• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.335-341
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• 2017

This paper proposes an image-processing algorithm for inspecting double-cut defects in the motor shaft manufacturing process. The algorithm consists of extracting the outline using the brightness of the image, obtaining a binarized boundary graph using the extracted outline, and determining the defects from the graph. Defects in which two cut surfaces are separated are considered type 1 defects, and those in which two cut surfaces are connected are defined as type 2 defects. In an actual manufacturing process, 112 good samples and 44 defective samples (34 type 1 defects and 10 type 2 defects) were collected and used to verify the algorithm. The samples were judged with 100% accuracy for both type 1 and type 2 defects. The algorithm will be used in the field after securing reliability for various samples.

• Proceedings of the IEEK Conference
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• 2000.11a
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• pp.225-228
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• 2000

In this paper, we present the design of AAL2/AAL5 Type conversion Unit using among BSC, BTS, Core-Network in IMT-2000 system. We first briefly introduce the B-ISDN ATM Adaptation layer specification of Type 2 AAL and Type 5 AAL, and describe conversion flow and each module. And then this paper has designed AAL2/AAL5 Type Conversion Unit and simulated it.

• Bulletin of the Korean Mathematical Society
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• v.49 no.1
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• pp.135-143
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• 2012

We present two kinds of construction methods for self-dual codes over $\mathbb{F}_2+u\mathbb{F}_2$. Specially, the second construction (respectively, the first one) preserves the types of codes, that is, the constructed codes from Type II (respectively, Type IV) is also Type II (respectively, Type IV). Every Type II (respectively, Type IV) code over $\mathbb{F}_2+u\mathbb{F}_2$ of free rank larger than three (respectively, one) can be obtained via the second construction (respectively, the first one). Using these constructions, we update the information on self-dual codes over $\mathbb{F}_2+u\mathbb{F}_2$ of length 9 and 10, in terms of the highest minimum (Hamming, Lee, or Euclidean) weight and the number of inequivalent codes with the highest minimum weight.

• Journal of Korean Academy of Nursing
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• v.23 no.4
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• pp.544-554
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• 1993

The study was designed to identify the attitude of nursing students to clinical education through Q-methodology. A C sample was developed through a review of the literature and interviews. Twenty - seven statements made up the finalized Q- sample. This was out of an initial 143 statements developed through consultation with eight professors. The P sample consisted of 25 nursing students in S Health Junior College.0 statements were written on seperate cards and were given to the 25 subjects to sort according to degree of agreement or disagreement. The Q-sorts by each subject were coded and analyzed with QUANL PC Program. The analysis discovered three major attitudes, namely “amicable adaptation” 〈type 1), “Nightingale social service” (type 2), and “realistic occupation pursuit” (type 3). The correlation was .465 between type 1 and type 2, .293 between type 1 and type 3, and .273 between type 2 and type 3. The characteristics of each type were as follows ; Type 1 (amicable adaptation) They satisfied in interpersonal relationships in the clinical setting. They would not dream of becoming Nightingale, but thought of nursing care affirmatively and performed their works faithfully and adapted themselves to the new circumstances easily, Fourteen subjects were classified as type 1. Type 2 (Nightingale: social service) They often dreamed as a child that they would be Nightingale with a white uniform and think that nursing is a gift from heaven. They have an aptitude for nursing care by nature and selected nursing science them-selves. They give care to the sick with pleasure. Seven subjects were classified as type 2. Type 3 (realistic occupation pursuit) They were not satisfied with their nursing practice. First of all they want a stable job, therefore they selected nursing science. They had conflicts in clinical practice, but were responsible for nursing and studied hard. Four subjects were classified as type 3. Through the results of this study, the attitude of nursing students to clinical education could be classified into three types. Therefore it is suggested that clinical education would be more valuable, if it was planned according to an understanding of the attitudes of nursing students to clinical education.

• Journal of Oriental Neuropsychiatry
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• v.28 no.4
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• pp.373-379
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• 2017

Objectives: The purpose of this research is to study the psychological characteristics of Korean medical students with a focus on the Myers-Briggs Type Indicator (MBTI) and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2). Methods: The survey was conducted on 101 Korean medical students to investigate their psychological characteristics with a focus on Myers-Briggs Type Indicator and the Minnesota Multiphasic Personality Inventory-2. Results: Among the 16 MBTI personality types, ISTJ was the most common type with the prevalence of 24.8%. According to gender-based classification, there were more men in the J-type category and more women in the P-type category. In the MMPI-2 scales, males showed high scores in Pd, AGGR, DISC, MAC-R, and GM, and females showed high scores in Mf and GF. Conclusions: The personality test for male and female Korean medical students revealed few differences on some scales of the Myers-Briggs Type Indicator and the Minnesota Multiphasic Personality Inventory-2.

• Journal of Magnetics
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• v.1 no.1
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• pp.19-23
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• 1996

In the present study, the $Sm_2Fe_{17}N_x$-type interstitial materials have been prepared by reaction between Nb-free or Nb-containing $Sm_2Fe_{17}$-type alloy and $N_2$ gas. Nitrogenation behaviour of the $Sm_2Fe_{17}N_x$-type material and disproportionation characteristics of the nitrogenated materials have been studied by means of differential thermal analysis (DTA) and thermopiezic analysis (TPA). Magnetic properties of the produced $Sm_2Fe_{17}N_x$-type interstitial materials were characterised in vibrating sample magnetometer (VSM) or thermomagnetic analyser (TMA). Epoxy-bonded or Zn-bonded $Sm_2Fe_{17}N_x$-type magnets were prepared, and their magnetic properties were investigated. It has been found that nitrogenation kinetics of the Sm2Fe17Nx-type alloy is improved significantly by the Nb-substitution for Fe in the alloy. The Nb-substitution is also found to enhance thermal stability of the $Sm_2Fe_{17}N_x$-type interstitial material. Hard magnetic properties of the interstitial materials produced from Nb-free orNb-containing alloy is high enough (intrinsic coercivity : over 7 kOe) for application as bonded permanent magnets. The good hard magnetic properties of the interstitial material are maintained in the epoxy-bonded magnet. Intrinsic coercivity of the Zn-bonded magnets is improved significantly as post-bonding annealing time increases.

• Journal of Advanced Marine Engineering and Technology
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• v.33 no.6
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• pp.827-834
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• 2009

The cooling heat transfer coefficient of $CO_2$ in a brazing type small diameter tube was investigated experimentally. The main components of the refrigerant loop are a receiver, a $CO_2$ compressor, a mass flow meter, an evaporator and a brazing type small diameter tube as a test section. The mass flux of $CO_2$ is $400{\sim}1600$ [kg/$m^2s$], the mass flowrate of coolant were varied from 0.15 to 0.3 [kg/s], and the cooling pressure of gas cooler were from 8 to 10 [MPa]. The cooling heat transfer coefficients of the brazing type small diameter copper tube is about $4{\sim}11.7%$ higher than that of the conventional type small diameter copper tube. In comparison with test results and existing correlations, correlations failed to predict the cooling heat transfer coefficient of $CO_2$ in a brazing type small diameter copper tube. therefore, it is necessary to develope reliable and accurate predictions determining the cooling heat transfer coefficient of $CO_2$ in a brazing type small diameter copper tube.

• Journal of applied mathematics & informatics
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• v.41 no.3
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• pp.687-696
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• 2023

In this paper, we introduce the 2-variable mixed-type Hermite polynomials and organize some new symmetric identities for these polynomials. We find induced differential equations to give explicit identities of these polynomials from the generating functions of 2-variable mixed-type Hermite polynomials.

• Archives of Pharmacal Research
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• v.23 no.6
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• pp.626-632
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• 2000

Brazilin, an active principle of Caesalprenia sappan, was examined for its immunopotentiating effects in multiple low dose streptozotocin (MLD-STZ) induced type diabetic mice. Brazilin was intraperitoneally administered for 5 consecutive days to MLD-STZ induced type 1 diabetic mice. Delayed type hypersensitivity, Con A-induced proliferation of splenocytes and mixed lymphocyte reaction, which had been decreased in diabetic mice, were significantly recovered by the administration of brazilin. Brazilin increased IL-2 production without affecting suppressor cell activity. Con A-induced and IL-2-induced expression of high affinity IL-2 receptors were also enhanced by brazilin. These results indicate that brazilin augments cellular immune responses, which are suppressed in the MLD-STZ induced type I diabetic mice, by increasing IL-2 production and responsiveness of immune cells to IL-2.

• Journal of Environmental Health Sciences
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• v.29 no.3
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• pp.50-58
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• 2003

Removal of heavy metal ions (Cd$^{2+}$, Cr$^{3+}$, Cu$^{2+}$, Pb$^{2+}$) by several chitosans was studied and the molecular weight of chitosan was investigated in order to examine the effect of autoclaving. Chitosan were divided into 3 groups (A type, controlled chitosan; B type, autoclaved for 15 min; C type, autoclaved for 60 min). The heavy metal removal capacity and rate of B type chitosan were higher than those of A type and B type chitosan. The molecular weight of chitosan was decreased by the increase of autoclaving time. Therefore, the heavy metal capacity was not well correlated to the molecular weight. Freundlich and Langmuir isotherm was determined from the experimental results of equilibrium adsorption for individual heavy metal ions on chitosan. Langmuir isotherm was well fitted to this experimental data. The heavy metal removal capacity of B type chitosan was in the order of Pb$^{2+}$ > Cu$^{2+}$ > Cd$^{2+}$> Cr$^{3+}$.3+/.$.3+/.