bluuebunny/crossref_metadata_2025 huggingface dataset:
Дифракционные решетки с блеском, получаемые на пластинах Si --- первые результаты
Authors: Горай Л.И. , Березовская Т.Н. , Мохов Д.В. , Шаров В.А. , Шубина К.Ю. , Пирогов Е.В. , Дашков А.С.
Published: June 2021

Using direct laser lithography and liquid etching of polished vicinal Si(111) wafers, a technology was developed and diffraction gratings 500 /mm with a blaze angle of 4° were fabricated. The manufacturing process of a reflective Si-grating of a triangular profile (sawtooth) can be divided into four main steps: (1) obtaining a pattern of a protective mask for etching grooves; (2) anisotropic etching of grooves in KOH solution; (3) etching to smooth the grating profile and polish the surface of working facets; (4) coating to increase reflectivity. The samples obtained were characterized using scanning electron microscopy and atomic force microscopy methods to determine the shape of the groove profile and roughness: the shape turned out to be close to the ideal triangular, and the root-mean square roughness was less than 0.3 nm. With the help of the PCGrate™ code, taking into account the measured real groove profile, the diffraction efficiency of gratings operating in classical and conical mounts in soft-X-ray and extreme ultraviolet radiation has been simulated. The obtained efficiency values are close to the record ones for the corresponding spectral range and the Au-coating of the grating.
Схема VLS-монохроматора высокого разрешения для синхротронного излучения
Authors: Шатохин А.Н. , Вишняков Е.А. , Колесников А.О. , Николенко А.Д. , Рагозин Е.Н.
Published: June 2021

A high-resolution monochromator with a broad spectral range of 125 – 4200 Angstrem is designed for the measuring beamline for the projected synchrotron radiation source "SKIF" (Novosibirsk). The optical configuration of the monochromator comprises a grazing-incidence concave mirror, a plane VLS grating, and an exit slit. It is planned to use two replaceable VLS gratings with central line frequencies of 600 mm-1 and 150 mm-1 intended for subranges of 125 – 1000 Angstrem and 900 – 4200 Angstrem , respectively. Wavelength tuning in each of the two subranges is effected by only the rotation of the VLS-gratings. Due to the proper choice of p_1 VLS-grating coefficients, the focal distance varies only slightly over the entire spectral range, and the p_2 VLS-grating coefficients are used to suppress the aberrations of the mirror and the gratings. The resolving power of the configuration obtained by numerical ray tracing exceeds 1000 in the 125 – 1000 Angstrem range and 2000 in the 900 – 4200 Angstrem range.
Частотно-селективное распространение спиновых волн в трехмерном магнонном Т-образном сплиттере
Authors: Мартышкин А.А. , Бегинин Е.Н. , Садовников А.В.
Published: June 2021

Using numerical and experimental methods, the mechanism of control of the transmission of a spin-wave signal in a three-dimensional magnon splitter, formed by an orthogonal junction of magnetic strips of yttrium iron garnet, has been investigated. It is shown that by variation the size of the air gap between the spin-waveguide sections, it is possible to control the selection of the signal propagating in the output sections of the structure. From an applied point of view, the results obtained can be used to create an interconnection element in multilevel magnon information processing devices for the formation of multilayer magnon network topologies and miniaturization of computing devices based on the principles of magnonics. Key words: spin waves, magnonics, three-dimensional interconnections, micromagnetic modeling.
Визуализация проводящих каналов в полимерных слоях методом атомно-силовой микроскопии с проводящим зондом
Authors: Корнилов В.М. , Лачинов А.Н. , Юсупов А.Р.
Published: June 2021

The results of an experimental study of the local electrophysical properties of ultrathin polymer films by atomic force microscopy with a conducting probe are presented. It is established that visualization of current flow sites (conducting channels) is possible in areas from which the surface layer has been mechanically removed. The conducting channels in the current image have the form of individual points with a height corresponding to the locally flowing current. It is found that the location of the observed channels correlates well with the model of conductivity along the grain boundaries of the supramolecular structure of the polymer.
Исследование динамики разогрева анодных узлов в безмасочном нанолитографе на основе массива микрофокусных рентгеновских трубок
Authors: Глаголев П.Ю. , Демин Г.Д. , Дюжев Н.А. , Махиборода М.А. , Филиппов Н.А.
Published: June 2021

Исследована динамика разогрева матрицы узлов анодной мембраны с прострельной мишенью под действием автоэмиссионного тока, генерируемого в электронной системе безмасочного рентгеновского нанолитографа. Определены перспективные материалы мембраны, обеспечивающие эффективный теплоотвод от матрицы анодных узлов, среди которых алмазоподобные пленки показали наилучший результат. При рассчитанной мощности мягкого рентгеновского излучения P_X=2.5 nW, рассеиваемой на пикселе размером 20 nm, и дозе облучения рентгенорезиста D=100 J/m2 время экспонирования составило 25 μs. Показано, что за время экспонирования пластины диаметром 150 mm алмазоподобная анодная мембрана размером 300x300 элементов разогревается от 20 до 62oC, что в 21 раз ниже температуры разогрева альтернативного материала анода из Si. Описан технологический маршрут изготовления матрицы анодных узлов с учетом предложенных способов оптимизации ее конструкции, направленных на понижение тепловых эффектов разогрева при проведении процессов рентгеновской нанолитографии. Полученные результаты могут быть применимы при разработке системы микрофокусных рентгеновских трубок в составе безмасочного рентгеновского нанолитографа. Ключевые слова: рентгеновская нанолитография, микрофокусная рентгеновская трубка, прострельная мишень, матрица анодных узлов, тепловой разогрев, термическое расширение, Bosch-процесс.
Оптимизация режимов изготовления пленок Nb, NbN, NbTiN и высококачественных туннельных переходов на их основе для приемных структур терагерцевого диапазона
Authors: Чекушкин А.М. , Филиппенко Л.В. , Ломов А.А. , Liu Dong , Shi Sheng-Cai , Кошелец В.П.
Published: June 2021

Описана оптимизация существующей технологии изготовления сверхпроводящих пленок и высококачественных туннельных переходов на установке магнетронного распыления. Для расширения частотного диапазона до 1 THz и получения предельных параметров сверхпроводниковых элементов были оптимизированы режимы изготовления пленок Nb, NbN и NbTiN. Для создания приемных элементов на частоты выше 700 GHz туннельные переходы сверхпроводник--изолятор--сверхпроводник Nb/Al--AlN/NbN включаются в микрополосковую линию NbTiN--SiO2-Al. Такие структуры разрабатываются для матричного приемника на телескопе Atacama Pathfinder Experiment и ряда других радиоастрономических проектов. Ключевые слова: сверхпроводимость, туннельные переходы, магнетронное напыление, тонкие пленки.
Применение нанопорошков окиси церия для полировки кремния
Authors: Чхало Н.И. , Ахсахалян А.А. , Вайнер Ю.А. , Зорина М.В. , Пестов А.Е. , Свечников М.В. , Торопов М.Н. , Kumar N. , Токунов Ю.М.
Published: June 2021

Описаны методы исследований и первые результаты, полученные при изучении шероховатости подложек из монокристаллического кремния (111), обработанных на финальной стадии различными способами: традиционная полировка без использования химико-механической полировки (ХМП), с использованием ХМП и без ХМП, но с применением нанопорошков окиси церия. Продемонстрирована эффективность использования нанопорошков CeO2. Были получены следующие значения эффективной шероховатости: без ХМП --- 3.56 nm, с ХМП --- 0.54 nm и без ХМП, но с полировкой CeO2 --- 0.93 nm. Ключевые слова: поверхность, шероховатость, рентгеновская оптика, глубокая шлифовка-полировка.
Polityka pro homine. Wybrane kwestie z etyki życia politycznego w zarysie
Authors: Mazur Jan
Published: June 2021

Monografia Polityka pro homine zawiera rozważania dotyczące wybranych zagadnień etyki życia politycznego w odniesieniu do dwóch podstawowych schematów charakteryzujących myślenie etyczne w polityce: działanie – roztropność – dobro wspólne, oraz wolność – prawda – dobro (wspólne). Tłumaczą one istotny sens polityki w wymiarze etycznym. Publikacja składa się z pięciu rozdziałów. Trzy pierwsze mają charakter ogólny, zaś czwarty rozdział dotyczy zagadnień szczegółowych, takich jak moralny problem legalizacji aborcji, sprawa obciążenia podatkowego obywateli, kwestia wojny w aspekcie moralnym i kontrowersje wokół kary śmierci. Piąty rozdział pt. Polityka uprawiana „po chrześcijańsku” przynależy ściśle do katolickiej nauki społecznej, a konkretnie wpisuje się w trzeci etap sylogizmu praktycznego: „widzieć – ocenić – działać”, stanowiącego podstawową dyrektywę metodologiczną. Uwzględniona dyrektywa wyraźnie preferuje etap drugi – „ocenić”, gdyż domaga się tego etyczny charakter rozważań.
Adapting Chinese Qigong Mind-Body Exercise for Healthy Aging in Older Community-Dwelling Low-income Latino Adults: Pilot Feasibility Study
Authors: Yin Zenong , Martinez Cristina E , Li Shiyu , Martinez Martha , Peng Kezhi , Land William M , Ullevig Sarah L , Cantu Adelita , Falk Sharon , Hernández Arthur E , Ortega Catherine , Parra-Medina Deborah , Simmonds Maureen J
Published: June 2021

Background

Research translating the evidence for the benefit of mind-body exercise in older Latinos with limited access to community-based healthy aging programs is sparse.

Objective

This study aimed to evaluate the feasibility of Function Improvement Exercises for Older Sedentary Community-Dwelling Latino Residents (FITxOlder), a Community Health Worker (CHW)-led, mobile technology-facilitated Chinese Qigong mind-body exercise program for healthy aging and to explore its impact on physical and cognitive function and quality of life (QoL) in older community-dwelling low-income Latino adults.

Methods

This study was designed as a Stage 1 feasibility study to develop and pilot-test FITxOlder. In Phase 1 (Stage 1A), a working group of seniors, CHWs, and senior center staff guided the adaptation of Chinese Qigong into a healthy aging program. In Phase 2 (Stage 1B), 49 older Latino adults participated in a 3-arm controlled study to test the feasibility and preliminary effect of CHW-led FITxOlder on physical and cognitive function and QoL measures over 16 weeks.

Results

Although the COVID-19 pandemic disrupted the implementation of the study protocol, we found favorable results regarding participant recruitment, retention, and fidelity of implementation. Notable findings included an 89.3% participant retention, 79.4% of the participants completed at least 70% of the weekly exercise goal, and no report of adverse events. The effects on intervention outcome measures were modest.

Conclusions

FITxOlder is feasible for promoting healthy aging in older Latino adults; future research needs to compare its feasibility with other low-impact exercise programs for healthy aging using a randomized controlled trial.

Trial Registration

ClinicalTrials.gov NCT04284137; https://clinicaltrials.gov/ct2/show/NCT04284137
Obesidad en pacientes con COVID-19 en una unidad de medicina familiar
Authors: Argüello González Alejandra J.
Published: June 2021

Objetivos: identificar la prevalencia de obesidad en pacientes con diagnóstico de covid-19, así como de otras comorbilidades. Métodos: estudio transversal, se realizó un muestreo aleatorio simple, se revisaron expedientes de adultos de dieciocho años o más con diagnóstico de covid-19 confirmada mediante rt-pcr para sars-CoV-2, de la Unidad de Medicina Familiar (umf) No. 186 del Instituto Mexicano del Seguro Social (imss) del Estado de México, notificados al Sistema de Notificación en Línea, para la Vigilancia Epidemiológica de Influenza (sinolave); del 25 marzo de 2020 al 3 julio de 2020. Se registró edad, sexo, índice de masa corporal (imc), antecedente de diabetes mellitus tipo 2, hipertensión arterial y tabaquismo, se utilizó estadística descriptiva para variables de interés. Resultados: se identificaron 37 expedientes, 54.05% hombres, 45.94% mujeres, edad promedio 43.1 años; 51.4% presentó sobrepeso, 35.1%, obesidad, imc promedio 28.9; 37.8% mostró antecedente de tabaquismo, 27%, hipertensión arterial y 16.2%, diabetes mellitus. Conclusiones: existió una alta prevalencia de sobrepeso y obesidad (86.5%), la principal comorbilidad fue tabaquismo, seguido por hipertensión arterial.
Colitis eosinofílica en atención primaria: a propósito de un caso de diarrea crónica
Authors: Paredes Mondragón Carol Viviana , Rojas Castro Oscar Julián , Palacios Alarcón Dayana , Sánchez Duque Jorge A.
Published: June 2021

Las gastroenteritis eosinofílicas son un grupo de enfermedades que representan un reto diagnóstico para los profesionales de la salud de atención primaria, e incluso para gastroenterólogos y patólogos. En el presente escrito se aborda el caso de una mujer de 58 años con cuadro clínico de diarrea crónica de aproximadamente treinta años de evolución, sin etiología establecida, ni respuesta a terapias previas. Posterior al estudio complementario con colonoscopia, más biopsias múltiples con análisis histopatológico, se determinó la presencia de colitis eosinofílica.
High Cycle Fatigue Appearance of 10wt% cr steel and Dissimilar Metal Weld
Authors: Shah Hilal Ahmad
Published: June 2021

The present study deals with the high cycle fatigue (HCF) behavior of a ten wt% Cr steel at ambient also as high temperatures (300–853 K). S–N curves were created at unlike temperatures using an R-ratio of −1. Outcome of mean stress was established over and done with Haigh diagram at 853 K using different R-values. Fatigue life was found to decrease with upsurge in test temperature and stress amplitude. Fatigue life was attempted using Basquin equation. Detailed fracture surface analysis was performed to study the crack initiation and propagation modes towards empathetic the mechanisms of failure at different temperatures.
A Neural Network Model for Wildfire Scale Prediction using Meteorological Factors
Authors: I Lavanya
Published: June 2021

Forest fires are natural hazards defined as movements of fire through unregulated and uncontrolled forested areas. They pose a permanent risk of loss of forest and forest land. The ability to reliably forecast the region that could be involved in a forest fire incident will help to optimize fire prevention efforts. It appears that Portugal may theoretically make better use of the wildfire risk assessment. More than any other region in Europe, it is a country overrun by wildfires. It has a large amount of forest. Forest fires have a long-term impact on the climate because they contribute to deforestation and global warming, which is one of the main causes of the phenomenon. This research employs Back Propagation Neural Network (BPNN) and Recurrent Neural Network (RNN) models with meteorological parameters as inputs to anticipate forest fires as a means of safeguarding forest biodiversity. The results indicate that using meteorological data, it is possible to anticipate the severity of a forest fire at the beginning.
Comparison Performance of Conventional Drying Methods and Flat Plate Collector Solar Dryer
Authors: Gurav Prof. S. S.
Published: June 2021

As another to the marketing of fresh fruits and vegetables, small farmers can think of conservation by drying. In the conservation of agricultural crops, wastewater treatment, and biomass treatment, drying is an important process. Energy requirements for drying can be supplied from different sources, such as fossil fuel, natural gas , electricity, wood, remaining bark forests, and solar energy. Although the use of solar radiation has existed for drying since a long time ago, it has not yet been widely commercialised, particularly in the agricultural sector.
Smart Vehicle Headlight Dimmer
Authors: Anusha K. B.
Published: June 2021

Smart Headlight Dimmer is a component in which we can decrease the number of accidents that are causing due to high intensity of light during night times .This helps to reduce the causing of accidents due to Troxler effect .This device helps us to adjust the intensity of the beam of the headlight according to the intensities of the surrounding light .When the intensity of the surrounding light is high ,then the headlight automatically dims .It also helps in other cases like if the Ultrasonic sensor does not works ,then if any accidents occur it will send a message to the authorised contacts along with the location using the GPS and GSM Modules. GSM module send the alert message on your mobile with the location of the accident. The advancing technology has made our day today lives easier. Since every coin has two sides similarly technology has its benefits also as its disadvantages. the rise in technology has increased the speed of road accidents which causes huge loss of life. The poor emergency facilities available in our country just increase this problem. Our project goes to provide a solution to this problem also.
Design and Development of Forklift
Authors: Patil Mr. Amol. A.
Published: June 2021

In this research work, the Forklift was carried out. The forklift has the following parts, base plate, battery, vertical column, horizontal arm, roller, hook, nuts and bolts, crank plate, lever arm and DC motors. It was designed for load of 50 to 100 kg capacities and the development of suitable system configuration having movable wheel attached base. The performance of this forklift was satisfactory and can be used in the laboratory and industry.
Automatic Car Parking with Arduino, LDR Sensor
Authors: Babu Dr. K. Ramesh
Published: June 2021

Now days it is very important to save the time, money in terms of travelling and parking too. If any one goes to the shopping, people didn’t know, is there any space to the vehicle parking or not,in such a cases to save the public time, automatic car parking helps. Working principle is depends on the sensors which is already arranged in the parking area and LDR sensor which is at the entrance of car parking. It’s all manage with LDR sensors and Arduino micro controller .the simulated results with proteus software pursued .
Modelling of Brushless DC Motor Drive for Electric Vehicle Application
Authors: Patlolla Sai Vamshi
Published: June 2021

In Electric vehicle, motor plays a significant role. In wheel, motor improves the efficiency and safety of high-performance Electric vehicle. There are a lot of motors available in market, out of all considering their advantages and disadvantages Brushless DC motor is chosen as an efficient motor for Electric vehicle propulsion. The reason behind to choose BLDC motor is because of its desired torque vs speed characteristics, cost of maintenance is low, efficiency is high and has high power density. In this model simulation of an accurate and precise BLDC drive for Electric vehicle application is done and Simulation results such as speed, Electromechanical torque, and various phase voltages graphs are obtained.
Cyber bullying Detection in Social Media using Supervised ML & NLP Techniques
Authors: Jikriya Sayyad Suleman
Published: June 2021

From the day web showed up, the hour of long reach relational correspondence developed. In any case, no one may have figured web would be a huge gathering of different surprising organizations like the relational communication. In today’s world staying connected virtually has become a part of human life. Various people from arranged age packs go through hours consistently on such destinations. Notwithstanding how people are really related together through online media, these workplaces convey along enormous risks with them, for instance, advanced attacks, which joins cyberbullying.
Organ Donation Application
Authors: Singh Vishwajeet
Published: June 2021

This Application acts as an essential role in saving the lives of human beings and which is also its main aim is to help the user to get the required blood and organs at the correct time. And it is a mobile-based Application developed in the android platform. This Android application provides an easy and fast way to search for blood and organs. This app enables users to find blood and organs in emergency situations. Users need to register with the Application which is available on the app. And also, they can get brief information on the donor’s contact details includes their location. The user can Contact them By making a call or message directly by using this BIO-Donation Application. The Objective of this Mobile Application is to design an Android Application to maintain necessary information of the Patients, Donors, and report details for any bio-related organization. Project Android Blood Bank Management system was developed so that users can view the information about registered Bio donors such as Name, Address, and other such personal details along with their details of blood group and other Medical Details of the donor. This Mobile Application also has a login page where the user is required to register and only then they can view the availability of blood and organ, and even register to donate blood if he/she wishes to. The main aim of developing this Android Application is to reduce the time to a great extent to avoid spending time in searching for the right donor and the availability of blood and organ required.
Reliability Evaluation of Bulk Power Systems Incorporating UPFC
Authors: Madhu Mr. B.
Published: June 2021

Unified power flow controller (UPFC) is one of the most advanced flexible AC transmission system (FACTS) devices that can simultaneously and independently control both the real and reactive power flow in a transmission line. The utilization of UPFC can result in significant reliability benefits in modern power systems. This paper proposes a novel reliability network model for a UPFC, which incorporates the logical structure and the distinct operating modes of a UPFC. Two-state or three-state models have been used for UPFC by previous researchers. The proposed model divides the UPFC operating modes into four states, namely the UPFC up state, STATCOM state, SSSC state and UPFC down state, in order to improve the accuracy of the model by recognizing the practical operating states of a UPFC. The new model also incorporates an AC flow-based optimal load shedding approach to assess the impact of bus voltages and reactive power flow on UPFC in order to decide appropriate load curtailment in the reliability evaluation process. The performance of the proposed model is verified using a test system, and compared with different reliability models of UPFC. Various operating schemes, such as different placement locations of UPFC, and different capacities of UPFC are used to illustrate the advantages of the developed models, and to examine the impacts of UPFC on the system reliability.
Minimum Distance Warning and Braking System for Vehicles
Authors: Kumar Battula Pranay
Published: June 2021

A vehicle distance measuring safety warning and braking system is disclosed having one or more distance measurement sensors measuring the distance from the driver's vehicle to a second vehicle immediately in front, the minimum distance between the vehicle and any object depends on the speed of the vehicle and here the speed of the vehicle is measured by calculating RPM(revolutions per minute) of wheels, based on the calculated minimum distance the speed of the vehicle is regulated by auto-lever mechanism. A vehicle distance alarm alerts the driver when the distance between the driver's vehicle and the second vehicle is less than a configured minimum distance, indicating an unsafe driving condition. An event record display device displays the time/date or the last twenty occurrences of the distance warning alarm. When an alarm is generated, a throttle set-back actuator operates to gently and automatically slow the car and increase vehicle to vehicle distance. Vehicle brakes may be automatically applied by the system to further slow the vehicle. The vehicle distance measuring safety warning system provides an additional margin of safety for a driver who may be distracted while driving.
Respiratory Diseases Detection using Machine Learning
Authors: Shitole Shubham
Published: June 2021

Prediction of the Respiratory diseases in the earlier stage can be very useful specially to improve the survival rate of that patient. CT scan images are used to detect various lung diseases .These CT scan reports are sent to pathologists for further process. Pathologists analyze CT scan report and predict the infected tissues which are the main cause of the particular disease. This is lengthy process and to avoid this steps and increase the accuracy of the prediction Machine learning plays an important role . The system proposes to build "Predictive Diagnostic System" of infectious lung by using the concept of image processing in conjunction with machine learning. Proposed system will detect the disease from CT scan images and use preprocessing technique that will remove the noise and disturbance in image. Feature extraction process is applied to extract the useful features of underlying image, and feature selection technique will further optimize the top ranking features. CNN algorithm is then applied to classify the images for detection of Respiratory disease. After detection of disease, report will be generated and submitted to patient.
MEMS Technology in Automotive Industry
Authors: . Saida
Published: June 2021

The car business has consistently been a region, where the likelihood to investigate more and to accomplish cutting edge innovation stays a test. As the market is developing, the potential outcomes are being investigated on a more extensive scale. Furthermore, these developing prospects are progressively requesting the exploration for the more exact working of the auto using different sensors and the coordination angles related with them. While improving the quality/execution of the vehicle, the need to diminish the size of sensors consistently stays a test. Throughout the timeframe, the innovation has progressed and these difficulties are taken consideration using MEMS (Micro electro mechanical frameworks) incorporated frameworks. MEMS helps in contriving microscale sensors with higher precision in little size and minimal expense. In the auto, there exists a colossal requirement for these introducing these sensors and using them to refine the exhibition attributes of the vehicles.
Chatbot with Facemask Detection Technique
Authors: Kesa Lavanya
Published: June 2021

Artificial intelligence is now in full swing, and chatbots are just a blip on the radar of a massive wave of advancement. Virtual chatbots that simulate human discussions for performing various tasks are becoming increasingly popular as messengers become more widely used. Some chatbots can schedule medical appointments, order a taxi, transfer money to pals, check into a flight, and perform a variety of other functions. Chatbots assist consumers as well, and they are becoming increasingly interested in this technology. Given the current COVID-19 situation, it's critical to be informed about the growing number of cases and the many precautions that must be followed. This information will be obtained with the assistance of the chatbot. Our chatbot not only converses with users, but it also informs them about Covid-19 and the measures that must be taken. We also understand the importance of wearing masks to prevent the infection from spreading. Using image processing, we will determine if people are wearing their masks or not in this section of our research. To determine if people are wearing a face mask or not, we will develop this section of the project using a simple and basic Convolutional Neural Network (CNN) model, TensorFlow with Keras library, and OpenCV. In this project, we will use a dataset that contains two types of images: images with masks and images without masks. Then, using the webcam on your PC, we'll utilize these images to create a CNN model using TensorFlow to detect if you're wearing a face mask.
Harnessing Maximum Power from PV Module using DC-DC Converter
Authors: Kaliappan Kannan
Published: June 2021

Solar energy is one of the most potent sources of energy. In the wake of depleting fossil fuel energy sources and growing environmental concerns, world is in a relentless drive towards utilizing natural resources like sun efficiently. The aim of the project is to make the solar module work in MPPT mode (Maximum Power Point Tracking) Mode. At this condition, the system is able to extract maximum power from the module without affecting the PV module. MPPT control here is obtained using boost converter. Applying PWM with proper controlling algorithm will vary the duty ratio of the converter such that system will run in MPP mode.
Design, Manufacturing and Analysis of Composite Leaf Spring
Authors: Thorat Vaishnavi S.
Published: June 2021

Now-a-days it is necessary to conserve natural resources, economize energy and weight reduction. Weight reduction of vehicle has become the main issue in Automobile Industries. It can be achieved by introduction of better material, design optimization and better manufacturing process. The Automobile Industry has interest for replacement of Steel Leaf Spring with Composite Leaf Spring. Composite Material has High Strength and Stiffness to Weight Ratio. The Objective is to compare the Stresses, Deformation, Elastic Strain and Weight of Composite Leaf Spring with that of Steel Leaf Spring. The Material Selected is Glass Fibre Reinforced Polymer is used against Conventional Steel. The Leaf Spring was modelled in CATIA and analysis done in ANSYS Software.
Development of a Mobile based Voice Controlled Surveillance Robotic Vehicle
Authors: Kiran Pindi
Published: June 2021

Voice Controlled Robotic Vehicle is an example of controlling the bot with the help of daily used voice commands. An Android app is used for giving input voice commands and in order to control the motion of robotic vehicle. The voice commands given by us is processed by the app and voice module converts speech into text. A controller should be implemented with a Bluetooth module through the UART protocol. The converted text commands reach the controller via Bluetooth. The microcontroller will process this text and take a necessary action to control the motion of the robotic vehicle. The hardware development board used here is Atmega Arduino Board. The software programming part is done in Arduino Ide using Embedded C. The objective of the project described in this paper was to regulate the movement of the robotic vehicle using commands such as Forward, Backward, Left, Right. There is still a plenty of scope for research and development in the project described in this paper. Adding a very small size camera and using http communication protocol we can receive video streaming from the camera which is placed on the robotic vehicle. The Robotic vehicle now can be used for surveillance of terrorist prone areas, suspected areas.
A Weather Forecasting Model using the Data Mining Technique
Authors: Patil Tanvi
Published: June 2021

The weather conditions are changing continuously and the entire world is suffers from the changing Clemet and their side effects. Therefore pattern on changing weather conditions are required to observe. With this aim the proposed work is intended to investigate about the weather condition pattern and their forecasting model. On the other hand data mining technique enables us to analyse the data and extract the valuable patterns from the data. Therefore in order to understand fluctuating patterns of the weather conditions the data mining based predictive model is reported in this work. The proposed data model analyse the historical weather data and identify the significant on the data. These identified patterns from the historical data enable us to approximate the upcoming weather conditions and their outcomes. To design and develop such an accurate data model a number of techniques are reviewed and most promising approaches are collected.
A Survey on Digital Forensic Investigation Practitioners Approach and Challenges
Authors: Jadhav Prof. Sachin Babulal
Published: June 2021

Digital crimes are taking place over the entire world. For any digital crime which commit at any part of world, computer or any electronic devices are used. The devices which are used to commit the crime are useful evidences which must be identified and protected for further use. The crimes involving electronic devices are called as cyber-crime. To investigate such crimes, a scientific procedures needs to be followed. The data collection, analysis, preservation and presentation of digital evidence is must in order investigate the cybercrime. This paper highlights the practices that are used worldwide in the investigation process of cyber-crime. Keywords: Digital Forensics, Analysis, Investigation, models of investigation.
An AI(Artificial Intelligence) based Device for Covid-19 Fever Detection
Authors: Kommu Gangadhara Rao
Published: June 2021

Coronavirus disease (covid-19) is a global pandemic, and every country is actively fighting against the virus. It is an effective way to prevent the spread of the virus in finding the person with abnormal temperature promptly to perform the further medical observation. However, the traditional method of temperature measurement has low efficiency and accuracy. Body temperature acting as important role in medicine, several diseases is characterized by a change in human body temperature. Monitoring body temperature also allows the doctor to track the effectiveness of treatments. But current continuous body temperature measurement system is mainly limited by reaction time, movement noise, and labour requirement. In addition, the traditional contact body temperature measurement has the problem of wasting consumables and causing discomfort. To address the above issues, we present a non contact, automatic system using a single thermal non-contact sensor. The Proposed Covid prevention method scans body temperature through MLX9014 Contactless Temperature Sensor and sends the data to Raspberry pi model 3+ architecture. Our application takes data from MLX9014 and analyzes it to see whether the temperature is greater than 370 Celsius , which then captures the image through pi camera.
A Review on Smart Pendent
Authors: Pashine Deepak A.
Published: June 2021

The world is facing a dangerous pandemic and it is a transmissible virus that infects people who came in contact with the infected person and with the things used by them. Many industries see huge economic losses, and businesses are going ruined. Although, unlock process is started still many industries facing problems due to the increasing rate of Covid positive patients, it is not possible to close working after the detection of individual positive employees. Also, it is difficult to find contacted employees with Covid positive employees. .It became a challenging task to find out how many people came in contact with the infected people. So, to make this process somehow easy we have designed a small device. In this paper, we have described the smart pendent a small device that helps to detect how many people come in contact with the coronavirus infected person. It is a wearable RF device in the form factor of a Pendant, suitable for powering a smart Rf device. An experimental comparison between multistage Cockcroft-Walton and Dickson RF-DC converters shows that the Dickson topology offers higher efficiency at high input power, whereas the Cockcroft- Walton converter performs better for low input power. The pendant can produce up to 23.2 µW at 10.4 m from a commercial isotropic 3 W RF power transmitter.
Graphical User Interface for Shuffling of Sections based on Student Profile
Authors: Ashwitha Kotawar
Published: June 2021

This project GUI for shuffling of sections is done to automate the hectic work of shuffling students into sections has been programed in python using open source module using pandas and tkinter the overall result achieved to this program is that students got shuffled into sections with same ratio of male and female in all section, and average of ranks of students of all sections are similar as to maintain equality and integrity. This program gives a GUI for the administrator to access the file with data of students stored to manipulate that data. In this project we will implement using python programming language .in python, we will use module pandas, TKinter. Pandas to manipulate data of students from an excel file through python program, TKinter is used to add GUI to the program to select the file to be manipulated pandas is a software library written for the python language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time series In particular, it offers data structures and operations for manipulating numerical tables and time series. TKINTER is a software library for creating library for creating GUI using python language.
Simulation and Analysis of Double Pipe Heat Exchanger
Authors: Joshi Nikheel
Published: June 2021

A heat exchanger is a engineering device used for efficient heat transfer from one fluid to another at different temperatures and thermal in contact. Thermal properties of fluids play a significant role in various cooling and heating uses. Traditional fluids are of low thermal conductivity, so researchers are tried to enhance thermal conductivity by adding nano-particles. The model of double pipe heat exchanger was develop by using ANSYS workbench. Al2O3 mixed with water as a base fluid for analyzed their performance in double pipe heat exchanger. Al2O3 is a excellent material for heat transfer enhancement because, it has better physical as well as chemical properties. In this paper, we performed CFD analysis on double pipe heat exchanger using ANSYS FLUENT software by varying the concentrations of nano-particle (0.5%, 1%, 2%) in water. CFD analysis on double pipe heat exchanger by using Al2O3/water (nano-fluid) as cold fluid and water as a hot fluid. It is observed that nano-fluid with 2% concentration having more overall heat transfer coefficient.
Gesture Controlled Robot using Arduino
Authors: Srijith Biyyala
Published: June 2021

A Gesture Controlled Car is a robot that can be controlled with a simple human touch. The user only needs to wear a touch device where the sensor is installed. The sensor will record the movement of the hand in a certain direction that will lead to the movement of the robot in the right places. The robot and the touch device are connected wirelessly with radio waves. The user can communicate with the robot in a very friendly way due to wireless communication. We can control the car using accelerometer sensors that are connected to our hand glove. Sensors are designed to replace the remote control commonly used to drive a car. It will allow the user to control the forward, backward, left and right, while using the same accelerometer sensor to control the car's steering wheel. The movement of the car is controlled by the separation method. The machine involves rotating both front and rear wheels on the left or right side to move the non-clockwise side and another pair around the clock causing the car to rotate with its axis without going forward or backward. The main advantage of this machine is that the car with this method can take sharp turns without difficulty. The design and use of a robotic control arm using a flex sensor is suggested. The robot arm is designed to consist of four moving fingers, each with three connectors, an opposing thumb, a round wrist, and an elbow. The robot arm is designed to mimic the movements of a human hand using a hand glove.
Performance Enhancement of Solar Photovoltaic Cell
Authors: Salot Parshva
Published: June 2021

This paper consists analysis on performance enhancement of solar photovoltaic cell by using reflecting and cooling system. The performance of PV (photovoltaic) module is strongly dependent on its surface temperature and solar radiation strikes on PV panel. It is necessary to study possible way for maintaining the appropriate temperature for solar panels and make system that will help to strikes maximum solar radiation on panel. High solar radiation and ambient temperature lead to an elevated photovoltaic cell operating temperature, which affects its lifespan and power output adversely. To enhance the electrical performance of the PV module we make one system which consists of two mirrors as a reflector placing beside solar panel and cooling system consists of pipe placed on upper area of solar panel. At time of sunrise and sunset low solar radiation is fall on solar panel, so reflecting system increase the intensity of solar radiation fall on solar panel. At noon time or afternoon the temperature of solar panel is increases it will decrease the efficiency of solar panel to minimize that cooling system is introduced that controlled the surface temperature.
Control and Monitoring Vehicle using Arduino and GSM Module
Authors: Rewatkar Dr. Rajendra M.
Published: June 2021

The Black Box control and monitoring system for vehicles concept is derived from the aviation industry, a flight recorder, colloquially known as a black box; although it is now orange-colored for easy search, is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents and incidents. With the advancement in technology and cost coming down, in our project we attempt to build similar device for our cars, not only this device will help us in post-crash analysis but also it will help us in quicker emergency rescue operation. Our research has been targeted towards building an integrated system for emergency rescue services in the event of a road accident. The purpose of the project is to find the accident location using GPS module and to send this location by means of sending a message using GSM module to the pre-coded number. This system is usually placed inside the vehicle. It reduces the time it takes for emergency rescue to arrive at the crash location.
Design and Implementation of an Advanced Home Automation
Authors: Merkhed Sandesh
Published: June 2021

Technology is a never ending process. To be able to design a product using the current technology that will be beneficial to the lives of others is a huge contribution to the community. This paper presents the design and implementation of alexa based home automation system. The design is based on a PIC the home appliances are connected to the input/ output ports of this board via relays. The communication between the alexa and the PIC Controller is wireless. This system is designed to be low cost and scalable allowing variety of devices to be controlled with minimum changes to its core.
Smart Surveillance System using Face Tracking
Authors: Agrawal Priyanka
Published: June 2021

The face is seen as a key component of the human body, and humans utilise it to identify one another. Face detection in video refers to the process of detecting a person's face from a video sequence, while face tracking refers to the process of tracking the person's face throughout the video. Face detection and tracking has become a widely researched issue due to applications such as video surveillance systems and identifying criminal activity. However, working with videos is tough due to problems such as bad illumination, low resolution, and atypical posture, among others. It is critical to produce a fair analysis of various tracking and detection strategies in order to fulfil the goal of video tracking and detection. Closed-circuit television (CCTV) technology had a significant impact on how crimes were investigated and solved. The material used to review crime scenes was CCTV footage. CCTV systems, on the other hand, just offer footage and do not have the ability to analyse it. In this research, we propose a system that can be integrated with the CCTV footage or any other video input like webcam to detect, recognise, and track a person of interest. Our system will follow people as they move through a space and will be able to detect and recognise human faces. It enables video analytics, allowing existing cameras to be combined with a system that will recognise individuals and track their activities over time. It may be used for remote surveillance and can be integrated into video analytics software and CCTV security solutions as a component. It may be used on college campuses, in offices, and in shopping malls, among other places.
How to Choose the Best Architecture Design Pattern
Authors: Gupta Kartik
Published: June 2021

The utilization of engineering and configuration designs affect the quality credits of a framework, and the use of examples rely upon plan settings. There are unpredictable reliant connections between them. In this examination, we investigate how engineers use to design and configuration designs regarding quality credits concerns and plan settings. We extricated design-related posts from Stack Overflow and broke down the engineering conversations. Our examination uncovers what settings and quality ascribe engineers consider when utilizing design examples, and we have recognized new and already obscure connections between these plan components. These discoveries can improve engineers' information when they plan with design designs, quality ascribes, and plan settings.
Forced Induction Technologies in an IC Engine: A Review
Authors: Ahmedi Ranaji Arib Hafiz Ayyub Akbar
Published: June 2021

This study has been undertaken to show the performance enhancement of engines using different Forced induction technologies. Forced induction technology like turbocharging and supercharging can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse emission standards are projected to be far more stringent globally, the use of a Forced induction engine in passenger cars and light-duty trucks has become an inevitable trend within the automotive industry. A turbocharger system can effectively improve the power and torque of an engine, but turbo hysteresis exists. A mechanical supercharging system can boost at low speed, but the efficiency is lower. An electric supercharger can effectively improve the intake air at the early stage of accelerated working conditions, however, an electric supercharger will consume the engine power. The addition of Forced induction technologies to an IC engine helps with the scope of downsizing it. This review brings forward all the aspects of Forced induction technologies
Reduction in Non-Revenue Water in Water Distribution System
Authors: Joshi Gaurav
Published: June 2021

Water is the world’s most critical natural resource. Rapid population growth and economic development have led to higher demand for water worldwide whereas on the supply side, natural sources of water have become less reliable. This demand-supply imbalance in the water sector calls for more innovative water management practices and suitable technologies. Utilities cannot afford the water loss because of poor operation and maintenance of water distribution infrastructure facilities. The terms theft, smuggling and leakages are most common sources of generation of Non- revenue water (NRW). Newspaper articles around the world, particularly in countries experiencing intense drought and water shortages, are highlighting water theft as a growing problem. Analysis of various city development plans in India shows that water leakages, theft and unauthorized water connections gives rise to a high level of unaccounted water. A recent study on Water Governance (2013) reveals that unaccounted water in Delhi amounts to around 50% of the total water pumped into the system, whereas it is 35-40% in Hyderabad and Bengaluru. The World Bank in its report, ‘The Challenge of Reducing Non-Revenue Water in Developing Countries’, reveals that 48 million cubic meters of drinkable water escape daily from official supply networks, which is enough to provide water for 200 million people. The same report on India had clearly highlighted that 40-60% of water in Mumbai is lost through illegal diversion. In This paper we have made an attempt to analyze the current methods, their drawbacks and we have provided solution in the form of software-based approach (using Bentley Watergems) which is more relevant as compared to the current field method.