한국재래산양의 육성사료 개발을 위한 농산 부산물 중 사과박과 미강의 이용

황보순,안종호,이주삼,조익환 한국영양사료학회 1999 韓國營養飼料學會誌 Vol.23 No.4

본 실험에서는 볏짚, 사과박, 미강 등의 농산부산물 및 시판사료의 혼합 비율을 A구는 60:0:0:40, B구는 60:0:30:10, C구는 30:30:30:10, D구는 0:60:30:10으로 조제하여 한국 재래산양에게 급여하였다. 사료섭취량과 영양소 소화율 및 제 1위내 발효 성상을 조사하였으며 이에 따른 재래산양의 육성사료로서 농산부산물의 활용 가능성을 제시하고자 실시하였다. 그 결과를 요약하면 다음과 같다. 1. 시험사료의 화학적 조성분은 조단백질 함량이 8.2∼9.5%이었고 ADF와 NDF 함량은 A구가 각각 32.2와 65.8%로 가장 높았고 D구가 l8.3와 36.5%으로 가장 낮은 경향을 보였으나, 조지방과 NSC는 D구가 9.2와 39.5%로 가장 높았다. 2. 1일 두당 건물섭취량은 A, C 및 D구가 각각 455.6, 446.5 및 418g으로 B구의 313.1g 보다 유의하게 높았다. 3. 건물, 유기물, 조단백질, ADF 및 NDF 소화율은 ADF와 NDF 함량이 적고 NSC 함량이 높은 사과박 혼합구가 높았다. 4. 질소 축적량과 축적율은 사과박 혼합구가 높았고 B구가 가장 낮았다. 5. pH 및 NH₃-N농도는 각각 6.1∼6.8, 22.6∼24.4㎎/100㎖의 범위로서 처리구간 pH의 유의한 차이는 없었으나 사과박 혼합구에서 NH₃-N 농도가 유의하게 높았다. 6. Acetate와 propionate의 비율은 사과박 혼합구가 낮게 나타났다. In this study, rice straw, apple pomace and rice bran of agricultural by-products and commercial diets were mixed and fed to Korean native growing goats in 4 different ratios (A 60:0:0:40, B 60:0:30:10, C 30:30:30:10, D 0:60:30:10). Dry matter intake, digestibilities of nutrients and ruminal fermentation characteristics were investigated and using those data, the possibilities of application of agricultural byproducts in Korean native goats were suggested. The results are as follows. 1. Crude protein contents of experimental diets in 4 different treatments were similar in the range of 8.2∼9.5%. The contents of ADF(acid detergent fiber) and NDF(neutral detergent fiber) were highest in A (32.2, 65.8%) and lowest in D (18.3, 36.5%). Ether extracts and NSC (non-structural carbohydrates) were highest in D (9.2, 39.5%). 2. Dry matter intakes per head and day were significantly higher in A, C and D (455.6, 446.5, 418g) than 313.1g of B. 3. Digestibilities of dry matter, organic matter, crude protein, ADF and NDF were higher in apple pomace treatments that contained higher NSC and less ADF and NDF than rice straw treatments. 4. Nitrogen retention was higher in apple pomace treatments wheras that of B was lowest among all treatments. 5. pH values of 6.1∼6.8 were similar in all treatments however NH₃-N concentrations in the range of 22.6∼24.4 ㎎/100㎖ were significantly higher in apple pomace treatments. 6. A/P ratios (Acetate/Propionate ratio) were lower in apple pomace treatments than those of other treatments

Tonal domains and nonfinality effects in the Samchuk dialect of Korean

Young-Shik Hwangbo 한국음운론학회 2003 음성·음운·형태론 연구 Vol.9 No.1

Hwangbo, Young-Shik. 2003. Tonal domains and nonfinality effects in the Samchuk dialect of Korean. Studies in Phonetics, Phonology and Morphology 9.1. 223-246. This paper deals with tones of the Samchuk dialect of Korean, focusing on typical tonal patterns of nouns. I claim that the underlying forms of Korean tone dialects are marked by tonal boundaries, which later define tonal domains. I argue, following Gim (1988, 1999), that in most cases the positions of tonal boundaries are predictable from Middle Korean side-dots, and thus that all modern tone dialects have the same location of tonal boundaries. In addition, I argue, following Hwangbo (2001), that the different tone realization between dialects results from different constraint ranking. I show that the interesting tonal phenomena of the Samchuk dialect can be explained in a principled manner if we have recourse to the tonal boundaries and tonal domains. More specifically, I show that 'post-accenting' and 'pre-accenting' observed in the Samchuk dialect can be explained as nonfinality effects within tonal domains. (Sungkyul University)

Municipal wastewater sludge and its land application

Hwangbo Jun Kwon,Kwak Young Se,Yoon Hee Chul,Kang Suk Ju,Kang Jin Su 한국대기환경학회 2007 한국대기환경학회 학술대회논문집 Vol.- No.-

Burst Locating Capability of the Korean Solar Radio Burst Locator (KSRBL)

Hwangbo, Jung-Eun,Bong, Su-Chan,Park, Sung-Hong,Lee, Dae-Young,Cho, Kyung-Suk,Lee, Jaejin,Park, Young-Deuk The Korean Space Science Society 2015 Journal of Astronomy and Space Sciences Vol.32 No.1

The Korean Solar Radio Burst Locator (KSRBL) is a solar radio spectrograph observing the broad frequency range from 0.245 to 18 GHz with the capability of locating wideband gyrosynchrotron bursts. Due to the characteristics of a spiral feed, the beam center varies in a spiral pattern with frequency, making a modulation pattern over the wideband spectrum. After a calibration process, we obtained dynamic spectra consistent with the Nobeyama Radio Polarimeter (NoRP). We compared and analyzed the locations of bursts observed by KSRBL with results from the Nobeyama Radioheliograph (NoRH) and Atmospheric Imaging Assembly (AIA). As a result, we found that the KSRBL provides the ability to locate flaring sources on the Sun within around 2'.

A Case of Multicentric Castleman's Disease Presenting with Follicular Bronchiolitis

HwangBo, Yup,Cha, Seung-Ick,Lee, Yong Hoon,Lee, So Yeon,Seo, Hyewon,Oh, Serim,Kim, Minjung,Choi, Sun Ha,Park, Tae In,Shin, Kyung-Min The Korean Academy of Tuberculosis and Respiratory 2013 Tuberculosis and Respiratory Diseases Vol.74 No.1

Multicentric Castleman's disease (CD) is a rare atypical lymphoproliferative disorder, which is characterized by various systemic manifestations. Some patients with multicentric CD may have concomitant lung parenchymal lesions, for which lymphoid interstitial pneumonia (LIP) is known to be the most common pathologic finding. Follicular bronchiolitis and LIP are considered to be on the same spectrum of the disease. We describe a case of multicentric CD with pulmonary involvement, which was pathologically proven as follicular bronchiolitis.

Transbronchial and Transesophageal Fine-Needle Aspiration Using an Ultrasound Bronchoscope in Mediastinal Staging of Potentially Operable Lung Cancer

Hwangbo, Bin,Lee, Geon-Kook,Lee, Hee Seok,Lim, Kun-Young,Lee, Soo-Hyun,Kim, Hyae-Young,Lee, Hyun Sung,Kim, Moon Soo,Lee, Jong Mog,Nam, Byung-Ho,Zo, Jae Ill Elsevier 2010 Chest Vol.138 No.4

MAGNETIC STRUCTURE AND NONTHERMAL ELECTRONS IN THE X6.9 FLARE ON 2011 AUGUST 9

Hwangbo, Jung-Eun,Lee, Jeongwoo,Park, Sung-Hong,Kim, Sujin,Lee, Dae-Young,Bong, Su-Chan,Kim, Yeon-Han,Cho, Kyung-Suk,Park, Young-Deuk IOP Publishing 2014 The Astrophysical journal Vol.796 No.2

<P>The 2011 August 9 flare is one of the largest X-ray flares of sunspot cycle 24, but spatial information is rather limited due to its position close to the western limb. This paper presents information about the location of high-energy electrons derived from hard X-ray and microwave spectra obtained with the Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) and the Korean Solar Radio Burst Locator (KSRBL), respectively. The KSRBL microwave spectrum shows significant fluxes at low frequencies, implying that the high-energy electrons reside in a coronal volume highly concentrated at strong magnetic fields, and rapidly expanding with decreasing magnetic fields. After a simple modeling of the microwave spectrum, we found that the microwave source should be located above the inner pair of magnetic poles in a large quadrupolar configuration. The time-dependent evolution of the magnetic field distribution and total nonthermal energy derived from the microwave spectra is also consistent with the standard picture of multiple magnetic reconnections recurring at a magnetic null point that forms above the magnetic quadrupoles and moves up with time.</P>

Improved Survival of a Patient with Gastric and Other Multiple Metastases from Ovarian Cancer by Multimodal Treatment: A Case Report

Hwangbo, Seonmi,Kwon, Oh Kyoung,Chung, Ho Young,Yu, Wansik The Korean Gastric Cancer Association 2015 Journal of gastric cancer Vol.15 No.3

Gastric metastasis from ovarian carcinoma is extremely rare and the prognosis for patients is poor. We report a case of multimodal treatment improving the survival time of a patient with gastric metastasis from ovarian cancer. A 73-year-old woman with known serous ovarian cancer was admitted to the hospital due to epigastric pain and dyspepsia. On esophagogastroduodenoscopy, a protruding mass was noted at the gastric antrum. She underwent distal gastrectomy with Billroth I anastomosis and lymph node dissection, including the para-aortic lymph nodes. The final pathology revealed gastric metastasis from ovarian serous adenocarcinoma. In this case, after cytoreductive surgery, chemotherapy was performed each time a recurrence was diagnosed, and remission was accomplished. She survived for 108 months after the first diagnosis of the metastatic tumor in the stomach. Multimodal treatment of metastatic lesions since the first diagnosis allowed the patient to survive longer than those in previous reports.

Cloning of cDNA Encoding PAS-4 Glycoprotein, an Integral Glycoprotein of Bovine Mammary Epithelial Cell Membrane

Hwangbo, Sik,Lee, Soo-Won,Kanno, Chouemon Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.4

Bovine PAS-4 is an integral membrane glycoprotein expressed in mammary epithelial cells. Complementary DNA (cDNA) cloning of PAS-4 was performed by reverse-transcriptase polymerase chain reaction (RT-PCR) with oligonucleotide probes based on it's amino terminal and internal tryptic-peptides. The cloned PAS-4 cDNA was 1,852 nucleotides (nt) long and its open reading frame (ORF) was encoded 1,413 base long. The deduced amino acid sequence indicated that PAS-4 consisted of 471 amino acid residues with molecular weight of 52,796, bearing 8 potential N-glycosylation sites and 9 cysteine residues. Partial bovine CD36 cDNA from liver also was sequenced and the homology of both nucleotide sequence was 94%. Most of the identical amino acid residues were in the luminal/extracellular domains. Contrary to PAS-4, bovine liver CD36 displays 6 potential N-glycosylation sites, which were located, except for those at positions 101 and 171, at same positions as PAS-4 cDNA. Cysteine residues of PAS-4 and CD36 were same at position and in numbers. Northern blot analysis showed that PAS-4 was widely expressed, although its mRNA steady-state levels vary considerably among the analyzed cell types. PAS-4 possessed hydrophobic amino acid segments near the amino- and carboxyl-termini. Two short cytoplasmic tails of the amino- and carboxyl-terminal ends constituted of a 5-7 and 8-11 amino acid residues, respectively.

Interaction of Norfloxacin with Super-Coiled DNA

Hwangbo, Hyun-Jung,Lee, Young-Ae,Park, Jung-Hag,Lee, Yong-Rok,Kim, Jong-Moon,Yi, Seh-Yoon,Kim, Seog K. Korean Chemical Society 2003 Bulletin of the Korean Chemical Society Vol.24 No.5

Norfloxacin, that inhibits the action of topoisomerase Ⅱ, binds to wide variety of DNA. The binding mode of this drug to double- and super-coiled DNA (ds- and scDNA) is compared in this study by various spectroscopic methods, including absorption, fluorescence, and circular dichroism(CD) spectroscopy. Hypochromism in the absorption band, negative and positive induced CD bands (respectively in 240-260 nm and 270-300 nm region) are apparent for the norfloxacin that bound to both the dsDNA and scDNA. A decrease in fluorescence is also noticed in the presence of both DNAs. Since the spectroscopic characteristics are the same for both complexes, it is imperative that the binding mode of the norfloxacin is similar in ds- and scDNA. In the presence of $Mg^{2+}$, which is a cofactor in the topoisomerase Ⅱ action, the fluorescence intensity of the scDNA-norfloxacin complex increased and the resulting fluorescence intensity and shape was identical to that in the absence of scDNA. Therefore, the addition of an excess amount of $Mg^{2+}$ may result in the extrusion of norfloxacin from scDNA.