bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VxCuxCe1 – 2xO2
Authors: Attipa Christothea , Theocharis Charis R. 
Published: August 2010

A co-precipitation method has been used to prepare ternary mixed oxides based on ceria with the general formula VxCuxCe1 – 2xO2, where x was varied between 0.05 and 0.45. The structural and surface properties as well as the morphologies of the solids were examined by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction studies, nitrogen adsorption isotherms, Fourier-transform infrared spectroscopy and scanning electron microscopy. For samples where the vanadium and copper content was low (x ≤ 0.3), the surface area increased and the pore distribution shifted towards the micropore range. The sample V0.05Cu0.05Ce0.9O2 exhibited the highest surface area and the sample V0.45Cu0.45Ce0.1O2 the smallest. The samples were calcined within the temperature range 473–1073 K. When the vanadium content was increased to x ≥ 0.3 and the calcination temperature set at 673 K, a phase with composition CeVO4 was detected via X-ray diffractometry, in addition to a V2O5 and a CeO2 phase. The FT-IR spectra confirmed the above results.
Preliminary Design of a Floating Wind Turbine Support Structure and Relevant System Cost Assessment
Authors: Casale C. , Lembo E. , Serri L. , Viani S. 
Published: August 2010

This paper describes the preliminary design of a floating support structure for offshore wind turbines that has been developed by ERSE (former CESI RICERCA). It considered the prospects that this kind of structure could hold for exploiting wind resources in the windiest sea areas along the coasts of Italy (Sardinia, Sicily, Apulia). A review of the various types of floating structure that have been devised worldwide for wind turbines has made it possible to single out the floating structure that looks most interesting from the technical and economic standpoint. Specifically, the selected structure is of the Tension Leg Platform (TLP) type. It consists of a nearly fully submerged hexagonal platform, which carries a 6 MW wind turbine and is linked to the sea bottom by 6 ties, which assure stability and limited tilting, even under the worst loads induced by wind and sea. The construction and installation phases for this structure have been analysed, and the most effective and economically viable techniques chosen. With a view for avoiding the use of expensive sea craft, the floating structure has been designed in such a way that it can be towed to its site with the wind turbine already standing on it. A preliminary dimensioning of the floating structure has been carried out, along with technical verification of the main structural members. This work has been performed in cooperation with the engineering company TECON, which used, among others, the MOSES computation code by Ultramarine. Attention has also been devoted to the most suitable options for mooring the floating structure to the sea bottom. To assess the behaviour of the floating system under the action of wind and waves, the computational code (BM) has been developed by ERSE. This code takes into account the whole “wind turbine + floating platform” system, represented by a scheme featuring 8 degrees of freedom. Using this code no anomalous or unexpected behaviours were observed. The costs of building and installing this floating system have been calculated, drawing on experience gained with similar offshore structures in the oil and gas fields. The unique conditions of Italy as regards shipyards, harbours, electrical grid layout etc. have been taken into account. Along with estimates of operation and maintenance costs, and annual energy yields, these results have allowed the calculation of the probable unit energy production costs of floating wind farms in deep-water coastal areas of Italy.
Intelligent Tools for Wind Resource Correlation
Authors: Butler David A 
Published: August 2010

The use of linear correlation techniques to extend monitoring mast records is an important step in developing the energy estimates that underpin wind development business cases. Yet accuracy of the linear correlation technique rapidly degrades in complex conditions, and only allows correlation of a small number of parameters without introducing overwhelming model complexity. This paper argues that artificial neural network (ANN) models offer an alternative that is simple to use, afford greater correlation options and provide improved data extension accuracy. This was explored through a practical data extension example, with the linear and ANN correlation performances directly compared. The case study showed that the ANN correlation method provided superior accuracy compared to the linear correlation method, including a three fold improvement in Annual Energy Prediction (AEP) error.
Is Noise Exposure in Non-Industrial Work Environments Associated with Increased Sickness Absence?
Authors: Kristiansen Jesper 
Published: August 2010

Noise in non-industrial workplaces is an increasing problem. Annoyance and complaints over noise are frequently reported in these workplaces, whereas the risk of hearing damage is usually not the major concern. An important question arises for this type of noise of low to moderate intensity; that is, if it could be a cause of increased sickness absence, for example, via a mechanism starting with job dissatisfaction or via health problems caused by the noise exposure. This paper discusses this question starting from epidemiological studies on sickness absence, and supplemented with field and laboratory studies that address intermediate steps on the path to sickness absence, such as job dissatisfaction, symptoms, and physiological stress reactions. Only 3 epidemiological studies have investigated the effect of occupational noise on sickness absence. In the one study most pertinent to the question raised above, noise was associated with increased sickness absence in women holding jobs with complex work tasks. No firm conclusions can be made based on the studies that have illuminated possible intermediate steps to sickness absence. One reason is the wide variety of scopes and contexts addressed in these studies; the workplace exposures that have been investigated spans noise in schools, open-plan offices, hospitals and noise from ventilation systems, etc. Another reason is the presence of major weaknesses in many of the studies, such as confounding effects and problematic exposure assessments. It is concluded that based on the level of the current evidence an association between occupational noise exposure of low to moderate level and sickness absence is possible, but to settle the question more high quality studies are needed.
On Checking the Rising Global Food Prices Due to Bio-Fuels Using Solar Energy
Authors: Sharan Anand M. 
Published: August 2010

This paper deals with the pressing current global problem of the sudden price rise in food grains all over the world which is unprecedented. This has mainly arisen from use of food crops such as corn, sugar cane etc as bio-fuels. This paper suggests use of solar energy which is not only widely abundant, it also does not cause global warming, a harmful effect due to the combustion of fuels whether bio-fuels or fossil. This paper also suggests use of other forms of vehicles which are far more economical to use. In addition, this paper shows results of an efficient process of conversion of solar energy into useful forms; this process is the solar tracking process. If used world wide, one would obtain about 36% more energy whose cost is touching the sky these days.
Numerical Modelling of Wind-Waves -Problems and Results
Authors: Polnikov V. G. 
Published: August 2010

Stochastic wind sea is an intermediate small-scale physical process responsible for the state of the atmospheric boundary layer and the water upper layer, having dynamics of all scales. To describe behavior of this system, one could use the mathematical formalization based on a spectral evolution model for wind-waves. To this end, it needs a well-designed numerical model derived from the principal physical equations. On this way certain theoretical problems take place. At present some of these problems are solved, that gives possibility to construct a lot of numerical wind-wave models, the latest version of which was proposed in Polnikov (2005). With the aim of assessing real merits of the new source function proposed in the mentioned paper, the latter was tested and validated by means of modification of the well known model WAVEWATCH-III. Assessment was done on the basis of comparing the wave simulation results obtained by both models for a given wind field against the buoy data gotten in the three oceanic regions. Estimation of simulation accuracy was obtained for three wind-wave parameters: significant wave height, Hs, peak wave period, Tp, and mean wave period, Tm. Comparison of these estimations between the original and modified model WAVEWATCH was fulfilled and analyzed. Advantage of the modified model was revealed, consisting in an increase of simulation accuracy for Hs in 1.2–1.5 times for more than 70% of buoys considered. Additionally, it was found that the speed of calculation was increased by 15%.
Discrepancies in International Normalized Ratio Results between Instruments: A Model to Split the Variation into Subcomponents
Authors: Sølvik Una Ø , Petersen Per H , Monsen Grete , Stavelin Anne V , Sandberg Sverre 
Published: August 2010

BACKGROUND
Observed differences between results obtained from comparison of instruments used to measure international normalized ratio (INR) have been higher than expected from the imprecision of the instruments. In this study the variation of these differences was divided into subcomponents, and each of the subcomponents was estimated.

METHODS
Blood samples were collected at 4 different patient visits from each of 36 outpatients who were receiving warfarin treatment and were included in the study. INR was determined on 1 laboratory instrument (STA Compact®) and 3 point-of-care instruments (Simple Simon®PT, CoaguChek®XS, and INRatio™). All 4 INR instruments were compared in pairs. Linear regression was used to correct for systematic deviations. The remaining variation of the differences was subdivided into between-subject, within-subject, and analytical variation in an ANOVA nested design.

RESULTS
The mean difference between instruments varied between 1.0% and 14.3%. Between-subject variation of the differences (expressed as CV) varied between 3.3% and 7.4%, whereas within-subject variation of the differences was approximately 5% for all 6 comparisons. The analytical imprecision of the differences varied between 3.8% and 8.6%.

CONCLUSIONS
The differences in INR between instruments were subdivided into calibration differences, between- and within-subject variation, and analytical imprecision. The magnitude of each subcomponent was estimated. Within results for individual patients the difference in INR between 2 instruments varied over time. The reasons for the between- and within-subject variations of the differences can probably be ascribed to different patient-specific effects in the patient plasma. To minimize this variation in a monitoring situation, each site and patient should use results from only 1 type of instrument.
Detection of Exaggerated Blood Pressure Response Using Laboratory of Physical Science Protocol and Risk of Future Hypertension
Authors: Odahara Tsutomu , Irokawa Masataka , Karasawa Hiroshi , Matsuda Shinya 
Published: August 2010

Detection of Exaggerated Blood Pressure Response Using Laboratory of Physical Science Protocol and Risk of Future Hypertension: Tsutomu Odahara, et al. Kagoshima Occupational Environmental Health CenterObjectiveTo assess the usefulness of the Laboratory of Physical Science (LOPS) protocol for detecting exaggerated blood pressure (BP) response as a risk factor for future hypertension when controlling for work and personal factors.MethodsSubjects were 815 healthy normotensive men (mean age, 43.1 ± 6.76 yr; range, 29–64 yr) who participated in the LOPS protocol, a graded 4‐stage exercise test undertaken for the measurement of 40–70% of maximum oxygen consumption. A hypertensive response was defined as systolic blood pressure (SBP) of 250 mmHg or diastolic blood pressure (DBP) of 120 mmHg during the exercise test.ResultsNew‐onset hypertension or the initiation of antihypertensive drug treatment had occurred in 108 men (13.3%) after 7 yr of follow‐up. Cox proportional survival analysis revealed significantly increased risks of developing hypertension were associated with exaggerated BP response to exercise (hazard ratio, 2.3; 95% confidence interval, 1.4–3.7) and higher frequency of business trips (hazard ratio, 1.7; 95% confidence interval, 1.2–2.5) after multivariable adjustments for work and personal‐related risk factors.ConclusionsThese results suggest that the LOPS protocol is effective for detecting exaggerated BP response as a risk factor for future hypertension when controlling for work and personal‐related risk factors. Exaggerated BP response to exercise and higher frequency of business trips are risk factors for developing future hypertension.
Interactions of Dietary Whole-Grain Intake With Fasting Glucose– and Insulin-Related Genetic Loci in Individuals of European Descent
Authors: Nettleton Jennifer A. , McKeown Nicola M. , Kanoni Stavroula , Lemaitre Rozenn N. , Hivert Marie-France , Ngwa Julius , van Rooij Frank J.A. , Sonestedt Emily , Wojczynski Mary K. , Ye Zheng , Tanaka Tosh ,   the CHARGE Whole Grain Foods Study Group
Published: August 2010

OBJECTIVE
Whole-grain foods are touted for multiple health benefits, including enhancing insulin sensitivity and reducing type 2 diabetes risk. Recent genome-wide association studies (GWAS) have identified several single nucleotide polymorphisms (SNPs) associated with fasting glucose and insulin concentrations in individuals free of diabetes. We tested the hypothesis that whole-grain food intake and genetic variation interact to influence concentrations of fasting glucose and insulin.

RESEARCH DESIGN AND METHODS
Via meta-analysis of data from 14 cohorts comprising ∼48,000 participants of European descent, we studied interactions of whole-grain intake with loci previously associated in GWAS with fasting glucose (16 loci) and/or insulin (2 loci) concentrations. For tests of interaction, we considered a P value &lt;0.0028 (0.05 of 18 tests) as statistically significant.

RESULTS
Greater whole-grain food intake was associated with lower fasting glucose and insulin concentrations independent of demographics, other dietary and lifestyle factors, and BMI (β [95% CI] per 1-serving-greater whole-grain intake: −0.009 mmol/l glucose [−0.013 to −0.005], P &lt; 0.0001 and −0.011 pmol/l [ln] insulin [−0.015 to −0.007], P = 0.0003). No interactions met our multiple testing–adjusted statistical significance threshold. The strongest SNP interaction with whole-grain intake was rs780094 (GCKR) for fasting insulin (P = 0.006), where greater whole-grain intake was associated with a smaller reduction in fasting insulin concentrations in those with the insulin-raising allele.

CONCLUSIONS
Our results support the favorable association of whole-grain intake with fasting glucose and insulin and suggest a potential interaction between variation in GCKR and whole-grain intake in influencing fasting insulin concentrations.
Statistical Verification of Experimental Tests to Determine Geographical Positions of Objects
Authors: Kowalski Mirosław , Sulkowski Jarosław 
Published: August 2010

Statistical Verification of Experimental Tests to Determine Geographical Positions of Objects
The article describes statistical methods of verification of measurements taken to determine geographical position of a single soldier on a battlefield using the latest GPS satellite techniques. The GPS system allows of considerable improvement in effectiveness of military operations owing to its capabilities to provide precise location of either the whole organizational unit or a single soldier, and precise time. What has been gained from experimental tests are sets of tables with, among other elements, geographic coordinates to express location (longitude and latitude), and altitude.
Probabilistic Safety Analysis of the Nuclear Power Plants in Slovakia
Authors: Králik Juraj 
Published: August 2010

Probabilistic Safety Analysis of the Nuclear Power Plants in Slovakia
This paper gives the results of the safety analysis of the nuclear power plants in Slovakia. The probabilistic assessment of NPP concrete containment and technologically steel segment penetration for Probabilistic Safety Analysis (PSA) level 2 of VVER 440/213 in the case of seismic and LOCA accident is presented. There is showed summary of calculation models and calculation methods for the probability analysis of the structural integrity considering load, material and model uncertainties. The numerical simulations on the base of LHS method were realized in the system ANSYS and FReET. Copyright©2010 Preprint of KONBiN
Examination of Operational Dependability Demonstrated by Turbine Reactive Engines
Authors: Lindstedt Paweł , Golak Karol 
Published: August 2010

Examination of Operational Dependability Demonstrated by Turbine Reactive Engines
The paper presents course and results of operational examination carried out for engines with particular consideration of land-based tests. It has been suggested that available, already recorded signals from the automatic and control systems can serve as a basis for assessment of the engine operability. The recorded signals can be analyzed in various manners, including the method that is based on the phase trajectory superposed with the Lyapunov function. It has been shown that analysis of signal interrelations presents substantial advantages, where the movement of the phase trajectory vector over the time period is subject to analysis and is related to successive values of the Lyapunov function that is calculated for subsequent moments of time (possibility to analyze both linear and non-linear systems, simultaneous analysis of three signals: operational, environment and feed), therefore the proposed method prevails over other approaches to analysis of signals. The final part of the paper deals with analysis of signals obtained from recorded waveforms from the automation and control systems of the K-15 engine.
A Synthetic Method to Investigate Reliability and Safety Potential of a Technical Facility During its Operation
Authors: Lindstedt Paweł , Grądzki Rafał 
Published: August 2010

A Synthetic Method to Investigate Reliability and Safety Potential of a Technical Facility During its Operation
The paper presents presumptions to an innovative way intended to bring down each diagnostic information, even if it has been provided with participation of an expert, to the form that can be expressed in a conventional manner by the corresponding score of points. Each change of the signal (depending on its value and the moment when it appears) is associated with the score that has been already established by experts. The proposed innovative method consists in utilization of the obtained signals to find out parameters of the current settings and the technical status (equations 3, 4) and the safety and reliability of the object (equations 5, 6) with application of the combined status equations [3,5]. It will enable to perform continuous monitoring and prediction of the reliability and safety of the facility during its lifetime. The described method may prove to be extremely useful as it exhibits the overall deterioration of the facility in an unambiguous and synthetic manner and makes it possible to predict future operation status of the facility and, in consequence, to schedule appropriate maintenance operations (adjustments, repairs, overhauls).
Social Indices in Risks Estimations of Financial Crisis: Case of Transition Economies
Authors: Olena Osinkina , Tamara Podvysotskaya 
Published: August 2010

Social Indices in Risks Estimations of Financial Crisis: Case of Transition Economies
The main purpose of our research is to investigate the empirical evidence of global financial crises influence on social sector development. A specific question guiding the research was to find the most vulnerable aspects of social sector in transition economies countries and construct a complex social indicator which would allow to estimate the dynamics of social sector development in pre-crises period and determine the appropriate policy measures to minimize the negative consequences in period of after-crises recovering.
As we do not have an extended data for the period after crises, for now we are not able to do any credible conclusions for the post-crises development of different aspects of social sector, but we can do cross-country comparison.
Diagnostic Tools for Electronic Integrated Communication Systems in Air Transportation Systems
Authors: Pazur Andrzej , Michalak Sławomir , Szelmanowski Andrzej 
Published: August 2010

Diagnostic Tools for Electronic Integrated Communication Systems in Air Transportation Systems
The paper has been intended to present research/testing tools used in the Air Force Institute of Technology to build integrated communication systems and test operation thereof, as far as both devices that compose the system and the applied software are concerned. Particular attention has been paid to the so-called integration station (built under the Mi-8, Mi-17, Mi-24 modernisation project), intended to activate communication systems integrated on the basis of digital data buses (MIL-1553B). Also, the mobile servicing and control set ZDZSŁ-1 to service and diagnose these systems has been discussed in details. Such equipment has allowed AFIT to gain the-state-of-the-art capabilities presented by western companies in the field of integrating new communication devices/systems, the already accomplished modernisation of the W-3PL helicopter ("Głuszec"/"Capercaillie") and a project of such a system for the TS-11F "Iskra" ("Spark") being perfect examples. Some selected tasks performed with this testing station engaged have been discussed. Also, problems arising while activating and testing the developed software to integrate communication devices/systems (including digitally controlled radio stations of the RF-5800H and XM-6013P types, and communication control panels of the PSŁ-1 type have been given consideration in the scope of the software functionality and reliability. Presented are also additional monitoring and measuring systems used to test this software, just to mention acoustic generators as well as special and navigation signals testers.