• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.18 no.2
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• pp.62-69
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• 2005

Objective: This study is to explore the various aspects of the fatigue perceived by patients with Bell's palsy Method: 33 patients who were diagnosed as Bell's palsy were sequentially interviewed and examined Results: The results were as follows 1. The mean average fatigue score of subjects was $1.79{\pm}0.41$ : the physical fatigue revealed the highest value with a mean of $1.84{\pm}0.50$, followed by neurosensory fatigue with a mean of $1.77{\pm}0.42$, psychological fatigue with a mean score of $1.76{\pm}0.54$. 2. With the respect to the general characteristics of subjects, there were statistically significant differences in the patients' fatigue perception by age and the amount of sleeping time. Conclusions: We needed the further study about the relation between fatigue and Bell's palsy

• Transactions of the Korean Society of Mechanical Engineers B
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• v.21 no.1
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• pp.185-194
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• 1997

An experimental study has been performed on the effect of baffle parameters on shell -side heat transfer in a conventional shell-and-tube heat exchanger. The baffle spacing distance and the number of baffle were varied to investigate the behavior of unequal baffle spacing correction factor which is appeared in the Bell Delaware method for prediction of the shell-side heat transfer coefficient. It was obvious that heat duties obtained from the experiment significantly deviated from those calculated by the conventional Bell-Delaware method. A new correlation of the unequal baffle spacing correction factor was developed. It was shown that the new correlation improves the accuracy of the Bell-Delaware method considerably. This result may induce the use of the Bell-Delaware method in developing a computer software for design of shell-and-tube heat exchangers.

• The Korean Journal of Pain
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• v.14 no.1
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• pp.93-97
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• 2001

Facial nerve palsy is not a serious disease, but it can be both upsetting and disabling for patients. More than half of the lesions of facial nerve palsy fall into the category termed Bell's palsy. It is very rare to find a representative case of bilateral Bell's palsy. Here we report the changes of infrared thermographic findings in bilateral Bell's palsy treated with a stellate ganglion block (SGB). A 45-year-old female patient who had a right facial palsy which developed 2 weeks before. Steroid administration and acupuncture was not effective and so she was referred to pain clinic. The right facial palsy was cured after 19th right SGB. Twenty eight days after the onset of the right facial palsy, left facial palsy also developed and cured completely with a left SGB. Serial infrared thermograms were performed. The hypothermias on the affected side improved symmetrically by the end of the treatment.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.26 no.7
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• pp.857-864
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• 2016

In the present work, vibration analysis of high speed rotary bell cup model for paint atomizer application is carried out through numerical simulation. At first, eight bell cup models, considering four different cup shapes and two different cup diameters, are proposed and corresponding dynamic characteristics are investigated. To evaluate the operating stability, critical speed analysis is conducted using Campbell diagram and separation margin between operating speed and critical speed is identified. Unbalance vibration responses are also studied according to operating speed and balancing quality grade of G. Finally, the stability and adequacy of the proposed bell cup models are discussed for field application.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.19 no.3 s.31
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• pp.146-157
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• 2006

Objective : This study is to explore the various of the stress by perceived by paitents with Bell's palsy Methods : 50 patients who were diagnosed as Bell's palsy were sequentially interviewed and examined Results : The results were as follows 1. The mean average PWI(Psychosocial well-being index, total : score)was $41.58{\pm}17.53$ :Factor I(Social performance and self-confidence) with a mean of $11.18{\pm}8.38$, Fact II( Depression) with a mean of $8.94{\pm}6.26$, Factor III(Sleeping disturbance and anxiety) with a mean $of7.56{\pm}5.20$, Factor IV(General well-being and vatality)with a mean $of9.90{\pm}4.44$ 2. With the respect to the general characteristics of subjects, there were statistically significant differences in the patients's stress perception by sex, having an occupation and the amount of sleeping time. Conclusions : We needed the further study about the relation between stress and Bell's palsy

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.11
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• pp.952-962
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• 2015

Various types of altitude compensation nozzles have been investigated to develop an effective propulsion system. In order to obtain baseline data for future study of dual bell nozzles, main characteristics and key parameters of dual bell nozzles are summarized and described by analysing DLR dual bell nozzles. DLR's experimental researches show that inflection angle is proportional to transition NPR, and extension length is proportional to side load, but inversely proportional to transition NPR and transition duration. Therefore, the nozzle geometry can be determined through the performance prediction process and thus the optimization process is required to meet performance requirements between parameters.

• Journal of the Korean Society of Propulsion Engineers
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• v.21 no.3
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• pp.68-75
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• 2017

Dual bell nozzle is a type of altitude compensation nozzle, which is a nozzle that minimize the losses of the specific impulse at the off-design point of a typical bell nozzle. In this paper, numerical computations are performed to understand the transition characteristics of dual bell nozzles with fixed expansion ratios. The major design variables are the length of extension and the angle of inflection. As the length of the extension increased, the transition altitude and transition duration increased and the reduction of the thrust coefficient decreased. As the angle of inflection increased, the transition altitude and transition duration decreased and the reduction of the thrust coefficient increased.

• Journal of Oriental Neuropsychiatry
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• v.28 no.2
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• pp.83-94
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• 2017

Objectives: The purpose of this study was to conduct a characteristic study on Bell's palsy patients using the Core Seven Emotion Inventory (CSEI) followed by correlation analysis with BAI and BDI. Methods: This study was conducted by analyzing medical records of 30 patients that had visited ${\bigcirc}{\bigcirc}$ University Oriental hospital and completed the Core Seven Emotions Inventory (CSEI), BAI and BDI. A total of 30 patients diagnosed with Bell's palsy were analyzed using SPSS (Statistical Package for the Social Science, IBM, United States of America, Version 22.0). Descriptive statistics, Independent t-test, One-way repeated measure, ANOVA and Pearson Correlation analysis were used for data analysis. Results: 1. Kyeong (驚), Bi (悲) and Gong (恐) emotions were relatively higher than U (憂), Hui (喜). 2. According to sex, female patients exhibited higher Kyeong (驚) and Gong (恐) emotions than male patients. 3. According to age, patients older than 60 exhibited higher Hui (喜) emotion than patients younger than 59. 4. According to the correlation between prognosis and age in patients older than 60 revealed negative correlation in Kyeong (驚) and Gong (恐) emotions. Conclusions: Using the Core Assessment Instrument based on Chiljeong for Bell's palsy patients is effective relative to diagnostic and clinical aspects of Bell's palsy.

• Journal of the Korean Institute of Intelligent Systems
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• v.17 no.6
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• pp.804-806
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• 2007

The usual arithmetic operations on real numbers can be extended to arithmetical operations on fuzzy intervals by means of Zadeh's extension principle based on a t-norm T. Dombi and Gyorbiro proved that addition is closed if the Dombi t-norm is used with two bell-shaped fuzzy intervals. Recently, Hong [Fuzzy Sets and Systems 158(2007) 739-746] defined a broader class of bell-shaped fuzzy intervals. Then he study t-norms which are consistent with these particular types of fuzzy intervals as applications of a result proved by Mesiar on a strict f-norm based shape preserving additions of LR-fuzzy intervals with unbounded support. In this note, we give a direct proof of the main results of Hong.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2011.10a
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• pp.737-742
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• 2011

Because of complex structure of inlet and outlet flows, the performance of centrifugal fans used in a household refrigerator is affected by many parameters of duct system surrounding the fans. In this paper, the performance of a centrifugal fan is numerically analysed according to shapes of inlet bell-mouth. To improve performance of the centrifugal fan, some design parameters are selected for comparison. On a basis of these comparison, optimum shape of inlet bell-mouth is proposed to maximise the flow rate of the fan.