross weight is important because it will affect the flying performance of the aircraft. To perform an effective search and rescue mission, the right selection of aircraft is essential such that unnecessary resources are not being wasted. In line with this notion, this study examines the distribution of the maximum takeoff gross weight of aircraft that have been typically used in search and rescue sorties. This knowledge will help in the design of future aircraft for such missions and also narrowing the selection of existing aircraft to be used on that kind of operations. It is found from the data analysis that most current operators have been using medium-haul aircraft that have a takeoff gross weight between 4,301 kg and 8,600 kg.
Determination of Cable Tension Force using Accelerometer
Authors:   Civil Engineering Department, Bina Nusantara University, Jakarta, Indonesia., Suangga Made , Gunawan Rayner ,   Civil Engineering Department, Bina Nusantara University, Jakarta, Indonesia., Hidayat Irpan ,   Civil Engineering Department, Bina Nusantara University, Jakarta, Indonesia.
Published: January 2020

Cable is the main element in a long span structure and is often used for special structures such as long span bridges, roofs and other structures that require a long span. The stiffness of the cable is determined by the amount of axial tensile force acting on the cable, and hence, the magnitude of the actual tensile force on the cable is an important factor to be determined and monitored. One simple method for determining the actual tensile force on a cable is to calculate the tensile force from the first natural frequency of the cable. However, it is important to ensure that the formulas used to calculate the tensile force are accurate. This research aims to determine the level of accuracy and the factors that influence the accuracy of the formula to determine the tension force of the cable from the natural frequency value of the cable. The methodology used in this research project was by applying free vibrations to the cable with given axial tensile load and measuring the acceleration that occurred with an accelerometer sensor. By using Fast Fourier Transform (FFT), the natural frequency value of the cable can be calculated and the actual tensile strength in the cable can be determined. From the experiment conducted, it was found that the length of the cable affects the accuracy of the measurement of the natural frequency and the magnitude of tensile force of the cable. The strain that occurs on the cable plays a very important role to the accuracy of the formulas used.
Development of the Packer and its Application for Fixing Production Casing Leaks of Oil and Gas Wells
Authors:   Siberian Federal University, 82, Svobodny Ave., bdg 6, Krasnoyarsk, 660041, Russia., Vaganov Roman A. , Buryukin Fedor A. ,   Siberian Federal University, 82, Svobodny Ave., bdg 6, Krasnoyarsk, 660041, Russia, Kositcyna Svetlana S. ,   Siberian Federal University, 82, Svobodny Ave., bdg 6, Krasnoyarsk, 660041, Russia, Zhukov Maksim V. ,   LLC “SSK Group”, 20d, Zheleznodorozhnikov St., Krasnoyarsk, 660090, Russia,
Published: January 2020

A large number of oil and gas wells at the late stage of operation are characterized by high and constantly increasing water cut of the extracted product. One of the reasons for the high water cut is the presence of production casing leaks. The occurrence of production casing leaks is connected both with the quality of primary cementing and various operating conditions of wells. To solve this problem, different technologies are applied with the use of plug-back mixtures and technical means, each of which has its own advantages and disadvantages as well as its own application area. In particular, the packers of various structures are widely used. Among the many options, the retrievable packers benefit in the market even in the case of their relatively high costs due to their easy removal and reuse. The article presents the results of the work on the development of a new structure of the retrievable packer with cable termination glands and hydraulic opening system in the well. The structure of the retrievable packer was tested in the laboratory conditions with the use of a purpose-designed test rig and in the field environment. The designed stand for testing individual structural units and the packer as a whole is a casing string simulator in which the test packer is placed. The stand is equipped with a hydraulic cylinder to simulate the movement of the packer, hydrostations to simulate hydraulic loads on the packer and breakthrough fluid from the leakage of the production string, circulation pumps to simulate circulation pumping through the packer. Field tests were carried out at one of the fields in Eastern Siberia, Russian Federation, at wells with very high water cuts. Full compliance with the claimed requirements concerning the reliability of operation of mechanisms and well plugging of the leak interval was shown. Besides that, the advantage of the packer is the possibility of communication between spaces above and below the packer. At the same time, the possibility of technological washing, acid treatment, killing and other technological operations is preserved. The use of packer during repair and insulation works in wells has made it possible to reduce the duration of works on the average by 2.5 times.
Policy Design for Optimizing the Hydropower Generation Potential of Maithon Multi-purpose Reservoir System
Authors:   PhD Research Scholar in Department of WEM at the Central University of Jharkhand, Ranchi, India., Sagar Priti , Parhi Prabeer Kumar ,   Assistant Professor in Department of WEM at the Central University of Jharkhand, Ranchi, India., Bharti Birendra ,   Assistant Professor in Department of WEM at the Central University of Jharkhand, Ranchi, India
Published: January 2020

It is proposed to develop an optimal operating policy for the Maithon multi-purpose reservoir system, situated at Maithon, which is approximately 48 km from the district of Dhanbad (Jharkhand), India. The present objective is to maximize hydropower generation subjected to reservoir mass balance, release, storage, reservoir-drawdown level, overflow, maximum flood zone space, maximum and minimum storage constraints under three different dependable inflow conditions namely 50%, 70% and 90%. The storage curves also been derived after analyzing the various policies and was observed to be persistent with that of demand requirements. The derived policy is capable of producing maximum annual hydropower of 133394.43 MWh, 103015.14 MWh and 61782.77 MWh for 50%, 70% and 90% dependable inflow conditions respectively against the existing generated values of hydropower as 102958.3 MWh which has been averaged over last 10 years. Further the firm hydropower power values obtained under 50%, 70% and 90% dependable inflow conditions are 5.773 MW, 3.421 MW and 2.67 MW respectively. In this study the potential of hydropower energy production of the reservoir system is explored extensively, and a trade-off between reservoir release especially for irrigation purpose and maximum energy production has been established for the use of various stakeholders as well as managers of reservoir operations.