• Title/Summary/Keyword: Overrun

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The quality characteristics of frozen soy yogurt prepared with soy protein isolate, industrial proteases and commercial mixed cultures (산업용 단백분해효소로 처리한 분리대두단백과 혼합균주의 종류가 frozen soy yogurt의 품질특성에 미치는 영향)

  • Lee Sook-Young;Park Mi-Jung
    • Korean journal of food and cookery science
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    • v.20 no.6 s.84
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    • pp.658-666
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    • 2004
  • In order to develop and commercialize high quality frozen soy yogurt, the effects of industrial proteases and commercial mixed cultures were examined on the functional properties and the sensory attributes of frozen soy yogurt. For quality improvement, soy protein isolates were primarily hydrolyzed by either Flavourzyme or Neurtrase, industrial Proteases, to reduce the beany flavor and increase the functional properties of the protein. The viable cell count of lactic acid bacteria was higher in the soy protein hydrolysates than whenuntreated. ABT-5 (L. acidophilus, Bifidobacterium lactis, and S. thermophilus) resulted in higher acid tolerance, bile acid tolerance and melt-down percent values than those with YC-X11 (Lactobacillus bulgaricus and Streptococci thermophilus). The overrun of frozen soy yogurt was improved by both Flavourzyme $(193.3\%)$ and Neurtrase $(156.7\%)$ treatments. With regard to thesensory characteristics, Flavourzyme improved the beany flavor, astringency taste, mouth feel and overall quality of frozen soy yogurts fermented with ABT-5. Further studies onproduct formulation will be needed to commercialize the frozen soy yogurt for the market.

Effects of stabilizers on the texture of Frozen yogurt (안정제첨가가 Frozen yogurt 질감에 미치는 영향)

  • Shin, Weon-Sun;Yoon, Sun
    • Korean journal of food and cookery science
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    • v.12 no.1
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    • pp.20-26
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    • 1996
  • The present study was attempted to investigate and to evaluate various hydrocolloids as a stabilizer in improving texture of the frozen yogurt. Four kinds of hydrocolloids used in this study were CMC (carboxymethyll cellulose), PGA(propylene glycol alginate), LMP(low methoxyl pectin), and the combination of LBG(locust bean gum) and GG(guar gum). The viscosity of frozen yogurt mixes did not show any significant differences among four samples at 5$^{\circ}C$. However, as the temperature increased up to 50$^{\circ}C$, theviscosity of frozen yogurt mixes containing CMC, LMP, PGA decreased drastically except frozen yogurt containing the combination of LBG+GG. The overrun of frozen yogurt containing each hydrocolloid gradually increased and reached to about 53, 50, 54, and 35%, respectively, after 40 min of operating ice cream freezer. As the result of sensory evaluation in the texture of frozen yogurt and melt-down quality, the sample containing LMP was described as the most coarce & icy, crumbly, and sand-like characters. On the other hand, PGA sample was evaluated as not being icy, crumbly, but being chewy and soft in texture. However, any significant differences among four samples were not shown in melt-down quality.

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Utilization of Failure Examples in Detail Design for Oil and Petrochemical Plant Project (석유화학 플랜트 프로젝트 상세설계 실패사례활용방안에 대한 연구)

  • Kang, Tae-Young;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.5 no.2
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    • pp.62-67
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    • 2009
  • The capability of design and engineering of global EPC companies has long been equalized through past similar construction experiences. Among various key factors in the success of EPC project, the capability of engineering is considered to be the most important factor since the engineering is preceding activities of EPC contract. The failure of engineering may adversely affect the subsequent procurement & construction activities and in turn may cause cost overrun or schedule delay. Therefore, an EPC company needs to continue to improve the engineering capabilities for the success of project. The engineering capabilities can be further improved if the EPC company should prevent recurrence of similar design faults that were previously committed. This study is intended to present how to make the most of the failure examples from previous projects towards a success of project. Failure is but a stepping stone to success. The EPC company can obtain useful lessons from the analysis of past failure examples.

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The effects of soybean oil and cyclodextrin on the quality characteristics and storage of frozen soy yogurt prepared from proteolytic soy protein isolate (콩기름과 cyclodextrin 첨가량이 효소처리한 분리대두단백으로 제조한 frozen soy yogurt의 품질특성 및 저장성에 미치는 영향)

  • Lee Sook-Young;Park Mi-Jung
    • Korean journal of food and cookery science
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    • v.21 no.1 s.85
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    • pp.18-23
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    • 2005
  • The effects of soybean oil and cyclodextrin were studied on the quality characteristics and storage of frozen soy yogurt prepared from proteolytic soy protein isolate. The viscosity and overrun of frozen soy yogurt were improved by the addition of soybean oil and cyclodextrin. Upon the addition of cyclodextrin, there was a decrease in the peroxide value of yogurt with subsequent increase by the addition of soybean oil during frozen storage. During the process of storage, there was an increase in the acetone and diacetyl contents, but methanol, ethanol and butanol contents decreased. However, the value of hexanal content was not consistent in the obtained results. Sensory characteristics of frozen soy yogurt such as mouth feel, and overall quality were improved by the addition of cyclodextrin and remained the same frozen storage at $-20^{\circ}C$ for 30 days.

A Study on the EVMS for successful application to KHP program (한국형 헬기 시제품 개발을 위한 EVMS 적용방안에 관한 연구)

  • We, Oh-Gie;Chung, Ho-Su
    • Journal of the military operations research society of Korea
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    • v.32 no.1
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    • pp.73-89
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    • 2006
  • In this paper, EVMS procedure for KHP program is presented. Research and development of a defense system as a long lead program has a high probability of cost growth due to the uncertainty and risk. Therefore, meeting schedule, technical performance and preventing excessive cost overrun are the main concerning point to successful research and development program. EVMS(Earned Value Management System) is a program management system using earned value to control cost, schedule and technical performance. In order to control cost and schedule and to meet technical performance requirements of the KHP research and development program, it is necessary for us to adapt EVMS to the program.

Barriers of Last Planner System: A Survey in Vietnam Construction Industry

  • Khanh, Ha Duy;Kim, Soo Yong
    • Journal of Construction Engineering and Project Management
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    • v.3 no.4
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    • pp.5-11
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    • 2013
  • Construction industry is overwhelmed by delay and often has suffered cost and time overrun. In this context, Last Planner System (LPS) has been considered as a very useful tool for the management of the construction process. Many previous studies have reported its effectiveness in construction performance. This study aims to evaluate the level of importance of the Last Planner processes in the Vietnam construction industry (VCI), and analyze the existing barriers when implementing these processes in construction management. These barriers were collected based on previous studies from International Group for Lean Construction (IGLC). A survey was carried out through questionnaire. The respondents are been experienced people in construction project management. There are four processes of LPS that were investigated including master schedule, phase schedule, lookahead plan, and weekly work plan. The results showed that master schedule is the most important item when performing a construction project in the VCI. The highest degree of agreement belongs to 'owner - contractor' pair with 77.1% importance indices; whereas the lowest belongs to 'consultants - contractors' pair with 63.8% importance indices. Eventually, three barrier factors were extracted from factor analysis technique with 62.2% of variance explained.

Physical and Sensory Properties of Ice Cream Containing Fermented Pepper Powder

  • Yeon, Su-Jung;Kim, Ji-Han;Hong, Go-Eun;Park, Woojoon;Kim, Soo-Ki;Seo, Han-Geuk;Lee, Chi-Ho
    • Food Science of Animal Resources
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    • v.37 no.1
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    • pp.38-43
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    • 2017
  • This study was conducted to investigate the physical and sensory properties of ice cream containing fermented pepper powder. Three ice cream formulas were manufactured: 1, control; 2, supplemented with 0.1% fermented pepper powder; and 3, supplemented with 0.2% fermented pepper powder. Formulas 2 and 3 had significantly higher viscosity and lower overrun than formula 1 (p<0.05). Additionally, ice creams supplemented with fermented pepper powder were harder and maintained their forms longer than the controls. 0.2% fermented pepper powder added ice cream had no pungency as much as that of control and overall sensory attribute was not significantly different from control. Therefore, ice cream containing fermented pepper powder maintained physical and sensory properties similar to the controls, and maintenance was better. It means fermented pepper powder ice cream can be utilized as the material of functional food (dessert).

Performance Management through Time-Cost Integration in Construction Project (비용-일정 통합관리를 통한 건축공사 실적관리)

  • Kim Dong-Jin;Lim Hyoung Chul;Choi Jung Suk
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.379-382
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    • 2001
  • In domestic construction industry, time and cost has been managed separately in most cases. Usually projects are managed focused on cost, so time is not yet managed systematically. Project performance in these managemental situation can not be assessed correctly. This would cause project delay, cost overrun, productivity loss. Therefore it is needed to adopt earned value concept, an approach used in the management and control of project costs and schedules. Using this EV concept through time-cost integration, project can be managed properly based on the consistency, predictability, and reliability of the performance data. This paper proposed time and cost integration process, proper PMT method, and practical performance management model through time and cost integration.

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Stakeholders' Perception of the Causes and Effect of Construction Delays on Project Delivery-A Review

  • Gandhak, Prajyot;Sabihuddin, Syed
    • Journal of Construction Engineering and Project Management
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    • v.4 no.4
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    • pp.41-46
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    • 2014
  • Indian Construction industry is large, volatile, and requires tremendous capital outlays. Typically, the work offers low rates of return in relation to the amount of risk involved. A unique element of risk in the industry is the manner in which disputes and claims are woven through the fibre of the construction process. Delay is generally acknowledged as the most common, costly, complex and risky problem encountered in construction projects. Because of the overriding importance of time for both the Owner and the Contractor, it is the source of frequent disputes and claims leading to lawsuits. The growing rate of delays is adversely affecting the timely delivery of construction projects. Presently construction industries are facing a lot of problems, considering that a paper assess construction stakeholder's perception to the causes of delays and its effects on project delivery. And also one case study is considered in this paper to elicit responses from construction stakeholders. The primary aim of this paper is to identify the perceptions of the different parties regarding causes of delays, the allocation of responsibilities and the types of delays, and method of minimizing the construction delays.

A Review of Large-Scale Hydropower Project in Public Sector of Pakistan

  • Umair, Muhammad;Choudhary, Muhammad Abbas;Jahanzaib, Mirza
    • Journal of Construction Engineering and Project Management
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    • v.4 no.4
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    • pp.47-59
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    • 2014
  • Client organization inadequate project planning before awarding the contract and insufficient monitoring and control system among the parties involved create severe problems. Ultimately, large-scale projects go beyond the expected cost and time control limits. This paper discusses the major issues involved with a large-scale Hydropower Project in Pakistan Public Sector environment. The latest approved Baseline Plan of project was reviewed and analyzed using Variance Analysis and Trend Analysis techniques in Primavera project management software to assess the efforts made of the parties involved. It was found that Project is 202% Cost overrun and 25% time delays from original contract award. After analysis of baseline plan and quantification of various variance issues in impacted activities, the questionnaire survey was conducted to identify the impact of causative factors. There were almost 17 most significant causative factors identified among 60 identified factors and responsibilities are assigned accordingly. At the end recommendations are made for strategic decisions as lessons learned during project evaluation.