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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
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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)
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Hwangbo, K.,Kim, Y.H. Butterworths ; Elsevier Science Pub. Co 2013 economic modelling Vol.35 No.-
Given the traditional argument that host countries' excessive competition for FDI (foreign direct investment) deteriorates the host countries' welfare, this paper examines the impact of policy competition for FDI on social welfare considering varying trade costs. Based on a model where two technologically asymmetric countries compete for FDI, we determine an equilibrium where a multinational firm relocates to a less efficient country. Moreover, we demonstrate that the policy competition for FDI between less integrated economies might improve social welfare when the multinational firm relocates to a country with a lower technology and a less competitive market. Nonetheless, we show that the traditional argument can be true when the policy competition for FDI between highly integrated economies deteriorates host countries' welfare, as supported by the empirical evidences of moderated competition for FDI within EU member countries.
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Hwangbo, Bin,Kim, Seok Ki,Lee, Hee-Seok,Lee, Hyun Sung,Kim, Moon Soo,Lee, Jong Mog,Kim, Hyae-Young,Lee, Geon-Kook,Nam, Byung-Ho,Zo, Jae Ill Elsevier 2009 Chest Vol.135 No.5
<P>BACKGROUND: The role of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) following integrated PET/CT scanning in mediastinal staging of non-small cell lung cancer (NSCLC) has not been assessed. METHODS: We prospectively evaluated the diagnostic values of PET/CT scanning and EBUS-TBNA for mediastinal staging in 117 patients with potentially operable NSCLC with accessible mediastinal lymph nodes (diameter range, 5 to 20 mm) by EBUS-TBNA. Subgroup analysis according to histologic type was performed. RESULTS: Of 30 cases of mediastinal metastasis, 27 were confirmed by EBUS-TBNA and 3 were confirmed by surgery. EBUS-TBNA results confirmed all cases with true-positive PET/CT scan findings and six of nine cases with false-negative PET/CT scan findings. The sensitivity, specificity, positive predictive value, negative predictive value (NPV), and accuracy of EBUS-TBNA in the detection of mediastinal metastasis were 90.0%, 100%, 100%, 96.7%, and 97.4%, respectively. For PET/CT scans, the values were 70.0%, 59.8%, 37.5%, 85.2%, and 62.4%, respectively (p = 0.052; p < 0.001; p < 0.001; p = 0.011; p < 0.001, respectively). In adenocarcinoma (n = 55), EBUS-TBNA detected four of six cases with false-negative PET/CT scan findings, and the NPV was higher for EBUS-TBNA than for PET/CT scans (94.6% vs 77.8%, respectively; p = 0.044). In squamous cell carcinoma (n = 53), the NPV of EBUS-TBNA and PET/CT scans were similarly high (97.9% vs 96.3%, respectively; p = 0.689). CONCLUSIONS: EBUS-TBNA was an effective invasive method following PET/CT scanning in the mediastinal staging of potentially operable NSCLC. In mediastinal PET/CT scan-positive cases, EBUS-TBNA was an excellent tool for detecting mediastinal metastasis. Even in mediastinal PET/CT scan-negative cases, EBUS-TBNA can be useful for confirming mediastinal metastases, especially in adenocarcinoma.</P>
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Hwangbo, Wonju,Park, Young Il Asian Society for Innovation and Policy 2021 Asian Journal of Innovation and Policy Vol.10 No.1
This study investigated the policy instruments pertinent to the establishment of a regional innovation system in the Mekong Delta that facilitates the development of a countermeasure towards various issues of industrial and technological nature. First, we conducted the research with regard to the status and environment of the region. Second, a field visiting survey was implemented to analyze the results of international efforts and regional capacity to solve the problems attendant upon introducing technologies related to the Fourth Industrial Revolution. Third, we derived the key policy issues and challenges from the results of the field visiting survey and experts' conference with a deep focus on technological transfer and international cooperation to enhance the capability in the science and technology field. Fourth, we conducted the opinion survey of the experts from Korea and Vietnam to converge local opinions from both countries and analyzed the results. The range of research subjects is responding to climate change, managing water resources, coordinating energy and industrial structure, making a resilient Mekong regional ecosystem, smartification of local cities, and improving the life quality of citizens, and so on. The results of this study are expected to be the beginning of fundamental research in the mid to long-term view of the Mekong Delta region innovation system of Korea and Vietnam and to evaluate the master plan.
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Transoesophageal needle aspiration using a convex probe ultrasonic bronchoscope
HWANGBO, Bin,LEE, Hee Seok,LEE, Geon-Kook,LIM, Kun-Young,LEE, Soo-Hyun,KIM, Hyae-Young,LEE, Jong-Yeul,ZO, Jae Ill Blackwell Publishing Asia 2009 Respirology Vol.14 No.6
<P>ABSTRACT</P><P>Background and objective: </P><P>Although endoscopic ultrasound-guided fine needle aspiration can be helpful when combined with bronchoscopic procedures, endoscopic ultrasound-guided fine needle aspiration is not available as a conjunctive procedure with bronchoscopy at many institutions. This study evaluated the feasibility and the additional role of transoesophageal fine needle aspiration using a convex probe ultrasonic bronchoscope (EUS-B-FNA).</P><P>Methods: </P><P>We analysed 84 patients who underwent EUS-B-FNA between Oct 2007 and May 2008. Bronchoscopy and/or endobronchial ultrasound-guided transbronchial needle aspiration was performed on 83 patients prior to EUS-B-FNA.</P><P>Results: </P><P>EUS-B-FNA was performed on 89 lesions (1.7 aspirations/lesion) including three lung masses and 86 lymph nodes (nodal stations 1, 3P, 4L, 5, 7, 8, 9 and 10L) without complication. Sample adequacy was 95.4% for each aspiration and 100% for each lesion. Of the 89 lesions, 39 malignant lesions were confirmed by EUS-B-FNA. EUS-B-FNA provided additional diagnostic gain to bronchoscopic procedures in 16 patients (19.0%): 3 lung cancers were upstaged, 11 lung cancers were pathologically confirmed, and 2 patients were diagnosed with mediastinal metastasis from an extrathoracic malignancy. This gain was obtained by the sampling of inaccessible (<I>n</I> = 4) or difficult lesions by endobronchial ultrasound-guided transbronchial needle aspiration (<I>n</I> = 2) or when bronchoscopy was difficult due to dyspnoea, cough, brain metastasis or other conditions (<I>n</I> = 10).</P><P>Conclusions: </P><P>EUS-B-FNA is a technically feasible and safe procedure, which may be an alternative to endoscopic ultrasound-guided fine needle aspiration as a procedure that complements bronchoscopy. Additional diagnostic yield can be obtained by combining EUS-B-FNA with bronchoscopic procedures.</P>
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Utilization of house fly-maggots, a feed supplement in the production of broiler chickens.
Hwangbo, J,Hong, E C,Jang, A,Kang, H K,Oh, J S,Kim, B W,Park, B S The Academy 2009 Journal of environmental biology Vol.30 No.4
<P>Recent studies have suggested the utilization of maggots as a feed supplement forenhanced broiler performance. Maggots, which are a major dietary source of protein, appear during the biodegradation of chicken droppings using house flies. The objective ofthe present study was to investigate the effect of maggot supplementation on the meat quality and growth performance of broiler chickens. A total of 600 one-day-old male commercial broiler chicks (Ross) were randomly assigned into 5 treatment groups consisting of 40 replicates of 3 birds. The birds were fed either a basal diet or the basal diet supplemented with 5.0, 10.0, 15.0 and 20.0% maggots. Overall, broiler chicken performance was influenced by the optimal amino acid profile; high protein (63.99%) and essential amino acid content (29.46%), or high protein digestibility (98.50%) of the maggots. Maggot supplementation caused linear increases in live weight gain but not the feed conversion ratio. The diets of 10 and 15% maggots was the most efficient in terms of average weight gain forthe 4-5 week old broiler chickens (p<0.05). It also significantly increased dressing percentage, breast muscle, and thigh muscle (p<0.05). No differences were observed forliver abdominalfat, or meat color, and the crude protein contents of breast muscle were constant. However, in the maggot-fed broilers, breast muscle lysine and tryptophan levels increased significantly as compared to the birds fed the basal diet (p<0.05). These results indicate that feeding diets containing 10 to 15% maggots in chicken dropping after biodegradation can improve the carcass quality and growth performance of broiler chickens.</P>
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