bluuebunny/crossref_metadata_2025_split huggingface dataset:
Printed dual ring loop antenna for wide‐dual‐frequency band of wireless applications
Authors: Lee Hyeonjin , Lim Yong‐Moo 
Published: March 2012

AbstractIn this article, a wide and dual band printed dual ring antenna is presented for a wide local area network (WLAN)(2.4/5.4/5.8) applications.The proposed antenna consists of a dual ring loop, which is misaligned array. A printed dual ring loops antenna is fed by a coplanar waveguide. This provides wideband performance and relatively good matching. As result the antenna is operated frequency bands of 1.98–3.55 GHz, 3.82–6.0 GHz, criterion of less than 10 dB. The operating frequency bands of proposed antenna are able to support WLAN communications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1317–1318, 2012
Highly capacity RFID generated by a soliton pulse within a panda ring resonator
Authors: Mitatha S. , Udomariyasap P. , Noppanakeepong S. , Yupapin P. P. 
Published: March 2012

AbstractA new design of THz frequency carrier generation for radio frequency identification (RFID) application is presented. The dense wavelength division multiplexing can be generated and obtained by using a Gaussian or soliton pulses propagating within a modified add–drop filter known as a PANDA ring resonator. A system is consisted of a serial nonlinear microring resonator system. The broad bandwidth of THz signals can be obtained and available for useful applications. The selected signals can be filtered and obtained by using the add/drop filter. Results obtained have shown that the increasing in channel capacity can be obtained and useful for the large demand of RFID applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1339–1342, 2012
50–60 GHz local oscillator transmission over fiber using optical frequency multiplication
Authors: Llopis O. , Martinet P. , Merrer P. H. , Saleh K. 
Published: March 2012

AbstractThe main parameters of a local oscillator distribution in the millimeter wave range are described. The link is based on optical frequency multiplication taking benefit of the modulator nonlinearity. It is modeled using an original computer aided design (CAD) approach. Then, various practical solutions are compared and their phase noise floor is measured. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1313–1316, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26780
Enhancement of pattern directivity for the open slot antenna by utilizing array topology
Authors: Wang Chien‐Jen , Dai Yang 
Published: March 2012

AbstractIn this article, a new design for the open slot antenna with a high front‐to‐back gain ratio is proposed and presented. By utilizing a two‐element array topology, a power combination is achieved and a unidirectional radiation pattern is derived. To suppress the backward radiating power, a pair of symmetrical notched slits with uniform width is etched such that the currents distributing along two longitudinal edges of the ground plane cannot flow backward. In addition, three arrays of eight‐element metal strips are utilized as a power director to increase the forward power and improve the front‐to‐back ratio of the antenna. From the measured results, the proposed antenna topology demonstrates a front‐to‐back (F/B) ratio of 22.3 dB and possesses superior end‐fire radiating characteristics. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1273–1277, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26782
2 × 10 Gbit/s nonreturn‐to‐zero‐ook to 10 Gbaud quasicontinuous phase modulation all‐optical conversion using cascaded mach–zehnder interferometer‐semiconductor optical amplifiers
Authors: Dionísio Rogerio P. , Parca Giorgia , Reis Claudia , Nogueira Rogério , Teixeira António L. 
Published: March 2012

AbstractAn optical format conversion from nonreturn‐to‐zero (NRZ) to quasicontinuous phase modulation (Qu‐CPM) using two Mach–Zehnder interferometer‐semiconductor optical amplifiers in serial is presented, and its feasibility is demonstrated in a 2 × 10 Gb/s NRZ‐OOK to one 10 Gbaud Qu‐CPM conversion experiment.© 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1240–1242, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26783
Compact wideband LTCC bandstop filter using vertical coupled‐line units
Authors: Qian Kewei , Tang Xiao‐Hong 
Published: March 2012

AbstractA novel compact bandstop filter (BSF) using vertical coupled striplines is presented. Stopband rejection depth and bandwidth can be easily controlled by the coupling factor of the coupled‐line section. A lossless transmission line model analysis is used for filter analysis. To validate the proposed topology, a multilayer BSF centered at 5.8 GHz with bandwidth of 75% is designed and built. Good agreement between measured and simulated results is obtained. With the assistance of vertical coupling structure and LTCC technology, the filter occupies an area of only 4.7 mm × 3.8 mm. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1173–1176, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26787
Internal WWAN/LTE handset antenna integrated with USB connector
Authors: Wong Kin‐Lu , Chang Yu‐Wei 
Published: March 2012

AbstractA new internal eight‐band wireless wide area network (WWAN)/long‐term evolution (LTE) handset antenna comprising a small antenna ground and two coupled‐fed 0.25‐wavelength loop antennas disposed on two sides of the antenna ground is presented.In one loop antenna, a chip inductor is embedded to result in dual‐resonance excitation of its 0.25‐wavelength loop mode and also to adjust the antenna's loading effects on the excited resonant modes at higher frequencies contributed by the other loop antenna. The chip inductor loading greatly helps the proposed antenna in achieving two wide operating bands for the desired WWAN/LTE operation in the 704–960 and 1710–2690 MHz bands. The proposed antenna is especially suitable to be mounted on top of a protruded ground extended from the main ground of the handset to accommodate a universal series bus connector, which serves as a data port of the handset. Details of the proposed antenna are described. Radiation characteristics and specific absorption rate of the antenna are also presented and discussed. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1154–1159, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26788
Bandpass and bandstop filters based on open stubs with ground plane slots
Authors: Fernández‐Prieto A. , Martel J. , Medina F. , Mesa F. 
Published: March 2012

AbstractThis work reports on a modified version of λ/2 open stubs bandpass filters (λ/2‐OSBPFs) and λ/4 open stubs bandstop filters (λ/4‐OSBSFs) for wide/narrow bandwidth operation. When wide bandwidths (for λ/2‐OSBPF) or narrow bandwidths (for λ/4‐OSBSF) are required, conventional microstrip implementation of this kind of filters is not possible owing to unattainable high stub characteristic impedance values, which lead to extremely narrow strips. To overcome this drawback, we propose the introduction of slots under the stubs along the grounded backside of the substrate. This provides additional flexibility for the width of the strips printed on the upper side of the substrate, which can be much wider than without the slots. To avoid undesired resonances of the slot mode and radiation problems, printed narrow strip short circuits are distributed along the slotted regions. It is shown that the presence of these strips does not meaningfully affect the filter performance while suppresses the undesired slot mode effects. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1242–1246, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26792
Novel method of detecting cholesterol using microwaves
Authors: Lonappan Anil 
Published: March 2012

AbstractThis article reports a novel method of detecting cholesterol in blood based on the measurement of the dielectric properties at microwave frequencies.The measurements were made using rectangular cavity perturbation technique at the S‐band of microwave frequency with the different samples of blood obtained from healthy donors as well as from patients having cholesterol in their blood stream. It is observed that an appreciably change in the dielectric properties of patient samples with the normal healthy samples and this measurements were in good agreement with clinical analysis. These results indicate an alternate novel method of detecting the presence of cholesterol in blood using microwaves whereby can diagnose the onset of cardiovascular diseases. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1212–1215, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26794
Band‐notched small square slot antenna for ultra‐wideband applications
Authors: Ojaroudi M. , Ojaroudi N. 
Published: March 2012

AbstractIn this article, a novel printed slot antenna for ultra wideband applications with variable frequency band‐notch characteristic is presented.The proposed antenna consists of a modified radiating stub with a pair of L‐shaped slits and a ground plane with two T‐shaped parasitic structures, which provides a wide usable fractional bandwidth of more than 135% (2.81–5.1 GHz) while showing the band rejection performance in the frequency band of 5 to 6 GHz. By cutting a pair of L‐shaped slits with variable dimensions on the radiating stub frequency band‐stop performance is generated and we can control its characteristics such as band‐notch frequency and its bandwidth. The designed antenna has a small size of 20 × 20 mm2. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1138–1143, 2012
Frequency reconfigurable zeroth‐order resonant antenna using RF MEMS switch
Authors: Jang Youngsoo , Choi Jaehyurk , Lim Sungjoon 
Published: March 2012

AbstractIn this article, a frequency reconfigurable zeroth‐order resonant (ZOR) antenna using RF micro‐electron‐mechanical‐system (MEMS) switch has been implemented. The ZOR characteristics of the proposed antenna are realized using the composite right‐ and left‐handed (CRLH) transmission line, which is realized by way of a rectangular slot on the ground plane of mushroom‐structured antenna to minimize the antenna size. In addition, the RF MEMS switches are introduced on the slotted ground plane to change operation frequency. Depending on the states of the RF MEMS switch on the slotted ground plane, a shunt inductance of the CRLH transmission line is changed, and its resonant frequency becomes tunable. From the experimental results, the resonant frequency of the proposed antenna is changed from 4.95 to 4.66 GHz. Additionally, the proposed antenna's size is reduced by 71.5% compared with the conventional half‐wavelength patch antenna. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1266–1269, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26803
Using anchoring vignettes to assess the comparability of self‐rated feelings of sadness, lowness or depression in France and Vietnam
Authors: Guindon G. Emmanuel , Boyle Michael H. 
Published: March 2012

AbstractGeneral measures of self‐rated health are collected routinely in national health surveys and widely used in the analyses of determinants of health and health care utilization. However, these subjective assessments can be influenced by health expectations (contextualized beliefs about health) that may vary systematically across individuals and be associated with their socio‐demographic characteristics. Our objective is to contrast the impact of health expectations associated with respondent characteristics (reporting heterogeneity) on self‐rated feelings of sadness, lowness or depression obtained from general population samples in France and Vietnam. Based on self ratings and ratings in response to common anchoring vignettes depicting different levels of depression, we used nationally representative data from the World Health Survey conducted in France (2002) and Vietnam (2002–2003) and a modification of the standard probit model to test and adjust for reporting heterogeneity associated with individual characteristics. We find evidence of reporting heterogeneity within France and Vietnam and across the two countries. In particular we find that, when adjusted for reporting heterogeneity, sex is no longer significantly associated with self‐rated feelings of sadness, lowness or depression in France. Given the absence of clear biological markers in the definitions of depressive disorders and the substantial impact reporting heterogeneity is shown to have, measures of depressive disorders based on self‐reports should be interpreted with caution. Copyright © 2012 John Wiley & Sons, Ltd.
The Integrated Deconvolution Estimation Model: Effect of Inter‐Laboratory 13C NMR Analysis on IDEM Performance
Authors: Al‐Saleh Mohammad A. , Soares João B. P. , Duever Thomas A. 
Published: March 2012

AbstractThe IDEM estimates the reactivity ratios of multiple‐site‐type catalysts used to make ethylene/α‐olefin copolymers. Analytical data from high‐temperature GPC and 13C NMR are required in the estimation process. The CSLD information from the 13C NMR is a crucial step in the estimation method due to NMR sensitivity and probe efficiency. The effect of inter‐laboratory analysis on IDEM parameter estimation and model predictions is studied. The copolymer samples are analyzed at the University of Waterloo and Dow Chemical Research Center at Freeport, Texas without standardization. The results prove that the IDEM is a robust parameter estimation model for ethylene/α‐olefin copolymers made with multiple‐site‐type catalysts, even when the copolymer samples are analyzed in different laboratories.magnified image
Chronic pelvic pain syndrome/bladder pain syndrome: Taking stock, looking ahead: ICI‐RS 2011
Authors: Hanno Philip , Andersson Karl Eric , Birder Lori , Elneil Suzy , Kanai Anthony , Pontari Michel 
Published: March 2012

AbstractThis review reflects the presentations and subsequent discussions at the International consultation on Incontinence Research Society's annual meeting. It updates the current definitions and diagnostic and treatment algorithms for bladder pain syndrome and chronic pelvic pain syndrome (non‐bacterial prostatitis), highlights some specific basic research findings from discussion participants, looks at what we can hope to eventually learn from a large multicenter National Institutes of Health study, reviews future research pathways as articulated by the National Urologic Research Agenda of the American Urological Association and others, discusses recent therapeutic efforts, and concludes with discussion points from the ICI‐RS meeting. Neurourol. Urodynam. 31:375–383, 2012. © 2012 Wiley Periodicals, Inc.
Nocturia think tank: Focus on nocturnal polyuria: ICI‐RS 2011
Authors: Weiss Jeffrey P. , Ruud Bosch J.L.H. , Drake Marcus , Dmochowski Roger R. , Hashim Hashim , Hijaz Adonis , Johnson Theodore M. , Vinter Juul Kristian , Nørgaard Jens Peter , Norton Peggy , Robinson Dudley , Tikkinen Kari A.O. , Van Kerrebroeck Philip E.V. , Wein Alan J. 
Published: March 2012

AbstractThe following is a report of the proceedings of the Nocturia Think Tank sessions of the annual International Consultation on Incontinence‐Research Society, which took place June 13–15, 2011 in Bristol, UK. The report is organized into sections pertaining to the main topics of discussions having occurred at that meeting, centering on the relationship of nocturnal polyuria (NP) and nocturia but also synthesizing more current evidence advancing our knowledge of the diagnosis and management of nocturia. This article is not meant to be a comprehensive review on the subject of nocturia, a number of which are available in the recent literature. All authors were physically present during, or in a preliminary session just prior to, the meeting in Bristol. Neurourol. Urodynam. 31:330–339, 2012. © 2012 Wiley Periodicals, Inc.
Unintended? The effects of adoption of the Sarbanes‐Oxley Act on nonprofit organizations
Authors: Nezhina Tamara G. , Brudney Jeffrey L. 
Published: March 2012

AbstractThis article investigates the benefits and costs to nonprofit organizations emanating from the adoption of the Sarbanes‐Oxley Act (2002). The act was intended to stem financial malfeasance in the for‐profit sector; nevertheless the article finds that about half the surveyed nonprofits adopted provisions of the act and experienced effects in proportion to the level of adoption. About one in four of the nonprofits attributed benefits of better financial controls and reduced risk of accounting fraud to the adoption of the Sarbanes‐Oxley Act. More than one‐third of the nonprofit organizations reported increased fees for external audit, and about 15 percent cited “reallocation of resources from program to administrative expenses.” This article discusses the unintended positive and negative effects of public policy on nonprofit organizations.
Synthesis of well‐defined amphiphilic polymethylene‐b‐poly(ε‐caprolactone)‐b‐poly(acrylic acid) triblock copolymer via a combination of polyhomologation, ring‐opening polymerization, and atom transfer radical polymerization
Authors: Yuan Cong , Lu Hui‐Chao , Li Qi‐Zheng , Yang Sen , Zhao Qiao‐Ling , Huang Jin , Wei Liu‐He , Ma Zhi 
Published: March 2012

AbstractWell‐defined amphiphilic polymethylene‐b‐poly(ε‐caprolactone)‐b‐poly(acrylic acid) (PM‐b‐PCL‐b‐PAA) triblock copolymers were synthesized via a combination of polyhomologation, ring‐opening polymerization (ROP), and atom transfer radical polymerization (ATRP). First, hydroxyl‐terminated polymethylenes (PM‐OH; Mn = 1100 g mol−1; Mw/Mn = 1.09) were produced by polyhomologation followed by oxidation. Then, the PM‐b‐PCL (Mn = 10,000 g mol−1; Mw/Mn = 1.27) diblock copolymers were synthesized via ROP of ε‐caprolactone using PM‐OH as macroinitiator and stannous octanoate (Sn(Oct)2) as a catalyst. Subsequently, the macroinitiator transformed from PM‐b‐PCL in high conversion initiated ATRPs of tert‐butyl acrylate (tBA) to construct PM‐b‐PCL‐b‐PtBA triblock copolymers (Mn = 11,000–14,000 g mol−1; Mw/Mn = 1.24–1.26). Finally, the PM‐b‐PCL‐b‐PAA triblock copolymers were obtained via the hydrolysis of the PtBA segment in PM‐b‐PCL‐b‐PtBA triblock copolymers. The chain structures of all the polymers were characterized by gel permeation chromatography, proton nuclear magnetic resonance, and Fourier transform infrared spectroscopy. Porous films of such triblock copolymers were fabricated by static breath‐figure method and observed by scanning electron microscope. The aggregates of PM‐b‐PCL‐b‐PAA triblock copolymer were studied by transmission electron microscope. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
Insights into the Atmospheric Pressure Plasma‐Enhanced Chemical Vapor Deposition of Thin Films from Methyldisiloxane Precursors
Authors: Fanelli Fiorenza , Lovascio Sara , d'Agostino Riccardo , Fracassi Francesco 
Published: March 2012

AbstractThis work describes the plasma‐enhanced chemical vapor deposition of thin films at atmospheric pressure using dielectric barrier discharges fed with argon, oxygen and different methyldisiloxanes, i.e., hexamethyldisiloxane, pentamethyldisiloxane, and 1,1,3,3‐tetramethyldisiloxane. The influence of the methyldisiloxane chemical structure and of the oxygen/methyldisiloxane feed ratio is investigated in order to provide insights into the organosilicon plasma chemistry at atmospheric pressure. As expected the FT‐IR and XPS analyses show that the carbon content of the coatings depends on the number of methyl groups in the precursor molecule; in the case of coatings obtained with PMDSO and TMDSO carbon removal seems to be further enhanced by the presence of SiH bonds. Gaschromatography‐mass spectrometry analyses of the exhaust gas allow to assess the precursor depletion and to perform the quali‐quantitative determination of by‐products (e.g., silanes, siloxanes, silanols) formed by plasma activation. The results are exploited to rise hypotheses on the contribution of the different reaction pathways on the deposition mechanism.magnified image
Superior herniation of the mediastinum presenting as an anterior neck mass on straining
Authors: McDougall Catherine M. , Culham Gordon , Seear Michael D. , Chilvers Mark A. 
Published: March 2012

AbstractWe report an infant with an anterior neck mass present only on straining. Airway fluoroscopy revealed this to be due to superior mediastinal herniation. Neck masses apparent only during Valsalva maneuver are rare and awareness of the differential diagnosis is important to avoid unnecessary investigation or surgery. Pediatr Pulmonol. 2012; 47:710–712. © 2012 Wiley Periodicals, Inc.
The identification and internal validation of a preoperative serum biomarker panel to determine extracapsular extension in patients with prostate cancer
Authors: Oon Sheng F. , Fanning Deirdre M. , Fan Yue , Boyce Susie , Murphy T. Brendan , Fitzpatrick John M. , Watson R. William 
Published: March 2012

AbstractBACKGROUNDAccurate preoperative staging of prostate cancer (PCa) is important but current diagnostic methods cannot accurately determine extracapsular extension (ECE), resulting in the possible triage of patients towards a less appropriate arm of therapy. This has consequences to patient care and better methods of preoperatively determining ECE are required.METHODSWe followed a biomarker development pathway and compared the preoperative serum expressions of VEGF‐D, PEDF, IGF‐I, IGFBP3, and CD14 in patients from the Irish Prostate Cancer Research Consortium (PCRC) with radical prostatectomy determined ECE against patients with nonECE.RESULTSThe expression measurements of five proteins were fitted into a logistic regression model and backwards variable elimination methods were applied which resulted in a model with IGFBP3 and CD14 as the best combination biomarker panel. This panel was tested in an independent cohort of patients using an optimized multiplex electrochemiluminescence assay. Receiver operating characteristic curves were generated and the areas under the curve (AUC) were calculated as an estimation of prediction accuracy. The biomarker panel was validated with an AUC of 76.6%, and a sensitivity and specificity of 80% and 75% was obtained.CONCLUSIONSThis is the first internally validated, preoperative serum biomarker panel that identifies ECE in patients with Gleason score 7 PCa with AUC 76.6%. The panel surpasses the routinely used diagnostic standards in accuracy and may help to improve preoperative cancer staging, better inform treatment options, and improve the referral patterns of patients with urgently treatable cancers towards more appropriate arms of therapy. Prostate 72:1523–1531, 2012. © 2012 Wiley Periodicals, Inc.