gebhart/patrepeval huggingface dataset:
Detection and Imaging of Underground Structures by Exploiting ELF/VLF Radiowaves (2000)

Clandestine tunnels and underground complexes have been developed in recent years to conceal border crossing passageways and military assets. Ground or airborne attack requires overt and covert imaging to determine the orientation of the underground facility, classification of the overlying rock/soil, burial depth, location of adits, and power and communication lines. Standard worldwide mining practice causes electrical conductors to be installed in the adit and passageways of the underground complex. These electrical conductors form low attenuation rate networks for distribution of EM waves throughout the complex. The electric field component of the primary (illuminating) EM wave induces current flow in these conductors. The current flow causes cylindrically spreading secondary waves to propagate in the surrounding rock mass and become observable on the surface. Mapping the observable provides the information needed for detection. Both analytical codes to determine the underground complex response and highly effective instrumentation for measuring secondary waves have been developed. The High Frequency Active Auroral Research Project transmitter produces and EM wave magnetic field component that is measurable on the earth's surface, making it an effective standoff transmitter for evaluating detection technologies.
Adequateness of the French plastic engineering curricula with the industrial need (2002)

International audience
Oxidation of acetate in rabbit skeletal muscle: Detection by 13C NMR spectroscopy in vivo (1996)

The results of a proton-decoupled and Overhauser-enhanced 13C NMR study of acetate metabolism in skeletal muscle are reported. [2-13C]Acetate was infused intravenously over 2 h into anesthetized rabbits, and skeletal muscle in the lateral thigh was monitored by 13C NMR spectroscopy at 4.7 T. Stable 13C enrichment in carbons 2, 3, and 4 of glutamate was observed at the end of the infusion, and the half-time for enrichment was 17 min for glutamate C4 and 50 min for glutamate C2 and C3. The contribution of exogenous acetate to acetylcoenzyme A was nearly equal in skeletal muscle and heart in vivo (83-87%, measured in tissue extracts), comparable with earlier perfused heart studies in which acetate was the sole available substrate. Although relative flux through the combined anaplerotic pathways (relative to citric acid cycle flux) was higher in quiescent skeletal muscle (28%) compared with hearts (3%) from the same animals, actual anaplerotic flux was estimated to be substantially higher in heart than in skeletal muscle after correcting for differences in citric acid cycle flux in the two tissues.
Do You Smile with Your Nose? Stylistic Variation in Twitter Emoticons (2012)

On the surface, emoticons seem to convey emotional stances, so we expect smiles and frowns to be used differently from one another. But there are other systematic patterns of variation in emoticons that are not easily described by terms like “friendly” or “sad”. This paper analyzes the 28 most frequent emoticons in use in American English tweets. People vary in their use of eyes, mouth shape, face direction, and whether or not they represent a nose in the face. And we see these in groups other than smiles—in variants of frowns and winks, for example. This paper focuses on nose and non-nose users, demonstrating that the variants correspond to different types of users, tweeting with different vocabularies. Emoticons are not simply representations of internal emotional states. They are more interactive in nature, positioning authors and audiences around propositions. The meaning of a given emoticon goes beyond its affective stance. For example, emoticons have variants that have greater or lesser affinities to standard language. Researchers who are interested in style, stance, affect, computer mediated communication, variation, context, and sentiment analysis will find ample grist for their mills.
Comparison of serum cardiac specific biomarker release after non-cardiac thoracic surgery. (2011)

Despite the excellent sensitivity of troponin I for detection of acute myocardial infarction the fact remains that troponin I elevations were common after intrapericardial procedures and pneumonectomies. Thus, to differentiate between cardiac ischemia provoked chest pain and wound pain related to thoracotomy remains most difficult. Patients with only marginally elevated cTnI concentrations after intrapericardial resections or pneumonectomy should remain in the intensive care unit and should be followed-up carefully by cardiologists.
Rotorcraft Flight Dynamics and Control in Wind for Autonomous Sampling of Spatiotemporal Processes (2015)

In recent years, there has been significant effort put into the design and use small, autonomous, multi-agent, aerial teams for a variety of military and commercial applications. In particular, small multi-rotor systems have been shown to be especially useful for carrying sensors as they have the ability to rapidly transit between locations as well as hover in place. This dissertation seeks to use multi-agent teams of autonomous rotorcraft to sample spatiotemporal fields in windy conditions. For many sampling objectives, there is the problem of how to accomplish the sampling objective in the presence of strong wind fields caused by external means or by other rotorcraft flying in close proximity. This dissertation develops several flight control strategies for both wind compensation, using nonlinear control techniques, and wind avoidance, using artificial potential-based control. To showcase the utility of teams of unmanned rotorcraft for spatiotemporal sampling, optimal algorithms are developed for two sampling objectives: (1) sampling continuous spatiotemporal fields modeled as Gaussian processes, and (2) optimal motion planning for coordinated target detection, which is an example of a discrete spatiotemporal field. All algorithms are tested in simulation and several are tested in a motion capture based experimental testbed.
The Effect of Mental Stress on the Non-Dipolar Components of the T Wave: Modulation by Hypnosis (2005)

a) Mental stress in the absence of ischemia altered repolarization inhomogeneity via change in the autonomic balance. b) Mental relaxation induced by hypnosis greatly reduced the effect of mental stress on repolarization. c) These findings may have implications for arrhythmogenesis.
Reconstruction of effective potential from statistical analysis of dynamic trajectories (2020)

The broad incorporation of microscopic methods is yielding a wealth of information on the atomic and mesoscale dynamics of individual atoms, molecules, and particles on surfaces and in open volumes. Analysis of such data necessitates statistical frameworks to convert observed dynamic behaviors to effective properties of materials. Here, we develop a method for the stochastic reconstruction of effective local potentials solely from observed structural data collected from molecular dynamics simulations (i.e., data analogous to those obtained via atomically resolved microscopies). Using the silicon vacancy defect in graphene as a model, we apply the statistical framework presented herein to reconstruct the free energy landscape from the calculated atomic displacements. Evidence of consistency between the reconstructed local potential and the trajectory data from which it was produced is presented, along with a quantitative assessment of the uncertainty in the inferred parameters.
Einführung in die Kunststoffverarbeitung (2015)

You have accessEinführung in die KunststoffverarbeitungOct 2015Einführung in die KunststoffverarbeitungChristian Hopmann, Walter MichaeliChristian Hopmann, Walter Michaelihttps://doi.org/10.3139/9783446446281.fmSectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEmailLinkedIn next chapter FiguresReferencesRelatedDetails 2015Pages: I-XXPrint ISBN: 978-3-446-44627-4eISBN: 978-3-446-44628-1 Copyright & Permissions© 2015 Carl Hanser Verlag GmbH & Co. KGPDF downloadLoading ...
STRING-LIKE EXCITATIONS IN QED (1992)

The evolution of string-like excitations of fields (exponential line integrals) in free QED and in QED with static sources is investigated. It is shown that these excitations are not stable. They break down into electromagnetic radiation and the Coulomb field. The results are compared with calculations in the lattice QED.
Spatial Wireless Channel Prediction under Location Uncertainty (2015)

Spatial wireless channel prediction is important for future wireless networks, and in particular, for proactive resource allocation at different layers of the protocol stack. Various sources of uncertainty must be accounted for during modeling and to provide robust predictions. We investigate two channel prediction frameworks, classical Gaussian processes (cGP), and uncertain Gaussian processes (uGP), and analyze the impact of location uncertainty during learning/training and prediction/testing, for scenarios where measurements uncertainty are dominated by large-scale fading. We observe that cGP generally fails both in terms of learning the channel parameters and in predicting the channel in the presence of location uncertainties. In contrast, uGP explicitly considers the location uncertainty. Using simulated data, we show that uGP is able to learn and predict the wireless channel.
RoCS: Robotic Curriculum for young Surgeons (2022)

Robotic-assisted procedures gain increasing acceptance for daily surgical routine. However, structured training programs are designed for surgeons with high expertise. Hence, a comprehensive training curriculum was established to ensure a basic competence in robotic abdominal surgery for young surgeons during their residency. The aim of the current work is to propose a feasible and effective training concept. The development process of this training curriculum is based on a comprehensive literature review which led to the concept of "robotic curriculum for young surgeons" (RoCS). It was implemented in the daily routine of a German university hospital starting in 2020. The robotic assessment questionnaire (RAQ) was used for electronic data collection. After the initial phase adjustments, it led to an improvement of the initial version of the curriculum. RoCS is a multimodal training program containing basic training through assistance at the operation table during robotic-assisted operations and basic console training. Key elements are the robotic team time-out (rTTO), perioperative process standardization including feasible personnel scheduling and useful procedure clustering into organ systems, procedural steps and procedural step complexity. Evaluation of standardized communication, performance assessment, patient factors and individual overall workload using NASA Task Load Index is realizable. Flexibility and adaptability to internal organization processes of surgical departments are the main advantages of the concept. RoCS is a strong training tool to meet the specific needs of young surgeons and evaluate their learning success of robotic procedural training. Furthermore, comparison within the different robotic systems should be considered. Further studies are needed to validate a multicenter concept design.
Complications of Total Hip Arthroplasty (1988)

Complications of total hip arthroplasty , Complications of total hip arthroplasty , کتابخانه دیجیتال جندی شاپور اهواز
Abstract 10919: Prevalence, Awareness, Treatment, and Control of Hypertension in Hospitalized Patients with Atrial Fibrillation in China: Findings from the Improving Care for Cardiovascular Disease in China-Atrial Fibrillation Project (2021)

Introduction: Reports on the current status of hypertension control in patients with atrial fibrillation (AF) remain lacking in China. We aimed to provide the latest estimates on the prevalence, awareness, treatment, and control rates of hypertension and factors associated with uncontrolled hypertension in hospitalized patients with AF in China. Methods: Based on the Improving Care for Cardiovascular Disease in China-Atrial Fibrillation (CCC-AF) Project, hospitalized patients with AF collected from 236 hospitals in 30 provinces of China between February 2015 and December 2019 were included in current analysis. The prevalence, awareness, treatment, and control rates of hypertension were estimated according to the Chinese Hypertension Guideline. Hypertension was defined as SBP ≥140mmHg or DBP ≥90mmHg measured at the time of admission, or a documented history of hypertension. Multivariable logistic regression was used to analyze the factors associated with uncontrolled hypertension (SBP ≥140 mmHg or DBP≥90mmHg). Results: A total of 61,136 hospitalized patients with AF were included, and the prevalence of hypertension was 66.1%. The awareness, treatment, and control rates of hypertension were 80.1%, 55.8%, and 39.9%, respectively. Among patients treated for hypertension, only 46% had their blood pressure controlled. The rates varied by patient characteristics and geographic regions (Table). Younger age (18-45 years of age), rural insurance, alcohol drinking, history of heart failure, mitral stenosis, pre-hospital use of antiplatelet drugs, valvular AF, new-onset AF, and Northeast China were associated with uncontrolled hypertension in patients with AF. Conclusions: Hypertension is common in hospitalized patients with AF. Although most patients are aware of this comorbidity, the treatment and control rates of hypertension are still low. The management of hypertension in patients with AF needs to be further strengthened.
CNN-based Invariant Extended Kalman Filter for projectile trajectory estimation using IMU only (2021)

This paper presents a new method to estimate the position, velocity and orientation of a projectile using only accelerometers, gyrometers and magnetometers. This algorithm is composed of an Imperfect Right-Invariant Extended Kalman Filter (R-IEKF) and a Convolutional Neural Network (CNN) to dynamically optimize the measurement noise covariance matrix. This time-varying covariance matrix is always adjusted to each phase of the projectile flight. To evaluate the algorithm performances, mortar fire simulations are performed and a comparison between the estimated trajectory and the reference is shown. The estimates obtained with an Imperfect R-IEKF outperform Dead Reckoning estimates. In addition, the joint use of an Imperfect R-IEKF and a CNN enables to significantly reduce the estimation errors of the projectile trajectory.
Enhancement Of Water-oil Separation By Electrocoalescence (2014)

Dispersed water droplets in organic liquids are commonly encountered in the oil, chemical and biochemical industries. A typical example is the separation of dispersed water drops in crude oil, in order to prevent catalyst fouling, viscosity and volume increase, and to meet quality specifications of the crude oil. Water drops can be removed from a continuous oil phase by various techniques, such as chemical demulsification, gravity or centrifugal separation, pH adjustment, filtration, heat treatment, membrane separation and electrostatic-enhanced coalescence. Compared to other methods, electrical demulsification is considered to be superior in terms of energy efficiency. The electrostatic effects arise from the much higher values of dielectric permittivity and conductivity of water in comparison to oil. However, the mechanism of electrocoalescence is still not fully understood and most of the conventional electro-separators are rather bulky. There is, therefore, a compelling need to optimize the design and operation of these separators by means of a better fundamental understanding of the underlying physics. This study aims at investigating the coalescence behaviour of water droplets in sunflower oil when the aqueous phase is present in the form of a chain of droplets. Chains easily form in an emulsion, since droplets tend to align themselves with the direction of the electric field. A pair of ladder-wise electrodes was implemented to set up an electric field almost parallel to the flow direction of the droplets. This design ensures that adjacent droplets in a chain experience the maximum attractive force and does not significantly disturb the hydrodynamics of the continuous phase. The effect of the electric field strength, frequency and waveform on the process performance has been investigated. Both constant and pulsed dc fields have been applied to the dispersion. Sinusoidal, sawtooth and square waves have been employed as pulsed dc waveforms. Droplet size distributions at the outlet of the device were measured by image analysis. The outcomes of the research suggest that it is possible to find a combination of electrical field intensity, frequency and waveform to maximize the separation efficiency.
Optimization of the Extraction of Bioactive Compounds from Chaga Mushroom (Inonotus obliquus) by the Response Surface Methodology (2015)

본 연구에서는 차가버섯(Inonotus obliquus)의 유효성분과 항산화능이 최대가 되는 추출물의 제조를 위하여 반응표면분석법을 이용하여 최적 추출조건을 탐색하였다. 추출 수율, 총 폴리페놀 함량, 항산화능(ABTS 자유 라디칼 소거능, ORAC), <TEX>${\beta}$</TEX>-1,3-glucan 함량의 총 다섯 가지 반응변수에서 유의적인 이차 회귀식을 얻었고, 반응표면그래프와 등고선도를 통하여 최적 추출조건을 예측하였다. 각 반응변수에 따른 최적 추출조건은 추출 수율에서 50% (v/v), <TEX>$88.7^{\circ}C$</TEX>, 14.5 h, 총 폴리페놀 함량에서 9.2%, <TEX>$92.7^{\circ}C$</TEX>, 14.5 h, ABTS free radical scavanging activity에서 50.8%, <TEX>$92.7^{\circ}C$</TEX>, 14.5 h, ORAC에서 9.2%, <TEX>$92.7^{\circ}C$</TEX>, 1.5 h, <TEX>${\beta}$</TEX>-1,3-glucan 함량에서 90.8%, <TEX>$92.7^{\circ}C$</TEX>, 1.5 h으로 예측되었다. 각 반응변수의 예측 최대추출조건에서 실제 실험을 실행하여 예측 값과 비교해본 결과, 상대오차는 0.4-12.5%였다. 각 반응 변수에서 유의적인 이차 회귀식을 얻었으며, 예측 값과 실험 값의 오차가 크지 않아 반응표면모델이 최적 추출조건을 예측하는데 적합하다고 판단하였으며, 다섯 가지 반응 변수를 통합하는 최적 추출조건은 81.4%, <TEX>$92.7^{\circ}C$</TEX>, 14.5 h으로 예측하였다. 본 연구는 주로 열수추출물의 형태로 유통되는 차가버섯 추출물의 품질 개선을 위하여 에탄올 용매를 포함한 최적 추출조건을 설정하였고, 구체적인 추출 수율과 생리활성물질 함량 및 항산화능이 최대가 되는 추출조건을 제시하였다. This study determined the optimum extraction conditions based on five response variables (yield, total phenolics, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free radical scavanging activity, oxygen radical absorbance capacity (ORAC), and <TEX>${\beta}$</TEX>-1,3-glucan content) in chaga mushroom (Inonotus obliquus) using the response surface methodology, where three independent variables (ethanol concentration, extraction temperature, and extraction time) were optimized using a central composite design. The optimum ethanol concentration, extraction temperature, and extraction time were 50% (w/w), <TEX>$88.7^{\circ}C$</TEX>, and 14.5 h; 9.2%, <TEX>$92.7^{\circ}C$</TEX>, and 14.5 h; 50.8%, <TEX>$92.7^{\circ}C$</TEX>, and 14.5 h; 9.2%, <TEX>$92.7^{\circ}C$</TEX>, and 1.5 h; and 90.8%, <TEX>$92.7^{\circ}C$</TEX>, and 1.5 h for yield, total phenolics, ABTS, ORAC, and <TEX>${\beta}$</TEX>-1,3-glucan content, respectively. The predicted values of the response variables were compared with those of the extracts under the optimal extraction conditions to verify the models. The optimum extraction condition for the five response variables was predicted to be 81.4% ethanol at <TEX>$92.7^{\circ}C$</TEX> for 14.5 h.
A Novel Energy-Aware Approach for Locating Leaks in Water Pipeline Using a Wireless Sensor Network and Noisy Pressure Sensor Data (2015)

We propose a novel energy-aware approach to detect a leak and estimate its size and location in a noisy water pipeline using least-squares and various pressure measurements in the pipeline network. The novelty in our work hinges on the fusion of the duty-cycling (DC) and data-driven (DD) strategies, both well-known techniques for energy reduction in a wireless sensor network (WSN). To maximize the information gain and minimize the energy consumed by the WSN, we first study the effects of (a) various levels of sensor measurement uncertainty and (b) the use of the smallest possible number of pressure sensors on the overall accuracy of our approach. Using the DD strategy only, a noisy environment, and a small number of sensors, the performance of our scheme shows that, for small leak sizes, the estimation error in both leak location and size becomes unacceptably high. Next, using as few sensors as possible for an acceptable accuracy, we fused the DD strategy with the DC one to minimize the sensing, processing, and communication energies. The fusion approach yielded a better performance with significant energy saving, even in noisy environments. EPANET was used to model the pipeline network and leak and MATLAB to implement, analyze, and evaluate our fusion approach.
Formation of Osmium− and Ruthenium−Cyclobutylidene Complexes by Ring Expansion of Alkylidenecyclopropanes (2009)

Alkylidenecyclopropanes containing a chelation assistant at the terminal carbon atom of the olefinic moiety undergo an Os- or Ru-promoted ring expansion reaction to afford metal cyclobutylidene derivatives. The process occurs through a novel mechanism that implies a 1,2-migration of a CH(2) group of the three-membered ring from an olefinic carbon atom to the other one. It takes place, without direct participation of the metal, on a metallaheterocyclopentene intermediate which is generated from an eta(2)-methylenecyclopropane species stabilized by coordination of the chelation assistant.
Adipocytokines and the Metabolic Complications of Obesity (2008)

Inflamed fat in obesity secretes an array of proteins implicated in the impairment of insulin signaling. Further studies are needed to understand the triggers that initiate inflammation in adipose tissue and the role of each adipokine in the pathogenesis of insulin resistance.
The New 2nd Generation SRF R&D Facility at Jefferson Lab: TEDF (2012)

The US Department of Energy has funded a near-complete renovation of the SRF-based accelerator research and development facilities at Jefferson Lab. The project to accomplish this, the Technical and Engineering Development Facility (TEDF) Project has completed the first of two phases. An entirely new 3,100 m{sup 2} purpose-built SRF technical work facility has been constructed and was occupied in summer of 2012. All SRF work processes with the exception of cryogenic testing have been relocated into the new building. All cavity fabrication, processing, thermal treatment, chemistry, cleaning, and assembly work is collected conveniently into a new LEED-certified building. An innovatively designed 800 m2 cleanroom/chemroom suite provides long-term flexibility for support of multiple R&D and construction projects as well as continued process evolution. The characteristics of this first 2nd-generation SRF facility are described.