gebhart/patrepeval huggingface dataset:
Teachware for Control (1988)

Personal computers and workstations are introduced into University education at an increasing rate. Classical and modern methods as well as sequencing control form the basis of control education where computers are used for classroom presentations, exercises, laboratory experiments and in projects. Commercially available simulation and computer aided control system design packages may be used in teaching together with real-time software and with special programs developed for specific purposes. This wide spread of possibilities is discussed and illustrated by many examples of leaning and teaching control systems with computers. Small sections are devoted to authoring systems and to the design of man-machine interfaces for teaching programs.
TWO DIMENSIONAL ELECTRON LOCALIZATION (1981)

This paper gives a short review of recent experimental work on weak localization in silicon inversion layers. It is shown that both this effect and effects arising from the electron-electron interaction are present. These mechanisms can be distinguished by their response to a magnetic field, which enables a confirmation of the principal theoretical predictions. The localization is cut off by a magnetic field which leads to the return of metallic conduction, and, it is suggested, a minimum metallic conductance.
A taxonomy and survey of grid resource management systems for distributed computing (2001)

Abstract The resource management system is the central component of distributed network computing systems. There have been many projects focused on network computing that have designed and implemented resource management systems with a variety of architectures and services. In this paper, an abstract model and a comprehensive taxonomy for describing resource management architectures is developed. The taxonomy is used to identify approaches followed in the implementation of existing resource management systems for very large‐scale network computing systems known as Grids. The taxonomy and the survey results are used to identify architectural approaches and issues that have not been fully explored in the research. Copyright © 2001 John Wiley &amp; Sons, Ltd.
Enhancing TCP fairness in ad hoc wireless networks using neighborhood RED (2003)

Significant TCP unfairness in ad hoc wireless networks has been reported during the past several years. This unfairness results from the nature of the shared wireless medium and location dependency. If we view a node and its interfering nodes to form a "neighborhood", the aggregate of local queues at these nodes represents the distributed queue for this neighborhood. However, this queue is not a FIFO queue. Flows sharing the queue have different, dynamically changing priorities determined by the topology and traffic patterns. Thus, they get different feedback in terms of packet loss rate and packet delay when congestion occurs. In wired networks, the Randomly Early Detection (RED) scheme was found to improve TCP fairness. In this paper, we show that the RED scheme does not work when running on individual queues in wireless nodes. We then propose a Neighborhood RED (NRED) scheme, which extends the RED concept to the distributed neighborhood queue. Simulation studies confirm that the NRED scheme can improve TCP unfairness substantially in ad hoc networks. Moreover, the NRED scheme acts at the network level, without MAC protocol modifications. This considerably simplifies its deployment.
Outage Performance of Multi-tier UAV Communication with Random Beam Misalignment (2023)

By exploiting the degree of freedom on the altitude, unmanned aerial vehicle (UAV) communication can provide ubiquitous communication for future wireless networks. In the case of concurrent transmission of multiple UAVs, the directional beamforming formed by multiple antennas is an effective way to reduce co-channel interference. However, factors such as airflow disturbance or estimation error for UAV communications can cause the occurrence of beam misalignment. In this paper, we investigate the system performance of a multi-tier UAV communication network with the consideration of unstable beam alignment. In particular, we propose a tractable random model to capture the impacts of beam misalignment in the 3D space. Based on this, by utilizing stochastic geometry, an analytical framework for obtaining the outage probability in the downlink of a multi-tier UAV communication network for the closest distance association scheme and the maximum average power association scheme is established. The accuracy of the analysis is verified by Monte-Carlo simulations. The results indicate that in the presence of random beam misalignment, the optimal number of UAV antennas needs to be adjusted to be relatively larger when the density of UAVs increases or the altitude of UAVs becomes higher.
Anisotropic Ion Diffusivity in Intervertebral Disc: An Electrical Conductivity Approach (2006)

Electrical conductivity and ion diffusivity of anulus fibrosus are anisotropic.
Asymmetric periflexural exanthema associated with HHV7 infection (2010)

Auteur(s) : Abdullah AL YOUSEF ALI1, David Farhi1,2, Sylvie De Maricourt2, Nicolas Dupin1 1Department of Dermatology, Pavillon Tarnier, Cochin University Hospital, 89, rue d’Assas, 75006 Paris, France 2Dermatology Clinic, 64 avenue des Gobelins, 75013 Paris, France In 1962, Brunner et al. described a maculopapular erythema of children which mostly begins unilaterally near the axillae, and spreads rapidly down on the side of the trunk and the medial surface of the arm [1]. This [...]
A frequency agile beam steerable tapered dielectric image-line antenna array with novel feeding structure (2009)

In this paper, a low-cost planar antenna array structure made of tapered dielectric image-line (DIL) radiators with a T-junction type feeding configuration is presented for Ka band frequency range. The radiation beam can be steered by changing the operation frequency. A beam deflection of 12° in horizontal plane is achieved by 2 GHz change in the operation frequency. A 22 dB directivity is estimated for a 3-element array structure. The measurement results are presented and are compared with the simulation results.
Study The Role of Serotonin 2B Receptor in Osteoclastogenesis (2015)

Osteoporosis is one of the most disease in menopausal women, middle‐aged and elderly people and it's second only to cardiovascular disease. Overexpression of osteoclastogenesis in the body resulting in outflow of sclerotic is one the main reason to cause osteoporosis. In recent years, clinical research has found persisting in taking anti‐depression drugs',Selective Serotonin Reuptake Inhibitor, SSRI, patients have higher ratio to suffer osteoporosis. It means serotonin, 5‐HT, should involve in the regulation of sclerotic metabolism. The researches demonstrated that there are many types of 5‐HT receptor, 5‐HTR, expressing in the human cell and regulate different physiological functions. In previous reports indicated both osteoblasts and osteoclasts expressing 5‐HT2BR. 5‐HT2BR can promote osteoblast proliferation and differentiation, but the effect on osteoclasts is unknown. In this study, we utilized receptor activator of nuclear factor kappa‐B ligand, RANKL to induce RAW264.7 cell differentiating to osteoclast as a model, and investigated how does the concentration of 5‐HT and 5‐HT2BR antagonist affect osteoclast differentiation. The result suggested that the degree of osteoclast differentiation was positive correlation with concentration of 5‐HT, and 5‐HT2BR antagonist treatment could reduce osteoclasts formation. In short, this investigation confirmed 5‐HT2BR involved in regulating osteoporosis. In the future, the further exploration will aim to intracellular signaling pathways. This research might provide another direction of prophylaxis and therapy for osteoporosis.
An Efficient and General Procedure for the Cross-Coupling of Trimethylsilylacetylene and Vinylic, Aromatic or Heteroaromatic Bromides (1990)

Abstract Coupling reactions of trimethylsilylacetylene and vinylic, aromatic or heteroaromatic bromides can be carried out in very short time and with excellent yield using piperidine as a solvent and very small amounts of tetrakis(triphenylphosphine)palladium and copper(I)iodide (0.1 to 0.3 g on 100 mmol scale) as catalysts.
Is adjunctive balloon postdilatation necessary after coronary stent deployment? Final results from the POSTIT trial (2003)

Early-generation balloon-expandable stents required postdilatation with noncompliant balloons at high pressure to optimize stent deployment. The need for adjunctive balloon postdilatation with modern stent delivery systems is unknown. Patients undergoing elective stenting were randomized to Boston Scientific NIR, Guidant Tri-Star/Tetra, and Medtronic AVE S670 stents. The primary endpoint was optimum stent deployment defined as a minimal stent diameter (MSD) >/= 90% of the average reference lumen diameter assessed by intravascular ultrasound (IVUS) performed immediately following stent deployment. If, by operator assessment, the primary endpoint was not achieved with the stent delivery system, adjunctive postdilatation with noncompliant balloons was performed. Of 256 patients with IVUS studies adequate for core laboratory analysis, only 29% achieved optimum stent deployment with the stent delivery system. None of the baseline clinical or angiographic variables predicted optimum stent deployment. Of the procedural variables, the type of stent and nominal stent size were not predictors, but higher deployment pressures were associated with a higher frequency of optimum stent deployment (< 12 atm 14% vs. >/= 12 atm 36%; P = 0.007). The inability to achieve optimum stent deployment was not due to undersizing the stent delivery balloon, but rather to an inability of the stent delivery balloon to expand fully the stent to nominal size. In patients who underwent postdilatation, the frequency of achieving optimum stent deployment increased from 21% to 42%, minimal stent area increased from 6.6 +/- 2.2 to 7.8 +/- 2.3 mm(2), and MSD increased from 2.6 +/- 0.5 to 2.8 +/- 0.4 mm. These data stress the continued need for adjunctive balloon postdilatation with modern stent delivery systems. Cathet Cardiovasc Intervent 2003;59:184-192.
Economic deviance (Respond to this article at http://www.therai.org.uk/at/debate) (2014)

Making sense of what went wrong during the recent financial crises requires us to go beyond the conventional view of deviance. We need a more systematic and social view of financial deviance, and have long had the intellectual tools to do so. They include Durkheim and Merton's work, invoked here to pose pertinent questions about the deviant behaviour of corporations and institutions.
The Fock space method of vibrational analysis (2010)

A reformulation of a semiclassical theory that presently seems uniquely capable of interpreting generic complex multiresonant vibrational spectra is presented. Once given the spectroscopic Hamiltonian which reveals the set of possible resonant couplings and its eigenstates, the new and old formulations both yield without any further computation level by level dynamical assignments for the spectra. Computing a simple trajectory in phase space reveals the motions that when quantized yield the assigned levels. The reformulation introduces two new projected representations of the wave functions. The first is in action space and the second in angle space. The projected representations often allow the reduced angle space, where nodal searches are made, to be of lower dimension than formally occurred. In addition the action representation is a similarly lower dimension lattice representation whose discreteness and regularity allow higher reduced dimensions to be studied. The lattice representation is used to produce a significantly more complete and detailed assignment of the thiophosgene spectrum than previously published.
Nanocrystalline mesoporous LiFePO4 thin-films as cathodes for Li-ion microbatteries (2013)

Mesoporous LiFePO4 thin films prepared using a facile and low-cost synthesis approach have been studied as electrodes for Li-ion batteries. LiFePO4 mesoporous films (∼300 nm) were synthesized by a template-directed sol–gel chemistry coupled with the dip-coating approach, followed by heat-treatment under a reducing atmosphere (10% H2/N2) at temperatures ranging from 400 to 760 °C. These mesostructured LiFePO4 films are constituted of a connected network of mesopores (∼60 nm) and an assembly of crystalline nanoparticles (∼50 nm) in the pore wall. In addition, the presence of carbon, evidenced by Raman spectroscopy, provides efficient electron pathways along the 3-D nanoarchitectures. Cycling performance was evaluated for optimal nanocrystalline LiFePO4 thin films showing an excellent high rate performance after 1000 cycles (158 mA h g−1). These data provide important information on new types of porous architectures for the design of efficient electrodes for micro-batteries.
A reliable measurement for identifying a lumbosacral transitional vertebra with a solid bony bridge on a single-slice midsagittal MRI or plain lateral radiograph (2013)

The purpose of this study was to devise a simple but reliable radiological method of identifying a lumbosacral transitional vertebra (LSTV) with a solid bony bridge on sagittal MRI, which could then be applied to a lateral radiograph. The vertical mid-vertebral angle (VMVA) and the vertical anterior vertebral angle (VAVA) of the three most caudal segments of the lumbar spine were measured on MRI and/or on a lateral radiograph in 92 patients with a LSTV and 94 controls, and the differences per segment (Diff-VMVA and Diff-VAVA) were calculated. The Diff-VMVA of the two most caudal vertebrae was significantly higher in the control group (25° (sd 8) than in patients with a LSTV (type 2a+b: 16° (SD 9), type 3a+b: -9° (SD 10), type 4: -5° (SD 7); p < 0.001). A Diff-VMVA of ≤ +10° identified a LSTV with a solid bony bridge (type 3+4) with a sensitivity of 100% and a specificity of 89% on MRI and a sensitivity of 94% and a specificity of 74% on a lateral radiograph. A sensitivity of 100% could be achieved with a cut-off value of 28° for the Diff-VAVA, but with a lower specificity (76%) on MRI than with Diff-VMVA. Using this simple method (Diff-VMVA ≤ +10°), solid bony bridging of the posterior elements of a LSTV, and therefore the first adjacent mobile segment, can be easily identified without the need for additional imaging.
Coherent control of femtosecond spin current investigated by polarization dependent terahertz emission spectroscopy in ferromagnetic heterostructures (2018)

Approaches towards highly-efficient generation of controllable elliptical terahertz pulses in ferromagnetic nano-heterostructures are demonstrated. The mechanism for the coherent control of femtosecond spin current in ferromagnetic heterostructures are discussed.
Coalescence of Single-Walled Carbon Nanotubes (2000)

The coalescence of single-walled nanotubes is studied in situ under electron irradiation at high temperature in a transmission electron microscope. The merging process is investigated at the atomic level, using tight-binding molecular dynamics and Monte Carlo simulations. Vacancies induce coalescence via a zipper-like mechanism, imposing a continuous reorganization of atoms on individual tube lattices along adjacent tubes. Other topological defects induce the polymerization of tubes. Coalescence seems to be restricted to tubes with the same chirality, explaining the low frequency of occurrence of this event.
Enhancement and bandwidth compression of noisy speech by estimation of speech and its model parameters. (1978)

Thesis. 1978. Sc.D.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Texting & Walking: A Dual-Task Study on Gait Patterns in a College-Aged Sample (2016)

Please refer to the pdf version of the abstract located adjacent to the title.
Model for quantifying photoelastic fringe degradation by imperfect retroreflective backings (2000)

In any automated algorithm for interpreting photoelastic fringe patterns it is necessary to understand and quantify sources of error in the measurement system. We have been considering how the various components of the coating affect the photoelastic measurement, because this source of error has received fairly little attention in the literature. Because the reflective backing is not a perfect retroreflector, it does not preserve the polarization of light and thereby introduces noise into the measurement that depends on the angle of obliqueness and roughness of the reflective surface. This is of particular concern in resolving the stress tensor through the combination of thermoelasticity and photoelasticity where the components are sensitive to errors in the principal angle and difference of the principal stresses. We have developed a physical model that accounts for this and other sources of measurement error to be introduced in a systematic way so that the individual effects on the fringe patterns can be quantified. Simulations show altered photoelastic fringes when backing roughness and oblique incident angles are incorporated into the model.
A SHAPE INDUCED ANISOTROPIC FLOWFOR VOLUMETRIC VASCULAR SEGMENTATION IN MRA (2007)

Evolutionary schemes based on the level set theory are effective tools for medical image segmentation. In this paper, a shape prior is introduced which can be useful for vessel segmentation and can produce elongated structures. For a hypothetical evolving implicit surface, using the gradient vectors of its signed distance transform (SDT) a shape measure is introduced that is maximized whenever the local surface resembles a cylinder. Using this shape prior, a new functional is defined and the optimization is obtained by applying Frechet derivative. We show that this yields an anisotropic expansion term that propagates the surface in the tangential direction of vessel. This prior is then combined with edge information to produce a complete level set scheme for vessel segmentation. We have applied our method to five real MRA data sets and comparison has been made with a state-of-the-art vessel segmentation method. Presented results indicate that using this method a significant improvement is achievable and the method can be an effective tool to extract vessels in MRA intracranial images
Phospholipase C gene expression, protein content, and activities in cardiac hypertrophy and heart failure due to volume overload (2004)

Volume overload due to arteriovenous (AV) shunt results in cardiac hypertrophy followed by the progression to heart failure. The phosphoinositide phospholipase C (PLC) converts phosphatidylinositol 4,5-bisphosphate (PIP(2)) to 1,2-diacylglycerol (DAG) and inositol (1,4,5)-trisphosphate (IP(3)), which are known to influence cardiac function. Therefore, we examined the time course of changes in DAG and IP(3) as well as PLC isozyme gene expression, protein content, and activities in cardiac hypertrophy and heart failure induced by AV shunt in Sprague-Dawley rats by the needle technique. An increase in the left ventricle (LV)-to-body weight ratio demonstrated that LV hypertrophy was established at 4 wk after the induction of the shunt. PLC-beta(1) activity was increased two- and sevenfold at 3 days and 1 and 2 wk after the induction of volume overload, respectively. These changes were associated with increases in the mRNA and sarcolemmal (SL) protein content; however, no changes in PLC-beta(1) were detected at 4 wk. On the other hand, a significant increase in PLC-gamma(1) activity as well as mRNA and SL protein was seen at 3 days and 4 wk. A progressive decrease in PLC-delta(1) activity with concomitant reductions in the gene expression and SL protein abundance was detected during 1 to 4 wk. Activity of gamma(1)- and delta(1)-isozymes was significantly depressed during the 8- and 16-wk time points, whereas beta(1)-isozyme was increased significantly during these time points. A progressive decrease in the SL PIP(2) content was observed during cardiac hypertrophy and heart failure. Our findings indicate that PLC isozyme signaling processes are increased in hypertrophy and decreased in heart failure due to volume overload.
Control architecture in optical burst-switched WDM networks (2000)

Optical burst switching (OBS) is a promising solution for building terabit optical routers and realizing IP over WDM. In this paper, we describe the basic concept of OBS and present a general architecture of optical core routers and electronic edge routers in the OBS network. The key design issues related to the OBS are also discussed, namely, burst assembly (burstification), channel scheduling, burst offset-time management, and some dimensioning rules. A nonperiodic time-interval burst assembly mechanism is described. A class of data channel scheduling algorithms with void filling is proposed for optical routers using a fiber delay line buffer. The LAUC-VF (latest available unused channel with void filling) channel scheduling algorithm is studied in detail. Initial results on the burst traffic characteristics and on the performance of optical routers in the OBS network with self-similar traffic as inputs are reported in the paper.
Zbrowse: an interactive GWAS results browser (2015)

The growing number of genotyped populations, the advent of high-throughput phenotyping techniques and the development of GWAS analysis software has rapidly accelerated the number of GWAS experimental results. Candidate gene discovery from these results files is often tedious, involving many manual steps searching for genes in windows around a significant SNP. This problem rapidly becomes more complex when an analyst wishes to compare multiple GWAS studies for pleiotropic or environment specific effects. To this end, we have developed a fast and intuitive interactive browser for the viewing of GWAS results with a focus on an ability to compare results across multiple traits or experiments. The software can easily be run on a desktop computer with software that bioinformaticians are likely already familiar with. Additionally, the software can be hosted or embedded on a server for easy access by anyone with a modern web browser.
A Study of Evaluation Model Relating to Building Seismic Damage-Case Study at the Taiwan 921 Earthquake Areas (2012)

The purpose of this study is to use binary regression to construct the forecast model about the damage of the buildings in the earthquake disaster, and differentiate the relationship between the breakage and the collapse of the building and the character of the building by coefficients of the model. The Urban Planning Region of Chung-Hsing New Village is 7.0 magnitude earthquake area and the researched subject of this study. The reasons of the building collapses in the earthquake disaster can be induced by relative bibliographies and investigation data of collapses of the buildings in fields in reference units at 921 earthquake time. The model variables are chosen by considering the feasibility of the data which are obtained and investigated in fields. A forecast model about the damage of the middle and lower floor buildings in earthquake disaster is established by logistic regression of binary regression method. The model is through the coefficient test, the expected sign, the test of significance and the precise rate of the model, to understand the significance of the model coefficient and the application to the strategy.