... orientation of the amide oxygens yielded an interior cavity that is electronegative and hydrophilic Once the conformation of the amide backbone was confirmed, the extension of the backbone beyond the ... NMR resonances in only the complementary hybrid strands in comparison to single hybrid strands and the tripeptide strands alone Two-dimensional NMR (NOESY) studies provided conclusive evidence ... predictable directionality and strength of this noncovalent interaction During the last decade, hydrogen-bonded complexes based on rigid heterocycles with multiple H-bonding donor (D) and acceptor...
Ngày tải lên: 23/03/2014, 12:20
... stages: destruction–coagulation, coagulation–condensation, condensation crystallization Afterthat, Glukhovsky theories were extended by different authors In this theories [3], dissolution of the ... fly ashes show a wide range, depend on the type of coal Fly ash consists primarily of oxides of silicon, aluminum, iron and calcium Magnesium, potassium, sodium, titanium, and sulfur are also ... solution, then the formation of a gel, as the oligomers in the aqueous phase form large networks by condensation After gelation, the system continues to rearrange and reorganize, as the connectivity...
Ngày tải lên: 01/04/2013, 22:46
A WORLD WIDE REVIEW OF THE COMMERCIAL PRODUCTION OF BIODIESEL – A technological, economic and ecological investigation based on case studies pot
... operation Fuel dispensing Fuel storage and distribution Fuel production Feedstock transport Feedstock and fertilizer production Land use changes and cultivation CH4 and CO2 leaks and flares Emissions ... approach that provides the most reduction in exhaust particulates, unburned hydrocarbons, and carbon monoxide It is also the best way to use Biodiesel when its non-toxicity and biodegradability are ... Biodiesel and blends .29 Fig 16: World-wide request for information and response, by country 38 Fig 17: World-wide requests for information and response, by country 41 Fig 18: Capacity and production...
Ngày tải lên: 29/03/2014, 17:20
Báo cáo khoa học: "Unsupervised Topic Identification by Integrating Linguistic and Visual Information Based on Hidden Markov Models" potx
... duration below a certain amplitude level which lasts more than one second Topic Identification based on HMMs We employ HMMs for topic identification, where a hidden state corresponds to a topic and ... Note that actions are supposed to have two levels: [action declaration] means a declaration of beginning a series of actions and [individual action] means an action that is the finest one In this ... They applied the constructed content model to two tasks: information ordering and summarization We differ from this study in that we utilize multimodal features and domain-independent discourse...
Ngày tải lên: 31/03/2014, 01:20
Báo cáo hóa học: "Research Article Joint Signal Detection and Classification Based on First-Order Cyclostationarity For Cognitive Radios" pot
... first-order cyclostationarity -based joint detection and classification algorithm First-Order Cyclostationarity -Based Joint Detection and Classification of FSK and AM Signals The existence and number ... Removal of out-of-band noise and downconversion Discretization and normalization Estimation of the first-order CM magnitude at candidate CFs over the range corresponding to the signal bandwidth normalized ... √ to S and SNR de ned as S/N ) Based on (10), it is straightforward that the magnitude of the first-order CM at CF α is given as A (12) M S+N and depends only on the modulation order M and SNR...
Ngày tải lên: 21/06/2014, 19:20
Báo cáo hóa học: "Research Article Stability and Convergence Results Based on Fixed Point Theory for a Generalized Viscosity Iterative Scheme" pot
... Assumption , f is a contraction on C Assumption , and Q is a self-mapping on W satisfying Assumption Since αk → 0, δk → and εk → as k → ∞ from Assumptions 1 and and K1 is finite, ρk → as k → ∞ and ... system under nonnegative initial conditions, with the |xk − zk | Euclidean metrics de ned by d xk , zk Some De nitions and Background as Preparatory Tools for Section The four subsequent de nitions ... any set C0in ⊂ X convex and bounded, a common set C0 might be de ned for any initial 14 Fixed Point Theory and Applications condition of 4.1 in C00 with a redefinition of the constant M as M sup...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " Bioconjugates of Glucose Oxidase and Gold Nanorods Based on Electrostatic Interaction with Enhanced Thermostability" ppt
... polyelectrolyte and dispersed in mL of phosphate buffer solution (10 mM, pH 7.0) Preparation of GOD/GNRs Bioconjugates The combination of GOD and GNRs was achieved using electrostatic interaction In detail, ... free GOD and washed by phosphate buffer containing Tween 20 The target GOD/GNR bioconjugates were finally dispersed under ultrasonication in 1.5 mL phosphate buffer solution (10 mM, pH 7.0) and stored ... with polycations and at pH \ pI with polyanions can be easily achieved The bioconjugates of GOD and GNRs were fabricated using the electrostatic interaction between GOD and cationic polyelectrolytecoated...
Ngày tải lên: 22/06/2014, 00:20
Báo cáo hóa học: " Research Article Bleimann, Butzer, and Hahn Operators Based on the q-Integers" pdf
... that while Bernstein and Meyer-K¨ nig and Zeller operators based on q-integers depend on a o function de ned on a bounded interval, these new operators are de ned on unbounded intervals Also, ... remainder formula for q-BBH can be written as (3.30) We know that a function is convex on an interval if and only if all second-order divided differences of f are nonnegative From this property and ... That is, depending on the selection of q, rate of convergence of the q-BBH operators is better than the classical one Construction of the operators We first start by recalling some de nitions about...
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: " Research Article Representation of 3D and 4D Objects Based on an Associated Curved Space and a General Coordinate Transformation Invariant Description" potx
... multimedia information and applied visualisation at the National Research Council of Canada His current research interests include content -based description of multimedia and multidimensional objects, ... density) and det(gμν (x)) the determinant of the metric (the metric is a matrix) One should notice that the action is also a scalar and consequently invariant under a GCT The extra factor − det(gμν ... histograms provide a statistical distribution for the invariants: they not depend on the location of the invariants on the object but only on their statistical distribution Such a distribution is invariant...
Ngày tải lên: 22/06/2014, 23:20
Báo cáo hóa học: " Research Article Underwater Noise Modeling and Direction-Finding Based on Heteroscedastic Time Series" docx
... parameters and K is the number of observations In the following section, we consider GARCH -based model for the underwater noise modeling and DOA estimation in a passive sonar 3.1 PROPOSED METHOD Underwater ... estimation not only in non-Gaussian environment but also it could handel heavy tailed and nonstationary processes 3.2 Direction-finding approach A proper model presentation which could best and simply ... models such as GARCH(1, 1), GARCH(2, 1) and others Since information criteria penalize models with additional parameters, the AIC and BIC model order selection criteria are based on parsimony...
Ngày tải lên: 22/06/2014, 23:20
Báo cáo hóa học: " Research Article Simulating Visual Pattern Detection and Brightness Perception Based on Implicit Masking" docx
... Appearance Models, Addison-Wesley, Reading, Mass, USA, 1998 M C Morrone and D C Burr, “Feature detection in human vision: a phase-dependent energy model,” Proceedings of the Royal Society of London B: ... be better than detection,” Vision Research, vol 14, no 10, pp 1039–1042, 1974 J M Foley and G E Legge, “Contrast detection and nearthreshold discrimination in human vision,” Vision Research, vol ... Systems Conference (PICS ’01), pp 9–14, Montreal, Quebec, Canada, April 2001 [6] J Yang, “Approaching a unified model of pattern detection and brightness perception,” in Human Vision and Electronic...
Ngày tải lên: 22/06/2014, 23:20
Báo cáo hóa học: " Segmentation of DNA into Coding and Noncoding Regions Based on Recursive Entropic Segmentation and Stop-Codon Statistics" ppt
... segmentation in finding the borders between coding and noncoding regions A direct comparison between gene-finding and recursive segmentation for finding the borders between coding and noncoding regions ... 12-symbol alphabet and Jensen-Shannon divergence for finding the borders between coding and noncoding regions in DNA The 12-symbol alphabet is based on nucleotide statistics inside codons It is well ... DNA into Coding and Noncoding Regions 83 Table 1: Distribution of stop codons along phases for coding and noncoding DNA regions DNA sequence Sequence length [bp] No stop codons [%] one 40 40 80...
Ngày tải lên: 23/06/2014, 01:20
Báo cáo khoa học: " Identification and prevalence of Ehrlichia chaffeensis infection in Haemaphysalis longicornis ticks from Korea by PCR, sequencing and phylogenetic analysis based on 16S rRNA gene" docx
... primer, EEC and ECB (Genotech, Korea), and 200 ng of template DNA in a total volume of 25 µl The PCR conditions included an initial denaturation at 94 C for followed by 30 cycles of denaturation at ... U.S Department of Defense Global Emerging Infections Surveillance and Response System and Armed Forces Medical Intelligence Center, USA References Anderson BE, Sims KG, Olson JG, Childs JE, Piesman ... were included in the PCR mix described for first round PCR The reaction conditions were as follows; three cycles of denaturation at 94 C for min, annealing at 55 C for min, extension at 72 C...
Ngày tải lên: 07/08/2014, 18:21
Báo cáo khoa học: "Diffuse anorectal melanoma; review of the current diagnostic and treatment aspects based on a case report" doc
... important intellectual content EPM, CNS, BGS, PPP and CKF have made contributions to conception and design CNS contributed to the analysis and interpretation of data All authors read and approved the ... excision and adjuvant radiation is well tolerated and can effectively control local-regional disease while avoiding the functional morbidity of APR [10] The benefits of LE are clear and include ... procedure, minimal impact on bowel function, and no need for a stoma Prophylactic lymph node resection is of no value whereas therapeutic lymph node dissection is indicated only in the presence of...
Ngày tải lên: 09/08/2014, 04:21
báo cáo khoa học: " Transcriptomic identification of candidate genes involved in sunflower responses to chilling and salt stresses based on cDNA microarray analysis" pps
... HD-ZIP), protein kinases and proteinases involved in the regulation of signal transduction and gene expression These regulatory systems have been reported either as dependent or independent on abscisic ... sorts genes according their fold change in over (on the right) and under (on the left) expression conditions independently of the stress condition applied Principal axis retaining 17.2% of total ... availability decreasing cell water potential In order to avoid dehydration, plant responses include solute accumulation, cell wall components modification, and synthesis of protective proteins,...
Ngày tải lên: 12/08/2014, 05:20
approaches to visual feature extraction and fire detection based on digital images
... Introduction, presents the need of problem of fire detection based on computer vision, disadvantages of traditional fire detection systems, and advantages of fire detection based on computer vision ... EARLY FIRE DETECTION BASED ON COMPUTER VISION This chapter presents three models of fire detection based on computer vision: early fire detection in general use-case, early fire detection in weak-light ... implemented (only on color detection and motion detection) The results on the tested videos are shown in Table 4, Table 5; and the evaluation of time performance and total number frames false detection...
Ngày tải lên: 20/01/2015, 21:12
Muscle force estimation and fatigue detection based on sEMG signals
... prolonged and relatively strong muscle activity Therefore, muscle force estimation and fatigue detection are considerably important for biofeedback and HMI of assistive device and rehabilitation ... force estimation approaches will be described in Chapter 4, one is based on sEMG-force relationship, and another is based on the CWT and ANN In addition, a novel fatigue detection method will ... contraction and varying force contraction Implement the force estimation method and fatigue detection approach in realtime and test with online sEMG signals The CWT -based force estimation method...
Ngày tải lên: 10/09/2015, 09:23
Ultra sensitive and selective detection based on oligonucleotide nanoparticle biosensors
... an enzyme -based colorimetric method has been demonstrated for ultrahigh-sensitive detection of single stranded oligonucleotides and long stranded DNA sequences The preliminary detection limit ... use of DNA/NP based methods (colorimetric ones based on Au NP and luminescent ones dependant on upconversion particles) for detection of nucleic acids have been widely reported and reviewed [1, ... 1.4.4 Proteins Highly sensitive detection of protein- based enzymes is of great importance in the development of novel pharmaceuticals and medical diagnostic devices Conventional protein detection...
Ngày tải lên: 10/09/2015, 15:52
esign and fabrication of polarized ingan light emitting diodes and THz polarizer based on subwavelength metallic nanogratings
... diode consisting of an n-type semiconductor and a p-type semiconductor forming a junction Due to the difference in electron and hole concentration on the two sides of the junction, the diffusion ... etching and ion milling are studied and optimized Based on above structure design and process development, a linearly polarized surface emitting InGaN/GaN LED on sapphire substrate was demonstrated, ... directions More recently, the viability of the polarized light source concept based on conventional c-plane GaN -based LEDs has been proven following the demonstration of polarized light emission...
Ngày tải lên: 10/09/2015, 15:53
Improvement in the design and operation of bio reactors and bio separators based on SMB technology
... solutes to be separated along the unit, namely by enforcing weak adsorption conditions in sections and and strong adsorption conditions in sections and By far, three operation modes, i.e., temperature ... optimization, we intend to deepen the understanding of SMBR and its modification processes and provide a wider range of useful operating conditions for decision makers This dissertation is organized ... the design and optimization of SMB for linear system under ideal conditions only However, the complex sorption mechanism of bio-molecules tends to render the system work under nonlinear conditions...
Ngày tải lên: 15/09/2015, 17:10