gebhart/patrepeval huggingface dataset:
Adaptive pulse compression via MMSE estimation (2006)

Radar pulse compression involves the extraction of an estimate of the range profile illuminated by a radar in the presence of noise. A problem inherent to pulse compression is the masking of small targets by large nearby targets due to the range sidelobes that result from standard matched filtering. This paper presents a new approach based upon a minimum mean-square error (MMSE) formulation in which the pulse compression filter for each individual range cell is adaptively estimated from the received signal in order to mitigate the masking interference resulting from matched filtering in the vicinity of large targets. The proposed method is compared with the standard matched filter and least-squares (LS) estimation and is shown to be superior over a variety of stressing scenarios.
Adaptive control for a class of uncertain nonlinear dynamical systems in the presence of high-order actuator dynamics (2017)

Adaptive control is a powerful design methodology to achieve closed-loop system stability in the face of uncertainties resulting from modeling inaccuracies, degraded modes of operation, and changes in system dynamics. Yet, it is well known that the presence of actuator dynamics can seriously limit closed-loop system stability of any adaptive control framework. To address the problem of adaptive control design in the presence of actuator dynamics, we recently introduced a linear matrix inequalities-based adaptive control framework. The key feature of this approach is to reveal the fundamental stability interplay between the parameters of a given actuator dynamics model and the allowable uncertainties in the feedback loop. The contribution of this paper is to generalize our recent work for a class of uncertain nonlinear dynamical systems. Specifically, for a given high-order, linear time-invariant actuator dynamics model, we utilize tools and methods from Lyapunov stability and linear matrix inequalities for the computation of closed-loop system stability limits of adaptive control laws. An illustrative numerical example is also provided to demonstrate the efficacy and the practicality of the proposed design architecture.
Surface Impedance Imaging Technique (2008)

We demonstrate here a surface impedance imaging technique based on sensitive dependence of surface plasmon resonance (SPR) on local surface charge density. By applying a potential modulation to a sensor surface, we are able to simultaneously obtain three images: the dc component and the amplitude and phase of the ac component. The dc image measures local molecular binding activity on the surface, as found in the conventional SPR imaging technique, and the ac images are directly related to the local impedance of the surface. Our experimental data can be analyzed quantitatively in terms of the simple free electron gas model for the sensor surface and the Randles equivalent circuit model for interfacial impedance.
Templating silicon nanowires seeded with oxygen reactive materials (2011)

The nanopatterning of semiconductors and other surfaces in a controlled manor is of a great interest for industrial application. The current technique is a new method of controlling the spatial placement of the growth of nanowires (NWs) seeded with oxygen reactive materials such as aluminum, which is a standard metal in silicon process line. The technique is based about patterning a semiconductor substrate or other like substrate which is capable of forming a semiconductor alloy with an oxygen reactive element during a subsequent annealing step. Moreover, it does not require removal of the patterned compound oxide layer.
Capsular Contracture in Implant-Based Breast Reconstruction (2015)

Therapeutic, IV.
Analyte-responsive holograms for (bio)chemical analysis (2006)

Analyte-responsive holograms comprise a holographic grating embedded in a smart hydrogel film. The grating acts as a reporter that enables analyte induced changes in the thickness of the associated polymer film to be accurately determined. Interaction of these materials with a specific analyte or stimuli leads to a change in the colour, image or brightness of the hologram and these changes can be visualised directly or quantified using a simple colour reader. Analyte-responsive holograms are inexpensive, robust and have proven suitable for detection of a wide range of clinically and industrially important analytes.
Mechanism of benzylselenocyanate inhibition of azoxymethane-induced colon carcinogenesis in F344 rats. (1991)

Benzylselenocyanate (BSC), a novel organoselenium compound, has been found to inhibit azoxymethane (AOM)-induced colon carcinogenesis in rats during initiation. To investigate its mechanism of action, we examined the effects of BSC feeding on the following parameters: (a) metabolism of [14C]AOM to 14CO2 in vivo; (b) metabolic activation of AOM to MAM and of MAM to formic acid and methanol by rat liver microsomes in vitro; and (c) AOM-induced DNA methylation in rat livers and colons. Five-week-old male F344 rats were fed modified (23% corn oil) AIN-76A diets containing 0 (control), 25, or 50 ppm of BSC or benzylthiocyanate (BTC), a sulfur analogue of BSC which does not inhibit the colon carcinogenicity of AOM. After 3 weeks, rats were either sacrificed for the isolation of liver microsomes or were given 15 mg/kg of [14C]AOM s.c. to determine the rate of carcinogen metabolism in vivo. No difference in [14C]AOM metabolism was found between rats fed the BTC diets and those fed the control diet. In contrast, the rate of [14C]AOM metabolism, as determined by exhaled radioactivity, was 2-3 times higher in rats fed the BSC diets. While liver microsomes from rats fed the BTC diets metabolized AOM and MAM at rates not significantly different from those obtained with control liver microsomes, the metabolic activation of AOM as well as of MAM was stimulated severalfold when assayed with liver microsomes from rats fed the BSC diets. An increase in total liver cytochrome P-450 was also observed in the BSC-fed rats. Following the administration of 15 mg/kg AOM, significantly less O6-methylguanine and 7-methylguanine was present in the colon DNA from rats consuming the BSC diets than in rats fed the BTC or control diets. The body weight gains of rats fed the 25- and 50-ppm BSC-containing diets for 3 weeks were less (27 and 43%, respectively) than those of rats fed either the control or BTC-containing diets. These results indicate that dietary BSC significantly induces the hydroxylation of AOM and the oxidation of MAM in rat liver. An increase in the rates of AOM and MAM metabolism in the liver due to enzyme induction by BSC will result in decreased delivery of MAM to the colon via the bloodstream. This will be reflected in decreased DNA alkylation, as observed, and is likely to be a major factor in the inhibition of AOM-induced colon carcinogenesis by BSC.
LEARNING TO PREDICT HUMANOID FALL (2011)

Falls are undesirable in humanoid robots, but also inevitable, especially as robots get deployed in physically interactive human environments. We consider the problem of fall prediction: to predict if the balance controller of a robot can prevent a fall from the robot's current state. A trigger from the fall predictor is used to switch the robot from a balance maintenance mode to a fall control mode. It is desirable for the fall predictor to signal imminent falls with sufficient lead time before the actual fall, while minimizing false alarms. Analytical techniques and intuitive rules fail to satisfy these competing objectives on a large robot that is subjected to strong disturbances and exhibits complex dynamics. We contribute a novel approach to engineer fall data such that existing supervised learning methods can be exploited to achieve reliable prediction. Our method provides parameters to control the tradeoff between the false positive rate and the lead time. Several combinations of parameters yield solutions that improve both the false positive rate and the lead time of hand-coded solutions. Learned solutions are decision lists with typical depths of 5–10, in a 16-dimensional feature space. Experiments are carried out in simulation on an ASIMO-like robot.
Less Damaging Drilling Fluids: Development and Lab Testing (2019)

Abstract The properties of the selected drilling fluid must be carefully planned to have minimal effects on the near-wellbore pore spaces. Proper mixing, monitoring, and maintenance of the drilling fluid throughout the drilling operations are as critical as the careful planning. Solids control equipment should be operated to remove the cuttings and maintain the density and rheological properties consistent. The characteristics of an effective reservoir fluid system include stability at high pressures and temperatures, proper and stable density, good filtration control, ability to transport cuttings, and minimal damage to formation pore spaces, Davidson et al. 1997. Selection of the most suitable drilling fluid additives takes into consideration numerous factors such as downhole conditions (pressure and temperature), formation type and petro physical properties, and the objective of the drilling operation. The experimental work in this paper involved rheological properties, thermal stability, API and HT/HP filtration and acid filter cake removal efficiency. Tangentional flooding showed that water based Mn3O4 drill-in fluid has the highest return permeability compared to the typical drill-in fluids (KCl/CaCO3/Barite and potassium drill-in fluids). Potassium formate drill-in fluid filtrate was not compatible with brine. This incompatibility explained its low return permeability in spite of its low solids content. Oil based drilling fluid was developed and tested with good acceptable results. Filter cake removal efficiency was showing more than 95%, indicating its removable formation damage.
Reflection shear-wave data collected near the principle axes of azimuthal anisotropy (1990)

Abstract The presence of vertically oriented fractures and/or unequal horizontal stresses has created an azimuthally anisotropic earth, in which shear-wave (SH) data collected along the principal axes of the anisotropy display time and reflection amplitude anomalies.Amoco shot two crossing shear-wave (SH) lines that were approximately parallel to the orthogonal principal axes of the azimuthal anisotropy. At the tie point, these crossing SH lines display a time-variant mis-tie. The tie point also displays reflection-coefficient anomalies, attributable to azimuthally dependent shear-wave velocities. Field mapping documented a set of fractures striking N69E which are approximately parallel to the line that exhibited greater traveltimes. Time-variant mis-ties and reflection coefficient anomalies are two of the seismic responses theoretically expected of an azimuthally anisotropic earth, i.e., one in which the shear-wave velocity depends upon the polarization azimuth of the shear wave.
Dual Functional Zwitterionic Fullerene Interlayer for Efficient Inverted Polymer Solar Cells (2015)

Inverted polymer solar cells with a maximum efficiency of 9.23% are fabricated using a dual functional fullerene zwitterion as the cathode interlayer. C60-sulfobetaine acts as an electron acceptor and cathode modification layer. Exceptional insensitivity to interlayer thickness is found with efficiencies exceeding 8%. Slot-die coated solar cells with an organic cathode interlayer have efficiencies of 7.38%.
IL-17A is associated with the breakdown of the blood-brain barrier in relapsing-remitting multiple sclerosis (2019)

IL-17 has been implicated in the pathogenesis of multiple sclerosis (MS). Here, we show that blockade of IL-17A, but not IL-17F, attenuated experimental autoimmune encephalomyelitis (EAE). We further show that IL-17A levels were elevated in the CSF of relapsing-remitting MS (RRMS) patients and that they correlated with the CSF/serum albumin quotient (Qalb), a measure of blood-brain barrier (BBB) dysfunction. We then demonstrated that the combination of IL-17A and IL-6 reduced the expression of tight junction (TJ)-associated genes and disrupted monolayer integrity in the BBB cell line hCMEC/D3. However, unlike IL-17A, IL-6 in the CSF from RRMS patients did not correlate with Qalb. These data highlight the potential importance of targeting IL-17A in preserving BBB integrity in RRMS.
Dynamic projective coordinate system for elliptic curve cryptography (2006)

Scalar multiplication is the basic operation in elliptic curve cryptography that can be performed by many algorithms. These algorithms multiply a scalar value K with an elliptic curve base point P. One of the crucial decisions when implementing an efficient elliptic curve cryptosystem is deciding which point coordinate system to use. The point coordinate system used for addition and doubling of points on the elliptic curve determines the efficiency of these routines, and hence the efficiency of the basic cryptographic operation, scalar multiplication. Although using a fixed coordinate system enhances the performance of the scalar multiplication, (by removing the intermediate inversion operations), it becomes a security weakness since it can be exploited by projective coordinates leak attacks to reveal some secure information. Therefore, finding a coordinate system that can enhance the performance of the scalar multiplication and being secure against such attacks is desired goal. 
This thesis introduces a new approach called Dynamic Projective Coordinate (DPC) system. DPC provides a framework that automates the selection of the projective coordinate system and uses a single mathematical formulation/software code to implement different projective coordinate systems. This framework allows the computing/encrypting device to select the projective coordinate either at random, or according to a certain rule. 
DPC uses dynamic transformation functions to convert coordinates of any point on the elliptic curve to any projective coordinates by using the same mathematical formula. These transformation functions are used to develop dynamic addition and doubling formulas for elliptic curve over the prime field GF(p) and over the binary field GF(2m).
Also, this thesis proposes a new classification method for Side Channel Attacks (SCA). This classification is based on the type of information being leaked which can be Operation-dependent, Data-dependent, Address-dependent or any combination of them. New countermeasures for data-dependent, data-and-operation dependent and address-dependent attacks are proposed. These countermeasures are based on the fact that DPC lends itself to randomize both the data being manipulated and the number of operations being performed by randomizing the coordinate system used.
Experimental and Structural Testing Module to Analyze Paralogue-Specificity and Affinity in the Hsp90 Inhibitors Series (2013)

We here describe the first reported comprehensive analysis of Hsp90 paralogue affinity and selectivity in the clinical Hsp90 inhibitor chemotypes. This has been possible through the development of a versatile experimental assay based on a new FP-probe (16a) that we both describe here. The assay can test rapidly and accurately the binding affinity of all major Hsp90 chemotypes and has a testing range that spans low nanomolar to millimolar binding affinities. We couple this assay with a computational analysis that allows for rationalization of paralogue selectivity and defines not only the major binding modes that relay pan-paralogue binding or, conversely, paralogue selectivity, but also identifies molecular characteristics that impart such features. The methods developed here provide a blueprint for parsing out the contribution of the four Hsp90 paralogues to the perceived biological activity with the current Hsp90 chemotypes and set the ground for the development of paralogue selective inhibitors.
Nano-size effects on CuO/TiO2 catalysts for highly efficient H2 production under solar light irradiation (2013)

Solar light induced interfacial charge transfer of electrons from TiO2 to CuO in a water-glycerol mixture produced 99,823 μmol h(-1) g(-1)catalyst of hydrogen gas. The dispersed CuO/TiO2 photocatalyst in solution exhibited uni-directional electron flow and capture at the Schottky barrier facilitating charge separation and electron transfer resulting in enhanced H2 production performance.
(.+-.)-4-Aryl-4,5-dihydro-3H-1,3-benzodiazepines. 2. Nuclear substituted analogs of (.+-.)-4,5-dihydro-2,3-dimethyl-4-phenyl-3H-1,3-benzodiazepine and (.+-.)-4,5-dihydro-2-ethyl-3-methyl-4-phenyl-3H-1,3-benzodiazepine as potential antidepressant agents (1982)

Antidepressant-like activity, as evidenced by marked inhibition of tetrabenazine-induced ptosis, was previously reported for (+/-)-4,5-dihydro-4-phenyl-3H-1,3-benzodiazepine derivatives. Since optimal antitetrabenazine activity was associated with (+/-)-4,5-dihydro-2,3-dimethyl-4-phenyl-3H-1,3-benzodiazepine (9k, HRP 543) and the 2-ethyl-3-methyl analogue (10k), the synthesis and evaluation of nuclear-substituted derivatives of these two compounds was also investigated. The initial synthesis involved Friedel-Crafts acylation of substituted benzenes with 2-nitrophenylacetyl chloride to afford 1-aryl-2-(2-nitrophenyl)ethanones 2, which were converted in five steps to (+/-)-alpha-aryl-N-methyl-2-nitrobenzeneethanamines 7. Greater flexibility with respect to the introduction of nuclear substituents was achieved by conversion of 2-nitrotoluene derivatives to 2 via acylation of intermediate beta-(dimethylamino)-2-nitrostyrenes with various aroyl chlorides and hydrolysis. Reductive amination of 2 with methylamine and sodium cyanoborohydride afforded 7 directly and significantly reduced the number of synthetic steps. Reduction of 7a-j to diamines 8a-j and cyclization with appropriate ortho esters gave nuclear-substituted analogues of 9k and 10k. Marked antitetrabenazine activity was associated with many of these compounds. Significant enhancement of activity with respect to the unsubstituted analogues 9k and 10k was not observed, with the exception of 9c which appeared to be slightly more potent than 9k.
Extraction of Cesium by Calix[4]arene-crown-6: From Synthesis to Process (2000)

Cesium possesses two long lived isotopes 135Cs and 137Cs, the first one of which has a very long (2.3 x 106 y) half life and is one of the most mobile nuclides that would be present in a nuclear waste repository. In the framework of the French Actinex program, studies are under way to selectively remove Cs from high activity waste (HAW). 135Cs would then be either destroyed by transmutation, or encapsulated in a very specific matrix. As for 137Cs, it is interesting to remove it with strontium and actinides in order to decategorize high salinity medium activity waste (MAW) arising from dismantling of nuclear facilities. Cesium must be removed with a very high selectivity in the first case from a very acidic medium ([HNO3] = 3-4 M), in the second one from acidic liquid waste at high sodium nitrate concentration ([NaNO3] = 2-4 M). Calix[4]arene-crown-6 derivatives in the 1,3-alternate conformation exhibit outstanding efficiency and selectivity for cesium. These exceptional performances, much higher than those obtained with the best crown ethers, achieved on simulated waste were confirmed on a real high activity liquid waste in tests employing liquid-liquid extraction or supported liquid membranes.
Characteristics of a balance-fed L-type loop antenna system for handsets in the vicinity of human head (2000)

Conventional antennas for handset are mostly of the type having unbalanced terminals and being fed by unbalanced lines, so that in almost all cases radiation currents are induced on the conducting materials existing in the handset unit, as well as on the antenna element [1]. These currents on such conducting materials contribute to improvement of the antenna performance, particularly when the antenna element is very small. A design concept up to now has been to use these current positively. However, since these currents are varied by the influence of the operator's hand and/or head, it would cause significant variation that will result in degradation of the antenna performance. This implies that the antenna performance may be degraded sometimes seriously when placed at a talk position. In the previous paper [2], a loop antenna system, which has the balance structure and is fed with the balanced line in order to reduce the effect of currents on the conducting box, has been introduced and it is shown that the reduction of the currents on the ground plane is remarkable by using balanced system. Since L-type loop antenna [3] produces both vertically and horizontally polarized components, it would be useful for handset operation in the multipath environment [4]. In the analysis, a simple model consisting of a small loop antenna mounted on a ground plane is used and antenna characteristics are analyzed both theoretically and experimentally. In this paper, in order to confirm the effectiveness of using the balanced antenna and L-typed structure, the performance of the balance-fed and L-typed loop antenna system for handset under the influence of a human head is analyzed numerically and experimentally. As a human head model, COST (European Cooperation in the field of Scientific and Technical Research) 244 model [4], which has a spherical or cubic form, is used. The electromagnetic IE3D simulator by Zeland Software is used to obtain the antenna characteristics such as current distribution and radiation pattern.
SLA-tree (2011)

As cloud computing becomes increasingly important in database systems, many new challenges and opportunities have arisen. One challenge is that in cloud computing, business profit plays a central role. Hence, it is very important for a cloud service provider to quickly make profit-oriented decisions. In this paper, we propose a novel data structure, called SLA-tree, to efficiently support profit-oriented decision making. SLA-tree is built on two pieces of information: (1) a set of buffered queries waiting to be executed, which represents the scheduled events that will happen in the near future, and (2) a service level agreement (SLA) for each query, which indicates the different profits for the query for varying query response times. By constructing the SLA-tree, we efficiently support the answering of certain profit-oriented "what if" questions. Answers to these questions in turn can be applied to different profit-oriented decisions in cloud computing such as profit-aware scheduling, dispatching, and capacity planning. Extensive experimental results based on both synthetic and real-world data demonstrate the effectiveness and efficiency of our SLA-tree framework.
Radiation-Conserving Incandescent Lamps (1980)

In this paper, the technology of an energy-conserving incandescent lamp is described. The lamp has a spherical envelope coated with a multilayer heat mirror of TiO2-Ag-TiO2. The coated envelope focuses the infrared radiation back to a centered compact filament of high emissivity while transmitting the visible wavelengths. The energy savings depend on the emissivity of the filament and the effective reflectance and visible transmittance of the coated envelope. Performance has been evaluated both in a model lamp system and in actual lamps.