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열역학 모델링을 활용한 SCM의 반응도 예측에 관한 연구
다니엘타리쿠 ( Daniel Tariku ),박솔뫼 ( Solmoi Park ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
The materials investigated in this study are cement blended with fly ash and slag. For measurement of reactivity, the procedure in this study involves measuring the bound water content of hydrated blended samples using TGA and determining at which specific amount of SCM we can get bound water content from thermodynamic modelling that is similar to measurements from TGA. This technique is relatively simple and straightforward than the conventional methods available to estimate reactivity of SCMs and its predictions are shown to be fairly close to reactivity measurements from selective dissolution.
2012년 미국 농업법(Farm Bill) 제정 동향과 시사점
송주호(JooHo Song),임정빈(JeongBin Im),이현옥(HyunOk Lee),다니엘 썸너(Daniel Sumner),박한울(Hanul Park) 한국농촌경제연구원 2012 한국농촌경제연구원 정책연구보고서 Vol.- No.-
Since 1949 many provisions of U.S. agricultural policy have been reauthorized every few years as primarily as temporary amendments of Agriculture Adjustment Act of 1938 and the Agricultural Act of 1949. Many provisions of the 2008 Farm Bill expired on September 30, 2012 (the end of the fiscal years for the U.S. federal government). Others will expire on December 31, 2012. The House of Representatives Committee on Agriculture passed a bill out of their committee in the middle of the summer, 2012 that was much like the Bill that passed the full U.S. Senate in the early summer. However, the leadership of the House refused to schedule the bill for consideration. This delay was in part because many members of the House objected to high spending on food programs and some objected to farm subsidy provisions as well. The two bills continued food subsidy programs with little change and authorized continuing environmental and conservation programs. The commodity programs would be modified by eliminating $5 billion per year in direct payments to those with a product history in grains, oilseeds and cotton and replacing that (and ineffective prices supports and price-based income supplements) with “shallow loss” payments that apply when revenue (or price) fall below recent high levels. The new programs could be excessively expensive or have no budget cost depending on yields and prices for major covered commodities. These “shallow loss” subsidies are designed to supplement on top of heavily subsidized crop insurance programs that cover deeper revenue and yield losses. A special provision for the dairy industry would add a supply management quota program requiring periodic cuts in milk producers. Many policy advocates who favor the provisions of the farm bills under consideration argued for passage of the new legislation as soon as possible. They are concerned that in a lame duck session and especially in a new 2013 congressional session, budget pressures will dominate and the budget for farm and food subsidies will be cut substantially. There is a chance that with more time and less election pressure, the farm subsidies will be cut rather than readjusted to spend less on direct payments and more of revenue-based insurance-like support. More pressure to cut crop insurance subsidy rates may also develop as the budget exposure of these program becomes more apparent. Farm Bills are commonly delayed. The 1985 farm bill became law on December 23, 1985, the “1995 Farm Bill” actually became law in the spring of 1996, and the 2007 farm bill did not actually take effect until June of 2008. So, the current impasse was more like business as usual than an aberration. Nonetheless, there is much policy and political concern on the part of advocates of specific policy provisions. Generally those who favor the policies included in the Bill that passed the U.S. Senate and the similar bill that passed the House Agriculture committee express the most concern about the farm bill delay. Others such as Washington Post and other farm subsidy skeptics are pleased that more time has been allotted to debate the course of farm and food subsidies and regulations.