• Title/Summary/Keyword: DiaA

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Characteristics of Absorption and Heat Transfer for Film Falling along a Vertical Inner Tube (3rd. Report, Refrigerating Capacity in Evaporator and Heating Capacity in Absorber) (수직관(수직관)내를 흘러내리는 액막식흡수기(液膜式吸收器)의 흡수(吸收) 및 열전달(熱傳達) 특성(特性) (제(第)3보(報), 증발기(蒸發器)의 냉동능력(冷凍能力)과 흡수기(吸收器)의 난방능력(暖房能力)))

  • Ohm, K.C.;Kashiwagi, Takao;Seo, J.Y.
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.6 no.3
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    • pp.175-181
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    • 1994
  • This paper deals with the correlation of absorption rate in absorber and evaporation rate in evaporator. The evaporator consists of a copper tube of 10mm dia, and 600mm long and chilled water flowing through the tube is fed by the chilled water circulator. The flowrate of LiBr-water solution in the absorber plays a significant role in determining the magnitude of the heat transfer rate from chilled water to refrigerant There exists a flowrate of solution which has a maximum value of heat transfer. It is interesting to note that the absorption rate of absorber increases with increasing the heat transfer rate of the evaporator. Also, absorption rate increases with evaportation rate, and the ratio(the former/the other) depends on the inlet temperature of LiBr-water solution in the absorber. The heating capacity in the absorber is higher than the refrigerating capacity in the evaporator.

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Connective Tissue Massage (Bindegewebs massage) (결합조직 맛사지)

  • Kim, Jong-Soon;Ryoo, Jae-Kwan
    • Journal of Korean Physical Therapy Science
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    • v.4 no.3
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    • pp.475-489
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    • 1997
  • Connective tissue massage(CTM, Bindegewebs massage) are developed and named by Mrs. Elizabeth Dicke, a German physical therapist. The CTM is used primarily for internal disorder such as myocarditis, coronary insufficiency, high blood pressure, functional stomach and intestinal disorders, inflamma-tion of the gallbladder, and hepatitis, arterial circulatory problems, venous disorders, headache, particularly trauma to the head, and some gynecologic disorder, etc. Which is performed with special stroking technique of the subcutaneous tissue of the trunk, extremities, and face. The mechanism of effectiveness of CTM is based on a viscerocutaneous reflex. The stroking stimulates the nerve end-ings of the autonomic nervous system. The impulses activated by stroking travel to the sympathetic trunk and the spinal cord and brain, which causes a change in reaction susceptibility. The most important for apply CTM is necessary to know the reflex zone (Head's zone, Mackenzie's zone and Dicke's connective tissue zone). Dicke's connective tissue zones are only found by the special dia-gnostic stroking. Because the connective tissue zones no discomfort when unmanipulated, and thus the patient is unaware of them. It is characterized by diagnostic stroking that causes a sharp pain in the tissue. As a general rule, all treatment are preceded by the basic stroke from the level of the coccyx to the first lumbar vertebra and each stroke is done three times. The right side is done first, then the left side.

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Performance Assessment of Three Turfgrass Species, in Three Different Soil Types, and their Responses to Water Deficit in Reinforced Cells, Growing in the Urban Environment

  • Ow, L.F;Ghosh, S.;Chin, S.W.
    • Weed & Turfgrass Science
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    • v.4 no.4
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    • pp.338-347
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    • 2015
  • Reinforcement cells are used to aid grass growth and taken together, this serves to extend greenery beyond the conventional spaces of lawns, tree pits, gardens, and parks, and is advantageous to urban cities since space for greening is often limited. Drought has variable effects on plant life and the resilience of turf to drought resistance also varies with species. Changes in photosynthetic ability were more pronounced for media rather than grass species. The media of sand without organic matter was found to be least suited for drought resistance. Normalized difference vegetation index (NDVI) and digital image analysis (DIA) data were generally in favour of Zoysia species as oppose to A. compressus. In A. compressus, selective traits such as, a more extensive root system and lower specific leaf area (SLA) were not an underlying factor that assisted this grass with enhanced drought resistance. Generally, WUE was found to be strongly related to plant characterises such as overall biomass, photosynthetic features as well as the lushness indexes, and specific leaf area. This study found a strong relationship between WUE and a suite of plant characteristics. These traits should serve as useful selection criteria for species with the ability to resist water stress.

Synthesis of LaMnO3-Diamond Composites and Their Photocatalytic Activity in the Degradation of Weak Acid Red C-3GN

  • Huang, Hao;Lu, Benqian;Liu, Yuanyuan;Wang, Xeuqian;Hu, Jie
    • Nano
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    • v.13 no.10
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    • pp.1850121.1-1850121.11
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    • 2018
  • In this study, a series of $LaMnO_3$-diamond composites with varied $LaMnO_3$ mass contents supported on micro-diamond have been synthesized using a sol-gel method. The as-prepared composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy and the Fourier transform infrared spectra (FTIR). Meanwhile, the photocatalytic performances were also tested by photoluminescence (PL) spectroscopy, ultraviolet-visible diffuse reflection spectra (UV-Vis DRS) and the degradation of weak acid red C-3GN (RC-3GN). Results show that the peak position of $LaMnO_3$ is shifted to low angle after the introduction of diamond, and perovskite particles uniformly distributed on the surface of diamond, forming a network structure, which can increase the active sites and the absorption of dye molecules. When the mass ratio of $LaMnO_3$ and diamond is 1:2 (LMO-Dia-2), the composite shows the most excellent photocatalytic activity. This result offers a sample route to enlarge the range of the application of micro-diamond and provide a new carrier for perovskite photocatalysts.

Semi-rigidity of cap plate and extended end plate connections

  • Nassani, Dia Eddin;Chikho, Abdul Hakim;Akgonen, Aliriza llker
    • Steel and Composite Structures
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    • v.23 no.5
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    • pp.493-499
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    • 2017
  • The behaviour of steel frames is highly influenced by the beam-column connections. Traditionally, Steel frames were usually designed assuming that connections are ideally pinned or fully rigid. A semi-rigid connection, however, creates a balance between the two extreme approaches mentioned above. In this research, two full scales of Extended End Plate Connections (EEPCs) were tested. Mathematical and numerical models were used to analyse the connections, and close correlations were found between these models and the corresponding tested specimens, which confirmed the confidence in the experimental results. The experimental results obtained enrich the available test data about behaviour of EEPC. In addition, the purpose of studying EEPC experimentally is to compare the stiffness and moment-rotation curve of EEPCs with that of Cap Plate Connections (CPCs), which were tested in a previous work. CPCs have not been studied sufficiently in the literature. The results obtained show that the typical CPC reduces the connection stiffness and these results will make a valuable contribution to the available test data in the research area of CPC.

Formulation and Evaluation of Transdermal Patch Containing Sibutramine

  • Subedi, Robhash Kusam;Jang, Jun-Ho;Kim, Jae-Il;Park, Young-Joon;Choi, Hoo-Kyun
    • Journal of Pharmaceutical Investigation
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    • v.40 no.1
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    • pp.33-38
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    • 2010
  • Sibutramine is a serotonin-norepinephrine reuptake inhibitor indicated for the management of obesity in conjunction with a reduced calorie diet. The oral administration of sibutramine is followed by its dose-related side effects. In this study, sibutramine was formulated into drug in adhesive (DIA) patches in an attempt to overcome these problems. The effects of different formulation variables including pressure-sensitive adhesive (PSA), loading amount of drug, thickness of matrix and enhancer on the skin permeation of the drug were evaluated using excised hairless mouse skin. In the acrylic adhesive with carboxyl functional group, low release of sibutramine was observed due to the strong interaction between carboxyl group of adhesive and amine group of sibutramine. The acrylic adhesive without functional group provided good adhesion force and allowed high drug loading. Changing drug load as well as thickness of the matrix was found to alter permeation rate. $Crovol^{(R)}$ PK40 and $Crovol^{(R)}$ A40, were found to be effective enhancers for sibutramine. The optimized patch contained 20% sibutramine, and 5% $Crovol^{(R)}$ A40 as permeation enhancer, in $80\;{\mu}m$ thick Duro-$Tak^{(R)}$ 87-9301 matrix.

Development of a Fermented TMR for Pigs Using Bale-Wrapping System (랩-베일을 이용한 양돈용 TMR 발효사료 제조 시스템 개발)

  • Kim, Hyuck-Joo;Yu, Byeong-Kee;Lee, Sunghyoun;Yu, Ji-Su;Seo, Hyoung-Duk
    • Journal of Animal Environmental Science
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    • v.20 no.3
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    • pp.105-116
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    • 2014
  • In this study, we developed a fermented TMR producing system which could a continuous operation of baling and wrapping the mixed TMR. The baling part has fixed chamber of dia. 900 mm and width 900 mm. And the the turn-table type wrapping part is very compact compared to conventional one in market. The test result were: The absorbed power of the prototype in working was 9.0~15.7 kW. The combined baling and wrapping performance was over 20 bales/hr. The leakage in the process was around 1.9 kg for making a 350 kg TMR bale. The diameter of wrapped TMR bale was 900~950 mm, and its weight was 350 kg in average. Therefore the density was $718kg/m^3$, and it was very high density to the inputted TMR. The pH of the fermented TMR was 5.0~5.6 which was similar to the fermented haylage, also the TMR had no butyric acid's odor.

Synthesis and application of Pt and hybrid Pt-$SiO_2$ nanoparticles and control of particles layer thickness (Pt 나노입자와 Hybrid Pt-$SiO_2$ 나노입자의 합성과 활용 및 입자박막 제어)

  • Choi, Byung-Sang
    • The Journal of the Korea institute of electronic communication sciences
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    • v.4 no.4
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    • pp.301-305
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    • 2009
  • Pt nanoparticles with a narrow size distribution (dia. ~4 nm) were synthesized via an alcohol reduction method and used for the fabrication of hybrid Pt-$SiO_2$ nanoparticles. Also, the self-assembled monolayer of Pt nanoparticles (NPs) was studied as a charge trapping layer for non-volatile memory (NVM) applications. A metal-oxide-semiconductor (MOS) type memory device with Pt NPs exhibits a relatively large memory window. These results indicate that the self-assembled Pt NPs can be utilized for NVM devices. In addition, it was tried to show the control of thin-film thickness of hybrid Pt-$SiO_2$ nanoparticles indicating the possibility of much applications for the MOS type memory devices.

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The Three -Dimensional Stability Analysis of the Diaphragm Wall under the Influence of External Loads (상재하중의 영향을 고려한 Diaphragm Wall의 3차원 안정도 해석)

  • Gu, Ja-Gap;Lee, Sang-Deok;Jeon, Mong-Gak
    • Geotechnical Engineering
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    • v.7 no.3
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    • pp.43-50
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    • 1991
  • To analyze the effects of ground water levels and external loads on the stability of a Dia- phragm wall, the three models of Bell, Piaskowski/kowalewski, and Washbourne were modified and extended to develop a new program SL3D. Comparing to the other two models, Washbourne's model shows the stability in on safes at the beginning of the excavation and increase as the excavation continue . Also the effects of various design factors, such as the density of slurry, ground water levels, the friction angle of soil, external loads and the length of trench, have been analyzed and a nomogram was developed.

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A STUDY ON EXPERIMENTAL CHARACTERISTICS OF ENERGY ABSORPT10N CONTROL IN THIN-WALLED TUBES FOR THE USE OF VEHICULAR- STRUCTURE MEMBERS

  • Kim, S.-K.;Im, K.-H.;Hwang, C.-S.;Yang, I.-Y.
    • International Journal of Automotive Technology
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    • v.3 no.4
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    • pp.137-145
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    • 2002
  • Automobiles should be designed to meet the requirements and standards for the protections of passengers in a car accident. One of safety factors is an absorbing capacity in collision. Many vehicles have been designed based on the criterion of the absorbing capacity. Therefore a controller has been developed in order to control and increase the absorbing capacity of impact energy in automobile collision. The capacity of impact energy will be improved regardless of vehicular-structure members and shapes. An air-pressure horizontal impact tester for crushing has been built up for the evaluation of energy absorbing characteristics in collision. Influence of height, thickness and clearance in the controller have been considered to predict and control the energy absorbing capacity. Aluminum alloy (Al) tubes (30,39,44 m in inner dia. and 0.8, 1.0, 1.2 m in thickness) are tested by axial loading. The energy absorbing capacity of Al tubes have been estimated in cases of with-controller and without-controller. respectively based on height. thickness, clearance of an controller.