• 제목/요약/키워드: Comparison Group Method

검색결과 1,624건 처리시간 0.032초

DNA 코딩방법과 GA 코딩방법의 패턴인식 성능 비교에 관한 연구 (Performance Comparison on Pattern Recognition Between DNA Coding Method and GA Coding Method)

  • 백동화;한승수
    • 한국지능시스템학회:학술대회논문집
    • /
    • 한국퍼지및지능시스템학회 2002년도 추계학술대회 및 정기총회
    • /
    • pp.383-386
    • /
    • 2002
  • In this paper, we investigated the pattern recognition performance of the numeric patterns (from 0 to 9) using DNA coding method. The pattern recognition performance of the DNA coding method is compared to the that of the GA(Genetic Algorithm). GA searches effectively an optimal solution via the artificial evolution of individual group of binary string using binary coding, while DNA coding method uses four-type bases denoted by A(Adenine), C(Cytosine), G(Guanine) and T(Thymine), The pattern recognition performance of GA and DNA coding method is evaluated by using the same genetic operators(crossover and mutation) and the crossover probability and mutation probability are set the same value to the both methods. The DNA coding method has better characteristics over genetic algorithms (GA). The reasons for this outstanding performance is multiple possible solution presentation in one string and variable solution string length.

일반아모와 추후관리를 받은 저출생체중아모의 모성자존감, 산후우울, 가족기능의 비교 (Comparison of Maternal Self-esteem, Postpartal Depression, and Family Function in Mothers of Normal and of Low Birth-weight Infants)

  • 안영미;김정현
    • 대한간호학회지
    • /
    • 제33권5호
    • /
    • pp.580-590
    • /
    • 2003
  • Purpose: The study investigates the degree of maternal self-esteem, postpartal depression, and family function in mothers of normal and of low birth-weight infants. Method: A retrospective cohort design was applied to compare the variables of interest between a group of 73 mothers with normal birth weight infants and a group of 45 mothers with low birth-weight infants, using the maternal self-report inventory(MSRV), Edinburgh Postnatal Depression Scale(EPDS) and Family APGAR(FAPGAR). Result: The total mean score was 82.57 for MSRV, 8.45 for EPDS, and 6.83 for FAPGAR with no differences between two groups. A positive correlation was found between MSRV and FAPGAR, while a negative correlations between MSRV and EPDS, and FAPGAR and EPDS. Regardless of the direction of the relationship, the degrees of the correlations were stronger in low birth-weight mothers group than in normal group. Conclusion: No differences in MSRV, EPDS and FAPGAR between the normal and the low birth-weight group considered as beneficial effects of the follow-up management which low birth-weight group was engaged in. This suggested the early intervention(follow-up) for the family with risk factor(low birth-weight) could reduce negative outcomes such as the impaired maternal self-esteem and family function, and the occurrence of postpartal depression, retrospectively.

Neutron Activation Analysis를 이용한 Composite Resin의 변연누출 측정에 관한 실험적 연구 (AN EXPERIMENTAL STUDY ON THE MEASUREMENT OF MARGINAL LEAKAGE USING A NEUTRON ACTIVATION ANALYSIS)

  • 김미자;이명종
    • Restorative Dentistry and Endodontics
    • /
    • 제13권1호
    • /
    • pp.185-190
    • /
    • 1988
  • The study was designed to establish quantitative method for assessing the marginal leakage of dental restorations. 18 Class V cavities with $45^{\circ}$ bevel joint were prepared and replicas of these teeth were made with polyethylene wax. and classified with three groups. First group was filled with Scotch bond and silux. Second group was filled with glass ionomer cement:scotchbond/silux. Third group was filled with Dentin-Adhesit/Heliosit. After finishing, all specimens were subjected manually to 100 thermal cycles at $0^{\circ}C$ and $100^{\circ}C$ Samarium nitrate solution, irradiated with flux of $6{\times}12^{12}$ neutrons/$cm^2$/sec for 11 hours, woled for 200 hours, counted with the HpGe detector and the tracer uptake was determined by comparison with a standard of samarium ($10{\mu}g$). The following results were obtained. 1) The group filled with glass ionomer cement base showed least marginal leakage. 2) The group filled with Dentin-Adhesit/Heliosit showed less marginal leakage than the group filled with scotchbond/silux.

  • PDF

창의성 증진을 위한 언어적.시각적 유추의 효과검증 - 실험집단과 비교집단의 비교를 중심으로 한 실험연구 - (A Study on Effect Verification of Verbal and Visual Analogy for Creativity Enhancement - Experimental Study Focused on the Comparison of Experimental Group and Comparative Group -)

  • 최은희
    • 한국실내디자인학회논문집
    • /
    • 제20권2호
    • /
    • pp.30-38
    • /
    • 2011
  • Personal creativity could be promoted and improved through many experience, training and various prior knowledge. This researcher had proceeded several preceding studies to find effective using methods of analogy for creativity enhancement. This study, following work of preceding studies aims to verify the effects of verbal and visual analogy for creativity improvement. Effect verification had been progressed by comparing the residential design results of two groups which are classified an experimental group consisted of sophomore college students with a comparative group consisted of sophomore university students. Consequently, the experimental group that had undergone many training on verbal and visual analogy in several preceding studies is superior to the comparative group in terms of creative design rate, sketch rate with high quality. Through this result it is verified that the using methods of verbal and visual analogy is very effective on creativity enhancement in interior design process. But the limitation of this study is that there were a few populations. Nevertheless, interdisciplinary this study will be used as a practical one to suggest a model on a teaching method and a theory for creativity improvement in interior design education.

Comparison Study of the Use of Absorbable Materials as Internal Splints with Airway Silicone Splint and Absorbable Materials as Internal Splints Alone

  • Ji, So Young;Kim, Seung Soo;Park, Ki Sung;Baik, Bong Soo
    • 대한두개안면성형외과학회지
    • /
    • 제17권4호
    • /
    • pp.202-205
    • /
    • 2016
  • Background: Packing after closed reduction of nasal fracture causes uncomfortable nasal obstruction in patients. We packed the superior meatus with synthetic polyurethane foam (SPF) to support the nasal bone, and packed the middle nasal meatus with a nasal airway splint (NAS) and SPF. The aim of this article is prospectively to compare the subjective patient discomfort of SPF (Nasopore Forte plus) packing alone and SPF with NAS. Methods: We compared the prospectively subjective patient discomfort of SPF packing alone (group A) and SPF with NAS (group B) via visual analog scale (VAS; 0, no symptom; 100, most severe symptom). Results: At first postoperative day group B showed significant lower scores in dry mouth, sleep disturbance, conversation difficulty. However at third postoperative day, VAS scores of each group had no statistically significant differences. Moreover at fifth postoperative day group A had statistically significant lower scores for nasal pain, dry mouth than the group B. Conclusion: Combination method of using NAS and SPF have some advantage on the patient comfort from first postoperative day to third postoperative day.

A Comparison of Lumbar Lordotic Curves between Herniated Nucleus Pulposus Patients and Normal Subject Using a Flexible Curve Ruler

  • Jung, Yong-Mi;Choi, Jong-Duk
    • The Journal of Korean Physical Therapy
    • /
    • 제24권3호
    • /
    • pp.208-215
    • /
    • 2012
  • Purpose: We attempt to assess the differences in the degree of lumbar lordosis in patients with lower back pain caused by the herniation of the nucleus pulposus and in normal people (divided into male and female groups). Methods: This study was conducted with 14 patients (7 males, 7 females) diagnosed with, and being treated for, lumbar herniated nucleus pulposus and 14 normal people (7 males, 7 females). In order to examine the degree of lumbar lordosis in these subjects, hip flexor lengthening tests were conducted and the lumbar curves were measured in three postures (supine, sitting, and prone) and the results were compared. Results: The measured values of the curves for the standing and prone postures showed statistically significant differences between the normal group and the patient group, between the normal male group and the male patient group, and between the normal female group and the female patient group (p<0.05). Conclusion: The measurement method that uses flexible curve rulers in the standing or prone postures can be usefully utilized in assessing the lumbar lordosis of patients with lumbar herniation of the nucleus pulposus.

근관와동 가봉재 종류에 따른 변연누출의 비교 분석 (COMPARATIVE ANALYSIS OF MARGINAL MICROLEAKAGE IN VARIOUS TEMPORARY SEALING MATERIALS)

  • 윤창;홍석진
    • Restorative Dentistry and Endodontics
    • /
    • 제16권1호
    • /
    • pp.151-157
    • /
    • 1991
  • The roles of temporary sealing materials used in endodontics are impotant Especially, its marginal sealing properties affect endodontic success and failure in endodontic treatment The purpose of this in vitro study was to compare and evaluate the marginal sealing properties of various temporary restorative materials used in endodontic access cavity by using electrochemical method. Standard endodontic access cavities were prepared in extracted human molar teeth and filled with Caviton, IRM, zinc oxide - eugenol cement. Each specimen was immersed in 1 % solution of KCl, and applied a potential of 9 V external power supply. Marginal microleakage and water sorption were measured for marginal sealing effect evaluation in comparison with each group. A comparative study of the obtained results have led to the following conclusions. 1. The Caviton group showed lower marginal microleakage value than the zinc oxide - eugenol cement and IRM group the 6 th day after. The IRM group showed lwoer marginal microleakage value than the zinc oxide - eugenol cement group from the 6 th day to the 12 th day. But there was no significant difference between zinc oxide - eugenol cement and IRM group after the 13 th day. 2. As time went by, marginal microleakage value was increased in Caviton, IRM and zine oxide - eugenol cement.

  • PDF

경부근막동통증후군 환자에게 근막이완요법과 초음파치료의 비교 (A Comparison of Myofascial Release and Ultrasound in Patients with Myofascial Pain Syndrome on Neck)

  • 김종우;현상욱;서현규
    • 대한정형도수물리치료학회지
    • /
    • 제15권2호
    • /
    • pp.15-24
    • /
    • 2009
  • Objectives : The purpose of this study is to compare the effectiveness between myofascial release technique and ultrasound in subjects with myofascial pain syndrome. Method : Twenty subjects with myofascial pain syndrome were randomly assigned to a myofascial release technique group(n=10) or an ultrsound group(n=10). The Cervical Range of Motion(C-ROM) instrument was used to measure cervical range of motion. Electromyography(EMG) was used to measure muscle power sternocleidomastoid and upper trapezius. Result : The result of this study shows there were no significant differences in ROM increase and muscle power increase between the myofascial release technique group and the ultrasound group. In the group with Myofascial Release Technique, the average score was $61.40{\pm}11.12$ in SCM flexion of C-ROM and $127.87{\pm}4.24$ in Rt. upper trapezius extension of EMG. In the group with ultra sound, the average score was $68.60{\pm}10.02$ in SCM flexion of C-ROM and $131.50{\pm}5.45$ in Rt. upper trapezius extension of EMG. Conclusion : The results suggest that there was no significant difference between two therapeutic techniques.

  • PDF

A comparison of the effects of epinephrine and xylometazoline in decreasing nasal bleeding during nasotracheal intubation

  • Song, Jaegyok
    • Journal of Dental Anesthesia and Pain Medicine
    • /
    • 제17권4호
    • /
    • pp.281-287
    • /
    • 2017
  • Background: Various techniques have been introduced to decrease complications during nasotracheal intubation. A common practice is to use nasal packing with a cotton stick and 0.01% epinephrine jelly. However, this procedure can be painful to patients and can damage the nasal mucosa. Xylometazoline spray can induce effective vasoconstriction of the nasal mucosa without direct nasal trauma. In this study, we aimed to compare the efficacy of these two methods. Methods: Patients were randomly allocated into two groups (n = 40 each): xylometazoline spray group or epinephrine packing group. After the induction of general anesthesia, patients allocated to the xylometazoline spray group were treated with xylometazoline spray to induce nasal cavity mucosa vasoconstriction, and the epinephrine packing group was treated with nasal packing with two cotton sticks and 0.01% epinephrine jelly. The number of attempts to insert the endotracheal tube into the nasopharynx, the degree of difficulty during insertion, and bleeding during bronchoscopy were recorded. An anesthesiologist, blinded to the intubation method, estimated the severity of epistaxis 5 min after intubation and postoperative complications. Results: No significant intergroup difference was observed in navigability (P = 0.465). The xylometazoline spray group showed significantly less epistaxis during intubation (P = 0.02). However, no differences were observed in epistaxis 5 min after intubation or postoperative epistaxis (P = 0.201). No inter-group differences were observed in complications related to nasal intubation and nasal pain. Conclusion: Xylometazoline spray is a good alternative to nasal packing for nasal preparation before nasotracheal intubation.

비만한 성인남성의 음주 및 식이습관의 특성연구 (The Case Study of Alcohol & Food Habits in Obese Adult Men)

  • 이명종;이영준
    • 한방비만학회지
    • /
    • 제2권1호
    • /
    • pp.53-61
    • /
    • 2002
  • Objective: Obesity is closely related to several factors such as genetic factors, energy intake and energy expenditure. It was said that alcohol & food habits were important to formation of obesity. The purpose of this study are to find out the alcohol & food habitual characteristic of obese adult men and to promote the health of these men. Method: From May, 2000 to November, 2001, We collected 75 eases obese patients, who visited to the Health Examination Center Dept. of Kangnam oriental medicine hospital, Dongguk University who took the health examination, and control group who were matched by age and sex. We investigated the alcohol & food habits by questionnaire. Results and Conclusions: 1. The patients over BMI 25 were in excess of the standard of obesity such as Modified Broca $^{\circ}{{\O}}s$ Index. Percent Body Fat, Abdominal Fat Distribution. But, the patients below BMI 20 were normal range of obesity degree. 2. Abdominal Fat Distribution was increased according to age and physical activity was decreased in obese group. 3. The mean of total calory by alcohol in a month was 4324.6kcal in obese group while control group was 2206.8kcal. 4. In the comparison of food habit, obese group is higher than control group in 7 articles of the 13 articles which influenced obesity.

  • PDF