Results 41 to 50 of about 19,698,908 (154)
Remote Sensing, 2021 Natural resource managers need accurate depictions of existing resources to make informed decisions. The classical approach to describing resources for a given area in a quantitative manner uses probabilistic sampling and design-based inference to ...
John Hogland, David L. R. Affleck
doaj +1 more source
Migration as a means of population control [PDF]
, 1970 For more about the East-West Center, see http://www.eastwestcenter.org/That it makes a difference to ultimate population whether out-migrants are of fertile ages or not is well known.
Keyfitz, Nathan +1 more
core +1 more source
An econometric model of the balance of payments of Venezuela [PDF]
, 1989 PhDThe fundamental purpose of this study is to build an econometric model of the Venezuelan Economy to concentrate primarely on the following: first, to analyse the effects of monetary, fiscal and external disturbances on expenditures, prices and on ...
Escalante, Alexander Jose Guerrero
core +4 more sources
Catalyst Deactivation: Control Relevance of Model Assumptions [PDF]
Modeling, Identification and Control, 2000 Two principles for describing catalyst deactivation are discussed, one based on the deactivation mechanism, the other based on the activity and catalyst age distribution.
Bernt Lie, David M. Himmelblau
doaj +1 more source
Study on the regional characteristics during foam flooding by population balance model
Energy Exploration & Exploitation, 2021 Foam flooding is an effective method for enhancing oil recovery in high water-cut reservoirs and unconventional reservoirs. It is a dynamic process that includes foam generation and coalescence when foam flows through porous media.
Zhongbao Wu +3 more
doaj +1 more source
Grinding kinetics governed by packing volume in binary glass–alumina milling
Journal of Asian Ceramic SocietiesThe attritor grinding of a binary glass and alumina system was studied to clarify how the packing volume controls the comminution kinetics and morphology of the ground glass.
Chiharu Tokoro +6 more
doaj +1 more source
Projecting the future of Ayapel Cienaga: a hydroecologic analysis under climate change scenarios
Revista Facultad de Ingeniería Universidad de Antioquia, 2020 We developed a three-component model to evaluate the present and future hydrological behavior of Ayapel Cienaga under different scenarios of climate variability and human intervention associated with fishing and mining activities and the maintenance of ...
Juan Pablo Serna-López +1 more
doaj +1 more source
Application of a transient hygrothermal population model for house dust mites in beds: assessment of control strategies in UK buildings [PDF]
, 2011 This article discusses the capabilities and the application of an innovative combined hygrothermal and population model to assess the impact of building design and occupant behaviour on house dust mite populations in a mattress. The combined model is the
Crowther, David +23 more
core +1 more source
PINN-PBE Model for Describing Gibbsite Crystallization Dynamics
MetalsThe industrial testing of the optimal control system for the gibbsite precipitation area revealed the cases where the optimizer finds and exploits vulnerabilities in the predictive data-driven model, recommending erroneous control actions.
Tatiana E. Litvinova +2 more
doaj +1 more source
Population growth and our caring capacity [PDF]
, 1994 This pamphlet was prepared by the Population Council for the landmark International Conference on Population and Development (ICPD), held in Cairo in ...
Population Council
core +1 more source