gebhart/patrepeval huggingface dataset:
Visualization of exception propagation for Java using static analysis (2003)

We first present a static analysis based on a set-based framework, which estimates exception propagation paths of Java programs. We construct an exception propagation graph from the static analysis information, which includes the origin of exceptions, handler of exceptions, and propagation paths of exceptions. We have implemented the exception propagation analysis and a visualization tool which visualizes propagation paths of exceptions using the exception propagation graph. This propagation information can guide programmers to detect uncaught exceptions, handle exceptions more specifically, and put exception handlers at appropriate places by tracing exception propagation.
Timing analysis of block replacement algorithms on disk caches (2002)

Cache memories are used to reduce the memory latency in systems. While instruction references of a CPU exhibit high temporal and spatial locality, disk references exhibit very minimal temporal and spatial locality. Owing to the fact that most of the block replacement algorithms exploit the available locality to improve cache performance, they are more effective with CPU instruction caches than with disk caches. This paper presents the results of an investigation of cache write policies and the impact of the Least Recently Used (LRU) and the Segmented LRU (SLRU) block replacement algorithms on the performance of disk caches. To obtain optimal performance at all workloads and cache sizes, an adaptive write caching policy is introduced. The adaptive write caching policy does a dynamic selection of the write policy at run time. Simulations reveal that when the cache size is less than 2 MB, caches employing adaptive write caching policy are 17% faster over caches employing write-back policy. For cache sizes of 16 MB and above the performance improvement is 9%. The performance improvement of caches employing adaptive write caching policy over caches employing write-through policy is 2.65% for cache sizes of 2 MB and is 27%, for cache sizes of 16 MB and above. The adaptive write caching policy yields optimum performance for many of the disk workloads and disk cache sizes.
An Overview of Brain Computer Interfaces (2015)

This paper presents an overview of the research and development of Brain Computer Interfaces (BCIs), focused mainly on the software component. A classification of BCIs is proposed, providing a general sense of the various ways one can approach such systems. The different types of BCI systems are the main focus of the paper, and related research and development efforts are explored. The proposed classification is based on several major characteristics of BCIs: independent versus dependent, invasive versus noninvasive, and exogenous versus endogenous. Issues and limitations currently faced by BCI researchers and developers as well as several existing BCI applications are also surveyed. In addition, directions of future work pertaining to BCIs are briefly discussed.
Third‐order nonlinear optical properties of parabolic and semiparabolic quantum wells (2003)

Abstract A detailed procedure for the calculation of the third‐harmonic‐generation susceptibility tensor is given in parabolic and semiparabolic quantum wells, and an analytic formula for the third‐harmonic‐generation susceptibility is obtained by the compact density matrix approach and an iterative procedure. Finally, numerical results are presented for typical GaAs/AlGaAs parabolic and semiparabolic quantum wells. The calculated results show that the third‐harmonic‐generation susceptibilities in parabolic quantum wells are over one order of magnitude greater than in semiparabolic quantum wells, and are over eight orders of magnitude greater than in bulk GaAs. In addition, the third‐harmonic‐generation susceptibilities are related to the parabolic confinement frequency and the relaxation rate.
Omni-font character recognition using templates and neural networks (2003)

With regard to facsimile graphic pages, routines to extract character images from within the page are implemented. Methods to trace joinings in closely spaced letters are discussed. Preprocessing of the extracted image by skeleton extraction (using average area) is implemented to remove font specific factors such as bold and line thickening. After specification of the reduced image size required, the image is compressed with the necessary amount by a pixel averaging and overlapping routine for better context sensitivity. The reduced images are used to train multiple MLP neural networks each for a single font using the back propagation training algorithm. The outputs of the networks are combined to form a maximum likelihood search for the best match. Results close to 100% are obtainable.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Hybrid Supercapacitor Based on Coaxially Coated Manganese Oxide on Vertically Aligned Carbon Nanofiber Arrays (2010)

Hybrid supercapacitor electrodes with remarkable specific capacitance have been fabricated by coaxially coating manganese oxide thin films on a vertically aligned carbon nanofiber array. Ultrathin manganese oxide layers are uniformly coated around each carbon nanofiber via cathodic electrochemical deposition, likely based on water electrolysis initiated electrochemical oxidation. This results in a unique core-shell nanostructure which uses the three-dimensional brush-like vertical carbon nanofiber array as the highly conductive and robust core to support a large effective surface area and provide reliable electrical connection to a thin redox active manganese oxide shell. The pseudo-capacitance of 313 F/g in addition to the electrical double layer capacitance of 36 F/g is achieved by cyclic voltammetry at a scan rate of 50 mV/s and maintains at this level as the scan rate is increased up to 2000 mV/s. A maximum specific capacitance of 365 F/g has been achieved with chronopotentiometry in 0.10 M Na2SO4 aqueous solution with ∼7.5 nm thick manganese oxide. This hybrid core-shell nanostructure demonstrates high performance in maximum specific energy (32.5 Wh/kg), specific power (6.216 kW/kg), and cycle stability (∼11% drop after 500 cycles), which are derived from cyclic voltammetry and galvanostatic charge−discharge measurements. This new architecture can be potentially developed as multifunctional electrical energy storage devices.
Network Tomography Using Passive End-to-End Measurements (2002)

Network tomography refers to the inference of characteristics of internal links in a network using end-to-end measurements. The link characteristics of interest include packet loss rate, delay, and bandwidth; here we focus on loss rate. Depending only on end-to-end measurements is convenient in the context of the Internet because network operators such as ISPs offer limited visibility into the internal functioning of their networks. Besides being an interesting problem in its own right, network tomography can help identify bottlenecks and trouble spots (e.g., points of congestion) within the network. This information can help diagnose network problems and, in the long run, drive network provisioning decisions for ISPs and network connectivity and server placement decisions for their customers such as Web site operators. Previous work on inferring link loss rate using end-to-end measurements has largely been based on active probing techniques. MINC [1] bases its inference on losses experienced by multicast probe packets injected into the network while [2] does so using closely-spaced unicast probe packets striped across multiple destinations. In contrast, our goal is to infer link loss rates based on passively observing the end-to-end loss rate for existing traffic such as that between a Web server and its clients. A passive approach has the advantage that there is no wasteful traffic and the measurements do not perturb the network. However, the disadvantage is that we have less control over the measurement process. Unlike active techniques that are able to identify and localize individual loss events, our passive approach has to make do with aggregate statistics such as the loss rate. While accuracy may suffer, we believe a passive approach is still advantageous if we can infer where the trouble spots (e.g., highly lossy links) are in the network. While being basically passive, our approach has a small active component to discover the network topology using traceroute measurements. However, these measurements only need to be made relatively infrequently and can be done in the background.
Advanced RUBIC cube processor (1983)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Richard P. Bocker, "Advanced RUBIC cube processor," Appl. Opt. 22, 2401-2402 (1983) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Interphase Cytogenetics: At the Interface of Genetics and Morphology (1999)

Cancer is a genetic disease caused by chromosomal aberrations and gene mutations, which propel normal cells into uncontrolled growth, invasiveness and metastases formation. Because chromosomal and genetic alterations impact tumour aggressiveness, therapy response, and prognosis their detection in clinical samples (e.g., fine needle aspirates and bioptic material) plays an increasingly critical role in individualized disease management. In situ hybridization with genetic markers to tumour specimen, a concept coined "Interphase Cytogenetics" [3] allows one to visualize chromosomal alterations in intact cell nuclei. Both numerical and structural chromosomal aberrations can be visualized using suitable probes or probe cocktails. The growing knowledge on tumour specific genetic and chromosomal aberrations can therefore be translated to diagnostic pathology. The identification and validation of such biomarkers will be greatly accelerated by highthroughput analysis tools such as cDNA-arrays for the analysis of differentially expressed messages [5] and tissues arrays
Genes Encoding Proteins Homologous to Halobacterial Gvps N, J, K, F & L are Located Downstream of<i>gvpC</i>in the Cyanobacterium<i>Anabaena flos-aquae</i> (1997)

Only two gas vesicle genes have been previously identified in the cyanobacteria, gvpA and gvpC, both of which encode structural gas vesicle proteins. Analysis of the nucleotide sequence immediately downstream of gvpC in the cyanobacterium Anabaena flos-aquae has revealed the presence of 4 ORFs (open reading frames) the products of which share significant homology with a number of the gene products derived from halobacterial gvp gene clusters. In halobacteria the gas vesicle gene clusters consist of 14 genes involved in gas vesicle synthesis and assembly. The product of Anabaena ORF 1, located immediately downstream of gvpC is homologous to halobacterial GvpNs. For the remaining ORFs the predicted gene products show homology to both GvpJ and GvpA for ORF 2, to GvpK and GvpA for ORF 3, and to both GvpF and GvpL for ORF 4.
PEMBUATAN KERAMIK BETA ALUMINA (Na2O - Al2O3) DENGAN ADITIF MgO DAN KARAKTERISASI SIFAT FISIS SERTA STRUKTUR KRISTALNYA (2007)

Keramik system Na2O-Al2O3 dibuat melalui reaksi padatan dari campuran bahan baku : serbuk Na2CO3, serbuk α-Al2O3, dan Mg(OH)2CO3 sebagai aditif MgO. Mole ratio antara Na2O dan Al2O3 adalah 1 : 11 , sedangkan aditif MgO divariasikan yaitu: 0, 1 %, 2 %, 3 % , dan 4 % berat. Preparasi sample dilakukan dua tahpan, tahap pertama pembuatan serbuk, ketiga macam bahan baku tersebut digiling menggunakan ball mill selama 24 jam, kemudian dikalsinasi pada suhu 1200oC selama 2 jam. Pada tahap kedua serbuk yang telah dikalsinasi digiling dan diayak hingga lolos ayakan 400 mesh, kemudian dicetak dengan cara tekan , dan disintering dengan variasi suhu yaitu 1400, 1450, 1500, 1550, dan 1600oC, serta ditahan selama 2 jam. Masing-masing sample setelah disinterring dikarakterisasi yang meliputi: sifat-sifat fisis (densitas, dan porositas), dan analisa fasa dengan difraksi sinar X. Hasil karakterisasi menunjukkan bahwa densitas tertinggi (2,34 g/cm3 ) dan porositas terendah (32 %) diperoleh pada sample dengan aditif 3 % MgO dan suhu sintering 1600oC. Hasil analisa dengan difraksi sinar X menunjukkan bahwa telah terbentuk fasa dominan Na-β″ Al2O3 dengan fasa minor Na-β′ Al2O3. Ceramic system of Na2O - Al2O3 has been made through solid-solid reaction from mixing of raw materials : powder Na2CO3, powder α-Al2O3, and Mg(OH)2CO3 as additive MgO. Mole ratio between Na2O dan Al2O3 was 1 : 11 , also additive MgO was varied such as : 0, 1 %, 2 %, 3 % , and 4 % wt. The sample preparation was done in two steps, first step was mixing of raw materials with using a ball mill for 24 hours, then it was calcined at temperature 1200oC for 2 hours. The second step was forming of calcined powder with using pressing, and then all samples were sintered at temperature: 1400, 1450, 1500, 1550, and 1600oC with holding time about 2 hours. The sintered samples were characterized such as : physical properties (density and porosity), also phases analysis by using XRD. The charachterization results show that highest density (2,34 g/cm3) and lowest porosity (32%) were found at sample with 3 % MgO and at sintering temperature1600oC. The XRD analysis show that it was obtained Na-β″ Al2O3 phase as dominat phase, and Na-β′ Al2O3 phase as minor phase.
[Anabiosis and the problem of the development of life]. (1979)

In passing to anabiosis the organisms can be dried down to a very low residual water content without losing their viability. On the base of this fact a conclusion is drawn that life-capable structures in their construction either do not imply water or imply it in an insignificant quantity. This is in agreement with the concept of initial formation of waterless "termal proteinoids" which can be considered as precursors of primitive life capable structures which later pass to functioning in interaction with water.
Positron emission imaging using acquired cone-surfaces from opposing compton cameras (2005)

The Compton Camera, a method of electronic collimation, introduces angular resolution into a gamma-ray imaging system without the need of a collimating device. Compton kinematics are used to deduce the incident trajectory of the photon, resulting in a cone-surface of possible source locations. So far this type of system has been successfully employed only as a single photon detection device. However, it has been proposed that Positron Emission Tomography may also be enhanced by implementing the Compton Camera. Conesurfaces acquired from the collinear gamma rays produced in positron annihilation may be used to validate the resulting Line of Response. Moreover, single sided detections need no longer be redundant in image reconstruction due to the ability to perform cone-surface reconstruction in tandem with reconstruction from LoRs.
Magnetic properties of Fe/Fe-N and Fe/Cu-N multilayered films having intermediate layers containing nitrogen (1995)

The structures and magnetic properties of Fe/Fe-N and Fe/Cu-N multilayered films having intermediate layers containing nitrogen were investigated. Fe/Fe-N films formed by alternate Fe sputtering and electron cyclotron resonance (ECR) nitrogen plasma exposure had Fe layers containing approximately 3 at% nitrogen, the /spl alpha/-Fe(110) lattice spacing being larger than that of pure iron. This expansion of the /spl alpha/-Fe(110) lattice spacing was observed after Fe deposition. The Fe layers containing a little nitrogen improved the soft magnetic properties. Fe/Cu-N multilayered films formed by the alternation of Fe sputtering and Cu-N nitrogen reactive sputtering also showed expansion of the /spl alpha/-Fe(110) lattice spacing and reduction of the Fe crystallite size with increasing partial N/sub 2/ gas pressure (PN/sub 2/) during Cu-N reactive sputtering. The Fe/Cu-N multilayered films achieved minimum coercivity at PN/sub 2/=7%.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The dynamics of faulting (1905)

It has been known for long that faults arrange themselves naturally into different classes, which have originated under different conditions of pressure in the rock mass. The object of the present paper is to show a little more clearly the connection between any system of faults and the system of forces which gave rise to it. It can be shown mathematically that any system of forces, acting within a rock which for the time being is in equilibrium, resolves itself at any particular point into three pressures or tensions (or both combined), acting across three planes which are at right angles to one another. Across these particular planes there is no tangential stress, but there will be tangential stress at that point across any other plane which may be drawn through it. There will evidently be positions of this hypothetical plane for which the tangential stress will be a maximum. It is evident that these maximum positions of the plane will have much to do with determining the directions of faults in the rock. We will therefore take the general case and investigate what the positions are. Suppose O to be any point in a rock, and let the three directions along which the pressures or tensions act (the directions perpendicular to the three planes mentioned above) be OX, OY, OZ. Let the pressures, or tensions, acting along these three directions be P, Q, R, which we will suppose positive when they denote pressures, and negative when they denote tensions.
The Conversion of AOF and the Problems of Supply and Wartime Organization in West Africa, 1942–1945 (1992)

Abstract On the night of November 7–8, 1942, an Anglo-American force of 110,000 troops landed at various points along the coastline of North Africa. The operation encountered several difficulties, but its success was assured when the Commander-in-Chief of the French armed forces, Admiral Jean-Francois Darlan, ordered a ceasefire that was fully implemented by November 12. Amidst much controversy, a formal agreement was concluded by Darlan and General Dwight Eisenhower which ensured effective Allied control over the area without additional bloodshed. The re-entry into World War II of French North Africa could not fail to have a profound impact on Afrique Occidentale Française (AOF), which in theory was subject to control from Algiers. As soon as the agreement in the North was concluded, Eisenhower allowed an emissary from Darlan's group to proceed to Dakar in order to secure the rallying of AOF.
An evaluation of the HotOzone/sup TM/ process: a new post etch resist and residue removal process (2002)

The HotOzone/sup TM/ process, a new ozone-water cleaning process for post-contact/via oxide etch or post-metal etch resist or residue removal, is evaluated. Test structures, using 0.35 /spl mu/m technology with I-line resist or 0.18 /spl mu/m technology with DUV resist, are fabricated on 150 mm wafers and then etched. In the first series the structures are not ashed before being subjected to the HotOzone/sup TM/ cleaning process. In the second series the structures are oxygen plasma ashed before being subjected to the HotOzone/sup TM/ cleaning process. Cross-section SEM photographs provide a preliminary assessment of the cleaning performance and corrosion performance of the new process implemented in a single wafer processing configuration with a cleaning time of 1.5 minutes or 3.0 minutes. This new process has demonstrated the potential to replace both the traditional oxygen plasma ashing and the post etch solvent clean processes for the post metal etch cleaning.
Calculation of Phonon Dispersion Curves for AlP, AlAs, and AlSb (1985)

Abstract The lattice dynamics of AlP, AlAs, and AlSb is investigated using the recently proposed binding force and the local Heine‐Abarenkov model potential. The theoretical results of the phonon dispersion curves and the dynamical elastic constants are presented although no experimental information is given on the band calculation, neutron scattering data, and ultrasonic velocity of AlP and AlAs.
Liquid crystal polarization camera (2003)

Presents a fully automated system which unites CCD camera technology with liquid crystal technology to create a polarization camera capable of sensing the polarization of reflected light from objects at pixel resolution. As polarization affords a more general physical description of light than does intensity, it can therefore provide a richer set of descriptive physical constraints for the understanding of images. The authors present a scheme for mapping polarization states into hue, saturation and intensity which is a very convenient representation for a polarization image. The polarization camera outputs such a color image which can then be used in polarization-based vision methods. The unique vision understanding capabilities of the polarization camera system are demonstrated with experimental results showing polarization-based dielectric/metal material classification, specular reflection and occluding contour segmentations in a fairly complex scene, and surface orientation constraints for object recognition.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Plasma Amyloid-β Forms in Alzheimer's Disease and Non-Alzheimer's Disease Patients (2010)

The objective of this study was to evaluate the diagnostic performance of full-length and N-truncated plasma amyloid-beta (Abeta) forms in patients with Alzheimer's disease (AD) and non-Alzheimer's disease dementia (non-AD) as compared to healthy control subjects. Plasma samples from 50 AD, 50 non-AD, and 47 control subjects were included and analyzed using a multiparameter fluorimetric bead-based immunoassay for the simultaneous quantification of different Abeta forms. No significant differences in Abeta isoforms were detected between dementia and controls; or AD, non-AD, and controls. Compared to control subjects, pooled dementia patients (AD and non-AD) and AD patients alone had significantly lower plasma Abeta1-42/AbetaN-42 ratios. In each diagnostic group, all plasma Abeta concentrations were significantly correlated. No significant correlations between plasma Abeta forms and age were found. The low diagnostic performance of cross-sectional plasma Abeta measurements hampers future application as diagnostic markers or screening tools for dementia. CSF biomarker analysis remains superior, although the possible application of longitudinal plasma Abeta measurements as screening tools for dementia remains to be elucidated.
E-cadherin expression pattern in primary colorectal carcinomas and their metastases reflects disease outcome (2006)

Examination of E-cadherin expression and distribution in colorectal tumors can be extremely valuable in predicting disease recurrence. The observation that aberrant cytoplasmic expression of E-cadherin can predict disease recurrence is obviously of great importance for both patients and clinicians, and significantly affects decisions concerning the therapy and management of the patients.