http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Fatigue crack growth in metallic components: Numerical modelling and analytical solution
Danilo D’Angela,Marianna Ercolino 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.79 No.5
The paper presents innovative approaches for the simulation of fatigue crack growth (FCG) in metallic compact tension (CT) specimens using finite element (FE) analysis and analytical solution. FE analysis is performed in ABAQUS using the extended finite element method (XFEM) coupled with the direct cyclic low-cycle fatigue (LCF) approach. Novel methods are developed for the computation of the numerical crack growth by processing the analysis outputs. The numerical modelling is validated by considering past experimental data. The analytical solution for the fatigue life evaluation is formally reviewed, and novel fatigue damage descriptors are defined. The influence of the main sample/testing features on numerical and analytical fatigue life is extensively assessed by a parametric study. The discrepancy between the numerical and analytical estimations of the fatigue life of the components is investigated and correlated to the features of the testing/modelling. A statistical-based correction factor is finally proposed in order to enhance the analytical solution.
Angel A,de Larrazabal,FPSCS,FACS,Corazon Collantes-Jose,FPSCS 대한미용의학회 2017 대한미용의학회지 Vol.1 No.2
Background: Minimally invasive surgery is already at the forefront in all surgical specialties, including cosmetic surgery. Hence, we have adapted and modified our technique to offer a short-scar facelift with minimal tissue dissection and manipulation to surgically rejuvenate the aging face. Objective: This study aimed to surgically address the aging face and neck by employing this modified short-scar rhytidectomy with minimal dissection, manipulation, and using the correct vector suited for Asian faces as an alternative and innovative surgical procedure. Methods: We performed this short-scar facelift by combining the malar fad pad suspension and lamellar low superficial musculoaponeurotic system (SMAS) excision Results: From 2015 to 2017, we have performed 51 facelift procedures with our modification, with 8 men and 43 women, with a mean age of 64.30 years (range, 50-78 years). Of the 51 patients, 29 patients (56.86%) had regular follow-ups. Three complications were noted. One developed post-operative hematoma. The other developed seroma formation. The third developed split thickness skin necrosis. Majority of our patients were satisfied with the results. Conclusion: This combined malar fat pad suspension and lamellar low SMAS excision technique is a simple, safe, and effective alternative procedure for facelift. Level of Evidence: V
The Filipina Connection: the Face of Exploitation in Canada’s Live-in Caregiver Program
Angela G. Hick(Angela G. Hick ),Anton L. Allahar(Anton L. Allahar ) 한국캐나다학회 2011 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.17 No.1
In this paper we explore why the primary pool of employees in Canada’s Live-in Caregiver Program (LCP) are temporary migrant workers, particularly Filipinas, as well as how the Canadian government and its related institutions justify discrepancies in the rights and protections between Canadian workers and those who come legally under Canada’s various migrant worker schemes. In this context specific attention is paid to live-in caregivers or those women who come under the domestic worker scheme. The analysis of the Canadian Live-in Caregiver Program will highlight the dominant ideologies underlying and motivating the federal government’s justification for: (a) the continuation of the program despite great external resistance; (b) the subordinate status of live-in caregivers that derives from their position as “non-citizens;” (c) the subordinate position domestic workers experience as working class women of colour; and (d) the reasoning behind a reliance on female temporary migrant workers of a specific demographic to care for Canadian dependents. To frame the entire discussion we ask (rhetorically) how it is possible for a country such as Canada that prides itself on its positive human rights and worker rights reputation, to defend a program such as the LCP that goes against the much-celebrated image of ‘Canada the good.’
Angela Kingsley,Travis Williams,Dawn Lehman,Charels Roeder 한국강구조학회 2005 International Journal of Steel Structures Vol.5 No.5
Steel-beam-to-concrete-filled-steel-tube (CFT)-column composite frame systems have been widely used in moment resistingassociated with the steel beam-to-CFT-column moment connections within these frame systems. These include conventionalconnection details and new inovative connection details that have been developed to increase the productivity of fabricating,erecting and infilling concrete. Various new beam-to-CFT-column connection details have been developed. They are the mainstructural elements that affect the overall performance of frame systems as well as column and beam members. This paperdeformation relationship.
Real-Time Road Traffic Management Using Floating Car Data
Angela-Aida K. Runyoro,Jesuk Ko 한국지능시스템학회 2013 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.13 No.4
Information and communication technology (ICT) is a promising solution for mitigating road traffic congestion. ICT allows road users and vehicles to be managed based on real-time road status information. In Tanzania, traffic congestion causes losses of TZS 655 billion per year. The main objective of this study was to develop an optimal approach for integrating real-time road information (RRI) to mitigate traffic congestion. Our research survey focused on three cities that are highly affected by traffic congestion, i.e., Arusha, Mwanza, and Dar es Salaam. The results showed that ICT is not yet utilized fully to solve road traffic congestion. Thus, we established a possible approach for Tanzania based on an analysis of road traffic data provided by organizations responsible for road traffic management and road users. Furthermore, we evaluated the available road information management techniques to test their suitability for use in Tanzania. Using the floating car data technique, fuzzy logic was implemented for real-time traffic level detection and decision making. Based on this solution, we propose a RRI system architecture, which considers the effective utilization of readily available communication technology in Tanzania.
Angela J Burvill,Kevin Murray,Matthew W Knuiman,Joseph Hung 대한고혈압학회 2022 Clinical Hypertension Vol.28 No.-
Population health behaviour and risk factor surveys most often rely on self-report but there is a lack of studies assessing the validity of self-report using Australian data. This study investigates the sensitivity, specificity and agreement of self-reported hypertension and hypercholesterolaemia with objective measures at standard and more stringent diagnostic thresholds; and factors associated with sensitivity and specificity of self-report at different thresholds.This study was a secondary analysis of a representative community-based cross-sectional sample of 5,092 adults, aged 45–69 years, residing in Busselton, Western Australia, surveyed in 2010–2015. Participants completed a self-administered questionnaire. Blood pressure and serum cholesterol levels were measured.At currently accepted diagnostic thresholds, sensitivities of self-reported hypertension and hypercholesterolaemia were 58.5% and 39.6%, respectively and specificities were >90% for both. Agreement using Cohen’s kappa coefficient was 0.562 and 0.223, respectively. At two higher diagnostic thresholds, sensitivities of self-reported hypertension and hypercholesterolaemia improved by an absolute 14–23% and 15–25%, respectively and specificities remained >85%. Agreement was substantial for hypertension (kappa = 0.682–0.717) and moderate for hypercholesterolaemia (kappa = 0.458–0.533). Variables that were independently associated with higher sensitivity and lower specificity of self-report were largely consistent across thresholds and included increasing age, body mass index, worse self-rated health, diabetes and family history of hypertension.Self-reported hypertension and hypercholesterolaemia often misclassify individuals’ objective status and underestimate objective prevalences, at standard diagnostic thresholds, which has implications for surveillance studies that rely on self-reported data. Self-reports of hypertension, however, may be reasonable indicators of those with blood pressures ≥160/100 mmHg or those taking anti-hypertensive medications. Self-reported hypercholesterolaemia data should be used with caution at all thresholds.