• Bulletin of the Korean Chemical Society
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• v.7 no.2
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• pp.124-129
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• 1986

The effects of molecular attraction and orientations for the energy mismatch variance, vibrational energy level and double-quantum transition, in the vibration-vibration energy exchange, have been considered. The contribution of molecular attraction increases the exchange rate of the purely repulsive interaction, in general, significantly, but which becomes smaller as the temperature is increased. As the energy mismatch is increased, its contribution is also increased, but which is small. However, its contribution for the double-quantum transition is very paramount. At each orientation, the exchange rate constants have been calculated and compared with the results for rotational average, and it is found that the exchange rate is a strong function of the orientation angles of colliding molecules. We have also discussed about the system having the strong interaction such as the hydrogen bond, and it is found that for this system the preferred orientation should be considered in order to calculate the exchange rates.

• Bulletin of the Korean Chemical Society
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• v.17 no.5
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• pp.457-460
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• 1996

The principal elements of the 31P NMR chemical shielding tensors have been determined for three binuclear platinum diphosphite complexes, K4[Pt2(P2O5H2)4·2H2O ("Pt2"), K4[Pt2(P2O5H2)4Cl2]·2H2O ("Pt2Cl2"), and K4[Pt2(P2O5H2)4Br2]·2H2O ("Pt2Br2"), by using a Herzfeld-Berger graphical method for interpreting the 31P MAS spectrum. The orientations of 31P chemical shielding tensor relative to the molecular axis system are partially assigned with combination of the longitudinal relaxation study of HPO32- and the reference to known tensor orientations of related sites; the most chemical shielding component, δ33, is directed along the P-Pt bond axis. A discussion is given in which the experimental principal elements of the 31P chemical shielding tensor are related with the Pt-Pt bond distances in binuclear platinum diphosphite complexes.

• Journal of the Korean Magnetics Society
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• v.5 no.5
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• pp.465-469
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• 1995

We have investigated the effects of deposition angle on structural and magnetic properties of e-beam evaporated ${(4-{\AA}\;Co/9.2-{\AA}\;Pt)}_{23}$ multilayer thin films prepared on tilted substrates. It was found that the [111] crystallographic orientations of the multilayer thin films were not aligned with colummar growth orientations and they were remained to be normal to the substrate planes even though the deposition angle was severely oblique up to $60^{\circ}$. The analysis of the torque curve reveal that the intrinsic anisotropy energy was monotonically decreased with the deposition angle but the easy axis orientation parallel to the substrate normal was not much influenced by deposition angle.

• Nuclear Engineering and Technology
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• v.53 no.11
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• pp.3597-3611
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• 2021

The present paper studies the thermal-hydraulic behaviour of the rectangular supercritical natural circulation loop (SCNCL) using numerical model of one dimensional. Then the results of this model is confirmed with experimental and benchmark results. Variations with several geometric parameters like loop diameter, riser length, and heater length and operating conditions like heater inlet enthalpy, pressure, friction factor, and inlet and exit loss coefficient on steady-state performance are investigated for various orientations like HHHC, HHVC, VHVC and VHHC of the heater and cooler. The chances of existing static instability (Ledinegg excursion) has been investigated, which reveals that it can arise only in a low inlet enthalpy condition, far from the suggested various orientations of heater and cooler.

• International conference on construction engineering and project management
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• 2005.10a
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• pp.486-490
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• 2005

Classic construction safety management functions - such as recruitment, training, supervision, etc. - are determined by different conceptions of the role and nature of management effectiveness, and these conceptions are underpinned by related cultural values. This paper attempts to shed some light on in what way, and to what extent, does the national cultural value orientations influence individual preferences for safety management policies and practices. It presents the empirical results of a questionnaire survey administered in Pakistan targeting construction managers with safety management responsibilities. Based on the survey findings, the paper argues that there is a causal link between cultural values' orientations and preferences for, and perceptions of, safety management policies and practices.

• Steel and Composite Structures
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• v.46 no.6
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• pp.759-772
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• 2023

This manuscript presents a comprehensive mathematical model to investigate buckling stability and postbuckling response of bio-inspired composite beams with helicoidal orientations. The higher order shear deformation theory as well as the Timoshenko beam theories are exploited to include the shear influence. The equilibrium nonlinear integro-differential equations of helicoidal composite beams are derived in detail using the energy conservation principle. Differential integral quadrature method (DIQM) is employed to discretize the nonlinear system of differential equations and solve them via the Newton iterative method then obtain the response of helicoidal composite beam. Numerical calculations are carried out to check the validity of the present solution methodology and to quantify the effects of helicoidal rotation angle, elastic foundation constants, beam theories, geometric and material properties on buckling, postbuckling of bio-inspired helicoidal composite beams. The developed model can be employed in design and analysis of curved helicoidal composite beam used in aerospace and naval structures.

• Asia Marketing Journal
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• v.3 no.3
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• pp.89-109
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• 2001

본 연구에서는 판매원의 적응판매(adaptive selling)에 미치는 목적지향성(goal orientation)의 효과를 검증하였다. 판매원의 목적지향성에 영향을 미치는 요소로서 판매관리자 지향성(supervisory orientation)과 동료 피드백(coworker feedback)을 고려하였다. 판매관리자 지향성온 최종성과 지향성(end-results orientation)과 능력지향성(equability orientation)으로 구분하였고, 동료 피드백은 행동피드백(behavioral feedback)과 실적피드백(output feedback)으로 구분하였다. 판매원의 목적지향성은 학습지향성(teaming orientation)과 성과지향성 (performance orientation)으로 구분하였다. 이들 개념들 간의 관계를 가설로 설정한 후, 자동차 영업사원을 대상으로 실증분석을 하였다. 분석결과, 판매관리자의 최종성과지향성은 판매원의 학습지향성 및 성과지향성에 정적인 영향을 미치고, 동료의 실적피드백은 판매원의 성과지향에 정적인 영향을 미치는 것으로 나타났다. 그리고 판매원의 학습지향성은 적응판매에 정적인 영향을 미치나, 성과지향성에는 영향을 미치지 않는 것으로 나타났다. 이러한 결과를 토대로 관리적 시사점을 제시하였다.

• Educational Technology International
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• v.8 no.1
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• pp.1-16
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• 2007

The general aim of this article is to explicate what can be researched in our field based on the new understanding on the ability of human visual intelligence. To follow this aim, three key discussions were followed. The first is to explain why the human visual intelligence research is so important in our field and how it was neglected. The basic orientations of the research questions used in its framing and in answering are reviewed. After reviewing traditional research orientations, as the second discussion, alternative, more useful perspective for thinking about human visual intelligence is suggested. And the possibility of contribution for the future research in general is discussed. In doing so, human visual intelligence was defined in rather practically oriented ways rather than theoretically oriented ones. More practical perspectives were suggested. The third discussion is to show how to use the alternative perspectives of human visual intelligence in the areas of educational technology research. It was hoped that the article lays out conceptual groundwork for generation of educational technology research frameworks which can be used for the research conduct, reproduction and sharing by adopting practically oriented views on human visual intelligence as a new territory of educational technology research.

• Proceedings of the Korean Magnestics Society Conference
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• 2007.05a
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• pp.32.2-32.2
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• 2007

• Proceedings of the Korean Society for Rock Mechanics Conference
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• 2002.03a
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• pp.75-86
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• 2002