• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1985년도 춘계학술대회
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• pp.29-32
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• 1985

• 대한수학회보
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• 제59권3호
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• pp.643-657
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• 2022

Let R be a ring and S a multiplicative subset of R. An R-module T is called u-S-torsion (u-always abbreviates uniformly) provided that sT = 0 for some s ∈ S. The notion of u-S-exact sequences is also introduced from the viewpoint of uniformity. An R-module F is called u-S-flat provided that the induced sequence 0 → A ⊗_R F → B ⊗_R F → C ⊗_R F → 0 is u-S-exact for any u-S-exact sequence 0 → A → B → C → 0. A ring R is called u-S-von Neumann regular provided there exists an element s ∈ S satisfying that for any a ∈ R there exists r ∈ R such that sα = rα². We obtain that a ring R is a u-S-von Neumann regular ring if and only if any R-module is u-S-flat. Several properties of u-S-flat modules and u-S-von Neumann regular rings are obtained.

• 한국습지학회지
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• 제13권3호
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• pp.385-394
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• 2011

본 연구에서는 유역의 배수구조를 지표면과 하천으로 구분하여 확산-유추 지형학적 순간단위도의 최적 매개변수를 산정하였다. 모형의 매개변수는 지표면과 하천 각각의 유속($u_c$, $u_h$) 및 확산계수($D_c$, $D_h$)로 구성하였다. 대상유역은 보청천 유역의 탄부 소유역을 선정하였으며, 대상유역의 하천망은 Strahler 차수법칙에 의해 4차 하천으로 분류되었다. 최적화 기법은 SCE-UA을 적용하였으며, 추정된 최적 매개변수는 다음과 같다; $u_c$ : 0.589 m/s, $u_h$ : 0.021 m/s, $D_c$ : $34.469m^2/s$, $D_h$ : $0.1333m^2/s$. 추정된 매개변수의 검증결과 평균 첨두유량 오차는 약 11 %, 첨두시간 오차는 0.3 hr로 양호하게 나타났다. 또한 매개변수들의 변동성을 살펴본 결과 하천확산계수($D_c$)는 수문응답함수에 큰 영향을 미치지 못함을 알 수 있었으며, 향후에는 이러한 결과들을 고려함으로서 모형을 좀 더 간편화할 수 있을 것으로 기대된다.

• 호남수학학술지
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• 제36권4호
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• pp.913-919
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• 2014

We investigate the relationships between the space X and the hyperspaces concerning admissibility and connectedness im kleinen. The following results are obtained: Let X be a Hausdorff continuum, and let A, $B{\in}C(X)$ with $A{\subset}B$. (1) If X is c.i.k. at A, then X is c.i.k. at B if and only if B is admissible. (2) If A is admissible and C(X) is c.i.k. at A, then for each open set U containing A there is a continuum K and a neighborhood V of A such that $V{\subset}IntK{\subset}K{\subset}U$. (3) If for each open subset U of X containing A, there is a continuum B in C(X) such that $A{\subset}B{\subset}U$ and X is c.i.k. at B, then X is c.i.k. at A. (4) If X is not c.i.k. at a point x of X, then there is an open set U containing x and there is a sequence $\{S_i\}^{\infty}_{i=1}$ of components of $\bar{U}$ such that $S_i{\longrightarrow}S$ where S is a nondegenerate continuum containing the point x and $S_i{\cap}S={\emptyset}$ for each i = 1, 2, ${\cdots}$.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.376-381
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• 1998

The large scaled field test by prefabricated vertical drains was performed to evaluate the superiority of vertical discharge capacity for drain materials through compare and analyze the time-settlement behavior with drain spacing and the compression index and consolidation coefficient obtained by laboratory experiments and field monitoring system 1. The relation of measurement settlement( $S_{m}$) versus design settlement( $S_{t}$) and measurement consolidation ratio( $U_{m}$) versus design consolidation ratio( $U_{t}$) were shown $S_{m}$=(1.0~l.1) $S_{t}$, $U_{m}$=(1.13~l.17) $U_{t}$, at 1.0m drain spacing and $S_{m}$=(0.7~0.8) $S_{t}$, $U_{m}$=(0.92~0.99) $U_{t}$ at 1.5m drain spacing, respectively. 2. The relation of field compression index( $C_{cfield}$) and virgin compression index( $V_{cclab}$) was shown $C_{cfield}$=(1.0~1.2) $V_{cclab}$, But it was nearly same value when considered the error with determination method of virgin compression index and prediction method of total settlement. 3. field consolidation coefficient was larger than laboratory consolidation coefficient, and the consolidation coefficient ratio( $C_{h}$/ $C_{v}$) were $C_{h}$=(2.4 ~ 3.0) $C_{v}$. $C_{h}$=(3.5 ~ 4.3) $C_{v}$ at 1.0m and 1.5m drain spacing and increased with increasing of drain spacingngasing of drain spacingng spacingng

• 대한수학회논문집
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• 제38권1호
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• pp.97-112
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• 2023

In this paper, we introduce and study the u-S-weak global dimension u-S-w.gl.dim(R) of a commutative ring R for some multiplicative subset S of R. Moreover, the u-S-weak global dimensions of factor rings and polynomial rings are investigated.

• 통상정보연구
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• 제11권3호
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• pp.265-286
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• 2009

Dumping describes the practice of international price discrimination whereby a producer or exporter sells merchandise in an export market at less than fair value. The U.S. antidumping statutory framework is embodied in the Tariff Act of 1930. The Act states that "dumping" refers to the sale or likely sale of goods at less than fair value. 19 U.S.C. $\S$ 1677(34). The Commerce Department and the Commission are jointly responsible for administering the antidumping law. Commerce determines whether foreign merchandise is being sold in the United States at less than fair value, and the Commission determines whether a domestic industry producing a product like the imported merchandise has been materially injured or threatened with material injury by reason of imports of that product. Recently, in U.S. v. Eurodif, the Supreme Court held the question whether the Commerce can reasonably determin that foreign merchandise has been sold within the meaning of the antidumping law in U.S.. Should 19 U.S.C. Section 1673, which calls for "antidumping" duties on foreign goods, but not services, that sell at less than fair value in the U.S., apply to imported low enriched uranium? Yes. In a unanimous opinion written by Justice David H. Souter, the Supreme Court held that the Commerce Department's view of imported low enriched uranium, as the sale of goods rather than services, was permissible. It reasoned that, since 19 U.S.C. Section 1673 did not specify whether it applied to the production of low enriched uranium, it was left to the reasonable interpretation of the Commerce Department to determine. Accordingly, the Court found the Commerce Department interpreted the statute reasonably.

• 한국중재학회지:중재연구
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• 제25권3호
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• pp.59-90
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• 2015

Since 1855, the federal courts of the United States have been empowered to assist in the gathering of evidence for use before foreign tribunals. Today, the source of that authority is 28 U.S.C. ${\S}1782$ which permits the courts to order a person "to give [ ] testimony... or to produce a document ... for use in a proceeding in a foreign or international tribunal${\cdots}$ ." It was generally assumed, until the United States Supreme Court's decision of Intel Corp. v. Advanced Micro Devices, Inc. in 2004, that arbitration tribunals were not "foreign tribunals" for purposes of 28 U.S.C. ${\S}1782$. While the issue in Intel did not involve an arbitration tribunal, a statement by the Supreme Court in dicta has called into question the exact parameters of the words "foreign tribunal," resulting in a split of opinion among the federal courts of the United States. This article explores the legislative history of 28 U.S.C. ${\S}1782$, examines the United States Supreme Court decision in Intel, and discusses the split among the courts of the United States regarding the interpretation of "foreign tribunal." The article further surveys emerging issues: is an arbitration tribunal in a case involving foreign parties and seated in the United States a "foreign tribunal"; does agreeing to the use of the IBA Rules on the Taking of Evidence in International Arbitration circumscribe the use of 28 U.S.C. ${\S}1782$; can a party be ordered to produce documents located outside the United States; and is there a role for judicial estoppel in determining whether an application pursuant to 28 U.S.C. ${\S}1782$ should be granted?

• Asian-Australasian Journal of Animal Sciences
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• 제2권3호
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• pp.228-230
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• 1989

• 자원리싸이클링
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• 제22권3호
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• pp.57-64
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• 2013

희토류산화물인 $Eu_2O_3$, 우라늄산화물인 $UO_2$ 및 $U_3O_8$, $Eu_2O_3$와 우라늄산화물의 혼합물에 대한 선택적 황화반응을 조사한 후에, $(U,Eu)O_2$ 및 $(U,Eu)_3O_8$와 같은 Eu 고용 우라늄산화물, Eu 고용 우라늄산화물의 고온 산화열처리 상분리 생성물인 Eu 농도가 높은 $(U,Eu)_4O_9$와 $U_3O_8$의 혼합상에 대한 황화반응 특성을 $400-800^{\circ}C$에서 조사하였다. $Eu_2O_3$ 및 우라늄산화물의 혼합물의 경우에는 $450^{\circ}C$에서 Eu와 우라늄 산화물간의 반응이 없이 $Eu_2O_3$만 $Eu_3S_4$로 전환되었다. $(U,Eu)_3O_8$ 및 $(U,Eu)O_2$에서는 반응온도 $600^{\circ}C$까지는 우라늄산화물과 동일한 황화반응 거동을 보였으며, $800^{\circ}C$에서는 Eu 농도가 높은 $(U,Eu)S_x$과 ${\alpha}-US_2$ 상이 생성되었다. 고온 산화열처리 상분리 생성물은 $600^{\circ}C$에서 $(U,Eu)S_x$과 UOS 상이 생성되었다. 상분리 생성물을 환원하여 얻은 Eu 농도가 높은 $(U,Eu)O_2$와 $UO_2$의 혼합상은 $450^{\circ}C$에서 $(U,Eu)O_2$은 산황화물인 (U,Eu)OS로 전환되고 $UO_2$는 반응하지 않았다.