• Title/Summary/Keyword: Dissolution behavior

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The Effects of Food Service Franchisors' Conflict Resolution Activities on Procedure Quality, Behaviour Quality and Dissolution Intention (외식 프랜차이즈 본부의 갈등해결행동이 절차와 행동의 질 및 해지의도에 미치는 영향)

  • Han, Sang-Ho;Yang, Jae-Jang;Lee, Yong-Ki
    • The Korean Journal of Franchise Management
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    • v.8 no.3
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    • pp.29-37
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    • 2017
  • Purpose - In recent years, research has been conducted on the conflict resolution strategies of the franchise headquarters and the franchisees, but there is a lack of research on the factors of conflict due to the intrinsic structure, such as interdependence or hierarchical relationship, and behavioral analysis to reduce the conflict. In this study, we analyze the relationship between satisfaction and trust formed in the process and result of the business, and the result of action to dissolution intention. Research design, data, methodology - For these purposes, the author developed the proposed model and several hypotheses. In this model, conflict resolution strategies consist of five dimensions such as avoiding, forcing, cooperating, obliging, and compromising strategy. And, this model proposed that onflict resolution strategies are antecedents of procedure quality, behaviour quality and dissolution intention are consequences of conflict resolution strategies. The data were collected from April 1 to April 15, 2013. Because this study examined franchise industries from the franchisee perspective, we contacted franchisee store owner and managers located in Seoul and Gyeonggi Province. Interviewers trained contacted a total of 483 franchisees, and 400 franchisees responded. Out of 400 respondents, 2 respondents were deleted due to missing information. Thus, a total of 398 franchisee were used for this study. he data were analyzed using frequency analysis, confirmatory factor analysis, correlation analysis, and structural equational modeling with SPSS 24.0 and Amos 23.0 statistical program. Results - The findings can be summarized as follows: First, franchisor conflict resolution activities have significant effects on procedure quality. Second, procedure quality has a significant effect on behavior quality. Finally, behavior quality has a significant effect on dissolution intention. Conclusions - In this study, we investigated the relationship between conflict resolution behavior, procedural quality, behavior quality and dissolution intention. As a result, the franchisers should strive to resolve conflicts not only in solving simple problems with franchisees, but also in a longer term perspective. We also found that the procedural aspects of resolving conflicts should not be ignored. If the trust and satisfaction of each other increase during the process of resolving the conflict, it will positively affect the satisfaction and trust in resolving the conflict. This is also because it serves to lower the intention of termination. However, there is a limitation that it is targeted only to the restaurant franchise, and it is necessary to study the conflict resolution behavior depending on the type of conflict.

Studies on the Coprecipitates of Two Ingredients with PVP (이성분계 공침물에 관한 연구)

  • 백우현;김정우;송영준
    • YAKHAK HOEJI
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    • v.25 no.4
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    • pp.187-192
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    • 1981
  • In order to increase the dissolution rate on the mixture of sulfamethoxazole and trimethoprim (SMX-TMP), their coprecipitates with polyvinylpyrrolidone (PVP) were studied. Coprecipitates prepared with various ratios of SMX and TMP were examined such as hygroscopicity, apparent solubility, apparent partition coefficient and the dissolution behavior of SMX-TMP's coprecipitates and their physical mixtures. The hygroscopicity of coprecipitates were less than that of physical mixtures. The apparent solubility and dissolution rate of SMX-TMP's coprecipitates were found to be greatly increased. The dissolution rates of SMX and TMP in the coprecipitates were decreased when the ratio of two ingredients to PVP was smaller, and the dissolution rate of SMX was increased when the ratio of SMX to TMP was larger.

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Dissolution and Reprecipitation Behavior of TiC-TiN-Ni Cermets During Liquid-Phase Sintering

  • Yoon, Choul-Soo;Shinhoo Kang;Kim, Doh-Yeon
    • The Korean Journal of Ceramics
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    • v.3 no.2
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    • pp.124-128
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    • 1997
  • An attempt was made to understand the dissolution and reprecipitation behavior of the constituent phases such as TiC, TiN, and Ti(CN) in TiC-TiN-Ni system. During the liquid-phase sintering the TiC phase was found to dissolve preferentially in Ni binder. The solid-solution phase, Ti(CN), formed around the TiN phase, resulting in a core/rim structure. This result was reproduced when large TiC particles were used with fine TiN particles. The path for the microstructural change in TiC-TiN-Ni system was largely controlled by the difference in the interfacial energy of each phase with the liquid binder phase. The results were discussed with thermodynamic principles.

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Numerical Study on the Dissolution Behavior of $CO_2$ Hydrate for Global Warming Mitigation (지구온난화 저감을 위한 이산화탄소 하이드레이트 용해거동에 대한 수치적 연구)

  • Kim, Nam-Jin;Seo, Hyang-Min;Chun, Won-Gee
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.66-69
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    • 2006
  • The idea of $CO_2$ sequestration in the ocean is proposed to be an effective mitigation strategy to counteract potential global warming due to the greenhouse effect Therefore, in the present study, calculations of the dissolution behavior of $CO_2$ hydrate when liquid carbon dioxide is released at 1,000m and 1,500m in depth are performed. The results show the liquid $CO_2$ injected in the ocean becomes $CO_2$ bubble at between 350m and 500m in depth, and the injection from a moving ship is a more effective method of dissolution than through a fixed pipeline. It so also noted that the ultimate plume generated from $CO_2$ bubbles repeats expansion and shrinking due to the peel ins from a fixed pipeline.

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Numerical Study on the Dissolution Behavior of $CO_2$ Hydrate for Global Warming Mitigation (지구온난화 저감을 위한 이산화탄소 하이드레이트 용해거동에 대한 수치적 연구)

  • Kim, Nam-Jin;Seo, Hyang-Min;Chun, Won-Gee
    • New & Renewable Energy
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    • v.2 no.4 s.8
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    • pp.4-11
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    • 2006
  • The idea of $CO_2$ sequestration in the ocean is proposed to be an effective mitigation strategy to counteract potential global warming due to the greenhouse effect. Therefore, in the present study, calculations of the dissolution behavior of $CO_2$ hydrate when liquid carbon dioxide is released at 1,000m and 1,500m in depth are performed. The results show the liquid $CO_2$ injected in the ocean becomes $CO_2$ bubble at between 350 m in depth, and the injection from a moving ship is a more effective method of dissolution than through a fixed pipeline. It so also noted that the ultimate plume generated from $CO_2$ bubbles repeats expansion and shrinking due to the peeling from a fixed pipeline.

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Comparative Study on the Ocean Disposal Methods of Carbon Dioxide (이산화탄소 해양 분사방법에 대한 비교연구)

  • Kim Nam-Jin;Kim Chong-Bo
    • Journal of Energy Engineering
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    • v.13 no.4
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    • pp.301-310
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    • 2004
  • Carbon dioxide ocean disposal is one of the promising options to reduce carbon dioxide concentration in the atmosphere. So, in the present study, calculations of the solubility, the surface concentration and the dissolution behavior of carbon dioxide when liquid carbon dioxide is released at 1,000m and 1,500m in depth are performed. The results show that liquid carbon dioxide changes to carbon dioxide bubbles around 500m in depth, and the hydrate acts as a resistant layer for the dissolution of liquid carbon dioxide. Also. the injection of liquid carbon dioxide from a moving ship is more effective than that from a fixed pipeline.

Carbide Precipitation Behavior During Normalizing Heat Treatment in Low-alloyed Cr-Mo-V-Ti Steel (Cr-Mo-V-Ti 저합금강에서 노멀라이징 열처리조건에 따른 석출물의 거동)

  • Kim, Hong-Ki;Na, Hye-Sung;Lee, Sang-Hoon;Kang, Chung-Yun
    • Journal of the Korean Society for Heat Treatment
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    • v.30 no.2
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    • pp.43-52
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    • 2017
  • Heat treatment condition for dissolution of the M23C6 carbides in 2.25Cr-1Mo-V-Ti material for thermal power plant tube was investigated using a dilatometer method. 2.25Cr-1Mo-V-Ti material was heat-treated at $900{\sim}1,100^{\circ}C$ for 0, 10, 30 min to find the proper dissolution condition of M23C6 carbides. The phase identification and volume fraction of the carbide were measured by using OM, SEM, EBSD and TEM analysis. Optimal heat treatment condition of M23C6 carbide dissolution was selected by predicting dissolution temperature of carbide using Bs points appeared at dilatometer curve. Experimental results showed that the conditions of carbide dissolution was 900, 1,000, $1,100^{\circ}C$ for 30 min. Eventually, the optimal heat treatment condition for dissolution was 30 min at $1,000^{\circ}C$ considering the minimum coarsening of Austenite grain size.

Chemical Properties and Dissolution Technology of Platinum Group Metals in Solutions (용액(溶液)에서 백금족(白金族) 금속(金屬)의 화학적(化學的) 특성(特性) 및 용해기술(溶解技術))

  • Lee, Man-Seung
    • Resources Recycling
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    • v.19 no.5
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    • pp.3-12
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    • 2010
  • Platinum group metals with high purity are important raw materials for high technology industry. Since there are no domestic ores containing PGMs, it is of importance to develop a separation process by which ultra pure PGMs can be recovered from diverse spent resources. Data on the chemical properties and dissolution behavior of PGMs were obtained from the literature. A method for the thermodynamic analysis of the HCl solution with chlorine gas was introduced. Utilizing the difference in the chemical properties and dissolution behavior of PGMs would lead to an efficient separation process to recover ultra pure PGMs.

In Vitro Dissolution of Felodipine from Extended-Release Pellets (펠로디핀 방출연장형 펠렛의 용출 특성 평가)

  • Park, Jeong-Sook;Nam, Kyung-Wan;Shin, Kwang-Hyun;Park, Jong-Bum;Kim, Min-Soo;Hwang, Sung-Joo
    • Journal of Pharmaceutical Investigation
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    • v.37 no.3
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    • pp.193-196
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    • 2007
  • This study aimed to evaluate and develop $Eudragit^{(R)}$-coated pellets based on the dissolution using the paddle method. As coating materials, two types of $Eudragit^{(R)}$ were applied to obtain either sustained release form or fast released form. The dissolution test was carried out in phosphate buffer solution (pH 6.5) at $37^{\circ}C$, 100 rpm. In order to develop a sustained release preparation containing felodipine, a comparative dissolution study was done using commercial product as a control. The dissolution at 30 min of felodipine from $Eudragit^{(R)}$ RS or RL-coated pellets were 0.96% and 99.65, respectively. The weight ratio of $Eudragit^{(R)}$ RL pellets to RS pellets altered the dissolution rate, but did not optimize the dissolution rate. However, the sustained dissolution of felodipine from pellets was optimized by varying the coating ratios of $Eudragit^{(R)}$ RS. It is suggested that the coating ratio of pellets is the main factor which controls dissolution rate. Taken together, $Eudragit^{(R)}$ RS 30D-coated pellets showed the most comparable dissolution rate pattern to commercial product, $Splendil^{(R)}$. This sustained release pellets for oral delivery system of felodipine was simply manufactured, and drug release behavior was highly reproducible.

A Model for Diffusion and Dissolution Controlled Drug Release from Dispersed Polymeric Matrix (고분자 분산 매트릭스로부터의 약물방출에 관한 확산 및 용출 제어 모델)

  • Byun, Young-Rho;Choi, Young-Kweon;Jeong, Seo-Young;Kim, Young-Ha
    • Journal of Pharmaceutical Investigation
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    • v.20 no.2
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    • pp.79-88
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    • 1990
  • A numerical model for diffusion and dissolution controlled transport from dispersed matrix is presented. The rate controlling process for transport is considered to be diffusion of drug through a concentration gradient coupled with time-dependent surface change and/or disappearance of the dispersed drug in response to the dissolution. The transport behavior of drug was explained in terms of ${\nu}$ parameter: ${\nu}$ value means a ratio of diffusion time constant and dissolution time constant. This general model has wide range of application from where release is controlled by the diffusion rate to where release is governed by the dissolution rate. Based on this model, theoretical drug concentration, particle size distributions in the polymer matrix system and the resulting release rate were also investigated.

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