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이호섭,오인환 國立 昌原大學校 産業技術硏究所 1989 産技硏論文集 Vol.3 No.-
The excitation and emission spectra of photoluminescence of Lead Molybdate single crystals and its annealing effect are investigated. The photoluminescence spectra of Lead Molybdata are measured by time resolved spectroscopy using Nd-YAG pulse laser(=1.064㎛) as exciting radiation source. The near edge absorption of (100) and (001) plate are 3.28 eV and 3.21 eV respectively, and shift towards the UV region as annealing time increase. In present experiment we obtained broad band photoluminescence spectra of the crystals at 520 nm.
Lee, Ho Sueb 昌原大學校 基礎科學硏究所 1996 基礎科學硏究所論文集 Vol.8 No.-
(CH₃NHCH₂COOH)₃??혼정(x=0, 0.05 및 0.1)의 저주파수 유전특성을 조사하였다. 순수한 (CH₃NHCH₂COOH)₃CaCl₂의 유전상수와 손실은 Tc근방에서 예리한 peak를 보인 반면 Mn을x=0.05 및 0.1 치환시킨 혼정에서는 그 anomaly가 broader하였다. 특히 Mn이 10mol% 첨가한 시료에서는 임계영역안에서 극소점이 나타났으며 이는 (CH₃NHCH₂COOH)₃CaCl₂의 상전이 기구가 임계영역내에서는 질서무질서형 거동하는 것을 뒷받침 하였다.
Park, Jong-Ho,Back, Nam Kwon,Yoo, Dae-Hwang,Kim, Chung-Sik,Yang, Ho-Soon,Choi, Byung Chun,Moon, Byung Kee,Seo, Hyo Jin,Lee, Ho-Sueb,Hong, K. S. Gordon and Breach Science Publishers 2006 Integrated ferroelectrics Vol.79 No.-
<P> Pure and Nb-doped Bi4Ti3O12 ceramics were prepared by using the conventional solid state reaction method. The dielectric permittivity and electrical modulus in pure and Nb-doped Bi4Ti3O12 ceramics were measured in the temperature range of 30 ∼ 700 °C and the frequency range of 1 Hz∼1 MHz through an impedance spectroscopy method. The obtained results showed well-defined relaxation peaks. The conductivity relaxation times are determined from the peaks of the modulus. The activation energies associated with hopping condition are 0.42 eV and 0.53 eV in pure and Nb-doped Bi4Ti3O12 ceramics, respectively.</P>
이호섭 國立昌原大學校 基礎科學硏究所 1992 基礎科學硏究所論文集 Vol.3 No.-
Infrared reflection spectra of Gd₂(MoO₄)₃single crystals are measured in the range 600-??????. The spectra are analysed with dielectric dispersion analysis and Kramers-Kronig relation. Optical phonon modes TO and LO phonon modes of B₁and B₂show very strong oscillator strengths and small damping constants, whreras A₁polar mode have shows large damping constant. The frequency inversion between TO and LO phonons are observed near the TO phonon with large oscillator strength.
Lee, Ji-In,Song, Ho-Sueb Korean AcupunctureMoxibustion Medicine Society 2019 대한침구의학회지 Vol.20 No.4
Background: The therapeutic potential of Bee Venom Pharmacopuncture (BVP) on acute ischemic cerebral infraction was determined in mice in vivo and in vitro. Methods: Analysis of acute ischemic cerebral infraction was performed using 7 week old male ICR mice (n = 20) and microglial BV-2 cells. Bee venom ($5{\mu}g/kg$) was injected into the caudal vein of middle cerebral artery occlusion (MCAo) mice (1 hour after reperfusion, 3 hours after MCAo probe insertion), and also used to treat LPS-stimulated microglial BV-2 cells (1, 2, $5{\mu}g/mL$). Markers of inflammation were monitored. Results: NO declined statistically significantly in BVP treated MCAo mice compared to the untreated MCAo group (p < 0.05). Compared to the MCAo group, the BVP-treated MCAo group showed a decreased production volume of malondialdehyde, but an increased glutathione/oxidized glutathione ratio. Compared to the untreated MCAo group, the BVP treated MCAo group showed a statistically significant decline in TNF and $IL-1{\beta}$ levels (p < 0.05). BVP inhibited the levels of p65, p50, $p-I{\kappa}B-{\alpha}$, and levels of p-ERK1/2, p-JNK2, p-P38 declined. Conclusion: BVP is effective at dampening the inflammatory response in vivo and in vitro and may supplement rt-PA treatment.
이호섭,김상수 國立昌原大學校 基礎科學硏究所 1992 基礎科學硏究所論文集 Vol.3 No.-
Spontaneous Birefringence and Electro-Optical properties of Gd₂(MoO₄)₃single crystals were studied. Electro-Optic coefficient and its temperature dependence and Spontaneous Birefringence near the Curie temperature and measured by using the Babinet-Soleil compensator with A/D converter. The value of ??? is 4×??? m/V at room temperature and decreased to zero at phase transition one. The values of temperature and electric field dependence near the phase transition point are presented as hysterosis phenomena.
Effects of Scutellaria baicalensis Extract on Gout-Induced Rats
Eunchang Lee,Ho-Sueb Song 대한침구의학회 2023 대한침구의학회지 Vol.40 No.2
Background: This study aimed to investigate hyperuricemia, renal inflammation, and xanthine oxidase (XO) activity improvement in a rat model treated with Scutellaria baicalensis extract (SBE). Methods: The rats were divided into 4 groups (n = 5 each), including sham, potassium oxonate (PO) injected hyperuricemia (control group), PO + 10 mg/kg allopurinol administrated (allopurinol group), and a PO + 50 mg/kg SBE administrated (SBE group), to investigate the effectiveness and molecular mechanisms of SBE. The effects of SBE on PO-induced hyperuricemia rats, renal inflammation, and XO activity were measured. Body weight and organ index of the kidney and liver were measured in PO-induced hyperuricemia rats, and serum uric acid level was extracted from whole blood and was measured. Renal inflammation was observed under a microscope after sections. XO activity was measured by liver tissue and serum XO levels. Results: Organ indexes of the kidney and liver in rats were significantly decreased in the allopurinol group than in the control group and with no significant difference in the SBE group. A PO injection for 5 days significantly increased serum uric acid levels in the control group compared to the sham group. Meanwhile, the SBE and allopurinol groups have significantly decreased serum uric acid levels compared to the control group. The SBE group revealed effectively improved renal histopathological changes compared to the control group. The XO inhibitor, allopurinol, significantly decreased XO activity. Additionally, SBE significantly lowered XO activity in rats. Conclusion: SBE can be used as an effective treatment for gout in the future.
이홍선,송호섭,Lee, Hong-Sun,Song, Ho-Sueb The Korean AcupunctureMoxibustion Medicine Society 2008 대한침구의학회지 Vol.25 No.2
목적 : 이 연구는 봉약침의 봉독과 그 주요성분인 멜리틴이 $NF-{\kappa}B$의 활성억제와 세포자멸사 관련 단백질의 발현 조절을 통하여 세포자멸사를 유도하고 전립선 암세포주인 LNCaP 세포의 성장을 억제하는지를 확인하고 해당 기전을 살펴보고자 하였다. 방법 : 봉독이나 멜리틴을 처리한 후 LNCaP의 성장억제를 관찰하기 위해 WST-1 assay, CCK-8 assay를 시행하였고, 세포자멸사의 관찰에는 DAPI, TUNEL staining assay를 시행하였으며, 세포자멸사 조절단백질의 변동 관찰에는 western blot analysis를 시행하였고, 세포자멸사와 연관된 $NF-{\kappa}B$의 활성 변화를 관찰하기 위해 EMSA를 시행하였으며, LNCaP에서 봉독이나 멜리틴과 $NF-{\kappa}B$의 상호작용을 관찰하기 위해 transient transfection assay를 시행 시 세포생존율과 $NF-{\kappa}B$의 활성 변동을 측정하였다. 결과 : LNCaP 세포에 봉독이나 멜리틴을 처리한 후, 전립선암세포의 성장, 세포자멸사의 유발, 세포자멸사 관련 단백질의 발현, $NF-{\kappa}B$의 활성, $NF-{\kappa}B$의 p50 치환 후 $NF-{\kappa}B$의 활성과 LNCaP 세포 증식에 미치는 영향을 관찰하여 다음과 같은 결과를 얻었다. 1. LNCaP 세포에서 봉독이나 멜리틴을 처리한 후 세포자멸사가 유도되어 세포성장이 억제되었고, 세포자멸사 관련 단백질 중 분리된 PARP, caspase-9, Bax는 유의한 증가를, Bcl-2, p-Akt, MMP 13, XIAP, cXIAP는 유의한 감소를 나타내었다. 2. LNCaP 세포에서 봉독이나 멜리틴을 처리한 후 $NF-{\kappa}B$의 활성의 유의한 감소를 나타내었다. 3. LNCaP 세포에서 $NF-{\kappa}B$ p50를 치환하여 작용기를 없애고 봉독이나 멜리틴을 처리하였을 경우에도 $NF-{\kappa}B$의 활성의 유의한 감소를 나타내었다. 결론 : 이상의 결과는 봉독이나 멜리틴이 $NF-{\kappa}B$의 활성 억제를 통하여 인간 전립선암세포주인 LNCaP의 세포자멸사를 유발함으로써 증식억제 효과가 있음을 입증한 것으로 전립선암의 예방과 치료에 대한 효과적인 치료제 개발에 도움이 될 것으로 기대된다. 다만 그 기전에서 봉독이나 멜리틴은 기존연구와 달리 $NF-{\kappa}B$ p50의 작용기와 직접적으로 상호작용을 하지는 않는 것으로 보이므로 심화 연구를 요한다.