gebhart/patrepeval huggingface dataset:
Microsystem packaging: lessons from conventional low cost IC packaging (1997)

This paper describes some of the issues associated with the packaging of microsystems and how packaging can influence their reliability and performance. The importance of early consideration in the design cycle of packaging, and the environment in which the microsystem will be placed, is stressed. It illustrates how the IC packaging industry has striven to overcome the problems of residual stress, stress minimization, hermeticity, and improved thermal performance in their packages and how this can be applied to microsystem packaging. Packaging problems specific to microsystems are identified.
Electron transfer reaction and demetalation of phthalocyanines (2000)

An electron‐transfer reaction takes place in the ground state between phthalocyanines (as electron‐donors) and pyrylium cations (as electron‐acceptors) in polar solvents, reaction which leads to the phthalocyanine radical‐cations as evidenced by its absorption spectra identical to the one of the species formed by electrochemical oxidation. The fluorescence emission of the phthalocyanines is quenched by electron‐acceptors (principally quinones). The free energy change Δ G CT of the electron‐transfer reaction has been evaluated for each electron acceptor with a solvation energy of 0.14 eV in the case of dimethylformamide and 1.2 eV in that of dichloromethane. The rate constant of the quenching of the phthalocyanines singlet excited state by a series of electronacceptors is found to be of the order of 1.2 − 1.5 × 10 10 L · mol -1 s -1 . Metalated phthalocyanines are demetalated in the dark by hydroxy‐anthraquinones with a rate constant of the order of 10 −2 L · mol -1 s -1 at 292K and which increases (up to 7 × 10 −2 L · mol -1 s -1 at 349 K) with temperature. The activation energy of the demetalation reaction has been determined to be ca 30 kJ · mol -1 for 1,4‐dihydroxyanthraquinone and 35 kJ · mol -1 for 1,2,4‐trihydroxyanthraquinone.
System overview of the NASA Dryden Integrated Test Facility (1992)

The Integrated Test Facility, built at the NASA Dryden Flight Research Facility, provides new real-time test capabilities for emerging research aircraft. An overview of the test facility and the real-time systems developed to operate this unique facility is presented. The facility will reduce flight test risk by minimizing the difference between the flight and ground test environments. This ground test environment is provided by combining real-time flight simulation with the actual aircraft. A brief introduction to the facility is followed by a discussion of the generic capabilities of its real-time systems. The simulation system with flight hardware and the remotely augmented vehicle system is described. An overview of many hardware systems developed for the facility follows. The benefits of applying simulation to hardware-in-the-loop testing on the X-31 Flight Research Program are presented.
A Novel Siamese-Based Approach for Scene Change Detection With Applications to Obstructed Routes in Hazardous Environments (2019)

The demand for automatic scene change detection has massively increased in the last decades due to its importance regarding safety and security issues. Although deep learning techniques have provided significant enhancements in the field, such methods must learn which object belongs to the foreground or background beforehand. In this article, we propose an approach that employs siamese U-Nets to address the task of change detection, such that the model learns to perform semantic segmentation using background reference frames only. Therefore, any object that comes up into the scene defines a change. The experimental results show the robustness of the proposed model over the well-known public dataset CDNet2014. Additionally, we also consider a private dataset called “PetrobrasROUTES,” which comprises obstruction or abandoned objects in escape routes in hazardous environments. Moreover, the experiments show that the proposed approach is more robust to noise and illumination changes.
CYCLIC LOADING OF OLECRANON FRACTURE FIXATION CONSTRUCTS (2003)

The use of a 7.3-mm screw in conjunction with a tension band provided better fixation of simulated displaced transverse fractures than did the use of Kirschner wires in conjunction with a tension band or the use of a screw only. The AO principle of converting posterior tensile forces to articular compressive forces was not demonstrated in this study. We therefore question the validity of the tension band concept in olecranon fracture fixation and recommend passive rather than active range of motion in the immediate postoperative period to limit fracture distraction.
Exciton-exciton interaction and biexciton formation in bilayer systems (2009)

We report quantum Monte Carlo calculations of biexciton binding energies in ideal two-dimensional bilayer systems with isotropic electron and hole masses. We have also calculated exciton-exciton interaction potentials and pair-distribution functions for electrons and holes in bound biexcitons. Comparing our data with results obtained in a recent study using a model exciton-exciton potential [Schindler and Zimmermann, Phys. Rev. B 78, 045313 (2008)], we find a somewhat larger range of layer separations at which biexcitons are stable. We find that individual excitons retain their identity in bound biexcitons for large layer separations.
Trends in Microencapsulation Research (2004)

A microcapsule is a tiny capsule and its preparation procedure, called microencapsulation, can endow various traits to the core material in order to add secondary functions and/or compensate for shortcomings. This paper first gives a general overview of microencapsulation technology and subsequent sections cover topics of microencapsulation research, including application of microcapsules to information and image technologies for microparticle-based paper-like display systems, a use that has attracted considerable attention recently. The research results of the project conducted by the Japan Chemical Innovation Institute under the commission of NEDO, as one of the projects of the METI Nanotechnology Program to develop microparticle-based paper-like display systems, are also introduced.
Second harmonic generation in a MgO: LiNbO3 waveguide (1985)

The efficiency of nonlinear interactions can be greatly enhanced in guided wave structures because of the elimination of diffraction effects.1 The practical realization of visible wavelength-guided wave devices in lithium niobate is severely hindered by the phenomenon of photorefractive-index damage.2 It has recently been discovered that the photorefractivity of lithium niobate can be greatly reduced by addition of 5 % MgO doping.3
A digital phase lock loop for VLSI telecommunication applications (2003)

The authors describe the design and simulation results for two versions of a digital phase lock loop (DPLL). One version uses a simple random walk filter, whereas the second version uses a simple adaptive scheme to extend the lock frequency range without degrading the phase resolution. Both versions of the DPLL have been successfully simulated using the logic simulator SILOS. The architecture for the adaptive version of the DPLL is shown together with a portion of the simulation timing diagram for the adaptive DPLL just prior to and after lock-in.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Clinical utility of the test of variables of attention (TOVA) in the diagnosis of attention‐deficit/hyperactivity disorder (1998)

Ability of the Test of Variables of Attention (TOVA) to distinguish between referred children with attention-deficit/hyperactivity disorder (ADHD) and other (OTHER) clinical diagnoses were studied. The ADHD group differed from the OTHER group on TOVA variables and most measures from the Revised Conners Teacher Rating Scale (RCTRS) and ADD-H Comprehensive Teacher's Rating Scale (ACTeRS). The criteria of any one TOVA variable > 1.5 standard deviations from age and sex adjusted means correctly identified 80% of the sample with attention deficit disorders and 72% of the sample without attention deficit disorder. Cases misclassified by teacher ratings were often correctly classified by the TOVA and conversely. The TOVA makes a unique and important contribution to diagnostic evaluations. © 1998 John Wiley & Sons, Inc. J Clin Psychol 54: 461–476, 1998.
Toxicity of Insecticide Dust Diluents and Carriers to Larvae of the Mexican Bean Beetle12 (1947)

Journal Article Toxicity of Insecticide Dust Diluents and Carriers to Larvae of the Mexican Bean Beetle Get access Charles R. Hunt Charles R. Hunt Cornell University, Ithaca, New York Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 40, Issue 2, 1 April 1947, Pages 215–219, https://doi.org/10.1093/jee/40.2.215 Published: 01 April 1947
Real time multi-user interaction with 3D graphics via communication networks (2002)

There is a lot of development currently being carried out on cooperative visualization via communication networks. User interaction is kept to minimum in this kind of development, such as only making marks on the transmitted images, etc. There is relatively less work being done on complicated cooperative interactions, especially real-time cooperative interaction via networks. The work presented in this paper is a challenge to this type of cooperative work. The objective of the system is to allow multiple users to design a 3D scene cooperatively via communication networks in real time. The paper describes the design and communication model of the system, the design and implementation of the protocol to transmit changes in the 3D scene, the database consistency techniques and the implementation of the 3D editor interface. The current implementation status of the system shows that a real-time, full user interaction in 3D cooperative design via communication networks is achievable by our design strategy.
Novel left ventricular assist systems I and II for cardiac recovery: the driver. (2005)

We have recently described the Novel Left Ventricular Assist Systems (Novel LVAS) I and II, which avoid cannulation of cardiac chambers and synchronize pumping with the patient's electrocardiogram. We now describe the drive system in more detail. The drive unit is an air-driven pulsatile system. The driver's parameters can be programmed. This electro-pneumatic unit contains 3 modules. A remarkable feature of the driver system is that it contains 2 pneumatic units that alternate in their function every 15 minutes. This prevents overheating and component fatigue or failure, and it enables the use of smaller units. If one of the units fails, an alarm will warn of the problem, and the other will continue indefinitely. This LVAS is synchronized with the patient's ECG, which enables it to eject the stroke volume during diastole and in this way to act as a chronic counterpulsator. We have designed the Novel LVAS to operate at a low-frequency rate. This fact, together with the electrocardiographic synchronization, offers the best prospect for myocardial recovery in patients who are also receiving beta-adrenergic blocking agents. This dual therapy will help adjust heart rate to pump frequency.
Chiral Lewis Acid Catalysis in Radical Reactions:  Enantioselective Conjugate Radical Additions (1996)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTChiral Lewis Acid Catalysis in Radical Reactions: Enantioselective Conjugate Radical AdditionsMukund P. Sibi, Jianguo Ji, Jason Hongliu Wu, Stephan Gürtler, and Ned A. PorterView Author Information Department of Chemistry North Dakota State University Fargo, North Dakota 58105 Department of Chemistry, Duke University Durham, North Carolina 27708 Cite this: J. Am. Chem. Soc. 1996, 118, 38, 9200–9201Publication Date (Web):September 25, 1996Publication History Received12 July 1996Published online25 September 1996Published inissue 1 January 1996https://pubs.acs.org/doi/10.1021/ja9623929https://doi.org/10.1021/ja9623929rapid-communicationACS PublicationsCopyright © 1996 American Chemical SocietyRequest reuse permissionsArticle Views4441Altmetric-Citations192LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Lewis acids,Ligands,Stereoselectivity,Substituents,Zinc Get e-Alerts
Control of a walking robot with feet following a reference trajectory derived from ballistic motion (2002)

The goal of this paper is to define a control law and reference trajectories for a legged robot with feet. We use a computed torque control law associated with a desired motion of the legged robot derived from a ballistic trajectory. This approach leads to the same distribution of the torques as it can be observed for humans, and respects the assumption that muscle activities alternate with some periods of relaxation. Simulations are made on a simple model of quadruped for a dynamically stable planar gait.
Pholidochromis Cerasina, A New Species Of Pseudochromine Dottyback Fish From The West Pacific (Perciformes : Pseudochromidae) (2004)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Tandem MS Analysis of Model Peptide Adducts from Reactive Metabolites of the Hepatotoxin 1,1-Dichloroethylene (2000)

Dichloroethylene (DCE) is a hepatotoxin that undergoes cytochrome P450-catalyzed bioactivation in hepatocytes to form 2-chloroacetyl chloride and 1,1-dichloroethylene oxide. 2-Chloroacetyl chloride reacts with nucleophilic residues and with N-terminal amines to produce 2-chloroacetylated residues and with glutathione to form the reactive electrophile S-(2-chloroacetyl)glutathione (ClCH(2)COSG), which, in turn, is capable of sulfhydryl alkylation. 1,1-DCE oxide can bind to cysteine sulfhydryl groups and subsequently hydrolyze to form an S-carboxymethylated cysteine residue. S-Carboxymethylated, 2-chloroacetylated, and GSCOCH(2)-S-Cys-peptide adducts of model cysteine-containing peptides were synthesized, and their fragmentation patterns were characterized by electrospray tandem mass spectrometry. Synthesis of GSCOCH(2)-S-Cys-peptide adducts was achieved via a novel tert-butoxycarbonyl (tBOC) derivative of ClCH(2)COSG. CID of GSCOCH(2)-S-Cys-peptide adducts resulted in product ions and neutral losses indicative of the GSCOCH(2)-S-Cys moiety as well fragment ion pairs in the b- and y-ion series corresponding to the modified cysteine residue. S-Carboxymethylated peptides exhibited only a characteristic b- or y-series ion pair separated by 161 Da, corresponding to cysteine + CH(2)COOH. CID of 2-chloroacetylated peptides showed neutral losses of 36 (HCl), 78 (HCOCH(2)Cl), 96 (HCOCH(2)Cl + H(2)O), and 114 Da (HCOCH(2)Cl + 2H(2)O). Combinations of characteristic fragment ions, neutral losses, and ion pairs thus are characteristic for DCE-derived adducts. These features can be used in an MS/MS data reduction algorithm for the selective identification of protein targets of DCE metabolites.
4-kV 100-Mbps monolithic isolator on SOI with multi-trench isolation for wideband network (2009)

We have developed a monolithic isolator that provides an isolation voltage of 4 kV and a signal transmission rate of 100 Mbps. Two circuit areas are isolated using 34 trenches on a bonded SOI with 3-µm-thick buried oxide. The inequality in the voltages applied to the trenches is reduced using polysilicon resistors parallel to the trenches, which increases the isolation voltage from 2.4 to 4.0 kV. The isolator consists of two series of high-voltage capacitors in which silicon on buried oxide and a third metal are used as electrodes. We have also developed a network interface LSI with 4-channel isolators, which provide 4-kV isolation and 100-Mbps transmission.
Association of the variable number of tandem repeats polymorphism in the promoter region of the <i>SMYD3</i> gene with risk of esophageal squamous cell carcinoma in relation to tobacco smoking (2008)

The etiology of esophageal squamous cell carcinoma (ESCC) has been shown to be multifactorial, including genetic, epigenetic, and environmental factors, such as tobacco smoking. A variable number of tandem repeats (VNTR) polymorphism in the promoter region of SMYD3, a recently characterized histone lysine methyltransferase gene that is implicated in cell proliferation and carcinogenesis, has been shown to be functional, but its association with cancer risk has not been well established because of apparently discrepant results in different populations. In this case-control study, we genotyped 567 patients with newly diagnosed ESCC and 567 healthy controls and found an increased ESCC risk (odds ratio [OR] = 1.42, 95% confidence interval [CI] = 1.05-1.91) associated with the common SMYD3 VNTR genotype. Stratification analysis revealed that the increased risk was limited to smokers (OR = 1.99; 95% CI = 1.27-3.12). Furthermore, compared with the reference group of non-smokers carrying the homozygous or heterozygous genotype, ORs (95% CI) of the wild genotype for non-smokers, smokers who smoked <25, and >or=25 pack-years were 1.03 (0.70-1.53), 2.80 (1.66-4.70), and 4.76 (2.67-8.46), respectively (P < 0.001 for trend test), suggesting an interaction between this genetic polymorphism and smoking status. These findings provide additional evidence that the common VNTR polymorphism in the promoter region of SMYD3 gene may be a susceptibility factor for human cancers such as ESCC by interacting with tobacco carcinogens.
Lifted Convex Quadratic Programming (2016)

Symmetry is the essential element of lifted inference that has recently demon- strated the possibility to perform very efficient inference in highly-connected, but symmetric probabilistic models models. This raises the question, whether this holds for optimisation problems in general. Here we show that for a large class of optimisation methods this is actually the case. More precisely, we introduce the concept of fractional symmetries of convex quadratic programs (QPs), which lie at the heart of many machine learning approaches, and exploit it to lift, i.e., to compress QPs. These lifted QPs can then be tackled with the usual optimization toolbox (off-the-shelf solvers, cutting plane algorithms, stochastic gradients etc.). If the original QP exhibits symmetry, then the lifted one will generally be more compact, and hence their optimization is likely to be more efficient.
Measurement of motor recovery after stroke. Outcome assessment and sample size requirements. (1992)

Most of the variability in motor recovery can be explained by 30 days after stroke. These findings have important implications for clinical practice and research.
A new class of anticancer alkylphospholipids uses lipid rafts as membrane gateways to induce apoptosis in lymphoma cells (2007)

Single-chain alkylphospholipids, unlike conventional chemotherapeutic drugs, act on cell membranes to induce apoptosis in tumor cells. We tested four different alkylphospholipids, i.e., edelfosine, perifosine, erucylphosphocholine, and compound D-21805, as inducers of apoptosis in the mouse lymphoma cell line S49. We compared their mechanism of cellular entry and their potency to induce apoptosis through inhibition of de novo biosynthesis of phosphatidylcholine at the endoplasmic reticulum. Alkylphospholipid potency closely correlated with the degree of phosphatidylcholine synthesis inhibition in the order edelfosine > D-21805 > erucylphosphocholine > perifosine. In all cases, exogenous lysophosphatidylcholine, an alternative source for cellular phosphatidylcholine production, could partly rescue cells from alkylphospholipid-induced apoptosis, suggesting that phosphatidylcholine biosynthesis is a direct target for apoptosis induction. Cellular uptake of each alkylphospholipid was dependent on lipid rafts because pretreatment of cells with the raft-disrupting agents, methyl-beta-cyclodextrin, filipin, or bacterial sphingomyelinase, reduced alkylphospholipid uptake and/or apoptosis induction and alleviated the inhibition of phosphatidylcholine synthesis. Uptake of all alkylphospholipids was inhibited by small interfering RNA (siRNA)-mediated blockage of sphingomyelin synthase (SMS1), which was previously shown to block raft-dependent endocytosis. Similar to edelfosine, perifosine accumulated in (isolated) lipid rafts independent on raft sphingomyelin content per se. However, perifosine was more susceptible than edelfosine to back-extraction by fatty acid-free serum albumin, suggesting a more peripheral location in the cell due to less effective internalization. Overall, our results suggest that lipid rafts are critical membrane portals for cellular entry of alkylphospholipids depending on SMS1 activity and, therefore, are potential targets for alkylphospholipid anticancer therapy.
Office Safety (2018)

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Preferred direction Steiner trees (2001)

The planar rectilinear Steiner tree problem has been extensively studied. The common formulation ignores circuit fabrication issues such as multiple routing layers, preferred routing directions, and vias between layers. In this paper, the authors extend a previously presented planar rectilinear Steiner tree heuristic to consider layer assignment, preferred routing direction restrictions, and via minimization. They use layer-specific routing costs, via costs, and have a minimum cost objective. Their approach combines the low computational complexity of modern geometry-based methods with much of the freedom enjoyed by graph-based methods. When routing costs mirror those of traditional planar rectilinear Steiner problems, the authors' approach obtains close to 11% reductions in tree lengths, compared to minimum spanning trees; this is on par with the performance of the best available Steiner heuristics. When via costs are significant and layer costs differ, they observe average cost reductions of as much as 37%. Their method can also reduce the number of vias significantly.
High freezing point fuels used for aviation turbine engines (1979)

Broadened-specification aviation fuels could be produced from a greater fraction of crude source material with improvements in fuel supply and price. These fuels, particularly those with increased final boiling temperatures, would have higher freezing temperatures than current aviation turbine fuels. For the small but significant fraction of commercial flights where low fuel temperatures make higher freezing-point fuel use unacceptable, adaptations to the fuel or fuel system may be made to accommodate this fuel. Several techniques are discussed. Fuel heating is the most promising concept. One simple design uses existing heat rejection from the fuel-lubricating oil cooler, another uses an engine-driven generator for electrical heating.