• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.143-144
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• 2023

This study aimed to evaluate the feasibility of estimating the setting time and compressive strength in Ternary Blended Concrete(TBC) using Settimeter, Strength meter, and Hybrid meter. It was determined that the hardness values at the initial setting time and final setting time of Settimeter, Hybrid meter, and at the 5 MPa of Strength meter were not affected by the mixing ratio of TBC. However, future studies need to consider the errors caused by the instability of the measurement surface during condensation and the state of the measurement surface after hardening.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.187-188
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• 2023

This study aimed to evaluate a feasibility of estimating setting time and compressive strength of curing conditions using a Hybrid meter. As a result, It was determined that the measured hardness value at the initial set, final set and at 5MPa of the Hybrid meter were not affected by curing conditions. And the Hybrid meter(A) is confirmed to have a higher correlation, so it is judged to be more suitable for pratical use.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1995년도 가을 학술발표회 논문집
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• pp.173-177
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• 1995

Thermal cracks ard occured when thermal stress due to the hydration of cement exceeds the tensile strength of concrete. Since cracking causes poor durability of concrete, the effect of thermal cracking should be included for the desing and construction of massive concrete structures. In this study, an experiments are performed for the investigation of time dependent temperature and thermal stress of massive concrete structure at early ages. In order to measure temperatures and thermal stresses, concrete stress meter, embedded strain meter, non-stress meter, and thermocouples are used. Based on the analyses of measured thermal stress data, measured values by concrete stress meter are more reliable than those by embedded strain meter and non-stress meter, And measured values by concrete stress meter are compared with the calculated values by FEM program developed by DICT (DWTS2D). Calculated values by DWTS2D show good agreement with measured values.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 추계학술대회 논문집
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• pp.573-576
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• 1995

The realization by many industrial countries that manufacturing is a critical ingredient for attaining economic strength and stability has led to the development of automated systems which were proviously considered as gimmicks. The adaptive skill of the human operator is now being simulated and reproduced by computer that have become more powerful and less expensive. The work presented in this paper forms an investigation of the effects of dynamic viscosity and load of hydraulic oil an pressures with three different circuit(meter-in, meter-out and bleed off). The experimental results showed that pressures increase with an increase in dynamic viscosity and load in bleed off circuit, but there is no variation of pressure in meter-In meter-out circuit.

• 정보보호학회논문지
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• 제26권3호
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• pp.757-767
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• 2016

패스워드 인증은 가장 대표적인 사용자 인증 기법이며 그 중에서 특히 문자 기반 패스워드가 가장 많이 사용되고 있다. 그러나 사용자들이 선택하는 패스워드가 갖는 취약성으로 인하여 사용자로 하여금 강한 패스워드 생성을 유도하기 위해 많은 웹사이트에서는 패스워드 강도를 측정하는 패스워드 미터를 제공하고 있다. 하지만 여기에는 패스워드 미터결과가 일관되지 않고, 정확하지 않은 강도로 피드백하는 문제가 있다. 이에 본 논문에서는 패스워드 미터의 문제점에 대해 알아보며 패스워드 미터의 개선 방향을 제시하고자 한다.

• Physical Therapy Rehabilitation Science
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• 제11권3호
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• pp.370-375
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• 2022

Objective: The purpose of this study was to compare the hip joint muscle strength of patients with chronic back pain with lumbar instability and normal subjects. Design: A case control study. Methods: Five types of lumbar instability test were conducted on forty young women with chronic low back pain for more than six months, and those who had 3 or more positive tests were selected as subjects. To select chronic back pain patients with lumbar instability group, aberrant movement patterns during lumbar flexion test (FMT), prone instability test (PIT), posterior-anterior mobility test (PAT), passive lumbar extension test (PLE), and pressure bio-feedback (PBF) were applied. In addition, a digital muscle strength meter was used to measure the hip flexor, extensor, adductor, and abductor muscles of chronic low back pain patients with lumbar instability group (n=20) and normal subject group (n=20). Results: As a result of comparing the hip joint muscle strength between the chronic back pain patient group with lumbar instability and the normal group, there were significant differences in the hip extensor, abductor, and adductor muscles (p<0.05). Conclusions: Patients of chronic back pain with lumbar instability were found to have weak hip joint muscle strength. Therefore, this study suggest that include hip joint strength exercise for functional recovery of chronic back pain patients.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2002년도 11월 학술대회지
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• pp.64-69
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• 2002

This study concerns the constraints of English Poetic Meter. In English poems, the metrical pattern doesn't always match the linguistic stress on the lines. These mismatches are found differently among the poets. For the lexical stress mismatched with the weak metrical position, $*W{\Rightarrow}{\;}Strength$ is established by the concept of the strong syllable. The peaks of monosyllabic words mismatched with the weak metrical position are divided according to which side of the boundary of a phonological domain they are adjacent to. Adjacency Constraint I is suggested for the mismatched peak which is adjacent to the left boundary of a phonological domain; *Peak] and Adjacency ConstraintII for the mismatched peak which are adjacent to the right boundary of a phonological domain. These constraints are various according to the poets(Pope, Milton and Shakespeare) : *[Peak [-stress], $W{\Rightarrow}{\;}*Strength$ and *Peak] in Pope; *[+stress][Peak [-stress] and *Peak] in Milton ; *[+stress][Peak [-stress], $W{\;}{\Rightarrow}{\;}*Strength$ and ACII in Shakespeare.

• 한국영어학회지:영어학
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• 제2권4호
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• pp.555-574
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• 2002

This study concerns the constraints of English Poetic Meter. In English poems, the metrical pattern doesn't always match the linguistic stress on the lines. These mismatches are found differently among the poets. For the lexical stress mismatched with the weak metrical position, W⇒ Strength is established by the concept of the strong syllable. The peaks of monosyllabic words mismatched with the weak metrical position are divided according to which side of the boundary of a phonological domain they are adjacent to. Adjacency Constraint I is suggested for the mismatched peak which is adjacent to the left boundary of a phonological domain; /sup */Peak] and Adjacency ConstraintⅡ for the mismatched peak which is adjacent to the right boundary of a phonological domain. These constraints are various according to the poets (Pope, Milton and Shakespeare) : /sup */[Peak [-stress], /sup */W⇒ Strength and /sup */Peak] in Pope; /sup */[+stress][Peak[-stress] and /sup */Peak] in Milton; /sup */[ +stress][Peak[-stress], /sup */W⇒Strength and Adjacency ConstraintⅡ in Shakespeare.

• 센서학회지
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• 제9권2호
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• pp.120-126
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• 2000

본 논문은 평판형 센서, 아날로그 증폭기, 이득 조성 가능한 A/D 변환기 및 표시장치로 구성되는 휴대용 전장 측정기에 대하여 기술하였다. 극저주파 대역의 시변전장 검출을 위한 센서의 원리를 설명하고, 원통형 가드전극계와 평행평판 전극계의 교정장치를 제안하였다. 교정실험 결과로부터 전장측정기의 주파수 대역과 감도는 각각 $17[Hz]{\sim}7[kHz]$, 4.45[mV/V/m]이었다. 또한 측정 가능한 최대 전장의 세기는 10[kV/m]이며, 측정 결과는 액정화면에 숫자로 표시된다. 본 전장측정기는 전력선, 컴퓨터 및 헤어드라이기나 히터와 같은 가전기기 등에서 방사되는 전장의 세기 측정에 광범위하게 적용될 것이다.

• 한국학교보건학회지
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• 제5권1호
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• pp.111-119
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• 1992

The study examined the difference of the physique, the physical strength, and the physical constitution between meal and non-meal service schools at the countryside, and concluded as follows: 1) The effects on the physical development Meal service school student's height was 0.41~2.38cm taller, weight 0.21~1.58kg heavier, and the chests 0.15~2.55cm bigger than the non-meal service school students. Therefore, the effects of the school meal service on the student's physique development proved positive. 2) The effects on the physical strength Today, the student's physical growth is reinforced by consuming high calorie food, while their physical exercise is decreased. As a result, obesity becomes another problem. In this respect, physical strength is a significant factor in judging the physical condition of the students. This study compared the meal service schools with the non-meal service schools by suing six items of the physical strength test those schools. In comparison, the meal service school students were better than the others in most items except in the eleven year old girl's 100 meter running and the ball throwing, and the ten year old boy's 600meter running. It means that school meal service affects the physical growth in a positive manner. 3) The effects on the physical constitution The students in their growing period should have their meals not only balanced, but regularly since this helps to maintain their health. Insufficient nutrition may disturb the balanced physical growth of cause a weak or powerless physical constitution. As shown at the table 6, meal service school students who had a balanced meal have 0.01% lower incidence of disease. and 3.11~7.32% less myophia than the other. The average 0.39 to 0.63 cavity of the meal service school students also show that their constitutions are better than the non-meal service ones. In conclusion, the school meal service program gives every student a regular nutritious meal which results in a balanced physical growth. Erentually, the healthier students could be the healthier social menbers which promise a brighter society in the future.