bluuebunny/crossref_metadata_2025_split huggingface dataset:
WWAN/LTE Handset Antenna with Shaped Circuit Board, Battery, and Metal Midplate
Authors: Wong Kin‐Lu , Chang Hsuan‐Jui , Chu Fang‐Hsien , Li Wei‐Yu , Wu Chun‐Yih 
Published: July 2013

ABSTRACTAn onboard printed WWAN/LTE antenna of simple structure disposed in a small clearance of 8 × 36 mm2 in the ground plane of shaped circuit board in a slim handset is presented. The shaped circuit board has a large rectangular notch such that the battery of the handset can be embedded therein to decrease the thickness of the handset. It is shown that, compared to the traditional simple circuit board, the shaped circuit board can lead to much enhanced bandwidth of the antenna disposed thereon. This is mainly because stronger surface currents on the ground plane of the shaped circuit board can be excited, which greatly helps improve the operating bandwidth of the antenna disposed thereon. By properly short‐circuiting the metal enclosing of the battery and the metal midplate that can be used to provide the handset with structural support, stronger excited surface currents on the ground plane of shaped circuit board can still be obtained. The proposed design makes a simple, small‐size printed inverted‐F antenna capable of providing two wide operating bands to cover the GSM850/900 bands (824–960 MHz) and GSM1800/1900/UMTS/LTE2300/2500 bands (1710–2690 MHz). Further, the proposed design can provide good antenna efficiency and meet the specific absorption rate regulations of less than 1.6 W/kg for 1‐g head tissue as well. Detailed results of the proposed design are presented and discussed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2254–2261, 2013
A Novel Optical Fiber Temperature Sensor Based on Fabry‐Perot Cavity
Authors: Zhao Yong , Wang Dan , Lv Riqing 
Published: July 2013

ABSTRACTA novel fiber optic Fabry‐Perot (F‐P) temperature sensor has been developed based on anhydrous ethanol as the sensitive medium in the cavity. The theory and principle of the novel fiber optic F‐P sensor are presented. In this article, the temperature‐sensitive property of anhydrous ethanol was studied by experiments, and it could archive a good linearity relative to the temperature. Then, anhydrous ethanol was filled in the cavity of F‐P sensor as the sensitive medium. With the property of the temperature‐controlled refractive index, the properties of the novel fiber optic F‐P temperature sensor were studied through the experiments. The fiber optic F‐P sensing probe was fabricated and the experiments were carried out to prove the feasibility of the temperature measurement. And, it obtained a sensitivity of 1.56 nm/°C when the cavity length was 80.1 µm. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2487–2490, 2013
Integration of a Micro Fabry‐Perot Cavity and a Fiber Bragg Grating Sensor for Simultaneous Measurement Of Stress And Temperature
Authors: Li Jiao‐Yang , Huang Xu‐Guang , Cheng Guang‐Ming , Chen Luan‐Xiong , Jin Xue‐Mei 
Published: July 2013

ABSTRACTWe report the realization of a fiber sensor for simultaneous measurement of stress and temperature based on the integration of a fiber Bragg grating (FBG) and a micro external Fabry‐Perot (F‐P) cavity constructed with a thin film coated on a fiber end. The Bragg wavelength shift is used to measure stress while the wavelength shift of the F‐P interference fringes is traced for determining the temperature, which can also compensate the thermal stress of FBG induced by temperature change. A temperature sensitivity of ∼0.2 nm/°C and a stress sensitivity of 8.11 × 10−3 nm/N with good stability can be achieved. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2440–2444, 2013
Numerical Analysis of the Supply Voltage of a Switching Mode RF CMOS Power Amplifier to Enhance Its Efficiency
Authors: Hwang Hoyong , Seo Donghwan , Lee Changhyun , Park Changkun 
Published: July 2013

ABSTRACTIn this work, we analyzed numerically the effects of an interstage capacitor related to the power‐added efficiency of a power amplifier. In particular, we calculated the power consumption values induced by the on‐resistances and short‐circuit current of the class‐D‐type driver‐stage. After analyzing the results, the interstage capacitor between the driver and the power stages was removed to improve the overall efficiency. By removing the interstage capacitor, the supply voltage for the driver stage can be decreased compared to a normal power amplifier. The power consumption at the on‐resistance of the driver stage can be reduced and the power consumption induced by the short‐circuit current can be reduced. Additionally, we measured the power consumption at the driver stages to verify the calculated results. In the experimental results, we noted improved efficiency of the proposed amplifier, while its output power was nearly identical to that of a normal amplifier. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2479–2484, 2013
Switched Delay Line Reconfigurable L‐Band Filter with High Out‐of‐Band Suppression
Authors: Su Tao , Zhang Li‐Juan , Wang Sheng‐Jie , Li Zhi‐Peng , Zhang Yong‐Liang 
Published: July 2013

ABSTRACTA switched delay line reconfigurable filter with high out‐of‐band suppression using double‐behavior resonator (DBR) is presented. The novel filter has features of higher stopband rejection and easy processing compared to the conventional one. The DBR resonator can produce transmission zeros, which obviously improves the out‐of‐band suppression. The prototype of the filter operating at 1G/1.3G/1.6G with 50‐dB suppression is designed and fabricated. The simulated and measured results show good agreement. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2438–2440, 2013
Electromagnetic Scattering Analysis of A Conductor Coated by Thin Bi‐Isotropy Media
Authors: Tao Shifei , Ding Dazhi , Chen Rushan 
Published: July 2013

ABSTRACTIn this article, an efficient numerical approach for the electromagnetic scattering analysis of a conductor coated by thin bi‐isotropy medias is proposed. Only the induced current on the conductor is needed to be discretized as the unknowns, the volume electric/magnetic current densities in dielectric layer are all represented in terms of current densities on the metal surface. For the model of the conductor coated by bi‐isotropy media, the electric field integral equation is presented, and the multilevel fast multipole method is utilized to speed up the matrix vector product after these equations converted to matrix equations with Galerkin's test. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2354–2358, 2013
Novel Current‐Reuse Current‐Mirror and Its Application on 2.4‐GHz Down‐Conversion Mixer
Authors: Jin Jie , Yu Fei 
Published: July 2013

ABSTRACTIn this article, a new CMOS low voltage low power high‐linearity current‐reuse current‐mirror‐switch (CR‐CMS) mixer based on chartered 0.18‐µm CMOS technology for 2.4‐GHz IEEE 802.11b WLAN receiver applications is presented. The new CR‐CMS technical is proposed and used in the mixer, which makes the mixer different from the traditional Gilbert mixer. Because of the new CR‐CMS technique used in the mixer, the postlayout simulation results demonstrate that the CR‐CMS mixer can provide about 8.5‐dB conversion gain with a local oscillator power of −5 dBm, while the power consumption is only 1.16 mW with a 1 V supply voltage, and the input‐referred third‐order intercept point of the mixer is 16.3482 dBm. The chip area including test pads is only 0.33 × 0.44 mm2. Comparing with the previously reported CMOS mixers, the proposed CR‐CMS mixer has the advantages of lower supply voltage, lower power consumption, higher linearity, and smaller chip area than most of the other reported work. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2520–2524, 2013
0.013 mm2 and Low‐power 10 Gb/s Transimpedance Amplifier for Short‐reach Optical Interconnects
Authors: Nguyen Nga T. H. , Ukaegbu Ikechi Augustine , Sangirov Jamshid , Cho Mu Hee , Lee Tae Woo , Park Hyo Hoon 
Published: July 2013

ABSTRACTA transimpedance amplifier (TIA) has been designed and implemented for short‐reach optical interconnect applications. The TIA, which is based on the regulated cascode technique, is implemented with a bandwidth enhancement technique, where capacitive degeneration and resistive feedback has been exploited in a 0.13 μm CMOS technology, while maintaining a small chip area and low power consumption. The TIA showed a measured transimpedance gain of 51dBΩ and works up to 10 Gb/s in the presence of 0.3 pF input photodiode capacitance. It occupies an active area of 0.013 mm2 with a power dissipation of 4.3 mW. The proposed TIA achieved high gain‐bandwidth product per DC power (GBP/DC) figure of merit of 589 GHzΩ/mW with an input referred noise of 20 pA/√Hz. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2484–2487, 2013
Novel Multiband Matching Network Using Resonators for Multiband Power Amplifier Applications
Authors: Wang Zhebin , Park Chan‐Wang 
Published: July 2013

ABSTRACTThis article presents a novel multiband matching network (MN) consisting of resonators and conventional L‐type MNs. The simple and independent matching procedure for each operating frequency band is presented. One concurrent dual‐band and tri‐band power amplifiers with low cost and compact size are designed to demonstrate this multiband method. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2469–2475, 2013
Compact Printed Antennas for Triple Band‐Notched UWB Using Cmlsrrs And Spiral Resonators
Authors: Kim Jang‐Yeol , Kim Nam , Lee Seungwoo , Shin Kwan‐Ho 
Published: July 2013

ABSTRACTCompact printed ultrawideband (UWB) antennas with triple band‐notched characteristic are proposed. The designed antennas consist of a rectangular shaped patch, complementary meander line split ring resonators (CMLSRRs), and a spiral resonator are inserted in the radiation patch, feed line, and ground plane aimed at WiMAX band, WLAN 5 GHz, and ITU 8 GHz. Therefore, techniques of their antennas can be solved the interference between UWB systems and other wireless systems. All of antennas achieved a wide bandwidth of UWB frequency range for VSWR less than 2, except for triple notched‐bands. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2265–2269, 2013
Bait spray for control of European cherry fruit fly: an appraisal based on semi‐field and field studies
Authors: Böckmann Elias , Köppler Kirsten , Hummel Edmund , Vogt Heidrun 
Published: July 2013

AbstractBACKGROUNDThe European cherry fruit fly, Rhagoletis cerasi, is the major insect pest of sweet and tart cherries. Its management is becoming increasingly difficult in many countries as formerly effective but broad‐spectrum insecticides are removed from the market. With the objective of identifying suitable and environmentally safe alternatives, we investigated bait sprays containing two families of plant‐derived insecticides: azadirachtins (NeemAzal‐T® and NeemAzal‐T/S®) and pyrethrins (Spruzit Neu®).RESULTSIn 12 semi‐field trials conducted within cages, weekly applications of 0.0001 or 0.0005% neem in a bait formulation effectively reduced fruit infestation. However, addition of 0.000125–0.001% pyrethrins did not improve the efficacy of the neem formulations, and when used alone pyrethrins were less effective than neem alone. Two years of field trials were also conducted within orchards wherein an insecticidal barrier of treated trees excluded immigration of fertile R. cerasi from elsewhere. In blocks treated with 0.0005% neem in a bait formulation, we observed 94% (2011) or 86% (2012) reduction of fruit infestation over control blocks.CONCLUSIONBait sprays containing neem are a promising alternative for the management of R. cerasi, especially where the risk of immigration of fertilized females is low, as in isolated orchards or as part of area‐wide treatments. © 2013 Society of Chemical Industry
A novel glucagon‐like peptide 1 peptide identified from Ophisaurus harti
Authors: Zhu Jingjing , Huang Xian , Gao Hong , Bao Qiuying , Zhao Yun , Hu Jin‐Feng , Xia Gang 
Published: July 2013

AbstractGlucagon‐like peptide 1 receptor (GLP1R) is a promising target for the treatment of type 2 diabetes. Because of the short half‐life of endogenous GLP1 peptide, other GLP1R agonists are considered to be appealing therapeutic candidates. A high‐throughput assay has been established to screen for GLP1R agonists in a 60 000‐well natural product compound library fractionated from 670 different herbs/materials widely used in traditional Chinese medicines (TCMs). The screening is based on primary screen of GLP1R+ reporter gene assay with the counter screen in GLP1R− cell line. An active fraction, A089‐147, was identified from the screening. Fraction A089‐147 was isolated from dried Ophisaurus harti, and the fact that its GLP1R agonist activity was sensitive to trypsin treatment indicates its peptidic nature. The active ingredient of A089‐147 was later identified as O. harti GLP1 through transcriptome analysis. Chemically synthesized O. harti GLP1 showed GLP1R agonist activity and sensitivity to dipeptidase IV digestion. This study illustrated a comprehensive screening strategy to identify novel GLP1R agonists from TCMs libraries and at the same time underlined the difficulty of identifying a non‐peptidic GLP1R agonist. The novel O. harti GLP1 peptide yielded from this study confirmed broader application of TCMs libraries in active peptide identification. Copyright © 2013 European Peptide Society and John Wiley & Sons, Ltd.
An efficient fair UC‐secure protocol for two‐party computation
Authors: Ruan Ou , Chen Jing , Zhou Jing , Cui Yongquan , Zhang Mingwu 
Published: July 2013

ABSTRACTWith the development of modern Internet and mobile networks, there is an increasing need for collaborative privacy‐preserving applications. Secure multi‐party computation (SMPC) gives a general solution to these applications and has become a hot topic. Yao's garbled circuit approach is a leading method in designing protocols for secure two‐party computation (2PC), which is a very important base in SMPC. However, there are only few protocols obtaining the fairness of secure 2PC, and only one of them was constructed within the standard simulation framework but with very low efficiency. In this paper, we propose an efficient fair secure Yao's garbled circuit protocol within the universally composable (UC) framework. By comparing with all other fair secure Yao's protocols, our new protocol enjoys three advantages. First, our protocol is more efficient than any other fair secure Yao's protocols within the standard simulation framework. Second, our protocol is the first fair UC‐secure Yao's garbled circuit protocol, so it is more secure than other fair Yao's protocols. Third, there does not require any third party involved in our protocol; thus, it is very suitable for many applications. Copyright © 2013 John Wiley & Sons, Ltd.
Non‐interactive deniable ring signature without random oracles
Authors: Zeng Shengke , Li Qinyi , Qin Zhiguang , Lu Qing 
Published: July 2013

AbstractRing signature scheme protects the privacy while signer is signing. In the ring signature scheme, the signer can randomly choose verification keys of entities and generate a signature on behalf of these entities. The generated signature can be verified by anyone by inputting all these verification keys. Consequently, a ring signature convinces a verifier that one member from these entities produces this signature without revealing which one. This property is good for the signer as his identity is not leaked. However, the signer also can make use of this capacity to generate a malicious signature on behalf of a ring. Because of the unconditional anonymity of ring signature, this signer cannot be traced to be responsible for his malicious signing. Group signature can avoid this problem because the group manager in the group signature can trace the actual signer by using the trapdoor. However, the group is fixed from the beginning and it needs a complicated setup algorithm. Deniable ring signature was introduced by Komano et al., which allows to revoke the anonymity of actual signer without the manager's help if necessary. The actual signer can confirm his signing for anyone through the confirmation protocol. On the other hand, non‐signers in the ring can disavow this signing by the disavowal protocol. Therefore, the actual signer can be traced. However, Komano's scheme was proven in random oracles, and the traceability protocols (confirmation and disavowal protocols) are interactive. To improve Komano's construction, this work proposes a new efficient non‐interactive deniable ring signature scheme in the standard model. It is a kind of ring signature and therefore, it does not require a setup algorithm, and the ring in the scheme is flexible. Copyright © 2013 John Wiley & Sons, Ltd.
Graph‐based methods for protein structure comparison
Authors: Fober Thomas , Mernberger Marco , Klebe Gerhard , Hüllermeier Eyke 
Published: July 2013

While sequence‐based methods are widely used as reliable tools for protein function prediction in general, these methods are likely to fail in cases of low sequence similarity. This is due to the fact that proteins with low sequence similarity may nevertheless have similar functions and exhibit similar structures. In such cases, structure‐based comparison methods can help to provide further insights owing to the widely accepted paradigm that structure mirrors function. Moreover, thanks to the steady increase in structural information with the advent of structural genomic projects and the steady improvements in structure prediction, these methods are becoming more and more applicable. Many structure‐based approaches to the comparative analysis of proteins and the inference of protein function rely on graph formalisms for modeling protein structures and, correspondingly, employ graph‐theoretic algorithms for analyzing and comparing such structures. This review is devoted to approaches of that kind and presents an overview of the most important graph‐based algorithms.This article is categorized under:

Algorithmic Development > Biological Data Mining
Algorithmic Development > Structure Discovery
C7orf10 encodes succinate‐hydroxymethylglutarate CoA‐transferase, the enzyme that converts glutarate to glutaryl‐CoA
Authors: Marlaire Simon , Van Schaftingen Emile , Veiga‐da‐Cunha Maria 
Published: July 2013

AbstractGlutarate, a side‐product in the metabolism of tryptophan and lysine, is metabolized by conversion to glutaryl‐CoA by a transferase using succinyl‐CoA as a coenzyme donor. The enzyme catalyzing this conversion has not been formally identified. However, a benign form of glutaric aciduria (glutaric aciduria type III) is due to mutations in C7orf10, a putative member of the coenzyme A transferase class III family. In the present work, we show that recombinant human C7orf10 catalyzes the succinyl‐CoA‐dependent conversion of glutarate to glutaryl‐CoA. C7orf10 could use many dicarboxylic acids as CoA acceptors, the best ones being glutarate, succinate, adipate, and 3‐hydroxymethylglutarate. Confocal microscopy analysis of CHO cells transfected with a C7orf10‐GFP fusion protein indicated that C7orf10 is a mitochondrial protein, in agreement with the presence of a predicted mitochondrial propeptide at its N‐terminus. The effect of a missense mutation (p.Arg336Trp) found in the homozygous state in several patients with glutaric aciduria type III and present in the general population at a low frequency was also investigated. The p.Arg336Trp mutation led to the production of insoluble and inactive C7orf10 both in Escherichia coli and in HEK293T cells. These findings indicate that C7orf10 is implicated in the metabolism of glutarate, but possibly also of longer dicarboxylic acids. Homologues of this enzyme are found in numerous bacterial operons comprising also a putative glutaryl‐CoA dehydrogenase, indicating that an enzyme with similar specificity exists in prokaryotes.
Progressive modelling of the gravity-induced landslide using the local dynamic strength reduction method
Authors: Chen Guo-qing , Huang Run-qiu , Xu Qiang , Li Tian-bin , Zhu Ming-lei 
Published: July 2013

Abstract
The failure of slope is a progressive process, and the whole sliding surface is caused by the gradual softening of soil strength of the potential sliding surface. From this viewpoint, a local dynamic strength reduction method is proposed to capture the progressive failure of slope. This method can calculate the warning deformation of landslide in this study. Only strength parameters of the yielded zone of landslide will be reduced by using the method. Through continuous local reduction of the strength parameters of the yielded zone, the potential sliding surface developed gradually and evolved to breakthrough finally. The result shows that the proposed method can simulate the progressive failure of slope truly. The yielded zone and deformation of landslide obtained by the method are smaller than those of overall strength reduction method. The warning deformation of landslide can be obtained by using the local dynamic strength reduction method which is based on the softening characteristics of the sliding surface.
GIS-based numerical modelling of debris flow motion across three-dimensional terrain
Authors: Wu Jian , Chen Guang-qi , Zheng Lu , Zhang Ying-bin 
Published: July 2013

Abstract
The objective of this study is to incorporate a numerical model with GIS to simulate the movement, erosion and deposition of debris flow across the three dimensional complex terrain. In light of the importance of erosion and deposition processes during debris flow movement, no entrainment assumption is unreasonable. The numerical model considering these processes is used for simulating debris flow. Raster grid networks of a digital elevation model in GIS provide a uniform grid system to describe complex topography. As the raster grid can be used as the finite difference mesh, the numerical model is solved numerically using the Leap-frog finite difference method. Finally, the simulation results can be displayed by GIS easily and used to debris flow evaluation. To illustrate this approach, the proposed methodology is applied to the Yohutagawa debris flow that occurred on 20th October 2010, in Amami-Oshima area, Japan. The simulation results that reproduced the movement, erosion and deposition are in good agreement with the field investigation. The effectiveness of the dam in this real-case is also verified by this approach. Comparison with the results were simulated by other models, shows that the present coupled model is more rational and effective.