• Proceedings of the Optical Society of Korea Conference
• /
• 한국광학회 1990년도 제5회 파동 및 레이저 학술발표회 5th Conference on Waves and lasers 논문집 - 한국광학회
• /
• pp.252-256
• /
• 1990

In this paper, we proposed E-plane structures to obtain the high insertion loss at stopband and show that T-equivalent and K-inverter of Triple E-plane structures are better than those of All-Metal Insert E-plane structures. To show the characteristics first order bandpass filter are designed and tested at X band.

• Proceedings of the KSME Conference
• /
• 대한기계학회 2005년도 창립60주년 기념 추계 학술대회
• /
• pp.82.2-82.2
• /
• 2005

• Proceedings of the Korea Technology Innovation Society Conference
• /
• 한국기술혁신학회 2006년도 The 1st China-Korea Conference on Innovation Studies
• /
• pp.77-80
• /
• 2006

Focusing on the telecom development scale and science & technology development goal, this paper analyzes and discusses some technical policies, such as NGN, 3G, Triple Play and others that China telecom will stress in the future.

• East Asian mathematical journal
• /
• 제33권3호
• /
• pp.291-293
• /
• 2017

We aim to present two identities which reveal certain interesting relationships among three fundamental theta functions arising from the Jacobi's triple product in an elementary way.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 한국정밀공학회 2008년도 춘계학술대회 논문집
• /
• pp.57-58
• /
• 2008

• Journal of Plant Biology
• /
• 제4권1호
• /
• pp.16-20
• /
• 1961

The author described four triple hybrids by investigating 5000 specimens collected during a period of ten years from all parts of Korea. He concluded that Key factors used for an identification of triple hybrids were mainly trichom types and acorn cup scales. With a plate showing hybrid plants and fruiting characters (latin and Korean).

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 한국소음진동공학회 2013년도 추계학술대회 논문집
• /
• pp.653-655
• /
• 2013

• Communications of the Korean Mathematical Society
• /
• 제36권4호
• /
• pp.829-833
• /
• 2021

We investigate the Möbius transformation action of PSL(2, ℝ) on the set of mutually distinct ordered triple points of ℝ ∪ {∞}.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권2호
• /
• pp.451-457
• /
• 2012

One decade early onset of the breast cancer in Iranian females was reported but the basis of the observed difference has remained unclear and difference in gene silencing by epigenetic processes is suggested. Hence, this study was sought to map the methylation status of estrogen receptor (ER) gene CpG islands and its impact on clinicopathological factors of triple negative and non-triple negative ductal cell carcinoma of the breast in Iranian females. Surgically resected formalin-fixed paraffin-embedded breast tissues from sixty Iranian women with confirmed invasive ductal carcinoma were assessed by methylation-specific PCR using primer sets encompassing some of the 29 CpGs across the ER gene CpG island. The estrogen and progesterone receptors, Her-$2^+$ overexpression, and nuclear accumulation of P53 were examined using immunohistochemistry (IHC). Methylated ER3, ER4, and ER5 were found in 41.7, 11.3, and 43.3% of the samples, respectively. Significantly higher methylation of ER4 was found in the tumors with nuclear accumulation of P53, and significantly higher methylation of ER5 was found in patients with lymph node involvement and tumor with bigger size or higher grades. Furthermore, significantly higher rate of ER5 methylation was found in patients with Her-$2^+$ tumors and in postmenopausal patients with $ER^-$, $PgR^-$, or $ER^-/PgR^-$ tumors. However, no significant difference in ERs methylation status was found between triple negative and non-triple negative tumors in pre- and postmenopausal patients. Findings revealed that aberrant hypermethylation of the ER-alpha gene frequently occurs in Iranian women with invasive ductal cell carcinoma of the breast. However, methylation of different CpG islands produced a diverse impact on the prognosis of breast cancer, and ER5 was found to be the most frequently methylated region in the Iranian women, and could serve as a marker of poor prognosis.

• Journal of the Korean Crystal Growth and Crystal Technology
• /
• 제30권1호
• /
• pp.17-20
• /
• 2020

Developing effective and earth-abundant electrocatalyst for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is critical for the commercialization of a water splitting system. In particular, the overpotential of the OER is relatively higher than the HER, and thus, it is considered that one of the important methods to enhance the performance of the electrocatalyst is to reduce the overpotential of the OER. In this work, we present a simple synthetic route for triple perovskite Nd_1.5Ba_1.5CoFeMnO_x with high performance OER and HER activity. This triple perovskite structure which shows high crystallinity through combustion method shows superior bifunctional catalytic performance in alkaline media. We believe that the prepared triple provskite with high performance OER and HER activity can give further feasibility for the commercialization of a water splitting system.