gebhart/patrepeval huggingface dataset:
CHLORINATION OF METHANE WITH COPPER CHLORIDE MELTS. OXYGEN EQUILIBRIUM PRESSURES AND OXIDE SOLUBILITY IN THE MELT (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCHLORINATION OF METHANE WITH COPPER CHLORIDE MELTS. OXYGEN EQUILIBRIUM PRESSURES AND OXIDE SOLUBILITY IN THE MELTC. M. Fontana, Everett Gorin, G. A. Kidder, and R. M. KinneyCite this: Ind. Eng. Chem. 1952, 44, 2, 369–373Publication Date (Print):February 1, 1952Publication History Published online1 May 2002Published inissue 1 February 1952https://doi.org/10.1021/ie50506a045Request reuse permissionsArticle Views50Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (517 KB) Get e-Alerts
Rotary Drilling US-Khuff Formation with PDC Bits (1999)

Abstract Over the years in the Arabian Gulf Offshore Khuff gas wells have been drilled by turbodrilling technique in both 12 ¼' and 8 ½" hole and proved to be more economical and reliable compared with the application of rotary drilling with roller cone bits. However, bit sticking problems were experienced while the turbine was in the hole in most of the deep Khuff wells, resulting in fishing job or sidetracking operations. A total of fifteen major occasions were quoted, more than half of them took place while making a drill pipe connection. The bit was the sticking point, in view of the facts, that it was possible to circulate and rotate with the turbine. Operating company Adma-Opco's solution to this drilling problems, involved the use of new TSP or PDC bits technology combined with new turbine stabilization and the use of new PDC bits design and features on rotary drilling. The drilling performance that is analyzed in this paper, highlights the following: Use of successful bit design as well as new bit technology and features in combination with turbine and on rotary assembly. Impact of new PDC cutter technologies on bit life and rate of penetration. Torque and vibration with PDC bits. Hydraulic requirements for PDC bits in deep well application. Influence of PDC cutter size on performance when drilling Khuff formation.
An improved laser-schlieren system for the measurement of shock-wave velocity (1974)

An improved laser-schlieren system for the measurement of shock-wave velocities has been developed which employs a single detector. Calibration of multiple detectors has been obviated. The system has been shown to yield, in addition to the shock-wave velocity, additional information on the arrival time of the contact surface. Shock-tube performance is compared to the predictions of Mirels' theories.
Endonucleolytic incision of x-irradiated deoxyribonucleic acid by extracts of Escherichia coli. (1975)

An enconuclease activity that reacts with x-irradiated DNA is present in extracts of E. coli. By using centrifugal methods to monitor the conversion of the supercoiled, circular double-stranded DNA for phage phi-x-174 (replicative form) or PM2 to the relaxed circular form it was possible to quantitate the rate of radiation induced endonuclease-sensitive sites in the DNA. For every single-strand break induced by x-rays under aerobic irradiation conditions, there is approximately one induced site sensitive to this endonuclease activity. Under irradiation conditions (addition OF Potassium iodide) that dramatically reduce rates of single-strand breaks and "alkalilabile" lesions, the number of endonuclease-sensitive sites relative to single-strand breaks increase approximatley 4-fold. This nuclease is present in several strains of E. coli B and K12, including mutants deficient in DNA polymerase I, recombination gene products (rec mutants), ultraviolet light incision enzyme (uvr A mutant), and endonuclease II. It is suggested that this endonuclease may be involved in an excision repair process for damages incurred in DNA by ionizing radiation.
Exploring the anti-leukemic effect of the combination treatment with Valproic acid, Lonidamine and Mycophenolate mofetil in acute myeloid leukemia (2015)

An accumulation of immature myeloid progenitor cells at the expense of normal hematopoietic precursors characterizes the aggressive heterogeneous cancer acute myeloid leukemia (AML). It affects the bone marrow and peripheral blood leading to defects in myeloid cell function. (1) The median age of patients with AML is 67 years and the side effects associated with chemotherapy available today can often not be tolerated by this subgroup of patients. (2) Thus, new alternative therapeutic strategies are needed. Valproic acid (VPA) has shown an anti-leukemic effect in 20% of AML patients. The beneficial effect on survival in the Brown Norwegian Myeloid Leukemia (BNML) syngeneic rat leukemia model when treated with the compound was previously investigated and the phosphoproteomic study revealed differentially expressed proteins following VPA treatment. (3) The expression of hexokinase 1 (HK1) and hypoxanthine phosphoribosyltransferin 1 (HPRT1) was reduced by VPA. These proteins are inhibited by the drugs Lonidamine (LND) and Mycophenolate mofetil (MMF), respectively, (4, 5) and were for that reason explored for their anti-leukemic effect and in combination with VPA to enhance AML patients' responsiveness. The ability of MMF to induce cell growth inhibition in three human AML cell lines was assessed and the cooperation of VPA and LND to reduce cell proliferation by synergism was revealed by WST-1 proliferation based assay, Hoechst 33342 dsDNA staining and Annexin-V/PI flow cytometric analysis. Signaling pathways were investigated by Western blot, and a pilot study in NOD/scid/gamma (NSG) mice was performed for estimating the maximum tolerated dose (MTD) of LND. The combination studies of VPA with LND or MMF are novel in AML. Novel agents are hoped for that they will augment the current chemotherapy available for AML patients to overcome drug resistance pathways, and to eventually improve the outcomes for those patients. The observations made may aid in the identification of targeted treatment with combination therapy for individual AML patients. This thesis demonstrates the use of metabolically interfering drugs for a dose-dependent suppression of human AML cell lines and the subsequent viability assays.
ShadowGC: Cooperative garbage collection with multi-level buffer for performance improvement in NAND flash-based SSDs (2018)

Garbage collection, an essential background activity in NAND flash based SSDs, often introduces large runtime overhead. Recent studies showed that it is beneficial to separate the flash pages that have dirty copies in the write buffers from those that do not. However, the existing schemes exploring this observation have limitations, which prevent them from maximizing the performance improvement. In this paper, we address the above challenge through ShadowGC, a novel GC design that exploits the pages in both host-side and device-side write buffers and adopts different read and write strategies to minimize the GC overhead. When garbage collecting flash pages that have dirty copies in the device-side write buffer, ShadowGC reads data from the write buffer. When garbage collecting flash pages that have dirty copies in the host-side write buffer, ShadowGC moves them to dedicated blocks and speeds up the movement with fast-write operations. Our experimental results show that, on average, ShadowGC reduces the write amplification by 16.2% and the GC latency by 20.5% over the state-of-the-art.
A Wide-Band Directional Coupler for Wave Guide (1946)

The frequency range over which most types of directional couplers will operate is rather limited. This is especially true of wave-guide couplers, since the impedance of the guide changes with frequency. A new type of coupler is described which uses a small loop that responds to both the electric and the magnetic fields. When used in conjunction with a special section of ridge wave guide, it is possible to obtain excellent directional characteristics over a two-to-one frequency range.
3D Virtual Garment Modeling from RGB Images (2019)

We present a novel approach that constructs 3D virtual garment models from photos. Unlike previous methods that require photos of a garment on a human model or a mannequin, our approach can work with various states of the garment: on a model, on a mannequin, or on a flat surface. To construct a complete 3D virtual model, our approach only requires two images as input, one front view and one back view. We first apply a multi-task learning network called JFNet that jointly predicts fashion landmarks and parses a garment image into semantic parts. The predicted landmarks are used for estimating sizing information of the garment. Then, a template garment mesh is deformed based on the sizing information to generate the final 3D model. The semantic parts are utilized for extracting color textures from input images. The results of our approach can be used in various Virtual Reality and Mixed Reality applications.
Four independent beams from a single linear array (1965)

This paper describes an antenna technique which combines the dual-mode operation of a radiating square waveguide transmission line with the attachment of multiple ports to produce an antenna which can generate multiple, independent beams in space. The technique can be used to simultaneously transmit or receive signals through the beams with considerable isolation (>37 dB) between several of the ports. By this technique a single, traveling-wave-operated, linear array was designed to generate four unique beams in space. The beams consisted of two pairs of image beams which were produced by the use of an even coupling function design in the aperture. Measurements made of the array model at <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">X</tex> -band showed good agreement with theory.
RANS-based Aerodynamic Shape Optimization of a Blended-Wing-Body Aircraft (2013)

Peer Reviewed
Dynamic Power-Performance Adaptation of Parallel Computation on Chip Multiprocessors (2006)

Previous proposals for power-aware thread-level parallelism on chip multiprocessors (CMPs) mostly focus on multiprogrammed workloads. Nonetheless, parallel computation of a single application is critical in light of the expanding performance demands of important future workloads. This work addresses the problem of dynamically optimizing power consumption of a parallel application that executes on a many-core CMP under a given performance constraint. The optimization space is two-dimensional, allowing changes in the number of active processors and applying dynamic voltage/frequency scaling. We demonstrate that the particular optimum operating point depends nontrivially on the power-performance characteristics of the CMP, the application's behavior, and the particular performance target. We present simple, low-overhead heuristics for dynamic optimization that significantly cut down on the search effort along both dimensions of the optimization space. In our evaluation of several parallel applications with different performance targets, these heuristics quickly lock on a configuration that yields optimal power savings in virtually all cases.
Investigation of the Amount of Dissolved Iron in Food Cooked in Chinese Iron Pots and Estimation of Daily Iron Intake (1990)

The amount of dissolved iron in food cooked in Chinese iron pots and that in food cooked in aluminum. stainless steel. and clay pots were determined. It was found that the amount of dissolved iron in food cooked in Chinese iron pots was two to five times higher than that in food cooked in the other types of pots. According to the test results, the estimated increase in daily iron intake was about 14.5 mg for adults and 7.4 mg for children when Chinese iron pots were used. (c) 1990 Academic Press. Inc.
Application-specific CAD of VLSI second-order sections (1988)

An application-specific, very-high-level CAD (computer-aided design) tool is presented for producing very-high-throughput IIT (infinite-impulse response) filters. The architecture is a cascade of blocked, pipelined, second-order sections. It is necessary only to specify the word size w, the block size B, and each second-order section's coefficients. Using this information, the CAD tool will generate Celtech intermediate-form files for a filter system that at 10 MHz can process 5B/w million samples/s: the benefits of applying both bit-level array architecture and application-specific CAD to the problem of IIR filtering are illustrated. The resulting CAD system reduces the costs of very-high-throughput IIR filters with respect to design, fabrication, and operation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Interventions for the control of diarrhoeal diseases among young children: prevention of low birth weight. (1985)

The effect of low birth weight (LBW) on diarrhoea morbidity and mortality is analysed and interventions to increase birth weights are reviewed. Birth weight is a major determinant of infant mortality and, in developed countries at least, its effect on neonatal mortality is independent of socioeconomic status. We have located no satisfactory data on LBW as a determinant of diarrhoea mortality or morbidity. The strong association between LBW and mortality, however, makes it likely that there is an association between LBW and diarrhoea mortality in developing countries where diarrhoea is a major cause of infant death. Poor maternal nutrition, certain infections, pre-eclampsia, arduous work after mid-pregnancy, short birth intervals, and teenage pregnancy are likely to be causally associated with LBW in developing countries. Tobacco and alcohol consumption are additional risk factors.Of the interventions examined, maternal food supplementation has been the most studied. If targeted to mothers at nutritional risk, and if the food is consumed in addition to the usual diet, the prevalence of LBW can be expected to be reduced. However, food supplementation can be expensive and the results from carefully supervised feeding trials may be better than those that can be achieved in national programmes. The effect of supplementation with iron, zinc or folate requires further study. If it were possible to intervene in maternal nutrition, health and life-style in a developing country in a way that reduced the prevalence of LBW from around 30% to around 15%, a fall in the infant mortality rate of around 26% would be expected. The fall in infant diarrhoea mortality rate might be similar. The scarce data on relative risk of morbidity by birth weight do not allow any comparable computations for morbidity reductions to be made.This review confirms that whatever its association with diarrhoea, LBW is an important determinant of infant mortality. For the more general goal of reducing infant mortality it is necessary to know more about the nature, etiology, and prevention of LBW in developing countries.
Epigenetic interplay between mouse endogenous retroviruses and host genes (2012)

We have shown that spreading of DNA methylation from ERV copies toward active gene promoters is rare. We provide evidence that genes can be protected from ERV-induced heterochromatin spreading by either blocking the invasion of repressive marks or by spreading euchromatin toward the ERV copy.
A video display system for an automatic cue generator (1997)

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
Multiuser scheduling for MIMO wireless systems (2003)

Significant throughput gains can be leveraged in multiuser wireless systems by taking advantage of the spatial diversity provided by multiple antennas at the transmitter and/or receiver and the multiuser diversity inherent in the system. For delay tolerant data applications, this gain in system throughput can be realized through a scheduling scheme where the resources are allocated to the user experiencing the most favorable channel. In this paper, we investigate scheduling algorithms for the downlink of a multiple input multiple output (MIMO) multiuser wireless system. We propose a novel scheduling scheme that exploits spatial and multiuser diversities available in the channel. We provide numerical results demonstrating that by allowing more bits in the feedback channel, the proposed scheme enjoys significant performance gains over the existing schemes with comparable complexity. Furthermore, compared to schemes requiring perfect channel information at the base station, the proposed scheme has less complexity at the expense of a loss in throughput.
Dietary Intake and Nutritional Treatment in Childhood Crohnʼs Disease (1993)

Dietary intake was assessed in 24 children with active Crohn's disease. Seventeen of the children were sex and height matched with healthy siblings of other patients. The mean energy intake was 1,764 KJ/day (420 kcal/day) lower in patients during relapse than controls (p < 0.05). All 24 children entered a randomised controlled trial of high-dose steroids compared to an elemental diet. The elemental diet was well tolerated orally in most cases; only one patient required nasogastric administration. There was a similar improvement in disease activity and duration of remission in both groups regardless of the site of disease. Subsequent growth velocity was significantly better in the group treated with the elemental diet despite a greater and more sustained increase in energy intake in the group treated with steroids. Reintroduction of specific foods in the elemental diet group initially caused symptoms in three children but were subsequently tolerated. During remission, there was no significant difference in energy intake, but vegetables were consumed significantly less frequently (p < 0.01) and confectionery significantly more frequently (p < 0.05) when patients were compared with their own siblings.
Adaptive bandwidth assignment in a TDM network with hybrid frames (2002)

A multiservice drop/insert TDM (time division multiplexing) network in which hybrid frames are used to carry two basic traffic types (circuit-switched isochronous and packet-switched asynchronous) generated by several users is considered. Each user is assigned a portion of the total available bandwidth, in terms of slots/frame, which is dynamically allocated between the two traffic types at the user premises, by means of a local randomized decision rule. The user's bandwidth shares (capacities) are allocated by a centralized agent, whose goal is to minimize a global cost function that accounts for packet delays and call blocking of the entire process over an infinite time horizon (i.e., in the stochastic steady state). In order to track possible slow variations of the traffic generation parameters, periodic interventions of the central agent are effected. This gives rise to a parametric optimization problem with time-varying constraints, whose specific characterization is discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Mutual information based registration of SAR images (2004)

Interpolation artifacts caused by the discrete nature of digital images and interpolation kernels have been previously reported in the literature for mutual information based image registration. Unfortunately they become pronounced in the case of SAR (synthetic aperture radar) image registration, exacerbated by speckle noise. We analyzed the two widely used interpolation algorithms in image registration, namely bilinear interpolation and partial volume interpolation. According to simulation results, we found that the former algorithm produces an extremely non-smooth metric function, whereas the latter method introduces a spurious global optimum at some position of misalignment, instead of the position of perfect registration, under certain circumstances. To make the mutual information criterion useful for the application of SAR image registration, we proposed two pre-processing steps including speckle reduction and an appropriate selection of the number of bins for histogram construction. Simulation results indicate that, by this effort, interpolation artifacts in the mutual information function can be significantly suppressed, and as a consequence, accurate registration is allowed. In conjunction with the two proposed pre-processing steps, we implemented a multiscale elastic registration algorithm. An example of registering a pair of JERS-1 (L-band, HH-polarization) and RADARSAT (C-band, HH-polarization) images verified the potential of this algorithm.
The excretion of two virulent strains of African swine fever virus by domestic pigs (1970)

Daily observations were made on the excretion of African swine fever (ASF) virus by pigs infected intranasally or by contact. Two strains of virus having mean death times of approximately 3 and 6 days were used, the latter being recently isolated from a warthog.First excretion usually occurred by the nasopharyngeal route, as early as 1 or 2 days before the onset of fever in many cases. The titres of pharyngeal and nasal swabs rose rapidly to reach mean levels of about 10(4)-10(5) HAD 50 at 48-72 hr. following the onset of pyrexia. Virus in the secretions of the conjunctiva or lower urogenital tract appeared later and did not attain such high levels. Faecal and urinary excretion was of relatively little significance, except in slower infections caused by the recent warthog virus.These results are discussed in relation to the known failure of infected pigs to transmit the disease to stallmates during the first 12-24 hr. of pyrexia and also in relation to recent work on the pathogenesis of ASF in domestic swine.
Protein expression during exponential growth in 0.7 M NaCl medium of Saccharomyces cerevisiae (1996)

Saccharomyces cerevisiae exponentially growing in basic or 0.7 M NaCl medium were isotopically labelled with 35S-methionine, followed by protein separation and quantification by two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) combined with computerised image analysis. The electrophoretic separation resolved about 650 proteins of which 13 displayed significant and at least 2-fold changes in rate of synthesis during saline growth. By sequencing of 2D-PAGE resolved proteins, one of the 8 induced spot, p42.9/5.5, was shown to correspond to the full length (containing the N-terminal extension) product of the GPD1 gene encoding the cytoplasmic glycerol 3-phosphate dehydrogenase. The expression of the TDH3 gene, glyceraldehyde 3-phosphate dehydrogenase, and the ENO2 gene, enolase, decreased during growth in NaCl medium, declines hypothesised to have an impact on the flux to glycerol.
Comparison of Intravenous Pamidronate to Standard Therapy for Osteoporosis (2005)

Intravenous pamidronate is a well-tolerated osteoporosis therapy that has an effect on bone density comparable to standard therapy in patients unable to take oral bisphosphonates.