gebhart/patrepeval huggingface dataset:
Motion planning with worker's trajectory prediction for assembly task partner robot (2012)

We have developed a novel assembly task partner robot to support workers in their task. This system, PaDY (in-time Parts/tools Delivery to You robot), delivers parts and tools to a worker by recognizing the worker's behavior in the car production line; thus, improving the efficiency of the work by reducing the worker's physical workload for picking parts and tools. For this purpose, it is necessary to plan the trajectory of the robot before the worker moves to the next location for another assembling task. First a prediction method for the worker's trajectory using a Markov model for a discretized work space into cells is proposed, then motion planning method is proposed using the predicted worker's trajectory and a mixture Gaussian distribution for each area corresponding to each procedure of the work process in the automobile coordinate system. Experimental results illustrate the validity of the proposed motion planning method.
Controlled Aniline Polymerization Strategies for Polyaniline Micro- and Nano Self-Assembling into Practical Electronic Devices (2009)

Electroless polymerization of aniline on platinum is investigated for polyaniline micro- and nanostructuring into practical electronic devices. This type of reaction is adapted to estimate its usefulness in a lithographic process. For practical electronic device fabrication, electroless polymerization of aniline can be used to electrically bridge initially independent platinum electrodes. As this application requires a polyaniline bridge to form over a nonconductive material before an electrical contact is obtained, polyaniline growth using chemical oxidative reaction is investigated on substrates presenting surface-tension contrast patterns.
Regioselective Synthesis of 4- and 7-Alkoxyindoles from 2,3-Dihalophenols:  Application to the Preparation of Indole Inhibitors of Phospholipase A<sub>2</sub> (2007)

An efficient and regioselective synthesis of 4- and 7-alkoxyindoles has been developed from commercially available starting materials such as 3-halophenols and 3-chloroanisole. Directed ortho-metalation followed by two palladium-catalyzed processes, a Sonogashira coupling and a tandem amination/cyclization reaction, allows the synthesis of regiochemically pure 4- and 7-substituted indoles. This strategy has been successfully applied to the preparation of 2-[3-(2-amino-2-oxoacetyl)-1-benzyl-2-ethyl-1H-indol-4-yloxy]acetic acid (LY315920), a known inhibitor of phospholipase A2.
Aqueous RAFT Synthesis of Micelle-Forming Amphiphilic Block Copolymers Containing <i>N</i>-Acryloylvaline. Dual Mode, Temperature/pH Responsiveness, and “Locking” of Micelle Structure through Interpolyelectrolyte Complexation (2007)

Temperature- and pH-responsive, micelle-forming, amphiphilic block copolymers were prepared from N,N-dimethylacrylamide (DMA), N-isopropylacrylamide (NIPAM), and N-acryloylvaline (AVAL) utilizing aqueous reversible addition−fragmentation chain transfer (RAFT) polymerization. A series of block copolymers were synthesized by employing DMA as a macro-chain transfer agent to mediate the statistical copolymerization of NIPAM with AVAL. Structural organization and solution behavior were investigated utilizing dynamic light scattering, two-dimensional NMR spectroscopy, and transmission electron microscopy. It has been demonstrated that the critical micellization temperature for the block polymers can be tuned to range from ≈10 to 36 °C by adjusting the solution pH. Micelles with apparent hydrodynamic diameters from 45 to 86 nm are formed between pH 2 and 5. Above pH 5, a sufficient number of the AVAL units are deprotonated which prevents micellization. The extent of pH and temperature changes on the apparent hydrodynamic diameters have been illustrated via 3-D plots. Significantly, micelles assembled within a specified range of pH and temperature can be “locked” by interpolyelectrolyte complexation of anionic AVAL segments with those of a cationic polymer, in this case a RAFT-generated poly([ar-vinylbenzyl]trimethylammonium chloride) (PVBTAC). When the temperature is lowered to room temperature, the polymeric micelles remain “locked” in their multimeric structures which remain dispersed in water. Addition of 0.3 M NaCl to the aqueous solution results in dissociation of the complexes into the respective water-soluble components.
Persistence of pesticides in river water (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPersistence of pesticides in river waterJames W. Eichelberger and James J. LichtenbergCite this: Environ. Sci. Technol. 1971, 5, 6, 541–544Publication Date (Print):June 1, 1971Publication History Published online1 May 2002Published inissue 1 June 1971https://pubs.acs.org/doi/10.1021/es60053a002https://doi.org/10.1021/es60053a002research-articleACS PublicationsRequest reuse permissionsArticle Views1000Altmetric-Citations160LEARN 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-Alertsclose Get e-Alerts
Microwave photonic photorefractive smart filters (2003)

This paper reviews our past and current work on microwave photonic photorefractive smart filters (MWP-PSFs). These devices rely on the generation of dynamic Bragg gratings inside InP:Fe 1.55-μm photorefractive crystals. First, we concentrate on the applications of MWP-PSFs to optical measurements. We report a 15-pm resolution optical spectrum analyzer without mechanical tuning and a 0.2-nm passive wavelength spaced controller. Secondly, we describe the extension of the MWP-PSF concept to the radio modulation frequency control of fiber-wireless systems. Then, we outline the recent proposal of a wavelength self-tunable single-sideband (WST-SSB) filter in order to compensate for the effects of fiber chromatic dispersion in fiber-radio systems. The performance of the latter device is extensively examined in a fiber-radio 140-Mbit/s data transmission employing binary phase-shift keying modulation at 16 GHz without intermediate frequency. Finally, possible future developments such as the InGaAsP integration of MWP-PSFs and the use of a new photorefractive material are discussed.
Diastereoselective γ-vinyl butyrolactone synthesis viagold catalyzed cyclization of allylic acetate (2009)

An efficient method for the preparation of polysubstituted gamma-vinyl butyrolactones was developed through gold catalyzed highly diastereoselective cyclization of the malonate substituted allylic acetates.
Spotsize converters integrated with deep ridge waveguidestructure (1998)

Spotsize converters (SSCs) that can be integrated with a deep ridge waveguide have been developed. By obtaining low loss coupling of a deep ridge and buried waveguide, an SSC loss of < 2 dB has been realised. The 1 dB-down tolerances in the lateral and vertical directions are increased to ± 2.2 and 2.0 µm, respectively.
Liquid Carry-Over in Gas/Liquid Cylindrical Cyclone Compact Separators (2000)

Summary The liquid carry-over phenomenon in gas-liquid cylindrical cyclone (GLCC©**) compact separators has been studied experimentally and theoretically. Experimental data have been acquired including the operational envelope for liquid carry-over and percent liquid carry-over beyond the operational envelope. The data show that at low gas and high liquid flow rates, under churn flow conditions in the upper part of the cylindrical cyclone, a large amount of liquid can be carried over relatively easily. On the other hand, at high gas and low liquid flow rates, under annular flow conditions, one should exceed the operational envelope significantly in order to have large amount of liquid carry-over. A mechanistic model has been developed for the prediction of the percent liquid carry-over beyond the operational envelope for churn flow conditions. An existing model for the prediction of the operational envelope for liquid carry-over has been extended to high-pressure conditions, including improved models for zero-net liquid flow holdup, droplet region and blowout and critical velocities. Comparisons between the new mechanistic model predictions for percent liquid carry-over with the experimental data, under churn flow conditions, show good agreement. Also, considering the lack of experimental data, the predictions of the operational envelope for liquid carry-over at high-pressure conditions show reasonable trends.
Depolarization coefficients of light in multiply scattering media (2014)

The depolarization coefficients are calculated for multiply scattered linearly and circularly polarized light. For a number of media (aqueous suspension of polystyrene particles, water droplets in air), the calculations are carried out both numerically, with solving the vector radiative transfer equation and analytically, within the polarization mode approximation. In the latter case the depolarization coefficients are expressed explicitly in terms of the scattering and absorption coefficients, and the scattering matrix elements of the medium. The range of applicability of the polarization mode approximation is established. For most practically important cases, this method is shown to provide a satisfactory degree of accuracy. We also find the fundamental values of the depolarization coefficients for a Rayleigh medium.
Characterization study of an aqueous developable photosensitive polyimide on 300-mm wafers (2001)

The advent of 300 mm wafer processing for semiconductor manufacturing has had a great impact on the development of photolithographic materials, equipment and associated processes. At the same time advanced packaging techniques for these semiconductor devices are making strides for smaller, faster and lower cost parts with improved reliability. Photosensitive polyimides are used for passivation stress buffer relief and soft error protection on almost all memory devices such as DRAM as well as final passivation layers for subsequent interconnect bumping operations on most of today's advanced microprocessors. For processing simplicity and total cost of ownership, it is desirable to use an aqueous developable polyimide to maintain compatibility with standard photoresist processes. This study will investigate the feasibility of processing photosensitive polyimides on 300 mm wafers. The performance of a commercially available, positive acting, aqueous developable polyimide is examined at a thickness appropriate for logic devices. A broadband stepper is utilized since polyimides are highly aromatic polymers that strongly absorb UV light below 350 nm. This stepper exposes photosensitive films using mercury vapor spectrum output from 390 nm to 450 nm (g and h-line) and allows rapid exposure of both broadband as well as narrow spectral sensitive films. The system has been optimized for thick photoresists and polyimides and uses a combination of low numerical aperture with maximum wafer level intensity to achieve well formed images in thick films. Process capability for 300 mm wafers is determined by analyzing polyimide film thickness uniformity and critical dimension (CD) control across the wafer. Basic photoresist characterization techniques such as cross sectional SEM analysis, process linearity and process windows are also used to establish lithographic capabilities. The trade-offs for various process capability windows are reviewed to determine the optimum process conditions for different polyimide applications.
Glycogen Synthase Kinase 3β Interacts with and Phosphorylates the Spindle-associated Protein Astrin (2007)

Emerging evidence shows that glycogen synthase kinase 3beta (GSK3beta) is involved in mitotic division and that inhibiting of GSK3beta kinase activity causes defects in spindle microtubule length and chromosome alignment. However, the purpose of GSK3beta involvement in spindle microtubule assembly and accurate chromosome segregation remains obscure. Here, we report that GSK3beta interacts with the spindle-associated protein Astrin both in vitro and in vivo. Additionally, Astrin acts as a substrate for GSK3beta and is phosphorylated at Thr-111, Thr-937 ((S/T)P motif) and Ser-974/Thr-978 ((S/T)XXX(S/T)-p motif; p is a phosphorylatable residue). Inhibition of GSK3beta impairs spindle and kinetochore accumulation of Astrin and spindle formation at mitosis, suggesting that Astrin association with the spindle microtubule and kinetochore may be dependent on phosphorylation by GSK3beta. Conversely, depletion of Astrin by small interfering RNA has no detectable influence on the localization of GSK3beta. Interestingly, in vitro assays demonstrated that Astrin enhances GSK3beta-mediated phosphorylation of other substrates. Moreover, we showed that coexpression of Astrin and GSK3beta differentially increases GSK3beta-mediated Tau phosphorylation on an unprimed site. Collectively, these data indicate that GSK3beta interacts with and phosphorylates the spindle-associated protein Astrin, resulting in targeting Astrin to the spindle microtubules and kinetochores. In turn, the GSK3beta-Astrin complex may also facilitate further physiological and pathological phosphorylation.
Hydraulic of sewerage rainy overflow (1996)

Prikazana je problematika hidraulickog dimenzioniranja hidrotehnicke građevine tipa bocnog preljeva, koji se cesto koristi za razdjeljivanje fekalne od oborinske vode. Kako o ispravnom oblikovanju kisnih preljeva ovisi opterecenje uređaja za prociscavanje i opterecenje prijemnika viskom otpadne vode, sto se lako može izraziti u novcanim jedinicima, nije tesko zakljuciti da im, u okviru projekta razdjeljivanja fekalne od oborinske vode, treba posvetiti izuzetno veliku pažnju, te je naprosto nužno usvojiti ili propisati potrebnu metodologiju njihovog oblikovanja. Numericki model se zasniva na rjesenju diferencijalne jednadžbe nekonzervativnog strujanja u neprizmaticnom kanalu.
In-situ response time testing of platinum resistance thermometers. [PWR] (1977)

Interim results are presented of Research Project 503-3, concerned with in-situ resistance temperature detector (RTD) time response verification. The report covers the theoretical bases, laboratory experimentation, and limited in-plant testing of three prospective methods. Sensors employed in this project represent those which are presently employed in safety-related applications in the field, namely Rosemount models 176KF, 177GY, and 104AFC.
Compact 170-W continuous-wave diode-pumped Nd:YAG rod laser with a cusp-shaped reflector (1995)

Flash-lamp style optical pump cavity techniques for side pumping small-diameter laser rods with large-area stacked diode-laser arrays are applied. With a cusp-shaped reflector as a nonimaging concentrator, the light is coupled from the 4.5 cm × 1 cm emitting surface of a microchannel-cooled 660-W cw stacked array to a 4-mm-diameter Nd:YAG rod. With a rod length of 70 mm, 170-W cw output power is reached with an optical efficiency of 26%. The design is insensitive to mechanical distortions and allows for a compact, rugged, close-coupled arrangement without the need for further coupling optics.
Stark effect at dislocations in silicon for modulation of a 1.5 μm light emitter (2008)

A MOS-LED and a p-n LED emitting based on the dislocation-related luminescence (DRL) at 1.5 micron were already demonstrated by the authors. Here we report recent observation of the Stark effect for the DRL in Si. Namely, a red/blue-shift of the DRL peak positions was observed in electro- and photo-luminescence when the electric field in the pn-LED was increased/lowered. Fitting the experimental data yields a strong characteristic coefficient of 0.0186 meV/(kV/cm)<sup>2</sup>. This effect may allow realization of a novel Si-based emitter and modulator combined in a single device.
Reconfigurable organic light-emitting diodes (2004)

In this article, we report a promising type of reconfigurable OLEDs incorporating a thin carrier-blocking layer as the sacrificial fusing layer. In such devices, the carrier-blocking layer has lower glass transition temperature than neighboring layers. By raising the internal temperature of the device above the transition temperature of the carrier-blocking layer, interdiffusion between organic layers could occur through such layer. As a consequence, neighboring layers are fused and a new path for carrier transport is formed, bypassing the carrier-blocking property and altering the device characteristics. A device that emits blue light as fabricated but can be transformed into a green-emitting one is demonstrated. Such type of devices may be used for color pixels in OLED displays, user-programmable OLED applications, and nonvolatile memory devices.
Facile synthesis of SnO2-embedded carbon nanomaterials via glucose-mediated oxidation of Sn particles (2011)

An unusual oxidative reaction of micron-sized Sn particles to form highly dispersed SnO2 nanoparticles, embedded in a carbon matrix, during hydrothermal treatment in glucose solution is disclosed in this study. The reaction mechanism is proposed to result from the promotion of glucose decomposition by Sn. The work also discloses a green process with a yield of 5∼10-fold higher than the commonly employed hydrothermal process. The embedded SnO2 nanoparticles are electrochemically stable for Li storage during the charging–discharging process, which suggests a promised strategy for the stabilization of Sn-based anode materials for Li-ion batteries. It also implies that the unusual oxidative reaction holds great potential for the synthesis of various nano-sized inorganic oxides embedded in carbon matrices to specific applications.
A Dual-Channel Compass/GPS/GLONASS/Galileo Reconfigurable GNSS Receiver in 65 nm CMOS With On-Chip I/Q Calibration (2012)

A fully integrated dual-channel reconfigurable GNSS receiver supporting Compass/GPS/GLONASS/Galileo systems is implemented in 65 nm CMOS. The receiver incorporates two independent channels to receive dual-frequency signals simultaneously. GNSS signals located at the 1.2 GHz or 1.6 GHz bands are supported, with their bandwidths programmable among 2.2 MHz, 4.2 MHz, 8 MHz, 10 MHz, and 18 MHz. By implementing a flexible frequency plan with a low/zero-IF architecture and reconfigurable analog baseband circuits, only one frequency synthesizer is required to provide the local oscillator (LO) frequency for two channels, thereby avoiding any LO crosstalk. Analog baseband circuits employ operational amplifiers that are capable of power scaling, in order to minimize power consumption across different operating modes. An I/Q mismatch calibration module placed prior to the complex-IF bandpass filter is implemented to improve the image rejection ratio. The receiver achieves a minimum 1.88 dB noise figure, an average 50 dB image rejection ratio, and a 64 dB dynamic range with 1 dB steps of gain-adjustment, with a total power consumption of 31-44 mW. Finally, experimental verification combining both the receiver and a digital baseband shows a positioning result comparable to commercial chips.
Rapid velocity sensor using a static confocal Fabry-Perot and a single frequency argon laser (1971)

The technique of laser anemometry based on direct optical frequency measurement has recently been successfully used to investigate supersonic two phase flow where the time averaged velocity spectrum was recorded. The present work proposes two systems which extend the technique to 'instantaneous' velocity measurement, such a system could be adopted for use in any experimental situation where it is desired to record rapid fluctuations in an optical frequency.
CGI-58/ABHD5 is a coenzyme A-dependent lysophosphatidic acid acyltransferase (2009)

Mutations in human CGI-58/ABHD5 cause Chanarin-Dorfman syndrome (CDS), characterized by excessive storage of triacylglycerol in tissues. CGI-58 is an alpha/beta-hydrolase fold enzyme expressed in all vertebrates. The carboxyl terminus includes a highly conserved consensus sequence (HXXXXD) for acyltransferase activity. Mouse CGI-58 was expressed in Escherichia coli as a fusion protein with two amino terminal 6-histidine tags. Recombinant CGI-58 displayed acyl-CoA-dependent acyltransferase activity to lysophosphatidic acid, but not to other lysophospholipid or neutral glycerolipid acceptors. Production of phosphatidic acid increased with time and increasing concentrations of recombinant CGI-58 and was optimal between pH 7.0 and 8.5. The enzyme showed saturation kinetics with respect to 1-oleoyl-lysophosphatidic acid and oleoyl-CoA and preference for arachidonoyl-CoA and oleoyl-CoA. The enzyme showed slight preference for 1-oleoyl lysophosphatidic acid over 1-palmitoyl, 1-stearoyl, or 1-arachidonoyl lysophosphatidic acid. Recombinant CGI-58 showed intrinsic fluorescence for tryptophan that was quenched by the addition of 1-oleoyl-lysophosphatidic acid, oleoyl-CoA, arachidonoyl-CoA, and palmitoyl-CoA, but not by lysophosphatidyl choline. Expression of CGI-58 in fibroblasts from humans with CDS increased the incorporation of radiolabeled fatty acids released from the lipolysis of stored triacylglycerols into phospholipids. CGI-58 is a CoA-dependent lysophosphatidic acid acyltransferase that channels fatty acids released from the hydrolysis of stored triacylglycerols into phospholipids.
The reaction of pentoses with anthrone (1958)

Research Article| April 01 1958 The reaction of pentoses with anthrone R. W. Bailey R. W. Bailey 1Plant Chemistry Laboratory, D.S.I.R., Palmerston North, New Zealand Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd © 1958 CAMBRIDGE UNIVERSITY PRESS1958 Biochem J (1958) 68 (4): 669–672. https://doi.org/10.1042/bj0680669 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation R. W. Bailey; The reaction of pentoses with anthrone. Biochem J 1 April 1958; 68 (4): 669–672. doi: https://doi.org/10.1042/bj0680669 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1958 CAMBRIDGE UNIVERSITY PRESS1958 Article PDF first page preview Close Modal You do not currently have access to this content.