Abstract Background Jujube ( Ziziphus jujuba Mill.) fruit is one of the largest productions in China and its increasing production has drawn considerable attention from researchers. Polysaccharide most abundant components jujube, it represents a major group biolotegically active constituents. This study intended to investigate special structure homogeneous acidic polysaccharide (PZMP4) produced Jujuba cv. Muzao using novel methods, including DEAE-Sepharose Fast Flow Sephacryl S-300 column...

This manuscript presents an Adam optimization-based Deep Reinforcement Learning model for Mixed Traffic Flow control (ADRL-MTF), so as to guide Connected and Autonomous vehicle's (CAV) longitudinal trajectory on a typical urban roadway with signal-controlled intersections. Two improvements are made when compared prior literatures. First, the common assumptions simplify problem solving, such dividing vehicle into several segments constant acceleration/deceleration, avoided, improve modeling...

Surrogate safety measures are widely used in advanced driver assistance systems (ADASs) to detect traffic conflict and evaluate risk levels car-following scenarios. However, the integration of driving style into surrogate has not been thoroughly investigated. To enhance reliability user satisfaction ADASs, this study introduces a measure, deceleration (RD), describe drivers’ perception decision-making process process. The parameters RD calibrated using genetic algorithm better reflect...

Extrusion is a method of processing that changes the physicochemical and rheological properties starch protein under specific temperature pressure conditions. In this study, twin-screw extrusion technology was employed to prepare yam starch-soy isolate complexes. The structure complexes their effects on quality dough were studied. results showed in X-ray diffraction, rheology, vitro digestibility extruded starch-protein complex formed an A+V-type crystal with addition soy isolate. A small...

We introduce an imbalanced data classification approach based on logistic regression significant discriminant and Fisher discriminant. First of all, a key indicators extraction model correlation analysis is derived to extract features for customer classification. Secondly, the basis linear weighted utilizing discriminant, scoring established. And then, rating where number all ratings follows normal distribution constructed. The performance proposed classical SVM method are evaluated in terms...

The study investigated the effects of plasma-activated water (PAW) and heat moisture treatment (HMT) on rheological properties wheat flour

AbstractThis study proposes a generic metro timetable rescheduling method for the minimization of capacity loss that integrates spatial and temporal information on random line disruptions time-varying characteristics passenger flows. The proposed emergency operating rules can be immediately deployed after disruption using one crossover track. spatiotemporal current state are integrated into management (MDM) model, which considers deviated from original schedule number stranded passengers as...

Mobile and slow-moving operations, such as striping, sweeping, bridge flushing, pothole patching, are critical for efficient safe operation of a highway transportation system. However, reducing hazards roadway workers achieving safer environment both maintenance operators the public is challenging problem. In 2017 alone, total 158,000 vehicle crashes occurred in work zones U.S.A., accounting 61,000 injuries. The autonomous truck-mounted attenuator (ATMA) vehicle, sometimes referred to an...

The longitudinal trajectory planning of connected and autonomous vehicle (CAV) has been widely studied in the literature to reduce travel time or fuel consumptions. safety impact CAV mixed traffic flow with both human-driven (HDV), however, is not well understood yet. This study presents a reinforcement learning modeling approach, named Monte Carlo tree search-based algorithm, MCTS-AVS, optimize flow, on one-lane roadway signalized intersection control. Crash potential index (CPI) defined...

A model-free approach is presented, based on the Monte Carlo tree search (MCTS) algorithm, for control of mixed traffic flow human-driven vehicles (HDV) and connected autonomous (CAV), named MCTS-MTF, a one-lane roadway with signalized intersection control. Previous research has often simplified problem certain assumptions to reduce computational burden, such as dividing vehicle trajectory into several segments constant speed or linear acceleration/deceleration, which was rather unrealistic....

The body of tremella were decocted with water, and hydrolyzed 0.1 mol/L hydrochloric acid for different times, giving polysaccharides six molecular mass values. structures all the had non-reducing terminals β-D-pyranglucuronide, backbone was composed (1→3)-linked β-D-manno-pyranoside, side chain (1→6)-linked β-D-xylopyranoside attached to C2 mannopyranoside. Immunomodulatory effect studies indicated that increased counts leukocytes in peripheral blood which significantly lowered by...

The freeze-thaw durability of recycled aggregate concrete has significance for the buildings in cold region. In this paper, rapid freezing and thawing cycles experience on recycle was conducted to study effects amount, water-binder ratio fly ash concrete. results indicates that amount makes significant influence durability. With increase aggregates resistance decreases. Recycled with lower water cement demonstrates better performance It is advised less than 30% admixture

Station-catchment-area delineation is a key component of direct ridership models for urban rail-transport systems as it can determine the relationship between urban-rail-transit station-level and variables within station catchment area. The neglect differences in passenger-flow distribution different travel purposes previous studies has led to low accuracy obtained walk-to-station distances. Therefore, this paper proposes station-catchment-area method which based on web map data obtain...

Objectives Transformation of normal mucosa to colorectal adenoma could occur over a span 5 20 years, whereas transformation cancer take an additional 15 years. This study aims investigate whether chicken skin (CSM) surrounding adult adenomas may be risk factor for carcinogenesis. Methods Patients with mucosa, without CSM, or CSM were enrolled in this study. Immunohistochemistry and enzyme-linked immunosorbent assays used determine the expression levels proliferation markers (ki-67 COX-2)...

Analyzing the spatial-temporal distribution of travel carbon emissions will help government departments to develop effective policies and strategies for emission management. This research proposes a trajectory-based analysis method identify sources high relationship between car use emissions. The vehicle-specific power model (VSP), which considers effect vehicle operating speed on emissions, was used estimate from origin destination. area divided into grids according population distribution,...

The assessment of the resilience Urban Rail Transit Networks (URTNs) and analysis their evolutionary characteristics during network growth can help in design efficient, safe, sustainable networks. However, there have been few studies regarding change long-term development. As for existing studies, they rarely consider entire cycle accident occurrence repair; furthermore, ignore changes transportation performance emergencies. Moreover, measurement metrics important nodes not comprehensively...

Existing techniques for estimation of subway station-level long-term peak-hour ridership (PHR) may produce underestimated PHR values that result in stations being designed with insufficient capacity during the planning stage; this turn increase congestion on platforms actual operation. One reasons potential undesirable outcome is peak deviation phenomena often arise between and lines systems, which could create values. The default assumption has always been hour passenger flow each station...

With the development of urban rail transit network (URTN), structure and performance have changed, node importance has also been redistributed. However, little research done on how hub nodes change as develops over a lengthy period. Moreover, most identification methods only focus analysis topological networks or single-dimension measurements, resulting in inaccurate results. To overcome above limitations, novel method is proposed. Based ridership-weighted model, centrality reliability are...

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Prediction of the extra-peak hourly ridership (EPHR) is directly related to capacity design subway station service facilities. In traditional station-level EPHR prediction process, predicted value simply result multiplication peak (PHR) by a unified hour factor (EPHF). However, this method may be underestimated because PHR results are extracted from line-level value, rather than value. Moreover, while existing EPHF always determined China's Code for Design Metro, it too simple and unrefined...

During the last train period, passengers will not successfully reach their destination if timetables of various transfer station lines are coordinated. This paper proposes a general model to optimize urban rail networks and maximize origin-destination (OD) accessibility for metro during period. By using generalized cost function, all transportation activities involved in an network effectively described, function is established as criterion its accessibility. A mixed-integer programming that...