Understanding the Fundamentals of Empty-Car Routing in Ridesharing Systems

The c-ret proto-oncogene encodes a receptor tyrosine kinase which plays an important role in neural crest as well kidney development. Genetic studies have demonstrated that germ line mutations the ret oncogene are direct cause of multiple endocrine neoplasia (MEN) 2A and 2B, familial medullary thyroid carcinoma (FMTC), Hirschsprung's disease. However, despite large body genetic biological evidence suggesting importance RET development neoplastic processes, signal transduction mechanisms...

Fermented-chopped pepper is a widely consumed condiment in China due to its attractive flavor. Chopped seed (CPS) the byproduct generated during production of chopped and generally discarded as waste. In this study, volatile organic compounds (VOCs) nutritional value three varieties CPS were investigated. Results indicated that compositions exhibited significant differences. All samples contained 17 amino acids rich fatty acids, with unsaturated being predominant accounting for 79 % total...

Abstract We study a class of load-balancing algorithms for many-server systems ( N servers). Each server has buffer size $b-1$ with $b=O(\sqrt{\log N})$ , i.e. can have at most one job in service and jobs queued. focus on the steady-state performance heavy traffic regime such that load system is $\lambda = 1 - \gamma N^{-\alpha}$ $0<\alpha<0.5$ $\gamma > 0,$ which we call sub-Halfin–Whitt $\alpha=0.5$ so-called Halfin–Whitt regime). establish sufficient condition under probability...

With the growing popularity of electric vehicles (EVs), maintaining power grid stability has become a significant challenge. To address this issue, EV charging control strategies have been developed to manage switch between vehicle-to-grid (V2G) and grid-to-vehicle (G2V) modes for EVs. In context, multiagent deep reinforcement learning (MADRL) proven its effectiveness in control. However, existing MADRL-based approaches fail consider natural flow charging/discharging distribution network...

The aim of this work is to elucidate the effects reduced salt content on microbial ecology and flavor profile dry‐cured ham. To develop low‐salt (LS) treatment group, a curing mixture consisting 18% potassium lactate, 12% lysine, 70% sodium chloride was utilized instead traditional salts. On other hand, standard protocol for control group (CK) involved use 100% chloride. results demonstrate that ham in LS had noteworthy 9.01% increase protein when compared CK group. Through SPME‐GC‐MS...

Abstract This paper studies load balancing for many‐server ( N servers) systems. Each server has a buffer of size b − 1, and can have at most one job in service 1 jobs the buffer. The time follows Coxian‐2 distribution. We focus on steady‐state performance policies heavy traffic regime such that normalized system is λ = α 0 < 0.5. identify set achieve asymptotic zero waiting. include several classical as join‐the‐shortest‐queue (JSQ), join‐the‐idle‐queue (JIQ), idle‐one‐first (I1F)...

The desorption isotherms of potato, carrot, tomato and green pepper were determined at 30, 40, 50 60°C within the range 10–90% water activity. Iglesias Chirife, Halsey GAB equations tested to fit experimental data. net isosteric heat was from equilibrium

Pregnancy is a complicated and special process with many bodily changes, discomforts, possibilities of complications. Partners expectant mothers share close relationship often play an important role during pregnancy. To support better pregnancy experience, we present Nuwa, system that enhances self-awareness health condition also facilitates the communication between their partners. The based on mothers' conditions. It provides way for parents to track understand maternal health, encourages...

This paper studies the steady-state performance of load balancing algorithms in many-server systems. We consider a system with N identical servers buffer size b-1 such that b = o (√N), other words, each server can hold at most jobs, one job service and - 1 jobs buffer.

Power-of-d-choices is a popular load balancing algorithm for many-server systems such as large-scale data centers. For each incoming job, the probes d servers, chosen uniformly at random from total of N and routes job to least loaded one. It well known that power-of-d-choices reduces queueing delays by orders magnitude compared policy randomly selected server. The question be addressed in this paper how large needs so achieves asymptotic zero delay like join-the-shortest-queue (JSQ)...

This paper considers the steady-state performance of load balancing algorithms in a many-server system with distributed queues. The has $N$ servers, and each server maintains local queue buffer size $b-1,$ i.e. can hold at most one job service $b-1$ jobs queue. Jobs same are served according to first-in-first-out (FIFO) order. is operated heavy-traffic regime such that workload per $\lambda = 1 - N^{-\alpha}$ for $0.5\leq \alpha<1.$ We identify set queues have following universal scaling,...

Existing approaches for vehicle repositioning on large-scale ride-hailing platforms either ignore the spatial-temporal mismatch between supply and demand in real-time or overlook long-term balance of system. To account both, we propose a lookahead policy this paper, which is novel approach to idle vehicles from both dynamic system performance perspective. Our method consists two parts; first part utilizes linear programming (LP) formulate nonstationary as time-varying, <inline-formula...

This paper studies the sensitivity (or insensitivity) of a class load balancing algorithms that achieve asymptotic zero-waiting in sub-Halfin-Whitt regime, named LB-zero. Most existing results on assume service time distribution is exponential. establishes large-system insensitivity LB-zero for jobs whose follows Coxian with finite number phases. result justifies achieves large distributions as family dense positive-valued distributions. To prove this result, develops new technique, called...

Early diagnosis of mild cognitive impairment (MCI) may effectively prevent its development to Alzheimer's disease. Function connectivity (FC) the brain networks is a widely used biomarker for MCI detection. However, FC estimated by pre-defined metrics unable fully characterize signals. The present study aims develop deep learning framework directly applied signals improved diagnosis. A resting-state functional magnetic resonance imaging (rs-fMRI) dataset containing normal controls (NC),...

This paper presents a model-free reinforcement learning (RL) algorithm for infinite-horizon average-reward Constrained Markov Decision Processes (CMDPs). Considering horizon K, which is sufficiently large, the proposed achieves sublinear regret and zero constraint violation. The bounds depend on number of states S, actions A, two constants are independent K.

Vanadium oxide (VO2) is a narrow band gap material (Eg = 0.7 eV) with thermally induced insulator-metal phase transition at ∼343 K and evidence of an electric field T &amp;lt; 343 K. To explore the electronic properties VO2, sandwich structure was prepared 2 nm VO2 layer embedded between oxidized Si(100) surface hafnium (HfO2) layer. The confirmed high resolution transmission electron microscopy. were characterized x-ray ultraviolet photoemission spectroscopy, alignment deduced on both...