Results 21 to 30 of about 647,060 (199)

A Multi-objective Optimization Model for Robust Skip-Stop Scheduling with Earliness and Tardiness Penalties

open access: yesUrban Rail Transit, 2019
Inefficient transport systems impose extra travel time for travelers, cause dissatisfaction and reduce service levels. In this study, the demand-oriented train scheduling problem is addressed using a robust skip-stop method under uncertain arrival rates ...
Farzaneh Rajabighamchi   +2 more
doaj   +1 more source

A linguistic variable of product-related question answering review system

open access: yesSystems and Soft Computing, 2023
E-commerce platforms like Amazon, Jumia, Airbnb, Alibaba, eBay and JD.com amongst others play a huge role in linking sellers of products to interested buyers.
Akinwale Adio, Akinleye Simeon
doaj   +1 more source

Evaluation of Knowledge Management System Performance in the Software Development Industry Using Meta Synthesis Method [PDF]

open access: yesبازیابی دانش و نظام‌های معنایی, 2023
IntroductionNew software development models are emerging that help in software development by default. Secure software should be defined based on the fundamental framework of the organization and the fundamental framework of the organization's software ...
Mostafa Pahlevanzadeh   +3 more
doaj   +1 more source

Mapping the QCD Phase Transition with Accreting Compact Stars [PDF]

open access: yes, 2008
We discuss an idea for how accreting millisecond pulsars could contribute to the understanding of the QCD phase transition in the high-density nuclear matter equation of state (EoS). It is based on two ingredients, the first one being a ``phase diagram''
Alessandro Patruno   +10 more
core   +2 more sources

Development and characterization of patient-derived xenograft models of colorectal cancer for testing new pharmacological substances

open access: yesБюллетень сибирской медицины, 2023
The aim of the study was to create a patient-derived xenograft (PDX) model of human colorectal cancer and to determine its histologic and molecular characteristics, such as the status of KRAS, NRAS, and BRAF genes and the presence of microsatellite ...
A. S. Goncharova   +11 more
doaj   +1 more source

Study on Accessibility of Feeder Lines with Different Geometric Shapes

open access: yesJournal of Advanced Transportation, 2020
The performance of the urban rail transit system depends largely on the operation efficiency of its feeder system. An improved way is proposed in this paper to calculate the accessibility index which is used for evaluation of feeder lines, and both ...
Qing Tang, Peng Du
doaj   +1 more source

Impact of COVID-19 pandemic related stressors on patients with anxiety disorders: A cross-sectional study.

open access: yesPLoS ONE, 2022
The COVID-19 pandemic and related containment measures are affecting mental health, especially among patients with pre-existing mental disorders. The aim of this study was to investigate the effect of the first wave and its aftermath of the pandemic in ...
Till Langhammer   +4 more
doaj   +1 more source

Modifying continuous-time random walks to model finite-size particle diffusion in granular porous media [PDF]

open access: yes, 2016
The continuous-time random walk (CTRW) model is useful for alleviating the computational burden of simulating diffusion in actual media. In principle, isotropic CTRW only requires knowledge of the step-size, $P_l$, and waiting-time, $P_t$, distributions ...
Amitai, Shahar, Blumenfeld, Raphael
core   +2 more sources

ANALISIS SISTEM ANTRIAN DAN OPTIMALISASI LAYANAN TELLER (Studi Kasus pada Bank X di Kota Semarang)

open access: yesJurnal Studi Manajemen Organisasi, 2014
In terms of providing services to customers in the bank, the phenomenon of Queuing is inevitable and often encountered. Where is clearly visible that the number of customers waiting to be served. the length of the queue make customers feel uncomfortable,
Petrus Lajor Ginting, Edy Rahardja
doaj   +1 more source

Design and evaluation of a new intersection model to minimize congestions using VISSIM software

open access: yesOpen Engineering, 2020
Traffic modelling and simulation is one of the frequent tools used in road infrastructure design. Software tools designed for traffic simulations are an important supportive tool in decision-making and in choosing the optimal solution.
Fabianova Jana   +3 more
doaj   +1 more source

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