• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2006년도 PAN PACIFIC CONFERENCE vol.2
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• pp.239-243
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• 2006

Papermaking has changed remarkably during the past 20 years, creating huge pressures on retention and drainage programs. During this time, technology has advanced from single PAM flocculants to inorganic microparticle-based programs and then to micropolymer-based programs. In today's evolving fine paper market, retention and drainage programs have to meet increased demands in many areas, such as increased speed, GAP formers, dilution headboxes, higher ash levels, reduced furnish quality, lower cost, and increased machine efficiency. Hercules recently introduced a new technology that offers performance and stability improvements and operational cost savings as compared to existing advanced technologies. $PerForm(R)$ SP Advanced Retention and Drainage Technology consists of a family of products based on a structured organic particulate that offers papermakers the ultimate flexibility for management of wet end chemistry. This paper compares $PerForm(R)$ SP Advanced Retention and Drainage Technology to inorganic microparticle and micropolymer technologies and provides multiple case histories on machines that demonstrate the benefits of the technology. In these case histories, the PerForm SP is shown to provide improved retention and drainage that results in improved performance and operational cost savings to the mill.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권8호
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• pp.1404-1422
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• 2011

In this paper, a new clear channel assessment (CCA) method: cascaded-CCA, is proposed. The primary motivation for the proposed approach is to integrate the respective advantages of two standard CCA mechanisms, energy detect and preamble detect, to arrive at a new dual threshold CCA family that can provide greater flexibility towards tuning MAC performance. Cascaded-CCA integrates energy efficiency of the energy detector (ED) and the reliability of the preamble detector (PD). The probability of detection/false alarm and power consumption of cascaded-CCA in the CCA modules of IEEE 802.11b are analyzed and compared with ED and PD as an example. The performance of cascaded-CCA is explored via MATLAB simulations that implement the CCA modules and medium access control (MAC) protocol for IEEE 802.11 and IEEE 802.15.4. Simulation results showed that cascaded-CCA improves the energy efficiency significantly compared to ED-only or PD-only CCA. In addition, ED, PD, and cascaded CCA are applied to a cognitive network scenario to validate the effectiveness of the proposed cascaded-CCA.

• Safety and Health at Work
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• 제5권2호
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• pp.73-79
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• 2014

Background: The aim of this study was to investigate the burden experienced by nursing personnel working irregular shifts in Greece and to conduct the first test of a Greek version of the Standard Shiftwork Index (SSI). Methods: A cross-sectional survey was carried out. The SSI was completed by 365 nurses and nursing assistants working shifts, including nights. Results: Female nursing personnel and those suffering from a chronic disease were most affected by working rotating shifts as they had elevated scores on the majority of the SSI scales, such as sleep, chronic fatigue, digestive and cardiovascular problems, general health questionnaire, cognitive and somatic anxiety, shift time satisfaction, engagement and disengagement strategies, languidity, flexibility, and neurotisicm. Nurses with longer working experience and those with family responsibilities also scored higher on some of the SSI scales, such as the sleep, shift time satisfaction, social and domestic disruption, disengagement strategies, morningness, and languidity scales. Conclusion: Shiftwork affects female nurses, those with chronic disease, older age, and domestic responsibilities more severely. Therefore management should take these factors into account when designing work schedules to alleviate the burden caused by shiftwork.

• 디지털융복합연구
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• 제11권11호
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• pp.169-175
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• 2013

스마트 유연근무는 개인이 직장과 가정에서 요구되는 역할 균형을 가능하도록 하는 주요 정책수단으로 최근 관심을 받아 왔다. 본 연구는 유연근무를 시범적으로 시행하고 있는 광역자치단체 공무원들을 대상으로 스마트 유연근무제 유형에 대해 살펴보고, 조직단위 별 스마트 유연근무 유형을 분석하고 근로 장소 유연성, 근로시간 유연성 과 근로 장소 및 시간 융합 유연성 등 스마트 유연근무제 유형별 성공요인을 분석하였다. 분석결과 직장영역과 가정영역 별 유연근무의 특성에 차이가 있는 것으로 나타났고 구체적으로 가정 및 직장 융합 영역이 유연근무에 가장 중요한 성공요인으로 밝혀졌으며 이에 따른 정책적 시사점을 도출하였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.171-175
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• 2005

The purpose of this study was to suggest the Support and Infill system for 126.6m$^2$-sized housing unit which meets residents' variety. The subjects were 100 housewives who lived in 126.6m$^2$-sized housing unit in the apartment complex, Busan. The data was collected by using model and questionnaire. The model was made to be same as the current 126.6m$^2$-sized floor plan. The residents preferred the flexible housing unit apartment complex. Also, the residents' needs for floor plan of housing unit were various. Therefore, the development of flexible housing unit is needed. On the basis of these findings, the support and infill system for 126.6m$^2$-sized housing unit was suggested.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제25권1호
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• pp.51-60
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• 2019

Purpose: This study aims to analyze design guidelines for hospice facilities in the US, UK, and Canada focused on design considerations and space requirements, and utilizes them as baseline data for establishing standards for Korean hospice facilities. Methods: Comparative review was carried out to investigate hospice care models, design consideration, and room sizes and requirements for design guideline of hospice facilities in United States, UK and Canada identified on electronic database and review articles, and to examine major characteristics and tendencies of hospice facilities. Results: The hospice care models characteristics in design guidelines is generally largely divided into hospital-based hospice facility, Nursing home-based hospice facility, and daycare hospice. The design considerations in hospice facilities focused on medical efficiency, flexibility, barrier-free environment, person-centered care, and stability. There is also a need for single resident room, rooms for the patient's family, and isolation room for infection control. Implications: it is recommended to establish standards for the installation and operation of required and recommended rooms and considerations when establishing the standards of hospice facilities in Korea. This Study is limited to a simple comparative analysis of the framework of guideline.

• 한국컴퓨터정보학회논문지
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• 제24권1호
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• pp.265-271
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• 2019

In this paper, the Software Education program for elementary school students in Multicultural families developed so that Multicultural students can adapt to national, school, peer, and teacher. The effects of Resilience, Communication skills and Interpersonal Relationshiop were investigated. The developed Software education program was designed in such a way that the target students became more intimate with each other and adapted to Korean culture, peers, and teachers through the analysis of the research subjects. Resilience test showed statistically significant difference in peer relationship and support, family support and interaction, teacher's interest and support, self - identity, and cultural acceptance. Communication ability test showed statistically significant differences in interpretation ability, self presentation ability, goal setting ability, and message conversion ability. The interpersonal Relationship test showed statistically significant differences in people's orientation toward people, facing people, and away from people. The results of this study indicate that the software education program for elementary school students in multicultural families has effects on adaptive flexibility, communication ability, and interpersonal ability. In the future, There is a need for continuous research with development and effectiveness of various software education programs for Multicultural students.

• Journal of Microbiology and Biotechnology
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• 제32권5호
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• pp.657-662
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• 2022

Glycosyltransferase (GT)-specific degenerate PCR screening followed by in silico sequence analyses of the target clone was used to isolate a member of family1 GT-encoding genes from the established fosmid libraries of soil actinomycetes Micromonospora echinospora ATCC 27932. A recombinant MeUGT1 was heterologously expressed as a His-tagged protein in E. coli, and its enzymatic reaction with semi-synthetic phenoxodiol isoflavene (as a glycosyl acceptor) and uridine diphosphate-glucose (as a glycosyl donor) created two different glycol-attached products, thus revealing that MeUGT1 functions as an isoflavonoid glycosyltransferase with regional flexibility. Chromatographic separation of product glycosides followed by the instrumental analyses, clearly confirmed these previously unprecedented glycosides as phenoxodiol-4'-α-O-glucoside and phenoxodiol-7-α-O-glucoside, respectively. The antioxidant activities of the above glycosides are almost the same as that of parental phenoxodiol, whereas their anti-proliferative activities are all superior to that of cisplatin (the most common platinum chemotherapy drug) against two human carcinoma cells, ovarian SKOV-3 and prostate DU-145. In addition, they are more water-soluble than their parental aglycone, as well as remaining intractable to the simulated in vitro digestion test, hence demonstrating the pharmacological potential for the enhanced bio-accessibility of phenoxodiol glycosides. This is the first report on the microbial enzymatic biosynthesis of phenoxodiol glucosides.

• 노동경제논집
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• 제25권1호
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• pp.161-182
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• 2002

취업 중 자영업이 차지하는 비중이 상당함에도 불구하고, 자영업 선택의 결정요인에 대한 연구는 일천하다. 특히 여성에게 있어 결혼과 자녀 보육이 취업에 장애요인으로 작용하는 현실을 고려할 때 상대적으로 근로시간의 선택이 자유로운 자영업은 여성의 가사노동과 경력 유지를 병행하는 하나의 대안이라 할 수 있다. 본 연구는 여성의 취업 미취업의 선택과 피고용 자영업의 선택을 동시에 고려하는 이변량 프로빗 모형(bivariate probit model)을 "한국노동패널" 1차년도(1998) 자료에 적용하는 한편 취업한 여성을 3차년도(2000)까지 추적하여 이 기간 중 발생한 노동공급의 변화-노동시장에서 퇴장, 근로시간 증가, 근로시간 감축-의 결정요인을 다항로짓 모형(multi-nomial logit model)을 이용하여 분석한다. 취업의 선택에서 어린 자녀의 존재는 유의한 부(-)의 효과를 갖은 반면 자녀 보육 보조자의 존재는 유의한정(+)의 효과를 갖는 것으로 나타나며, 자영업의 선택에서 자녀의 존재는 정(+)의 효과를 가지나 통계적으로 유의하지는 않게 나타난다. 결혼과 어린 자녀의 수의 증가는 노동시장에서의 퇴장에 유의한 부정적 효과를 미친 반면 근로시간의 감축에는 유의한 효과를 미치지 않는 것으로 나타난다. 임금근로자와 비교할 때, 피용자가 없는 자영자와 무급가족종사자는 근로시간 증가보다는 노동시장 퇴장에서 퇴장하는 확률이 낮고 피용자가 없는 자영자는 근로시간을 감축하는 확률이 낮은 것으로 나타난다. 근로시간의 유연성으로 가사노동과 시장노동의 병립이 용이한 자영업을 잠재 여성인력의 활용과 경력단절을 막는 방안으로 고려하는 정책적 함의를 갖는다.

• 여성학논집
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• 제31권1호
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• pp.93-116
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• 2014

이 논문은 2007년 6월 30일에 발생했던 이랜드 노동조합의 상암 홈에버 매장 점거파업투쟁을 다룬 다큐멘터리 영화 <외박>을 대상으로 이 영화에 재현된 여성노동자 형상을 통해 임금노동자이자 가사노동자이기도 한 '여성노동자'의 위상을 가늠해보고, 다큐멘터리라는 재현양식이 여성노동자 재현에 효과적인 측면을 논의하고자 했다. 1990년대 노동유연화 정책이 본격화되면서, 여성노동자들의 일자리가 우선적으로 유연화의 경향에 휩싸이게 되었다. 여성들은 본래 일터가 아닌 가정 안에 있어야 한다는 이데올로기와, 여성노동자들의 주요 직종은 숙련직이 아닌 비숙련직이므로 업무의 중요성이 낮다는 선입견은 이 경향을 정당화하는 근거였다. 이랜드 파업을 야기한 여성 비정규직의 대량해고 사태에도 이러한 선입견이 작용했었다. <외박>은 투쟁과정에서 '여성노동자'이기에 받는 차별과 파업현장에서도 끊임없이 엄마와 아내 역할을 수행해야 하는 그녀들의 고충을 통해 여성노동자들의 진정한 파업은 일터에서 뿐만 아니라 가정에서의 파업이 수반되어야 가능하다는 것을 보여준다. 그러나 가정은 여성노동자의 활동을 방해하는 대상이기도 하지만 여성노동자라는 정체성을 가지게 만든 원인이다. 지켜야 할 대상이자 방해물인 가족의 이중적인 의미는 그녀들이 놓인 삶의 조건인 것이다. 가사노동 전담자이자 임금노동자인 여성노동자들의 위상은 '노동자'라는 일반명사로 환원되거나 이론화되기 어려운 특성을 가진다. <외박>은 다큐멘터리라는 장르적 재현이 여성노동자들의 입장에서 그녀들의 계급투쟁을 다시 읽어낼 새로운 리얼리즘을 모색하는 하나의 방법이라는 것을 보여준 중요한 예이다.