gebhart/patrepeval huggingface dataset:
Effects of sowing date and sowing rate on plant development and grain yield of quinoa (<i>Chenopodium quinoa</i>) in a temperate environment (1991)

SUMMARY Quinoa produces a cereal-like grain with a higher protein content and a better balanced amino acid composition than the major cereals. It is cultivated at high altitudes in the Andes, and is believed to have potential for temperate regions. In the development of quinoa as an arable break crop, sowing date, sowing rate and row spacing are identified as agronomic variables having a high priority for investigation. The variety Baer, from high latitudes at sea-level in Chile, and the variety Blanca de Junin, from the inter-Andean valleys of Peru, were sown on 25 March, 14 April and 7 May 1982 at spacings between rows of 0·8 and 0·4 m and sowing rates within rows of 0·2, 0·4 and 0·6 g/m, at Cambridge, England. These varieties were chosen for their strongly contrasting origins and plant types. In another experiment sown on 15 March 1984, Blanca de Junin was replaced by another valley variety, Amarilla de Marangani, somewhat better adapted for cultivation in England. Between-row spacings of 0·4 and 0·2 m, and sowing rates of 15, 20 and 30 kg seed/ha were used. Weed competition was more intense after later sowings, causing the plots sown in May to be abandoned. At the higher sowing rates, plants were shorter, a higher proportion were stunted, branching was reduced and maturity was earlier. These effects were more marked in the valley varieties, particularly Blanca de Junin. Increases in within-row density caused greater increases in competition effects than corresponding reductions in row width, except for the effect on the proportion of branched plants. The highest grain yield, 6·96 t/ha, was obtained with Baer sown in March in rows 0·2 m apart at 20 kg seed/ha. However, Amarilla de Marangani produced a higher yield at 30 kg seed/ha than at 20 kg seed/ha, which is surprising since valley varieties are normally sown with low target population densities or in intercrop, and Amarilla de Marangani was, in other respects, less tolerant of competition than Baer. The implications of these results for the cultivation of quinoa in mechanized farming systems, both in temperate and in highland tropical regions, are discussed.
Effects of Streamwise Vortex Inducement on Growth of a Compressible Double Shear Layer (2005)

Effects of streamwise vortex inducement on growth of a compressible double shear layer are investigated experimentally. Air is injected with a subsonic speed into a co-flowing supersonic air stream in the parallel direction, forming a compressible double shear layer. The Mach numbers of the subsonic and supersonic air streams are 0.29 and 1.78, respectively. The convective Mach number is 0.62. Several types of sine-curved trailing edges are used to induce streamwise vortices into the shear layer. The amplitude, wavelength and phase of the sine curve are varied widely. It is shown that the growth of the streamwise vortices is determined by their spacing. For the symmetric sine-curved trailing edges, the streamwise vortex inducement has no effect on the growth rate of the shear layer. For the asymmetric sine-curved trailing edges, with the increase in the streamwise vortex intensity, the growth rate of the shear layer is increased. At the maximum, 90% enhancement in the mixing is achieved when compared with the straight trailing edge.
Serum MMP-9 and TIMP-1 levels are related to MRI activity in relapsing multiple sclerosis (1999)

An increase in the activity of matrix metalloproteinase-9 (MMP-9) relative to tissue inhibitor of MMP-type 1 (TIMP-1) may be related to formation of new MS lesions, suggesting that serum levels of MMP-9 and TIMP-1 may be surrogate markers of disease activity in relapsing-remitting MS.
Application of Remote Sensing for delineation of Uranium bearing Vempalli dolomites in and around Tummalapalli area, Cuddapah Basin, India (2012)

The Uanium mineralization within the Vempalli dolomites of Cuddapah Super group in Mabbuchintalapalli, Tummalapalli area falling in the Survey of India Toposheet No. 57 J/7. The Remote Sensing data obtained from IRS P6 LISS III imagery of both the areas is taken as reference for the Interpretation studies. The Remote Sensing data obtained from IRS P6 LISS III imagery of both the areas is taken as reference for the Interpretation studies. The associations of alteration processes throughout and near the mineralized sectors appear to play an important role in the distribution and localization of the mineralization. The aim of this study was to assess the effectiveness of LISS III data for detecting alteration zones as well as Uranium mineralization in parts of Cuddapah basin.
Enhancing Effect of 4-Hydroxy-3-nitrophenylacetic Acid on Transcription of the Ice Nucleation-active Gene of<i>Xanthomonas campestris</i> (1994)

Cultivation of an ice nucleation-active strain of Xanthomonas campestris in the presence (1 ppm) of 4-hydroxy-3-nitrophenylacetic acid resulted in enhancement of its ice-nucleation activity. Both the ice-nucleation-active protein, InaX, and its mRNA were effectively expressed in the bacterial cells cultured in the presence of this compound. This indicates that this compound stimulated the biosynthesis of the ice-nucleation-active protein.
Crawling by body deformation of tensegrity structure robots (2009)

In this paper, we describe the design of a deformable robot with a tensegrity structure that can crawl and we show the results of experiments showing the ability of these robots to crawl. We first describe a tensegrity structure, composed of struts and cables, and its characteristics. We next explain the principle of crawling by robot body deformation, followed by a classification of the methods by which a body can be deformed and the contact conditions of the robot through the cable-graph of the tensegrity structure. We also describe topological transition graphs that can visualize crawling from each initial contact condition. We then discuss the characteristics of the proposed robot in terms of design freedom. Finally, we show experimentally that the prototype of a tensegrity robot can crawl.
Regularized learning with feature networks (2009)

In this thesis, we present Regularized Learning with Feature Networks (RLFN), an approach for regularizing the feature weights of a regression model when one has prior beliefs about which regression coefficients are similar in value. These similarities are specified as a feature network whose semantic interpretation is that each feature coefficient should both lead to accurate predictions and be close to the average of its network neighbors. I.e., during learning, RLFN seeks a model with low training error whose feature weights vary smoothly over the network. RLFN induces a Gaussian prior over the feature weights and can be viewed as a soft variant of the dimensionality reduction technique, Locally Linear Embedding (LLE). RLFN differs from LLE by shrinking weights towards a low dimensional manifold rather than constraining them to lie on such a manifold. Experiments on synthetic data show that if the feature network is sparse, RLFN copes more robustly than LLE with "bad edges" that connect weights which should not be similar. Experiments on MRI brain images show that RLFN combined with an L1 penalty yields 92% accuracy in discriminating the scans of Alzheimer's and frontotemporal lobar degeneration patients. Here, RLFN yields superior performance to the elastic net, another technique for sparse learning which combines L1 and L 2 regularization. On standard learning benchmarks like document and handwritten digit classification, RLFN yields consistently better performance than ridge regression. On document classification, RLFN performs comparably to two semi-supervised learning methods. Extensions to RLFN allow for the modeling of disjoint classes of features whose weights are believed to be Gaussian distributed around shared but unknown means. These extensions yield improved performance on sentiment analysis of on-line product reviews and on extracting the mentions of genes from biomedical abstracts.
Music thumbnailing via structural analysis (2003)

Music thumbnailing (or music summarization) aims at finding the most representative part of a song, which can be used for web browsing, web searching and music recommendation. Three strategies are proposed in this paper for automatically generating the thumbnails of music. All the strategies are based on the results of music structural analysis, which identifies the recurrent structure of musical signals. Instead of being evaluated subjectively, the generated thumbnails are evaluated by several criteria, mainly based on previous human experiments on music thumbnailing and the properties of thumbnails used for commercial web sites. Additionally, the performance of the structural analysis is demonstrated visually using figures for qualitative evaluation, and by three novel structural similarity metrics for quantitative evaluation. The preliminary results obtained using a corpus of Beatles' songs demonstrate the promise of our method and suggest that different thumbnailing strategies might be proper for different applications.
Predicted properties of microhollow cathode discharges in xenon (2005)

A fluid model has been developed and used to help clarify the physical mechanisms occurring in microhollow cathode discharges (MHCD). Calculated current-voltage (I-V) characteristics and gas temperatures in xenon at 100 Torr are presented. Consistent with previous experimental results in similar conditions, we find a voltage maximum in the I-V characteristic. We show that this structure reflects a transition between a low-current, abnormal discharge localized inside the cylindrical hollow cathode to a higher-current, normal glow discharge sustained by electron emission from the outer surface of the cathode. This transition, due to the geometry of the device, is a factor contributing to the well-known stability of MHCDs.
.BETA.-Galactosidase-inhibiting new isoflavonoids produced by actinomycetes. (1979)

Six isoflavonoids having beta-galactosidase inhibiting activity were isolated from the culture filtrate of Streptomyces xanthophaeus. Their structures were determined by spectral analyses to be daidzein, daidzein 7-alpha-L-rhamnoside, daidzein 4',7-di-alpha-L-rhamnoside, genistein, genistein 7-alpha-L-rhamnoside and genistein 4',7-di-alpha-L-rhamnoside.
Drift with Devil: Security of Multi-Sensor Fusion based Localization in High-Level Autonomous Driving under GPS Spoofing (2020)

For high-level Autonomous Vehicles (AV), localization is highly security and safety critical. One direct threat to it is GPS spoofing, but fortunately, AV systems today predominantly use Multi-Sensor Fusion (MSF) algorithms that are generally believed to have the potential to practically defeat GPS spoofing. However, no prior work has studied whether today’s MSF algorithms are indeed sufficiently secure under GPS spoofing, especially in AV settings. In this work, we perform the first study to fill this critical gap. As the first study, we focus on a production-grade MSF with both design and implementation level representativeness, and identify two AV-specific attack goals, off-road and wrong-way attacks. To systematically understand the security property, we first analyze the upper-bound attack effectiveness, and discover a take-over effect that can fundamentally defeat the MSF design principle. We perform a cause analysis and find that such vulnerability only appears dynamically and non-deterministically. Leveraging this insight, we design FusionRipper, a novel and general attack that opportunistically captures and exploits take-over vulnerabilities. We evaluate it on 6 real-world sensor traces, and find that FusionRipper can achieve at least 97% and 91.3% success rates in all traces for off-road and wrongway attacks respectively. We also find that it is highly robust to practical factors such as spoofing inaccuracies. To improve the practicality, we further design an offline method that can effectively identify attack parameters with over 80% average success rates for both attack goals, with the cost of at most half a day. We also discuss promising defense directions.
Analog hardware description languages (2002)

With the growing trend in ASIC design to include more analog functions on chip, various design support and automation efforts have arisen to address the analog design concerns. Existing hardware description languages have been widely used for design representation, documentation and transfer mainly in the digital domain, with standards such as VHDL being fairly mature. In this paper we present two efforts that are underway in developing standardized analog hardware description languages. One of these is a new language called MHDL for analog and mixed-signal representation while the second is aimed at providing analog extensions to the existing VHDL standard.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Toward robot-assisted hard osteolytic lesion treatment using a continuum manipulator (2016)

In this paper, we describe the design and fabrication of an actuation unit for controlling a continuum dexterous manipulator (CDM). The actuation unit is attached to a positioning robot and the integrated system provides sufficient dexterity for placement of a proposed flexible cutting tool used for treatment of oseteolysis (bone degradation). Preliminary experiments on simulated osteolytic lesions demonstrated the feasibility of using the novel flexible cutter inside the continuum manipulator. In these experiments, we found an optimal combination of rotational and sweeping speed of the cutter through the lesion. We also investigated the buckling of the flexible cutter during the cutting procedure.
Magnetic polyglycidylmethacrylate microspheres by dispersion polymerization (2001)

Abstract Composite polyglycidylmethacrylate [poly(GMA)] spherical microparticles capable of responding to magnetic fields were prepared by dispersion polymerization of GMA in the presence of iron oxides. The polymerization reaction was carried out in aqueous alcoholic media (methanol, ethanol, propan‐1‐ol, and butan‐1‐ol) using poly‐( N ‐vinylpyrrolidone) and 2,2′‐azobisisobutyronitrile as a steric stabilizer and initiator, respectively. Quaternary ammonium salt (Aliquat 336) acting as an electrostatic costabilizer favorably affected dispersity. The solubility parameter of the reaction mixture determined the size of the resulting microspheres. In addition to the particle size distribution, the addition of iron oxide to the polymerization medium also caused a shift of the particle size to higher values. The results show that poly(GMA) particles contained up to 25 wt % iron oxide. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 3707–3715, 2001
Respiratory Protection Handbook (2023)

For novices and experienced health and safety professionals alike, the Respiratory Protection Handbook fills a critical gap in the respiratory protection literature. This extensive guide provides all the information you need to dramatically expand your understanding of the concepts and day-to-day operations of respiratory protection. It is a fully self-contained text that expertly accomplishes two goals: first, for the novice, it clearly explains how to establish and implement an effective respiratory protection program; and second, for the experienced professional, it provides in-depth knowledge that goes beyond basics. Respiratory Protection Handbook addresses the development of respiratory protection devices, the capabilities and limitations of specific respirators, the respirator certification system, how to select appropriate filters, how to predict the service life of sorbents, fit testing methods, assigned protection factors, and much more. Nowhere else will you find a single source on this topic containing so much information.
YC-1 activation of human soluble guanylyl cyclase has both heme-dependent and heme-independent components (2001)

YC-1 [3-(5'-hydroxymethyl-2'furyl)-1-benzyl indazole] is an allosteric activator of soluble guanylyl cyclase (sGC). YC-1 increases the catalytic rate of the enzyme and sensitizes the enzyme toward its gaseous activators nitric oxide or carbon monoxide. In other studies the administration of YC-1 to experimental animals resulted in the inhibition of the platelet-rich thrombosis and a decrease of the mean arterial pressure, which correlated with increased cGMP levels. However, details of YC-1 interaction with sGC and enzyme activation are incomplete. Although evidence in the literature indicates that YC-1 activation of sGC is strictly heme-dependent, this report presents evidence for both heme-dependent and heme-independent activation of sGC by YC-1. The oxidation of the sGC heme by 1H-(1,2,4)oxadiazole(4,3-a)quinoxalin-1-one completely inhibited the response to NO, but only partially attenuated activation by YC-1. We also observed activation by YC-1 of a mutant sGC, which lacks heme. These findings indicate that YC-1 activation of sGC can occur independently of heme, but that activation is substantially increased when the heme moiety is present in the enzyme.
Evaluation of wound healing and antimicrobial potentials of Ixora coccinea root extract (2011)

The ethanolic root extract of I. coccinea showed pronounced wound healing and antibacterial activity. The probable reason to heal the wound was that the external application of the extract prevented the microbes to invade through the wound thus the protection of wound occurs against the infection of the various organisms.
Logic Process Compatible 40nm 256K×144 Embedded RRAM with Low Voltage Current Limiter and Ambient Compensation Scheme to Improve the Read Window (2018)

In this paper, we present a low voltage current limiter that can effectively confine the filament size by limiting the write current to a preset compliance level after forming or SET operations. In addition, a word-line (WL) location-aware and a temperature compensation schemes are also proposed to deal with the ambient variations and tighten cell current distribution. As a result, the silicon data measured from a 36Mb of RRAM test chip demonstrates a 9.5uA of read window after 10K cycles and 85C 10 years of retention test in 40nm logic process.
Improving MLC Flash Performance with Workload-Aware Differentiated ECC (2016)

The adoption of small geometries and multi-level cell (MLC) technologies significantly expands the capacity and drops the price of flash memory, which, at the same time, noticeably degrades the performance and reliability of the devices. As incremental-step pulse programming (ISPP) scheme is used to increase the programming accuracy for MLC cells, there is a trade-off between the SSD write performance and raw storage reliability. What's more, ECC is widely used in SSDs to provide error-tolerance ability. Therefore, if we could use stronger ECC to increase error correction strength, a low-cost write with coarser step sizes could be applied in the ISPP scheme to promote the write performance. However, stronger ECC scheme may hurt the read performance due to the increased decoding complexity and latency. In this paper, we propose a workload-aware differentiated ECC scheme to improve the SSD write performance without sacrificing the read performance. The main idea is to dynamically classify the logical pages into three categories: write-only, readonly, and overlapped part. For write-only logical pages, low-cost write with strong ECC scheme will be applied to increase the write performance. For write logical pages in the overlapped part, the low-cost writes with strong ECC will be selectively used based on their relative write and read hotness. While for any read logical pages encoded with a stronger ECC, we will rewrite them with the normal-cost write and ECC scheme if their hotness exceed a pre-defined threshold. The evaluation results show that our workload-aware differentiated ECC scheme could reduce the write and read response times by 48% and 11% on average, respectively. Even compared with the latest previous work, our workload-aware design can still gain about 4% write performance and 11% read performance improvements.
Perfusion CT with Iodinated Contrast Material (2003)

Perfusion CT with Iodinated Contrast MaterialJames D. Eastwood1, Michael H. Lev2 and James M. Provenzale1Audio Available | Share
Implementing Value Added Applications in Next Generation Networks (2010)

One of the major issues in the future Internet is the integration of telecom networks with the Internet. In many countries, large Internet Service Providers (ISPs) are also telecom operators that have been focusing on providing Internet services through their telecom networks with telecom-grade mechanisms. In this article, we show that IP Multimedia Subsystem (IMS) is a telecom-grade mechanism that addresses this important issue. In Next Generation Network (NGN), IMS supports IP-based multimedia services that can be accessed from various wireless and wired access technologies through fixed-mobile convergence. We show how to integrate Internet Protocol Television (IPTV) with NGN/IMS to offer enhanced IPTV services for subscribers with set-top boxes or mobile phones. We specifically describe the implementations of three services: weather forecasts, short messages on TV screens and TV shopping/food ordering for mobile users. Although these services can be directly implemented in the Internet, our commercial operation experiences indicate that the NGN/IMS implementation has advantages in terms of telecom-grade security, Quality of Service (QoS), and flexible service creation.
MS/MS and MS/MS/MS Analyses in a Multisector Time-of-Flight Mass Spectrometer (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMS/MS and MS/MS/MS Analyses in a Multisector Time-of-Flight Mass SpectrometerToru. Sakurai, Hiroyuki. Ito, and Takekiyo. MatsuoCite this: Anal. Chem. 1994, 66, 14, 2313–2317Publication Date (Print):July 1, 1994Publication History Published online1 May 2002Published inissue 1 July 1994https://doi.org/10.1021/ac00086a017RIGHTS & PERMISSIONSArticle Views87Altmetric-Citations5LEARN 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 InReddit PDF (566 KB) Get e-Alerts Get e-Alerts
Integrated Optical, Acoustically Tunable Wavelength Filter (1989)

An integrated optical, acoustically tunable wavelength filter, consisting of a combination of TM-TE converter and integrated polarizer in LiNbO3, is demonstrated. The filter bandwidth is 2.8 nm; the center wavelength can be tuned from λ = 1.45 pm to λ = 1.57 pm by adjusting the driving acoustic frequency. Due to the combined acoustical/optical strip guide structure, used in the mode converter, a very low acoustic drive power of only 9 mW is required.