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Intelligent Seat Model for Correction of Driver`s Posture while Driving using Logistic Regression
Heum Park,Changbum Lee,Chang Min Park 한국정보통신학회 2018 2016 INTERNATIONAL CONFERENCE Vol.10 No.1
This paper presents an intelligent seat model for correction of driver’s posture while driving using logistic regression algorithm. For good driver’s postures, it adjusts seat height, seat angle, head height, back of knees, distances of foot pedals, tilt of seat, etc. for each driver. There have been some studies on correction of good posture, effects of driving environment on driver’s posture, and sitting strategies based on seating pressure distribution and estimation of driver’s standard postures. However, there are a few studies on correction of driver’s postures while driving for problem of the postures using machine learning algorithm. Therefore, we suggest an intelligent seat model for correction of driver’s posture based on logistic regression using the system developed with C-type piezoelectric effect elements to get the postures. First, we collect the piezoelectric values from 37 drivers and 17 types of cars from the system, second, define 4 types of good postures while driving for labels, and third, analyze the postures for test data using logistic regression algorithm. As the results, we can guide good postures for bad or problems of postures while driving.
Photon-beam-position-monitor in PLS Diagnostic Beamline
Kim, Changbum,Yoon, Jong Chel,Kim, Seung-nam,Kim, Myong-jin,Kim, Hee Seob,Ryu, Chun Kil,Lee, Chae-soon,Seo, In Deuk,Park, Chongdo,Lee, Hae Cheol,Hong, Man-soo,Huang, Jung-Yun,Han, Yeongjin,Park, Jaehu Korean Physical Society 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.6
Test and Simulation for the Response of PLS-II Button Type Beam Position Monitor
Lee, Sojeong,Hong, Juho,Ko, In Soo,Kim, Changbum,Kim, Do Tae,Park, Hong Jib,Lee, Eun Hee,Lee, Jin Won,Kim, Seunhwan,Park, Yong-jung,Park, Sung-Ju Korean Physical Society 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.2
Beam Position Monitor for PLS-II
Hong, Juho,Lee, Sojeong,Ko, In Soo,Kim, Changbum,Kim, Do Tae,Park, Hong Jip,Lee, Eun Hee,Lee, Jin Won,Kim, Seunghwan,Park, Yong-jung,Park, Sung-Ju Korean Physical Society 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.2
<P>A button-type beam position monitor (BPM) has been designed and fabricated for the upgraded Pohang Light Source. The BPM consists of four buttons located symmetrically at top and bottom of the vacuum chamber. In the process of simulation, the Wakefield Simulator of CST Particle Studio is mainly used as the tool to calculate the wakefields and the electromagnetic fields. The BPM is tested by using a test stand to check its performance before installation. The calibration of BPM is also performed to check its position offsets and its sensitivities.</P>
성인병에 대한 한방치료법(증치의학과 사상의학)에 관한 연구 : 고혈압에 대한 한방치료법(중치의학과 사상의학)에 관한 연구
박동일,김영균,안창범,이인선,김종원,권정남,장경전,이인선,이성근,장용우,신영민 동의대학교 한의학연구소 1999 동의한의연구 Vol.3 No.-
We had a result of the treatment as below when is devided Korean medicine Tx.. Western medical Tx., Cooperative Tx.. 1) At the improvement of BP control, an average in Korean medicine Tx. (from 170㎜Hg/100㎜Hg to 150㎜Hg/90㎜Hg), an average in Western medical Tr. (from 170㎜Hg/100㎜Hg to 130㎜Hg/80㎜Hg), an average in Cooperative Tx.(from 180㎜Hg/110㎜Hg to 130㎜Hg/90㎜Hg), generally all pars had improvements of BP control. But it is not significant of each case. 2) At the improvement of symptoms by the apologetics, Cooperative Tx. is profitable in cases of 'GanHwa',' DamEum', 'EumYangYangHer', 'EumHer'. Korean medicine Tx. is superior in case of 'GiChe'. 3) At the improvement of symptoms by a questionnaire, Korean medical Tx., Western medical Tx., Cooperative Tx. groups had improvements, but each practice group didn't have specific significance. Only it was somewhat profitable to Korean medical Tx. in the 210㎜Hg/110㎜Hg, Western medical Tx. in the 180㎜Hg/110㎜Hg, Cooperative Tx, in the 170㎜Hg/90㎜ Hg. 4) There are the apparent improvements in patients whose BP are over 200㎜Hg of Korean medical Tx. group, whose BP are over 190㎜Hg of Western medical Tx. group and whose BP are over 170㎜Mg of Cooperative Tx. group. There are the improvement of diastolic BP in 110㎜Mg(Korean medical Tx., Western medical Tx.) and 90㎜Hg(Cooperative Tx.). 5) At the improvement of Pulse pressure, generally Pulse pressure are decreased. There are similar improvements in all of Korean medical Tx., Western medical Tx., and Cooperative Tx.. 6) At the Symptomatic approvement according to ages, Korean medical Tx., Cooperative Tx. are somewhat good for his twentieth, and Western medical Tx. is somewhat good for his forties. 7) the correlation of Obesity-grade and BP, as Obesity-grade is higher as BP is higher, but there are no similarity in the improvement. 8) At the EAV improvements, as examination into correlation with the point of 1~3th, we could get results as below. There are high improvements of DRHTM, DRALM, DLLYM, DLLIM in Cooperative Tx. There are high improvements of DRPASI, DLLARI in the Korean medical Tx. group. There are high improvements of DRFADM in Western medical Tx. group.
황사농도 단기예측모델의 PM10 농도와 실측 PM10 농도의 비교
조창범(Changbum Cho),전영신(Youngsin Chun),구본양(Bonyang Ku),박순웅(Soon-Ung Park),이상삼(Sang-Sam Lee),정연앙(Yun-Ang Chung) 한국기상학회 2007 대기 Vol.17 No.1
Simulation results of Asian Dust Aerosol Model (ADAM) for the period of April 7-9, 2006 were analyzed, comparing with observed PM10 data. ADAM simulated around ten times lower than on-site PM10 concentration in the source regions: Zhurihe, Tongliao, Yushe, Dalian and Huimin. As the result of this low concentration, transported amounts of Asian Dust were under-estimated as well. In order to quantify a forecasting accuracy, Bias and RMSE were calculated. Even though remarkably negative Biases and high RMSEs were observed, ADAM simulation had followed well up the time of dust outbreak and a transported path. However, the emission process to generate dust from source regions requires a great enhancement. The PM10 concentration at the surface reached up to 2,300 ㎍ m?³ at Baeknyoungdo and Seoul (Mt. Gwanak), up to 1,750 ㎍ m?³ at KGAWO about 18:00 LST in April 8, respectively; however, ADAM did not simulate the same result on its second peak. It is considered that traveling Asian dust might have been lagged over the Korean peninsula by the blocking of surface high pressure. Moreover, the current RDAPS's 30 km grid resolution (which ADAM adopts as the meteorological input data) might not adequately represent small-scale atmospheric motions below planetary boundary layer.
이창범,박성원 영산대학교 2002 영산논총 Vol.10 No.-
In this paper, we present an input-buffered ATM switch architecture based on Multistage Interconnection Networks. The proposed scheme can solve the problem which limits the maximum throughput to about 58.6% under uniform traffic because of the HOL(head-of-line) blocking, and then proposes the scheme to give multiple paths of the banyan network. The result of performance evaluation by simulation shows that the proposed scheme has a good throughput and cell loss rate. In addition, the level of throughput is maintained with acceptable cell delay even though the number of faulty components increases.