http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Pushpanathan (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Conversion rate and risk factors of conversion to open in laparoscopic appendicectomy
Pushpanathan Nelson Rao,Hashim Mohd Nizam Md,Zahari Zalina,Aziz Syed Hassan Syed Abd.,Zain Wan Zainira Wan,Ramely Rosnelifaizur,Wong Michael Pak-Kai,Mohamad Ikhwan Sani,Mokhter Wan Mokhzani Wan,Yahya 대한대장항문학회 2022 Annals of Coloproctolgy Vol.38 No.6
Purpose: Laparoscopic appendicectomy (LA) has several advantages over conventional open appendicectomy (OA). However, about 5% to 10% of LA patients still need to be converted to open surgery. Identifying risk factors that contribute to conversion to OA allows for early identification of patients who may benefit from primary OA. This study aimed to determine the conversion rate of LA to OA and to identify its associated risk factors among patients with acute or perforated appendicitis. Methods: A retrospective review of medical records was performed among patients with acute or perforated appendicitis who underwent LA between December 2015 and January 2017. With the use of multivariable logistic regression analyses, the predictors of conversion from laparoscopic to OA were investigated. Results: Out of 120 patients, 33 cases were converted to OA which gives a conversion rate of 27.5%. Among 33 patients who were converted to OA, 27 patients (81.8%) had perforated appendix, while in the LA group, perforated appendix cases consisted of 34.5% (P<0.001). Histopathology of the appendix was the predictor of conversion from LA to OA (adjusted odds ratio, 8.82; 95% confidence interval, 3.13–24.91; P<0.001). Conclusion: The result from our study shows that the overall conversion rate for the study period was high. Patients with perforated appendicitis had a higher risk of conversion to OA. Therefore, preoperative diagnosis of perforated appendicitis may be paramount in predicting conversion to OA.
-
Efficient Spectrum Allocation with Survivability Technique in Elastic Optical Networks
Pushpanathan Krishnamoorthy,Sivasubramanian Arunagiri,Jawahar Arumugam,Jesuwanth Sugesh R.G,MenaghaPriya.B.R 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.3
In recent years, traffic requirement with variable bit rates and Quality of Service due to online High Definition video streaming, downloading movies and transferring of files are being satisfied with Elastic Optical Network (EON). Most efficient spectrum utilization is required to satisfy the demand with minimum blocking probability. The network is unstable and a small failure can lead to tremendous loss of data, hence survivability is mandatory. Slot Capacity based Spectrum Allocation with Survivability (SCSAS) algorithm is proposed which aims at the efficient spectrum utilization and configuration of protection paths. Duty Cycle Division Multiplexing (DCDM) and hop based modulation technique are also introduced to manage the spectrum which further reduces the spectrum wastage. The formation of spectrum fragments on the termination of existing requests increases the blocking probability. In order to improve the spectrum utilization, a spectrum defragmentation technique is introduced in the proposed work. Dynamic configuration of backup paths provides survivability. Results show an increase in free spectrum for dynamic requests, lesser spectrum wastage, and reduced blocking probability than the traditional algorithms such as fixed, flexible and random spectrum allocation.
-
Concrete with sisal fibered geopolymer: a behavioral study
Muthupandy Varuthaiya,Chandrasekaran Palanisamy,Vivek Sivakumar,Ganeshan Pushpanathan 한양대학교 청정에너지연구소 2022 Journal of Ceramic Processing Research Vol.23 No.6
Globally, the greenhouse gas effect is a serious environmental concern. The cement sector is responsible for 5-8% of globalgreenhouse gas emissions. Geopolymer concrete is a low-carbon, low-sulfur alternative to traditional Portland cement concrete. Geopolymer concrete is created when alumino-silicate minerals react with alkaline liquids. The sisal fiber can be utilized toimprove the inherent qualities of Geopolymer concrete. The main purpose of this research is to look at the behavior of sisalfibered geopolymer concrete in several trials and show how it differs from regular Portland cement concrete. The fiber hasoptimal fiber content, according to the test results.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
