gebhart/patrepeval huggingface dataset:
A System Architecture for Computer Intrusion Detection (2001)

An intrusion into an information system tries to compromise the security of the system. Intrusion Detection Systems (IDSs) attempt to detect these intrusions.i¾ i¾ This paper discusses what an IDS requires from the target information system and how the IDS detects intrusions into the target information system. Specifically, we describe the architecture of a distributed host-based IDS developed at the Information and Systems Assurance Laboratory, Arizona State University.i¾ i¾ At each host machine in the information system we install an event data collector that collects and filters data of events from the host machine.i¾ i¾ The Centralized IDS Server receives the processed data and sends them to Individual Technique Servers.i¾ i¾ These Individual Technique Servers use different intrusion detection algorithms covering both anomaly detection techniques and signature recognition techniques.i¾ i¾ Each Individual Technique Server determines an intrusion warning (IW) level for each event.i¾ i¾ The Centralized IDS Server then integrates the IW levels from the Individual Technique Servers into a composite IW level, and provides it to the security administrator.
Effect of Polymer Coatings as Intermediate Binders on Sintering of Ceramic Parts (2018)

It has been proposed that a thin polymer layer applied to the\nsurfaces of finely divided ceramic powders would serve as a suitable\nintermediate binder for Selective Layer Sintering of ceramic pans. In this\nstudy, the effects of completeness and fraction of coa nd particle size\ndistribution on sintering rates and strengths of coated ridized glass are\nexamined. The effect of the coating as a binder during Selective Layer\nSintering as well as the binder's burnout capability during post processing\nsteps are also investigated.
Self assembly and dioxygen reactivity of an asymmetric, triply bridged diiron(II) complex with imidazole ligands and an open coordination site (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelf assembly and dioxygen reactivity of an asymmetric, triply bridged diiron(II) complex with imidazole ligands and an open coordination siteWilliam B. Tolman, Avi Bino, and Stephen J. LippardCite this: J. Am. Chem. Soc. 1989, 111, 22, 8522–8523Publication Date (Print):October 1, 1989Publication History Published online1 May 2002Published inissue 1 October 1989https://pubs.acs.org/doi/10.1021/ja00204a037https://doi.org/10.1021/ja00204a037research-articleACS PublicationsRequest reuse permissionsArticle Views311Altmetric-Citations51LEARN 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 Get e-Alerts
Memory characteristics of Si quantum dot devices with SiO/sub 2//ALD Al/sub 2/O/sub 3/ tunneling dielectrics (2002)

Presents electrical and physical characteristics of memory devices with high density Si quantum dots integrated on SiO/sub 2//ALD Al/sub 2/O/sub 3/ tunnelling dielectrics. Devices show high threshold voltage shift at low programming voltages and good reliability behaviour. ALD Al/sub 2/O/sub 3/ can be ascribed as a suitable surface for well-controlled growth of crystalline Si quantum dots for future memory applications.
Liquid chromatography/mass spectrometry analysis of exhaled leukotriene B4 in asthmatic children (2005)

In contrast to exhaled NO concentrations, exhaled LTB4 values are selectively elevated in steroid-naïve atopic asthmatic children, but not in atopic nonasthmatic children. Although placebo control studies are warranted, inhaled corticosteroids seem to reduce exhaled LTB4 in asthmatic children. LC/MS/MS analysis of exhaled LTB4 might provide a non-invasive, sensitive, and quantitative method for airway inflammation assessment in asthmatic children.
Ultrastructure of the Cell Envelope Layers and Surface Details of Legionella pneumophila (1982)

Ten strains representing six serogroups of Legionella pneumophila were examined by electron microscopy using freeze-etching, thin-sectioning and negative-staining techniques. In addition, selected strains were examined further as shadowed and freeze-dried preparations and by scanning electron microscopy. The cell envelope consisted of two membranes, evident in fractured specimens as four short ridges. The major fracture plane was through the inner membrane, and therefore the protoplasmic and extracellular fracture faces of this membrane were predominant. With the exception of one strain (Togus 1), the particle arrangement on these fracture faces was random. A peptidoglycan-like cell wall layer was revealed only in sections of partially plasmolysed cells. Membrane-bounded poly-β-hydroxybutyrate-like granules were evident in the cytoplasm and these frequently showed plastic deformation due to fracturing. Although appendages were present, the surfaces of organisms and of isolated cell membranes showed no regular arrays of particles.
Spectro-temporal analysis of speech using 2-d Gabor filters (2007)

We present a 2-D spectro-temporal Gabor filterbank based on the 2-D Fast Fourier Transform, and show how it may be used to analyze localized patches of a spectrogram. We argue that the 2-D Gabor filterbank has the capacity to decompose a patch into its underlying dominant spectro-temporal components, and we illustrate the response of our filterbank to different speech phenomena such as harmonicity, formants, vertical onsets/offsets, noise, and overlapping simultaneous speakers.
Fair operation of multi-server and multi-queue systems (2005)

This work aims at studying the fairness of multi-queue and multi-server queueing systems. We deal with the issues of queue-multiplicity, queue joining policy and queue jockeying and use a quantitative measure (RAQFM) to evaluate them. Our results yield the relative fairness of the mechanisms as a function of the system configuration and parameters. Practitioners can use these results to quantitatively account for system fairness and to weigh efficiency aspects versus fairness aspects in designing and controlling their queueing systems. In particular, we quantitatively demonstrate that: 1) Joining the shortest queue increases fairness, 2) A single "combined" queue system is more fair than "separate" (multi) queue system and 3) Jockeying from the head of a queue is more fair than jockeying from its tail.
Flexible and transparent graphene films as acoustic actuator electrodes using inkjet printing (2011)

Flexible and transparent graphene films have been fabricated via inkjet printing and vapor deposition (VDP) methods, and the graphene-based acoustic actuator could be used as an extremely thin and lightweight loudspeaker.
Using ChromaFlo intra-vascular ultrasound (IVUS) to analyze adventitial vasa vasorum distribution: considerations and recommendations (2006)

The adventitia and outer media of large blood vessels are supplied with nutrients by microscopic blood vessels called vasa vasorum. While vasa vasorum have been implicated in a number of diseases including atherosclerosis, knowledge of their functional anatomy and specific role in these diseases has been hindered due to the small size of the vasa vasorum, and difficulty in accessing them. Micro-CT and histological methods have been used in ex-vivo animal studies of the vasa vasorum, but these techniques are limited by their inability to be used for in-vivo investigation. As such, there is very little in-vivo human data available. Intra-vascular ultrasound can acquire high-resolution anatomic images of coronary vessels. ChromaFlo IVUS has been used to identify blood flow in vessel lumens and has exciting prospect for in-vivo studies of vasa vasorum functional anatomy. In this study, ChromaFlo IVUS images of the human mid-left anterior descending coronary artery (LAD) were segmented to analyze the distribution of adventitial vasa vasorum proximal to intimal plaque. Previous animal studies suggest that formation of intimal plaque is accompanied by increased density of adventitial vasa vasorum. The data collected with ChromaFlo ultrasound is inconsistent with the current literature. While IVUS has the fidelity to acquire high-resolution US images of the coronary arteries, ChromaFlo lacks the necessary resolving power to differentiate the vasa vasorum. Further study of IVUS and other imaging methods on a large cohort will provide the basis for future in-vivo analysis of coronary disease.
Splat Feature Classification With Application to Retinal Hemorrhage Detection in Fundus Images (2012)

A novel splat feature classification method is presented with application to retinal hemorrhage detection in fundus images. Reliable detection of retinal hemorrhages is important in the development of automated screening systems which can be translated into practice. Under our supervised approach, retinal color images are partitioned into nonoverlapping segments covering the entire image. Each segment, i.e., splat, contains pixels with similar color and spatial location. A set of features is extracted from each splat to describe its characteristics relative to its surroundings, employing responses from a variety of filter bank, interactions with neighboring splats, and shape and texture information. An optimal subset of splat features is selected by a filter approach followed by a wrapper approach. A classifier is trained with splat-based expert annotations and evaluated on the publicly available Messidor dataset. An area under the receiver operating characteristic curve of 0.96 is achieved at the splat level and 0.87 at the image level. While we are focused on retinal hemorrhage detection, our approach has potential to be applied to other object detection tasks.
Nevv Reactions of Vinylindoles as Heterocyclic Dienes vvith 4-Phenyl-1,2,4-triazoline-3,5-dione: Non-Concerted versus Concerted Processes (1990)

The reactions of some 3-vinylindoles and one 2-vinylindole with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) were investigated. In dependence on the structure of the vinylindole, the experimental results revealed the occurrence in some cases of a non-concerted step to furnish Michael-type adducts and in other cases of a probably concerted Diels-Alder reaction to furnish novel pyridazino[b]indoles, respectively. In one particular case, PTAD-catalysed dimerisation of the 3-vinylindole took place.
A density-functional study of the adsorption of methane-thiol on the (111) surfaces of the Ni-group metals: II. Vibrational spectroscopy (2010)

The vibrational eigenstates of methane-thiol (CH(3)SH) and methane-thiolate (CH(3)S) in the gas phase and in dense monolayers adsorbed on the (111) surfaces of the Ni-group metals have been investigated within the framework of density-functional theory using generalized response and force-constant techniques. For isolated CH(3)SH good agreement of eigenfrequencies and intensities with the measured infrared spectra is achieved. For the CH(3)S radical, experimental information from laser-induced fluorescence spectroscopy is available only for selected eigenmodes. The theoretical predictions show reasonable agreement for the C-H deformation and C-S stretching modes, but predict much higher C-H stretching frequencies in better agreement with estimates based on the vibrational fine structure of the photoemission spectra. For methane-thiol monolayers on Ni(111) and Pt(111) the calculations predict stronger red-shifts of the S-H and C-S stretching modes than reported from high-resolution electron energy loss spectroscopy (HREELS) on condensed multilayers which average over the first layer adsorbed on the metal and further physisorbed molecular layers. For methane-thiolate monolayers the calculations predict modest blue-shifts of the C-H stretching and rocking modes and for the asymmetric C-H deformation modes. Red-shifts are predicted for the symmetric C-H deformation and for the C-S stretching modes. Reasonable agreement with HREELS is achieved. The increased differences between symmetric and asymmetric C-H stretching and deformation modes induced by the adsorption is a consequence of the strongly tilted adsorption geometries.
Relationships between Viscosity and Density Measurements of Biodiesel Fuels (2007)

Abstract The viscosity values of vegetable oils vary between 27.2 and 53.6 mm2/s, whereas those of vegetable oil methyl esters between 3.59 and 4.63 mm2/s. The viscosity values of vegetable oil methyl esters highly decreases after transesterification process. Compared to no. 2 diesel fuel, all of the vegetable oil methyl esters were slightly viscous. The flash point values of vegetable oil methyl esters are highly lower than those of vegetable oils. The flash point values of vegetable oil methyl esters are highly lower than those of vegetable oils. An increase in density from 860 to 885 kg/m3 for vegetable oil methyl esters or biodiesels increases the viscosity from 3.59 to 4.63 mm2/s, and the increases are highly regular. There is high regression between density and viscosity values vegetable oil methyl esters. The relationships between viscosity and flash point for vegetable oil methyl esters are irregular. An increase in density from 860 to 885 kg/m3 for vegetable oil methyl esters increases the flash point from 401 to 453 K, and the increases are slightly regular.
Systematik der Dreschorgane (1969)

Seit der Erfindung des Schlagleistendreschers im Jahre 1785 sind zahlreiche Vorschlage und Ausfuhrungen von Dreschwerkzeugen gemacht worden, die die jeweils bekannten Einrichtungen verbessern sollten. Es wird in der vorliegenden Arbeit versucht, die Dreschorgane zu ordnen, um in einer ?oebersicht die vielen Ideen den Konstrukteuren als Anregung fur ihre Arbeit zuganglich zu machen. Als Ordnungsprinzip wird die Bewegung des Gutes in den Drescheinrichtungen zugrunde gelegt. Dabei ergeben sich folgende vier Gruppen: Tangentialsysteme, Axial-Tangential-Systeme, Axial-Tangential-Radial-Systeme und Radialsysteme. Eine weitere Gruppe umfast all diejenigen Dreschorgane, die sich in diese vier Gruppen nicht einordnen lassen. Von allen Dreschsystemen hat das Tangentialsystem mit der Kombination Trommel-Korb die weitaus groste Bedeutung erlangt. Deshalb wird in einem weiteren Abschnitt eine ?oebersicht uber die Anordnung der Elemente Trommel und Korb unter besonderer Berucksichtigung der Mehrtrommeldrescher und der Dreschwerke mit Strohleittrommeln als Trennorgan gegeben.
THE EFFECT OF RADIATION ON POLYETHYLENE (1956)

Starting with a standard grade polyethylene or perhaps one of even lower molecular weight, it is possible by a judicious selection of irradiation dose to effect a marked increase in tensile strength without any significant loss in elongation; to convert a material of poor crack-resistance to one which has complete crack-resistance; to markedly improve the heat distortion of the polymer and to improve its weathering characteristics. All these beneficial improvements can be brought about without any significant loss in the excellent dielectric properties of polyethylene. It also appears that the addition of various essential ingredients (i.e., carbon black and antioxidant) did not affect the irradiation efficiency nor presumably were the additives adversely affected. Further study is, however, necessary to elucidate the effect of different additives under varying conditions. This study indicates that at a dose of somewhere in the range of 8 to 16 million reps optimum properties can be obtained.
Maintenance of adult mouse type A spermatogonia in vitro: influence of serum and growth factors and comparison with prepubertal spermatogonial cell culture (2002)

The culture of spermatogonial cells under well-defined conditions would be an important method for elucidating the mechanisms involved in spermatogenesis and in establishing tissue regeneration in vivo. In this study, a serum-free culture system was established, with type A spermatogonia isolated from adult vitamin A-deficient mice. At days 1, 3 and 7 of culture, the viability and proliferation of cells were monitored. The viability of the cells decreased by day 7 to 10% of the cells present. Proliferation occurred mainly during day 1, when 1% of the germ cells was proliferating. Co-labelling for a germ cell marker (heat shock protein-90alpha, Hsp90alpha), and a marker used to detect dividing cells (bromodeoxyuridine, BrdU), showed that this proliferation was restricted to germ cells. In an attempt to improve these parameters, medium containing fetal calf serum (FCS) was used. Viability was not influenced by serum, but proliferation was markedly enhanced. However, after day 7 of incubation with FCS, co-immunolocalization for Hsp90alpha and BrdU showed a preferential proliferation of somatic cells. Comparison of cultures of adult cells with cultures of prepubertal germ cells, commonly used in studies of spermatogenesis, showed that prepubertal germ cells are twice as viable. In addition, a different proliferation profile was observed, with a peak at day 3. Here, a distinct proliferation of somatic cells was also noted. The results from the present study indicate that the origin of isolated germ cells partly determines culture outcome and that cultures of prepubertal germ cells may not be representative for adult spermatogenesis. Moreover, adding FCS to the culture medium invokes the risk of profound and undesirable effects on cell composition, also underlining the need for identification of germ cells during culture.
Omega 3 fatty acids and the brain: review of studies in depression. (2007)

The brain is a lipid-rich organ containing mostly complex polar phospholipids, sphingolipids, gangliosides and cholesterol. These lipids are involved in the structure and function of cell membranes in the brain. The glycerophospholipids in the brain contain a high proportion of polyunsaturated fatty acids (PUFA) derived from the essential fatty acids, linoleic acid and alpha-linolenic acid. The main PUFA in the brain are docosahexaenoic acid (DHA, all cis 4,7,10,13,16,19-22:6) derived from the omega 3 fatty acid, alpha-linolenic acid, and arachidonic acid (AA, all cis 5,8,11,14-20:4) and docosatetraenoic acid (all cis 7,10,13,16-22:4), both derived from the omega 6 fatty acid, linoleic acid. Experimental studies in animals have shown that diets lacking omega 3 PUFA lead to substantial disturbances in neural function, which in most circumstances can be restored by the inclusion of omega 3 PUFA in the diet. In the past 10 years there has been an emerging interest in treating neuropsychological disorders (depression and schizophrenia) with omega 3 PUFA. This paper discusses the clinical studies conducted in the area of depression and omega 3 PUFA and the possible mechanisms of action of these PUFA. It is clear from the literature that DHA is involved in a variety of processes in neural cells and that its role is far more complex than simply influencing cell membrane properties.
A Digital Control Method with Feedforward Reconstruction for Improved Sampling Interference Suppression in GaN HEMTs based Totem-pole PFC Converters (2018)

The duty-ratio feedforward is usually used in totem-pole power factor correction (PFC) converters with digital control to achieve high power factor. However, the sampling interference can affect the input current through the feedforward channel and reduce system performance. In this paper, an improved digital control method with feedforward reconstruction is presented. The proposed method reconstructs the input voltage feedforward in the control system using the input voltage root mean square (RMS) and phase-locked loop, and it can be applied in digitally controlled totem-pole PFC converters based on GaN high electron mobility transistors (HEMTs) to suppress sampling interference and achieve high power factor. Finally, the improved method is verified at a 3.6kW totem-pole PFC prototype with 99.26% peak efficiency. The measured power factor remains above 0.99 from half load to full load. The input current total harmonics distribution (THD) is 2.42% at full load and meet the IEC-61000-3-2 standard.
ELECTROLUMINESCENCE NEAR BAND GAP IN GALLIUM PHOSPHIDE CONTAINING SHALLOW DONOR AND ACCEPTOR LEVELS (1965)

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Suppositories containing beta-cyclodextrin complexes. Part 1: Stability studies. (1984)

Application of beta-cyclodextrin complexes of volatile substances in suppositories improves the mechanical properties and stability of suppositories. The incompatibility between the volatile components and suppository bases can be eliminated.
Highly Conducting and Transparent SnO<sub>2</sub> Thin Films Prepared by RF Magnetron Sputtering on Low-Temperature Substrates (1988)

Highly conducting and transparent thin films of undoped tin oxide (SnO 2 ) are prepared on unheated substrates (≦90°C) by rf magnetron sputtering under an applied external dc magnetic field. The lowest resistivity obtained is 1.9×10 -3 Ωcm. The SnO 2 films with a sheet resistance below 200 Ω/ s q and an average visible transmittance (between 400 and 700 nm) above 85%, and below 300 Ω/ s q above 80% (including organic film substrate) can be obtained for the films deposited on glass substrates and organic film substrates, respectively.