bluuebunny/crossref_metadata_2025_split huggingface dataset:
Anterior intercostal artery perforator flap in immediate breast reconstruction: Anatomical study and clinical application
Authors: Carrasco‐López Cristian , Julian Ibañez Juan Francisco , Vilà Jordi , Luna Tomás Miguel Angel , Navinés López Jordi , Pascual Miguel Iciar , Fernandez‐Llamazares‐Rodriguez Jaime , Higueras‐Suñe Carmen 
Published: March 2017

BackgroundAlthough the use of lateral intercostal artery perforator (ICAP) flaps for immediate breast reconstruction has been widely described, data on the use of the anterior ICAP (AICAP) flaps for this indication are limited. In this context, we describe the results of anatomical study and our clinical experience with AICAP flaps for breast reconstruction.MethodsIn this study, the location and characteristics of the AICAPs were dissected in 12 female adult formalin‐preserved hemitrunks and two fresh‐frozen cadavers. Fourteen patients (mean BMI 23) underwent partial breast resection for a quadrant breast cancer followed by breast reconstruction with an intercostal perforator flap. The mean resection size was 6 × 5 × 5.5 cm (range 3–8 × 3.5–7 × 4–8 cm).The main outcome measures were pre‐operative and postradiotherapy health‐related quality of life assessed with the BREAST‐Q reconstruction survey.ResultsAccording to anatomical study, at least one perforator was found in each third of hemitrunks dissected. The mean of perforator size was in diameter 0.42 ± 0.05 mm and in length 3.1 ± 0.36 cm. In clinical outcomes, the mean of flap size was 16 × 5 × 3 cm (range 14–19 × 3–8 × 2–5 cm). The mean surgical time was 120 min (range 109–125 min). Only one partial flap failure was detected. No postoperative changes in breast size were observed, although soft tissue changes were observed in four patients after radiotherapy. The mean BREAST‐Q scores changes were 0 in satisfaction with the breast, 5 in satisfaction with outcome, 0 in psychosocial well‐being, 6.15 in sexual well being, and 34.69 in physical well‐being.ConclusionsBased on this anatomical and clinical study, we found AICAP flap has a consistent vascularization with good perforators. And moreover, it is suitable for partial breast reconstruction (quadrantectomy) and does not appear to negatively impact patient satisfaction.
Compact and low‐profile GaN hybrid‐IC based on TSV Si‐interposer technology
Authors: Yook Jong‐Min , Kim Dongsu , Kim Junchul 
Published: March 2017

ABSTRACTThis article presents new compact, low‐profile GaN hybrid‐IC technologies. Three different kinds of IC integration methods based on a silicon substrate are studied to make GaN hybrid‐ICs. First, two hybrid‐IC LNAs are designed and fabricated to estimate their RF performances with the combination of a discrete transistor and silicon integrated passive devices (IPDs) in which an input and output matching networks are integrated as thin‐film devices. A wire‐bonding method is used to make interconnections between the two discrete devices. Second, the GaN HEMT transistor is fully embedded in the silicon interposer using a cavity to make a low‐profile package. All kinds of passive components for matching networks are also integrated on the Si‐interposer and their interconnections are made using lithography technology. Third, the TSV technology is added to the embedded IC package to make an easily assembled hybrid‐IC. In this hybrid IC, the GaN transistor is embedded in the Si‐interposer and I/Os are located under the package bottom as in a Quad Flat No‐leads (QFN) package structure. The size of the realized hybrid GaN power LNA is only 1.7 × 1.5 × 0.15 mm3 and it is almost the same as the commercial MMIC size. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1087–1092, 2017
Simultaneously two‐parameter measurement using tilted fiber grating and long period fiber grating
Authors: Yu Yi‐Lin , Hung Hzu‐Hsuan , Liaw Shien‐Kuei , Shih Min‐Hsiung , Kishikawa Hiroki , Goto Nobuo 
Published: March 2017

ABSTRACTWe proposed and demonstrated a complex sensor, which combined a tilted fiber Bragg grating and a long period fiber grating. We used this sensor to measure the surrounding refractive index and temperature of an unknown liquid. The measured range of the temperature and environmental refractive index were 30–70°CC and 1.33–1.4, respectively. The measured results have linearly trend with high sensitivity. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1122–1125, 2017
Miniaturized dual‐band bandpass filter based on stepped impedance resonators
Authors: Kim Changsoon , Hyeon Lee Tae , Shrestha Bhanu , Chul Son Kwang 
Published: March 2017

ABSTRACTIn this article, we developed a dual‐band band‐pass filter (DB‐BPF) based on stepped impedance resonators (SIRs) using coupled feeding lines input and output ports. The developed filter allows the adjustment of the frequency and the bandwidth of the upper band (3.8 GHz) and the lower band (2.4 GHz). The transmission coefficients of the DB‐BPF are improved by maximizing the coupling between the SIRs. Furthermore, the capability of the rejection band is increased and the insertion losses between the two pass‐bands are reduced. The experimental results for the insertion loss (S21) and the return loss (S11) of the lower band (2.4 GHz) were1.0 and 2.0 dB, respectively while the insertion loss and return loss for the upper band (3.8 GHz) were 23 and 25 dB, respectively. The 3 dB fractional bandwidths obtained for both bands were about 200 MHz and four transmission zeros around the passband edges were created to improve the selectivity of the DB‐BPF. The overall size of the DB‐BPF was also reduced significantly. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1116–1119, 2017
Compact wideband low temperature cofired ceramic bandpass filter using coupled shorted U‐shape sirs
Authors: Xiangjun Zhang , Yiming Chen , Hao Zhang 
Published: March 2017

ABSTRACTThe design of a compact wideband the letter with U‐shape shorted step‐impedance‐resonator (SIR) using low temperature cofired ceramic technology is introduced in this article. The filter is composed of the four shorted SIRs embedded in multilayer thin ceramic to produced a compact size. By introducing the proper coupling structure, the filter has sharp skirt characteristic. The filter is demonstrated with experimental results operating at central frequency 1.80 GHz with a 3‐dB bandwidth of 75.0%. More than 30 dB of suppression from 0.5 to 1.4 GHz and more than 25 dB attenuation at 3.10 GHz are obtained in the experimental results. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1145–1147, 2017
Chipless RFID tag using high‐impedance surfaces with resistor loading
Authors: Ni Yi‐Zhan , Huang Xiao‐Dong , Cheng Chong‐Hu 
Published: March 2017

ABSTRACTThis study presents a novel chipless radio frequency identification tag based on HIS structure with loaded resistors. The scatters are designed to be period nesting loops. The power of the back scatted signal is controlled by varying the resistance of loaded resistors. Its operation principle is described through an equivalent transmission line model. By applying the ASK coding technology, a coding density of 11.1 bits is obtained. Polarization independence is validated by measuring the tag in different polarization directions. The cases excited with an oblique incidence wave are also discussed. Experimental validations of the proposed tag have been presented together with considerations about practical implementation. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1136–1140, 2017
Circularly polarized rectangular dielectric resonator antenna fed with unequal parallel microstrip lines for Wi‐MAX applications
Authors: Chowdhury Rakesh , Chaudhary Raghvendra Kumar 
Published: March 2017

ABSTRACTIn this article, a circularly polarized rectangular dielectric resonator antenna (RDRA) is proposed for Wi‐MAX applications. Unequal parallel Microstrip lines are used as feed circuit. In the proposed structure fundamental mode similar to TE111 polarized in two orthogonal directions to generate orthogonal modes are generated. The proposed structure shows measured input impedance bandwidth (S11 < −10 dB) and axial ratio (AR < 3 dB) of 23.8% (at center frequency 3.31 GHz) and 9.2% (at center frequency 3.46 GHz), respectively. It exhibits excellent radiation pattern and average gain of 5.5 dB in working frequency range. The proposed design is suitable for Wi‐MAX applications (3.3–3.7 GHz). Radiation efficiency over 95% (3.3–3.6 GHz) is achieved in the proposed structure. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1182–1188, 2017
Transparent microstrip line with IZTO/AG/IZTO multilayer electrode
Authors: Hong Seungman , Kim Youngsung , Jung Young‐Bae , Jung Chang Won 
Published: March 2017

ABSTRACTThis article presents a transparent microstrip line made of a transparent multilayer electrode (IZTO/Ag/IZTO) to investigate its feasibility in high frequency usage. The average transmittance of the transparent multilayer electrode is 81% in the range of visible wavelength and average conductivity is ∼2 × 106 S/m. The transparent microstrip lines, which are deposited on transparent acryl and glass substrates are fabricated and compared with the copper microstrip lines, which are printed on conventional microwave substrates, FR‐4. The transmission coefficient (S21) and reflection coefficient (S11) of the proposed microstrip line have been measured and reported. In addition, transparent microstrip lines on transparent ground planes have also been fabricated and measured with three IZTO/Ag/IZTO (IAI) electrodes (Thickness of Ag = 10, 12, 14 nm). © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1161–1164, 2017
Flexible polarization‐dependent absorbers based on patterned carbon nanotubes films
Authors: Danlée Yann , Bailly Christian , Huynen Isabelle 
Published: March 2017

ABSTRACTWe present a thin and flexible broadband polarizer‐absorber concept based on a multi‐layered anisotropic arrangement of carbon nanotubes (CNT) and polymer films. The anisotropic layers consist of CNT striplines deposited over a prepared polycarbonate surface. Stacks of the patterned composites organized in gradient of layer conductivity are very effective for polarization‐sensitive absorption of incident microwaves. This specific arrangement drastically decreases undesired reflection and yields an average degree of polarization of 0.46 for a millimeter‐thick multilayer over the 8–67 GHz range. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1164–1167, 2017
Superstrate loaded miniaturized patch for biomedical telemetry
Authors: Mohamed Abdelrahman E. , Muqaibel Ali H. , Sharawi Mohammad S. 
Published: March 2017

ABSTRACTA Superstrate loaded miniaturized patch antenna is proposed for biomedical applications. The targeted operating frequency is (902–928 MHz) ISM band with a center frequency of 915 MHz. The antenna is designed to operate in close proximity with human‐body with a size of 25 × 25 × 1.92 mm3. Parametric studies were conducted to specify the dominant parameters and to understand their effect on the antenna performance. Measurements show that the fabricated antenna resonates around 915 MHz with a 30 MHz impedance bandwidth. On‐skin measurement results are presented for several spots on the human‐body. Furthermore, the transmission coefficient (S21) of the fabricated antenna is measured using lean beef slices with various thicknesses and showed good agreement with simulation results. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1212–1218, 2017
Band tuning of a waveguide antenna using a reflective metasurface
Authors: Wang Yelong , Qi Feng , Li Weifan 
Published: March 2017

ABSTRACTIn this article, a new approach was proposed to tune the operation band of a waveguide antenna over 4 GHz. By loading an elaborately designed metasurface, the standing‐wave field in the waveguide was switched to a new distribution. This could shift the operation band to a new one. A sample antenna integrated with the metasurface was manufactured and measured. Both simulation and experimental results demonstrate that using abrupt reflection phases to control the antenna operation band is an effective approach. Also, the tuning method proposed here can be applied to other antennas to achieve higher tunability. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1218–1222, 2017
Design of a dual‐band microstrip branch‐line balun using T‐shaped coupled lines
Authors: Barik Rusan Kumar , Phani Kumar Kanaparthi V. , Karthikeyan S.S. 
Published: March 2017

ABSTRACTThis article presents the development of a novel dual‐band branch line balun with design flexibility. The T‐shaped coupled line structure is constructed by two series short‐ended coupled lines and one open‐ended stub to obtain the dual‐band characteristics. The proposed dual‐band structure has the capability to design a conventional microstrip line with arbitrary impedances and electrical lengths at two different operating frequencies. In addition to this, different range of frequency ratios is obtained by varying the length of the stub. The required explicit design equations are derived analytically to compute the physical dimensions of the coupled lines and stub. Based on these equations, closely and widely spaced frequency bands useful for many wireless communication systems are devised. To prove better agility, three examples of dual‐band branch line baluns are designed. Finally, a prototype of dual‐band balun is demonstrated for GSM and WiMAX applications at 0.9 and 3.5 GHz, respectively. Good agreement is found between the theoretical predictions and experimental results. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1197–1202, 2017
Investigation of field uniformity and uncertainties in reverberation chamber using nonequidistant tuner position
Authors: Song Jian , Wang Hang , Guo Yong Xin 
Published: March 2017

ABSTRACTThis paper investigates the field uniformity and uncertainties in a mode‐tuned reverberation chamber when nonequidistant tuner position is used. Both simulation and actual measurements have been carried out to compare the field uniformity and sample correlation between the conventional equidistant tuner position and nonequidistant tuner position. Results show that the standard deviation of the electric field is superior with the latter scheme and mean time the sample correlation has also been improved. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1190–1194, 2017
Assessment of alcoholic standard drinks using the Munich composite international diagnostic interview (M‐CIDI): An evaluation and subsequent revision
Authors: Kuitunen‐Paul Sören , Rehm Jürgen , Lachenmeier Dirk W. , Kadrić Firdeus , Kuitunen Paula T. , Wittchen Hans‐Ulrich , Manthey Jakob 
Published: March 2017

AbstractThe quantity and frequency of alcohol consumption are crucial both in risk assessment as well as epidemiological and clinical research. Using the Munich Composite International Diagnostic Interview (M‐CIDI), drinking amounts have been assessed in numerous large‐scale studies. However, the accuracy of this assessment has rarely been evaluated. This study evaluates the relevance of drink categories and pouring sizes, and the factors used to convert actual drinks into standard drinks. We compare the M‐CIDI to alternative drink assessment instruments and empirically validate drink categories using a general population sample (n = 3165 from Germany), primary care samples (n = 322 from Italy, n = 1189 from Germany), and a non‐representative set of k = 22503 alcoholic beverages sold in Germany in 2010–2016. The M‐CIDI supplement sheet displays more categories than other instruments (AUDIT, TLFB, WHO‐CIDI). Beer, wine, and spirits represent the most prevalent categories in the samples. The suggested standard drink conversion factors were inconsistent for different pouring sizes of the same drink and, to a smaller extent, across drink categories. For the use in Germany and Italy, we propose the limiting of drink categories and pouring sizes, and a revision of the proposed standard drinks. We further suggest corresponding examinations and revisions in other cultures.
B1‐sensitivity analysis of quantitative magnetization transfer imaging
Authors: Boudreau Mathieu , Stikov Nikola , Pike G. Bruce 
Published: March 2017

PurposeTo evaluate the sensitivity of quantitative magnetization transfer (qMT) fitted parameters to B1 inaccuracies, focusing on the difference between two categories of T1 mapping techniques: B1‐independent and B1‐dependent.MethodsThe B1‐sensitivity of qMT was investigated and compared using two T1 measurement methods: inversion recovery (IR) (B1‐independent) and variable flip angle (VFA), B1‐dependent). The study was separated into four stages: 1) numerical simulations, 2) sensitivity analysis of the Z‐spectra, 3) healthy subjects at 3T, and 4) comparison using three different B1 imaging techniques.ResultsFor typical B1 variations in the brain at 3T (±30%), the simulations resulted in errors of the pool‐size ratio (F) ranging from −3% to 7% for VFA, and −40% to > 100% for IR, agreeing with the Z‐spectra sensitivity analysis. In healthy subjects, pooled whole‐brain Pearson correlation coefficients for F (comparing measured double angle and nominal flip angle B1 maps) were ρ = 0.97/0.81 for VFA/IR.ConclusionThis work describes the B1‐sensitivity characteristics of qMT, demonstrating that it varies substantially on the B1‐dependency of the T1 mapping method. Particularly, the pool‐size ratio is more robust against B1 inaccuracies if VFA T1 mapping is used, so much so that B1 mapping could be omitted without substantially biasing F. Magn Reson Med 79:276–285, 2018. © 2017 International Society for Magnetic Resonance in Medicine.
Body mass index trajectories of Indigenous Australian children and relation to screen time, diet, and demographic factors
Authors: Thurber Katherine Ann , Dobbins Timothy , Neeman Teresa , Banwell Cathy , Banks Emily 
Published: March 2017

ObjectiveLimited cross‐sectional data indicate elevated overweight/obesity prevalence among Indigenous versus non‐Indigenous Australian children. This study aims to quantify body mass index (BMI) trajectories among Indigenous Australian children aged 3‐6 and 6‐9 years and to identify factors associated with the development of overweight/obesity.MethodsThree‐year BMI change was examined in up to 1,157 children in the national Longitudinal Study of Indigenous Children. BMI trajectories among children with normal baseline BMI (n = 907/1,157) were quantified using growth curve models.ResultsBaseline prevalences of overweight/obesity were 12.1% and 25.4% among children of mean age 3 and 6 years, respectively. Of children with normal baseline BMI, 31.9% had overweight/obesity 3 years later; BMI increased more rapidly for younger versus older (difference: 0.59 kg/m2/year; 95% CI: 0.50‐0.69), female versus male (difference: 0.15 kg/m2/year; 95% CI: 0.07‐0.23), and Torres Strait Islander versus Aboriginal (difference: 0.36 kg/m2/year; 95% CI: 0.17‐0.55) children. Results were consistent with less rapid rates of BMI increase for children with lower sugar‐sweetened beverage (including fruit juice) and high‐fat food consumption. Children's BMI was lower in more disadvantaged areas.ConclusionsOverweight/obesity is common, and increases rapidly, in early childhood. Interventions are required to reduce the overweight/obesity prevalence among Indigenous Australian children in the first 3 years of life and to slow the rapid overweight/obesity onset from age 3 to 9 years.
Exercise training‐induced improvement in skeletal muscle PGC‐1α‐mediated fat metabolism is independent of dietary glycemic index
Authors: Mulya Anny , Haus Jacob M. , Solomon Thomas P.J. , Kelly Karen R. , Malin Steven K. , Rocco Michael , Barkoukis Hope , Kirwan John P. 
Published: March 2017

ObjectiveThis study hypothesized that a low‐glycemic diet combined with exercise would increase expression of nuclear regulators of fat transport and oxidation in insulin‐resistant skeletal muscle.MethodNineteen subjects (64 ± 1 y; 34 ± 1 kg/m2) were randomized to receive isocaloric high‐glycemic‐index (HiGIX; 80 ± 0.6 units, n = 10) or low‐glycemic‐index (LoGIX; 40 ± 0.3 units, n = 9) diets combined with supervised exercise (1 h/d, 5 d/wk at ∼85% HRmax) for 12 weeks. Insulin sensitivity was determined by hyperinsulinemic‐euglycemic clamp. Skeletal muscle biopsies were obtained before and after the intervention to assess fasting gene and protein expression.ResultsWeight loss was similar for both groups (9.5 ± 1.3 kg). Likewise, improvements in insulin sensitivity (P < 0.002) and PPARγ (P < 0.002), PGC‐1α (P = 0.003), CD36 (P = 0.003), FABP3 (mRNA, P = 0.01 and protein, P = 0.02), and CPT1B (mRNA, P = 0.03 and protein, P = 0.008) expression were similar for both interventions. Increased insulin sensitivity correlated with increased PGC‐1α expression (P = 0.04), and increased fasting fat oxidation correlated with increased FABP3 (P = 0.04) and CPT1B (P = 0.05) expression.ConclusionsAn exercise/diet program resulting in 8% to 10% weight loss improved insulin sensitivity and key molecular mechanisms in skeletal muscle that are controlled by PGC‐1α. These effects were independent of the glycemic index of the diets.
Robust observer‐based control for uncertain discrete time‐delay systems with nonlinearities electric‐hydraulic system under Hölder condition
Authors: Wang Xin , Zuo Xin , Liu Jian‐wei , Liang Hua‐qing 
Published: March 2017

SummaryIn this paper, the robustness andcontrol problems of output dynamic observer‐based control for uncertain discrete time‐delay systems with nonlinearities under a class of Hölder condition are considered. The parameter uncertainties enter into all the system matrices, the time‐varying delay is unknown with given lower and upper bounds, and the nonlinearities are described by satisfying a class ofαHölder condition. The asymptotic stabilization for uncertain time‐delay nonlinear system will be guaranteed. Linear matrix inequality optimization approach is used to design the robust observer‐basedoutput dynamic controls. The feedback control and observer gains are got from linear matrix inequality optimization feasible solution. Electric‐hydraulic system is described and used to illustrate the method.