Evaluation of diesel engine performance and emissions using biodiesel from waste oils synthesized with Fe3O4-SiO2 heterogeneous nano catalyst by Suleiman Ibrahim Shelash Mohammad, Asokan Vasudevan, K.D.V. Prasad, Inas Ridha Ali, Abhinav Kumar, Ankur Kulshreshta, Vikasdeep Singh Mann, I.B. Sapaev, Teku Kalyani, Mohammad Sina

“…This work aimed to develop Fe3O4/SiO2 as a cheap, magnetic, and easy separable catalyst for biodiesel production from waste oil by sono-catalytic transesterification. Methods: Fe₃O₄-SiO₂ was prepared using a modified Stober method and used as a heterogeneous catalyst in an ultrasound-assisted transesterification reaction to produce biodiesel. …”
Get full text

Screening, Identification, and Fermentation of <i>Brevibacillus laterosporus</i> YS-13 and Its Impact on Spring Wheat Growth by Wenjing Zhang, Xingxin Sun, Zele Wang, Jiayao Li, Yuanzhe Zhang, Wei Zhang, Jun Zhang, Xianghan Cheng, Peng Song

“…Quantitative evaluation using the molybdenum–antimony colorimetric method revealed soluble phosphorus concentrations of 21.24, 6.67, 11.73, and 17.05 mg·L⁻¹ when lecithin, ferric phosphate, calcium phosphate, and calcium phytate were used as phosphorus sources, respectively. …”
Get full text

First report of molecular detection of chicken astrovirus (CAstV) in chicks affected with enteric disease in Ecuador through a fast RT-qPCR assay based on SYBR® Green by Silvana Santander-Parra, Claudete Astolfi-Ferreira, Anthony Loor-Giler, Nikolaos C. Kyriakidis, Antonio J. Piantino Ferreira, Luis Núñez

“…Additionally, the LoD and LoQ were determined in 101 gene viral copies. The standard curve showed an efficiency of 97.3% and a melting curve showed a single peak without any alterations and a melting temperature of 77.5 °C. …”
Get full text

EXERCISE THERAPY ON UNSTABLE SUPPORT AND HYDROKINETIC THERAPY IN THE REHABILITATION OF PATIENTS WITH BACK PAIN by E. V. Filatova, O. A. Boulakh, E. V. Polkovnikova, N. M. Privalova, Kh. M. Malaev

“…A comparative analysis of the efficiency of different procedures of exercise therapy is carried out: hydrokinesitherapy and therapeutic gymnastics with the use of exercise on an unstable support (stabiloplatform) depending on the sex of patients.Materials and methods. …”
Get full text

Multimodal Imaging of Brain Metastasis-Derived Extracellular Vesicles Using Superparamagnetic Iron Oxide Nanoparticle Labeling by Feginn Berle B, Juliussen S, Castilho Á, Solel E, Sdik Saed H, Vanderpoorten O, Lunavat TR, Thorsen F, Rigg E

“…Detection sensitivity was determined using agar phantoms, and in vivo tracking was validated through intramuscular injections in mice.Results: Uncoated 5 nm SPIONs demonstrated superior labeling efficiency, successfully marking over 90% of cells within 24 hours without significantly affecting cell growth. …”
Get full text

UAV deployment and caching scheme based on user preference prediction by Jiazhi REN, Hui TIAN, Shaoshuai FAN, Yuanzhuo LIN, Gaofeng NIE, Jilong LI

“…In order to design an efficient edge caching policy considering spatial heterogeneity and temporal fluctuations of users’ content requests,a proactive caching scheme was proposed with UAV’s deployment location design based on user preference prediction.Firstly,each user’s preference characteristics were predicted based on file similarity and user similarity,and the request time and user location were also predicted when a content request occurs.Thereafter,on the basis of the predicted geographical location,request time and user preference,each UAV’s deployment location and the corresponding content placement were determined by virtue of clustering method based on SOM and AGNES.Simulation results show that the proposed scheme outperforms other three comparison schemes in terms of hit ratio and transmission delay.Furthermore,the results also reveal that content preference is correlated with different user features by different weights.Accordingly,different impact weights should be matched with different user features.…”
Get full text

Facile Preparation of Silver Halide Nanoparticles as Visible Light Photocatalysts by Linfan Cui, Tifeng Jiao, Qingrui Zhang, Jingxin Zhou, Qiuming Peng

“…In this study, highly efficient silver halide (AgX)-based photocatalysts were successfully fabricated using a facile and template-free direct-precipitation method. …”
Get full text

Risk Assessment of Clinical Care in Emergency Departments ByHealth Failure Modes and Effects Analysis by Leila Moradi, Abdolhossein Emami Sigaroudi, Majid Pourshaikhian, Mahmoud Heidari

Get full text

Stability Rating of Mine Rock Slope Based on Artificial Intelligence by Hao Li

“…In recent years, rapidly developing artificial intelligence methods not only have the characteristics of highly nonlinear mapping, self-organization, and self-adaptation but also mostly apply probability optimal strategy and, hence, bypass the problem of solving function derivatives, having higher efficiency and feasibility in solving the problems of global optimal solution and local optimal solution. …”
Get full text

Investigation of Engine Lubrication Oil Quality Using a Support Vector Machine and Electronic Nose by Ali Adelkhani, Ehsan Daneshkhah

“…Monitoring the quality of engine oil improves engine efficiency and reduces engine maintenance costs. Several methods have been proposed for this purpose; however, most of them take too long to test oil quality. …”
Get full text

Strategic Directions for the Development of Institutional Management Mechanisms and Adaptation of the Population of the Region to Them by N. D. Kremlev

“…Hypothesis – the effectiveness of strategic directions for the development of institutional mechanisms for managing the region and adapting the population to them is proposed to be carried out on the basis of balance sheet structures.Methods: balance method, index method, structural method, comparative estimates and methodology of official statistics.Results. …”
Get full text

An Environment Recognition Algorithm for Staircase Climbing Robots by Yanjie Liu, Yanlong Wei, Chao Wang, Heng Wu

“…Moreover, significant errors in step geometry estimation and low mapping accuracy can hinder the ability of deformed wheel-based mobile robots to climb stairs, negatively impacting the efficiency and success rate of task execution. To solve the above problems, we propose an effective LiDAR-Inertial-based point cloud detection method for staircases. …”
Get full text

Study on Injection Allocation Technology of Layered Water Injection in Oilfield Development by Xianing Li, Bing Hou, He Liu, Hao Guo, Jiqun Zhang

“…Reservoir heterogeneity, fluid property variations, and permeability contrasts across different geological layers result in significant disparities in water absorption capacities during oilfield development, often leading to premature water breakthrough, uneven sweep efficiency, and suboptimal waterflooding outcomes. The accurate determination of layer-specific water injection volumes is critical to addressing these challenges. …”
Get full text

Feature Parameters Computation of Underground Coal Mining Space Coupled Probability Integral Model With SBAS-InSAR Subsidence Data by Yujie Wang, Jin Zhang, Yahong Liu

“…However, most of the existing localization methods are geophysical techniques, whose efficiency seems to be a challenge. …”
Get full text

Methodology to evaluate the balance in multicomponent economic systems of regions by Юрий Мальцев

“…Tasks are as follows: to plot a balance evaluation function, to develop a balance evaluation algorithm for the multicomponent economic systems in the regions, and to assess the balance of economic systems for the regions of the Russian Federation. Materials and Methods. The balance evaluation methodology is determined by the fact that a region is seen to be a system with many interacting components or N-components. …”
Get full text

Enhancing Sink-Location Privacy in Wireless Sensor Networks through -Anonymity by Guofei Chai, Miao Xu, Wenyuan Xu, Zhiyun Lin

“…Furthermore, to solve k -anonymity sink-location problems more efficiently, we develop an artificial potential-based quasi-optimal (APQO) method that is of linear time complexity. …”
Get full text

The impact of acid activation on manganese ion extraction from natural water and industrial wastewater by L. A. Pimneva, A. A. Zagorskaya, E. V. Zherebchuk

“…This method can remove contaminants to any desired residual concentration. …”
Get full text

On Robustness to a Topological Perturbation in Fluid Mechanics by Abdelbari Merwan, Nachi Khadra, Sokołowski Jan, Novotny Antonio Andre

“…Numerical examples illustrate the efficiency of the proposed topological derivative method.…”
Get full text

Hybrid shifted polynomial scheme for the approximate solution of a class of nonlinear partial differential equations by Adewale E. Adenipekun, Adeniyi S. Onanaye, Olawale J. Adeleke, Muideen O. Ogunniran

“…Two instances were examined using the numerical method to determine the method’s efficiency in terms of its reliability, effectiveness, and accuracy. …”
Get full text

Optimal Viewpoint Assistance for Cooperative Manipulation Using D-Optimality by Kyosuke Kameyama, Kazuki Horie, Kosuke Sekiyama

“…This study proposes a D-optimality-based viewpoint selection method to improve visual assistance for a manipulator by optimizing camera placement. …”
Get full text