bluuebunny/crossref_metadata_2025_split huggingface dataset:
REST corepressor (CoREST) repression induces phenotypic gene regulation in advanced osteoarthritic chondrocytes
Authors: Xiao Jun , Li Tao , Wu Zhihong , Shi Zhanjun , Chen Jianting , Lam Stephen K.L. , Zhao Zandong , Yang Lanbo , Qiu Guixing 
Published: May 2010

AbstractAlternations in cartilage chondrocyte phenotype characteristic by the decreased type II collagen and aggrecan together with increased type X collagen synthesis serve as a beacon for osteoarthritis progression. However, little is known about the underlying molecular mechanisms. The current study seeks to discover molecules that involved in osteoarthritic chondrocytes phenotype regulation. Differential proteomics was generated with two‐dimensional gel electrophoresis between normal articular cartilage (NAC) and advanced osteoarthritic cartilage (AOC). Those differentially expressed proteins were identified by mass spectrometry. The down‐regulation of a neuronal silencer, the REST corepressor (CoREST) in AOC, was verified by Western blot. CoREST silencing was performed in primarily cultured NAC chondrocytes with specific siRNA to reveal the possible involvement of CoREST repression in chondrocyte phenotypic genes modulation. Ninteen differentially expressed proteins were screened and identified. Among these proteins, CoREST, HHL, and zinc finger protein 155 were estimated to be possible gene modulators. CoREST protein level was verified to be down‐regulated by 69.5% (p < 0.001) in AOC. In response to CoREST knock‐down by 64.8% (p < 0.001) in NAC chondrocytes, the gene expression level of the chondrocyte terminal differentiation marker gene, collagen X was found to be up‐regulated by 40.0% (p = 0.017), whereas the chondrocyte differentiation phenotypic genes, collagen II and aggrecan were down‐regulated by 71.4% (p < 0.001) and 57.6% (p < 0.001), respectively. The results indicate that the silencing of CoREST by siRNA transfection in NAC may reflect CoREST repression in AOC, which results in phenotypic genes modulation and suggests a homeostatic role of this transcription factor in articular chondrocyte. © 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 28:1569–1575, 2010
The quadriga effect revisited: Designing a “safety incision” to prevent tendon repair rupture and gap formation in a canine model in vitro
Authors: Giambini Hugo , Ikeda Jun , Amadio Peter C. , An Kai‐Nan , Zhao Chunfeng 
Published: May 2010

AbstractLoss of experimental animals due to tendon repair failure results in the need for additional animals to complete the study. We designed a relief proximal to the flexor digitorum profundus (FDP) tendon repair site to serve as a “safety incision” to prevent repair site ruptures and maximize safety incision‐to‐suture strength. The FDP tendons were dissected in 24 canine forepaws. The 2nd and 5th tendons were lacerated at the proximal interphalangeal joint level and sutured using a modified Kessler technique and peripheral running suture. Tendon width was measured where the FDP tendon separates into each individual digit and a safety incision, equal to the 2nd and 5th tendon widths, was performed 3, 4, or 5 mm (Groups 1, 2, and 3) proximal to the separation. The tendons were pulled at a rate of 1 mm/s until either the “safety incision” ruptured or the repair failed. There was no gap formation at the repair site in Groups 1 and 2. However, all Group 3 tendons failed by repair site rupture with the safety incision intact. An adequate safety incision to protect repair gap and rupture and maintain tendon tension for the FDP animal model should be about 4 mm from where the FDP tendon separates. © 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 28:1482–1489, 2010
Compact monopole antenna with branch strips for WLAN/WiMAX operation
Authors: Ku Chia‐Hao , Li Lung‐Kun , Mao Wei‐Lung 
Published: May 2010

AbstractThis study proposes a novel and compact design for a printed monopole antenna using branch strips for wireless applications.The antenna consists of three strips and occupies only a small area of 14 × 9.5 mm2. By proper selection of dimensions as well as arrangement of the strips, desired resonant modes excited at 2.46/3.6/5.3 GHz with frequency responses of input impedance of less than −10 dB can be achieved. In addition, good agreement is obtained between the simulation and the experiment. Also, the compact design of the antenna, which has enough impedance bandwidth, near‐omnidirectional patterns and moderate gains, makes the antenna suitable for wireless local area network and worldwide interoperability for microwave access operations. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1858–1861, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25293
Dual band electromagnetic band gap resonator antenna to feed a reflector antenna
Authors: Kanso A. , Chantalat R. , Thevenot M. , Monediere T. , Arnaud E. , Jecko B. 
Published: May 2010

AbstractThis article describes a dual band electromagnetic band gap antenna that is suitable to feed a reflector antenna for space applications. The main objectives consist in the same phase center and the same radiations patterns for the two fréquency bands. The principle, the design, and the performances are given in this article. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1750–1756, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25294
Integrated wide‐narrow band antenna for switched operation
Authors: Kelly James R. , Hall Peter S. 
Published: May 2010

AbstractCognitive Radio (CR) is a new paradigm which promises to yield an improved quality of service for the user, whilst also enabling more intensive use of the available radio frequency spectrum. Some experts believe that CR will require both wide and narrowband antennas for performing the search and communication function. This article helps to address this need by providing a new antenna that can be reconfigured between a narrow and ultrawide impedance bandwidth. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1705–1707, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25298
A novel folded slot antenna for UWB applications
Authors: Chiu Chien‐Wen , Li Chia‐Shan , Yang Chih‐Hsiang 
Published: May 2010

AbstractThis letter presents a compact and novel folded antenna with curved slots for ultra‐wideband (UWB) applications.The proposed antenna originates from an antenna, which consists of a pair of symmetrically curved radiating slots fed by a CPW transmission line. This pair of planar curved slots is symmetrically folded in relation to the central feeding lines so that the size is shrunk to one half of the original geometric size. Using the HFSS software, the simulated results shows that the folded type antenna still preserves the UWB transmission characteristics. The impedance bandwidth, radiation pattern, and radiation gains of this shrunken UWB antenna are investigated and further measurement are performed to verify its UWB characteristics. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1872–1877, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25299
Analysis and design of class‐E power amplifier using equivalent LDMOS model with drift region effect
Authors: Xu Yingjie , Zhu Xiaowei , You Changjiang 
Published: May 2010

AbstractIn this article, an LDMOS class‐E power amplifier is analyzed based on the equivalent transistor model considering drift region effect.In the analysis, nonzero switch‐on resistance, parasitic feedback capacitance, and finite drain DC feed inductance are taken into account, so as to present an optimized design technique. A class‐E power amplifier at 1 GHz is designed and simulated using the numerical results derived from the theoretical analysis. Freescale's MRF21010 is selected as the LDMOS device to further validate the design approach in experiment. Testing results show that drain efficiency of 70.4%, PAE of 66.2%, and output power of 38.28 dBm are observed with a 12 V drain supply voltage and a 26 dBm input power, which agrees with simulation data. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1836–1842, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25301
Development of an active retrodirective antenna with frequency conversion
Authors: Flores‐Leal R. , Jardon‐Aguilar H. , Tirado‐Mendez A. 
Published: May 2010

AbstractThe development of an active retrodirective antenna involving frequency conversion stages is presented.This retrodirective array of printed dipoles and regular commercial components is designed to operate at the GSM1900 band. Experimental measurements of monoestatic and biestatic responses are given, showing very good performance for a small retrodirective array. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1803–1807, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25303
Low‐profile radio frequency identification tag antenna using a trapezoid patch mountable on metallic surfaces
Authors: Chen Horng‐Dean , Tsao Yu‐Hung , Kuo Che‐Yang 
Published: May 2010

AbstractA trapezoid patch antenna, designed for ultra high frequency band radio frequency identification tag mountable on metallic surfaces, is presented in this article. The proposed antenna has a simple and low‐profile (0.8 mm thick) structure. The impedance matching can be easily achieved by adjusting the upper‐side width and the height of the trapezoid patch. The reading range of the proposed antenna is verified by calculation and measurement, which shows good agreement. Varying antenna size can provide applicable reading range to suit different applications. The results obtained show that the proposed antenna can work efficiently in free space and on metallic objects. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1697–1700, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25310
Design for a linear voltage‐controlled 360°‐analog phase shifter
Authors: Xiao M. X. , Cheung S. W. , Yuk T. I. 
Published: May 2010

AbstractThe article presents the design of a linear voltage‐controlled 360° analog phase shifter operating at 2.2 GHz. It is a reflection‐type with a simple and compact structure, using a λ/4‐coupled‐line coupler with the output ports terminated with identical parallel‐tuned varactor‐diode circuits for a full 360°‐phase shift. Formulas are derived for making use of the dimensions of the transmission lines to linearize the phase shift against the control voltage. Simulation and measurement results on the linearity and insertion loss are presented. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1821–1825, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25314
Dynamic modulated Gaussian pulse propagation within the double PANDA ring resonator system
Authors: Uomwech K. , Sarapat K. , Yupapin P. P. 
Published: May 2010

AbstractWe propose the interesting results of light pulse propagation within a double PANDA ring resonator system.We use the technique of finite difference time domain that is implemented by the scientific programming method known as OPTI‐WAVE PROGRAMMING to simulate and analyze the dynamic wave forms of propagating light pulse within the desired system. By using the input Gaussian pulse with center wavelength at 1550 nm and the other practical parameters into the system, results obtained have shown that the multiwavelength light sources can be generated and achieved, and the dynamic behaviors of light pulses propagating within the system can be seen. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1818–1821, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25315
A novel CMOS distributed receiver front‐end for wireless ultrawideband receivers
Authors: Guan Xin , Nguyen Cam 
Published: May 2010

AbstractAn ultrawideband CMOS distributed receiver front‐end utilizing cascade gain cell structure is designed in Jazz 0.18‐μm CMOS process.The proposed distributed front‐end, fully integrating a low‐noise amplifier (LNA) and mixer together, demonstrates 11.5–14 dB gain, 5–6.5 dB noise figure and more than 9‐dB RF/LO return loss over 2–17 GHz with a fixed IF frequency of 500 MHz and LO power of 5 dBm. The entire circuit occupies 1.7 × 1.0 mm2 including on‐wafer pads and consumes 170 mA from 1.8‐V voltage supply. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1790–1792, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25316
Performances of MR‐preconditioned fast MoM techniques
Authors: De Vita P. , De Vita F. , Freni A. , Pirinoli P. , Vipiana F. , Vecchi G. 
Published: May 2010

AbstractIn this article, we describe the integration of a multiresolution (MR) approach into a few fast factorization methods for the method‐of‐moments (MoM), with specific attention to the analysis of large nonperiodic arrays. The MR approach allows a physics‐based preconditioning scheme (as opposed to algebraic preconditioners) that requires a low‐memory occupation and a low‐computational cost for its generation and application to fast factorizations. In particular, we present a theoretical and experimental analysis that shows that the complexity of the resulting fast‐MR algorithm is still of the order of the original fast factorization method. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1719–1724, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25320
Dual ISM‐band gap‐filler microstrip antenna with two Y‐shaped slots for satellite internet service
Authors: Kim Byoungchul , Ryu Joongyu , Choo Hosung , Lee Hojin , Park Ikmo 
Published: May 2010

AbstractThis article describes a dual‐band gap‐filler microstrip antenna with nearly equal gain and similar radiation patterns in the 2.4‐GHz and 5.8‐ GHz ISM satellite Internet service bands.The proposed antenna has two Y‐shaped slots on the microstrip patch and is fabricated on an RO4003 substrate with a dielectric constant of 3.38 and a thickness of 0.508 mm. The dimensions of the antenna are 50 mm × 47.5 mm × 6.5 mm, and it is fed by a coaxial cable. The measured bandwidths of the antenna are 2.376–2.492 GHz and 5.425–6.055 GHz for a voltage standing wave ratio of less than 2. At 2.42 GHz, the antenna has a broadside radiation pattern with a half‐power beamwidth (HPBW) of 70° in the x‐z plane and 80° in the y‐z plane. At 5.75 GHz, it has a HPBW of 65° in the x‐z plane and 75° in the y‐z plane. The measured gain is 8.37 dB in the 2.4‐GHz ISM band and 8.38 dB in the 5.8 GHz ISM band. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1825–1827, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25325
Composite right/left handed transmission line based on open slot split ring resonator
Authors: Karthikeyan S. S. , Kshetrimayum R.S. 
Published: May 2010

AbstractIn this article, an open slot split ring resonator (OSSRR) is introduced to realize a composite right/left handed (CRLH) transmission line structure in microstrip technology.The CRLH line is synthesized by etching OSSRR in the ground plane and interdigital capacitor in the microstrip line. Simulated and measured scattering parameter of the structure is presented. The dispersion characteristic of proposed structure is also shown. The proposed structure is 15% smaller than the conventional complementary split ring resonator structure. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1729–1731, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25330
Wideband spurious suppression of dual‐mode band‐pass filter using defected cascaded resonators
Authors: Wu Hung‐Wei , Weng Min‐Hang , Hung Cheng‐Yuan , Yang Ru‐Yuan 
Published: May 2010

AbstractThis article presents a new design of wideband spurious suppression of dual‐mode band‐pass filter (BPF) using defected cascaded resonators (DCRs).The pattern of the DCRs is similar with that of the conventional low‐pass stepped impedance resonator, whereas it is etched in the ground. It is verified that adding DCRs in planar BPF can effectively provide a very wideband range for spurious suppression. The dual‐mode BPF is designed at center frequency (f0) of 5.2 GHz, and has a very wideband spurious suppression below 30 dB as far as over 5f0 when using the DCRs. The measured results have a good agreement with the EM simulated results. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1694–1697, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25332
Optimization of output matching network for class F power amplifier according to envelope in the envelope elimination and restoration transmitter
Authors: Lee Chongmin , Seo Chulhun 
Published: May 2010

AbstractThis article presents the design and optimization of output matching network according to envelope for class F power amplifier (PA), which is to apply to envelope elimination and restoration (EER) transmitter.In this article, to increase the PAE of class F PA, which applies to EER transmitter, the varactor diode has been used on output matching network. As envelope changes, it optimizes constitution of harmonic trap that is short circuit in second‐harmonic and is open circuit in third‐harmonic. When drain voltage changes from 25 V to 30 V, some percentage is improved in the PAE. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1890–1893, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25335
A 3‐bit phase shifter with high‐power capacity based on composite right/left‐handed transmission line
Authors: Zhang J. , Cheung S.W. , Yuk T. I. 
Published: May 2010

AbstractA miniaturized 3‐bit phase shifter with high power‐handling capacity is designed based on the use of a single composite right/left‐handed transmission line (CRLH‐TL) unit cell. PIN diodes mounted on the fingers of the CRLH‐TL unit cell are used as switches to control the phase shift of the input signal. Different phase shifts are achieved by using different states of the switches determined by the 3 controlling bits of the phase shifter. The surface current flowing through each of the switches is only a fraction of the total current through the device, so the power handled by each of the PIN diodes is much smaller than the total power through the device. The phase shifter is designed to provide a phase‐shift range from 0° to 157.5° at a step 22.5° and operate in the frequency band from 9 to 10 GHz. Simulation results and measurement results of the prototype agree closely and show that the phase shifter has much higher power‐handling capacities than that of the PIN diode and low insertion losses across the operating frequency band. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1778–1782, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25346
A dual continuous‐ and burst‐mode clock recovery module utilizing fiber dispersion
Authors: Yan Minhui , Chen Chih‐Hung , Xu Qing‐Yang , Huang Wei‐Ping 
Published: May 2010

AbstractA clock recovery module suitable for both burst‐ and continuous‐mode optical receiver utilizing fiber dispersion is experimentally demonstrated for the first time. The module utilizes the nonlinear characteristics of the received nonreturn‐to‐zero (NRZ) optical signals experiencing the fiber dispersion and the photo‐detection to extract the clock information. Experiments demonstrated its functionality in both operation modes up to 9 Gbps. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1747–1750, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25347
Gain factor of horn array feed offset parabolic cylindrical reflector antenna for spatial power combining
Authors: Xie Z. M. , Zhang R.X. 
Published: May 2010

AbstractA study on the horn array feeding offset parabolic cylindrical reflector antenna for spatial power combining is presented. The calculations based on the aperture integral method are agreed well with the measurements. The relationship between the gain factor and the dimensions of the antenna is analyzed. The optimal dimensions and orientation of the feeding horn as well as the optimal spread angle of the reflector are given. It is revealed that the gain factor of the antenna with anE_plane array feed is higher than that of the antenna with anH_plane array feed. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1742–1747, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25348
A novel band rejection filter of transmission line type using double spur‐lines
Authors: Eom Soon‐Young , Hong Ic‐Pyo 
Published: May 2010

AbstractThis letter presents a novel band rejection filter (BRF) using a pair of spur‐lines or double spur‐lines with an opposite direction, which is embedded in a transmission line. The slot length (L1) of double spur‐lines determines a rejection band and the distance (L2) between the end points of each spur‐line determines the position of a pass band, which is at the left or right side of a rejection band, respectively. That is, if L2 is shorter than L1, the right side of a pass band can be properly suppressed, otherwise if L2 is longer than L1, the left side of a pass band can be suppressed. Two novel kinds of BRFs were realized at Ku‐band using soft Teflon substrate to verify the validity of the proposed structure. The measured performance was well agreed with the simulated one. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1880–1883, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25351
Characteristics of two‐segment lensed fiber collimator
Authors: Lin Yu‐Cheng , Chang Chia‐Hao 
Published: May 2010

AbstractA two‐segment lensed fiber collimator using gradient index fiber (GIF) of 140 μm diameter spliced to a coreless fiber (CLF) of 125 μm, and a single mode fiber (SMF) is demonstrated.The CLF and GIF are treated as a beam expander and lens, respectively. The complex beam parameter method and ABCD law are applied for theoretical analysis. Both numerical and experimental data are presented for optical characterization of the divergence angle and insertion loss in lateral and axial displacement of the device. The divergence angle of 1.5 degrees is obtained for the wavelength of 1.31 μm at the GIF length of 180 ± 5 μm and the CLF length of 350 μm. The variation of insertion loss due to lateral and axial displacement shows good agreement with theory. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1846–1848, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25353
High‐performance UWB filter with a controllable notched band
Authors: Chen Chun‐Ping , Iinuma Ryouhei , Ma Zhewang , Anada Tetsuo 
Published: May 2010

AbstractThis article presents a design of a high‐performance ultra‐wideband (UWB) bandpass filter with a controllable notched band. Firstly, a UWB filter consisting of a stepped‐impedance resonator (SIR) and two shunt short‐circuited stubs is synthesized. Then, a narrow controllable notched band is introduced by a coupled external SIR. To be highlighted as an attractive advantage, as the characteristics of the UWB filter are not deteriorated by the placement of the external resonator, no further adjustments is needed for the synthesized UWB filter in this design. As an example, an (Federal Communications Commission) FCC UWB filter with a WLAN notch band is designed, simulated, and fabricated. A good agreement between the measured results and predicted ones validates the newly proposed design scheme and the filter prototype. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1842–1846, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25354