bluuebunny/crossref_metadata_2025 huggingface dataset:
Economic and Environmental Impacts of Geothermal Resource Development in Hunan, China
Authors: Tang Yanhong , Deng Xiangyang
Published: April 2021

The global warming and soaring energy consumption have motivated many scholars and policymakers to pursue energy conservation and environmental improvement. As a renewable cleaning energy, geothermal resources have been actively developed in recent years. Taking six geothermal projects in Hunan, China as examples, this paper determines the input and output indices for each project. The input indices cover both economic and environmental dimensions. Then, the authors deeply explored how much geothermal resource quantity, single-well yield, total investment, and annual cost investment influence dynamic investment recovery period, coal reduction of summer operation, coal reduction of winter operation, environmental protection and energy saving, standard coal reduction, and emission reduction. The results show that total investment, single-well yield, and total investment have significant effects on economic indices, while geothermal resource quantity, single-well yield, and total investment have significant effects on environmental indices.
Effect of Wall Heat Transfer on the Fluidization Process
Authors: Ridha‏ Huda , Al-Azawy Mohammed Ghalib
Published: April 2021

The fluidized bed and the fluidization process and characteristics were studied in this paper numerically using Computational Fluid Dynamics (CFD) Ansys Fluent 15.0. Constant temperature was applied to both sides of the two-dimensional fluidized bed geometry. The superficial velocity of the working fluid ranged amid (0.08 – 0.5 m/s) and the initial height of the solid particles changed amid (0.05, 0.1, 0.2 m). Aluminum particles and water was used as working materials within the fluidized bed. The model used for the investigations was validated using Ngoh and Lim research results. The results showed that the fluidization head increases as the water inlet superficial velocity increases. As well as when the water inlet superficial velocity increases, the average solid phase temperature increases.
Dendrochronological study of Cedrus deodar Grown at Kumrat valley Dir Upper KPK, Pakistan: Evaluation of Tree Age and Increment Based on Increment Core
Authors: Sajad Sajad , Jawad Jawad , Ul Haq Ikram
Published: April 2021

The present research was conducted for tree-rings study in a mixed stand of Himalayan Species Credur deodar in Kumrat valley Dir Upper KPK, Pakistan. Tree-rings analysis was related to the counting of tree ring. Random sampling method was used, and 70 sample trees were selected, tree heights and diameters were measured, and increment cores were collected from each sample-tree diameter at the height at breast point to be analyzed and studied in the laboratory. The objectives of the study were to determine the exact age of tree and to evaluate total and mean annual increment in the basal area and tree volume based on the increment cores. Regression models revealed the impacts of tree age on the basal area and tree-volume increment. Results showed the minimum basal-area increment was 0.0028 m2 at the age of 10 years, the maximum basal-area increment was 2.658 m2 at the age of 60 years, with mean was 0.95±0.677 m2 at the age of 36 years and R2 was 0.9593. The maximum tree-volume increment was 1.42 m3 at the age of 60 years, the minimum tree-volume increment was 0.010 m3 at the age of 10 years, with mean was 1.35±0.96 m3 at the age of 36 years and R2 was 0.9167. The minimum mean annual-basal area increment was 0.0027 m2, the maximum mean annual-basal area increment was 0.048 m2, and the average increment was 0.022±0.010 m2. The maximum mean-annual increment in tree volume was 0.068 m3 at the age of 60 years, the minimum mean-annual increment was 0.0039 m3 at the age of 10 years, with mean was 0.032±0.014 m3 at the age of 36 years and R2 was 0.8903. Results showed a strong positive relationship of tree age with area and volume increment.

Keywords: Basal area, increment, tree age, volume
“WINS” untuk Pengelolaan Kawasan Lindung Berdasarkan Sistem Agroforestri Aren (Arenga pinnata) di Zona Rehabilitasi Taman Nasional Meru Betiri
Authors: Rahmatan Rahmatan , Zahro Yulia Raudhatul Balaqis , Azizah Safira
Published: April 2021

WINS" (Win-Win Strategy) in the management of protected areas is the strategy that benefit both parties. Agroforestry with forest trees accompanied by agricultural crops may benefits the community if it is implemented in line with the management of Meru Betiri National Park (TNMB) policies. The agroforestry plants proposed in this study were aren (Arenga pinnata), java chili (Piper retrofractum), and porang (Amorphophallus muelleri). This study recommends four strategies for better agroforestry practice in TNMB, i.e.,g. 1) strategy I, increasing public awareness of the urgency of the preservation of national park areas; 2) strategy II, formulating policies to support agroforestry as a strategic management effort; 3) strategy III, education and counseling, as a strengthening of the role of extension workers; and 4) strategy IV, facilitating access to relevant data across all participating institutions and is supported in a multidisciplinary manner. This model may be used as a reference for agroforestry models in conservation areas, especially in TNMB, which will optimize the development of native plants in an area.

Keywords: agroforestry, Arenga pinnata, Meru Betiri National Park, SWOT analysis, win-win strategy
Hasil Padi dan Kelimpahan Gulma dengan Aplikasi Jenis Pupuk Berbeda di Lahan Kering Tadah Hujan pada Musim Kemarau
Authors: Ahadiyat Yugi Rahayu , Sisno Sisno
Published: April 2021

Rice yield and proper weed control need to be increased through an environmentally friendly agricultural system approach in rainfed land during the dry season by reducing the dosage of synthetic fertilizers. This study aims to determine the effect of different fertilizer applications on rice yield and weed abundance in rainfed land during the dry season. The study used a split-plot design, with the main plot of rice variety, i.e., Situ Bagendit and IR-64, and subplots of fertilizer, namely synthetic fertilizers (N, P, K), organic fertilizers + P60 + ½ dose of synthetic fertilizers, organic fertilizers + PGPR + ½ dose of synthetic fertilizer and organic fertilizer + P60 + PGPR + ½ dose of synthetic fertilizer with three replications. The variables observed were rice yield components, namely panicle length, total empty grain and content per panicle, grain weights per hill, effective plot and hectare, 1000 grain weight, harvest index, and weeds summed dominance ratio (SDR). The synthetic fertilizers and three various organic fertilizers, biological fertilizers, and synthetic fertilizers gave different results on the SDR of weeds. The weeds of Sphenoclea zeynalica and Cyperus difformis showed consistent dominance with higher SDR than other weeds, i.e.,> 15 and > 10, respectively. The application of organic and biological fertilizers with half the recommended dosage of the synthetic fertilizers is equivalent to applying the recommended dosage of synthetic fertilizers on rice yield during the dry season on the rainfed dryland with low rainfall intensity and a low yield of 1.3–1.7 t/ha.

Keywords: biological fertilizer, inorganic fertilizer, organic fertilizers, rice, weeds
Seleksi Generasi F2 untuk Mendapatkan Jagung dengan Kandungan Antosianin
Authors: Adrianto Hari Isnaini , Mustikarini Eries Dyah , Prayoga Gigih Ibnu
Published: April 2021

Purple corn is one type of corn plant with high anthocyanin content, which is good for health. Hybridization activities can obtain purple corn with anthocyanin content and yield power of 9.85 tons/ha with selection. This study aims to select F2 generation corn strains that have a purple color. The genetic materials were planted without replicated design. The lines used are derived from the F2 seed results of a cross between purple corn of Marassempulu and white corn of Magetan. There were 120 plant samples. The results showed about 24 lines that had purple seeds in the F2 generation. The selection results with a selection intensity of 50% obtained 12 lines of corn which could be continued for the next generation, namely F2-PxU11-14, F2-PxU11-20, F2-PxU11-21, F2-PxU6-15, F2-PxU11-2, F2-PxU6-16, F2-PxU11-13, F2-PxU11-11, F2-PxU6-5, F2-PxU6-8, F2-PxU11-6, and F2-PxU11-16.

Kata kunci: corn, free-based, hybridization, purple, selection
A Response to Philip Benedict’s ‘Of Church Orders and Postmodernism’
Authors: Spohnholz Jesse
Published: April 2021

In this discussion of BMGN – Low Countries Historical Review Philip Benedict reviewed Jesse Spohnholz’s book, The Convent of Wesel: The Event That Never Was and the Invention of Tradition (Cambridge 2017). While Benedict praises Spohnholz’s research and contributions as they pertain to the religious history of sixteenthcentury Europe, he criticizes Spohnholz for borrowing from scholarship associated with the ‘archival turn’ and postmodernist critiques of constructivist empiricism. In this response, Spohnholz defends his approach and its relevance for questions about writing the history of the Reformation in the twenty-first century. Spohnholz stresses the shared historical and methodological perspectives between himself and Benedict (and others), comments on the historical significance of his study, and clarifies the book’s intended audiences.
Lectura crítica para la construcción del mundo
Authors: García-Castro Juan Fernando
Published: April 2021

El tercer número de la colección Lingua Nostra: conocimientos y posibilidades del español ofrece una aproximación alterna de la lectura crítica desde diversas perspectivas que contemplan las dimensiones pedagógica, literaria y normativa. La primera parte del texto presenta la lectura crítica desde la mirada de lo sociocultural. Esto significa una conceptualización de la lectura como una práctica que se inserta en las dinámicas sociales en las que se insertan los sujetos que leen. En esta conceptualización se ofrece una categorización de los niveles de la lectura según una tradición lingüística y sociocultural; asimismo, se presenta un acercamiento a las tipologías textuales como un dato relevante para el ejercicio de acceder al texto en términos hermenéuticos.
Some Approaches Regarding the Philosophy of Technology
Authors: Terec-Vlad Loredana
Published: April 2021

The concept of technology can be understood in many ways, especially nowadays, when we are practically connected to a multitude of increasingly complex artifacts. Talking about the philosophy of technology means bringing to the fore a multitude of related fields, as technology has changed the way we behave in the world, the way we relate to others and also the way we think and act. In this paper we will make an analysis of the concepts of technique and technology starting from the philosophies of Antiquity and continue on the way we currently understand man's relationship with artifacts.
Meditation and Hesychasm - a Transdisciplinary Approach
Authors: Lăcătuș Adrian-Neculai
Published: April 2021

Throughout the historical ages, man has sought to approach the Divinity in various ways: through fasting, prayer, meditation, etc. The states of asceticism reached by the Holy Fathers have remained a testimony and persist over the centuries. Not only in Christianity have such states been obtained, but in almost all religious traditions. Nowadays, man has not given up his relationship with God and certain practices are still perpetuated today, especially in the Holy Mount Athos. In this paper we will mainly address the hesychasm, but we will also draw a number of parallels with other religious doctrines in order to make a theoretical analysis of asceticism.
A Reading of Sandu Frunză's Readings: Filosofie și comunicare cotidiană. Cărțile ar putea să-ți schimbe viața [Philosophy and Daily Communication. Books Could Change Your Life], Lumen Publishing House, 2020
Authors: Cherman Florin
Published: April 2021

Is it still necessary to read books? Why should we, if we generally should, read more books? Why should we tire ourselves by doing this activity, when technology gives us so many other ways to consume the information we need or don't need? Why get bored with long, still texts, without images, trying to penetrate the meaning of their words, often distributed among the beautiful but difficult to probe formulations, when we have the alternative of receiving information through other sources, much more user-friendly? This paper is a review of the volume ”Filosofie și comunicare cotidiană. Cărțile ar putea să-ți schimbe viața” [Philosophy and everyday communication. Books could change your life], written by Sandu Frunză and published at Lumen Publishing House from Iași in 2020.
Analysis of the Impact of RCEP on China’s Mining Market
Authors: Lu Zhiwei
Published: April 2021

RCEP (Regional Comprehensive Economic Partnership), a modern, comprehensive, high-level and mutually beneficial agreement was signed, which marks the official establishment of the free trade zone with the largest participating population, the most diverse membership structure and the greatest development potential in the world. Benefited from RCEP, the regional trade liberalization can be achieved and the rising global inflation expectations can be reached. The mining industry, especially the metal industry, may usher in a new period of development opportunities. However, potential risks still need to be paid attention to. For example, the implementation of RCEP is far less than expectations; the situation of Sino-US trade has further deteriorated; and the implementation of economic stimulus policies in Europe and the United States falls out of expectations.
The Construction of the Protection Mechanism of Rural Landscape in the Process of Urbanization
Authors: Xia Siyi
Published: April 2021

With the accelerated development of urbanization, China’s rural landscape is declining. To create a “beautiful countryside”, the first thing is to protect the existing rural landscape. There are three aspects that need to be considered to structure the protection mechanism of rural landscape. Cultivated land is an essential part of the rural landscape. It is the basis of protecting the existing cultivated land in the countryside to establish and implement the cultivated land protection system. Rural cultural landscape is the cultural embodiment of the integration of rural society and natural environment. It should follow the principles of integrity, living and authenticity to protect the macro ecological environment and micro internal elements of the cultural landscape. Ecological conditions are closely related to the livability of the human settlement environment and cultural attribute of rural landscape. The construction of ecological civilization requires the government to take the lead and the masses to support, and then balance the benefits between ecologic and economic in the urbanization development.
The Research on the Path of Coordinated Development of Energy Tapping and Environmental Protection
Authors: Jia Zijian
Published: April 2021

The rapid development of the society and economy in China has led people’s standard of living to a higher level. However, the issues between energy development and environmental protection have become more pressing. In order to fundamentally solve the contradiction between environmental protection and energy development, it is necessary to deepen the awareness of protecting the environment and reasonably tap into the power of energy. Satisfy the two purposes, as in cherishing the environment and supplying energy for social development, at the same time. This paper provides an in-depth analysis of the problems of energy development and seeks a coordinated development path between energy development and environmental protection.
Towards Digital Transformation of Travel Agencies: Evaluation of Determinants using Fuzzy AHP Approach
Authors: Marinkovic Sanja , Petkovic Jasna
Published: April 2021

The goal of this research was to define the priorities in implementation of digital business model in travel agencies in Serbia, as despite many advantages of digitalization, the practice was still far from expected. Research conducted was based on two previously conducted studies: 1) Four dimensions of determinants published in Digitalization in Tourism Report, that were: 1. Opportunities; 2. Difficulties; 3. Motivations and 4. Obstacles, stated as relevant for successful implementation of a digital platform in tourist agencies; 2) Identified importance of this four dimensions and their determinants through research questionnaire conducted in travel agencies in Serbia. In this paper, the most important determinants for each dimension were elements used to establish AHP hierarchy for further evaluation using Fuzzy AHP numbers. Through evaluation, the most relevant determinants and dimensions were identified as support for future strategies in digital transformation.
Nestandardne oblike zaposlitve
Authors: Novak Vesna
Published: April 2021

Podjetja so v obdobju globalne transformacije pričela z novimi strategijami zaposlovanja, kar se kaže v vedno številčnejših nestandardnih oblikah zaposlitve. V prispevku so bolj podrobno obravnavane najpogostejše oblike, in sicer začasna zaposlitev, zaposlitev s skrajšanim delovnim časom in samozaposlitev. Podatke smo pridobili na Eurostatu, predstavljeni pa so za Slovenijo in države članice Evropske unije. Ugotovili smo, da so mladi posameznim oblikam še posebej izpostavljeni, kar se lahko pokaže kot vrsta negativnih posledic npr. slabši pogoji v primerjavi s tistimi, ki so v rednem delovnem razmerju, manjše plačilo, stalna dosegljivost, večja intenzivnost dela in s tem povezane obremenitve, ipd. Posebno pozornost smo namenili izzivom, s katerimi se bomo srečevali v prihodnosti. Opozorili smo na nevarnosti in podali usmeritve za prihodnost.
Opportunities for Sustainable Mobility Promotion among Students of the University of Maribor, Faculty of Organizational Sciences
Authors: Senegačnik Marjan , Baggia Alenka , Jarc Kovačič Branka , Vovk Maryna , Cherednichenko Olga
Published: April 2021

The aim of sustainable mobility is to choose means of transport that have the least possible impact on the environment. Since all motor vehicles cause a direct or indirect form of pollution, walking and cycling are an ideal form of mobility from an environmental point of view. If the use of vehicles is taken into account, public transport generates much less pollution per passenger than the car. In addition to logistical problems such as congestion and lack of parking space, the massive use of cars is a major contributory factor to a sharp deterioration in air quality in urban areas and causes emissions of greenhouse gasses. In addition to promoting sustainable forms of mobility, rational route planning is also important. It is, therefore, reasonable to prepare the timetable of activities, stressing the importance of limiting unnecessary routes. In this paper, we will see how sustainable mobility can be addressed in a higher academic environment. Several proposals are presented to optimize mobility by rationalizing the organization of students' obligations within the faculty.
Karierne ovire žensk na podorčju višjega managementa
Authors: Stojanović Ines , Jerebic Janja
Published: April 2021

V prispevku razpravljamo o problematiki kariernih ovir, s katerimi se ženske srečujejo na področju višjega managementa. Še posebej so nas pritegnile ovire, ki jih mnogi enačijo s steklenim stropom, saj so sestavljene iz stereotipov in predsodkov. Prav dejstvo, da še vedno zasledimo nižjo udeležbo žensk v višjem managementu, nas je vodilo v raziskovanje ovir, ki naj bi zavirale napredovanje žensk na vodstvene položaje. Raziskavo smo izvedli z anketiranjem žensk na višjih položajih v Sloveniji, in sicer v podjetjih, ki imajo več kot 250 zaposlenih. Rezultati raziskave so nam omogočili odgovoriti na vprašanje, ali se ženske v višjem managementu na svoji karierni poti srečujejo s steklenim stropom in v kakšni obliki. Prispevek zaključimo s sklepnimi mislimi in predlogi za izboljšanje stanja na področju razvoja kariere žensk v višjem managementu.
Razvoj podjetniških komptenc na podeželju
Authors: Vidic Franc
Published: April 2021

V Evropi predstavlja podeželje dobro polovico teritorija, v njem pa živi slaba četrtina prebivalcev. Podeželjsko okolje ima mnogo potencialov in priložnosti, po drugi strani pa je pogosto za mlade manj privlačno. Mladi ne vidijo dobolj priložnosti za oseben razvoj, za podjetniške izzive in zapuščajo podeželje. Raje se odločajo za življenje v urabanem okolju. Ohranjanje vitalnosti, prožnosti in in konkurenčnosti podeželja je izjemnega pomena. Osredotočamo se na podeželjski prostor Gorenjske statistične regije, združujemo strokovne ugotovite in prakse v predloge izboljšanja ekosistema gospodarjenja na podeželju. Priložnost vidimo v zagonu valilnice idej, kjer bodo mladi razvijali ideje, razvijali inovativne modele trajnostnega gospodarjenja, izboljšali učinkovitost, oblikovali večjo dodano vrednost in odpirali nova delovna mesta.
Dejavniki uspešnosti pri izpitu iz matematike: primerjava med generacijama študentov
Authors: Žnidaršič Anja , Brezavšček Alenka , Rus Gregor , Ribič Monika , Grbić Tatjana , Medić Slavica , Duraković Nataša , Jerebic Janja
Published: April 2021

V članku smo proučili, ali med zaporednima generacijama študentov rednega študija obstajajo statistično značilne razlike glede naslednjih dejavnikov: matematično predznanje iz srednje šole, odnos do učenja matematike s pomočjo tehnologije, zaznano nelagodje v situacijah, povezanih z matematiko ter angažiranost pri samem študijskem procesu iz matematike. Ker rezultati predhodne raziskave kažejo, da vsi ti dejavniki vplivajo na študijski uspeh, smo generaciji primerjali tudi glede na končno oceno izpita, opravljenega v tekočem študijskem letu. Ugotovili smo, da sta si proučevani generaciji študentov v večini upoštevanih dejavnikov precej podobni. Statistično značilne razlike smo lahko potrdili le pri zaznanem nelagodju v situacijah, povezanih z matematiko ter pri rezultatih samostojnega dela v okviru vaj.
A positive experience in applying the biolistic approach to potato varieties Aksor and Nevskiy
Authors: Malakhova N. P. , Skiba Y. A. , Iskakova G. A. , Naizabayeva D. A. , Tezekbaeva B. K. , Ismagulova G. A. , Maltseva E. R.
Published: April 2021

The method of biological ballistics (biolistic transformation, genetic bombardment) of plants is one of the most modern methods used for direct gene transfer into plant cells. The main advantages of this method include the ability to simultaneously incorporate several target genes into the plant genome, carry out transfer without unnecessary agrobacterial parts and plasmid DNA sequences, and the short time needed to produce transgenic cells. For different plant objects, the efficiency of obtaining transgenic plants by the ballistic method varies from 1 to 3 %. For potato plants, the transformation efficiency is quite low at the moment and the selection of optimal conditions for biolistics is one of the pressing issues of practical biotechnology. This article presents a successful experience of introducing two genes of interest into two potato varieties using the biolistic approach. The results of biolistic transformation experiments are presented for two types of explants: potato internodes and calli of the varieties Aksor and Nevskiy. Of the 862 explants used for transformation, 56 regenerated plants were obtained. PCR screening of transformants revealed one plant with the insertion of the chitinase gene, one with the insertion of the endo-β-1,3-glucanase gene, and co-transformation by both genes was confirmed in four regenerants. The average transformation efficiency for potato explants was 0.7 %. A high number of regenerants (56) as opposed to a low number of transformants (6) reflects an attempt to increase the number of regenerants by using a lower concentration of the selective agent (kanamycin). Although this approach requires more effort, it can be used to produce potato lines with integrated genes of interest for further use in crop breeding. The lines of potato obtained in the current study by introducing two genes associated with the plant response to fungal pathogens will be further assessed for their resistance to fungal diseases and, if successful, will be used in potato crop breeding.
Performing death: Marina Abramović’s 7 Deaths of Maria Callas
Authors: Marzano Francesco
Published: April 2021

This essay analyses the opera project 7 Deaths of Maria Callas by Marina Abramović, premiered in Munich in September, 2020. The first section reconstructs the role that the Greek soprano played in the life of the Serbian performer, bringing the latter to a gradual sense of self-identification. Then, the thirty-years-long development of the original concept of the video piece How to Die into the actual project through its various stages is taken into account, and the stage realisation of the work is described in detail. The third section focuses on the representation of death in Marina Abramović’s performances, while section four compares Callas and Abramović’s works and lives, and their status as iconic women. The last section retraces Abramović’s artistic path which has led her from her extreme and essential performances of the 1970s to her recent experimentations with other media and to her meditation on immaterial art.
К ВОПРОСУ ГИДРОДИНАМИЧЕСКОГО МОДЕЛИРОВАНИЯ ПРОЦЕССОВ ВОСХОДЯЩЕЙ МИГРАЦИИ РЕОЛОГИЧЕСКИ СЛОЖНЫХ НЕОДНОРОДНЫХ ФЛЮИДОВ ИЗ ГЛУБИННЫХ ПОДЗЕМНЫХ КОЛЛЕКТОРОВ
Authors: Мельник Игорь Анатольевич , Харламов Сергей Николаевич
Published: April 2021

Актуальность вызвана необходимостью разработок новых математических моделей, методов, экспериментальных подходов при исследовании проблем миграции глубинных углеводородных флюидов из подземных коллекторов нефтегазового бассейна. Цель: разработать универсальную физическую и математическую модель детального прогноза миграции по ограниченному пространству подземного коллектора произвольной геометрии; выдать рекомендации в практику исследования задач гидродинамики и тепломассообмена в данных условиях; сопоставить относительные величины сил, являющихся причиной миграционных процессов глубинных флюидов в вертикальном и латеральном направлениях. Методы исследования базируются на общих принципах механики сплошных гомогенных и гетерогенных сред, гидродинамики и тепломассопереноса. Результаты. Представлены данные анализа эффектов, сопровождающих гидрогазодинамику и тепломассоперенос при течениях гомогенных и гетерогенных реологически простых и сложных вязких смесей в полях действия внешних сил из подземных областей с произвольной геометрией щелевого и порового пространства. Проведен анализ корректности положений физического моделирования задачи о миграции подземных углеводородов и установления определяющих механизмов их подъема. Установлено, что восходящая миграция формируется под определяющим влиянием в результирующей силе: выталкивающей силы (Fв), учитывающей особенности изменений полей термодинамических параметров (состава (ci), температуры (T), давления (P)); силы тяжести (FG); фазовых явлений и процессов на границах исследуемого объема текущей углеводородной среды, а также силы градиента давления (FPR), поведение которой осложняется распределением всего спектра внешних и внутренних сил в сопряженной системе. Даны заключения о деталях моделирования движения флюида, формулировках определяющих чисел и критериев в рамках теории подобия рассматриваемых задач, полезных для уяснения и уточнения сути эффектов, процессов, сил, механизмов, сопровождающих миграцию. Результаты могут быть использованы для прогноза миграции, особенно в условиях, осложненных: аномальными фазовыми и реологическими мелкомасштабными диффузионными изменениями состава; сопряженным тепломассопереносом между породой и смесью; нестабильностью режимов в локальных областях течений флюида при произвольной термодинамической и геометрической конфигурациях подземного коллектора.
УТИЛИЗАЦИЯ ОТРАБОТАННОЙ ГЕРМЕТИЗИРУЮЩЕЙ ЖИДКОСТИ В СОСТАВЕ АСФАЛЬТОБЕТОННЫХ ПОКРЫТИЙ
Authors: Дюрягина Антонина Николаевна , Бызова Юлия Сергеевна , Островной Кирилл Александрович , Тюканько Виталий Юрьевич
Published: April 2021

Актуальность настоящего исследования продиктована необходимостью решений в области вторичной переработки различных промышленных отходов с целью их использования в составе нового продукта. Объект исследования – отработанный герметик АГ-4И, который применяется большими объемами на объектах энергетики, нефтегазодобывающих предприятиях, машиностроительных заводах, городских коммунальных хозяйствах и других отраслях промышленности в системах теплофикации. Вторичная переработка экономит природные ресурсы, сокращает количество твердых отходов, уменьшает загрязнение воздуха и воды и вредные выбросы в атмосферу. Дорожно-строительная отрасль может использовать переработанные материалы в составе асфальтобетонных покрытий. Модифицирование асфальтобетонных смесей отходами производства выступает в качестве приоритетного направления с целью сокращения огромного объема отходов, образующихся из различных источников.  Целью настоящей работы явилось исследование возможности утилизации отработанной герметизирующей жидкости АГ-4И в составе асфальтобетонных композиций с целью модифицирования.  Методы: реологические методы, структурно-механические методы оценки качества пленок и покрытий. Результаты. Были определены физико-химические и реологические характеристики отработанной герметизирующей жидкости в составе битумных композиций. В результате проведенных исследований выявлено, что консервация исследуемой герметизирующей жидкости в предпочтительном твердом виде является невозможной, т. к. попытки полимеризации полиизобутилена в составе отхода герметизирующей жидкости не привели к изменениям состава. Определено, что введение исследуемой герметизирующей жидкости в состав асфальтобетонных композиций позволяет использовать ее в качестве стабилизирующей и гидрофобизирующей добавки. Как следствие, улучшаются показатели адгезии к минеральным наполнителям и прочность покрытий.
ОЦЕНКА ТОЧНОСТИ ОПРЕДЕЛЕНИЯ КОЭФФИЦИЕНТА ПОРИСТОСТИ ПРИ ВЫПОЛНЕНИИ ТРЕХМЕРНЫХ ГЕОЛОГИЧЕСКИХ ПОСТРОЕНИЙ
Authors: Пономарев Александр Иосифович , Меркулов Анатолий Васильевич , Сопнев Тимур Владимирович , Мурзалимов Заур Уразалиевич , Кущ Иван Иванович , Кожухарь Руслан Леонидович
Published: April 2021

Актуальность исследования обусловлена необходимостью повышения точности прогнозирования технологических показателей разработки месторождений углеводородного сырья. Это позволит подбирать оптимальное оборудование для подготовки сырья, сдвигать сроки ввода промышленных мощностей для достижения максимального экономического эффекта от разработки месторождений. Цель: определить точность расчета коэффициента пористости месторождения, принятую при подсчете запасов и проектировании разработки; оценить вариации коэффициента пористости во всем объеме месторождения; оценить степень снижения точности определения коэффициента пористости при переходе от этапа керновых исследований до трехмерной геологической модели; установить причины снижения точности определения коэффициента пористости при трехмерном геологическом моделировании. Объекты: сеноманская залежь нефтегазоконденсатного месторождения на севере Западной Сибири. Методы: вариограммный анализ, трехмерное геологическое моделирование, оценка точности определения коэффициента пористости. Результаты. Для корректного выполнения подсчета запасов и подготовки проектного документа требуется определить коэффициент пористости с погрешностью не более 5 %. В работе оценена вероятность достижения требуемого уровня точности расчета коэффициента пористости при подсчете запасов только по данным геофизических исследований скважин, по результатам данных геофизических исследований скважин, но с учетом расположения скважин по площади месторождения, а также с учетом пространственного распространения коэффициента пористости. Выполнена оценка границ изменения коэффициента пористости по всему объему породы-коллектора, что в дальнейшем может послужить основой для адаптации гидродинамической модели. Рассчитано снижение соотношения объемов исследованного керна к объему породы по геофизическим исследованием скважины, к общему объему породы-коллектора, а также проведена оценка точности определения коэффициента пористости при переходе от лабораторных исследований к среднему коэффициенту пористости по всему объему породы-коллектора.
МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ ПРОЦЕССА УЛЬТРАЗВУКОВОЙ ПОДГОТОВКИ ВЫСОКОВЯЗКОЙ НЕФТИ К ТРАНСПОРТУ
Authors: Азин Антон Владимирович , Богданов Евгений Петрович , Марицкий Николай Николаевич , Пономарев Сергей Александрович , Рикконен Сергей Владимирович
Published: April 2021

Актуальность исследования обусловлена необходимостью определения уровня энергии физических воздействий на высоковязкие нефти с целью их подготовки к транспорту. Эти знания актуальны для проектирования ультразвуковых установок по изменению реологических свойств нефти. Цель: определение уровней акустической энергии в слоях многослойной акустической системы при разных частотах воздействия для выявления резонансных режимов работы механической системы «излучатель–нефть» с целью подготовки нефти к транспорту. Объекты: механическая многослойная система «излучатель–нефть», конструкция которой определяется способом внесения энергии и резонансной частотой конкретного слоя системы. Методы: математическое моделирование процесса ультразвукового излучения с определением энергии прохождения, поглощения и отражения в каждом слое механической системы «излучатель–нефть», определение резонансных частот с максимальным уровнем энергии в нефтяном слое. Результаты. Разработана математическая модель многослойной акустической системы, позволяющая рассчитать энергию акустического излучения в каждом слой системы. Частотные характеристики акустического излучения позволяют определить резонансные режимы в каждом слое системы, в том числе в нефти. Знания уровня акустической энергии в последующем позволит определить изменения реологических свойств нефти, в том числе и от нагрева. Выводы. Математическая модель распространения ультразвука в многослойной среде позволяет рассчитать энергию в каждом слое акустической системы при различных частотах возбуждения источника колебаний с различными соотношениями длины волны в слое и толщины данного слоя. Наличие отраженных волн в каждом слое создает череду резонансов (режимов стоячих волн). Частотные характеристики с учетом интерференционной картины поля отражают картину проникновения энергии в слои и показывают, что за счет образования стоячих волн (резонансов) энергия в нефти может быть близка к энергии излучателя. Акустическая энергия в слое нефти падает в зависимости от увеличения исходной вязкости. Данная математическая модель позволяет рассчитать конструкцию акустической системы для подготовки нефти и углеводородных топлив к транспорту, подготовки топлив к сжиганию, подготовки масел к эксплуатации в условиях Арктики и Антарктики.
Children’s Harmful Work in Ghana’s Lake Volta Fisheries: Research Needed to Move Beyond Discourses of Child Trafficking
Authors: Bellwood-Howard Imogen , Abubakari Abdulai
Published: April 2021

Children work throughout the Lake Volta fisheries value chain. It is commonly assumed most have been trafficked. Research and advocacy has focused on dangers to young boys harvesting fish, and poverty as a driver, precluding attention to harms experienced by non-trafficked children, girls’ experiences and work-education dynamics. More work is needed on the proportions of children who fish and perform harmful work; structural, ecological and historical contexts; young people’s agency in pursuing fishing work; and why attention to trafficking dominates.
Pedagogical cooperation as a condition for the cognitive development of preschoolers with disabilities in inclusive education
Authors: Makarova Lyudmila N. , Smolyarchuk Inessa V. , Isaeva Svetlana N.
Published: April 2021

We substantiate the need to develop pedagogical cooperation as a condition for the cognitive development of preschoolers with disabilities (on the example of children with mental retardation) in inclusive education. Domestic preschool education is based on new educational standards and equal educational opportunities for students. Our position is that the development of the cognitive sphere of preschoolers with mental retardation in inclusive education is most successful in the process of cooperation of children with teachers (teacher-defectologist and educators). The results of an experimental study carried out on the basis of the “Kindergarten no. 5 “Zvonochek” of the city of Tambov are presented. 20 preschoolers with mental retardation took part in the expe-rimental work. The study of cognitive mental processes was carried out with the help of diagnostic methods: “Correction test”; “10 words”; “Elimination of extra”. The developed program of peda-gogical cooperation as a condition for the cognitive development of preschoolers with mental re-tardation in inclusive education includes two blocks: the first block – classes on “Familiarization with the outside world”; the second block – classes on “Development of elementary mathematical concepts” in the process of joint activities of children, a teacher-defectologist and educators in a preschool educational organization. The relationship between the identified blocks of the program is analyzed, the main factors for pedagogical cooperation are determined. A comparative analysis of the level of development of cognitive processes in preschoolers with mental retardation (expe-rimental and control groups) at the control stage is presented, proving the effectiveness of the tested program.
Theoretical foundations of teaching children to read
Authors: Pervova Galina M. , Semenova Evgeniya A.
Published: April 2021

The work reflects the historical and theoretical aspect of the method of teaching reading in Russia: three stages of development of methodic science in this direction are described. A com-parative analysis of the definitions of the concept “reading” in different sources of knowledge is carried out, and the methodic phenomenon of reading is described. The psychological-pedagogical and reference materials used in the work reveal both achievements in the methods of teaching children to read, and problematic issues. In particular, the issue of the objectives in the teaching reading, determined by the age peculiarities of the participants in the process, drawing on the works of psychologists and supervisors a difference is read as the physiological actions and how speech activities, are called classical and alternative methods of learning to read and other. We come to conclusions about the possibility of learning to read in preschool age, since theoretical and empirical prerequisites are created, and practical methods of teaching children to read are developed. A hypothesis is put forward about the need for individualization of training and the creation of a scientifically based technology of the process.
Correspondence of B.P. Mansurov with some figures of the Imperial Orthodox Palestinian Society in 1882–1885
Authors: Krotova Tatyana A.
Published: April 2021

We analyze the activities of B.P. Mansurov to establish contacts with Russian dignitaries and clerics interested in the implementation of the Palestinian project. It is shown that the greatest impact was caused by the need to implement large projects, such as the acquisition of land or the construction of churches. At the same time, support for the urgent needs of pilgrims (arrangement of hotels and hospices, food supply, treatment) became secondary and was not solved by B.P. Mansurov. As a result, dissatisfaction with his activities and opposition to both the Russian Ecclesiastical Mission in Jerusalem, with which the Imperial Orthodox Palestinian Society competed for the flow of budget funds and donations, and with secular officials dissatisfied with the ineffective Russian policy in the region, grew. We describe the tension in relations between the Russian authorities and the Jerusalem Patriarchate due to the interference of the Russian Empire in the income of the Patriarch from the Bessarabian estates. Information is given about the support of the local Arab population, part of which traditionally belonged to Christian (including Orthodox) churches. It is indicated that public support for pilgrimage and missionary activities was more effective than that carried out through state (or close to dignitaries) organizations.
Pedagogical prevention of drug addiction in the general education system: health-preserving aspect
Authors: Nikiforova Tatyana J. , Maskalyanova Svetlana A.
Published: April 2021

The reasons for the introduction of children and adolescents to the use of drugs are analyzed, the medical and social consequences of drug addiction for the health of the younger generation are given. The theoretical and methodological prerequisites for pedagogical prevention of drug addiction among school students in the general education system are substantiated. The basis for the implementation of preventive measures in the educational process is the development and implementation of special programs for students at different stages of training. The directions and pedagogical aspects of the organization of anti-drug work with students, which increase the effec-tiveness of preventive programs is disclosed. An important condition for the implementation of pedagogical work with school students on the prevention of drug addiction is the implementation of an integrated approach that takes into account the unity of educational, upbringing and health-improving effects. The necessity of interconnection of pedagogical work on the prevention of drug addiction with the formation of their motivation for health and a healthy lifestyle is shown.
Model of practical training in the university for future social sphere professionals
Authors: Akopyanc Igor A.
Published: April 2021

The conceptual development of a model for the practical training of future professionals in the social sphere at the university is substantiated. It is noted that the core of the social sphere is social work as an active tool of the state’s social policy in working with various categories of the population. In the course of the study, block-structural model of the practical training of future professionals in the social sphere at the university is developed, including the following blocks: productive-purposeful, conceptual, software-technological, evaluative-reflective. The productive-purposeful block is associated with competence indicators, determined by the main indicators of professional knowledge, skills and abilities, the requirements for professionals in solving social problems and the goals of theoretical and practical training of future specialists in the social sphere, in accordance with professional standards. The conceptual block of the model includes re-search approaches (competence-based, androgogical, socio-cultural) and their corresponding prin-ciples. The software-technological block contains programs for organizing the passage and train-ing work with students and representatives of social organizations – bases of educational, research and industrial practices, a program for monitoring student practice and individual support. The evaluative-reflective block of the model assumes an awareness of how students achieve their learning goals in practical training is of paramount importance, this is important for understanding their professional role in the practice of social work. Practical training at a university is an integral part of the social education curriculum, taking into account the essence of helping professions and the specifics of the social sphere. The results of the interviewing, the included observation show the relationship between changes in practical training programs and the positive dynamics of the quality of practical training of students, an increase in the parameters of personal, social and tech-nological competencies among students of the “Social Work” Programme.
Experience in training students and Post-Graduate students of high technologies in science cities of Russia
Authors: Chvanova Marina S. , Kiselyova Irina A. , Anureva Maria S.
Published: April 2021

We analyze the domestic experience of training students and Post-Graduates of high technologies on the example of the leading universities of science cities of Russia: Biysk Technological Institute (branch of the Polzunov Altai State Technical University) (Biysk), Joint Institute for Nuclear Research (Dubna), Obninsk Institute for Nuclear Power Engineering – branch of National Research Nuclear University “MEPhI” (Obninsk), Pushchino State Natural Science Institute (Pushchino). We consider educational programs, the main directions of research activity, interac-tion with enterprises, Research Institutes, Scientific Production Centers, interaction technologies. As a result, conceptual approaches to the successful development of the leading universities of science cities in Russia are identified: support for new companies (“startups”) the founders of which are usually enterprises, research institutes or universities; promotion of entrepreneurial in-dependence of students and employees of higher educational institutions and research institutions; integration of large and small technology companies into innovative clusters; conducting student internships and performing research work in the laboratories of science cities; assistance from state, regional and local authorities, grant assistance.
Phraseologized components of conditional type in the system of complex sentences
Authors: Galkina Natalia P.
Published: April 2021

We consider complex sentences, the subordinate parte of which is formally qualified as conditional, however, the semantics features, as well as a repetitive, reproducible model of con-structing such sentences, indicate the transformation of conditional relation in them. The research is carried out in the context of studying sentences with subordinate conditions, reasons, purposes, concessions, consequences, combined into a general category of dependence. The material under consideration includes conditional complex sentences, selected by the method of continuous sam-pling from works of the book style – scientific and publicistic. Structural and semantic analysis of syntactic constructions is accomplished with taking into account the provisions of communicative linguistics. We show that as a result of a combination of linguistic means result, emotional-expressive nuances, a transformation of meaning, an increment of meaning arise: subordinate clauses lose the semantics of the condition and express different shades of the speaker’s subjective attitude (modus of utterance). We define semantic groups of subordinate clauses in which the meaning of the condition is weakened, transformed or completely lost. We offer a sufficient number of examples to illustrate the invariant features of each group. Structural-semantic and functional properties of the investigated structures allow us to talk about the phraseologization of these structures, through which the communicative potential of the sentence is realized. The described phenomena are noticeably manifested in publicistic speech, which is characterized by information content, evaluativeness, emotionality, accessibility, appeal to the reader.