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      • KCI등재

        Density Correlation of Solubility of C. I. Disperse Orange 30 Dye in Supercritical Carbon Dioxide

        심재진,김선욱,Jong-Kook Baek,Gwang-Soo Lee 한국화학공학회 2004 Korean Journal of Chemical Engineering Vol.21 No.1

        The solubility of C. I. Disperse Orange 30 (O30) dye in CO2 has been measured by using a closed-loop (batch) solid-fluid equilibrium apparatus at temperatures between 313 and 393 K and at pressures between 11 and 33 MPa. Kumar and Johnston’s equation based on Chrastil’s concept has been used to describe the experimental solubility data. The solubility versus density plot appears much simpler than the solubility versus pressure plot. The isotherms are nearly straight and parallel to each other, as seen in the previous studies. Peng-Robinson equation of state (PR EOS) has also been used successfully in modeling the dye solubility in supercritical carbon dioxide as a function of pressure or density of the fluid phase. The validity of this method has been verified by the vapor pressure calculation.

      • KCI등재

        포괄임금제의 쟁점과 전망

        심재진 한국노동법학회 2017 노동법학 Vol.0 No.64

        This article looks at the Blanket Wage System(BWS) at the time when the new Government has announced a proposal to restrict the BWS. It aims to make clear the interpretational issues in relation to the BWS and review proposals for legislative changes for the restriction or prohibition of the BWS. To begin with, the article overviews the court cases concerning the BWS over the last several decades. It finds that the rulings of the Supreme Court have been clearer since 2009. In 2009, the Court held that agreements for the BWS have not to be admitted as real ones for the BWS when clauses in employment contracts, work rules or collective agreements provide that each of overtime payments is to be paid separately. In 2010, furthermore, the Court held that the real agreements for the BWS is not valid when payments based on actual working time are less than payments on the BWS. The article criticizes such rulings while it welcomes changes to more strict and clearer regulation for the BWS. It do so for the reason that the Court does not indicate clearly the meaning of the occasion where working time is difficult to grasp. If the occasion takes place, according to the court rulings, the BWS is allowed to be maid. Moreover it maintains that the BWS has to be regarded as valid only when working time is impossible or meaningless to grasp. Lastly, the article proposes certain directions on legislative regulation in relation to the BWS. Such regulation, it suggests, is necessary to introduce not because the BWS has been one of the reasons that most workers have to work long hours but because workers in certain areas are badly treated because of the BWS. The former can be successfully tackled by strengthening enforcement of labour law according to the rulings of the Court above without legislative changes.

      • KCI등재

        공공기관 경영평가성과급의 임금성

        심재진 한국고용노사관계학회 2019 産業關係硏究 Vol.29 No.3

        This article looks at two recent cases of the Supreme Court on whether Pay for Business Performance of Public Institutions(PBPPI), which is a type of pay paid to all employees based on annual ratings of the Institutions. In the two cases, the Supreme Court recognized the wage nature of the PBPPI. The Supreme Court did so by applying the three-criteria rule for the determination of the wage-nature of a particular pay, which the Court has been using in other cases. However, this article confirms that the Supreme Court's judgment in the cases affects the meaning of the three-criteria rule in relation to performance-based pay. The Supreme Court's judgment in the recent two cases presupposes a change in the meaning of the third criterion of the determination rule, which is the obligatory nature of the pay. The Supreme Court has already recognized the obligatory nature of pay for individual performance in the sense that the company can not refuse the payment if the payment requirement is satisfied. Now the Court has extended to apply this sense of the third criterion to pay for collective performance like the PBPPI in the two cases. In addition, this article confirms that the change in the meaning of the third criterion has made the second criterion(the regularity and continuity of a pay) meaningless. Next, this article points out that the Supreme Court's judgment in the two cases does not mention the first criterion of the three-criteria rule, which is the relatedness of pay to providing work. The Supreme Court did not so even though the PBPPI seems less closely related to providing work than pay for individual performance. This attitude of the Supreme Court can be interpreted to show that the Court presupposes that the PBPPI meets the first criterion. However, this article further argues that the relatedness of all types of pay for collective performance to providing work, including the PBPPI, should be acknowledged if they can not be denied as a collaborative outcome of providing work. 이 글은 공공기관 경영평가성과급의 임금성에 관한 대법원의 최근 판례 두개를 검토한다. 대상 사건들에서 대법원은 집단성과급의 일종인 공공기관 경영평가성과급의 임금성을 인정함으로써, 성과급의 임금성을 개인성과급은 물론 집단성과급까지 확대하였다. 이러한 의의에도 불구하고 대법원은 임금성판단 법리 자체는 이전과 다르지 않은 것처럼 설시하였다. 그러나 이 글에서는 대상 사건들에서의 대법원의 판단이 집단적 성과급에 대한 이전의 사건에서의 대법원의 판단과 상치된다는 점을 확인한다. 따라서 대상 사건들에서대법원은 집단적 성과급과 관련하여 임금성 판단 기본 법리의 세 번째 지표인 ‘지급의무성’의 의미를 ‘지급사유 발생의 확정성’에서 지급요건이 갖추어질 경우 회사가 지급을 거부할 수 없다는 의미로 변경하였다. 이미 개인성과급과 관련해서는 후자의 지급의무성이 적용되고 있었기 때문에 대상 사건들을 통해 대법원은 집단성과급에도 이를 확대하여 적용한 것이라 볼 수 있다. 더 나아가 이 글은 이와 같은 지급의무성의 의미에 대한 해석의 변경으로 논리 필연적으로 두 번째 지표인 정기성․계속성 지표가 임금성 판단에서 더이상 의미가 없게 되었음을 확인한다. 다음으로 이 글은 대상 사건에서의 대법원 판단이 근로제공 관련성에 대해서 전혀 언급하지 않은 것에 대해서 지적한다. 집단성과급인 경영평가성과급은 개인성과급보다 근로제공 관련성이 덜 밀접해 보일 수 있는데도, 대법원은 이에 대해서 전혀 언급하지 않았다. 대법원의 이러한 태도는 과거 정기상여금에 대한 대법원의 판단과 동일하게 경영평가성과급의 근로제공 관련성을 당연히 추정한다고 해석할 수는 있다. 그러나 경영평가성과급이 아닌 다른 집단성과급에 대해서도 근로제공 관련성을 당연하게 추정한다고 볼 수 없다면, 경영평가성과급의 근로제공 관련성에 대한 법리의 제시는 필요했었다. 이 글은 더 나아가 경영평가성과급을 포함한 집단성과급이 해당 근로자들의근로제공의 협업적 결과라는 측면도 부정할 수 없는 경우 근로제공 관련성이인정되어야 한다고 주장한다.

      • 다단계 디프드로잉의 공정해석에 관한 연구

        심재진,전병희,김낙수 대한기계학회 1993 대한기계학회논문집 Vol.17 No.12

        Multi-stage deep drawing is an important sheet metal forming process. The deformation mechanisms of sheet metals during forming processes are complicated mainly due to the geometry and the lubrication of tools involved, the formability and the anisotropic behaviour of the material. The multi-stage deep-drawing processes including normal-drawing, reverse-drawing, and re-drawing are analyzed by use of the rigid-plastic finite element method. The anisotropic behaviour represented by r-value can be incorporated into the formulation. Punch/die loads and thickness distributions were obtained as results of simulating axisymmetric deep drawing processes. The computed results showed good agreements with experiments.

      • KCI등재

        탄탈륨 카바이드 분말 특성제어를 위한 원료 전처리 기술

        심재진,최상훈,박지환,박일규,임재홍,박경태,Sim, Jae Jin,Choi, Sang Hoon,Park, Ji Hwan,Park, Il Kyu,Lim, Jae Hong,Park, Kyoung Tae 한국분말야금학회 2018 한국분말재료학회지 (KPMI) Vol.25 No.3

        We report the feasibility of TaC production via self-propagating high temperature synthesis, and the influence of the initial green compact density on the final composite particle size. Experiments are carried out from a minimum pressure of 0.3 MPa, the pressure at which the initial green body becomes self-standing, up to 3 MPa, the point at which no further combustion occurs. The green density of the pellets varies from 29.99% to 42.97%, as compared with the theoretical density. The increase in green density decreases the powder size of TaC, and the smallest particle size is observed with 1.5 MPa, at $10.36{\mu}m$. Phase analysis results confirm the presence of the TaC phase only. In the range of 0.3-0.5 MPa, traces of unreacted Ta and C residues are detected. However, results also show the presence of only C residue in the matrix within the pressure range of 0.6-3.0 MPa.

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