Narrow search
Showing 1 - 10 of 3,683
Cover Image
Container vessel fleet deployment for liner shipping with stochastic dependencies in shipping demand
Ng, ManWo - In: Transportation Research Part B: Methodological 74 (2015) C, pp. 79-87
acknowledge and account for the significant amount of uncertainty present in shipping demand in real world container shipping. In …
Persistent link: https://www.econbiz.de/10011264633
Cover Image
Aircraft routing under different business processes
Lacasse-Guay, Eve; Desaulniers, Guy; Soumis, François - In: Journal of Air Transport Management 16 (2010) 5, pp. 258-263
Given a set of scheduled flights that must be operated by the same aircraft type, the aircraft routing problem consists of building anonymous aircraft routes that respect maintenance requirements and cover each flight exactly once. This paper looks at the nature of the problem and introduces a...
Persistent link: https://www.econbiz.de/10010755172
Cover Image
Speaking Stata: On getting functions to do the work
Cox, Nicholas J. - In: Stata Journal 2 (2002) 4, pp. 411-427
Functions in Stata take two main forms, built-in functions that are part of the executable and egen functions written in Stata's own language. These are surveyed, giving a variety of tips and tricks, and noting the large number of user-written egen functions available for download from the...
Persistent link: https://www.econbiz.de/10005583262
Cover Image
Unbinding transitions of membranes and strings from single and double-well potential
Asfaw, Mesfin - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 14, pp. 3526-3536
strings. We derive the scaling laws for strings analytically. The exact analytical results provide scaling estimate for …
Persistent link: https://www.econbiz.de/10010590246
Cover Image
On non-extensive statistics, chaos and fractal strings
Castro, C. - In: Physica A: Statistical Mechanics and its Applications 347 (2005) C, pp. 184-204
-extensive statistics (with a non-additive q-entropy) of an ensemble of fractal strings and branes of different dimensionalities. Non …-extensive entropy and probability distribution of a canonical ensemble of fractal strings and branes is studied in terms of their …-particles, knot theory, quantum groups and number theory are briefly discussed within the framework of fractal strings and branes. …
Persistent link: https://www.econbiz.de/10010590675
Cover Image
Speaking Stata: MMXI and all that: Handling Roman numerals within Stata
Cox, Nicholas - In: Stata Journal 11 (2011) 1, pp. 126-142
The problem of handling Roman numerals in Stata is used to illustrate issues arising in the handling of classification codes in character string form and their numeric equivalents. The solutions include Stata programs and Mata func- tions for conversion from numeric to string and from string to...
Persistent link: https://www.econbiz.de/10008862275
Cover Image
Analysing risk orientation in a stochastic VRP
Reimann, Marc - In: European Journal of Industrial Engineering 1 (2007) 2, pp. 111-130
In this paper, the value of correctly addressing uncertainty and risk in operational planning is studied in the context … evaluation of different risk attitudes in planning vehicle routes, (2) the value of considering the uncertainty for planning the …
Persistent link: https://www.econbiz.de/10005754444
Cover Image
Analysing risk orientation in a stochastic VRP
Reimann, Marc - In: European Journal of Industrial Engineering 1 (2007) 2, pp. 111-130
In this paper, the value of correctly addressing uncertainty and risk in operational planning is studied in the context … evaluation of different risk attitudes in planning vehicle routes, (2) the value of considering the uncertainty for planning the …
Persistent link: https://www.econbiz.de/10008563614
Cover Image
Potential for reducing GHG emissions and energy consumption from implementing the aluminum intensive vehicle fleet in China
Du, J.D.; Han, W.J.; Peng, Y.H.; Gu, C.C. - In: Energy 35 (2010) 12, pp. 4671-4678
The automobile industry in China has rapidly developed in recent years which resulted in an increase in gasoline usage and greenhouse gas (GHG) emissions. Focus on climate change has also accelerated to grow pressure on reducing vehicle weight and improving fuel efficiency. Aluminum (Al) as a...
Persistent link: https://www.econbiz.de/10010807743
Cover Image
Planning and Scheduling Transportation Vehicle Fleet in a Congested Traffic Environment
KERBACHE, Laoucine; VAN WOENSEL, Tom - HEC Paris (École des Hautes Études Commerciales) - 2004
Transportation is a main component of supply chain competitiveness since it plays a major role in the inbound, inter-facility, and outbound logistics. In this context, assigning and scheduling vehicle routing is a crucial management problem. Despite numerous publications dealing with efficient...
Persistent link: https://www.econbiz.de/10005011671