gebhart/patrepeval huggingface dataset:
Centrifugal Process Compressors: Radial vs. Tangential Suction Nozzles (1985)

Experimental investigations were conducted on a radial and a tangential inlet duct to an industrial centrifugal compressor. The tangential nozzle will replace the conventional radial nozzle if a block foundation is used with no pipes allowed on the upper casing half. Models were air tested with and without suction elbows. The tangential duct was tested with various positions of the shaped flow splitter and with variable intake rib angles with the objective to minimize distortions of axial and circumferential velocity profiles and the moment of momentum in the annular eye opening of the impeller. An optimum configuration for the tangential duct was found with smooth profiles and eliminated global vortex at the exit annulus.
High-gain triple-band reconfigurable Vivaldi antenna (2014)

A frequency agile Vivaldi antenna whose operating frequency band can be switched is proposed. High-performance radio-frequency micro-electromechanical system (RF-MEMS) switches allow tuning of the operational band between 2.0 GHz, 3.7 GHz and 5.2 GHz. The average gains of the antenna for the low, mid and high bands are 8.5 dBi, 12.5 dBi and 13.7 dBi, respectively. This reconfigurable antenna offers improved performance over multiple, wideband and multiband antennas without increases in cost and size.
The regulation of steroidogenesis is different in the two types of ovine luteal cells (1985)

Ovine luteal tissue contains two distinct steroidogenic cell types, small (8-20 microns) and large (greater than 20 microns), which differ based on morphological and biochemical criteria. Unstimulated small cells secrete low levels of progesterone, respond to LH or dibutyryl cAMP (dbcAMP) with enhanced secretion of progesterone, and contain most of the receptors for LH. The unstimulated large cells, conversely, secrete high levels of progesterone, have few, if any, receptors for LH, and do not respond to LH or dbcAMP with increased progesterone secretion. The lack of response to dbcAMP by large cells was investigated. Large cells incubated in the presence of cholesterol, ram serum, or 25-hydroxycholesterol did not demonstrate substrate limitation. Hormone-independent stimulation of adenylate cyclase by cholera toxin or forskolin resulted in increased adenylate cyclase activities (P less than 0.01), cAMP accumulation (P less than 0.05), and the binding of endogenous cAMP (P less than 0.05) by type I cAMP-dependent protein kinase in both small and large cells. These treatments were accompanied by enhanced secretion of progesterone (P less than 0.05) in small cells. In contrast, large cells did not respond with an increase in progesterone secretion under these conditions. These observations suggest that the high rate of secretion of progesterone in unstimulated large cells is not regulated by cAMP.
Therapeutic Vaccine for Genital Herpes Simplex Virus-2 Infection: Findings From a Randomized Trial (2017)

NCT01667341 (funded by Genocea).
Monocolonization of Germ-Free Mice with<i>Bacteroides fragilis</i>Protects against Dextran Sulfate Sodium-Induced Acute Colitis (2014)

Ulcerative colitis is inflammatory conditions of the colon caused by interplay of genetic and environmental factors. Previous studies indicated that the gut microflora may be involved in the colonic inflammation. Bacteroides fragilis (BF) is a Gram-negative anaerobe belonging to the colonic symbiotic. We aimed to investigate the protective role of BF in a colitis model induced in germ-free (GF) mice by dextran sulfate sodium (DSS). GF C57BL/6JNarl mice were colonized with BF for 28 days before acute colitis was induced by DSS. BF colonization significantly increased animal survival by 40%, with less reduction in colon length, and decreased infiltration of inflammatory cells (macrophages and neutrophils) in colon mucosa following challenge with DSS. In addition, BF could enhance the mRNA expression of anti-inflammatory-related cytokine such as interleukin 10 (IL-10) with polymorphism cytokine IL-17 and diminish that of proinflammatory-related tumor necrosis factor α with inducible nitric oxide synthase in the ulcerated colon. Myeloperoxidase activity was also decreased in BF-DSS mice. Taking these together, the BF colonization significantly ameliorated DSS-induced colitis by suppressing the activity of inflammatory-related molecules and inducing the production of anti-inflammatory cytokines. BF may play an important role in maintaining intestinal immune system homeostasis and regulate inflammatory responses.
[Use of movalis in treatment of dorsopathy]. (2004)

In regard to therapeutic effect of different medications used in dorsopathy treatment, non-steroid anti-inflammatory drugs rank first. Compounds selectively blocking COX-2 received special attention due to their minimal impact on COX-1 that provides good anti-inflammatory and analgesic effect with simultaneous dramatic reduction of ulcerogenic activity. One of the first drugs with such an action is Movalis (meloxicam). Thirty patients were divided into 2 groups, the first including 22 patients with vertebral diseases and musculotonic syndromes; patients of the second group (8) had a pain syndrome caused by disk herniation. During the first 3 days Movalis was administered in the form of injections (15 mg/day) and in the same doses in tablets for the following 20 days. After the treatment course, complete arrest of pain syndrome was observed in 33.3% patients, significant improvement--in 53.3% and insignificant effect--in 13.3%. Patients with reflex pain and musculotonic syndromes had a good analgesic effect after 3-day course of intramuscular injections, with the effect being mostly expressed in 8-10 days. Patients with diskogenic compressive radicular syndrome demonstrated a stable analgesic effect after a week of Movalis intake in tablet form. Movalis is well tolerated; side effects have occurred in 10 patients but they were minimal and did not lead to the change of medication dose or additional therapy.
An ab initio investigation of zinc chloro complexes (2006)

A series of geometry, frequency, and energy calculations of chloroaquazinc(II) complexes were carried out at up to the MP2/6-31+G* level. A thorough examination of all species up to and including hexacoordinate species, and with up to six chlorides, was carried out. The structures of the complexes are compared with experimental data where available. The solution chemistry of zinc(II) in the presence of chloride is discussed, and Raman spectra of zinc perchlorate with increasing amount of chloride are presented.
A process for identifying predictive correlation patterns in service management systems (2010)

By using the remote functions of a modern IT service management system infrastructure, it is possible to analyze huge amounts of log file data from complex technical equipment. This enables a service provider to predict failures of connected equipment before they happen. The problem most providers face in this context is finding "a needle in a haystack" - the obtained amount of data turns out to be too large to be analyzed manually. The following report describes a process to find suitable predictive patterns in log files for the detection of upcoming critical situations. The identification process may serve as a hands-on guide. It describes how to connect statistical means, data mining algorithms and expert domain knowledge in the domain of service management. The process was developed in a research project which is currently being carried out within the Siemens Healthcare service organization. The project deals with two main aspects: first, the identification of predictive patterns in existing service data and second, the architecture of an autonomous agent which is able to correlate such patterns. This paper summarizes the results of the first project challenge. The identification process was tested successfully in a proof of concept for several Siemens Healthcare products.
A shape-from-texture algorithm based on human visual psychophysics (1994)

We propose an algorithm for the determination of three dimensional shape and perspective based on the response of the human visual system to changes in visual textures. Current computer vision algorithms are computationally intensive and show inherent difficulties in integrating additional cues for the determination of shape, such as shading, contour, or motion. In order to develop a fast and simple mechanism less constrained for integrating other cues, we incorporated aspects of the physiological properties of cortical cells in VI into a network model. We provide psychophysical evidence that the local spatial frequency spectrum is represented by the spatially averaged peak frequency (APF). After normalization, this APF measures texture compression and leads to estimates of 3D shape and depth. Simulations of the model show good agreement with human responses to a range of textured images.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Low-Cost, High-Precision DAC Design Based on Ordered Element Matching (2018)

Digital-to-analog converter (DAC) is one of the circuits with increasing demands on high-accuracy requirements. However, the cost of existing high-precision DACs is high and difficult to reduce because implementation hardly benefits from the scaling of digital circuits. In this paper, a low-cost, high-precision DAC structure based on ordered element matching (OEM) theory was proposed and its design methodology is discussed. It achieves high matching accuracy by applying the OEM calibration to the resistors in unary weighted segments and calibrating the gain error between different segments by small calibration DAC. A MATLAB behavioral model of a 20-bit R-2R DAC is built, and the statistical results show that the proposed DAC structure can achieve the same accuracy in less than 1/62 resistor area compared with state of the art.
Weld Distortion Prediction With Virtual Analysis For Practical Applications (2014)

The reduction in time and facilities involved in the partial elimination or mitigation of welding distortion is one of the key points for manufacturers. Welding distortion is influenced by the sequence and position of joints, the clamping configuration and the design of the assembly. For large complex assemblies, the range of these options may be large. Therefore the use of numerical simulations at an early stage of the product development process is valuable to enable a wide range of these factors to be explored with the aim of minimizing welding distortions before production commences. This thesis investigates two techniques for simulation of welding distortions based on shrinkage analysis and transient analysis. Both techniques are evaluated for an automotive assembly. The shrinkage simulations were built and solved using the Weld Planner, whereas the transient simulations were solved with Sysweld. The rapid simulation speed enabled a wide range of welding materials and clamping positions to be explored, leading to recommendations for reduction of the distortions. The solution times were found to be significantly lower for the shrinkage analysis than the transient analysis.
Back-drivable and Inherently Safe Mechanism for Artificial Finger (2010)

This paper shows mechanisms for artificial finger based on a planetary gear system (PGS). Using the PGS as a transmitter provides an under-actuated system for driving three joints of a finger with back-drivability that is crucial characteristics for fingers as an end-effector when it interacts with external environment. This paper also shows the artificial finger employed with the originally developed mechanism called "double planetary gear system" (DPGS). The DPGS provides not only back-drivable and under-actuated flexion-extension of the three joints of a finger, which is identical to the former, but also adduction-abduction of the MP joint. Both of the above finger mechanisms are inherently safe due to being back-drivable with no electric device or sensor in the finger part. They are also rigorously solvable in kinematics and kinetics as shown in this paper.
GPS multipath detection and rectification using 3D maps (2013)

Global Navigation Satellite Systems (GNSSs) suffer from the problems of invisible satellites and multipath effect in urban canyons. Many approaches have been employed to eliminate multipath signals in order to reduce positioning errors. Among these, those that consider the geometry of surrounding buildings to improve the evaluation of possible multipath signals have gained most interest. However, such approaches, although successful, require many satellites for positioning after eliminating multipath signals. This study proposes an approach in which the multipath signals themselves are used for positioning error correction. The proposed algorithm evaluates the pseudoranges of the possible multipath signals by referring to the building geometry. The assumed position is estimated by using the pseudoranges and is evaluated by the likelihood of the possible positioning error. The proposed method was verified through field experiments in urban canyons in Tokyo.
Wet steam for thermal recovery (1966)

The importance of the quality of steam is emphasized by a graph which gives a comparison of wet and dry steam, and of wet steam and saturated water. While the use of steam tables is recommended for most computations, it is useful to have approximate formulas if tables are not available, or if calculations are to be made for intermediate pressure values not listed in tables. A set of formulas has been derived for use in steam computations. A digital computer was used to obtain the formulas which are given, by using the method of least squares on a large amount of steam data. The formulas are good for a pressure range of 15 to about 1000 psia. While it is advantageous to use superheated steam in many industrial applications, it is doubtful if such steam will find application in thermal-recovery operations, at least as long as the currently available steam generators are used. The formulas given can be used to calculate the properties of wet steam, when used in conjunction with steam quality. These formulas are best suited for computations using a slide rule. The accuracy could have been improved if more complicated equations were fitted to steam data.
A Monte Carlo model for the absorption and flux distributions of light in tissue (1983)

A Monte Carlo computer model has been developed to study the propagation of light in tissues. Light attenuation is assumed to result from absorption and isotropic scattering. The model has been used to predict the distribution of absorbed dose in homogeneous tissues of different absorption/scattering ratios, for illumination both by external light beams and via implanted optical fibers. The photon flux into optical fibers placed in the tissue as detectors has also been investigated. The results are interpreted in relation to the use of visible light irradiation for photo radiation therapy.
Radical Polymers and Their Application to Organic Electronic Devices (2014)

Macromolecules bearing stable radical groups have emerged as extremely useful active materials in organic electronic applications ranging from magnetic devices to flexible batteries. Critical to the success of these open-shell polymers has been the readily tunable nature of their molecular architectures; this important molecular structure–property–performance design paradigm has allowed for significant device performance metrics to be achieved. In this Perspective, the recent advancements regarding the design and device functionality of a common class of open-shell macromolecules, radical polymers, are discussed. Here, radical polymers are defined as macromolecules with nonconjugated carbon backbones, whose optoelectronic functionalities arise due to the presence of stable radical sites on the pendant groups of macromolecular chains. This class of materials provides a unique platform for the design of unique optical and electronic properties in soft materials; however, as with many organic electronic materials, transitioning these gains from the laboratory to the commercial scale remains a primary challenge. As such, we provide context for the significant accomplishments that have been made in the field, describe how these advances have been translated to high-performance devices, and discuss future areas of evaluation for these next-generation polymer electronic materials.
Electrowetting devices with transparent single-walled carbon nanotube electrodes (2007)

Microfluidic devices based on the electrowetting principle, more specifically electrowetting on dielectric, were fabricated using transparent single-walled carbon nanotube films as electrodes. The films were spray coated on glass and polyethylene terephalate substrates. The transmittance and sheet resistance remain unchanged after patterning the films using typical photolithography and plasma etching. Operation of water droplets over the patterned nanotube electrodes was demonstrated, and the performance was found to be comparable to that over the usual metal electrodes. The requirement of transparent electrodes is estimated for displays based on electrowetting machanism, and nanotube films indicate promise for such a type of devices.
Convergence of multipoint flux approximations on quadrilateral grids (2006)

This article presents a convergence analysis of the multipoint flux approximation control volume method, MPFA, in two space dimensions. The MPFA version discussed here is the so-called O-method on general quadrilateral grids. The discretization is based on local mappings onto a reference square. The key ingredient in the analysis is an equivalence between the MPFA method and a mixed finite element method, using a specific numerical quadrature, such that the analysis of the MPFA method can be done in a finite element setting. © 2006 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq, 2006
Automated Affinity Capture−Release of Biotin-Containing Conjugates Using a Lab-on-Valve Apparatus Coupled to UV/Visible and Electrospray Ionization Mass Spectrometry (2002)

We report a new method for automated affinity capture and release of biotin-containing conjugates on immobilized streptavidin using a lab-on-valve (LOV) bead injection apparatus. The apparatus is also coupled to UV/visible and electrospray ionization mass spectrometry (ESI-MS) for monitoring the captured and released biotin-containing conjugates. Dissociation rate constants for release from streptavidin of two chromophore-tagged biotin conjugates were measured by UV/visible spectrometry and the dissociation was simultaneously monitored by ESI-MS. The LOV-ESI-MS instrument was also used for repetitive assays of lysosomal beta-galactosidase in human cell homogenates. Fast analysis in 4.5 min/full cycle and robust operation in 60 repetitive analyses are demonstrated that are promising for transfer of the LOV-ESI-MS technology into clinical practice.
Dedicated-microprocessor scheme for thyristor phase control of multiphase convertors (1981)

A general-purpose dedicated-microprocessor firing controller scheme is proposed for multiphase thyristor convertors suitable for interfacing with microprocessor-based control systems. It can be described basically as an asynchronous equidistant firing scheme having fast response and including provisions for limit checks and nonlinearity compensation. The hardware and software organisation of an experimental prototype built around the M6800 family of components is elaborated and the performance is verified.
Anaphylatoxins and Terminal Complement Complexes in Pancreatitis (1990)

Complement activation has been proposed as a mediator of remote complications of acute pancreatitis. Thirty-seven patients with acute pancreatitis were studied with respect to the formation of anaphylatoxins (C3a/C3adesArg, C5a/C5adesArg) and terminal complement complexes (TCC) in plasma and ascites fluid. The patients were classified according to Ranson's criteria. Eighteen patients with moderate or severe pancreatitis had higher maximum plasma C3a/C3adesArg and TCC concentrations than 19 patients with mild pancreatitis. During convalescence, the concentrations had returned to normal. High concentrations of C5a/C5adesArg and TCC were also found in ascites and pancreatic cyst fluid, drawn from patients with moderate or severe pancreatitis. As the terminal complement pathway activation is involved in reactive lysis and anaphylatoxins increase vascular permeability, anemia and impaired respiration in these patients may be influenced by complement activation.
Extremum seeking loops with quadratic functions: Estimation and control (2003)

Extremum-seeking (also peak-seeking) controllers are designed to operate at an a priori unknown set-point that extremizes the value of a performance function. Traditional approaches to the problem assume a time-scale separation between the gradient computation and function minimization and the system dynamics. The work here, in contrast, assumes that the performance function can be approximated by a quadratic function with affinite number of parameters. These parameters are estimated on-line and the extremum seeking controller operates based on these estimated values. A significant advantage of a quadratic function is that it allows the peak-seeking control loop to be reduced to a linear system. For such a loop, the wealth of linear system analysis and synthesis tools can be employed. First, the control loop is analysed assuming that the parameters in the function are known ( full information case) and then when the parameters are estimated on line (the partial information case).
Deubiquitinating Enzymes, Cell Proliferation, and Cancer (2006)

This chapter contains sections titled: Introduction Ubiquitination Deubiquitination DUBs, Oncogenes, and Cell Transformation USP6/Tre-2/Tre-17 Unp/Usp4/Usp15 DUBs and NFk B Signalling USP7/HAUSP and p53 USP33/VDU1, USP20/VDU2, and von Hippel – Lindau Disease USP1, Fanconi Anaemia, and DNA Repair DUBs Associated with BRCA1 and BRCA2 The Cytokine-inducible DUB-1/DUB-2/USP17 Family and Regulation of Cell Growth Conclusions and Perspectives References
Crossing experiments in Allium L. section Cepa (1992)

A full diallel was carried out with six diploid species of Allium section Cepa and A. roylei of section Rhizirideum, High isolation barriers were found between the related species A. cepa and A. oschaninii, between A. oschaninii and A. vavilovii, and between A. galanthum and A. pskemense. On the contrary, the species A. cepa and A. roylei, belonging to different sections, show only slight isolation barriers. The Wallace effect, which is the development of internal isolation barriers as such, is likely to have taken place in the evolution of A. oschaninii and A. vavilovii, and possibly also between A. galanthum and A. pskemense.
Separating oil from water (1991)

The technology available to deal with oil spills has assumed many new faces in recent years. Methods of dealing with small-scale pollution in the process industries and vast oil slicks such as that in the Gulf have developed in parallel. The progress being made in finding new means of separating oil from water is reported and the relative merits of bioremediation, hydrocylones, horizontal separators and gas flotation are discussed. (author).