• 제목/요약/키워드: PRS

검색결과 208건 처리시간 0.03초

PRS를 이용한 제지공정의 인식 및 모델링에 관한 연구 (Modeling and Identification of Paper Plants based on PRS)

  • 오창훈;여영구;강홍
    • 한국펄프종이공학회:학술대회논문집
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    • 한국펄프종이공학회 2004년도 추계학술발표집
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    • pp.221-232
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    • 2004
  • Paper process is complex and multivariable system. Identification of a paper process model is imperative for the development of predictive control method. 13-level Pseudo-Random Sequence Signals were used to identify the plant model in which the neural network model was considered model as a real paper process. Results of simulations for identification using 13-level PRS signals and Prediction Error Method are compared with plant operation data. From the comparison, we can see that the dynamics of the model show good agreement with those of real plant.

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한국 성인의 해조류 섭취와 다유전자 위험 점수 간의 상호작용이 염증에 미치는 영향 (Effects of the interaction between seaweed consumption and the polygenic risk score on inflammation in Korean adults)

  • 홍가연;신다연
    • Journal of Nutrition and Health
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    • 제57권2호
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    • pp.211-227
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    • 2024
  • 본 연구에서는 해조류 섭취와 염증과 관련된 유전자의 변이 및 다유전자 위험 점수 간의 상호작용이 염증에 미치는 영향을 확인하였다. 남성과 여성 모두 PRS가 높은 그룹에서 염증 발생 위험은 증가하였다. 본 연구에서는 해조류의 섭취가 염증과 직접적인 관련이 있는 것으로 밝혀지지 않았지만, 해조류 섭취와 다유전자 위험 점수 변이 사이에선 통계적으로 유의한 결과를 보였다. 특히, 낮은 해조류의 섭취는 높은 다유전자 위험 점수를 가진 여성에서 고염증 발생 위험이 높았다. 따라서 본 연구결과는 한국인에게서 작용하는 염증 및 염증질환에 대한 유전자 소인을 파악할 수 있고 면역 체계의 균형 및 건강 유지에 새로운 중재방안을 제시할 수 있음을 기대한다.

The Effect of Partial Response Signaling Pulses under Wireless Communication Environments

  • Park, Won-Ho;Kong, Hyung-Yun
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1999년도 하계종합학술대회 논문집
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    • pp.57-60
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    • 1999
  • In many radio communication environments, there is a special component, called inter-symbol interference (ISI), mused by multipath time delay of signal and ISI components impose limitation of the data transmission rate. In this paper, we consider signaling pulse shapes, called partial response signaling (PRS), for minimizing the effect of ISI and show the improvement of performance by applying one of the partial-response signaling (PRS) pulses to two types of receiver system under dependent noise environments through the Monte-Carlo computer simulations.

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노르웨이 북극다산기지 주변에 형성된 일시적 담수지의 미세조류 및 Chlamydomonm 18S rDNA의 유전자 특성 (A Study on the Freshwater Algal Flora Occurring in Temporary Ponds around the Dasan Arctic Station, Ny-Alesund (Norway), and the Molecular Characteristics of Chlamydomonas 18S rDNA)

  • 기장서;강성호;정승원;박범수;한명수
    • Ocean and Polar Research
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    • 제28권2호
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    • pp.107-117
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    • 2006
  • Freshwater algal studies in North polar environments are relatively few. This study presented the algal-flora, -biomass and genetic features of dominant cells collected from temporary ponds around the Polar Research Station (PRS), Norway. Water samples were collected from 4 stations around PRS, and analyzed for their environmental and biological variables. Water temperature, salinity and conductivity ranged from 5 to $10^{\circ}C$, 0.1 to $0.3%_{\circ}$ and 0.21 to $0.36{\mu}S/cm$, respectively. Chlorophyll a concentration ranged from 1.8 to $11.1{\mu}g/l$, and that of the size-fractionated cells was recorded from 0.7 to $1.1{\mu}g/l$ in picoplankton 0.3 to $6.5{\mu}g/l$ in nanoplankton, and 0.4 to $3.9{\mu}g/l$ in microplankton respectively. Algal flora in the present study was recorded as 10 genera, in which Chlamydomonas, particularly, was dominant in all studied sites. By comparison of Chlamydomonas 18S rDNA sequences, including two isolates from PRS, they formed a distinct clade against others: sequence similarity was significantly low (<97.2%) with C. noctigama, being the highest score by BLAST search in GenBank. This study was valuable for basic knowledge regarding the freshwater algae around PRS and their genetic information.

퇴행성 슬관절염에서 Ketorolac의 관절강내 주사 효과 (Effects of Intra-articular Injection of Ketorolac in Degenerative Arthritis of Knee)

  • 김태형;안재석;박학수;임영진;이상철
    • The Korean Journal of Pain
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    • 제14권2호
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    • pp.214-217
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    • 2001
  • Background: Intra-articular injection is a commonly performed procedure in patients with degenerative osteoarthritis of the knee. Several drugs are used for relief of pain in such cases. Local anesthetics, clonidine and steroids have been confirmed to be effective when used in an intra-articular injection. Ketorolac has recently become one of the most commonly used and potent NSAIDs. There have been many studies about the effect of ketorolac. Methods: Sixty-four patients were divided into 2 groups. In Group I (n = 31), 0.5% bupivacaine 3 ml and sodium hyaluronate 20 mg were used and in Group II (n = 33), 0.5% bupivacaine 3 ml, sodium hyaluronate 20 mg and ketorolac 5 mg were used. We observed the pain relief scale (PRS) at 15 minutes, 1 week and 1-3 months after injection. Results: After 15 minutes, PRS scores were $6.6{\pm}2.7$ (Group I) and $5.1{\pm}3.1$ (Group II), so there was a statistical difference between the two groups. After 1 week, the PRS scores were $5.9{\pm}2.0$ (Group I) and $5.8{\pm}2.4$ (Group II). At 1-3 months later, PRS scores were $5.6{\pm}3.0$ (Group I) and $5.1{\pm}2.7$ (Group II). Thus, there were no significant statistical differences between the two groups at 1 week or 1-3 months later, although some patients were more satisfied with pain relief in Group II at 1-3 months. Conclusions: Ketorolac provides more rapid pain relief of degenerative arthritis when used in intra-articular injection. And there was no statistical difference of effect after 1 week or 1-3 months later. Further studies are required on the effect of the intra-articular use of ketorolac.

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급성기(急性期) 요통(腰痛)의 치료(治療)에 자락요법(刺絡療法)의 병행(竝行)이 미치는 영향(影響) (The Effect of the Treatment with Venesection on Treating Low Back Pain of Acute Stage)

  • 송형근;송민식;김정호;강재희;김영화;김영일;홍권의;이현;이환동
    • Journal of Acupuncture Research
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    • 제21권5호
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    • pp.113-122
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    • 2004
  • Objective : This study is designed in order to evaluate the therapeutic effect of venesection on acute low back pain. Methods : From Nov. 1st 2003 to Apr. 30th 2004, 40 cases of low back pain patients at acute stage were divided into 2 groups; one group(control group) took only acupuncture therapy, and the other group(test group) took acupuncture and venesection therapy. Pain rating score(PRS) was used to assess the pain for its intensity, frequency, duration, and aggravating factors. And visual analog scale(VAS) was used, too. PRS and VAS was checked twice, before the treatment and after the treatment. Treatment was done twice a day. Results : Both acupuncture therapy and acupuncture with venesection therapy showed good effect on low back pain of acute stage. And the latter group showed better effect on decreasing pain than former. It was proved by the difference between PRS and VAS checked before treatment and what checked after treatment. But it was not proved statistically. Conclusion : Only acupuncture and acupuncture with venesection can be recommended as a useful therapy to treat low back pain of acute stage.

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나이퀴스트 속도를 초과하는 제2종 부분응답 시스템의 설계 (Design of Class-II Partial-Response System above the Nyquist Rate)

  • 오용선
    • 한국정보통신학회논문지
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    • 제2권1호
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    • pp.27-35
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    • 1998
  • 본 논문에서는, 제2종 $(1+D)^2$ 부분응답 시스템의 대역제한 여파기를 원하는 전송속도에 따라 한정함으로써 향상된 대역효율을 얻을 수 있는 새로운 모델을 제안하였다. 전송시스뎀의 스펙트럼을 나이퀴스트 속도 초과량만큼 절단하는 모델을 설정하고, 그 제반 특성을 시간영역 및 주파수영역에서 해석하여 기존의 시스템과 비교하였다. 제안된 시스템은 나이퀴스트 속도 이상에서 동작할 때, 그 고유의 속도융통성으로 보상하는 기존의 시스템에 비하여 우수한 성능을 나타낸다. 특히, 이러한 특성은 이전에 해석되었던 제1종 및 제4종 부분응답 시스템에 비하여 매우 효과적이어서, 속도융통성으로 약 26.6%까지 보상할 수 있었던 기존의 초과량을 약 40% 이상으로 향상시킬 수 있음을 확인하였다. 이는, 제2종 부분응답 시스템의 전달함수로 주어지는 상승여현 스펙트럼이, 동일한 양의 스펙트럼 절단에 대하여 그 주파수 성분이나 에너지의 손실을 효과적으로 상쇄한다는 사실에 근거를 둔다. 이를 입증하기 위하여, 설정된 모델의 사이드로브 상쇄효과를 보여주는 시간영역 해석과 그 실측패턴을 제시하고, 대역효율의 증가에 따르는 눈 모양의 변화와 전송신호의 스펙트럼 특성을 실험적으로 확인하였다.

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키네시오 테이핑 요법과 상지 협응 운동이 견관절 근막동통증후군의 통증과 기능에 미치는 효과 (Effects of Kinesio Taping and Upper Coordination Exercises on Pain and Function of Shoulder Myofascial Pain Syndrome)

  • 송현승;김태원;박성두
    • 대한정형도수물리치료학회지
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    • 제26권2호
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    • pp.45-53
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    • 2020
  • Purpose: The purpose of this study was conducted to investigate the effects of kinesio taping and coordination exercise on the myofascial pain syndrome and shoulder function. Methods: The patients with myofascial pain syndrome were participated in this study and divided randomly 2 groups. Control group (n=22) was taken only physical therapy program. Experimental group (n=22) was taken physical therapy with Kinesio taping and coordination exercise. The Kinesio taping in experimental group applied on levator scapulae and supraspinatus. The coordination exercise performed in supine position and sitting position on 15 times during 10 seconds each positions. We measured the pain degree using visual analog scale (VAS), pain rating score (PRS), pressure pain threshold (PPT), myofascial pain subjects symptoms index and shoulder motor function using constant shoulder assessment scale; CSA before and after experiment. Results: The significant test of CSA, myofascial pain subjects symptoms index, VAS, PRS according to applying the Kinesio taping and coordination exercise between groups used ANCOVA. In the result following analysis, there was significance on VAS (F=13.071, p=.031), PRS (F=12.130, p=.014), PPT (F=7.378, p=.016), CSA (F=5.302, p=.026) between control group and experimental group. Conclusion: Then, Kinesio taping and coordination exercise has benefit on the VAS, PRS, PPT, CSA in patients with myofascial pain syndrome. So, it may suggest that Kinesio taping combined with coordination exercise will be helpful of the pain and shoulder function improvement the patients with myofascial pain syndrome.

한방 복합치료로 호전된 섬유근통 증후군 치료 1례 (One Case Report of Fibromyalgia Syndrome(FMS) Patient Improved by Korean Medical Combined Treatment)

  • 김민철;김성호
    • 대한한의학방제학회지
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    • 제20권1호
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    • pp.149-158
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    • 2012
  • Objectives : The purpose of this study is to evaluate the effect of oriental medical combined treatment on the fibromyalgia syndrome patient. Methods : Oriental medical combined treatment was administered during 3 weeks at 2 times admissions. The improvement of clinical symptom was evaluated by VAS(visual analogue scale), SF-MPQ(short form-McGill pain questionnarie) and PRS(pain rating scale), change of tender points. Results : After treatment, the patient's VAS score was reduced to 3-5, 4-5 point. First admission, there is no observable change in the SF-MPQ. But, Second admission, SF-MPQ score was reduced from 16 to 6. The PRS score was reduced from 72 to 24, from 75 to 48 respectively. Tender points was reduced generally. Conclusions : Oriental medical combined treatment for the fibromyalgia syndrome patient was effective. Although this case presented valuable result, further research is encouraged to confirm the effectiveness of this treatment with large number of patient.

부분응답신호에서 'Stop-and-Go' 알고리듬을 이용한 블라인드 적응 등화 (Blind Equalization Using a Decision-Directed Algorithm for Partial Response Signals)

  • 강민구;이영조;윤영우;홍대식;강창언
    • 한국통신학회논문지
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    • 제19권4호
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    • pp.597-604
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    • 1994
  • 본 논문은 “Stop-and-go"알고리듬을 부분응답시스템에 응용한 것이다. ”Stop-and-Go"알고리듬은 결정한 심볼에 관한 에러신호가 충분히 믿을만 한가를 판단하여 등화기에 간단한 깃발로 알려주어 등화 적응 과정을 멈추는 성질을 이용하는 것이다. 부분응답신호는 현재 수신되는 신호 레벨이 바로 전에 들어온 이웃 신호 레벨에 의해 가능한 레벨이 정해지는 레벨 천이 특성을 가지고 있다. 이 레벨 천이 특성을 이용하여 부분응답신호에 적합한 새로운 비선형 예측기를 제안하고, 컴퓨터 시뮬레이션을 통하여 제안한 비선형 예측기의 우수한 성능을 보인다.한 성능을 보인다.

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