• Investigative Magnetic Resonance Imaging
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• 제19권1호
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• pp.19-30
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• 2015

Purpose: A new compressed sensing technique by iterative truncation of small transformed coefficients (ITSC) is proposed for fast cardiac CINE MRI. Materials and Methods: The proposed reconstruction is composed of two processes: truncation of the small transformed coefficients in the r-f domain, and restoration of the measured data in the k-t domain. The two processes are sequentially applied iteratively until the reconstructed images converge, with the assumption that the cardiac CINE images are inherently sparse in the r-f domain. A novel sampling strategy to reduce the normalized mean square error of the reconstructed images is proposed. Results: The technique shows the least normalized mean square error among the four methods under comparison (zero filling, view sharing, k-t FOCUSS, and ITSC). Application of ITSC for multi-slice cardiac CINE imaging was tested with the number of slices of 2 to 8 in a single breath-hold, to demonstrate the clinical usefulness of the technique. Conclusion: Reconstructed images with the compression factors of 3-4 appear very close to the images without compression. Furthermore the proposed algorithm is computationally efficient and is stable without using matrix inversion during the reconstruction.

• 한국의사학회지
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• 제25권1호
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• pp.81-91
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• 2012

Objectives : "Yayaoyuanfang" is a prescription book, compiled by Xuguozhen in 1267. In "Yayaoyuanfang", there are 13 chapters including "Throat, Mouth and Teeth". Because there are few prescription books focused only on mouth and teeth disease in traditional medicine, "Throat, Mouth and Teeth" in "Yayaoyuanfang" is distinctive. Methods : We try to analyze prescriptions by form, effectiveness and report experiences in "Yayaoyuanfang". Results : There are 95 prescriptions with 77 powder, 5 paste, 5 liquid, 2 granule and 5 other forms. Effectiveness of those are divided into teeth, gum and mouth. Effectiveness for teeth are about pains, weakness, cavity, discoloration and so on. Effectiveness for gum are about pain, swelling, weakness, shrinking, etc. Effectiveness for mouth is about bad breath. Conclusions : "Throat, Mouth and Teeth" in "Yayaoyuanfang" has professional prscriptions for throat, mouth and teeth with several form and effectiveness.

• Korean Journal of Acupuncture
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• 제28권4호
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• pp.177-198
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• 2011

Objectives : The purpose of this study is to examine the theory of mind and body practice in Dan-Jeon-Ju-Seon from the point of views of Taoism, Buddhism, and Oriental medicine. Methods : An ideological background and development of Dan-Jeon-Ju-Seon was first examined. Then, the definition of, other descriptions of, and various locations of, Dan-Jeon were investigated. In addition, the theory of Qi movement of Shui Sheng Huo Jiang (ascent of water Chi and descent of fire Chi) in Dan-Jeon-Ju-Seon was taken into consideration from perspectives on the thought of Taoist Nei Dan (internal alchemy) and Oriental medicine. Finally, the characteristics of mind and body practice in Dan-Jeon-Ju-Seon. Results & Conclusions : Dan-Jeon in Dan-Jeon-Ju-Seon consists of three parts, upper, middle, and lower Dan-Jeon, which is related to Jing (sperm, essence) Qi (breath, eneregy) Shen (spirit, intellect) of our body. Jing Qi Shen is a crucial part in our mind and body, mind and body are connected by energy, and the energy flow is possible by ascent of water Chi and descent of fire Chi. Ultimately, Dan-Jeon-Ju-Seon is a method of practice to keep one's mind and body healthy, and its purpose is to do timeless meditation in our daily lives regardless of time and place.

• 음성과학
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• 제8권3호
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• pp.173-184
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• 2001

The purpose of this study was to examine the effects of manipulating loudness and pitch in terms of speech intelligibility and voice of a patient with Parkinson's Disease. The subject, who was diagnosed as a patient with Parkinson's disease 11 years ago, demonstrated a severely breath voice with low intensity. The accuracy of articulation in consonants was intelligible only at the single word level, and the overall intelligibility in continuous speech was low. The results showed that the subject's articulation accuracy and speech intelligibility was significantly improved after having loudness and pitch training. Habitual Fo, Jitter, Shimmer, Fo tremor, Amp tremor were decreased after training. In addition, the value of HNR also increased after training. It was shown that the changes of these acoustic parameters were closely related to the decrease of breathiness in Parkinson's voice, and this decrease of breathiness affected speech intelligibility considerably. Based on the experimental results, it was claimed that the vocal training by manipulating the loudness and pitch could be highly effective in improving the voice quality and speech intelligibility in Parkinson's Disease.

• 전자통신동향분석
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• 제34권4호
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• pp.89-97
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• 2019

The olfactory bio technology is largely based on its corresponding recognition technology and smell stimulus that acquires, analyzes, and processes volatile organic compounds present in chemical molecules, which are present in the breath or air evoked by an electronic nose artificially imitating the human biological nose. The olfactory bio technology is also based on a scent display technology that automatically diverges various digital flavors based on aesthetics, concentration, duration, and intensity information required to enhance the sensibility using a computer. Recently, attempts have been made to apply noninvasive screening of dementia by sensing, analyzing, encoding, and transmitting bio information obtained through an olfactory interface, both domestically and externally; further, the olfactory medical content technology has been applied to delay or reduce the onset of dementia. In this study, we will focus on early screening of dementia using olfactory biology information and dementia cognitive enhancer content that delays or reduces the onset of dementia.

• 보건의료산업학회지
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• 제13권2호
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• pp.81-92
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• 2019

Objectives: The purpose of this study was to discuss the overall and oral health conditions that affect obesity in middle-aged women in Jeju and to help them operate the effective obesity program in the future. Methods: Participants of this study were 171 middle-aged women living in Seogwipo City, Jeju Special Self - Governing Province. Data were collected through the convenience sampling method. Body mass index and waist circumference of each participant were measured, and a self-report questionnaire was applied. Results: The overall health status of obesity comprised depression, stress, diabetes, and menopause. The oral health conditions affecting obesity were bad breath and chewing. Hypertension was the main factor affecting body mass index and depression was the main factor influencing waist circumference. Obesity was more influenced by overall health status factors than by oral health status factors. Conclusions: The results of this study are expected to be useful as basic data for efficient health care services in the prevention of obesity.

• 디지털산업정보학회논문지
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• 제18권3호
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• pp.33-41
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• 2022

Recently the use of personal mobility devices is rapidly increasing, and the businesses related to personal mobility devices are quickly growing as well. Although the use of personal mobility devices provides convenience for short distance movements, many problems occur due to the lack of safety devices and the absence of associated road traffic laws. The number of accidents caused by using personal mobility devices continues increasing every year, and the injuries or deaths are seriously happening with those accidents. When using personal mobility devices, there are basic safety precautions such as wearing a helmet, prohibiting boarding with more than two people, prohibiting boarding with more than 100kg, prohibiting using after drinking alcohol, and so on. However, it is exposed to traffic accidents because there is no way to check before using the system. Therefore, to ensure the user's safety in using the electric kickboard among personal mobility devices, this paper proposes a system that can check the user's safety state before using the electric kickboard. It is possible to safely use personal mobility devices and prevent accidents by proposing a system structure of the electric kickboard that can be used after checking for the use of more than two people, overweight, wearing a helmet, and drinking alcohol.

• 한국동물위생학회지
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• 제45권4호
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• pp.317-323
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• 2022

Dirofilariasis is a mosquito-borne parasitic infection that mainly causes symptoms such as chronic cough, respiratory distress, abnormal breath sounds, heart valve dysfunction, right heart hypertrophy, liver congestion and cirrhosis, ascites, and pleural effusion in dogs. In this study, from June to September 2021, we collected and identified mosquitoes in parks where citizens often take their dogs for a walk, and created pools from them by month, species, and location. These pools were checked for the infection of Dirofilaria immitis by PCR and the minimum infection rates (MIRs) were calculated. The MIR of all mosquitoes collected was 6.4, and the MIRs of mosquitoes from Daewangam Park, Yeocheoncheon Walk, Taehwagang National Garden, and Sinbulsan County Park were 9.7, 4.7, 2.1, and 0, respectively. It also confirmed that Aedes hatorii, Aedes vexans nipponii, and Ochlerotatus koreicus were major vectors of heartworm in Ulsan. Our results suggest that heartworm prophylaxis should be considered in Ulsan.

• 한국산업보건학회지
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• 제20권4호
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• pp.236-240
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• 2010

This study demonstrates the use of a chemical containing potassium superoxide (KO2) to convert carbon dioxide (CO$_2$) in air to oxygen (O$_2$). A oxygen generating closed-circuit SCBA (self contained breathing apparatus) removes carbon dioxide by a chemical reaction with potassium dioxide that consumes the carbon dioxide and produces oxygen. Considering the disasters, there is a need to develop strategies to enable the introduction of self-contained self rescuers (SCSR). The potassium superoxide reacts with the wears breath to produce oxygen and absorb carbon dioxide. If the respiration rate of a person is 5 MET (metabolic equivalent), to say 30 L/min, at disaster such as fire, mass of potassium superoxide was evaluated as 33.3 g with yield and safety factor. Four researchers tested on a laboratory treadmill breathing through SCSRs in a closed circuit, it appears useable for 9 minutes.

• 수산해양교육연구
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• 제29권3호
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• pp.719-731
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• 2017

The aim of this study was to analyze a group of pre-service elementary teachers experience on the cognitive terms of biology inquiry subjects, and experience on living materials related with the domain of life in the Korea elementary school science textbook. Firstly, elementary school pre-service teachers had the confidence of inquiry subjects related with the domain of life such as 'when we take breath what will happen in human body?' and 'Can we make the model of human body?' But they did have the most diffidence of 'The search for pieris rapae, a cabbage butterfly's life', 'Can we grow the little creature?' The reason why pre-service elementary teachers had diffidence of comprehending experiment procedure and planning ability was that 'they focused on understanding the scientific concepts instead of planning experiments by themselves', and 'they carried out the least amount of experiments' Secondly, elementary school pre-service teachers had never experienced biology materials related with the domain of life in the Korea elementary school biology science textbook such as 'tradescantia reflexa', 'Caddis larva', 'hydrilla verticillata', and 'Plantain lily.' According to the findings obtained from the study, the reason why they had never seen the biology materials was that they had the least opportunity of immediately observing life creatures due to memorization-intensive classes.