• 한국전자통신학회논문지
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• 제8권1호
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• pp.135-142
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• 2013

침구점포 경영성과 요인을 발굴하여 향후 침구점포 예비창업자와 침구회사의 신규점포상담, 개설시 통계적으로 유용한 자료로 사용함으로서 기존보다 정확하게 경영성과를 예측하는 도구와 기준을 제시하고자 한다. 첫째, 경영성과에 가장 큰 영향을 주는 요인으로는 입지 및 상권으로 분석되었다. 둘째, 침구점포의 경영성과 요인의 중요도는 입지, 소비자, 경쟁 순으로 나타났다. 셋째, 입지요인에서는 '침구점포 주변은 유동인구 다(多), 소비자요인에서는 거주 인구수 다(多), 경재요인에서는 상품 품질 우수가 가장 중요한 변수로 나타났다.

• 융합경영연구
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• 제2권3호
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• pp.20-25
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• 2014

Comfortable sleeping itself is thought to be very much important to have great influence upon remaining lives. Bed-clothes can be an essential factor of comfortable bedding. Korea that has four seasons requires different blanket each season. The Koreans make change of use of the quilt at least 2 to 3 times a year. The quilt may vary depending upon use of either Ondol or bed. Brand bedding governs quilt market. Brand bedding shops have good cognition of customers to be located at the place easy to find out and to have various kinds of products and excellent designs and to take the lead in all of the areas. Non-brand bedding products are difficult to compete with brand products at the bedding market. This study investigated cases of not only management of non brand bedding but also competition between brand bedding and non brand bedding. First, How does non brand bedding elevate competitiveness to win at competition with brand bedding? Second, How dose non brand quilt's approach to consumers and sales strategies?

• 한국의류산업학회지
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• 제14권2호
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• pp.242-250
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• 2012

This study investigates the benefits consumers seek in buying and using bedding, sub-dimensions of lifestyle, and the relationship between those of the benefits and the dimensions of lifestyle. This study conducted a survey to verify benefits consumers seek in buying bedding. A questionnaire was developed to collect data to measure lifestyle, benefits sought for the bedding, and demographic variables. Research was conducted on married women aged between 20 and 59. Total 294 responses were analyzed using factor analysis, correlation analysis, t-test, and one-way ANOVA with SPSS 18.0. A factor analysis identified three dimensions of benefits sought for the bedding: utilitarian benefits, social benefit, and aesthetic benefit. Lifestyle consists of five dimensions: health seeking, social symbol seeking, leisure/country-living seeking, aesthetics seeking, and economy seeking. All dimensions underlying benefits consumers seek in buying bedding and all dimensions of lifestyle were correlated. As consumers get older, they tend to seek more utilitarian and social/psychological benefits of bedding.

• Asian Journal of Atmospheric Environment
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• 제4권1호
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• pp.33-41
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• 2010

Because ammonia from livestock production may substantially contribute to environmental pollution, emissions from all possible sources (housing systems, manure storage, manure application, outside grazing) should be reduced. The purpose of this study was to investigate the effect of different bedding materials on ammonia emissions in a cow house. By applying a combination of four treatment types: treatment $1-T_1$ (sawdust (50%)+sawdust pellets (50%)), treatment $2-T_2$ (sawdust (50%)+corn stalk pellets (50%)), treatment $3-T_3$ (sawdust (100%)), and treatment $4-T_4$ (sawdust (50%)+palm kernel meal pellets(50%)) as bedding materials in a cow house, the effects of such treatments on ammonia flux were assessed in approximately one month. The magnitude of ammonia emissions (mg $m^{-2}\;min^{-1}$) varied in the following order: $T_1$(2.226), $T_4$(2.052), $T_2$(1.845), and $T_3$(1.712). The patterns of pH had a decreasing trend for all bedding treatments during the experiment, and there was no significant relationship with ammonia flux. The results reveal that the most important factor influencing ammonia emissions is the physical structure of the bedding types.

• Geomechanics and Engineering
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• 제14권1호
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• pp.9-17
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• 2018

Brazilian splitting tests, uniaxial compression tests and triaxial compression tests are carried out on the coal samples cored from Shanxi group $II_1$ coal seam of Jiaozuo coal mine, Henan province, China, to obtain their property parameters. Considering the bedding has notable effect on the property parameter of coal, the samples with different bedding angles are prepared. The effects of bedding on the anisotropic characteristics of the coal seam are investigated. A geological geomechanical model is built based on the geology characteristics of the Jiaozuo coal mine target reservoir to study the effects of bedding on the fracture propagations during hydraulic fracturing. The effects of injection pressure, well completion method, in-situ stress difference coefficient, and fracturing fluid displacement on the fracture propagations are investigated. Results show bedding has notable effects on the property parameters of coal, which is the key factor affecting the anisotropy of coal. The hydraulic cracks trends to bifurcate and swerve at the bedding due to its low strength. Induced fractures are produced easily at the locations around the bedding. The bedding is beneficial to form a complicated fracture network. Experimental and numerical simulations can help to understand the effects of bedding on hydraulic fracturing in coalbed methane reservoirs.

• Asian-Australasian Journal of Animal Sciences
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• 제33권11호
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• pp.1858-1865
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• 2020

Objective: The microbiota of dairy cow milk varies with the season, and this accounts in part for the seasonal variation in mastitis-causing bacteria and milk spoilage. The microbiota of the cowshed may be the most important factor because the teats of a dairy cow contact bedding material when the cow is resting. The objectives of the present study were to determine whether the microbiota of the milk and the cowshed vary between seasons, and to elucidate the relationship between the microbiota. Methods: We used 16S rRNA gene amplicon sequencing to investigate the microbiota of milk, feces, bedding, and airborne dust collected at a dairy farm during summer and winter. Results: The seasonal differences in the milk yield and milk composition were marginal. The fecal microbiota was stable across the two seasons. Many bacterial taxa of the bedding and airborne dust microbiota exhibited distinctive seasonal variation. In the milk microbiota, the abundances of Staphylococcaceae, Bacillaceae, Streptococcaceae, Microbacteriaceae, and Micrococcaceae were affected by the seasons; however, only Micrococcaceae had the same seasonal variation pattern as the bedding and airborne dust microbiota. Nevertheless, canonical analysis of principle coordinates revealed a distinctive group comprising the milk, bedding, and airborne dust microbiota. Conclusion: Although the milk microbiota is related to the bedding and airborne dust microbiota, the relationship may not account for the seasonal variation in the milk microbiota. Some major bacterial families stably found in the bedding and airborne dust microbiota, e.g., Staphylococcaceae, Moraxellaceae, Ruminococcaceae, and Bacteroidaceae, may have greater influences than those that varied between seasons.

• 한국지반신소재학회논문집
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• 제6권2호
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• pp.9-15
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• 2007

콘크리트 표면 차수벽형 석괴댐(CRFD)에서의 표층부기초지반은 콘크리트 차수벽을 균등하게 지지할 수 있는 지지력과 사면안정을 위한 소요강도를 확보하여야 하며, 콘크리트 차수벽의 누수시 세립토의 유실을 억제할 수 있는 차수성을 유지하여야 한다. 본 연구에서는 사면부 표층기초지반에 대하여 시험시공을 실시하여 다짐회수에 대한 제체의 변위량과 현장다짐밀도의 변화, 살수량에 따른 함수비 변화 등을 측정하여 효율적인 다짐관리기준을 마련하고자 하였다. 일련의 현장다짐시험결과 CFRD에서의 표층부기초지반은 층별 포설두께 및 다짐회수에 따라 영향 받고 있음을 확인할 수 있었다.

• 지질공학
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• 제19권4호
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• pp.493-499
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• 2009

우리나라는 암석자원이 풍부하기 때문에 콘크리트표면 차수벽형 석괴댐(CFRD)의 시공이 증가하고 있는 실정이다. 콘크리트표면 차수벽형 석괴댐에서의 표층부 기초지반인 Bedding Zone 구간은 콘크리트 차수벽을 균등하게 지지할 수 있는 지지력과 콘크리트 차수벽의 누수시 세립토의 유실을 억제할 수 있는 차수성을 유지하여야 한다. 따라서 Bedding Zone 구간의 차수성 확보 여부가 댐의 안정성을 좌우하는 주요 요인이 될 수 있다. 본 연구에서는 기존의 시방서에 제시된 Zone-1 구간의 설계입도분포를 만족하는 시험재료를 선정한 후, 차수성을 평가하기 위하여 실내시험을 실시하였다. 시험 분석 결과 투수계수, 건조단위중량 및 흙의 입도분포에 따른 차수효과의 상관관계를 제시하였다. 특히, 투수계수와 건조단위중량의 상관관계, No. 4체 중량통과백분율과 투수계수 관계가 제시되었고, 또한 시간경과에 따른 투수계수의 변화도 제시되었다.

• 한국지반공학회논문집
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• 제18권5호
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• pp.133-141
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• 2002

암반파괴의 가장 큰 영향을 미치는 인장강도는 등방의 암석과 횡등방의 암석의 경우는 분명히 다를 것이다. 본 논문에서는 일축압축강도시험에서 횡등방 암석의 탄성정수를 구하고, 간접인장강도시험을 통하여 횡등방 암석의 인장강도와 인장파괴 거동을 분석하였다. 일축압축시험에서 구한 이방성 탄성정수와 간접인장강도시험에서 얻어진 변형률로 시료중앙의 응력집중계수를 구하여, 등방으로 가정하여 구한 인장강도 값과 이방성일때의 인장강도 값을 비교 분석하였다. 실험 결과 횡등방성 암석의 응력집중계수는 층리면의 각도에 따라서 등방재료의 응력집중계수와는 크거나 작은 값을 나타내었다. 횡등방 암석의 인장강도 산정시 등방의 응력집중계수를 사용하는 것은 층리면이 이루는 각도에 따라 인장강도의 과대 혹은 과소 평가됨을 알 수 있었다.

• 한국동물위생학회지
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• 제29권1호
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• pp.71-77
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• 2006

The type of bedding material has been reported affect the environment and animal well-being. Therefore, it has an impact on the health. So, bedding material is the most Important factor in mouse environments. If it is not properly treated, experimental results are unreliable. In this study, various types of bedding material were evaluated in terms of physical characteristics and preference. It was found that bedding material consisting of large fibrous particles and wide inter-particular gap were preferred. The characteristics of bedding material were further investigated by scanning the size and shape of particles. The results show that physical characteristics such as shape, ammonia absorption, particle size effect on experimental data.