• 대한가정학회지
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• 제17권1호
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• pp.45-55
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• 1979

The purpose of this study is to investigate to what extent and how the infant's Object Attachment occurs. For this purpose, 28 mothers with their infants showing or having shown this phenomenon were interviewed. They were selected by the whole scale smpling method from 310 household -wives living at a delux Apt. in Seoul. The results are summarized as follows : 1. About 27% of the infants aged between 6 months and 6 years turned out to show this phenomenon. 2. Qulits, bed clothes, pillows and blankets, which infants have been closely contacted since their babyhood, were the major source of attachment objects. In general, these objects were proved to have soft, wasm, smooth, and glassy tactile sensation. 3.This phenomenon, in average, appeared since 13 months after birth, About 50% of the whole began to show this phenomenon between 9 and 14 month after birth. 4. Half of the infants didn't show a change of attachment strength, but as for the other half, the attachment strength increased after one year of age, and decreased after three years of age, as the social period commenced. 5. Infants needed attachment objects especially when they were driven by sleep, sense of emptiness, and monotonous or boring feeling. 6. There were little difference between Object Attachment behavior and motherinfant attachment behavior except "babbling", "using her as a base for exploration". Those behaviors did not appear in Object Attachment. 7. mothers said that their children's attachment objects played the role of substitute mother, pacificater, warmer, friend , etc. And they attributed this phenomenon's appearance to lack their physical contact with, ocnstant and warm care toward, their children or bottle feeding.

• 한국전자파학회:학술대회논문집
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• 한국전자파학회 2005년도 종합학술발표회 논문집 Vol.15 No.1
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• pp.121-124
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• 2005

The High Rate Wireless Personal Area Networks (WPAN) is mainly targeted to consumer electronics and portable communication devices which need high rates and QoS. To achieve these goals, the WPAN provides data rates up to 1Gbps and adopts a Time Division Multiple Access (TDMA) MAC protocol. Since IEEE 802.15.3 MAC is based on TDMA scheme, it has good performance in dealing with real traffics. But it does not give better results for dynamic traffic. For dynamic traffic, IEEE 802.15.3 MAC needs a kind of request and response policy that brings about the degradation of performance in order to adapt to network changes. To overcome this problem and enhance the data throughput, this paper proposes a superframe structure which uses the Enhanced Contention Access Period (ECAP) to transmit data during sleep-CTA in PM mode.

• 한국IT서비스학회지
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• 제10권3호
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• pp.237-250
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• 2011

Recently, Wireless Sensor Networks (WSN) require energy performance and guaranteed delivery delay time, contrarily with previous MAC protocols that aim to high throughput mostly. In order to satisfy the new significant requirements, many MAC protocols of WSN employ and try to enhance the duty cycle mechanism which is energy efficient technique in MAC layer. This duty cycle mechanism is oriented by toggling the transceiver conditions composed of wakeup and sleep states. The synchronous MAC protocols perform the period synchronization process. Hence, these are energy efficient in periodic monitoring environment, but are inefficient in where an event is incurred rarely and infrequently. Otherwise, the performance of asynchronous MAC protocols are contrarily with synchronous protocols. In this paper, we design two models consisting Always-busy and Always-idle ti simplify the general network congestion conditions. Through these models, moreover, we analyze two types MAC protocols in terms of energy efficiency and delay performance by analytical results. Additionally, we also evaluate two MAC protocols with two gongestion models that we designed. By the analytical and simulated results, we provide the general and efficient decision method in which protocols are more appropriate in a certain WSN environment.

• 환경위생공학
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• 제22권2호
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• pp.35-40
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• 2007

It disposes positively in the air pollution damage which is serious, in order help period the place where it improves the quality of existence and life of the local residents. It removed the offensive odor regulation material and the technique it will be able to prevent to sleep it researched it did. After scattering the GNC solution which develops the offensive odor regulation material which occurs from the food and trash treatment plant which is located to the S from the H, company after scattering the GNC solution which it develops collection it did a control criminal record control kind air and it analyzed. In this study, we investigated the emission concentrations of offensive odorous compounds of hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide, trimethylamine, formaldehyde, acetaldehyde, propionaldehyde, buthylaldehyde, iso-valeric aldehyde, n-valeric aldehyde, ammonia. The concentrations of odorous compounds are determined by gas chromatography, HPLC and uv-vis spectroscopy. Hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide were not detected at any point examined.

• 대한한의정보학회지
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• 제15권2호
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• pp.93-99
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• 2009

Objective: The aim of this study is to show one case of cerebral infarction patient with chest discomfort, insomnia and constipation improved by Daehwanghwangryeonsasim-tang. Methods: The patient was treated with herbal medicine (Daehwanghwangryeonsasim-tang) and acupuncture. Changes in symptoms for treatment period were observed. Result: Intensity and frequency of chest discomfort was decreased. Sleep time was increased and constipation was improved. Conclusion: Daehwanghwangryeonsasim-tang is effective on symptoms of the pattern of heart heat and fire-heat.

• 여성건강간호학회지
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• 제16권1호
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• pp.1-9
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• 2010

Purpose: The study addressed the adaption of middle- aged Korean women to menopause, including the use of Yangsaeng, a traditional health care regimen that incorporates specific principles and methods to promote health and prevent illness, with the aim of improving health and longevity of life. Methods: Middle-aged women (40~59 years, n=171) residing in Seoul and Gyeong-Gi Province. Data was collected by using a self-reported questionnaire. Menopausal period adaptation was measured by 29 items in four categories (physical, self-concept, role function, and inter-dependent). Yangsaeng was measured by 31 questionnaire items in eight categories (morality, mind, diet, activity and rest, exercise, sleep, seasonal, and sexuality). Results: Significant differences in menopausal adaptation were evident on the basis of participant education and income. There were significant differences in Yangsaeng in terms of participant education, nature of employment, and income. Menopausal adaptation positively correlated to use of Yangsaeng. Physical adaptation, self-concept adaptation, role function adaptation, and inter-dependent adaptation positively correlated to morality Yangsaeng, mind Yangsaeng, and activity and rest Yangsaeng. Conclusion: Middle-aged Korean women who practice Yangsaeng may be better positioned to adapt to menopause. Yangsaeng may be an advantageous nursing intervention in this population.

• 성인간호학회지
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• 제15권4호
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• pp.617-627
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• 2003

Purpose: The purpose of this study is to investigate fatigue and its related factors in cancer patients receiving radiotherapy. Method: The subjects of this study consisted of 98 patients receiving radiotherapy. Subjects were recruited from C University Hospital radiation oncology unit located in Gwangju from March to May, 2001. Questionnaire and medical records were used for data collection. The obtained data was analyzed using SAS program that included descriptive statistics, t-test, ANOVA, Post-hoc test(Fisher's LSD) and Pearson's correlation coefficients. Result: The fatigue perceived by the subjects was middle level ($5.59{\pm}1.59$) and 72.4% of them reported greater than 5 points. The subjects in no religion, low income, and spouse caregiver groups experienced the higher fatigue than another groups, respectively. The subjects in nasopharyngeal cancer, head & neck radiation site, and analgesics medication groups did, experience fatigue as well. The fatigue not only positively correlated with symptom distress, disruption of usual activity, sleep dissatisfaction, and mood state, but also negatively with less family support. Conclusion: Cancer patients receiving radiotherapy experience the middle level of fatigue and it correlates with the multi-dimensional factors. However, further research is needed to identify the changes in fatigue over the radiotherapy period through longitudinal design and to develop nursing intervention for fatigue decrease.

• 한국실내디자인학회논문집
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• 제20권4호
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• pp.183-190
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• 2011

Lately majority of churches have preferred to enlarge their worship area to both horizontal and vertical axis. According to expand their area which brings more devotees to the limited service area. Transform from a small church into a large church is no longer unprecedented issue in South Korea. As the size of church getting bigger, many unexpected issues become matters. One of the significant problem is that the number of people have experienced either fall a sleep or feel a doziness during their service period. Due to the limited condition for the specific building type such as religion facility(church), IAQ improvements is seriously concerned. Therefore, we are going to examine by using simulation tool, CF, a difference of ventilation efficiency about the location and number of windows, and find the best way of the ventilation efficiency in a multi-stories type church by changing the exhaust pipes location and size. Furthermore, in this thesis, by changing a ceiling height from the existing building to confirm that $CO_2$ have been satisfied for both the ventilation efficiency and IAQ.

• 대한의생명과학회지
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• 제18권4호
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• pp.428-434
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• 2012

Epilepsy is a chronic neurological disease showing a symptom of repeated seizures without any other physical disorders. Among the diagnostic examination for epilepsy, the electroencephalogram (EEG) has been known as an important test. This study aimed to investigate the EEG with photic stimulation in the pediatric epilepsy patients. They underwent digital sleep and waking EEGs or waking EEGs with photic stimulation. Epilepsy type, seizure history, and season of occurring seizure were analyzed. Epilepsy patients showed more response during the period of photic-on and eye close at the frequency of 10~20 Hz during the EEG activation procedure. Photoparoxysmal response (PPR) was shown in 206 patients out of total 1,551 epilepsy patients. PPR was appeared more frequently during summer and winter seasons, and especially in the patients who had a history of seizure. During the PPR, EEG pattern showed spike (77.18%), theta (9.71%), and spike + theta (13.11%). On the other hand, beta and theta waves were not significantly changed by photic stimulation. However, alpha wave was decreased and delta wave was increased by photic stimulation (P<0.05). These changes may be due to temporarily altered electrophysiological function of the epileptic patient's brain by the photic stimulation. There was no difference in the EEG pattern between the left and right side in the brain. In conclusion, condition of photic-on with closed eyes and frequency of 10~20 Hz during the procedure of EEG activation could be appropriate for obtaining a definite photoparoxysmal response in the electroencephalogram of the pediatric epilepsy patients.

• 대한가정학회지
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• 제24권3호
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• pp.103-118
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• 1986

A survey of ecological aspects of food, focused on breakfast of 1,526 adults with various professional occupations such as professors, teachers, employees of government, bank and company, and 1,928 students of various levels in the urban areas, was conducted from March, 1984 to February, 1985. The results were shown as follows: Significancy was found between appetite at breakfast, and bed time, status of sleep, eating outside the home on the previous evening, meal or snack of the previous late evening, and exercise before breakfast. The study showed that only 15.2% of the subjects had a good appetite at breakfast; 28.1% had a poor appetite; others had indifferences. About 45% of the subjects had their evening meal between 7pm. and 8pm.; bank employees had breakfast further later than 9pm.. Surprisingly, 31.3% of the subjects had snacks later than 10pm..Nearly one-fourth of subjects, in general, and 34.4% of the subjects in Seoul, had breakfast by themselves due to different schedules of family members. Breakfast patterns of the subjects during a period of 7 days were distributed as follows: 5.5 times for rice-oriented Korean meal; 0.6 times for bread type meal; 0.9 times for the omission of meal. The study described that the subjects who had bread type breakfast consumed only 3.7 items of food, whereas the subjects who had Korean breakfast consumed 7.1 items, on the average. Better breakfast eating habits for an adequate daily diet should be emphasized through nutrition education for adolescents and at the worksite.