• Title/Summary/Keyword: Crowding-in

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A basic study on the users' activities and cognition for management in Moaksan Provincial park (모악산 도립공원 관리방안에 과한 기초연구)

  • Kim, Sei-Chon;Huh, Joon;Rho, Jae-Hyun;Kang, Cheol-Gi
    • Journal of the Korean Institute of Landscape Architecture
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    • v.23 no.4
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    • pp.28-39
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    • 1996
  • The purpose of this study is to suggest objective basic data for park management proposal through the quantitative analysis of users' needs and satisfaction for the actual conditions of management in Moaksand provincial park. For this, users' needs and satisfaction for facilities have been analyzed. And user's satisfaction for the actual conditions of management had been analyzed by using the multiple regression. Users want more toilets and sign boards and to replace damaged facilities. Users gave thought to trail and had high pressure to improvement, and many users were uncomfortable by crowding, and had a positive view to restrict use of intensity. Systematic careful concern about trail and rest area should be need and periodic observation to change of facility condition also. According to the multiple regression analysis, the major variable to the satisfaction for the actual condition of facilities management was trail ground condition.

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Correction of Angle Class II division 1 malocclusion with a mandibular protraction appliances and multiloop edgewise archwire technique

  • Freitas, Benedito;Freitas, Heloiza;dos Santos, Pedro Cesar F.;Janson, Guilherme
    • The korean journal of orthodontics
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    • v.44 no.5
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    • pp.268-277
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    • 2014
  • A Brazilian girl aged 14 years and 9 months presented with a chief complaint of protrusive teeth. She had a convex facial profile, extreme overjet, deep bite, lack of passive lip seal, acute nasolabial angle, and retrognathic mandible. Intraorally, she showed maxillary diastemas, slight mandibular incisor crowding, a small maxillary arch, 13-mm overjet, and 4-mm overbite. After the diagnosis of severe Angle Class II division 1 malocclusion, a mandibular protraction appliance was placed to correct the Class II relationships and multiloop edgewise archwires were used for finishing. Follow-up examinations revealed an improved facial profile, normal overjet and overbite, and good intercuspation. The patient was satisfied with her occlusion, smile, and facial appearance. The excellent results suggest that orthodontic camouflage by using a mandibular protraction appliance in combination with the multiloop edgewise archwire technique is an effective option for correcting Class II malocclusions in patients who refuse orthognathic surgery.

Design of low-noise II R filter with high-density and low-power properties (고집적, 저전력 특성을 갖는 저잡음 IIR 필터 설계)

  • Bae Sung-hwan;Kim Dae-ik
    • The KIPS Transactions:PartA
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    • v.12A no.1 s.91
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    • pp.7-12
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    • 2005
  • Scattered look-ahead(SLA) pipelining method can be efficiently used for high-speed or low-power applications of digital II R filters. Although the pipelined filters are guaranteed to be stable by this method, these filters suffer from large roundoff noise when the poles are crowded within some critical regions. An angle and radius constrained II R fille. design approach using modified Remez exchange algorithm and least squares algorithm is proposed to avoid tight pole-crowding in pipelined filters, resulting in improved frequency responses and reduced coefficient sensitivities. Experimental results demonstrate that our proposed method leads to chip area reduction by $33{\%}$ and low power by $45{\%}$ against the conventional method.

Green Panel Lighting Fixture of LED Lamp for Aquaculture and Marine Aquanautics (수중 양식과 탐사를 위한 LED 녹색평판조명램프)

  • Soh, Hyun-Jun;Kang, Sang-Taek;Kim, Jae-Gyun;Soh, Dea-Wha
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.730-733
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    • 2010
  • The Green Lamp Fixture (GLF) of LED prepared with thin panel structure was investigated for illumination of street lamps and other lighting system uses, which was also very useful to aquaculture and aquafarm lighting uses, or fish luring lights and marine aquanautics of aquamarinautics (aquamarine+aquanautics) uses, etc. In the case of fish luring lights, it was verified that the fish luring of Green Lamp Fixture of LED was very effective for phototaxis movement and ecological community promotion to the micro-living things of organisms and the small fries and fishes, like as 'crowding together'. For the aquaculture lightings, it was also very excellent in waterproof and heat-sink properties, photosynthetic growing of algae and micro-organisms, water-weeds and seaweeds living underwater.

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Is Currency Depreciation or More Government Debt Expansionary? The Case of Malaysia

  • Hsing, Yu
    • Asian Journal of Business Environment
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    • v.7 no.4
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    • pp.5-9
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    • 2017
  • Purpose - Many countries rely on currency depreciation or debt-financed government spending to stimulate their economies. Currency depreciation tends to increase net exports and aggregate demand but reduce short-run aggregate supply due to higher import costs. Debt-financed government spending increases aggregate demand, but the crowding-out effect due to a higher real interest rate may reduce private spending and aggregate demand. Therefore, the net impact of currency depreciation or debt-financed government spending on equilibrium real GDP is unclear. Research design, data, and methodology - This paper examines potential impacts of real depreciation of the ringgit, more government debt as a percent of GDP and other relevant macroeconomic variables on aggregate output in Malaysia. Results - Applying the AD/AS model, this paper finds that aggregate output in Malaysia is positively associated with real appreciation during 2005.Q3-2010.Q3, real depreciation during 2010.Q4-2016.Q1, the debt-to-GDP ratio and the real stock price, negatively affected by the real lending rate and inflation expectations, and is not influenced by the real oil price. Conclusions - Real depreciation of the ringgit after 2010. Q3 or sustainable expansionary fiscal policy would be beneficial to the economy.

Multi-objective Optimization Model with AHP Decision-making for Cloud Service Composition

  • Liu, Li;Zhang, Miao
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.9
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    • pp.3293-3311
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    • 2015
  • Cloud services are required to be composed as a single service to fulfill the workflow applications. Service composition in Cloud raises new challenges caused by the diversity of users with different QoS requirements and vague preferences, as well as the development of cloud computing having geographically distributed characteristics. So the selection of the best service composition is a complex problem and it faces trade-off among various QoS criteria. In this paper, we propose a Cloud service composition approach based on evolutionary algorithms, i.e., NSGA-II and MOPSO. We utilize the combination of multi-objective evolutionary approaches and Decision-Making method (AHP) to solve Cloud service composition optimization problem. The weights generated from AHP are applied to the Crowding Distance calculations of the above two evolutionary algorithms. Our algorithm beats single-objective algorithms on the optimization ability. And compared with general multi-objective algorithms, it is able to precisely capture the users' preferences. The results of the simulation also show that our approach can achieve a better scalability.

RETROSPECTIVE ANALYSIS OF FACTORS INFLUENCING THE ERUPTION OF SUPERNUMERARY TOOTH (과잉치의 맹출에 영향을 주는 요소에 대한 후향적인 연구)

  • Lee, Dong-Geul;Chang, In-Geul;Hong, Jong-Rak
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.34 no.4
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    • pp.445-449
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    • 2008
  • Unerupted or erupted supernumerary tooth may cause crowding, diastema, cyst formation, resorption, and displacement or rotation of adjacent teeth. However, there are few studies about prognosis about the pathologic condition and expectation of spontaneous eruption. The object of this study is to evaluate factors predicting the spontaneous eruption of supernumerary tooth. 431 patients (346 males and 85 females, aged from 5 to 29 years) who visited our institution from 2002-2006 and were shown to have 471 mesiodentes was reviewed. Supernumerary teeth were classified inverted and not inverted state. In case of not inverted supernumerary tooth, eruption rate ac cording to length of supernumenary tooth, width of the tooth, angle between the tooth and incisor tooth, location (inside the incisor or not) and shape (conical or tubercle) were investigated. The regression model showed that length, width and angle were all important determinants of influencing the eruption of supernumerary tooth (p < 0.001, Pearson R: 0.619). There is no relation between shape and eruption of supernumerary tooth (p > 0.05). Location of mesiodens has an effect on eruption of supernumerary tooth (p < 0.01).

Factors Affecting the Number of Emergency Department Visits by Caregivers of Children with Fever (발열 환아 보호자의 응급실 방문 횟수에 영향을 미치는 요인)

  • Kim, Minae;Kim, Nahyun
    • Journal of Korean Biological Nursing Science
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    • v.24 no.1
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    • pp.46-57
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    • 2022
  • Purpose: This study aimed to identify factors affecting the number of emergency department visits by caregivers of children with fever. Methods: Data were collected from 145 caregivers whose children aged six or less with two or more emergency department visits annually mainly because of fever. Collected data were analyzed with descriptive frequency analysis, independent t-test, Fisher exact, one-way ANOVA, Scheffé test, Dunnett T3, Pearson's correlation, and stepwise multiple regression using SPSS 25.0 software. Results: Regression analysis results revealed that among factors influencing the number of emergency department visits by caregivers of children with fever were state anxiety (β= .35, p= .009), self-efficacy (β= -.29, p= .029), and gestational age of the children (β= .17, p= .010). These variables had an explanatory power of 42.3% concerning the number of emergency department visits. Conclusion: Our findings revealed that caregivers' level of state anxiety and self-efficacy were major factors influencing the number of emergency department visits. It is expected that providing education concerning fever and emotional support for caregivers of children with fever can relieve their anxiety and enhance their self-efficacy levels, which in turn may reduce the number of unnecessary emergency department visits of children with fever and ultimately address the issue of over-crowding in emergency department.

The Use of Haar Cascade Result selection algorithm to check Wearing Masks and Fever Abnormality (Haar Cascade 결괏값 선별 알고리즘을 통한 마스크 착용 여부와 발열 체크)

  • Kim, Eui-Jeong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.26 no.2
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    • pp.193-198
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    • 2022
  • Recently, place that you need to check wearing mask and body temperature to prevent the proliferation of COVID-19 increased. But these things often measured by man manually or by machine one by one, result may be different by measuring ways, so it wastes workforce. Also, the machine generally just measures the highest temperature of the face, criteria for fever can't be trusted too. A bottleneck may occur due to crowding of people at the entrance, and because most of the measurement sites are at one entrance, it is inconvenient to track the movement of COVID-19 Confirmed cases. Thus, in this study, we intend to propose a method for suppressing the spread of infection by automatically classifying and displaying in real time using camera, thermal camera, Haar Cascade, and result selection algorithm.

Anterior Open Bite with Temporomandibular Joint Osteoarthritis Treated with Skeletal Anchorage Device: A Case Report

  • Seo-Rin Jeong;So-Yoon Lee;Sung-Hoon Lim;Hye-Min Kim;Shin-Gu Kang;Hyun-Jeong Park
    • Journal of Oral Medicine and Pain
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    • v.48 no.3
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    • pp.123-130
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    • 2023
  • This case report describes the orthodontic treatment of a patient with severe anterior open bite and skeletal class II malocclusion with temporomandibular joint (TMJ) osteoarthritis (OA) of the left condyle. The 21-year-old male patient had open-bite malocclusion, mild crowding, and protrusion of the anterior teeth. Mild erosive changes were detected in the anterior part of the left mandibular condyle on cone-beam computed tomography; however, because no clinical symptoms were present, orthodontic treatment was performed. It is imperative to consider the potential implications of orthodontic treatment on the stability of the TMJ throughout the duration of treatment, as any instability can exacerbate TMJ OA. Hence, it is crucial to opt for the least invasive treatment modality available. In this regard, orthodontic treatment using a skeletal anchorage system as an alternative to conventional orthognathic surgery for patients with open bite holds great promise, as it not only ensures mandibular stability but also significantly ameliorates the open-bite condition.