gebhart/patrepeval huggingface dataset:
Optical coupling analysis of dual-waveguide structure for monolithic integration of photonic devices (2005)

We proposed the dual-waveguide structure (DWS) with spot size converters and demonstrated the monolithic integration of both photodetector (PD) and electroabsorption modulator (EAM) based on the DWS. The coupling loss between the device facet and a lensed fiber was as small as 2.13 dB. The responsivity of PD and the extinction ratio of EAM were 0.58 A/W and 20 dB at -4 V/sub dc/, respectively. From the optical coupling analysis, it was proved that the dual-waveguide scheme provided one of the best solutions for the monolithic integration of optoelectronic devices.
Prognostics of Power Electronics, methods and validation experiments (2012)

Failure of electronic devices is a concern for future electric aircrafts that will see an increase of electronics to drive and control safety-critical equipment throughout the aircraft. As a result, investigation of precursors to failure in electronics and prediction of remaining life of electronic components is of key importance. DC-DC power converters are power electronics systems employed typically as sourcing elements for avionics equipment. Current research efforts in prognostics for these power systems focuses on the identification of failure mechanisms and the development of accelerated aging methodologies and systems to accelerate the aging process of test devices, while continuously measuring key electrical and thermal parameters. Preliminary model-based prognostics algorithms have been developed making use of empirical degradation models and physics-inspired degradation model with focus on key components like electrolytic capacitors and power MOSFETs (metal-oxide-semiconductor-field-effect-transistor). This paper presents current results on the development of validation methods for prognostics algorithms of power electrolytic capacitors. Particularly, in the use of accelerated aging systems for algorithm validation. Validation of prognostics algorithms present difficulties in practice due to the lack of run-to-failure experiments in deployed systems. By using accelerated experiments, we circumvent this problem in order to define initial validation activities.
Functional characterization of cardiomyocytes derived from murine induced pluripotent stem cells <i>in vitro</i> (2009)

Several types of terminally differentiated somatic cells can be reprogrammed into a pluripotent state by ectopic expression of Klf4, Oct3/4, Sox2, and c-Myc. Such induced pluripotent stem (iPS) cells have great potential to serve as an autologous source of cells for tissue repair. In the process of developing iPS-cell-based therapies, the major goal is to determine whether differentiated cells derived from iPS cells, such as cardiomyocytes (CMs), have the same functional properties as their physiological in vivo counterparts. Therefore, we differentiated murine iPS cells to CMs in vitro and characterized them by RT-PCR, immunocytochemistry, and electrophysiology. As key markers of cardiac lineages, transcripts for Nkx2.5, alphaMHC, Mlc2v, and cTnT could be identified. Immunocytochemical stainings revealed the presence of organized sarcomeric actinin but the absence of mature atrial natriuretic factor. We examined characteristics and developmental changes of action potentials, as well as functional hormonal regulation and sensitivity to channel blockers. In addition, we determined expression patterns and functionality of cardiac-specific voltage-gated Na+, Ca2+, and K+ channels at early and late differentiation stages and compared them with CMs derived from murine embryonic stem cells (ESCs) as well as with fetal CMs. We conclude that iPS cells give rise to functional CMs in vitro, with established hormonal regulation pathways and functionally expressed cardiac ion channels; CMs generated from iPS cells have a ventricular phenotype; and cardiac development of iPS cells is delayed compared with maturation of native fetal CMs and of ESC-derived CMs. This difference may reflect the incomplete reprogramming of iPS cells and should be critically considered in further studies to clarify the suitability of the iPS model for regenerative medicine of heart disorders.
Characterization of zebrafish PSD-95 gene family members (2005)

The PSD-95 family of membrane- associated guanylate kinases (MAGUKs) are thought to act as molecular scaffolds that regulate the assembly and function of the multiprotein signaling complex found at the postsynaptic density of excitatory synapses. Genetic analysis of PSD-95 family members in the mammalian nervous system has so far been difficult, but the zebrafish is emerging as an ideal vertebrate system for studying the role of particular genes in the developing and mature nervous system. Here we describe the cloning of the zebrafish orthologs of PSD-95, PSD-93, and two isoforms of SAP-97. Using in situ hybridization analysis we show that these zebrafish MAGUKs have overlapping but distinct patterns of expression in the developing nervous system and craniofacial skeleton. Using a pan-MAGUK antibody we show that MAGUK proteins localize to neurons within the developing hindbrain, cerebellum, visual and olfactory systems, and to skin epithelial cells. In the olfactory and visual systems MAGUK proteins are expressed strongly in synaptic regions, and the onset of expression in these areas coincides with periods of synapse formation. These data are consistent with the idea that PSD-95 family members are involved in synapse assembly and function, and provide a platform for future functional studies in vivo in a highly tractable model organism.
The British Charophyta (1920)

PLATEI-WMitella mucronata var.gracillima.Hrontispiece.II. mr p-Erly stages of growth.IV
Bladder injury secondary to obturator reflex is more common with plasmakinetic transurethral resection than monopolar transurethral resection of bladder (2015)

Transurethral resection (TUR) is the most common surgical technique for the diagnosis and initial treatment of bladder cancer. In this study, we evaluated two surgical techniques in terms of bladder injury due to obturator reflex in patients that underwent TUR for non-muscle invasive bladder cancer (NMIBC).93 patients who underwent TUR for bladder cancer were analyzed. Fifty patients underwent monopolar resection and 43 patients underwent plasmakinetic resection. Standard TUR were performed with conventional Storz monopolar resection using a U-shaped cutting loop, 120V cutting/80 V coagulation settings, 5% mannitol fluid was used for irrigation. For bipolar resection, an Olympus ESG-400 plasmakinetic loop bipolar device using a U-shaped cutting loop, 160V cutting/80V coagulation settings and normal saline for irrigation was used.In the monopolar resection group; obturator reflex was seen in 4 (8%) patients. Bladder perforation caused by the obturator reflex was seen in 4 (8%) patients, but hemorrhage and other major complications were not seen in this group. In the bipolar resection group; obturator reflex was seen in 15 (34%) patients. Bladder perforation caused by the obturator reflex was seen in 10 (23%) patients.Bipolar transurethral resection of bladder tumor was not superior to monopolar resection with respect to obturator reflex and bladder perforation. We conclude that we do not yet have enough experience concerning the long-term complications and major complications associated with bipolar resection of bladder cancer.
The Trackback-Rank algorithm for the blog search (2008)

Blog is a personal publishing tool which encourages users to contributions in the Web. As the number of blog entries and contributors (bloggers) grows at a very fast pace, they are increasingly filling the Web space. Thus effective search in the blogspace become more important. For effective search, the page ranking algorithm is one of the most critical techniques. Blogs have the structural features, which do not exist in the traditional Web, such as trackback links, tags, comments. For this reason, the page ranking algorithms for the traditional Web may not work effectively in the blogspace. In this paper, we propose a new ldquotrackback-rankrdquo algorithm which considers the features of blogs for more effective blog search. We evaluate bloggers' authority, trackback connectivity, and users' reactivity in order to rank blog entries. These factors are created and modified by the interaction among blog users. The blog users read and evaluate contents of blog entries and then interaction other users. Thereby, these factors implicitly reflect the contents quality of the entries, and the trackback-rank algorithm could improve the relevance of the search result to the queries. Our experiments on a collection of 62,906 blog entries shows that the trackback-rank algorithm can more effectively find relevant information compared to the traditional ranking algorithm.
Human tonsillar dendritic cell‐induced T cell responses: analysis of molecular mechanisms using monoclonal antibodies (1989)

Dendritic cells, isolated from human tonsillar tissue, were found to be potent stimulators of the sodium periodate T cell oxidative mitogenesis reaction. Monoclonal antibodies against CD2, CD4, CD11a, CD18, LFA-3, ICAM-1, class I and class II major histocompatibility complex (MHC) inhibited T cell proliferation in this response, whereas antibodies against CD8, CD11b, CD11c and CD16 had no effect. Further, antibodies against CD2, CD11a, CD18, LFA-3 and ICAM-1 inhibited the early dendritic cell-T cell clustering event which occurs in this cell interaction. In contrast, antibodies against CD4, class I and class II MHC did not inhibit clustering. Studies examining the expression of the respective molecules upon isolated dendritic cells and T cells suggest that anti-LFA-3 and anti-class II MHC antibodies inhibit at the level of the dendritic cell, whereas anti-CD2 and anti-CD4 antibodies inhibit at the level of the T cell. However, antibodies against CD11a, CD18, ICAM-1 and class I MHC may inhibit at either or both cell levels. These findings have enabled us to propose a molecular mechanism for dendritic cell-T cell interaction in oxidative mitogenesis. Dendritic cell-T cell clustering is mediated by bidirectional binding of LFA-1 (CD11a and CD18) and ICAM-1 (involving both molecules on both cell types) and unidirectional binding of CD2 and LFA-3 (involving T cell CD2 and dendritic cell LFA-3). This initial event permits a second interaction of dendritic cell and T cell molecules, involving T cell CD4, class I MHC (possibly at both cellular levels) and dendritic cell class II MHC, which deliver the signal for proliferation.
FUNYBASE: a FUNgal phYlogenomic dataBASE (2008)

FUNYBASE constitutes a novel and useful resource for two types of analyses: (i) comparative studies can be greatly facilitated by reliable clusters of orthologs across sets of user-defined fungal genomes, and (ii) phylogenetic reconstruction can be improved by identifying genes with the highest informative value at the desired taxonomic level.
Antimony-121 Mössbauer studies of some fluoroantimonates(<scp>III</scp>) (1976)

Antimony-121 Mössbauer spectra have been recorded at liquid-helium temperatures for a number of complex anions derived from SbF3: M2[SbF5](M = Na, K, or N2H6); M[SbClF3](M = K or NH4); Na[SbClF3]·H2O; M[Sb3F10](M = Na, Tl, or NH4) : M[Sb4F13](M = K or Cs); and [NH4]4[Sb5F19]. The data are consistent with the known stereochemistry of these compounds in which the antimony 5s electron pair is stereochemically active in a distorted AX6E environment with the 3 :3 :l arrangement or monocapped octahedron, the lone pair being in the 1 position.
Dual-polarization TCDA-IB with substrate loading (2014)

Recent efforts on tightly-coupled dipole arrays (TCDA) have yielded conformal, low profile designs that demonstrate remarkable bandwidths. In [1], a TCDA with integrated balun (TCDA-IB) and substrate loading was presented. In the current paper, we extend this work to a dual-polarization TCDA that scans up to 45°. It exhibits an infinite array bandwidth of 13.5:1 (290MHz-3.9GHz) with an active VSWR<;3 and total efficiency (including reflection) >60% in all planes. The validity of the design is verified fabricating and testing an 8x8 prototype with a measured bandwidth of 11:1.
Einleitung (1981)

Die Betriebssicherheit von Zahnradgetrieben wird im wesentlichen durch die Tragfähigkeit der eingesetzten Verzahnung bestimmt. Als Kriterien für die Tragfähigkeit der Zahnräder gelten in erster Linie die Sicherheiten gegen Zahnfußbruch und Verschleiß der Zahnflanken.
Neuroprotection in glaucoma (2010)

Glaucoma is a neurodegenerative disease characterized by loss of retinal ganglion cells and their axons. Recent evidence suggests that intraocular pressure (IOP) is only one of the many risk factors for this disease. Current treatment options for this disease have been limited to the reduction of IOP; however, it is clear now that the disease progression continues in many patients despite effective lowering of IOP. In the search for newer modalities in treating this disease, much data have emerged from experimental research the world over, suggesting various pathological processes involved in this disease and newer possible strategies to treat it. This review article looks into the current understanding of the pathophysiology of glaucoma, the importance of neuroprotection, the various possible pharmacological approaches for neuroprotection and evidence of current available medications.
Automatic assessment of signal-to-thermal noise ratio of television images (1995)

A novel method which measures the thermal noise content in any television picture is presented. Our method has the following advantages (1) it is non-intrusive and does not require the use of a test signal, (2) the noise assessment is carried in the spatial domain and not in the frequency domain, thus the use of the expensive spectrum analyzer instrument is not required. The other proposed non-intrusive and spatial domain methods are limited in their accuracy up to around 40 dB signal-to-noise ratios. Above that the resulting accuracies are unacceptable. Our method yields accurate results up to 48 dB. The new FCC regulations require the operating signals-to-noise ratios to be at least equal to 40 dB. Prior to estimating the noise our method applies a filter on the picture. This filter suppresses the originally intended (non-noisy) contents of the picture but retains enough information about the noise present. From this information, an estimate of the noise present is calculated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Function of the voltage gate of gap junction channels: Selective exclusion of molecules (2002)

Gap junction channels span the membranes of two adjacent cells and allow the gated transit of molecules as large as second messengers from cell to cell. In vertebrates, gap junctions are composed of proteins from the connexin (cx) gene family. Gap junction channels formed by most connexins are affected by transjunctional voltage. The function of the voltage gate is unclear, because substantial electrical coupling typically remains with activated gates because of the channels dwelling in subconductance rather than closed states. Here, we find in Xenopus oocytes expressing cx43 or cx46 that the activated voltage gate preferentially restricts the passage of larger ions, such as fluorescent tracer molecules and cAMP, while having little effect on the electrical coupling arising from the passage of small electrolytes. Thus, a conceivable physiological role of the voltage gate is to selectively restrict the passage of large molecules between cells while allowing electrical coupling.
A 1.1 GHz first 64 b generation 2900 microprocessor (2002)

The first 64 b S/390 microprocessor implemented in a 0.18 /spl mu/m, 7-level copper interconnect bulk CMOS process, runs operating system and applications at 1.1 GHz. The frequency is achieved with interconnect width and repeater optimization, selective use of low-Vt devices, tapered library gates, and improved synthesis and circuit tuning algorithms.
Network Bandwidth Allocation Based on QoS in iSCSI OSD (2009)

Network bandwidth allocation is crucial for certain applications with Quality of Service (QoS) requirement such as multimedia in network storage system. And the iSCSI OSD storage system is an Object-BasedSystem which is a novel network storage technology. In this paper associating with the character of the iSCSI OSD storage system, we propose the Priority-Based Greed Bandwidth Allocation (PBGBA) algorithm to allocate the link network bandwidth of storage server to the clients. Based on the I/O behavior analysis, we first formulate equations to calculate the needed minimum network bandwidth according to the QoS requirement, and then in greed ways allocate the link network bandwidth according to the priority. At last we set up experimental testbed to evaluate the performance of the PBGBA. The test result shows that it has good storage bandwidth assurance.
<title>Special-Purpose Devices For Signal And Image Processing: An Opportunity In Very Large Scale Integration (VLSI)</title> (1980)

Based on the systolic array approach, new designs of special-purpose devices for filtering, correlation, convolution, and discrete Fourier transform are proposed and discussed. It is argued that because of high degrees of simplicity, regularity and concurrency inherent to these designs, their VLSI implementation will be cost effective.
Improvement of high current density PCB design on a high end server system (2013)

In this research project we provide one quick design method for a high current density power distribution board design and improvement on a high end server system. It is based on system power source to sink the current path for design PCB (Printed Circuit Board) copper shape dimension and thickness, and add some power or ground via for stitching each power or ground plane on a multi-layer PCB design to reduce DCR (Direct Current Resistance), and also considers airflow for cooling the power distribution board to make a lower temperature increase with lower power loss and a higher power efficiency with performance per watt.
Integrated laser-diode voltage driver for 20-Gb/s optical systems using 0.3- μm gate length quantum-well HEMT's (1993)

An integrated laser-diode voltage driver (LDVD) making use of enhancement/depletion AlGaAs-GaAs quantum-well high electron mobility transistors (QW HEMTs) with gate lengths of 0.3 μm has been developed. Its large signal bandwidth is 12 GHz. Eye diagrams of the output signal at bit rates up to 8 Gb/s show an opening similar to that of the input signal. Supporting material is given indicating that the LDVD might operate at bit rates up to 20 Gb/s. The maximum output current is over 90 mA; the maximum modulation voltage of 800 mV corresponds to 40-mA modulation current for a laser diode with 20-Ω dynamic resistance. The power consumption is less than 500 mW.
Artificial companions as dialogue agents (2009)

COMPANIONS is an EU project that aims to change the way we think about the relationships of people to computers and the Internet by developing a virtual conversational 'Companion'. This is intended as an agent or 'presence' that stays with the user for long periods of time, developing a relationship and 'knowing' its owners preferences and wishes. The Companion communicates with the user primarily through speech. This paper describes the functionality and system modules of the Senior Companion, one of two initial prototypes built in the first two years of the project. The Senior Companion provides a multimodal interface for eliciting and retrieving personal information from the elderly user through a conversation about their photographs. The Companion will, through conversation, elicit their life memories, often prompted by discussion of their photographs; the aim is that the Companion should come to know a great deal about its user, their tastes, likes, dislikes, emotional reactions etc, through long periods of conversation. It is a further assumption that most life information will be stored on the internet (as in the Memories for Life project: http://www.memoriesforlife.org/) and the SC is linked directly to photo inventories in Facebook, to gain initial information about people and relationships, as well as to Wikipedia to enable it to respond about places mentioned in conversations about images. The overall aim of the SC, not yet achieved, is to produce a coherent life narrative for its user from these materials, although its short term goals are to assist, amuse, entertain and gain the trust of the user. The Senior Companion uses Information Extraction to get content from the speech input, rather than conventional parsing, and retains utterance content, extracted internet information and ontologies all in RDF formalism over which it does primitive reasoning about people. It has a dialogue manager virtual machine intended to capture mixed initiative, between Companion and user, and which can be a basis for later replacement by learned components.
Harvester for canning fruit: Exploratory trials with cling peaches and Bartlett pears to evaluate feasibility of shaking fruit onto catching frame (1957)

Tree structure is the greatest deterrent to the successful mechanical harvest of fruit destined for the cannery.
Separation and Characterization of Poison Ivy and Poison Oak Urushiol Components (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSeparation and Characterization of Poison Ivy and Poison Oak Urushiol ComponentsMahmoud A. ElSohly, Prakash D. Adawadkar, Cheng-Yu Ma, and Carlton E. TurnerCite this: J. Nat. Prod. 1982, 45, 5, 532–538Publication Date (Print):September 1, 1982Publication History Published online1 July 2004Published inissue 1 September 1982https://doi.org/10.1021/np50023a004RIGHTS & PERMISSIONSArticle Views710Altmetric-Citations38LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (394 KB) Get e-Alertsclose Get e-Alerts
White Light Emission from Polymer Light-emitting Devices based on Blue and Red Phosphorescent Polymers (2003)

We demonstrate white light emission from polymer light-emitting devices (PLEDs) that are based on phosphorescent polymers consisting of a carbazole unit and a blue or red emitting Ir complex unit. The PLED using red phosphorescent polymer (RPP) or blue phosphorescent polymer (BPP) emitted blue (λ=476 nm) or red (λ=620 nm) light which is assigned to radiative relaxation from the triplet state of Ir complex units. High external quantum efficiencies of 6.5%, and 6.9% were obtained in the blue and red PLEDs, respectively. To make the white PLED, both BPP and RPP were used for the emissive layer, and the emission color was tuned by controlling the concentration ratio of both phosphorescent polymers. CIE coordinates of (0.34, 0.36) and external quantum efficiency of 6.0% were obtained at 100 cd/m2. This efficiency is the highest value in organic white-light-emitting devices.