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      • 스포츠 政策의 國際比較硏究 : 3個國의 스포츠振興法을 통하여

        정길상,이강우 동국대학교 경주대학 1998 東國論集 Vol.17 No.1

        Sports are said to be like a mirror which reflects society. Also, sports are of universal culture in that sports are performed on the basis of Internationally common rules and at the same time of culture characterized with a much national, publicly common feature which has the ability to form or build human relations between the members of society. Accordingly, an internationally comparative study on sport policies as a supportive system has a significant meaning in respect that it promotes understanding between countries as well as internalization. For that reason internationally comparative study on sport policies is considered to be very useful in that the performance of it can be really used as reference and it can be applied to the policies of a certain country. So far, internationally comparative study on sport policies seem to have been at a descriptive level of comparatively studying each of cases respectively, and such studies are at a level of describing similarities and dissimilarities between two countries. However, a comparative study is necessary in the future to develop the framework and scale in order to build the universal principle and general theory based on the similarities and dissimilarities of the sport policies of each nation. Also, in internationally comparative study on sport policies, there should be no a ethnocentrism.The culture of sport systems in any of races, peoples, nations has a special value. Accordingly, the attitude of such a kind study may improve sport programs or heighten the efficiency of them, thereby achieving new development of them.

      • 산도가 가토의 자궁수축에 미치는 영향

        정택상,강길전 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.1

        The effecs of hydrogen ion concentration changes on the contractility as well as patterns of contraction to hormones were investigated in the isolated rabbit uterine muscles. Contractility was recorded on a Physiography with force transducer by means of Magnus method in sodium lacate Ringer's solution used were normal (pH 7.4), acidic (pH 6.3), and alkaline (pH 9.4), were titrated by 0. 01 N HCI or 0. 01 N NaOH solution respectively. Used hormones and its doses were 0.1ug/ml epinephrine, 50 mu/ml oxytocin, 30ug/ml and 100 pg/ml prostaglandin F_2a and prostaglandin E_2. Obtained results are summerized as follows: 1. Increased hydrogen ion concentration inhibited the contractility of uterine muscle, and dereased concentration increased the motility. 2. Decreased hydrogen ion from pH 7. 4 to pH 9. 4 increased the tension of the uterine contraction to 215±40%. 3. Epinephrine increased the uterine contractility in each pH. In pH 7. 4, the contraction tension of the uterine muscle was increased to 510±65% of the control value, but in pH 6.3 and 9.4, increased contraction tension were significantly lower than pH 7. 4 (p<0.01). 4. The increased contraction tension of oxytocin in pH. 7.4 was 197±25% of the control value In pH 6. 3, the increased contraction tension was significantly lower than pH 7. 4 (p<0.01), but in pH 9.4, the increased contraction was significantly higher (p<0.01). 5. Prostaglandin F2α and E2 increased the contraction tension to 305±34% and 391±73% in pH7. 4. But in pH 6. 3 and 9.4 were lower increased than pH 7.4(p<O.01).

      • SCIESCOPUSKCI등재
      • 적응적 방법에 의한 하이퍼큐브 네트워크 결함 진단 알고리즘

        최혜연,김선신,강성수,최길호,이충세 충북대학교 컴퓨터정보통신 연구소 2003 컴퓨터정보통신연구 Vol.11 No.2

        시스템 레벨의 대부분의 진단 알고리즘은 PMC 모델을 바탕으로 결함의 개수가 t개를 초과하지 않는다는 t-진단가능 시스템의 특성을 이용하여 결함을 진단한다. 그러나, 다중처리 시스템 상에서 큰 규모의 결함 집합을 고려할 때에 여러 가지 제약이 따른다. 또한 병렬처리 시스템의 규모가 커짐에 따라 시스템 내에서 발생되는 결함의 빈도가 높아지게 된다. 진단 알고리즘에서 가정하는 결함의 개수 t는 병렬처리 시스템 안에 있는 노드의 수에 비해 상당히 작은 개수이며, 결함의 개수가 t개를 초과할 경우의 연구는 거의 이루어지지 않았다. Somani와 Peleg은 k개의 부정확한 진단을 용인함으로써 결함의 개수가 t개를 초과할 경우에도 시스템을 진단하는 t/k-dignosable 시스템을 제안하였다. 이 논문에서는 Somani 등이 제안한 것처럼 k=1개의 부정확한 진단을 용인하는 경우에 하이퍼큐브를 진단하는 알고리즘을 제안한다. 이 논문에서 제안한 알고리즘은 더 많은 결함을 진단하면서도 기존의 알고리즘보다 효율이 거의 떨어지지 않는다는 사실을 분석을 통하여 확인할 수 있었다. System level diagnosis algorithms are based on the PMC model and use the properties of t-diagnosable system where the maximum number of the faults does not exceed t. Diagnostic algorithms have limit when dealing with large fault sets in multiprocessor systems. Somani and Peleg proposed t/k-diagnosable system to system diagnose by allowing upper bounded few number of units to be diagnosed incorrectly, which can diagnosis more faults than t-diagnosable system. In this paper, we propose hypercube diagnosis algorithm using t/k-diagnosable system. When the number of faults exceeds t, we allow a fault(k=1) to be diagnosed incorrectly, Based on this idea, we find that the performance of the proposed algorithm is nearly as efficient as any previously known strategies and detect more faults.

      • 산국 (Chrysanthemum boreale) 휘발성 추출액의 항균 및 항진균활성

        차정단,김태영,우원홍,정규용,김강주,길봉섭 원광대학교 생체재료·매식연구소 1999 원광생체재료·매식 Vol.8 No.1

        To investigate the antimicrobial and antifungal activity of Chrysanthemum boreale(C. boreale) essential oil, the growth inhibition against Aspergillus nidulans, Fusarium oxysporum, Alternaria mali, Staphylococcus aureus, Streotococcus pyogenes, Streptococcus mutans and Escherichia coli in the presence of the essental oil was monitored by agar dilution method. The antifungal effect of C. boreale on Aspergillus nidulans, Fusarium oxysporum and Alternaria mali as affected at the concentration of 400 ppm. The antibacterial effect of C. boreale on staphylococcus aureus, streptococcus pyogenes and Streptococcus mutans was affected at the concentration of 0.4 μl, while growth of E. coli was not inhibited at the concentration of essential oil. The results of this experiment on microorganisms indicated that naturally occuring chemical substances from C. boreale might have biologically toxic activities, that is, allelopathic potentials to the microorganisms.

      • 우리나라 청정지역에서 측정한 PM_(2.5) 입자의 특성

        이종훈,김용표,문길주,김희강,정용승,이종범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

        Atmospheric fine particles (PM_(2.5)) were collected at the background sites, Kangwha, Taean, and Kosan and characterized to understand their behaviors at the sites. Daily samples of PM_(2.5) mass were measured and ionic species, carbonaceous species, and gaseous species were analyzed. Four-daγ backward trajectory analysis was also carried out. The mean concentrations of anthropogenic species were highest at Kangwha among three sites, while contributions from sea salts were highest at Taean during the measurement period due to higher wind speed at Taean. Major chemical components in fine particles were sulfates organic carbon, nitrate, and ammonium. Most of the non-sea-salt (nss) sulfates in PM_(2.5) might be present as ammonium sulfates at these sites. Most air parcels arriving at Kangwha and Taean were from northern China. Therefore, both sites were thought to be affected by the same air parcel. At Kosan, during the measurement period, air parcels were from either northern China or southern China. The nss sulfate concentration in the air parcels from southern China was higher, while the nss calcium nitrate, and ammonium concentrations were higher when the air parcels were from northern China.

      • Comparison of Monthly Ibandronate Versus Weekly Risedronate in Preference, Convenience, and Bone Turnover Markers in Korean Postmenopausal Osteoporotic Women

        Chung, Yoon-Sok,Lim, Sung-Kil,Chung, Ho-Yeon,Lee, In-Kyu,Park, Il-Hyung,Kim, Ghi-Su,Min, Yong-Ki,Kang, Moo-Il,Chung, Dong-Jin,Kim, Yong-Ki,Choi, Woong Hwan,Shong, Min Ho,Park, Ji-Hyun,Byun, Dong-Won,Y Springer-Verlag 2009 Calcified tissue international Vol.85 No.5

        <P>Patient preferences, convenience, and bone turnover markers were evaluated for the monthly ibandronate over the weekly risedronate regimen in Korean postmenopausal osteoporotic women. This was a 6-month, prospective, randomized, open-label, multicenter study with a two-period and two-sequence crossover treatment design. After a 30-day screening period, eligible participants with postmenopausal osteoporosis were randomized to receive either monthly oral ibandronate 150 mg for 3 months followed by weekly oral risedronate 35 mg for 12 weeks (sequence A) or the same regimen in reverse order (sequence B). Patient preference and convenience were evaluated by questionnaire. The changes in serum C-telopeptide after 3 months of treatment were analyzed. A total of 365 patients were enrolled in this study (sequence A 182, sequence B 183). Of patients expressing a preference (83.4%), 74.8% preferred the monthly ibandronate regimen over the weekly regimen (25.2%). More women stated that the monthly ibandronate regimen was more convenient (84.2%) than the weekly regimen (15.8%). There was no significant difference in the change in bone turnover marker between the two treatments. The two regimens were similarly tolerable. There were fewer adverse events in the monthly ibandronate group compared to the weekly risedronate group in terms of gastrointestinal side effects (nausea and abdominal distension). This study revealed a strong preference and convenience for monthly ibandronate over weekly risedronate in Korean postmenopausal osteoporotic women. There was no significant difference in change of bone turnover marker and safety profile between the two regimens.</P>

      • SCOPUSKCI등재

        Formation of a Unique 1:2 Calcium-Calixquinone Complex in Aqueous Media

        Kang, Sun-Kil,Lee, One-Sun,Chang, Suk-Kyu,Chung, Doo-Soo,Kim, Ha-Suck,Chung, Taek-Dong Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.3

        We report the complexation behavior of calix[4]arenemonoquinone-triacid (CTAQ), which is an electroactive and water-soluble receptor for calcium ion. UV-visible and NMR spectroscopic studies revealed that CTAQ in aqueous media forms 1:2 as well as 1:1 (metal ion:CTAQ) stoichiometric complexes with $Ca^{2+}$, $Sr^{2+}$, and $Ba^{2+}$ ions. The nonlinear fitting of titration curves based on UV-visible absorption spectra showed that the binding constants of CTAQ for $Ca^{2+}$ ion are 4 $({\pm}2){\times}10^6\;M^{-1}$ for 1:1 and 1.4 $({\pm}0.5){\times}10^{11}\;M^{-2}$ for 1:2 complex. NMR conformational studies and the titration curves corroborate that the $Ca^{2+}$:CTAQ complex in aqueous solution is not present in the form of merely 1:1 one, being consistent with UV-visible spectrophotometric results. The Monte Carlo simulation supports the presence of a stable conformer of 1:2 complexes in which a $Ca^{2+}$ ion is interposed between two CTAQs at the global minimum. This is the first model of 1:2 stoichiometric complex of calix[4]arene and alkaline earth ions in aqueous media.

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