• International Journal of Control, Automation, and Systems
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• 제4권3호
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• pp.333-343
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• 2006

In this paper, the baseline-length information is directly modeled as a measurement for the Wald test, which speeds up the resolution convergence of the integer ambiguity of GPS carrier phase measurements. The convergent speed improvement is demonstrated using numerical simulation and real experiments. It is also shown that the integer ambiguities can be resolved using only four actual satellite measurements with very reasonable convergence speed, if the baseline-length information is used just like one additional observable satellite measurement. Finally, it is shown that the improvement of convergence speed of the Wald test is due to the increase of the probability ratio with the use of the baseline-length constraint.

• Journal of Periodontal and Implant Science
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• 제46권1호
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• pp.46-56
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• 2016

Purpose: We evaluated the efficacy of a mouthwash containing potassium nitrate ($KNO_3$) as its main component, along with sodium fluoride (NaF) and cetylpyridinium chloride (CPC). The primary endpoint was the relief of dentin hypersensitivity (DH) against the cold stimuli. The effects on other DH tests and periodontal inflammation were also evaluated. Methods: We used a single-center, double-blind, placebo-controlled, randomized design. A total of 82 patients with DH (40 in the test group, 42 placebo controls) were analyzed using visual analog scales (VASs) for a cold test, a tactile test, a compressive air test, and self-reported pain during daily activities, as well as clinical parameters including plaque index, gingival index, modified sulcular bleeding index (mSBI), gingival recession, and probing depth, which were collected at baseline and after four and six weeks of mouthwash use. Results: VAS scores for cold sensations, tactile sensations, the compressive air test, and self-reported pain significantly decreased from baseline during the six weeks in both groups (P<0.01), and no significant differences between the groups were found. In male patients (10 in the test group and 7 in the control group), both groups showed significant reductions in VAS scores for the cold test over the six weeks, and greater reductions were found in the test group than in the control group between four and six weeks (P=0.01) and between baseline and six weeks (P<0.01). In addition, the mSBI in the test group significantly decreased from baseline during the six weeks (P<0.01), and the changes at four and six weeks from baseline were significantly greater in the test group compared to the control group (P=0.03 and P=0.02, respectively). Conclusions: A mouthwash containing a mixture of $KNO_3$, NaF, and CPC reduced DH and gingival inflammation, however, the efficacy was comparable to the control group.

• 한국측량학회지
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• 제27권2호
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• pp.149-157
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• 2009

GPS측량에 있어서 GPS위성의 궤도정보는 측량정확도에 영향을 미치는 요소중의 하나이며, GPS측량을 위해 제공되는 위성궤도정보에는 방송력과 정밀력, IGS신속력과 IGS초신속력이 있다. 본 연구에서는 경상북도 울진지역에 연구대상지역을 선정하고 GPS관측을 실시하였으며, 74개의 기선에 대하여 TGO를 이용하여 방송력과 정밀력을 사용하여 기선해석을 실시하고 그 결과를 비교하였다. 비교결과 방송력과 정밀력에 의한 차이는 거의 없는 것으로 나타났으며, 기선길이의 상대정밀도에 있어서 방송력의 경우 0.708ppm, 정밀력의 경우 0.706ppm으로 나타나 정밀력을 사용한 결과가 약간 우수한 것으로 나타났다.

• 한국보건간호학회지
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• 제19권2호
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• pp.371-381
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• 2005

Purpose: The purpose of the study was to develop the day care program for the demented elders and to determine the effects of multiple activity therapies on the physical, emotional, cognitive, social function and physiological indicators of dementia elders in day care center. Method: A total of 13 elders with mild dementia in the data care center were participated. Manual and guideline of data care program was developed. Data care program was composed of movement/exercise, foot massage, music therapy, horticultural therapy, and art therapy. Data care program was performed by trained intervener for 32 weeks. Instruments were physical functioning such as hand grip strength., vital capacity, chiar stand test, sit and reach test, one leg standing, Berg' Balance scale, 6m Walk Velocity, stair climb, ADL, GDS-K, MMSE-K, Integrative Social Functioning Scale, cortisol, Ig A and Ig G. These were measured at the baseline, 16-week, and 32-week post-intervention by the trained nurses. Data were analyzed as Wilcoxon signed rank test. Results: For Hand grip, balance, and vital capacity, there was a significant difference between baseline and 16-week post-intervention(p<.05). For one leg standing, 6m velocity, there was a significant difference between 16-week post-intervention and 32-week post-intervention(p<.05). For Stair climb, there was a significant difference between baseline and 32-week post-intervention(p<.05). For depression and social functioning, there was no significant difference among baseline, 16-week, and 32-week post-intervention. For cognitive functioning, there was a significant difference between baseline and 32-week post intervention(p<.05). There was a significant difference of cortisol, and Ig G between baseline and 32-week post-intervention(p<.05). Conclusion: It would appear that physical fitness, functional performance, ADL, depression, social and cognitive functioning, and physiological indicator of community dwelling elders with dementia can be improved through day care program using multiple stimuli.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2000년도 추계학술대회논문집A
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• pp.153-158
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• 2000

Nuclear reactor pressure vessel should be safety even in the case that hypothetical defects with allowable size are in vessel. Therefore, the materials should have excellent fracture resistance characteristics. The purpose of this study is to analyze the results of preirradiation baseline test of nuclear pressure vessel for Yonggwang Unit 5/6. In experiments, drop weight tests and impact tests are carried out to obtain nil-ductility transition reference temperature, $RT_{NDT}$ and static and dynamic fracture toughness tests are performed to compare with $K_{IR}$ curve in accordance with ASME Sec.III. The test results show that the materials had sufficiently fracture resistance characteristics for 40 years of design life.

• PNF and Movement
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• 제10권1호
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• pp.43-52
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• 2012

Purpose : The purpose of this study was to observe the effect of a gait training using PNF on a gait and balance ability of a person with chronic stroke. Methods : The subject was left hemiplegia due to cerebral infarction. The subject participated in PNF gait training session as well as baseline for 30 minutes a day for 4 weeks. we used the 10-meter walking test(10MWT), figure-8-of walk test(F8WT), dynamic gait index(DGI) for measuring the gait ability and four square step test(FSST), Berg balance scale(BBS) for measuring the balance ability through the whole sessions. Results : The gait ability was enhanced compared to first baseline, as measured by 10MWT(27.3%), F8WT(36.6%), DGI(8 points increased). The balance ability was improved compared to first baseline, as measured by FSST(49.1%), BBS(10 points increased). The increase was maintained in second baseline session. Conclusion : The PNF gait training program is helpful to enhance the adaptation of the gait and balance according to the various environmental demands.

• Journal of Astronomy and Space Sciences
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• 제40권3호
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• pp.113-122
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• 2023

Although the Relative Global Navigation Satellite System (GNSS) positioning technique provides high accuracy, it has several drawbacks. The scarcity of control points, the long baselines, and using of ultra-rabid and rabid products increased position errors. This study has designed a New MATLAB Program that helps users automatically select suitable IGS stations related to the baseline lengths and the azimuth between GNSS points and IGS stations. This study presented criteria for the length of the baselines used in Egypt and an advanced estimated accuracy before starting the project. The experimental test studies the performance of the position accuracy related to the relation between three factors: observation session, final, rabid, and ultrarabid products, and the baseline lengths. Ground control point mediates Egypt was selected as a test point. Nine surrounding IGS stations were selected as reference stations, and the coordinates of the tested point were calculated based on them. Baselines between the tested point and the IGS stations were classified regarding proposal criteria. The coordinates of the tested point were obtained in different observation sessions (0.5, 1, 2, 4, 5, 6, 7, 7.5 h). The results indicated that the lengths of the baseline in Egypt were classified short (less than 600 km), medium (600-1,200 km), and long (greater than 1,200 km) and required a minimum observation time of 4, 5, and 7 h to obtain accuracy 10, 19, 48 mm sequentially. The position accuracy was superior for the rapid and the final than the ultra-rapid products by 16%. A short baseline was at the best case; there was a performance in position accuracy with a 57% deduction in observation time compared with the long baseline.

• Progress in Superconductivity
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• 제9권1호
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• pp.29-34
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• 2007

The baseline selection is the first and important step to analyze magnetocardiography (MCG) parameters. There are no difficulties to select the baseline between P- and Q-wave peak (P-Q interval) of MCG wave recorded from healthy subjects because the P-Q intervals of the healthy subjects do not much vary. However, patients with ischemic heart disease often show an unstable P-Q interval which does not seem to be appropriate for the baseline. In this case, T-P interval is alternatively recommended for the baseline. However, there has been no study on the difference made by the baseline selection. In this study, we studied the effect of the different baseline selection. MCG data were analyzed from twenty healthy subjects and twenty one patients whose baselines were alternatively selected in the T-P interval for their inappropriate P-Q interval. Paired T-test was used to compare two set of data. Fifteen parameters derived from the R-wave peak, the T-wave peak, and the period, $T_{max/3}{\sim}T_{max}$ were compared for the different baseline selection. As a result, most parameters did not show significant differences (p>0.05) except few parameters. Therefore, there will be no significant differences if anyone of two intervals were selected for the MCG baseline. However, for the consistent analysis, P-Q interval is strongly recommended for the baseline correction.

• Journal of applied mathematics & informatics
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• 제40권5_6호
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• pp.925-931
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• 2022

In this article, we compare the reliability and the hazard function between a baseline distribution and the corresponding transmuted-G distribution. Some examples based on existing transmuted-G distributions in literature are used. Three tests of parameter significance are utilized to test the importance of a transmuted-G distribution over the baseline distribution, and real data is used in an application of the inference about the importance of transmuted-G distributions.

• 신경치료
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• 제22권3호
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• pp.11-18
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• 2018

Purpose This study is to investigate the effect of sling exercise on the balance capacity of spastic diplegia cerebral palsy patient based on Bobath concept. Methods A single subject experiment was designed targeting an 8year old child with the rigid bilateral cerebral palsy. The static balance test used the 30 second Rombug test of BT4, and the dynamic balance test used the timed up and go test. Results In the 30second Rombug test of BT4, the child had a smaller median outcome than baseline and withdrawal period. In the TUG test, the walking speed in the intervention period was improved comparing to the baseline and withdrawal period. Conclusion The sling exercise based on the Bobath concept has been proved that it is an effective intervention to improve the static and dynamic balance capacity of patients with rigid bilateral cerebral palsy.