gebhart/patrepeval huggingface dataset:
Hard real-time scheduling for low-energy using stochastic data and DVS processors (2001)

Article Share on Hard real-time scheduling for low-energy using stochastic data and DVS processors Author: Flavius Gruian Department of Computer Science, Lund University, Box 118, S-221 00 Lund, Sweden Department of Computer Science, Lund University, Box 118, S-221 00 Lund, SwedenView Profile Authors Info & Claims ISLPED '01: Proceedings of the 2001 international symposium on Low power electronics and designAugust 2001 Pages 46–51https://doi.org/10.1145/383082.383092Online:06 August 2001Publication History 103citation1,122DownloadsMetricsTotal Citations103Total Downloads1,122Last 12 Months23Last 6 weeks1 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my Alerts New Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Automated Helmet Detection for Multiple Motorcycle Riders using CNN (2019)

Automated detection of traffic rule violators is an essential component of any smart traffic system. In a country like India with high density of population in all big cities, motorcycle is one of the main modes of transport. It is observed that most of the motorcyclists avoid the use of helmet within the city or even in highways. Use of helmet can reduce the risk of head and severe brain injury of the motorcyclists in most of the motorcycle accident cases. Today violation of most of the traffic and safety rules are detected by analysing the traffic videos captured by surveillance camera. This paper proposes a framework for detection of single or multiple riders travel on a motorcycle without wearing helmets. In the proposed approach, at first stage, motorcycle riders are detected using YOLOv3 model which is an incremental version of YOLO model, the state-of-the-art method for object detection. In the second stage, a Convolutional Neural Network (CNN) based architecture has been proposed for helmet detection of motorcycle riders. The proposed model is evaluated on traffic videos and the obtained results are promising in comparison with other CNN based approaches.
Application Of Image Processing To The Analysis Of Three-Dimensional Flow Fields (1984)

A new method has been developed to apply image processing tech-niques to a more conventional stereoscopic measurement method. This new technique will provide both qualitative information and quantitative data, which are needed to achieve a better characterization of complex flow fields such as those in agitated vessels. The technique of flow visualization has been widely used to acquire qualitative realizations of flow structures and mixing mecha-nisms. However, the quantity of data obtained from such flow visualization studies has always been limiting. Sheu et al. [Chem. Eng. Comm. 17, 67 (1982)] used a stereoscopic cine camera to record the flow field in an agitated tank containing small, neutrally buoyant tracer particles and showed that three-dimensional velocities can be obtained from discrete sets of particle locations in stereo scenes. In this paper, the application of digital image processing to automate data acquisition procedures is presented. Instead of tracking particles manually, films (visual images) were digitized and were stored in digital form on magnetic tapes. A software package, utilizing THRESHOLDING and PATTERN MATCHING, has been developed to perform the following tasks: (1) particle image identification, (2) particle image tracking in consecutive frames, (3) stereo pair matching of particle trajectories, and (4) velocities evaluation in three-dimensional space evolving in time. The important attributes for flow characterization, such as velocity, acceleration, turbulent intensity, and possi-bly temperature, can be collected for analysis in much larger quantities at a much faster rate than ever before. Furthermore, considerable improvement in accuracy over that of a manually tracked method is also achieved. Most attrac-tive of all, this new combination of image processing and stereoscopic motion pictures is capable of providing sufficient data with high resolution to character-ize the flow field from a Lagrangian/Eulerian point of view.
Fragile watermarking for authenticating 3-D polygonal meshes (2005)

Designing a powerful fragile watermarking technique for authenticating three-dimensional (3-D) polygonal meshes is a very difficult task. Yeo and Yeung were first to propose a fragile watermarking method to perform authentication of 3-D polygonal meshes. Although their method can authenticate the integrity of 3-D polygonal meshes, it cannot be used for localization of changes. In addition, it is unable to distinguish malicious attacks from incidental data processings. In this paper, we trade off the causality problem in Yeo and Yeung's method for a new fragile watermarking scheme. The proposed scheme can not only achieve localization of malicious modifications in visual inspection, but also is immune to certain incidental data processings (such as quantization of vertex coordinates and vertex reordering). During the process of watermark embedding, a local mesh parameterization approach is employed to perturb the coordinates of invalid vertices while cautiously maintaining the visual appearance of the original model. Since the proposed embedding method is independent of the order of vertices, the hidden watermark is immune to some attacks, such as vertex reordering. In addition, the proposed method can be used to perform region-based tampering detection. The experimental results have shown that the proposed fragile watermarking scheme is indeed powerful.
Gas holdup in slurry bubble columns: Effect of column diameter and slurry concentrations (1997)

Abstract To study the influence of particle concentration on the hydrodynamics of bubble‐column slurry reactors operating in the heterogeneous flow regime, experiments were carried out in 0.10, 0.19, and 0.38‐m‐dia. columns using paraffinic oil as the liquid phase and slurry concentrations of up to 36 vol. %. To interpret experimental results a generalization of the “two‐phase” model for gas–solid fluid beds was used to describe bubble hydrodynamics. The two phase identified are: a dilute phase consisting of fast‐rising large bubbles that traverse the column virtually in plug flow and a dense phase that is identified with the liquid phase along with solid particles and entrained small bubbles. The dense phase suffers backmixing considerably. Dynamic gas disengagement was experimented in the heterogeneous flow regime to determine the gas voidage in dilute and dense phases. Experimental data show that increasing the solid concentration decreases the total gas holdup significantly, but the influence on the dilute‐phase gas holdup is small. The dense‐phase gas voidage significantly decreases gas holdup due to enhanced coalescene of small bubbles resulting from introduction of particles. The dense‐phase gas voidage is practically independent of the column diameter. The dilute‐phase gas holdup, on the other hand, decreases with increasing column diameter, and this dependence could be described adequately with a slight modification of the correlation of Krishna and Ellenberger developed for gas–liquid systems.
Auditory display of sound source distance (2002)

Although the majority of research on spatial sound reproduction has concentrated on the directional components of source location, it is clear that full 3-dimensional rendering also requires an understanding of how to reproduce sound source distance. This article reviews and describes recent psychophysical research on distance perception of sound sources, with emphasis on how various acoustical and nonacoustical factors contribute to perceived distance. Results from this research have important implications for distance simulation and reproduction in spatial auditory displays. 1.
CFD Predictions of Minivan's Front-end Flow Performance (2006)

The purpose of this paper is to assess the performance of different front-end configurations for a minivan under development. The Fluent CFD code is used to model the under-hood airflow for the vehicle. The cooling performance is found to be sensitive to changes in the fascia geometry particularly the lower parts in front-end configurations for the minivane.
Angiomotin regulates endothelial cell migration during embryonic angiogenesis (2007)

The development of the embryonic vascular system into a highly ordered network requires precise control over the migration and branching of endothelial cells (ECs). We have previously identified angiomotin (Amot) as a receptor for the angiogenesis inhibitor angiostatin. Furthermore, DNA vaccination targeting Amot inhibits angiogenesis and tumor growth. However, little is known regarding the role of Amot in physiological angiogenesis. We therefore investigated the role of Amot in embryonic neovascularization during zebrafish and mouse embryogenesis. Here we report that knockdown of Amot in zebrafish reduced the number of filopodia of endothelial tip cells and severely impaired the migration of intersegmental vessels. We further show that 75% of Amot knockout mice die between embryonic day 11 (E11) and E11.5 and exhibit severe vascular insufficiency in the intersomitic region as well as dilated vessels in the brain. Furthermore, using ECs differentiated from embryonic stem (ES) cells, we demonstrate that Amot-deficient cells have intact response to vascular endothelial growth factor (VEGF) in regard to differentiation and proliferation. However, the chemotactic response to VEGF was abolished in Amot-deficient cells. We provide evidence that Amot is important for endothelial polarization during migration and that Amot controls Rac1 activity in endothelial and epithelial cells. Our data demonstrate a critical role for Amot during vascular patterning and endothelial polarization.
Detection of<i>Staphylococcus aureus</i>Biofilm on Tampons and Menses Components (2003)

Culturing has detected vaginal Staphylococcus aureus in 10%-20% of women. Because growth mode can affect virulence expression, this study examined S. aureus-biofilm occurrence in 44 paired-tampon and vaginal-wash-specimens from 18 prescreened women, using fluorescent in situ hybridization (FISH). All 44 specimens were also analyzed for S. aureus by standard culturing on mannitol salt agar, which produced positive results for 15 of the 44 specimens. FISH detected S. aureus cells in all 44 specimens, and S. aureus biofilm was observed in 37 of the 44 specimens. Independent confirmation of the presence of S. aureus in specimens from all 18 women was also obtained by amplification, via polymerase chain reaction, of an S. aureus-specific nuclease gene. The results of this study demonstrate that S. aureus biofilm can form on tampons and menses components in vivo. Additionally, the prevalence of vaginal S. aureus carriage may be more prevalent than what is currently demonstrated by standard culturing techniques.
ChemInform Abstract: 4‐ARYL‐4‐AMINOCYCLOHEXANONES AND THEIR DERIVATIVES, A NOVEL CLASS OF ANALGESICS. 3. M‐HYDROXYPHENYL DERIVATIVES (1981)

Abstract Ausgehend von 4‐Hydroxy‐cyclohexanon (I) erhält man über die Ketale (II) und (III) die Aminonitrile (IV), die in einer Grignard‐Reaktion mit anschließender Etherspaltung zu den 4‐substituierten Cyclohexanonketalen (V) umgesetzt werden.
Fabry-Perot interferometric sensor (1981)

A simple compact optical sensor system consisting of a Fabry-Perot semiconductor laser cavity and an external reflector is reported. This sensor makes use of the effect of the amplitude and phase of the optical feedback from an external reflector on the light output of a semiconductor laser to sense acoustic waves, magnetic fields, acceleration, and temperature change.
Antitumor Activity of cGAMP via Stimulation of cGAS-cGAMP-STING-IRF3 Mediated Innate Immune Response (2016)

Immunotherapy is one of the key strategies for cancer treatment. The cGAS-cGAMP-STING-IRF3 pathway of cytosolic DNA sensing plays a pivotal role in antiviral defense. We report that the STING activator cGAMP possesses significant antitumor activity in mice by triggering the STING-dependent pathway directly. cGAMP enhances innate immune responses by inducing production of cytokines such as interferon-β, interferon-γ, and stimulating dendritic cells activation, which induces the cross-priming of CD8(+) T cells. The antitumor mechanism of cGAMP was verified by STING and IRF3, which were up-regulated upon cGAMP treatment. STING-deficiency dramatically reduced the antitumor effect of cGAMP. Furthermore, cGAMP improved the antitumor activity of 5-FU, and clearly reduced the toxicity of 5-FU. These results demonstrated that cGAMP is a novel antitumor agent and has potential applications in cancer immunotherapy.
[Hemodynamic effects of induced hypotension by ketanserin in anesthetized dogs]. (1992)

Hemodynamic effects of hypotension induced by ketanserin were investigated in 18 mongrel dogs under 0.87% halothane in oxygen (1 MAC). They were randomly allocated to one of two groups. Group C (n = 9) received no vasodilator therapy and served as a control and group K (n = 9) received 0.1% ketanserin solution. Mean arterial pressure decreased and was maintained at 60 mmHg for 60 minutes in group K. No change was noted in hemodynamic variables measured in group C throughout the experiment. During and after induced hypotension in group K, stroke volume index increased significantly compared with the control value. On the other hand, systemic vascular resistance was significantly reduced, reaching 50% of the control value at the end of the hypotensive period. Left ventricular maximum dp/dt showed a significant reduction during hypotension but then increased gradually to the control value. In addition, heart rate decreased significantly during and after induced hypotension, therefore these vasodilator effects were not accompanied by reflex tachycardia. Cardiac index remained unchanged throughout the experiment. Further, no changes in central venous pressure, mean pulmonary artery pressure, pulmonary capillary wedge pressure and pulmonary vascular resistance were observed. In conclusion, the data indicate that ketanserin is a potent systemic vasodilator producing stable hemodynamics. It also reduces systemic vascular resistance without reflex tachycardia and this is a favorable effect of ketanserin.
Wettability of Lead-Free Solders on Gold-Plated Copper Substrates (2008)

Wettability of lead-free solders (Sn-3Ag-0.5Cu, Sn-8Zn-3Bi, and Sn-9Zn) on Au-plated copper substrate was investigated with three different thicknesses of Au layer (0.1 μm, 0.3 μm, and 0.5 μm). The contact angles of solder alloys did not show a dependence on Au thickness. The contact angles of Sn-3Ag-0.5Cu and Sn-9Zn decreased, whereas the contact angle of Sn-8Zn-3Bi remained constant with an increase in temperature. Wetting balance test results indicated that thickness of Au plating affects wetting force, with thinner plating showing stronger wetting force and therefore, lower wetting time. Effects of different fluxes on wettability were also studied.
Geographic image retrieval in mobile guides (2007)

This paper describes an application that is based on geographic queries to retrieve personal pictures when visiting points of interest using mobile devices such as PDAs. The retrieved information can be visualized in different ways, including the spatial visualization of the pictures of the places visited. The paper describes the user interface features and the experiments that were made to illustrate the proposed methods.
Phase synchronization using zero crossing sampling digital phase-locked loop (2003)

The main objective of this paper is to analyze a zero crossing sampling digital phase-locked loop (PLL) as a building block for a phase synchronization system. To that purpose, the paper deals with modeling, analysis and implementation issues of the PLL. Derived are nonlinear and linear state-space models and a transfer function model. Operation of the PLL is also analyzed using frequency domain methods. An implementation of the PLL using a digital signal processor is described. On the basis of the derived models, two different system controllers are designed and the system transient response for the two cases is compared. The first controller is of a proportional-integral (PI) type and the second controller is minimum response time controller. It is shown how the input signal amplitude variations affect the system transient response. A solution for solving this problem is presented.
Single-chip 1×84 MEMS mirror array for optical telecommunication applications (2003)

The inherent ability of silicon micromachining to provide a multitude of precision aligned optical components on a single die naturally facilitates optical communication trends towards installing larger cross-connects and transmitting many channels on individual fibers. A micromachined mirror array has been designed and fabricated using the Analog Devices, Inc. (ADI) Optical iMEMS (R) process. The single-chip mirror die consists of 84 mirrors arranged in a linear array with an average pitch of 95 μm. Each mirror is equipped with a pair of polysilicon actuation electrodes located beneath the mirror. These two electrodes allow each mirror to be independently rotated around the axis parallel to the long dimension of the array using off-chip voltage commands. An operating mirror tilt of +/- 2 degrees is achieved with less than 130 volts of actuation. The design objectives including high mirror fill factor, optimal air damping, low mirror-to-mirror cross talk, acceptable voltage levels, and robustness posed significant challenges. This paper will describe how these challenges were overcome using an interdigitated mirror layout. The mirrors were successfully fabricated with good yield and characterized through both customer and ADI testing.
The Female Criminal: An Overview of Women's Drug Use and Offending Behaviour (2003)

Women's drug use is believed to be a defining factor in their participation in crime and it is argued that the severity of women's drug use is more closely related to their criminality than it is for men, particularly for prostitution and property crime. Women's drug use and offending are different from men's. For instance, female offenders are more likely than males to be incarcerated for non-violent crimes, such as drug offences (14 percent of female prisoners, compared to 9 percent of males), whereas male offenders are more likely to be incarcerated for violent crimes such as assault (23 percent of male prisoners, compared to 14 percent of females). Women drug users, particularly those who have been incarcerated, experience higher levels of abuse, economic hardship and other adversity in their lives than men. This paper outlines Australian and international research on the links between women's drug use and their criminal behaviour. It first describes the common risk factors for these activities, then reviews key data and research on women's drug use patterns and women's offending patterns. Finally, it considers what we know about the interrelationships between these two issues. The paper identifies that there is currently no national survey of women inmates' experience of drug use and offending. It suggests a need for this type of information to be collected for policy purposes, for example, in the management of women through the criminal justice system and in drug treatment settings.
FFU: far-future-using replacement algorithms for continuous media storage system (2002)

It is true that some conventional algorithms do not fit in continuous media (CM) environments because of their different properties. A typical example is the buffer replacement algorithms such as least recently used (LRU) and most recently used (MRU) strategies. These replacement policies are based on the referencing history for replacing buffered page with lower priority because it is not always possible to predict when a buffered page will be re-referred in a traditional DBMS. In contrast, since a CM storage system accesses CM segments sequentially, it can replace buffered segments which will not be re-referred in the near future. The idea of a far-future-using (FFU) buffer replacement algorithm is to share the buffer for concurrent transactions and to keep segments in the order of a re-referencing plan. We analyze the FFU buffer replacement algorithm for CM playback in terms of buffer hit ratio and required buffer size in comparison with LRU and MRU.
Optical Power Delivery and Data Transmission in a Wireless and Batteryless Microsystem Using a Single Light Emitting Diode (2014)

In this paper, a light emitting diode (LED) is used both to harvest energy and to transmit data in a wireless and batteryless microsystem. The microsystem consists of an LED die (350 μm × 350 μm), an application specific integrated circuit (230 μm × 210 μm) and a storage capacitor (0.5 mm × 1 mm) forming a small footprint. A modular optical energy management and data transmission framework is presented. A proof of concept design that transmits a 16-bit identification number serially at a data rate depending on the amount of received optical power is described. The LED has a power efficiency of 22%; better than silicon photodiodes under monochromatic light of 680-nm wavelength. The higher voltage supplied by the LED compared with a silicon photodiode allows circuitry to be powered directly from it without requiring the elevation of the photovoltaic potential, as in the case of using on-chip silicon photodiodes. Data transmission task of the LED requires a charge pump circuit to elevate the photovoltaic voltage. The 0.8 V generated by the LED under a 680-nm laser beam of 4-mW/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> optical power density is elevated to 1.4 V for optical transmission at a rate of 4 kbit/s. Under 70-mW/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> optical power density, 1.3 V is elevated to 2.4 V, achieving a data rate of 26 kbit/s.
Harmonic Analysis of Arterial Blood Pressure Signal Using Fourier Decomposition for Autonomic Health Assessment (2017)

Abstract In the present study, the arterial blood pressure waveform is decomposed utilizing Fourier to examine the fundamental frequency and to build up a linkage for autonomic health assessment. This methodology will produce practically identical fundamental frequency, either utilizing noninvasively recorded photoplethysmogram (PPG) or the blood pressure signal. In order to normalize the both, signal PPG waveform is approximated to arterial blood pressure waveform by nonlinear fitting blood pressure values to pulse amplitude using second order exponential. Further, the harmonic coefficients and fundamental frequencies of arterial blood pressure had been found. The basic fundamental frequency observed for healthy subjects is 1.315±0.002 Hz, hypertension subject is 0.47015±0.021 and hypercholestrolemia subject is 1.562±0.0231 and also a quick decay in the amplitude of harmonic coefficients is observed in healthy subjects as compared with diseased subjects. The observed basic fundamental frequency and amplitude decay of harmonic coefficients using Fourier decomposition helps to understand the autonomic health of a subject. Keywords: Arterial blood pressure, photoplethysmogram, harmonics, Fourier series Cite this Article Helen Mary M.C., Dilbag Singh, K.K. Deepak. Harmonic Analysis of Arterial Blood Pressure Signal Using Fourier Decomposition for Autonomic Health Assessment. Current Trends in Signal Processing. 2017; 7(3): 7–14p.
Breast cancer: prediction with artificial neural network based on BI-RADS standardized lexicon. (1995)

The BI-RADS lexicon provides a standardized language between mammographers and an ANN that can improve the PPV of breast biopsy.