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( Jun Kong Cheon ),( Cheon Hee Park ),( Kan Taeck Hwang ),( Bo Yoon Choi ) 대한마취과학회 2011 Korean Journal of Anesthesiology Vol.60 No.4
Background: We wanted to determine the postoperative analgesic effi cacy of preincisional caudal epidural block versus instillation (splash block) following inguinal herniorrhaphy in children. Methods: Thirty children (age range: 1-7 years) who were scheduled to undergo inguinal herniorrhaphy were divided into 2 groups: the caudal block group and the splash block group with 15 children in each group. Tracheal intubation was performed. Fifteen children received caudal block with 1.0 ml/kg of 0.25% ropivacaine (Group 1). Caudal block was performed using the loss of resistance method via the sacral hiatus. Fifteen children in Group 2 received local instillation (splash block) in the surgical site with up to 0.4 ml/kg of 0.25% ropivacaine. The patients were observed for 90 minutes in the postanesthesia care unit and then they were transferred to the ward. The pain scores were taken 4 times. We assessed pain using the Faces pain scores. Results: There were no significant differences between the groups regarding the pain scores at 10, 30 and 60 minutes upon entering the postanesthesia care unit. The pain scores of Group 1 were slightly lower at the last evaluation point when compared to that of Group 2. One patient in Group 1 required supplemental postoperative intravenous (IV) tramadol, while all the other patients in both groups did not require supplemental IV tramadol. The intraoperative requirement for sevoflurane was decreased in Group 1 as compared to that of Group 2. There were no major complications related to either type of block. Conclusions: We conclude that a splash block can have a similar analgesic effect as that of a caudal block for the postoperative herniorrhaphy pain of children. (Korean J Anesthesiol 2011; 60: 255-259)
Jung, Hyocheol,Kong, Nam Sik,Kim, Beomjin,Lee, Kyu Cheol,Kim, Soon Cheon,Lee, Chan Kyu,Kong, Hoyoul,Jun, Kun,Kim, Jin Chul,Noh, Seung Man,Cheong, In Woo,Park, Jongwook,Park, Young IL Elsevier 2018 Dyes and pigments Vol.149 No.-
<P><B>Abstract</B></P> <P>A new dimeric triarylmethine-based dye, Ac-BTM-DHFMS, substituted with methacrylate groups, was designed and synthesized to improve thermal and chemical stability by using polymerisation of the acrylate cross-linking group. To evaluate the dye in color filter applications, filters were fabricated and evaluated after heat treatment at 230 °C for 1 h, and solvent stability was evaluated after dipping filters for 10 min in isopropyl alcohol (IPA), propylene glycol monomethyl ether acetate (PGMEA), and cyclohexanone. During the thermal stability test, Ac-BTM-DHFMS showed a ΔE<SUB>ab</SUB> value of 4.21. In the solvent stability test, Ac-BTM-DHFMS showed ΔE<SUB>ab</SUB> values of 1.0 (IPA), 0.3 (PGMEA), and 0.7 (cyclohexanone), respectively. These ΔE<SUB>ab</SUB> values of color filter mean that Ac-BTM-DHFMS is thermally and chemically more stable than H-BTM-DHFMS without the methacrylate groups. These results show that Ac-BTM-DHFMS has potential for application as a color filter for blue dyes.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Ac-BTM-DHFMS substituted with methacrylate groups has been designed and synthesized as potential color filter dyes. </LI> <LI> Ac-BTM-DHFMS showed improved solubility due to twisted molecular structure and bulky methacrylate groups. </LI> <LI> Cross-linkable group of Ac-BTM-DHFMS make be improved thermal/chemical stability. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
MgO-Carbon 내화물의 산화반응기구와 TiC첨가에 의한 산화방지 효과
천승호,공현식,전병세,Cheon, Sungho,Kong, Hyunsik,Jun, Byungsei 한국세라믹학회 2004 한국세라믹학회지 Vol.41 No.9
The kinetics of oxidation and disappearance of graphite in MgO-C refractories containing TiC were, in the temperature range from 1000 to 1200$^{\circ}C$, investigated to enhance the oxdation resistance of MgO-C refractproes. The air was blown into the furnace at flow rate of 0.2 litters per minute, and then weight decrease was measured with a thermo balance at 30 seconds intervals until the value of weight became unchanged. The value of effective diffusion coefficient (De) for the specimen of MgO-C was 1.39${\times}$10$\^$-4/ ㎡/sec. The diffusion of oxygen through decarburized layer was the rate deforming step in the overall oxidation process under present experimental conditions. The TiC additions enhanced the oxidation resistance of the MgO-C refractories. 마그카본계 내화물의 산화저항성을 증대시키기 위하여 섭씨 100$0^{\circ}C$에서 120$0^{\circ}C$에서 산화기구를 조사하고, TiC를 첨가하여 산화저항성 증가에 대한 효과를 관찰하였다. 산소공급을 위해 공기를 분당 0.2리터의 속도로 흘려주었으며 열천칭으로 무게변화가 없어질 때까지 매 30초 간격마다 무게감소를 측정하였다 본 실험에서 사용된 마그카본계 시편의 산화거동과 관련한 유효확산 계수는 1.39${\times}$$10^{-4}$ $m^2$/sec이다. 이러한 실험조건에서 총체적인 산화공정은 산화된 기공층을 통하여 내부로 향하는 산소의 확산에 의해 지배되는 반응으로 해석할 수 있다. TiC를 첨가한 시편은 마그카본계 내화물의 산화 저항성을 증대시켰다.
맹장 종양으로 오인된 자궁내막증에 의한 맹장과 충수돌기의 장중첩
이태화 ( Lee Tae Hwa ),이천준 ( Lee Cheon Jun ),김원규 ( Kim Won Gyu ),정창환 ( Jeon Chang Wan ),윤명희 ( Yoon Myung Hee ),윤기영 ( Yoon Ki Young ),공은희 ( Kong Eun Hee ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.7
We report a case of intussusception of the cecum and appendix arising in pericecal endometriosis that are mistaken as a cecal tumor preoperatively. At the other OBGY clinic, the 1st lapalotomy was performed for management of leiomyoma but pelvic organs were adhesion severely and palpation mass in the secum and appendix. The patient was transfer to our hospital for evaluation and treatment of mass. We investigated to intestine closely and diagnosis was cecal tumor colonoscopically. Total hystrectomy and ilocecectomy was performed successfully and discovered intussusception of the cecum and appendix due to endometriosis mistaken as a cecal tumor in operative field. Postoperatively, this case was diagnosed in pericecal endometriosis histologically.
선진규 ( Jin Gyu Sun ),문종필 ( Jong Pil Moon ),전준공 ( Jun Kong Cheon ),구진영 ( Jin Young Gu ),김병선 ( Byoung Seon Kim ),배유영 ( You Young Bae ),기광수 ( Kwang Soo Kee ) 대한산부인과학회 2011 Obstetrics & Gynecology Science Vol.54 No.2
Non-puerperal uterine inversion is a rare clinical problem with only 150 cases reported. It usually results from a tumor implanted on fundus of the uterus. Uterine inversion associated with pelvic organ prolapse (POP) is extremely rare with only 1 case reported. A 74-year-old multiparous menopausal women was admitted to our hospital with the following condition: purulent vaginal discharge, voiding difficulty, lower abdominal discomfort, vaginal bleeding, protruding vaginal mass and POP. She was diagnosed as a POP with uterine inversion. After a posterior hysterotomy, vaginal hysterectomy, bilateral salpingoophorectomy and colpocleisis was performed and the pathological examination revealed a pyometra. We report a rare case of uterine inversion associated with POP and pyometra with a brief review of literature.
Go, H.Y.,Lee, J.A.,Park, S.,Park, S.,Park, J.S.,Cheon, C.,Ko, S.G.,Kong, K.H.,Jun, C.y.,Park, J.h.,Shin, M.R.,Lee, S.H. Pub. Office, Journal of Traditional Chinese Medici 2015 Journal of traditional Chinese medicine Vol.35 No.5
Objective: To evaluate the efficacy, safety, satisfaction, discomfort and patient preference of moxa cones of artemisia vulgaris and charcoal moxa. Methods: This comparative study of moxibustion treatment with Artemisia vulgaris and charcoal moxa cone stimulating Zhongwan (CV 12) is a cross-over single-blinded, randomized clinical trial. A total of 40 healthy subjects (24 males and 16 females) participated in this study. Two subjects dropped out of the trial. Thirty-eight subjects were treated with Artemisia vulgaris and charcoal moxa cones for 30 min in a cross-over design. After treatment, the patients underwent a 30 minute waiting period, and then the temperatures at Tanzhong (CV 17), Zhongwan (CV 12) and Guanyuan (CV 4) were measured using digital infrared thermal imaging. Results: After the use of Artemisia vulgaris moxa, the patients' body temperatures were slightly lowered at Tanzhong (CV 17), Zhongwan (CV 12) and Guanyuan (CV 4), but the changes were not statistically significant. After the use of charcoal moxa, the patients' body temperatures were somewhat increased at Zhongwan (CV 12) and Guanyuan (CV 4), but the changes were not statistically significant. After Artemisia vulgaris moxa use, the body temperature difference between Zhongwan (CV 12) and Guanyuan (CV 4) was significantly increased. After charcoal moxa use, the body temperature difference between Tanzhong (CV 17) and Zhongwan (CV 12) was significantly decreased in males and in the whole group. This change was caused by the difference in the moxibustion type and by gender differences. Conclusion: This pilot study found that moxibustion did not raise the body temperature, but temperature differences between acupoints were affected. Further large-scale randomized controlled trials are needed for the effect of moxibustion on body temperature.