gebhart/patrepeval huggingface dataset:
Stable and High-Efficiency Wireless Power Transfer System for Robotic Capsule Using a Modified Helmholtz Coil (2016)

Magnetic resonance-based wireless power transfer system offers a promising solution to overcome power limitations typically encountered by capsule endoscopy. Despite of much attention in this area, aspects such as power stability and power transfer efficiency remain suboptimal and therefore investigation for further improvement is still required. This paper presents a method to improve power stability as well as power transfer efficiency for wireless capsule endoscopy. A new power transmission coil capable of producing uniform magnetic field is proposed to improve power stability through uniform field that at the same time minimizes the unnecessary peak electromagnetic exposure. To improve power transfer efficiency, a mixed resonance scheme is employed. Our experimental results show improvement over existing methods where the proposed system attained power stability of 94.62% and power transfer efficiency of 4.9% under worst position of the receiving coil. Furthermore, the proposed transmitting coil provides additional advantage, where it minimized the unnecessary peak electromagnetic exposure by 26% as compared to the conventional Helmholtz coil-based system. We believe the proposed system will open new direction for future wireless capsule endoscopy and can also be useful in other industrial applications.
A Multi-Scale Heart Simulation on Massively Parallel Computers (2010)

To understand the macroscopic function of the human heart based on sub-cellular microscopic events, multiscale analysis is indispensable. Our heart simulator uses the so-called homogenization method, where both the human heart and the myocardial cells are modeled and solved simultaneously by the finite element method. Because the contraction and deformation of each finite element in the heart model are governed by their respective cell model, the NDOF of all the cells becomes prohibitively large. Furthermore, the phenomena are highly nonlinear and transient. This challenging problem has been tackled by our group for many years, and a novel algorithm to accelerate the computation was implemented in the code. We have recently tested its performance using the T2K Open Supercomputer (Tokyo). A pulsation of the heart with a total NDOF of 160 million was successfully simulated using 6144 CPU cores in ten hours. Scalability and other computational performances were measured and are discussed.
Occurrence of Biologically Active Isocitric Acid in Cultures of Yeasts (1968)

Journal Article Occurrence of Biologically Active Isocitric Acid in Cultures of Yeasts Get access Matazo Abe, Matazo Abe Laboratory of Industrial Microbiology, Faculty of Agriculture, Tokyo University of Education Search for other works by this author on: Oxford Academic Google Scholar Takeshi Tabuchi Takeshi Tabuchi Laboratory of Industrial Microbiology, Faculty of Agriculture, Tokyo University of Education Search for other works by this author on: Oxford Academic Google Scholar Agricultural and Biological Chemistry, Volume 32, Issue 3, 1 March 1968, Pages 392–393, https://doi.org/10.1080/00021369.1968.10859065 Published: 01 March 1968 Article history Received: 29 January 1968 Published: 01 March 1968
The device of research on relay contact reliability (2002)

A device for research into relay contact reliability is described. Since 64 pairs of contacts may be monitored at the same time, the device can be used to statistically research the contact resistance of relay contacts. The contact drop of all the contacts can be measured periodically and automatically, and thus the device may be used to investigate the variations of contact resistance throughout the life of the test relays. The device can also be used for reliability tests, since contact drop and open circuit voltage are measured at every operation. Failure occurs if the contact drop is too high or the open circuit voltage is too low. Test results and the method of data processing are discussed and analyzed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Genetic analysis of indian bovine viral diarrhea virus 1 isolates in N(pro) and entire gene region coding structural proteins. (2006)

Three Indian Bovine viral diarrhea virus 1 (BVDV-1) isolates were analyzed at genetic level in N(pro) (viral autoprotease) and entire gene region coding structural proteins, namely capsid (C) protein, E(rns), and envelope proteins E1 and E2. All these isolates were found to be of b subtype based on the entire 504 nt region of N(pro) and 1119 nt region of E2. However, in comparison with other isolates of this subtype, they were allocated inside the BVDV-1 subtype b cluster to a separate clade with a longer distance. Of six cysteine residues in N(pro) only three were totally conserved in all three isolates. The isolates showed 94.9-99.3% and 92.2-99.0% identities for the entire C-E2 gene region at nucleotide and amino acid levels, respectively. The lowest identity values (88.5-91.7%) were observed for E2 amino acid sequences. The identity of the isolates with Osloss, a reference BVDV-1 subtype b strain, was in the range of 82.1-89.9% for nucleotide and 78.6-89.2% for amino acid sequences in the C-E2 region. The N(pro)/C and E(rns)/E1 cleavage sites were highly conserved. The C/E(rns) and E1/E2 cleavage sites were more conserved from the N-end of E(rns) and the C-end of El, respectively. These findings suggest that some unique mutations have occurred in the described Indian BVDV-1 isolates, though they all belong to the BVDV-1 subtype b.
Noncontinuous Steam Injection Optimization for SAGD Process for Improving Heavy Oil Recovery (2009)

Abstract Several processes for improved oil recovery are thermal and are based on steam injection. Through these methods is possible to heat the reservoir, reducing oil viscosity and increasing the oil-phase mobility, allowing a better oil displacement in reservoir and increasing swept efficiency. Nowadays, one of the most promising thermal recovery technologies is Steam Assisted Gravity Drainage (SAGD). In this process, two horizontal wells, separated by a vertical distance are placed near formation bottom. Horizontal top well is used for steam injection, which creating a steam chamber which grows upper and to surroundings allow heat transfers between steam and oil by conduction. Bottom well is used for oil production. SAGD process appears to be technically attractive, due to the high recovery and highs oil rates and oil-steam ratio. This process was applied in country such U.S.A., Canada and Venezuela. In this work, it was idealized a reservoir with some northeast Brazilian characteristics in a homogeneous model. It was done an optimization of steam rate, in a non continuous form, injected steam for several time periods. For the optimization study was also realized a net present value study and it was compare to a process with continuous steam injection. All the cases studied were done using the software STARS from CMG (Computer Modelling Group). This study showed that, in SAGD process, steam requirement can be reduced by injecting it in a non continuous form, alternating steam injection with stops at several time intervals. It was possible optimized these intervals minimizing heat losses and improving oil recovery. The optimal time interval was found at six months that mean, it can injected steam for six months and then stops the steam injection for next six months. When it was compare to a system with continuous steam injection, was founded that this system had a lower net present value that the system with steam injection with stops. It was founded that was possible to reduce water production, with an improved of oil recovery. In this work was obtain a way to optimized steam rate, minimizing heat losses and increasing net present value, in reservoirs with some Brazilian Northeast Basin characteristics, and that become important, because it is necessary to improved heavy oil recovery with minimal environments damages, and with lower production cost.
The Plastic Flow Behavior of Flocculated Kaolin Suspensions (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Plastic Flow Behavior of Flocculated Kaolin SuspensionsA. S. Michaels and J. C. BolgerCite this: Ind. Eng. Chem. Fundamen. 1962, 1, 3, 153–162Publication Date (Print):August 1, 1962Publication History Published online1 May 2002Published inissue 1 August 1962https://pubs.acs.org/doi/10.1021/i160003a001https://doi.org/10.1021/i160003a001research-articleACS PublicationsRequest reuse permissionsArticle Views646Altmetric-Citations208LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
Identification and characterization of a cDNA derived from multiple splicing that encodes envelope glycoprotein gp105 of human herpesvirus 6 (1995)

The glycoprotein complex gp82-gp105 is a major virion envelope glycoprotein complex of human herpesvirus 6 variant A (HHV-6A) and consists of a number of related polypeptides. Monoclonal antibodies (MAbs) 2D4, 2D6, and 13D6 against this glycoprotein complex neutralized HHV-6A infectivity. We have previously reported the isolation, mapping, and characterization of a portion of the viral genomic DNA fragment encoding the gp82-gp105 complex and the identification of the neutralizing epitope (B. Pfeiffer, Z. N. Berneman, F. Neipel, C. K. Chang, S. Tirwatnapong, and B. Chandran, J. Virol. 67:4611-4620, 1993). This gene was further characterized by the identification of a 2.3-kb genomic fragment and by the identification of a 2.5-kb cDNA clone. The genomic sequence contains a short open reading frame (ORF) encoding the epitope recognized by the MAbs. The identified cDNA showed specificity for HHV-6 in Southern blot analysis with viral DNA. In Northern (RNA) blot analysis with total RNA from HHV-6A(GS)-infected cells, the cDNA insert specifically hybridized with several RNA species. Restriction mapping analysis localized this cDNA to the HHV-6A(U1102) genomic BamHI G fragment, at the right end of the unique long segment of the genome and to the SalI L and SalI O fragments within the left and right terminal direct repeat regions, respectively. In vitro transcription and translation of the cDNA revealed a polypeptide of about 88.5 kDa which was glycosylated in the presence of microsomal membranes to a polypeptide of approximately 104.2 kDa. Both polypeptides were immunoprecipiated by MAb 2D6, verifying the identity of the cDNA as encoding the gp105 in the gp82-gp105 complex. Sequence analysis of the cDNA revealed a large ORF potentially encoding a 650-amino-acid protein with 11 potential N-linked glycosylation sites and 18 cysteine residues. A potential membrane-spanning domain is located only near the amino terminus of the putative protein, indicating that gp105 may be a class 2 glycoprotein. Comparison of the cDNA nucleotide sequence with sequences from HHV-6A(U1102) genomic BamHI G and SalI L fragments revealed that the gene encoding gp105 contains 12 exons, spanning over 20 kb of the viral genome, with intron 1 spanning about 8 kb of genomic DNA. The first exon of the cDNA mapped to the right and left terminal direct repeats, while the other exons mapped within the unique long segment of the genome.(ABSTRACT TRUNCATED AT 400 WORDS)
Predictive Tracking in Vision-based Hand Pose Estimation Using Unscented Kalman Filter and Multi-viewpoint Cameras (2010)

In model-based approach, the hand motion is modeled parametrically, giving a more precise and generic result. It tries to minimize the error between a predefined model of the hand and the observation data. A full DOF hand has at least 27 parameters composed of 6 global (rotation and translation of the hand) and 21 local (finger joint angles). In a model based approach, the hand is represented as a model that describes its characteristics. The models can be classified in three groups: geometric model, statistical model, and physical based model. Geometric model uses various geometric primitives to represent the physical structure of the hand. Examples of geometric model include truncated quadrics On the other hand, statistical models define a hand shape as a variation of a mean model shape A physical based model considers the effect of various forces on the hand pose. Skeletal model covered with B-spline surface Erol et al. classified hand pose estimation and motion tracking methods as either singlehypothesis tracking or multiple hypotheses tracking In the former, the matching error between the model and the observation data is minimized by a best fit search. This technique includes optimization based methods like Gauss Newton (
Site-directed spin labeling of a genetically encoded unnatural amino acid (2009)

The traditional site-directed spin labeling (SDSL) method, which utilizes cysteine residues and sulfhydryl-reactive nitroxide reagents, can be challenging for proteins that contain functionally important native cysteine residues or disulfide bonds. To make SDSL amenable to any protein, we introduce an orthogonal labeling strategy, i.e., one that does not rely on any of the functional groups found in the common 20 amino acids. In this method, the genetically encoded unnatural amino acid p-acetyl-L-phenylalanine (p-AcPhe) is reacted with a hydroxylamine reagent to generate a nitroxide side chain (K1). The utility of this scheme was demonstrated with seven mutants of T4 lysozyme, each containing a single p-AcPhe at a solvent-exposed helix site; the mutants were expressed in amounts qualitatively similar to the wild-type protein. In general, the EPR spectra of the resulting K1 mutants reflect higher nitroxide mobilities than the spectra of analogous mutants containing the more constrained disulfide-linked side chain (R1) commonly used in SDSL. Despite this increased flexibility, site dependence of the EPR spectra suggests that K1 will be a useful sensor of local structure and of conformational changes in solution. Distance measurements between pairs of K1 residues using double electron electron resonance (DEER) spectroscopy indicate that K1 will also be useful for distance mapping.
Rheological Properties of Concentrated, Nonaqueous Silicon Nitride Suspensions (1996)

The rheological properties of nonaqueous silicon nitride powder suspensions have been investigated using steady shear and viscoelastic measurements. The polymeric dispersant, Hypermer KD‐3, adsorbed strongly on the powder surfaces, and colloidally stable, fluid suspensions up to a volume fraction of φ= 0.50 could be prepared. The concentrated suspensions all displayed a shear thinning behavior which could be modeled using the high shear form of the Cross equation. The viscoelastic response at high concentrations was dominated by particle interactions, probably due to interpenetration of the adsorbed polymer layers, and a thickness of the adsorbed Hypermer KD‐3 layer, Δ∼10 nm, was estimated. The volume fraction dependences of the high shear viscosity of three different silicon nitride powders were compared and the differences, analyzed by using a modified Krieger‐Dougherty model, were related to effective volume effects and the physical characteristics of the powders. The significantly lower maximum volume fraction, φ m = 0.47, of the SN E‐10 powder was referred to the narrow particle size distribution and the possibility of an unfavorable particle morphology.
Reactions of cis-[PtCl2(PEt3)2] with silver salts in aqueous solution, in the presence or absence of PEt3 (1984)

Reaction of AgX(X = NO3 or ½SO4) with cis-[PtCl2(PEt3)2] in neutral water affords [Pt2(OH)2(PEt3)4]2+ or [Pt(SO4)(PEt3)2] the latter of which can be isolated from dilute sulphuric acid solutions. In water in the presence of PEt3(2 mol equivalents), [Pt(PEt3)4][PtCl4] gives a mixture of [PtCl(PEt3)3]+ and [Pt(PEt3)4]2+ although the latter gives [PtCl(PEt3)3]+ and [PHEt3]+ on acidification. Addition of 2AgX (X = NO3, O2CMe, ClO4, or ½SO4) to these acidified solutions gives [PtX(PEt3)3]+, although, in aqueous solution, complex equilibria apparently exist between the co-ordinated anion and water. The ions [PtX(PEt3)3]+(X = NO3, ClO4, or O2CMe) can be isolated as their [PF6]– or [ClO4]–(X = ClO4) salts. For X =½SO4, attempts to isolate a product by addition of KPF6 generally led to [PtCl(PEt3)3]+ although on one occasion [Pt(H2O)(PEt3)3]2+ was recovered. Reaction of H2 with [PtY(PEt3)3]n+(Y = HSO4, n= 1; Y = H2O, n= 2) gives [PtH(PEt3)3]2+ which with K2S2O8 gives [PtY(PEt3)3]n+. The isolated complexes have been fully characterised by spectroscopic means and their relevance to systems employed in the photochemical decomposition of water is discussed.
Contraction‐induced muscle damage in humans following calcium channel blocker administration (2002)

Following contraction-induced damage of skeletal muscle there is a loss of calcium homeostasis. Attenuating the damage-induced rise in myocellular calcium concentration may reduce proteolytic activation and attenuate other indices of damage; calcium channel blockers have been shown to be effective in this regard. The effect of administration of a calcium channel blocker (CCB), amlodipine, on indices of muscle damage following a unilateral 'damage protocol', during which subjects performed 300 maximal isokinetic (0.52 rad s(-1)) eccentric contractions with the knee extensors was investigated. The design was a randomized, double-blind crossover. On one occasion, prior to the damage protocol, subjects consumed CCB for 7 days prior to and for 7 days following the damage protocol. Biopsies were taken from the vastus lateralis prior to (baseline) and following the damage protocol at 4 h and 24 h post-damage. Isometric peak knee extensor torque was reduced (P < 0.05) immediately post-, 24 h post- and 48 h post-damage protocol compared to pre-exercise values with no effect of treatment. Desmin disruption was attenuated (P < 0.05) with CCB versus placebo at 4 h post-damage. Z-band streaming was significantly (P < 0.05) elevated compared to baseline at both times post-damage, but was lower with CCB at 4 h (P < 0.05). Damage resulted in increased inflammatory cell (macrophage) infiltration into skeletal muscle at both 4 h and 24 h post-damage, with no effect of CCB. Neutrophil number was elevated by the damage protocol, but was higher at 24 h post-damage in the CCB condition (P < 0.05). Creatine kinase (CK) activity was higher (P < 0.05) at 24 h and 48 h following the damage protocol compared to baseline, with no effect of treatment. In conclusion, the reduction in desmin disruption and Z-band streaming indicates that CCB attenuated, or delayed, the contraction-induced damage to sarcomeric proteins.
Adsorption isotherms of polycyclic aromatic hydrocarbons on asbestos chrysotile by high-pressure liquid chromatography (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAdsorption isotherms of polycyclic aromatic hydrocarbons on asbestos chrysotile by high-pressure liquid chromatographyHugues. Menard, Luc. Noel, Frank M. Kimmerle, Lyne. Tousignant, and Maryse. LambertCite this: Anal. Chem. 1984, 56, 8, 1240–1242Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Published inissue 1 July 1984https://doi.org/10.1021/ac00272a011RIGHTS & PERMISSIONSArticle Views67Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (335 KB) Get e-Alerts Get e-Alerts
Effect of the crosslinking level on the properties of temperature‐sensitive poly(<i>N</i>‐isopropylacrylamide) hydrogels (2003)

Abstract In this study, the effect of the level of crosslinking on the properties of poly( N ‐isopropylacrylamide) (PNIPAAm) hydrogels was investigated in terms of their lower critical solution temperature (LCST), interior morphology, equilibrium swelling, and deswelling and swelling kinetics. The thermal analysis showed that PNIPAAm hydrogels, having a wide range of crosslinking levels, exhibited almost the same LCSTs, and this was different from what the conventional theory would have predicted. Scanning electron micrographs revealed that the interior network structure of the PNIPAAm matrix became more porous with an increase in the level of crosslinking. This more porous matrix provided numerous water channels for water diffusion in or out of the matrix and, therefore, an improved response rate to the external temperature changes during the deswelling process and the swelling process. © 2003 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 582–593, 2003
Characterization of advanced drive system for hybrid electric vehicles (2010)

The electric drive is a key component in a plug-in hybrid electric vehicle (PHEV). The ideal tendency is to use the electric machine over the entire torque/speed range. This paper presents the characterization of the electrical drive suitable for a recently proposed PHEV powertrain, and the design optimization of the electric machine. The newly proposed PHEV powertrain has only one electric machine functioning as either a motor or generator at a time, an energy storage unit consisting of battery and super-capacitor banks for fast charging/discharging during regenerative braking and fast acceleration/ deceleration, and a transmission line consisting of two power split devices and a gearbox. The electric machine must be designed for frequent start/stop, fast acceleration/deceleration, high torque and power densities, and high efficiency at all speeds. The drive system was modeled and characterized by using MATLAB/SIMULINK and PSAT, while the machine design was conducted through electromagnetic field analysis by using ANSYS. The design optimization was carried out for four different electric machines, including a double salient permanent magnet (DSPM) machine, a hybrid excitation DSPM (HEDSPM) machine, and two flux-switching permanent magnet (FSPM) machines of two different pole arrangements. The results show that the 6/7 pole FSPM machine has the best performance.