Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks by Gangcan SUN, Shuo WANG, Bing NING, Wanming HAO

“…In the face of the high power consumption issue caused by the dense deployment of base stations in cell-free networks, a wideband cell-free network system with sub-connected active reconfigurable intelligent surface (RIS) was proposed.Firstly, based on the constraints of maximum power consumption at the active RIS, amplification factor, and maximum power consumption at the base station, a joint precoding design problem for the base station and RIS was formulated to maximize the energy efficiency.To solve the non-convex problem, advanced techniques including alternating optimization, block coordinate descent, Lagrange dual reconstruction, and multidimensional complex quadratic transformation were applied to transform the original problem into multiple sub-problems.By iteratively solving each sub-problem, the solutions of the original problem was ultimately obtained.The simulation results validate the effectiveness of the proposed scheme.…”
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Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals by YU Hongyi, ZHA Renpeng, SHEN Zhixiang, SHEN Caiyao, HU Yunpeng

“…Aiming at the problem of optimal detection of mixed signal symbol sequences, on the basis of co-frequency mixed receiving baseband signal model, sufficient statistics for joint maximum likelihood blind detection were derived, and the optimal receiver design of “mixed waveform matched filtering and symbol rate dual sampling” was given. …”
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Sensemaking of Wisdom Pedagogy Research in Education by Maria Jakubik

“… Purpose: This paper asks: How has wisdom pedagogy research evolved in education from 1980 to 2022 and what are its characteristics and its possible future trends? Study design/methodology/approach: The study applied the science mapping technique of Bibliometric Analysis together with the three-step sensemaking approach for interpreting the quantitative findings. …”
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Internalizing Knowledge and Changing Attitudes to Female Genital Cutting/Mutilation by Inger-Lise Lien, Jon-Håkon Schultz

“…Information can be received, listened to and subsequently discarded. In order to design FGC-abandonment campaigns, the importance of the internalization process in order for the individual to make an attitudinal change must be understood.…”
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Adaptive Kalman Estimation in Target Tracking Mixed with Random One-Step Delays, Stochastic-Bias Measurements, and Missing Measurements by Sujuan Chen, Yinya Li, Guoqing Qi, Andong Sheng

“…Examples in three scenarios of target tracking are exploited to show the effectiveness of the proposed design approach.…”
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Probabilistic Behavior Analysis of MIMO Fading Channels under Geometric Mean Decomposition by Ping-Heng Kuo, Pang-An Ting

“…In order to simplify system design and implementation based on knowledge regarding probability behavior of MIMO-GMD schemes, the main objective of this paper is to statistically characterize the link gains and channel capacities that can be provided via GMD. …”
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Existing in hyperliminality: supporting educational developers with complex cross-disciplinary portfolios by Ann Gagne

“…It also suggests ways that reporting and administrative structures could help support a more holistic view of pedagogical development with more intentionality in the design of the role, that in turn will support a trauma-informed approach to this work, because without intentional support, cross-disciplinary roles can create trauma responses in educational developers. …”
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Calculation Method of the Interference Fit Connection Structure Fretting Slip Vector by Li Yamei, Dong Huimin, Zhang Rubian, Hao Lige, Qiu Jun, Wang Delun

“…When the interference fit connection structure being applied load,its contact surface can produce small relative slip amplitude.When the relative slip amplitude is in a certain range,the fretting fatigue life would be shortened.In order to evaluate the rationality of the joint of planet carrier interference fit connection structure,the condition of interference fit fretting slip is analyzed by using Workbench.Since Workbench cannot directly get the fretting slip amplitude of certain direction or loading step,therefore a method for extracting slip vector magnitude is proposed to analyze the slip amplitude of a certain direction or loading step.The results show that,in the loading stage,the fretting slip of back-end interference contact area is in critical value range,the fretting fatigue life is shorter.The analysis results provide a reference for structural design improvement.…”
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Analysis of Influence of Double-arc Flexspline Parameter on Flexspline Stress by Liang Ma, Bing Wu, Qi Shen, Guoyan Li

“…This study provides the basis for optimizing the structure design of the flexspline in the harmonic reducer， and provides the basic reference for the force distribution of the flexspline under no load and load.…”
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Simulation of the Load Sharing for the Four Gears Parallel Drive of Shield Machine Cutter by Wang Lihua, Zhang Chunyou, Wu Xiaoqiang

“…The dynamics equation of the four gears parallel drive system of shield machine cutter is established.The 3D model of the four gears parallel drive system is established by using the UG software.The dynamic process of the four gears parallel drive system is simulated by using the ADAMS software.Then the influence of meshing damping,meshing stiffness,backlash and distribution of driving gear on the load sharing are also analyzed.The research shows that the larger the difference between meshing stiffness and meshing damping is,the more uneven the load sharing is,when the driving load changes,backlash has a larger effect on the load balance,the different distributions of driving gear have rather a great impact on the stability of driven system.The results can provide theoretical basis for the design and manufacture of the four gears parallel drive system.…”
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Efficient three-party authenticated key agreement protocol based on chaotic map by Xiong LI, Fan WU, Jun-guo LIAO, Yu-zhen LIU

“…Chaotic map has been used in the design of key agreement protocol due to its excellent properties.In most of password three-party authenticated key agreement protocol based on chaotic map,the server needs to store a sensitive password table.It makes these protocols vulnerable to some password related attacks.Besides,it would be dangerous if the password table was leaked.To resolve the aforementioned problems,a new password three-party authenticated key agreement protocol based on chaotic maps was proposed.The server didn't need to maintain a password table,so the proposed scheme was free from password related attack.Compared with other related proto-cols,the proposed protocol not only enhances the security,but also improves the efficiency greatly.…”
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Low complexity hybrid precoding method in mmWave massive MIMO system by Jianwei XIANG, Xiulan YU, Xiaorong JING

“…A low-complexity hybrid precoding method was proposed to design the hybrid precoding for mmWave massive MIMO system.Firstly,an initial radio frequency(RF)precoding matrix was constructed based on the singular value decomposition.Then an updated RF matrix was constructed by placing the vector which was constructed by the biggest left singular vectors of the residual matrix onto the last column of the initial RF matrix.By multiple iterations,the resultant RF precoding matrix can be obtained and the digital precoding matrix was designed based on the least square criterion.Theoretical analysis and simulation results show that the proposed algorithm greatly outperforms the hybrid precoding method based on orthogonal matching pursuit(OMP)algorithm with much reduced computational complexity.Additionally,the proposed hybrid precoding method has almost the same performance as the full digital precoding method when the number of data stream is relatively less.…”
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Low cost rotating disc electrode built using accessible hand tools and 3D printing by Adam Shnier, Tarisai Velempini, Anzel Falch

“…The presented prototype is fabricated using a 3D printed design and common hand tools, providing clean and reproducible data. …”
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Analysis on Impact Stress Calculation of Second Combination of the Dual Ratchet Clutch by Shi Hao, Li Zhengminqing, Chen Liqiang

“…The research results can provide reference for the design of dual ratchet clutches.…”
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Gust Load Alleviation with Robust Control for a Flexible Wing by Xiang Liu, Qin Sun

“…In this paper, robust control laws are designed for a large flexible wing with uncertainty in Mach number and dynamic pressure. …”
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Weight-Loss Interventions for Hispanic Populations: The Role of Culture by Nangel M. Lindberg, Victor J. Stevens, Ruben O. Halperin

“…Most weight-loss interventions designed for the general population have been less successful with individuals from ethnic minorities and there is a pressing need to develop more effective interventions for these groups. …”
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ATTITUDES AND PERCEPTIONS OF MALAYSIAN ESL UNDERGRADUATES TOWARDS THE USAGE OF VLOGGING IN ENHANCING THEIR SPEAKING SKILLS by Nazirah Mahmud, Nurhazwani Yusoff, Najihah Mahmud

“…This research is also carried out to determine the advantage(s) and disadvantage(s) of using vlog for similar purpose. A quantitative design was employed in this study where a questionnaire was used to elicit data. …”
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Kinematic and Dynamic Analysis of an Eight-bar Mechanism in Carton Forming by Wan Xia, Yuanchao Deng, Junwei Xin

“…In the inner box forming station of the high-end carton， an eight-bar mechanism for bending rectangular cardboard strips is designed， and a theoretical analysis and a simulation are carried out to verify whether it can achieve double-sided bending during the carton forming process. …”
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Instrument Development of Determinants of Students Academic Performance Using Rasch Model Analysis by Istiqomah Istiqomah, Nida Hasanati

“…In this case, a quantitative design was used, with a random sampling technique utilized in selecting 415 students from the University of Muhammadiyah Malang. …”
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Hueter-Volkmann Law; How It Influences the Correction of Scoliosis Curves with Braces? by Mohammad Karimi

“…It is recommended that new brace designs be developed based on the principles of this law to minimize the impact of gravity on the spine. …”
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