University Community Engagement with Participatory Mapping and Community Geography

권상철,페드레갈벨렌 한국지리학회 2023 한국지리학회지 Vol.12 No.1

Universities pursue education, research, and service as their three major missions. Service-learning is a way to deliver service which combines practical learning with community activities. Reciprocal relationships become important for equal and sustainable university community partnership. Social problems are often the subject with critical perspective in community engaged service-learning. Geography has a tradition addressing community issues with fieldwork and mapping. Community mapping becomes widely adopted with the aid of geographic information technology. University and community participate together in data collection and mapping for urban poverty and indigenous rights in developed and developing countries. Environmental justice is a growing concern in which local knowledge is emphasized and marginalized communities become visible in the decision-making process. For effective learning and community empowerment, data collection and mapping need to be separated for extensive use not overwhelmed by technical skills. Socially relevant issues are another to bring attention and participation from wider communities. Community geography in such direction can play a role to fulfill university social responsibility toward sustainable future.

실업의 지역차와 지역노동시장 관점에서의 접근

권상철 한국 지리·환경 교육학회 1999 한국지리환경교육학회지 Vol.7 No.2

Unemployment has recently received numerous attentions since the IMF crisis. Most of these are concerned with the increasing numbers and rates in national scale within the perspective of single integrated labor markets. Labor markets, however, are segmented in industrial, occupational and geographical arena captured in the notion of spatial division of labor. Contrary to the policy considerations based on the integrated labor markets, local labor markets perspective provides an alternative to examine regionally differentiated unemployment conceptually and analytically to that of integrated labor markets. Compared to the integrated labor markets approach, local labor markets emphasize the geographic arena where labor demand and supply are actually met to fulfill their needs. In this regard three major concerns are distinguishable: local labor market area, segmented geographic labor market structure, and locally distinctive labor market operation. Local labor market area focuses on the spatial (mis)match between labor demand and supply in a specific place. Segmented labor markets pay attention to the segmented labor demands across industrial and/or occupational sectors. It inevitably produces geographically divided labor markets portrayed in center, semi-periphery, and peripherial regions. The geographically segmented labor market scheme focuses on what kind of jobs are available rather than what kind of economic activities are clustered in local areas. Locally distinctive labor market operations focus on the variations rising from the interplay between labor demand and supply in finer geographic scales. Local labor markets perspective provides important insights in examining unemployment differentials across space. Generating data on functional labor market areas would be the first step to facilitate research and to reveal locally specific labor market operation. But, more timely concern might be the geographic labor market structure to be examined following the notions of labor market segmentation and spatial division of labor. While theoretic 3 divisions are proposed, it is too simple to portray multi-dimentional local labor market characteristics. Local labor markets empirically examined following the theoretic notions of segmented labor markets and spatial divisions of labor provide theoretically informed empirical research of spatially differentiated labor market structure, and further a basis to clarify locally specific labor market operation.

식초절임 무의 HACCP 시스템 적용을 위한 미생물학적 위해 분석

권상철 한국식품위생안전성학회 2013 한국식품위생안전성학회지 Vol.28 No.1

This study has been performed for 150 days from February 1 - June 31, 2012 aiming at analyzing biologically hazardous factors in order to develop HACCP system for the vinegared pickle radishes. A process chart was prepared as shown on Fig. 1 by referring to manufacturing process of manufacturer of general vinegared pickle radishes regarding process of raw agricultural products of vinegared pickle radishes, used water, warehousing of additives and packing material, storage, careful selection, washing, peeling off, cutting, sorting out, stuffing (filling), internal packing, metal detection, external packing, storage and consignment (delivery). As a result of measuring Coliform group,Staphylococcus aureus, Salmonella spp., Bacillus cereus, Listeria Monocytogenes, E. coli O157:H7, Clostridium perfringens,Yeast and Mold before and after washing raw radishes, Bacillus cereus was 5.00 × 10 CFU/g before washing but it was not detected after washing and Yeast and Mold was 3.80 × 102 CFU/g before washing but it was reduced to 10 CFU/g after washing and other pathogenic bacteria was not detected. As a result of testing microorganism variation depending on pH (2-5) of seasoning fluid (condiment), pH 3-4 was determined as pH of seasoning fluid as all the bacteria was not detected in pH3-4. As a result of testing air-borne bacteria (number of general bacteria, colon bacillus, fungus)depending on each workplace, number of microorganism of internal packing room, seasoning fluid processing room,washing room and storage room was detected to be 10 CFU/Plate, 2 CFU/Plate, 60 CFU/Plate and 20 CFU/Plate, respectively. As a result of testing palm condition of workers, as number of general bacteria and colon bacillus was represented to be high as 346 CFU/Cm2 and 23 CFU/Cm2, respectively, an education and training for individual sanitation control was considered to be required. As a result of inspecting surface pollution level of manufacturing facility and devices,colon bacillus was not detected in all the specimen but general bacteria was most dominantly detected in PP Packing machine and Siuping machine (PE Bulk) as 4.2 × 103 CFU/Cm2, 2.6 × 103 CFU/Cm2, respectively. As a result of analyzing above hazardous factors, processing process of seasoning fluid where pathogenic bacteria may be prevented, reduced or removed is required to be controlled by CCP-B (Biological) and threshold level (critical control point) was set at pH 3-4. Therefore, it is considered that thorough HACCP control plan including control criteria (point) of seasoning fluid processing process, countermeasures in case of its deviation, its verification method, education/training and record control would be required. 본 연구는 식초절임 무의 HACCP (Hazard AnalysisCritical Control Point)시스템 구축을 위하여 생물학적 위해요소분석을 위한 목적으로 2012년 2월 1일~6월 31일까지 약 150일 동안 수행하였다. 일반적인 식초절임 무 제조업체의 제조공정을 참고로 하여 공정도를 작성하였으며,식초절임 무의 원료 농산물(무), 용수, 첨가물과 포장재료에 입고, 보관, 정선, 세척, 표피제거, 절단, 선별, 충진, 내포장, 금속검출, 외포장, 보관 및 출하공정에 대하여 작성하였다. 원료 무의 세척 전, 세척 후의 Coliform group,Staphylococcus aureus, Salmonella spp., Bacillus cereus,Listeria Monocytogenes, E. coli O157:H7, Clostridium perfringens,Yeast 와 Mold를 측정한 결과 Bacillus cereus 는세척 전 5.00 × 10 CFU/g 이었으나, 세척 후 검출되지 않았으며, Yeast 와 Mold 는 세척 전 3.80 × 102CFU/g, 세척 후10 CFU/g 로 감소되었으며 나머지 병원성균은 검출되지 않았다. 조미액의 pH(2~5)별 미생물의 변화를 시험한 결과모든 균이 검출되지 않은 pH 3~4를 조미액의 pH로 결정하였다. 작업장별 공중낙하균 (일반세균수, 대장균, 진균수)시험결과 내포장실, 조미액가공실, 세척실, 보관실의 미생물수는 10 CFU/Plate, 2 CFU/Plate, 60 CFU/Plate 그리고20 CFU/Plate 가 검출되었다. 종사자 손바닥 시험결과 일반세균수 346 CFU/Cm2, 대장균군 23 CFU/Cm2 로 높게 나타나 개인위생관리에 대한 교육 및 훈련이 요구 되었다. 제조설비 및 기구의 표면오염도를 검사한 결과 모든 시료에서 대장균군은 검출되지 않았고, 일반세균은 PP Packingmachin과 Siuping machine (PE Bulk)에서 가장 많은 4.2 ×103CFU/Cm2, 2.6 × 103CFU/Cm2 검출되었다. 위의 위해분석 결과 병원성미생물을 예방, 감소 또는 제거할 수 있는조미액 가공 공정이 CCP-B (Biological)로 관리되어야 하고, 한계기준은 pH 3~4로 결정하였다. 따라서 전통한과생산에의 HACCP 모델 적용을 위한 미생물학적 위해도 평가20)에서와 같이 조미액 가공 공정의 관리기준 및 이탈시조치방법, 검증방법, 교육·훈련과 기록관리 등 철저한HACCP 관리계획이 필요할 것으로 생각된다.

미국 대도시지역 노동시장의 특성과 취업 노동자의 개인소득 : 백인 , 흑인 , 동양인과 남미인 ( Labor Market Characteristics of US Metropolitan Areas and Individual Earnings Attainment : Whites , Blacks , Asians , and Hispanics )

권상철 대한지리학회 1995 대한지리학회지 Vol.30 No.2

신선초를 이용한 $\textit{Hericium erinaceum}$ 음료 개발에 관한 연구

권상철,조주현,정재현 한국식품영양과학회 2003 식품산업과 영양 Vol.8 No.3

본 연구는 생물공학적인 방법을 도입하여 폐기되는 신선초박에 H. erinaceum의 균사체를 발효시킨 배양생성물을 이용하여 기능성 건강 음료 개발을 검토 하고자 하였다. 1. 종균제조공정개발 : 기본 배지의 선발에서 Hericium erinaceum의 균사 생육에 적합한 배지를 선발하기 위하여 10여종의 고체배지를 사용하여 균사 생육 및 밀도를 조사한 결과는 YMPG 배지에서 59.8mm/14days로 균사 생육이 가장 우수한 것으로 나타났고, 최적 온도는 20-$25^{\circ}C$ 범위에 가장 생육이 좋았으며, 배지의 pH를 조절하여 균사생육을 조사한 결과, pH는 5.5, 접종비는 전배양액 9%(v/v), 배양에 적합한 배지액량은 50mL, 최적교반속도는 120rpm이었다. 이러한 최적 조건 하에서 배양 경시 변화를 살펴 본 결과 당은 거의 일정한 속도로 감소하는 반면에 건조균체량은 배양 8일째까지 증가하다가 더 이상 변화가 없었다. 2. 발효공정개발: 수분함량이 200%(v/v)에서, pH5에서의 생육속도는 90mm/30 days, $25^{\circ}C$에서의 균사생육속도는 89mm/30days로 각각 H. erinaceum균사의 생육이 가장 우수한 결과를 얻었다 3.추출공정 및 시제품 제조: 녹즙을 생산한 후 폐기되는 신선초박에 액체 종균을 접종하여 ,40일 동안 배양시켜 생육 상태가 우수한 배양생성물만을 선별하여, 열수추출방법으로 10$0^{\circ}C$, 10시간 추출한 것을 음료제조의 원료로 하고, 음료의 기호성을 향상시키기 위해 유기산 및 한방추출물을 첨가하는 균사체음료의 조성비를 얻었다.

미국 대도시지역 산업재구조화에 따른 신이민집단의 사회 · 경제적 적응양태의 도시별 다양성에 관한 연구 ( Socio-Economic Adaptation of New Immigrant Groups and their Divergence across Large US Metropolitan Areas under Economic Restructuring )

권상철,이영민 대한지리학회 1997 대한지리학회지 Vol.32 No.2

미국 대도시 교외지역의 분할된 자치정부와 공공서비스 : 세이트 루이스를 사례로 ( Suburban Government Fragmentation and Public Service Provision : A Case of St. Louis County Suburbs )

권상철 대한지리학회 1995 대한지리학회지 Vol.30 No.4

「사회적 경제 교육을 위한 통합사회 교육과정 재구성에 관한 연구」에 대한 의견

권상철 한국사회교과교육학회 2016 한국사회교과교육학회 학술대회지 Vol.2016 No.-

Effect of Chitooligosaccharides on Antioxidative Enzyme Activityin Liver of Rat Fed High Fat Diet

권상철 한국키틴키토산학회 2011 한국키틴키토산학회지 Vol.16 No.4

In this study, the antioxidant activity of chitooligosaccharides (COSs) less than 10 kDa in molecular weight was characterized in the liver of rats fed a high fat diet (n = 5, age 4 weeks). The enzyme activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione S-transferase (GST), and catalase (CAT) in the liver were measured after feeding rat a high fat diet (high fat group) or a high fat diet supplemented with 0.2 g of COSs per kg of rat body weight for 4 weeks. The activity of SOD, GPx, GST and CAT for the COSs group was higher than that of high fat group. These results indicate that the COSs of less than 10 kDa have potent antioxidant activity in rats fed with high fat diet.

데이터링크 통신을 위한 PLL 주파수합성기 설계

권상철,강경식 대한안전경영과학회 2015 대한안전경영과학회지 Vol.17 No.3

For the first time, PLL frequency synthesizer using DDS was adapted for the data link communication system which should fast transmit and receive each other with the correct information and fast Hopping System. It is inevitable to lost the synchronization by slow lock time about PLL and no cut off the noise. This paper propose the design of PLL frequency synthesizer which can make 800MHz frequency range. The PLL frequency synthesizer has three high qualities those are frequency accuracy, fast lock time and outstanding phase noise.