• 대한가정학회지
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• 제40권7호
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• pp.53-68
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• 2002

The purpose of this study is to clarify the influence of positive interactions between the low-income female householders and children on the mothers'psychological well-being and quality of life. The major findings are as following: First, there were high level of life satisfaction and low level of depression among the low-income female householders who perceived high level of children's emotional support. The difference from the existence of the low-income female householder\`s husband was not found in the life satisfaction and depression. After controling for the low-income female householder's health, the differences were maintained. Second, the low-income female householders who communicated with their children open-heartedly felt higher level of life satisfaction and lower level of depression than those who had less communication with their children. The difference from the existence of the low-income female householder's husband was not found in the life satisfaction and depression. After controlling for the low-income female householder\`s educational level and health, the differences were maintained. finally, the low-income female householders felt higher level of life satisfaction and lower level of depression when they listened to their children closely, and were satisfied with mother-child communication.

• 음성과학
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• 제9권2호
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• pp.49-58
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• 2002

This study is to classify intonation types of sentence terminal in accordance with sentence form in Korean dialects. Intonation types of sentence terminal in declarative, interrogative (yes-no and wh-sentence), imperative, suggestive of Gyeongnam dialect are low fall, high fall, high fall, low fall, so are not distinctive by intonation, but distinctive by final ending morphemes. But those of Jungbu dialect are low fall, rise-fall and full rise, high level, low rise-fall. Those of Jeonnam dialect are low level, rise-fall and full rise, high level, high level. So those of Jungbu dialect are similar to Jeonnam dialect.

• Journal of Information Display
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• 제11권1호
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• pp.21-23
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• 2010

A new level shifter using low-temperature polycrystalline silicon (poly-Si) thin-film transistors (TFTs) for low-power applications is proposed. The proposed level shifter uses a capacitive-coupling effect and can reduce the power consumption owing to its no-short-circuit current. Its power saving over the conventional level shifter is 72% for a 3.3 V input and a 10 V output.

• 한방안이비인후피부과학회지
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• 제32권4호
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• pp.90-100
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• 2019

Objectives : The purpose of this study is to determine the safety and efficacy of low level laser. Methods : We searched 11 electronic databases(Pubmed, CAJ, EMBASE, Medline, Cochrane Library, KMBASE, KISS, KISTI, NDSL, RISS, Oasis) up to March 2019. We included randomized controlled trials(RCTs) using low level laser for alopecia. The methodological quality of each RCT was assessed by the Cochrane risk of bias tool. Results : 8 RCT studies were eligible in our review. The meta-analysis of 2 studies showed favorable results for the use of low level laser with minoxidil 5% than minoxidil 5% and 6 studies showed favorable results for the use of low level laser than placebo light. The results of meta-analysis showed that low-level laser has an efficacy on alopecia. There were no serious side effects or adverse effects. High risk of bias were observed in all studies. Conclusion : Now limited evidence is available to support low level laser for alopecia and further well-designed RCTs should be encouraged.

• 한국항공운항학회지
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• 제31권3호
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• pp.59-70
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• 2023

In order to predict low-level wind shear at Incheon International Airport (RKSI), a Low-Level Wind Shear prediction system (KMAP-LLWS) along the runway take-off and landing route at RKSI was established using Korea Meteorological Administration Post-Processing (KMAP). For the performance evaluation, the case of low-level wind shear cases calculated from Aircraft Meteorological Data Relay (AMDAR) from July 2021 to June 2022 was used. As a result of verification using the performance evaluation index, POD, FAR, CSI, and TSS were 0.5, 0.85, 0.13, and 0.34, respectively, and the prediction performance was improved by POD, CSI, and TSS compared to the Low-Level Wind Shear prediction system (LDPS-LLWS) calculated using the Korea Meteorological Administration's Local Data Assimilation and Prediction System (LDAPS). This means that the use of high-resolution numerical models improves the predictability of wind changes. In addition, to improve the high FAR of KMAP-LLWS, the threshold for low-level wind shear strength was adjusted. As a result, the most effective low-level wind shear threshold at 8.5 knot/100 ft was derived. This study suggests that it is possible to predict and respond to low-level wind shear at RKSI. In addition, it will be possible to predict low-level wind shear at other airports without wind shear observation equipment by applying the KMAP-LLWS.

• 전자공학회논문지T
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• 제35T권1호
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• pp.29-32
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• 1998

실리콘 산화막에서 저레벨 누설전류를 조사하였다. 저레벨 누설전류는 전이요소와 직류요소로 구성되어 있다. 전이요소는 스트레스에 의해 두 계면트랩 가까이 발생된 트랩의 충방전에 의한 터널링으로 나타났으며 직류요소는 산화막을 통한 트랩 어시스트 터널링으로 나타났다 그리고 저레벨 누설전류는 산화막에서 발생된 트랩의 수에 비례하였다. 저레벨 누설전류는 트랩의 충방전 누설전류이며 비휘발성 소자의 데이터 유지능력에 영향을 주었다.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.1054-1057
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• 1993

A direct method of fuzzy inference and a fuzzy algorithm with learning function are applied to the steam generator level control of nuclear power plant. The fuzzy controller by use of direct inference can control the steam generator in the entire range of power level. There is a little long response time of fuzzy direct inference controller at low power level. The rule base of fuzzy controller with learning function is divided into two parts. One part of the rule base is provided to level control of steam generator at low power level (0%∼30% of full power). Response time of steam generator level control at low power level with this rule base is shown generator level control at low power level with this rule base is shown to be shorter than that of fuzzy controller with direct inference.

• 대한수학교육학회지:학교수학
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• 제16권3호
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• pp.445-469
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• 2014

이 연구는 현직 중등 수학교사가 학생들이 교과서 수학 과제를 해결하는 데 요구되는 인지적 노력수준을 어떻게 이해하고, 그에 따라 과제들을 선별할 수 있는지를 살펴보는데 초점을 두고 있다. 또한 교사가 수학교과서의 Low Level 과제를 학생들의 수학적 사고력을 향상시키도록 High Level 과제로 변형할 수 있는지를 알아보고자 하였다. 수학 과제의 선별 및 변형에 관한 설문지를 제작하여 서울 및 경기 지역의 중 고등학교 수학 교사들에게 설문검사를 실시하였고 이를 분석하였다. 분석 결과는 다음과 같다. 첫째, 2007 개정 교육과정 목표 및 수업 목표 등을 성취하기 위해 수업에서 반드시 다루어야 할 과제로 High Level 과제를 선택한 교사의 비율은 59%였고, PNC과제를 High Level 과제로 보는 교사의 비율은 32%였다. 둘째, 교과서 Low Level 수학 과제를 높은 인지적 노력수준을 요구하는 과제로의 변형에 대하여, 아무런 변형도 하지 못한 교사의 비율은 56%였고 High Level 과제로 변형한 교사는 50명 중 4명뿐이었다. 이는 예비교사 뿐만아니라 현직교사의 경우도 Low Level 과제를 High Level 과제로 변형하는데 어려움을 느끼고 있음을 보여준다.

• 대한물리의학회지
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• 제9권4호
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• pp.433-438
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• 2014

PURPOSE: The purpose of our study was to compare a 975-nm, 500-mW GaAlAs low-level laser therapy versus placebo low-level laser therapy with regard to the immediate changes on the myofascial trigger point of the dominant upper trapezius muscle in subjects with rounded shoulder posture. METHODS: Thirty-two male college students with rounded shoulder posture and shoulder pain consented to participate in the experiment. The subjects were randomly assigned to a 2-minute procedure with either an active GaAlAs low-level laser or a placebo GaAlAs low-level laser. The pressure-pain threshold and visual analog scale on tenderness at 3 kg were measured with an algometer before and after the laser treatments. RESULTS: The active GaAlAs low-level laser group showed significant changes in pressure-pain threshold and visual analog scale on tenderness at 3 kg (p<0.05). The placebo GaAlAs low-level laser group showed no significant changes in either pressure-pain threshold or visual analog scale on tenderness at 3 kg (p>0.05). CONCLUSION: An immediate effect was observed in pressure-pain threshold and visual analog scale on tenderness at 3 kg following a 2-minute application ($857.14J/cm^2$) of a 975-nm, 500-mW GaAlAs low-level laser to the myofascial trigger point of the dominant upper trapezius muscle in patients with rounded shoulder posture.

• The Journal of Korean Physical Therapy
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• 제13권3호
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• pp.677-683
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• 2001

The object of this study is in the comparison of level of depression between patients with chronic low back pain & normal adult, of the relation between reduction of pain & level of depression and in the examination of the influence of traditional physical therapy against the reduction of pain & level of depression of the patients with chronic low back pain for the new recognition of psychological factors to the physical therapists as well as patients. This study was targeted for 40 patients with chronic low back pain who were diagnosed as lumbar sprain & herniated intervertebral disk and compared & analyzed how traditional physical therapy has an influence to their reduction of pain and level of depression by questioning with visual an analog scale of Beck's depression inventory & pain inventory to them. The results are as follows. 1. Traditional physical therapy has an effect in the reduction of pain of the patients with chronic low back pain. 2. Although traditional physical therapy relieved a little the level of depression of patients with chronic low back pain. there was no evident effect statistically. 3. In the relation between the reduction of pain and level of depression, level of depression also showed somewhat relief according to the reduction of pain and appeared that they have some relationship. However, it's degree was not big. 4. In the comparison of the level of depression between the normal adult and the patient with chronic low back pain, the level of depression of the patient with low back pain are high rather than that of normal adult.