gebhart/patrepeval huggingface dataset:
COMPOSITIONAL AND PHYSICAL PROPERTIES OF ASPHALT FRACTIONS OBTAINED BY SUPERCRITICAL AND SOLVENT EXTRACTION. IN: AMERICAN CHEMICAL SOCIETY SYMPOSIUM ON CHEMISTRY AND CHARACTERIZATION OF ASPHALTS, AUGUST 1990, WASHINGTON, D.C. (1992)

Supercritical extraction with n-pentane was used to separate asphalt into distinct fractions having different physical and compositional properties. A pilot-scale supercritical unit capable of processing thirty kilograms of asphalt per day was designed and fabricated specifically for asphalt fractionation. The operation and design of the unit is similar to the ROSE (Residuum Oil Supercritical Extraction) process of Kerr-McGee. This unit was used to separate asphalt into five different fractions ranging from soft greases to asphaltene-like solids. Supplemental room-temperature solvent fractionation of the hardest of these five using binary pentane/cyclohexane mixtures produces a total of eight fractions. A variety of analyses provide chemical and physical characterization of the fractions. These include: (1) Corbett Fractionation, (2) FT-IR spectroscopy, (3) size exclusion chromatography, (4) nickel and vanadium atomic absorption, and (5) viscosity.
Biomechanical analysis in ladder climbing: the effect of slant angle and climbing speed. (1994)

This paper presents the findings of a study conducted to determine the peak forces generated in the articulated joints and the foot/floor contact point of a ladder while an individual was engaged in ladder climbing. A kinematic description of joint movements and the calculation of forces acting on each body segment as well as the foot of the ladder were obtained on the basis of videographic data. Task variations were (1) slant angle (70 degrees and 75 degrees with the horizontal) and (2) climbing speed (86 steps/min and 106 steps/min). It was identified in this study that the ladder's friction forces had a time variant nature as a result of biodynamic movements. There were two peak friction coefficients, in opposite directions, occurring at 7% and 38% of each half of the strike time. The primary differences between climbing the ladders at 70 and 75 degrees were a greater posterior displacement of the body's center gravity and smaller peak center gravity shearing forces in climbing the 75 degree ladder. There were greater posterior displacement of the center gravity of body and a larger biomechanical load while climbing at 106 steps/min than at 86 steps/min.
PERFORMANCE VERIFICATION OF A CONCRETE PIPE (1995)

Based on load cell tests and predicted results from SIDD, the following conclusions can be drawn: (1) before formation of cracks, moments were well correlated by SIDD; (2) thrusts measured during load cell tests were consistent with SIDD capabilities only for low surface pressures; (3) cracks formed in locations of maximum moment which were predicted by SIDD; (4) after formation of cracks in the concrete pipe, moment and thrust were not comparable to SIDD results; (5) crown pressure measured at failure was approximately twice the magnitude recorded at initial cracking.
Optical properties of perylene films in the visible and near uv* (1973)

Ellipsometric measurements of the refractive index and absorption coefficient of vacuum-evaporated perylene films are reported for the wavelength range 0.35 μm ≤ λ ≤ 0.7 μm. An independent determination of refractive index at one wavelength by a critical-angle measurement allows calculation of both optical constants as well as the film thickness from the ellipsometer data. The principal features of the wavelength dependence of the film absorption are a broad maximum around 0.5 μm, a weak peak from 0.41 − 0.45 μm, and a strong edge at 0.375 μm. Each of these features corresponds to a peak in the crystal absorption spectrum measured by Hochstrasser.
Sulfonated multiblock copoly(ether sulfone)s as membrane materials for fuel cell applications (2004)

Abstract Arylene ether multiblock copolymers of the (AB) n ‐type with various degrees of sulfonation have been prepared by a two‐step polycondensation procedure. Multiblock copolymers in high yields and of high molecular weights were obtained. For comparison random copolymers with the same overall composition were synthesized. The theoretical ion‐exchange capacities (IEC) of the materials were ranging from 0.50 mmol/g to 1.25 mmol/g. The water‐uptake of the multiblock copolymers showed a linear dependency from the IEC and was increasing with increasing IEC. No differences were observed between random and block copolymers. Furthermore, the hydrolytic stability of aromatic sulfonic acid groups was investigated in this study. Aromatic sulfonic acids, having additional electron donating groups, especially in ortho‐ or para‐position to the sulfonic acid group are sensitive to hydrolytic desulfonation. On the other hand electron‐withdrawing groups in meta‐position showed a stabilizing effect.
Clinical Efficacy of the Pulsed Dye Laser in the Treatment of Vascular Lesions (1993)

Based on many thousands of treatment sessions and follow-up evaluation, the pulsed dye laser appears to have the greatest margin of safety in the treatment of cutaneous vascular lesions, especially for the pediatric population.
A SpaceFibre multi lane codec System on a Chip: enabling technology for low cost satellite EGSE (2018)

In the last few years, data rate requirement on on-board satellite communication systems significantly grown. The need of high speed networks led to the birth of the SpaceFibre protocol, which is able to run at several Gigabit per second and operates over both optical fibre and copper cables. A key feature of SpaceFibre is the possibility to have multi lane link, which increases the overall achievable data rate and link reliability. The growing complexity of satellite payload communication systems requires the definition an accurate monitoring and testing system. In this paper a multi lane SpaceFibre interface integrated in a System on a Chip is presented as enabling technology for an electrical ground segment equipment.
Abrasion Resistant Coating and Method of making the same (1999)

An abrasion resistant coating is created by adding a ductile phase to a brittle matrix phase during spray coating where an Al--Cu--Fe quasicrystalline phase (brittle matrix) and an FeAl intermetallic (ductile phase) are combined. This composite coating produces a coating mostly of quasicrystal phase and an inter-splat layer of the FeAl phase to help reduce porosity and cracking within the coating. Coatings are prepared by plasma spraying unblended and blended quasicrystal and intermetallic powders. The blended powders contain 1, 5, 10 and 20 volume percent of the intermetallic powders. The unblended powders are either 100 volume percent quasicrystalline or 100 volume percent intermetallic; these unblended powders were studied for comparison to the others. Sufficient ductile phase should be added to the brittle matrix to transform abrasive wear mode from brittle fracture to plastic deformation, while at the same time the hardness of the composite should not be reduced below that of the original brittle phase material.
A XML-supported database for landslides and engineered slopes related to China's water resources development (2008)

XML supports the data exchange between databases on web; it can provide the network share of the database of slope login using XML. This chapter introduces the work of establishing the web database for landslides and engineered slopes using the XML technology. China is bestowed with abundant water energy resources, ranking at the first in the world in terms of hydropower. Stability of high slopes is an extremely prominent problem when developing these power stations. According to the slope property, the water conservation and hydropower engineered slope can be divided into three kinds: excavation slopes, reservoir slopes and the river bank slopes. XML has many advantages in database application. First, Cross platform. XML file is text-based file, not only restricted to OS and software plat. Second, it is simple and straight-forward. The generalized XML technology can realize the data transfer cross platforms. It has simple readable and extensible characters.
Dynamic Aggregation of Chiral Spinners (2002)

An object spinning at the surface of a liquid creates a chiral vortex. If the spinning object is itself chiral, its shape modifies the characteristics of the vortex; interactions between that vortex and other vortices then depend on the chirality of the objects that produce them. This paper describes the aggregation of millimeter-sized, chiral magnetized plates floating at a liquid-air interface and rotating under the influence of a rotating external magnetic field. This external field confines all the plates at densities that cause the vortices they generate to interact strongly. For one set of plates investigated, plates of one chirality attract one another, and plates of the other chirality repel other plates of both chiralities.
Signal to noise ratio in simulations of time-of-flight positron emission tomography (2005)

Time-of-flight (TOF) positron emission tomography (PET) can improve signal-to-noise ratio (SNR) relative to conventional PET by improving coincidence localization and reducing random coincidences. Several time-of-flight positron emission tomographs were developed in the 1980s and early 1990s. However, interest in time-of-flight waned because of the low stopping power and light yield of the scintillators available at that time. Now newly discovered scintillators with greater light yield and/or stopping power, along with advances in photomultiplier tubes and electronics, are rekindling interest in TOF. To facilitate investigations into the utility of TOF, we have modified the SimSET simulation to track and bin TOF differences between coincidence photons. Images were reconstructed from simulated data using confidence-weighted backprojection and filtered backprojection. These images were used to investigate the effect of TOF on SNR. SNR improves dramatically with improved TOF resolution. However, the improvement is somewhat less than that predicted by a widely used theoretical model
Determining kinetic parameters from pulse voltammetric data (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermining kinetic parameters from pulse voltammetric dataJohn O'Dea, Janet Osteryoung, and Thomas LaneCite this: J. Phys. Chem. 1986, 90, 12, 2761–2764Publication Date (Print):June 1, 1986Publication History Published online1 May 2002Published inissue 1 June 1986https://pubs.acs.org/doi/10.1021/j100403a040https://doi.org/10.1021/j100403a040research-articleACS PublicationsRequest reuse permissionsArticle Views326Altmetric-Citations66LEARN 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 InRedditEmail Other access options Get e-Alerts
(Invited) Synchrotron White-Beam X-Ray Topography Analysis of the Defect Structure of HVPE-GaN Substrates (2015)

The defect structure of HVPE-GaN crystals are examined using synchrotron white-beam X-ray topography (SWXRT) and topography results are interpreted and discussed in comparison to reciprocal lattice point broadening from high resolution X-ray diffraction (HRXRD) measurements. Two as-received commercial HVPE-GaN wafers from two different vendors and one HVPE-GaN which was grown on an ammonothermal GaN-seed are investigated in this study. From large-area topography the formation of a cellular defect network is identified for the commercial HVPE-GaN. Large differences in the crystal lattice misorientation deformation (mosaicity) are determined for the different samples by transmission section topography. For the HVPE-GaN grown on an ammonothermal GaN-seed a very low defect density was ascertained. From the contrasts of the topography threading screw-type dislocations and threading mixed-type dislocations were identified. The structure analyses show that the outstanding structural properties of the ammonothermal GaN-seed are adopted by the HVPE-GaN.
Selection of antigen-specific, idiotype-positive B cells in transgenic mice expressing a rearranged M167-mu heavy chain gene. (1991)

Flow cytometric analysis of antigen-specific, idiotype-positive (id+), B cell development in transgenic mice expressing a rearranged M167-mu gene shows that large numbers of phosphocholine (PC)-specific, M167-id+ B cells develop in the spleen and bone marrow of these mice. Random rearrangement of endogenous V kappa genes, in the absence of a subsequent receptor-driven selection, should give rise to equal numbers of T15- and M167-id+ B cells. The observed 100-500-fold amplification of M167-id+ B cells expressing an endogenous encoded V kappa 24]kappa 5 light chain in association with the M167 VH1-id transgene product appears to be an antigen driven, receptor-mediated process, since no amplification of non-PC-binding M167 VH1/V kappa 22, T15-id+ B cells occurs in these mu-only transgenic mice. The selection and amplification of antigen-specific, M167-id+ B cells requires surface expression of the mu transgene product; thus, no enhancement of M167-id+ B cells occurs in the M167 mu delta mem-transgenic mice, which cannot insert the mu transgene product into the B cell membrane. Surprisingly, no selection of PC-specific B cells occurs in M167-kappa-transgenic mice although large numbers of B cells expressing a crossreactive M167-id are present in the spleen and bone marrow of these mice. The failure to develop detectable numbers of M167-id+, PC-specific B cells in M167-kappa-transgenic mice may be due to a very low frequency of M167-VH-region formation during endogenous rearrangement of VH1 to D-JH segments. The somatic generation of the M167 version of a rearranged VH1 gene may occur in less than one of every 10(5) bone marrow B cells, and a 500-fold amplification of this M167-Id+ B cell would not be detectable by flow cytometry even though the anti-PC antibody produced by these B cells is detectable in the serum of M167-kappa-transgenic mice after immunization with PC.
Tractable locomotion planning for RoboSimian (2015)

This paper investigates practical solutions for low-bandwidth, teleoperated mobility for RoboSimian in complex environments. Locomotion planning for this robot is challenging due to kinematic redundancy. We present an end-to-end planning method that exploits a reduced-dimension rapidly-exploring random tree search, constraining a subset of limbs to an inverse kinematics table. Then, we evaluate the performance of this approach through simulations in randomized environments and in the style of the Defense Advanced Research Projects Agency Robotics Challenges terrain both in simulation and with hardware. We also illustrate the importance of allowing for significant body motion during swing leg motions on extreme terrain and quantify the trade-offs between computation time and execution time, subject to velocity and acceleration limits of the joints. These results lead us to hypothesize that appropriate statistical “investment” of parallel computing resources between competing formulations or flavors of random planning algorithms can improve motion planning performance significantly. Motivated by the need to improve the speed of limbed mobility for the Defense Advanced Research Projects Agency Robotics Challenge, we introduce one formulation of this resource allocation problem as a toy example and discuss advantages and implications of such trajectory planning for tractable locomotion on complex terrain.
[Submucosal injection of lipiodol-bleomycin in esophageal cancer]. (1989)

Submucosal injection of Lipiodol-bleomycin (BLM) for esophageal cancer is complementary to CT scan in preoperative determination of the depth of the cancerous invasion in the esophageal wall. This procedure was performed not only for diagnosis but also as a preoperative therapy in 109 cases with esophageal cancer in Hiroshima University Hospital. The Lipiodol-BLM suspension was prepared by mixing 45 mg BLM and 5 ml Lipiodol on a clean bench. The mixture was usually injected into the submucosal layer of the esophagus using fiberscopy 12 days before the operation. BLM concentration was measured in the primary tumor, normal esophageal tissue around the tumor and regional lymph nodes in the specimen in 14 cases. As a result, a low level of BLM had been maintained in these tissues for a long time. The concentration of the primary tumor was 4 times higher than that of the normal esophageal tissue. In order to predict the side effects of BLM, such as pulmonary fibrosis, the change in serum BLM level was measured in 12 cases. Serum BLM decreased to an unmeasurable level 24 hours after the injection. Thus, the submucosal injection of lipiodol-BLM for esophageal cancer seems to be promising for a targeting cancer chemotherapy.
Transient Response of Semiconductor Electronics to Ionizing Radiation. Recent Developments in Charge-Collection Measurement (2007)

Recent measurements of heavy-ion-induced charge- collection transients are presented. These measurements are possible for the first time because of recent developments in high- bandwidth, single-shot measurement technology, and exhibit several significant advantages over conventional (charge-sensitive preamplifier) charge-collection measurements. Heavy-ion induced transient measurements are presented for InGaAs/InAlAs HEMTs, AlSb/InAs HEMTs, GaAs HFETs and for SOI NMOS devices, and the significant advantages of this approach are described.
Oxaliplatin, irinotecan, bevacizumab followed by docetaxel, bevacizumab in inoperable gastric cancer: First efficacy results of a multicenter phase II trial (AGMT Gastric-3) of the Arbeitsgemeinschaft Medikamentöse Tumortherapie. (2012)

4074 Background: In our previous phase II trials (AGMT-Gastric-1 and AGMT Gastric-2) efficacy of oxaliplatin and irinotecan as well as oxaliplatin, irinotecan and cetuximab was shown. Time to progression however was short suggesting acquired chemotherapy resistance. Therefore sequential chemotherapy combined with bevacizumab is investigated in the presented trial. Methods: Oxaliplatin 85 mg/m 2 biweekly (q2w) and irinotecan 125 mg/m 2 q2w are administered for the first three months followed by docetaxel 50mg/m2 q2w for three months. Chemotherapy for 6 months is combined with bevacizumab 5 mg/kg q2w which is administered until progression. For this abstract 36 patients (pt.) with histologically proven unresectable and/or metastatic gastric adenocarcinoma have been evaluated in a first line setting. Median age: 62.5 years (range 26-80 years), PS 0: 25 patients, PS 1: 10 patients, missing: 1 patient, single metastatic site: 24 patients, multiple metastases: 10 patients, missing: 2. Results: Frequently reported adverse events (more than 20% of pt.) were predominantly grade 1 or 2 and included diarrhea (25/36, 69%), polyneuropathy (17/36, 47%), nausea (17/36, 47%), fatigue (15/36, 42%), neutropenia (13/36, 36%), abdominal pain (11/36, 31%), hypokalemia (9/36, 25%). Grade 3 and 4 toxicities included neutropenia (6/36, 17%), diarrhea (3/36, 8%), hypokalemia (3/36, 8%), anemia in (2/36, 6%), leucopenia (2/36, 6%), thrombocytopenia (1/36, 3%), nausea in (1/36, 3%). Objective response rate after 3 cycles was available in 25 patients: CR 1/25 (4%), PR 14/25 (56%), SD 8/25 (32%), PD 2/25 (8%). After 6 cycles there were 12 evaluable patients with CR 2/12 (16.7%), PR 5/12 (41.7%), SD 4/12 (33.3%) and PD 1/12 (8.3%). Conclusions: The combination of oxaliplatin and irinotecan with bevacizumab followed by docetaxel with bevacizumab is feasible and very active in advanced gastric cancer.
Remoción de plomo en aguas residuales procedentes de actividades mineras mediante la utilización de cáscara de cacao (2018)

The presence of heavy metals in mining wastewater causes significant environmental damage, which is why low cost treatment alternatives are sought, the use of plant material as an adsorbent is an effective and easy to obtain alternative. In the present work, cocoa husk was used as an adsorbent for the removal of lead from wastewater from mining activities, in the water used, the concentration of lead was 17, ppm. We used dry and ground cocoa peel to an approximate size of 1.13 mm, and with a percentage of fiber (lignin and homocellulose) of 98.98 percent, making it effective for the removal of lead. It was determined that the isotherm for the process of adsorbing lead with the cocoa residue corresponds to the following linear model: q same 0.158 by Ceq Subsequently, tests were performed on a fixed bed column with volume of adsorbent material, in which a removal percentage of 98.47 percent was obtained with a 45-minute bed saturation time. The effectiveness of the cocoa husk was verified since important removal values were obtained to be applied to the industry.
One-Step Synthesis of Donor−Acceptor type Conjugated Polymers from Ferrocene-Containing Poly(aryleneethynylene)s (2009)

ADVERTISEMENT RETURN TO ISSUECommunication to the...Communication to the EditorNEXTOne-Step Synthesis of Donor−Acceptor type Conjugated Polymers from Ferrocene-Containing Poly(aryleneethynylene)sTsuyoshi Michinobu*†‡, Hiroe Kumazawa§, Keiichi Noguchi§, and Kiyotaka Shigehara§View Author Information† Global Edge Institute, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8550, Japan‡ PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama, Japan§ Graduate School of Engineering and Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan*Corresponding author. E-mail: [email protected]Cite this: Macromolecules 2009, 42, 16, 5903–5905Publication Date (Web):July 27, 2009Publication History Received21 June 2009Revised18 July 2009Published online27 July 2009Published inissue 25 August 2009https://pubs.acs.org/doi/10.1021/ma9013324https://doi.org/10.1021/ma9013324rapid-communicationACS PublicationsCopyright © 2009 American Chemical SocietyRequest reuse permissionsArticle Views2004Altmetric-Citations73LEARN 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 InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information SUBJECTS:Addition reactions,Monomers,Polymers,Redox reactions,Sandwich compounds Get e-Alerts