gebhart/patrepeval huggingface dataset:
The OPTEL Terminal Development Programme - Enabling Technologies for Future Optical Crosslink Applications (2003)

Contraves Space AG is currently developing with support from ESA the OPTEL family of optical inter- satellite link (O-ISL) terminals for commercial optical satellite crosslinks. The OPTEL family comprises three terminals designed to meet all interesting O-ISL applications ranging from short range links (typically 2,000 km distance) to long range links (up to 80,000 km). The scope of these projects is to develop the technologies needed for the OPTEL terminal best positioned to meet near term market opportunities for commercial O-ISL, and to also bring these technologies together in order to produce a complete O-ISL terminal that can be demonstrated to future customers. The near term market identified by Contraves Space for this technology is for medium range (typically 25,000 km) crosslinks between geostationary communication satellites that carry conventional transparent Ku-band payloads. The member of the OPTEL family that was selected is the OPTEL-25 GEO terminal. The flight design and performance of the OPTEL-25 GEO terminal is to be verified through a two phase test campaign. In the first phase the optical subsystem, pointing and tracking performance are verified through testing of the optical head unit and associated control electronics. Within the second phase a complete OPTEL-25 GEO terminal comprising optical head unit, electronics unit and laser unit are to be tested together with the embedded software needed to operate the terminal. This paper summarises the results achieved within the laser subsystem development. Secondly, the technologies developed within the Contraves programme and the status achieved will be reviewed. The flight design for the OPTEL-25 GEO terminal will be updated based upon the results obtained in the system level tests to demonstrate the feasibility of the flight design with specific attention paid to verifying the low mass, compact design and performance characteristics of the complete terminal.
Abrupt drive pressure variations for probing the extinction threshold mechanism for single-bubble sonoluminescence (1998)

A novel method utilizing abrupt drive pressure amplitude changes has been used to probe transient conditions in single-bubble sonoluminescence (SBSL). This technique has been used to probe the incipient luminescence threshold [Matula and Crum, Phys. Rev. Lett. (submitted)], where it was found that sonoluminescence from air bubbles depend on the time the bubbles spend in the sonoluminescing state. The abrupt pressure change technique has also recently been used to probe SBSL behavior near the extinction threshold. Simultaneous measurements of the radial response and light emission may be used to better understand the mechanism for SBSL extinction.
Crystallographic effects in implantation of oxygen for SIMOX (2002)

In this paper we will discuss aspects of directional or crystallographic effects in implantation of oxygen, with emphasis on the possibility of effects of pinhole formation due to the channeling phenomenon, and application of the intentionally channeled implant to obtain better properties of thin film layers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Direct photolithographic deforming of organomodified siloxane films for micro-optics fabrication (2002)

Direct photolithographic deforming of hybrid glass films is used to fabricate optical structures. The structure is fabricated in polyethylene-oxide-acrylate modified hybrid glass films with (1) binary and gray-scale photomasks using a mercury UV-lamp exposure and (2) maskless UV-laser patterning. Fabrication of isolated lenslets, lens arrays, and gratings is presented, including the associated exposure patterns. The hybrid glass material yields light-induced deformation peak-to-valley (p.v.) heights up to 12.8 microm with mercury UV-lamp exposure and p.v. deformation heights up to 6.8 microm with 365-nm UV-laser exposure. The fabricated lenslets' surface data are presented as Zernike-polynomial fit coefficients. Material synthesis and processing-related aspects are examined to understand and control the material's deformation under exposure. The hybrid glass material exhibits a maximum spectral extinction coefficient of 1.6 x 10(-3) microm(-1) at wavelengths ranging from 450 to 2,200 nm and has a refractive index of 1.52 at 632.8 nm. The fabricated structures exhibit rms surface roughness between 1 and 5 nm.
Are Large-Scale 3D Models Really Necessary for Accurate Visual Localization? (2019)

Accurate visual localization is a key technology for autonomous navigation. 3D structure-based methods employ 3D models of the scene to estimate the full 6 degree-of-freedom (DOF) pose of a camera very accurately. However, constructing (and extending) large-scale 3D models is still a significant challenge. In contrast, 2D image retrieval-based methods only require a database of geo-tagged images, which is trivial to construct and to maintain. They are often considered inaccurate since they only approximate the positions of the cameras. Yet, the exact camera pose can theoretically be recovered when enough relevant database images are retrieved. In this paper, we demonstrate experimentally that large-scale 3D models are not strictly necessary for accurate visual localization. We create reference poses for a large and challenging urban dataset. Using these poses, we show that combining image-based methods with local reconstructions results in a higher pose accuracy compared to state-of-the-art structure-based methods, albeight at higher run-time costs. We show that some of these run-time costs can be alleviated by exploiting known database image poses. Our results suggest that we might want to reconsider the need for large-scale 3D models in favor of more local models, but also that further research is necessary to accelerate the local reconstruction process.
Fabrication of high-strength and high-ductility laminated A2024 aluminum alloy/aluminum composite by severe plastic deformation under high pressure (2017)

In this study, the method of high-pressure torsion (HPT) was applied for grain refinement of A2024/Al composites. Diffusion bonding was carried out at 773 K for 5 h to form the composite in advance. Disk samples with 10 mm diameter and 1 mm thickness were processed by HPT under a pressure of 6 GPa. The chemical composition of the diffusion treated Al layer was determined to Al–2.5%Cu–1.3%Mg by EDS analysis. Microstructural observations revealed that the grain size was refined to ∼180 nm in the thickness center and ∼440 nm in the surface side. Tensile tests showed that the ultimate tensile strength reached 710 MPa with a total elongation of 9%. Extra strengthening was attained by aging at 423 K after HPT processing, leading to an ultimate tensile strength of 760 MPa at the peak-aged condition.
Solistatinol, a Novel Phenolic Compactin Analogue from Penicillium solitum. (2007)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Preclinical Evaluation of a Novel SHIP1 Phosphatase Activator for Inhibition of PI3K Signaling in Malignant B Cells (2019)

Our results using AQX-435 demonstrate that SHIP1 activation may be an effective novel therapeutic strategy for treatment of B-cell neoplasms, alone or in combination with ibrutinib.
Gas-Phase Photofragmentation of Tris(methyl vinyl ketone) Tungsten(0) and the Relationship to Laser-Assisted CVD of Tungsten Oxide Thin Films (2002)

The gas-phase laser-induced photofragmentation of tris(methyl vinyl ketone) tungsten(0) is studied, and the photoproducts are identified by time-of-flight mass spectroscopy. The initially populated excited electronic state of the complex is attributed to metal-to-ligand charge transfer by analysis of the electronic and preresonance Raman spectra. The major metal-containing photofragmentation products are W(+) and WO(+); smaller amounts of WC(+) and W(C(2)H(2))(+) are also observed. Intramolecular ligand coupling occurs, and dimeric products and their fragments are identified. Reaction pathways that explain the observed products are proposed. Thin films on silicon substrates are produced by laser-assisted chemical vapor deposition. The films consist of polycrystalline tungsten oxide with less than 10% tungsten carbide and are characterized by X-ray diffraction, SEM, and Auger electron spectroscopy. Relationships between the composition of the gas-phase photofragments and that of the solid films are discussed.
Predictive Value of Native Computed Tomography in Low Energy Vertebra Fracture Risk Assessment (2016)

Background: Computed tomography (CT) can be used to accurately determine bone density in Hounsfield units (HU), the use of CT as a predictive tool has not been conclusively demonstrated in relation to low energy vertebra compression fracture (VCF).
Acaricidal and insecticidal activities of three synthetic oxazolidinones (1991)

Abstract The effects of three synthetic 2‐oxazolidinones were investigated on two arthropod pests: (1) Boophilus microplus (Canestrinii), the Southern cattle tick; and (2) Cylas formicarius elegantulus (Summer), a sweet potato weevil.
COMPARISON OF PHOTODYNAMIC ACTION BY ROSE BENGAL IN GRAM‐POSITIVE AND GRAM‐NEGATIVE BACTERIA (1988)

Abstract— The photodynamic inactivation by illuminated Rose Bengal of a number of bacterial species was compared. The gram‐positive species, Bacillus subtilis, Staphylococcus aureus, Streptococcus faecalis and Streptococcus salivarius, were inactivated about 200x more quickly (99% inactivation) than a Salmonella typhimurium wildtype strain. The Salmonella inactivation curve exhibited an initial lag time during which bacteria were not significantly inactivated. The lag time for inactivation of a derivative of the wildtype Salmonella strain that is deficient in a large portion of its cell wall lipopolysaccharide coat was approximately half of the lag time for the wildtype strain but the subsequent rate of inactivation was approximately the same for the two strains. Dark preincubation of both Salmonella strains with Rose Bengal before illumination shortened the lag time, but did not increase the final rate of inactivation. Dark preincubation prior to illumination did not measurably change the inactivation curve of the gram‐positive species. The lag time observed in the inactivation curves for Salmonella bacteria may reflect the time required for penetration of the Rose Bengal anion through the outer portion of the gram‐negative cell wall to a critical location within the cell for effective photosensitization.
From the Editor News and Opinions (2004)

The shape of sludge regulation in Europe is undergoing a period of great evolution in which the economical and social implications connected to waste minimization, reuse, and utilization of its material and energy content are also taken into consideration together with the general objective of environmental protection. In this paper the management options for biodegradable wastes, i.e., biological treatments, land application and landfilling, are discussed in relation to the present European legislation in view of its implementation. Activities carried out at European level for the development of standardized testing methods and procedures for sludge characterization are also outlined. ABSTRACT: This review concerns the generation and fate of aerosols generated from the treatment of wastewater, composting plants, and during handling and land application of wastewater and biosolids. Though many aerosol studies have been conducted on composting and wastewater treatment plants, few studies have been conducted on land-applied biosolids. Wastewater treatment and composting plants generate almost a constant source of aerosols during plant operation, but these aerosols tend to be contained within the plants and pose the greatest risk towards the workers themselves. Land application sites; whether wastewater application or biosolids application, are of concern as communities are beginning to interface with rural areas
Synthesis, characterization, crystal structure and DFT study of 1,1-diisopropyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (2022)

1,1-Diisopropyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea was given by two-steps method, then the single crystal was measured by using X-ray diffraction. According to density functional theory (DFT) by using the 6-311 ± G (2d, p) basis set, the optimized structure of the molecule was calculated with the B3LYP method, then the calculated value was compared with the value of X-ray diffraction. The analysis of optimized conformation by DFT indicated that the crystal structure was consistent with single crystal by X-ray diffraction. Finally, DFT was used to study the molecular electrostatic potential and frontier molecular orbitals of the title compound, which revealed its physicochemical properties.
ChemInform Abstract: Radical Translocation Reactions Across Amides. 1,5‐Hydrogen‐Transfer Reactions of o‐Iodobenzamides and N‐(o‐Iodobenzyl) Amides. (1994)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Del1 Knockout Mice Developed More Severe Osteoarthritis Associated with Increased Susceptibility of Chondrocytes to Apoptosis (2016)

Osteoarthritis is among the most prevalent diseases worldwide and increasing in incidence as our population ages. Initiation begins with an injury resulting in the release of inflammatory mediators. Excessive production of inflammatory mediators results in apoptosis of chondrocytes. Because of the limited ability of chondrocytes to regenerate, articular cartilage deteriorates leading to the clinical symptoms including severe pain and decreased mobility. No treatments effectively block the progression of OA. We propose that direct modulation of chondrocyte apoptosis is a key variable in the etiology of OA, and therapies aimed at preventing this important step represent a new class of regenerative medicine targets.
Immunological crossreaction between alpha-fetoprotein and albumin. (1976)

Alpha-fetoprotein (AFP), a fetal protein associated with certain tumors, and serum albumin did not corssreact immunologically in native form. Unfolding of their polypeptide chains by reduction of the disulfide bonds followed by carboxamidomethylation produced derivatives with immunochemical properties different from those of the native proteins. Precipitating reactions and radioimmunoassays preformed with antibodies to such unfolded derivatives showed strong crossreactions between albumin and AFP. These assays were found to lack species specificity: AFPs and albumins from different species were equally active. Several other proteins unrelated to AFP or albumin did not react or reacted much less in these assays. These results support the conclusions derived from recent sequence data that AFP and albumin are structurally related and have a common ancestral gene.
The Alzheimer's Association external quality control program for cerebrospinal fluid biomarkers (2011)

Measurements of CSF AD biomarkers show large between-laboratory variability, likely caused by factors related to analytical procedures and the analytical kits. Standardization of laboratory procedures and efforts by kit vendors to increase kit performance might lower variability, and will likely increase the usefulness of CSF AD biomarkers.
Geometry optimization for quality factor enhancement in SiC-based lateral overmoded bulk acoustic resonators (2012)

This paper reports on experimentally verified methods to enhance the quality factor (Q) for SiC-based lateral overmoded bulk acoustic-wave resonators (LOBAR) by acting on their geometry. A prototype LOBAR device [1] was previously demonstrated and showed great potentials for enabling very high Q resonators for applications such as low phase noise oscillators and narrowband channellizers by taking advantage of the intrinsic low damping of SiC. However, the demonstrated performances were far from ultimate and the SiC LOBAR design space has not been fully explored. Therefore, an analytical model has been developed to further understand the LOBAR operation and provide guidelines for Q optimization in this work. The designed experiments focus on LOBAR optimization by exploring the effect of structural dimension variations such as the piezoelectric film thickness (250 and 500 nm) used for transducing the SiC into vibration, coverage ratio (ratio of AlN area to SiC ranging 0.5-2.5%), and aspect ratio (SiC length to width ratio ranging 6-10) of the resonant cavity on the device Q. Consequently, more than 20% increase in Q (from 4250 to 5378) has been achieved at 1.5 GHz, and over 100% increase in Q (from 1900 to 4296) at 2.3 GHz. Additional experimental data also further confirms validity of the analytical model used to describe the device behavior.
Identification and Characterization of Transition Zones in Tight Carbonates by Downhole Fluid Analysis (2006)

Abstract In tight carbonate reservoirs, several factors make it difficult to estimate reserves in transition zones. In particular, underestimation of reserves sometimes occurs because the formation oil can be more mobile than expected. The measurement of mobility of the different phases throughout the transition zone, which is affected significantly by complex rock heterogeneity, can only be accomplished by selective flow measurements. To use openhole sampling tools for these flow measurements, it is essential to differentiate between water-base mud (WBM) filtrate and connate water thereby avoiding any negative impact on the oil initially in place (OIIP) calculation and on development decisions. In principle, pressure gradients from traditional open-hole point pressure measurements should help define accurate fluid gradients and contacts. However this procedure is inadequate to identify and characterize the transition zones. Supercharging, capillary effects, changing wettability and saturations, and pressure variations from production and/or injection effects all play a role in complicating interpretation of the pressure measurement data. In addition, gauge effects, depth errors, formation thicknesses and fluid density contrasts yield potentially large uncertainties in interpretation of gradient data. Downhole pH measurement, embodied within Downhole Fluid Analysis (DFA) procedure, has dramatically improved the situation. Downhole pH measurements utilizing robust pH dyes, the principle behind Litmus paper, have been successfully utilized in differentiating between WBM filtrate and formation water. The downhole fluid analyzers LFA* and CFA* successfully helped determine the level of the anticipated water cut, oil compositions and gravity, and GOR throughout the transition zone allowing a more reliable estimation of hydrocarbon in place and better well placement and production strategies. This process yields considerable cost savings especially by avoiding expensive production tests.
Synthesis and Characterization of Two New fac‐Tricarbonylrhenium(I) Biscarbene Complexes (2009)

Abstract fac ‐Bromidotricarbonylbis(1,3‐diisopropylimidazoline‐2‐ylidene)rhenium(I) ( 4a ) and fac ‐bromidotricarbonylbis(1,3‐dicyclohexylimidazoline‐2‐ylidene)rhenium(I) ( 4b ) with two coordinated 1,3‐dialkylsubstituted imidazoline‐2‐ylidenes were obtained by deprotonation of the corresponding imidazolium chloride salts. In this reaction two coordinated bromides of the metal precursor [NEt 4 ] 2 [ReBr 3 (CO) 3 ] were substituted by 1,3‐di‐R‐imidazoline‐2‐ylidene (R = i Pr, Cy) ligands to generate two stable rhenium(I) biscarbene complexes that have similar structures, as proven by X‐ray diffraction and DFT calculations.(© Wiley‐VCH Verlag GmbH &amp; Co. KGaA, 69451 Weinheim, Germany, 2009)
Performance Study of P4 Programmable Devices: Flow Scalability and Rule Update Responsiveness (2021)

Networking devices with programmable data planes, such as P4 programmable devices, are gaining more popularity because of the flexibility they provide in describing the packet processing behavior. Despite this attained flexibility, the performance of these devices can be the Achilles' heel in case the desired performance level is not met. To this end, we evaluate the performance of three state-of-the-art P4 devices focusing on the following properties: (i) the device's processing latency as a function of a scaled number of flows; (ii) the device's response time in reaction to control plane commands. The scalability analysis shows that different devices have different limits on the maximum number of flows they can support. On the other hand, the device's response time to control plane commands is found to be in milliseconds, which is three orders of magnitude larger when compared to the measured data plane's packet processing latency.
The genetics of nodal marginal zone lymphoma (2016)

Nodal marginal zone lymphoma (NMZL) is a rare, indolent B-cell tumor that is distinguished from splenic marginal zone lymphoma (SMZL) by the different pattern of dissemination. NMZL still lacks distinct markers and remains orphan of specific cancer gene lesions. By combining whole-exome sequencing, targeted sequencing of tumor-related genes, whole-transcriptome sequencing, and high-resolution single nucleotide polymorphism array analysis, we aimed at disclosing the pathways that are molecularly deregulated in NMZL and we compare the molecular profile of NMZL with that of SMZL. These analyses identified a distinctive pattern of nonsilent somatic lesions in NMZL. In 35 NMZL patients, 41 genes were found recurrently affected in ≥3 (9%) cases, including highly prevalent molecular lesions of MLL2 (also known as KMT2D; 34%), PTPRD (20%), NOTCH2 (20%), and KLF2 (17%). Mutations of PTPRD, a receptor-type protein tyrosine phosphatase regulating cell growth, were enriched in NMZL across mature B-cell tumors, functionally caused the loss of the phosphatase activity of PTPRD, and were associated with cell-cycle transcriptional program deregulation and increased proliferation index in NMZL. Although NMZL shared with SMZL a common mutation profile, NMZL harbored PTPRD lesions that were otherwise absent in SMZL. Collectively, these findings provide new insights into the genetics of NMZL, identify PTPRD lesions as a novel marker for this lymphoma across mature B-cell tumors, and support the distinction of NMZL as an independent clinicopathologic entity within the current lymphoma classification.
Study of non stationary mode flow of an abdominal aortic aneurysm. (2012)

These results on the flow and pressure repartition agreed with those found in the literature (1-6) validating in a first time our model. The next step of the study is the wall shear stress data exploitation.