gebhart/patrepeval huggingface dataset:
Analysis and Modeling of Inertial Sensors Using Allan Variance (2007)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> It is well known that inertial navigation systems can provide high-accuracy position, velocity, and attitude information over short time periods. However, their accuracy rapidly degrades with time. The requirements for an accurate estimation of navigation information necessitate the modeling of the sensors' error components. Several variance techniques have been devised for stochastic modeling of the error of inertial sensors. They are basically very similar and primarily differ in that various signal processings, by way of weighting functions, window functions, etc., are incorporated into the analysis algorithms in order to achieve a particular desired result for improving the model characterizations. The simplest is the Allan variance. The Allan variance is a method of representing the root means square (RMS) random-drift error as a function of averaging time. It is simple to compute and relatively simple to interpret and understand. The Allan variance method can be used to determine the characteristics of the underlying random processes that give rise to the data noise. This technique can be used to characterize various types of error terms in the inertial-sensor data by performing certain operations on the entire length of data. In this paper, the Allan variance technique will be used in analyzing and modeling the error of the inertial sensors used in different grades of the inertial measurement units. By performing a simple operation on the entire length of data, a characteristic curve is obtained whose inspection provides a systematic characterization of various random errors contained in the inertial-sensor output data. Being a directly measurable quantity, the Allan variance can provide information on the types and magnitude of the various error terms. This paper covers both the theoretical basis for the Allan variance for modeling the inertial sensors' error terms and its implementation in modeling different grades of inertial sensors. </para>
The circumplex model of affect: An integrative approach to affective neuroscience, cognitive development, and psychopathology (2005)

The circumplex model of affect proposes that all affective states arise from cognitive interpretations of core neural sensations that are the product of two independent neurophysiological systems. This model stands in contrast to theories of basic emotions, which posit that a discrete and independent neural system subserves every emotion. We propose that basic emotion theories no longer explain adequately the vast number of empirical observations from studies in affective neuroscience, and we suggest that a conceptual shift is needed in the empirical approaches taken to the study of emotion and affective psychopathologies. The circumplex model of affect is more consistent with many recent findings from behavioral, cognitive neuroscience, neuroimaging, and developmental studies of affect. Moreover, the model offers new theoretical and empirical approaches to studying the development of affective disorders as well as the genetic and cognitive underpinnings of affective processing within the central nervous system.
FPGA hardware devices with single-instruction driving for an embedded mobile computing platform (2002)

In this paper, high performance devices based on FPGA (Field Programmable Gate Arrays) for an embedded mobile computing platform are described. The devices as custom configurable devices are designed for three hardware components, keypad, external RAM and LCD. The core of the platform is the FLIX processor which is a reconfigurable processor developed with ALTERA FPGA and VHDL. The new devices are considered as functional units of FLIX. This paper focuses on the device design with single instruction driving. The FLIX processor driving a peripheral device, keypad, external RAM or LCD, only needs one single instruction. Hence, the management and operation of the microprocessor system are simplified and accelerated. The conception, organization and simulation for the FPGA functional units are discussed in this paper. The FPGA functional units are developed by VHDL language in Max-plus II. The new devices are helpful and useful to simplify control and modify the operating speed for a microprocessor managing its peripheral devices.
A Novel Current-Mode Sensing Scheme for Magnetic Tunnel Junction MRAM (2004)

In this paper, we present two integrated circuits for sensing data nondestructively from one-transistor one-magnetic tunnel junction (1T-1MTJ) magnetoresistive random access memory (MRAM). The first one is a low-power sensing circuit for MTJs with a magnetoresistance (MR) ratio larger than 10%, and the second one is a high-sensitivity switched-current sensing circuit for MTJs with an MR ratio as low as 5%. The circuits are designed using 0.60- and 0.18-/spl mu/m CMOS processes, and their performance is verified using HSPICE. Compared with existing sensing circuits at a power supply of 3.0 V, their read access time is 1.46-3.33 times faster and power consumption is 2.67-3.85 times smaller.
Intrathecal administration of 4-hydroperoxycyclophosphamide in rhesus monkeys. (1987)

The preactivated cyclophosphamide analogue, 4-HC, does not require activation by hepatic microsomal enzymes to express its cytotoxic activity and therefore, unlike cyclophosphamide, may be useful for the regional therapy of cancer. In the present study, the pharmacokinetics and toxicology of 4-HC were studied following intraventricular administration of 0.4 mg to rhesus monkeys with chronic indwelling Ommaya reservoirs. 4-HC was measured in cerebrospinal fluid (CSF) and plasma with a high-performance liquid chromatography assay utilizing a fluorometric detector following derivatization with m-aminophenol. The mean peak level of 4-HC in ventricular CSF was 100 microM 5 min after administration. The drug was cleared rapidly and the elimination was monoexponential with a mean half-life of 22 min. The mean clearance from CSF (0.33 ml/min) was 10-fold higher than CSF bulk flow. The drug was distributed throughout the subarachnoid space with lumbar levels approaching ventricular levels by 60 min. Neither acute nor chronic neurotoxicity or systemic toxicity was observed during the 6-wk observation period. Concentrations of 4-HC demonstrated to be cytocidal in vitro against human breast cancer, lymphoid leukemia, and rhabdomyosarcoma were readily achieved in CSF following intraventricular administration. This study demonstrates that intraventricular therapy with 4-HC is feasible and suggests that further study of this approach in the clinical setting should be considered.
Longterm ultraviolet-A1 irradiation therapy in systemic lupus erythematosus. (1997)

UV-A1 radiation induced remissions in SLE persist with longterm therapy; 1 or 2 weekly exposures suffice; there appears to be no significant toxicity.
Effect Of Tube Materials And Special Coating On Coke Deposition In The Steam Cracking Of Hydrocarbons (2007)

The steam cracking reactions are always accompanied with the formation of coke which deposits on the walls of the tubular reactors. The investigation has attempted to control catalytic coking by the applying aluminum, zinc and ceramic coating like aluminum-magnesium by thermal spray and pack cementation method. Rate of coke formation during steam cracking of naphtha has been investigated both for uncoated stainless steel (with different alloys) and metal coating constructed with thermal Spray and pack cementation method with metal powders of Aluminum, Aluminum-Magnesium, zinc, silicon, nickel and chromium. The results of the study show that passivating the surface of SS321 with a coating of Aluminum and Aluminum-Magnesium can significantly reduce the rate of coke deposition during naphtha pyrolysis. SEM and EDAX techniques (Philips XL Series) were used to examine the coke deposits formed by the metal-hydrocarbon reactions. Our objective was to separate the different stages by identifying the characteristic morphologies.
Interactions Among Friction, Wear, and System Stiffness—Part 3: Wear Model (1984)

It is shown that wear is an increasing function of system stiffness. The increase in the frequency of the applied load oscillations in normal direction causes increase of number of loading cycles per unit time that, in turn, causes increased rate of wear particles formation due to fatigue. A wear model has been developed which accounts for slider oscillation in the normal direction. Experimental data correlate very well with the theoretical analysis.
Calculated Solubilities of Oxygen in Liquid and Solid Silicon (1986)

By a thermodynamic approach, several equilibria for the silicon‐oxygen system, important for silicon crystal growth, were derived. The solid solubility of oxygen in silicon in equilibrium with was calculated with good agreement with experimental literature data. Equilibrium data for liquid silicon, which has never been measured although of great importance for the control of oxygen in Czochralski crystal growth, were also obtained.
Solid Phase Microextraction for Quantitative Analysis in Nonequilibrium Situations (1997)

Solid phase microextraction (SPME) is a convenient and efficient extraction method that involves using a thin polymer film coating on a fine silica fiber to adsorb analytes of interests from a sample matrix. A theoretical model is proposed to deal with the dynamic adsorption process of SPME. In this model, mass diffusion from the matrix to the SPME polymer film is considered as the rate-determining step in reaching an adsorption equilibrium, and a steady-state diffusion is assumed for SPME in an effectively agitated sampling medium. Mathematical treatment of the adsorption process generates an expression that can describe experimental adsorption time profiles of the SPME process. The expression also provides a directly proportional relationship between the amount of analyte adsorbed by the SPME fiber and its initial concentration in the sample matrix. This relationship indicates that SPME quantification is feasible before an adsorption equilibrium is reached, once the agitation condition and the sampling time are held constant. The theoretical model is fitted with experimental data, and there is a very good agreement between them. Data plots of the adsorbed amount vs the initial concentration showed excellent linearity, with a sampling time much shorter than that required for reaching an adsorption equilibrium.
A theoretical model for single-molecule incoherent scanning tunneling spectroscopy (2008)

Single molecule scanning tunneling spectroscopy (STS), with dephasing due to elastic and inelastic scattering, is of some current interest. Motivated by this, we report an extended Huckel theory (EHT) based mean-field Non-equilibrium Green's function (NEGF) transport model with electron-phonon scattering treated within the self-consistent Born approximation (SCBA). Furthermore, a procedure based on EHT basis set modification is described. We use this model to study the effect of the temperature dependent dephasing, due to low lying modes in far-infrared range for which hw<<kT, on the resonant conduction through highest occupied molecular orbital (HOMO) level of a phenyl dithiol molecule sandwiched between two fcc-Au(111) contacts. Furthermore, we propose to include dephasing in room temperature molecular resonant conduction calculations.
A Study on the Performance of Exotic and Indigenous Chicken under Scavenging Method (2013)

A study was conducted on the performance of exotic laying birds under scavenging systems at Sharishabari, Jamalpur during July, 2005 to June, 2006. For this purpose four exotic (three female and one male) and three local birds were provided to the six landless and six marginal cooperator farmers whereas six landless and six marginal non-cooperator farmers were considered as control. The average mortality in exotic chicken was 55% in case of local breed. The body and egg weight of exotic birds (1.65 kg and 56 gm respectively) were higher than the local breed (1.00 kg and 54 gm respectively). The average egg production per year was found to higher in exotic (84) than the local breed (62). But the benefit cost ration of exotic was found to be lower (1.36) than the local breed (1.46). DOI: http://dx.doi.org/10.3329/jsf.v8i1-2.14617 J. Sci. Foundation, 8(1&2): 31-34, June-December 2010
Elucidating Ablation Mechanisms through SIMS Studies of Cross-Linked Polymer Surfaces (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElucidating Ablation Mechanisms through SIMS Studies of Cross-Linked Polymer SurfacesGerard R. Pinto, Katherine M. Stika, and Kathryn G. LloydCite this: J. Phys. Chem. 1995, 99, 5, 1543–1547Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February 1995https://pubs.acs.org/doi/10.1021/j100005a027https://doi.org/10.1021/j100005a027research-articleACS PublicationsRequest reuse permissionsArticle Views45Altmetric-Citations3LEARN 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
On covert collaboration (2007)

In the conventional steganographic framework, a covert message is hidden within a larger, seemingly innocent message. We argue that this framework must be extended in order to adequately model the means and goals of modern collaborative systems. Whereas messages are static objects with a single creator, collaborative systems are dynamically changed by multiple entities according to rules and patterns specific to the given system.
Ischemia-induced calpain activation causes eukaryotic (translation) initiation factor 4G1 (eIF4GI) degradation, protein synthesis inhibition, and neuronal death (2011)

Persistent protein synthesis inhibition (PSI) is a robust predictor of eventual neuronal death following cerebral ischemia. We thus tested the hypothesis that persistent PSI inhibition and neuronal death are causally linked. Neuronal viability strongly correlated with both protein synthesis and levels of eukaryotic (translation) initiation factor 4G1 (eIF4G1). We determined that in vitro ischemia activated calpain, which degraded eIF4G1. Overexpression of the calpain inhibitor calpastatin or eIF4G1 resulted in increased protein synthesis and increased neuronal viability compared with controls. The neuroprotective effect of eIF4G1 overexpression was due to restoration of cap-dependent protein synthesis, as well as protein synthesis-independent mechanisms, as inhibition of protein synthesis with cycloheximide did not completely prevent the protective effect of eIF4G1 overexpression. In contrast, shRNA-mediated silencing of eIF4G1 exacerbated ischemia-induced neuronal injury, suggesting eIF4G1 is necessary for maintenance of neuronal viability. Finally, calpain inhibition following global ischemia in vivo blocked decreases in eIF4G1, facilitated protein synthesis, and increased neuronal viability in ischemia-vulnerable hippocampal CA1 neurons. Collectively, these data demonstrate that calpain-mediated degradation of a translation initiation factor, eIF4G1, is a cause of both persistent PSI and neuronal death.
Factors Influencing the Tolerance of Peas to MCPA (1963)

2-Methyl-4-chlorophenoxyacetic acid (MCPA) is widely used to control broad-leaved weeds in pea fields. Occasionally, peas are severely injured by MCPA. This study was conducted in 1959 and 1960 to determine the relationships, if any, of environmental factors and of chemical constituents of plants at the time of spraying to the tolerance of peas to MCPA. Plants were equally susceptible to MCPA at either the 5- or 10-node stages. The time of day at which plants were sprayed appeared to be the most important factor associated with the tolerance of pea to MCPA. Fresh weights of vines and yields of shelled peas from plants sprayed at noon and 4:00 pm were significantly lower than those from unsprayed plants or plants sprayed at other times of the day. The carbohydrate content of pea plants varied with the time of day (exposure to light). The carbohydrate content was associated with susceptibility to injury by MCPA. A high carbohydrate content at the time of spraying was associated with a high degree of susceptibility to MCPA. High temperature at the time of spraying tended to increase the rate of translocation of MCPA. However, in the absence of prolonged exposure to light prior to treatment, high temperature alone did not predispose peas to injury by MCPA.
Credit Risk Modeling and Valuation (2002)

Credit risk refers to the risk of incurring losses due to unexpected changes in the credit quality of a counterparty or issuer. In this paper we give an introduction to the modeling of credit risks and the valuation of credit-risky securities. We consider individual as well as correlated credit risks.
On Quality Functions for Grasp Synthesis, Fixture Planning, and Coordinated Manipulation (2004)

Planning a proper set of contact points on a given object/workpiece so as to satisfy a certain optimality criterion is a common problem in grasp synthesis for multifingered robotic hands and in fixture planning for manufacturing automation. In this paper, we formulate the grasp planning problem as optimization problems with respect to three grasp quality functions. The physical significance and properties of each quality function are explained, and computation of the corresponding gradient flows is provided. One noticeable property of some of these quality functions is that the optimal solutions are also force-closure grasps if they do exist for the given object. Furthermore, when specialized to two-fingered or three-fingered grasps on a spherical object, the optimal solutions become the familiar antipodal grasp, or the symmetric grasp, respectively. Thus, by following the gradient flows with arbitrary initial conditions, the optimal grasp synthesis problem is solved for objects with smooth geometries manipulated by hands with any number of fingers. Also, note that our solutions do not involve linearization of the friction cones. We discuss two simplified versions of these problems when real-time solutions are needed, e.g. coordinated manipulation of a robotic hand with contact points servoing. We give simulation and experimental results illustrating validity of the proposed approach for optimal grasp planning. Note to Practitioners: This paper presents three new quality functions for comparing and planning grasps and fixtures. These measures improve on the traditional measure of force closure. We propose a method for computing the optimal solutions of these functions, and a method for reducing their computation time through reasonable simplification/approximation. Preliminary experiments with a three-fingered robotic hand demonstrate that the proposed functions can be used to optimize the grasp quality during manipulation/manufacturing, and keep the optimal grasp configuration once it is reached. However, we only obtain the local optimal solutions for the functions without simplification except for some special cases. We also assume that the object/workpiece is ideally rigid in all three functions. In future research, we will improve these limitations through a compliance model.
Co-Treatment With Copper Compounds Dramatically Decreases Toxicities Observed With Cisplatin Cancer Therapy And The Anticancer Efficacy Of Some Copper Chelates Supports The Conclusion That Copper Chelate Therapy May Be Markedly More Effective And Less Toxic Than Cisplatin Therapy (2007)

Co-Administration of Cu(II) chelates are reported to decrease life threatening Cisplatin [Pt(II) (NH3)2(CL)2]-induced acute degenerative renal, gastrointestinal, thymic, and bone marrow states consistent with serious necrotizing and immune-mediated inflammatory disease. Initially it was found that copper sulfate treatment completely prevented lethality as well as gastric and nephrotoxicity without compromising Pt(II) (NH3)2(CL) 2 antineoplastic activity, which led to suggestions that prior Cu(II)-treatment be used clinically to prevent serious side effects of Pt(II) (NH3)2(CL)2-treatment. In the course of these studies it was discovered that Cu(II)-treatments alone inhibited neoplastic growth and increased survival of rat and mouse models of cancer. Subsequently it was discovered that a stable non-toxic and non-polar lipophilic chelate, Copper(II)2(3,5-diisopropylsalicylate)4, caused redifferentiation of cultured neuroblastoma and mouse muscle-implanted mammary adenocarcinoma without neoplastic cell killing. Another stable non-toxic and non-polar lipophilic chelate, Copper(II)2(3,5-ditertiarybutylsalicylate)4, was found to prevent Bax-initiated and caspases-3-activation mediated apoptosis. These remarkable observations are concluded to be due to enzyme-mimetic or modulating reactivities of Cu(II) chelates and/or facilitation of Cu(II or I)-dependent enzyme syntheses required to overcome inflammatory-neoplastic disease states. Further, approaches to treating neoplastic diseases by removal of Cu from tissues with ammonium tetrathiomolybdate in an anticopper approach to therapy are not well founded based upon existing scientific literature.
Total Syntheses of Naturally Occurring Bis(methylthio)silvatin and Its Three Stereoisomers (1997)

Total syntheses of naturally occuning bis(methy1thio)silvatin and its three stereoisomers were achieved from 1,4-dimethyl-3-@-hydroxy)benzyl-2,5piperazinedione.The configurational structures of the four stereoisoniers, thus obtained, were definitely determined by the comparisons of their mps, specific rotations and NMR spectra.Bis(methy1thio)silvatin (la)',2 and similar ~o D ~~~x ~ 5 , AJh$+o Me two nameless products,'~2 produced by SMe 0 Me O "M, Gliocladium virens, have a main cyclic Bis(methylthio)silvatin (la) Dithiosilvatin (2)
Blind Source Separation Combining SIMO-Model-Based ICA and Adaptive Beamforming (2006)

A new two-stage blind source separation (BSS) for convolutive mixtures of speech is proposed, in which a single-input multiple-output-model-based ICA (SIMO-ICA) and an adaptive beamforming (ABF) are combined. SIMO-ICA can separate the mixed signals, not into monaural source signals but into SIMO model-based signals from independent sources as they are at the microphones. Thus, the separated signals of SIMO-ICA can maintain the spatial qualities of each sound source, and the directions-of-arrival (DOAs) of the sources can be estimated after the separation by SIMO-ICA. Owing to the attractive property, the supervised ABF can be applied to removing the residual interference components efficiently after the SIMO-ICA and DOA estimation procedures. Experimental results reveal that separation performance can be considerably improved by using the proposed method. In addition, the proposed method outperforms the combination of the conventional SIMO-output-type ICA and ABF, as well as both the simple ICA and the simple ABF.