An optimal foraging and migration model for juvenile plaice

1994 ◽  
Vol 8 (2) ◽  
pp. 125-149 ◽  
Author(s):  
M. T. Burrows
Keyword(s):  
Optimal Foraging ◽  
Migration Model ◽  
And Migration

scholarly journals The application of137Cs and210Pbexmethods in soil erosion research of Titel loess plateau, Vojvodina, Northern Serbia

2020 ◽  
Vol 12 (1) ◽  
pp. 11-24
Author(s):  
Kristina S. Kalkan ◽  
Sofija Forkapić ◽  
Slobodan B. Marković ◽  
Kristina Bikit ◽  
Milivoj B. Gavrilov ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Loess Plateau ◽  
Alternative Methods ◽  
Delivery Ratio ◽  
Undisturbed Soil ◽  
Migration Model ◽  
Erosion Rates ◽  
Soil Erosion Rates ◽  
Profile Distribution ◽  
And Migration

AbstractSoil erosion is one of the largest global problems of environmental protection and sustainable development, causing serious land degradation and environmental deterioration. The need for fast and accurate soil rate assessment of erosion and deposition favors the application of alternative methods based on the radionuclide measurement technique contrary to long-term conventional methods. In this paper, we used gamma spectrometry measurements of 137Cs and unsupported 210Pbex in order to quantify the erosion on the Titel Loess Plateau near the Tisa (Tisza) River in the Vojvodina province of Serbia. Along the slope of the study area and in the immediate vicinity eight representative soil depth profiles were taken and the radioactivity content in 1 cm thick soil layers was analyzed. Soil erosion rates were estimated according to the profile distribution model and the diffusion and migration model for undisturbed soil. The net soil erosion rates, estimated by 137Cs method range from −2.3 t ha−1 yr−1 to −2.7 t ha−1 yr−1, related to the used conversion model which is comparable to published results of similar studies of soil erosion in the region. Vertical distribution of natural radionuclides in soil profiles was also discussed and compared with the profile distribution of unsupported 210Pbex measurements. The use of diffusion and migration model to convert the results of 210Pbex activities to soil redistribution rates indicates a slightly higher net erosion of −3.7 t ha−1 yr−1 with 98% of the sediment delivery ratio.

The research progress of water-salt mechanism and migration model

2015 ◽  
pp. 369-372
Author(s):  
Guang-li Zhu ◽  
Long Zhu ◽  
Chao Yu
Keyword(s):  
Research Progress ◽  
Migration Model ◽  
Water Salt ◽  
And Migration

scholarly journals Intercity Migration and Migration Model

1969 ◽  
Vol 20 (2) ◽  
pp. 2-20,140
Author(s):  
Fumio Toishi
Keyword(s):  
Migration Model ◽  
And Migration

Some generalizations of Bailey's birth death and migration model

1970 ◽  
Vol 2 (01) ◽  
pp. 83-109 ◽  
Author(s):  
A. W. Davis
Keyword(s):  
Diffusion Process ◽  
Hypergeometric Functions ◽  
Spatial Location ◽  
Death Process ◽  
Birth And Death Process ◽  
Limiting Distributions ◽  
Migration Model ◽  
Branching Diffusion ◽  
And Migration ◽  
Natural Measures

Some results for a general Markov branching-diffusion process are presented, and applied to a model recently considered by Bailey. Moments of the limiting distributions of certain natural measures of the spatial location and dispersion of the population are shown to be expressible in terms of the LauricellaFD-type hypergeometric functions, when the population multiplies according to the simple birth and death process with λ > μ.

scholarly journals Effects of Anti-Angiogenesis on Glioblastoma Growth and Migration: Model to Clinical Predictions

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e115018 ◽  
Author(s):  
Elizabeth Scribner ◽  
Olivier Saut ◽  
Paula Province ◽  
Asim Bag ◽  
Thierry Colin ◽  
...  
Keyword(s):  
Migration Model ◽  
And Migration

APPLICATION OF A PREDICTIVE CHANNEL SHOALING AND MIGRATION MODEL, M3D, TO ST MARYS ENTRANCE, FLORIDA

2005 ◽  
Author(s):  
CHRISTOPHER W. REED ◽  
HIMANGSHU DAS ◽  
ALAN W. NIEDORODA
Keyword(s):  
Migration Model ◽  
And Migration

Spatial Energy Transfer and Migration Model for Upconversion Dynamics in Core–Shell Nanostructures

2019 ◽  
Vol 123 (14) ◽  
pp. 9506-9515 ◽  
Author(s):  
Jiangfan Liu ◽  
Tairan Fu ◽  
Congling Shi
Keyword(s):  
Energy Transfer ◽  
Core Shell ◽  
Migration Model ◽  
Shell Nanostructures ◽  
And Migration

A Kineticaliy Controlled Fluid Pressure and Migration Model: ABSTRACT

AAPG Bulletin ◽  
1996 ◽  
Vol 80 ◽  
Author(s):  
Per Arne Bjorkum, Paul H. Nadeau
Keyword(s):  
Fluid Pressure ◽  
Migration Model ◽  
And Migration

Some generalizations of Bailey's birth death and migration model

1970 ◽  
Vol 2 (1) ◽  
pp. 83-109 ◽  
Author(s):  
A. W. Davis
Keyword(s):  
Diffusion Process ◽  
Hypergeometric Functions ◽  
Spatial Location ◽  
Death Process ◽  
Birth And Death Process ◽  
Limiting Distributions ◽  
Migration Model ◽  
Branching Diffusion ◽  
And Migration ◽  
Natural Measures

Some results for a general Markov branching-diffusion process are presented, and applied to a model recently considered by Bailey. Moments of the limiting distributions of certain natural measures of the spatial location and dispersion of the population are shown to be expressible in terms of the Lauricella FD-type hypergeometric functions, when the population multiplies according to the simple birth and death process with λ > μ.

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