148 research outputs found
Vessel charter rate estimation for offshore wind O&M activities
No full textEstimating the cost of vessels is an important factor for the operation & maintenance (O&M) costs of offshore wind farms. Accurate cost estimation is required during operation of the wind farm. This paper presents the development of the O&M charter rate modelling for offshore wind turbine jack-up vessels under different op-erational strategies. The main objectives of this modelling are to explore the differentiation of charter rates as-sociated with the charter periods and with the capabilities of different vessels; as well as to allow offshore wind farm operators to plan their maintenance strategies through considering the share of vessels’ costs in the overall maintenance costs. In this respect, various jack-up vessels in the offshore wind industry are investigat-ed and the most effective charter periods are identified. The seasonal effects on the charter rates are also con-sidered to provide critical insight into the selection of the optimum charter rate scenario
Enabling Body-Centric Computing Applications with LED-to-Camera Communication
No full textAdvances in Visible Light Communication are enabling novel Internet of Things applications. Going forward, we expect that LED-to-Camera links will enable a wide range of body-centric computing applications. Up until now, most LED-to-Camera studies have been following a deploy-and-test approach instead of a principled methodology. This ad-hoc design raises up two problems. First, we cannot compare fairly the various methods proposed in the literature because they use different types of LEDs and cameras. Second, and perhaps more importantly, we cannot identify the fundamental opportunities and limits of these novel links. To overcome these challenges, we propose a simple analytical model that estimates the range and data rate of LED-to-camera links prior to deployment. The model is built from first principles and requires only a limited set of parameters. To validate the accuracy of our model, we consider the two main transmission modes used in the literature: binary transmission and communication based on the rolling shutter effect. Our experimental evaluation confirms the predictions of the analytical model. Embedded System
Gestión y Procesos de exporta fácil en la empresa pública de SERPOST S.A. en el distrito de los Olivos, 2015
No full textLa presente investigación tuvo como objetivo determinar la relación entre Gestión y Procesos de exporta fácil en la empresa pública de SERPOST S.A. en el distrito de los Olivos, 2015, para el desarrollo de la tesis se utilizó la Teoría de procesos administrativos y la teoría del caos en la gestión de procesos para las variables gestión y proceso de exporta fácil, respectivamente. El tipo de investigación fue de tipo descriptivo correlacional, aplicada mediante el tipo de diseño no experimental, tipo transeccional. La población estuvo conformada por
35 trabajadores del centro postal de la empresa SERPOST S.A de los cuales se tomó una muestra de 30 de acuerdo a la fórmula de Krejcie & Morgan. La técnica utilizada para el recojo de los datos fue la encuesta, para cual se utilizó un cuestionario certificado mediante un juicio de expertos y una prueba piloto. Para el proceso de los datos, se ingresó los datos a una hoja de cálculo para luego importarlo al programa SPSS, y así efectuar la estadística descriptiva, el contraste de hipótesis y las correlaciones. Los resultados obtenidos fueron que una buena gestión , genera un buen proceso de exporta fácil ; sin embargo, según la prueba de chi – cuadrado se concluyó que no existe relación entre gestión y proceso de exporta fácil de la empresa pública de SERPOST S.A. en el distrito de los Olivos,
2015, pero, entre estas variables, existe una correlación relativamente débil e inversa
Liderazgo, clima y compromiso organizacional para generar bienestar laboral en una empresa Courier, Los Olivos, Lima – 2025
No full textLa presente investigación tuvo como objetivo identificar de qué manera el liderazgo, el
clima y el compromiso organizacional generan bienestar laboral en una empresa Courier
ubicada en Los Olivos, Lima, durante el año 2024. El estudio fue de tipo básico, con un
enfoque explicativo, empleando un método cuantitativo y un diseño no experimental. La
población considerada estuvo conformada por 110 colaboradores de la empresa Courier
del distrito de Los Olivos. La muestra fue probabilística aleatoria y estuvo compuesta
por 86 colaboradores. La técnica empleada para la recolección de datos fue la encuesta,
utilizando un cuestionario como instrumento. Los resultados indicaron que el liderazgo,
el clima organizacional y el compromiso organizacional generan mayores niveles de
bienestar laboral en la empresa, lo cual se sustentó en los valores de significancia, los
cuales fueron menores a 0.05. Entre los principales hallazgos, se observa que el 52% de
los colaboradores presentan un liderazgo medio, el 50% percibe un clima organizacional
regular, el 52% muestra un compromiso organizacional de nivel medio, y el 49%
experimenta un bienestar laboral medio, debido a que no se fomenta la participación
activa en la mejora de procesos ni existen suficientes oportunidades de formación y promociónTesi
Impact of ICTs on event management and marketing Advances in marketing, customer relationship management, and e-services (AMCRMES) book series./ [edited by] Kemal Birdir, Sevda Birdir, Ali Dalgic, Derya Toksoz.
No full textIncludes bibliographical references and index."This book explores the impact of new information and communications technologies on event management and marketing"--Marketing events in a digital era, opportunities and challenges / Gökhan Akel -- The role of ICTs for effective marketing activities in event tourism / Mozlem Sen -- Information and communication technology for even management / Fatma Doganay Ergen -- The impact of ICT on strategic event management / Gaye Onan -- Virtual reality for better event planning and management / Alana Thomson, Ingrid Proud, Andrew Goldston, Rebecca Dodds-Gorman -- Black Friday as a shopping even t: motivational tendency of Y Generation consumers in digital environment / Dilaysu Cinar -- Website usage in event marketing / Gonca Davras -- New trends in event marketing / Remziye Ekici, Derya Toksoz -- Marketing innovationsin industry 4.0 and their impacts on events Mmrketing / Misra Çakaloglu -- Importance of ICT in human resources management and evaluation in terms of events / Pinar Uçar.1 online resource (xx, 357 pages)
The Rationality of Resectional Surgery and Palliative Interventions in the Management of Patients with Gallbladder Cancer
No full textThe aim of the present study was to evaluate in a retrospective manner, the survival period and survival rate according to stages and groups after R0, R1, R2 resections and palliative interventions. Between 2003 and 2012, 67 patients diagnosed with gallbladder carcinoma were retrospectively analyzed. Patient demographics, the survival period, and survival rate according to stages and groups after R0, R1, R2 resections and palliative interventions were retrospectively analyzed. Sixty-seven patients were diagnosed with gallbladder carcinoma. Thirty-eight patients (56.7%) were female and 29 patients (43.3%) were male. The median survival period was significantly longer in stage II and III diseases than in stage IV disease (P < 0.001). The R0, R1, and R2 resection rates in patients who underwent surgery with curative intent were 67.7, 19.4, and 12.9 per cent, respectively. The R0 resection rate according to the tumor stages was 100 per cent for stage I, 87.5 per cent for stage II, 66.7 per cent for stage III, and 42.8 per cent for stage IV disease. The median follow-up period was six months (eight days to 36 months). During this follow-up period, 53 patients (79.1%) died. In conclusion, R0 resection rate decreases when tumor stage increases. The highest survival rates after R0 resection are achieved in patients with stage I, II, and III diseases. Radical surgery has no benefit over palliative surgery for stage IV disease in terms of survival
Effective interatomic pair potentials for liquid silver-tin alloys
No full text6th International Conference of the Balkan-Physical-Union -- AUG 22-26, 2006 -- Istanbul, TURKEYThe transferability of the local evanescent core (EC) pseudopotential to liquid AgSn binary alloys have been tested. The effective interatomic pair potentials derived from the evanescent core electron-ion potential which was constructed by Nogueira and co-workers have been calculated using the second order perturbation theory. The structural properties of liquid Ag-Sn alloys at different compositions of tin have obtained using the Variational Modified Hypernetted Chain (VMHNC) integral equation theory of liquids. The results for the partial structure factors and total structure factors near their melting have been compared with experimental data. The computed structural characteristics exhibit the correct trends with experiment. It has been shown the ability of the universal density dependent version of the EC potential to be used in the case of liquid Ag-Sn simple metals and metal alloys. The charge transferred between atoms have also been investigated.Balkan Phys Union,Turkish Phys Soc,Istanbul Univ,Yildiz Tech Univ,Bogaz Univ,Dogus Univ,European Phys Soc,Govt Istanbul,Istanbul Metropolitan Municipal,Turkish Atomic Energy Author,Sci & Technol Res Council Turkey,United Natl Educ Sci & Cultutal Org,NEL Electroni
Successful treatment of multidrug-resistant Acinetobacter baumanii ventriculitis with intravenous and intraventricular colistin
No full textManagement of multidrug-resistant Acinetobacter baumannii (MDRAB) meningitis/ventriculitis is a difficult therapeutic problem owing to the limited penetration of antibiotics into cerebrospinal fluid (CSF). A 2-month-old girl with ventriculitis caused by MDRAB is reported. Despite therapy with intravenous (IV) colistin ventricular fluid, cultures remained positive for MDRAB. Institution of combination therapy with IV and intraventricular colistin resulted in a successful clinical and microbiological outcome. Intraventricular/intrathecal and IV colistin might be the best therapeutic option in the treatment of central nervous system infection caused by MDRAB. Further studies are required to evaluate pharmacokinetic and pharmacodynamic parameters of combined IV and intraventricular/intrathecal colistin administration, especially in children
Ertapenem for the treatment of urinary tract infections caused by extended-spectrum beta-lactamase-producing bacteria in children
No full textBackground: Urinary tract infections (UTIs) are a problem frequently encountered by paediatric healthcare providers. Recent data suggest that extended-spectrum beta-lactamase (ESBL)-producing bacteria are an emerging cause of UTIs in non-hospitalized patients. We report our experience of ertapenem use in 50 patients with complicated UTIs, mainly pyelonephritis, caused by ESBL-producing organisms. Methods: Fifty patients aged < 16 y who had a complicated UTI caused by ESBL-producing organisms and who were treated with ertapenem at our hospital from 1 January 2009 to 31 December 2009, were included in the study. Results: There were 20 (40%) males and 30 (60%) females with a mean +/- standard deviation age of 38.6 +/- 36.9 months (range 6-156 months). Twenty-eight patients had no urological abnormality. In 40 patients ertapenem was initiated after results of microbiological cultures became available. Ertapenem was initiated empirically for 10 patients known to be colonized with ESBL-producing bacteria. Urine cultures were negative at 3.3 +/- 0.7 days (range 2-5 days) after starting ertapenem treatment. The mean duration of ertapenem treatment was 7.8 +/- 1.2 days (range 7-14 days). No laboratory or clinical side effects were observed. Conclusions: Ertapenem is promising for the culture-guided treatment of ESBL-producing Gram-negative complicated UTIs. Well-designed prospective studies are needed to define the role of ertapenem in treating complicated paediatric UTIs, especially upper UTIs
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