bluuebunny/crossref_metadata_2025_split huggingface dataset:
60 GHz broadband variable gain mixer using positive feedback in 65 nm CMOS
Authors: Wang Chong , Li Zhiqun , Li Qin , Wang Zhigong 
Published: September 2015

A 60 GHz down‐conversion mixer for a superheterodyne receiver with an IF frequency of about 12 GHz is reported. On the basis of the double‐balanced Gilbert cell, the mixer comprises two series LCR networks to enlarge the IF bandwidth (BW) and a cross‐coupled pair used as positive feedback to the raise conversion gain (CG) at the load stage. By adjusting the bias of the cross‐coupled pair, the mixer features a variable CG. The mixer core only consumes 2.8 mA from a 1.2 V supply when the cross‐coupled pair is turned off, whereas the corresponding a 3 dB IF BW is from 6.5 to 17.5 GHz with a 3 dB CG, which is believed to be the widest IF BW ever reported for a 60 GHz down‐conversion mixer with an IF frequency of about 12 GHz. The CG can be enhanced by driving the cross‐coupled pair, which consumes another 2.4 mA, i.e. 5.2 mA in all for the mixer core. The CG will reach 7.5 dB and the corresponding 3 dB IF BW is from 8 to 16 GHz, where the CG and BW product against power consumption is also believed one of the best results ever reported for a 60 GHz down‐conversion mixer with IF frequency of about 12 GHz.
Target tracking using Doppler‐only measurements in FM broadcast band commensal radar
Authors: Maasdorp F.D.V. , Inggs M.R. , Nadjiasngar R. 
Published: September 2015

Radar research using transmitters of opportunity (commensal radar (CR)) has experienced a resurgence in popularity. Most published results to date used a multiple transmitter, single receiver site configuration with combinations of bearing, range and Doppler for target localisation. Doppler‐only tracking has received the least attention. This reported work demonstrates with field measurements, using a single frequency modulation broadcast radio transmitter and multiple, spatially distributed, low‐cost CR receivers, that Doppler‐only tracking is achievable with target position accuracies of 150 m, despite a course range resolution.
4 × 25.8 Gbit/s (100 Gbit/s) simultaneous operation of InGaAlAs based DML array monolithically integrated with MMI coupler
Authors: Kobayashi W. , Kanazawa S. , Ueda Y. , Fujisawa T. , Sanjoh H. , Itoh M. 
Published: September 2015

100 Gbit/s operation of a 1.3 μm, 4‐channel directly modulated laser (DML) array monolithically integrated multimode interference (MMI) coupler is demonstrated for the first time. An optical modulation amplitude exceeding −0.7 dBm and clear eye openings are achieved at 55°C under simultaneous operation.
40 Gbit/s data transmission with 980 nm VCSELs at 120°C using four‐level pulse‐amplitude modulation
Authors: Wolf P. , Lott J.A. , Arsenijević D. , Moser P. , Li H. , Bimberg D. 
Published: September 2015

Temperature‐stable oxide‐confined 980 nm vertical‐cavity surface‐emitting lasers for optical interconnects are presented. For the first time 40 Gbit/s 4‐PAM data transmission is experimentally demonstrated at temperatures of 100 and 120°C.
GaN‐on‐silicon high electron mobility transistors with blocking voltage of 3 kV
Authors: Herbecq N. , Roch‐Jeune I. , Linge A. , Grimbert B. , Zegaoui M. , Medjdoub F. 
Published: September 2015

A three‐terminal breakdown voltage over 3 kV is reported on AlGaN/GaN high‐electron‐mobility transistors (HEMTs) grown on silicon (Si) (111) substrate with a buffer thickness of 5.5 µm. The breakdown voltage of the 1.5 × 50 μm2 devices has been improved by more than 200% by applying a local substrate removal all around the drain of the transistors in order to suppress the parasitic substrate conduction phenomenon. This establishes a new record breakdown voltage for GaN‐on‐silicon lateral power devices while maintaining a low specific on‐resistance of about 10 mΩ · cm2.
Modular baseband pulse generator for impulse‐radio ultra‐wideband transmitter
Authors: Barraj I. , Trabelsi H. , Rahajandraibe W. , Masmoudi M. 
Published: September 2015

A new concept of burst generator architecture dedicated to impulse‐radio ultra‐wideband wireless communication systems is presented. Bursts are generated by using four elementary baseband pulse generators operating in parallel. Thus, the resulting waveform is the amplitude and phase addition of time‐overlapped pulses. The circuit has been implemented in 65 nm CMOS technology under a 1.2 V supply voltage. Simulation results are presented exhibiting a power consumption of 7.24 mW.
Super class‐AB bulk‐driven OTAs with improved slew rate
Authors: Zhao Xiao , Zhang Qisheng , Deng Ming 
Published: September 2015

A super class‐AB bulk‐driven (BD) operational transconductance amplifier (OTA) with improved slew rate (SR) is presented. The proposed OTA utilises bulk flipped voltage follower for the BD input stage and a nonlinear current mirror for the active load to enhance the SR of conventional BD counterpart. Both the traditional and the proposed OTA, have been simulated on the UMC 180 nm process, and results show that the proposed BD OTA achieves a 350% SR enhancement with only 25% increased power dissipation compared with the conventional one.
Lattice parameter engineering for III–V long wave infrared photonics
Authors: Belenky G. , Lin Y. , Shterengas L. , Donetsky D. , Kipshidze G. , Suchalkin S. 
Published: September 2015

The design and fabrication of metamorphic periodic heterostructures containing InAsSb layers with controllable modulated Sb composition and well‐regulated band alignments are reported. The bandgap energy of ordered alloy can be much smaller than that in bulk InAsSb with any Sb content. The modulation period is determined by the thicknesses of the strain compensated InAsSbx/InAsSby pairs grown on a virtual GaInzSb substrate with a given lattice constant. The experiment shows that the deviation of the modulation period from ∼2.3 to ∼5.5 nm leads to the shift of the maximum of 20 K photoluminescence from 12.9 to 19.6 µm. It is concluded that the growth of strain compensated InAsSbx/InAsSby on virtual substrates allows developing narrow bandgap III–V materials with various bandgap energies.
Non‐isolated high step‐up DC–DC converter based on coupled inductor with reduced voltage stress
Authors: Khalilzadeh Mohammad , Abbaszadeh Karim 
Published: September 2015

In this study, a novel topology for high step‐up DC–DC converters is proposed based on coupled inductors. The proposed converter has many features, such as high conversion ratio, recycling the leakage energy of the coupled inductor, minimisation of voltage stress of components, simplicity of control and high efficiency. An optimisation process is employed to optimise coupled inductor turn ratios which minimise voltage stresses of the diodes and the switch. Minimisation of the switch voltage stress results in the use of switch with smaller on‐resistance and improvement in the overall efficiency. The operation principles and steady‐state analysis of continuous, discontinuous and boundary conduction modes are discussed in detail. The performance of the proposed converter is compared with the similar converters and it is concluded that new topology has considerable advantages over them. The simulation results verify the performance of the proposed circuit. A 250 W prototype with 400 V output voltage is implemented and the experimental results are in a good agreement with the simulation results.
Aerobic training alone or combined with strength training affects fitness in elderly: Randomized trial
Authors: Burich Rasmus , Teljigović Sanel , Boyle Eleanor , Sjøgaard Gisela 
Published: September 2015

AbstractPurpose: To investigate if combined strength and aerobic training can enhance aerobic capacity in the elderly to a similar extent as aerobic training alone when training duration is matched. Methods: Elderly men and women (age 63.2 ± 4.7) were randomized into two intervention groups: an aerobic group (AG, n = 17) and a combined group (CG, n = 16). Subjects trained 40 minutes three times a week for 12 weeks. Both groups trained 20 minutes at 65% of heart rate reserve on ergometer cycles followed by another 20 minutes on the ergometer cycles for AG and 20‐minute strength training for the lower body for CG. The primary outcome was VO2max. Secondary outcomes were maximal voluntary contraction (MVC) in isometric knee extension, 1 repetition maximum in three leg exercises, body fat, waist‐to‐hip ratio, blood pressure and score on the Health Survey Short Form 36 (SF‐36). Results: Both groups improved VO2max (p < .01) and MVC (p < .001). VO2max increased 17% confidence interval (CI) [7.4–26] in CG and 26% CI [14.1–38.2] in AG, with no significant difference between groups. MVC increased 22% CI [16.3–27.7] in CG and 9% CI [4.6–13.5] in AG with CG improving MVC more than AG (p < .01). CG's score on the general health dimension on the SF‐36 health survey improved more than AG's score. Conclusion: Elderly can substitute a part of their aerobic training with strength training and still improve VO2max to a clinically significant degree when strength training is performed with large muscle groups subsequently to the aerobic training. Combined training additionally improves strength and self‐assessed general health more than aerobic training alone.
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization
Authors: Espeland Sigurd Heiberg , Albretsen Jon , Olsen Esben Moland , Bodvin Torjan 
Published: September 2015

Abstract
Having valid information about the location and dynamics of biological processes is important for coastal management. In this context modelling, the pelagic drift of early life stages has been shown to be an important tool for understanding the spatial scale of population dynamics in marine systems. Often simulated particles are released in hypothetical quantities at assumed spawning grounds with no or few field data to guide the model parametrization. In this study, we combine high-resolution field data and state-of-the-art oceanographic modelling and use a probabilistic approach to construct kernel density distributions of the dispersal of pelagic fish eggs. Specifically, the potential drift of pelagic offspring of cod (Gadus morhua) was investigated in a large, open fjord system in northern Norway by combining field observations of newly spawned cod eggs with simulations of particle movement using a semi-Lagrangian trajectory model with inputs from high-resolution hydrodynamic simulations. The larger part of the distribution of eggs after drift was located in the fjord, suggesting fjord scale recruitment dynamics. Finally, we also examined the drift of eggs released in a uniform distribution and found that lack of egg survey data gave an unrealistically large spread of egg particles within this fjord system.
Limits to adaptation in partially selfing species
Authors: Hartfield Matthew , Glémin Sylvain 
Published: September 2015

AbstractIn outcrossing populations, “Haldane’s Sieve” states that recessive beneficial alleles are less likely to fix than dominant ones, because they are less expose to selection when rare. In contrast, selfing organisms are not subject to Haldane’s Sieve and are more likely to fix recessive types than outcrossers, as selfing rapidly creates homozygotes, increasing overall selection acting on mutations. However, longer homozygous tracts in selfers also reduces the ability of recombination to create new genotypes. It is unclear how these two effects influence overall adaptation rates in partially selfing organisms. Here, we calculate the fixation probability of beneficial alleles if there is an existing selective sweep in the population. We consider both the potential loss of the second beneficial mutation if it has a weaker advantage than the first, and the possible replacement of the initial allele if the second mutant is fitter. Overall, loss of weaker adaptive alleles during a first selective sweep has a larger impact on preventing fixation of both mutations in highly selfing organisms. Furthermore, the presence of linked mutations has two opposing effects on Haldane’s Sieve. First, recessive mutants are disproportionally likely to be lost in outcrossers, so it is likelier that dominant mutations will fix. Second, with elevated rates of adaptive mutation, selective interference annuls the advantage in selfing organisms of not suffering from Haldane’s Sieve; outcrossing organisms are more able to fix weak beneficial mutations of any dominance value. Overall, weakened recombination effects can greatly limit adaptation in selfing organisms.
An investigation of antecedents and consequences of brand love in India
Authors: Garg Ruchi , Mukherjee Jaydeep , Biswas Soumendu , Kataria Aarti 
Published: September 2015

Purpose– The purpose of this paper is to explore the factors that drive consumer love toward a brand and the opportunities a consumer’s love create for a brand in India.Design/methodology/approach– A total of 23 in-depth interviews were conducted with consumers. The interview transcripts were analyzed through thematic analysis using qualitative software Nvivo10.Findings– This paper proposes a conceptual model where respect, brand experience, and brand reputation have been identified as factors driving brand love and affective commitment, consumer citizenship behavior, repurchases intention, consumer forgiveness, and attitude toward the extension as outcomes of brand love.Practical implications– Consumers bond with brand helps in mitigating the feelings of transgressions by the brand, and also protects brand from negative word of mouth. Consumers who are in love with a brand show positive attitude toward its extensions. These results provide pointers to brand managers on how to protect and expand the business.Originality/value– The extant brand love research seems to be solely in the western context. To the best of the author’s knowledge, this is the first study of its kind that empirically investigates antecedents and consequences of brand love in India.
Influencing the willingness to pay for private labels: the role of branding
Authors: Thanasuta Kandapa , Metharom Pinrada 
Published: September 2015

Purpose
– The purpose of this paper is to investigate the direct and indirect relationships between brands’ marketing activities and consumers’ willingness to pay (WTP) for private labels (PLs) through the effect of perceived quality in different cultural contexts. This paper also provides a broader perspective by incorporating the effect of branding strategy on such relationships.

Design/methodology/approach
– Thailand is the studied market. In all, 819 respondents evaluated two PLs through mall interception in a leading supermarket in Bangkok. A structural equation model is used to evaluate the relationships among the constructs.

Findings
– The results demonstrate that sales promotions directly and indirectly influence WTP, whereas only an indirect relationship through perceived quality exists for the similarity of PL and national-brand packaging. The strength of sales promotions and the perceived quality relationship is significantly stronger for “other-name” PL than for “own-name” one. Perceived quality contributes as the factor with the most influence on WTP.

Research limitations/implications
– PLs should continue to invest in package improvement to increase their perceived quality. The brand must carefully choose which promotional tools to implement because such tools have both positive and negative impacts. Promotions from “other-name” brands should be emphasized because they have a stronger, more positive effect on perceived quality.

Originality/value
– This paper’s contribution is its attempt to identify the reciprocal influence of WTP on PLs, which previously has been studied only as it relates to national brands. The moderating role of branding is introduced to offer insights into the influencing factors.
Exploring luxury brand country of origin impact on purchasing behaviors in India
Authors: Schultz Don , Jain Varsha 
Published: September 2015

Purpose– Luxury brands’ marketing efforts have traditionally focussed on developed nations since that has comprised the majority of consumer demand. However, double-digit growth in developing nations such as India and China, have attracted the attention of most luxury brand managers. Using cue utilization theory, the authors conducted a qualitative study in two phases comprised of first, focus group discussions (FGD), structured observations (SO) and second, In-Depth Interviews (IDI) to understand the effects of country of origin (COO) on Indian consumers’ current day purchasing behaviors with luxury products. The paper aims to discuss these issues.Design/methodology/approach– Using cue utilization theory, the authors conducted a qualitative study in two phases comprised of first, FGD, SO and second, IDI to understand the effects of COO on Indian consumers’ current day purchasing behaviors with luxury products. A conceptual framework has been developed that should help luxury brands formulate marketing strategies for this booming market.Findings– Further, this study found that COO affects the exploration of luxury brands and this process is carried out digitally and primarily with friends. Luxury brand managers can insert detailed information about COO on web sites and can understand the keywords used in the search engines to facilitate consumers using appropriate consideration data. This research also found that COO is compared on the basis of quality, features and innovation.Research limitations/implications– The results of this study are only from one emerging country, i.e., India. Similar studies should be carried out in other emerging nations. Additionally, developed countries can also carry out comprehensive research in this domain as their behavior is also changing for COO and luxury brands.Originality/value– This insight can be used by the brand managers and they can develop apps and web sites that would help the consumers to compare the COO for their products. Additionally, this research found that COO helps the luxury consumers to evaluate the brands and how they associate it with consumer images. Luxury brand managers need to be conscious when their countries products/ brands have been rated low by the consumers as it could result in consumers simply discarding them from their consideration set.
Explicating consumer segmentation and brand positioning in the Islamic financial services industry
Authors: Muhamad Rusnah , Alwi Sharifah 
Published: September 2015

Purpose– The purpose of this paper is to discuss how the current research on the Islamic financial services industry attempts to classify its consumers and provide a fresh and critical insight into the retail Islamic banking market segmentation to harness and enhance understanding, as well as provide a guideline for a better segmentation to bank marketers.Design/methodology/approach– This study is conceptual in nature. Based on Qur’anic verses and previous literature, the authors aim to propose an applicable model of market segmentation for the retail Islamic banking market in Malaysia. Consumer segmentation in the conventional financial service industry is analysed, and prior studies on the selection criteria of Islamic banks are evaluated.Findings– In moving forward, taking cue from the classification of people in classical doctrinal and historical literature and the initial exploratory study conducted from the managerial perspective, the authors propose five cluster groups of consumers for the retail Islamic banking market in Malaysia, namely, religious conviction, religious and economic rationality, economic rationality, ethical observant and economic rationality and ethical observant. A discussion linking consumer segmentation to the branding in the retail Islamic banking market is discussed.Research limitations/implications– The five cluster groups of consumers for the retail Islamic banking market in Malaysia proposed in this study pave the way for embarking on promising and relevant future research, which is needed to substantiate and enrich the academic understanding and managerial practice of linking market segmentation and brand positioning for Islamic banking market in Malaysia. Future research should focus on verifying the five proposed segments by conducting empirical studies on a larger scale among the retail banking consumers in Malaysia and globally.Practical implications– The study provides an initial bases or dimensions of consumers of the retail Islamic banking market in Malaysia. The proposed consumers segments are useful in guiding the management of Islamic bank in Malaysia in making decisions relating to the promotion strategy as well as product and brand positioning strategy.Originality/value– For both academia and the Islamic banking industry, this study provides useful knowledge in strategically using market segmentation to position Islamic banking products and services in Malaysia and the global market.
Business models for product-oriented house-building companies – experience from two Swedish case studies
Authors: Lessing Jerker , Brege Staffan 
Published: September 2015

Purpose– The purpose of this study is to describe and analyse the business model of product-oriented house-building companies and, hence, bridging the gap of knowledge on this topic. Product-orientation implies an alternative approach to house-building, requiring new knowledge about business models and its characteristics. The balance and fit between the main business model dimensions is specifically focused on to emphasise the importance of a holistic approach.Design/methodology/approach– This study is based on a case study with two leading Swedish, product-oriented house-building companies. Semi-structured interviews with company executives, document studies, site and factory visits, along with seminars at the companies are the main data sources. Theories on business models and product orientation form the theoretical foundation for the study.Findings– The case studies describe two successful companies that used end-customer knowledge to identify a target segment, develop an offering and sequentially increase control over the production and supply chain, with limited investments. This indicates that a market-based outside-in perspective is a successful approach to establish viable house-building concepts with a balance between the business model’s dimensions.Practical implications– The knowledge brought forward in this study is beneficial for practitioners that can learn about product-oriented house-building and how this must be reflected in the company’s business model to be successfully applied.Social implications– The study brings forward knowledge about house-building business models that can contribute to increased house-building targeted on certain customer segments. This can be beneficial in terms of decreased costs and increased volumes of new-built, high-quality homes for a variety of customers on the market.Originality/value– Business models for product-oriented house-building companies are a scarcely covered topic in previous research, and hence, this study provides knowledge of interest for both researchers and practitioners. The case studies reveal unique information of how two companies developed their successful concepts.