標(biāo)題: Titlebook: Optimal Spatial Interaction and the Gravity Model; Sven Erlander Book 1980 Springer-Verlag Berlin Heidelberg 1980 Gravitationsmodell (Wirt [打印本頁] 作者: HEMI 時(shí)間: 2025-3-21 18:29
書目名稱Optimal Spatial Interaction and the Gravity Model影響因子(影響力)
書目名稱Optimal Spatial Interaction and the Gravity Model影響因子(影響力)學(xué)科排名
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書目名稱Optimal Spatial Interaction and the Gravity Model網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Optimal Spatial Interaction and the Gravity Model被引頻次
書目名稱Optimal Spatial Interaction and the Gravity Model被引頻次學(xué)科排名
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書目名稱Optimal Spatial Interaction and the Gravity Model讀者反饋
書目名稱Optimal Spatial Interaction and the Gravity Model讀者反饋學(xué)科排名
作者: 混沌 時(shí)間: 2025-3-21 20:35 作者: Abominate 時(shí)間: 2025-3-22 04:19
0075-8442 oblem is formulated and shown to have the ordinarJ doubly constrained gravity model as its solution. Entropy is here used as a measure of interactivity, which i978-3-540-09729-7978-3-642-45515-5Series ISSN 0075-8442 Series E-ISSN 2196-9957 作者: Charade 時(shí)間: 2025-3-22 07:51 作者: 的闡明 時(shí)間: 2025-3-22 12:36 作者: Intruder 時(shí)間: 2025-3-22 13:11
finden, das Fundamentalproblem der Integralrechnung. .. und . gro?es Verdienst ist es, den . klar erkannt zu haben. In ihren H?nden entwickelten sich die vielfach vorhandenen Ans?tze zu neuen einheitlichen Methoden, und die Infinitesimalrechnung entstand als ein machtvolles neues Werkzeug für die W作者: vocation 時(shí)間: 2025-3-22 21:02 作者: 手術(shù)刀 時(shí)間: 2025-3-22 22:27 作者: 前奏曲 時(shí)間: 2025-3-23 02:08 作者: Pcos971 時(shí)間: 2025-3-23 06:08 作者: Consequence 時(shí)間: 2025-3-23 13:24 作者: 以煙熏消毒 時(shí)間: 2025-3-23 14:05
Sven Erlanderhnet. Da . =52, .= 52, .= 78 und .= 26 Z?hne hat, so folgt .% feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9% vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x% fr-xb9adbaqaae作者: 慎重 時(shí)間: 2025-3-23 20:45
alian bank. The proposed approaches have been applied as discussed in the previous chapters for business process re-engineering, workflow analysis and design, co-operative networks and the use of workflow management systems. The author participated in this project for business process re-engineering作者: 單調(diào)女 時(shí)間: 2025-3-23 22:31
Sven Erlanderrechnung das Ergebnis einer langen Entwicklung, die von . und . weder eingeleitet noch abgeschlossen wurde, in der aber beide eine entscheidende Rolle spielten. Im 17. Jahrhundert gab es, über ganz Europa verstreut und meist au?erhalb der offiziellen Universit?ten, eine Gruppe geistvoller Gelehrter,作者: 煩擾 時(shí)間: 2025-3-24 02:55
rechnung das Ergebnis einer langen Entwicklung, die von . und . weder eingeleitet noch abgeschlossen wurde, in der aber beide eine entscheidende Rolle spielten. Im 17. Jahrhundert gab es, über ganz Europa verstreut und meist au?erhalb der offiziellen Universit?ten, eine Gruppe geistvoller Gelehrter,作者: conservative 時(shí)間: 2025-3-24 10:34 作者: 代理人 時(shí)間: 2025-3-24 12:41
Sven Erlander erreicht werden k?nnen. Es sind daher zum Schneiden starksteigender Gewinde solche Drehb?nke zu benutzen, bei denen vorhandene Vorgeleger?der zur über-Setzung mitbenutzt werden k?nnen. In Abb. 9 (S. 6) ist der Spindelkasten einer solchen Drehbank gezeichnet. Das Zahnrad ., das die Bewegung auf die 作者: Mendacious 時(shí)間: 2025-3-24 18:25 作者: 迎合 時(shí)間: 2025-3-24 19:32
Sven Erlanderichf?rmig fortbewegten Schneidstable eine Nute eingeschnitten wird. Beim Schneiden auf der Drehbank wird der Stahl mit dem Werkzeugschlitten gleichf?rmig fortbewegt, und zwar ist die Gleichf?rmigkeit der Bewegung durch die durch Wechselr?der getriebene Leitspindel gew?hrleistet. Die Gr??e der Bewegu作者: 關(guān)節(jié)炎 時(shí)間: 2025-3-24 23:18
Sven Erlanderichf?rmig fortbewegten Schneidstable eine Nute eingeschnitten wird. Beim Schneiden auf der Drehbank wird der Stahl mit dem Werkzeugschlitten gleichf?rmig fortbewegt, und zwar ist die Gleichf?rmigkeit der Bewegung durch die durch Wechselr?der getriebene Leitspindel gew?hrleistet. Die Gr??e der Bewegu作者: Budget 時(shí)間: 2025-3-25 03:59
Sven Erlander erreicht werden k?nnen. Es sind daher zum Schneiden starksteigender Gewinde solche Drehb?nke zu benutzen, bei denen vorhandene Vorgeleger?der zur über-Setzung mitbenutzt werden k?nnen. In Abb. 9 (S. 6) ist der Spindelkasten einer solchen Drehbank gezeichnet. Das Zahnrad ., das die Bewegung auf die 作者: Mettle 時(shí)間: 2025-3-25 10:35
Entropy as a Measure of Dispersionnisawa, 1975, Horowitz-Horowitz, 1976, Erlander, 1977g,, N?slund, 1977). Its usefulness as such a measure has not been universally agreed upon (see e. g. Hart, 1971, Kendall, 1973, and Horowitz-Horowitz, 1976). In spite of this it may have some advantages in certain situations. We believe that the c作者: 金絲雀 時(shí)間: 2025-3-25 12:06
A Model for the Constraintss in this chapter. To fix ideas we shall restrict ourselves to journeys to work. Our approach lends itself easily, however, to extensions into several fields, of which we shall discuss a few in Part III.作者: BIAS 時(shí)間: 2025-3-25 17:25
The Objective Function and Our Minimization Problem that the proportion of trips from and to each area must equal the given proportions of people living and working respectively in each area. (Incidentally, the division of the studied region into living areas may be different from the division into working areas and the number of living areas may be作者: 傳授知識(shí) 時(shí)間: 2025-3-25 23:01 作者: GLEAN 時(shí)間: 2025-3-26 03:12
Entropy as a Measure of Dispersion g. Hart, 1971, Kendall, 1973, and Horowitz-Horowitz, 1976). In spite of this it may have some advantages in certain situations. We believe that the case for using entropy as a measure of dispersion in our situation is a strong one.作者: reflection 時(shí)間: 2025-3-26 06:15 作者: Eosinophils 時(shí)間: 2025-3-26 10:11 作者: 蚊帳 時(shí)間: 2025-3-26 16:35
Book 1980d throughout. Models which combine descriptive and optimizing elements are not treated. The gravity model is here studied as the solution to an optimizing model. In spite of this approach, much of the material shoula be of general interest. Algorithms are not discussed. The author has benefited from作者: 小卒 時(shí)間: 2025-3-26 18:46
The Transportation Planning ProcessThe transportation planning process can be divided into three stages: goal formulation, generation of alternatives and evaluation of alternatives. Goal formulation deals with the very important but difficult questions of formulating in as precise form as possible the objectives of various kinds which bear upon the transportation system.作者: DALLY 時(shí)間: 2025-3-26 23:39
Some Comments Upon Entropy MaximizingIt is interesting to note that the absolutely continuous distributions discussed in the previous section are the solutions to the following three problems:.(Kagan-Linnik-Radhakrishna Rao, 1973).作者: 格言 時(shí)間: 2025-3-27 05:06
The Gravity Model as the Optimal Solution of the Entropy Constrained Aggregate Linear ProgramThe entropy constrained aggregate linear program (5.2) has linear objective function and convex feasible region. Thus there is always an optimal solution, if there is any feasible point at all.作者: AGGER 時(shí)間: 2025-3-27 09:12
Sensitivity and the Dual ProgramIn Chapter 6 we briefly discussed the value of the objective function . at an optimal solution X* as a function of the entropy level .. We shall now make this more precise and also consider the dependence of the other right hand members a and b.作者: 晚間 時(shí)間: 2025-3-27 13:16
Interactivity and EntropyThe most commonly used measures of accessibility are of the Hansen type (Hansen, 1959), i. e. .“Accessibility ... is a slippery notion., one of those common terms that everyone uses until faced with the problem of defining and measuring it”, Gould (1969).作者: aesthetic 時(shí)間: 2025-3-27 15:19
Benefit Measures and the Gravity ModelIn Chapter 5 we introduced total costs . as a natural efficieney measure. Together with the entropy constraint this led into the formulation of our minimum problem (5.1) (or equivalently, (5.2)).作者: Lipoprotein 時(shí)間: 2025-3-27 20:10
Modal SplitWe have already mentioned that the minimization problem (5.1) can be extended in several directions. Here we shall discuss simple extensions to modal split formulations.作者: 白楊 時(shí)間: 2025-3-28 01:17 作者: CRAFT 時(shí)間: 2025-3-28 03:20
Entropy Constrained Aggregate Linear ProgramWe saw in the previous chapter that the original problem in utility form, problem (12.5) which is a . formulation, corresponds to a . formulation, problem (12.9), in the sense that optimal solutions to the latter are optimal also in the former.作者: 寬大 時(shí)間: 2025-3-28 07:15
Lecture Notes in Economics and Mathematical Systemshttp://image.papertrans.cn/o/image/702924.jpg作者: 額外的事 時(shí)間: 2025-3-28 11:40
https://doi.org/10.1007/978-3-642-45515-5Gravitationsmodell (Wirtsch; ); Gravity; Interaction; Optimierung; Transportproblem; algorithms; linear opt作者: 憎惡 時(shí)間: 2025-3-28 18:12 作者: 培養(yǎng) 時(shí)間: 2025-3-28 20:31 作者: Leaven 時(shí)間: 2025-3-29 01:56
A Model for the Constraintss in this chapter. To fix ideas we shall restrict ourselves to journeys to work. Our approach lends itself easily, however, to extensions into several fields, of which we shall discuss a few in Part III.作者: 貴族 時(shí)間: 2025-3-29 04:19
The Future of the Italian Family: Evidence from a Household Projection Model in the number of households by one million in 20?years, and a decrease in their mean size, which would drop from 2.3 members per household to 2.1. Furthermore, we expect a decrease of couples with children, an increase of those without children and of people living alone.作者: Serenity 時(shí)間: 2025-3-29 07:29 作者: DENT 時(shí)間: 2025-3-29 13:06 作者: 憤憤不平 時(shí)間: 2025-3-29 18:53 作者: 蒼白 時(shí)間: 2025-3-29 22:39
Ming Lei,Xingjun Zhang,Bocheng Yuusreciprocity, and associated algebras of invariant differential operators..The main reasoning in the proof of the assertions made here is induction, and for this there are not many tools available. Thus a deta978-4-431-56390-7978-4-431-55288-8Series ISSN 1439-7382 Series E-ISSN 2196-9922 作者: Legend 時(shí)間: 2025-3-30 01:45
s . angesiedelt ist. W?hrend ihr situationistischer Dissident in den vergangenen Jahren durch eine Reihe von Publikationen und Ausstellungen relativ gut aufgearbeitet wurde, geriet die lettristische Filmpraxis bislang kaum ins Blickfeld der Theorie. Dafür gibt es eine Reihe praktischer Gründe. Isido作者: Atheroma 時(shí)間: 2025-3-30 06:51 作者: Ascribe 時(shí)間: 2025-3-30 11:12
Textbook 20112nd editionting with an overview of key physical experiments illustrating the origin of the physical foundations, the book proceeds?with a description of the basic notions of quantum mechanics and their mathematical content..It then makes its way to topics of current interest, specifically those in which mathe
