Medicine RSS Search Engine

Biomedical Engineering

This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 13.

Iterative Learning for Reference-Guided DNA Sequence Assembly From Short Reads: Algorithms and Limits of Performance
Recent emergence of next-generation DNA sequencing technology has enabled acquisition of genetic information at unprecedented scales. In order to determine the genetic blueprint of an organism, sequencing platforms typically employ the shotgun sequencing strategy to oversample the target genome with a library of relatively short overlapping reads. The order of nucleotides in the reads is determined by processing the acquired noisy signals generated by the sequencing instrument. Assembly of a genome from potentially erroneous short reads is a computationally daunting task even when a reference genome exists. Errors and gaps...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

Independent Vector Analysis: Identification Conditions and Performance Bounds
Recently, an extension of independent component analysis (ICA) from one to multiple datasets, termed independent vector analysis (IVA), has been a subject of significant research interest. IVA has also been shown to be a generalization of Hotelling's canonical correlation analysis. In this paper, we provide the identification conditions for a general IVA formulation, which accounts for linear, nonlinear, and sample-to-sample dependencies. The identification conditions are a generalization of previous results for ICA and for IVA when samples are independently and identically distributed. Furthermore, a principal aim of IVA ...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

A Novel Family of Adaptive Filtering Algorithms Based on the Logarithmic Cost
We introduce a novel family of adaptive filtering algorithms based on a relative logarithmic cost inspired by the “competitive methods” from the online learning literature. The competitive or regret based approaches stabilize or improve the convergence performance of adaptive algorithms through relative cost functions. The new family elegantly and gradually adjusts the conventional cost functions in its optimization based on the error amount. We introduce important members of this family of algorithms such as the least mean logarithmic square (LMLS) and least logarithmic absolute difference (LLAD) algorithms....
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

A Peak Synchronization Measure for Multiple Signals
Peaks signify important events in a signal. In a pair of signals how peaks are occurring with mutual correspondence may offer us significant insights into the mutual interdependence between the two signals based on important events. In this work we proposed a novel synchronization measure between two signals, called peak synchronization, which measures the simultaneity of occurrence of peaks in the signals. We subsequently generalized it to more than two signals. We showed that our measure of synchronization is largely independent of the underlying parameter values. A time complexity analysis of the algorithm has also been...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

Joint Local Quantization and Linear Cooperation in Spectrum Sensing for Cognitive Radio Networks
In designing cognitive radio networks (CRNs), protecting the license holders from harmful interference while maintaining acceptable quality-of-service (QoS) levels for the secondary users is a challenge effectively mitigated by cooperative spectrum sensing schemes. In this paper, cooperative spectrum sensing in CRNs is studied as a three-phase process composed of local sensing, reporting, and decision/data fusion. Then, a significant tradeoff in designing the reporting phase, i.e., the effect of the number of bits used in local sensing quantization on the overall sensing performance, is identified and formulated. In additi...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

Hierarchical Infinite Divisibility for Multiscale Shrinkage
A new shrinkage-based construction is developed for a compressible vector ${mmb x}inBBR^{n}$, for cases in which the components of ${mmb x}$ are naturally associated with a tree structure. Important examples are when ${mmb x}$ corresponds to the coefficients of a wavelet or block-DCT representation of data. The method we consider in detail, and for which numerical results are presented, is based on the gamma distribution. The gamma distribution is a heavy-tailed distribution that is infinitely divisible, and these characteristics are leveraged within the model. We further demonstrate that the general framework is appropria...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

Parameter Estimation of 2D Multi-Component Polynomial Phase Signals: An Application to SAR Imaging of Moving Targets
Polynomial-phase signals (PPS) appear in a variety of applications and several algorithms are available to estimate their parameters in the presence of noise. Among the available tools, the product high order ambiguity function (PHAF) has the merit of performing well in the presence of a superposition of PPS's. In this work, we generalize the PHAF to handle two-dimensional PPS's. Then we show an example of application motivating such an extension: the high resolution imaging of moving targets from synthetic aperture radars (SAR). Using the 2D-PHAF, we will propose an algorithm that compensates jointly for the range cell mi...
Source: IEEE Transactions on Signal Processing - August 8, 2014 Category: Biomedical Engineering Source Type: research

Calibration and segmentation of skin areas in hyperspectral imaging for the needs of dermatology
Conclusions: The obtained results confirm the usefulness of the applied method for image analysis and processing in dermatological practice. In particular, it is useful in the quantitative evaluation of skin lesions. Such analysis can be performed fully automatically without operator's intervention. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - August 8, 2014 Category: Biomedical Engineering Authors: Robert KoprowskiSlawomir Wilczy¿skiZygmunt WróbelBarbara B¿o¿ska-Fajfrowska Source Type: research

Failure mode and effects analysis applied to the maintenance and repair of anesthetic equipment in an austere medical environment
Conclusions This study demonstrates the feasibility of using the failure mode and effects analysis approach to improve implementation of technology in austere medical environments. (Source: International Journal for Quality in Health Care)
Source: International Journal for Quality in Health Care - August 8, 2014 Category: Global & Universal Authors: Rosen, M. A., Lee, B. H., Sampson, J. B., Koka, R., Chima, A. M., Ogbuagu, O. U., Marx, M. K., Kamara, T. B., Koroma, M., Jackson, E. V. Tags: Papers Source Type: research

A time-frequency approach to estimate critical time intervals in postural control.
Abstract The critical time interval (CTI) is a parameter that has been used to distinguish open-loop from closed-loop control during upright stance. The aim of this study was to develop a new method to determine CTIs. The new approach, termed the intermittent critical time interval (ICTI) method, was motivated from evidence that upright standing is an intermittent rather than an asymptotic stability control process. For this ICTI method, center-of-pressure time series are first transformed to the time-frequency domain with a wavelet method. Subsequently, the CTI is assumed equal to the time span between two local m...
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 8, 2014 Category: Biomedical Engineering Authors: Zhang H, Nussbaum MA, Agnew MJ Tags: Comput Methods Biomech Biomed Engin Source Type: research

Acoustic Estimation of Neck Fluid Volume.
In this study, we developed a novel approach for non-invasive estimation of NFV from acoustic measurements. Twenty-eight healthy subjects lay awake and supine for 90 min while NFV and tracheal sounds were measured simultaneously using bioimpedance and a microphone, respectively. Sets of tracheal sound features were calculated in time and frequency domains and were reduced using methods based on regression and minimum-redundancy-maximum-relevance. The resulting feature sets were applied to a multi-linear regression and a mixture-density neural network to estimate NFV. Our results show very small relative estimation errors ...
Source: Annals of Biomedical Engineering - August 8, 2014 Category: Biomedical Engineering Authors: Yadollahi A, Rudzicz F, Mahallati S, Coimbra M, Bradley TD Tags: Ann Biomed Eng Source Type: research

Pregnancy-Induced Remodeling of Collagen Architecture and Content in the Mitral Valve.
This study has shown that the mitral valve is strongly adaptive during pregnancy, with significant changes in size, collagen content and architecture in response to rapidly changing demands. PMID: 25103603 [PubMed - as supplied by publisher] (Source: Annals of Biomedical Engineering)
Source: Annals of Biomedical Engineering - August 8, 2014 Category: Biomedical Engineering Authors: Pierlot CM, Lee JM, Amini R, Sacks MS, Wells SM Tags: Ann Biomed Eng Source Type: research

Fabrication of carbon nanotube-polyimide composite hollow microneedles for transdermal drug delivery.
Abstract We introduce a novel method for fabricating hollow microneedles for transdermal drug delivery using a composite of vertically-aligned carbon nanotubes and polyimide. Patterned bundles of carbon nanotubes are used as a porous scaffold for defining the microneedle geometry. Polyimide resin is wicked through the carbon nanotube scaffold to reinforce the structure and provide the prerequisite strength for achieving skin penetration. The high aspect ratio and bottom-up assembly of carbon nanotubes allow the structure of the microneedles to be created in a single step of nanotube fabrication, providing a simple,...
Source: Biomedical Microdevices - August 7, 2014 Category: Biomedical Engineering Authors: Lyon BJ, Aria AI, Gharib M Tags: Biomed Microdevices Source Type: research

Enhanced global mathematical model for studying cerebral venous blood flow
Here we extend the global, closed-loop, mathematical model for the cardiovascular system in: Müller, L.O and Toro, E.F. A global multiscale mathematical model for the human circulation with emphasis on the venous system. International Journal for Numerical Methods in Biomedical Engineering, 30:681–725, 2014,, to account for fundamental mechanisms affecting cerebral venous haemodynamics: the interaction between intracranial pressure and cerebral vasculature and the Starling-resistor like behaviour of intracranial veins. (Source: Journal of Biomechanics)
Source: Journal of Biomechanics - August 7, 2014 Category: Biomedical Science Authors: Lucas O. Müller, Eleuterio F. Toro Source Type: research

Production of alkyl esters from macaw palm oil by a sequential hydrolysis/esterification process using heterogeneous biocatalysts: optimization by response surface methodology.
Abstract The present study deals with the enzymatic synthesis of alkyl esters with emollient properties by a sequential hydrolysis/esterification process (hydroesterification) using unrefined macaw palm oil from pulp seeds (MPPO) as feedstock. Crude enzymatic extract from dormant castor bean seeds was used as biocatalyst in the production of free fatty acids (FFA) by hydrolysis of MPPO. Esterification of purified FFA with several alcohols in heptane medium was catalyzed by immobilized Thermomyces lanuginosus lipase (TLL) on poly-hydroxybutyrate (PHB) particles. Under optimal experimental conditions (mass ratio oil:...
Source: Bioprocess and Biosystems Engineering - August 7, 2014 Category: Biomedical Engineering Authors: Bressani AP, Garcia KC, Hirata DB, Mendes AA Tags: Bioprocess Biosyst Eng Source Type: research

Asymmetric Cell-Matrix and Biomechanical Abnormalities in Elastin Insufficiency Induced Aortopathy.
Abstract Aortopathy is characterized by vascular smooth muscle cell (VSMC) abnormalities and elastic fiber fragmentation. Elastin insufficient (Eln (+/-) ) mice demonstrate latent aortopathy similar to human disease. We hypothesized that aortopathy manifests primarily in the aorto-pulmonary septal (APS) side of the thoracic aorta due to asymmetric cardiac neural crest (CNC) distribution. Anatomic (aortic root vs. ascending aorta) and molecular (APS vs. non-APS) regions of proximal aorta tissue were examined in adult and aged wild type (WT) and mutant (Eln (+/-) ) mice. CNC, VSMCs, elastic fiber architecture, proteo...
Source: Annals of Biomedical Engineering - August 7, 2014 Category: Biomedical Engineering Authors: Krishnamurthy VK, Evans AN, Wansapura JP, Osinska H, Maddy KE, Biechler SV, Narmoneva DA, Goodwin RL, Hinton RB Tags: Ann Biomed Eng Source Type: research

Finite element analysis of three commonly used external fixation devices for treating Type III pilon fractures
Pilon fractures are commonly caused by high energy trauma and can result in long-term immobilization of patients. The use of an external fixator i.e. the (1) Delta, (2) Mitkovic or (3) Unilateral frame for treating type III pilon fractures is generally recommended by many experts owing to the stability provided by these constructs. This allows this type of fracture to heal quickly whilst permitting early mobilization. However, the stability of one fixator over the other has not been previously demonstrated. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 7, 2014 Category: Biomedical Engineering Authors: Muhammad Hanif Ramlee, Mohammed Rafiq Abdul Kadir, Malliga Raman Murali, Tunku Kamarul Source Type: research

Low-Intensity Pulsed Ultrasound Activates Integrin-Mediated Mechanotransduction Pathway in Synovial Cells.
In conclusion, LIPUS exposure might be involved in cell apoptosis and survival of synovial membrane cells via integrin/FAK/MAPK pathway. PMID: 25096496 [PubMed - as supplied by publisher] (Source: Annals of Biomedical Engineering)
Source: Annals of Biomedical Engineering - August 6, 2014 Category: Biomedical Engineering Authors: Sato M, Nagata K, Kuroda S, Horiuchi S, Nakamura T, Karima M, Inubushi T, Tanaka E Tags: Ann Biomed Eng Source Type: research

First in vivo application and evaluation of a novel method for non-invasive estimation of cardiac output
Surgical or critically ill patients often require continuous assessment of cardiac output (CO) for diagnostic purposes or for guiding therapeutic interventions. A new method of non-invasive CO estimation has been recently developed, which is based on pressure wave analysis. However, its validity has been examined only in silico. Aim of this study was to evaluate in vivo the reproducibility and accuracy of the “systolic volume balance” method (SVB). Twenty two subjects underwent 2-D transthoracic echocardiography for CO measurement (reference value of CO). (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 6, 2014 Category: Biomedical Engineering Authors: Theodore G. Papaioannou, Dimitrios Soulis, Orestis Vardoulis, Athanase Protogerou, Petros P. Sfikakis, Nikolaos Stergiopulos, Christodoulos Stefanadis Source Type: research

Multiresolution generalized N dimension PCA for ultrasound image denoising
Conclusion: Experimental results show that the proposed method achieved the lowest noise interference and improved image quality by reducing noise and preserving the structure. Our method is also robust for the image with a much higher level of speckle noise. For clinical images, the results show that MR-GND-PCA can reduce speckle and preserve resolvable details. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - August 5, 2014 Category: Biomedical Engineering Authors: Danni AiJian YangYang ChenWeijian CongJingfan FanYongtian Wang Source Type: research

Nuclear medicine training and practice in Poland.
Abstract In Poland, nuclear medicine (NM) has been an independent specialty since 1988. At the end of 2013, the syllabus for postgraduate specialization in NM has been modified to be in close accordance with the syllabus approved by the European Union of Medical Specialists and is expected to be enforced before the end of 2014. The National Consultant in Nuclear Medicine is responsible for the specialization program in NM. The Medical Center of Postgraduate Training is the administrative body which accepts the specialization programs, supervises the training, organizes the examinations, and awards the specialist ti...
Source: Molecular Medicine - August 5, 2014 Category: Molecular Biology Authors: Teresińska A, Birkenfeld B, Królicki L, Dziuk M Tags: Eur J Nucl Med Mol Imaging Source Type: research

Multiplicity of steady states in a bioreactor during the production of 1,3-propanediol by Clostridium butyricum.
Abstract In recent decades, the production of compounds from microorganisms has increased significantly. Glycerol as a source of substrate appears to have great potential, due to its large supply because of the increase in biodiesel production. This paper will discuss the multiplicity of steady states for the production of 1,3-propanediol from glycerol by Clostridium butyricum, employing a model that takes into account inhibition by fermentation products. The theoretical study of bifurcation enabled us to make a qualitative adjustment to the various experimental steady states, using the theoretical steady states ob...
Source: Bioprocess and Biosystems Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Silva JP, Almeida YB, Pinheiro IO, Knoelchelmann A, Silva JM Tags: Bioprocess Biosyst Eng Source Type: research

Biosynthesis of high-purity γ-MnS nanoparticle by newly isolated Clostridiaceae sp. and its properties characterization.
Abstract MnS is a p-type semiconductor with both antiferromagnetism and wide band gap, endowing it potential applications for short wavelength optoelectronic devices, solar cells and luminescent materials. Despite successful biosynthesis of nano CdS, PbS and ZnS with extremely low solubility product, there have been no reports available on biosynthesis of nano MnS so far because both PO4 (3-) and OH(-) negatively disturb reaction between Mn(2+) and S(2-) through forming Mn3(PO4)2 and Mn(OH)2 as undesirable impurities. In this work, high-purity MnS nanocrystals were synthesized in presence of newly isolated Clostrid...
Source: Bioprocess and Biosystems Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Liu X, Wang J, Yue L, Xin B, Chen S, Dai J, Wang R, Wang Y Tags: Bioprocess Biosyst Eng Source Type: research

Biosynthesis of gold nanoparticles using plant extracts.
Abstract Because of the widespread use of metallic nanoparticles in biology, pharmaceuticals, and medicine, biosynthesis methods are being considered to prepare these nanoparticles. Among biosynthesis methods mentioned in the literature, the use of plant extracts has gained great importance due to the fact that most of the plants are generally inexpensive, available, and nontoxic. Moreover, plant extracts are rich in different types of reducing and capping agents. Therefore, these methods have a high potential for scale-up and can produce nanoparticles in different morphologies. In this paper, different green metho...
Source: Bioprocess and Biosystems Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Noruzi M Tags: Bioprocess Biosyst Eng Source Type: research

Bioprocessing of bagasse hydrolysate for ethanol and xylitol production using thermotolerant yeast.
Abstract Fermentation of xylose-rich and glucose-rich bagasse hydrolysates, obtained from the two-stage acid hydrolysis was studied using the thermotolerant yeast Kluyveromyces sp. IIPE453. The yeast could grow on xylose-rich hydrolysate at 50 °C with the dry cell weight, cell mass yield and maximum specific growth rate of 5.35 g l(-1), 0.58 g g(-1) and 0.13 h(-1), respectively. The yeast was found to be very promising for ethanol as well as xylitol production from the sugars obtained from the lignocellulosic biomass. Batch fermentations of xylose-rich and glucose-rich hydrolysates yielded 0.61 g g(-1) xyl...
Source: Bioprocess and Biosystems Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Kumar S, Dheeran P, Singh SP, Mishra IM, Adhikari DK Tags: Bioprocess Biosyst Eng Source Type: research

Photoplethysmograph Signal Reconstruction Based on a Novel Hybrid Motion Artifact Detection-Reduction Approach. Part I: Motion and Noise Artifact Detection.
We present a MNA detection method which can provide a clean vs. corrupted decision on each successive PPG segment. For motion artifact detection, we compute four time-domain parameters: (1) standard deviation of peak-to-peak intervals (2) standard deviation of peak-to-peak amplitudes (3) standard deviation of systolic and diastolic interval ratios, and (4) mean standard deviation of pulse shape. We have adopted a support vector machine (SVM) which takes these parameters from clean and corrupted PPG signals and builds a decision boundary to classify them. We apply several distinct features of the PPG data to enhance classif...
Source: Annals of Biomedical Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Chong JW, Dao DK, Salehizadeh SM, McManus DD, Darling CE, Chon KH, Mendelson Y Tags: Ann Biomed Eng Source Type: research

Towards the Feasibility of Using Ultrasound to Determine Mechanical Properties of Tissues in a Bioreactor.
In this study, we sought to determine whether the mechanical properties of samples, with unknown volume fractions could be predicted by US. Aggregate moduli were calculated for hydrogels as a function of SOS, based on concentration and density using a poroelastic model. The data were used to train a statistical model, which we then used to predict volume fractions and mechanical properties of unknown samples. Young's and storage moduli were measured mechanically. The statistical model generally predicted the Young's moduli in compression to within <10% of their mechanically measured value. We defined positive linear cor...
Source: Annals of Biomedical Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Mansour JM, Gu DW, Chung CY, Heebner J, Althans J, Abdalian S, Schluchter MD, Liu Y, Welter JF Tags: Ann Biomed Eng Source Type: research

Geometric and Flow Features of Type B Aortic Dissection: Initial Findings and Comparison of Medically Treated and Stented Cases.
This study includes eight type B dissection cases, with four in each group. Aortic flow analyses were carried out based on patient-specific anatomy at initial presentation before treatment. Comparisons between the two groups show that the false lumen to true lumen volume ratio is considerably higher in patients selected for TEVAR. Results from the four medically treated cases indicate that the size of the primary entry tear is the key determinant of the false lumen flow rate, which may influence the long-term outcome of medically treated patients. Potential relations between flow related parameters based on initial anatomy...
Source: Annals of Biomedical Engineering - August 5, 2014 Category: Biomedical Engineering Authors: Cheng Z, Wood NB, Gibbs RG, Xu XY Tags: Ann Biomed Eng Source Type: research

The effect of muscle weakness on the capability gap during gross motor function: a simulation study supporting design criteria for exoskeletons of the lower limb
Conclusions: The present workflow allows estimating the AAN during ADL for different levels of muscle weakness, which can be used in the mechatronic design and control of powered exoskeletons. The AAN approach is a more physiological approach than the ID approach, since the MM accounts for the subject-specific capabilities of the user. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - August 4, 2014 Category: Biomedical Engineering Authors: Maarten AfschriftFriedl De GrooteJoris De SchutterIlse Jonkers Source Type: research

Simulation of carbon dioxide insufflation via a diffuser in an open surgical wound model
Intraoperative insufflation of the open surgical wound with carbon dioxide (CO2) has been used for several decades to de-air the open chest wound in open heart surgical procedures including cardiac valve surgery. More recently, it has been proposed as a convenient intraoperative method to reduce the incidence of postoperative surgical site infection (SSI), a common severe and costly complication after surgery. CO2 is beneficial in maintaining the temperature in the wound and there is evidence that temperature plays a role in tissue perfusion and oxygenation [1]. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 4, 2014 Category: Biomedical Engineering Authors: John E. Cater, Jan van der Linden Source Type: research

In vitro measurements of velocity and wall shear stress in a novel sequential anastomotic graft design model under pulsatile flow conditions
This study documents the superior hemodynamics of a novel coupled sequential anastomoses (SQA) graft design in comparison with the routine conventional end-to-side (ETS) anastomoses in coronary artery bypass grafts (CABG). The flow fields inside three polydimethylsiloxane (PDMS) models of coronary artery bypass grafts, including the coupled SQA graft design, a conventional ETS anastomosis, and a parallel side-to-side (STS) anastomosis, are investigated under pulsatile flow conditions using particle image velocimetry (PIV). (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 4, 2014 Category: Biomedical Engineering Authors: Foad Kabinejadian, Dhanjoo N. Ghista, Boyang Su, Mercedeh Kaabi Nezhadiana, Leok Poh Chua, Joon Hock Yeo, Hwa Liang Leo Source Type: research

Feasibility results of an electromagnetic compatibility test protocol to evaluate medical devices to radio frequency identification exposure
Conclusions: This work can aid the medical device community in better assessing the risks associated with medical device exposure to RFID. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - August 3, 2014 Category: Biomedical Engineering Authors: Seth SeidmanOmar BekdashJoshua GuagMaryam MehryarPaul BoothPaul Frisch Source Type: research

Hyperspectral venous image quality assessment for optimum illumination range selection based on skin tone characteristics
Conclusion: It is concluded that the wavelength range of 800 to 850 nm serve as the optimum illumination range to get best near infrared venous image quality for each type of skin tone. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - August 3, 2014 Category: Biomedical Engineering Authors: Aamir ShahzadMohamad SaadNicolas WalterAamir MalikFabrice Meriaudeau Source Type: research

Influence of process variables on the properties of laccase biobleached pulps.
Abstract A laccase stage can be used as a pre-treatment of a standard chemical bleaching sequence to reduce environmental concerns associated to this process. The importance of each independent variable and its influence on the properties of the bleached pulp have been studied in depth in this work, using an adaptive network-based fuzzy inference system (ANFIS) with four independent variables (laccase, buffer, mediator and oxygen) as input. Eucalyptus globulus kraft pulp was biobleached using a laccase from Pycnoporus sanguineus and a natural mediator (acetosyringone). Later, an alkaline extraction and a hydrogen p...
Source: Bioprocess and Biosystems Engineering - August 2, 2014 Category: Biomedical Engineering Authors: Martin-Sampedro R, Miranda J, García-Fuentevilla LL, Hernández M, Arias ME, Diaz MJ, Eugenio ME Tags: Bioprocess Biosyst Eng Source Type: research

Representation of fluctuation features in pathological knee joint vibroarthrographic signals using kernel density modeling method
This article applies advanced signal processing and computational methods to study the subtle fluctuations in knee joint vibroarthrographic (VAG) signals. Two new features are extracted to characterize the fluctuations of VAG signals. The fractal scaling index parameter is computed using the detrended fluctuation analysis algorithm to describe the fluctuations associated with intrinsic correlations in the VAG signal. The averaged envelope amplitude feature measures the difference between the upper and lower envelopes averaged over an entire VAG signal. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 2, 2014 Category: Biomedical Engineering Authors: Shanshan Yang, Suxian Cai, Fang Zheng, Yunfeng Wu, Kaizhi Liu, Meihong Wu, Quan Zou, Jian Chen Source Type: research

IEEE Signal Processing Society Information
Provides a listing of current committee members and society officers. (Source: IEEE Transactions on Signal Processing)
Source: IEEE Transactions on Signal Processing - August 1, 2014 Category: Biomedical Engineering Source Type: research

[Blank page - back cover]
This page or pages intentionally left blank. (Source: IEEE Transactions on Signal Processing)
Source: IEEE Transactions on Signal Processing - August 1, 2014 Category: Biomedical Engineering Source Type: research