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[PG-0001] Growth performance among the provincial Teak (Tectona grandis Linn.f,) in Myanmar
EiSandi Sett(EiSandi Sett ),Hye-Jin LEE(Hye-Jin LEE),Yang-Gil KIM(Yang-Gil KIM),Dayoung LEE(Dayoung LEE),Sunjeong KIM(Sunjeong KIM),Yoon-Ji Hahn(Yoon-Ji Hahn),Tae-Lim YEO(Tae-Lim YEO),Kyu-Suk KANG(Kyu 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
Lim, Tae Hwan,Yeo, Sang Young,Lee, So Hee Elsevier 2018 Journal of aerosol science Vol.126 No.-
<P><B>Abstract</B></P> <P>Carbon air filter, called cabin filter, has been used to remove harmful airborne particles and gases causing human disease. This filter is composed of nonwoven and meltblown layers with activated carbons and is widely employed for such purposes as automobile air conditioning. Here, a fiber binder adapted cabin filter was prepared to simplify the fabrication process, enhance the economic benefits, and improve the filtration and gas adsorption efficiencies of the cabin filter. It exhibited higher filtration and gas adsorption efficiencies than a conventional liquid binder adapted cabin filter. Furthermore, multidirectional evaluations of the filtration efficiencies were performed considering various aerosol types, various particle sizes, inclusion or exclusion of electrostatics, various gas adsorptions of the filter unit, and lifespan expectation through dust feeding. A quality factor was introduced to substantiate the filter performance by considering the correlation between pressure drop and particle penetration. The optimal weight of the meltblown layer was first selected as 20 g/m<SUP>2</SUP>, and it was confirmed that the mechanical and filtration properties of the fiber binder-adapted cabin filter were higher than those of a conventional cabin filter. An electro-charging effect was tested to demonstrate that it filled the efficiency vacancy under 1 µm and enhanced the filtration efficiency of the fiber binder adapted cabin filter compared with that of the uncharged cabin filter. Finally, the filter has a longer lifespan than the conventional one because it has more space to store dust. Overall, our research demonstrates a method to fabricate a fiber binder-adapted cabin filter and evaluates its performance via comprehensive evaluations.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We perform the multidirectional evaluations of air filter performance. </LI> <LI> We analyze synthetically the filter performance with various testing standards. </LI> <LI> Efficiency enhanced cabin air filter is prepared by our novel technique. </LI> <LI> The filter is considered not only efficiency but the processability and cost-effect. </LI> <LI> The method of lifespan expectation of cabin filter is suggested by laboratory scale test. </LI> </UL> </P>
Yeo, Seung-Gu,Lim, Hyeon Woo,Kim, Dae Yong,Kim, Tae Hyun,Kim, Sun Young,Baek, Ji Yeon,Chang, Hee Jin,Park, Ji Won,Oh, Jae Hwan BioMed Central 2014 Radiation oncology Vol.9 No.-
<P><B>Background</B></P><P>We investigated whether routine elective irradiation of a clinically negative inguinal node (IGN) is necessary for patients with locally advanced distal rectal cancer and anal canal invasion (ACI).</P><P><B>Methods</B></P><P>We reviewed retrospectively 1,246 patients with locally advanced rectal adenocarcinoma managed using preoperative or postoperative chemoradiotherapy and radical surgery between 2001 and 2011. The patients’ IGN was clinically negative at presentation and IGN irradiation was not performed. ACI was defined as the lower edge of the tumor being within 3 cm of the anal verge. Patients were divided into two groups, those with ACI (n = 189, 15.2%) and without ACI (n = 1,057, 84.8%).</P><P><B>Results</B></P><P>The follow-up period was a median of 66 months (range, 3–142 months). Among the 1,246 patients, 10 developed IGN recurrence; 7 with ACI and 3 without ACI. The actuarial IGN recurrence rate at 5 years was 0.7%; 3.5% and 0.2% in patients with and without ACI, respectively (<I>p</I> < 0.001). Isolated IGN recurrence occurred in three patients, all of whom had ACI tumors. These three patients received curative intent local treatments, and one was alive with no evidence of disease 10 years after IGN recurrence. Salvage treatments in the other two patients controlled successfully the IGN recurrence for >5 years, but they developed second malignancy or pelvic and distant recurrences. Seven patients with non-isolated IGN recurrence died of disease at 5–22 months after IGN recurrence.</P><P><B>Conclusion</B></P><P>The low IGN recurrence rate even with ACI and the feasibility of salvage of isolated IGN recurrence indicated that routine elective IGN irradiation is not necessary for rectal cancer with ACI.</P>