STUDY ON IMPROVEMENT FOR THE EXCITATION PERFORMANCE OF BV500 TYPE CONTROLLED SEISMIC SOURCE VIBRATOR PLATE BASED ON TOPOLOGY OPTIMIZATION METHOD by HUANG Zhiqiang, FU Mingwei, XI Yuxi, LI Gang, WANG Ruohao, PU Wei

“…During the operation of the BV500 type controlled seismic source vibrator in Sichuan and Chongqing areas, due to the improper plate design, the vibration energy down-transfer rate is low and the excitation signal distortion is serious.Therefore, the continuum topology optimization method was introduced, and a variable density method of the solid isotropic material with penalization (SIMP) model was used to optimize the design of BV500 controlled seismic source vibrator plate from two aspects — reducing mass and increasing stiffness, and an “octagonal I-steel-20a” plate was innovatively developed.After optimization, the mass of the plate was reduced by 45.29%, and the stiffness of the plate was increased by 79.92%, the vibration performance of the plate before and after optimization is studied.The simulation results show that compared with the original aluminum alloy plate, the energy down-transfer rate of the “octagonal I-steel-20a” plate increases by 15.11%，the displacement amplitude of the ground surface contact center point increases by 43.74%, and the amplitude of the interaction force increases by 40.56%.The field experiment shows that when the “octagonal I-beam-20a” plate is excited, the effective value of the average vibration velocity of the near-field signal of the detector is increased by 22.23%, and the effective value of the average vibration velocity of the far-field signal of the detector is increased by 39%, the law is consistent with the numerical simulation conclusion of controlled seismic source road excitation.The excitation performance of the “octagonal I-beam-20a” plate is better than that of the original aluminum alloy integral plate, which effectively improves the road excitation effect of BV500 type controlled seismic source in Sichuan and Chongqing areas.…”
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Analysis of Biological Samples in a Contemporary Laboratory Practice (Review) by I. I. Miroshnichenko, Y. E. Shilov

“…In the present publication highlights the key points of the main stages of development of methods for determining trace amounts of drugs and metabolites in biological samples using chromatographic and chromatography-mass spectrometry methods. …”
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Technology criteria for the manufacturing of Rebamipide film-coated tablets by G. V. Trusov, B. V. Brovchenko, Z. M. Kozlova, I. I. Krasnyuk

“…It was found out experimentally that Rebamipide substance has polymorphism, high melting point, needle-shaped crystals, poor bulkiness and compactability, which was confirmed by the use of SeDeM method.…”
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Maximal mouth opening is a simple method to evaluate the treatment outcome of temporomandibular joint arthritis in patients with juvenile idiopathic arthritis by Mia Huhtanen, Katriina Mikola, Anu Kiukkonen, Tuula Palotie

“…Furthermore, this study aimed to ascertain the prevalence of TMJ arthritis in JIA patients and investigate the potential impact of specific factors. Material and methods: Between 2015 and 2019, a total of 194 JIA patients who received treatment at the Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, Finland were included in the study. …”
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Structural, Surface Morphological, and Optical Properties of Pulsed Laser Deposited MoS2/ZnO Microrods for Optoelectronic Applications by Ahmad Kamalianfar, Mahmoud Naseri

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Modeling of Bending Non-Isothermal Viscoelasticviscoplastic Dynamic Deformation of Shallow Reinforced Shells. Part 1. Problem Formulation and Solution Method by Andrei P. Yankovskii

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Evaluation and estimation of changes in water quality using zoning map and researchers-developed software (case study: Pir-Bazar river) by Majid Homami, Seyed Ahmad Mirbagheri, Seyed Mehdi Borghei, Madjid Abbaspour

“…As a reuslt evaluation and estimation of changes in water quality the mouth area of the main feeding river  estuary in the Anzali wetland (the Peer-bazar River) is in the first priority. Materials and methods: The present study aimed at evaluating the eutrophication status and prediction of temporal-spatial changes in nutrients concentrations, such as ammonium-nitrogen (N-NH3), nitrate (N-NO3), total nitrogen (TN), phosphorous (PO4-3), TP, in the estuary of Pir-Bazar river as the main and most important stream feeding the Anzali International Wetland. …”
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HAZARD ANALYSIS AND CRITICAL CONTROL POINTS IMPLEMENTATION IN AMPLANG PROCESSING by Zulfatun Najah, Nia Ariani Putri, Taufik Hidayat, Zulmaneri Zulmaneri

“…Amplang is produced by SMEs (Small and Medium Enterprises), which aremost of them still need to improve theirstandard processing method.  The quality standards of processing amplang in SMEs can be improved through implementation of quality assurance. …”
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Thermal Elastohydrodynamic Lubrication Analysis of Point Contact for Aviation Transmission by Lu Fengxia, Long Yushi

“…The rolling bearings are widely used in the aviation transmission because of the low friction coefficient,high load ability and high reliability.It’s of great significance to study the life and contact analysis of the bearing under heavy load and severe lubrication based on the numerical analysis of thermal elastohydrodynamic lubrication（EHL） in point contact.The numerical calculation of isothermal EHL and thermal EHL models in point contact are carried out by adopting compound direct iteration method.The oil film pressure,thickness and temperature are obtained by means of Fortran,Origin and Matlab software.Synthetically considering the effect of load,speed,material and ellipticity parameter on EHL in point contact,the certain theoretical basis for heavy-load aviation transmission system is provided.…”
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Construction and Performance Evaluation of a Flow Meter Based on Thermal Pulse to Measure Plant Sap Flow in Vascular Tissues by M. Teimorzadeh, J. Baradaran Motie, A. Rohani, Y. Selahvarzi

“…These techniques typically require manual intervention, which is time-consuming and resource-intensive, thereby restricting their application mainly to research environments.Materials and MethodsA sap-flow meter device was developed to generate a heat pulse in a tree trunk at 15-minute intervals. …”
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Effect of Meyerozyma caribbica on the quality of 'Cabernet Sauvignon' dry red wine by LI Yueyue, HU Haixia, WANG Yanrong

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Mathematical Model of Drilling Mud Movement along a Shale Shaker Screen by I. Yu. Kichkar

“…The objective of this article was to simulate the throughput of a drilling shale shaker under real conditions by calculating the movement of drilling mud along a vibrating screen using its previously obtained specific throughput capacity.Materials and Methods. When creating a mathematical model of the full throughput capacity of a shale shaker, a previously known mathematical model of fluid flow in an open channel and a finite-dimensional approximation in the form of a sequence of sections of concentrated containers connected by hydraulic conductivities (by analogy with the approximation of long electrical lines and extended gas pipelines by the finite element method) were used. …”
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Assessment of cold chain and logistics management practices in the Universal Immunization Programme: A mixed method study in the West district of Tripura by Ishita Guha, Puspita Guha, Mrinmoy Pal, Ranjan Biswas

“…In Quantitative method Cross-sectional and in Quantitative method In-depth interviews was conducted among Cold chain handlers till data saturation over 3 month period in 28 nos of cold chain points of West Tripura district. …”
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The results of the development of a personalized method of mandibular foramen searching in the aspect of mproving the efficiency and safety of inferior alveolar nerve block

“…It was the development, anatomical and clinical evaluation of the effectiveness of the individual method of finding the projection of the mandibular foramen on the ramus of mandible.Materials and methods. …”
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Backfill-strip mining and CO2 mineralization sequestration in coal mine goaves: A synergetic method and its key technologies by Mengbo ZHU, Lang LIU, Shuangming WANG, Baoning WEI, Ruoyu RONG, Wenzhong ZHANG, Dengdeng ZHUANG, Qifeng JIA

“…To achieve the practical application of the synergetic method, it is necessary to make breakthroughs in key technologies including geological siting, the building and stability-orientated regulation of underground gas storage (UGS) facilities for CO2 sequestration, CO2 mineralization combined with desulfurization/denitrification for backfilling material preparation, and CO2 charging simulation and optimization, followed by the development of comprehensive schemes. …”
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Influence and Correction of Refraction Phenomenon in Liquid Contact Angle Measurement in Capillary Tube by Weixiu Shi, Mengmeng Ran, Lisheng Pan

“…A new method for measuring liquid contact angle has been proposed, which was used to calculate the actual coordinate points and fit the actual vapor–liquid interface line of the liquid. …”
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Peculiarities of Modeling a Specialized Computing System by G. A. Zvonareva, D. S. Buzunov

“…When developing distributed computing systems with parallel data processing, there is a problem of assessing the impact of workload values and structure on its performance indexes. One of the key points in this problem is to assess the impact of various prioritization disciplines on the time characteristics of emerging request queues in the system, for which statistical methods of data analysis are used.The goal of this study is to develop a method for constructing a simulation model that will allow estimating the time characteristics of the system depending on changing workload values and a priorityprocessing algorithm. …”
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Determination of depth to basement using natural electric field method (NEFM) in a proposed weir at Iju-Itaogbolu, SW Nigeria by Philomina Nkeonye Okanigbuan, Edore Festus Omozeje, Oluwatoyin Francis Ijasan, Uyiosa Osagie Aigbe

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Development of dynamic gas generation system for ultratrace amounts of acetone at parts-per-trillion levels with low temperature permeation method by Reiji Aoyagi, Takahiro Arakawa, Kenta Iitani, Kohji Mitsubayashi, Yoshika Sekine, Yuichiro Kaifuku

“…The calculated concentrations obtained from the permeation rate and three setting points of the carrier gas flow rate (20.26, 38.26, and 74.86 pptv) agreed with those analyzed by the dinitrophenylhydrazine derivatization–high-performance liquid chromatography method (20.33, 37.85, and 81.08 pptv) within the level of each expanded uncertainty of 3.0–5.1%. …”
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YOLO-SegNet: A Method for Individual Street Tree Segmentation Based on the Improved YOLOv8 and the SegFormer Network by Tingting Yang, Suyin Zhou, Aijun Xu, Junhua Ye, Jianxin Yin

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