منابع مشابه
Di-lanthanide encapsulated into large fullerene C100: a DFT survey.
Quantum chemical calculations combined with statistical thermodynamic computations expose the electronic structure and high thermodynamic stability of Dy(2)@C(100), a D(5)-symmetric endohedral metallofullerene.
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http://dx.doi.org/10.1016/j.cie.2014.05.019 0360-8352/ 2014 Elsevier Ltd. All rights reserved. ⇑ Corresponding author at: Department of Industrial Engineering, Tarbiat Modares University, Tehran, Iran. Tel.: +98 913 229 3775. E-mail address: [email protected] (M. Maleki). 1 Maximal Expected Coverage Relocation Problem. 2 Emergency Medical Services. Mohammad Maleki a,b,⇑, Nahidsadat Majlesinasa...
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We present an approximate dynamic programming approach for making ambulance redeployment decisions in an emergency medical service system. The primary decision is where we should redeploy idle ambulances so as to maximize the number of calls reached within a given delay threshold. We begin by formulating this problem as a dynamic program. To deal with the high-dimensional and uncountable state ...
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Connectivity and coverage are two crucial problems for wireless sensor networks. Several studies have focused on proposing solutions for improving and adjusting the initial deployment of a wireless sensor network to meet these two criteria. In our work, we propose a new hierarchical architecture for sensor networks that facilitates the gathering of redundancy information of the topology. Severa...
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For wireless sensor networks (WSNs), uneven energy consumption is a major problem. A direct consequence of this is the energy hole problem, formation of sensing voids within the network field due to battery depleted sensors in the corresponding region. Hole formations are inherent in the network topology, yet it is possible to develop strategies to delay the hole formations to later stages of t...
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ژورنال
عنوان ژورنال: British Dental Journal
سال: 2020
ISSN: 0007-0610,1476-5373
DOI: 10.1038/s41415-020-1687-3