gebhart/patrepeval huggingface dataset:
Fiber optic sensing for NDE and process control (1989)

Many optical techniques are being developed for the inspection of completed parts and for the sensing of manufacturing processes as part of process control schemes. Optical techniques are attractive because of their noncontacting nature and their ability to obtain information from a hazardous environment. However, many of these techniques currently require delicate alignment and calibration, which make them impractical outside the laboratory. In addition, the methods themselves may be hazardous if beams of high intensity laser light are used in the sensing process. The application of fiber optics to laser sensing techniques has the potential to make them more practical and safer in an industrial environment. This paper discusses three optical techniques which use fiber-optic technology to make then more robust and safe. The first uses fibers to deliver pulse laser light for a vision system which is capable of viewing high luminosity processes. The second also uses fibers to deliver pulsed laser light, but for the purpose of generating ultrasound in a region where a normal ultrasonic transducer could not be used. The third application uses fibers in the arms of a heterodyne interferometer which can be used to detect vibrations or ultrasonic waves. 12 refs., 6 figs.
Hyperglycemia Regulates Hypoxia-Inducible Factor-1α Protein Stability and Function (2004)

Hyperglycemia and hypoxia are suggested to play essential pathophysiological roles in the complications of diabetes, which may result from a defective response of the tissues to low oxygen tension. In this study, we show that in primary dermal fibroblasts and endothelial cells, hyperglycemia interferes with the function of hypoxia-inducible factor-1 (HIF-1), a transcription factor that is essential for adaptive responses of the cell to hypoxia. Experiments using proteasomal and prolyl hydroxylases inhibitors indicate that hyperglycemia inhibits hypoxia-induced stabilization of HIF-1alpha protein levels against degradation and suggest that mechanisms in addition to proline hydroxylation may be involved. This effect of hyperglycemia was dose dependent and correlates with a lower transcription activation potency of HIF-1alpha, as assessed by transient hypoxia-inducible reporter gene assay. Regulation of HIF-1alpha function by hyperglycemia could be mimicked by mannitol, suggesting hyperosmolarity as one critical parameter. The interference of hyperglycemia with hypoxia-dependent stabilization of HIF-1alpha protein levels was confirmed in vivo, where only very low levels of HIF-1alpha protein could be detected in diabetic wounds, as compared with chronic venous ulcers. In conclusion, our data demonstrate that hyperglycemia impairs hypoxia-dependent protection of HIF-1alpha against proteasomal degradation and suggest a mechanism by which diabetes interferes with cellular responses to hypoxia.
Improving housing conditions for laboratory mice: a review of 'environmental enrichment' (2002)

Laboratory animal facilities have been designed to provide a standard environment where animals can be kept in good physical health at the same time as economic and ergonomic considerations are met. Recognizing the potential welfare problem associated with behavioural restriction in such housing systems, a number of attempts have been made to improve this environment, generally described under the term "environmental enrichment". Modifications of cages for mice usually consist of providing material for nest building and structures which can serve as hiding places and/or for climbing. We have reviewed 40 studies carried out between 1987 and 2000, in which preferences as well as the effect of housing modifications have been studied. Mice will work for access to nesting material and make use of this material to make nests in which they rest. They prefer a more complex cage to the standard cage and will also work for access to cages with shelter and raised platforms. On the basis of present knowledge, it is recommended that mice should have access to nesting material. Strategies for future research are outlined in the article.
BRIEFS short reports on current agricultural research: Seed transmission of avocado sun-blotch (1962)

California Agriculture - All Issues
Central Antihypertensive Effects of Orally Active Aminopeptidase A Inhibitors in Spontaneously Hypertensive Rats (2012)

Brain renin-angiotensin system hyperactivity has been implicated in the development and maintenance of hypertension. We reported previously in the brain that aminopeptidase A and aminopeptidase N are involved in the metabolism of angiotensin II and angiotensin III, respectively. By using in vivo specific and selective aminopeptidase A and aminopeptidase N inhibitors, we showed that angiotensin III is one of the main effector peptides of the brain renin-angiotensin system, exerting a tonic stimulatory control more than blood pressure in hypertensive rats. Aminopeptidase A, the enzyme generating brain angiotensin III, thus represents a potential target for the treatment of hypertension. We demonstrated here the antihypertensive effects of RB150, a prodrug of the specific and selective aminopeptidase A inhibitor, EC33, in spontaneously hypertensive rats, a model of human essential hypertension. Oral administration of RB150 in conscious spontaneously hypertensive rats inhibited brain aminopeptidase A activity, demonstrating the central bioavailability of RB150 and its ability to generate EC33 into the brain. Oral RB150 treatment dose-dependently reduced blood pressure in spontaneously hypertensive rats with an ED(50) of 30 mg/kg, lasting for several hours. This decrease in blood pressure is partly attributed to a decrease in sympathetic tone, reducing vascular resistance. This treatment did not modify systemic renin-angiotensin system activity. Concomitant oral administration of RB150 with a systemic renin-angiotensin system blocker, enalapril, potentiated the RB150-induced blood pressure decrease achieved in <2 hours. Thus, RB150 may be the prototype of a new class of centrally active antihypertensive agents that might be used in combination with classic systemic renin-angiotensin system blockers to improve blood pressure control.
Enhancing the Stability of Perovskite Quantum Dots by Encapsulation in Crosslinked Polystyrene Beads via a Swelling–Shrinking Strategy toward Superior Water Resistance (2017)

Abstract Organic/inorganic hybrid lead halide perovskites are promising optoelectronic materials due to their unique structure, excellent properties, and fascinating potential applications in lighting, photovoltaic, etc. However, perovskite materials are very sensitive to moisture and polar solvent, which greatly hinders their practical applications. Here, highly luminescent perovskite–polystyrene composite beads with uniform morphology are prepared via a simple swelling–shrinking strategy. This process is carried out only in nonpolar toluene and hexane without the addition of any polar reagents. As a result, the as‐prepared composite beads not only retain high luminescence but also exhibit superior water‐resistant property. The composites emit strong luminescence after being immersed into water over nine months. Moreover, even in some harsh environments such as acid/alkali aqueous solution, phosphate buffer solution, and Dulbecco's modified eagle medium biological buffers, they still preserve high luminescence. The applications in light‐emitting diodes and cellular labeling agents are also carried out to demonstrate their ultrastability.
Sunspot Equilibrium (1987)

How does one explain the randomness which we see in the economy? Part of it can be traced to the randomness in the physical world which is transmitted through the economic fundamentals (such as endowments, technology and preferences). The weather provides an example. The randomness in rainfall causes randomness in crop yields which in turn generates randomness in agricultural outputs and agricultural prices. Since rainfall affects the economic fundamentals (in particular, it affects agricultural technology), it is said to be an intrinsic variable. Hence, uncertainty about rainfall is also an example of intrinsic uncertainty (see Cass and Shell 1983, p. 194). The classic Arrow–Debreu extension of the general-equilibrium model to include uncertainty has long been the basis for analysing intrinsic uncertainty (see, e.g., Debreu 1959, ch. 7).
<title>Application of lock-in data processing for thermographic NDT of concrete structures</title> (2002)

A new quantitative nondestructive testing technique for delamination defects in concrete structures was developed based on the phase delay measurement using a lock-in infrared thermography under the application of periodical heating. The lock-in thermography technique was developed based on the thermal insulation method thermographic NDT. Experimental studies were made on the applicability to the detection of artificial delamination defects in concrete blocks. Concrete blocks were periodically heated by quartz lamps combined with the light dimmer controller. The controller was operated by the same reference signal for the lock-in thermography. It was found that the delamination defects were detected by the localized contrast change in the phase delay images. It was also found that the location and size of the delamination defects can be estimated by the area of contrast change in the phase delay images which was clearly observed compared with conventional thermography techniques. The relationship between the values of phase delay and heating period was examined for several defect depths and several heating periods. It was found that the phase delay curve for certain defect depth shows the peak of the contrast in phase delay image at certain heating period and the depth of the delamination defects can be estimated from this relationship. Finally, the proposed lock-in thermographic NDT technique was applied for the quantitative measurement of the actual delamination defects found under railway bridge. It was fund that the depths of the delamination defects can be estimated using the master curve of the relationship between the values of phase delay and heating period made by the experiments for artificial delamination defects.
Suppression of boron penetration into an ultra-thin gate oxide (≤7 nm) by using a stacked-amorphous-silicon (SAS) film (2002)

The effect of boron penetration through an ultra-thin oxide (/spl les/7 nm) can be suppressed by using a stacked-amorphous-silicon (SAS) gate structure for pMOSFET. The SAS gate capacitor exhibits a smaller flat-band voltage shift, a lesser charge trapping and interface state generation rate, and a larger charge-to-breakdown than those of the as-deposited poly-Si (ADP) gate capacitor. The SiO/sub 2Si and poly-Si/SiO/sub 2/ interfaces of the SAS gate are also much smoother than those of the ADP gate,.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Interval arithmetic recursive subdivision for implicit functions and constructive solid geometry (1992)

Article Interval arithmetic recursive subdivision for implicit functions and constructive solid geometry Share on Author: Tom Duff AT&T Bell Laboratories, 600 Mountuin Avenue, Murray Hill, New Jersey AT&T Bell Laboratories, 600 Mountuin Avenue, Murray Hill, New JerseyView Profile Authors Info & Claims SIGGRAPH '92: Proceedings of the 19th annual conference on Computer graphics and interactive techniquesJuly 1992 Pages 131–138https://doi.org/10.1145/133994.134027Published:01 July 1992 106citation1,252DownloadsMetricsTotal Citations106Total Downloads1,252Last 12 Months31Last 6 weeks4 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Force Exertion in Fungal Infection (2002)

Fungal pathogens of plants or animals invade their hosts either by secretion of lytic enzymes, exerting force, or by a combination of both. Although many fungi are thought to rely mostly on lysis of the host tissue, some plant pathogenic fungi differentiate complex infection cells that develop enormous turgor pressure, which in turn is translated into force used for invasion. In order to understand mechanisms of fungal infection in detail, methods have been developed that indirectly or directly measure turgor pressure and force. In this article, these methods are described and critically discussed, and their importance in analysis of fungal infection are outlined.
Effect of Slow Cooling in Reducing Pore Size in a Sintered Powder Metallurgical 6061Aluminium Alloy (2011)

The usage of powder metallurgy aluminium compacts in lieu of ferrous components in automotives helps to lower vehicle weight. The major drawback in the commercially available press sintered aluminium alloy is porosity which is mainly dependent on the powder metallurgical process parameters such as compaction pressure, sintering temperature and cooling rate after sintering. In this paper the effect of particle size and furnace controlled cooling after sintering on porosity level and micro hardness of an elemental 6061 aluminium alloy has been investigated. Aluminium particle sizes of 20 µm and 150 µm were used. The elemental 6061 aluminium alloy powders are warm compacted at 175 MPa. After sintering for about one hour at 600°C, the aluminium compacts were furnace cooled at the rate of 1°C /min to different temperatures of 500°C, 400°C, 300°C and 200?C. When the cooling temperature after sintering inside the furnace is effected at various temperatures from 600°C to 200°C, for a precipitate hardened aluminium compacts with aluminium particle size of 20 µm, the porosity level reduced by 26% and that for aluminium particle size of 150µm, the porosity level reduced by 23%. Marked improvement in micro hardness value is also observed correspondingly.
Sealife: The UK Merchant Shipping Industry's Manpower Development Programme — (1980)

Introduction Nearly six years ago British shipowners got together with the seafarers' unions and the government to launch a joint programme. They named it “Sealife”. Its aim was and is to help shipping companies to recruit and hold on to the ratings and officers they need to man their ships. It has turned out to be, at least, an interesting exercise in the consultative reform of an industry's manpower practices and it is far from finished.
Ultrasonic micronebulizer inferface for high-performance liquid chromatography with flame photometric detector (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUltrasonic micronebulizer inferface for high-performance liquid chromatography with flame photometric detectorJ. F. Karnicky, L. T. Zitelli, and S. Van der WalCite this: Anal. Chem. 1987, 59, 2, 327–333Publication Date (Print):January 15, 1987Publication History Published online1 May 2002Published inissue 15 January 1987https://pubs.acs.org/doi/10.1021/ac00129a023https://doi.org/10.1021/ac00129a023research-articleACS PublicationsRequest reuse permissionsArticle Views51Altmetric-Citations27LEARN 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
Adaptive channel estimation with velocity estimator for W-CDMA receiver (2002)

Adaptive channel estimation with velocity estimator is proposed for the 3rd generation cellular system called IMT-2000. By using the proposed velocity estimator, we can select the best channel estimation mode depend based on the estimated vehicular speed. The comparison of several channel estimation schemes is studied analytically. Then each channel estimation's capability depend on vehicular speed is cleared. We studied the velocity estimator for channel estimation control. We evaluated the velocity estimator and adaptive channel estimation with velocity estimator under a multi-speed environment. The proposed adaptive channel estimator can accomplish conflicting features, a wide vehicular speed range, low speed to 300 km/h, good SNR performance, and low power consumption for the user equipment.
Hardware-assisted replay of multiprocessor programs (1991)

Shared-memory parallel programs can be highly nondeterministic due to the unpredictable order in which shared references are satisfied. However, deterministic execution is extremely important for debugging' and can also be used for fault-tolerance and other replay-based algorithms. We present a hardware/software design that allows the order of memory references in a parallel program to be logged efficiently by recording a subset of the cache traffic between memory and the CPU 's. This log can then be used along with hardware and software control to replay execution.
The Harvey Lectures for 1905-6 (1907)

Article MetricsDownloadsCitationsNo data available.01AugSepOctNovDecJan10Total6 MonthsTotal number of downloads for the most recent 6 whole calendar months.
<title>Smart measurement system for resistive (bridge) or capacitive sensors</title> (1998)

A low-cost smart measurement system for resistive (bridge) and capacitive sensors is presented and demonstrated. The measurement system consists of three main parts: the sensor element, a universal transducer interface (UTI) and a microcontroller. The UTI is a sensor-signal-to-time converter, based on a period-modulated oscillator, which is equipped with front-ends for many types of resistive (bridge) and capacitive sensors, and which generates a microcontroller-compatible output signal. The microcontroller performs data acquisition of the output signals from the interface UTI, controls the working status of the UTI for a specified application and communicates with a personal computer. Continuous auto-calibration of the offset and the gain of the complete system is applied to eliminate many nonidealities. Experimental results show that the accuracy and resolution are 14 bits and 16 bits, respectively, for a measurement time of about 100 ms.
Through the Looking Glass - The 2018 Edition: Trends in Solid-State Circuits from the 65th ISSCC (2018)

The International Solid-State Circuits Conference (ISSCC) is the flagship conference of the IEEE Solid-State Circuits Society. This year, for the 65th ISSCC, the theme is "Silicon Engineering a Social World." Continued advances in solid-state circuits and systems have brought ever-more powerful communication and computational capabilities into mobile form factors. Such ubiquitous smart devices lie at the heart of a revolution shaping how we connect, collaborate, build relationships, and share information. These social technologies allow people to maintain connections and support networks not otherwise possible; they provide the ability to access information instantaneously and from any location, thereby helping to shape world events and culture, empowering citizens of all nations, and creating social networks that allow worldwide communities to develop and form bonds based on common interests.
Prolonged ex vivo culture of human bone marrow mesenchymal stem cells influences their supportive activity toward NOD/SCID-repopulating cells and committed progenitor cells of B lymphoid and myeloid lineages (2009)

Early passage mesenchymal stem cells supported hematopoietic progenitor cell expansion and differentiation toward both B lymphoid and myeloid lineages. Late passage mesenchymal stem cells did not support hematopoietic progenitor cell and myeloid cell outgrowth but maintained B-cell supportive ability. In vitro maintenance of NOD/SCID mouse repopulating cells cultured for 1 week in contact with mesenchymal stem cells was effective until the fourth passage of the mesenchymal cells and declined thereafter. The levels of engraftment of CD34(+) cells in NOD/SCID mice was higher when these cells were co-injected with early passage mesenchymal stem cells; however mesenchymal cells expanded beyond nine passages were ineffective in promoting CD34(+) cell engraftment. Non-contact cultures indicated that mesenchymal stem cell supportive activity involved diffusible factors. Among these, interleukins 6 and 8 contributed to the supportive activity of early passage mesenchymal stem cells but not to those of late passage cells. The phenotype, as well as fat, bone and cartilage differentiation capacity, of mesenchymal stem cells did not change during their culture. Conclusions Extended culture of mesenchymal stem cells alters the ability of these cells to support hematopoietic progenitor cells without causing concomitant changes in their phenotype or differentiation capacity.
5-Phenylindazole (1996)

The title compound, C13H10N2, packs in chains along the a axis via stronger and more linear N-H⋯N hydrogen bonds than those observed in unsubstituted indazole. These chains are linked by C-H⋯N and C-H⋯phenyl contacts along b, giving rise to a wave-like structure.
1,3-Dialkyl-3-acyltriazenes, a novel class of antineoplastic alkylating agents (1990)

Aliphatic triazenes, such as 1,3-dimethyltriazene, are potent biological alkylating agents because they form alkyldiazonium ions. They are also subject to very rapid proteolytic decomposition, even at physiological pH. The acylated analogues 1,3-dialkyl-3-acyltrizenes are much more stable in aqueous solution, but they also give rise to alkyldiazonium ions. Four acylated 1,3-dimethyltriazenes, where the acyl groups were diethylphosphoryl (DMP), carbethoxy (DMC), acetyl (DMA), and N-methylcarbamoyl (DMM), were studied kinetically. Rate-pH profiles indicated that the acyl group had a profound effect on the mechanism of decomposition. The cytotoxic potential of all four compounds was studied in vitro by using the MTT-tetrazolium assay. The compounds had fair-to-good activity against some cell lines, particularly those deficient in methylation repair. In vivo assays of DMC and DMM against several tumor xenografts in nude mice showed promising activity for some cancers, particularly in the case of DMM. In vitro assays were also carried out on three 1-(2-chloroethyl)-3-methyl-3-acyltriazenes. The acyl groups were carbethoxy (CMC), acetyl (CMA), and N-methylcarbamoyl (CMM). The activity of these compounds largely paralleled that of bis(2-chloroethyl)-N-nitrosourea (BCNU), except for those cell lines which exhibited the Rem phenotype; triazenes were more active in those lines than BCNU. The in vivo activity of CMC, CMA, and CMM was tested in the P388 leukemia assay. All three were active but CMC and CMA proved to be rather toxic. CMM was well tolerated and was examined in several tumor xenografts in nude mice. Significant activity was found against MX-1 mammary carcinoma, against LX-1 small cell lung carcinoma, and particularly against LOX amelanotic melanoma, where complete cures were effected. The antineoplastic activity of the acyltriazenes is well-correlated with their chemical behavior.