gebhart/patrepeval huggingface dataset:
High-speed, bi-directional dual-core fiber transmission system for high-density, short-reach optical interconnects (2015)

A complete single mode dual-core fiber system for short-reach optical interconnects is fabricated and tested for high-speed data transmission. It includes dual-core fibers capable of bi-directional data transmission, dual-core simplex LC connectors, and fan-outs. The transmission system offers simplified bi-directional traffic engineering with integrated bidirectional transceivers and compact system design, utilizing simplex dual-core LC connectors that use half the space while increasing the bandwidth density by a factor of two. The fiber has two cores that are compatible with single mode fiber and conforms to the industry standard outer diameter of 125 μm. This reduces operational complexity by reducing the size and number of fibers, cables and connectors. Measured OTDR loss for both cores was 0.34 dB/km at 1310 nm and 0.19 dB/km at 1550 nm. Crosstalk for a piece of 5.8 km long dual-core fiber was measured to be below -75 dB at 1310 nm, and below -40 dB at 1550 nm. Both free-space optics fan-outs and tapered-fiber-coupler based MCF fan-outs were evaluated for the transmission system. Error-free and penalty-free 25 Gb/s bi-directional transmission performance was demonstrated for three different fiber lengths, 200 m, 2 km and 10 km, using the complete all-fiber-based system including connectors and fan-outs. This single mode, dual-core fiber transmission system adds complementary value to systems where additional increases in bandwidth density can come from wavelength division multiplexing and multiple bits per symbol.
Low complexity binary description wavelet codec (1999)

This paper presents a new coding algorithm, called the low complexity binary description (LCBiD) wavelet coder, which has an extremely low implementation complexity yet very rich features. LCBiD encodes wavelet coefficients in blocks of fixed size (16,16). Wavelet coefficients of a block are only taken from a single subband. No inter-subband correlation is exploited so that no specific requirement is imposed on how wavelet coefficients are generated. Each block is encoded using binary context-based bitplane coding. A (16,16) block is usually much smaller than a subband, and a block can become significant much later than a subband. A block skipping technique is employed to bypass one layer of zeros if a block is insignificant at the current quantization threshold. In other words, a separate bitstream is generated to describe the significance of blocks. Because much less zeros are encoded, both the coding speed and efficiency are increased greatly. A separate arithmetic coder set is used for each bitplane, and all coders are reset at the beginning of each subband. Thus, each bitplane of every subband in the compressed file can be directly accessed, and decoded almost independently. The only constraint is that all bitplanes of one subband must be decoded in the correct order. In order to reduce the overall number of arithmetic coders, very simple coding contexts are defined. The image codec has a very good coding performance, and the compressed file is quality and resolution scalable, and resilient to transmission errors.
The Potentials of Inserting New Genetic Information (1980)

The concept that new genes can be inserted into living animals is relatively new, but the phenomenon of transmission of genetic material from one organism into the genome of another has probably existed since the early stages of evolution. Mutation of nucleotide sequences in the DNA code has long been seen as the principal mechanism of evolutionary adaptation, while transmission of genetic materials between species was considered to be a rare event. This conventional view requires revision in the light of recent knowledge about genetic elements adapted for shuttling between different regions of a single genome or between different genomes. . . .
Comparison of Bending, Drapability and Crease Recovery Behaviors of Woven Fabrics Produced from Polyester Fibers Having Different Cross-sectional Shapes (2010)

In this paper, full and hollow fibers having round and trilobal cross-sectional shapes were produced in equal manufacturing conditions and bending, drapability and crease recovery behaviors of the woven fabrics produced from these fibers were investigated. The bending rigidities of the fabrics produced from hollow fibers were higher than the bending rigidities of the fabrics produced from full fibers. The highest bending rigidities were obtained in fabrics produced from hollow round fibers. The bending rigidities and drapabilities of the fabrics produced from fibers of similar cross-sectional shapes were in close relation with each other. The fabrics produced from full fibers had higher drapabilities than those produced from hollow fibers. The fabrics produced from full fibers had higher crease recovery angles than those produced from hollow fibers. Considering that the construction properties of the fabrics were kept constant, it could be concluded that the differences among the properties of the fabrics which were produced from full and hollow fibers (for both round and trilobal cross-sectional shapes) basically emerged from the very high differences between moments of inertia of full and hollow cross sections. It was also considered that another factor which caused differences between the fabric properties was the different bulkiness of the fibers and also the different bulkiness of the yarns with the same counts. The best results could be obtained with round and trilobal full fibers at fabrics in which drapability and crease recovery are desired.
State-of-the-art and trends in 3D IC/Si integrations and WLP (2010)

Moore's law has been the most powerful driver for the development of the microelectronic industry. This law emphasizes on lithography scaling and integration (in 2D) of all functions on a single chip, perhaps through system-on-chip (SoC). On the other hand, the integration of all these functions can be achieved through system-in-package (SiP) or, ultimately, 3D IC/Si integration, which is a very complicate subject. It involves component and system designs, FAB, packaging assembly and testing, material suppliers, and equipment suppliers. The key enabling technologies for 3D IC integration are, e.g., electrical, thermal, and mechanical designs and tests, known good die (KGD), TSV (through silicon via) forming and filling, wafer thinning and handling, thin chip strength measurement and improving, lead-free microbump forming and assembly, low temperature C2W and W2W bonding, and thermal management. In this course, all these enabling technologies (except electrical) will be discussed. Most of the materials are based on the technical papers published within the past 3 years by others and the instructor.
Optimality and Robustness in Multi-Robot Path Planning with Temporal Logic Constraints (2013)

In this paper we present a method for automatic planning of optimal paths for a group of robots that satisfy a common high-level mission specification. The motion of each robot is modeled as a weighted transition system, and the mission is given as a linear temporal logic (LTL) formula over a set of propositions satisfied at the regions of the environment. In addition, an optimizing proposition must repeatedly be satisfied. The goal is to minimize a cost function that captures the maximum time between successive satisfactions of the optimizing proposition while guaranteeing that the formula is satisfied. When the robots can follow a given trajectory exactly, our method computes a set of optimal satisfying paths that minimize the cost function and satisfy the LTL formula. However, if the traveling times of the robots are uncertain, then the robots may not be able to follow a given trajectory exactly, possibly violating the LTL formula during deployment. We handle such cases by leveraging the communication capabilities of the robots to guarantee correctness during deployment and provide bounds on the deviation from the optimal values. We implement and experimentally evaluate our method for various persistent surveillance tasks in a road network environment.
Synthesis of high molecular weight ring polystyrenes (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of high molecular weight ring polystyrenesJacques Roovers and P. M. ToporowskiCite this: Macromolecules 1983, 16, 6, 843–849Publication Date (Print):June 1, 1983Publication History Published online1 May 2002Published inissue 1 June 1983https://pubs.acs.org/doi/10.1021/ma00240a002https://doi.org/10.1021/ma00240a002research-articleACS PublicationsRequest reuse permissionsArticle Views1652Altmetric-Citations328LEARN 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
Age- and calorie-independent life span extension from dietary restriction by bacterial deprivation in Caenorhabditis elegans (2008)

Based on these findings, we propose that dietary restriction by bacterial deprivation increases longevity in C. elegans by a combination of reduced food consumption and decreased food sensing.
RECENT DEVELOPMENTS IN THE FIELD OF WINE FLAVOUR RESEARCH* (1982)

Refinements in techniques for removing, separating and identifying flavour components in wines have brought about a tremendous increase in the available knowledge of such components. Im provements in sensory methods, too, are leading to a better understanding of the important flavour characteristics of wines so that the significance of identified components to wine quality can be unravelled. This paper discusses recent developments, both from the analytical and sensory point of view, and draws attention to some of the more flavour significant compounds which have been reported over recent years.
A Plasma Biomarker Panel to Identify Surgically Resectable Early-Stage Pancreatic Cancer (2017)

TFPI/TNC-FN III-C migration signature adds statistically significantly to CA 19-9's predictive power to detect early-stage PDAC and may have clinical utility for early detection of surgically resectable PDAC, as well as for enhanced survival from this routinely lethal cancer.
An improved method of preparing composite poly(dimethylsiloxane) moulds (2005)

Preparing a poly(dimethylsiloxane) (PDMS) mould having a high density pattern with a feature size smaller than 100 nm and an aspect ratio larger than unity has been a challenge yet to be met. A method is presented that permits preparation of such a PDMS mould. Lowering the viscosity of PDMS prepolymer mixture and enhancing the wettability by introducing a properly chosen solvent to the mixture, coupled with the use of an excessive amount of modulator to delay cross-linking, is the key to successfully preparing the mould. While the method is shown to be effective for dense patterns down to 40 nm feature size with an aspect ratio of 1.5, it might also prove to be effective for smaller feature sizes.
EMI reduction in wireless power transfer system using spread spectrum frequency dithering (2016)

This paper presents the use of spread spectrum technique to reduce electromagnetic interference caused by fast switching transitions of a resonant inverter and rectifier used for wireless power transfer (WPT) systems. We investigate the magnetic field emission from a series-resonant WPT system having the resonance frequency of 20 kHz in a frequency band from 9 kHz to 150 kHz. The averaging spectral estimate (Welch's Periodogram) of the simulated leakage magnetic field shows that a harmonic peak can be reduced up to 8.7 dB by dithering the switching frequency with a triangular modulation profile.
Restoring motor control and sensory feedback in people with upper extremity amputations using arrays of 96 microelectrodes implanted in the median and ulnar nerves (2016)

This study demonstrated that an array of 96 microelectrodes can be implanted into the human peripheral nervous system for up to 1 month durations. Such an array could provide intuitive control of a virtual prosthetic hand with broad sensory feedback.
Synthesis of novel nucleosides. (1989)

A new spironucleoside structural type and two new bicyclic nucleoside structural types were synthesized from the reaction of ribose nitrile oxide with dimethyl acetylenedicarboxylate. Next, a synthetic method for novel meso-ionic nucleoside structual type is presented.
Design and operation of a 700 kV arbitrary waveform generator (2009)

The control of voltage in an arbitrary manner has lead to fundamental advances in fields which range from music to lasers. Such generators have traditionally been limited to a maximum voltage of 10 V. We have conceived, developed, tested and operated an arbitrary waveform generator with a range of voltages up to 720 kV. These devices have a wide variety of applicability. They are effective, high capability devices for simple square wave generation, and they also allow for a remarkable range of waveforms to be produced. The generators we have built are similar in some ways to solid state Marx generators, but with a novel charging system. The topology - but not the charging system - is also similar to the type of device described by Swanson in US Patent 4,403,197. The topology consists of a set of pulse generators arrayed in series where each pulse generator has a shunt diode. Each of the subunits can be on or off. We array the subunits in series. If M units are on at a voltage V we have voltage MV. We vary M in order to make an arbitrary voltage. The stages are truly independent, so the voltage of an individual stage device never increases due to the action of the other devices. This is in contrast to the action of switching in a series IGBT stack where one slow device will be subjected to N times its rated voltage. The main problem is to charge the stage capacitances C1...CN. We have developed a novel means of charging the stages using air core magnetic flux. We place the stages inside rings which have secondary coils on them. We arrange outside the rings - and with adequate spacing - to have a primary coil which provides a time varying axial magnetic field. The individual stages are charged with voltage multipliers connected to secondaries coupled to the magnetic field. In this paper we describe successful construction and operation of one of these devices up to 720 kV.
SPIDER: simultaneous post-layout IR-drop and metal density enhancement with redundant fill (2005)

This paper presents SPIDER, a novel methodology that advantageously utilizes metal fill to simultaneously fulfil metal density requirements and reduce IR-drop of the power distribution network. This is achieved through the addition of partially redundant connections between metal fills and power meshes. Our technique is especially significant for 90nm process technology or below because (1) metal fill must now be done as part of the IC implementation flow due to its increasing impact on timing, (2) the tolerance for IR drop is tightening due to voltage scaling, and the increasingly conservative power mesh design to address IR-drop is adding significant burden on the available routing resources, (3) IR-drop is getting worse due to increasing design sizes, and (4) the large degree of design uncertainty demands IRdrop repair capabilities that can be applied after routing is completed. SPIDER addresses all these issues practically with little or no cost. Experimental results further demonstrated the robustness and effectiveness of our approach: SPIDER achieves an average IR-drop reduction of 62.2% in 16 designs of various sizes.
Adrenoleukodystrophy: evidence for X linkage, inactivation, and selection favoring the mutant allele in heterozygous cells. (1981)

Skin fibroblasts of human males affected with adrenoleukodystrophy (ALD) have previously been shown to be abnormal with respect to C26 fatty acid content. Skin fibroblast clones from heterozygotes in three families segregating this mutation have been analyzed and are of two types: clones with normal ratios of C26 to C22 fatty acids and clones with an excess of C26 fatty acids similar to that found in cells of affected males. This indicates not only that the locus is X linked but also that it is subject to inactivation. In most of the heterozygotes there were significantly more clones of abnormal type than those expressing the normal allele, indicating a proliferative advantage in vitro for skin fibroblasts of mutant type. The increased levels of fatty acids in plasma in most heterozygotes and the phenotype of blood cells of women heterozygous for both ALD and glucose-6-phosphate dehydrogenase (G6PD) in one family are evidence that selection favoring the mutant allele may occur in vivo as well as in vitro and may explain why many heterozygotes manifest clinical symptoms of the disease. These studies have also revealed the close linkage between ALD and G6PD loci, because there are no recombinants among 18 informative offspring of doubly heterozygous mothers. Therefore, the ALD locus can be mapped on the human X chromosome near the G6PD locus at Xq28.
Facial Dermal Fillers: Selection of Appropriate Products and Techniques (2008)

Over the last decade, there has been a shift in the way aesthetic surgeons approach facial rejuvenation. With recognition of the value of volume enhancement in achieving a more youthful appearance, as well as the ease of office procedures offering minimal downtime and predictable results, there has been a concomitant explosion in the soft tissue filler market. Given the vast array of filler products currently available, the decision of which facial filler to use in specific situations can be complicated and confusing. A physician's selection of facial filler(s) should be based on a solid understanding of the various filler products, appropriate patient selection, and the physician's proficiency in injection techniques. We present a review of the most widely used fillers, offering guidance on patient selection and effective injection techniques.
A Position-Based Visual Impedance Control for Robot Manipulators (2007)

In this paper, an approach to interaction control of a robot manipulator with a partially known environment is proposed. The environment is a rigid object of known geometry but of unknown and possibly time-varying position and orientation. An algorithm for online estimation of the object pose is adopted, based on visual data provided by a camera as well as on forces and moments measured during the interaction with the environment. This algorithm is embedded into an impedance control scheme, resulting in a position-based visual impedance control. Experimental results are presented for the case of an industrial robot manipulator in contact with a planar surface.
Expression of Matrix Metalloproteinases and Their Inhibitors in Human Trabecular Meshwork Cells (2003)

The expression of the different MMPs and TIMPs in human TM cells was independently regulated. Production of MMP-3 was maximally activated by IL-1alpha. The IL-1alpha-stimulated expression of MMP-3 provides a probable mechanism for IL-1alpha-enhanced aqueous outflow.
The <i>all-trans</i> -retinal dimer series of lipofuscin pigments in retinal pigment epithelial cells in a recessive Stargardt disease model (2007)

The bis-retinoid pigments that accumulate in retinal pigment epithelial cells as lipofuscin are associated with inherited and age-related retinal disease. In addition to A2E and related cis isomers, we previously showed that condensation of two molecules of all-trans-retinal leads to the formation of a protonated Schiff base conjugate, all-trans-retinal dimer-phosphatidylethanolamine. Here we report the characterization of the related pigments, all-trans-retinal dimer-ethanolamine and unconjugated all-trans-retinal dimer, in human and mouse retinal pigment epithelium. In eyecups of Abcr(-/-) mice, a model of recessive Stargardt macular degeneration, all-trans-retinal dimer-phosphatidylethanolamine was increased relative to wild type and was more abundant than A2E. Total pigment of the all-trans-retinal dimer series (sum of all-trans-retinal dimer-phosphatidylethanolamine, all-trans-retinal dimer-ethanolamine, and all-trans-retinal dimer) increased with age in Abcr(-/-) mice and was modulated by amino acid variants in Rpe65. In in vitro assays, enzyme-mediated hydrolysis of all-trans-retinal dimer-phosphatidylethanolamine generated all-trans-retinal dimer-ethanolamine, and protonation/deprotonation of the Schiff base nitrogen of all-trans-retinal dimer-ethanolamine was pH-dependent. Unconjugated all-trans-retinal dimer was a more efficient generator of singlet oxygen than A2E, and the all-trans-retinal dimer series was more reactive with singlet oxygen than was A2E. By analyzing chromatographic properties and UV-visible spectra together with mass spectrometry, mono- and bis-oxygenated all-trans-retinal dimer photoproducts were detected in Abcr(-/-) mice. The latter findings are significant to an understanding of the adverse effects of retinal pigment epithelial cell lipofuscin.
<b>The Plant Sulfolipid. VI. Configuration of the Glycerol Moiety</b> (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Plant Sulfolipid. VI. Configuration of the Glycerol MoietyM. Miyano and A. A. BensonCite this: J. Am. Chem. Soc. 1962, 84, 1, 57–59Publication Date (Print):January 1, 1962Publication History Published online1 May 2002Published inissue 1 January 1962https://pubs.acs.org/doi/10.1021/ja00860a014https://doi.org/10.1021/ja00860a014research-articleACS PublicationsRequest reuse permissionsArticle Views74Altmetric-Citations24LEARN 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
SYNTHESIS OF POLYSULFIDES, SULFOXIDES AND SULFONES CONTAINING REACTIVE GROUPS (1993)

Abstract Preparation of polysulfides, sulfoxides and sulfones (containing reactive groups: OH, Cl, COOR, CN SO3Na) are presented; 13C chemical shifts of these compounds have been recorded.