• Title/Summary/Keyword: Overload factors

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Antecedents of News Consumers' Perceived Information Overload and News Consumption Pattern in the USA

  • Lee, Sun Kyong;Kim, Kyun Soo;Koh, Joon
    • International Journal of Contents
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    • v.12 no.3
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    • pp.1-11
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    • 2016
  • This exploratory study examines the critical factors associated with news consumers' perception of information overload and news consumption patterns. An online survey was conducted with Qualtrics panels (N = 1001). The demographics and three antecedent factors of perceived information overload were considered including the frequency of news access through multiple media platforms, level of attention to news, and interest in news. Three news consumption patterns were investigated as possible consequences of perceived information overload: news avoidance, selective exposure, and willingness to pay for news. The results of hierarchical regression analyses revealed a meaningful distinction between general and news information overload. Overall, news consumers who paid more attention to news through newer media/platforms/devices perceived higher levels of information overload, were more willing to pay for the news, and often avoided news or selectively exposed themselves to certain sources of news to manage news information overload.

Improvement of prediction methods of power increase in regular head waves using calm-water and resistance tests in waves

  • Chun, Ho-Hwan;Lee, Cheol-Min;Lee, Inwon;Choi, Jung-Eun
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.13 no.1
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    • pp.278-291
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    • 2021
  • This paper applies load variation method to predict speed-power-rpm relationship along with propulsive performances in regular head waves, and to derive overload factors (ITTC, 2018). 'Calm-water tests' and 'resistance test in waves' are used. The modified overload factors are proposed taking non-linearity into consideration, and applied to the direct powering, and resistance and thrust identity method. These indirect methods are evaluated through comparing the speed-power-rpm relationships with those obtained from the resistance and self-propulsion tests in calm water and in waves. The objective ship is KVLCC2. The load variation method predicts well the speed-power-rpm relationship and propulsion performances in waves. The direct powering method with modified overload factors also predicts well. The resistance and thrust identity method with modified overload factor predicts with a little difference. The direct powering method with overload factors predicts with a relatively larger difference.

The Factors Influencing on the Social Networking Service Fatigue and SNS Stresses based on the Smart Phone (소셜네트워크 특성이 스트레스 요인과 SNS 피로감에 미치는 영향)

  • Noh, Mi Jin;Jang, Sung Hee
    • The Journal of Information Systems
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    • v.25 no.4
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    • pp.163-179
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    • 2016
  • Purpose This study investigates the associations between SNS fatigue and stress of smartphone SNS, with SNS characteristics. The study focuses on two types of SNS characteristics: information and systems characteristics. We examine SNS stress factors that includes the communication and system overload. Design/methodology/approach To test the proposed hypotheses, the study conducted structural equation modeling with Smart PLS 3.0. The study conducted A sample of 286 participants was collected from SNS users. Findings The results indicated that the information relevance in the information characteristics had an effect on the communication overload, but it had not an effect on the system overload. The information accuracy had an effect on the communication and system overload. The app pace of change influenced the communication and system overload, but the app complexity influenced the system overload. Finally, the SNS stress showed significant relationship with SNS fatigue. The academic and managerial implications were discussed based on the this results.

AN ANALYSIS AND MANAGEMENT OF FRACTURED IMPLANTS (파절된 임프란트 고정체의 분석과 처치)

  • Han Chang-Hyun;Kim Sung-Hyun;Hee Seong-Joo;Ku Young
    • The Journal of Korean Academy of Prosthodontics
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    • v.39 no.1
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    • pp.25-36
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    • 2001
  • Among the numerous factors contributing to implant failure, the most common are infection, failure of proper healing and overload. These factors may occur combined. Implant fractures are one of the complications resulting from overload. Implant fracture is not a common feature, but once it occurs it causes very unpleasant circumstances for the patient as well as for the practitioner. Only few studies have been reported regarding this subject. Thus, little is known about its solutions. It is important that analyzing reasons for implant fracture and finding appropriate solutions. Factors leading to implant fracture are design, material defects, nonpassive fit of prosthetic framework and biomechanical overload. Previous studies have reported that implant fractures ares associated with marginal bone loss and occur mostly in the posterior regions and that most patients showing parafunctional habits also have implant fracture. Abutment and gold screw loosening or fracture were also observed in some of the cases previous to implant fracture. Similar observations were seen in our hospital as well. The following cases will present implant fracture cases which have been successfully treated regarding function and biomechanics. This was achieved by means of using increased number of futures, increasing fixture diameter and establishing proper occlusion.

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A Study of the Determinants of Distributors' Stress and Organizational Effectiveness in a Global Distribution Industry (글로벌 유통업 종사자의 스트레스 및 조직유효성의 결정요인에 관한 연구)

  • Lee, Jong-Keon;Kwon, Gi-Il
    • International Commerce and Information Review
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    • v.14 no.4
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    • pp.361-383
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    • 2012
  • This study examined the determinants of distributor stress and organizational effectiveness in a global distribution industry. This study suggested distributors' role factors and mindfulness as the key determinants of their stress and organizational effectiveness. Employees' role factors were classified into three factors: role ambiguity, role conflict, and role overload. Organizational effectiveness was classified into three factors: job satisfaction, organizational commitment, and turnover intention. Data were collected from 202 distributors in a global distribution industry. Results indicated that role conflict and role overload were significantly, positively related to distributors' stress, and that role ambiguity and mindfulness were negatively related to their stress. Results also indicated that role ambiguity was negatively related to job satisfaction and organizational commitment, and that role conflict and role overload were positively related to turnover intention. Finally, role overload was positively related to job satisfaction and organizational commitment and mindfulness was positively related to job satisfaction.

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The Study on the Safety Algorithm of Switchboard Considering Overload of Transformer in Distribution System (배전용 변압기의 과부하상태를 고려한 수배전반 안전 알고리즘에 관한 연구)

  • Chu, Cheol-Min;Kim, Jae-Chul;Kang, Bong-Suk;Ryu, Seung-Ki
    • Proceedings of the KIEE Conference
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    • 2006.07a
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    • pp.286-287
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    • 2006
  • In this paper, an experiment result on overload of distribution transformer was arranged by top oil temperature depending on capacity and time. This result shows the definition on overload of transformer is different by some factors such as ambient temperature and immediate load. In other words, increased temperature in range of regulation(50K) has time to spare even if the condition of transformer is overload. The algorithm presented in this paper is based on the international standard (IEEE std C57.91), and the safety of switchboard is diagnosed by this aspect mentioned on overload of transformer.

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A method of contouring occlusal surface for reduction of implant overload (Implant overload 감소를 위한 교합면 형성 방법)

  • Lee, Byung-Woo;Park, Chan-Jin;Cho, Lee-Ra;Yi, Yang-Jin
    • Journal of Dental Rehabilitation and Applied Science
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    • v.19 no.2
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    • pp.105-108
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    • 2003
  • After stage-two surgery, the highest incidence of failure has been attributed to implant overload. However, the biomechanical factors cited inthe literature that contribute to implant overload, such as bone type, cuspal inclination, horizontal offset, maxillary compared to mandibular arch, the inclusion of natural teeth within the prosthesis, and occlusal harmony are superimposed on physiologic variations. Following two cases, including reduction of cuspal inclination and usage of modified incisal pin, showed a method of contouring occlusal surface for reduction of unpreditable implant overload.

An Experimental Study on the Factors that Affect Fatigue Crack Growth Retardation Behavior in SM45C Steel (SM45C 강의 피로균열전파 지연거동에 미치는 영향인자에 관한 실험적 연구)

  • Kim, Seon-Jin;Kim, Jong-Hoon;Ahn, Seok-Hwan
    • Proceedings of the KSME Conference
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    • 2000.04a
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    • pp.55-60
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    • 2000
  • Constant ${\Delta}K$ fatigue crack growth tests were performed applying an intermediate multiple overload for SM45C steel. The purpose of the present study is to investigate the effects of specimen thickness at various baseline stress intensity levels$({\Delta}K_b)$, overload application frequency(a/W) and overload application frequency$(OL_{HZ})$ on fatigue crack growth retardation behavior. The principal results are summarized as follows. The amount of retardation for a given ${\Delta}K_b$ level is increased with increasing the baseline stress intensity level in all specimen thickness. The normalized minimum crack growth rate is increased with increasing the specimen thickness, except for ${\Delta}K=45MPa \sqrt m$. The retardation cycle is decreased with increasing the overload application position and increased with the overload application frequency.

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A Study on the Computation of Overload Probability Based on Bridge Load Rating Factor (교량내하력 값에 기초한 초과하중 확률 계산에 관한 연구)

  • Yang, Seung-Ie;Kim, Jin-Sung
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.7 no.2
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    • pp.125-134
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    • 2003
  • In order to rate current bridge load carrying capacity, typically two methods are used. These are Allowable Stress Rating (ASR) and Load Factor Rating (LFR). Using the rating factors, there are many attempts to make a connection between rating factors and probability concept. The main purpose of the paper is computing the probability of overload using rating factors and probability concept. In this paper, the load rating methods are briefly explained, and the probability concept is connected to rating factors by using live load from Weigh-in-Motion (WIM). Based on the live load model and rati ng factor, the computation procedure of the probability of overload is explained.

Pressure-Overload Cardiac Hypertrophy Is Associated with Distinct Alternative Splicing Due to Altered Expression of Splicing Factors

  • Kim, Taeyong;Kim, Jin Ock;Oh, Jae Gyun;Hong, Seong-Eui;Kim, Do Han
    • Molecules and Cells
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    • v.37 no.1
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    • pp.81-87
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    • 2014
  • Chronic pressure-overload cardiac hypertrophy is associated with an increased risk of morbidity/mortality, largely due to maladaptive remodeling and dilatation that progresses to dilated cardiomyopathy. Alternative splicing is an important biological mechanism that generates proteomic complexity and diversity. The recent development of next-generation RNA sequencing has improved our understanding of the qualitative signatures associated with alternative splicing in various biological conditions. However, the role of alternative splicing in cardiac hypertrophy is yet unknown. The present study employed RNA-Seq and a bioinformatic approach to detect the RNA splicing regulatory elements involved in alternative splicing during pressure-overload cardiac hypertrophy. We found GC-rich exonic motifs that regulate intron retention in 5' UTRs and AT-rich exonic motifs that are involved in exclusion of the AT-rich elements that cause mRNA instability in 3' UTRs. We also identified motifs in the intronic regions involved in exon exclusion and inclusion, which predicted splicing factors that bind to these motifs. We found, through Western blotting, that the expression levels of three splicing factors, ESRP1, PTB and SF2/ASF, were significantly altered during cardiac hypertrophy. Collectively, the present results suggest that chronic pressure-overload hypertrophy is closely associated with distinct alternative splicing due to altered expression of splicing factors.