401 research outputs found
Porous Alumina Based Capacitive MEMS RH Sensor
The aim of a joint research and development project at the BME and HWU is to
produce a cheap, reliable, low-power and CMOS-MEMS process compatible
capacitive type relative humidity (RH) sensor that can be incorporated into a
state-of-the-art, wireless sensor network. In this paper we discuss the
preparation of our new capacitive structure based on post-CMOS MEMS processes
and the methods which were used to characterize the thin film porous alumina
sensing layer. The average sensitivity is approx. 15 pF/RH% which is more than
a magnitude higher than the values found in the literature. The sensor is
equipped with integrated resistive heating, which can be used for maintenance
to reduce drift, or for keeping the sensing layer at elevated temperature, as
an alternative method for temperature-dependence cancellation.Comment: Submitted on behalf of EDA Publishing Association
(http://irevues.inist.fr/handle/2042/16838
A study of refurbishment of listed buildings into a new facilities
This research is a study on the refurbishment of old building and heritage building in Malaysia. This research intends to highlight the existing practice on rehabilitation projects in Malaysia with the main focus on guidelines at rehabilitation work stages. Besides that, this research describes building restoration and the process of the renewal and refurbishment of the fabric of a building. The objectives of doing this research are to emphasize the importance of refurbishment in order to reserve an old and historical building without make big changes at the façade and structure of the buildings. This research also important in order to study on the space utilization for internal after the buildings have been refurbished and finally to determine various of commercial building that have been refurbished for a new facilities and find the most rapidly area with the preservation and conservation of buildings. The phase covers a wide span of activities, from the cleaning of the interior or exterior of a buildings Buildings are structures which have, from time to time, particular purposes. They require ongoing maintenance to prevent them falling into disrepair as a result of the ravages of time and use. Building restoration can be thought of as that set of activities which are greater than year-to-year maintenance. This research was held at Malacca, Batu Pahat and Muar. This is because; there is many old building and historical building that constructed during the British Colonial and others. The design gave an aesthetic value to the tourist. Based on this research, Malacca is the most rapid area with a refurbishment development because Malacca was awarded with World Heritage List by UNESCO. It is important for Malacca to maintain their historic and aesthetic value of the buildings. Batu Pahat was found the slowest region in refurbishment development
Integrating Neural Networks with a Quantum Simulator for State Reconstruction
We demonstrate quantum many-body state reconstruction from experimental data
generated by a programmable quantum simulator, by means of a neural network
model incorporating known experimental errors. Specifically, we extract
restricted Boltzmann machine (RBM) wavefunctions from data produced by a
Rydberg quantum simulator with eight and nine atoms in a single measurement
basis, and apply a novel regularization technique to mitigate the effects of
measurement errors in the training data. Reconstructions of modest complexity
are able to capture one- and two-body observables not accessible to
experimentalists, as well as more sophisticated observables such as the R\'enyi
mutual information. Our results open the door to integration of machine
learning architectures with intermediate-scale quantum hardware.Comment: 15 pages, 13 figure
A New Method for Measuring Neutron-skin Thickness by Exciting the Anti-analog Giant Dipole Resonance
A tüdőrák molekuláris diagnosztikája
Development of the target therapies of lung cancer was a rapid process which fundamentally changed the pathological diagnosis as well. Furthermore, molecular pathology became essential part of the routine diagnostics of lung cancer. These changes generated several practical problems and in underdeveloped countries or in those with reimbursement problems have been combined with further challenges. The central and eastern region of Europe are characterized by similar problems in this respect which promoted the foundation of NSCLC Working Group to provide up to date protocols or guidelines. This present paper is a summary of the molecular pathology and target therapy guidelines written with the notion that it has to be upgraded continuously according to the development of the field
A neutron spectrometer for studying giant resonances with (p,n) reactions in inverse kinematics
A neutron spectrometer, the European Low-Energy Neutron Spectrometer (ELENS), has been constructed to study exotic nuclei in inverse-kinematics experiments. The spectrometer, which consists of plastic scintillator bars, can be operated in the neutron energy range of 100 keV-10 MeV. The neutron energy is determined using the time-of-flight technique, while the position of the neutron detection is deduced from the time-difference information from photomultipliers attached to both ends of each bar. A novel wrapping method has been developed for the plastic scintillators. The array has a larger than 25% detection efficiency for neutrons of approximately 500 keV in kinetic energy and an angular resolution of less than 1 degrees. Details of the design, construction and experimental tests of the spectrometer will be presented. (C) 2013 Elsevier B.V. All rights reserved.</p
First identification of excited states in the T = 1/2 nucleus Pd
The first experimental information about excited states in the N = Z + 1 nucleus 93Pd is presented. The experiment was performed using a 205 MeV 58Ni beam from the Vivitron accelerator at IReS, Strasbourg, impinging on a bismuth-backed 40Ca target. Gamma-rays, neutrons and charged particles emitted in the reactions were detected using the Ge detector array Euroball, the Neutron Wall liquid-scintillator array and the Euclides Si charged-particle detector system. The experimental level scheme is compared with the results of new shell model calculations which predict a coupling scheme with aligned neutron-proton pairs to greatly influence the level structure of nuclei at low excitation energies
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OSL-dating of the Pleistocene-Holocene climatic transition in loess from China, Europe and North America, and evidence for accretionary pedogenesis
Loess deposits intercalated by paleosols are detailed terrestrial archives of Quaternary climate variability providing information on the global dust cycle and landscape dynamics. Their paleoclimatic significance is often explored by quantifying their mineral magnetic properties due to their sensitivity to local/regional hydroclimate variability. Detailed chronological assessment of such regional proxy records around the climatic transitions allow a better understanding of how regional records react to major global climatic transitions such as the Pleistocene-Holocene climatic transition.
Logs of high-resolution magnetic susceptibility and its frequency dependence were used as paleoclimatic proxies to define the environmental transition from the last glacial loess to the current interglacial soil as reflected in nine loess-paleosol sequences across the northern hemisphere, from the Chinese Loess Plateau, the southeastern European loess belt and the central Great Plains, USA. The onset of increase in magnetic susceptibility above typical loess values was used to assess the onset of, and developments during, the Pleistocene-Holocene climatic transition.
High-resolution luminescence dating was applied on multiple grain-sizes (4–11 μm, 63–90 μm, 90–125 μm) of quartz extracts from the same sample in order to investigate the timing of Pleistocene-Holocene climatic transition in the investigated sites.
The magnetic susceptibility signal shows a smooth and gradual increase for the majority of the sites from the typical low loess values to the interglacial ones. The initiation of this increase, interpreted as recording the initiation of the Pleistocene-Holocene climatic transition at each site, was dated to 14–17.5 ka or even earlier. Our chronological results highlight the need of combining paleoclimatic proxies (magnetic susceptibility) with absolute dating when investigating the Pleistocene-Holocene climatic transition as reflected by the evolution of this proxy in order to avoid chronostratigraphic misinterpretations in loess-paleosol records caused by simple pattern correlation.
The detailed luminescence chronologies evidence the continuity of eolian mineral dust accumulation regardless of glacial or interglacial global climatic regimes. Coupled with magnetic susceptibility records this indicates that dust sedimentation and pedogenesis act simultaneously and result in a non-negligible accretional component in the formation of Holocene soils in loess regions across the Northern Hemisphere. The luminescence ages allowed the modeling of accumulation rates for the Holocene soil which are similar for European, Chinese and U.S.A. loess sites investigated and vary from 2 cm ka−1 to 9 cm ka−1. While accretional pedogenesis has often been implicitly or explicitly assumed in paleoclimatic interpretation of loess-paleosol sequences, especially in the Chinese Loess Plateau, our luminescence data add direct evidence for ongoing sedimentation as interglacial soils formed
Predictors for pregnancy outcomes in Romanian women with Type 1 Diabetes Mellitus: a prospective study
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