Abstract Background The increased number of older adults living alone has created a substantial care need. However, the utilization rate services and facilities to meet these needs are surprisingly low. Many experience difficulties accessing services, although it remains unclear how obstacles impede access services. This study explored experienced by urban in seeking community care. Methods A phenomenological was carried out participatory observation in-depth interviews were employed...

Abstract Background Against the background of an aging population, older adults living alone in cities are increasingly dependent. However, their use home and community-based services China is unsatisfactory. This study attempted to figure out why do not actively seek assistance China. Methods In-depth interviews were conducted. A total 29 recruited. Content analysis was used analyze interview data. Results Three themes identified. (1) Desire for independence, despite hardship: The lives...

Abstract Reaping the benefits of burgeoning investigation gels in recent decades, flexible electronics based on conductive have been extensively explored. Gels consisting polymer networks and solvents provide ideal platforms for fabricating due to their soft mechanical nature, excellent biocompatibility, water‐like environment, ease processing. The majority investigations primarily focus functionalities such as sensing capability, energy density, luminance, fluctuating frequency, so on,...

The application of industrial wireless sensor networks (IWSNs) frequently appears in modern industry, and it is usually to deploy a large quantity nodes the monitoring area. This way deployment improves robustness IWSNs but introduces many redundant nodes, thereby increasing unnecessary overhead. purpose this paper increase lifetime without changing physical facilities ensuring coverage sensors as much possible. Therefore, we propose quantum clone grey wolf optimization (QCGWO) algorithm,...

In this paper, a joint relay selection and resource allocation scheme is proposed for simultaneous wireless information power transfer (SWIPT) networks with multiple Source nodes (SNs) Destination (DNs) pairs energy harvesting Relay (RNs). The transmit power, subchannel, splitting ratio SNs/RNs the strategy are jointly optimized to maximize total efficiency of all SNs RNs. optimization problem transformed equivalently into two subproblems, i.e., subproblem one SN-RN-DN path optimal...

Routing requests in industrial wireless sensor networks (IWSNs) are always restricted by QoS. Therefore, finding a high‐quality routing path is key problem. In this paper, clone adaptive whale optimization algorithm (CAWOA) designed for reducing the energy consumption of IWSNs with QoS constraints, and novel operator proposed. More importantly, CAWOA innovatively adopts discrete binary‐based coding method, which provides strong support optimal schemes. addition, model combined constraints...

In the current complex cyber environment, malicious attacks take various forms and constantly change. To overcome problems of low detection efficiency high false alarm rate in traditional intrusion techniques, a new method network combining variable scale chaos bat (MSCB) algorithm BP neural (BPNN) called MSCB-BPNN is proposed this paper. approach, MSCB to improve BPNN by optimizing its thresholds weights so as prevent it from falling into local optimum. verify practical classification...

Research on intelligent transportation wireless sensor networks (ITWSNs) plays a very important role in an system. ITWSNs deploy high‐yield and low‐energy‐consumption traffic remote sensing nodes with complex parameter coordination both sides of the road use self‐organizing capabilities each node to automatically establish entire network. In large‐scale self‐organization process, importance tasks undertaken by is different. It not difficult prove that task allocation sensors NP‐hard problem,...

Cognitive radio networks (CRNs) are expected to improve spectrum utilization significantly by allowing secondary users (SUs) opportunistically access the licensed of primary (PUs). In an integrated network consisting multiple heterogeneous CRNs, SUs with interfaces may have conduct inter-system or intra-system handoff due arrival PUs performance degradation on serving spectrum. this case, designing optimal scheme which offers quality service (QoS) guarantee and enhancement is particular...

The industry wireless sensor network (IWSN) technology, which is used to monitor industrial equipment, has attracted more and attention in recent years. Sensor nodes IWSN can spontaneously complete distributed networking carry out monitoring tasks under random deployment conditions. Therefore, a self‐organized particularly suitable for the fault detection diagnosis of equipment complex environments. However, due detection, ability single node limited, distribution problem typical...

Abstract Cognitive wireless medical sensor network (CWMSN) is a new development direction of the (WSN) in recent years. The requirements CWMSN are multi-faceted such as optimized utilization resources, energy efficiency and channel sharing. However, also faces problem limited spectrum. For this reason, paper proposes spectrum allocation model. Moreover, binary quantum-behaved elite particle swarm optimization algorithm (BQEPSO) based on combination quantum operator, operator (BPSO) proposed...

In this paper, a collaborative optimization for floorplaning and pin assignment of 3D ICs using genetic simulated annealing(GA-SA) algorithm is presented. Layout problem usually solved by multi-objective function developed from stochastic algorithm. The weight value has great impact on the final layout results. A hybrid combined Genetic Simulated Annealing(GA-SA) to find values in co-optimization. By method, area, interconnection length, maximum temperature floorplanning, partial return-path...

Cognitive radio networks (CRNs) are expected to improve spectrum utilization significantly by allowing secondary users (SUs) opportunistically access the licensed of primary (PUs). In a CRN scenario consisting multiple heterogeneously integrated CRNs, SUs with interfaces may have conduct handoff target subchannels. Jointly considering interruption delay and transmission performance on subchannels, subchannel selection resource allocation optimization problem which maximizes energy efficiency...

Industrial wireless sensor networks (IWSNs) are usually fixedly deployed in industrial environments, and various nodes cooperate with each other to complete production tasks. The efficient work of node IWSNs will improve the efficiency entire network. Automated robots need perform timely inspection maintenance an environment. Excessive distance increase costs energy consumption. Therefore, shortening can reduce consumption, which is very important for operation system. However, optimal...

Cognitive radio networks (CRNs) are expected to improve spectrum utilization significantly by allowing secondary users (SUs) opportunistically access licensed without affecting the normal communications of primary (PUs). In a CRN scenario consisting multiple heterogeneously integrated CRNs, SUs with interfaces may have conduct network and selection for continuous data transmission. this paper, scheme is proposed which minimizes total transmission delay interrupted in heterogeneous under...

As a local college engineering professional, how to grow according the needs of students construct appropriate educational environment, implementation innovation education reform experiments, training meet social high-level application-oriented talents, is major opportunities and challenges we face. Accorded personnel orientation, target application electronic innovations senior technical system for professional practice, explore model ability quality transport solid foundation society...