Search results for "Placement."

Fatigue Design of Cruciform Joints including V-notch Effect at the Weld Toe

2014

Abstract The present paper proposes a new and more accurate fatigue life prediction model for fillet welded joints in steel subjected to constant amplitude loading. With the traditional fracture mechanics approach, the greatest difficulty when computing the fatigue life of a welded detail is to determine the initial crack size a0. The classical way to determine the stress intensity factor K (SIF) is by using the following formula Where σ is the applied stress, a is the crack size and g(a/T) the geometrical correction factor which has been determined by Gurney function or similar solutions. This approach is not accurate for short crack because of the singular V-notch behaviour close to the c…

The effect of women’s participation in labour market on postponement of childbearing: a comparison between Italy and Hungary

2012

This paper analyses the effect of the increasing female participation in the labour market onthe transition to first childbirth. In this analysis both the ge nerational and the regional perspective are taken into account to understand, how postponement behaviour is spreading from one region to the other and from one generation to the next. The analysis is based on the first wave of the Generations and Gender Survey of Italy and Hungary. It adopts a multilevel event history model to focus on the micro-level relationship between the transition to adulthood and reproductive behaviour, to understand the empirical importance of macro-level factors related to regional socio-economic and cultural …

Knowledge Representation in Travelling Texts:from Mirroring to Missing the Point

2014

<p><em>Today, information travels fast. Texts travel, too. In a corporate context, the question is how to manage which knowledge elements should travel to a new language area or market and in which form? The decision to let knowledge elements travel or not travel highly depends on the limitation and the purpose of the text in a new context as well as on predefined parameters for text travel. For texts used in marketing and in technology, the question is whether culture-bound knowledge elements should be domesticated or kept as foreign elements, or should be mirrored or moulded—or should not travel at all! When should semantic and pragmatic elements in a text be replaced and by w…

Variance estimation and asymptotic confidence bands for the mean estimator of sampled functional data with high entropy unequal probability sampling …

2013

For fixed size sampling designs with high entropy it is well known that the variance of the Horvitz-Thompson estimator can be approximated by the H\'ajek formula. The interest of this asymptotic variance approximation is that it only involves the first order inclusion probabilities of the statistical units. We extend this variance formula when the variable under study is functional and we prove, under general conditions on the regularity of the individual trajectories and the sampling design, that we can get a uniformly convergent estimator of the variance function of the Horvitz-Thompson estimator of the mean function. Rates of convergence to the true variance function are given for the re…

Conflict in Somalia: impact on child undernutrition

2017

Background: In Somalia, protracted conflict and persistent drought have caused population displacement and livelihood destruction. As a result, there is widespread child malnutrition. We aimed to determine the effects of conflict on wasting and stunting among children aged 6-59 months in Somalia 2007–2010.\ud \ud Methods: Data were from household nutritional surveys from 2007 to 2010, with 1,066 clusters covering 73,778 children, the Armed Conflict Location and Event Data (ACLED) project and remote sensing. We used Bayesian hierarchical spatial-temporal regression methods to examine the effects of conflict on wasting and stunting. A preliminary model included individual, household and envir…

Labour Market Policies and Recruitment in Europe and Italy

2017

Over the last few years, most studies and labour market policies have focused on the competence of people seeking employment. Few studies have tackled the issue from the point of view of employers and how policy might affect the personnel recruitment. The aim of this article is to try to understand the impact of labour policy on the processes involved in seeking personnel, with specific reference to business organizations. After examining the strategic, organisational and environmental variables that affect the personnel recruitment, the study focuses on analysing active and passive labour policies in Europe and Italy. The results that emerge highlight the fact that labour policy affects ce…

A Route to Grow Oxide Nanostructures Based on Metal Displacement Deposition: Lanthanides Oxy/Hydroxides Characterization

2012

A novel boundary element formulation for anisotropic fracture mechanics

2019

Abstract A novel boundary element formulation for two-dimensional fracture mechanics is presented in this work. The formulation is based on the derivation of a supplementary boundary integral equation to be used in combination with the classic displacement boundary integral equation to solve anisotropic fracture mechanics problems via a single-region approach. The formulation is built starting from the observation that the displacement field for an anisotropic domain can be represented as the superposition of a vector field, whose components satisfy a suitably defined anisotropic Laplace equation, and the gradient of the Airy stress function. The supplementary boundary integral equation is …

Robotic total knee arthroplastyThe accuracy of CT-based component placement

2004

Accurate alignment of the components in total knee arthroplasty is important. By use of postoperative CT controls, we studied the ability of a robotic effector to accurately place and align total knee arthroplasty (TKA) components according to a purely CT-based preoperative plan.Robotic TKA was performed in 13 patients (6 men) with primary gonarthrosis. Locator screws were placed into femur and tibia under spinal anesthesia. A CT-scan including the femoral head, knee and ankle was performed. In the preoperative planning software, virtual components were positioned into the CT volume. In a second operation, the robot milled femur and tibia with a high-speed milling tool according to the preo…

Metabolic parameters and adipokine profile during GH replacement therapy in children with GH deficiency

2007

Objective: GH replacement therapy in children with GH deficiency (GHD) mainly promotes linear growth. Not only have very few studies fully analyzed the metabolic consequences of GH therapy, but also the question as to whether GH may affect adipokine secretion has been insufficiently investigated. Our aim was to study the effects of GH replacement therapy on auxological data, lipid and glycemic profiles, insulin homeostasis (HOMA-IR) and serum adipokines in children. Methods: This was a 1-year prospective study. Thirty-four GHD children (11.6 ± 2.6 years) and thirty healthy matched controls were enrolled. Children affected by GHD were studied both before beginning continuous GH replacement t…