نتایج جستجو برای: multimodal transport
تعداد نتایج: 304842 فیلتر نتایج به سال:
The design of a multimodal logistics service network with customer service time windows and environmental costs is an important and challenging issue. Accordingly, this work established a model to minimize the total cost of multimodal logistics service network design with time windows and environmental concerns. The proposed model incorporates CO2 emission costs to determine the optimal transpo...
in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...
backround: we aimed to evaluate analgesic efficacy, opioid-sparing, and opioid-related adverse effects of intravenous paracetamol and intravenous dexketoprofen trometamol in combination with iv morphine after total abdominal hysterectomy. materials and methods: sixty american society of anesthesiologist physical status classification i-ii patients scheduled for total abdominal hysterectomy were...
Due to the development of globalization, transnational activities are more frequent and evaluations current accessibility basis for improvements. Accessibility evaluation indices generally contain two parts: travel time probability. However, complex processes involve multimodal transport system, including air land networks, which makes calculation these difficult because large quantities fundam...
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