Wireless data transmission consumes a significant part of the overall energy consumption smartphones, due to popularity Internet applications. In this paper, we investigate characteristics over Wi-Fi, focusing on effect flow and network environment. We present deterministic models that describe Wi-Fi with traffic burstiness, performance metrics like throughput retransmission rate, parameters power saving mechanisms in use. Our are practical because their inputs easily available mobile...

Taxi is an indispensable mode in the urban public transportation. Although many studies have explored travel patterns of taxi trips, few combined and subway to reveal their intermodal relationship. To bridge gap, this study utilized taxi’s trajectory data investigate its relationship with subway. Considering multifaceted between operation, trips are categorized into three types, namely, subway-competing, subway-extending, subway-complementing trips. The characteristics each type reflect...

Background: Metabolic reprogramming is critical in cardiovascular disease (CVD) research, affecting a variety of diseases such as myocardial damage, coronary heart disease, and atherosclerosis, has also emerged therapeutic target. This study conducts bibliometric analysis the past 24 years to identify trends hotspots CVD metabolism, aiming guide future research inform policy. Methods: analyzes publications from January 1, 2000, October 10, 2024, using Web Science Core Collection database....

Narrowband Internet of Things (NB-IoT) is a novel narrowband radio technology particularly designed for low power, data rate, enhanced coverage, and long battery life. To save the discontinuous reception (DRX) mechanism standardized by third generation partnership project also adopted in NB-IoT specifications as important methods to obtain However, current DRX schemes used Long Term Evolution (LTE) are inadequate large-scale system. In this paper, aim better power saving balance weak-up...

Accessibility has drawn extensive attention from city planners and transportation researchers for decades. With the benefits of large-scale varying time, this study aims to combine taxi global positioning system (GPS) data with a cumulative opportunity measure calculate accessibility in Beijing, China. As traffic conditions vary significantly over time space, we select four typical periods introduce grid-based method divide area into grid cells. Both GPS signals opportunities that include...

To improve first/last mile travel services between metro stations and communities, this study modeled analyzed four kinds of feeder bus operation strategies in terms time accessibility. The analytical modeling was used to compare the times simulation experiments were accessibilities different strategies. results showed that when ratio length width area increases, number stops for fixed route transit with will increase. When demand is low, responsive separate routes has highest high, provides...

Abstract Biomass is an important energy source and the ash formed in thermochemical conversion processes requires analysis interpretation. Capsicum stalk ashes prepared by ashing at 400, 600 815 °C were studied X‐ray fluorescence, diffractometer, thermogravimetry fusion temperature tests. Melting slagging did not occur process; however, characteristic indices showed that there was a tendency for slagging. Meanwhile, it found deformation, softening, hemispherical fluid temperatures consistent...

The next generation mobile network is foreseen as a heterogeneous comprising not only the evolved existing systems but also new radio (NR) spanning over whole spectrum. Multi-connectivity (MC), where UE aggregates resources from multiple cells, provides an efficient way to fulfill diverse 5G requirements. In 3GPP, Dual connectivity (DC) and carrier aggregation (CA) have been specified in LTE boost capacity, similar MC operations were agreed be developed for NR. Since solutions targeting user...

A method for solving the winner determination problem (WDP) in multi-attribute procurement auctions is proposed, based on technical and business experts' evaluation information. Firstly, background of procurements China, a auction mechanism presented, where experts participate bid evaluation. Then, concept TOPSIS used to determine positive negative ideal points WDP according prices, Further, closeness coefficient each bidder (candidate supplier) obtained by calculating distances points....

In this paper we analyze the delay performance of an opportunistic multi-channel medium access control scheme and compare it to that corresponding single channel MAC scheme. scheme, assume pair sender/receiver is able evaluate quality after a certain amount sensing choose best one for data communication. We consider three settings: (1) ideal scenario where no needed incurred, (2) more realistic users compete on using random access, (3) similar but with Time Division Multiplex (TDM) based...

Self-sustained highway transportation energy system (SHTES) means an integrated that combines multi-energy planning, conversion, control and operation to achieve self-sustained supply in the context of energy-transportation nexus, which can make full use renewable natural resources along reduce operating costs. However, extreme weather disaster may damage infrastructure SHTES, seriously threatening reliable load. A resilience-oriented strategy is proposed this paper, aims at strengthening...

Abstract Over the past three decades, China, especially in megacity areas, has suffered from air pollution and heavy haze with its decades-long burst of economic growth rapidly expanding clout as an industrial giant. The important two elements pollutant China are fine particles (PM 2.5-PM 10) non-natural greenhouse gases. To overcome these problems, this study, we propose a novel inversion solar chimney approach for mitigating problems megacities by using water to scavenge through spraying...

We analyze the following group learning problem in context of opinion diffusion: Consider a network with M users, each facing N options. In discrete time setting, at step, user chooses K out options, and receive randomly generated rewards, whose statistics depend on options chosen as well itself, are unknown to users. Each aims maximize their expected total rewards over certain horizon through an online process, i.e., sequence exploration (sampling return option) exploitation (selecting...

The construction of a power system including renewable energy has become the direction development for industry as result “carbon peaking and carbon neutrality” targets. Yet because electricity market (EM), (CM), green certificate (GCM) have traditionally operated independently, with little interaction among them. To explore correlation three markets, this paper analyzes trading patterns mutual influencing factors EM, CM GCM proposes optimal decision-making model...

Abstract A large amount of system operation and equipment status data in current power systems are recorded stored text form, analysis has become an important basis for analysis. However, the research still lacks relevant experience applying it to disposal abnormal spills grids. Therefore, text-oriented mining is first introduced paper explain its basic concepts implementation processes. Then, combining grid-related spillover requirements, decision-making methods proposed. Finally,...

The rapid development of the Dedicated Short Range Communications (DSRC) has provide a good opportunity for solving increasingly outstanding traffic safety problems. One noteworthy function enabled by DSRC is end queue (EOQ) collision warning system. However, reliability system easily affected some ignorable factors like penetration rate, communication range and positioning accuracy. In this paper, an EOQ proposed on highway environment. established using only velocity-related information...

The intelligent vehicle gives more convenience to our lives and safety is the foundation for application. This paper compares of automated individual with without cooperation function, platooned vehicles considering rear end collision frequency severity on freeway. In vehicles, we also compared different driving modes by changing inter spacing number in platoon. this study, are under same freeway capacity.