bluuebunny/crossref_metadata_2025 huggingface dataset:
Исследование влияния ультрамалого потока мышьяка на процессы формирования наноструктур In(As)/GaAs методом капельной эпитаксии
Authors: Балакирев С.В. , Кириченко Д.В. , Черненко Н.Е. , Шандыба Н.А. , Ерёменко М.М. , Солодовник М.С.
Published: June 2022

In this paper, we present the results of studying the influence of arsenic pressure in the range of ultra-low values (10^-7-10^-6 Pa) on the processes of modification of In/GaAs(001) droplets with various initial sizes obtained by droplet epitaxy. We experimentally demonstrate that exposure of droplets to the ultralow arsenic flux makes it possible to reduce the droplet size to subcritical sizes while maintaining the initially specified surface density. The exposure of droplet nanostructures in the arsenic flux can be accompanied only by a decrease in their size, which is more typical for droplets obtained at large amounts of indium deposited material. For droplets with a smaller initial size, the formation of rings along the perimeter of the initial droplets and holes inside the rings is typical along with the droplet reduction. We also reveal that the dependence of the relative volume of droplets subjected to diffusion decay in the arsenic flux becomes more significant with a decrease in their initial size.
Механизм развития импульсного пробоя в полимерных пленках
Authors: Семенов С.Е. , Капралова В.М. , Пахотин В.А. , Сударь Н.Т.
Published: June 2022

We present the results of an experimental study of the pulse electrical strength of polyethylene terephthalate and polypropylene films when they are subjected to a single electric pulse. It has been found that the breakdown of these films is possible both at the front and at the plateau of the pulse, and the probability of breakdown at the front increases with pulse amplitude. We recorded a jump in the durability of the films at the transition from breakdown at the front to breakdown at the pulse plateau.It is shown that the processes that prepare the film electrical breakdown develop faster at the pulsefront than at the plateau. We discuss a possible physical mechanism to explain this effect.
Электрические и магнитные свойства монокристаллов SmSb при низких температурах
Authors: Степанов Н.Н. , Каменская Г.А. , Волков М.П. , Шаренкова Н.В.
Published: June 2022

On SmSb single crystals synthesized from elements, the electrical resistance R and magnetization M were measured as functions of temperature and magnetic field. A large magnetoresistance is observed over the entire temperature range of 2–300 K, increasing significantly with decreasing temperature. The temperature dependence of the magnetization exhibits a singularity at the transition temperature to the antiferromagnetic state TN=2.3 K. At temperatures below 8 K, de Haas-van Alphen oscillations are observed in the M(H) dependences, the frequencies of which do not change upon the transition through TN. Linear extrapolation of the dependence of the Landau indices N on the reciprocal of the magnetic field induction 1/B to zero gives the value N=0.75 at T=2 K, which indicates the presence of the Berry phase and indicates a nontrivial band topology in the SmSb compound.
Влияние поперечных π-π-связей на формирование свойств высокомодульных волокон углеродных нанотрубок
Authors: Козлов Г.В. , Долбин И.В.
Published: June 2022

The theoretical model, treating increasing of elastic modulus of fibers from carbon nanotubes at introduction of transverse --bridging between separate nanotubes in fiber. It has been shown that on elastic modulus of fiber three factors influenced, namely, elastic modulus of starting nanotubes, level of interactions between separate nanotubes in fiber and its aspect ratio, i.e. the ratio of fiber length to its diameter. In transition point of the indicated interactions from repulsion to attraction the elastic modulus of fiber achieves the value of corresponding indicator for separate carbon nanotube and in region of attractive interactions exceeds it. The structure of fibers, characterized by their fractal dimension, is basic factor for stiffness of fibers of carbon nanotubes.
Неаффинные деформации и локальные упругие свойства аморфных наноструктур
Authors: Семенов А.А. , Конюх Д.А. , Бельтюков Я.М.
Published: June 2022

Изучены неаффинные деформации аморфных наноструктур в рамках модели случайных матриц. Вблизи границы между аморфными и кристаллическими твердыми телами неаффинные деформации аморфных твердых тел приводят к образованию приграничной области с измененными эффективными упругими свойствами. Показано, что толщина приграничной области имеет тот же порядок величины, что и масштаб неаффинных деформаций. Ключевые слова: неаффинные деформации, аморфные тела, случайные матрицы.
Фононный cпектр La-=SUB=-2-=/SUB=-Ge-=SUB=-2-=/SUB=-O-=SUB=-7-=/SUB=-: ab initio расчет
Authors: Чернышев В.А. , Петров В.П.
Published: June 2022

Within the framework of the density functional theory ab initio calculation of the crystal structure, phonon spectrum, and elastic properties of lanthanum germanate La2Ge2O7 with a triclinic structure (sp. gr. no. 2) was carried out. The frequencies and types of fundamental modes are determined. From the analysis of the displacement vectors obtained from the calculation, the degree of participation of ions in each mode was determined. The calculations were performed for the first time. Experimental data on the IR and Raman spectra, as well as the elastic constants of La2Ge2O7, are absent in the scientific press. We used the CRYSTAL17 program designed for ab initio calculations of periodic structures within the framework of the MO LCAO approach.
О выводе формулы Беломестных--Теслевой
Authors: Дармаев М.В. , Сангадиев С.Ш. , Машанов А.А. , Ким Т.Б.
Published: June 2022

The Belomestnykh-Tesleva’s formula is interesting in that it establishes an unambiguous relationship between the Poisson’s ratio and the Grüneisen’s parameter. The derivation of this formula from the generally accepted Grüneisen’s equation is discussed. The Belomestnykh-Tesleva’s formula, obtained earlier from other assumptions, is derived using the theory of elasticity and the Leontiev’s equation. For a number of silicate glasses and glassy metaphosphates of alkaline earth metals, the proposed approach finds a fairly satisfactory agreement with the experimental data.
Аномальные структурные трансформации нанопорошков Gd-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-, полученных в режиме горения глицин-нитратным методом
Authors: Шмытько И.М. , Кедров В.В.
Published: June 2022

Исследованы структурные состояния Gd2O3 и Gd2O3 : 2%Eu3+, синтезированные глицин-нитратным методом. В результате такого синтеза кроме известной кубической модификации оксида гадолиния образуются две новые неизвестные ранее фазы. Первая фаза образуется в процессе длительной выдержки при комнатной температуре исходной нанокристаллической кубической структуры, полученной при температуре синтеза 650oC. Вторая фаза имеет орторомбическую сингонию и образуется в процессе или длительного синтеза при температуре 650oC, или кратковременных синтезах при более высокой температуре. Обе фазы при дальнейших высокотемпературных отжигах переходят в традиционную кубическую модификацию. Кроме того, обнаружен эффект структурного заражения, который состоит в том, что при отжигах легированной ионами Eu3+ кубической фазы Gd2O3 в интервале 800-1100oC происходит ее частичный переход в моноклинную фазу, которая исчезает при дальнейшем повышении температуры отжига. Ключевые слова: синтез Gd2O3, глицин-нитратный метод, нанокристаллическое состояние, рентгендифрационные методы исследования, фазовые переходы.
Термоэдс наноразмерных пленок переходных металлов
Authors: Болтаев А.П. , Пудонин Ф.А. , Шерстнев И.А. , Егоров Д.А.
Published: June 2022

We study the thermoelectric coefficient of island transition metal films as a function of temperature and film thickness. We show that the thermoelectric coefficient value is determined by the properties of the film metal element and is different for different metals at dimensionless conductance value g>1 and g<1. The main factor in the behavior difference of the thermoelectric coefficient as a function of temperature is the individual characteristics of the Fermi surface of each metal. Dependence of the thermoelectric coefficient on the film thickness is also determined by the Fermi surface shape change.
Морфологические особенности микро- и нанопористых пленок из серебра и меди, синтезированных методом реакции замещения
Authors: Безруков П.А. , Нащекин А.В. , Никоноров Н.В. , Сидоров А.И.
Published: June 2022

The results of a study of the structural features of thin silver and copper films synthesized by the chemical substitution reaction are presented. Silver films were obtained by immersing copper substrates in a solution of silver nitrate. Copper films were synthesized by immersing iron and tin-plated iron substrates in a copper sulfate solution. The study of the morphology and composition of the synthesized layers was carried out using a scanning electron microscope. It has been shown that metal nanoporous layers up to 1 μm thick are formed on the substrates as early as 2–3 s after the start of the reaction. The layers consist of microcrystalline hexagonal plates and micro- and nanodendrites. As the reaction time increases, the layers become denser. In this case, the minimum pore size is 20 nm. The synthesized nanoporous films can be used for photocatalytic decomposition of water and enhancement of Raman scattering.
Нанокомпозиты на основе термопластичных ароматических полиимидов с наночастицами диоксида церия: диэлектрическая спектроскопия
Authors: Никонорова Н.А. , Кононов А.А. , Кастро Р.А. , Гофман И.В. , Николаева А.Л. , Абалов И.В. , Якиманский А.В. , Баранчиков А.Е. , Иванов В.К.
Published: June 2022

Методом диэлектрической спектроскопии исследована молекулярная подвижность пленок термопластичных ароматических полиимидов и нанокомпозитов на их основе с 3% диоксида церия. Для исходных полиимидов обнаружено три области релаксации дипольной поляризации, γ и β (в стеклообразном состоянии) и α (переход в высокоэластическое состояние). Введение в матричный полиимид 3% диоксида церия приводит к подавлению γ процесса и к появлению в спектрах нанокомпозитов, наряду с β процессом, второго релаксационного процесса β1. Температурные зависимости времени релаксации для γ, β и β1 процессов линейны и отвечают уравнению Аррениуса, а для α процесса криволинейны и описываются уравнением Фогеля-Таммана-Гессе. Дана интерпретация молекулярных механизмов наблюдаемых процессов. Ключевые слова: Полимер-неорганические нанокомпозиты, ароматические полиимиды, наноразмерный диоксид церия, диэлектрические характеристики, температуры переходов, молекулярные механизмы диэлектрических процессов.
Эмиссионные спектры жидкоструйных мишеней гексана C-=SUB=-6-=/SUB=-Н-=SUB=-14-=/SUB=-, дихлорметана CH-=SUB=-2-=/SUB=-Cl-=SUB=-2-=/SUB=-, бромистого метилена CH-=SUB=-3-=/SUB=-Br в диапазоне 4-20 nm при импульсном лазерном возбуждении
Authors: Гусева В.Е. , Нечай А.Н. , Перекалов А.А. , Салащенко Н.Н. , Чхало Н.И.
Published: June 2022

The article discusses the results of studying the emission spectra of liquid hexane C6H14, dichloromethane CH2Cl2, methylene bromide CH3Br upon excitation by pulsed laser radiation. We used a Nd:YAG laser, λ = 1064 nm, τ = 5 ns, Epulse = 0.8 J. The spectral range of 4–20 nm was studied. We used injector with a hole 225 μm in diameter, operating in a pulsed mode to form a liquid-droplet jet. The emission spectra of these liquid-jet targets were obtained. The obtained spectra were decoded, and the ions emitting in this spectral range were determined
Применение релятивистской функции локализации электронов для изучения электронной структуры сверхтяжелых элементов
Authors: Тупицын И.И. , Кайгородов М.Ю. , Глазов Д.А. , Рыжков А.М. , Усов Д.П. , Шабаев В.М.
Published: June 2022

Получена формула для вычисления релятивистской функции локализации электронов (relativistic electron localization function, RELF) в рамках метода Дирака-Фока. Применен подход, аналогичный использованному ранее в работе [A.D. Becke and K.E. Edgecombe, The Journal of Chemical Physics 92, 5397 (1990)] при выводе выражения для нерелятивистской функции локализации электронов (electron localization function, ELF). Продемонстрировано, что выражение для RELF отличается от выражения для ELF с заменой нерелятивистской электронной плотности на ее релятивистский аналог. Выполнены релятивистские расчеты ELF и RELF для ряда сверхтяжелых элементов, проведено сравнение полученных результатов. На нескольких примерах показано, что значение ELF, равное 0.5, не обязательно соответствует плотности распределения однородного электронного газа. Ключевые слова: релятивистская функция локализации электронов, метод Дирака-Фока, сверхтяжелые элементы, электронный газ.
Фокусирующая дифракционная оптика для орбитальных телескопов
Authors: Лидер В.В.
Published: June 2022

Обзор посвящен принципам, современному состоянию и проблемам дифракционной оптики, используемой для фокусировки рентгеновского и гамма-излучения в телескопах на орбитальных станциях. Рассмотрены различные многослойные структуры для телескопов нормального падения, суперзеркала для оптики Вольтера, линза Лауэ как концентратор мягкого гамма-излучения, а также модифицированные зонные пластинки Френеля для фокусировки излучения в широком диапазоне энергии с беспрецедентно высоким угловым разрешением (10-1-10-3''). Ключевые слова: рентгеновское и гамма-излучение, рентгеновские и гамма-телескопы, дифракция, многослойные структуры, линза Лауэ, зонные пластинки Френеля.
Генерация второй гармоники в поверхностном слое диэлектрической сфероидальной частицы: II. Анализ решения
Authors: Шамына А.А. , Капшай В.Н. , Толкачев А.И.
Published: June 2022

The vectors used in the solution of the problem of second-harmonic generation in the surface layer of a dielectric spheroidal particle are explicitly expressed in terms of the basis vectors of the spherical, cylindrical, and Cartesian coordinate systems. Three-dimensional directivity patterns characterizing the spatial distribution of the generated radiation in the far-field region and its polarization are constructed. It is found that for a small size of a spheroidal particle, the directivity pattern due to each of the non-chiral components of the nonlinear dielectric susceptibility tensor has its own individual shape. A proportional increase in the linear dimensions of the particle leads to separation of several directions of predominant radiation with a high directivity in the directivity pattern. If the exciting radiation has a linear polarization, then the generated radiation due to one (any) of the independent components of the tensor is also linearly polarized. Mathematical properties characterizing the spatial distribution of the generated radiation in the far-field region and properties associated with the change of problem parameters are found for the functions used in the solution. A relationship between the symmetries of the directivity patterns of doubled-frequency radiation and the indicated properties is revealed. The conditions under which the generation of radiation does not occur and the conditions under which the generated radiation has a linear polarization are found. The above conditions are related to the features of the spatial distribution of the generated radiation and its polarization, illustrated in the directivity patterns. Methods for estimating the independent components of the nonlinear dielectric susceptibility tensor using these conditions are proposed.
Рентгенография характеристическим излучением лазерной плазмы неодномерно сжимающейся ЛТС-мишени
Authors: Андреев А.А. , Беспалов Д.С. , Платонов К.Ю. , Седов М.В.
Published: June 2022

Рассмотрена схема и определены параметры многоимпульсного рентгеновского источника для получения изображений сжатого состояния первичной лазерной термоядерной мишени. В качестве примера источника рассмотрено характеристическое излучение железной вторичной мишени с фокусировкой на нее нескольких пикосекундных лазерных импульсов субрелятивистской интенсивности. Предлагаемая методика позволяет по результатам рентгенографии сжатой термоядерной мишени установить относительную крупномасштабную неоднородность энерговыделения лазерных пучков, облучивших термоядерную мишень, и оценить снижение нейтронного выхода, вызванного асимметрией сжатой мишени. Ключевые слова: пикосекундная лазерная плазма, характеристическое рентгеновское излучение, мишень в лазерном термоядерном синтезе, железная вторичная мишень, просветка.
The Classification of Abnormal Hand Movement to Aid in Autism Detection: Machine Learning Study
Authors: Lakkapragada Anish , Kline Aaron , Mutlu Onur Cezmi , Paskov Kelley , Chrisman Brianna , Stockham Nathaniel , Washington Peter , Wall Dennis Paul
Published: June 2022

Background

A formal autism diagnosis can be an inefficient and lengthy process. Families may wait several months or longer before receiving a diagnosis for their child despite evidence that earlier intervention leads to better treatment outcomes. Digital technologies that detect the presence of behaviors related to autism can scale access to pediatric diagnoses. A strong indicator of the presence of autism is self-stimulatory behaviors such as hand flapping.

Objective

This study aims to demonstrate the feasibility of deep learning technologies for the detection of hand flapping from unstructured home videos as a first step toward validation of whether statistical models coupled with digital technologies can be leveraged to aid in the automatic behavioral analysis of autism. To support the widespread sharing of such home videos, we explored privacy-preserving modifications to the input space via conversion of each video to hand landmark coordinates and measured the performance of corresponding time series classifiers.

Methods

We used the Self-Stimulatory Behavior Dataset (SSBD) that contains 75 videos of hand flapping, head banging, and spinning exhibited by children. From this data set, we extracted 100 hand flapping videos and 100 control videos, each between 2 to 5 seconds in duration. We evaluated five separate feature representations: four privacy-preserved subsets of hand landmarks detected by MediaPipe and one feature representation obtained from the output of the penultimate layer of a MobileNetV2 model fine-tuned on the SSBD. We fed these feature vectors into a long short-term memory network that predicted the presence of hand flapping in each video clip.

Results

The highest-performing model used MobileNetV2 to extract features and achieved a test F1 score of 84 (SD 3.7; precision 89.6, SD 4.3 and recall 80.4, SD 6) using 5-fold cross-validation for 100 random seeds on the SSBD data (500 total distinct folds). Of the models we trained on privacy-preserved data, the model trained with all hand landmarks reached an F1 score of 66.6 (SD 3.35). Another such model trained with a select 6 landmarks reached an F1 score of 68.3 (SD 3.6). A privacy-preserved model trained using a single landmark at the base of the hands and a model trained with the average of the locations of all the hand landmarks reached an F1 score of 64.9 (SD 6.5) and 64.2 (SD 6.8), respectively.

Conclusions

We created five lightweight neural networks that can detect hand flapping from unstructured videos. Training a long short-term memory network with convolutional feature vectors outperformed training with feature vectors of hand coordinates and used almost 900,000 fewer model parameters. This study provides the first step toward developing precise deep learning methods for activity detection of autism-related behaviors.
The Future of the Literary Text in the Posthuman Condition
Authors: Mishra Dr. Samita
Published: June 2022

Posthuman” does not mean after human or beyond human. It is only a reconfiguration of what it means to be human in the rapidly changing technological scenario. Though the Enlightenment concept of the human as autonomous, as a rational creature who by the use of the faculty of reason, can give any shape to the self as s/he wishes, has been discredited by Darwin’s theory of evolution, Marx’s dialectical materialism, and Freud’s psychoanalysis, yet the biological and the technological world had not infringed upon the human, thereby reducing all claims of autonomy to sarcasm, as they do in the present era. The posthuman denotes, Cary Wolfe says, “the embodiment and embeddedness of the human being is not just its biological but also its technological world (Qtd Seldon etal 284). N. Katherine Haylesin How We Became Posthuman: Virtual Bodie in Cybernetics, Literature and Informatics (1999) contends that normal human beings become post-human by using prosthetic body parts adopting computer technologies. Donna Haraway has indeed conceived of the humans as cyborgs who are part human and part machine, the machine being a prosthetic extension of the human. In this age of Information Technology and social media, a natural corollary of the posthuman condition is Digital Humanities: This essay explores how the post human condition and digital humanities impact the interactive composition and interpretation of the literary text.
Tabish Khair’s The Thing About Thugs: Approaching a Postcolonial Study from the Perspective of Oriental Phobia
Authors: Jahan Dr. Farhin
Published: June 2022

The ideas of civilized versus uncivilized or west versus non-west, created with the aid of using the European Enlightenment, had been recognized, elevated and remodeled with the enlargement of European colonialism. Stereotypes of outsiders had been generated with the aid of using the colonial establishments of European nations and a few traits inclusive of laziness, aggression, violence, greed, sexual promiscuity, bestiality, primitivism, innocence and irrationality had been thrown at those businesses termed as ‘others.’ Postcolonialism, with the aid of using the tough colonial manner of wondering and writing literary works, attempts to head past the binaries of the colonizer or the colonized. It tries to reconstruct, reshape and redefine the colonized ‘self.’ Some of the postcolonial theorists bear in mind the colonized because of the colonial differences. Tabish Khair, one of the most important new writers in the Indian subcontinent, specializes in the topics associated with otherness, identification and discontent in colonized cultures. This paper, with the assistance of postcolonial and mental research of the colonized immigrants and their discontent, tries to investigate the ideas of oriental phobia in Tabish Khair’s novel, The Thing About Thugs (2010). It additionally attempts to discover the theoretical and narrative reflections of postcolonialism inside the novel.
SEVEN ARGUMENTS AGAINST STARTING WARFARIN ON THE FIRST DAY OF PULMONARY THROMBOEMBOLISM
Authors: Koraćević Goran P. , Zdravković Miloš
Published: June 2022

The aim is to analyze how the advances in pulmonary thromboembolism (PTE) may influence its therapeutic protocol, focusing on the anti-vitamin K (AVK) start. Narrative review (analyzing the most important Guidelines) was used for the synthesis of the improved approach regarding the time to start AVK in PTE. For PTE, it is crucial to instantly provide an optimal anticoagulant effect of both unfractionated heparin and AVK, a difficult task indeed. By delaying AVK we may avoid the AVK use (and thus the overlap); instead, following a parenteral anticoagulant, we may proceed with direct oral anticoagulant-DOAC (if the escalation therapy is not needed). There are seven new important arguments to postpone AVK commencement from the first day of PTE treatment (although recommended in contemporary guidelines for PTE patients who are not planned for thrombolysis). A more appropriate time to start the oral anticoagulant (preferably-DOAC) is when PTE comes under control and the need for escalation of fibirinolytic treatment is gone.
ORIGIN OF THE LEFT VERTEBRAL ARTERY FROM IPSILATERAL COMMON CAROTID ARTERY IN A HUMAN FETUS: CASE REPORT AND BRIEF REVIEW OF THE LITERATURE
Authors: Trandafilović Milena , Vasović Ljiljana
Published: June 2022

Although the vertebral artery (VA) is a type of artery with a lot of variations, its origin from the common carotid artery (CCA) is one of the rarities that deserves to be presented.Microdissection of injected arteries in the thorax and neck of human fetuses under the operating microscope was used and documented in the workbook and photos. The origin of the left VA from ipsilateral CCA, and its entry into the transverse foramen of the fourth cervical vertebra (C IV), associated with the normal vascular arrangement of branches of the aortic arch were the main features of this case. Simultaneously, the right VA of normal (subclavian) origin entered the C V transverse foramen. A present case of the left VA−CCA variant is the only one discovered in human fetuses, respectively, in total it is the tenth human case in the literature. However, the future findings could show whether the right aortic arch and the carotid stenosis discovered in half of known adult cases can be possible causal and/or consequent abnormalities of the left VA−CCA variant.
THE IMPACT OF THE COVID-19 PANDEMIC ON PEDIATRIC APPENDICITIS MANAGEMENT AND OUTCOMES
Authors: Zečević Maja , Marjanović Zoran , Janković Goran , Djerić Danijela , Jovanović Zorica , Marjanović Vesna , Lilić Jelena , Mančić Danijel , Lazarević Dragana
Published: June 2022

The pandemic caused by the SARS-CoV-2 virus had a significant impact on providing health services the world over and is reflected in pediatric surgery also. The aim of this study was to determine the differences in the prevalence of forms of appendicitis among children during and prior to the pandemic, and to compare the demographic characteristics. A retrospective study which covered a period from September 1, 2018 until September 1, 2021 and all the patients who underwent surgery for acute appendicitis was carried out. Demographic and clinical data were collected and analysed. The study included a total of 267 patients. Prior to the pandemic a total of 160 children underwent surgical treatment, 61.9% boys and 38.1% girls, while during the pandemic a total of 107 underwent surgical treatment, mostly boys 68,2%, and to a lesser extent, girls 31.8%. The average age of the patients was 11.0±3.9 years. Even though there is a difference in the number of children who underwent surgical treatment for perforated appendicitis prior to and during the Covid-19 pandemic, 54:44 or 33.8:41.1%, the difference is not statistically significant. During the pandemic, two patients who tested positive for the SARS-CoV-2 virus received surgical treatment for a perforated appendicitis. The Covid-19 pandemic had an impact on the healthcare system worldwide. In most centers for pediatric surgery, there was an increased incidence of perforated appendicitis without significant deviations in the demographic characteristics, which correlates with the results of this study
EFFECTIVENESS OF USING POE-BASED E-MODULES (PREDICT, OBSERVE, EXPLAIN) ON CRITICAL THINKING ABILITY
Authors:   IAIN PALANGKA RAYA, Aulia Maryam , Yuliani Hadma ,   IAIN PALANGKA RAYA, Inayah Syar Nur ,   IAIN PALANGKA RAYA, Azizah Nadia ,   IAIN PALANGKA RAYA
Published: June 2022

Based on the results of observations and interviews at SMAN 5 Palangka Raya, physics learning is still not structured optimally to achieve students' critical thinking skills. As a result, research was undertaken employing POE-based e-modules to aid students in achieving learning competencies by utilizing their critical thinking skills. The goal of this study is to see how successful POE-based e-modules are at improving critical thinking skills. A quantitative approach using a One Group Pretest-Posttest Design was applied. A test in the form of a description question served as the data gathering strategy. The findings revealed that this POE-based e-module was beneficial to students' critical thinking abilities. The e-effectiveness module's was determined using an effect size of 3.24, which falls into the very high category. This study's conclusion is this POE-based e-module improves students' critical thinking skills.
Survey Paper on Communication System Using Blockchain and Cryptography
Authors: Vasekar Prof. Shivaji
Published: June 2022

Abstract: Decentralized application make use of peer-to-peer networks, this ensures that no network failure can occur due to central node failure. Blockchain serves as a ledger which allows messaging to take place in a decentralized manner. Decentralized application for the communication and resource sharing is need in today’s world, where keeping data on a centralized server can be risky and a very expensive experience. With the help of some consensus, we can implement different ways to share resources and communicate. Together with Blockchain and Decentralized Applications, we can create a secure and very reliable messaging application that overcomes the drawbacks of traditional messaging applications. Keywords: Blockchain, Cryptography, Communication System, Secure Hash Algorithm, Encryption and Decryption
A Partial Replacement of Cement and Fine Aggregate with MDP and GGBS
Authors: Shinde Sakshi N.
Published: June 2022

Abstract: Due to rapid development in infrastructure it truns out to be very necessary to find and adopt some eco-friendly products. It is becoming more and more obvious that gradual evolution in the field of construction has adverse effect on the well-beging the earth and putting future generation in danger. concrete could also be used for a few special purpose that special properties are more important than special properties are more important than those commonly considered. The most important objective of this study is to assess the chances of usage of GGBS (Ground Granulated Blast Furnace Slag)in concrete. The enhancement in a technology requires studying effects caused by the mineral admixture on the strength of the cementitious material. This project represents the results of an experiment investigations accomplish of concrete. In this experimental study the impact of GGBS on strength of referral concrete M20 was prepared using 43 Grade OPC and other mixes were prepared by replacing part of OPC with GGBS.The replacement levels were 0%, 20%, 30% and 40% (by weight of cement) for GGBS. And replacing fine aggregate with 0%, 20%, 30% and 40% crusher dust. Keywords: GGBS, admixture, conctete
Impact of Economic Reforms on FDI and GDP After 1991 in the Case of India
Authors: Dattatray Sonawane Ganesh , Asawa Dr. Anurag
Published: June 2022

Abstract: The aim of the present study was to examine the impact of new economic reforms after 1991 on the Indian economy in general, GDP1 growth rate and FDI2 inflow. The Economic and political policy intervention were reflected on the economic development of the countries with respect to improving considerable growth rate in GDP and FDI. Specifically in the Indian context, the economic decisions have been a considerable influence on the inclusive growth rate of the nation as well as standard of living. It is evidence that India started the economic reform in 1991, after the crisis of balance of payment3 (BOP). After that the government initiated economic reforms basically to provide an environment of sustainable growth rate and stability. During the reform period, a considerable number of policies were introduced. After that the government of India has introduced three key policies which are liberalization, privatization, globalization (LPG). This study, with the help of secondary data, shows that after the reforms, the economy’s growth rate started increasing positively and stable. Keywords: Economic reforms, Foreign Direct Investment (FDI), Gross Domestic Product (GDP), Economic growth, Growth rate of India, India after 1991, etc.
Green Synthesis of Iron Oxide Nanoparticles Using Simarouba Glauca Leaf Extract and Application in Textile Effluent Treatment
Authors: T R Juby , S Saniya , V Hariharan , J Sreejith
Published: June 2022

Abstract: In this study the iron oxide nanoparticles were synthesized by using with “Simarouba glauca” leaf extract, used for the treatment of textile effluent. The ability of Iron oxide NPs act as photo catalysts in dye degradation of organic pollutants. The crystalline nature and purity of synthesized nanoparticles were characterized by XRD, SEM, FTIR and UV-Visible spectrophotometer. The XRD pattern of the distinct peak of Fe₂O₃ was found at 33.47 (2θ). The SEM images demonstrated that the size of the nanoparticles was the range from 70-122nm. FTIR spectrum of Fe₂O₃ showed the presence of polyphenol shows its highest frequency at 447.49cmˉ¹. UV-Visible spectrum of the absorption peak of 352 nm demonstrated the iron oxide nanoparticles. The photocatalytic activity of the iron oxide nanoparticles synthesized using Simaurauba glauca aqueous leaf extract was studied by the decolorization of textile effluent. Keywords; Green synthesis, iron oxide nanoparticles, X-Ray diffraction analysis, FTIR spectra, UV-Visible spectrometer, Textile effluent treatment.
Efficient Model to Predict the Traffic Congestion through Deep Learning
Authors: Shelke Hrushikesh , Pawar Akshay , Lokhande Vivek , Solanke Mahesh , Ghodke Prof. Tanvi
Published: June 2022

Abstract: Traffic in urban centers has considered a worsening issue across the world, impacting development and people's daily lives. It also occurs in large and medium regions of India, posing a serious threat to the country's progress. Humans could gain knowledge from the administration and management of urban vehicular networks that road congestion can be ameliorated or diminished if we can anticipate road congestion which will occur within few moments or has already occurred in a few seconds and implement prompt, adequate traffic abatement methodologies. As a consequence, traffic congestion prediction is crucial for improving the transportation system's energy consumption and dependability. A variety of strategies to this problem have been investigated and discussed in this research article for this goal. This has enabled the successful implementation of our solution for a traffic congestion prediction system based on Artificial Neural Networks and Decision Making. The result analysis has been crucial in the realization of the improved accuracy of the prescribed approach. Keywords: Artificial Neural Network, Deep learning, Traffic Congestion prediction ,Preprocessing , Segarigation
A Literature Review on Beam Column Joints with Different Loading Condition and Methods of Strengthening
Authors: Kotwal Satish S. , Kadam Vidyanand S. , More Mayur M. , Patil Ananda S , Mohite Nitish A
Published: June 2022

Abstract: The beam–column joint is measured as the most important zone in a reinforced concrete moment resisting frame. It is subjected to large forces during earthquake and its behaviour has a major influence on the response of the entire structure. As a result, a great attention has to be paid for good detailing of such joint. The absence of transverse reinforcement in the joint, insufficient development length for the beam reinforcement and the inadequately spliced reinforcement for the column just above the joint can be considered as the most important causes for the failure of the beam–column joint under any unexpected transverse loading on the building. The recent earthquakes revealed the importance of the design of reinforced concrete (RC) structures with ductile behaviour. Ductility can be described as the ability of reinforced concrete cross sections, elements and structures to absorb the large energy released during earthquakes without losing their strength under large amplitude and reversible deformations.
Developing a Reliable Service System for Charity Donation
Authors: Modi Vishakha , Kawale Prof. R. M. , Salunkhe Swapnali , Pawar Sakshi
Published: June 2022

Abstract: Zeroing in on the covering spaces of the co-ordinations business with countless mature blockchain applications and the public government assistance industry that requires high straightforwardness and believability, this paper plans and carries out an inventive charity co-ordinations stage dependent on blockchain innovation through the ethereal stage. Our foundation utilizes the open, straightforward, and unavoidable elements of the blockchain, joined with a one of a kind Responsibility Relay System and Evaluation and Reporting Mechanism, and can accomplish the consistency of the information on the chain with true status, just as the credibility and straightforwardness of magnanimity co-ordinations information. This paper likewise sets up a model for assessing magnanimity material gifts for social government assistance dependent on the exemplary organization's most extreme stream calculation. Following four months of observational investigation, we have inferred that the blockchain stage can enormously expand the client’s confidence in the venture, upgrade the framework’s neatness coefficient and increment the nature of generously raised materials, consequently working on the public government assistance of beneficent gifts. The paper reaches the inference that this blockchain stage is a specialized answer for augmenting social government assistance. Keywords: Data Security, Smart Contract, Charity Application, Algorithm AES, Blockchain technology.
Seismic Analysis of Irregular Reinforced Concrete Building Considering Soil Structure Interaction
Authors: Vishwakarma Digvijay , Golghate Kavita
Published: June 2022

Abstract: According to several studies on past earthquakes, Dynamic loading influences the seismic reaction of buildings. Sudden distress and failures in structures have been seen as a result of soil-structure interaction. Soil-structure interaction increases shear stresses in the structure's bottom storeys, making it less rigid and increasing lateral displacements such as storey drift, inter-storey drift, and roof displacements. Increased lateral displacements in high-rise buildings cause occupant discomfort. The interaction between soil and structure lengthens the building's natural time period. Three modelling approaches, fix foundation building, medium stiff base building, and low stiff base building, have been investigated and analysed using SAP2000 V14, taking into account soil-structure interaction (SSI). The results can be used to build a detailed performance-based seismic design approach that considers the influence of soil structure interaction. Keywords: Seismic Analysis, Soil Structure Interaction, Seismic Response, SAP2000
Carbon Emission and Battery Monitoring System
Authors: Gulappagol Dr. Laxmi , Shenoy Deeksha D , Bhoomika K V , Shetty Karishma , R Keerthana
Published: June 2022

Abstract: Automobile exhaust gases are one of the most significant sources of carbon dioxide. Carbon monoxide from the exhaust system can seep into the vehicle through holes. Carbon dioxide poisoning can be lethal if inhaled at a specific dosage and for a long time. To ensure that the level of carbon dioxide in the vehicle is safe, the air quality must be monitored. Our goal is to create a project that focuses on vehicle carbon monoxide monitoring, alerting, and control. The carbon monoxide level in the vehicle is detected by the system. The collected sensor data will be stored in a database. The technology allows the user to keep track of carbon dioxide levels and vehicle battery discharge. The user can also be notified when carbon dioxide levels are dangerously high. When the battery level drops due to infrequent use of the vehicle, the system can provide effective notification about the battery discharge levels. The device is affordable and simple to install in the vehicle. Keywords: Monitoring, Emission, Carbon, Battery, IOT, EV, Hybrid vehicle
Traffic Sign Board Detection Using Single Shot Detection (SSD)
Authors: Paavani R. Krishna , Indraja V. , Neelimajyothi V. , Sai S. , Sriramulu Mr. M.
Published: June 2022

Abstract: Traffic sign board detection (TSBD) is a significant portion of intelligent transportation system (ITS). Being able to identify traffic signals more accurately and effectively can improve safe driving .Due to increase in technology there are autonomous vehicles . The traffic sign recognition process includes two parts: detection and classification. In this paper, we use an object detection algorithm called SSD to detect the traffic signs. This convolutional neural network uses multiple feature maps to detect objects. For the traffic sign is very small to the whole picture, the SSD model has been improved to have a better detection result of traffic signs. In the experiments, the model has been simplified and the size of the prior box has been modified. The improved network has a good detection effect on small targets. The results on the test data set show that the proposed algorithm performs well for single-target, multi-target and dark-light images. The precision and recall on the test data set are 91.09%, and 88.06%. Keywords: Automatic traffic sign board Detection, SSD, Image processing, Text alert.
Efficient Deep CNN-Based Fire Detection and Localization in Video Surveillance
Authors: Khadse Prof. Manisha
Published: June 2022

Abstract: Accidents caused by undiscovered fires have cost the globe a lot of money. The demand for effective fire detection systems is on the rise. Because of the system's inefficiency, existing fire and smoke detectors are failing. Analyzing live camera data allows for real-time fire detection. The fire flame features are investigated, and the fire is recognized using edge detection and thresholding methods, resulting in the creation of a fire detected model. It detects hazardous fires identified on the size, velocity, volume and the texture. In this paper we are proposing an emerging fire detection system based on Convolutional Neural Network. The model's experimental results on our dataset reveal that it has good fire detection capability and ability of detecting multi-scale fire in real-time. Keywords: Video Surveillance, Segmentation, Classification, Neural Network, Deep Learning, Object Detection.
Study on Google Glasses
Authors: Chauhan Pradip Munnalal
Published: June 2022

Abstract: Google Glass is an application of a small system that can beware of your eyes and do some of your daily life tasks easily and with hand-free commands. This paper presents a systematic review of google glass and its application. The paper is divided into 3 parts Current system, issue with the current system, the new system Keywords: Google Glass, Homework Helper, Body Scan, OCR scan
Emotion Recognition
Authors: Srivastava Anurag , Chauhan Hemant Singh , Singh Abhishek Kumar , Khan Albasit , Singh Dr. H. R.
Published: June 2022

Abstract: In this project emotion detection using its facial expressions are going to be detected. These expressions are often derived from the live feed via system’s camera or any pre-existing image available within the memory. Emotions possessed by humans will be recognized and contains a vast scope of study within the computer vision industry upon which several research have already been done. The work has been implemented using Python (3.10), Open-Source Computer Vision Library (OpenCV) and NumPy. The run time video (testing dataset) is being compared to training dataset and thus emotion is predicted. the target of this paper is to develop a system which might analyze the image and run time video and predict the expression of the person. The study proves that this procedure is workable and produces valid results.in this project we've got make change to the accuracy of the running project by using the various models of python and deep learning. Keywords: Face Recognition, Image Processing, Computer Vision, Emotion Detection, OpenCV, numpy, mobilenet version
Dementia Disease Prediction By Using Internet of Things and Nodejs
Authors: Abirami Mrs. S. , K Arunkumar , S Pragathishwaran , S Sarath
Published: June 2022

Abstract: Dementia is not a single disease; it’s an overall term like heart disease that covers a wide range of specific medical conditions, including Alzheimer’s disease. Disorders grouped under the general term “dementia” are caused by abnormal brain changes. These changes trigger a decline in thinking skills, also known as cognitive abilities, severe enough to impair daily life and independent function. They also affect behaviour, feelings and relationships. Alzheimer's disease accounts for 60 to 80 percent of cases. Vascular dementia, which occurs because of microscopic bleeding and blood vessel blockage in the brain, is the second most common cause of dementia. In order to overcome this problems and provide proper treatment to theelder people our project aims at developing an application for elderly age people dementia prediction where I can lively monitor the blood glucose, blood pressure, blood oxidation level which is measured using the sensors and if the condition is abnormal the SMS API will send a message to a mobile phone of the care taker or the old age home in-charge. The web application developed in this project displays the three parameters to the user on a computer that can be lively monitored using IoT. An efficient real time microcontroller is used to process the information and a Wi-Fi gateway is used to transmit the data wirelessly. Thus this project helps in taking care of the elder people at the right time and avoid difficulties. Keywords: MQTT protocol, Publishing, Subscribing, Web application module.
Behaviour of Sulfate Infected BC Soil with the Addition of Lime Stone Powder and Different Fibres
Authors: B Kashinath , Krishnaiah Dr. S. , Prakash Dr. K B
Published: June 2022

Abstract: The stress resistant properties of soils can be improved in a variety of ways. For example, sheets, strips or rods of metal or polymeric materials can be placed in the soil to create a composite material. Researchers believe that there is a great potential of combined usage of monofibres and hybrid fibers as a stabilization materials in sulphate infected black cotton soil mix, making it stronger and durable. But not much progress has been made in this regard. The main objective of this research work is to investigate the index properties and stress resistant properties by adding stabilization materials like, lime stone powder along with monofibres and hybrid fibres. The research is proposed to address the following problems. 1. Effect of replacement of sulphate infected BC soil by stabilization material such as lime stone powder (LSP) in different percentages like 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35% and 40% and thereby determining the optimum dosage of stabilization materials. 2. Effect of addition of different monofibres such as Jute fibre (JF), Poly propylene fibre (PPF), Waste plastic fibre (WPF) and High density polyethelene fibre (HDPEF) on the properties of sulphate infected BC soils. 3. Effect of addition of different hybrid fibres such as (JF+WPF), (PPF+WPF) and (PPF+HDPEF) on the properties of sulphate infected BC soils. It is observed that the sulphate infected black cotton soil using lime stone powder as stabilization material has shown improved index properties at 15% replacement level. Unsoaked CBR value, soaked CBR value, cohesion value from direct shear test and UCC test cohesion value, all show an increasing trend upto 15% replacement of black cotton soil by lime stone powder. After 15% replacement level, all the above values go on decreasing. It is observed that the sulphate infected black cotton soil using lime stone powder as stabilization material along with monofibres has shown improved stress resistance properties when monofibres are added at 1.5% by volume fraction. From the results obtained, it may also be concluded that, the performance of HDPE fibres is better than polypropylene fibres, waste plastic fibres and jute fibres in enhancing the stress resistance properties of sulphate infected black cotton soil using lime stone powder as stabilization material. Keywords: Lime stone powder, Polypropylene fibres, Sulfate infected BC soil, Stabilization, Stress resistant