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International fashion trade shows as knowledge creation platforms for microenterprises
Heidi Cheng,Elina Koivisto,Pekka Mattila 한국마케팅과학회 2014 Journal of Global Fashion Marketing Vol.5 No.2
In this study, the organizational knowledge creation process of microenterprisesexhibiting in trade shows is explored. Specifically, this article examines howknowledge processes are manifested through different trade show activities. The datawas collected through semi-structured interviews and ethnographic observation atinternational B2B fashion trade shows. The study shows that knowledge is createdthrough observing and interpreting the trade show environment and other actors withinit. Moreover, knowledge processes are embedded in the informal social interaction that takes place at trade shows. In this way, the participants absorb and adopt industryspecific practices and routines through their physical proximity to other industry actors.
MICROFINANCE AND THE DECLINE OF POVERTY: EVIDENCE FROM THE NINETEENTH-CENTURY NETHERLANDS
HEIDI DENEWETH,OSCAR GELDERBLOM,JOOST JONKER 중앙대학교 경제연구소 2014 Journal of Economic Development Vol.39 No.1
Applying insights from recent literature on the financial behaviour of poor households in developing countries to the nineteenth-century Netherlands, we show that micro finance type institutions failed to alleviate the country’s persistent poverty for the same reasons found today. The numerous institutions launched failed to reach the customers targeted because, like the poor households analyzed in the modern literature, the Dutch poor lacked the money to use them and relied on a combination of makeshift and network solutions instead until rising wages from about 1870 widened their options. Consequently growth preceded finance, not the other way around.
Heidi B. Guerra,김영철 대한토목학회 2020 KSCE JOURNAL OF CIVIL ENGINEERING Vol.24 No.5
With the increasing effect of urbanization becoming more apparent through flooding and decline in downstream water quality especially from heavy rainfalls, stormwater runoff management solutions have focused on treatment and infiltration. However, there are areas with low infiltration soils or are experiencing more dry days and even drought. In this study, experiments were conducted to compare the applicability of high infiltration and low infiltration soils as a base layer in gravel-filled infiltration systems with emphasis on runoff capture and suspended solids removal. Findings showed that infiltration rates increased with the water depth above the gravel-soil interface indicating the available depth for water storage affects this parameter. Runoff capture in high infiltration systems are more affected by rainfall depth and inflow rates as compared to low infiltration systems. Based on runoff capture and pollutant removal analysis, a media depth of 0.4 − 1 m and maximum infiltration rate of 200 mm/h were recommended. Moreover, it was revealed that low infiltration systems are more susceptible to horizontal flow and that the length of the structure may be more critical than depth in this condition.
Heidi B. Guerra,Kisoo Park,Youngchul Kim 한국습지학회 2016 한국습지학회지 Vol.18 No.4
축산지역 강우유출수 처리를 위한 간헐 포기식 인공습지에서 산소공급 및 소비량을 산출하여 낮과 밤 동안의 산소수지 (oxygen balance)를 분석하였다. 조류의 광합성 활동이 활발한 얕은 습지에서 주간에는 내부 생산되는 산소가 지배적 이었다. 또한 조류에 의한 내호흡이 가장 큰 소비원인 것으로 분석되었으며 질산화와 탈질에 의한 소비량은 각각 전체 의 약 5.35%와 6.43%인 것으로 분석되었다. 조류에 의한 과도한 양의 산소소비는 포기조작에 의한 침전조류의 재부 상에 의해 초래된 것으로 후속 공정에도 지속적으로 영향을 미쳤다. 더욱이 주간에 조류의 광합성 활동에 의해 생산된 풍부한산소량은 습지에서 발생하는 산소요구량을 충족시키기에 충분한 것으로 분석되었다. 따라서 주간에 실시되는 인 위적인 포기활동은 불필요한 조작으로 판명되었다. 이와 반면에 광합성 활동이 중단되는 야간에는 조류의 내호흡작용 으로 습지내부의 산소농도가 크게 저하하였으며 이는 습지에서 탈질반응을 촉진하는 것으로 추정된다. 따라서 인위적 인 포기를 중단해도 유기물질 제거나 질소제거에 큰 영향을 미치지 않을 것으로 판단되며, 야간에 혐기성 상태의 지속 으로 악취와 같은 문제가 발생될 수 있으므로 간헐적인 모드로 운전하는 것이 타당할 것으로 판단된다. In order to assess the role of aeration in stormwater wetlands, oxygen supply and consumption in a wetland treating runoff from livestock farms were estimated and analyzed. Furthermore, oxygen mass balance was conducted during day time and night time. Internal production by algal photosynthesis dominated the oxygen production particularly in the shallow marsh due to the large amount of algae. Consequently, algal respiration was also the major oxygen depletion element with nitrification and biodegradation estimated as 5.35% and 6.43% of the total oxygen consumption. This excessive portion of oxygen consumption by algae was associated to the highly turbid water caused by the resuspension of sediment particles in the aeration pond, which also affected the subsequent wetland. Moreover, an abundance of oxygen was estimated during the day indicating that oxygen produced by algal activity is sufficient to meet the oxygen demand in the wetland. Thus, supplemental aeration was deemed not necessary at daytime. In contrast, oxygen was greatly depleted at night when algal photosynthesis stopped which induced denitrification. Therefore, it was suggested that supplemental aeration may be operated continuously instead of intermittently to avoid oxygen deficit in the wetland at night or it may be stopped entirely to further enhance denitrification.