نتایج جستجو برای: choice experiment method ce
تعداد نتایج: 2164636 فیلتر نتایج به سال:
Regression equations of sediment rating curves are too biased due to the logarithmic of the discharge and suspended sediment data. In this study, correction coefficients were used to improve the results of river sediment estimation methods in Bashar and Zohreh hydrometric stations with different indices of accuracy and precision. The present study aims to evaluate the performance of five method...
Nioboaeschynite-(Ce), ideally Ce(NbTi)O(6) [cerium(III) niobium(V) titanium(IV) hexa-oxide; refined formula of the natural sample is Ca(0.25)Ce(0.79)(Nb(1.14)Ti(0.86))O(6)], belongs to the aeschynite mineral group which is characterized by the general formula AB(2)(O,OH)(6), where eight-coordinated A is a rare earth element, Ca, Th or Fe, and six-coordinated B is Ti, Nb, Ta or W. The general st...
This paper describes the effects of TGT (Team Games Tournament) model assisted by Icebreaking on student’s learning outcomes in mathematics elementary school . The population research involves all student s class IV sample was selected through a probability sampling technique , which consisted 24 students for IV-A as control and IV-B an experimental class. used quantitative method quasi-experim...
Agricultural activities play an important role in shaping landscape, particular, Lithuania, where agricultural land accounts for more than half of the surface land. These landscape services are used by people as public goods, contributing to societal welfare. The aim this study is assess value identifying consumer preferences and willingness pay attributes using choice experiment (CE) method. a...
Repeated food scandals in China have prompted growing consumer consciousness on safety and health. Organic food, considered to be of higher quality, is being increasingly demanded by Chinese consumers. This study examines preferences for organic labels provide insight the sustainable development Oolong tea industry. Research was conducted using choice experiment (CE) method Fujian Guangdong Pro...
the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...
The package support.CEs provides seven basic functions that support the implementation of choice experiments (CEs) in R: two functions for creating a CE design, which is based on orthogonal main-effect arrays; a function for converting a CE design into questionnaire format; a function for converting a CE design into a design matrix; a function for making the data set suitable for the implementa...
La théorie des réseaux de Petri est née de la thèse de Carl Adam Petri [PE 62]. Mais, bien d’autres chercheurs ont contribué à ce qui est devenu “les réseaux de Petri”. Certains sont explicitement partis des travaux de Carl Adam Petri, les ont légèrement modifiés et ont développé les notions que ce dernier avait introduites. D’autres ont menés indépendamment des travaux sur la représentation et...
Résumé : Dans une ontologie de domaine, une association sémantique entre deux entités (concepts, attributs d’un concept) est une représentation d’un chemin ou d’un lien sémantique (LS) indirect entre elles. Un défi prometteur pour le Web sémantique est de développer des méthodes pour découvrir des données fortement liées dans un nombre important d’associations sémantiques rassemblées à partir d...
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