gebhart/patrepeval huggingface dataset:
Predictive Modeling of Acoustic Signals From Thermoacoustic Power Sensors (TAPS) (2016)

Thermoacoustic Power Sensor (TAPS) technology offers the potential for self-powered, wireless measurement of nuclear reactor core operating conditions. TAPS are based on thermoacoustic engines, which harness thermal energy from fission reactions to generate acoustic waves by virtue of gas motion through a porous stack of thermally nonconductive material. TAPS can be placed in the core, where they generate acoustic waves whose frequency and amplitude are proportional to the local temperature and radiation flux, respectively. TAPS acoustic signals are not measured directly at the TAPS; rather, they propagate wirelessly from an individual TAPS through the reactor, and ultimately to a low-power receiver network on the vessel’s exterior. In order to rely on TAPS as primary instrumentation, reactor-specific models which account for geometric/acoustic complexities in the signal propagation environment must be used to predict the amplitude and frequency of TAPS signals at receiver locations. The reactor state may then be derived by comparing receiver signals to the reference levels established by predictive modeling. In this paper, we develop and experimentally benchmark a methodology for predictive modeling of the signals generated by a TAPS system, with the intent of subsequently extending these efforts to modeling of TAPS in a liquid sodium environment.
I. Letter to Dr. Sharpey, Sec. R. S., from Dr. Thomas Williams, F. R. S (1859)

Abstract In my paper entitled “Researches on the Structure and Homology of the Reproductive Organs of the Annelids,” lately published in the Philosophical Transactions, the following passage occurs in a note at page 113:— “Some of these demonstrations have been recently witnessed by Mr. Busk and Dr. Carpenter.” Some time after the publication of my paper, I received a letter from Mr. Busk, observing that when taken in connexion with the context, the above allusion to his name and that of Dr. Carpenter might lead to the supposition that they acquiesced in the views which I ventured to advocate in my paper.
Gelation versus liquid crystal phase transitions in suspensions of plate-like particles (2006)

Gelation is a common effect in aqueous suspensions of charged colloidal clay platelets at concentrations as low as 1 wt%. However, in systems of charged gibbsite [Al(OH)3] platelets, gelation can be delayed to concentrations as high as 50 wt% depending on the ionic strength. We investigated the phase behaviour of this system approaching the state of gelation in the delicate region between attractive and repulsive states that originate from competition between Coulomb repulsion and van der Waals attraction. As a function of the ionic strength, isotropic-nematic, nematic-columnar and isotropic-columnar phase separations were observed. Moreover, compression by gravitational forces allowed us to observe phase separation that is arrested by gelation in the homogeneous suspensions.
Crucial issues of multi-beam feed-back control with ECH/ECCD in fusion plasmas (2005)

Proof of principle of feed-back controlled Electron Cyclotron Heating and Current Drive (ECH/ECCD), aiming at automatic limitation (or suppression) of Neoclassical Tearing Modes amplitude, has been achieved in a number of present machines. In addition to Neoclassical Tearing Mode stabilization, more applications of well-localized ECH/ECCD can be envisaged (saw-tooth crash control, current profile control, thermal barrier control, disruption mitigation). However, in order to be able to take a step forward towards the application of these techniques to burning plasmas, some crucial issues should be more deeply analyzed: multi-beam simultaneous action, control of deposition radii rdep, diagnostic of plasma reaction. So far the Electron Cyclotron Emission has been the most important tool to get localized information on plasma response, essential for both rdep and risland recognition, but its use in very hot burning plasmas within automatic control loops should be carefully verified. Assuming that plasma response is appropriately diagnosed, the next matter to be discussed concerns how to control rdep, since all techniques so far used, or proposed (plasma position, toroidal field, mechanical beam steering, gyrotron frequency tuning) have limitations or drawbacks. Finally, simultaneous multiple actions on many actuators (EC beams), concurring to automatic control of one single parameter (e.g. NTM amplitude) might be a challenging task for the controller, particularly in view of the fact that any effect of each beam becomes visible only when it is positioned very close to the right radius. All these interlinked aspects are discussed in the paper.
Prostaglandin synthesis. I. Improved synthesis through bicyclo[3.1.0]hexane intermediates (1973)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProstaglandin synthesis. I. Improved synthesis through bicyclo[3.1.0]hexane intermediatesRobert C. Kelly, Verlan. VanRheenen, I. Schletter, and M. D. PillaiCite this: J. Am. Chem. Soc. 1973, 95, 8, 2746–2747Publication Date (Print):April 1, 1973Publication History Published online1 May 2002Published inissue 1 April 1973https://pubs.acs.org/doi/10.1021/ja00789a089https://doi.org/10.1021/ja00789a089research-articleACS PublicationsRequest reuse permissionsArticle Views171Altmetric-Citations49LEARN 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
System Identification of Multistage Turbine Engine Rotors (2007)

Recently, an efficient approach for modeling the vibration of multistage rotors was developed by the authors [1, 2]. This reduced-order modeling technique employs component mode synthesis, with each stage (bladed disk) treated as a separate component. In addition, the component mode mistuning (CMM) projection technique was extended to multistage systems. In the CMM method, individual blade mistuning is transformed from a basis of cantilevered blade modes to the basis of tuned system modes used for the reduced-order model. In this paper, the component-based modeling framework developed for mistuned multistage turbine engine rotors is utilized for system identification. First, the identification of multistage mode types is considered. Strain energy ratios are used to identify which system modes are confined to mostly one stage and which modes show strong coupling among multiple stages. Simple approximations for these ratios are derived based on data from the component-level free response analysis that are performed during the model construction process. The component-level results are also utilized to identify the dominant nodal diameter number for each multistage mode, even though the multistage system does not possess cyclic symmetry because the stages have different numbers of blades. Second, the modes are further classified as to how much the blades participate in the response relative to the disk for each stage. As a systematic identification procedure, this is applicable to single-stage models as well. For multistage systems, this is used to determine operating conditions where coupled response among blades on adjacent stages is most likely to occur. Third, the application of mistuning identification techniques to multistage systems is considered. It is found that the proposed modal classification methods allow the determination of conditions under which deviations in individual blade properties may be observed indirectly from measurements of the disks and spacer.
A Network-Flow Technique for Finding Low-Weight Bounded-Degree Spanning Trees (1997)

Given a graph with edge weights satisfying the triangle inequality, and a degree bound for each vertex, the problem of computing a low-weight spanning tree such that the degree of each vertex is at most its specified bound is considered. In particular, modifying a given spanning treeTusingadoptionsto meet the degree constraints is considered. A novel network-flow-based algorithm for finding a good sequence of adoptions is introduced. The method yields a better performance guarantee than any previous algorithm. If the degree constraintd(v) for eachvis at least 2, the algorithm is guaranteed to find a tree whose weight is at most the weight of the given tree times 2 − min{(d(v) − 2)/(degT(v) − 2) : degT(v) > 2}, where degT(v) is the initial degree ofv. Equally importantly, it takes this approach to the limit in the following sense: if any performance guarantee that is solely a function of the topology and edge weights of a given tree holds foranyalgorithm at all, then it also holds for the given algorithm. Examples are provided in which no lighter tree meeting the degree constraint exists. Linear-time algorithms are provided with the same worst-case performance guarantee. ChoosingTto be a minimum spanning tree yields approximation algorithms with factors less than 2 for the general problem on geometric graphs with distances induced by variousLpnorms. Finally, examples of Euclidean graphs are provided in which the ratio of the lengths of an optimal Traveling Salesman path and a minimum spanning tree can be arbitrarily close to 2.
Serum and Plasma Proteomics (2007)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSerum and Plasma ProteomicsHaleem J. Issaq, Zhen Xiao, and Timothy D. VeenstraView Author Information Laboratory of Proteomics and Analytical Technologies, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, P.O. Box B, Frederick, Maryland 21702 Cite this: Chem. Rev. 2007, 107, 8, 3601–3620Publication Date (Web):July 18, 2007Publication History Received28 March 2007Published online18 July 2007Published inissue 1 August 2007https://pubs.acs.org/doi/10.1021/cr068287rhttps://doi.org/10.1021/cr068287rresearch-articleACS PublicationsCopyright © 2007 American Chemical SocietyRequest reuse permissionsArticle Views6108Altmetric-Citations236LEARN 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 SUBJECTS:Chromatography,Peptides and proteins,Protein identification,Proteomics,Serum Get e-Alerts
The nutritional status of the aging; public health aspects. (1951)

In preliminary analysis of nutritional, physical and laboratory data obtained in a study of 577 persons 50 years of age and over in San Mateo County, a number of factors of possible significance were noted. Of the 577 persons examined, 243 were referred to private physicians for a total of 377 conditions requiring attention. Obesity and hypertension were the most common causes for referral. More women than men were overweight. Anemia was noted more often in women than in men. Serious anemia was of higher incidence in the higher age brackets. In a number of cases in which there was high glucose content in the blood there was no trace of sugar in the urine. Abnormally low content of ascorbic acid in the blood was of high incidence among persons of low income, of lesser incidence in the middle income group, and did not occur in persons in the high income group.
Learning Semi-Markovian Causal Models using Experiments (2006)

Mycorrhizal Medicago showed improved atrazine degradation within the culturing medium and increased atrazine enrichment in the roots and stems. Additionally, AMF increased the plant root response to atrazine, with relevant enzymes up regulated and toxic effects alleviated. Overall, the findings of this study show that AMF played an important role in easing atrazine stress in plants and contributed to atrazine remediation and further contributed to the understanding of the molecular mechanism associated with atrazine stresses and potential mycorrhizal contributions in M.sativa.
Reversal of <i>in vitro</i> T cell clonal anergy by IL-2 stimulation (1992)

Stimulation of a normal type I mouse T helper cell clone (TH1) with concanavalin A in the absence of antigen presenting cells (APC) in vitro results in the induction of a hyporesponsive state known as T cell clonal anergy. This state is characterized by a decrease in proliferation following stimulation with antigen and APC resulting from a decrease in the production of IL-2. Production of the lymphokines IL-3/granulocyte macrophage colony stimulating factor and IFN-gamma is also reduced, although to a lesser degree. Stimulation of such anergic cells with IL-2 results in proliferation and a complete reversal of the state. We demonstrate that this reversal is not due to the outgrowth of a subpopulation of cells that had escaped anergy induction, but rather occurs in all the cells. Anergy also dissipated spontaneously, although much more slowly, in the absence of T cell antigen receptor occupancy. Finally, we show that a similar state can be produced by normal activation with antigen and APC if IL-2 and other factors are removed at 16-20 h. These results indicate that the anergic state is not a permanent change in the TH1 cell. Anergy induction appears to be a consequence of the inability of the cell to divide extensively following stimulation through the antigen-specific receptor. We propose a model to explain these results in terms of a relatively stable negative regulatory factor.
Secure computation of linear functions over linear discrete multiple-access wiretap channels (2016)

In this paper, a joint source-channel coding approach is taken to the problem of securely computing a function of distributed sources over a multiple-access wiretap channel that is linear with respect to a finite field. It is shown that if the joint source distribution fulfills certain conditions and the function to be computed matches the linear structure of the channel, secrecy comes for free in the sense that the fundamental limit (i.e., the secrecy computation-capacity) is achieved without the need for stochastic encoding. Furthermore, the legitimate receiver does not need any advantage over the eavesdropper, which is in stark contrast to standard physical-layer security results.
ChemInform Abstract: ELEKTROCHEMISCHE FLUORIERUNG VON ALKOXYCARBONSAEUREN (1975)

Abstract Die Elektrofluorierung der Alkoxycarbonsäuren (I) (oder auch entsprechender Alkoxycarbonsäureanhydride) in technischem wasserfreiem HF bei 10°C (Ni‐Anode; Stahlkathode) liefert Gemische (Ausbeute l4‐4l%; Stromausbeute 10‐15%) der Perfluorsäurefluoride (II)‐(IV).
Alcohol adducts of alkoxides: intramolecular hydrogen bonding as a general structural feature (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlcohol adducts of alkoxides: intramolecular hydrogen bonding as a general structural featureBrian A. Vaartstra, John C. Huffman, Peter S. Gradeff, Liliane G. Hubert-Pfalzgraf, Jean Claude Daran, Stephen Parraud, Kenan Yunlu, and Kenneth G. CaultonCite this: Inorg. Chem. 1990, 29, 17, 3126–3131Publication Date (Print):August 1, 1990Publication History Published online1 May 2002Published inissue 1 August 1990https://pubs.acs.org/doi/10.1021/ic00342a014https://doi.org/10.1021/ic00342a014research-articleACS PublicationsRequest reuse permissionsArticle Views741Altmetric-Citations158LEARN 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
Cardiovascular reflexes elicited by passive gastric distension in anesthetized cats (1981)

Hemodynamic responses to passive gastric distension were examined in alpha-chloralose anesthetized cats. Gastric balloons were distended with 37 degrees C fluid at slow (50 ml/min) and rapid (250 ml/min) infusion rates before and after laparotomy. Passive gastric distension at the slow infusion rate significantly (P less than 0.05) increased mean arterial pressure (MAP) by 28%, dP/dt at 40 mmHg developed pressure by 29%, and systemic vascular resistance (SVR) by 35%. Likewise, the rapid distension rate significantly (P less than 0.05) increased MAP (20%), dP/dt (16%), and SVR (23%). Heart rate, aortic flow, and left ventricular end-diastolic pressure remained unchanged at both distension rates. Cardiovascular responses to passive gastric distension were similar before and after laparotomy. Section of the vagus nerve at the diaphragm did not alter the responses, whereas abdominal splanchnic nerve section significantly (P less than 0.05) reduced the changes in mean arterial pressure and dP/dt. These results indicate that passive gastric distension in the cat elicits cardiovascular reflexes sufficient to increase myocardial oxygen demand. Such a reflex response could potentially contribute to postprandial angina in humans.
Abstract A86: Prostate cancer risk allele specific for African descent correlates with pathologic stage at prostatectomy (2009)

Purpose: A region on chromosome 8q24 was recently identified as a novel prostate cancer (CaP) risk locus. Inherited variation in this region is associated with CaP risk in the general population (21–58%) and specific alleles show a strong association in African American (AA) men. This study was designed to evaluate associations between 8q24 risk alleles and clinical variables, such as pathologic stage, age at diagnosis and recurrence in a case series of AA men. Experimental Design: Peripheral blood DNA samples from 114 AA men with CaP, including 106 who had undergone radical prostatectomy (RP), were genotyped for 6 SNPs on three 8q24 regions. The presence of these SNPs was compared with clinico-pathologic and follow-up data after RP. Results: The mean age of diagnosis and follow-up time were 57.4 years (±8.9) and 49.1 months (±31.6), respectively. Patients carrying the Broad11934905 A risk allele, which is specific for African ancestry, were more likely to have a higher pathologic stage (pT3–4) than individuals with the wild type (OR = 4.478, 95% CL: 1.418–14.140, p = 0.01068). A trend toward increased frequency of and shorter time to biochemical recurrence was noted in patients with this risk allele on Kaplan-Meier (KM) unadjusted survival analysis (p = 0.0762). Conclusions: The Broad11934905 polymorphism at 8q24, which is only found in people of African ancestry, is associated with an increase in non-organ confined CaP at prostatectomy. Also, for those with this risk allele, there is a trend toward early biochemical recurrence that requires validation in larger studies.
Lightning impulse (LI) breakdown testing of a rubber-epoxy interface (2017)

The lightning impulse (LI) breakdown strength of a rubber-epoxy interface was measured using a test cell developed earlier for AC breakdown testing. The electrically active length of the rubber-epoxy interface in the test cell was about 10 mm. The rubber was compressed and the pressure in the rubber-epoxy interface was controlled and measured. It was shown that the test cell performed well under LI breakdown testing with the majority of the breakdowns located at the rubber-epoxy interface as desired and not in the bulk insulation. A higher LI breakdown strength was obtained for smoother epoxy surfaces.
Gestión y Política Pública (2012)

Resumen es: Este trabajo revisa el uso de los modelos de microsimulacion como instrumentos para el analisis de politicas publicas. Esta metodologia, planteada inicia...
Modeling, Planning, and Control of Complex Logistic Processes (2015)

1Department of Engineering, Faculty of Engineering and Science, University of Agder, 4898 Grimstad, Norway 2College of Engineering, University of Wisconsin System, Madison, WI, USA 3ArcelorMittal Bremen GmbH, Bremen, Germany 4BIBA-Bremer Institut fur Produktion und Logistik GmbH, Planning and Control of Production Systems (PSPS), University of Bremen, Hochschulring 20, 28359 Bremen, Germany 5University of Picardie Jules Verne, MIS-UPJV, 7 Moulin Neuf, 80000 Amiens, France
Quantum Noise in a Parametric Amplifier with Lossy Modes (1964)

We derive the fundamental noise properties of a parametric amplifier (paramp) which is driven by a monochromatic pump but which has many lossy signal and idler modes. We use a quantum-mechanical approach similar to that employed by Louisell and co-workers in their treatment of paramps and lasers with lossless modes. Our results are not directly deducible from the lossless mode analysis, but they do give the same limiting noise temperature as that analysis. This minimum noise temperature is the same as that of an ideal laser. In fact, we find that one can always design a laser whose field correlation functions would be the same as those of any given paramp. Many results for laser noise in various configurations can be carried over directly and applied to parametric amplifiers by using correspondence substitutions which we set down. For example, in analogy to Pound's description of the maser (in terms of a Nyquist theorem extended to negative temperatures), the calculation of paramp noise is found to be equivalent to applying Nyquist's theorem to both the active and passive elements in the (classically computed) equivalent circuit of a signal mode of interest. From this one obtains the spectra of effective noise generators which, when amplified in the circuit, duplicate the "quantum" as well as thermal noise that is present in the output. The Nyquist theorem is extended to apply to each active element by simply taking the element temperatures to be minus the real temperature of the corresponding idler mode (whose parametric coupling into the signal circuit gives rise to that element) multiplied by the ratio of the pump minus the idler to the idler frequencies.