gebhart/patrepeval huggingface dataset:
Improving parallel data transfer times using predicted variances in shared networks (2005)

It is increasingly common to use multiple distributed storage systems as a single data store within which large datasets may be replicated. Thus, we face the problem of how to access replicated data efficiently. Multiple-source parallel transfers can reduce access times by transferring data from several replicas in parallel. However, we then face the problem of deciding which data to fetch from which replicas. We propose a Tuned Conservative scheduling technique that uses predicted means and variances for network performance to make data selection decisions. This stochastic scheduling technique adjusts the amount of data fetched on a link according to not only the link performance but the expected variance in that performance. We incorporate our technique into the striped GridFTP server from the Globus Toolkit, and demonstrate that the technique can produce data transfer times that are significantly faster and less variable than those of other techniques.
Opportunistic Uplilnk Scheduling for 3G LTE Systems (2007)

In this paper we propose a heuristic opportunistic scheduler that is consistent with the resource allocation constraints of the uplink channel for 3G long term evolution (LTE) systems. Retransmission processes as well as channel conditions are taken into account in the formation of the scheduling decision. The heuristic scheduler could be seen a reasonable choice for solving the constrained resource allocation maximization problem since it is computationally feasible and can find a practical solution. We also formulate an integer programming problem that provides a theoretical optimal solution. The heuristic scheduler was found to perform relatively well when compared to the optimal solution.
Linear multi-view reconstruction of points, lines, planes and cameras, using a reference plane (2003)

This paper presents a new linear method for reconstructing simultaneously 3D features (points, lines and planes) and cameras from many perspective views by solving a single linear system. It assumes that a real or virtual reference plane is visible in all views. We call it the Direct Reference Plane (DRP) method. It is well known that the projection relationship between uncalibrated cameras and 3D features is non-linear in the absence of a reference plane. With a known reference plane, points and cameras have a linear relationship, as shown in [16]. The main contribution of this paper is that lines and cameras, as well as, planes and cameras also have a linear relationship. Consequently, all 3D features and all cameras can be reconstructed simultaneously from a single linear system, which handles missing image measurements naturally. A further contribution is an extensive experimental comparison, using real data, of different reference plane and non-reference plane reconstruction methods. For difficult reference plane scenarios, with point or line features, the DRP method is superior to all compared methods. Finally, an extensive list of reference plane scenarios is presented, which shows the wide applicability of the DRP method. 1
New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines (1999)

<div class="htmlview paragraph">Nitrogen oxide (NOx) and particulate matter (PM) emissions of diesel vehicles are regarded as a source of air pollution, and there is a global trend to enforce more stringent regulations on these exhaust gas constituents in the early years of the 21st century. On the other hand, the excellent thermal efficiency of diesel engines is certainly a welcome attribute from the standpoints of conserving energy and curbing global warming. Recently, many research institutes around the world have been using high-efficiency direct-injection (DI) diesel engines to research emission control technologies. The authors have also been engaged in such research [<span class="xref">1</span>,<span class="xref">2</span>]. As a result of this work, we have developed a new combustion concept, called Modulated Kinetics (MK), that reduces NOx and smoke simultaneously due to low-temperature and premixed combustion characteristics, respectively, without increasing fuel consumption [<span class="xref">3</span>,<span class="xref">4</span>].</div> <div class="htmlview paragraph">This paper describes the combustion and emission characteristics obtained when the MK combustion concept was applied to single-cylinder and multi-cylinder test engines. Combustion photographs and transient heat flux measurements were taken to investigate the characteristics of this new combustion process. The results indicate the possibility of obtaining high-efficiency, ultra-clean internal combustion engines for the 21st century.</div>
Nonalcoholic Steatohepatitis and the Cardiometabolic Syndrome (2006)

Nonalcoholic fatty liver disease (NAFLD) is now considered to be the most common liver disease in the United States and involves a spectrum of progressive histopathologic changes. Common risk factors associated with NAFLD include obesity, diabetes, and hyperlipidemia. Although most patients with NAFLD have simple hepatic steatosis, a significant number develop nonalcoholic steatohepatitis, which may progress to fibrosis, cirrhosis, or end-stage liver disease. There is increasing evidence that NAFLD is a common feature in patients with the cardiometabolic syndrome, a onstellation of metabolic, cardiovascular, renal, and inflammatory abnormalities in which insulin resistance is thought to play a key role in end-organ pathogenesis. NAFLD is usually diagnosed after abnormal liver chemistry results are found during routine laboratory testing. No therapy has been proven effective for treating NAFLD/nonalcoholic steatohepatitis. Expert opinion emphasizes the importance of exercise, weight loss in obese and overweight individuals, treatment of hyperlipidemia, and glucose control.
An 80ns address-date multiplex 1mb CMOS EPROM (1987)

This report will cover an EPROM organized as 64K×16b. Precharging techniques achieved an access time of 80ns Light-shielded cells control switching of redundant word lines.
The effect of blending temperature, composition, and shear rate on PET/Vectra A900 LCP blend viscosity and morphology (1991)

Abstract The rheological and morphological properties of several melt‐blended compositions of poly(ethylene terephthalate) (PET) and Vectra A900 liquid crystalline polyester were investigated, using blending temperature, composition, and shear rate as variables. Rheological behavior was determined at several shear rates on an Instron capillary rheometer at 300°C, and three‐dimensional surface plots of the results were prepared, detailing the effect on melt viscosity of changes in the variables. Scanning electron microscopy was used to examine the internal morphology of selected samples. In the preparation of melt blends containing an isotropic and anisotropic polymer, blending temperature and composition both influence the resulting morphology. These effects are accentuated during extrusion of the blends at low shear rates and diminished at high shear rates.
SH-wave propagation in heterogeneous media: velocity-stress finite-difference method (1984)

A new finite-difference (FD) method is presented for modeling SH-wave propagation in a generally heterogeneous medium. This method uses both velocity and stress in a discrete grid. Density and shear modulus are similarly discretized, avoiding any spatial smoothing. Therefore, boundaries will be correctly modeled under an implicit formulation. Standard problems (quarter-plane propagation, sedimentary basin propagation) are studied to compare this method with other methods. Finally a more complex example (a salt dome inside a two-layered medium) shows the effect of lateral propagation on seismograms recorded at the surface. A corner wave, always in-phase with the incident wave, and a head wave will appear, which will pose severe problems of interpretation with the usual vertical migration methods.
Pyrrolnitrin from Burkholderia cepacia: antibiotic activity against fungi and novel activities against streptomycetes (1998)

A bacterial strain identified as Burkholderia cepacia NB-1 was isolated from water ponds in the botanical garden in Tübingen, Germany, and was found to produce a broad spectrum phenylpyrrole antimicrobial substance active against filamentous fungi, yeasts and Gram-positive bacteria. In batch culture containing glycerol and L-glutamic acid, the isolate NB-1 produced the antibiotic optimally late in the growth phase and accumulated a main portion in their cells. Isolation and purification of the antibiotic from Burkholderia (Pseudomonas) cepacia NB-1 by acetone extraction, gel filtration on Sephadex LH-20 and preparative HPLC yielded 0.54 mg l-1 of a pure substance. Spectroscopic data (HPLC, MS and NMR) confirmed that the compound was pyrrolnitrin [3-chloro-4-(2'-nitro-3'-chloro-phenyl) pyrrole]. Pyrrolnitrin has an inhibitory effect on the electron transport system, as demonstrated by isolated mitochondria from Neurospora crassa 74 A. This inhibition was relieved by N,N,N',N'-tetramethyl-p-phenylenediamine dihydrochloride (TMPD), indicating that pyrrolnitrin blocked the electron transfer between the dehydrogenases and the cytochrome components of the respiratory chain. Among Gram-positive bacteria, pyrrolnitrin was most active against certain Streptomyces species, especially S. antibioticus, which has not previously been described in the literature. In the presence of pyrrolnitrin, aerial mycelium and spore formation of Strep. antibioticus was suppressed, although growth continued via substrate mycelium. The new findings of inhibition of streptomycetes and their secondary metabolism by pyrrolnitrin may contribute to the fact that Pseudomonas species predominate in soil and compete even with antibiotic-producing Streptomyces.
The Antebellum South: A Geographer's Interpretation (1931)

(1931). The Antebellum South: A Geographer's Interpretation. Annals of the Association of American Geographers: Vol. 21, No. 1, pp. 1-33.
Subjective evaluation of visual discomfort caused from stereoscopic 3D video using perceptual importance map (2012)

In this paper, we propose a visual discomfort evaluation method for stereoscopic 3D video using perceptual importance map. Generally, visual attention is more engaged by salient region having large disparity than the scene's background or other foreground regions. So, we extract perceptual importance map generated from a color based saliency map, an edge based saliency map and a disparity map to assess visual discomfort. Our assessment framework consists of four sequential stages: perceptually important region extraction; motion-in-depth computation; salient object's velocity, depth and viewing time extraction; and visual discomfort computation. Using this framework, we analyze the effects of motion in respect to depth, viewing time and display size while measuring visual discomfort. The experimental results showed that visual discomfort increases in proportion with the speed of motion-in-depth and viewing time. We also found that the viewer's discomfort caused from watching stereoscopic 3D content on the smaller-sized display is higher than with a larger-sized display.
Air Classification for Reclamation Processing of Solid Wastes (1970)

Abstract : Since enactment of the Solid Waste Disposal Act (PL 89-272) on October 20, 1965, the spotlight of publicity has been thrown on the nation's solid-wastes-management problem. By means of national conferences, symposia, public hearings, and the like, the staff of the federal solid-wastes program is carrying out a dual-purpose, public-information program. One objective of this program is to awaken a lethargic public and its elected representatives. The other is to present the solid-waste challenge to professional engineers and technical managers practicing in the disciplines involved. Those already in the field know of the rapid increase in the quantities of solid wastes that can be brought about by sir-pollution-control legislation that outlaws open burning, the increased quantities of waste generated by populations whose living habits are undergoing changes that accompany increased affluence, and the increases in demolition waste resulting from massive programs of urban renewal, central-city freeway construction, and the replacement of older buildings with modern structures.
Optimization of Power Steering Systems Vibration Reduction in Passenger Cars (1995)

<div class="htmlview paragraph">This paper develops an approach in how to optimize upfront at the early design stage the instabilities of a power steering system for passenger cars by using specialized computer simulation developed by the authors. This will include a model of a wheel to wheel steering system with the all components associated.</div> <div class="htmlview paragraph">A time domain approach will be demonstrated with a correlation that includes in vehicle tests.</div> <div class="htmlview paragraph">After having analyzed the overall system a study will be developed on how to tune steering systems through a dual analytical approach of hose design in the power steering systems:</div> <div class="htmlview paragraph"> <ul class="list disc"> <li class="list-item"> <div class="htmlview paragraph"><b>A lumped parameter mode</b> necessary for the time and frequency domain analysis and transient behaviour of the fluid into the hoses. Its limits will be highlighted.</div> </li> <li class="list-item"> <div class="htmlview paragraph"><b>A continuous model</b> for steady state behaviour in the frequency domain.</div> </li> </ul> </div>
Accurate Classification of the Internet Traffic Based on the SVM Method (2007)

The need to quickly and accurately classify Internet traffic for security and QoS control has been increasing significantly with the growing Internet traffic and applications over the past decade. Pattern recognition by learning the features in the training samples to classify the unknown flows is one of the main methods. However, many methods developed in the previous works are too complicated to be applied in real-time, and the prior probabilities based on the training samples are severely biased. This paper uses the SVM (support vector machine) method to train 7 classes of applications of different characteristics, captured from a campus network backbone. A discriminator selection algorithm is developed to obtain the best combination of the features for classification. Our optimized method yields approximately 96.9% accuracy for un-biased training and testing samples. For regular biased samples, the accuracy is about 99.4%. Furthermore, all the feature parameters are computable in real time from captured packet headers, suggesting real time network traffic classification with high accuracy is achievable.
Signal Recognition Particle and SecA Cooperate during Export of Secretory Proteins with Highly Hydrophobic Signal Sequences (2014)

The Sec translocon of bacterial plasma membranes mediates the linear translocation of secretory proteins as well as the lateral integration of membrane proteins. Integration of many membrane proteins occurs co-translationally via the signal recognition particle (SRP)-dependent targeting of ribosome-associated nascent chains to the Sec translocon. In contrast, translocation of classical secretory proteins across the Sec translocon is a post-translational event requiring no SRP but the motor protein SecA. Secretory proteins were, however, reported to utilize SRP in addition to SecA, if the hydrophobicity of their signal sequences exceeds a certain threshold value. Here we have analyzed transport of this subgroup of secretory proteins across the Sec translocon employing an entirely defined in vitro system. We thus found SecA to be both necessary and sufficient for translocation of secretory proteins with hydrophobic signal sequences, whereas SRP and its receptor improved translocation efficiency. This SRP-mediated boost of translocation is likely due to the early capture of the hydrophobic signal sequence by SRP as revealed by site-specific photo cross-linking of ribosome nascent chain complexes.
Skin Diseases Modeling using Combined Tissue Engineering and Microfluidic Technologies (2016)

In recent years, both tissue engineering and microfluidics have significantly contributed in engineering of in vitro skin substitutes to test the penetration of chemicals or to replace damaged skins. Organ-on-chip platforms have been recently inspired by the integration of microfluidics and biomaterials in order to develop physiologically relevant disease models. However, the application of organ-on-chip on the development of skin disease models is still limited and needs to be further developed. The impact of tissue engineering, biomaterials and microfluidic platforms on the development of skin grafts and biomimetic in vitro skin models is reviewed. The integration of tissue engineering and microfluidics for the development of biomimetic skin-on-chip platforms is further discussed, not only to improve the performance of present skin models, but also for the development of novel skin disease platforms for drug screening processes.
Fabrication technology for a chronic in-vivo pressure sensor (1984)

This work addresses the problems of packaging and process compatibility inherent in the fabrication of integrated silicon sensors. A monolithic piezoresistive absolute pressure sensor designed for catheter tip mounting has been developed. The 1mm × 0.6 mm × 5 mm sensor chip includes on-chip circuitry and a novel lead attachment method to improve chronic stability. The simple on-chip circuit (voltage regulator, amplifier, and output driver) provides some improvement in stability allows process de-bugging, and provides a basis for later complex circuits. This circuit is fabricated at the bottom of a 5 µm deep well etched in the silicon surface, and is then hermetically sealed by coverage with an anodically bonded glass plate. The reference chamber for the absolute pressure sensor is sealed by the same bonding process. Diffused cross-unders beneath the glass connect to etched tunnels at the chip edge into which stainless steel wires can be gang-soldered, giving small-area robust lead attachment. The fabrication technology developed for this sensor should be applicable to a variety of sensor types.
Sweeping and Irradiation Studies in Quartz (1984)

Sweeping (in air) and irradiation effects in quartz were examined in a program aimed at the improvement of quartz material for high-stability radiation-resist ant resonators. Resistivity changes as a function of transported charge were recorded and depth-profiled secondary ion mass spectrometry (SIMS) results were used to analyze for impurities before and after 1 -irradiation. Both swept and unswept samples of high purity cultured quartz were studied. Fully swept samples were found to be nearly free of etch channels. Color-center striae in irradiated unswept samples were analyzed using spatially scanned absorption spectrometry. The scanned absorption at 460 nm was then correlated with SIMS analyses at selected regions within the sample. Radiation induced steady state frequency shifts were measured using swept resonator samples from two different suppliers of high purity quartz. No significant steady state frequency shift differences were found between the two groups of resonators when irradiated to 0.76 Mrad and 7.6 Mrad 1 eve1 s.
Parallel and deterministic algorithms from MRFs: surface reconstruction (1991)

Deterministic approximations to Markov random field (MRF) models are derived. One of the models is shown to give in a natural way the graduated nonconvexity (GNC) algorithm proposed by A. Blake and A. Zisserman (1987). This model can be applied to smooth a field preserving its discontinuities. A class of more complex models is then proposed in order to deal with a variety of vision problems. All the theoretical results are obtained in the framework of statistical mechanics and mean field techniques. A parallel, iterative algorithm to solve the deterministic equations of the two models is presented, together with some experiments on synthetic and real images.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
[Effects on the amount of total hemolytic complement levels(CH50) and immunoglobulin in serum induced by the implantation of biomaterials into rats]. (1999)

Three kinds of biomaterials, PES, YP and SR, were implanted into the subcutaneous tissue of rats and stayed there for 7, 14, 30, 60 and 90 days. Then using the immunity assaying system (Beckman, ICS) and the standard method of measuring the value of total hemolytic complement levels (CH50), we determined the values of immunoglobulin and CH50 in serum of rats. The results showed the amounts of IgG and IgA of rats with the implanted YP and SR materials were significantly higher than those of the control groups, and their value of CH50 was significantly lower than that of the control group. There was no significant difference between the PES group and the control group.
Synthesis and Molecular Structures of Hydrotris(dimethylpyrazolyl)borate Complexes of the Lanthanides (1996)

The reaction of lanthanide triflates with 2 equiv of potassium hydrotris(dimethylpyrazolyl)borate (Tp(Me)()2) gives good yields of complexes of composition Ln(Tp(Me)()2)(2)OTf. For La (2), Ce (3), Pr (4), and Nd (5) the complexes are seven-coordinate in the solid state with the triflate group coordinated to the metal in unidentate fashion. Complex 5 crystallizes in the monoclinic space group P2(1)/c with a = 17.629(3) Å, b = 12.740(2) Å, c = 18.163(3) Å, beta = 107.35(1) degrees, V = 3893(1) Å(3), Z = 4, and R(w) = 0.0458. For the complexes of Y (1), Sm (6), Eu (7), Gd (8), Dy (9), Ho (10), and Yb (11), the smaller size of the metal ion leads to ejection of the triflate from the coordination sphere and the complexes are ionic in the solid state with a six-coordinate metal center. Complex 11 crystallizes in the monoclinic space group C2/m with a = 16.593(7) Å, b = 13.671(5) Å, c = 8.746(2) Å, beta = 91.66(3) degrees, V = 1983(1) Å(3), Z = 2, and R(w) = 0.0416. In solution, however, complex 6 adopts a seven-coordinate molecular structure with the triflate ion within the first coordination sphere.
Examination of the mechanism by which heparin antagonizes activation of a model endothelium by interferon-gamma (IFN-γ) (1997)

IFN-gamma increases the potential immunogenicity of vascular endothelial cells by up-regulation of intercellular adhesion molecule-1 (ICAM-1) and class I MHC antigen expression and by induction of class II MHC antigens and certain chemokines. In this study the mechanism by which the glycosaminoglycan (GAG) heparin antagonizes the activation of a model endothelium by IFN-gamma was investigated. Radioligand binding assays demonstrated that total binding of 125I-IFN-gamma to the EAhy.926 endothelial hybridoma cell line was reduced in the presence of heparin or heparan sulphate (HS); the structurally dissimilar GAG chondroitin sulphate had no effect. Treatment of the cells with chlorate, a metabolic inhibitor of GAG sulphation, was found to reduce both the subsequent binding of IFN-gamma and its ability to induce expression of class II MHC antigens. Treatment with heparinase II dramatically reduced the binding of IFN-gamma, while chondroitin ABC lyase had no effect. A cationic peptide from the C-terminal region of IFN-gamma was also found to reduce binding of intact IFN-gamma to the cells. These results appear to demonstrate that IFN-gamma is sequestered at the surface of endothelial cells by electrostatic interaction between specific basic amino acid residues and sulphated domains on HS, the most abundant endothelial GAG. This interaction is competitively inhibited by heparin, which is structurally related to HS. These observations are consistent with the model that IFN-gamma is bound by membrane-associated HS before engagement with the high-affinity receptor and signal transduction. Inhibition of the interaction between proinflammatory cytokines and membrane-associated GAG molecules may provide a mechanism for inducing clinically useful immunosuppression.