gebhart/patrepeval huggingface dataset:
Thermal transpiration in zeolites: A mechanism for motionless gas pumps (2008)

We explore the use of a naturally occurring zeolite, clinoptilolite, for a chip-scale, thermal transpiration-based gas pump. The nanopores in clinoptilolite enable the required free-molecular flow, even at atmospheric pressure. The pump utilizes a foil heater located between zeolite disks in a plastic package. A 2.3mm thick zeolite disk generates a typical gas flow rate of 6.6×10−3 cc/min-cm2 with an input power of &amp;lt;300mW∕cm2. The performance is constrained by imperfections in clinoptilolite, which provide estimated leakage apertures of 10.2–13.5μm∕cm2 of flow cross section. The transient response of the pump is studied to quantify nonidealities.
Neuro-fuzzy systems for engineering applications (2002)

This paper reports three advanced developments in neuro-fuzzy systems for engineering applications. The essential part of neuro-fuzzy synergism's comes from a common framework called adaptive networks, which unifies both neural networks and fuzzy systems. A neural network with the interpretation done by a fuzzy system is suitable for quality monitoring of mechanical equipment or power electronics. Neural networks like self-organizing maps or radial basis function nets can feed the data for fuzzy systems which can control battery chargers or drilling machines. An integrated neuro-fuzzy topology is described which represents both a complete feed forward network and a fuzzy controller. This data driven system is very suitable for automotive control. Neuro-fuzzy systems are an important area for technology transfer. For this transfer the concept at the University of Dortmund is presented as a successful model.
Sensorless control of permanent magnet synchronous motor (2002)

This paper introduces a sensorless control method of position estimation for permanent magnet (PM) synchronous machines. The method, using rotating vector, carrier frequency excitation and heterodyning, tracking observers for position estimation is discussed. The experimental results for the case of a buried PM machine are shown in the paper. It has been demonstrated that this technique can operate over a wide speed range.
Single-User Versus Multi-User Precoding for Millimeter Wave MIMO Systems (2017)

Given the cost and complexity associated with the deployment of a large number of radio frequency (RF) chains in millimeter wave (mmW) multi-input multi-output (MIMO) systems, this paper addresses the question of network efficiency considerations for hybrid precoding. We first establish the relevance of directional precoding structures as a low-complexity and robust solution to meet the data rate demands of single-user MIMO systems relative to the more complex and less robust eigen-mode-based precoding structures. Key to the relevance of the directional precoding structures is the sparsity of the mmW channel coupled with higher antenna dimensionality affordable due to smaller wavelengths. We then leverage the directional structure of the channel to propose a simple class of directional schedulers that offers a low-complexity and yet approximately fair separation plane in the user space. We then compare the performance of single-user precoding schemes with multi-user precoding schemes and show that from network efficiency considerations, it would be more worthwhile to expend the RF chain resource on multi-user transmissions.
Thiahelicene-based inherently chiral films for enantioselective electroanalysis (2018)

Chiral electroanalysis could be regarded as the highest recognition degree in electrochemical sensing, implying the ability to discriminate between specular images of an electroactive molecule, particularly in terms of significant peak potential difference. A groundbreaking strategy was recently proposed, based on the use of "inherently chiral" molecular selectors, with chirality and key functional properties originating from the same structural element. Large differences in peak potentials have been observed for the enantiomers of different chiral molecules, also of applicative interest, using different selectors, all of them based on atropisomeric biheteroaromatic scaffolds of axial stereogenicity. However, helicene systems also provide inherently chiral building blocks with attractive features. In this paper the enantiodiscrimination performances of enantiopure inherently chiral films obtained by electrooxidation of a thiahelicene monomer with helicoidal stereogenicity are presented for the first time. The outstanding potentialities of this novel approach are evaluated towards chiral probes with different chemical nature and bulkiness, in comparison with a representative case of the so far exploited class of inherently chiral selectors with axial stereogenicity. It is also verified that the high enantiodiscrimination ability holds as well for electron spins, as for atropisomeric selectors.
Non-invasive Optical Detection of Cell Differentiation Status Using Endogenous Sources of Optical Contrast (2012)

Two-photon fluorescence and second harmonic generation images of mesenchymal stem cells undergoing osteoblastic differentiation demonstrate the cell redox ratio of FAD/(NADH+FAD) can serve as non-invasive biomarker of cell differentiation status.
Measuring Professional Skill Development in U.S. Cities Using Internet Search Queries (2019)

Using a sample of 10 million skill development-related queries from a popular internet search engine, drawn from almost 400 U.S. cities and over a 5 year period (2012 - 2016), we characterize the skills people search for across these cities, and relate them to measures of economic output, including GDP and unemployment. Findings show that differences in the amount, type, and specialization of skill development searches distinguish economically thriving cities from those that are struggling, including explaining variance in future GDP growth after accounting for socioeconomic demographics such as income and poverty levels. Overall, internet-based skill development appears to contribute to rich cities getting richer, with initially well-off cities seeing more and more specialized skill-related searching that in turn aligns with future economic growth.
Charge Transport in Conjugated Polymers with Pendent Stable Radical Groups (2018)

Synthesizing a stable radical polymer with a conjugated backbone seems like a natural way to introduce conductivity to radical polymers, which are traditionally synthesized with insulating, nonconjugated backbones. For charge storage applications that take advantage of the redox-active nature of stable radical polymers, enhanced conductivity would improve performance. To explore the interplay between stable radicals and a conjugated backbone, we prepared and studied soluble polythiophene with high regioregularity and various concentrations of pendent radical groups to systematically examine any change in conductivity with radical incorporation. Using electron paramagnetic resonance and electrical conductivity measurements, we show that there is an exponential decrease in conductivity as we increase the percentage of pendent groups attached to repeating units, which changes the conductivity by 6 orders of magnitude between the nonradical control polythiophene material and the material with the highest radical content (∼80%). These findings serve as an important guide to the future design of radical polymers on conjugated backbones with the goal of tuning conductivity as a function of stable radical content in redox-active energy storage applications.
Cortical brain structure and sexual orientation in adult females with bipolar disorder or attention deficit hyperactivity disorder (2018)

We found evidence for a sex-reversed difference in cortical volume among nonheterosexual female patients, which provides insights into the neurobiology of sexual orientation, and may provide the first clues toward a better neurobiological understanding of the association between sexual orientation and mental health. We also suggest that sexual orientation is an important factor to consider in future neuroimaging studies of populations with certain mental health disorders.
Catalytic Enantioselective Conjugate Additions of (pin)B‐Substituted Allylcopper Compounds Generated in situ from Butadiene or Isoprene (2016)

Abstract Multicomponent catalytic enantioselective transformations that entail the combination of butadiene or isoprene (common feedstock), an enoate (prepared in one step) and B 2 (pin) 2 (commercially available) are presented. These processes constitute an uncommon instance of conjugate addition of an allyl moiety and afford the desired products in up to 83 % yield and 98:2 enantiomeric ratio. Based on DFT calculations stereochemical models and rationale for the observed profiles in selectivity are provided.
Transformation of DBA/2 mouse fetal liver cells infected in vitro by the anemic strain of Friend leukemia virus. (1979)

Fetal liver cells of DBA/2 mice were infected with the anemic strain of Friend leukemia virus (FLV-A), which has no spleen focus-forming virus (SFFV) activity. The infected cells were grown in medium with or without erythropoietin. Transformed lines were isolated only from the infected cultures that had been treated with erythropoietin at the time of their initiation. The properties of three permanent cell lines in serial passage for over 2 years are described. Each has an aneuploid karyotype. Only the immature hematopoietic cells of the first line have metacentric chromosomes. They grow in suspension, as do the erythroleukemic lines derived from leukemic spleens of FLV-infected mice, and clone on agar. They produce tumors resembling reticulum cell sarcomas upon subcutaneous inoculation into syngeneic hosts. Stimulation of differentiation induced after treatment with dimethyl sulfoxide identifies the cells of the first line as being erythroid in origin. The two other lines are adherent and epithelioid in appearance. These lines may have originated from the nonhematopoietic cells present in fetal liver. No tumors were produced after the subcutaneous inoculation of 10(6) cells. All three lines synthesize virus. The virus is attenuated for leukemogenicity and has no SFFV activity. The transforming event appears to be specific, because fetal liver cells from C57BL/6 mice, which are resistant to the induction of leukemia by FLV, were not affected by the virus. Malignant transformation of erythroid cells by FLV-A in vitro confirms the in vivo findings that SFFV may not be a necessary prerequisite for the induction of erythroleukemia in susceptible hosts.
Ultraviolet/heat dual‐curable film adhesives with pendant‐acryloyl‐functional‐group‐modified epoxy resin (2010)

Abstract To facilitate the fabrication of a reliable semiconductor package, the UV/heat dual curing of film adhesives was investigated. The curing system of the epoxy resin affected the film adhesive properties. As the UV/heat dual‐curable epoxy resin, a modified o ‐cresol novolak epoxy resin, in which half of the glycidyl groups were substituted by acryloyl groups (OCN‐AE), was applied to the film adhesive. The formulated film adhesive contained acrylic copolymer, OCN‐AE, phenolic aralkyl resin as a heat‐curing agent of the glycidyl groups, and 1‐hydroxycyclohexyl phenyl ketone as a photoinitiator of the acryloyl groups. The formulated reference film adhesive contained unmodified o ‐cresol novolak epoxy resin (OCN‐E) in place of OCN‐AE. Formulated film adhesives containing a mixture of OCN‐E and o ‐cresol novolak epoxy acrylate were also used as references. The morphology and the film adhesive properties were investigated. In these investigations, the film adhesive of OCN‐AE showed better adhesive properties, lower modulus, and a better stress‐relaxation ability than the referenced adhesives. As a result, a reliable film adhesive for semiconductor packages was successfully developed. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
A Bispecific γδ T-cell Engager Targeting EGFR Activates a Potent Vγ9Vδ2 T cell–Mediated Immune Response against EGFR-Expressing Tumors (2023)

Vγ9Vδ2 T cells are effector cells with proven antitumor efficacy against a broad range of cancers. This study aimed to assess the antitumor activity and safety of a bispecific antibody directing Vγ9Vδ2 T cells to EGFR-expressing tumors. An EGFR-Vδ2 bispecific T-cell engager (bsTCE) was generated, and its capacity to activate Vγ9Vδ2 T cells and trigger antitumor activity was tested in multiple in vitro, in vivo, and ex vivo models. Studies to explore safety were conducted using cross-reactive surrogate engagers in nonhuman primates (NHP). We found that Vγ9Vδ2 T cells from peripheral blood and tumor specimens of patients with EGFR+ cancers had a distinct immune checkpoint expression profile characterized by low levels of PD-1, LAG-3, and TIM-3. Vγ9Vδ2 T cells could be activated by EGFR-Vδ2 bsTCEs to mediate lysis of various EGFR+ patient-derived tumor samples, and substantial tumor growth inhibition and improved survival were observed in in vivo xenograft mouse models using peripheral blood mononuclear cells (PBMC) as effector cells. EGFR-Vδ2 bsTCEs exerted preferential activity toward EGFR+ tumor cells and induced downstream activation of CD4+ and CD8+ T cells and natural killer (NK) cells without concomitant activation of suppressive regulatory T cells observed with EGFR-CD3 bsTCEs. Administration of fully cross-reactive and half-life extended surrogate engagers to NHPs did not trigger signals in the safety parameters that were assessed. Considering the effector and immune-activating properties of Vγ9Vδ2 T cells, the preclinical efficacy data and acceptable safety profile reported here provide a solid basis for testing EGFR-Vδ2 bsTCEs in patients with EGFR+ malignancies.
Supplementary Table 2 from Nonclinical Development of Next-generation Site-specific HER2-targeting Antibody–drug Conjugate (ARX788) for Breast Cancer Treatment (2023)

&lt;p&gt;Supplementary Table 2 describes Cynomolgus monkey tissue cross-reactivity study&lt;/p&gt;
Optoelectronic implementation of a neural network (1990)

We present a hybrid opto-electronic implementation of a neural network. In our system the linear part of the algorithm (calculation intensive) is performed optically. The non4inear feedback is controlled by a microcomputer which takes the system output detected using a CD camera, thresholds this output and then uses the thresholded signal to commtnd the spatial light modulator which provides the input to the optical part of the system. One of the major advantages of optics in this type of architecture is its ability to work in parallel on two•dimensional data structures. However, a four-dimensional synaptic matrix is required to stoie the connections between two images. We recall and explain the Frequency Multiplexed Raster (FMR) coding scheme we have developed to enable us to store this four..dimensional array on a planar component (CGH). In addition we present some modifications to the basic synaptic matrix algorithm which improve its performance with correlated images. Finally, after presenting some first experimental results we extend the FMR coding scheme for use in generalized optical interconnections.
Controlled Radical Polymerization of Bicyclic Olefins:  A Simple Approach to Stabilizing Polystyrene Derived from Atom Transfer Radical Polymerization Methodologies (1998)

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTControlled Radical Polymerization of Bicyclic Olefins: A Simple Approach to Stabilizing Polystyrene Derived from Atom Transfer Radical Polymerization MethodologiesKenneth A. Ellzey and Bruce M. NovakView Author Information Department of Polymer Science & Engineering and Materials Research Science and Engineering Center, University of Massachusetts, Amherst, Massachusetts 01003 Cite this: Macromolecules 1998, 31, 7, 2391–2393Publication Date (Web):March 19, 1998Publication History Received11 December 1997Revised19 February 1998Published online19 March 1998Published inissue 1 April 1998https://pubs.acs.org/doi/10.1021/ma9718107https://doi.org/10.1021/ma9718107rapid-communicationACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views365Altmetric-Citations15LEARN 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 SUBJECTS:Aromatic compounds,Chemical structure,Hydrocarbons,Polymers,Radical polymerization Get e-Alerts
Revisiting a Metric for Performance Portability (2021)

Our previously proposed metric for performance portability has been successful in spurring the development of tools and encouraging fair and meaningful evaluations of applications and programming frameworks. However, several practitioners have critiqued its formulation and questioned its interpretation. In this paper, we revisit and clarify our criteria for a useful performance portability metric, and present a derivation of our metric from first principles to inform its interpretation in a variety of scenarios. We explore the implications of this derivation for practitioners, providing clear guidance for when it is appropriate to use our metric and when alternative metrics are more suitable.
A Fundamental Study of Laser Beam Welding Aluminum-Lithium Alloy 2195 for Cryogenic Tank Applications (1996)

Based on the potential for decreasing costs of joining stiffeners to skin by laser beam welding, a fundamental research program was conducted to address the impediments identified during an initial study involving laser beam welding of aluminum-lithium alloys. Initial objectives of the program were the identification of governing mechanism responsible for process related porosity while establishing a multivariant relationship between process parameters and fusion zone geometry for laser beam welds of alloy 2195. A three-level fractional factorial experiment was conducted to establish quantitative relationships between primary laser beam processing parameters and critical weld attributes. Although process consistency appeared high for welds produced during partial completion of this study, numerous cracks on the top-surface of the welds were discovered during visual inspection and necessitated additional investigations concerning weld cracking. Two experiments were conducted to assess the effect of filler alloy additions on crack sensitivity: the first experiment was used to ascertain the effects of various filler alloys on cracking and the second experiment involved modification to process parameters for increasing filler metal dilution. Results indicated that filler alloys 4047 and 4145 showed promise for eliminating cracking.
Genetic identity, biological phenotype, and evolutionary pathways of transmitted/founder viruses in acute and early HIV-1 infection (2020)

Identification of full-length transmitted HIV-1 genomes could be instrumental in HIV-1 pathogenesis, microbicide, and vaccine research by enabling the direct analysis of those viruses actually responsible for productive clinical infection. We show in 12 acutely infected subjects (9 clade B and 3 clade C) that complete HIV-1 genomes of transmitted/founder viruses can be inferred by single genome amplification and sequencing of plasma virion RNA. This allowed for the molecular cloning and biological analysis of transmitted/founder viruses and a comprehensive genome-wide assessment of the genetic imprint left on the evolving virus quasispecies by a composite of host selection pressures. Transmitted viruses encoded intact canonical genes (gag-pol-vif-vpr-tat-rev-vpu-env-nef) and replicated efficiently in primary human CD4+ T lymphocytes but much less so in monocyte-derived macrophages. Transmitted viruses were CD4 and CCR5 tropic and demonstrated concealment of coreceptor binding surfaces of the envelope bridging sheet and variable loop 3. 2 mo after infection, transmitted/founder viruses in three subjects were nearly completely replaced by viruses differing at two to five highly selected genomic loci; by 12–20 mo, viruses exhibited concentrated mutations at 17–34 discrete locations. These findings reveal viral properties associated with mucosal HIV-1 transmission and a limited set of rapidly evolving adaptive mutations driven primarily, but not exclusively, by early cytotoxic T cell responses.
Comprar On-Line Hemodiafiltration. The Journey And The Vision (Contributions To Nephrology, Vol. 175) | C. Ronco | 9783805599061 | Karger AG (2011)

Tienda online donde Comprar On-Line Hemodiafiltration. The Journey And The Vision (Contributions To Nephrology, Vol. 175) al precio 163,46 € de C. Ronco | G. Krick, tienda de Libros de Medicina, Libros de Nefrologia - Nefrologia clinica
75‐4: All‐Glass Light‐Guide Plate with Tapered Lenticular Lens Array by Mask and Etch (2020)

We propose the use of microstructure features to enable local dimming and light extraction in edge‐lit LGPs and demonstrate 115X305 mm 2 BLU with 70% uniformity (455‐points) and 19100 nits luminance by using all‐glass 1.1 mm thickness Corning Iris® glass LGP with tapered lenticular lens array fabricated using a mask and etch process.
Analysis and Optimization of Coplanar RLC Lines for GSI Global Interconnection (2004)

Compact physical models are derived for the delay and crosstalk of on-chip coplanar transmission lines, which are used in state-of-the-art high-speed microprocessors. These lines are mainly used for long global interconnects that are relatively thick and wide and have prominent inductive effects. The models are then used to optimize the design of coplanar global interconnects.
Relationship between aerosol oxidation level and hygroscopic properties of laboratory generated secondary organic aerosol (SOA) particles (2010)

Laboratory experiments investigated the relationship between oxidation level and hygroscopic properties of secondary organic aerosol (SOA) particles generated via OH radical oxidation in an aerosol flow reactor. The hygroscopic growth factor at 90% RH (HGF 90% ), the CCN activity (κ ORG,CCN ) and the level of oxidation (atomic O:C ratio) of the SOA particles were measured. Both HGF 90% and κ ORG,CCN increased with O:C; the HGF 90% varied linearly with O:C, while κ ORG,CCN mostly followed a nonlinear trend. An average HGF 90% of 1.25 and κ ORG,CCN of 0.19 were measured for O:C of 0.65, in agreement with results reported for ambient data. The κ ORG values estimated from the HGF 90% (κ ORG,HGF ) were 20 to 50% lower than paired κ ORG,CCN values for all SOA particles except 1,3,5‐trimethylbenzene (TMB), the least hygroscopic of the SOA systems. Within the limitations of instrumental capabilities, we show that differences in hygroscopic behavior among the investigated SOA systems may correspond to differences in elemental composition.