RIS-based indoor wireless communication signal enhancement system by Kui TANG, Qi HU, Junming ZHAO, Ke CHEN, Yijun FENG

“…By utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial wireless signals were weak.First, a RIS unit cell with dynamically tunable phase characteristics was designed, and the dynamic change of the 2 bit reflection phases was realized by switching the working states of the two active diodes.Then, experiments were conducted to verify that the proposed RIS could dynamically reshape the beam direction.Finally, a host computer and field programmable gate array (FPGA) were used to realize the intelligent control of the coding sequences applied onto the proposed RIS.By changing the spatial phase distribution on the RIS aperture, the output beam could be controlled in real-time.By traversing the pre-loaded coding sequences, the enhancement of received signal in indoor wireless environments had been experimentally demonstrated.Both simulation and experiment results verify that the proposed RIS system can effectively and dynamically improve the quality of the indoor wireless signals.The received signal is increased by an average of 8.9 dB, with a maximum of 22 dB.The proposed work may provide basic hardware technical support for the optimization of 5G and the next-generation communication networks.…”
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Sense of agency at a temporally-delayed gaze-contingent display. by Junhui Kim, Takako Yoshida

“…Participants conducted a visual search for an array of nine Chinese characters within a temporally-delayed gaze-contingent display, blurring the peripheral view. …”
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Expanded Gram-Negative Activity of Marinopyrrole A by Clare F. Euteneuer, Brianna N. Davis, LeeAnna M. Lui, Andrew J. Neville, Paul H. Davis

“…Known for its in vitro effects on Gram-positive organisms, the drug-like small molecule marinopyrrole A was re-examined for the potential of broader efficacy against a wider array of microbes. …”
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Survey on Sildenafil, Tadalafil, and Vardenafil Concentrations in Food Supplements for Erectile Dysfunction by Elina Petkova-Gueorguieva, Stanislav Gueorguiev, Hristina Lebanova, Vasil Madzharov, Anna Mihaylova

“…The presence of sildenafil, tadalafil, and vardenafil was determined using the generated ultraviolet (UV)-spectra and mass-spectrometry (MS)-spectra as well as chromatograms produced by the photodiode array (PDA)-detector and ion trap MS-detector. The results were processed by Xcalibur ver. 2.0.7. …”
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Investigation on microstructure, hardness, wear behavior and fracture surface analysis of Strontium (Sr) and Calcium (Ca) content A357 modified alloy by statistical technique by K. Ganesh, K. Hemachandra Reddy, S. Sudhakar Babu, R. Suresh

“…Test trials were conducted according to Taguchi technique. L27 array was implemented for evaluation of data. The effect of varying parameters (factors) on wear loss and COF were analyzed using ANOVA (Analysis of Variance) method. …”
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Direction of Arrival (DOA) Estimation Using a Deep Unfolded Learned Iterative Shrinkage Thresholding Algorithm (LISTA) Network in a Non-Uniform Metasurface by Xinyi Niu, Xiaolong Su, Lida He, Guanchao Chen

“…To address these issues, we optimize a non-uniform metasurface array to reduce hardware costs and mutual coupling effects while enhancing resolution. …”
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Research on Performance of Chaotic Pulse Position Modulation Photon Counting LiDAR System by JIA Yihan, ZHANG Xuanwei, WANG Bingjie, XU Hang, LIU Li, LI Jingxia

“…A CPPM signal generator is designed using a Field Programmable Gate Array (FPGA) to directly modulate the laser and generate optical-domain chaotic pulse signals. …”
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UDAP: ultra-lightweight dot product-based authentication protocol for RFID systems by Ziad Akiirne, Abdellah Sghir, Driss Bouzidi

“…To measure the efficiency of our proposed protocol, an Field-Programmable Gate Array (FPGA) implementation was carried out, allowing for precise evaluation of the resource consumption of the key function used in our protocol. …”
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Improved sparse domain super-resolution reconstruction algorithm based on CMUT. by Zhiqing Wei, Yanping Bai, Rong Cheng, Hongping Hu, Peng Wang, Wendong Zhang, Guojun Zhang

“…A novel breast ultrasound tomography system based on a circular array of capacitive micromechanical ultrasound transducers (CMUT) has broad application prospects. …”
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ELECTRONIC BAND STRUCTURE OF THE ORDERED Zn0.5Cd0.5Se ALLOY CALCULATED BY THE SEMI-EMPIRICAL TIGHT-BINDING METHOD CONSIDERING SECOND-NEAREST NEIGHBOR by Juan Carlos Salcedo-Reyes

“…Usually, semiconductor ternary alloys are studied via a pseudo-binary approach in which the semiconductoris described like a crystalline array were the cation/anion sub-lattice consist of a random distribution of thecationic/anionic atoms. …”
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Numerical simulation of a borehole sidewall acoustic transmitter for single-well reflection imaging logging用于单井反射成像测井的井眼侧壁声发射器的数值模拟 by Jianlin Ben, Hong Zhang, Lingfan Chen

“…The findings suggest that the borehole sidewall transmitter can potentially improve the effectiveness of reflected P-wave imaging logging in future applications.…”
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Missile Strike Simulation in a Video Game Engine by Oleksandr Toshev, Oleksii Maksymov, Maksym Kiriakidi, Maksym Maksymov

“…Secondly, it seeks to refine algorithms for determining the required number of missiles to prevent rival player advances, thereby maximizing operational efficiency and effectiveness in defensive missions.…”
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THE CLIMATE CRISIS IN AFRICA AND PATHWAYS TO SUSTAINABILITY – A REVIEW by Folarin Olawale Saburi

“…The continent faces a diverse array of crises associated with extreme weather events, including increasingly frequent and severe floods and droughts. …”
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Impacts of Macronutrients on Gene Expression: Recent Evidence to Understand Productive and Reproductive Performance of Livestock by Md. Mahmodul Hasan Sohel, Yusuf Konca, Mehmet Ulas Cinar

“…In order to identify the effects of nutrients on gene expression and to assess the interactions between genes and nutrition by means of various cutting-edge technologies, the interdisciplinary branch ‘Nutrigenomics’ was created. …”
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Indoor Measurement of Contact Stress Distributions for a Slick Tyre at Low Speed by Gabriel Anghelache, Raluca Moisescu

“…The triaxial contact stress distributions have been measured using the complex transducer containing a transversal array of 30 sensing pins covering the entire contact patch width. …”
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Innovative Adsorbents for Pollutant Removal: Exploring the Latest Research and Applications by Muhammad Saeed Akhtar, Sajid Ali, Wajid Zaman

“…This review provides a comprehensive analysis of recent advancements in innovative adsorbents designed to address these challenges. It explores a wide array of non-conventional adsorbent materials, such as nanocellulose, metal–organic frameworks (MOFs), graphene-based composites, and biochar, emphasizing their sources, structural characteristics, and unique adsorption mechanisms. …”
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A Software-Defined Radio Platform for Teaching Beamforming Principles by Annamaria Sârbu, Robert Papa, Angela Digulescu, Cornel Ioana

“…The testing and validation processes were conducted using a 3.5 GHz antenna array in both indoor and outdoor environments. The results demonstrated the system’s effectiveness in achieving the desired beam orientations, with experimental results aligning closely with simulation and theoretical predictions. …”
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Enoch Olujide Gbadegesin, Yunusa Kehinde Salami and Kola Abimbola (eds.) Exploring the Ethics of Individualism and Communitarianism. Harvest Day Publications ,2016,365p. by Adeshina Afolayan

“…The 16-chapter volume has a sufficiently wide array of significant scholars whose different perspectives provide a wide context within which to situate the brilliant scholarship of Segun Gbadegesin. …”
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Microarray Evidences the Role of Pathologic Adipose Tissue in Insulin Resistance and Their Clinical Implications by Sandeep Kumar Mathur, Priyanka Jain, Prashant Mathur

“…Microarray is a powerful technique of assessment of gene function by measuring transcription of large number of genes in an array. This technique has several potential applications in understanding pathologic adipose tissue. …”
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Industrial historical objects transformation as a tool of the regional policy of the EAEU countries by M. V. Olshanskaya

“…The reuse of industrial buildings allows obtaining several effects: increasing the life cycle of industrial buildings, the territory attractiveness, the regional investment attractiveness, new jobs, and improving the environment. …”
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