• Journal of the Society of Naval Architects of Korea
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• v.51 no.4
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• pp.283-290
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• 2014

Environmental changes, especially global climate change, are creating new routes to reduce a shipping service distance in Arctic area. The Arctic routes are shorter than 60% of existing ways Panama or Suez canal). For this reason, ship owners prefer to navigate in Arctic area and a transportation of goods though the Arctic area is increasing. But the low temperature in Arctic condition changes the material properties. Especially, the material will be brittle and strength will increase. And an ultimate strength analysis of ship stiffened panels is changed depending on temperatures. In present study, the ultimate strength analysis of stiffened panels in double hull oil tankers is performed under various low temperatures with the material properties obtained by tensile coupon test. The analytical method as named ALPS/ULSAP was used for analysis method and 6 kinds of temperature (20, 0, -20, -40, -60 and $-80^{\circ}C$) were considered to investigate the effect of Arctic conditions.

• Phonetics and Speech Sciences
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• v.14 no.4
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• pp.67-75
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• 2022

This study compared voice range profiles (VRPs) of modal and falsetto register in 53 dysphonic and 53 non-dysphonic adult women with gliding vowel /a/'. The results shows that maximum fundamental frequency (F0_MAX), maximum intensity (I_MAX), F0 range (F0_RANGE), and intensity range (I_RANGE) are lower in the dysphonic group than in the non-dysphonic group. F0_MAX and F0_RANGE are significantly higher in falsetto register than modal register in both groups. I_MAX and I_RANGE are significantly higher in falsetto register in the non-dysphonic group, but those are not different between two registers in the dysphonic group. There was no statistically significant difference in minimum F0 (F0_MIN) and minimum intensity (I_MIN) between the two groups. Modal-falsetto register transition occurred at 378.86 Hz (F4#) in the dysphonic group and 557.79 Hz (C5#) in the non-dysphonic group, which was significantly lower in the dysphonic group. It can be seen that both modal and falsetto registers in dysphonic adult women are reduced compared to non-dysphoinc adult women, indicating that the vocal folds of dysphonic adult women are not easy to vibrate in high pitches. The results of this study would be the basic data for understanding the acoustic features of voice disorders.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.11a
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• pp.399-400
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• 2008

• Proceedings of the KSR Conference
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• 2003.10a
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• pp.27-43
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• 2003

Reliability Lifecycle from Concept to In-Service Operation and Maintenance. Reliability management must consider - SAFETY - SERVICE REQUIREMENTS. Reliability targets/objectives can be specified at feasibility stage. Reliability analysis to support design process. Reliability assessment to support reliability growth or contractual demonstration. Maintenance optimisation to improve reliability during lifetime of operation. Lessons learnt incorporated into next generation of trains.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10b
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• pp.410-412
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• 1998

그래프 채색 기법(Graph Coloring)에 기반한 레지스터 할당기들은 간섭 그래프의 서로 다른 노드(node)에 같은 레지스터를 할당함으로써 복사 명령어를 없앤다. 본 논문은 이러한 기법 가운데 보수적 융합(Conservative Coalescing)이 레지스터 쌍을 융합하는데 단점이 있음을 지적하고 이러한 문제가 낙관적 레지스터 융합 기법(Optmistic Register Coalescing)에 의해 해결될 수 있음을 보인다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.251-252
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• 2010

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.15 no.1
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• pp.31-36
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• 2004

Background and Objectives : It has been shown that the epilaryngeal tube in the human airway is responsible for vocal ring, or the singer's formant. In previous study, authors showed that in trained tenors, besides the conventional singer's formant in the region of ,5500Hz, another energy peak was observed in the region of 8,000Hz. This peak was interpreted as the second resonance of the epilarynx tube. Singers in other voice categories who produce vocal ring are assumed to have the same peak, but no measurements have as yet been made. Materials and Methods : Fifteen tenors, fourteen baritones, seven sopranos and five mezzo sopranos attending the music college, department of vocal music who could reliably produce the head and chest registers were chosen for this study. Each subject was asked to produce an/ah/sound for at least three seconds for the head register sound(tenors ; G4, barions ; E4 sopranos ; F5 and mezzosopranos ; C5) and for the chest register sound (tenors ; C3, baritones ; D3, sopranos ; D4 and Mezzosoprano ; A3). The sound data was analyzed using the Fast Fourier Transform (FFT)-based power spectrum, Long term average(LTA) power spectrum using the FFT algorithm of the Computerized Speech Lab (CSL, Kay elemetrics, Model 4300B, USA). Statistical analysis was performed using the Mann-Whitney test of the Statistical Package for Social sciences(SPSS). Results : For head register sounds, a significant increase was seen in the 2,200-3,400Hz region(p<0.05) and the Similar to the head register sounds, there was a significant increase in energy in the four trained singer group compared with the untrained group in the 2,200-3,100Hz region(p<0.05), the 7,800-8,400Hz region(p<0.05) for the chest register sounds. Conclusions : When good vocal production was made for the head and chest registers, an energy peak was observed near 2,500Hz, a frequency already known as the "singer's formant', in all subjects in the study group. Another region of increased energy was observed around 8,000Hz that had not been noticed previously. The authors believe this region to be the second singer's formant.

• Journal of Korean Classical Literature and Education
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• no.34
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• pp.5-39
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• 2017

The purpose of this study is to establish genre knowledge that can be used to study classical Korean novels. Genre knowledge is important because it characterizes individual works based on their knowledge, as well as organically links them with the social context. In this study, I suggest that long classical Korean novels with similar contents can be analyzed using genre knowledge and analyze the "register" of the representative work Sohyeonsungrok as an example of a classical Korean novel. In the Sydney school, register connects genre and language. Register comprises field, tenor, and mode in the social context, and ideological meaning, interpersonal meaning, and textual meaning through language. These three meanings help us to understand how experiences are transformed into language, the relationship between participants, and the way a text is organized. Based on these frameworks, this study reveals that the linguistic features of Sohyeonsungrok is "an attitude that accepts a wide range of human emotions and desires and steadily waits for it to be included in norms." Classic Korean novels such as Sohyeonsungrok depict characters who are not wicked even though they cannot fully comply with social norms, and thereby create sympathy for family members living through Confucian ideology. This genre knowledge is useful for understanding the ideological implications of classical Korean novels.

• Journal of IKEEE
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• v.3 no.1 s.4
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• pp.150-160
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• 1999

This paper presents a new register transfer level synthesis method to overcome the disadvantages of the previous register transfer level synthesis systems. The previous register transfer level synthesis systems first translate from a hardware description language to sequential circuits inadequately. Secondly, the systems separate registers and combinational circuits and then optimize only combinational circuits. This paper describes their disadvantages and then proposes a new method to overcome their shortcomings. This paper also shows the effectiveness of the proposed method by using the proposed method at designing the controller of a surveillance system and the 8-bit signed multiplier.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.2
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• pp.161-169
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• 2011

This paper presents a new register transfer level synthesis methodology for efficient SOC system design. The previous register transfer level synthesis systems first translate from a hardware description language to sequential circuits inadequately. Secondly, the systems separate registers and combinational circuits and then optimize only combinational circuits. This paper describes their disadvantages and then proposes a new method to overcome their shortcomings. This paper also shows the effectiveness of the proposed method by using the proposed method at designing the controller of a surveillance system.