gebhart/patrepeval huggingface dataset:
A New HTS Microwave Filter Using Dual mode Multi zigzag Microstrip Loop Resonators (2000)

A new HTS planar microwave filter using dual mode multi zigzag square loop resonators is developed.A method for the accurate calculation of the coupling coefficent between two degenerate modes in this structure is presented.The results of the full wave analysis of the 4 pole filter have shown that the filter has high performance,selectivity,and substantial size reduction.A 4 pole HTS bandpass filter with the bandwidth 1.8% at a central frequancy 1.396 GHz is designed,fabricated and experiment results is good.
Re-inventing the DRAM for embedded use: a compiled, wide-databus DRAM macrocell with high bandwidth and low power (2002)

This paper describes a compiled DRAM macro with a novel data bus architecture in which ultra-wide buses do not cost silicon area. Moreover, the architecture consumes less power for a given data transfer rate or offers much higher data rates for the same power. Lastly, it permits great flexibility in terms of multi-banking, column decoding, multiple registering and porting and even allows pitch-matched logic functions for massively parallel processing. The architecture exploits the enhanced metal layer availability in mixed DRAM/logic process and the lack of standard-product constraints in embedded use.
Formation of superoxide ion during the decomposition of hydrogen peroxide on supported metals (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of superoxide ion during the decomposition of hydrogen peroxide on supported metalsYoshio Ono, Tsuyoshi Matsumura, Nobumasa Kitajima, and Shunichi FukuzumiCite this: J. Phys. Chem. 1977, 81, 13, 1307–1311Publication Date (Print):June 1, 1977Publication History Published online1 May 2002Published inissue 1 June 1977https://pubs.acs.org/doi/10.1021/j100528a018https://doi.org/10.1021/j100528a018research-articleACS PublicationsRequest reuse permissionsArticle Views768Altmetric-Citations95LEARN 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 options Get e-Alerts
Temporal Data Update Methodologies for Data Warehousing (2014)

Data warehouse applications and business intelligence (BI) communities have been increasingly feeling the need to collect temporal data for accountability and traceability reasons. This necessitates building capabilities to capture and view transaction lineage in data warehouses based on timestamps. Data as of a point in time can be obtained across multiple tables or multiple subject areas, resolving consistency and synchronization issues. In this article we discuss implementations such as temporal data update methodologies, coexistence of load and query against the same table, performance of load and report queries, and maintenance of views on top of the tables with temporal data. We show how to pull data from heterogeneous sources and how to perform join operations with inequality predicates with more than one source table and then load them in analytical subject area tables maintaining transaction lineage. We propose several business views based on timestamp filters for use by different applications.
Higher order logic in reasoning about microwave controller software for the DSN (2002)

This paper presents an approach to reasoning about the microwave generic controller (UGC) software for the antenna microwave subsystem (UWV) for the Deep Space Network using the higher-order logic (HOL) proof system. The UGC is responsible for monitoring and controlling the switches and rain blowers for the UWV; the UGC also monitors signal injections, interlocks, and LNA sensors. A partial mechanization of a timed process algebra (TPA) embedded in the HOL is given. The TPA is used to write a formal specification of the manager in the Swi-Int (switches and interlocks) of the UGC. The behavior of the Swi-Int is specified as a parallel computation. Finally, the basis for formulating timing constraints on sequences of actions is presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Unsymmetrically tris-bridged [2.2.2]cyclophane. Syntheses of [2.2.2](1,2,4)(1,3,5)- and [2.2.2](1,2,4)(1,2,5)cyclophanes (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUnsymmetrically tris-bridged [2.2.2]cyclophane. Syntheses of [2.2.2](1,2,4)(1,3,5)- and [2.2.2](1,2,4)(1,2,5)cyclophanesMasao Nakazaki, Koji Yamamoto, and Yasuhiro MiuraCite this: J. Org. Chem. 1978, 43, 6, 1041–1044Publication Date (Print):March 1, 1978Publication History Published online1 May 2002Published inissue 1 March 1978https://pubs.acs.org/doi/10.1021/jo00400a004https://doi.org/10.1021/jo00400a004research-articleACS PublicationsRequest reuse permissionsArticle Views440Altmetric-Citations33LEARN 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 Get e-Alerts
Stereoselective nucleophilic additions to the carbon-nitrogen double bond. 2. Chiral iminium ions derived from "second generation" chiral amines (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStereoselective nucleophilic additions to the carbon-nitrogen double bond. 2. Chiral iminium ions derived from "second generation" chiral aminesRichard P. Polniaszek and Craig R. KaufmanCite this: J. Am. Chem. Soc. 1989, 111, 13, 4859–4863Publication Date (Print):June 1, 1989Publication History Published online1 May 2002Published inissue 1 June 1989https://pubs.acs.org/doi/10.1021/ja00195a044https://doi.org/10.1021/ja00195a044research-articleACS PublicationsRequest reuse permissionsArticle Views923Altmetric-Citations73LEARN 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
Acoustic ink printing: an application of ultrasonics for photographic quality printing at high speed (2002)

We have used Acoustic Ink Printing (AIP) to produce photographic quality prints at speeds that compare favorably against the state-of-the-art. In AIP an ultrasonic beam is focused on the free surface of the ink to eject discreet droplets of controlled diameter. Since the lateral dimensions of the acoustic beam determine the drop size, this "nozzleless" process enables generation of extremely small drops without sensitivity to small defects in nozzle geometry. We have used 1.5 pl drops and produced images at a quality level approaching standard silver halide processes. The printing is done at a spatial addressability of 600 spots per inch and the printed spot size can be varied by firing from 0 to 10 drops per pixel to achieve multiple gray levels at high resolution. The printheads were fabricated using conventional thin-film processes of the type used for liquid crystal display manufacturing. We have developed low-stress, high-efficiency thin-film ZnO transducers and 4-phase Fresnel lenses coated with Parylene matching layers for efficient generation and focusing of ultrasound in the 100-150 MHz frequency range. Printheads with 1024 ejectors were built at a nozzle density of 600 per inch to enable printing of a 1.7-inch-wide swath, operating at drop ejection rates up to 25 kHz. Printing has been done using aqueous based inks near room temperature on special coated papers, as well as using wax-based inks at 150 C for high quality printing on "plain" paper.
Investigation of the Lewis acid mediated stereoselective cyclization of cationic aminyl radicals leading to substituted pyrrolidines (2001)

Stereoselective Lewis acid mediated radical cyclizations of variously substituted N-chloropentenylamines afforded the corresponding pyrrolidines with good to excellent diastereoselectivities and in high yields. Several Lewis acids have been screened in an attempt to find an efficient and stereoselective protocol for the formation of pyrrolidines; no apparent correlation between the different Lewis acids and the selectivities obtained was observed.
Intermixing and shape changes during the formation of InAs self-assembled quantum dots (1997)

The initial stages of GaAs overgrowth over self-assembled coherently strained InAs quantum dots (QDs) are studied. For small GaAs coverages (below 5 nm), atomic force microscopy (AFM) images show partially covered island structures with a regular size distribution which are elongated in the [011] direction. Analysis of the AFM profiles show that a large anisotropic redistribution of the island material is taking place during the initial GaAs overgrowth. Short time annealing experiments together with photoluminescence spectroscopy on annealed QDs are consistent with a Ga and In intermixing during the overgrowth. Surface QDs capped with 5 nm or more GaAs show a strong luminescence intensity indicating that surface QDs are remarkably insensitive to surface recombination effects.
Towards the Fabrication of High-Aspect-Ratio Silicon Gratings by Deep Reactive Ion Etching (2020)

The key optical components of X-ray grating interferometry are gratings, whose profile requirements play the most critical role in acquiring high quality images. The difficulty of etching grating lines with high aspect ratios when the pitch is in the range of a few micrometers has greatly limited imaging applications based on X-ray grating interferometry. A high etching rate with low aspect ratio dependence is crucial for higher X-ray energy applications and good profile control by deep reactive ion etching of grating patterns. To achieve this goal, a modified Coburn–Winters model was applied in order to study the influence of key etching parameters, such as chamber pressure and etching power. The recipe for deep reactive ion etching was carefully fine-tuned based on the experimental results. Silicon gratings with an area of 70 × 70 mm2, pitch size of 1.2 and 2 μm were fabricated using the optimized process with aspect ratio α of ~67 and 77, respectively.
High conductance small area magnetoresistive tunnel junctions (1998)

Fe–Al 2 O 3 –CoFe mesa junctions with micron scale areas have been fabricated from dc sputtered whole wafer heterostructures by standard photolithographic processing. The junctions showed magnetoresistances (JMRs) of 6.2% at room temperature and 9.2% at 77 K. Resistance-area (RA) products as small as 9.6×10−10 Ω m2, suitable for device applications, were obtained. A JMR/RA ratio of 6.5×109% Ω−1 m−2 was also achieved. The fabrication processes we used provide a useful basis for manufacturing ferromagnetic tunnel devices for MR sensor applications.
Development of Hydrophilic Active Carbon for High Performance Adsorption Heat Pump (2006)

水蒸気を作動媒体とする吸着ヒートポンプ用吸着材の高性能化開発手法の確立を目的として，親水性処理による新規活性炭の設計・製造を行った．5種類の活性炭に対して酸化処理活性炭を製造した．酸化剤には塩酸，硝酸を使用し，濃度0.5–1.0 mol/dm3，酸化時間2–4 hの範囲の酸化処理活性炭を得た．この活性炭について，298 Kにおける水蒸気吸着等温線，官能基量（Fs）の測定，ならびに等温線に基づく細孔表面–水蒸気間の接触角（θ）の推算を行った．酸化処理活性炭の等温線は，試料によらず，細孔分布を考慮に入れた毛管凝縮のKelvin式で相関できる．その等温線は未処理活性炭に比べて低相対圧側（φ）へシフトする．また，φ=1における吸着量の1/2量を示す相対圧（φ0.5）の対数値はcos θの増大とともに直線的に減少する．Fs値はcos θの増大とともに増大する．これより，親水性官能基量が活性炭の水蒸気吸着性能の指標となることが示された．さらに，酸化処理活性炭はAHP用のシリカゲルのそれぞれクローズドシステム用として1.2倍およびデシカントシステム用として1.9倍の吸着容量を有することを認めた．
Synaptic Aging and Carnitine. (2001)

Age-related changes in neuronal functions were examined in terms of cholinergic synaptic transmission as an initial step. The synthetic capacity of acetylcholine was found to remain unchanged during the lifespan of mouse. This finding has revised the existing concept that acetylcholine synthesis is decreased in aging. The present study has revealed that the density of voltage-dependent calcium channels in synaptic plasma menbranes is decreased to reduce Ca2+ influx into synapses, resulting in the decreased release of acetylcholine. The hypofunction of cholinergic synapses occuring in aging was attempted to be restored in the socond place. Sialic acid-containing compounds including gangliosides and synthetic ganglioside analogues were found to facilitate the acetylcholine release by increasing Ca2+ influx or choline uptake. On the other hand, acethl-L-carnitine was shown to serve as a donor of acetyl residues to increase acetylcholine synthesis. This carnitine derivative may be a good candidate for an enhancer of cholinergic transmission and for anti-brain aging supplement.
CRP promotes monocyte-endothelial cell adhesion via Fcγ receptors in human aortic endothelial cells under static and shear flow conditions (2006)

Monocyte-endothelial cell adhesion is a key early event in atherogenesis. C-reactive protein (CRP), a cardiovascular risk marker, is known to stimulate ICAM and VCAM in human aortic endothelial cells (HAEC) and induces monocyte-endothelial cell adhesion. In this study, we examined the mechanisms by which native CRP promotes monocyte-endothelial cell adhesion under static conditions and tested the effect of CRP on adhesion under shear flow. Incubation of HAEC with CRP (>25 microg/ml) upregulated NF-kappaB activity, and this resulted in a significant increase in ICAM (54% increase, P<0.001), VCAM (41% increase, P<0.01), and monocyte-endothelial cell adhesion (44% increase, P<0.02) compared with those of control. Preincubation with antibodies to CD32 and CD64 but not CD16 effectively inhibited this activation. Blocking NF-kappaB activity with inhibitors or a dominant negative inhibitory kappaB significantly decreased ICAM, VCAM upregulation, and subsequent monocyte-endothelial cell adhesion. Preincubation with antibodies to CD32 and CD64 or transient transfection with small interference RNA to CD32 attenuated CRP-induced NF-kappaB activity, ICAM, VCAM, and monocyte-endothelial cell adhesion under static conditions. Also, the Syk kinase inhibitor piceatannol and MG-132, a proteasome degradation inhibitor, produced similar attenuation in NF-kappaB activity, ICAM, VCAM, and adhesion. Furthermore, CRP-activated endothelial cells supported monocyte rolling, arrest, and transmigration in shear flow (2 dyn/cm2), and this was also inhibited by preincubation with antibodies to CD32 and CD64. Thus, in HAEC, CRP upregulates monocyte-endothelial adhesion by activation of NF-kappaB through engaging the Fcgamma receptors CD32 and CD64.
A multi-band spectral subtraction method for enhancing speech corrupted by colored noise (2002)

The spectral subtraction method is a well-known noise reduction technique. Most implementations and variations of the basic technique advocate subtraction of the noise spectrum estimate over the entire speech spectrum. However, real world noise is mostly colored and does not affect the speech signal uniformly over the entire spectrum. In this paper, we propose a multi-band spectral subtraction approach which takes into account the fact that colored noise affects the speech spectrum differently at various frequencies. This method outperforms the standard power spectral subtraction method resulting in superior speech quality and largely reduced musical noise.
Effects of Ligand−Receptor Geometry and Stoichiometry on Protein-Induced Aggregation of Biotin-Modified Colloidal Gold (2001)

Colloidal gold nanoparticles have been modified with a biotin analogue (DSDA). On addition of streptavidin, a biotin-binding protein, nanoparticle aggregation is observed. The extent and rate of aggregation depend on the relative concentrations of gold nanoparticles, DSDA, and streptavidin. To explain these effects, a model has been developed. This model is an extension of both the classical Smoluchowski model of aggregation and the recently developed model of linker induced aggregation (Kisak et al.). The inclusion of geometric and steric factors in our model explains several features that are relevant with our gold particles. The essential differences between our system and that of Kisak et al. are discussed as well as possible future areas of study.
Altered cytokine production by cystic fibrosis tracheal gland serous cells (1997)

Human submucosal tracheal glands are now believed to play a major role in the physiopathology of cystic fibrosis (CF). We successfully developed techniques for culturing human tracheal gland serous cells from normal individuals (HTGS cells) and from CF patients (CF-HTGS cells) and have shown that the cultured cells have retained most of their in vivo epithelial and secretory characteristics. In order to determine to what extent the serous cells may participate in the lung defense against infection, we examined the effects of the lipopolysaccharide (LPS) of Pseudomonas aeruginosa on HTGS and CF-HTGS cells, with special reference to tumor necrosis factor alpha (TNF-alpha), interleukin-6 (IL-6), and IL-8 secretion. HTGS cells showed a daily basal secretion of IL-6 (1.68 +/- 0.14 ng/10(6) cells) and IL-8 (9.6 +/- 1.3 ng/10(6) cells) and no constitutive secretion of TNF-alpha. Treatment with P. aeruginosa LPS resulted in a significant increase in the basal production of IL-6 (increase of 200% +/- 12%) and IL-8 (525% +/- 40%) as well as a rapid production of TNF-alpha (250 +/- 38 pg/10(6) cells). The LPS-induced secretion of IL-6 and IL-8, but not that of TNF-alpha, was inhibited by glucocorticoids. CF-HTGS cells showed a much higher basal secretion of IL-6 (13.2 +/- 0.5 ng/10(6) cells) and IL-8 (45.6 +/- 7.2 ng/10(6) cells) than normal cells. Treatment with the LPS of P. aeruginosa induced increased production of IL-6 (increase of 100% +/- 8%) and IL-8 (55% +/- 18%) but did not induce the secretion of TNF-alpha. Neither intracellular TNF-alpha nor TNF-alpha transcripts were found in CF-HTGS cells, whereas they were found in normal HTGS cells. In addition, dexamethasone was found to stimulate IL-6 and IL-8 secretion (in the presence or absence of LPS) but did not induce any secretion of TNF-alpha. All these data indicate that HTGS cells are responsive to P. aeruginosa LPS, which results in an increased secretion of IL-6, IL-8, and TNF-alpha, the secretion of which appeared to be impaired in CF-HTGS cells.
Filtration Rates and Pressure Driving Force in AV Filtration (1983)

The whole blood filtration rate of hemofilters were measured in in vitro circuits simulating the pressure and flow conditions of arteriovenous filtration. For all devices tested, filtration rate was found to be independent of blood velocity and wall shear rate but to increase linearly with applied transmembrane pressure according to the following relationship: QF = K(TMPH -Δπ), where QF is device filtration rate; K is device water permeability, determined post exposure to blood; TMPH is applied transmembrane pressure; △π is colloid osmotic pressure in plasma. Such behavior suggests that transport in AV filtration is membrane limited; this is in contrast to earlier models which were based upon boundary layer concentration polarization or unfavorable osmotic gradients.
Enantiomerentrennung von (<i>R</i>,<i>S</i>)‐2‐(<i>tert</i>‐Butyl)‐3‐methyl‐4‐imidazolidinon, einem chiralen Baustein für die Aminosäuresynthese (1986)

Beide Enantiomere der Titelverbindung ( R , S )‐1 sind durch Kristallisation mit ( S )‐(−)‐Mandelsäure zu erhalten. ( R )‐ und ( S )‐ 1 lassen sich an N‐1 benzoylieren; mit den so erhaltenen Derivaten können verzweigte und nicht verzweigte, proteinogene ( R )‐ und ( S )‐Aminosäuren hergestellt werden. magnified image
High-Level Field Resistance to Bacillus sphaericus C3-41 in Culex quinquefasciatus from Southern China (2000)

A flowable mosquito-larvicidal formulation of Bacillus sphaericus strain C3-41 has been continuously used for 8 years to control Culex quinquefasciatus larvae in Dongguan, Guangdong Province, China. This formulation had high efficacy against the target larvae during the first 6 years of treatment. However, under this high selection pressure, C. quinquefasciatus showed a significant level of resistance to C3-41 from years seven to eight. The resistance ratio of field-collected larvae at LC 50 was calculated to be 22 672-fold in comparison with the susceptible laboratory colony. Interestingly, no cross-resistance was observed to B. sphaericus strain LP1-G which had the same toxicity against both susceptible and resistant larvae, and B. thuringiensis subsp. israelensis was found to be more active to the latter than the former. After six months treatment with the B. thuringiensis subsp. israelensis formulation in the B. sphaericus resistant population area, the mosquito population recovered its susceptibility to B. sphaericus C3-41, with the resistance ratio of field-collected larvae dropping from 22 672- to 5.67-fold. Keywords: Ibacillus SphaericusiIbacillus Thuringiensisi Subsp. IisraelensisiIculex Pipiens QuinquefasciatusiMosquitoBiological ControlResistance