scholarly journals Planck intermediate results

2018 ◽  
Vol 619 ◽  
pp. A94 ◽  
Author(s):  
◽  
Y. Akrami ◽  
F. Argüeso ◽  
M. Ashdown ◽  
J. Aumont ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Mexican Hat Wavelet ◽  
Mexican Hat ◽  
The Matrix ◽  
Statistical Studies ◽  
Sky Temperature ◽  
The One ◽  
Temperature Maps ◽  
Thermal Sources ◽  
Compact Sources

This paper presents the Planck Multi-frequency Catalogue of Non-thermal (i.e. synchrotron-dominated) Sources (PCNT) observed between 30 and 857 GHz by the ESA Planck mission. This catalogue was constructed by selecting objects detected in the full mission all-sky temperature maps at 30 and 143 GHz, with a signal-to-noise ratio (S/N)> 3 in at least one of the two channels after filtering with a particular Mexican hat wavelet. As a result, 29 400 source candidates were selected. Then, a multi-frequency analysis was performed using the Matrix Filters methodology at the position of these objects, and flux densities and errors were calculated for all of them in the nine Planck channels. This catalogue was built using a different methodology than the one adopted for the Planck Catalogue of Compact Sources (PCCS) and the Second Planck Catalogue of Compact Sources (PCCS2), although the initial detection was done with the same pipeline that was used to produce them. The present catalogue is the first unbiased, full-sky catalogue of synchrotron-dominated sources published at millimetre and submillimetre wavelengths and constitutes a powerful database for statistical studies of non-thermal extragalactic sources, whose emission is dominated by the central active galactic nucleus. Together with the full multi-frequency catalogue, we also define the Bright Planck Multi-frequency Catalogue of Non-thermal Sources (PCNTb), where only those objects with a S/N >  4 at both 30 and 143 GHz were selected. In this catalogue 1146 compact sources are detected outside the adopted Planck GAL070 mask; thus, these sources constitute a highly reliable sample of extragalactic radio sources. We also flag the high-significance subsample (PCNThs), a subset of 151 sources that are detected with S/N >  4 in all nine Planck channels, 75 of which are found outside the Planck mask adopted here. The remaining 76 sources inside the Galactic mask are very likely Galactic objects.

Preparation of Electron Transparent Metal-Matrix Composites

1968 ◽  
Vol 26 ◽  
pp. 334-335 ◽  
Author(s):  
M. R. Pinnel ◽  
A. Lawley
Keyword(s):  
Stainless Steel ◽  
Load Transfer ◽  
Volume Fraction ◽  
Steel Wire ◽  
Initial Step ◽  
Interfacial Region ◽  
Matrix Composites ◽  
Specific Test ◽  
The Matrix ◽  
The One

Numerous phenomenological descriptions of the mechanical behavior of composite materials have been developed. There is now an urgent need to study and interpret deformation behavior, load transfer, and strain distribution, in terms of micromechanisms at the atomic level. One approach is to characterize dislocation substructure resulting from specific test conditions by the various techniques of transmission electron microscopy. The present paper describes a technique for the preparation of electron transparent composites of aluminum-stainless steel, such that examination of the matrix-fiber (wire), or interfacial region is possible. Dislocation substructures are currently under examination following tensile, compressive, and creep loading. The technique complements and extends the one other study in this area by Hancock.The composite examined was hot-pressed (argon atmosphere) 99.99% aluminum reinforced with 15% volume fraction stainless steel wire (0.006″ dia.).Foils were prepared so that the stainless steel wires run longitudinally in the plane of the specimen i.e. the electron beam is perpendicular to the axes of the wires. The initial step involves cutting slices ∼0.040″ in thickness on a diamond slitting wheel.

Adaptive identification methods of nonlinear random electrical signal

2020 ◽  
Vol 64 (1-4) ◽  
pp. 431-438
Author(s):  
Jian Liu ◽  
Lihui Wang ◽  
Zhengqi Tian
Keyword(s):  
Wavelet Transform ◽  
Electric Vehicle ◽  
Signal To Noise Ratio ◽  
Sudden Change ◽  
Electrical Signal ◽  
Signal Recognition ◽  
State Variable ◽  
Signal Characteristics ◽  
The Matrix ◽  
Kalman Filter Algorithm

The nonlinearity of the electric vehicle DC charging equipment and the complexity of the charging environment lead to the complex and changeable DC charging signal of the electric vehicle. It is urgent to study the distortion signal recognition method suitable for the electric vehicle DC charging. Focusing on the characteristics of fundamental and ripple in DC charging signal, the Kalman filter algorithm is used to establish the matrix model, and the state variable method is introduced into the filter algorithm to track the parameter state, and the amplitude and phase of the fundamental waves and each secondary ripple are identified; In view of the time-varying characteristics of the unsteady and abrupt signal in the DC charging signal, the stratification and threshold parameters of the wavelet transform are corrected, and a multi-resolution method is established to identify and separate the unsteady and abrupt signals. Identification method of DC charging distortion signal of electric vehicle based on Kalman/modified wavelet transform is used to decompose and identify the signal characteristics of the whole charging process. Experiment results demonstrate that the algorithm can accurately identify ripple, sudden change and unsteady wave during charging. It has higher signal to noise ratio and lower mean root mean square error.

scholarly journals Divergent ⇒ complex amplitudes in two dimensional string theory

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Ashoke Sen
Keyword(s):  
Scattering Amplitudes ◽  
String Theory ◽  
Matrix Model ◽  
Two Dimensional ◽  
Full Matrix ◽  
Instanton Contribution ◽  
The Matrix ◽  
Theory Result ◽  
The One ◽  
Remarkable Agreement

Abstract In a recent paper, Balthazar, Rodriguez and Yin found remarkable agreement between the one instanton contribution to the scattering amplitudes of two dimensional string theory and those in the matrix model to the first subleading order. The comparison was carried out numerically by analytically continuing the external energies to imaginary values, since for real energies the string theory result diverges. We use insights from string field theory to give finite expressions for the string theory amplitudes for real energies. We also show analytically that the imaginary parts of the string theory amplitudes computed this way reproduce the full matrix model results for general scattering amplitudes involving multiple closed strings.

scholarly journals Exenatide Microspheres for Monthly Controlled-Release Aided by Magnesium Hydroxide

Pharmaceutics ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 816
Author(s):  
Yuxuan Ge ◽  
Zhenhua Hu ◽  
Jili Chen ◽  
Yujie Qin ◽  
Fei Wu ◽  
...  
Keyword(s):  
Controlled Release ◽  
Dosage Form ◽  
Continuous Phase ◽  
Plga Microspheres ◽  
Receptor Agonists ◽  
Monkey Model ◽  
The Matrix ◽  
Glass Membrane ◽  
The One ◽  
Long Acting

GLP-1 receptor agonists are a class of diabetes medicines offering self-regulating glycemic efficacy and may best be administrated in long-acting forms. Among GLP-1 receptor agonists, exenatide is the one requiring the least dose so that controlled-release poly(d, l-lactic-co-glycolic acid) (PLGA) microspheres may best achieve this purpose. Based on this consideration, the present study extended the injection interval of exenatide microspheres from one week of the current dosage form to four weeks by simply blending Mg(OH)2 powder within the matrix of PLGA microspheres. Mg(OH)2 served as the diffusion channel creator in the earlier stage of the controlled-release period and the decelerator of the self-catalyzed degradation of PLGA (by the formed lactic and glycolic acids) in the later stage due to its pH-responsive solubility. As a result, exenatide gradually diffused from the microspheres through Mg(OH)2-created diffusion channels before degradation of the PLGA matrix, followed by a mild release due to Mg(OH)2-buffered degradation of the polymer skeleton. In addition, an extruding–settling process comprising squeezing the PLGA solution through a porous glass membrane and sedimentation-aided solidification of the PLGA droplets was used to prepare the microspheres to ensure narrow size distribution and 95% encapsulation efficiency in an aqueous continuous phase. A pharmacokinetic study using rhesus monkey model confirmed the above formulation design by showing a steady blood concentration profile of exenatide with reduced CMAX and dosage form index. Mg·(OH)2

Human Rights as Land Rights in the Pacific

1993 ◽  
Vol 6 (1) ◽  
pp. 61-80 ◽  
Author(s):  
John D'Arcy May
Keyword(s):  
Human Rights ◽  
Case Studies ◽  
Papua New Guinea ◽  
Land Rights ◽  
Human Community ◽  
The Earth ◽  
The Pacific ◽  
West Papua ◽  
The Matrix ◽  
The One

Do human rights in their conventional, Western understanding really meet the needs of Pacific peoples? This article argues that land rights are a better clue to those needs. In Aboriginal Australia, Fiji, West Papua and Papua New Guinea, case studies show that people's relationship to land is religious and implicitly theological. The article therefore suggests that rights to land need to be supplemented by rights of the land extending to the earth as the home of the one human community and nature as the matrix of all life.

Counting on Relief: Industrializing the Statistical Interviewer during the New Deal

2011 ◽  
Vol 24 (2) ◽  
pp. 281-310 ◽  
Author(s):  
Emmanuel Didier
Keyword(s):  
United States ◽  
New Deal ◽  
White Collar ◽  
The United States ◽  
The Other ◽  
Other Hand ◽  
White Collar Workers ◽  
Statistical Studies ◽  
The One ◽  
The New Deal

ArgumentWhen the New Deal administration attained power in the United States, it was confronted with two different problems that could be linked to one another. On the one hand, there was a huge problem of unemployment, affecting everybody including the white-collar workers. And, on the other hand, the administration suffered from a very serious lack of data to illuminate its politics. One idea that came out of this situation was to use the abundant unemployed white-collar workers as enumerators of statistical studies. This paper describes this experiment, shows how it paradoxically affected the professionalization of statistics, and explains why it did not affect expert democracy despite its Deweysian participationist aspect.

THE BACK-PROJECTION METHOD FOR CONSTRUCTING 3D NON-TENSOR PRODUCT MOTHER WAVELETS AND THE APPLICATION IN IMAGE EDGE DETECTION

2012 ◽  
Vol 10 (03) ◽  
pp. 1250026 ◽  
Author(s):  
LI ZENG ◽  
JIQIANG GUO ◽  
CHENCHENG HUANG
Keyword(s):  
Tensor Product ◽  
Computational Cost ◽  
Three Dimension ◽  
Back Projection ◽  
Mother Wavelet ◽  
3D Images ◽  
Mexican Hat Wavelet ◽  
Mexican Hat ◽  
Directional Wavelets ◽  
Mother Wavelets

In this paper, a non-tensor product method for constructing three-dimension (3D) mother wavelets by back-projecting two dimension (2D) mother wavelets is presented. We have proved that if a 2D mother wavelet satisfies certain conditions, the back-projection of the 2D mother wavelet is a 3D mother wavelet. And the construction instances of 3D Mexican-hat wavelet and 3D Meyer wavelet are given. These examples imply that we can get some new 3D mother wavelets from known 1D or 2D mother wavelets by using back-projecting method. This method inaugurates a new approach for constructing non-tensor product 3D wavelet. In addition, the non-tensor product 3D Mexican-hat wavelet is used for detecting the edge of two 3D images in our experimental section. Compared with the Mallat's maximum wavelet module approach which uses 3D directional wavelets, experimental results show it can obtain better outcome especial for the edge which the orientation is not along the coordinate axis. Furthermore, the edge is more fine, and the computational cost is much smaller. The non-tensor product mother wavelets constructed by using the method of this paper also can be widely used for compression, filtering and denoising of 3D images.

Religious Syncretism and Art in the Nineteenth and Twentieth Centuries

2021 ◽  
Author(s):  
Ori Soltes
Keyword(s):  
18Th Century ◽  
Colonial Era ◽  
Religious Traditions ◽  
The Matrix ◽  
Religious Perspectives ◽  
Religious Syncretism ◽  
Spiritual Perspectives ◽  
The 1960S ◽  
The One ◽  
Anti Jewish

Religious and cultural syncretism, particularly in visual art in the Jewish and Christian traditions since the 19th century, has expressed itself in diverse ways and reflects a broad and layered series of contexts. These are at once chronological—arising out of developments that may be charted over several centuries before arriving into the 19th and 20th centuries—and political, spiritual, and cultural, as well as often extending beyond the Jewish–Christian matrix. The specific directions taken by syncretism in art is also varied: it may be limited to the interweave of two religious traditions—most often Jewish and Christian—in which most often it is the minority artist seeking ways to create along lines consistent with what is created by the majority. It may also interweave three or more traditions. It may be a matter of religion alone, or it may be a matter of other issues, such as culture or gender, which may or may not be obviously intertwined with religion. The term “syncretism” has, in certain specifically anthropological and theological circles, acquired a negative connotation. This has grown out of the increasing consciousness, since the 1960s, of the political implications of that term in the course of Western history, in which hegemonic European Christianity has addressed non-Christian religious perspectives. This process intensified in the Colonial era when the West expanded its dominance over much of the globe. An obvious and particularly negative instance of this is the history of the Inquisition as it first affected Jews in late-15th-century Spain and later encompassed indigenous peoples in the Americas, Asia, and Africa. While this issue is noted—after all, art has always been interwoven with politics—it is not the focus of this article. Instead “syncretism” will not be treated as a concept that needs to be distinguished from “hybridization” or “hybridity,” although different modes of syncretism will be distinguished. Syncretistic preludes to visual artists in the 19th and 20th centuries, suggesting some of the breadth of possibility, include Pico della Mirandola, Kabir, and Baruch/Benedict Spinoza. Specific religious developments and crises in Europe from the 16th century to the 18th century brought on the emancipation of the Jews in some places on the one hand, and a contradictory continuation of anti-Jewish prejudice on the other, the latter shifting from a religious to a racial basis. This, together with evident paradoxes regarding secular and spiritual perspectives in the work of key figures in the visual arts, led to a particularly rich array of efforts from Jewish artists who revision Jesus as a subject, applying a new, Jewishly humanistic perspective to transform this most traditional of Christian subjects. Such a direction continued to spread more broadly across the 20th century. The Holocaust not only raised new visual questions and possibilities for Jewish artists, but also did so from the opposite direction for the occasional Christian—particularly German—artist. Cultural syncretism sometimes interweaves religious syncretism—which can connect and has connected Christianity or Judaism to Eastern religions—and a profusion of women artists in the last quarter of the century has added gender issues to the matrix. The discussion culminates with Siona Benjamin: a Jewish female artist who grew up in Hindu and Muslim India, attended Catholic and Zoroastrian schools, and has lived in America for many decades—all these aspects of her life resonate in her often very syncretistic paintings.

Martin Shapiro: An Appreciation

The Forum ◽  
2016 ◽  
Vol 14 (2) ◽  
Author(s):  
R. Shep Melnick
Keyword(s):  
Institutional Environment ◽  
Empirical Studies ◽  
The Political ◽  
Public Officials ◽  
Thick Description ◽  
Past Half Century ◽  
The Us ◽  
The Matrix ◽  
The One ◽  
Better Than

AbstractOver the past half century no judicial politics scholar has been more respected or influential than Martin Shapiro. Yet it is hard to identify a school of thought one could call “Shapiroism.” Rather than offer convenient methodologies or grand theories, Shapiro provides rich empirical studies that show us how to think about the relationship between law and courts on the one hand and politics and governing on the other. Three key themes run through Shapiro’s impressive oevre. First, rather than study courts in isolation, political scientists should view them as “one government agency among many,” and seek to “integrate the judicial system in the matrix of government and politics in which it actually operates.” Law professors may understand legal doctrines better than political scientists, but we know (or should know) the rest of the political system better than they do. Second, although judges inevitably make political decisions, their institutional environment leads them to act differently from other public officials. Most importantly, their legitimacy rests on their perceived impartiality within the plaintiff-defendant-judge triad. The conflict between judges’ role as impartial arbiter and enforcer of the laws of the regime can never be completely resolved and places powerful constraints on their actions. Third, the best way to understand the complex relationship between courts and other elements of the regime is comparative analysis. Shapiro played a major role in resuscitating comparative law, especially in his work comparing the US and the EU. All this he did with a rare combination of thick description and crisp, jargon-free analysis, certainly a rarity the political science of our time.

scholarly journals The Socioeconomic Bases of Biofuels Production Business at the Organizational Level

2021 ◽  
Vol 5 (520) ◽  
pp. 175-187
Author(s):  
R. V. Lohosha ◽  
◽  
I. A. Semchuk ◽  
Keyword(s):  
Business Processes ◽  
Raw Materials ◽  
Biofuel Production ◽  
Organizational Level ◽  
Technological Support ◽  
Agricultural Enterprises ◽  
Efficient Management ◽  
The Matrix ◽  
Scientific Substantiation ◽  
The One

The article is aimed at defining the priorities for the development of the biofuel market in Ukraine to ensure the energy security of the country and satisfy the country’s energy needs. Prospects for the bioenergy sector of the economy in the world will be determined primarily by the optimization of national policies in the matrix of multifarious criteria. The place of the Ukrainian model is highly likely to be determined, on the one hand, by the development of the national market, on the other hand, by the production of raw materials for world biofuel markets. At the same time, this market and production in Ukraine remains only a potentially promising model that requires a scientific substantiation for its efficiency. As a result of the study, it is specified that the bioenergy industry has serious limitations and problems of economic nature that require scientific substantiation. After analyzing the limitations and prospects of the industry development in Ukraine at the level of agricultural enterprises that could deploy biofuel production, it should be emphasized that: 1) there is currently no biofuel market in Ukraine: there is no significant production, hence the proposal still remains unformed; there are no agents (firms, enterprises) of the market that would form the established demand; the necessary norms, institutions, mechanisms of the representative market have not been developed; 2) there is no successful experience of such a business both in Ukraine in general and in agricultural enterprises in particular. From here, as well as taking into account the above-mentioned aspects, the attractiveness of this business, including investment, needs to be justified. Enterprises of this group will face funding problems, as well as technical and technological support problems. Therefore, special careful economic substantiation of the market efficiency model and business processes is required; 3) because of these reasons, the task of scientific substantiation of the model of efficient management of this business becomes highly topical.

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