• 한국과학교육학회지
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• 제28권7호
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• pp.730-748
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• 2008

Students often have tenacious physics misconceptions and many studies were conducted on engendering conceptual change. Correspondingly, there is much literature on alternative assessment and its role in student learning. This is a comparison study on using alternative assessments to improve common students' misconceptions in GCE Advanced Level Physics. This research also aims to affirm alternative assessment as a valid tool for learning and promote its use. This study involved two classes with 24 students each. For four weeks, electromagnetism was taught to students using the same classroom pedagogies but with different assignments. The control group completeda standard drill-and-practice assignment while the experimental group finished an alternative assessment. From the preliminary results, students who undertook the alternative assessment and the traditional assessment both improved, however, the treatment group did not perform statistically significantly better than the control group. The reasons will be discussed and commented and it is expected to have significant improvement on rectifying misconceptionsupon next batch of experimentation groups.

• 대한수학교육학회지:학교수학
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• 제15권2호
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• pp.263-288
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• 2013

본 연구는 전통적인 지필평가의 단점을 보완하기 위한 대안평가의 방법 중 하나인 면접평가의 현장 적용에 대한 실천적 방안을 제시하기 위하여 실행된 연구이다. 면접평가에 대한 다양한 이론들을 분석하고, 이를 토대로 수학학습 평가에서 면접평가 현장 적용을 위한 평가도구로서 면접평가 점검목록표 및 채점기준표를 개발하였다. 개발한 면접평가 점검목록표 및 채점기준표를 평가 목적에 따라 학생특성 면접평가와 사고과정 면접평가로 나누어 학교현장에 적용하고 결과를 분석함으로써 현장 적용의 실제적 활용가능성을 모색하고 논의사항을 제시하였다.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.294-298
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• 2015

In the United States, the completion of Construction Work Zone (CWZ) impact assessments for all federally-funded highway infrastructure improvement projects is mandated, yet it is regarded as a daunting task for state transportation agencies, due to a lack of standardized analytical methods for developing sounder Transportation Management Plans (TMPs). To circumvent these issues, this study aims to create a spatiotemporal modeling framework, dubbed "SWAT" (Spatiotemporal Work zone Assessment for TMPs). This study drew a total of 43,795 traffic sensor reading data collected from heavily trafficked highways in U.S. metropolitan areas. A multilevel-cluster-driven analysis characterized traffic patterns, while being verified using a measurement system analysis. An artificial neural networks model was created to predict potential 24/7 traffic demand automatically, and its predictive power was statistically validated. It is proposed that the predicted traffic patterns will be then incorporated into a what-if scenario analysis that evaluates the impact of numerous alternative construction plans. This study will yield a breakthrough in automating CWZ impact assessments with the first view of a systematic estimation method.

• 한국학교수학회논문집
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• 제16권2호
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• pp.289-318
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• 2013

본 연구는 전통적인 지필평가에서 수학적 과정 요소를 평가하기 어려운 단점을 보완하기 위하여 대안평가의 방법 중 하나인 관찰 평가의 현장 적용에 대한 실천적 방안을 제시한 연구이다. 수학 학습 평가에서의 관찰평가 현장 적용의 활성화 방안을 모색하고자 관찰평가에 대한 다양한 이론들을 분석하여 평가도구를 개발하였다. 또한 개발한 도구를 학교현장에 적용하고 그 결과를 분석함으로써 학교 현장에서 지속 가능하고 실행 가능한 활용 방안을 제시하였다. 이러한 연구 결과는 학교 현장에서 관찰 평가를 실행하고자 하는 교사들에게 유용한 지침이 될 것이다.

• 재활치료과학
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• 제4권2호
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• pp.63-71
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• 2015

Objective : The purpose of this study was to investigate the effects of vibratory stimulation applied to the left forearm on unilateral neglect in patients with stroke. Methods : The subjects were 11 unilateral neglect patients with stroke. They were divided into 2 groups; 6 experimental subjects and 5 control subjects. Both groups received standardized rehabilitation program and occupational therapy for the intervention of unilateral neglect in a day. In random order, line bisection test (LBT), Albert test, and star cancellation test (SCT) were conducted at baseline, the next day. During the process of all assessments of the next day, vibration stimulation was provided for the 6 subjects in the experimental group (EG), while the 5 subjects in CG carried out all assessments without vibration stimulation. Result : No significant differences were found between groups on any demographic variable or baseline assessments scores. In the next day, there was significant improvement in the EG for the LBT(p<0.05), Albert's test(p<0.05), and SCT(p<0.05). However, there was no significant improvement in the CG for the LBT(p<0.05), Albert's test(p<0.05), and SCT(p<0.05). Conclusion : These result indicate that vibratory stimulation has a positive effect on the unilateral neglect, and may be considered as alternative choice in clinical occupational therapy for reducing unilateral neglect.

• 한국측량학회지
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• 제35권4호
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• pp.213-220
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• 2017

This study examines the limitations of existing crime mapping that relies mainly on reported crime data, suggests a crime mapping method based on experts' and users' assessments of a neighborhood environment as an alternative approach, and conducts a case study on a real-world site by applying the suggested approach. According to the results of the case analysis, while the areas adjoining arterial roads with heavy pedestrian traffic were shown as high crime risk areas in the crime map based on actual reported crime data, the areas adjoining local roads with low pedestrian traffic were high-risk areas in the crime risk area map based on experts' and residents' evaluations. This study makes a contribution to the field in that it demonstrates the detailed application process of crime risk area mapping according experts' and residents' evaluations, compares the results with those of an existing crime map, and finally shows that the former can function as a complement to the latter.

• Journal of Ecology and Environment
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• 제43권2호
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• pp.246-253
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• 2019

Background: Water use efficiency (WUE) is an indicator of the trade-off between carbon uptake and water loss to the atmosphere at the plant or ecosystem level. Understanding temporal dynamics and the response of WUE to climatic variability is an essential part of land degradation assessments in water-limited dryland regions. Alternative definitions of and/or alternative methodologies used to measure WUE, however, have hampered intercomparisons among previous studies of different biomes and regions. The present study aims to clarify semantic differences among WUE parameters applied in previous studies and summarize these parameters in terms of their definition and methodology. Additionally, the consistency of the responses of alternative WUE parameters to interannual changes in moisture levels in Northeast Asia dryland regions (NADRs) was tested. Results: The literature review identified more than five different WUE parameters defined at leaf and ecosystem levels and indicates that major conclusions regarding the WUE response to climatic variability were partly inconsistent depending on the parameters used. Our demonstration of WUE in NADR again confirmed regional inconsistencies and further showed that inconsistencies were more distinct in hyper- and semi-arid climates than in arid climates, which might reflect the different relative roles of physical and biological processes in the coupled carbon-water process. Conclusions: The responses of alternative WUE parameters to drying and wetting may be different in different regions, and regionally different response seems to be related to aridity, which determines vegetation coverage.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제26권3호
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• pp.273-299
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• 2012

최근 서술형 평가의 비중이 확대되고 있는 가운데, 본 연구에서는 선행 연구들을 바탕으로 경기도 창의 서술형 평가와 미국 오하이오 주 평가의 서술형 평가에서 제시한 서술형 평가의 정의, 문항 유형, 제공하는 정보, 채점 기준 및 그 활용 등에 초점을 두어 비교 분석함으로써 서술형 평가 체계에 대한 대안적 발전 방향을 모색하였다. 분석 결과, 서술형 평가의 정의와 측정하고자 하는 사고의 종류와 다양성뿐만 아니라, 두 평가가 제공하고 있는 평가관련 자료에 대한 접근 용이성 및 다양성, 교육당사자들에게 제공하는 자료의 구체성 및 실용성, 서술형 문항의 채점 방법과 기준, 그 활용에 있어서도 많은 차이점들이 발견되었다. 연구 결과를 종합하여 볼 때, 우리나라 현 서술형 평가 체제에서 학생들의 다양한 능력을 발휘하고 평가할 수 있는 문항 개발, 교육당사자들에게 명확하고 구체적인 정보 제공, 효율적인 서술형 평가 체제의 강화가 필요함을 알 수 있었다.

• International Journal of Naval Architecture and Ocean Engineering
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• 제6권3호
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• pp.598-625
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• 2014

To support the procedure for determining an optimal liquefaction cycle for FLNG FEED, an ontological modeling method which can automatically generate various alternative liquefaction cycles were carried out in this paper. General rules in combining equipment are extracted from existing onshore liquefaction cycles like C3MR and DMR cycle. A generic relational model which represents whole relations of the plant elements has all these rules, and it is expressed by using the system entity structure (SES), an ontological framework that hierarchically represents the elements of a system and their relationships. By using a process called pruning which reduces the SES to a candidate, various alternative relational models of the liquefaction cycles can be automatically generated. These alternatives were provided by XML-based formats, and they can be used for choosing an optimal liquefaction cycle on the basis of the assessments such as process simulation and reliability analysis.

• Archives of Plastic Surgery
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• 제41권3호
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• pp.285-289
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• 2014

The composite anterolateral thigh flap with vascularized fascia lata has emerged as a workhorse at our institution for complex Achilles defects requiring both tendon and soft tissue reconstruction. Safe elevation of this flap, however, is occasionally challenged by absent or inadequate perforators supplying the anterolateral thigh. When discovered intraoperatively, alternative options derived from the same vascular network can be pursued. We present the case of a 74-year-old male who underwent composite Achilles defect reconstruction using a segmental rectus femoris myofascial free flap. Following graduated rehabilitation, postoperatively, the patient resumed full activity and was able to ambulate on his tip-toes. At 1-year follow-up, active total range of motion of the reconstructed ankle exceeded 85% of the unaffected side, and donor site morbidity was negligible. American Orthopaedic Foot and Ankle Society and Short Form-36 scores improved by 78.8% and 28.8%, respectively, compared to preoperative baseline assessments. Based on our findings, we advocate for use of the combined rectus femoris myofascial free flap as a rescue option for reconstructing composite Achilles tendon/posterior leg defects in the setting of inadequate anterolateral thigh perforators. To our knowledge, this is the first report to describe use of this flap for such an indication.