bluuebunny/crossref_metadata_2025 huggingface dataset:
Выбор оптимальной структуры фоточувствительной гибридной сборки на
охлаждаемом пьедестале криостата
Authors: Загубисало П.С. , Новоселов А.Р.
Published: September 2021

Проведено сравнение известных способов фиксации фоточувствительной гибридной сборки на
охлаждаемом пьедестале криостата. Оно осуществлялось на модели сборки, состоящей из пластин:
GaAs / In / Si / GaAs (опциональный компенсационный слой). Способы фиксации: закрепление сборки,
позволяющее свободно изгибаться при охлаждении, жесткое крепление сборки на сапфировом растре
со стороны кремниевой микросхемы. Варьирование толщин в рамках сравниваемых способов
фиксации, позволило выбрать оптимальную конструкцию крепления гибридной сборки в охлаждаемом
криостате. Исследование проводилось с помощью радиально-симметричной модели, в которой
напряжения при охлаждении моделировались методом конечных элементов. Диаметр всех слоёв
равнялся 10 мм. Толщины слоёв GaAs и кремния варьировались от 50 мкм до 700 мкм,
компенсационного слоя GaAs – от 0 мкм до 700 мкм. Толщина слоя сапфира бралась много больше
исследованных толщин GaAs и кремния.
Применение теплой апертурной диафрагмы в охлаждаемых малоформатных
матричных фотоприёмниках
Authors: Добровольский П.П. , Кремис И.И. , Хрящев С.В.
Published: September 2021

Численным моделированием и экспериментально исследованы конструкции теплой
(неохлаждаемой) апертурной диафрагмы в газонаполненном криостате с матричным фотоприёмником
(МФ), чувствительным в инфракрасном спектральном диапазоне. Показано, что при применении
выбранной конструкции теплой апертурной диафрагмы, матричный фотоприёмник форматом 384х288
пикселей охлаждается жидким азотом до рабочих температур (85 К) за время менее чем 40 сек., а
дроссельным микроохладителем -за 15 сек. с сохранением стандартной чувствительности
фотоприёмников на основе структур кадмий-ртуть-теллур (КРТ).
Исследования энергетического спектра квазидвумерных структур HgTe/CdHgTe
магнитотранспортными методами
Authors: Якунин М.В. , Подгорных С.М. , Суслов А.В.
Published: September 2021

Представлены результаты исследований специфики энергетического спектра гетероструктур
на основе HgTe, характеризуемого инверсным расположением зон, образованных s-орбиталями
(состояния типа E), и зон, сформированной p-орбиталями (состояния типа H), при толщинах слоев
HgTe, близких к критической величине в 6.3 нм, и более.
Şer' Naslar Karşısında İçtihadın İmkânı “Mevrid-i Nasta İctihada Mesağ Yoktur” Kaidesi*
Authors: Orhan Fatih
Published: September 2021

Müçtehidin sınırlı sayıdaki nasları kullanarak sınırsız olaylara cevap verebilmesi ancak naslar üzerinde yapacağı içtihat ile mümkündür. Bu nedenle içtihadın ilgi alanını şer‘î naslar oluşturur. Fakat naslar üzerinde yapılacak bu içtihat faaliyeti mutlak ve sınırsız değildir. Usûlcüler, içtihat sürecinde karşılaşılabilecek aşırılık ve keyfiliğin önüne geçmek, güvenirlilik ve tutarlılığı temin etmek adına içtihat ameliyesine ilişkin bazı kurallar ve sınırlamalar getirmişlerdir. Bu sınırlamalardan birisi de Mecelle’de yer alan “Mevrid-i Nasta İctihada Mesağ Yoktur” kaidesidir. Her ne kadar söz konusu kaide, nassın varid olduğu her konuda içtihada mahal bulunmadığını, mutlak bir tarzda ifade ediyor olsa da fıkhî gelenekte nas etrafında farklı düzey ve şekillerde içtihatlar yapıla gelmiştir. Pek tabidir ki bu durum kaidenin zahir anlamı ile pratik arasındaki sanki bir tezat olduğu vehmini akla getirebilir. Şayet böyle bir yanılgıya düşülecek olursa bu, nas ve içtihat kavramlarının kapsam ve mahiyetinin doğru tespit edilememesinden kaynaklıdır. Bu araştırma söz konusu kaide ile içtihat pratiği arasında bir tezat olmadığı ilkesinden hareketle nas karşısında içtihadın imkân ve sınırlarını tespit etmeyi amaçlamaktadır
İbn Hacer el-Heytemî'ye (Ö. 974/1567) Nispet Edilen “en-Ni'metü'l-Kübrâ” İle Onun Özgün “en-Ni'metü'l-Kübrâ”sı Üzerine
Authors: Hanek İbrahim
Published: September 2021

Eserlerin araştırılmadan, incelenmeden müelliflere nispeti, böyle kitapların yayımlanması ve ilim camiasına sunulması karşılaşılan mühim sorunlardan biridir. Bunun örneklerinden birisi X/XVI. asrın önemli hadis, fıkıh ve tarih âlimlerinden İbn Hacer el-Heytemî’ye (ö. 974/1567) nispet edilen “en-Ni‘metü’l-kübrâ…” isimli mevlid kitabıdır. Ülkemizde ve bütün İslâm dünyasında tanınan ve mevlid kitabı olarak okunan bu eser, yurt içi ve yurt dışındaki birçok yayınevi tarafından İbn Hacer adına basılmaktadır. Bu çalışmada, söz konusu eserin İbn Hacer’e nispetinin incelenmesinin yanında eserin tanıtımı, yazmaları, çeşitli baskıları ve üzerine yapılan bazı çalışmalar ele alınmaktadır. Bu eserin nispet probleminin yanında ikinci önemli husus onun gölgesinde kalarak bu zamana kadar hak ettiği ilgiyi göremeyerek yayımına bile teveccüh edilemeyen İbn Hacer’in orijinal “en-Ni‘metü’l-kübrâ” isimli mevlid kitabının tespit edilmesi ve tanıtılmasıdır. Bununla birlikte mevlid kitabı olarak sadece mezkûr eseri te’lîf eden İbn Hacer’in, bu eserinin ilk dönemlerden itibaren farklı isimlerle anılması ve daha başka nedenlerden dolayı muhtelif pek çok mevlid kitabı te’lîf ettiğiyle ilgili yanlış ve oldukça yaygın kanaat de burada sorgulanmaya çalışılacaktır. Hatta bu yaygın kanaat bir anonim eser hüviyetinde olan ve asırlardır kullanılagelen en-Ni‘metü’l-kübrâ’nın ona nispet edilme nedeni olarak düşünülmektedir
Chemical and Mechanical Actions of Drugs Active Group Used in COVID-19 Treatment
Authors: Mohammed Suhayla K. , Taha Mzahim M. , Taha Ekhlass M.
Published: September 2021

With the new global outbreak of the novel COVID-19, control and treatment has become critical. There is no medication proven to be effective for the treatment of severe acute respiratory syndrome which is caused by COVID-19 according to the World Health Organization (WHO) reports. Most studies that have been done on this time are clinical trials. Those studies used several drugs like lopinavir, ritonavir, nebulized alpha-interferon and, aminoquinolines.

The mechanism of action is not well known so far. This review studies the metabolites of the tested drugs with different kinds of the viral membrane which merging proteins based on mechanical criteria.
Evaluation of analgesic and anti-inflammatory activities of Warionia saharae essential oil
Authors: Yakoubi Mimouna , Belboukhari Nasser , Sekkoum Khaled , Bouchekara Mohammed , Aboul-Enein Hassan Y.
Published: September 2021

Warionia saharae Benth & Coss (W.s) (Asteraceae) is a monospecific genus endemic to Algeria and Morocco. Its leaves are used in their traditional medicine, such as gastrointestinal and inflammatory diseases; for instance, rheumatoid arthritis treatment. In this work, our team investigated the anti-inflammatory and analgesic effects of essential oil extracted from the dried upper parts of Warionia saharae based on different standard experimental test models. The analgesic activity was assessed by central and peripheral models, such as “hot plate” and “writhing” tests on Swiss albino mice. The hot plate test used latency measurements to assess acute cutaneous pain sensitivity, as a result; the latency of the hind-paw pain response was by licking and either shaking or jumping, those occurrences were recorded. Writhing test as a chemical method used to induce pain of peripheral origin in mice by injecting acetic acid intraperitoneally (IP). This results in characteristic stretching behavior of the animals (cramps and contortions). The evaluation of the analgesic activity, shows that the essential oil of this plant induces a decrease in the number of abdominal cramps in the contortion test and a maximum inhibition of pain. As for the anti-inflammatory effect, it was studied by the “paw edema” test, a phlogogenic agent (formaldehyde) was used to stimulate inflammation in the paws of mice. Anti-inflammatory properties can be observed by inhibiting this edema compared to the standard drug Diclofenac. In conclusion, Warionia saharae essential oil (75 mg/kg) showed a strong anti-inflammatory and analgesic activities which supports the conventional use of this plant in traditional medicine.
Nuevos datos sobre Chinavia musiva (Berg, 1878) en Chile: Actualización de distribución y problemas de identificación con Halyomorpha halys (Stål, 1855) (Heteroptera: Pentatomidae)
Authors: Faúndez Eduardo I. , Ángel Ninosca A.
Published: September 2021

Se entregan nuevos registros de Chinavia musiva que extiende su distribución en Chile a las regiones de Coquimbo en el norte y Metropolitana de Santiago hacia el sur. Se discuten los problemas de identificación existentes entre esta especie y Halyomorpha halys, y se entrega una clave pictórica para diferenciar ambos taxones.
Apu, a new genus of Euchromiina (Lepidoptera: Erebidae: Arctiinae: Arctiini), and a new species from the montane forests of southeastern Peru
Authors: Grados Juan
Published: September 2021

Based on external morphological characters and the structure of the male genitalia, a new genus of Euchromiina from the Neotropical region, Apu gen. nov. is described. A new species is described, Apu mooreorum sp. nov. and the species Apu flavicornis (Druce) comb. nov. is redescribed. The genus occurs in the montane forests of the Andes. Diagnostic characters are provided for the genus and the two species which comprise it. Photographs of the adults of both species are provided, as well as the morphological characters of the male genitalia.
Dynamic Complexity: Senior Management Skills for the Safety of Present-Day Mining Companies
Authors: Pedrals Jorge
Published: September 2021

Based on the author’s more than 35 years of experience in mining projects and operations’ management – including the expansion of CODELCO’s El Teniente with rock blasting challenges that threatened its continuity – this article introduces a new way of facing safety in today’s companies. The proposal divides the management process into four stages: i) Adequate context diagnostic; ii) How people perceive reality; iii) An action plan; and iv) A focused and goal-oriented organization, where the key is understanding how people learn and interpret the existing reality. Based on these variables, organizations are challenged with developing a capacity to integrate corporate Dynamic Complexity – with “uncertainties” as a key variable – with their environment, both local and global. The proposal includes the Inverted Pyramid of Corporate Responsibility, where the integration capacity to manage communication and outreach processes as part of the company’s continuous development lies in the Board of Directors and the Top Management, thereby allowing the company to correctly address the cultural, professional, and educational diversity of its work teams, facing an increasingly uncertain environment.
Towards autonomous operations in the mining industry: the role of human factors.
Authors: Widzyk-Capehart E. , Zabłocki A.
Published: September 2021

In the past 30 years, Latin American mining industry passed under the sign of technological advances; first with the incorporation of mechanized equipment and then teleoperation and automation in many aspects of the excavation process. In that respect, Chile is the leading country, although lately Peru, Mexico and Brazil are showing a growing interest in introducing new technologies in their mining operations. Positive aspects of these changes can be seen in continuous improvements of operations and processes, increased in innovation and improvements in safety. However, with few exceptions, the involvement of top management in enabling innovation and rapid technological implementation has often been insufficient. This, however, is changing dramatically as mining companies look towards automatization to maximize productivity and profitability, remove mining personnel from dangerous environments as well as bypass human limitations to meet new challenges, which would allow the humans to make strategic decisions while being supported by the machines and the connected environment. This paper examines the human factors issues related to the implementation of automated system in general with some examples from Chilean open pit and underground mines.
Effect of different fiber type on sprayed concrete support capacity
Authors: Alavarado J. M. , Duarte A.
Published: September 2021

Nowadays there are several types of fiber for the reinforcement of the sprayed concrete used in tunnel support; most popular among them are steel fibers and macro synthetic fibers. However, in most cases the assessment of fiber reinforced sprayed concrete ductility is focused on the fulfillment of energy absorption capacity requirements without considering the effect of the reinforcement type on the Load-Displacement behavior. The following study aims to find out if the support capacity provided by each fiber type is the same for similar levels of energy absorption capacity or how it can be affected through the analysis of the load bearing capacity. After the analysis of energy absorption tests according to EFNARC of more than 50 specimens separately reinforced with steel and macro synthetic fibers, it was observed the specimens reinforced with steel fiber absorbed more energy since the beginning of deformation than those reinforced with macro synthetic fibers. In other words, the required work to start deforming the steel fiber reinforced sprayed concrete is greater than the required with the other fiber type. Likewise, the ultimate strength or maximum load bearing capacity provided by steel fibers was higher than the other fiber type. Therefore, the support capacity of the sprayed concrete and the related safety factor provided by each fiber type is different
COMPARATIVE ANALYSIS OF THE EFFICIENCY OF ISLAMIC BANKING IN INDONESIA BEFORE AND DURING COVID-19 PANDEMIC
Authors: Khoirunnisa Safira , Aliludin Arson
Published: September 2021

In 2019, COVID-19 starts to become a global emergence and keeps spreading all over the world. It has begun to enter Indonesia in February 2020 and has developed the social restriction and lockdown policy that leads to the decline in the economy. In contrast, the Islamic banking industry has escalated marginally in the past century. As a business entity, Islamic Banking has to maintain its business performance, one of which is by measuring the efficiency of the bank. The aim of this study is to analyse whether the Islamic Banking industry is disrupted by the occurrence of the COVID-19 pandemic, by measuring the efficiency of Islamic Banking. This study uses the Data Envelopment Analysis method with Variable Return to Scale model in output orientation. The variables used are based on the Intermediation approach which are Third Party Funds with Total Assets for the input, and Financing with Operating Income for the output. The samples are from all of the Islamic Banks in Indonesia in 2019-2021 except PT Bank Net Indonesia Syariah (total of 13). After calculating the efficiency, to see whether there is a difference between the Islamic Banks' efficiency before and during the COVID-19 pandemic, the Kolmogorov-Smirnov and Mann-Whitney U Test are used. The result of this study is that the Islamic banks in Indonesia have not been efficient both before and during the COVID-19 Pandemic, with a score of 68,12% for before and 69,64% for during pandemic. Moreover, the correlation analysis using the Mann-Whitney U test result indicates that the efficiency score before and during the COVID-19 pandemic has no significant difference. Hence, this illustrates that the occurrence of the COVID-19 pandemic didn’t affect the Islamic Banking industry in Indonesia, particularly on their efficiency.
EXPERIMENTATION COLOUR OF GLAZE USING A VARIOUS STONE IN SABAH
Authors: Mohamad Fauzi Nor Asmidayu , Ibrahim Ismail , Arshad Sazmal Effendi
Published: September 2021

Ceramics are the oldest art objects ever produced by humans since prehistoric times. Ceramics are made from clay and will change character when exposed to high temperatures above 1200 degrees celsius. Ceramic product is covered with a layer of glass which is a glaze and has a high resistance to temperature or heat. This research aims to document the production of glaze color systematically using various types of stone in Sabah such as Sungai Moyog stone, Lombong Mamut stone, and stone in Sports Complex, Ranau on the surface of the specimen body produced using by kaolin. In addition, this research also aims to identify the response of experimental samples using a mixture of different percentages using the formula Triaxial Line Blend on the surface of kaolin involving aspects of the material, type of combustion, and decoration techniques. The production of glaze color using natural materials which is a Sungai Moyog stone, Lombong Mamut stone, and Sports Complex stone found around Ranau and Kota Kinabalu, Sabah is an innovation in the production of color sourced from natural materials as well as efforts to develop the ceramic industry in Malaysia. It is more to the production of natural materials that have undergone the production process to produce a new glaze color. Preliminary studies using samples from color agents which are Sungai Moyog stone, Lombong Mamut stone, and Ranau Sports Complex stone were conducted experimentally. The research includes the preparation and formulation of glaze using the material until it successfully produces color pigments according to the temperature reaction and the type of combustion that has been implemented. This research also aims to study the suitability of glaze color on the surface of ceramic products such as kaolin. In conclusion, through this research, we will better understand the processes and ways how to produce glaze color in the ceramic industry by using natural materials found in the environment. Through this research as well, it is possible to identify the minerals present in the experimental materials that influence the reaction in the production of ceramic glaze color.
Mapeamento de abelhas-sem-ferrão em uma Área de Preservação Permanente do Sul do Brasil
Authors: Antonietti Anderson José , Sedrez Mário Cesar
Published: September 2021

Diversos cientistas ao redor do mundo têm alertado sobre a diminuição das populações de abelhas devido às ações antrópicas, como o desmatamento e o uso de agrotóxicos. Preocupados com essa realidade local e mundial, a Fundação Jaraguaense de Meio Ambiente (FUJAMA) solicitou a elaboração do presente estudo em 2018, o qual teve como objetivo mapear e identificar as espécies de abelhas-sem-ferrão (ASF), na comunidade do entorno e na Área de Preservação Permanente (APP) do IFSC Campus Jaraguá do Sul-Rau. Para isso, foram confeccionados e instalados ninhos- isca em troncos de árvores de grande porte, à sombra, na APP do câmpus e na área do entorno, em casa de vizinhos da comunidade, sendo inspecionados semanalmente. As espécies de ASF que nidificaram nas iscas foram identificadas e entre 45 e 60 dias, após as capturas, os enxames eram transferidos dos ninhos-isca para as caixas racionais, dando início à estruturação de um meliponário modelo. Foram identificadas três espécies de ASF no entorno, a Jataí (Tetragonisca angustula), a Mirim-guaçu-amarela (Plebeia remota rufis) e a Mirim-droryana (Plebeia droryana). A participação da FUJAMA e os resultados obtidos são um indicativo à realização de futuras ações de extensão, visando a conservação de ASF e a introdução da atividade de meliponicultura na comunidade.
Recalibrating Human Rights-Based Approaches to Development: Are they Progressive and Transformational?
Authors: Kondowe George Jotham
Published: September 2021

This paper argues that notwithstanding criticisms levelled against Human Rights-Based Approaches (HRBAs) to development, such approaches are progressive and transformational because they provide a framework of standards on which development should be grounded. Further, HRBAs provide an analytic and institutional resource for articulating a wide range of justice concerns in order to challenge power relations and structural impediments in development processes. The paper is not blind to other contributions which have focused on the progressive potential of HRBAs and the attention that has been given to the challenges and pitfalls of implementing such approaches. Therefore, the paper builds on existing literature to advance its main thesis that HRBAs, which flow from human rights that are the subject of binding international legal obligations, are progressive and transformational because they provide a human rights language that can be vernacularised at national and local levels when development interventions are properly contextualised. The paper concludes with the position that despite concerns raised against HRBAs, such approaches offer a principled approach to development that puts a human person at the centre. Thus, concerns against HRBAs do not necessarily erode or invalidate the legitimacy of the transformative and progressive nature of such approaches in development practice.
UNDERSTANDING THE IMPACT OF COVID-19 PANDEMIC ON POST-GRADUATES IN MEDICAL EDUCATION IN THE STATES OF TELANGANA & ANDHRA PRADESH, INDIA
Authors: Praharaju Hema , Indukuri Shyam Sunder , Makineni Venakata Madhav
Published: September 2021

Post-graduate trainees in medical education in India have acted as key frontline healthcare staff during the COVID-19
pandemic,which has had a profound effect on them.This study used an online survey including 144 responses from postgraduate students in the states of Telangana and Andhra Pradesh, India, to understand the impact of the pandemic on
them.The survey contained question on personal protective equipment,psychological challenges being faced,clinical
& administrative support received, effect on teaching & training, and perception of their services by patients &
community. Personal protective equipment was deemed to be adequate by 21%. High levels of stress were described
by 75%. Inadequate level of clinical and administrative support was reported by 39% and 46%, respectively. 72% felt
that their training has been severely restricted.The majority of the respondents have had either verbal or physical abuse
from patients or their attendants.This study highlighted the major problems and the difficult environment being faced
by the trainees during the pandemic,and the necessity to address their concerns.
DIELECTRIC MEASUREMENTS ON PURE AND KDP ADDED DISODIUM HYDROGEN PHOSPHATE (DSHP) SINGLE CRYSTALS
Authors: Asbalter J. , Mugundakumari S. , John N. Joseph
Published: September 2021

Electrical conductivity is an elegant experimental tool to probe the structural defects and internal purity of crystalline
solids. In the present study we have grown pure and KDP added DSHP single crystals by the slow evaporation method
from aqueous solutions at room temperature. Good quality transparent crystals have been obtained. Melting point and
density measurements were done. Electrical conductivity measurements were carried out with two frequencies, 100 Hz
and 1 kHz at various temperatures ranging from 2 to 30oC by using the parallel plate capacitor method. The present
study indicate that the dielectric constant and AC and DC conductivities increase with increase of temperature.
Effect of Planting Dates on Incidence of Legume Pod Borer (Maruca vitrata Geyer) on Cowpea (Vigna unguiculata (L.) Walp.) Varieties in Samaru Kataf, Kaduna State
Authors: Musa N
Published: September 2021

Field experiment was carried out during 2018 cropping season to evaluate the effect of planting dates on incidence of legume pod borer Maruca vitrata on cowpea (Vigna unguiculata) varieties. The treatments consist of five varieties of cowpea (local variety, SAMPEA 6, SAMPEA 7, SAMPEA 8 and SAMPEA 10) which were sown at three different dates, 7th (early), 24th (Mid) August and 7th (early) September, 2018. The experiment was laid out in a Randomized Complete Block Design (RCBD) replicated three times. The number of M. vitrata larva on flowers, damaged pods and weight of grains were determined. The result showed that first sowing nearly August had less infestation by M. vitrata than those in mid August and differs significantly (P≤0.05) from those sown in September. All varieties sown in early and mid August had less M. vitrata infestation and produced higher grain yield of 533.33kg and 395.06 kg on SAMPEA 7 and SAMPEA 8, respectively compared to those sown in early September: 256.79 and 197.53 on SAMPEA 7 and SAMPEA 10, respectively. Local variety and SAMPEA 6 were the varieties with higher mean number of M. vitrata, higher pod damage and low grain yield. Therefore, SAMPEA 7 can be utilized in breeding program for the management of pod borer.
A Non-Volatile All-Spin Analog Matrix Multiplier: An Efficient Hardware Accelerator for Machine Learning
Authors: Bandyopadhyay Supriyo , Rahman Rahnuma
Published: September 2021

We propose and analyze a compact and non-volatile
nanomagnetic (all-spin) analog matrix multiplier performing the multiply-and-accumulate (MAC) operation using two magnetic tunnel junctions –
one activated by strain to act as the multiplier, and the other activated by
spin-orbit torque pulses to act as a domain wall synapse that performs the
operation of the accumulator. Each MAC operation can be performed in ~1 ns and
the maximum energy dissipated per operation is ~100 aJ. This provides a very
useful hardware accelerator for machine learning (e.g. training of deep neural
networks), solving combinatorial optimization problems with Ising type
machines, and other artificial intelligence tasks which often involve the
multiplication of large matrices. The non-volatility allows the matrix
multiplier to be embedded in powerful non-von-Neumann architectures.
Effect of potting media on the growth and leaf yield of Lettuce (Lactuca sativa) in Agbani, Nkanu west, Enugu state, Nigeria.
Authors: G.C.E. Okechukwu , O.E. Ngwu , S.U. Awere , C.O. Ezike
Published: September 2021

Agricultural by–products have been found useful in solilless crop production as a means to sustainability because it maximally utilizes available resources. Four growth media; coconut fiber, rice mill waste, sawdust and soil (control) were used to determine the effect of the growth and leaf yield of lettuce in the high-tunnel of the Faculty of Agriculture and Natural Resource Management, Enugu State University of Science and Technology during 2015 cropping season. The experiment was laid out in Completely Randomized Design (CRD) replicated six (6)times. The data collected revealed that coconut fiber significantly enhance lettuce growth, in terms of plant height, number of leaves, plant girth, leaf area index and fresh weight of the plant. Sawdust had no appreciable effect on most of the parameters taken, but coconut fiber produced greater yield when compared with rice mill waste. However, among various combinations, coconut fiber produced maximum yield and will fit well as a soilless medium for lettuce growth and production.
Analytical review of ways to ensure the security of budgetary systems in developed countries
Authors: Chebotarev Vladislav , Timchenko Andrey
Published: September 2021

This article is devoted to an overview of the methods and measures by which the governments of economically developed countries of the world ensure, to one degree or another, the security of their budget systems. At the same time, the authors consider the vulnerable aspects of the functioning of their public finance systems, the reasons for the emergence and the ability of the country’s leaders to eliminate negative factors and threats. This aspect is extremely important for ensuring the economic security of the state, since it provides an increase in the level of both economic and national security of the country.
Prevention of economic crime in the context of strategic planning and the content of the determinants that generate it
Authors: Chebotarev Stanislav , Petryanin Alexey
Published: September 2021

The article presents the content of the prevention of economic crime in the context of strategic planning and the determinants of its generating. Demonstrated the offensive growth of economic activities over the past ten years, on the example of crimes committed by deception or abuse of confidence. The polysemy of concepts and signs of economic crime is shown. The most characteristic features of it are highlighted. A special role in the area taken for the study of the new National Security Strategy of the Russian Federation and the Strategy of the Economic Security of the Russian Federation for the period up to 2030 is outlined. The methodological basis for the prevention of economic crime is presented in the form of provisions of the Federal Law “On the Basics of Prevention of Offenses in the Russian Federation”. The complex of its main determinants and methods of their leveling are outlined. The necessity of developing a draft Federal Law “On Counteracting Economic Crime” has been substantiated. It is noted that the prevention of economic crime is an axiom.
Relação das categorias de análise paisagem, território e lugar na construção de pequenas centrais hidrelétricas
Authors: Da Silva Juliana Rodrigues , Tarifa José Roberto
Published: September 2021

Com o crescimento populacional do Brasil no século XX, aliado ao rápido processo de industrialização, houve um aumento na demanda energética do país, surgindo a necessidade de novas fontes geradoras de energia, sendo as Pequenas Centrais Hidrelétricas (PCHs) uma dessas fontes. O presente estudo visou compreender, por meio da fundamentação teórica a relação das categorias de análise geográficas na construção das pchs. Na construção das pchs é importante o estudo das categorias de análise não de forma isolada, mas levando em consideração suas relações. A paisagem deve ser vista em torno de sua totalidade, levando em consideração os aspectos naturais, políticos, econômicos, sociais e culturais. Esses aspectos nos remetem ao território, em que nessas construções, não deve ser visto somente como uma delimitação das relações de poder, ou seja, além da dimensão material, deve levar em consideração a dimensão simbólica, construtora da identidade. É no lugar que essa identidade é intensificada, através dos laços afetivos, da experiência, das relações com os grupos sociais, pois o lugar em si não é visto somente como um local ou um ponto de referência situado no espaço, mas sim como um lugar de vivência, onde os laços serão criados e intensificados através da construção de sua identidade, e nesse lugar a apropriação e organização é de acordo com as necessidades de cada indivíduo. Assim, o modo de enxergar o mundo vai depender da percepção de cada sujeito, e como ocorre a sua relação com a natureza, nesse caso, transformando-a com a construção das pchs.
STEAM education- metacognition – Specific Learning Disabilities
Authors: Lytra Niki , Drigas Athanasios
Published: September 2021

Students with Specific Learning Disabilities, tend to have low academic performance because of the cognitive disorders and deficits of their working memory, as well as executing fuctions like these of processing - organizing and recalling information. Development of the Metacognitive skills, like those that presented by Drigas & Mitsea (2020), as 8 pillars of Metacognition, such as self-Awareness, self-Monitoring and Self-Regulation, helping these students recognize their weaknesses and introduce strategies and tactics will assist them to compensate their cognitive deficits, by becoming more flexible and adapt to any changes coming up, better. STEAM (Science, Technology, Engineering, Art, and Mathematics) education involves students in the education process, via a multifaceted and multi-sensory approach of to develop Meta-cognitive Skills, control the way they learn while building up the necessary knowledge, in order to secure equal academic and career opportunities. As a result, their independence and self-esteem being boosted preparing them to come up against 21st century challenges.
ASSESSMENT OF THE ROAD NOISE IMPACT ON THE LIVING CONDITIONS IN URBAN AREAS
Authors: Прожорина Татьяна Ивановна , Куролап Семен Александрович , Боева Анастасия Сергеевна
Published: September 2021

В современных городах отмечается устойчивый рост автомобильного транспорта, что служит условием формирования акустического дискомфорта и причиной появления некоторых экологически обусловленных заболеваний у населения. Приведено описание методики натурных экспериментов по измерению уровня шума в городской среде в различных условиях. Проведена оценка уровня автотранспортного шума в зависимости от расстояния между первой полосой движения и жилой застройкой. Исследовано влияние шума на условия среды обитания в жилых помещениях при открытых и закрытых створках окон, а также в режиме проветривания в дневное и вечернее время суток. Установлена экспериментальная зависимость эквивалентного уровня автотранспортного шума от этажности жилых зданий.

In modern cities there is a steady growth of road transport, which serves as a condition for formation of the acoustic discomfort that leads to the emergence of some environmentally caused diseases. The article describes the methodology of field experiments for measuring noise level in an urban environment under various conditions. The level of motor vehicle noise was assessed depending on the distance between the first traffic lane and residential buildings. The influence of noise on the living environment conditions in residential premises with open and closed windows, as well as in the mode of ventilation both in the day and evening time. As well we established the experimental dependence of the equivalent level of motor vehicle noise on the number of floors of residential buildings.
MULHERES NEGRAS E O TRABALHO
Authors: Oliveira Brenda Cardoso de , Macedo Cátia Oliveira
Published: September 2021

O presente artigo é fruto da pesquisa realizada no Programa de Pós-Graduação em Educação Profissional e Tecnológica – PROFEPT, do Instituto Federal do Pará – Campus Belém, atrelado à linha de pesquisa Práticas Educativas em Educação Profissional e Tecnológica. Como objetivo, busca-se compreender as relações entre o trabalho e as mulheres negras a partir do olhar interdisciplinar entre a História e a Geografia no Ensino Médio Integrado. A pesquisa tem caráter qualitativo e se constituirá metodologicamente como pesquisa-ação, por se tratar de uma forma de apreensão da realidade organizada de modo participante e ativo, propondo ações de intervenção na prática a partir do desenvolvimento da investigação. A pesquisa foi realizada com alunos do terceiro ano do Ensino Médio Integrado, do Curso de Edificações, do Instituto Federal do Pará, durante as aulas de Geografia, no segundo semestre de 2019. Os resultados demonstraram que as temáticas gênero, raça e trabalho podem ser discutidas a partir dos conteúdos ministrados na disciplina, por meio de ricos diálogos com outras áreas do saber, no caso, com a História. A partir dessas informações, foram organizadas atividades interdisciplinares que proporcionaram amplos debates juntos aos alunos, ao conectar os conhecimentos produzidos pelas disciplinas. Essas atividades constituíram-se em sequências didáticas – produto educacional da pesquisa. Vislumbra-se nessas sequências didáticas uma prática educativa atenta à promoção de uma educação para o trabalho que oportunize a igualdade de acesso a todos, que não reitere desigualdades e promovam conexões com as diferentes áreas do conhecimento do Ensino Médio Integrado.
REPLICATION IMAGE DETECTION USING CONVOLUTIONAL NEURAL NETWORK
Authors:   Department of Computer Science and Engineering, SRM Institute of Science & Technology, Kancheepuram, Tamil Nadu, India, Kalaiselvi K. , Saranya S. ,   Department of Electronics and Communication Engineering, Easwari Engineering College, Ramapuram, Chennai, Tamil Nadu, India, Thilak K. Deepa ,   Department of Computer Science and Engineering, SRM Institute of Science & Technology, Kancheepuram, Tamil Nadu, India, Kumaresan K. ,   Department of Computer Science and Engineering, KSR College of Engineering, Tiruchengode, Tamil Nadu, India
Published: September 2021

The ease of access to image data has led to overuse of repeated images at various instances which leads to increases duplication and redundancy in many industries. Advanced editing techniques which are available very easily, encourages original copyrights images to be misused. This results in lack of originality in data generated at every level. Common solutions include allowing manual selections of duplicate images or compares images pixel by pixel. The conventional method is to use 3 branch Siamese Convolution model to detect duplication of medical images. We propose to develop a model to detect duplication in everyday images by training a Siamese Convolutional Neural Network and try to achieve greater accuracy than previously developed solutions. Using Grad-Cam network inspection we propose to inspect the decisions taken by the CNN upon detecting duplication in images.
Numerical analysis and performance enhancement of compact heat exchanger using computational fluid dynamics
Authors:   Department of Mechanical Engineering, FET, University of Botswana, Gaborone, Botswana., A. Agarwal , O.B Molwane ,   Department of Industrial Design & Technology, FET, University of Botswana, Gaborone, Botswana, I Pitso ,   Department of Mechanical Engineering, FET, University of Botswana, Gaborone, Botswana.
Published: September 2021

Compact heat exchangers are used in various industries due to its good efficiency and compactness. The fluid used in heat exchanger has significant effect in augmentation of heat transfer characteristics of heat exchangers. In recent years, researchers have shown keen interest in uses of nanofluids for heat exchangers due to its good thermo-physical properties. The present study explores the application of ZnO /water nanofluid on compact heat exchanger with circular tubes using techniques of Computational Fluid Dynamics (CFD). The CAD model is developed in Creo design software and CFD analysis is conducted using ANSYS CFX. The volume concentration of nanoparticles used for analysis are .02,.04 and .07. The CFD analysis is conducted for both laminar and turbulent flow regime using SSG shear stress turbulence model. The temperature distribution, Nusselt number and pressure plots are generated to determine heat transfer characteristics. The results are encouraging, and significant enhancement of heat transfer is achieved using ZnO/water nanofluid. However, the pumping power requirement also increased with increase in nanoparticle concentration.
THE FINITE ELEMENT EVALUATION OF SUPPORT BRACKET USING THE APPLICATION OF TOPOLOGICAL OPTIMIZATION
Authors:   Department of Industrial Design & Technology, FET, University of Botswana, Gaborone, Botswana., M.T. Letsatsi , A Agarwal . ,   Department of Mechanical Engineering, FET, University of Botswana, Gaborone, Botswana, I Pitso ,   Department of Mechanical Engineering, FET, University of Botswana, Gaborone, Botswana
Published: September 2021

The demand for customized products has increased to suite various needs which could be easily developed using 3D printing technology. Most of the products require optimization for weight minimization which could be done using topological optimization tool. Topology optimization offers conceptual design for lighter and stiffer structures and helps to reach to efficient and aesthetic designs in lesser time. Topological optimization has shown its effectiveness is in improving design of structures with the help of high configuration and fast computing processors. With the use of FEA, the topologically optimized design can be tested which enables to determine design feasibility for different loads and boundary conditions. The current research investigates the application of topological optimization tool in weight minimization of support bracket. The generic design of supporting bracket is developed in Creo design software and structural analysis is conducted using techniques of Finite Element Method. The topological optimization tool enabled to reduce nearly 32% mass without much increase in deformation and stresses. The increase in deformation was found to be 5.6% and is profound in the regions of cylindrical support structure.
STATISTICAL INVESTIGATION OF I-SHAPED STIFFENED RECTANGULAR PLATE BY TAGUCHI RESPONSE EVALUATION
Authors:   Department of Industrial Design & Technology, FET, University of Botswana, Gaborone, Botswana., O.B Molwane , A Agarwal , M.T Letsatsi ,   Department of Industrial Design & Technology, FET, University of Botswana, Gaborone, Botswana.
Published: September 2021

In this research, the buckling of stiffened rectangular plate with square opening is studied using techniques of FEA. The stiffener used for analysis is I shaped placed on edges and in vertical configuration. Critical buckling loads are determined from load multiplier values obtained from FEA simulation. The features of stiffener are further optimized with Taguchi response technique to acquire essential responses of variables with respect to yield variables. The sensitivities of various optimization parameters are also determined. The results indicated that substantial enhancement in buckling resistance can be achieved through optimized dimensions of stiffeners. For safety-factor least both lower width and upper width shows positive sensitivities with lower width sensitivity rate is 54.041 (positive) and upper width rate is additionally 54.041 (positive). Hence, both upper width measurements and lower width has same impact on factor noticed for SPSW.
EFFECT OF MAGNETIZATION OF BIODIESEL ON ITS CHEMICAL PROPERTIES AND PERFORMANCE AND EMISSION PARAMETERS OF DIESEL ENGINE
Authors:   Department of Mechanical Engineering, Shri Vaishnav Vidyapeeth Vishwavidyalaya Indore, India., Chandravanshi Ajay , Pandey Shrikant ,   Department of Mechanical Engineering, Shri Vaishnav Vidyapeeth Vishwavidyalaya Indore, India., Malviya Rakesh Kumar ,   Department of Mechanical Engineering, Shri Vaishnav Vidyapeeth Vishwavidyalaya Indore, India.
Published: September 2021

Utilization of biodiesel results in lower emissions of hydrocarbons, carbon mono oxide, and smoke. But with the use of biodiesel as fuel emission of Oxides of nitrogen increases along with this some performance parameters also deteriorated. In the present investigation, the fact has been used that, the magnetization of fuels containing hydrocarbon changes the chemical properties as well as orientation and arrangement of molecules of fuel. In this experimental investigation density and calorific values of biodiesel have been determined. In another setup of experimentation on a single-cylinder four-stroke diesel engine, observations are taken with diesel, biodiesel blend containing 20% biodiesel (BD20), and magnetized biodiesel (BD20+MF) as fuel. Results of this investigation show that, the magnetization of biodiesel is not only helpful in increasing performance parameters like brake specific fuel consumption and brake thermal efficiency but also it helps to control the emissions of carbon mono oxide, oxides of nitrogen, hydrocarbons, and smoke. Maintaining the magnetic field just before the entry of the combustion chamber on the fuel line is a little hard, due to the regular increase in temperature of the spot where magnets are kept. It is possible that, if the strength of the magnetic field is increased then, there may be further improvement in performance and engine parameters, as in this investigation only 4000 Gauss Magnetic field has been used.
EFFECTS OF LASER IRRADIATION ON ADHESIVE TRIBO-PERFORMANCE OF EVA/HDPE/MA-G-PE/OMMT BLENDED POLYMER NANOCOMPOSITES
Authors:   Department of Mechanical Engineering, Shri Vaishnav Polytechnic College, Indore- India, Namdeo R. , Tiwari S. ,   Department of Mechanical Engineering, Shri G.S. Institute of Technology & Science, Indore, India, Manepatil S. ,   Department of Mechanical Engineering, Shri G.S. Institute of Technology & Science, Indore, India
Published: September 2021

Ethylene-co-vinyl acetate (EVA), high density polyethylene (HDPE) and their blends are being used in many engineering applications. In this work, an attempt was made to extend the conventional uses of EVA/HDPE blended polymer nanocomposites by laser treating their surface to automobile, aircraft, and similar industries, where tribological properties played an important role. Effects of laser irradiation on adhesive tribo-performances of maleic anhydride grafted polyethylene (MA-g-PE: 2phr) modified ethylene-co-vinyl acetate/high density polyethylene (EVA/HDPE: 70/30 wt. %) organ modified montmorillonite (OMMT: 4phr) blended polymer nanocomposite have been investigated. EVA/HDPE/MA-g-PE/OMMT polymer nanocomposite was irradiated by Ytterbium laser system (YSL-2000) at various scan speeds and power densities. As per ASTM G99 standard, tribo-performance attributes coefficient of friction and specific wear rate were evaluated using pin-on-disc machine against rotating EN31 steel disc of 60 HRC at different loads and speeds. Wear mechanisms of worn surfaces were analyzed using scanning electron microscopy (SEM) images. It was observed that coefficient of friction and specific wear rate were significantly affected by power density and load, while sliding distance and scan speed have marginal effects.
EFFECT OF CNT/TIB2 PARTICLE ON MECHANICAL, METALLURGICAL BEHAVIOUR OF MAGNESIUM (AZ91D) COMPOSITES
Authors:   Research Scholar, Department of Mechanical Engineering, CEG, Anna University ,Chennai, India., Velmurugan V. , Mohan Dr.B. ,   Professor, Department of Mechanical Engineering, CEG, Anna University ,Chennai, India
Published: September 2021

Carbon Nano tubes (CNT) and Titanium di Boride particles (TiB2) with different weight percentages reinforced composite magnesium alloy (AZ91D) were fabricated and the impact of changes in the mechanical and metallurgical properties of composites was assessed. Different weight percentage strengths of CNT (1.5 percent) and TiB2 particles (5 %, 10%, 15 %) were applied to AZ91D grade magnesium alloy for various stir casting system process parameters in this study. For reinforcement-matrix interfacial reactions, SiC and Al2O3 were also added. The composites with 10% TiB2 and (1.5 % CNT+1 % SiC+1% Al2O3) reinforcement show high hardness, whereas other reinforcements show increased elongation. The presence of elements revealed by energy dispersive X-ray spectroscopy also characterizes the composites using optical and scanning electron microscopy.
RESULTS OF THE APPLICATION OF NEW TECHNOLOGIES IN INCREASING RESOURCES IN HIGH PRESSURE DRILLS
Authors: Elman Aliyev Elman Aliyev , Zohra Garayeva Zohra Garayeva
Published: September 2021

In oilfield practice, as well as in the transportation of oil and gas, great importance is attached to the use of high-pressure valves. Since the demand for this fleet of equipment is growing, it is especially important to increase their resources and reduce their cost on this basis. Along with the constructive and technical measures taken in this direction, serious attention should be paid to improving the choice of materials for the manufacture of parts and their production technology..
The article is devoted to the discussion of the results obtained when using the coquille technology for the manufacture of parts made of low-alloy chromium-molybdenum steel
Keywords: high-pressure gate valve, body, gate, seat, hardness, wear.
CREATING A 3D MODEL OF OBJECTS USING TWO CAMERAS
Authors: Gulnara Feyziyeva Gulnara Feyziyeva
Published: September 2021

Over the past 20 years, 3D (three-dimensional) technology has become widespread as an advanced method for creating digital models of objects. This direction of science is used not only in the technical and space fields, but in the storage and protection of pharmaceuticals, museum exhibits and other cultural values in the form of digital data.
Currently, the method based on laser scanning is of particular importance for obtaining accurate images among wide-sector methods for constructing digital models of objects. Although the limited application of the method is associated with financial and economic problems, the accuracy of data, the creation of artificial objects, characters using various editors and programs, their animation, as well as harmony with real objects and interiors have become key factors in the spread of this technology.
The article analyzes the process of obtaining a three-dimensional image of a model using two cameras using three-dimensional graphics editors.
Keywords: 3D technology, digital model, graphic representation, Monge method, modeling.