bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving flow forecasting by error correction modelling in altered catchment conditions
Authors: Pianosi Francesca , Castelletti Andrea , Mancusi Leonardo , Garofalo Elisabetta 
Published: March 2013

AbstractDespite human is an increasingly significant component of the hydrologic cycle in many river basins, most hydrologic models are still developed to accurately reproduce the natural processes and ignore the effect of human activities on the watershed response. This results in non‐stationary model forecast errors and poor predicting performance every time these models are used in non‐pristine watersheds. In the last decade, the representation of human activities in hydrological models has been extensively studied. However, mathematical models integrating the human and the natural dimension are not very common in hydrological applications and nearly unknown in the day‐to‐day practice. In this paper, we propose a new simple data‐driven flow forecast correction method that can be used to simultaneously tackle forecast errors from structural, parameter and input uncertainty, and errors that arise from neglecting human‐induced alterations in conceptual rainfall–runoff models. The correction system is composed of two layers: (i) a classification system that, based on the current flow condition, detects whether the source of error is natural or human induced and (ii) a set of error correction models that are alternatively activated, each tailored to the specific source of errors. As a case study, we consider the highly anthropized Aniene river basin in Italy, where a flow forecasting system is being established to support the operation of a hydropower dam. Results show that, even by using very basic methods, namely if‐then classification rules and linear correction models, the proposed methodology considerably improves the forecasting capability of the original hydrological model. Copyright © 2013 John Wiley & Sons, Ltd.
Delineating coastal groundwater discharge processes in a wetland area by means of electrical resistivity imaging, 224Ra and 222Rn
Authors: Zarroca Mario , Linares Rogelio , Rodellas Valentí , Garcia‐Orellana Jordi , Roqué Carles , Bach Joan , Masqué Pere 
Published: March 2013

AbstractCoastal groundwater discharge (CGD) plays an important role in coastal hydrogeological systems as they are a water resource that needs to be managed, particularly in wetland areas. Despite its importance, identifying and monitoring CGD often presents physical and logistical constraints, restraining the application of more traditional submarine groundwater discharge surveying techniques. Here we investigate the capability of electrical resistivity imaging (ERI) in the Peníscola wetland (Mediterranean coast, Spain). ERI surveying made it possible to identify and delineate an ascending regional groundwater flow of thermal and Ra‐enriched groundwater converging with local flows and seawater intrusion. The continuous inputs of Ra‐rich groundwater have induced high activities of Ra isotopes and 222Rn into the marsh area, becoming among the highest previously reported in wetlands and coastal lagoons. Geoelectrical imaging enabled inferring focused upward discharging areas, leaking from the aquifer roof through a confining unit and culminating as spring pools nourishing the wetland system. Forward modelling over idealized subsurface configurations, borehole datasets, potentiometric records from standpipe piezometers, petrophysical analysis, and four natural and independent tracers (224Ra, 222Rn, temperature and salinity) permitted assessing the geoelectrical model and a derived hydrogeological pattern. The research highlights the potential of ERI to improve hydrogeological characterization of subsurface processes in complex contexts, with different converging flows. Additionally, a hydrogeological conceptual model for a groundwater‐fed coastal wetland was proposed, based on the integration of surveying datasets. Copyright © 2013 John Wiley & Sons, Ltd.
Proposal to Formulate “Global Informal Workout Rules” Adopting “Asian Bankers' Association Informal Workout Guidelines” and “Model Agreement to Promote Company Restructuring by Informal Workout” with Some Minor Amendments
Authors: Takagi Shinjiro 
Published: February 2013

AbstractThe INSOL 8 Principles is a set of model domestic rules for out‐of‐court workouts. Many Asian countries have created workout rules referring to the Principles. A uniform insolvency code applicable worldwide may be impossible to achieve. Instead, international professional associations such as the INSOL International and/or official international organizations such as the World Bank may be able to establish global informal workout rules that are applicable in cases to restructure multinational business enterprises that are indebted to multinational financial creditors. The “Asian Bankers' Association Informal Workout Guidelines” and the “Model Agreement to Promote Company Restructuring by Informal Workout” of 2005 are buried treasure tools. They could be transformed to global rules with some minor amendments with the consent of the Association. Copyright © 2013 INSOL International and John Wiley & Sons, Ltd
Dual‐wavelength excitation for fluorescence‐based quantification of zinc protoporphyrin IX and protoporphyrin IX in whole blood
Authors: Hennig Georg , Gruber Christian , Vogeser Michael , Stepp Herbert , Dittmar Stephan , Sroka Ronald , Brittenham Gary M. 
Published: March 2013

AbstractQuantification of erythrocyte zinc protoporphyrin IX (ZnPP) and protoporphyrin IX (PPIX), individually or jointly, is useful for the diagnostic evaluation of iron deficiency, iron‐restricted erythropoiesis, lead exposure, and porphyrias. A method for simultaneous quantification of ZnPP and PPIX in unwashed blood samples is described, using dual‐wavelength excitation to effectively eliminate background fluorescence from other blood constituents. In blood samples from 35 subjects, the results of the dual‐wavelength excitation method and a reference high performance liquid chromatography (HPLC) assay were closely correlated both for ZnPP (rs = 0.943, p < 0.0001; range 37–689 μmol ZnPP/mol heme, 84–1238 nmol/L) and for PPIX (rs = 0.959, p < 0.0001; range 42–4212 μmol PPIX/mol heme, 93–5394 nmol/L). In addition, for ZnPP, the proposed method is compared with conventional single‐wavelength excitation and with commercial front‐face fluorimetry of washed erythrocytes and whole blood. We hypothesize that dual‐wavelength excitation fluorimetry will provide a new approach to the suppression of background fluorescence in blood and tissue measurements of ZnPP and PPIX. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Impact of the frequency response fluctuations of the multimode fiber on the OFDM transmission
Authors: Maksymiuk Lukasz , Wisnicki Bartosz 
Published: February 2013

AbstractDescribed is an analysis of the frequency response fluctuations of the multimode fiber impact on the Orthogonal frequency division multiplexing (OFDM) transmission. There is provided theory, numerical calculations and measurements. We analyze extreme and moderate frequency response fluctuation cases. Orthogonal frequency division multiplexing transmission is possible even in pass band when the spatial light filtration is moderate. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:845–849, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27402
Terahertz‐wave absorber based on metamaterial
Authors: Jiu‐Sheng Li 
Published: February 2013

AbstractWe theoretically and numerically study the absorption effect of a metamaterial absorber in the terahertz region.An equivalent circuit model is proposed to estimate the absorption characteristics of the metamaterial structures for terahertz wave normally incident on the structure. Theoretical and experimental results show that the absorber has nearly perfect absorption bandwidth of 53.3 GHz and an absorption peak (0.992) at the frequency of 0.734 THz. The good agreement between the measurement results and simulated prediction is observed. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:793–796, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27405
Reliable em‐driven microwave design optimization using manifold mapping and adjoint sensitivity
Authors: Koziel Slawomir , Leifsson Leifur , Ogurtsov Stanislav 
Published: February 2013

AbstractA robust and reliable algorithm for computationally efficient design optimization of microwave structures evaluated with electromagnetic (EM) simulations is introduced. The presented approach utilizes a low‐fidelity model constructed from coarse‐discretization EM simulation of the structure under consideration, as well as cheap derivative information obtained by means of adjoint sensitivity. Adjoint sensitivity is exploited to reduce the misalignment between the low‐ and high‐fidelity models through input space mapping, to construct a first‐order consistent surrogate model through manifold mapping, and to optimize the surrogate through a trust‐region‐based algorithm. This comprehensive use of adjoint sensitivity results in a very low design cost and excellent convergence capability of the proposed algorithm. Efficiency of our approach is demonstrated using two examples: an ultra‐wideband antenna and a microstrip bandpass filter. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:809–813, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27430
CPW‐FED slot antenna for personal mobile communication service (PCS) and bluetooth applications
Authors: Ojaroudi Nasser , Ojaroudi Mohammad 
Published: February 2013

AbstractA novel design of dual band CPW‐fed slot for personal communication service (PCS) and Bluetooth applications is presented in this article.The proposed antenna is designed to operate at 1.8 GHz, 2.4 GHz, and it is fabricated on the FR4 substrate. In this structure, by cutting a pair of G‐shaped slits in the ground plane we can gave a new resonance at lower frequencies for PCS in handy terminal, which operating at 1.77∼1.88 GHz band, also by embedding a pair of E‐shaped slits at radiating stub, the presented antenna can be created and achieves good dual‐band operation. The measured impedance bandwidth for l0 dB return loss is from 1.73 to 1.84 GHz and 2.33 to 2.45 GHz, covering the 1.8/2.4 GHz for PCS/Bluetooth applications. Simulated and experimental results obtained for this antenna show that the proposed slot antenna has a good antenna gains and radiation behavior within the 1.8/2.4 GHz frequencies. The designed antenna has a small size of 30 × 30 × 0.8 mm3. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:734–737, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27432
Design and implementation of a wideband top loop loaded monopole antenna for mobile handset
Authors: Jung Pil Hyun , Yang Woon Geun 
Published: February 2013

AbstractIn this article, we design a wideband top loop loaded monopole antenna for mobile handset. There is one loop made by a rectangular‐shaped slot on the top of the proposed antenna. The top loop is an asymmetric structure. Owing to the top loop, the antenna can have a huge bandwidth from 1540 to 2610 MHz. A High Frequency Structure Simulator (HFSS) is employed to analyze the proposed antenna in the design process and to compare the simulation and experimental results. The bandwidth of the proposed antenna is measured as 1500–2600 MHz for Voltage Standing Wave Ratio (VSWR) of less than 3. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:779–782, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27443
Dual band high gain monopole antenna for modern mobile devices
Authors: Rezaeieh Sasan Ahdi , Kartal Mesut , Kent Sedef 
Published: February 2013

AbstractA miniaturized dual‐band antenna with a novel shape in patch and a hybrid design in parasitic plane is presented. The antenna is miniaturized as 22.5 mm × 22.5 mm × 1 mm and operates dual band between 1.7 GHz and 3.7 GHz and 8.4 GHz ∼ 9.6 GHz, that covers DCS (1710–1880 MHz), PCS(1850–1990 MHz), UMTS (1920–2170 MHz), 3G, Wi‐Fi, WLAN, WiMax, and Bluetooth bands. Measurement data attest to the satisfaction of the design specifications. A prototype of antenna is fabricated and a good agreement with simulated results is obtained. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:796–800, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27446
A fiber optic sensor based on air‐gap long period gratings for pH sensing application
Authors: Mau Jiang‐Chiou , Lin Guei‐Ru , Fu Ming‐Yue , Liu Wen‐Fung 
Published: February 2013

AbstractIn this article, a pH fiber‐optic sensor based on an air‐gap long period fiber grating (AG‐LPG) in a multi‐modes fiber is proposed. Owing to the different pH solutions to cause the index variation of surrounding AG‐LPG, the grating wavelength will be shifted due to the change of the effective index both in core and cladding layers. For pH sensing applications, the experimental results show the sensitivity of −0.219 nm/pH and 0.248 nm/pH for measuring the acid and alkaline solutions respectively. This simple sensing head can be applied in a real‐time and long‐term monitoring pH change of drinking water or testing solutions. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:855–857, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27466
A frontal Delaunay quad mesh generator using the L ∞ norm
Authors: Remacle J.‐F. , Henrotte F. , Carrier‐Baudouin T. , Béchet E. , Marchandise E. , Geuzaine C. , Mouton T. 
Published: March 2013

SUMMARYIn a recent work, a new indirect method to generate all‐quad meshes has been developed. It takes advantage of a well‐known algorithm of the graph theory, namely the Blossom algorithm, which computes in polynomial time the minimum cost perfect matching in a graph. In this paper, we describe a method that allows to build triangular meshes that are better suited for recombination into quadrangles. This is performed by using the infinity norm to compute distances in the meshing process. The alignment of the elements in the frontal Delaunay procedure is controlled by a cross field defined on the domain. Meshes constructed this way have their points aligned with the cross‐field directions, and their triangles are almost right everywhere. Then, recombination with the Blossom‐based approach yields quadrilateral meshes of excellent quality. Copyright © 2013 John Wiley & Sons, Ltd.
Impact of native defects in high‐k dielectric oxides on GaN/oxide metal–oxide–semiconductor devices
Authors: Choi Minseok , Lyons John L. , Janotti Anderson , Van de Walle Chris G. 
Published: March 2013

AbstractWe perform first‐principles calculations to investigate the electronic structure of native defects in various oxide dielectrics to address the impact of defects on GaN/oxide metal–oxide–semiconductor (MOS) devices. We calculate defect formation energies in Al2O3, HfO2, and LaAlO3, as a function of the chemical potentials and of the Fermi‐level position in the band gap. By aligning the conduction‐band and valence‐band edges of these oxides to those of GaN, the role of native defect as charge‐trap or fixed‐charge centers in GaN‐based MOS devices is examined. We find that oxygen vacancies in the oxide dielectrics result in charge‐state transition levels near the GaN conduction‐band edge. They can therefore introduce border traps and/or leakage current through the gate dielectric in the n‐GaN/oxide MOS devices such as MOS field‐effect‐transistors. While the transition levels for other defects are well away from the GaN conduction‐band edge, these defects are stable in non‐neutral charge states and thus act as sources of fixed charge in MOS devices.
Stochastic service systems, random interval graphs and search algorithms
Authors: Eschenfeldt Patrick , Gross Ben , Pippenger Nicholas 
Published: February 2013

ABSTRACTWe consider several stochastic service systems, and study the asymptotic behavior of the moments of various quantities that have application to models for random interval graphs and algorithms for searching for an idle server or for an vacant or occupied waiting station. In some cases the moments turn out to involve Lambert series for the generating functions for the sums of powers of divisors of positive integers. For these cases we are able to obtain complete asymptotic expansions for the moments of the quantities in question. © 2013 Wiley Periodicals, Inc. Random Struct. Alg., 45, 421–442, 2014
New public key cryptosystems based on non‐Abelian factorization problems
Authors: Gu Lize , Wang Licheng , Ota Kaoru , Dong Mianxiong , Cao Zhenfu , Yang Yixian 
Published: March 2013

ABSTRACTTwo novel public key encryption schemes based on the non‐Abelian factorization problems were proposed. Both of them are proved to be indistinguishable against adaptively chosen ciphertext attack (IND‐CCA2) in the random oracle models. These constructions have the potential to resist Shor's quantum algorithm attack proposed in 1994 and give affirmative answers for the open question announced by Myasnikov, Shpilrain and Ushakov in 2011. Copyright © 2013 John Wiley & Sons, Ltd.
Multi‐camera‐based security log management scheme for smart surveillance
Authors: Kim Daehoon , Hwang Eenjun , Rho Seungmin 
Published: March 2013

ABSTRACTIn this paper, we propose a new security log management scheme for smart surveillance in a multi‐camera environment. Basically, our security log consist of descriptions for various behavior properties of moving objects, such as motion type, time, and speed in a merged camera view. To generate such security log, we first analyze the input video frame from each surveillance camera and construct a motion vector of interest points in the frame. By analyzing the motion vector, we recognize moving objects and trace their local behavior in the video. On the basis of this analysis, we can calculate various global behavior features of the objects in the merged camera view, which can be acquired by stitching together the frames from multiple camera inputs. Such global behavior features are captured into security logs, which can be used to smartly carry out various surveillance operations such as retrieving objects whose behavior is similar to a query behavior or whose behavior shows predefined abnormality. Because our scheme treats all the objects in the frame independently, it can handle multiple objects simultaneously. We implemented a prototype system and performed various experiments to demonstrate that our scheme can achieve a reasonable performance. Copyright © 2013 John Wiley & Sons, Ltd.
A hill cipher‐based remote data possession checking in cloud storage
Authors: Chen Lanxiang , Guo Gongde , Peng Zhen 
Published: March 2013

ABSTRACTCloud storage enables users to access their data at any time anywhere. It has the advantages of high scalability, ease of use, cost effectiveness, and so on. However, the server that stores users' data may not be fully trustworthy. When users store their data in cloud storage, they concern much about data intactness. This is the goal of remote data possession checking schemes. This paper proposes a Hill cipher‐based remote data possession checking scheme. The main idea of the scheme comes from the homomorphism of Hill cipher, namely the tags computed from plaintext blocks can be used to compare with the tags computed from ciphertext blocks. It has several advantages as follows. First, it is efficient in terms of computation and communication. Second, it allows verification without the need for the challenger to compare against the original data. Third, the scheme only needs to store a small amount of metadata and use only small challenges and responses. Finally, it performs data possession checking at the same time it provides confidentiality of data. The security and performance analysis illustrates that the scheme is feasible and effective. Copyright © 2013 John Wiley & Sons, Ltd.
Quantitative analysis of human ras localization and function in the fission yeast Schizosaccharomyces pombe
Authors: Bond Michael , Croft Wayne , Tyson Richard , Bretschneider Till , Davey John , Ladds Graham 
Published: March 2013

AbstractRas signalling is central to fundamental and diverse cellular processes. In higher eukaryotes ras signalling is highly complex, involving multiple isoforms, regulatory proteins and effectors. As a consequence, the study of ras activity in mammalian systems presents a number of technical challenges. The model organism Schizosaccharomyces pombe has previously proved a key system for the study of human signalling components and provides an ideal model for the study of ras, as it contains just one ras protein (Ras1p), which is non‐essential and controls a number of downstream processes. Here we present data demonstrating the quantitative analysis of three distinct Ras1‐related signalling outputs, utilizing the three most abundant human ras isoforms, H‐Ras, N‐Ras and K‐Ras4B, in Sz. pombe. Further, we have characterized the localization of these three human ras isoforms in Sz. pombe, utilizing quantitative image analysis techniques. These data indicate that all three human ras isoforms are functional in fission yeast, displaying differing localization patterns which correlate strongly with function in the regulation of pheromone response and cell shape. These data demonstrate that such yeast strains could provide powerful tools for the investigation of ras biology, and potentially in the development of cancer therapies. Copyright © 2013 John Wiley & Sons, Ltd.
Cyclicity and variability in prey dynamics strengthens predator numerical response: the effects of vole fluctuations on white stork productivity
Authors: Hušek Jan , Adamík Peter , Albrecht Tomáš , Cepák Jaroslav , Kania Wojciech , Mikolášková Eva , Tkadlec Emil , Stenseth Nils Chr. 
Published: February 2013

AbstractTheory predicts that optimality of life‐long investment in reproduction is, among other factors, driven by the variability and predictability of the resources. Similarly, during the breeding season, single resource pulses characterized by short periods and high amplitudes enable strong numerical responses in their consumers. However, it is less well established how spatio‐temporal dynamics in resource supplies influence the spatio‐temporal variation of consumer reproduction. We used the common vole (Microtus arvalis)—white stork (Ciconia ciconia) resource—consumer model system to test the effect of increased temporal variation and periodicity of vole population dynamics on the strength of the local numerical response of storks. We estimated variability, cycle amplitude, and periodicity (by means of direct and delayed density dependence) in 13 Czech and Polish vole populations. Cross‐correlation between annual stork productivity and vole abundance, characterizing the strength of the local numerical response of storks, increased when the vole population fluctuated more and population cycles were shorter. We further show that the onset of incubation of storks was delayed during the years of higher vole abundance. We demonstrate that high reproductive flexibility of a generalist consumer in tracking the temporal dynamics of its resource is driven by the properties of the local resource dynamics and we discuss possible mechanisms behind these patterns.