• Journal of radiological science and technology
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• v.40 no.2
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• pp.317-322
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• 2017

High-tech medical equipment has increased the utilization of radiation in the medical field. As a result, research on radiation protection using natural materials has become an important social issue. Selenium is a natural substance that is highly expressed in prostate known that an essential role in prostate cells. Selenium was orally administered to Rat and irradiated with 10 Gy of radiation. Then, the prostate tissue w as used as a target organ for 1 day, 7 days and 21 days to investigate the radiation protection effect of selenium through changes of blood components, Superoxide Dismutase and histological changes. As a result, there was a significant protective effect of hematopoietic immune system(hemoglobin concentration, neutrophil, platelet) in the group irradiated with selenium(p<0.05). the observation of tissue changes selenium is an effective component to increase Superoxide Dismutase activity, and it was confirmed that it has an effect of inhibiting the expression of hypertrophy of prostate by irradiation. Therefore, it is considered that selenium can be utilized as a radioprotective agent by inducing prevention of prostate-related diseases.

• Proceedings of the Korea Technology Innovation Society Conference
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• 1998.05a
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• pp.16-16
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• 1998

기술혁신과 제도변혁의 와중에서 미국을 위시하여 우리나라, 일본, EU, 싱가포르등 세계 각국들은 경쟁적으로 2010년까지 초고속정보망을 구축할 것을 계획하고 있다. 더나아가서 미국 정부는 세계적인 초고속정보망 (Global Information Infrastructure: GII)을 구축하는 것을 계획하고 있다. GII 추진을 주도하고 있는 미국을 영상, 소프트웨어, 방송, 게임 등의 각종 멀티미디어 서비스의 절대적 경쟁력을 미국에서 뿐만 아니라 GII를 통해 세계시장으로 확대, 보호하겠다는 전략적 의미를 갖고 있다고 볼 수 있다. 미국의 GII 추진전략에 대응하여 일본은 AII 라는 아시아판 초고속통신망 구축과 개방화를 제안하였으며, 우리나라 정부는 APII라는 이름으로 아시아, 태평양지역 국가들을 대상으로 하는 초고속통신기반을 구축할 것을 제시하였다. 한국의 APII전략은 아시아, 태평양 지역 중심으로 한국의 국가적 위상을 제고하는 한편 우리나라 기업의 국제진출을 위한 전진기지로서의 활용측면에서 유효하다는 의미로서 제시하였다. 그러나, 우리나라가 제시한 APII의 청사진은 세계 정보통신시장을 중심으로 볼 때 경쟁력을 갖고 있는 정보통신부분이 반도체이외에는 전무하다는 측면에서 잘못하면 APII라는 전략은 미국이나 일본의 정보통신망 구축에 이용당할 가능성이 높은 무의미한 전략적 의미를 갖고 있는 것으로 보인다. 따라서 본 연구에서는 미국이 구축하고자 하는 GII체제와 병행하여 우리나라 정보통신산업을 육성, 발전시키기 위한 대응전략이 어떤 방향으로 전개되어야 할 것인지를 제시하기 위하여 GII가 갖고 있는 전략적 의미를 산업조직측면에서 살펴보고자 하였다. GII구축으로 인하여 세계의 정보통신 대기업은 초대기업으로 성장할 수 있는 기회이지만 중소기업 역시 대기업으로 성장할 수 있는 기회이다. 따라서 우리나라 정부는 정보통신산업정책을 초고속망 구축위주인 대기업 중심체제에서 중소기업이 참여 가능한 통신기기산업이나 멀티미디어 산업으로의 유인전환을 촉진할 필요가 있다. 다음으로 GII 구축에 따라 정보통신기업의 전략적 제휴 내지 합병이 활발히 촉진되고 있는 상황을 감안하여 볼 때 국내의 통신산업 역시 전략적 제휴 내지 합병이 가능할 수 있도록 정부규제를 완화할 필요가 있다. 그리고 정보통신서비스업체 역시 나름대로 독과점 산업인 통신기기업체내지 소프트웨어 산업으로의 진출이 가능할 수 있도록 상호진출을 허용할 필요가 있다고 본다. 이를 위해서 우리 나라 정부 역시 미국처럼 새로운 통신개혁법을 만들 필요가 있다. 새로운 통신개혁법의 핵심적인 사항으로서 첫째, 통신과 CATV간의 상호진입을 허용, 둘째, 통신사업자가 통신관련 기기산업에 참여할 수 있는 규제완화를 허용, 셋째, 유아단계에 있는 소프트웨어 및 컨테트산업을 육성하는데 산업육성책 수립 등을 적극적으로 추진하여야 할 것이다. 그리고 현재 국내 재벌기업들로 구성되어 있는 기반산업을 지원하는 기술개발 지원체제와 육성정책을 소프트웨어 및 컨텐트의 응용산업으로 개편할 필요성도 제시되며, 이를 위해 범부처 차원에서 소프트웨어 및 컨텐트 육성정책을 지원하는 종합적인 대책을 마련해야 한다고 본다.

• Korean Journal of Food Science and Technology
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• v.49 no.4
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• pp.444-452
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• 2017

This study aims to investigate the physicochemical properties of the extruded rice snack with added the containing mealworm. Adding the mealworm addition enhanced protein and unsaturated fatty acid contents, which are insufficient in rice. As the extrusion process variables, the death temperatures and moisture content were set to at respective 130 and $140^{\circ}C$, and 20 and 25%, respectively. The expansion ratio increased as with death temperature, whereas the increased moisture content decreased. The nitrogen solubility index and protein digestibility index increased with the added mealworm content of mealworm increased. As mealworm content and death temperature, and moisture content increased, DPPH radical scavenging activity significantly increased but the rancidity decreased. As the result of this study, confirmed that the addition of mealworm to the extruded rice snack was the confirmed as the effective process to improve nutrition, and antioxidation. Also, death temperature and moisture content have an effect on softened the texture of extruded rice snack.

• Journal of Life Science
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• v.28 no.2
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• pp.141-147
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• 2018

This study aimed to analyze the contents of rutin, procyanidin B3, quercetin, and kaempferol, known to have antioxidant, anti-inflammatory, and anti-carcinogenic effects, among the polyphenol types contained in grape pruning stem extracts (GPSE). It utilized grape stems discarded after harvest to measure the effects of GPSE on skin moisture, inhibition of skin cell proliferation, and anti-inflammatory activity on the damaged skin of HR-1 mice induced with ultraviolet B (UVB), and to verify the applicability of GPSE as a material for functional food and functional cosmetics. The polyphenol was extracted from grape pruning stems with 80% EtOH, and then the extract was used while storing at $-20^{\circ}C$, after filtering, concentrating, and freeze-drying it. The content of an active ingredient of GPSE was analyzed using high performance liquid chromatography (HPLC). From 53 kg of the grape pruning stem specimen, 2.34 kg of the EtOH fraction extracts were extracted to achieve a 4.42% yield ratio. Analysis of the active ingredients showed 0.28 mg/g of procyanidin B3, 12.81 mg/g of rutin, 0.51 mg/g of quercetin, and 8.24 mg/g of kaempferol. After UVB irradiation on the dermis, to confirm the degree of inhibition of collagen synthesis, we examined the protein expression of MMP-9 using immunohistochemical staining. The results of this study confirm the existence of active polyphenol types, such as rutin, kaempferol, quercetin, and procyanidin B3, in GPSE. Moreover, the study found that GPSE has anti-collagenase effects and it decreases the effects of UV damage on skin barrier function. GPSE is a functional ingredient with a potential for skin protection effects, and it has high utilization potential as an ingredient for functional cosmetics.

• Journal of Korea Technology Innovation Society
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• v.10 no.2
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• pp.284-309
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• 2007

Technology transfer (TT) consortium is an affiliation of two or more public research institutions (PRIs) that participate in a common technology transfer activity or pool their resources together, with the objective of facilitating technology transfer. Based on empirical analysis of five regional TT consortia (2002-2006) operating in Korea, this paper suggests their effectiveness by employing a TT performance index (TTPI) and identifies possible characteristics involved, such as motivations, facilitators, barriers, and challenges. TTPI devised in the paper is a new composite TT performance index to measure how much the TT performance of a PH changed in a designated year compared to a base year. All the performance indicators of TTPI are well-structured based on the unique TT process that is prevalent in Korea. Further, TTPI can bring different size and focus of PRIs to the same scale for comparison by double-normalizing. The paper tests the effectiveness of TT consortium for the escalation of TT performances in member PRIs by highlighting the differences of TTPI's between 2005 and 2001. As a result, the paper found that the escalation of TTPI for member PRIs was greater than that for non-member PRIs. As for the characteristics of TT consortia, their respective factors obtained by TT expert survey were computed with proportion tests of differences (Z tests) to compare two perspectives between intramural and extramural groups. One of key findings is that there is general homogeneity in stakeholder perspectives regarding motivations, facilitators, barriers, and challenges. Some notable responses are as follow; the most probable motivation to join TT consortium is to share or exchange TT competences for enhanced performance. Second, the most probable facilitator is professional capability of consortium-hired personnel. Third, the foremost probable barriers to effective TT consortium are frequent change of consortium director and passive participation of member PRIs. Lastly, both publicizing TT consortia and developing performance metrics are the most important for the improvement of TT consortia. The understanding of the characteristics of TT consortia increases the likelihood of accelerated success, because TT consortia path from formation to termination encompasses many concepts, processes, principles, and factors. Finally, an analysis of the survey data combined with expert interview and observation data led the authors to derive five conditions as being critical to viable TT consortia in Korea at early stage of technology transfer systems. These conditions include policy infrastructure, proactive participation, excellent professionals, personal motivation, and teaming mechanisms. It is expected that the Korean evidence is a starting point to develop and refine the theory of TT consortia and for additional studies in other countries.

• Progress in Medical Physics
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• v.25 no.4
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• pp.255-263
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• 2014

The dosimetry of very small fields is challenging for several reasons including a lack of lateral electronic equilibrium, large dose gradients, and the size of detector in respect to the field size. The objective of this work was to evaluate the suitability of a new commercial synthetic diamond detector, namely, the PTW 60019 microDiamond, for the small field dosimetry in cyberknife photon beams of 6 different collimator size (from 5 mm to 30 mm). Measurements included dose linearity, dose rate dependence, output factors (OF), percentage depth doses (PDD) and off center ratio (OCR). The results were compared to those of pinpoint ionization chamber, diamond detector, microLion liquid Ionization chamber and diode detector. The dose linearity results for the microDiamond detector showed good linearly proportional to dose. The microDiamond detector showed little dose rate dependency throughout the range of 100~600 MU/min, while microLion liquid Ionization chamber showed a significant discrepancy of approximately 5.8%. The OF measured with microDiamond detector agreed within 3.8% with those measured with diode. PDD curves measured with silicon diode and diamond detector agreed well for all the field sizes. In particular, slightly sharper penumbras are obtained by the microDiamond detector, indicating a good spatial resolution. The results obtained confirm that the new PTW 60019 microDiamond detector is suitable candidate for application in small radiation fields dosimetry.

• Journal of Global Scholars of Marketing Science
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• v.18 no.1
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• pp.115-139
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• 2008

Since financial crisis of IMF resulted in intensive competitiveness and adverse management environment, many hotel industries have responded it with restructuring. Since this restructuring is accompanied by reduction of employees, hence comes the recognition of justice in the procedure of restructuring. When the surviving employees in the restructuring process recognize unfairness in the procedure and practical operations, organization effectiveness can not be maintained due to losing trust of their employers. In this paper I will examine the relationship between validity of restructuring and compensatory programs for layoffs and surviving employees' trust of the employers. Also I will find out the relationship between remaining employees' trust of the employers and their job satisfaction and organization commitment. Through this relationship, we can prepare an alternative to reduce negative effect of restructuring. The hypotheses of this study are proposed as follows: H1: The higher surviving employees' recognition of procedural justice in restructuring process is, the higher their trust with a manager of the company is. H2: The higher surviving employees' recognition of distributive justice in restructuring process is, the higher their trust with a manager of the company is. H3: The higher surviving employees' recognition of procedural justice in restructuring process is, the higher their job satisfaction is. H4: The higher surviving employees' recognition of distributive justice in restructuring process is, the higher their job satisfaction is. H5: The higher surviving employees' recognition of procedural justice in restructuring process is, the higher their organization commitment is. H6: The higher surviving employees' recognition of distributive justice in restructuring process is, the higher their organization commitment is. H7: The higher surviving employees' trust with a manager of the company in restructuring process is, the higher their job satisfaction is. H8: The higher surviving employees' trust with a manager of the company in restructuring process is, the higher their organization commitment is. For the purposes of this study, employees working in luxury hotels located in Seoul were targeted. Self-administered questionnaires were distributed to those who consented with the investigation after explaining the purpose of the survey. A total of 500 questionnaires were distributed and 450 questionnaire were returned to the researcher for analysis. 430 of the returned questionnaires were used for analysis. As for the education for this survey, 250 junior college graduates or under (58.1%), 143 college graduates (33.3%) and 37 graduate school graduates (8.6%). As for the marital status, 315 persons (73.3%) are single and 115 are married (26.7%). As for the monthly income, 49 people (11.48%) are less than 2 million won, 148 (34.4%) are between 2 million and less than 2.5 million won, 153 (35.6%) are between 2.5 million to less than 3 million won, 80 (18.6%) are more than 3 million won. As for the workplace, 293 people (68.1%) work for the F&B department, 73 (17.0%) for rooms department, 41 (9.5%) for operation/ marketing department, 23 (5.3%) for account/ general affair department. As for the period of employment, 85 people (19.8%) are less than 5 years, 150 (34.9%) are between 6 to 9 years, 143 (33.3%) are between 10 to 14 years. and 52 (3.%) are more than 15 years. An exploratory factor analysis was used to survey validity and reliability of calculating tool on perceived values. This study used correlation between individual items and whole items and Cronbach's alpha value of multiple-item scale which is usually used to assess scale and reliability. Reliability of conceptual sub-dimension was assessed by basing on repeated procedure of correlation between individual items and whole items and factor loading. 1. Verification of correlation between validity of restructuring and trust This research showed that procedural and distributive justice of restructuring affects trust positively. The path coefficient between procedural justice of restructuring and trust is 0.719(t=10.135, p=0.000), and thereby the higher procedural justice results in higher trust. The path coefficient between distributive justice of restructuring and trust is 0.160(t=3.291, p=0.001), and thereby the higher distributive justice results in higher trust. Hence H1 and H2 are accepted. 2. Verification of correlation between validity of restructuring and job satisfaction The path coefficient between procedural justice of restructuring and job satisfaction is 0.179(t=2.202, p=0.028), and thereby the higher procedural justice results in higher job satisfaction. The path coefficient between distributive justice of restructuring and job satisfaction is 0.074(t=1.620, p=0.105), and thereby distributive justice of restructuring has no relationship with job satisfaction. Hence H3 is accepted, but H4 is removed. 3. Verification of correlation between validity of restructuring and organization commitment The path coefficient between procedural justice of restructuring and organization commitment is 0.188(t=2.466, p=0.014), and thereby the higher procedural justice results in higher organization commitment. The path coefficient between distributive justice of restructuring and organization commitment is 0.118(t=2.720, p=0.007), and thereby the higher distributive justice results in higher organization commitment. Hence H5 and H6 are accepted. 4. Verification of correlation between trust and job satisfaction The path coefficient between trust and job satisfaction is 0.610(t=6.736, p=0.000), and thereby the correlation has a meaningful result. Since the higher trust of the employer results in higher job satisfaction, H7 is accepted. 5. Verification of correlation between trust and organization commitment The path coefficient between procedural justice of restructuring and job satisfaction is 0.446(t=5.547 p=0.000), and thereby the higher trust of the employer results in higher organization commitment. Hence H8 is accepted. This research aimed to help the employers of hotel industries by analyzing the effects of validity of restructuring on employees' trust, job satisfaction and organization commitment. The research found that employer's validity of restructuring has significant affects on the degree of employee's trust with a manager, thereby reducing the negative effects of restructuring and enhancing organization commitment and job satisfaction. The principal purpose of this research is to confirm the correlation between employees' perceived validity of restructuring and their trust with a manager. Also whether this correlation results in competitive edge of the company is also investigated. It is also pointed out that employees had to participated the procedure of restructuring, sharing the philosophy and reason of restructuring. This participation and furthermore compensatory methods can reduce employees' anxiety of organization operations. Variable of trust appeared to have impact on intermediation effect between perceived variable of validity and job satisfaction, organization commitment, so that increase of trust with a manager plays an crucial role in increasing organization effectiveness. Since this research did not cover whole hotel industries which underwent restructuring, it showed a limit. Unlike previous studies which dealt with validity and trust of superior bosses, this research focussed on employers. Also the organization citizenship which is not considered in this study will be dealt with in the future study.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.343-347
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• 2008

There are two kind of system in hotel for evaluating management. the first is infra system, for example Front management system - reservation system, C/I, C/O system, POS system , web system, call center management -, Back office system, interface system, and so on which manage direct control for hotel, and next is strategic system, for example BSC , CS . which is supporting hotel management. The purpose of this study was to find using the Balanced Scorecard to evaluate hotel management perfomance. Management performance is based on productivity, quality, time, effect, and responsiveness. Hotel economic value is not equal visual asset which is measured financial value. It is include hotel brand, image, customers who have good loyalty, employees who give customers special service, and systems which was affected by internal process. In conclusion, innovation, growth, internal system process, empioyee and customer have effect hotel performance. Therefore hotel has to know non-financial performance which has positively relate to financial performance.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 1998.11a
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• pp.19-20
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• 1998

오버레이용접에 의한 표면개질기술(Weld Surfacing or Hardfacing Technology)은 내식성, 내 마모성, 또는 내열성을 갖는 합금의 용접재료를 모재 표면에 균일하게 용착(오버레이:Ovedayer)시킴으로써 목적하는 재료의 표면성질을 향상시키는 표면처리의 한 방법이으로써 1922년 Stoody가 Steel Tube에 Cr합금 분말을 충진한 용접봉을 제조하여 석유시추용 회전드릴의 선단 표면을 오버 레이 용접시켜 내마모성을 획기적으로 개선시킴으로써 이루어 졌다. 초기 오버레이 용접기술은 발전설비I 제철설비I 시벤트설비, 그리고 제지설비 등 주로 설비 부품들의 표면부 내마모성을 개선시키는 방향으로 주로 연구 개발이 이루어졌으나, 기술개발의 진전으로 탈황설비 둥의 표면부 내식성 향상, 연속주조롤 표면부의 내산화성, 내열피로성, 내마모 성 향상 둥을 위해 점차 산업전반에 널리 이용되고 있으며, 설비의 고도화 및 장수명화가 요구되 면서 본 기술의 중요성 또한 점차 부각되고 있다. 그림 1은 연강의 모재 위에 셀프쉴드플럭스코어드와이어(Self-Shield Flux Cored Wire:SS-FCW, 이하 55-FCW라 기술함)를 사용하여 오버레이 용접올 하는 장면을 도식적으로 나 타낸 것이다. 모재와 전극재인 용접봉(S5-FCW) 사이에서 아크가 발생되고, 아크열에 의해서 용접 봉 및 모재 일부가 용융되면서 모재 표면에 새로운 오버레이 표면층이 형성된다. 통상 오버레이 층의 1층 두께는 2-6mm 내외이며, 단층 혹은 다충 오버레이를 자유롭게 실시한다. 오버레이층의 물성은 아크열에 의한 모재로의 용입정도에 따라 1층부에서는 모재의 영향을 크게 받지만 오버레 이충 수가 증가된 3층부에서 부터는 전적으로 용접봉의 성분에 좌우된다. 사진 1은 연강(55-41)의 모재위에 크롬탄화물이 다량 함유된 고크롬 탄화물형 내마모재가 오버 레이된 내마모 복합강판 (wear plate)의 단면 미세조직 사진으로써 모재부와 오버레이충을 함께 보여주고 있다. 모재와 오버레이 충간의 경계면은 모재 일부가 용융된 후 웅고하면서 형성됨으로 인해서 도금이나 용사층과는 달리 매우 견고하게 결합되어 있다. 따라서 계면부의 탈락이라는 문 제점은 거의 없어 심한 응력을 받는 기계구조물 및 부품에도 본 기술은 널리 적용되고 있다. 그리고 사진 1에서 알 수 있는 바와 같이 모재와는 전혀 상이한 재료를 자유로이 선택하여 표면 유효층 일부만 오버레이시키며I 주조 및 단조가 불가능한 재료까지도 표면부에 오버레이 시킴으로 서 부품 및 설비의 제조에 있어 재료비의 절감과 제품의 수명이 획기적으로 개선될 수 있다. 그리고 최근에는 도금 빛 용사 둥과 같은 표면처리를 할 경우임의 소재 표면에 도금 및 용 사에 용이한 재료를 오버레이용접시킨 후 표면처리를 함으로써 보다 고품질의 표면층을 얻기위한 시도가 이루어지고 있다. 따라서 국내, 외의 오버레이 용접기술의 적용현황 및 대표적인 적용사례, 오버레이 용접기술 및 용접재료의 개발현황 둥을 중심으로 살펴봄으로서 아직 국내에서는 널리 알려지지 않은 본 기 술의 활용을 넓이고자 한다.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.7-8
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• 2020

지속가능한 국가 발전을 위한 물관리 정책은 항상 국정 과제의 중심에 있다. 물관리는 수재해예방, 양질의 안정된 물이용, 충분한 식량생산, 수생태계와 물환경의 보호, 효과적 재정투자 등과 같이 다양한 분야에 계층적이면서도 상호연계성 있는 전문성을 요구한다. 동시에 물관리의 효과와 편익은 경제활동의 기반이 되고 환경보전의 원천이므로 정책의 수요는 정부뿐만 아니라 국민과 더불어 자연으로부터 기인한다. 특히 기후변화의 불확실성 또는 감염병 대발생과 국가적 위기에도 지속가능한 국가 발전을 이행하기 위해서는 시의성 있고 유효한 물관리 정책은 필수이다. 그동안 우리나라 물관리 정책의 세분화 또는 파편화는 물관리 전문성 강화의 효과보다는 비효율성의 결과를 더 크게 생산해 왔었다. 특히 부족한 협력과 조정은 과잉·중복 투자, 비일관적 정책, 비효율적 성과라는 왜곡된 통합물관리 정책 순환이 반복되게 하였다. 최근 정부는 국토교통부의 하천수량(홍수 포함) 및 광역상수도 관리 기능을 환경부로 이관하는 물관리일원화를 추진하여 통합물관리의 발판을 마련하는 계기를 달성하였다. 하지만 비록 정부조직법 개정과 물관리기본법 제정으로 통합물관리 정책의 틀은 마련되었으나, 국토교통부가 하천법 상의 일부 사무를 담당하므로서 하천관리 정책의 복잡성과 다원화는 높아졌다. 따라서 하천의 이용 및 관리에 관한 만족도, 관리주체, 미래상, 물관리일원화 후 정책수요, 기후변화에 관한 인식, 하천관리 참여 의향 등을 조사하는 연구는 시급한 실정이며 향후 하천기본계획, 생태하천복원사업, 소하천정비사업 등과 같은 재정사업의 추진 방향에도 매우 중요한 주제라고 할 수 있다. 본 연구에서는 현재와 미래 하천의 이용 및 관리, 그리고 정책방향에 대하여 일반 시민(4,500명)과 전문가(168명) 대상의 설문조사를 실시하였으며 인식의 공통점과 차이를 비교분석하였다. 설문조사의 내용은 3가지 부문(하천이용, 하천관리, 하천정책)으로 구분하여 각 부문별로 세부문항으로 구성하였다. 일반 시민과 전문가 간의 인식조사 비교 결과, 공통적으로 시민과 전문가는 하천의 바람직한 미래상으로 '깨끗한 수질의 하천'을 가장 높게 선호하였다. 하천관리 우선순위를 묻는 질문에 대한 시민과 전문가의 응답도 대하천, 도랑이나 개울, 중하천, 소하천 순으로 동일하였지만, 1순위와 2순위의 격차는 시민(26.1%)보다 전문가(1.2%)가 낮았다. 또한 시민과 전문가는 하천관리의 주체로 '물전문기관'을 가장 높게 선호하였지만, 전문가는 '물전문기관' 다음으로 중앙부처(20.2%)를 선호하였지만, 시민은 중앙부처(6.8%)를 가장 선호하지 않는 하천관리 주체로 응답하여 두 집단 간의 큰 인식의 차이를 알 수 있었다. 물관리일원화 후 보다 큰 관심을 가져야할 정책으로는 '건강하고 깨끗한 수질'을 시민(38.9%)과 전문가(47.0%)는 1순위로 선택하였으나, 2순위는 시민은 '생태서식공간'(11.6%)을 전문가는 '안정적 수량확보'(20.2%)를 선택하여 두 집단의 인식 차이가 있음을 알 수 있었다.