• Title/Summary/Keyword: Adverse conditions

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An Approach to Improve Romanian Geological Repository Planning

  • Andrei, Veronica;Prisecaru, Ilie
    • Nuclear Engineering and Technology
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    • v.48 no.2
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    • pp.495-504
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    • 2016
  • International standards recommend typical phases to be included within any national program for the development of a geological repository dedicated to disposal of the high level radioactive wastes generated in countries using nuclear power. However, these are not universally applicable and the content of each of these phases may need to be adapted for each national situation and regulatory and institutional framework. Several national geological repository programs have faced failures in schedules and have revised their programs to consider an adapted phased management approach. The authors have observed that in the case of those countries in the early phases of a geological repository program where boundary conditions have not been fully defined, international recommendations for handling delays/failures in the national program might not immediately help. This paper considers a case study of the influences of the national context risks on the current planning schedule of the Romanian national geological repository. It proposes an optimum solution for an integrated response to any significant adverse impact arising from these risks, enabling sustainable program planning.

Effect of Vibration during Distribution Process on Compression Strength of Corrugated Fiberboard Containers for Agricultural Products (농산물 골판지포장상자의 수송 중 진동에 의한 압축강도 변화)

  • Jo, Jung-Youn;Shin, Jun-Sub;Kim, Jong-Kyoung
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 2008.04a
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    • pp.290-307
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    • 2008
  • The aim of this study was to estimate adverse effect on compression strength of corrugated fiberboard containers due to vibration during distribution process. Distribution environment such as road conditions and compression strength of corrugated fiberboard containers for selected agricultural products were studied. We found that increasing humidity does not effect significantly on natural frequencies of boxes, but results in accelerative effect to decrease compression strength of boxes. Box structures and product types also effect on loss of compression strength greatly.

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Production of Single-Cell Protein on Petroleum Hydrocarbon (석유탄화수소를 이용한 단세포단백질의 생산에 관한 연구 3)

  • 변유량;권태완
    • Korean Journal of Microbiology
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    • v.9 no.3
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    • pp.95-102
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    • 1971
  • The growth characteristics of Candida tropicalis KIST 351 on gas oil substrate under different culture conditions were investigated and the preliminary animal feeding experiments using this yeast as a partial substitute of fish meal was also conducted. The yeast assimilates effectively n-paraffins in gas oil ranging from $C_{16}$ to $C_{16}$ with its maximum cell growth at $33^{\circ}C$ and pH 5.5 with aeration of 3 vvn and agitation of 900 rpm. The optimal concentrations of nitrogen sources, $HK_2PO_4$ and $Na_2HPO$ were 4, 2 and 0.5g/1, respectively. Ferrous sulfate, manganese sulfate and zinc sulfate showed positive effect to cell growth with the optimal range of 5-10 ppm. In the feeding experiment with 3 and 5% incorporation of the gas oil grown yeast, neither adverse effects on growth of chicks nor toxic effect were observed. Protein content of the dried cell was 58.8% and its amino acid composition compared well with other single-cell protein products and FAO reference protein.

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Differentially expressed genes of Acanthamoeba castellanii during encystation

  • Moon, Eun-Kyung;Chung, Dong-Il;Hong, Yeon-Chul;Kong, Hyun-Hee
    • Parasites, Hosts and Diseases
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    • v.45 no.4
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    • pp.283-285
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    • 2007
  • To examine the expressed gene profile during encystation of Acanthamoeba castellanii Castellani, we used differentially expressed gene (DGE) screening by RT-PCR with 20 sets of random primers. From this analysis, we found that approximately 16 genes showed up regulation during encystation. We chose 6 genes, which had relatively higher expression levels, for further investigation. Based on homology search in database, DEG2 showed 55% of similarity with xylose isomerase, DEG9 showed 37% of similarity with Na P-type ATPase, and DEG14 showed 77% of similarity with subtilisin-like serine proteinase. DEG3 and DEG26 were identified as hypothetical proteins and DEG25 exhibited no significant similarity to any known protein. Encystation of Acanthamoeba has been suggested to be a process to resist adverse environmental or nutritional conditions. Further characterization studies of these genes may provide us with more information on the encystation mechanism of Acanthamoeba.

Deep Convolutional Neural Network with Bottleneck Structure using Raw Seismic Waveform for Earthquake Classification

  • Ku, Bon-Hwa;Kim, Gwan-Tae;Min, Jeong-Ki;Ko, Hanseok
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.1
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    • pp.33-39
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    • 2019
  • In this paper, we propose deep convolutional neural network(CNN) with bottleneck structure which improves the performance of earthquake classification. In order to address all possible forms of earthquakes including micro-earthquakes and artificial-earthquakes as well as large earthquakes, we need a representation and classifier that can effectively discriminate seismic waveforms in adverse conditions. In particular, to robustly classify seismic waveforms even in low snr, a deep CNN with 1x1 convolution bottleneck structure is proposed in raw seismic waveforms. The representative experimental results show that the proposed method is effective for noisy seismic waveforms and outperforms the previous state-of-the art methods on domestic earthquake database.

Principles and Conceptual Framework for the Introduction of Korean Sickness Benefit (한국형 상병수당 도입을 위한 제도 설계의 원칙과 개념적 틀)

  • Kang, Hee-Chung
    • Health Policy and Management
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    • v.31 no.1
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    • pp.5-16
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    • 2021
  • Both access to healthcare services and income security in case of personal illness are being needed to achieve universal health coverage, which is enshrined in the human rights to health and social security and international standards on social protection. Income security acts on both the social determinants and the adverse consequences of ill health and thus would break the vicious disease-poverty cycle. The government is supposed to implement a demonstration project of sickness benefit in 2022 and to publicize its more specific blueprint for all workers. This study is to suggest basic principles and a framework to design a new sickness benefit for universal health coverage, which is based on reviews on previous studies, related issues, and institutional conditions. This is to provide a theoretical basis to promote further discussion and to support its decision-making.

Kidney protective potential of lactoferrin: pharmacological insights and therapeutic advances

  • Zahan, Md. Sarwar;Ahmed, Kazi Ahsan;Moni, Akhi;Sinopoli, Alessandra;Ha, Hunjoo;Uddin, Md Jamal
    • The Korean Journal of Physiology and Pharmacology
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    • v.26 no.1
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    • pp.1-13
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    • 2022
  • Kidney disease is becoming a global public health issue. Acute kidney injury (AKI) and chronic kidney disease (CKD) have serious adverse health outcomes. However, there is no effective therapy to treat these diseases. Lactoferrin (LF), a multi-functional glycoprotein, is protective against various pathophysiological conditions in various disease models. LF shows protective effects against AKI and CKD. LF reduces markers related to inflammation, oxidative stress, apoptosis, and kidney fibrosis, and induces autophagy and mitochondrial biogenesis in the kidney. Although there are no clinical trials of LF to treat kidney disease, several clinical trials and studies on LF-based drug development are ongoing. In this review, we discussed the possible kidney protective mechanisms of LF, as well as the pharmacological and therapeutic advances. The evidence suggests that LF may become a potent pharmacological agent to treat kidney diseases.

Therapeutic Effect of Autologous Activated Platelet-rich Plasma Therapy on Mid-dermal to Full-thickness Burns: A Case Series

  • Karina, Karina;Ekaputri, Krista;Biben, Johannes Albert;Hadi, Pritha;Andrew, Hubert;Sadikin, Patricia Marcellina
    • Archives of Plastic Surgery
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    • v.49 no.3
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    • pp.405-412
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    • 2022
  • Although modern medicine has made great strides in the management of burn injuries, associated complications such as pain, infection, dyspigmentation, and scarring have yet to be fully dealt with. Although skin grafting and meshing are routinely performed on burn patients, this method poses a risk for adverse effects. Activated autologous platelet-rich plasma (aaPRP), which is increasingly used in the field of plastic surgery, contains growth factors beneficial for wound regeneration. Seven cases of burns with varying severity and conditions that were treated with intralesional subcutaneous injection and intravenous aaPRP are presented and discussed herein. This case series indicates that subcutaneous and intravenous aaPRP is a safe procedure with the potential to be an alternative when skin grafting cannot be done or as an adjunct treatment to skin grafting.

A Qualitative Study Understanding Unsafe Behaviors of Workers in Construction Sites

  • Sangwook Suh
    • Korean Journal of Construction Engineering and Management
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    • v.24 no.6
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    • pp.91-98
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    • 2023
  • Construction accidents result from a combination of factors, including both the actions of workers and the safety conditions on site. Despite advancements in enhancing construction site safety, there remains a gap in comprehending the cognitive processes underlying workers' unsafe behavior. This paper investigates and validates a qualitative model that delves into the potential causes of workers' unsafe actions by examining their cognitive processes, employing a system dynamics approach. By analyzing the interplay of various loops within this model, it offers both short- and long-term safety strategies for managers intent on minimizing unsafe behavior among workers. Specifically, safety managers should prioritize increasing workers' awareness of hazards through education and fostering a positive safety mindset. Moreover, they should task frontline supervisors with directly addressing and rectifying instances of unsafe behavior by workers. Lastly, construction safety managers ought to formulate safety strategies that take into account the cognitive states of workers to mitigate any adverse consequences of biased safety management. The outcomes of this research contribute to our comprehension of methods to enhance hazard perception among workers, curtail unsafe actions, and ultimately reduce construction accidents from a cognitive standpoint.

Utilization of Flight Data Analysis for EBT(Evidence Based Training) Program (EBT(Evidence Based Training) 훈련프로그램의 비행 데이터 분석 활용방안)

  • Jihun Choi;Jong Hoon Ahn;Hyeon Deok Kim
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.31 no.4
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    • pp.1-6
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    • 2023
  • EBT has designed and implemented a training program that relies on evidence from events such as Flight Operation Quality Assurance (FOQA), accidents, and incidents specific to each airline. The goal is to enhance the overall skills of the flight crew. This involves assessing the capabilities of individual crew members and, based on the findings, providing additional training to address any shortcomings. To create a training program aligned with the objectives of EBT, this study focused on analyzing data from hard landing incidents in domestic airlines obtained through FOQA events. A practical EBT training program was then developed, specifically targeting adverse weather conditions. The program evaluates landing capabilities, and the results guide the supplementation of any deficiencies in the landing skills of each flight crew member, ultimately aiming to enhance their confidence.