bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and analysis of spiral‐type Marchand balun using physical transformer model on glass integrated passive device substrate
Authors: Huang Chien‐Hsiang , Chen Chien‐Hsun , Lin Yi‐Chieh , Horng Tzyy‐Sheng 
Published: June 2011

AbstractA simple and effective technique for designing Marchand baluns is presented in this letter. The symmetric coupled transmission lines are modeled based on compatible transformer lumped equivalent circuits. This technique was adopted to design Marchand baluns. To validate the analytical results and demonstrate the design approach, Marchand balun was designed and implemented on glass integrated passive device (IPD) process technology. In this letter, a integrated spiral‐shaped Marchand balun has been carried out to provide low insertion loss and high common‐mode rejection ratio over a remarkably wide bandwidth around an operating center frequency of 2.45 GHz. Finally, the measured results agree well with the electro‐magnetics (EM)‐simulated and ‐modeled results, by validating IPD design process. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26187
Millimeter‐wave carrier generation by optical frequency multiplication using stimulated Brillouin scattering and four‐wave mixing
Authors: Han Seung Heon , Park Chul Soo , Hann Swook , Lee Seong Ro , Park Chang‐Soo 
Published: June 2011

AbstractWe introduced a method to generate an optical millimeter‐wave (MMW) carrier based on stimulated Brillouin scattering (SBS) and four‐wave mixing (FWM). By placing two single mode fibers and a semiconductor optical amplifier (SOA) along the bidirectional loop, we were able to implement the process. In particular, by combining SBS and FWM effects during bidirectional transmission, we effectively obtained a MMW carrier through multiple sidebands amplified by two optical nonlinearities. During experimentation, the generated MMW carrier displayed a narrow linewidth of 314 Hz at a frequency of 54.26 GHz, as well as phase noise of −81.50 dBc/Hz at 10 kHz offset. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26204
Band‐pass filter with broad‐side coupled triple split‐ring resonator using left‐handed metamaterial
Authors: Yoon Ki‐Cheol , Kim Jeonggon Harrison , Lee Jong‐Chul 
Published: June 2011

AbstractThis article presents a new bandpass filter (BPF) with a broad‐side coupled triple split‐ring resonator (T‐SRR) using left‐handed metamaterial on a Teflon substrate.Then, by replacing the series quarter‐wavelength connecting lines with the equivalent T‐shaped line, a compact BPF with a second harmonic rejection can be obtained. These filters show insertion losses of 1.2 and 0.75 dB, and return losses of 17.8 and 18.2 dB at the central frequency of 10 GHz, respectively. The experimental result for the second harmonic rejection is 21.5 dB at 17.3 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26219
A dual‐band shorted monopole antenna for WLAN‐band application
Authors: Liu Wen‐Chung , Dai Yang 
Published: June 2011

AbstractA novel printed monopole antenna for dual‐band operation is presented. The antenna comprises a radiator having a strip and two side‐loaded patches, and is fed by a microstrip feedline. By folding top one of the side‐loaded patches on the other side of the substrate as well as connecting the two patches by a short pin, good antenna performances including dual wide bandwidths of 590 MHz and 1.12 GHz, high antenna gains of ≥2.5 and 3.6 dBi, and monopole‐like radiation patterns over the two operating bands, respectively, are obtained. The measured results show good agreement with the simulated ones and sufficiently cover the operation requirements of the 2.4/5.2/5.8 GHz wireless local area network communication system. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26220
Improved measurement of complex permittivity using artificial neural networks with scaled inputs
Authors: Hasan Azhar , Peterson Andrew F. 
Published: June 2011

AbstractA procedure is described to enhance the accuracy of microwave measurements of the complex permittivity of a dissipative medium.Monopole probe measurements are used in conjunction with two real‐valued neural networks, which are integrated together to reconstruct the complex permittivity from the measured reflection coefficients. The approach is tested over the frequency range from 2.5 to 5 GHz, for the real part of the permittivity in the range 3–10 and the imaginary part in the range 0– 0.5. The performance of the network is also demonstrated for a reduced frequency range from 3.5 to 5 GHz. Less than 4% error was observed in the presence of white Gaussian noise with an SNR of 10dB. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26221
Initial testing (stage 1) of LCL161, a SMAC mimetic, by the pediatric preclinical testing program
Authors: Houghton Peter J. , Kang Min H. , Reynolds C. Patrick , Morton Christopher L. , Kolb E. Anders , Gorlick Richard , Keir Stephen T. , Carol Hernan , Lock Richard , Maris John M. , Billups Catherine A. , Smith Malcolm A. 
Published: June 2011

AbstractLCL161, a SMAC mimetic, was tested against the PPTP in vitro panel (1.0 nM to 10.0 µM) and the PPTP in vivo panels (30 or 75 mg/kg [solid tumors] or 100 mg/kg [ALL]) administered orally twice in a week. LCL161 showed a median relative IC50 value of >10 µM, being more potent against several leukemia and lymphoma lines. In vivo LCL161 induced significant differences in EFS distribution in approximately one‐third of solid tumor xenografts (osteosarcoma and glioblastoma), but not in ALL xenografts. No objective tumor responses were observed. In vivo LCL161 demonstrated limited single agent activity against the pediatric preclinical models studied. Pediatr Blood Cancer 2012; 58: 636–639. © 2011 Wiley Periodicals, Inc.
Exocrine pancreatic tumors in childhood in Germany
Authors: Ellerkamp Verena , Warmann Steven W. , Vorwerk Peter , Leuschner Ivo , Fuchs Joerg 
Published: June 2011

AbstractBackgroundPancreatic tumors (PT) in childhood are rare. Standard therapeutic approaches are lacking. Our aim was to analyze treatment modalities and outcome in children with PT.ProcedureBetween 1980 and 2007, 55 patients with exocrine PT < 16 years old were registered. Data were obtained from the German Pediatric Tumour Registry. Medical records were evaluated and patient data were pseudonymized.ResultsPatient records of 29 children were available (9 male, 20 female, median age 11.2 years, range 3.1–16). In 18 patients a solid‐pseudopapillary tumor (SPT) was diagnosed, in 7 patients a pancreatic carcinoma (P‐CA) (5 acinar cell carcinoma (ACC), 2 ductal adenocarcinoma (DCA)), and in 4 patients a pancreatoblastoma (PBL). In 69% of the patients the initial radiological findings led to an incorrect tentative diagnosis. Initial histopathological diagnoses were differing from the reference pathology in 50% of the SPT and 45% of the P‐CA. In the group of SPT survival rate was 100%; all patients underwent surgical resection. There were two cases of tumor relapse and one late secondary malignancy of the pancreas (DCA). In P‐CA patients, survival rate was 14%, in the PBL group the survival rate was 25%. Concepts of chemotherapy, radiotherapy, and surgical intervention in P‐CA and PBL were varying widely.ConclusionsIn all cases of pediatric PT reference pathology and reference radiology should be involved. Standardized treatment concepts as well as prospective data registrations need to be entrenched. Pediatr Blood Cancer 2012; 58: 366–371. © 2011 Wiley Periodicals, Inc.
Effect of carbon nanofiber (CNF) silanization on the properties of CNF/epoxy nanocomposites
Authors: Nie Yaru , Hübert Thomas 
Published: June 2011

AbstractCarbon nanofibers (CNFs) were functionalized by a multistage process including oxidation, reduction and silanization. The chemical modifications were examined by Fourier transform infrared spectroscopy, X‐ray photoelectron spectrometry, Raman spectroscopy and thermogravimetric analysis. The silanized CNFs were then added into an epoxy resin (EPON 828) to study the effect of the surface modification of CNFs on the properties of nanocomposites. For comparison, nanocomposites containing original unmodified CNFs were also investigated. Scanning electron microscopy indicates better dispersion of modified fibers in the epoxy polymer matrix; the mechanical and thermal properties of composites are also improved; the electrical conductivity of the composites is reduced. Copyright © 2011 Society of Chemical Industry
The cost of mental health – is the price right?
Authors: Titmarsh Steve 
Published: June 2011

AbstractCost is a major focus in healthcare, and in the current economic climate the pressure to reduce costs is greater than ever. The latest round of organisational changes proposed for the NHS may encourage new thinking about commissioning and delivery of care, as well as the way the total cost of one treatment is compared with another. Some of the issues in managing mental healthcare costs within the NHS were discussed at a satellite symposium, organised by Lundbeck Ltd, held at the 10th Latest Advances in Psychiatry Symposium in London in March. Steve Titmarsh reports. Copyright © 2011 Wiley Interface Ltd
Proteome and cytokine serum profiling to diagnose a mycosis fungoides
Authors: Moshkovskii Sergei A. , Sokolova Elizaveta E. , Brattseva Ekaterina V. , Karpova Maria A. , Pyatnitskiy Mikhail A. , Kubanova Anna A. , Archakov Alexander I. 
Published: June 2011

AbstractPurpose: The aim of this study was to estimate a possibility of mycosis fungoides (MF) diagnostics based on protein profiling in blood serum.Experimental design: We obtained and analysed samples of blood serum from 23 patients with MF, and 29 psoriasis patients and 22 healthy donors as controls. Protein profiling was carried out using SELDI TOF MS SELDI‐TOF and also profiling of 27 cytokines with multiplex immunoassay technology was implemented.Results: MS data analysis of sera did not give satisfactory statistical discrimination between the groups. Antibody‐based cytokine profiling revealed a number of cytokines with a change in their concentrations in both MF and psoriasis (IL‐1Ra, IL‐4, G‐CSF). The C‐X‐C motif chemokine 10 (IP‐10, CXCL10) cytokine had a significantly increased concentration (p<0,001) in samples from MF patients as compared with the other groups.Conclusions and clinical relevance: IP‐10 may be considered as a promising biomarker for the differentiation between MF and other skin conditions.
Bending of nanowire–flexible substrate assemblies integrated via direct synthesis methods
Authors: Rodgers Justin , Edel Julia , Rivera Johan , Englander Ongi 
Published: June 2011

AbstractNanowires are successfully synthesized directly onto two types of flexible substrates, Kapton and silicone. Reduced temperature catalyst‐assisted chemical vapor deposition techniques enable the direct integration. The mechanical properties of these assemblies are evaluated using bending tests where tensile or compressive strains are applied to the samples. Substrate‐dependent nanowire properties, thin film formation, and failure of the integrated assemblies are observed. magnified image
Image: Failure of a germanium nanowire (GeNW) array synthesized on a flexible substrate once subjected to compressive strains.
Orientation Relationship between the TRIP Steel Substrate and the ZrO2 thin Film
Authors: Poklad A. , Klemm V. , Schreiber G. , Rafaja D. , Abendroth B. , Haverkamp M. 
Published: June 2011

AbstractDistinct orientation relationships between face‐centred cubic austenite (γ‐Fe) and cubic c‐ZrO2 were found and assigned using high‐resolution transmission electron microscopy (HRTEM) that was complemented by the Fast Fourier Transform (FFT) of the HRTEM micrographs. These orientation relationships were described as [110] γ‐Fe || [111] c‐ZrO2 and ($1{\bar {1}}1$) γ‐Fe || ($02\overline {2} $) c‐ZrO2. They imply the heteroepitaxial growth of the counterparts that improved substantially the adhesion between γ‐Fe and c‐ZrO2. The analysed specimens were prepared by magnetron sputtering from an unstabilized ZrO2 ceramic target in argon atmosphere on TRIP steel substrate. The microstructure of the thin zirconia films was analysed using glancing‐angle x‐ray diffraction (GAXRD), scanning electron microscope (SEM) and TEM.
Experimental analysis of innovative dissipative bolted double split tee beam‐to‐column connections
Authors: Latour Massimo , Piluso Vincenzo , Rizzano Gianvittorio 
Published: June 2011

AbstractThe use of double split tee (DST) connections in seismic zones may represent an interesting solution from the technological point of view because of easy substitution of damaged components after destructive seismic events. But despite this significant advantage, partial‐strength DST connections have found limited application so far because their use requires that tee elements are characterized by high plastic deformation capacity to assure adequate energy dissipation. Therefore, in order to overcome the limitations to the energy dissipation capacity of traditional DST connections due to significant pinching of hysteresis loops and aiming at the development of a structural solution able to withstand severe seismic events without damage to members and connecting elements, this paper proposes two different innovative dissipative solutions for DST connections and investigates their performance by means of an experimental programme whose results are presented and discussed.
Review of steel buckling‐restrained braces
Authors: Della Corte Gaetano , D’Aniello Mario , Landolfo Raffaele , Mazzolani Federico M. 
Published: June 2011

AbstractBuckling‐restrained braces (BRBs) are a relatively recent development in the field of seismic‐resistant steel structures. Their distinctive feature is the non‐buckling behaviour typically achieved by encasing a steel core in a concrete‐filled tube, but alternatives have been proposed. Restraining the brace from buckling enhances ductility significantly and allows a symmetric response under tension or compression forces. The design of BRB frames must consider a number of specific issues that are currently not covered by European standards and regulations. This paper presents a brief summary of the most recent research results and attempts to summarize the basic design issues as they emerge from both research and the codification rules of non‐European Countries. Conclusions are drawn regarding future research required to address the development of design rules in Europe, too.
Toughness requirements for plastic design with structural steel
Authors: Feldmann Markus , Eichler Björn , Schäfer Dirk , Sedlacek Gerhard , Vayas Ioannis , Karlos Vasilis , Spiliopoulos Andreas 
Published: June 2011

AbstractThis report deals with the results of an international research project ”Plastotough”, the aim of which is to discover the toughness requirements for structural steel to make it suitable for plastic design for ”static loads” and for loads that vary over time, as from seismic events. These toughness requirements should be specified as the Charpy energy value KVUS in the upper shelf domain of the toughness‐temperature diagram and as the extension of KVUS to the minimum temperature TUS for which it is still valid. This report, after recalling empirical rules for toughness requirements, first gives the methodological tools from fracture mechanics and damage mechanics to tackle the task. The use of these tools is connected with experimental tests on specimens that are detailed such that they are representative of local (from notch effects) and global (from plastic hinges with plastic rotations) ductility demands. The steels for the test specimens were taken from regular ”European production”; rolled sections in particular exhibit a quality level that far exceeds the minimum requirements of EN 10025. For the steels considered, it was proved that they follow the EricksonKirk correlation between the T27J values and TUS so that they can be classified in a group of steels together with pressure vessel steels and naval steels. All strain requirements from local strain raisers and from global plastic rotations could be met on the safe side using the fracture mechanics and damage mechanics resistances determined for these steels. For seismic design in particular it could be shown that the cracking associated with ultra‐low‐cycle fatigue is not relevant for buildings if the behaviour factor q is determined using reasonable limits for inter‐storey drift. Therefore, the key conclusion is that for the safe use of plastic design in ”static” and ”seismic” situations, the elevated level of toughness quality of steels usually available from European producers must be used. To this end it is recommended to specify these steels either in the context of brandnames or by additional options in EN 10025.
The Modern Teahouse — a contemporary nomadic building
Authors: Schmid Gerd 
Published: June 2011

AbstractThe Modern Teahouse is a small nomadic building formTL designed together with Kengo Kuma. It is used for Japanese tea ceremonies in the garden of the ”Museum für Angewandte Kunst” in Frankfurt am Main. The mattress‐like structure can be erected and taken down by just four people. The internal air pressure of this single‐chamber air house is 1500 Pa — only 1 % that of a high‐pressure beam but five times higher than a normal pneumatic structure. The Modern Teahouse ”wanders” between the entrance hall of the museum and a little hill in the museum garden. When it is not in use, it is packed away on a trolley.
Assessing bee species richness in two Mediterranean communities: importance of habitat type and sampling techniques
Authors: Nielsen Anders , Steffan‐Dewenter Ingolf , Westphal Catrin , Messinger Olivia , Potts Simon G. , Roberts Stuart P. M. , Settele Josef , Szentgyörgyi Hajnalka , Vaissière Bernard E. , Vaitis Michalis , Woyciechowski Michal , Bazos Ioannis , Biesmeijer Jacobus C. , Bommarco Riccardo , Kunin William E. , Tscheulin Thomas , Lamborn Ellen , Petanidou Theodora 
Published: June 2011

AbstractThe decline of bees has raised concerns regarding their conservation and the maintenance of ecosystem services they provide to bee‐pollinated wild flowers and crops. Although the Mediterranean region is a hotspot for bee species richness, their status remains poorly studied. There is an urgent need for cost‐effective, reliable, and unbiased sampling methods that give good bee species richness estimates. This study aims: (a) to assess bee species richness in two common Mediterranean habitat types: semi‐natural scrub (phrygana) and managed olive groves; (b) to compare species richness in those systems to that of other biogeographic regions, and (c) to assess whether six different sampling methods (pan traps, variable and standardized transect walks, observation plots and trap nests), previously tested in other European biogeographic regions, are suitable in Mediterranean communities. Eight study sites, four per habitat type, were selected on the island of Lesvos, Greece. The species richness observed was high compared to other habitat types worldwide for which comparable data exist. Pan traps collected the highest proportion of the total bee species richness across all methods at the scale of a study site. Variable and standardized transect walks detected the highest total richness over all eight study sites. Trap nests and observation plots detected only a limited fraction of the bee species richness. To assess the total bee species richness in bee diversity hotspots, such as the studied habitats, we suggest a combination of transect walks conducted by trained bee collectors and pan trap sampling.
Effect of Varietal Differences on Composition and Thermal Characteristics of Avocado Oil
Authors: Yanty N. A. M. , Marikkar J. M. N. , Long K. 
Published: June 2011

AbstractA study was carried out to compare the characteristics of oils from three Malaysian avocado (Persea americana) cultivars with those of the oil from the Australian Hass avocado variety. Oil samples extracted from matured‐avocado fruits were assessed for basic physico‐chemical parameters, fatty acid and triacylglycerol (TAG) compositions, and melting and solidification characteristics. In comparison to Hass variety, the oil contents of the local avocado cultivars were significantly lower and found to be mostly in semisolid form. As a common feature, oils of both local cultivars and Hass variety are found to have oleic acid as the most dominant fatty acid. However, there are differences between them with regard to the proportional distributions of palmitic and linoleic acids. While the major TAG of local avocado cultivars were POO, followed by POL, OOO and PPO, the dominant TAG of Hass variety were OOO, followed by PPO, OOL and POL. Due to these differences in fatty acid and TAG distributional patterns, the oils of local avocado cultivars are found to possess iodine value, slip melting point, melting and solidification characteristics, which are completely different from those of the imported Hass avocado variety.
II Freestanding Sculpture
Authors: Sparkes Brian A. 
Published: June 2011

In 2003, the 150th anniversary of the birth of Adolf Furtwängler was celebrated with an exhibition in his home town of Freiburg, accompanied by a memorial volume and an international symposium. His influence on Greek sculptural studies through emphasis on the search for individual craftsmen via Roman copies continues, particularly in Germany and the USA. The mystery of the ‘whodunit’ is still strong, and the cult of the creative artist is too deeply ingrained in our own thinking to be totally jettisoned for other, more impersonal considerations. There is such an innate desire to link a work of art to a name that, over the years, there has been a tendency to concentrate on the few names that have been vouchsafed to us from classical texts and the random discovery of inscriptions carrying the names of sculptors (the earliest dating from c.600 BC). Recent major exhibitions have centred round the sculptors Polykleitos, Praxiteles, and Lysippos, and there are studies that have highlighted the conjectural personalities of these and other named artists. Pollitt has declared his allegiance to this traditional approach:Those who believe that ancient Greek art, like that of all other places and times, was the result of the insights, instincts, taste and choices of individual artists and not the product of impersonal, mechanical, evolutionary forces have good reason for wanting to carry on the tradition of Furtwängler.