• Title/Summary/Keyword: imperfect

Search Result 770, Processing Time 0.022 seconds

Constitution of Work Process for the Remodeling Construction Project in Planning Phase (건축물 리모델링 기획단계에서의 사업수행 프로세스 구축)

  • Kwon, Won;Chun, Jae-Youl
    • Korean Journal of Construction Engineering and Management
    • /
    • v.7 no.6
    • /
    • pp.165-174
    • /
    • 2006
  • Recently, the architecture remodeling is rising as new alternative for activating the construction market as the interest toward life cycle of buildings has increased. But the reality is that current remodeling business is suffering various types of difficulties in its performance due to the absence of general management technology and factor technology in systematic performance procedure or evaluation, etc toward remodeling effect, evaluation on performance, imperfect system for reflecting user requirements and remodeling life cycle ; planning, $feasibility ^{\circ}\hat{E}designing^{\circ}\hat{E}construction^{\circ}\hat{E}management$ along with lack of overall understanding on remodeling. Accordingly, this research has attempted to search for an effective management method through overall understanding in project performance by presenting work procedure of remodeling project and analysis items for decision making, etc centered on early planning stage out of three stages called planning, designing and construction.

A Study on Cost Management at the Pre-construction Phase in the Korean Construction Market (공공건설사업 시공 전 단계 사업비관리 개선에 관한 연구)

  • Kim Min-Kee;Shin Sung-Hoon;Hyun Chang-Taek
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • autumn
    • /
    • pp.265-270
    • /
    • 2002
  • Frequent design changes or unnecessary project executions due to illogical practice, lack of feasibility study and, hasty drive have raised problems of budget waste in Korean construction projects. Since the MOCT (Ministry of Construction & Transportation) published Master Plan for budget efficiency for government projects, there have been a lot of policy efforts for budget saving. However, it has been pointed out that cost management at the pre-construction phase, which greatly influences the cost still remains imperfect. The target cost for government clients is not being estimated reasonably, and cost controlling at the pre-construction phase is not yet being carried out properly for keeping the budget. Therefore, improved construction cost management at the pre-construction phase was proposed in this paper. The cost management systems of advanced countries were investigated for it, and the issues were drawn from the cost management systems of these countries. On the basis of the issues, the present conditions and problems of domestic construction cost management at the pre-construction phase were analyzed for suggestion.

  • PDF

A Study on Recoverability of Opportunity Profits Loss upon Time-Delay in Construction Contract (건설공사의 공기지연과 기회이익의 손실보전에 관한 연구)

  • Chun Jae-Youl;Lee Kyung-Kook
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • autumn
    • /
    • pp.359-364
    • /
    • 2003
  • The loss of potential opportunity profit which is consisting in the partial markups of the corporation would taking placed in related with the time-delay deeply, has customarily disregarded in contract adjustment under the principles of denial of cost accounting method, declined conjecture in the point of benefits and protection of the law in scope of compensation and the restricted conditions of constant contract. It is being resulted from that the policies of the general principles of accounting standards which is subjected to ask an objective data and evidence, and the denial system as a debt derived from imperfect legal theory applied by current law. Therefore, it is necessitated to find if any irrationality in the positive system is and further to draw an improved reasonable measures to adopt by review of constant system preparing tile reasonableness with the method of suitable quantification devices provided that any time-delay is induced by the party.

  • PDF

The Investigation of literature of Driental and western medicine about relation of 'Su-Chun'( ), 'Hwa-Chun'( ) and cardiac rapid respiration (수천(水喘) 및 화천(火喘)과 심장성(心臟性) 천식(喘息)에 관(關)한 동서의학적(東西醫學的) 문헌(文獻) 고찰(考察) -(원인(原因).증상(症狀) 중심(中心)으로)-)

  • Kim, Yung-Tae;Lee, Hyung-Gu;Jung, Sung-Gi
    • The Journal of Internal Korean Medicine
    • /
    • v.11 no.1
    • /
    • pp.53-60
    • /
    • 1990
  • The results are as follows through the investigation of literature. 1. The cause of shortness of breath due to fluid retention is abnormal rising of water-evil and it srepregentative symptom are as follows'Cough or dyspnea, shortness of breath-sleeplessness, rapid respiration accused by having rest, edemd on the body and leg' 2. Dyspnea caused by fire-evil is It repregentative symptom are 'getting better or getting worse, reducing by eating rapid respiration accused by eating If having rest the ditalenergy (gui) is made a peace At moving, the vital energy is abrupt or irregalar and acused rapid respiration' 3. From the point of view, the rapid respiration accused by heart usually bring about imperfect left heart Its repregentetive symptom are cyspnea, acute dyspnea at night, bronchial wheezing edema on the leg, and the thing which bring about at moving is mildcase but what bring about at rest is severe case 4. We have known that the symptom of shortness of breath due to fluid retention are similiar to cardiac rapid respiration, and the symptom of dyspnea acused by fire-evil alike 'dyspnea at moving' acused at mild case of cardiac rapid respiration.'

  • PDF

Implementation of Phase-Error Compensation Algorithm in Terrestrial Digital TV Modulator (지상파 디지털 TV 방송용 송신기에서 변조기의 위상오차 보상에 관한 알고리듬 구현)

  • Oh, Inn-Yeal;Yang, Kyung-Seok;Lee, Chul;Mok, Ha-Kyun;Oh, Seong-Hwan
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.24 no.6B
    • /
    • pp.1156-1164
    • /
    • 1999
  • In this paper, we have studied the 8 YSB (8 Vestigial Side Band) method which is decided as the standard of modulators for next generation digital TV System. In developing digital TV System, one of the difficult problems is how digital signal can be transmitted to the receiver without any phase distortion. But, phase error is liable to occur by imperfect design, circumstance variation and device degradation. These characteristics result in distortion of 1,0 signal of modulator and interference in adjacent channels. In particular, the interference in modulator of a high power amplifier result in serious problems in adjacent channels. Here we analyzed problems of phase error which are occurred when 8 levels digital signals are modulated to If signal. And we suggested phase error compensation algorithm and discussed the results for adaptation of the algorithm

  • PDF

A Study on the Expression Characteristics of Interior Design in Wabi-Sabi of Everyday-Life Esthetics - Focused on Contemporary Japanese Interior Design - (와비-사비의 일상미학적 해석을 통한 실내디자인의 표현특성에 관한 연구 - 현대 일본 실내디자인 작품을 중심으로 -)

  • Lee, Kill-Ho;Lee, Jung-Wook
    • Korean Institute of Interior Design Journal
    • /
    • v.20 no.3
    • /
    • pp.110-118
    • /
    • 2011
  • Today aesthetics expression could be a 'Everyday-life Beauty', because today art & design are closely related with a contemporary life. This thesis dealt with a everyday-life and sensitive design which sublimate from everyday-life material to the concept of aesthetics, such a purpose of this thesis establishes a base of everyday-life design through everyday-life aesthetics. This purpose made to pay attention to Japan's aesthetics concept, because Japan has been maintained and developed its own everyday-life aesthetics. Even if Japan doesn't have only everyday-life aesthetics, it is useful that is studies as some kind of a prototype. So this study analyzed about a everyday-life aesthetics and the expression method through the case-study of Japan. According to Yonagi Muneyoshi and Leonard Koren, the Wabi-Sabi has three conceptual characteristics like impermanent, incomplete, and imperfect and six expression characteristics like implication, tranquility, simplicity, coarseness, purity, and association. This study process is as follows. In the first a vocabulary of interior design was derived from three conceptual characteristics and six expression characteristics, and spatial facts was abstracted from it, and then volume, form, and then shape of composition facts of interior space was extracted from it. Finally the expression characteristics of the Wabi-Sabi in interior design was derived from these processes. In conclusion, the expression characteristics of the Wabi-Sabi in interior design is the transitional space through a Shadow, the conversional space through form and material composition, and the copying space through a natural friendship.

Performance Evaluation of Convolution Coding OFDM Systems (컨볼루션 코딩 OFDM 시스템의 성능 분석)

  • Choi, Seung-Kuk
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.17 no.2
    • /
    • pp.294-301
    • /
    • 2013
  • OFDM technique uses multiple sub-carriers for the data transmission. Therefore, bit error rate increases because of inter-carrier interference caused by nonlinear high power amplifier and carrier frequency offset. Wireless OFDM transmission over multi path fading channels is characterized by small transmission gain in multiple sub-carrier frequency interval. Therefore bit error rate increases because of burst errors. Inter-leaver and convolution error control coding are effective for the reduction of this burst error. Pilot symbol is used for the channel estimation in OFDM systems. However, imperfect channel estimates in this systems degrade the performance. The performance of this convolution coding OFDM systems using inter-leaver, gauged by the bit error rate, is analyzed considering the nonlinear high power amplifier, carrier frequency offset and channel estimation error.

Productivity test on some screened strains of Gibberella fujikuroi(Saw.) (Gibberellin 산류 생산균주의 분리와 생산성검토)

  • Lim, S.U.;Lee, C.Y.
    • Applied Biological Chemistry
    • /
    • v.14 no.2
    • /
    • pp.171-175
    • /
    • 1971
  • Gibberella fujikuroi(imperfect stage Fusarium moniforme) a soil fungi is well known as the producer of plant growth regulator Gibberellins. The present work was planned for the isolation of the active strains of Gibberella fujikuroi from the native paddy soils. Twenty two strains were isolated from the infected rice seedlings collected from four local areas. Pyongtaek, Yesan, Tangjin and Sunchon and screened through the activity test for the production of Gibberellins. The strains P-105, Y-14 and T-58 yielded higher activity than the others isolated and the referred strain IAM-8048. The strains Y-5, Y-7, T-54 and S-152, however, were less promotive or rather inhibitory in the growth of rice seedlings. Six different kinds of culture media developed by Cross, Raulin-Thom, Borrow, West, Stodola and Kurosawa respectively were compared with each other for the production of Gibberellins and the best result was obtained with Raulin-Thom's media(glucose 16% and $NH_4NO_3$ 0.24%).

  • PDF

A Study on the Change of ADL in the Elderly Disability Women after the Self Rehabilitation Exercise at Bedside (신체 장애 여성노인들의 침상 재활운동 후 일상생활수행능력 변화 연구)

  • Kim, Soo-Min
    • The Korean Journal of Health Service Management
    • /
    • v.5 no.4
    • /
    • pp.127-136
    • /
    • 2011
  • The improving in physical activity of Disability elder is the most important and effective way of prevent and treatment. Especially, It improves ADL(Activities Daily of Living) by decreasing restrictive function and dependence. This study was researched on change by comparing before and after about ADL of Women elders who were instructed self rehabilitation exercise in bedside and have been take that. The whole subjects are 92 persons. Elders aged 65 to 69 are 32 persons. elders aged 70 to 74 are 22 persons 38 persons are over the age of 75. This study shows that the whole subjects have been improved ADL. especially, "Take a bath" in detail items of ADL comes to the most improvement rate. Next, "Sit to stand on the bed and transfer" comes to the second highest rate. According to findings upon the age group. "Take a bath" is also the highest improvement rate. Elders aged 60 to 65 show "Sit to stand on the bed and transfer" is the second highest rate of improvement" and elders aged 70 to 74 show that "control urine" is the second highest rate of improvement. and elders over the age of 75 shows that "sit to stand on the bed and transfer" is the second highest rate of improvement. This study have some problems on having possibilities of results because hospitalized persons have answered imperfect statement and being compare progressed for short term with rehabilitation exercise. so, There are some causes that is early to be generalized.

Proteomic Analysis of Recombinant Saccharomyces cerevisiae upon Iron Deficiency Induced via Human H-Ferritin Production

  • Seo, Hyang-Yim;Chang, Yu-Jung;Chung, Yun-Jo;Kim, Kyung-Suk
    • Journal of Microbiology and Biotechnology
    • /
    • v.18 no.8
    • /
    • pp.1368-1376
    • /
    • 2008
  • In our previous study, the expression of active H-ferritins in Saccharomyces cerevisiae was found to reduce cell growth and reactive oxygen species (ROS) generation upon exposure to oxidative stress; such expression enhanced that of high-affinity iron transport genes (FET3 and FTR1). The results suggested that the recombinant cells expressing H-ferritins induced cytosolic iron depletion. The present study analyzes metabolic changes under these circumstances via proteomic methods. The YGH2 yeast strain expressing A-ferritin, the YGH2-KG (E62K and H65G) mutant strain, and the YGT control strain were used. Comparative proteomic analysis showed that the synthesis of 34 proteins was at least stimulated in YGH2, whereas the other 37 proteins were repressed. Among these, the 31 major protein spots were analyzed via nano-LC/MS/MS. The increased proteins included major heat-shock proteins and proteins related to endoplasmic reticulum-associated degradation (ERAD). On the other hand, the proteins involved with folate metabolism, purine and methionine biosynthesis, and translation were reduced. In addition, we analyzed the insoluble protein fractions and identified the fragments of Idh1p and Pgk1p, as well as several ribosomal assembly-related proteins. This suggests that intracellular iron depletion induces imperfect translation of proteins. Although the proteins identified above result from changes in iron metabolism (i.e., iron deficiency), definitive evidence for iron-related proteins remains insufficient. Nevertheless, this study is the first to present a molecular model for iron deficiency, and the results may provide valuable information on the regulatory network of iron metabolism.