In this paper, we consider max-min fairness for a downlink two-user multi-input single-output (MISO) system with imperfect channel state information available at transmitter (CSIT) taking into account the total power constraint and physical layer security. Considering worst-case uncertainty potential eavesdropper (PE), study robust secure beamforming algorithm design which maximizes minimum achieved secrecy rate among single-antenna legitimate users. contrast to existing schemes adopted in...

This paper considers a formulation of the robust adaptive beamforming (RAB) problem based on worst-case signal-to-interference-plus-noise ratio (SINR) maximization with nonconvex uncertainty set for steering vectors. The consists similarity constraint and (nonconvex) double-sided ball constraint. SINR is turned into quadratic matrix inequality (QMI) using strong duality semidefinite programming. Then linear (LMI) relaxation QMI proposed, an additional valid Necessary sufficient conditions...

Abstract Cellular energetics plays an important role in tissue regeneration, and the enhanced metabolic activity of delivered stem cells can accelerate repair regeneration. However, conventional hydrogels with limited network cell adaptability restrict cell–cell interactions activities. In this work, it is shown that a cell‐adaptable hydrogel high dynamics enhances glucose uptake fatty acid β ‐oxidation encapsulated human mesenchymal (hMSCs) compared low dynamics. It further hMSCs dynamic...

In this paper, we consider the max-min fairness (MMF) transmission for an intelligent reflecting surface (IRS)- aided multi-user multiple-input single-output (MU-MISO) rate splitting multiple access (RSMA) downlink system. Our resource allocation design aims to maximize minimum among single-antenna users via optimizing transmit beamformers at transmitter and phase shift vector IRS. To end, algorithm is formulated as a mixed non-convex combinatorial optimization problem which takes into...

Developing magnetic ultrasoft robots to navigate through extraordinarily narrow and confined spaces like capillaries in vivo requires synthesizing materials with excessive deformability, responsive actuation, rapid adaptability, which are difficult achieve the current soft polymeric materials, such as elastomers hydrogels. We report a magnetically actuatable water-immiscible (MAWI) coacervate based on assembled core-shell nanoparticles function liquid robot. The degradable biocompatible...

In this work, we maximize the secrecy rate of wireless-powered untrusted amplify-and-forward relay networks by jointly designing power splitting (PS) ratio and beamforming with proposed global optimal algorithm (GOA) local (LOA). To guarantee secure communication, destination-based artificial noise is sent to degrade reception relay, it also becomes a new source energy powering forward information technique. Simulation result shows that LOA can achieve satisfactory performance compared GOA,...

In this paper, we consider max-min fairness for a downlink two-user multi-input single-output (MISO) system with imperfect channel state information available at transmitter (CSIT) taking into account the total power constraint and physical layer security. To handle worst-case uncertainty of potential eavesdropper (PE), study robust secure resource allocation algorithm which maximizes minimum achieved secrecy rate among single-antenna legitimate users. contrast to existing schemes adopted in...

This invited paper addresses energy and spectral efficiency trade-offs in macrocell radio access networks. Macrocell densification is used to increase the capacity of a network (RAN) because approach increases (EE) as measured bit/J. However, excessive absolute RAN consumption, which key concern for deployment future cellular networks, are expected achieve enhancement without an consumption. In this study, evaluation framework shed light on performance under densification, respect...

As radio access networks (RANs) are becoming more densified, their design has shifted from considering capacity and coverage only to capacity, energy efficiency (EE). Also, sleep modes an effective approach for enhancing the EE of densified RANs. This paper investigates a RAN Internet-of-Things (IoT) use case by employing 3-dimensional (3D) Homogeneous Poisson Point Process (HPPP) model IoT base station (BS) distribution, which accounts variation in BS height z as well its x, y position. The...

In this work, we maximize the secrecy rate of wireless-powered untrusted amplify-and-forward relay networks by jointly designing power splitting (PS) ratio and beamforming with proposed global optimal algorithm (GOA) local (LOA). To guarantee secure communication, destination-based artificial noise is sent to degrade reception relay, it also becomes a new source energy powering forward information technique. Simulation result shows that LOA can achieve satisfactory performance compared GOA,...

Traditionally, candidate lines for the transmission expansion planning are manually selected, which faces great challenges in terms of multi-regional and large penetration renewable energy sources (RES). In this paper, an approach is proposed to select set automatically. The utilization level RES can be ensured by created set. Through definition congestion buses, size promising greatly reduced. Moreover, make a trade-off between integrity computation time, linear relaxation applied. Two case...

The optimal robust adaptive beamforming problem based on worst-case signal-to-noise-plus-interference ratio (SINR) maximization with a nonconvex uncertainty set of the desired steering vectors is considered. consists similarity constraint and (nonconvex) double-sided ball constraint. SINR turned into quadratic matrix inequality (QMI) using strong duality semidefinite programs. Then linear (LMI) relaxation for QMI formulated, further restricted by adding an equivalent representation second...

Composite insulators promoted development of ultra-high voltage transmission lines and study the composite is a very important topic at electric engineering. For wide area variable weather China, will endure several terrible conditions. Strong wind special environment China or worldwide. Now problems caused by are mainly focusing on tower strength, conductor galloping external insulation selection. The sheds cracks 750kV AC in Xinjiang province new topic. It found that when speed higher than...

For the wide area and variable weather in China, composite insulators will endure several terrible conditions. Strong wind is very special China or other worldwide places. Now transmission lines problems caused by are mainly focusing on tower strength, conductor galloping external insulation selection. The sheds cracks of at 750kV AC Xinjiang province new as a topic. We blew tunnel showed that would vibrate high frequency when was stronger than 30 m/s which cause crack. In this paper, we...

Abstract BACKGROUND Most studies have focused on the degradation of acrylamide (AM) by a single strain. There are relatively few treatment AM anaerobic activated sludge. Previous shown that conductive particles can change mode electron transport between microorganisms. Therefore, this study compared enhancement effect three different (Fe 3 O 4 , granular carbon (GAC), graphite) synthetic wastewater sludge under temperature conditions (30, 25, 20 °C) and particle dose (2, 6 g L −1 ). RESULTS...

Radio access network (RAN) designers need to prioritize capacity and energy efficiency performance in 5G RANs accommodate the increasing user demands. The analysis of RAN performances is substantially simplified through application an accurate, low computational complexity, straightforward-to-apply pathloss model, which incorporates realistic correlated shadow fading. work presented this paper based on kriging method that generates accurate fading map, can be derived from either measured or...

The dynamic conformational changes in the secondary structures of proteins are essential to their functions and can regulate diverse cellular events. Herein we report design a synthetic polymer-based structure analogue zinc finger (ZnF) by introducing coordination motif overcome free energy barrier predicted theoretical calculations fold-free polymer chains. switching between unfolded folded state ZnF be triggered situ drastically manipulate accessibility conjugated cell adhesive ligands...

In this paper, we study the robust and fair transmission design for a rate splitting multiple access (RSMA)-based multi-user multiple-input single-output (MU-MISO) probabilistic secrecy communication system, where statistic distribution of estimation errors eavesdropping channels is available at transmitter. Our resource allocation aims to maximize minimum achievable outage constrained (OC) among single-antenna legitimated users (LUs) via optimizing beamforming vectors artificial noise (AN)...

This paper studies the time synchronization and monitoring technology of nuclear power plants, discusses demand importance for operation analyzes current status existing problems plants. In response to these problems, a plant autonomous service system architecture based on high-precision clock mechanism is proposed, further analysis demonstration will help improve stability ensure safety.

Abstract The dynamic conformational changes in the secondary structures of proteins are essential to their functions and can regulate diverse cellular events. Herein we report design a synthetic polymer‐based structure analogue zinc finger (ZnF) by introducing coordination motif overcome free energy barrier predicted theoretical calculations fold‐free polymer chains. switching between unfolded folded state ZnF be triggered situ drastically manipulate accessibility conjugated cell adhesive...

The base station (BS) densification in Internet of Things (IoT) networks provides a viable pathway for enhancing network capacity to meet the ever increasing demand data. Increasing number BSs also increases energy consumption, which compromises efficiency (EE). This is important 3 dimensional (3D) IoT deployments where volume spectral (VSE) and EE are key performance indicators (KPIs). In such networks, BS sleep modes provide an effective way constrain both interference thereby improving...