• Proceedings of the ESK Conference
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• 1992.10a
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• pp.46-53
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• 1992

Finger movements in the sagittal plane mainly consist of flexion and extension about the metacarpophalangeal(MCP) and proximal interphalangeal(PIP) joints. A kinematic finger model was developed with the assumption of constant tendon moment arms. Equations of static equilibrium were derived for the finger model using the principle of virtual work. Equations of static equilibrium for the finger model were indeterminate since only three equations were available for five unknown variables(forces). The number of variables was reduced based on information on muscular activities in finger movements. Then the amounts of forces which muscles exerted to maintain static equilibrium against external loads were computed from the equilibrium equations. The muscular forces were expressed mathematically as functions of finger positions, tendon moment arms, lengths of phalanges, and the magnitude and direction of external load. The external finger strength were computed using the equations of muscular forces and anatomical data. Experiments were performed to measure finger strengths. Measurements were taken in combinations of four finger positions and four directions of force exertions. Validation of the finger models and of procedure to estimate finger strengths was done by comparing the results of computations and experiments. Significang differences were found between the predicted and measured finger strengths. However, the trends of finger strengths with respect to finger positions were similar inboth the predicted and measured. These findings indicate that the finger model and the procedure to predict finger strengths were correctly developed.

• Bulletin of the Society of Naval Architects of Korea
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• v.19 no.1
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• pp.3-14
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• 1982

In this paper, the sway added mass of a rectangular cylinder in a restricted water is considered by applying Hamilton's principle as the frequency tends to zero. The present method is an extension of Isshiki's method proposed in 1978. In the present method, it is assumed that the fluid velocity distribution in each subdomain of the fluid can be represented by higher order polynomials while Isshiki assumed linear velocity distribution. The fluid flow is assumed as a rotational motion in the present analysis. However, the results obtained from the present method show good agreement with Bai's numerical results for the case of large clearances between a canal wall and a cylinder. From Kelvin's minimum energy theorem, we can see that the value of sway added mass obtained from the present method approaches the upper bound. The approximate formula obtained in the present study takes a simple form which consists of the dimensions of the canal and the cylinder. The present formulae are derived for the cases of a rectangular cylinder swaying at the center of a narrow or wide canal relative to a cylinder, at off-center location in a canal, and in the restricted water with a single wall. From the results of numerical calculation, it is concluded that the sway added mass in restricted waters is more affected by water depth than clearance between a wall and a cylinder.

• Journal of Practical Agriculture & Fisheries Research
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• v.3 no.1
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• pp.30-47
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• 2001

This research was performed to develope a stable direct seeding method in rice cultivation using by a direct seeder with soil application. A principle of this methodology was introduced from seeding nursery system of machine transplanting enable to increase high seeding establishment direct seeding method with soil application was high of 89-95% while that of water seeding was 68%. During seeding growth plant height was ralatively small but seeding health was high. A total soil consumption of this methodology was 145kg/10a in dirll seeding and 26kg/10a in hill seeding respectively, there was 100% erected in direct seeding with soil application while water seeding was 45% in erected seeding stand. In direct seeding method with soil application total carbohydrate content was higher than that of water seeding. This machine was manufactured to attach and/or detach to a machine transplanter with riding type and machine cultivator with multipurpose. In the farmer's demonstrated rice field this method was well performed like machine transplanting in terms of rice growth and development. There was highly cost reduction for rice production like other direct seeding methods.

• The Journal of Korean Philosophical History
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• no.23
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• pp.181-216
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• 2008

This thesis is based on two points in Min-yisheng's idea: 1, knowing, consciousness, and differentiation of mind, according to which 2, Zheng-jidou's dividually observe to the same and different points of liangzhi and consciousness. Min-yisheng and the scholar on Yangming Theory named Zheng-jidou are arguing about the rights and wrongs of the Yangming Theory, the key concept of which is the same and different points of liangzhi and consciousness. At the extension of this argument, Min-yisheng also argues with Jin-chagnxie about the same and different points of knowing and consciousness. When argue with Zheng-jidou about Yangming Theory, Min-yisheng disproves the saying of "mind is principle" and "syncretism of consciousness and behavior" as well as defines liangzhi, which is the key concept of Yangming Theory, as a consciousness different from the natural principle. While disputing with Zheng-jidou about the relation between liangzhi and consciousness, Min-yisheng begins to pay attention to the relation between knowing and consciousness focused in the academy at that time. And as a result of that he also has a dispute with Jin-chagnxie about the same and different points of knowing and consciousness. The dispute between Min-yisheng and Jin-chagnxie is actually about how to look at the relation of knowing and consciousness, from the point of "non-mixed" or the point of "inseparable". Jin-chagnxie emphasizes on the un-mixed of knowing and consciousness while Min-yisheng, from the point of "inseparable", sees the consistency of the two. This thesis focuses on the argumentation of "the same and different points of liangzhi and consciousness" and "the same and different points of knowing and consciousness", the difference of the two positions and the historical meaning of this argument in ideologies.

• (The)Study of the Eastern Classic
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• no.69
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• pp.259-296
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• 2017

This thesis examines the reality of Hwaseo's view of scholarship established through the various academic roots, and explains the writing techniques in his poetic world. The results are as follows; With the roots including the Five Books of Confucianism, Five Classics, the books of Zhuxi and Songjadaejeon, Hwaseo established his own scholarship based on the principle of 'keeping of piety and acting with prudence(持敬致愼)'. And he pursued a practical discipline in parallel with 'understanding the utmost principle and extension of knowledge(致知)' and 'diligent self-cultivation(力行)'. The characteristics of his poetic techniques are the use of quotation and interweaving narrative with discussion. He did not stay in just borrowing or variations on the quotation, but gave new meanings beyond the acceptation, and even reached the point of creating newly coined words. He made pithy narratives according to historical events and character's activities, put forward some discussions, and then expressed his emotion. In particular, there were the poems described by interweaving narrative with discussion based on Mencius's historical viewpoint of 'repetition of peaceful times and troublous times one by one(一治一亂)', which could be regarded as the most representative works of his literary value as well as the essence of his scholarship and ideas.

• The Korean Society of Law and Medicine
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• v.11 no.1
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• pp.199-239
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• 2010

In 2008, the Korean Supreme Court came across a plaintiff's claim to return his deceased father who had left family more than four decades ago and lived with another spouse(de facto) in the meantime to be buried after death in a cemetery of his own choice. The major opinion decided to approve the claim, on the ground that the first legitimate son should be the "head worshiper" prescribed in the article 1008-3 of the Korean Civil Code and that the corpse belong to the head woshiper, i. e. the head woshiper has a special "limited ownership" over the corpse for the purpose of its burial and worship, adding that a deceased's disposition inter vivos, if any, be only ethically but by no means legally binding others, including the head worshiper of course. Here scrutinized are the historical developments starting from the Roman criminal law of sepulchri violatio(trespass to grave) through the Canon law of the Middle Age and the doctrinal reactions to the challenges of anatomy and surgery to the formation of the "supporting the deceased" theory in Germany as well as the similarities in other european continental countries(Switzerland, Austria and France). The comparative review shows that the right of remaining family could neither be identified as limited "ownership" nor that the controversy over a corpse be solved by exclusively attributing/distributing it to one/some of the descendants. In principle, the question should be approached in the extension of family support.

• Korean Journal of Environmental Agriculture
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• v.29 no.1
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• pp.1-6
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• 2010

Organic farming system in rice paddy is rapidly expanding in Korea. This study was to find out optimum japonica rice cultivars for organic farming. A field research was conducted to evaluate the characteristics of japonica rice cultivars under no-tillage paddy at Doo-ryangmyeon, Sacheon, Gyeongsangnam-do, Korea. The experimental soil was Juggog series (silty clay loam: 56.0% silt, 31.2% clay and 12.8% sand). In experiment, ten lines of Japanese rice cultivars were tested under no-tillage amended with rye (NTR) and no-tillage without cover crop treatment (NTNT). In addition, two Korean japonica rice cultivars as check cultivars were used in this study. The grain yield in NTR was significantly higher in 6.13 Mg $ha^{-1}$ for Kinuhikari, 5.30 Mg $ha^{-1}$ for Komekogane, 5.25 Mg $ha^{-1}$ for Kosihikari, 5.22 Mg $ha^{-1}$ for Mazizbare and 5.12 Mg $ha^{-1}$ for Akitakomachi compared to two Korean rice cultivars (4.57 Mg $ha^{-1}$ for Hwayoungbyeo and 4.00 Mg $ha^{-1}$ for Ilmibyeo) in that order. While, grain yield in NTNT was significantly higher in 4.90 Mg $ha^{-1}$ for Akitakomachi 3.81 Mg $ha^{-1}$ for Hinohikari, 3.74 Mg $ha^{-1}$ for Umezkusi, 3.67 Mg $ha^{-1}$ for Kosihikari and 3.54 Mg $ha^{-1}$ for Dondokuri compared to 3.02 Mg $ha^{-1}$ for Ilmibyeo and 2.36 Mg $ha^{-1}$ for Hwayoungbyeo, respectively. The number of panicle per $m^2$ and grain number per panicle were indispensible for increasing the yield of rice. These results were able to find out optimum japonica rice cultivar Akitakomachi for organic farming in no-tillage paddy.

• Bulletin of the Society of Naval Architects of Korea
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• v.27 no.2
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• pp.55-62
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• 1990

In this paper, another method for system reliability analysis, called the extended incremental load method, is introduced. The method is an extension of the conventional incremental load method and has been developed aiming at evaluating the probability of system failure(or system reliability) of continuous structures such as floating offshore structures under the multiple loading condition, more realistically considering the post-ultimate behaviour of failed components and directly using the strength formulae of principle components in a structure with employing the modified safety margin equation proposed herein in the system analysis. The method has been applied to the Hutton TLP operated in the Hutton field in the North Sea and a certain variant of the design using the TLP Rule Case Committee type improved strength models. System failure probability and corresponding system reliability indices are derived for a more economical and efficient design. The redundancy characteristics are also addressed. The TLP forms are shown to possess high reserve strength and system safety.

• Composites Research
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• v.13 no.3
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• pp.9-20
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• 2000

Free vibration characteristics of a cantilevered laminated composite beam with multiple non-propagating transverse open cracks are investigated. In the present analysis a special ply-angle distribution referred to as asymmetric stiffness configuration inducing the elastic coupling between chord-wise bending and extension is considered. The multiple open cracks are modelled as equivalent rotational springs whose spring constants are calculated based on the fracture mechanics of composite material structures. Governing equations of a composite beam with open cracks are derived via Hamilton's Principle and Timoshenko beam theory encompassing transverse shear and rotary inertia effect is adopted. The effects of various parameters such as the ply angle, fiber volume fraction, crack numbers, crack positions and crack depthes on the free vibration characteristics of the beam with multiple cracks are highlighted. The numerical results show that the existence of the multiple cracks in an anisotropic composite beam affects the free vibration characteristics in a more complex fashion compared with the beam with a single crack.

• Journal of Navigation and Port Research
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• v.32 no.5
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• pp.321-326
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• 2008

Recently the large sea bridge's construction crossing harbor and main ship's route have been propelled in the domestic so that it is active for the smoothly traffic flow of inland transportation and road user's convenience. However, it can bring about the trouble to ensure marine traffic safety if it is built that sea bridge's construction sets to an economy principle in the extension of the land road system. We're adopting Ship Handling Simulation in representative method for the influence assessment of marine traffic safety and danger elements beforehand. This research attempts to show the problems through the comparison and analysis of the reports relating to the sea bridge construction for 4 organization possessing Ship Handling Simulation. Finally, We offer the necessity of standardization on performing and assessment method of simulations.