نتایج جستجو برای: coated clast flows as transportation mechanisms

تعداد نتایج: 5986137  

2009
C. Pieters S. Kumar J. W. Head J. N. Goswami K. Kumar J. Boardman M. Staid N. Petro P. Isaacson

Introduction: Many impact basins on the Moon are filled with extensive mare basalts [1]. This obscures a) the primary structure of fresh basin interiors, including the nature and distribution of impact melts, and b) the nature of the early stages of the filling of basins with mare basalts. In contrast, the interior of the Orientale basin, the youngest and most well-preserved large basin on the ...

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

2006
Jean-Paul Rodrigue

What is behind the process of globalization? This is certainly a dimension that has been discussed in length and from many different perspectives. Among the most common factors identified are those related to the exploitation of comparative advantages, mainly in terms of labor, information and telecommunication technologies, foreign direct investments and technology transfers. All these have he...

2009
Hyejin Youn Michael T. Gastner Hawoong Jeong

We study the problem of optimizing traffic in decentralized transportation networks, where the cost of a link depends on its congestion. If users of a transportation network are permitted to choose their own routes, they generally try to minimize their personal travel time. In the absence of centralized coordination, such a behavior can be inefficient for society and even for each individual us...

2015
Miyuan Zhao Joseph Y.J. Chow Stephen G. Ritchie

In the aggregate freight demand modeling literature, temporal assignment (annual to daily flows) is often oversimplified or neglected altogether. Unlike passenger flows, freight flows over the course of a year are not uniform and can vary significantly as the result of trade-offs between inventory and transportation cost management. We introduce the first temporal assignment model that explicit...

2016
Jeffrey Taylor

Sophisticated computer modeling of the formation of lunar multi-ringed basins by impact indicate that substantial volumes of impact melt are produced, leading to melt bodies hundreds of kilometers in diameter and tens of kilometers deep. The impressively large bodies of magma created by the impact of a projectile 50 to 300 kilometers across might have differentiated, producing a zoned body with...

2013
Terry L. Friesz Changhyun Kwon

The rapid development of intelligent transportation system technologies and the policy emphasis on their deployment have increased the importance of predictive dynamic network flow models, especially so-called dynamic network loading and dynamic traffic assignment models. In this chapter we provide a critical review of analytic models used in predicting time-varying urban network flows. Specifi...

Journal: :Natural Hazards 2021

Abstract We identify 14 mechanisms, marine and non-marine, one man made, that result could in the formation of boulder deposits after reviewing issues associated with clast shape, size classification. Four these mechanisms: storm deposits; waterspouts; cliff collapse; catastrophic flooding below sea level, may produce stretching for significant distances along shorelines which be confused histo...

M. H. Ahmadzadegan Mojtaba Arabi Payam Porkar Rezaeie

Nowadays, one of the problems of human life is popula- tion congestion and the lack of ability to meet their needs. One of the important infrastructures affected by this issue is the transportation infrastructure. Moreover, increasing transportation facilities through conventional methods, due to the need for macro investment and much time, cannot be nowadays considered as a proper and practi- ...

2009
Philip Chang Eliot Quataert

In low-collisionality plasmas, anisotropic heat conduction due to a magnetic field leads to buoyancy instabilities for any nonzero temperature gradient. We study analogous instabilities in degenerate collisional plasmas, i.e., when the electron collision frequency is large compared to the electron cyclotron frequency. Although heat conduction is nearly isotropic in this limit, the small residua...

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