Ground Vibration Analysis of Railroad Dynamic Loads on Rail Structure by Rini Kusumawardani, Mufita Aulia Zelin, Arief Kusbiantoro

“…The railroad structure consists of rail steel, sleepers, fastening, ballast, sub-ballast and subgrade. The load of the passing train at a certain speed can produce vibrations channeled through the train wheels to the railway steel to be forwarded to the sleepers then to the ballast and distributed to the subgrade. The amount of vibration caused by the train can be seen from the value of the acceleration, amplitude and frequency of the vibration. In this study, the accelerometer sensor was used to detect the magnitude of the vibration acceleration. The vibration acceleration data was then processed using Geopsy software to obtain the value of natural frequency and vibration amplitude using the HVSR (Horizontal to Vertical Spectral Ratio) method. The value of acceleration due to railroad vibration of 0.14 g - 0.64 g with a position placed 1.5 m sensor from the edge of the rail. The biggest vibration acceleration is 0.26 g x direction, 0.39 y direction and 0.29 z direction caused by Maharani trains that pass at a speed of 65 km / h and a load of 728 tons. The natural frequency of vibration obtained value 2.4077 Hz - 5.392 Hz. The highest natural frequency was caused when the Maharani train, which was 5.392 Hz. Train speed and load affected the vibration of the rail structure. The acceleration of vibration increased when the train speed and load increased…”
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Research on health monitoring of concrete structure based on G-S-G by Jiaqi Wang, Hongbi Kang, Kexin Li

“…Abstract An improved concrete structure health monitoring method based on G-S-G is proposed, which fully combines an optimized Gray-Level Co-occurrence Matrix (GLCM) with an improved Self-Organizing Map (SOM) neural network to achieve accurate and real-time concrete structure health monitoring. …”
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Water biological resources in the structure of environmental problems of energy facilities by M. L. Kalaida, A. R. Saetov

“…A comparative analysis of our own research and literature data on the use and evaluation of the effectiveness of fish protection structures (FPS) has been carried out. …”
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The amount and structure of geriatric physicians' educational activities in continuing education by O. F. Prirodova, M. A. Fomina, Yu. S. Prytkova

“…To investigate the volume and structure of educational activity of specialists admitted to the specialty of geriatrics in continuing education.Material and methods. …”
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The role of biotransformation and chemical structure of drugs in the diagnosis of drug allergies by T. N. Myasnikova, V. V. Smirnov

“…As a result of skin testing, LA for the amino group of beta-lactams was confirmed; No data have been obtained for LA on the beta-lactam ring, clavulanic acid, or macrolides.…”
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STRUCTURE OF INVESTMENT COSTS OF DAIRY SHEEP BREEDING FARMS IN BULGARIA by Tsvetana HARIZANOVA – METODIEVA, Nikola METODIEV

“…The purpose of the research was to analyze the structure of the investment costs for the establishment of dairy sheep breeding farms in Bulgaria, as well as to explore some indicators, characterizing the activity of the farms under this study. …”
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Peridynamic Model of Vibrations in a Two-Dimensional Periodic Structure by Yuldasheva, A.V.

“…The study examines a peridynamic model on a two-dimensional periodic structure related to graphene -a two dimensional allotropic form of carbon. …”
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Machine learning-based fatigue lifetime prediction of structural steels by Konstantinos Arvanitis, Pantelis Nikolakopoulos, Dimitrios Pavlou, Mina Farmanbar

“…In this study, a dataset containing experimental data from various structural steels is used. Through preprocessing and feature selection, four techniques are explored: Polynomial Regression, Support Vector Regression (SVR), XGB Regression and Artificial Neural Network (ANN), aiming to identify the most effective algorithm. …”
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Picture Fuzzy Concept Lattice Models for Knowledge Structure Analysis by Chen Zhang, Zengtai Gong

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Examination of Structural Characteristics and Biosecurity of Sheep Farms in Niğde Province by Özgür Tarık Şen, Murat Durmuş, Nazan Koluman

“…The aim was to examine the structural features and biosecurity practices of sheep farms operating in Niğde province. …”
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Chronic Toxoplasma infection modifies the structure and the risk of host behavior. by Cristina Afonso, Vitor B Paixão, Rui M Costa

“…These results suggest that brain cysts in animals chronically infected with Toxoplasma alter the fine structure of exploratory behavior and risk/unconditioned fear, which may result in greater capture probability of infected rodents. …”
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Microvascular and Structural Characterization of Birdshot Chorioretinitis in Active and Inactive Phases by Aina Moll-Udina, Marina Dotti-Boada, Anabel Rodríguez, Maite Sainz-de-la-Maza, Alfredo Adán, Victor Llorenç

“…Based on their clinical activity at both timepoints, eyes were divided into three subgroups: active-to-inactive (A-I), consistently active (A-A), and consistently inactive (I-I). Structural OCT, OCT-angiography (OCT-A), and ultra-widefield imaging were utilized. …”
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COMPARATIVE CHARACTERISTICS OF THE STRUCTURE OF THE VENOUS WALL OF THE EXTREMITIES OF HUMANS AND DOGS by Дмитрий Алексеевич Евсюков, Антон Юрьевич Цуканов, Юрий Тихонович Цуканов, Вера Павловна Дорофеева, Илья Олегович Снитко, Мурат Ханапиевич Аликберов, Александр Николаевич Кузовкин, Илья Евгеньевич Винник

“…At the same time, the identified difference in structure cannot serve as a reason for refusing to interpolate data when modeling varicose veins in dogs in an experiment.…”
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Dynamics of the genetic structure of dairy cattle population in the Sverdlovsk region by Lihodeevskiy G.A., Bogatova P.S., Lihodeevskaya O.E., Modorov M.V.

“…Comparative groups included genotypes of Black Pied, Kholmogory, Tagil, Holstein, and Jersey breeds. Data analysis employed PCA, fastSTRUCTURE, and genetic differentiation assessment (FST). …”
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Model and structure of the network internet of things for monitoring milk quality by U. A. Vishniakou, A. H. Al-Masri, S. K. Al-Haji

“…A multi-agent model of IoT network and the structure of such an IoT network for monitoring the quality of milk from different farms is presented. …”
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SECTORAL STRUCTURE OF SMALL AND MEDIUM BUSINESS IN RUSSIA: STATISTICAL ANALYSIS by Yu. S. Pin’kovetskaya

“…The research urgency is caused by the implementation of the Federal strategy of development of small and medium business for the period up to 2030.The purpose of the study: determination of the regularities characteristic of the sectoral structure of small and medium business. Objectives of the study: to establish the patterns and trends, characterizing the current structure of small and medium business by types of economic activity and the number of their employees, the definition of specific indicators of the number of employees per enterprise, as well as estimation of the distribution of these parameters on the aggregates of entrepreneurial structures in the regions. …”
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Diagnostics of structural integrity violations of avionics during impact tests by S. U. Uvaysov, A. V. Dolmatov, The H. Vo, Ngoc T. Luu, Cong D. Nguyen

“…SAU are hermetically sealed structures, making it difficult to assess their technical condition. …”
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Analysis of the intellectual structure of knowledge regarding drought vulnerability assessment by Zeinab Asadpourian, Yaser Mohammadi

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Carbon Footprint, Financial Structure, and Firm Valuation: An Empirical Investigation by István Hágen, Amanj Mohamed Ahmed

“…It also seeks to answer the question on whether the financial structure of a firm moderates the correlation between carbon emissions and firm value. …”
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The Analysis of the Structural Parameters of Magnetic Fluids with SAXS and MGA Techniques by P.A. Ryapolov, V.M. Polunin, A.P. Kuzmenko, S.G. Emelianov, E.Y. Orlov, A.S. Chekadanov

“…Purpose – to study the structural parameters of the magnetite particles surrounded by the surfactant in the various carrier liquids using SAXS and based on the magnetization curve obtained applying ballistic method. …”
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