Investigation of the Physical and Chemical Characteristics of the Zeolites of the Kholinsky Deposit by A. V. Bondarev, E. T. Zhilyakova, Natalya B. Demina, K. K. Razmakhnin

“…The sorption characteristics were studied using the ASAP 2400 device (Micromeritics, USA) according to the method. The construction of a virtual three-dimensional molecular model of the Zeolite was carried out using the program Java Applet Jmol.Results and discussion. …”
Get full text

Promoting EFL Learners’ Writing Skills via Reflection: The Case of Kolb’s Experiential Learning Cycle by سلمان اصحابی, مژگان رشتچی, مسعود سیری

“…Over sixteen sessions of instructions over eight weeks, the non-reflective group was taught using the traditional writing method; however, the reflective group was exposed to reflective writing instruction under Kolb’s Model. …”
Get full text

Development and Performance Evaluation of Central Pipe for Middle-Deep Geothermal Heat Pump Systems by Xiong Zhang, Ziyan Zhao, Zhengrong Guan, Jiaojiao Lv, Lu Cui

“…In this study, the optimal design of the central pipe in a middle-deep geothermal heat pump (MD-GHP) system is studied using the response surface method to improve the system’s coefficient of performance (COP) and operational reliability. …”
Get full text

Optimization of Sensor Positions and Orientations for Multiple Load Case Scenarios by Wacław Kuś, Waldemar Mucha, Iyasu Tafese Jiregna

“…The goal is to minimize the differences between maximal responses of the structure and detected responses by the sensors (for all possible load cases). The method is validated on a numerical model of a composite structure with 1–3 sensors under seven different load cases. …”
Get full text

Free- and Forced-Vibration Characteristic Analysis of a Double-Layered Cylindrical Shell with General Boundary Conditions by Jianghai Wu, Hongzhen Zhu, Yong Duan

“…This study develops a spectral element method (SEM) for dynamic modeling of multi-component shell systems by extending the vibrational governing equations of conical shells. …”
Get full text

Research on several key technologies of satellite Internet by Gengxin ZHANG, Yunfeng WANG, Xiaojin DIGN, Tao HONG, Ziwei LIU, Chen ZHANG

“…Satellite Internet has the ability of global seamless coverage, which will be an important part of the future land-sea-air-space integrated network.Firstly, the architecture of satellite Internet was discussed, which included the general composition of the system, networking mode, working process, etc.Secondly, the methods of modeling broadband and narrowband traffic were proposed to extract the uneven space-time distribution characteristics of traffic for satellite Internet.Then, the co-frequency interference of spectrum-sharing was analyzed, showing that there would be more serious co-frequency interference among different non-geostationary satellite orbit (NGSO) constellations in the future.Next, the schemes of both beamforming design for low earth orbit satellite and beam-hopping design for high orbit satellite were explored, which could significantly improve the system capacity through efficient mining of space-domain resources.Finally, the development prospect of several technologies of satellite Internet were given.…”
Get full text

Research on several key technologies of satellite Internet by Gengxin ZHANG, Yunfeng WANG, Xiaojin DIGN, Tao HONG, Ziwei LIU, Chen ZHANG

“…Satellite Internet has the ability of global seamless coverage, which will be an important part of the future land-sea-air-space integrated network.Firstly, the architecture of satellite Internet was discussed, which included the general composition of the system, networking mode, working process, etc.Secondly, the methods of modeling broadband and narrowband traffic were proposed to extract the uneven space-time distribution characteristics of traffic for satellite Internet.Then, the co-frequency interference of spectrum-sharing was analyzed, showing that there would be more serious co-frequency interference among different non-geostationary satellite orbit (NGSO) constellations in the future.Next, the schemes of both beamforming design for low earth orbit satellite and beam-hopping design for high orbit satellite were explored, which could significantly improve the system capacity through efficient mining of space-domain resources.Finally, the development prospect of several technologies of satellite Internet were given.…”
Get full text

An acoustic-optic confocal probe based photoacoustic and ultrasonic tracheal endoscopy for characterizing phantom and model of chronic obstructive pulmonary disease by Xiaowei Chen, Xue Wen, Bingyan Fang, Zhixiong Lei, Jiarui Chen, Lvming Zeng, Kedi Xiong, Weizhan Luo, Lan Zhang, Hongbo Fu, Shiyue Li, Jian Zhang

“…Integrated photoacoustic endoscopy and endoscopic ultrasound (PAE/EUS) are recognized as an effective method for detecting intestinal and intravascular diseases. …”
Get full text

Synthesis and swelling behavior of highly adsorbent hydrogel for the removal of brilliant green from an aqueous solution: Thermodynamic, kinetic, and isotherm models by Aseel M. Aljeboree, Ayad F. Alkaim, Shaymaa Abed Hussein, Mohammed Abed Jawad, Ishraq Hasan, Shahad Abdulhadi Khuder

“…This synthesis aimed to obtain a highly stable, biodegradable, biocompatible, and swellable superabsorbent hydrogel that is ecofriendly. A new method of preparation of hydrogel nanocomposite based on Castor plant leaves within swelling hydrogel networks is developed. …”
Get full text

Artificial neural network and response surface method-based optimization of unsteady natural convective heat transfer of Fe3O4-Engine Oil nanofluid in a trapezoidal enclosure by Umme Salma, Md. Shariful Alam, S. M. Chapal Hossain, Md. Nurul Huda, Tarikul Islam

“…The numerical results are used to train and evaluate the performance of both RSM and ANN models. A central composite design within the RSM framework is applied for statistical experimental design, exploring combinations of input parameter values. …”
Get full text

Nasal mRNA Nanovaccine with Key Activators of Dendritic and MAIT Cells for Effective Against Lung Tumor Metastasis in Mice Model by Li A, Cai X, Li D, Yu Y, Liu C, Shen J, You J, Qiao J, Wang F

“…In addition, the cytotoxicity, antigen-specific T cell activation, cytokines, protective ability, and therapeutic ability of the nanovaccine were assessed in a mouse tumor model. Further, the immune cell composition was evaluated in tumors.Results: The Mg/Al LDH-5-OP-RU/mRNA nanovaccine was efficiently delivered into lung-draining mediastinal lymph nodes (MLNs), and it activated dendritic cells (DCs) and mucosa-associated invariant T (MAIT) cells after intranasal administration. …”
Get full text

Description of regression models for predicting the dynamics of pink salmon returns in the Kamchatka region based on climate-oceanological and population-genetic data by A. V. Bugaev, O. B. Tepnin, N. Yu. Shpigalskaya, V. V. Kulik

“…All tested methods have a high level of determination, but simpler regressive models are more prospective for practical forecasting of general trend in dynamics of pink salmon stocks in the Kamchatka region due to very weak generalization ability of more complicated models.…”
Get full text

Stiffness analysis and structural optimization design of an air spring for ships by Yuqiang Cheng, Hua Gao, Jianguo Ma, Changgeng Shuai

Get full text

Regulatory Effect of Soybean-Derived Exosome-like Nanovesicles on Lipid Metabolism in a High Fat-Induced Caenorhabditis elegans Model by GAO Mingwei, ZHANG Ziwen, ZHU Zhenzhu

Get full text

Response Surface Methodology Optimization of Wear Rate Parameters in Metallic Alloys by Blessing Ngozi Goodluck Aliemeke, Lucky Charles, Peace Omoregie, Abdulrazak Momodu, Christopher Jerry, Emmanuel Akpan

“…The wear rate, a critical factor affecting the durability and performance of metallic components, served as the response parameter, while track diameter, sliding speed, and mass difference were considered as independent variables. The Central Composite Design (CCD) experimental method systematically explored the response surface and optimizes the wear rate. …”
Get full text

Evaluating the Efficacy of Gelatin-Chitosan-Tetraethyl Orthosilicate Calcium Hydroxide Composite as a Dental Pulp Medicament on  COX-2, PGP 9.5, TNF-α Expression and Neutrophil num... by Yulita Kristanti, Mh Busra Fauzi, Bidhari Pidhatika, Iwa Sutardjo Rus Sudarso, Retno Ardhani, Al-qatta Ghadah Abdulrahman, Endytiastuti Endytiastuti, Heni Susilowati, Juni Handajani

“…Materials and methods A total of 16 Wistar rat models of acute pulp injury were prepared and divided into two groups, treatment and control, 8 with each. …”
Get full text

Flexural behavior of RC beams strengthened with CFRP sheets and ECC layers by Xiaobing Hou, Ziyi Song, Han Song, Xingyao Wang, Junhua Guo, Songqiang Wan, Jingli Yang, Hongbo Xiao, Yanfen Gong, Long Liu

“…Abstract To further enhance the flexural capacity and ductility of reinforced concrete (RC) beams, this study proposes an innovative strengthening method. This approach, referred to as Carbon Fiber Reinforced Polymer (CFRP) and Engineered Cementitious Composite (ECC) strengthened beam (CESB), involves bonding CFRP sheets and ECC layers to the tension zones of RC beams for collaborative strengthening. …”
Get full text

MATHEMATICAL LOW-REYNOLDS MODELING OF HEAT EXCHANGE IIN TURBULENT FLOW IN FLAT CHANNELS WITH TURBULATORS SYMMETRICALLY LOCATED ON BOTH SIDES by I. E. Lobanov

“…Objectives The aim of the study was to simulate the heat transfer in flat channel with turbulators, symmetrically located on its both sides, depending on the channel's geometric parameters and the coolant flow modes followed by the verification of the obtained calculated data by the existing experiment.Methods The calculation was carried out on the basis of a theoretical method based on the solution of the Reynolds equations, closed with the help of the Menter shear stress transport model, by factored finite-volume method, as well as the energy equation on multiscale intersecting structured grids (Fast COmposite Mesh method, FCOM).Results A theoretical mathematical calculation model for intensified heat exchange in turbulent flow for a flat channel with turbulators, symmetrically located on both sides, depending on the channel's geometric parameters and coolant flow modes was generated. …”
Get full text

An engineered adipose formulation decreases hepatic inflammation and fibrosis in a rodent model of metabolic dysfunction-associated steatotic liver disease by Youngshim Choi, Yinyan Ma, Samson Tom, Alla Danilkovitch, Liqing Yu

“…Future studies focused on the optimization of AF composition, optimal dose and treatment regimen are warranted.…”
Get full text

Whole-brain 3D imaging of dopaminergic neurons and glial cells in the mouse model of Parkinson’s disease induced by 6-OHDA by Mengqi Wang, Linglong Xiao, Yifeng Shi, Yaping Wu, Xinyuejia Huang, Yang Wu, Yangyang Xu, Lin Bai, Wei Pan, Jie Zhang, Jie Zhang, Wei Wang

“…The aim of this study was to create pathological maps of PD and perform 3D visualization of the neural network.MethodsWe induced the PD model using 6-OHDA and a predesigned rotation test. …”
Get full text