• Title/Summary/Keyword: department of adaptability

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Comparison of Growth and Yield Characteristics for the Desert Climate Adaptability of European Long- and Medium-sized Cucumber Varieties (유럽계 장과형과 중과형 오이 품종의 사막기후 적응성 검증을 위한 생육 및 수량 특성 비교)

  • Yoon, Seoa;Kim, Jeongman;Choi, Eunyoung;Choi, Kiyoung;Choi, Kyunglee;Nam, Kijeong;Oh, Seokkwi;Bae, Jonghyang;Lee, Yongbeom
    • Journal of Bio-Environment Control
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    • v.31 no.2
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    • pp.125-132
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    • 2022
  • This study aimed to examine cucumber (Cucumis sativus) varieties adaptive to the desert climate by comparing and analyzing the growth, yield, and water consumption. Two long-sized cucumber varieties, 'Gulfstream' and 'Imea' and two medium-sized cucumbers, 'Nagene' and 'Sausan' were cultivated in coir substrate hydroponics under hot and humid greenhouse conditions from March 2 to June 20, 2020. On the 113 DAT, 'Nagene' had the longest plant height and the highest internode number. The marketable fruit number per plant was higher in the medium-sized varieties, which had more internode number. The marketable fruit number was 31.3 for 'Gulfstream', 30.7 for 'Imea', 57.8 for 'Nagene', or 56.0 for 'Sausan' with no significant difference in total fruit weights per plant. The water consumption required to produce 200 g of fruit was lower in the 'Nagene' (2.39 L) with the highest water use efficiency (WUE). Therefore, 'Nagene' variety may have higher adaptability to desert high temperature compared to the long-sized varieties, and it is going to be necessary to verify more medium-sized cucumber varieties.

Evaluation of Regional Adaptability in Introduced Super Sweet Corn Hybrids and Heritability of Agronomic Traits (도입 초당옥수수 교잡종의 지역 적응성 및 농업 형질의 유전력 평가)

  • Lee, Shin-Young;Kang, Jong-won;Wang, Seung-hyun;Park, Tai-choon;Chung, Jong-Wook;So, Yoon-Sup
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.66 no.2
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    • pp.130-137
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    • 2021
  • This study evaluated newly introduced, commercial super sweet corn hybrids (Zea mays L.) for their potential as breeding materials. Agronomic traits were measured and variance components were obtained using a linear mixed model to estimate the heritability. The trials were carried out in 2018 at two locations (Haenam and Oksan in South Korea). All traits had low heritability, except for mid tasseling and silking days. These traits with low heritability mostly had low genetic variance component estimate. In case of ear height ratio, significant genotype by location appeared to be responsible for low genetic variance, which in turn led to low heritability. Low heritability estimates from the trials with commercial hybrids were perhaps because those hybrids were highly improved for commercial success. Hence, this does not necessarily point to them having poor potential as breeding materials. To overcome low heritability, significant genotype by environment interaction, and achieve high selection efficiency, intermating among hybrids is recommended to create new recombinants before inbred line development.

An Adaptive Speed Estimation Method Based on a Strong Tracking Extended Kalman Filter with a Least-Square Algorithm for Induction Motors

  • Yin, Zhonggang;Li, Guoyin;Du, Chao;Sun, Xiangdong;Liu, Jing;Zhong, Yanru
    • Journal of Power Electronics
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    • v.17 no.1
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    • pp.149-160
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    • 2017
  • To improve the performance of sensorless induction motor (IM) drives, an adaptive speed estimation method based on a strong tracking extended Kalman filter with a least-square algorithm (LS-STEKF) for induction motors is proposed in this paper. With this method, a fading factor is introduced into the covariance matrix of the predicted state, which forces the innovation sequence orthogonal to each other and tunes the gain matrix online. In addition, the estimation error is adjusted adaptively and the mutational state is tracked fast. Simultaneously, the fading factor can be continuously self-tuned with the least-square algorithm according to the innovation sequence. The application of the least-square algorithm guarantees that the information in the innovation sequence is extracted as much as possible and as quickly as possible. Therefore, the proposed method improves the model adaptability in terms of actual systems and environmental variations, and reduces the speed estimation error. The correctness and the effectiveness of the proposed method are verified by experimental results.

Applying Information and Communication Technologies as A Scope of Teaching Activities and Visualization Techniques for Scientific Research

  • Viktoriya L. Pogrebnaya;Natalia O. Kodatska;Viktoriia D. Khurdei;Vitalii M. Razzhyvin;Lada Yu. Lichman;Hennadiy A. Senkevich
    • International Journal of Computer Science & Network Security
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    • v.23 no.2
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    • pp.193-198
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    • 2023
  • The article focuses on the areas of education activities in using techniques for teaching and learning with information and communication technologies (ICTs), researching and analyzing the available ICTs, gearing the technologies to the specific psychological and pedagogical conditions, independently building and modeling ICTs, enlarging and developing their use in the learning environment. The visualization of scientific research has been determined to be part of the educational support for building students' ICT competence during teaching and learning and is essential to the methodology culture. There have been specified main tasks for pedagogy technologies (PTs) to develop the skills of adaptability to the global digital space in students, their effective database operation and using the data bases as necessary elements for learning and as part of professional training for research. We provided rationalization for implementing the latest ICTs into the Ukrainian universities' curricula, as well as creating modern methods for using the technologies in the learning / teaching process and scientific activities.

Temporal Exploration of New Nurses' Field Adaptation Using Text Network Analysis

  • Ahn, Shin Hye;Jeong, Hye Won;Yang, Seong Gyeong;Jung, Ue Seok;Choi, Myoung Lee;Kim, Heui Seon
    • Journal of Korean Academy of Nursing
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    • v.54 no.3
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    • pp.358-371
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    • 2024
  • Purpose: This study aimed to analyze the experiences of new nurses during their first year of hospital employment to gather data for the development of an evidence-based new nurse residency program focused on adaptability. Methods: This study was conducted at a tertiary hospital in Korea between March and August 2021 with 80 new nurses who wrote in critical reflective journals during their first year of work. NetMiner 4.5.0 was used to conduct a text network analysis of the critical reflective journals to uncover core keywords and topics across three periods. Results: In the journals, over time, degree centrality emerged as "study" and "patient understanding" for 1 to 3 months, "insufficient" and "stress" for 4 to 6 months, and "handover" and "preparation" for 7 to 12 months. Major sub-themes at 1 to 3 months were: "rounds," "intravenous-cannulation," "medical device," and "patient understanding"; at 4 to 6 months they were "admission," "discharge," "oxygen therapy," and "disease"; and at 7 to 12 months they were "burden," "independence," and "solution." Conclusion: These results provide valuable insights into the challenges and experiences encountered by new nurses during different stages of their field adaptation process. This information may highlight the best nurse leadership methods for improving institutional education and supporting new nurses' transitions to the hospital work environment.

Effects of Layers of Non-woven Fabric on the Growth and Flowering of Edile Flower Tropaeolum majus L. in the Vertical Greening System for Lower Maintenance Urban Agriculture (저관리 도시농업을 위한 벽면녹화 부직포 처리가 식용꽃인 한련화(Tropaeolum majus L.)의 생육과 개화에 미치는 영향)

  • Park, Jae-Hyeon;Yoon, Young-Han;Lee, Jae-Man;Song, Hee-Yeon;Ju, Jin-Hee
    • Journal of Environmental Science International
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    • v.28 no.6
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    • pp.545-552
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    • 2019
  • Tropaeolum majus, with a high decorative and food demand for vertical greening systems, has been utilized to revitalize urban agriculture. The effects of number of non-woven fabrics in a non-water environment and the adaptability of T. majus to this system were investigated. Planting ground composition of the container-type wall vertical greening system was made using non-woven fabric in one, two, three, or four layers. The results showed that the soil water content remained the highest when the non-woven fabric comprised 4 sheets. The morphological properties showed more growth with the 4 sheets than with 1, 2, and 3 sheets. In terms of physiological characteristics, chlorophyll content was mostly high in the 4 sheets, while shoot fresh weight value was in the order of 3 > 4 > 2 > 1 sheet, and root fresh weight value was in the order of 4 > 2 > 1 > 3 sheets. The dry weight of the measured values in the shoot was in the order of 4 > 3 > 2 > 1 sheet while no clear difference was found in the root of each treatment. The difference in the flowring characteristics was not different, but in evaluating the characteristics as a whole, the growth in the three layers of non-waven fabric was the best. In addition, the soil moisture contents and the growth characteristics were statistically significant as a positive correlation between the groups. Thus, greater the non-woven fabric, the higher is the adaptability of T. majus to dry stress under soil water-free conditions by maintaining soil moisture content. This showed that it represented an effective alternative as a method of vertical greening system for lower maintenance urban agriculture.

Breeding of a New Silkworm Variety, Chugangjam, with a Sex-Limited Larval Marking and High Silk Yielding for Summer-Autumn Rearing Season

  • Kang, Pil-Don;Sohn, Bong-Hee;Lee, Sang-Uk;Woo, Soon-Ok;Hong, Sung-Jin
    • International Journal of Industrial Entomology and Biomaterials
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    • v.6 no.1
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    • pp.57-61
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    • 2003
  • A new silkworm variety, Chugangjam, with a sex-limited larval marking and high silk yielding for summer-autumn rearing season is $F_1$ hybrid between Jam 147, a Japanese race bred from P8503/8453, and Jam 148, a Chinese race from M8306/Jam 130. Jam 147, Japanese parent of the Chugangjam showed a high GCA (general combining ability) in pupation percentage and Jam 148, Chinese parent, showed a high GCA in pupation percentage and single cocoon weight. In the local adaptability test performed at 8 local areas in autumn of 2001, Chugangjam was 5% higher in cocoon yield and 8% in raw silk productivity in the 10,000 of the 3rd molted larvae, respectively, than the check variety Daesungjam.

WILLIAMS SYNDROME : TWO CASES (Williams 증후군 환아의 치의학적 소견에 대한 증례 보고)

  • Kim, Ji-Hee;Choi, Byung-Jai;Choi, Hyung-Jun;Song, Je-Seon;Lee, Jee-Ho
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.4 no.1
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    • pp.12-16
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    • 2008
  • Williams syndrome is a rare genetic disorder with a frequency of one per 20,000~50,000 live births. It is caused by a deletion of one elastin allele located within chromosome subunit 7q11.23(long arm). This syndrome is frequently accompanied by disorders such as congenital heart disease, facial anomalies, mental retardation, and so on. The characteristic facial appearance includes full lips, rounded cheeks, broad forehead, periorbital fullness, flattened bridge of nose, small nose with anteverted nostril, long filtrum and low-set ears. In oral features, hypodontia, high prevalence of dental caries, microdontia, enamel hypoplasia, delayed eruption, and malocclusions have been found. Most adult patients with Williams syndrome lack social adaptability and lead seclusive lives, however, young patients are rather very friendly and talkative, and seem smarter than their actual intellectual quotients. They also tend to favor staying with grown-ups rather than mixing with their peers, and tend to present problematic temper tantrum during dental treatment.

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Industry 4.0 - A challenge for variation simulation tools for mechanical assemblies

  • Boorla, Srinivasa M.;Bjarklev, Kristian;Eifler, Tobias;Howard, Thomas J.;McMahon, Christopher A.
    • Advances in Computational Design
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    • v.4 no.1
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    • pp.43-52
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    • 2019
  • Variation Analysis (VA) is used to simulate final product variation, taking into consideration part manufacturing and assembly variations. In VA, all the manufacturing and assembly processes are defined at the product design stage. Process Capability Data Bases (PCDB) provide information about measured variation from previous products and processes and allow the designer to apply this to the new product. A new challenge to this traditional approach is posed by the Industry 4.0 (I4.0) revolution, where Smart Manufacturing (SM) is applied. The manufacturing intelligence and adaptability characteristics of SM make present PCDBs obsolete. Current tolerance analysis methods, which are made for discrete assembly products, are also challenged. This paper discusses the differences expected in future factories relevant to VA, and the approaches required to meet this challenge. Current processes are mapped using I4.0 philosophy and gaps are analysed for potential approaches for tolerance analysis tools. Matching points of simulation capability and I4.0 intents are identified as opportunities. Applying conditional variations, incorporating levels of adjustability, and the un-suitability of present Monte Carlo simulation due to changed mass production characteristics, are considered as major challenges. Opportunities including predicting residual stresses in the final product and linking them to product deterioration, calculating non-dimensional performances and extending simulations for process manufactured products, such as drugs, food products etc. are additional winning aspects for next generation VA tools.

Restoration using dental CAD/CAM system in severe tooth wear patient: A case report

  • Kee, Wonjin;Kim, Hyeran;Lim, Hyun-Pil;Yun, Kwi-Dug;Park, Chan
    • Oral Biology Research
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    • v.42 no.4
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    • pp.262-268
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    • 2018
  • In a situation where a vertical dimension has to be increased, the normal occlusion, function and aesthetics should be restored after taking into consideration the neuromuscular system and temporomandibular join. In order to do this, the provisional prosthesis should be made according to the patient's information. Moreover, the period of adjustment should be made through the provisional prosthesis modification, if necessary. The patient is then transferred to the final prosthesis to obtain results that are satisfactory. In the modern-day world, provisional prosthesis are replicated using three dimensional scanning and computer aided design/computer aided manufacturing (CAD/CAM) then made into final prosthesis. The adaptability of stomatognathic system can be judged by the PMMA provisional restoration. Functional and aesthetical aspect can be obtained. The adjustment period can be shortened by an intraoral correction and proper wear between provisional restorations. By using the CAD/CAM technology that transfers the information right into the final prosthesis.