• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.1425-1426
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• 2010

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.3
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• pp.347-358
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• 2016

The paper presents a software architecture for a wearable device to measure vital signs with the real-time user's behavior recognition. Taking vital signs with a wearable device help user measuring health state related to their behavior because a wearable device is worn in daily life. Especially, when the user is running or sleeping, oxygen saturation and heart rate are used to diagnose a respiratory problems. However, in measuring vital signs, continuosly measuring like the conventional method is not reasonable because motion artifact could decrease the accuracy of vital signs. And in order to fix the distortion, a complex algorithm is not appropriate because of the limited resources of the wearable device. In this paper, we proposed the software architecture for wearable device using a simple filter and the acceleration sensor to recognize the user's behavior and measure accurate vital signs with the behavior state.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.10a
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• pp.113-116
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• 2000

The purpose of this study is to present a method for determining the k most vital arcs in shortest path problem using an evolutionary algorithm. The problem of finding the k most vital arcs in shortest path problem is to find a set of k arcs whose simultaneous removal from the network causes the greatest increase in the total length of shortest path. The problem determining the k most vital arcs in shortest path problem has known as NP-hard. Therefore, in order to deal with the problem of real world the heuristic algorithm is needed. In this study we propose to the method of finding the k-MVA in shortest path problem using an evolutionary algorithm which known as the most efficient algorithm among heuristics. For this, the expression method of individuals compatible with the characteristics of shortest path problem, the parameter values of constitution gene, size of the initial population, crossover rate and mutation rate etc. are specified and then the effective genetic algorithm will be proposed. The method presented in this study is developed using the library of the evolutionary algorithm framework (EAF) and then the performance of algorithm is analyzed through the computer experiment.

• Child Health Nursing Research
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• v.16 no.2
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• pp.128-135
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• 2010

Purpose: This study aimed to confirm the effect of routine suctioning at a nursery for healthy newborns who have undergone immediate oronasopharyngeal bulb suctioning after birth in a delivery room through the observation of their oxygen saturation level, heart rate, respiration rate, the vomiting sign, and the number of instances of vomiting. Methods: Data were collected for 62 days from March 15 to May 15, 2009 at the nursery of a hospital located in Seoul. One hundred forty newborns were assigned to one of three groups: a no suction group, an oropharyngeal suction group, or a orogastric suction group. Collected data were analyzed with the SPSS WIN 15.0 program using ANOVA, cross tabulations and an independent 2-sample t-test. Results: Routine suctioning to healthy newborns resulted in decreasing oxygen saturation levels and increasing the heart and respiration rate regardless of the kind of suctioning. Stabilization of the oxygen saturation level and vital signs was also observed without suctioning. Conclusion: To prevent healthy newborns from the side effect of suctioning, selective suctioning is recommended.

• Journal of the korean academy of Pediatric Dentistry
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• v.29 no.3
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• pp.455-462
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• 2002

Currently, the ages of the patients visiting dental hospital for dental care are becoming younger and the interest in the treatment for the handicapped and incapable of cooperation children increases. As a method for treatment of these patients, the sedation treatment is considered. A dental sedation using chloral hydrate and hydroxyzine of them were used widely and for a long time. In this study, the samples were consisted of incapable of cooperation or very young children required treatment of restoration under local anesthesia. Then, the vital signs were accessed in pediatric dental sedation using the combination of chloral hydrate and hydroxyzine. As a result of this study, the vital signs were little different in pediatric dental sedation using the combination of chloral hydrate and hydroxyzine. Simply, the respiration rate and pulse rate decreased according to sleeping of patients. Therefore, the sedation using the combination of chloral hydrate and hydroxyzine induced to appropriate sedation in incapable of cooperation or very young children with little effects of vital signs.

• Journal of Sensor Science and Technology
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• v.31 no.6
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• pp.433-440
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• 2022

Recently, owing to global warming, average summer temperatures are increasing and the number of hot days is increasing is increasing, which leads to an increase in heat stroke. In particular, outdoor workers directly exposed to the heat are at higher risk of heat stroke; therefore, preventing heat-related illnesses and managing safety have become important. Although various wearable devices have been developed to prevent heat stroke for outdoor workers, applying various sensors to the safety helmets that workers must wear is an excellent alternative. In this study, we developed a smart helmet that measures various vital signs of the wearer such as body temperature, heart rate, and sweat rate; external environmental signals such as temperature and humidity; and movement signals of the wearer such as roll and pitch angles. The smart helmet can acquire the various data by connecting with a smartphone application. Environmental data can check the status of heat wave advisory, and the individual vital signs can monitor the health of workers. In addition, we developed an algorithm that classifies the risk of heat-related illness as normal and abnormal by inputting a set of vital signs of the wearer using a support vector machine technique, which is a machine learning technique that allows for rapid binary classification with high reliability. Furthermore, the classified results suggest that the safety manager can supervise the prevention of heat stroke by receiving feedback from the control system.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.6 no.3
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• pp.382-396
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• 1999

This study was attempted to prove the effect of emotional stability and vital signs applying music therapy program to the children admitted in the PICU. Data were collected from July to September, 1997. The subjects were 30 patients admitted in the PICU of 'S' University Hospital which were divided into two groups of experimental and control. Each group had 15 subjects. Method was nonequivalent control group pretest-postteset repeated design, observing vital signs and activity of subjects prior, during, and after the music intervention. The study tools were cassette tapes of 'Mother's music whose babies want to listen' and Space-lab patient monitor. Data were analyzed using the $SPSS/PC+;x^2$ test and t-test to analyze of the general characteristics ; paired t-test to prove hypotheses. Result were as follows; 1. Infants lower than seven months showed changing into stable vital signs from applying the music therapy, however infants from eight months to three-year old showed no change in vital signs. 2. Vital signs changed to stabilized condition in infants lower than seven months were heart rate and respiration rate. 3. The stability of vital signs during music therapy turned back to the previous state while terminating music therapy. 4. The effect of music therapy in the state of activity had on both infants group of lower than seven months and from eight months to three-year old, particularly more effective in the later group. I recommend follows on the base of above results ; 1. As above results shows, listening to music is effective on infants and toddler, intervention with music therapy appropriate to chidlren's age is hot recommended. 2. Comparative study with noise blocking effect and music therapy effect within the ICU environment be recommended. 3. The repeated study on when the exact time is and how many repeat the music therapy to show the above mentioned effect be recommended. 4. We recommend this music therapy to be done in the recovery room, isolating room, operating room as well as ICU.

• Korean Journal of Occupational Health Nursing
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• v.21 no.3
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• pp.317-325
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• 2012

Purpose: This study was to examine the effects of noise block on anxiety and vital sign of gynecologic laparoscopic surgery. Methods: The data were collected from March to May 2011. Participants were sixty patients with gynecologic laparoscopic surgery, divided into 30 of experimental group and 30 of control group at C University hospital located in I city. The day before surgery, demographic data, trait-state anxiety and vital signs were measured at ward. After noise block, the data were measured using VAS anxiety and vital signs before anesthesia and in recovery room. And then state anxiety and vital signs were measured in ward after surgery. The data were analyzed by $x^2$-test, t-test, repeated measured ANOVA and Bonferroni comparison method using SPSS/WIN 19.0. Results: After conducting noise block program, the experimental group showed significant decrease in state anxiety and heart rate compared to those of the control group. But there were not significant differences in VAS anxiety, systolic pressure and diastolic pressure between two groups. Conclusion: This program can be regarded as an effective nursing intervention for the management of anxiety with gynecologic laparoscopic surgery.

• Journal of the Korea Safety Management & Science
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• v.17 no.4
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• pp.231-240
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• 2015

In this study, to find out the effect of psychological anxiety of the patients during MRI examination on the claustrophobia and vital signs, As for a study tool, to measure Anxiety Sensitivity Index(ASI), Kamsung Evaluation Index of Life Environmental Noise(KEI), Diagnostic and Statistical Manual of Mental Disorders(DSM-IV) was used, and for vital signs, blood pressure and pulse rate were measured pre and post MRI examination. In conclusion, it was indicated that though the effect of the general characteristics, psychological anxiety, on noise sensitivity and claustrophobia was small, the psychological anxiety of the patients during MRI examination affected claustrophobia and vital signs.

• Korean Journal of Veterinary Research
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• v.37 no.4
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• pp.925-934
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• 1997

This study was directed at inducing the production of antibodies by immunizing heifers with bovine sperm antigen and on measuring the serum antibodies using indirect immunofluorescence assay(IFA) and agglutination test. The effect of antisperm antibodies on fertilizing capacity of bovine spermatozoa was evaluated. 1. Three heifers between 12- and 15- month old were immunized with bovine spermatozoa or phosphate-buffered saline. In heifers immunized with bovine spermatozoa serum IgG level was highest between 3 weeks and 5 weeks postimmunization detected by IFA. The antibody levels persisted through week 7 and slowly declined until week 20 and then antisperm antibodies were localized on spermatozoa. The fluorescent antisperm antibodies were detected at 2~20 weeks and at 6~9 weeks postinoculation on acrosome and tail, respectively. Among 21 sera from repeat breeder cows, only one cow has shown positive antisperm antibody response detected by IFA. 2. In spite of vital rate of bovine sperm after swim-up was not significantly affected by different concentration of antisperm antibodies in sera, the numbers of bovine sperm after swim-up were significantly reduced in proportion to the increased concentration of antibodies. Above 1/512 dilution of antibody neither influence on vital rate and numbers of bovine sperm nor sperm agglutination after swim-up. The study has also shown that the vital rate and number of sperm after swim-up and capacitation were also significantly reduced by the addition of antisperm antibodies. Although antisperm antibodies did not influence on the acrosome reaction rate of sperm during swim-up, did significantly reduce the sperm acrosome reaction rate after capacitation. The studies have resulted that the bovine antisperm antibodies can prevent the sperm motility by agglutination and block the capacitation and acrosome reaction of bovine sperm.