• Title/Summary/Keyword: Recovery process

Search Result 2,275, Processing Time 0.034 seconds

The Experiences of Gambling Abstinences' Sense Recovery (단도박자의 감각 회복 체험)

  • Kang, Jun Hyeok;Lee, Hyuk Koo
    • Korean Journal of Social Welfare Studies
    • /
    • v.47 no.4
    • /
    • pp.121-150
    • /
    • 2016
  • This study is to examine how a person's sense is changing in the process of gambling addiction and recovery. For this purpose, the ten of gambling abstinences were purposefully selected for intensive depth interviews. The data collected by thess interviews were analysed by Giorgi's(1970; 1985) phenomenological method. Meaningful units were categorized into 18 'emerging themes', and integrated by the total of 6 'essential themes' considering the interrelations of the emerging themes. Major findings of the study are as follows. Firstly, participants of this study lost their general senses in the addiction process by focusing on specific senses such as seeing and hearing. Secondly, participants have begun to regain the lost senses in the process of recovery, even though going through the 'pains of withdrawal'. Thirdly, the participants' experiences of recovery could be summarized as 'a recovery process of the general senses lost by gambling'. Based upon these findings, some suggestions for helping practice were proposed such as 'provision of informations about senses', 'program development of sense stimulation', and 'application of sense recovery training'.

Paclitaxel : Recovery and Purification in Commercialization Step (Paclitaxel : 산업화 단계에서의 회수 및 정제)

  • Kim Jin-Hyun
    • KSBB Journal
    • /
    • v.21 no.1 s.96
    • /
    • pp.1-10
    • /
    • 2006
  • The recovery and purification of a paclitaxel from plant cell cultures is essential to commercial process. This review describes a large-scale recovery and purification method for producing paclitaxel, to guarantee high purity and yield from plant cell cultures. Also, the process of separation and purification is optimized in conjunction with a extraction step, pre-purification, purification, and polishing (drying) as an integrated process to meet final product quality requirements such as purity, residual solvents, product morphologies, impurities, bacterial endotoxin, etc. This information is very useful for production and quality control of pharmaceuticals in commercialization step.

Monitoring of Forest Burnt Area using Multi-temporal Landsat TM and ETM+ Data

  • Lee, Seung-Ho;Kim, Cheol-Min;Cho, Hyun-Kook
    • Korean Journal of Remote Sensing
    • /
    • v.20 no.1
    • /
    • pp.13-21
    • /
    • 2004
  • The usefulness of the multi-temporal satellite image to monitoring the vegetation recovery process after forest fire was tested. Using multi-temporal Landsat TM and ETM+data, NDVI and NBR changes over times were analyzed. Both NDVI and NBR values were rapidly decreased after the fire and gradually increased for all forest type and damage class. However, NBR curve showed much clearer tendency of vegetation recovery than NDVI. Both indices yielded the lowest values in severely damaged red pine forest. The results show the vegetation recovery process after forest fire can detect and monitor using multi-temporal Landsat image. NBR was proved to be useful to examine the recovering and development process of the vegetation after fire. In the not damaged forest, however the NDVI shows more potential capability to discriminate the forest types than NBR..

Improvement of Analytical Method for Propineb Residues in Glycine max (L.) Merrill and Pisum sativum L. using Deproteinization Process (고단백질 함유 대두와 완두 중 Propineb 잔류분석을 위한 제단백 효과)

  • Ham, Hun Ju;Choi, Jeong Yoon;Hur, Jang Hyun
    • Korean Journal of Environmental Agriculture
    • /
    • v.41 no.3
    • /
    • pp.206-216
    • /
    • 2022
  • BACKGROUND: Dithiocarbamate fungicide propineb can be analyzed quantitatively by derivatization reaction followed by HPLC/UVD, which has high reproducibility and stability. However, the presence of high protein in soybeans and peas affects the derivatization process resulting in extremely low recoveries. Therefore, this study was conducted to improve the analytical method for analysis of propineb in soybeans and peas by applying a deproteinization process using chloroform-gel method. METHODS AND RESULTS: The deproteinization process was carried out up to 6 times for soybeans and 5 times for peas using 50 mL chloroform. After 4 times of deproteinization process followed by a derivatization reaction with methyl iodide, the recovery yields of propineb in both pulses were >90%. However, the recovery yield tended to decrease when the deproteinization process was performed more than 5 times. The method limit of quantification (LOQ) was 0.04 mg/L. The recovery conducted in triplicate at 10 times and 50 times of the LOQ ranged from 87.2 to 95.0 % with a coefficient of variation <10%. CONCLUSION(S): This study confirmed that 4 times of deproteinization process using the chloroform-gel method was effective when derivatizing and analyzing dithiocarbamate fungicides in pulses with high protein content. However, depending on the initial protein content present in the pulses, there was a difference in the recovery: the lower the protein content, the higher the recovery rate of propineb. It is expected that the method proposed in this study could be applied to remove high content of protein as analytical interference substance from agricultural samples.

Recovery of Tungsten from WC/Co Hardmetal Sludge by Alkaline Leaching Hydrometallurgy Process (WC/Co 초경합금 가공 슬러지로부터 알칼리침출 정련공정에 의한 W 회수)

  • Lee, Gil-Geun;Kwon, Ji-Eun
    • Journal of Powder Materials
    • /
    • v.23 no.5
    • /
    • pp.372-378
    • /
    • 2016
  • This study focuses on the development of an alkaline leaching hydrometallurgy process for the recovery of tungsten from WC/Co hardmetal sludge, and an examination of the effect of the process parameters on tungsten recovery. The alkaline leaching hydrometallurgy process has four stages, i.e., oxidation of the sludge, leaching of tungsten by NaOH, refinement of the leaching solution, and precipitation of tungsten. The WC/Co hardmetal sludge oxide consists of $WO_3$ and $CoWO_4$. The leaching of tungsten is most affected by the leaching temperature, followed by the NaOH concentration and the leaching time. About 99% of tungsten in the WC/Co hardmetal sludge is leached at temperatures above $90^{\circ}C$ and a NaOH concentration above 15%. For refinement of the leaching solution, pH control of the solution using HCl is more effective than the addition of $Na_2S{\cdot}9H_2O$. The tungsten is precipitated as high-purity $H_2WO_4{\cdot}H_2O$ by pH control using HCl. With decreasing pH of the solution, the tungsten recovery rate increases and then decrease. About 93% of tungsten in the WC/Co hardmetal sludge is recovered by the alkaline leaching hydrometallurgy process.

The Practical Application of Aqueous Two-Phase Processes for the Recovery of Biological Products

  • Rito-Palomares, Marco
    • Journal of Microbiology and Biotechnology
    • /
    • v.12 no.4
    • /
    • pp.535-543
    • /
    • 2002
  • Although the generic implementation of aqueous two-phase systems (ATPS) processes for the recovery of biological products has been exploited for several years, this has not resulted in a wide adoption of the technique. The main reasons involve the poor understanding of the mechanism governing phase formation and the behavior of solute partitioning in ATPS processes, the cost of phase forming polymers, and the necessary extended time to optimize the technique. In this review paper, some of the practical disadvantages attributed to ATPS are addressed. The practical approach exploited to design ATPS processes, the application to achieve process integration, the extended use for the recovery of high-value products, and the recent development of new low-cost ATPS, are discussed. It is proposed that the trend of the practical application of ATPS processes for the recovery of biological products will involve the purification of new high-value bioparticulate products with medical applications. Such a trend will give new impetus to the technique, and will draw attention from industries needing to develop new, and improve existing, commercial processes.

Photoinhibition and Recovery of Anacystis nidulans Adapted in Blue-Green Light

  • Young-Nam Hong
    • Journal of Plant Biology
    • /
    • v.38 no.1
    • /
    • pp.1-10
    • /
    • 1995
  • Photoinhibition and its recovery of spectrally adapted Anacystis nidulans were studied. Phycocyanin and Chl content and phycocyanin/Chl ratio were increased in cells grown under blue-green light compared with those grown in white light. Photosynthetic activities of white light and blue-green light grown cells were reduced by 50% after 15 min and 10 min of photoinhibitory light treatment (1.2 mmol·m-2s-1), respectively, largely due to the decline of PSII activities. However, their activities were recovered fully after 30 min incubation under weak light. Treatment of rifampicin and chloramphenicol magnified the photoinhibitory effects and suppressed the recovery with disappearance of susceptibility to photoinhibition and delayed the recovery process, indicating no significant differences in phosphorylation, dephosphorylation and protease activity between two cells. Therefore, it is suggested that the increased sensitivity of blue-green adapted cells might be attributed to the decline of protein synthesis, and phosphorylation-dephosphorylation of protein and protease activity might be involved in the recovery process.

  • PDF

The Experience of the Postpartum Depression : A Grounded Theory Approach (산후 우울 경험에 관한 연구 -근거 이론적 접근-)

  • 배정이
    • Journal of Korean Academy of Nursing
    • /
    • v.26 no.1
    • /
    • pp.107-126
    • /
    • 1996
  • The Purpose of this study was to build a substantive theory about the experience of postpartum depression. The qualitative research method used was rounded theory. The interviewees were eight others who had experienced postpartum depression. The data were collected through in-depth interviews with audiotape recording done by the investigator over a period of twelve months. he data were analyzed simultaneously by a constant comparative method in which new data were continuously coded into categories and properties according to Strauss and Corbin's methodology. Analysis the grounded data resulted in 28 concepts being identified. Eight categories emerged from the analysis. The categories were regret, loss of freedom, isolation of oneself, heartache, loss, emotional upset, avoidance, recovery. These substantive categories are consistent with precious research results. Causal conditions included : regret, loss of freedom. Phenomena : heartache, loss, emotional upset. Context : isolation oneself. Intervention condition : avoidance. Action/interaction strategies : desire for recovery. Consequences : recovery. These categories were synthesized into the core concept-The process of filling the empty loss of self. The process of the experienced postpartum depression was ① change after delivery, ② searching for a reason for depression, ③ effort to recover from postpartum depression, ④ recovery from postpartum depression and return to previous life. The process of recovery from postpartum depression was proceeded by ① support from others, especially husband, ② resolution of stressful life events, ③ reconstructing of life goals and resolution strategies, ④ acceptance of depression and seeking psychiatric treatment. Seven hypotheses were derived from the analysis. ① Mothers who experienced stressful life event and economic problem are more depressive. ② Mothers who have conflict with parents are more depressive. ③ The more somatic symptoms, the more depression. ④ Social support facilitates recovery from postpartum depression. ⑤ Mothers who have lower self-esteem are more depressive. ⑥ Mother's role overload disturbs recovery from postpartum depression. ⑦ Ideal maternal identity facilitates recovery from postpartum depression. Through this substantive theory, nurses can understand the importance of postpartum depression management.

  • PDF

The moderating effect of perceived authenticity in service recovery process (서비스 회복과정에서의 공정성과 진정성의 역할 : 진정성의 조절효과)

  • Suh, Mun-Shik;Min, You- Jin;Rho, Tae-Seok
    • Management & Information Systems Review
    • /
    • v.33 no.1
    • /
    • pp.17-43
    • /
    • 2014
  • research tries to present the role of perceived justice and authenticity in service recovery process. Prior research on the service recovery have focused on relationship among perceived justice, recovery satisfaction and positive customer behavior. Especially perceived justice including distributive, procedural, and interactional justice has addressed as most important antecedents of recovery satisfaction. Although the pivotal role of perceived justice for successful service recovery has agreed by many researchers, relatively little attention has been paid to emotional aspect of customer. During the service recovery process, even if customer perceived recovery effort from service provider as justice one, they might feel displeasure or dissatisfaction. It means prior researches have underestimated the importance of emotional aspect while they focus on cognitive aspects. The one research focused on emotional aspects examined effect of authenticity in service context with other related factors. However, solely examined effect of authenticity is not enough to present proper implication effect between justice and authenticity so that it can be understood more clearly. In this study, we examined customer reactions to service failure and recovery process in restaurant service settings. Specifically, we focused on the moderating effect of authenticity on the paths between perceived justice and outcome variables such as forgiveness and recovery satisfaction.

  • PDF

A Study on the Effects of Customers' Roles in the Service Recovery Process (서비스 실패와 회복과정에서 고객의 역할에 관한 연구)

  • Lee, Choong-Ryul;Ahn, Jinwoo
    • Management & Information Systems Review
    • /
    • v.33 no.3
    • /
    • pp.105-128
    • /
    • 2014
  • This study attempted to examine the role of customers in service recovery process. There have been an argument regarding whether the role of customer in service failure situation 'buffer' or 'deteriorate'. Thus, the role of customer such as relationship quality and customer participation was discussed in this research. According to the result of study, (1) customers' perceived recovery have positive effect on positive emotion significantly. (2) customers' perceived distributional justice and interactional justice positively affected encounter satisfaction in the of recovery justice variable. However, whereas procedure justice has no effect on encounter satisfaction directly, there was indirect effect through customers' positive emotion. (3) As a result of the analysis for the effect of perception of recovery justice on recovery satisfaction, the effect of interactional justice was significant only. Distributional and procedural justice have indirect effect on recovery satisfaction through positive emotion or encounter satisfaction. (4) Customers' positive emotion positively affected encounter satisfaction and recovery satisfaction. (5) Relationship quality negatively moderated the relationship between procedural justice and positive emotion while customer participation positively moderated two paths that distributional justice to encounter satisfaction and interactional justice to recovery satisfaction.

  • PDF