• Ocean and Polar Research
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• v.26 no.4
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• pp.669-678
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• 2004

Coastal states are adopting maritime boundary delimitation as their primary maritime policy because maritime jurisdiction directly relates to vast economic interest. This becomes specially important and sensitive when complex maritime boundary issues are involved between neighboring coastal states. China has not actively carried out nor declared maritime boundary delimitation until recently with any country except Agreement between China and Viet Nam on the demarcation of the territorial water, the exclusive economic zones and the continental shelf of China and Vet Nam in the Gulf of Tonkin on 25 December 2000 (hereinafter, the Gulf of Tonkin Agreement). The principles that governs maritime boundary delimitation are to consider primarily an agreement between States concerned, however, if no agreement can be reached, all relevant circumstances are considered to achieve an equity between concerned States. Relevant circumstances are length of coastline, form of coastline, existence and position of island or islands, speciality of geology/topography, and factor of economy and deffnce. Factors which sinologists are considering in regard to continental shelf delimitation of the Yellow Sea are as follows; i) geographical factor, ii) geological factor, iii) topographical factor, iv) environment and ecological (factor, v) historic interest, and vi) social and economic interest. The 'Gulf of Tonkin Agreement' is completed by basically applying the principle of delimitation according to median line which seems that China has adopted the maritime boundary delimitation principle of 'half and half' which was the intention of chinese government. At the same time, China recognized Viet Nam's dominion and sovereign right over the partial exclusive economic zone and the continental shelf of Dao Bach Long Vi in Gulf of Tonkin. This case can be considered as an example of mutual concession or compromise in delimiting maritime boundary for states of concerned.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.1 no.1
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• pp.23-31
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• 1976

When Television signal of VHF and UHF channel is retransmitted at the relay system with 6MHz Bandwidth including video and aural signals, the image is often affected with the unnatural changes of output amplitude frequency response within ttle region of dual sideband near to the carrier frequency. These phenomena are caused by the unnecessary lower sideband due to the spurious emission at the local oscillator, the nonlinear distortion in the linear amplifier, the intermoudulation distortion with the components of neighboring signal, the AM-PM conversion, and the envelope delay distortion. From the output characteristics, considering above results, the chief cause is caused by nonlinear response and has an effect on the bias states. Finally, it is confirmed that the effects on neighboring signal appear high in case of Down conversion than Up conversion and obtained the method for reducing the effects on the system.

• Maritime Security
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• v.1 no.1
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• pp.119-148
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• 2020

The purpose of this study is to examine the perceptions of neighboring countries on the gray zone and to explore Korea's maritime strategy. The concept of gray zones appears in various ways from country to country. In international relations, the gray zone is a comprehensive space between war and peace. The gray zone in the ocean is an unstable space in which competition between the US and China is represented and proxy wars are possible, and the gray zone needs strategic management. This study summarizes the concept of gray zones in the maritime security field, examines the gray zone strategies of neighboring countries, and suggests Korea's gray zone strategies. In particular, the recognition of the gray zone itself is the core of the problem, and it is necessary to strengthen information sharing to clarify the problem about the gray zone and accurately recognize the gray zone situation. The CMG(Complex Maritime Geostrategy) framework attempted in this study is expected to be helpful in understanding the nature of various gray zone issues around Korea and preparing for a geostrategy based on the analysis.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.699-707
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• 2016

The purpose of this study, including the Korea stock market and neighboring countries markets is seeing a look at the correlation and synchronization phenomenon. For this purpose, which is expected to have an impact on Korea's stock market, selection the United States and China, Japan, Germany on behalf of the European analyzed the data of the last 151 months. Any analysis, Korea market appeared to show a high correlation with the synchronization phenomenon in Germany and the United States. However Korea and Japan exhibited a low correlation. While the US market showed a very high correlation with Germany but showed a low correlation with China. China has been judged by the proprietary market due to a low correlation with the United States and Japan. The Japanese market has been more affected in Germany and the United States than Asian markets. German market is analyzed to influence the US market under the influence of the Asian market.

• Bulletin of the Korean Chemical Society
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• v.30 no.9
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• pp.2061-2065
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• 2009

Two simple algorithm modifications are made to the THRASH data retrieval program with the aim of improving analysis speed for complex Fourier transform ion cyclotron resonance (FTICR) mass spectra. Instead of calculating the least-squares fit for every charge state in the backup charge state determination algorithm, only some charge states are pre-selected based on the plausibility values obtained from the FT/Patterson analysis. Second, a modification is made to skip figure-of-merit (FOM) calculations in the central m/z region between two neighboring peaks in isotopic cluster distributions, in which signal intensities are negligible. These combined modifications result in a significant improvement in the analysis speed, which reduces analysis time as much as 50% for ubiquitin (8.6 kDa, 76 amino acids) FTICR MS and MS/MS spectra at the reliability (RL) value = 0.90 and five pre-selected charge states with minimal decreases in data analysis quality (Table 3).

• Strategy21
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• s.44
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• pp.54-78
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• 2018

The core of the current constitutional amendment pursued by the Abe administration depends on the status of the Japanese Self-Defense Forces, which include the right to engage in war, in the legal and regular military positions. This is an important turning point for the Abe administration, which aims to become a normal country for Japan, and it is a series of steps that followed in the revision of the U.S. and Japan guidelines in 2015 and the overhaul of the security law in 2016. In this paper, we propose building "A navy Attractive to Alliances" as a way to secure Korea's maritime security under the current security environment. The term "attraction" refers to the alliance "first priority" especially in the United States. The way to do this is to transform the paradigm of the ROK-U.S. alliance into a naval hub in the vast seas, which will allow us to strengthen our national defense and even deter threats from neighboring countries. To this end, our navy needs to have a more active approach to U.S. East Asian strategy. If we can convince the United States to be a nation that contributes more to its East Asian strategy, it will only lead to a strengthening of the status of its alliance and expansion of its unilateral support and military capability against Japan, thus minimizing Japan's influence.

• East European & Balkan Studies
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• v.32
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• pp.257-281
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• 2012

Are the policies and strategies which weak and small states choose to follow for ensuring their's own security meaningless? Can the fate of weak states be guaranteed only by the neighboring benign strong states and be in certain international relations favoring for them? In this paper, to answer these questions, what kinds of security policies and foreign policies had small states chosen which were in the face of threats of great powers will be examined. Between the two world war, the series of event which took place in central and eastern European countries(CEEc) have been selected to examine the hypothesis and theories of international relations and foreign policies, and at the same time cited as examples of failed foreign policy and security strategy. During interwar periods, CEEc were the prime examples for examining what kind of policies and strategies had the small states chosen over the international relations in which the smalls had to struggle to survive between neighbouring the powers and between the hostiles. Furthermore, for the measures which the smalls had chosen had no effect when the great power threatened military to them, the main purpose of this paper is to examine what was the best choose to depend their survival. For this purpose, in this paper, several strategies which the smalls can choose and the counterfactuals, that is "if the smalls chosen another strategies, they could...", will be examined.

• Fire Science and Engineering
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• v.27 no.4
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• pp.13-20
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• 2013

Buildings in Korea have been getting higher recently and been being changed environmentally since the Korean fire standard was released in 1968. It should be established to make a appropriate correspondence of fire fighting against the those environmental changes. Most of all, fire water capacity which is basis of fire fighting service is a very significant factor. In this paper, the Korean fire water capacity and fire water duration were compared with China, Japan and the United states. Furthermore, fire water capacity, fire water duration, flow rate were compared by hazard classification, occupant use, number of floor and area with water based fire suppression system. This study has been surveyed to show what are difference, similarity, advantage and disadvantage on fire water capacity in the Korean standard comparing with neighboring countries like China, Japan as well as the United states. This study could be found what level the Korean fire water capacity is. So it suggests about more developed standard on fire water capacity with the result of analysis and comparison.

• The Journal of the Acoustical Society of Korea
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• v.22 no.1E
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• pp.3-10
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• 2003

This paper describes two kinds of neural networks for stereoscopic vision, which have been applied to an identification of human speech. In speech recognition based on the stereoscopic vision neural networks (SVNN), the similarities are first obtained by comparing input vocal signals with standard models. They are then given to a dynamic process in which both competitive and cooperative processes are conducted among neighboring similarities. Through the dynamic processes, only one winner neuron is finally detected. In a comparative study, with, the average phoneme recognition accuracy on the two-layered SVNN was 7.7% higher than the Hidden Markov Model (HMM) recognizer with the structure of a single mixture and three states, and the three-layered was 6.6% higher. Therefore, it was noticed that SVNN outperformed the existing HMM recognizer in phoneme recognition.

• Journal of Welding and Joining
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• v.4 no.1
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• pp.32-39
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• 1986

This paper was studied about the influence of oxidized films on workability in cold pressure welding. In preceding studies, the principal foci of the studies about pressure welding were considered several factors(surface manufacturing methods, surface roughness, pressure welding speed and surface temperature). But the influence to the growth of oxidation have hardly known well. So the purpose of this paper consists in solving the question above and proposing the optimal states of the pressure welding. Therefore the results obtained is as the following; When the oxidation time is within about 2 minutes, the bonding strength is very good after surface manufacturing of the neighboring to be bonded. The more surfaces are fine the more bonding strength is excellent. Above all, the optimal condition of cold pressure welding is the state that the characteristic value is 38% with smooth surface and without oxidation.