سال انتشار:
2021
عنوان انگلیسی مقاله:
Trade reforms and current account imbalances
ترجمه فارسی عنوان مقاله:
اصلاحات تجاری و عدم تعادل حساب جاری
منبع:
ScienceDirect- Elsevier- Journal of International Economics, 131 (2021) 103451: doi:10:1016/j:jinteco:2021:103451
نویسنده:
Jiandong Ju
چکیده انگلیسی:
Several methods quantify soil evaporation by measuring vertical moisture flux or by recording change in mass of
a soil specimen. These methods conventionally consider a non-deformable soil behaviour. However, shrinkage is
the mechanical consequence of a plastic soil to evaporation reducing the area over which evaporation can occur.
For this reason, it is imperative to take into account the gradual densification of the soil sample during evaporation in order to minimize possible measurement errors originating from the way, how the physical conditions
are simulated. To address this challenge, an improved method proposed in this paper takes into account two
aspects of soil deformation, which together have an influence on the total evaporation: (1) the reduced top soil
surface due to radial shrinkage and (2) additional evaporation from the exposed side soil surface when the
sample detaches from the sample holder. Four experiments with kaolin have been conducted in the laboratory to
explore the effect of these two aspects through the proposed methodology. In the tests conducted, considering the
changes in the area of the top soil surface and avoiding the additional evaporation from the exposed side surface
significantly improved the accuracy of evaporation quantification by 25%.
keywords: حساب جاری | آزاد سازی تجارت | Current account | Trade liberalization
قیمت: رایگان
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