• Title/Summary/Keyword: Good-bad

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THE EFFECT OF FORMATION OF PAPER FROM EUCALYPTUS CHEMIMECHANICAL PULP ON PRINTABILITY

  • Kai-Tang HU;Guo-Min TAN;Qi-Rong FU;Nam-Soek CHO
    • 한국펄프종이공학회:학술대회논문집
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    • 한국펄프종이공학회 1999년도 Pre-symposium of the 10th ISWPC Recent Advances in Paper Science and Technology
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    • pp.394-397
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    • 1999
  • The relation between the paper formation analyzer by image process system and smoothness, compressibility uniform of ink absorption is studied. There results indicate that the paper with bad formation has higher apparent bulk than the paper with good formation. The bad formation of paper results in the nonuniform calendering and decrease of the compressibility. The bad formation of paper also results in deformation and omission of printing dots, which affects the reproduction of the printing images.

화학 가스센서를 활용한 구취측정 방법에 관한 연구 (A Study on the Measurement of Halitosis of Human Mouth with Chemical Gas Sensor Arrays)

  • 이석준;김선태;김한수
    • 센서학회지
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    • 제20권4호
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    • pp.279-285
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    • 2011
  • This study was carried out to apply chemical gas sensors for the identification of bad breath which is one of the important sensitive problem for the humans' daily life. Seven sensors, including five semiconductor sensors and two electrochemical sensors, were tested for the three panels three times in several conditions. The results showed that the reproducibility of sensors were generally good, and electrochemical sensors showed better reproducibility while semiconductor sensors showed better sensitivity. No rinsing before measurement showed relatively better results in terms of both sensitivity and reproducibility. Semiconductor gas sensors for hydrogen sulfide shows the highest sensitivity, and it was recommended to use the odor-free bag for the measurement of bad breath.

Mining Association Rules of Credit Card Delinquency of Bank Customers in Large Databases

  • Lee, Young-chan;Shin, Soo-il
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2003년도 Proceeding
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    • pp.149-154
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    • 2003
  • Credit scoring system (CSS) starts from an analysis of delinquency trend of each individual or industry. This paper conducts a research on credit card delinquency of bank customers as a preliminary step for building effective credit scoring system to prevent excess loan or bad credit status. To serve this purpose, we use association rules that ore generating method. Specifically, we generate sets of rules of customers who are in bad credit status because of delinquency by using association rules. We expect that the sets of rules generated by association rules could act as an estimator of good or bad credit status classifier.

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계측기오차 보상을 위한 압축한계 설정에 관한 연구 (Research of Determining the Compressed Gauge Limit Compensating for Guage Error)

  • 이종성;고숭호
    • 산업기술연구
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    • 제22권B호
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    • pp.89-93
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    • 2002
  • When testing products before shipment to the customer, quality characteristics are measured to decide whether or not their values are between the specification limits. Unfortunately, this testing procedure can lead to incorrect decisions because of gauge error. That is, good products can erroneously be qualified as bad, and bad products as good, and this has consequences for producer's and consumer's risk. In cases of such as this, the compressed gauge limit can be used to achieve the desired product quality level dictated by the manufacturer or the customer. A compressed gauge limit is a limit set by the manufacturer on a test gauge that is tighter than the specification limit established by the customer. The compressed gauge limits should be set at levels to achieve the defect levels desired by the customer and simultaneously minimize the loss of good product that is rejected due to errors in the gauges. In this article, the models for determining the defect levels and the losses obtained by adding compressed gauge limits will be developed. A response surface model approach is utilized which allows an optimal operating condition to be generated relatively easily.

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유전자 알고리즘을 이용한 적응 퍼지 제어 시스템의 새로운 방법 (A New Method of Adaptive Fuzzy Control System Using Genetic Algorithms)

  • 장원빈;김동일;권기호
    • 전자공학회논문지CI
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    • 제38권2호
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    • pp.9-15
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    • 2001
  • 본 논문은 적응 피지 제어 시스템에 있어 유전자 알고리즘에 대한 새로운 방법을 제안한다. 다중개체군 유전자 알고리즘을 이용한 이전의 논문은 염색체를 두부분(제어규칙과 소속함수)으로 분할하였다. 그러나 이런 경우 좋지 못한 제어규칙은 좋은 제어규칙과 잘 진화된 소속함수의 최적화를 방해한다. 다중개체군 유전자 알고리즘에 대한 새로운 방법은 염색체를 세부분(좋은 제어규칙, 좋지 못한 제어규칙 및 소속함수)으로 분할하는 것이다. 이 방법에 대한 효율성을 입증하기 위해 트럭 배킹 문제에 적용하였다. 시뮬레이션 결과 다중개체군 유전자 알고리즘에 대한 제안된 방법이 좋은 적응성을 보여 주었다.

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Capacity Analysis of Internet Protocol Television (IPTV) over IEEE 802.11ac Wireless Local Area Networks (WLANs)

  • Virdi, Chander Kant;Shah, Zawar;Levula, Andrew;Ullah, Imdad
    • International Journal of Computer Science & Network Security
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    • 제22권2호
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    • pp.327-333
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    • 2022
  • Internet Protocol Television (IPTV) has emerged as a personal entertainment source for home users. Streaming IPTV content over a wireless medium with good Quality of Service (QoS) can be a challenging task as IPTV content requires more bandwidth and Wireless Local Area Networks (WLANs) are susceptible to packet loss, delay and jitter. This research presents the capacity of IPTV using User Datagram Protocol (UDP) and TCP Friendly Rate Control (TFRC) over IEEE 802.11ac WLANs in good and bad network conditions. Experimental results show that in good network conditions, UDP and TFRC could accommodate a maximum of 78 and 75 Standard Definition Television (SDTV) users, respectively. In contrast, 15 and 11 High-Definition Television (HDTV) users were supported by UDP and TFRC, respectively. Performance of UDP and TFRC was identical in bad network conditions and same number of SDTV and HDTV users were supported by TFRC and UDP. With background Transmission Control Protocol (TCP) traffic, both UDP and TFRC can support nearly the same number of SDTV users. It was found that TFRC can co-exist fairly with TCP by giving more throughput to TCP unlike UDP.

운전스트레스 대처방식에 따른 교통사고 위험의 변화 (The Change of Traffic Accident Risk Degree by Driving Stress Coping Patterns)

  • 이순열 ;이순철
    • 한국심리학회지 : 문화 및 사회문제
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    • 제15권3호
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    • pp.431-446
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    • 2009
  • 본 연구는 운전자들의 운전스트레스 대처방식이 교통사고 발생위험에 어떠한 영향을 미치는지를 알아보고자 실시되었다. 이 목적을 위하여 전국 5개 지역의 372명의 운전자들에게 64개로 구성된 운전스트레스 대처행동 척도 예비문항을 실시한 후 요인분석을 한 결과, 2개(순행적, 역행적)의 요인으로 구성된 총 24개 문항의 운전스트레스 대처행동 척도(DS-CBS)가 개발되었다. 이들 요인에 대한 신뢰도는 모두 .90 이상으로 높게 나타났다. 타당화 연구를 위해서 운전스트레스 대처행동 척도(DS-CBS)와 운전자 대처 질문지(DCQ), 그리고 운전자의 위험한 운전행동(음주운전, 과속운전, 법규위반, 피해사고, 가해사고)과의 상관관계 분석을 실시하였다. 상관관계 분석결과 운전스트레스 대처행동 척도(DS-CBS)는 운전자 대처 질문지(DCQ)와 운전자의 위험한 운전행동에서 유의한 상관관계가 있는 것으로 나타났다. 또한 운전스트레스 대처행동 척도(DS-CBQ)의 순행적 요인과 역행적 요인이 교통사고 발생위험(아차사고, 주변평가 사고위험, 자기평가 사고위험)에 어떠한 영향을 미치는지 알아보기 위하여 구조방정식 모형분석을 실시하였다. 분석결과 순행적 요인과 역행적 요인이 교통사고 발생위험으로 향하는 구조방정식 모형은 적절한 적합도 지수를 보였다. 경로들의 영향관계에서 순행적 요인은 교통사고 발생위험을 유의하게 낮추지만, 역행적 요인은 교통사고 발생위험을 유의하게 높이는 것으로 나타났다.

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일부 치위생과 학생들의 직업가치관 (A Study on the Types of Work Values of the Dental Hygiene Students)

  • 이향님;심형순
    • 치위생과학회지
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    • 제7권2호
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    • pp.107-112
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    • 2007
  • 치위생과 학생들의 치위생 활동과정이나 결과 중에서 중요하게 생각하는 부분을 파악하고 유형화하여 취업지도의 기초자료로 사용코자 광주 전남지역에 개설된 3개 대학 치위생과 재학생을 대상으로 설문 조사한 결과 다음과 같은 결론을 얻었다. 1. 48개로 문항으로 구성된 설문결과 6개 유형으로 직업가치관이 조사되었다. 지위, 보수, 안정, 능력, 기여, 성취로 구분되었고 59.2%의 설명력을 가지고 있었다. 2. 지위요인은 C학교에서, 기타 출신고교에서, 대인관계가 좋을수록, 건강상태가 나쁠수록, 직장경험이 있을수록, 진학권유를 하겠다고 응답한 군에서 의미있게 높았다(p < 0.05). 3. 보수요인은 C학교에서, 저학년일수록, 기타 출신고교에서, 기타방법으로 학비를 조달하는 군에서, 대인관계 및 건강상태가 좋을수록, 직장경험이 있을수록, 진학 권유를 하겠다고 응답한 군에서 의미있게 높았다(p < 0.05). 4. 안정요인은 C학교에서, 저학년일수록, 연령이 낮을수록, 기타 출신고교에서, 직장경험이 있을수록, 진학 권유를 하겠다고 응답한 군에서 높았다(p < 0.05). 5. 능력요인은 C학교에서, 기타 출신고교에서, 대인관계가 좋을수록, 건강상태가 나쁠수록, 직장경험이 있을수록, 진학권유를 하겠다고 응답한 군에서 높았다(p < 0.05). 6. 기여요인은 C학교에서 학년이 낮을수록, 기타 출신고교에서, 장학금으로 학비를 조달하는 군에서, 대인관계를 모르겠다고 응답한 군에서, 건강상태가 나쁠수록, 직장경험이 있을수록, 진학 권유를 하겠다고 응답한 군에서 높았다(p < 0.05). 7. 성취요인은 C학교에서 기타 출신고교에서, 대인관계가 좋은 군에서, 건강상태가 좋을수록, 진학 권유를 하겠다고 응답한 군에서 의미있게 높았다(p < 0.05).

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Preferences of Malaysian Cancer Patients in Communication of Bad News

  • Eng, Tan Chai;Yaakup, Hayati;Shah, Shamsul Azhar;Jaffar, Aida;Omar, Khairani
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권6호
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    • pp.2749-2752
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    • 2012
  • Background: Breaking bad news to cancer patients is a delicate and challenging task for most doctors. Better understanding of patients' preferences in breaking bad news can guide doctors in performing this task. Objectives: This study aimed to describe the preferences of Malaysian cancer patients regarding the communication of bad news. Methodology: This was a cross-sectional study conducted in the Oncology clinic of a tertiary teaching hospital. Two hundred adult cancer patients were recruited via purposive quota sampling. They were required to complete the Malay language version of the Measure of Patients' Preferences (MPP-BM) with minimal researcher assistance. Their responses were analysed using descriptive statistics. Association between demographic characteristics and domain scores were tested using non-parametric statistical tests. Results: Nine items were rated by the patients as essential: "Doctor is honest about the severity of my condition", "Doctor describing my treatment options in detail", "Doctor telling me best treatment options", Doctor letting me know all of the different treatment options", "Doctor being up to date on research on my type of cancer", "Doctor telling me news directly", "Being given detailed info about results of medical tests", "Being told in person", and "Having doctor offer hope about my condition". All these items had median scores of 5/5 (IQR:4-5). The median scores for the three domains were: "Content and Facilitation" 74/85, "Emotional Support" 23/30 and "Structural and Informational Support" 31/40. Ethnicity was found to be significantly associated with scores for "Content and Facilitation" and "Emotional Support". Educational status was significantly associated with scores for "Structural and Informational Support". Conclusion: Malaysian cancer patients appreciate the ability of the doctor to provide adequate information using good communication skills during the process of breaking bad news. Provision of emotional support, structural support and informational support were also highly appreciated.

부산지역(釜山地域) 치과기공소운영자(齒科技工所運營子)의 전문대학(專門大學) 치과기공과출신(齒科技工科出身) 치과기공사(齒科技工士)에 관(關)한 만족도(滿足度) 조사(調査) (A Study on Satisfactory degree of Dental Laboratory Heads about Dental Technician Who Graduated from Junior College in Pusan)

  • 이명곤
    • 대한치과기공학회지
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    • 제10권1호
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    • pp.55-66
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    • 1988
  • The great sudden change of circle of dental laboratory technology brought many discord between the new growing environmental group and the old group. In order to know the satisfactory degree of Dental Laboratory Heads about all and woman dental technicians who graduated from junior college, this study was conducted for 41 dental laboratory heads in Pusan area during Aug. to Sep. 1986 by means of a questionaire. The results are obtained as follows : 1. By born place, the dental laboratory heads’ satisfactory degree mean of items about all dental technician who graduated from junior college were Pusan group 3.55, Kyungnam group 2.94. The difference among the groups was significant enough(P<0.05). The satisfactory degree about woman dental technician graduated from junior college were Pusan group 3.45, Kyungnam group 2.72. 2. By age, The degree of satisfaction of items about all graduate dental technician were 30$\sim$34 age group 3.13, 40$\sim$44 age group 2.71. The degree of satisfaction about woman graduate dental technician were 30$\sim$34 age group 3.13, 40$\sim$44 age group 2.71. The degree of satisfaction about woman graduate dental technician were as follow : 35$\sim$39 age group 3.50, 45$\sim$49 age group 3.16, 30$\sim$34 age group 2.86, 40$\sim$44 age group 2.43. 3. By job career, the highest degree item out of satisfaction about all graduate dental technician was 6$\sim$10 years group 3.58, the other items were 1$\sim$15 years group 2.90, 16$\sim$20 years group 2.71. The satisfactory degree item about woman graduate dental technician was 6$\sim$10 years group 3.43, 16$\sim$20 years group 3.15, 11$\sim$15 years group 2.82 respectively. 4. By managing term of respondents’ dental laboratory, the satisfactory degree of items about all graduate dental technician were below 2 years group 3.25, 3$\sim$6 years group 3.14, 7$\sim$10 years group 2.93 in order. The satisfactory degree items about woman graduate dental technician were 11$\sim$14 years group 3.25, 3$\sim$6 years group 3.14 7$\sim$10 years group 2.80 in order. 5. By acquired qualification of licence test, the satisfactory degree of dental laboratory heads about all graduate dental technician were job career group 3.07, graduated from Dept. of Dental Technology group 3.00. The satisfactory degree about woman graduate dental technician were job career group 3.03 and graduated from Dept. of Dental Technology group 2.57. 6. By dental technician numbers of respondents’ dental laboratory. the satisfactory degree of items was as follow: 10$\sim$13 persons group is 2.86, 6$\sim$9 persons group 3.25, below 5 persons group 3.11. There was significant enough.(P<0.01). The satisfactory degree items about woman graduate dental technician were below 5 persons group is 3.00, 10$\sim$13 persons group 2.79, 6$\sim$9 persons group 2.67. 7. by the outlook of occupation, the satisfactory degree of dental laboratory heads about all dental technicians who graduated from junior college were neither good norbad group 3.20 bad group 2.59, good group 3.13. The difference among the groups was significant enough(P<0.01). The satisfactory degree about woman dental technicains graduated from junior college were good group 3.25, neither good nor bad group 2.80, bad group 2.75. The difference among the groups was significant enough.(P<0.01) 8. By occupational satisfaction, The satisfactory degree of items about all graduate dental technician were neither satisfied nor dissatisfied group 3.08, satisfied group 3.17, dissatisfied group 2.89. The satisfactional degree of items about woman graduate dental technician were satisfied group and neither satisfied mor dissatisfied group each 3.00 9. By the outlook of employment, the satisfactory degree of items about all graduate dental techician were bad group and neither good nor bad group 3.00. There was significant enough.(p<0.02) About woman graduate dental technician were good group 3.80, neither good nor bad group 3.00, bad group 2.84. The difference among the groups was significant enough.(P<0.01) 10. By cognition of the number of graduate dental technician, the satisfactory degree of dental laboratory heads about all graduate dantal technician were too many group 2.86, many group 3.32. There was significant enough.(P<0.05) About woman graduate dental techician were too many group 2.60, many group 3.20 The difference among the groups was significant enough.(P<0.01) 11. As compared with the items ut of satisfaction and improvement about all dental technician who graduated from junior college, the rate of satisfaction item was for as follow : dental technological theory is 5.21%, ability of adaptation and sincerity each 17.1%. The rate of improvement items was as follow : sincerity is 39%, ability of work and ability of basical work each 24.4%. 12. As compared with the items out of satisfaction and improvement about woman dental laboratory technician who graduated from junior college, the rate of satisfaction item was as follow : atmosphere of the office is 56.1%, sincerity 22%. The rate of improvement items was as follow : ability of adaptation is 36.6%, ability of work 31.7%.

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