• Journal of Physiology & Pathology in Korean Medicine
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• v.28 no.3
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• pp.271-279
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• 2014

Chronic prostatitis is a common disease among male. However, its cause and treatment are not known and it does easily come to the patients again after some treatment. Chinese has got an active research on chronic prostatitis of traditional Chinese medicine. We researched the Chinese publications from 2003 to 2013. After translating those publications, we analyzed total 64 publications by classifying those according to frequently used prescriptions, differentiation of symptoms, signs, addition and subtraction of each medicine and the quantity of frequently used medicines. Frequently used medicines were statistically analyzed. The prescription of chronic prostatitis was classified according to its stage. Paljeongsan(八正散) or Yongdamsagan-tang(龍膽瀉肝湯) was used during the early stage of chronic prostatitis, Sobokchukeo-tang(少腹逐瘀湯) or Hyeolbuchukeo-tang(血府逐瘀湯類) was used during the middle stage, and Jibaekjihwang-tang(知柏地黃湯) or Gyebujihwang-tang(桂附地黃湯) was used during the late stage. The most frequently used medicine was Phellodendri Cortex(黃柏), mentioned 43 times in the prescriptions. This analysis report would be able to provide the basis of taking a research on chronic prostatitis. In addition, it could be applied on a stereotype of chronic prostatitis as well as a variety of symptoms with frequently used prescription and addition and subtraction of each medicine.

• Journal of the Korean Society of Marine Environment & Safety
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• v.17 no.4
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• pp.307-314
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• 2011

This study proposed detection method of Marine debris using unmanned aerial photography. For unmanned aerial photography, a RC(Radio Control) helicopter which has good movability and economics was used. To a camera mounting, a gimbal equipment was attached to the bottom of the RC helicopter. The gimbal equipment is very useful because it is not seriously affected by vibration and rolling. In addition, we invented that digital image processing algorithm using Matlab program for detection of marine debris from photographs. Particularly, background subtraction in invented algorithm was applied. As a result, marine debris of a variety of forms from different sand states of coast were reliably detected. In the future, monitoring using proposed method was expected to contribute that the solution to representative problem of monitoring area selecting and estimate the total litter mass over the beach. Moreover, It is considered a greater application possibility to marine environmental observations.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.28B no.7
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• pp.520-534
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• 1991

This paper describes the design of an ALU and a shifter for RISC. The RISC datapath is designed to have a 4-stage pipeline and a 20 MHz operating frequency. The ALU makes use of the 32-bit BLC adder which has the characteristics of high speed ane regular structuer and executes the arithmetic instructions-addition and subtraction- and the logical instructions-AND, OR, and XOR. Additionally, multiplication is possible by iterative executions of step instructions to perform shift and add operations. The shifter is implemented by using the modified of funnel shifter. The shifter is able to perform the arithmetic andlogical shift instructions without maskiog. Moreover, it carries out data align operation which conforms to big endian byte address. The logical operation of the desinged ALU and the shifter were simulated using YSLOG and VLSIsim. SPICE simulation results using 1.2um double metal process parameters show that the ALU and shifter have a delay time of 15.9NS and 9.9NS, respectively. Therefore, the ALU and the shifter operates correctly above 20[ MHz ] click ferquency and are composed of about 7K and 15K teansistors, respectively.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.14 no.2
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• pp.1-8
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• 2001

We know paranasal sinusitis is one of the most common disease in the field of otolaryngology. Especially in the case of chronic paranasal sinusitis, patient is sufferred from recurrence. So we prescribed Bojungikgitang(補中益氣湯) to the patients who were suffered from chronic paranasal sinusitis, and we witness some noticeable improvement. Here are the findings of my experience 1. The addition and subtraction temperament drugs of Bojungikgitang(補中益氣湯加減方) are effective to the patient of chronic and feeble paranasal sinusitis by the effect of removing wind(祛風), unnecessary metabolite(祛痰), and draining pus(排膿) and strengthening digestive organs(健碑) and enriching the lung yin(益肺陰) and alleviation of pain(止痛). 2. In the symptom of chronic paranasal siunutitis, nasal obstruction, postnasal drip, sputum, headache were quick to disappear, and dysosmia, internasal polyp, etc got better slower. 3. The most quick improvement appeared within two weeks and most symptoms improved within one month, and disappeared within two months.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.26 no.7
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• pp.1288-1295
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• 2002

The column-type sensing element in building and mechanical construction parts was designed as three forces and three moments sensor by attaching strain gages approximately. Compared to conventional multi-component sensor, the designed sensor has high stiffness and low cost. The radius of the column was designed analytically and compared with finite element analysis. The interference errors between components were minimized by using addition and subtraction procedure of signals. The fabricated sensor was tested by using a deadweight force standard machine and a six-component force calibration machine. The calibration results showed that the 6-component forces and moments sensor had interference error less than 7.3 % between $F_x$ and $M_x$ components, and 5.0 % in case of other components.

• Proceedings of the KSME Conference
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• 2001.06a
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• pp.837-841
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• 2001

The column-type sensing element in building and mechanical construction parts was designed as three forces and three moments sensor by attaching strain gages approximately. Compared to conventional multi-component sensor, the designed sensor can solve the problem about low stiffness and high cost. The radius of the column was designed analytically and compared with finite element analysis. The coupling errors between components were minimized by using addition and subtraction procedure of signals. The fabricated sensor was tested by using a deadweight force standard machine and a six-component force calibration machine in Korea Research Institute of Standards and Science(KRISS). The calibration showed that the multi-component force/moment sensor had coupling error less than 19.8 % between $F_x$ and $M_y$ components, and 9.0 % in case of other components.

• Research in Mathematical Education
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• v.19 no.2
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• pp.89-100
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• 2015

The study investigated pre-service teachers' knowledge and computational skills by using Triangular Arithmagon. Participants included 90 pre-service teachers from two schools in the United States and Taiwan. The Triangular Arithmagons Test (TAT) was used to measure pre-service teachers' performance in whole number, fractions, and decimals operations (i.e., addition, subtraction, multiplication, and division), each of which included level-1 (basic) and level-2 (advanced) tests. MANOVA analysis was performed to compare the performance between teachers from the United States and Taiwan. Results indicated that overall, pre-service teachers in Taiwan outperformed those in the United States, especially on the advanced-level tests. Pre-service teachers in the United States were found to have poor ability of solving complex operation problems. Different curriculum plans and teaching methods may lead to the performance gap between the two countries.

• Journal of the Korean Institute of Intelligent Systems
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• v.15 no.6
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• pp.754-758
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• 2005

There have been several tipical methods being used tomeasure the fuzziness (entropy) of fuzzy sets. Pedrycz is the original motivation of this paper. Recently, Wang and Chiu [FSS103(1999) 443-455] and Pedrycz [FSS 64(1994) 21-30] showed the relationship(addition, subtraction, multiplication) between the entropies of the resultant fuzzy number and the original fuzzy numbers of same type. In this paper, using Lebesgue-Stieltjes integral, we generalize results of Wang and Chiu [FSS 103(1999) 443-455] concerning entropy arithmetic operations without the condition of same types of fuzzy numbers. And using this results and trade-off relationship between information energy and entropy, we study more properties of information energy of fuzzy numbers.

• East Asian mathematical journal
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• v.34 no.2
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• pp.85-101
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• 2018

The purpose of this paper is to investigate counting-based and collection-based computation of the elementary mathematics textbook in Korea and United States of America. As a results, we will provide some suggestive points through how to use and activity of number line, decomposing number, counting, grouping and so on by analyzing counting and collection-based computation in the elementary mathematics textbook of Korea and United States of America.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.21 no.5
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• pp.1345-1359
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• 1996

This paper presents a floating point arithmetic unit (FPAU) for supescalar microprocessor that executes fifteen operations such as addition, subtraction, data format converting, and compare operation using two pipelined arithmetic paths and new rounding and normalization scheme. By using two pipelined arithmetic paths, each aritchmetic operation can be assigned into appropriate arithmetic path which high speed operation is possible. The proposed normalization an rouding scheme enables the FPAU to execute roundig operation in parallel with normalization and to reduce timing delay of post-normalization. And by predicting leading one position of results using input operands, leading one detection(LOD) operation to normalize results in the conventional arithmetic unit can be eliminated. Because the FPAU can execuate fifteen single-precision or double-precision floating-point arithmetic operations through three-stage pipelined datapath and support IEEE standard 754, it has appropriate structure which can be ingegrated into superscalar microprocessor.