• Title/Summary/Keyword: Blind Control

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A study on walking algorithm of quadruped robot used stroke control method in the irregular terrain (비평탄 지형에서 스토로크 제어법을 이용한 4족 로봇의 보행 알고리즘에 관한 연구)

  • Ahn, Young-Myung
    • 전자공학회논문지 IE
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    • v.43 no.4
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    • pp.52-59
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    • 2006
  • Walking robot is able to move in regular or irregular terrain. It can walk that change adaptive algorithms according to the terrain. Existing papers about adaptive gaits of blind robot are based on intelligent foothold selection. However, this paper proposes a algerian that is based on the variations of stroke and period to adapt the irregular terrain. If thus adaptive algorithms is used, robot can maintain periodic gait walking and constant speed using only force sensor even in the irregular terrain without external sophisticated sensor. In this paper Quadruped robot with 2 DOF in each leg, is walk experiment with the wave gait in regular and irregular terrain. So the adaptive algorithm is proved useful through walk experiment.

Pain Control after Dental Surgery: Myprodol Versus Ibuprofen Versus Codeine (치과 수술후의 통증 관리: Myprodol 대 Ibuprofen 대 Codeine)

  • Han, Tae-Hyung;Shin, Byung-Seop;Kim, Jeong-Hye
    • The Korean Journal of Pain
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    • v.11 no.1
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    • pp.74-80
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    • 1998
  • Background: Myprodol, a newly introduced combination analgesics with codeine, ibuprofen and paracetamol was evaluated in the dental surgery patients for its efficacy and side effects. Methods: Total 60 ASA I or II outpatients dental surgical patients were randomly assigned into three groups(n=20 each). After various oral procedures, one of three oral analgesics, myprodol, ibuprofen or codeine, was prescribed to each patients in double blind fashion for three days. Each patient was followed carefully by daily phone calls for verbal analog pain scale, side effects and patient's satisfaction level. Results: Demographic data and duration of surgery revealed no statistical differences in all three groups. Myprodol group showed better verbal analgesic scores consistently for the study period than ibuprofen or codeine group. Adverse effects were minimal. Patients' satisfaction level was high in all three groups. Conclusion: We conclude that myprodol is an excellent oral analgesic for day-surgery based dental procedure patients. This effect appears to be synergistic among different analgesics rather than additive.

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Morphological and Genetic Variation of Two Populations of Platichthys stellatus (Pleuronectidae, PISCES) from the East Sea (동해 강도다리(Platichthys stellatus) 2개체군의 형태 및 분자변이)

  • Jeong, Yong Tae;Baek, Hea Ja;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.47 no.1
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    • pp.52-58
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    • 2014
  • Morphological and genetic variation of two populations of Platichthys stellatus were investigated based on 30 individuals each, collected from Uljin (seedling release area) and Pohang (control) in Korea. Morphological analyses demonstrated that the two populations of P. stellatus were well distinguishable in body color of the blind side and fin shape. Mitochondrial DNA control region analysis indicated no significant differences between the two populations ($F_{ST}=-0.00849$, P>0.05). We also analyzed microsatellite DNA loci of the two populations using six markers. Observed heterozygosity ($H_O$) and expected heterozygosity ($H_E$) were 0.550 and 0.592, respectively, in P. stellatus from Uljin, but 0.700 and 0.737 in P. stellatus from Pohang. An index of differentiation in genetic structure revealed significant differences between the two populations ($F_{ST}=0.0208$, P<0.05). Our results suggest that the Uljin population may be comprised of released P. stellatus, whereas the Pohang population may be wild P. stellatus, highlighting the necessity of continuous monitoring of the two populations.

Effects of Tai Chi Exercise Program on Physical Fitness, Fall related Perception and Health Status in Institutionalized Elders (타이치 운동프로그램이 시설노인의 체력, 낙상관련 지각 및 건강상태에 미치는 효과)

  • Liu, Ming-Ren;So, Hee-Young
    • Journal of Korean Academy of Nursing
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    • v.38 no.4
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    • pp.620-628
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    • 2008
  • Purpose: The purpose was to identify the effects of a Tai Chi exercise program on physical fitness, fall related perception and health status among institutionalized elderly. Methods: A quasi-experimental research was carried out with a nonequivalent control group pretest-posttest design. There were 23 subjects in the experimental group and 24 in the control group. The data was gathered by structured questionnaires about fall related perception, and health status. Physical fitness was measured by an exercise therapist with a blind principle. Results: At the completion of the 12 weeks Tai Chi exercise program, flexibility (F=4.50, p=.00), and ability to balance (F=3.27, p=.00) had increased significantly. Fall related perception showed significant improvement in the fear of falling (F=-3.52, p=.00). Physical functioning (F=3.38, p=.00), role limitation-physical (F=2.67, p=.01), role limitation-emotional (F=2.47, p=.02). and general health (F=3.88, p=.00) in health status showed significant differences between the two groups. Conclusion: The study findings revealed Tai Chi exercise as a useful nursing intervention for elderly that enhances flexibility and balance, decreases fall related perception and also increases the health status. Further research is warranted to compare the potential effects of Tai Chi exercise and its health benefits from other types of exercise or martial arts.

The Effect of Swiss Ball Exercise on Lower Extremity Function of Elderly Women with Mild Cognitive Impairment (스위스볼 운동이 경도인지장애 여성노인의 하지기능에 미치는 효과)

  • Shin, Hyung-Soo
    • Journal of the Korean Society of Physical Medicine
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    • v.6 no.2
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    • pp.119-126
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    • 2011
  • Purpose: The purpose of this study was to confirm whether the Swiss Ball exercise program is effective to improve lower extremity function and activity of daily living of elderly women with mild cognitive impairment (MCI). Methods: This study was a double blind control study. Subjects participated 34 female elderly women who were assigned to exercise group (n=17) and control group (n=17). The Swiss Ball exercise program was performed 2 times a week during the 12 weeks. Pre-and post-exercise various measurements were made: lower extremity function (OLS, TUG, STS). Results: In exercise group, There showed statically significance improve between pre-and post-exercise in OLS (7.29${\pm}$1.10 and 7.64${\pm}$1.32), TUG (10.47${\pm}$2.03 and 10.05${\pm}$2.04), STS (7.71${\pm}$1.04 and 7.94${\pm}$.82)(p<.05). ADL also showed statically significance improve between pre-and post-exercise (13.76${\pm}$3.54 and 12.82${\pm}$3.39, p<.05). There showed statically significance difference between two groups (p<.05). Conclusion: The Swiss Ball exercise program improved lower extremity function and ADL of elderly women with MCI. Further studies are required to examine the significance of the assessment of motor function of lower extremities.

Manhole Cover Detection from Natural Scene Based on Imaging Environment Perception

  • Liu, Haoting;Yan, Beibei;Wang, Wei;Li, Xin;Guo, Zhenhui
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.10
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    • pp.5095-5111
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    • 2019
  • A multi-rotor Unmanned Aerial Vehicle (UAV) system is developed to solve the manhole cover detection problem for the infrastructure maintenance in the suburbs of big city. The visible light sensor is employed to collect the ground image data and a series of image processing and machine learning methods are used to detect the manhole cover. First, the image enhancement technique is employed to improve the imaging effect of visible light camera. An imaging environment perception method is used to increase the computation robustness: the blind Image Quality Evaluation Metrics (IQEMs) are used to percept the imaging environment and select the images which have a high imaging definition for the following computation. Because of its excellent processing effect the adaptive Multiple Scale Retinex (MSR) is used to enhance the imaging quality. Second, the Single Shot multi-box Detector (SSD) method is utilized to identify the manhole cover for its stable processing effect. Third, the spatial coordinate of manhole cover is also estimated from the ground image. The practical applications have verified the outdoor environment adaptability of proposed algorithm and the target detection correctness of proposed system. The detection accuracy can reach 99% and the positioning accuracy is about 0.7 meters.

Effects of Spinal-Z in Patients with Gastroesophageal Cancer

  • Panahi, Yunes;Saadat, Alireza;Seifi, Maghsoud;Rajaee, Mahdi;Butler, Alexandra E.;Sahebkar, Amirhossein
    • Journal of Pharmacopuncture
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    • v.21 no.1
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    • pp.26-34
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    • 2018
  • Objective: The purpose of this study was to investigate the efficacy and safety of spinal-Z, derived from Peganum harmala seeds and Dracocephalum Kotschyi Boiss leaves, in patients with esophageal and stomach adenocarcinoma, and squamous cell carcinoma of the esophagus. Methods: Sixty-one patients with malignancies of the upper gastrointestinal tract were randomly assigned to one of two groups (treatment or control) in a double-blind fashion. Six capsules of Spinal-Z were prescribed to the patients with the regimen of 600 mg/m2/day, and placebo to the control group, for six months. Results: There were no significant differences between the two groups with regard to age, sex, duration of cancer, type of cancer and family history of cancer. There were significant differences in abdominal pain, heartburn, constipation and vomiting between the two groups, following spinal-Z therapy. Evaluation of drug side effects showed no difference in cough or other respiratory symptoms, itching, headache or dizziness between the two groups, both before and after treatment. Conclusion: This study indicates that Spinal-Z is safe and efficacious in the management of patients with upper gastrointestinal tract cancers.

A Study of Dress Prohibitions (채단에 대한 금제)

  • 전영숙
    • Journal of the Korean Home Economics Association
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    • v.11 no.2
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    • pp.147-165
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    • 1973
  • One of the characteristics of feudal society is the control of the dress and ornamentation which stand for various social classes and personal relationships. Throughout the Yi-Dynasty, certain forms of dress and ornamentation were controlled or prohibited by the government. For instance, there was a Ban on the use of gold and silver for ornaments and silks or satins for dresses, and the violator was subject to severe punishment according to the penal laws. This seems to have been done more for symbolism and the dignity of the various social ranks and powers than as an economic measure against foreign products. The use of yellow cloth, for instance, was once banned out of blind submission to the traditional practices in China, then the most powerful nation in Asia. The working classes were prohibited to use any silks of foreign production. This was done to discourage a spirit of wasteful luxury and the tendency to prefer the often higher quality foreign product. The government regulated the class of the traditional wedding ceremony, again as a means of both encouraging economy and reestablishing the distinctions between the classes. In spite of these attempts at control by the government a large trade in smuggled goods was still carried out. This had the effect of impeding the development of the clothing industry in the country.

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A Covariance Analysis Using the Kalman Filterings for Interrelationships Research between Sensor Signals of the Real Time Simulator of Launch Control System in the NARO Space Center (나로우주센터 발사관제시스템 실시간 발사관제 모의장치의 센서 신호간 연관성 해석을 위한 퍼지-칼만필터 공분산 분석)

  • Hong Il-Hee;Department of Electrical Engineering Chungnam National University Yang-MoKim
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.42 no.4 s.304
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    • pp.25-34
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    • 2005
  • We had research to conduct interrelationships between sensors using postprocessing analysis with the Fuzzy-Kalman Filtering Auto-Correlation about Real Time Simulator data of the NaroSC LCS in case of a fully blind situation scenario. The conducted interrelations are same harmony with relations in scenario. We had analyzed signals of sensors reverse-using a optimization character of Fuzzy-Kalman Filter. As our research conclusion, We had recognized possibilities of signal processing about the KSLV-1, on-board payloads, general equipments of ground support which apply to multi sensor systems.

Effect of Ondansetron combined with Dexamethasone on Postoperative Nausea & Vomiting and Pain of Patients with Laparoscopic Hysterectomy (Ondansetron과 Dexamethasone의 병합 투여가 복강경하 질식 전자궁 적출술 환자의 수술 후 오심 및 구토, 통증에 미치는 효과)

  • Nam, Mi-Ok;Yoon, Hae-Sang
    • Journal of Korean Academy of Nursing
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    • v.39 no.1
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    • pp.44-52
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    • 2009
  • Purpose: The purpose of this study was to compare the effects of ondansetron combined with dexamethasone on Post-Operative Nausea and Vomiting (PONV) and pain with ondansetron alone in patients with laparoscopy assisted vaginal hysterectomy under general anesthesia. Methods: Data were collected from April 1 through September 30, 2005 using a double blind method. Ondansetron 4 mg and dexamethasone 10 mg were administered to the experimental group (25 patients), and ondansetron 4 mg only to the control group (25 patients). The medications were administered through an intravenous line at the beginning peritoneum suture. PONV by Index of Nausea Vomiting and Retching (INVR), nausea by Visual Analogue Scale (VAS), and pain (VAS) were assessed at postoperative 1 hr, 3 hr, 6 hr, 24 hr, and 48 hr. Data were analyzed using repeated measures ANOVA, and Bonferroni methods. Results: The experimental group that received ondansetron combined with dexamethasone had less PONV (p=.048), and nausea (p=.012) than control group that received ondansetron alone. However, there was no difference in pain (p=.557) between the patients in the two groups. Conclusion: We conclude that the administration of ondansetron combined with dexamethasone is more effective than the administration of ondansetron alone to reduce PONV in patients with laparoscopic hysterectomy.