• Title/Summary/Keyword: DPD

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Socio-ecological and Capital Evaluation on the Development Plan of Development-promoted Districts in Kyungpook Province, South Korea (개발촉진지구의 발전 계획에 대한 사회.환경.자본 관점에서의 평가)

  • Lee, Chul-Woo;Park, Kyu-Taeg
    • Journal of the Korean association of regional geographers
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    • v.9 no.1
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    • pp.77-85
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    • 2003
  • The purpose of this study is to critically evaluate the DPD development plan of Kyungpook province, which was established in 1996 and slightly revised in 1997 in terms of a theoretical framework, fair distribution and ecological sustainability, and the feasibility of capital supply of the proposed plan. The early part of the proposed plan introduces various theories and approaches developed in regional (or local) development planning as a general after the 1970s. However, the theories and approaches mentioned are not used as a guideline to establish the DPD development plan of Kyungpook province as a historically developed particular place. Most of the plans were tourism-oriented and did not seriously take the local characteristics into account. All the DPDs of Kyungpook province are located in the upper parts of the Nakdong River basin. So those regions are ecologically vulnerable. But a lot of problems remain concerning the environmental impacts of the proposed development plan. In terms of fair distribution and ecological sustainability, it seems that the DPD development plan was routinely made by a handful of professors and administrators, based on a standard format of regional (or local) development as a genera]. Finally, capital is the key factor for successfully implementing the DPD development plan. It came from the national and local government and private investors. The government have generally financed the construction of infrastructures, not profit-oriented projects such as tourism and resort businesses. However, the feasibility of private capital was not carefully examined in the plan.

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Genotoxicity Assay Using Chromosomally-Integrated Bacterial recA::Lux

  • Min, Ji-Ho;Gu, Man-Bock
    • Journal of Microbiology and Biotechnology
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    • v.13 no.1
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    • pp.99-103
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    • 2003
  • An Escherichia coli strain containing the recA promoter that fused to the luxCDABE operon originating from Photorhabdus luminescens was shown to respond sensitively to genotoxic stresses. Two different recombinant bacteria, one (DPDI 657) harboring a plasmid with the recA promoter that fused to the luxCDABE operon, and the other (DPD1710) containing a chromosomally-integrated recA promoter that fused with luxCDABE, were compared and it was found that the sensitivity of 'the two strains was significantly different in terms of their bioluminescent level, response time, and the minimum detectable concentration of a chemical causing DNA damaging stress. DPDI 710, with a chromosomally-integrated single copy, generally led to lower basal luminescence levels, faster responses, increased response ratios, and an enhanced sensitivity to mutagens, when compared to DPD 1657 with a multi-copy plasmid.

Derived Topics and Their Development from ICT-Based DPD Concept

  • Oh, Yong-Sun;Mishima, Nobuo
    • Proceedings of the Korea Contents Association Conference
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    • 2016.05a
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    • pp.261-262
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    • 2016
  • In this article, we present some derived subjects from the concept of ICT-based DPD concept for the safety of folk villages in both Korea and Japan. First, our deduced topic would rather be a monitoring system design of structures in folk villages. We, therefore, offer an integrated model of maintenance and management monitoring scheme. As another research subject, we submit safety sign or sign system installed in traditional towns and their standardization. We have draw up a plan to make signs upgrade applied to folk villages in Korea and Japan. According to our investigations, we should suggest and focus on flood in the area of traditional town in Korea. We present a water-level expectation model using deep learning simulation. We have applied this method to the area of 'Andong Hahoe' village which had been registered on World Cultural Heritage of UNESCO. The final goal of our research is to propose and realize an integrated disaster prevention and/or safety system based on big data concepts for both Korea and Japan.

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A VLSI Design for Digital Pre-distortion with Pipelined CORDIC Processors

  • Park, Jong Kang;Moon, Jun Young;Kim, Kyunghoon;Yang, Youngoo;Kim, Jong Tae
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.14 no.6
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    • pp.718-727
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    • 2014
  • In a wireless communications system, a predistorter is often used to compensate for the nonlinear distortions that result from operating a power amplifier near the saturation region, thereby improving system performance and increasing the spectral efficiency for the communication channels. This paper presents a new VLSI design for the polynomial digital predistorter (DPD). The proposed DPD uses a Coordinate Rotation Digital Computing (CORDIC) processor and a PD process with a fully-pipelined architecture. Due to its simple and regular structure, it can be a competitive design when compared to existing polynomial-type and approximated DPDs. Implementing a fifth-order distorter with the proposed design requires only 43,000 logic gates in a $0.35{\mu}m$ CMOS standard cell library.

Self-assembly of Helical structure by defected nanosheet

  • Yoon, Sang-hee;Sim, Eunji
    • Proceeding of EDISON Challenge
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    • 2016.03a
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    • pp.75-79
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    • 2016
  • A helical nanosturctrue can be obtained by self-assembly method. Utilizing DPD simulation coarse-grained model, we patterned 2D layer nanosheets with repeated diagonal defects and grafts, and programed to self-roll into hollow helix structure. The defected pattern side caused anisotropy, and formed helix or helix-like structure. This opens the possibility to control the helix pitch or cavity radius. In this work, we designed several patterns about diagonal defect with a variety of defect side densities and defect widths and then simulation was carried out. Thus, our results have that parameters are affecting self-assembly of nanosheets and their conformation.

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Thymidylate Synthase and Dihydropyrimidine Dehydrogenase Levels Are Associated with Response to 5-Fluorouracil in Caenorhabditis elegans

  • Kim, Seongseop;Park, Dae-Hun;Shim, Jaegal
    • Molecules and Cells
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    • v.26 no.4
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    • pp.344-349
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    • 2008
  • 5-Fluorouracil (5-FU), a pyrimidine antagonist, has a long history in cancer treatment. The targeted pyrimidine biosynthesis pathway includes dihydropyrimidine dehydrogenase (DPD), which converts 5-FU to an inactive metabolite, and thymidylate synthase (TS), which is a major target of 5-FU. Using Caenorhabditis elegans as a model system to study the functional and resistance mechanisms of anti-cancer drugs, we examined these two genes in order to determine the extent of molecular conservation between C. elegans and humans. Overexpression of the worm DPD and TS homologs (DPYD-1 and Y110A7A.4, respectively) suppressed germ cell death following 5-FU exposure. In addition, DPYD-1 depletion by RNAi resulted in 5-FU sensitivity, while treatment with Y110A7A.4 RNAi and 5-FU resulted in similar patterns of embryonic death. Thus, the pathway of 5-FU function appears to be highly conserved between C. elegans and humans at the molecular level.

Direct position tracking method for non-circular signals with distributed passive arrays via first-order approximation

  • Jinke Cao;Xiaofei Zhang;Honghao Hao
    • ETRI Journal
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    • v.46 no.3
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    • pp.421-431
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    • 2024
  • In this study, a direct position tracking method for non-circular (NC) signals using distributed passive arrays is proposed. First, we calculate the initial positions of sources using a direct position determination (DPD) approach; next, we transform the tracking into a compensation problem. The offsets of the adjacent time positions are calculated using a first-order Taylor expansion. The fusion calculation of the noise subspace is performed according to the NC characteristics. Because the proposed method uses the signal information from the previous iteration, it can realize automatic data associations. Compared with traditional DPD and two-step localization methods, our novel process has lower computational complexity and provides higher accuracy. Moreover, its performance is better than that of the traditional tracking methods. Numerous simulation results support the superiority of our proposed method.

Comparison of Nutrient Intakes, Bone Metabolism and Risk Factors of Chronic Diseases between Postmenopausal Lacto-Ovo-Vegetarian and Omnivores in Kyunggi-Do (일부 폐경기여성의 채식군과 일반식군의 영양섭취상태, 골대사 및 만성 퇴행성 질환의 위험인자에 관한 비교연구)

  • 최선혜;승정자;김미현;이숙연;송숙자
    • Korean Journal of Community Nutrition
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    • v.4 no.3
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    • pp.412-420
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    • 1999
  • The amount and type of dietary protein that effects affect bone mineral loss after menopause and different dietary patterns may influence anthropometric measurements, biochemical values, and bone metabolism. Objective : Our objective was to investigate bone metabolism and chronic disease factors in two different dietary patterns. Design: The sample consisted of 40 lacto-ove-vegetarians(LOV) and 49 omnivores aged from 47 to 85 years in good condition without any medical problems. Results : The average energy intake of LOV was 1414.0kcal and omnivores, 1403.2kcal. The difference between means was not statistically significant. The differences of means of body weight and BMI between the two groups were not significant but the systolic blood pressure of LOV group was significantly lower than omniovores(p<0.05). The values of serum cholesterol(p<0.05) and glucose(p<0.05) of LOV were signifcantly lower than that of omnivores. The serum albumin level(p<0.01) of LOV was lower than it'scounterpart but in a normal range. The intake of crude fiber(p<0.05) of LOV group was significantly higher. The urinary pH of LOV was 7.4 and that of omnivores was 6.3(p<0.001). Plant calcium(p>0.05) and plant iron(p<0.001) had positive correlations with the uninary pH but animal protein(p>0.05) and animal iron(p>0.05) had negative correlations with the urinary pH. The level of urinary biochemical marker of bone resorption, deoxypyridinoline(DPD) of LOV was significantly lower than the other group(p>0.05). The T-scores of bone mineral density for the two sites in the two groups were not significantly different. Conclusions : The DPD level and urinary pH value of LOV were more desirable for the bone metabolism that the omnivores. The diet of LOV had lower risk factors of chronic diseases than the other group.

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Visualization of the Gastric Calcification due to Cancer on Tc-99m DPD and Abdominal CT Images (Tc-99m DPD 골스캔과 복부 CT 영상에서 보이는 위암의 석회화)

  • Jeong, Young-Jin;Kang, Do-Young
    • The Korean Journal of Nuclear Medicine
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    • v.38 no.5
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    • pp.344-346
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    • 2004
  • A 69-year-old woman was presented with progressed dysphagia, gastric soreness and weight loss during 2 months. She was performed abdomen x-ray, EGDS and abdomen CT. Abdomen x-ray demonstrated punctuate calcification on LUQ. EGDS showed an ulceroinfiltrative mass with bleeding on cardia to antrum of stomach. And CT showed diffuse gastric wall thickness with multiple calcifications. Biopsy of the stomach and esophagus during EGDS examination revealed an adenocarcinoma, with signet ring cell type, infiltrating the wall of the stomach and the distal esophagus. Then acne scan was performed a few days later. It revealed intense uptake in LUQ, corresponding to the calcium containing neoplasm seen on the abdomen x-ray, EGDS and abdomen CT. And there was no evidence of any metastatic lesion and thyroid uptake on the bone scan. There are many reports about accumulation of the tracer in extraosseous lesion, but only a few literatures were reported about gastric calcification in stomach cancer. More over, no reports showed CT images. We are performed many diagnostic examinations and found well correlation between them. The reason of gastric calcification is considered with calcium deposition within extracellular space due to hemorrhage or necrosis. Other possibility offered to explain gastric calcification have been increased blood flow and/or increased neovascularity with capillary leaks of tracer, and specific enzymatic (phosphatases) receptor binding of tracer. So, it was happened ion exchange between intracellular calcium and phosphate groups of tracer.

Vegetable and fruit intake and its relevance with serum osteocalcin and urinary deoxypyridinoline in Korean adults

  • Kang, Myung-Hwa;Kim, Myung-Hee;Bae, Yun-Jung;Choi, Mi-Kyeong
    • Nutrition Research and Practice
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    • v.4 no.5
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    • pp.421-427
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    • 2010
  • The purpose of this study was to evaluate the daily vegetable and fruit intake status of Korean adults and to examine the relationship of vegetable and fruit intake with bone metabolism. The vegetable and fruit intake of 542 healthy male and female adults was analyzed. Then, by selecting 51 targets from the subjects, the relation of vegetable and fruit intake with serum calcium, osteocalcin and deoxypyridinoline (DPD) excretion in urine was examined. The total vegetable intake per day was 397.7 g and 333.5 g by men and women respectively for the age group of 20-29, 366.9 g and 309.2 g respectively for the age group of 30-49, 378.4 g and 325.9 g respectively for the age group of 50-64. Of vegetable varieties, leafy and stem vegetables displayed the highest intake. The order of major intake items of vegetables and fruits was found to be Chinese cabbage kimchi, onion, radish, cucumber, and welsh onion for the age group of 20-29, watermelon, Chinese cabbage kimchi, peach, potato, and onion for the age group of 30-49 and watermelon, Chinese cabbage kimchi, tomato, potato, and peach for the age group of 50-64. Of 51 targets, ${\beta}$-carotene intake displayed a significantly negative correlation with serum osteocalcin. While caloric intake as well as protein, carbohydrate, calcium, phosphorous, zinc and total food intake displayed a significantly negative correlation with DPD excretion in urine, tuber vegetable intake displayed a significantly positive correlation with DPD excretion in urine. In the future, a study will be necessary to accurately explain the relevance of vegetable and fruit intake with bone mineral density and bone metabolism. Also, efforts will be required to increase vegetable and fruit intake.