bluuebunny/crossref_metadata_2025 huggingface dataset:
OPTIMIZATION OF THE CHOICE OF ELECTROTOMOGRAPHY ARRAYS BASED ON 2D-3D MODELING
Authors: Куликов В.А. , Корбутяк С.П. , Королькова А.В. , Поликарпова В.А.
Published: August 2024

На основе инверсии синтетических данных, полученных путем двумерного и трехмерного моделирования, проведено сравнение разрешающей способности нескольких установок электротомографии, применяемых при решении рудных задач до глубин 400-500 м. Установки AMN + MNB и ABMN, используемые в протоколах многоканальных станций, сравнивались с нестандартными установками электротомографии, позволяющими проводить измерения с одноканальной или малоканальной аппаратурой. Использовались количественные оценки, показывающие суммарное отклонение всех границ аномалиеобразующих объектов и разницу удельного электрического сопротивления в исходной и инверсионной моделях. Широкий модельный ряд, использование разных вмещающих разрезов и глубин залегания целевых тел позволили получить обширную статистику, отражающую преимущества и недостатки той или иной установки ЭТ.

Based on the inversion of synthetic data obtained by two-dimensional and three-dimensional modeling, a comparison was made of several electrotomography arrays used in solving ore problems to depths of 400-500 m. The AMN+MNB and ABMN arrays used in the protocols of multichannel stations were compared with non-standard electrotomography arrays used with single-channel or low-channel equipment. Quantitative estimates were used showing the total deviation of all boundaries of anomalous objects and the difference in electrical resistivity in the initial and inversion models. A wide range of models, different host medium and depths of cover of anomalous bodies made it possible to obtain extensive statistics reflecting the advantages and disadvantages of electrotomography arrays.
EXPERIENCE IN CONDUCTING SEISMIC SURVEYS USING THE HIGH-PERFORMANCE SLIP-SWEEP METHOD IN THE ARCTIC REGION
Authors: Идиятов Р.Х. , Сираев И.А. , Гафаров Р.М. , Ахтямов Р.А.
Published: August 2024

Потребность в увеличении объемов выполняемых сейсморазведочных работ и получаемой геологической и геофизической информации требует применения новых более эффективных технологий при регистрации сейсмических данных. В статье изложены опыт и достижения в области высокопроизводительной методики вибрационной сейсморазведки slip-sweep АО «Башнефтегеофизика». Приводятся достигнутые параметры производительности за три полевых сезона в сложных природно-климатических условиях Арктического региона. Рассказывается о новых модифицированных виброисточниках «Батыр», выпускаемых нашей компанией в рамках импортозамещения. Опыт применения данных источников позволяет сделать вывод о надежности и работоспособности в любых климатических условиях, а также дает возможность использовать их для работ по любым методикам, включая высокопроизводительную slip-sweep. Делается заключение о том, что выполнение за один сезон значительных объемов сейсморазведочных работ возможно в условиях Арктического региона.

The need to increase the volume of seismic surveys performed and the geological and geophysical information obtained requires the use of new, more efficient technologies for recording seismic data. The article describes the experience and achievements in the field of high-performance vibratory seismic survey slip-sweep of Bashneftegeofizika JSC. The achieved performance parameters for three field seasons in difficult natural and climatic conditions of the Arctic region are given. It tells about the new modified vibration sources “Batyr”, produced by our company in the framework of import substitution. The experience of using these sources allows us to draw a conclusion about the reliability and performance in any climatic conditions, as well as the ability to use them for work using any method, including high-performance slip-sweep. It is concluded that it is possible to perform significant volumes of seismic surveys in one season in the conditions of the Arctic region.
AUTOMATIC PICKING OF THE FIRST BREAKS USING MACHINE LEARNING
Authors: Приезжев И.И. , Иванов П.Д. , Гаврилов С.С. , Мамаев Д.А. , Калинин А.Ю. , Стенина Ю.В.
Published: August 2024

В статье предложен метод автоматической пикировки первых вступлений с использованием машинного обучения. Предложенный метод использует многошаговые вычисления места первого вступления на регистрируемой сейсмической трассе. На каждом шаге происходит коррекция времени первого вступления. На завершающем шаге выполняется финальная коррекция времени первых вступлений на основе выбора подобных значений кажущихся скоростей на близких к вычисляемой трассах с использованием нейронных сетей Кохонена. Показана высокая эффективность предложенного метода пикировки первых вступлений на различных данных.

The article proposes a method of automatic picking of the first breaks using machine learning. The proposed method uses multistep calculations of the time of the first break on the recorded seismic track. At each step, the time of the first break is corrected. At the final step, the final correction of the time of the first breaks is performed based on the choice of similar apparent velocities on routes close to the calculated one using Kohonen neural networks. The high efficiency of the proposed method of picking the first breaks on various datasets is shown.
THE RESULTS OF COMPLEX ELECTROMAGNETIC SOUNDINGS ON THE LEFT SIDE OF THE RIVER UGRA
Authors: Куликов В.А. , Алексанова Е.Д. , Денисова А.А. , Ионичева А.П. , Слинчук Г.Е. , Шустов Н.Л. , Яковлев А.Г.
Published: August 2024

В период с 2015 по 2022 год в районе научно-учебного полигона геологического факультета МГУ им. М.В. Ломоносова в Калужской области были выполнены измерения комплексом электроразведочных методов по трем профилям субширотного направления. Комплекс включал в себя вертикальные электрические зондирования с измерением вызванной поляризации, зондирования становлением поля в ближней зоне, аудиомагнитотеллурические зондирования. Эти работы посвящены изучению миоценовой палеодолины, закартированной в среднем течении р. Угры. По результатам комплексной интерпретации электроразведочных данных была построена глубинная модель удельного сопротивления и поляризуемости. На качественном уровне на основе карт кажущихся электроразведочных параметров были оценены пространственные границы палеодолины.

From 2015 to 2022 in the area of the research and training fieldcamp “Aleksandrovka” of the Geology Department of the Lomonosov of Moscow State University (Kaluga region) the elecrtomagnetic survey was carried out along three lines with sublatitudinal direction. Survey included a set of electmomagnetic methods: vertical electrical sounding with induced polarization, time-domain electromagnetic sounding and audio magnetotelluric sounding. These surveys were done to study the Miocene paleovalley located in the middle course of the Ugra river. Resistivity and chargeability model was obtained from the joint inversion of EM data. Boundaries of the paleovalley were define more accurately using apparent resistivity and chargeability maps.
DATA-MAINING TECHNOLOGIES USAGE FOR LITHOFACIES MODEL OF TERRIGENIC DEPOSITS CONSTRACTION
Authors: Рыжков В.И. , Осинцева Н.А. , Приезжев И.И.
Published: August 2024

Литолого-фациальная модель пласта является основой для принятия дальнейших решений по его разведке и разработке. Построение детальной модели является длительным трудоемким процессом, содержащим существенную субъективную составляющую, обусловленную опытом и квалификацией специалиста-геолога. Облегчить эту задачу можно путем применения технологий искусственного интеллекта. Авторами предлагается концепция и алгоритмические основы системы, предназначенной для построения литолого-фациальной модели терригенных отложений с использованием технологий интеллектуального анализа данных на основе алгоритмов машинного обучения.

The lithofacies reservoir model is the basis for making further decisions on its exploration and development. Building a detailed model is a long labor-intensive process containing a significant subjective component depending of the experience and qualification of a geologist. This task can be facilitated by the use of artificial intelligence technologies. The authors propose the concept and algorithmic foundations of a system designed to build a lithofacies model for terrigenous deposits using data-mining technology based on machine learning algorithms.
COMPARISON OF WAVEFORMS OF SEISMIC EVENTS IN THE PERM REGION AND TECHNOGENIC EARTHQUAKES IN THE CASPIAN OIL FIELD (KAZAKHSTAN)
Authors: Мурыськин А.С. , Шулаков Д.Ю.
Published: August 2024

В работе представлено сравнение волновых форм землетрясений, зарегистрированных в окрестностях поселка Таборы в Добрянском районе Пермского края, с техногенными землетрясениями нефтяного месторождения Тенгиз (Казахстан). Резкий рост сейсмической активности в районе поселка Таборы поставил вопрос о происхождении этих землетрясений. В районе зоны активации сейсмичности ведется разработка трех небольших нефтяных месторождений: Ольховского, Пихтового и Ульяновского. Сейсмограммы сравниваются с техногенными землетрясениями по визуальным, спектральным и амплитудным параметрам. Для работы с большим набором данных использовался язык программирования Python с применением библиотек SciPy и ObsPy. Рассмотрены типовые волновые формы сейсмических событий, усредненные нормированные спектры, статистика по измерению амплитуд продольных и поперечных волн на трехкомпонентной записи. По всем проанализированным параметрам установлено наличие значительных отличий между сейсмограммами, полученными на двух рассматриваемых объектах. С высокой вероятностью установлено, что землетрясения в районе поселка Таборы имеют не техногенную, а тектоническую природу.

The paper presents a comparison of the waveforms of earthquakes recorded in the vicinity of the village of Tabory in the Dobryansky district of the Perm Territory with man-made earthquakes of the Tengiz oil field (Kazakhstan). A sharp increase in seismic activity in the region of the village of Tabora raised the question of the origin of these earthquakes. In the region of the seismicity activation zone, three small oil fields are being developed: Olkhovskoye, Pikhtovoye and Ulyanovskoye. Seismograms are compared with man-made earthquakes in terms of visual, spectral and amplitude parameters. To work with a large data set, the Python programming language was used using the SciPy and ObsPy libraries. Typical waveforms of seismic events, averaged normalized spectra, statistics on measuring the amplitudes of longitudinal and transverse waves on a three-component record are considered. For all the analyzed parameters, significant differences were found between the seismograms obtained at the two objects under consideration. It has been established with a high probability that earthquakes in the area of the village of Tabory are not of man-caused, but of tectonic nature.
METHOD OF DETERMINING FORMATION ATTITUDE WITH ONE AND TWO-DIMENSIONAL DATA OF LOGGING WHILE DRILLING (LWD) FOR GEO-STEERING
Authors: Шао Ц. , Сюй С. , Е Юань , Цао С. , Тан Х. , Костицын В.И. , Се М.
Published: August 2024

На основе разномерных данных геофизических исследований скважин (ГИС) в процессе бурения (LWD) рассмотрены методы определения залегания горных пород (ГП) с использованием одномерных (1D) неазимутальных и двухмерных (2D) вверх-вниз азимутальных данных каротажа, проанализированы их ограничения и применимые условия. Представлены методики изображения в реальном времени эффективного разделения границы пластов и количественного определения залегания горных пород. Подтверждена их правильность на основе 2D многосекторных азимутальных данных во время бурения.

This paper introduces the methods of determining formation attitude by using one-dimensional (1D) non-azimuth and two dimensional (2D) up-down azimuth LWD data, and analyzes their limitations and applicable conditions. Based on 2D multisector azimuth data imaging while drilling, the methods of efficient formation boundary division and quantitative calculation of formation attitude are presented. Through the example of formation attitude calculation using azimuthal gamma log imaging while drilling, it is shown that the 2D multi-sector LWD imaging data can be used to quantitatively calculate the real formation attitude and improve the modeling accuracy and geosteering ability of the actual drilling formation.
METHODOLOGICAL ASPECTS OF LOCALIZATION OF CRUSTAL EARTHQUAKES ACCORDING TO SEISMIC DATA IN THE CENTRAL PART OF LAKE BAIKAL
Authors: Беляшов А.В. , Предеин П.А.
Published: August 2024

Уточнение положения очагов землетрясений Центрального Байкала осуществляется путем объединения в единую технологическую линию известных методических решений, при этом некоторые из них используются в новом качестве. Так, например, в программе Hypoellipse используются параметры, полученные из графиков Вадати: время в очаге (То), определенное с максимальным коэффициентом детерминации, применяется в качестве объективного критерия оценки точности локализации, значение Vp/Vs - в качестве фиксированного для каждой станции входного расчетного параметра. Применяется многокомпонентная скоростная модель (в качестве аналога 3D-модели), основанная на априорной информации.

Central Baikal earthquakes hypocenter location improvement is performed by combination of widely used techniques into the integrated technological line, moreover some of these techniques will be used in their new capacity. For example, in the Hypoellipse software the following parameters, obtained from Wadati diagrams, will be used: origin time (To), defined with the peak determination factor, is to apply as an objective measure of the location accuracy; Vp/Vs ratio - as a fixed for each of the stations input parameter. A multi-component velocity model (as equivalent of 3D model), based on the prior information, have been used.
INCREASING LABOR PRODUCTIVITY IN THE PHYSICAL AND CHEMICAL LABORATORY LLC CENTER OF THE SCIENCE-RESEARCH AND PRODUCTION WORKS
Authors: Мухаметшин Т.Т. , Дядинчук Н.А.
Published: August 2024

Приведены практические методы по оптимизации работы и увеличению производительности труда в лаборатории физико-химических исследований на примере производственного подразделения ООО «Центр научноисследовательских и производственных работ».

Practical methods for optimizing work and increasing labor productivity in the laboratory of physical and chemical research are given on the example of the production unit of LLC Center of the science-research and production works.
ASYMPTOTIC SOLUTIONS OF HELMHOLTZ EQUATION IN FULL WAVEFORM INVERSION
Authors: Протасов М.И. , Гадыльшин К.Г. , Неклюдов Д.А. , Климэш Л.
Published: August 2024

В данном исследовании рассматривается метод полноволнового обращения, основанный на асимптотических решениях уравнения Гельмгольца. Реализована частотно-зависимая трассировка лучей, чтобы получить волновое поле, используемое для вычисления градиента в полноволновом обращении и расчета смоделированных данных. При сопоставимом качестве решения обратной задачи применительно к стандартному конечно-разностному подходу скорость вычислений в асимптотическом методе на порядок выше. Серия численных экспериментов демонстрирует эффективность предложенного подхода при восстановлении структуры скоростной модели сложных сред для низких частот.

This study considers the Full Waveform Inversion (FWI) method based on the asymptotic solution of the Helmholtz equation. We provide frequency-dependent ray tracing to get the wavefield used to compute the FWI gradient and calculate the modelled data. With a comparable quality of the inverse problem solution as applied to the standard finite-difference approach, the speed of calculations in the asymptotic method is an order of magnitude higher. A series of numerical experiments demonstrate the approach’s effectiveness in reconstructing the macro velocity structure of complex media for low frequencies.
MODELING OF THE GAS-OIL TRANSITION SATURATION ZONE BASED ON CORE DATA AND WELL LOGGING
Authors: Егорова А.Д. , Исакова Т.Г. , Дьяконова Т.Ф. , Калмыков Г.А.
Published: August 2024

На сегодняшний день одновременный приток газа и жидкости в скважине изучен недостаточно, простых и достоверных методов, приемлемых на практике для определения параметров переходной газонефтяной зоны пласта без проведения специальных исследований на керне, нет. Знание о раздельной степени насыщенности пор газом, нефтью и водой, его изменении по высоте и площади залежи позволит учесть эти параметры при прогнозе производительности скважин по газу и нефти, добывных возможностей скважин или отдельных участков залежи, устойчивости работы скважин. В данной работе рассматривается петрофизическая модель газонефтяной переходной зоны на основе капилляриметрических исследований керна, которая может использоваться для прогноза изменения коэффициента нефтеи газонасыщенности по высоте залежи и толщин зон переходного насыщения «нефть газ» для учета в гидродинамических моделях.

To date, the simultaneous inflow of gas and liquid in the well has not been studied enough. There are no simple and accurate methods that are acceptable in practice for determining the parameters of the transitional gas-oil zone of the reservoir without conducting special studies on the core. Knowledge of the degree of saturation of pores with gas, oil and water, its change in height and area of the deposit will allow these parameters to be taken into account when predicting the productivity of wells for gas and oil, the production capabilities of wells or individual sections of the deposit, and the stability of well operation. In this paper, we consider a petrophysical model of the gas-oil transition zone based on capillarimetric studies of the core, which can be used to predict changes in the oil saturation coefficient along the height of the reservoir and the thicknesses of the oil-gas saturation transition zones to be taken into account in hydrodynamic models.
ON THE POSSIBILITY OF SOLVING LARGE-SCALE ONE-DIMENSIONAL PROBLEMS OF SEISMIC DATA INVERSION ON MODERN QUANTUM ANNEALERS
Authors: Малетин Н.В.
Published: August 2024

Настоящая работа демонстрирует принципиальную возможность решения достаточно масштабных задач инверсии сейсмических данных на современных квантовых отжигателях на примере одномерной задачи для горизонтально-слоистой модели среды в акустическом приближении. Задача оптимизации функционала невязки наблюдаемых и синтетических данных декомпозируется на три задачи: задачу оптимизации функционала более простого вида той же размерности, задачу поиска минимума одномерной функции и задачу расчета членов простого рекуррентного ряда. Далее задача оптимизации более простого функционала преобразуется в задачу QUBO такой размерности, которая уже позволяет получить ее приближенное решение на современных квантовых отжигателях за приемлемое время. Такое приближенное решение может быть получено путем декомпозиции исходного гамильтониана QUBO на гамильтонианы с меньшим количеством бинарных переменных, глобальный минимум каждого из которых может быть найден на квантовом отжигателе. Справочно приводится краткое описание одного из возможных алгоритмов такой декомпозиции.

The present work demonstrates the fundamental possibility of solving sufficiently large-scale problems of seismic data inversion on modern quantum annealers by the example of a one-dimensional problem for a horizontally layered model of a medium in an acoustic approximation. The problem of optimizing the residual functional of observed and synthetic data is decomposed into three problems: the problem of optimizing a simpler functional of the same dimension, the problem of finding the minimum of a one-dimensional function, and the problem of calculating the terms of a simple recurrent series. Next, the optimization problem of a simpler functional is transformed into a QUBO problem of such dimension that it already allows to obtain its approximate solution on modern quantum annealers in an acceptable time. Such an approximate solution can be obtained by decomposing the original QUBO Hamiltonian into Hamiltonians with fewer binary variables, the global minimum of each of which can be found on a quantum annealer. A brief description of one of the possible algorithms for such decomposition is provided for reference.
PETROELASTIC MODELING OF OIL-BEARING CARBONATE RESERVOIRS: THE CASE STUDY OF A FIELD IN EASTERN SIBERIA
Authors: Дернова А.С. , Березина И.А. , Баюк И.О.
Published: August 2024

На примере карбонатного коллектора были продемонстрированы возможности петроупругого моделирования. С использованием фотографий шлифов и результатов рентгеноструктурного анализа был определен минеральный состав породы. Построены три петроупругие модели, для каждой из которых был выполнен анализ чувствительности к параметрам используемой модели. Из трех опробованных петроупругих моделей была выбрана наиболее удачная, в которой пустотное пространство представлено изометричными порами и хаотическими трещинами. Результат работы этой модели наилучшим образом совпадал с имеющимися экспериментальными измерениями скоростей упругих волн на керне. Последующее применение выбранной модели к скважинным данным позволило решить обратную задачу по определению таких параметров пустотного пространства, как тип пористости, аспектное отношение и плотность трещин.

The possibilities of petroelastic modeling were demonstrated using the example of a carbonate reservoir. The mineral composition of the rock was determined using photos of the slide and the results of X-ray structural analysis. Three petroelastic models were constructed, and sensitivity analysis to the parameters of the model used was performed for each of them. Of the three thermoelastic models tested, the most successful one was chosen, in which the void space is represented by isometric pores and chaotic cracks. The result of the operation of this model best coincided with the available experimental measurements of elastic wave velocities on the core. The subsequent application of the chosen model to the well-log data allowed us to solve the inverse problem of determining such parameters of the void space as the type of porosity, aspect ratio and density of crack pores.
REPROCESSING AND REINTERPRETATION OF ARCHIVE MATERIALS — WAY TO OBTAINING THE ADDITIONAL GEOLOGICAL INFORMATION
Authors: Душкин А.Б. , Малиновский К.К. , Шумилов А.В. , Васильев М.В. , Звонарев А.Н.
Published: August 2024

Рассматриваются примеры переобработки и переинтерпретации архивных материалов сейсморазведки. Показано, как новые процедуры и методики позволяют повышать информативность сейсмических материалов и получать новую геологическую информацию о перспективных объектах.

Examples of reprocessing and reinterpretation of archive materials of seismic exploration are reviewed. It is shown how new procedures and techniques allow to increase informational content of seismic data and to obtain the new geological information about perspective objects.
TO THE USE OF UAVS IN ELECTRICAL PROSPECTING; INFLUENCE OF LOCAL OBJECTS ON THE MAGNETIC FIELD OFTHE AC LINE AB
Authors: Каринский А.Д. , Иванов А.А. , Зуденков И.А.
Published: August 2024

Приведены результаты математического моделирования для случая, когда заданным возбудителем электромагнитного поля служит лежащая на горизонтальной границе S проводящего полупространства линия AB гармонически меняющегося электрического тока. В проводящем полупространстве есть несколько приповерхностных локальных объектов, отличающихся от вмещающей их среды по удельному электрическому сопротивлению. Вычисляемыми величинами являются характеристики вертикальной компоненты Hz переменного магнитного поля в воздухе на значительной высоте над границей S. Показано, какое влияние на эти характеристики оказывает присутствие локальных объектов.

The results of mathematical modeling are presented for the case when the given exciter of the electromagnetic field is the line AB of a harmonically varying electric current lying on the horizontal boundary S of the conducting half-space. In a conducting half-space there are several near-surface local objects that differ from their host environment in electrical resistivity. The calculated quantities are the characteristics of the vertical component Hz of the alternating magnetic field in the air at a significant height above the boundary S. It is shown how these characteristics are influenced by the presence of local objects.
Bibliometric Analysis Of Articles Published In Scopus Database In The Field Of Environmental, Social And Corporate Governance (ESG)
Authors: Su Ümran , Ertan Yasemin
Published: August 2024

In this study, it is aimed to examine the literature on Environmental, Social and Governance (ESG) studies by bibliometric analysis method, to analyse the performance in this field and to reveal the conceptual structure of the field. For this purpose, 2,055 articles published in the Scopus database between 2006 and 2024 were analysed. As a result of the study, it was revealed that Khaled Hussainey is the most influential author in this field, the article titled ‘Firms and Social Responsibility: A Review of ESG and CSR Research in Corporate Finance’ published by ‘S.Gillan et al.’ in 2021 is the most influential document and the country where the most up-to-date studies in this field are conducted is China. In addition, as a result of the study, it was seen that the articles published in this field were grouped under 6 clusters and the most up-to-date keywords were ESG and ‘ESG performance’.
PERANCANGAN DAN PEMILIHAN STRATEGI BERSAING DI PT. ELNOV DWIATA MANDIRI DENGAN METODE SWOT DAN COMPLEX PROPORTIONAL ASSESSMENT (COPRAS)
Authors: Akbar Mohammad , Nugraha Qori
Published: August 2024

Elnov Dwiata Mandiri is a Company engaged in electrical maintenance servies. This company operates on a project basic where the process is carried out if there is a request by a service user or client. This company is a company with project model that must have high adaptation and respond to the surrounding environment. Therefore, the argument is strengthened tha existence of strategic planning is an important topic. This research was conducted with the aim of knowing internal and external environmental factors using the IFE and EFE matrices and looking for alternative strategies using the SWOT matrix and determining competitive strategies based on appropriate criteria using Complex Proportional Assessment (COPRAS). The results showed that IFE matrix value was 3,18 and the EFE matrix value was 3,69. If depicted in the IE matrix, the company’s condition is in quadran I, which means a build and growth strategy to improve good relations with distributors and suppliers, and improve the structure company. Strategy by improving the quality of Operatonal HR is the best alternative strategu to be implemented at PT. Elnov Dwiata Mandiri with a utility values of 100%. This strategy is the most appropriate to implement so that human resources are more productive at work and to create positive changes for emloyees
Implementasi Kebijakan Etika ASN di Universitas Teuku Umar Meulaboh
Authors: Darmayanti Cici , Mahdani Said , Ikhsan Ikhsan , Risnafitri Hafizhah
Published: August 2024

Etika kebijakan kepegawaian sebagaimana diatur dalam Peraturan Pemerintah Nomor 42 Tahun 2004 tentang Pembinaan Jiwa Korps dan Kode Etik ASN, menetapkan kewajiban etis yang harus dilaksanakan oleh ASN dalam menjalankan tugas kedinasan dan pergaulan hidup sehari-hari. Namun kenyataannya masih banyak sikap dan perilaku PNS yang tidak sesuai dengan nilai-nilai etika ASN. Berawal dari kedua kajian tersebut dalam hal ini dimaksudkan untuk mengetahui bagaimana implementasi kebijakan di Universitas Teuku Umar. Metode yang digunakan adalah metode deskriptif-kualitatif. Sumber  data (informan) dalam penelitian ini adalah ASN di lingkungan Universitas Teuku Umar. Informan diambil dari unsur pimpinan/pejabat struktural sebanyak 5 orang dan dari unsur pegawai staf/pelaksana sebanyak 10 orang, sehingga jumlah seluruh informan dalam penelitian ini sebanyak 15 orang. Instrumen dalam penelitian ini adalah peneliti sendiri, sedangkan pengumpulan data menggunakan teknik wawancara. Hasil berdasarkan penelitian menyimpulkan: 1). Tindakan yang dilakukan pimpinan sehubungan dengan implementasi kebijakan seperti UU dan Perda (PP.42 Tahun 2004), pembinaan kesadaran pegawai, dan penegakan aturan etika sudah cukup efektif. 2) Pemahaman tentang etika PNS yang diatur dalam PP.42 Tahun 2004 (etika bernegara, etika berorganisasi, etika bermasyarakat, etika dalam diri sendiri, dan etika PNS lainnya) sudah cukup baik. 3). Penerapan etika atau praktik kepegawaian oleh pegawai dalam pelaksanaan tugas kedinasan secara umum sudah cukup baik, namun belum maksimal. Artinya, sikap dan perilaku PNS dalam menjalankan tugas kedinasan secara umum sudah sesuai dengan etika PNS yang ditentukan dalam PP.42 Tahun 2004. Kata kunci: implementasi kebijakan, etika PNS
DETERMINASI KEPUASAN PENGGUNA E-WALLET PADA KALANGAN MAHASISWA
Authors: Nazira Iga , Bachri Naufal , Nurainun Nurainun , Muchsin Muchsin
Published: August 2024

Penelitian bertujuan untuk menguji pengaruh persepsi kemudahan, kepercayaan dan keamanan terhadap kepuasan pengguna e-wallet OVO pada mahasiswa Universitas Malikussaleh. Penelitian ini menggunakan data primer yang diperoleh dengan cara membagikan kuesioner kepada 112 responden yang dipilih dengan pendekatan purposive sampling. Metode analisis data yang digunakan adalah regresi linear berganda dengan bantuan software SPSS. Indikator yang digunakan mengadopsi dan mengadaptasi studi peneliti sebelumnya dan dijadikan instrumen penelitian yang diuji validitas dan reliabilitas. Hasil penelitian menunjukkan bahwa persepsi kemudahan, kepercayaan, dan keamanan berpengaruh positif dan signifikan terhadap kepuasan pengguna e-wallet OVO. Dengan demikian, kepercayaan merupakan faktor dominan yang mempengaruhi kepuasan pengguna e-wallet OVO. Kajian ini berimplikasi pada pengembangan konsep kepuasan pengguna e-wallet pada kalangan mahasiswa. Studi ini berkontribusi untuk pengembangan kurikulum dan bahan ajar khususnya dalam  bidang pemasaran digital. Penelitian memiliki keterbatasan seperti terbatasnya jumlah sampel dan variabel yang digunakan. Sebaiknya, peneliti selanjutnya dapat menggunakan variabel lain seperti persepsi risiko, persepsi manfaat dan variabel lain untuk menemukan kebaruan studi.
Effectiveness of Water Extract of Sea Lettuce (Ulva Lactuca) from Aceh to Reduce Blood Glucose Levels in Diabetic Rats
Authors: Rinawati Rinawati , Muhsin Sri Wahyuni , Ayunda Hanif Muchdatul
Published: August 2024

Diabetes mellitus (DM) is a non-communicable disease characterized by high blood glucose levels caused by damage to the pancreas, which cannot produce insulin. Antidiabetic drugs and insulin injections in the long term have specific side effects, so herbal medicine is considered safer to use. Sea lettuce (Ulva lactuca) is one of the herbal medicines that have the potential as an antidiabetic. Methods: Experimental using a completely randomized design. Rats were divided into five groups with three replicates, namely: Kn = normal control, Ka = STZ control, P1 = DM rats + 200 mg/KgBB extract dose, P2 = DM rats + 300 mg/KgBB extract dose, and P3 = DM rats + 400 mg/KgBB extract dose. The stages of this study began with the preparation of tools and materials, phytochemical tests, the preparation of test animals and testing extracts on test animals, and the measurement of blood glucose levels in rats before and after they were given extracts. Blood glucose levels were measured using a glucometer. Data analysis was performed statistically (ANOVA). The results of the phytochemical tests detected were steroids, saponins, and phenols/tannins, while alkaloids, terpenoids, and flavonoids were not. The most effective blood glucose level measurement result is at a dose of 400 mg/KgBB.
Fatty Acid Profile of Snakehead (Channa striata) and Its By-Product by GC-MS
Authors: Puteri Nafisah Eka , Febriansyah Muhammad Irfan
Published: August 2024

The increasing demand for sustainable and high-quality food sources has led to a growing interest in exploring alternative protein options. Fish-derived products, known for their nutritional value, unique flavor profiles, and potential health benefits, have gained significant attention. Among these, snakehead (Channa striata) and its by-products have emerged as promising resources for various food applications, including fish powder production. Fish powder holds immense potential in the food industry as a versatile ingredient, capable of enhancing nutritional content while minimizing waste. This research focuses on investigating the fatty acid composition and volatile compounds present in snakehead fish powder and its by-products. The study employs a combination of analytical techniques, namely gas chromatography-mass spectrometry (GC-MS) and lipid extraction methods, to identify and quantify fatty acids and volatile compounds in the fish powder samples, providing a comprehensive chemical profile. The data reveals variations in the fatty acid composition among different components of the snakehead powder samples, influenced by the fish's feeding habits. The presence of essential fatty acids, including omega-3 and omega-6, highlights the potential health benefits of consuming snakehead powder. Moreover, the identification of odd chain saturated fatty acids (OCS-FAs) in the samples indicates their potential contribution to human health. Notably, snakehead powder contains docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), which have reported preventive effects on human coronary artery disease. In conclusion, snakehead powder is a valuable source of protein and essential fatty acids, with potential implications for human health. The study emphasizes the significance of incorporating polyunsaturated fatty acids (PUFAs) into the human diet, potentially through fish powder consumption. Overall, the findings highlight the potential benefits of snakehead meat, head, skin, and bone, encouraging the development of functional food products and their potential use in preventing stunting.
Innovation in Nutrition Promotion : Literature Analysis to Increase Community Awareness and Healthy Practices
Authors: Saci Muhammad Amin Arigo , Yuliana Indah , Harwanto Fatria
Published: August 2024

The important role of health promotion in improving community welfare has encouraged effective innovation to increase nutritional awareness and healthy lifestyle practices. This research explores recent innovations in health promotion strategies, particularly in nutrition and health, to increase awareness and encourage positive behavioral change. Through comprehensive literature analysis, this research identifies and evaluates approaches such as technology interventions, community-based initiatives, and other new strategies. The results show that innovations such as nutrition promotion media (pop-up books, PGS cards, leaflets, nutrition puzzles, and educational videos) as well as active community participation (FGD and lunch menu practices) and empowering health workers and teachers, have succeeded in increasing knowledge. , attitudes and nutritional behavior of the community. Case studies and successful programs show real improvements in community nutrition practices. However, challenges such as limited sample size, short intervention duration, and methodological obstacles need to be overcome. Based on these findings, further research is recommended focusing on: (1) longitudinal research with larger sample sizes to understand long-term impacts; (2) exploration of contextual factors that influence program effectiveness; (3) evaluate the effectiveness of innovation for vulnerable groups such as people with disabilities or people with low education; (4) evaluation of community empowerment strategies and their impact on local health policies; and (5) exploration of cross-sectoral collaboration for holistic and sustainable nutrition promotion programs. These findings provide valuable insights for practitioners, researchers, and policymakers, and serve as a comprehensive resource for designing programs that increase nutrition awareness and encourage healthy practices in communities.
Identifikasi dan Mitigasi Risiko pada Proyek Konstruksi Menggunakan Metode House of Risk: Studi Kasus
Authors: Irawan Heri Tri , Pamungkas Iing , Hasnita Hasnita , Fauza Teuku Soleh
Published: August 2024

PT. Rigis Beukarya Property is a developer and contractor for housing projects in the West Aceh region. Housing projects that are implemented often experience obstacles in the construction of the project, such as over budget from the predetermined RAB, repeated repairs, materials that are ordered late, and exposure to bad weather which results in large losses due to these obstacles. The aim of this research is to identify risks in the Grand Keutapang housing development process, and mitigate the dominant risks in the Grand Keutapang housing development process. The House of risk (HOR) method is used to solve this problem by identifying risk events, risk agents and also designing risk agent mitigation strategies based on Aggregate Risk Potential (ARP) values. The results obtained from the house of risk stage 1 risk mapping show that there are 5 dominant risk agents that will be taken into consideration in developing mitigation actions, namely: A-14 (Lack of coordination between parties involved) with an ARP value of 3,384, A-1 (Incompetent/careful workforce) with an ARP value of 1,800, A-12 (Fluctuating company financial cash flow) with an ARP value of 826 , A-15 (Lack of supervision in the field) with an ARP value of 777, and A-8 (Increase in material prices) with an ARP value of 696. From the results of the house of risk phase 2 risk mapping, 5 risk mitigation action plans were obtained, including: PA-1 (Creating a monitoring and sanctions system) with an ETDk value of 5,961, PA-2 (Creating a standard diary (buhas)) with an ETDk value of 3,331, PA-3 (Creating a complete checklist) with an ETDk value of 6,236, PA - 4 (Making adaptive cost estimates) with an ETDk value of 4,270, and PA-5 (Improving the effectiveness of communication with all parties) with an ETDk value of 8.427.
Pengendalian Kualitas Produk Griller Menggunakan Failure Mode Effect and Analysis (FMEA) dan Root Cause Analysis (RCA)
Authors: Chusnah Asma’ul , Cahyana Atikha Sidhi
Published: August 2024

A company engaged in the slaughterhouse of boiler chickens and one of its products is griller, which is chicken that is cut in a halal manner and packaged in the form of a whole carcass. Based on daily reports, the number of defects found in griller products shows a percentage of up to 30%. The purpose of this study is to identify the types of defects found in grillers so that alternative improvements can be determined. This research uses the Failure Mode Effect Analysis (FMEA) method to identify the most dominant types of defects in the product and find the causes. The highest defects from the FMEA results are processed by the Root Cause Analysis (RCA) method to provide improvement proposals so as to reduce the number of existing defects. The results of this study show that the most dominant type of defect is feathers remaining on the carcass with the highest RPN value of 175. The defect of feathers still remaining on the carcass is caused by workers who do not follow the SOP correctly, the changing size of raw materials, and rubber. The plucking machine is worn and loose, the settings of the plucking machine are loose, the temperature of the scalder tends to drop, the inspection in the process is not correct, there is no information on how to operate the machine, the raw materials are not uniform, and the working environment temperature is high and noisy.
Keragaan Unit Penangkapan Ikan di Pangkalan Pendaratan Ikan (PPI) Lhok Bengkuang Kecamatan Tapaktuan Kabupaten Aceh Selatan
Authors: Andriana Mutia Rifka , Hafinuddin Hafinuddin , Zuraidah Syarifah , Fuadi Afdhal
Published: August 2024

South Aceh currently has 5 fish landing base points (PPI), namely PPI Lhok Bengkuang, PPI Labuhan Haji, PPI Sawang Ba'u, PPI Keude Mekek and PPI Keude Bakongan. There are three types of fishing fleets in South Aceh in 2019, namely motorboats, motorboats, and non-motorized boats. The fishing gear used by South Aceh fishermen is fishing rods, gill nets, shrimp nets, ring trawls, payang, rawai, tonda, beach trawls and bagan. The purpose of this study is to find out the types of fishing gear and fish catches in PPI Lhok Bengkuang. Penelitian ini dilaksanakan pada bulan Oktober sampai November 2022, data yang diambil yaitu data primer dan data sekunder, data primer berupa data koesioner sebanyak 44 responden. The method of selecting respondents was carried out by the purposive sampling method for fishermen at PPI Lhok Bengkuang and secondary data was obtained from related agencies. This research method uses descriptive analysis, the data analysis process is in accordance with the instructions in the Decree of the Minister of Fisheries and Fisheries Regulation number 6 of 2010 concerning fishing equipment in the national standard WPPRI. The results of the study showed that there were 3 main fishing gear at PPI Lhok Bengkuang that were environmentally friendly, namely stretch fishing rods, bottom fishing gear and ring trawls, then there was 1 type of fishing gear that was prohibited, namely fishing gear that used a compressor. The type of fishing gear is included in PermenKP No. 6 of 2010 at PPI Lhok Bengkuang.
EFEKTIVITAS PENAMBAHAN CAIRAN RUMEN DOMBA KOMERSIL PADA PAKAN TERHADAP SINTASAN DAN PERTUMBUHAN BENIH IKAN BAWAL AIR TAWAR (Colossoma macropomum)
Authors: Maharani Putri , Haser Teuku Fadlon , Febri Suri Purnama , Nazlia Suraiya , Komarudin Didin
Published: August 2024

Cairan rumen domba merupakan sumber enzim hidrolase yang murah dan mudah didapat. Penelitian ini bertujuan untuk mengetahui kelangsungan hidup dan pertumbuhan ikan bawal air tawar yang diberi cairan rumen domba komersial dan pakan dengan dosis berbeda. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan 4 perlakuan yang diulang sebanyak 3 kali. Tiap perlakuan diberi dosis cairan rumen domba komersil P1= 0 ml (kontrol), P2= 25 ml, P3= 35 ml, dan P4= 45 ml. Hasil perlakuan tersebut memberikan pengaruh nyata terhadap pertumbuhan panjang absolut, pertumbuhan bobot absolut, laju pertumbuhan harian dan rasio konversi pakan (RKP). Sedangkan kelangsungan hidupnya tidak mempunyai perbedaan yang signifikan. Pertumbuhan panjang absolut tertinggi terdapat pada P4 sebesar 3,40 cm, sedangkan pertumbuhan panjang absolut terendah terdapat pada P1 sebesar 2,73 cm. Pertumbuhan bobot absolut tertinggi terdapat pada P4 sebesar 11,79 g, sedangkan pertumbuhan bobot absolut terendah terdapat pada P1 sebesar 8,92 g. Laju pertumbuhan harian tertinggi terdapat pada P4 sebesar 3,65%, sedangkan laju pertumbuhan harian terendah terdapat pada P1 sebesar 3,10%. Dari hasil penambahan cairan rumen domba komersial dengan dosis berbeda pada pakan, semakin tinggi dosis cairan rumen domba komersial yang diberikan maka pertumbuhan yang dihasilkan akan semakin baik.Kata kunci: cairan rumen domba komersial, bawal, pertumbuhan, kelangsungan hidup
TINGKAT KESUKAAN BAKSO IKAN BERBAHAN BAKU DAGING IKAN PELAGIS KECIL
Authors: Junianto Junianto , Aufa Indrawan , Banafsaj Khansa , Zakira Hanna
Published: August 2024

One of the most abundant fish resources in Indonesian waters. Almost all small pelagic fish caught landed in Indonesia are consumed locally because the price is relatively cheap and tastes good, so it is thought that their contribution to meeting the community's need for protein from fish is very real (Fauziah 2010). In Indonesia, there are various methods of processing fish, one of which is making fish balls. The aim of this research was to determine the level of preference for fish meatball products for small pelagic fish meat types. The method used was experimental research with treatment of 3 types of small pelagic fish meat, namely flying fish, mackerel and trevally. The parameters observed are the level of preference based on organoleptic characteristics which include appearance, aroma, texture and taste. The analysis used is Friedman analysis followed by a multiple comparison test if there are differences between treatments. The best decision making is done using the Bayes method. From the research results, it can be concluded that the fish meatballs with the three treatments were not significantly different.
Sistem Rekomendasi Anime Menggunakan Metode Singular Value Decomposition (SVD) dan Cosine Similarity
Authors: Sitanggang Altolyto
Published: August 2024

Sistem rekomendasi anime telah menjadi topik yang menarik dalam bidang teknologi informasi. Dalam penelitian ini, kami mengusulkan sebuah sistem rekomendasi anime menggunakan metode Singular Value Decomposition (SVD) dan Cosine Similarity. Metode SVD digunakan untuk mengurangi dimensi data dan meningkatkan akurasi rekomendasi, sedangkan Cosine Similarity digunakan untuk mengukur kemiripan antara anime. Dataset yang digunakan dalam penelitian ini adalah MyAnimeList, yang berisi informasi tentang anime dan preferensi pengguna. Hasil dari penelitian ini menunjukkan bahwa sistem rekomendasi yang diusulkan dapat memberikan rekomendasi anime yang lebih akurat dan relevan dengan preferensi pengguna.
Penerapan Media Pembelajaran Matematika Berbasis Macromedia Flash 8.0 untuk Meningkatkan Motivasi Belajar pada Siswa Sekolah Dasar
Authors: Maghfirah Hayatun , Rahmi Cukri , Ridho Abdurrahman , Putri Andriani , Astrianda Nica
Published: August 2024

Matematika merupakan salah satu materi yang menurut data kependidikan memiliki peminat yang dianggap sangat sedikit karna tingkat kesulitannya yang membuat sebagian siswa dan siswa tidak suka terhadap pembelajaran matematika. Penulis berharap aplikasi ini dapat membantu siswa sekolah dasar agar dapat lebih mudah memahami materi yang diberi oleh guru pada saat proses belajar mengajar serta juga menjadi aplikasi yang akan memberikan ketertarikan dan semangat belajar kepada para pelajar. Masalah yang dirumuskan pada laporan ini adalah; Bagaimana cara agar murid sekolah dasar dapat memahami pembelajaran matematika dengan lebih muda dimengerti dan Bagaimana cara meningkatkan semangat belajar bagi murid dan kualitas mengajar oleh pengajar atau guru. Manfaat dari penelitian ini adalah Penelitian dapat membantu mengidentifikasi permasalahan yang sering didapatkan dalam pembelajaran matematika dan mengindetifikasi metode yang dapat dilakukan untuk meningkatkan kualitas dan efektifitas dalam pembelajaran. Meningkatkan kualitas pengajaran: Penelitian dapat membantu mengidentifikasi kriteria yang harus dipenuhi oleh pengajaran matematika yang berkualitas, serta membantu guru dalam menyusun kurikulum dan metode pengajaran yang sesuai dengan kebutuhan siswa. Tujuan penciptaan aplikasi pembelajaran matematika di sekolah dasar secara umum meliputi: Meningkatkan ketertarikan siswa dalam belajar matematika, Meningkatkan kualitas belajar siswa, Meningkatkan keterlibatan siswa.