gebhart/patrepeval huggingface dataset:
Experimental investigation of steam‐CO<sub>2</sub>‐foam flooding: combination of CO<sub>2</sub>‐foam flooding and steam injection as an effective enhanced oil recovery (EOR) method in heavy oil reservoirs (2015)

Abstract The effects of steam‐CO 2 ‐foam flooding on the recovery of medium–heavy crude oil have been studied using sand pack models under reservoir conditions of 1550 psi and 131 °F. In order to investigate the enhanced oil recovery (EOR) potential of steam‐CO 2 ‐foam flooding, three different types of oil recovery experiments including CO 2 ‐foam flooding, CO 2 ‐foam flooding after water flooding, and steam‐CO 2 ‐foam flooding have been conducted. Experiments for the first two cases were conducted using 1.3 PV injection of CO 2 ‐foam. In the other case, 0.3 PV of steam injection was followed by 1 PV of CO 2 ‐foam flooding. The ultimate oil recovery values obtained using the first two scenarios have been 57.5 and 41.21, respectively, indicating that applying CO 2 ‐foam flooding as a tertiary EOR method after water flooding is not favorable. The ultimate oil recovery obtained during the third scenario has been 75.64%, which clearly shows that steam‐CO 2 ‐foam flooding improves oil recovery with lower pore volume of the injected CO 2 ‐foam. The effect of high surfactant concentration slug injection on the steam‐CO 2 ‐foam flooding performance has also been investigated. The ultimate oil recovery obtained using slug with a high concentration of surfactant solution (0.75 wt%) and CO 2 has been 83.88% which shows that slug increases foam stability and improves CO 2 ‐foam sweep efficiency. © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
Enabling Rapid End-to-End Programming of Mobile Manipulators (2017)

Programming mobile manipulator robots requires specialized knowledge of robot perception, manipulation, and software frameworks. This puts robot programming out of reach for programmers who have not invested the time to learn these skills. The goal of our research is to make it possible for all programmers to develop applications for mobile manipulators such as clearing a table, fetching items, or playing games with people. This extended abstract describes our current work on Code3, a framework that all programmers can use to program robots. A user study we conducted showed that non-roboticist programmers were able to use our system to program a PR2 robot to clear a table and retrieve snacks. We also discuss our plans to extend this system to make it more useful and usable for real-world use cases.
Zero skew clock net routing (2003)

The authors present an algorithm, called the zero skew segment tree method (ZSTM), for the clock net routing problem. To eliminate the lock skew and minimize the total wire length, ZSTM recursively partitions the sink nodes into two subsets which have equal loadings and minimum sum of diameters, and then constructs a zero skew segment tree according to the partitioning result. The final layout of the clock net can be decided by the channel information of the routing region. Experiments showed that ZSTM improved the wire length by 15% and the maximum delay by 3% over the published results. It also completely eliminated the clock skew.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Hardware-In-the-Loop Radar Test Simulator (2014)

In this work, a real-time hardware-in-the-loop (HIL) radar target and environment simulator (RTSim) is presented. RTSim is developed to test the radar systems starting from the initial algorithm development until the final field testing stages. In this way, it is possible to avoid the costly field tests in constantly changing conditions and test the radar systems in a controlled but highly complex environments. In the real-time operation scenario, Radar Signal Processing Unit (RSPU) sends the parameters of the radar signal to the RTSim. For each receive channel, RTSim generates baseband IQ (16-bit I, 16-bit Q) signals using these parameters and user programmed environment including targets, jammers, atmospheric effects, clutter, and radar related system noise. The generated baseband signals are sent to RSPU over fiberoptic lines.
A trend analysis of exploitations (2002)

We have conducted an empirical study of a number of computer security exploits and determined that the rates at which incidents involving the exploit are reported to CERT can be modeled using a common mathematical framework. Data associated with three significant exploits involving vulnerabilities in phf, imap, and bind can all be modeled using the formula C=I+S/spl times//spl radic/M where C is the cumulative count of reported incidents, M is the time since the start of the exploit cycle, and I and S are the regression coefficients determined by analysis of the incident report data. Further analysis of two additional exploits involving vulnerabilities in mountd and statd confirm the model. We believe that the models will aid in predicting the severity of subsequent vulnerability exploitations, based on the rate of early incident reports.
FPGA implementation of a novel, fast motion estimation algorithm for real-time video compression (2001)

A novel block matching algorithm for motion estimation in a video frame sequence, well suited for a high performance FPGA implementation is presented in this paper. The algorithm is up to 40% faster when compared to one of the fastest existing algorithms, viz., one-at-a-time step search algorithm without compromising either in the image quality or in the compression effected. The speed advantage is preserved even in the event of a sudden scene change in a video sequence. The proposed algorithm is also capable of dynamically detecting the direction of motion of image blocks. The FPGA implementation of the algorithm is capable of processing color pictures of sizes up to 1024x768 pixels at the real time video rate of 25 frames/second and conforms to MPEG-2 standards.
Multiple drug resistance (1999)

Multiple drug resistance to antibacterial agents, antifungals, antivirals, antiprotozoals, and antitumor agents has risen spectacularly in the last decade or so and presently threatens eventually to put an end to successful chemotherapy in all of the above fields. This review summarizes the known origins of the problem, its present dimensions, the means employed to combat the phenomenon and promising avenues for future developments.
Electrochromism of vanadium-titanium oxide thin films prepared by spin-coating method (1992)

Electrochromic properties of V2O5-TiO2 thin films prepared by a spin-coating method were strongly dependent on the film compositions and heat-treatment temperatures. It was found that the nearly amorphous film of V2O5-TiO2 (3:7 in molar ratio) heat-treated at 400 °C showed coloration to reddish brown when polarized at −0.8 V vs SCE. This new coloration was concluded to be ascribable to amorphous vanadium oxide.
Antitumor cytotoxic T‐lymphocyte response in human lung carcinoma: identification of a tumor‐associated antigen (2002)

We have isolated several cytotoxic T lymphocyte (CTL) clones from lymphocytes infiltrating a lung carcinoma of a patient with long survival. These clones showed a CD3+, CD8+, CD4-, CD28- phenotype and expressed a T-cell receptor (TCR) encoded either by Vbeta8-Jbeta1.5 or Vbeta22-Jbeta1.4 rearrangements. Functional studies indicated that these clones mediated a high human leukocyte antigen (HLA)-A2.1-restricted cytotoxic activity against the autologous tumor cell line. Interestingly, TCRbeta chain gene usage indicated that CTL clones identified in vitro were selectively expanded in vivo at the tumor site as compared to autologous peripheral blood lymphocytes (PBL). These findings provide evidence that an immune response may take place in non-small cell lung carcinoma and that effector T cells may contribute to tumor regression. Further study indicated that the CTL clones recognized the same decamer peptide encoded by a mutated alpha-actinin-4 gene. Using tetramers of soluble HLA-A2 molecules loaded with the mutated antigenic peptide, we have derived several anti-alpha-actinin-4 T-cell clones from patient PBL. These CTL, recognizing a truly tumor-specific antigen, may play a role in the clinical evolution of this lung cancer patient. Adoptive transfer of CTL clones in a SCID/NOD mice model transplanted with autologous tumor supported their antitumor effect in vivo.
Opioid overdose detection using smartphones (2019)

Early detection and rapid intervention can prevent death from opioid overdose. At high doses, opioids (particularly fentanyl) can cause rapid cessation of breathing (apnea), hypoxemic/hypercarbic respiratory failure, and death, the physiologic sequence by which people commonly succumb from unintentional opioid overdose. We present algorithms that run on smartphones and unobtrusively detect opioid overdose events and their precursors. Our proof-of- concept contactless system converts the phone into a short-range active sonar using frequency shifts to identify respiratory depression, apnea, and gross motor movements associated with acute opioid toxicity. We develop algorithms and perform testing in two environments: (i) an approved supervised injection facility (SIF), where people self-inject illicit opioids, and (ii) the operating room (OR), where we simulate rapid, opioid-induced overdose events using routine induction of general anesthesia. In the SIF (<i>n</i> = 209), our system identified postinjection, opioid-induced central apnea with 96% sensitivity and 98% specificity and identified respiratory depression with 87% sensitivity and 89% specificity. These two key events commonly precede fatal opioid overdose. In the OR, our algorithm identified 19 of 20 simulated overdose events. Given the reliable reversibility of acute opioid toxicity, smartphone-enabled overdose detection coupled with the ability to alert naloxone-equipped friends and family or emergency medical services (EMS) could hold potential as a low-barrier, harm reduction intervention.
In vitro antitumor mechanism of a new platinum complex, (-)-(R)-2-aminomethylpyrrolidine(1,1-cyclobutanedicarboxylato+ ++) platinum(II). (1991)

The antitumor mechanism of (-)-(R)-2- aminomethylpyrrolidine (1.1-cyclobutanedicarboxylato)platinum(II) (DWA2114R) was examined using cultured murine L1210 leukemia cells by estimating its effects on parameters such as proliferation, macromolecular synthesis, morphology and cell cycle progression. Each parameter was estimated in cells concomitantly exposed to the drug for 24-48 hr. More than 0.1 microM of DWA2114R markedly inhibited cell proliferation as well as DNA synthesis, and it decreased in mitotic index in a concentration-dependent manner. One microM of DWA2114R decreased DNA synthesis by 80% in the cells treated for 24 hr, while the inhibition of RNA synthesis was less than 40%. A significant inhibition of protein synthesis was caused only by treatment with a high concentration (100 microM) of the drug. Under complete cytostatic conditions (10 microM of DWA2114R), cell volume markedly increased and about 40% of the total cells were polynucleate. In addition, flow cytometrical analysis revealed that most of these cells were accumulated in the G2/M phase of the cell cycle, and a new peak located in the G2/M phase of tetraploid cells emerged. On the other hand, the cells treated with 100 microM of the drug did not increase in volume and their progress in the cell cycle was almost completely blocked.
Prevalence of house dust mites and dermatophagoides group 1 antigens collected from bedding, skin and hair coat of dogs in south‐west England (2005)

The house dust mites Dermatophagoides farinae (Df) and D. pteronyssinus (Dpt) are commonly implicated as allergens causing canine atopic dermatitis in the UK. However, there are few studies that characterize the exposure of UK pet dogs to these mites. The objectives of this study were to determine the prevalence of the mite species on the skin, hair coat and bedding of a population of pet dogs. Dust samples (n = 68) were collected from both dogs and their beds using a standardized vacuuming technique and stored at -20 degrees C. Mites were identified using accepted morphological criteria. House dust mite allergen concentrations were assayed using standardized ELISA for Dpt and Df group 1 allergens (Der p 1 and Der f 1). Mites were identified in 15/68 samples (22%) and Dpt was the most common. Df mites were not present. Der p 1 allergens were detected in 60% of samples, and Der f 1 in 6% of samples. There were no significant differences between the number of Der p 1 positive samples from dogs and the number of those from their bedding, or between the average Der p 1 concentrations from dogs and the number of those from their bedding. Contrary to studies elsewhere in Europe and the USA, these findings support studies of human asthma patients in the UK, where exposure to Df is rare, but to Dpt is common. As the prevalence of positive intradermal and serological reactions to Df in atopic dogs is high, further investigations are warranted to clarify true Df hypersensitivity or potential immunological cross-reactivity between mite allergens.
Musical tube (1979)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Jeffrey M. Hyman; Musical tube. J. Acoust. Soc. Am. 1 April 1979; 65 (4): 1088–1089. https://doi.org/10.1121/1.382610 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Structural design principles for low hole effective mass s-orbital-based p-type oxides (2017)

We demonstrate through first principles computations how the metal–oxygen–metal angle directly drives the hole effective mass (thus the carrier mobility) in p-type s-orbital-based oxides.
Design of Foundations for Wind Turbine with Analysis by Finite Element Method (2016)

Presents engineering solution of wind energy tower (WET) foundation and basement designing in hydrogeological conditions of the Ereymentau area. Calculations of forces perceived by the WET, and following bearing capacity, settlement and stability analysis are made by the Finite Element Method in the program complex SCAD and Plaxis 2D. The calculated results in paper had been presented in graphics and tabulars.
N-tuple features for OCR revisited (1996)

N-tuple features for optical character recognition have received only scattered attention since the 1960s. Our main purpose is to show that advances in computer technology and computer science compel renewed interest. N-tuple features are useful for printed character classification because they indicate the presence or absence of a given rigid configuration of n black and white pixels in a pattern. Desirable n-tuples fit each pattern of a specified (positive) training set of characters in at least p different shift positions, and fail to fit each pattern of a specified (negative) training set by at least n-q pixels in each shift position. We prove that the problem of finding a distinguishing n-tuple is NP-complete, by examining a natural subproblem with binary strings called the missing configuration problem. The NP-completeness result notwithstanding, distinguishing n-tuples are found automatically in a few seconds on contemporary workstations. We exhibit a practical search algorithm for generating, from a small training set, a collection of n-tuples with low class-conditional correlation and with specified design parameters n, p, and q. The generator, which is available on the Internet, is empirically shown to be effective through a comparison with a benchmark generator. We show experimentally that the design parameters provide a useful tradeoff between distinguishing power and generation time, and also between the conditional probabilities for the positive and negative classes. We explore the feature probabilities obtainable for various dichotomies, and show that the design parameters control the feature probabilities.
Coupled discrete element modeling of fluid injection into dense granular media (2013)

The coupled displacement process of fluid injection into a dense granular medium is investigated numerically using a discrete element method (DEM) code P F C 2 D ® coupled with a pore network fluid flow scheme. How a dense granular medium behaves in response to fluid injection is a subject of fundamental and applied research interests to better understand subsurface processes such as fluid or gas migration and formation of intrusive features as well as engineering applications such as hydraulic fracturing and geological storage in unconsolidated formations. The numerical analysis is performed with DEM executing the mechanical calculation and the network model solving the Hagen‐Poiseuille equation between the pore spaces enclosed by chains of particles and contacts. Hydromechanical coupling is realized by data exchanging at predetermined time steps. The numerical results show that increase in the injection rate and the invading fluid viscosity and decrease in the modulus and permeability of the medium result in fluid flow behaviors displaying a transition from infiltration‐governed to infiltration‐limited and the granular medium responses evolving from that of a rigid porous medium to localized failure leading to the development of preferential paths. The transition in the fluid flow and granular medium behaviors is governed by the ratio between the characteristic times associated with fluid injection and hydromechanical coupling. The peak pressures at large injection rates when fluid leakoff is limited compare well with those from the injection experiments in triaxial cells in the literature. The numerical analysis also reveals intriguing tip kinematics field for the growth of a fluid channel, which may shed light on the occurrence of the apical inverted‐conical features in sandstone and magma intrusion in unconsolidated formations.
Female-Predominant Expression of Fatty Acid Translocase/CD36 in Rat and Human Liver (2003)

The aim of this study was to identify genes for hepatic fuel metabolism with a gender-differentiated expression and to determine which of these that might be regulated by the female-specific secretion of GH. Effects of gender and continuous infusion of GH to male rats were studied in the liver using cDNA microarrays representing 3200 genes. Sixty-nine transcripts displayed higher expression levels in females, and 177 displayed higher expression in males. The portion of GH-regulated genes was the same (30%) within the two groups of gender-specific genes. The male liver had a higher expression of genes involved in fuel metabolism, indicating that male rats might have a greater capacity for high metabolic turnover, compared with females. Most notable among the female-predominant transcripts was fatty acid translocase/CD36, with 18-fold higher mRNA levels in the female liver and 4-fold higher mRNA levels in males treated with GH, compared with untreated males. This gender-differentiated expression was confirmed at mRNA and protein levels in the rat and at the mRNA level in human livers. Although purely speculative, it is possible that higher levels of fatty acid translocase/CD36 in human female liver might contribute to the sexually dimorphic development of diseases resulting from or characterized by disturbances in lipid metabolism, such as arteriosclerosis, hyperlipidemia, and insulin resistance.
Urine Cell-Free DNA Integrity Analysis for Early Detection of Prostate Cancer Patients (2015)

UCF-DNA integrity showed lower accuracy than PSA and would not seem to be a reliable marker for early prostate cancer diagnosis. Despite this, we believe that UCF-DNA could represent a source of other biomarkers and could detect gene alterations.
Real-time face detection during the night (2017)

To address the challenges in unconstrained real scenes face detection during the night, we propose a real-time night face detector. First, we use histogram equalization methods to process the input image of night to increase its contrast. Second, the image features called Promotion Normalized Pixel Difference [3] (PRO-NPD) is proposed. PRO-NPD features are computed as the ratio of difference to sum between two pixel values. Third, we use a deep quadratic tree to learn the optimal subset of PRO-NPD features and their combinations. We construct a Face Detection at Night in Surveillance (FDNS) database with 741 images in actual surveillance environment with various lighting. Experiment performed well in both accuracy and speed. We achieved 30 fps high-speed face detection in a robot with embedded ARM Cortex A17 quad-core 1.4GHz CPU.
Calcium Fortification of Soy Milk with Calcium‐Lecithin Liposome System (1984)

ABSTRACT Calcium ion was enveloped with a membrane system before addition to soy protein to prevent soy protein from being coagulated and precipitated by calcium ion. Soy lecithin was first sonicated in calcium salt solution to envelop the calcium ion with a liposomal structure composed of lecithin. Then, the calcium‐lecithin liposomes were added to soy protein solution. Precipitation and coagulation were not observed in this soy protein‐lecithin liposome system containing 60 mM Ca 2+ . By this method, it was possible to prepare calcium fortified soy milk containing more calcium (120 mg/100g) than in cow's milk. These results suggest that this calcium‐lecithin liposome system is useful for calcium fortification of soy milk.