7,354 research outputs found
Hydroxy-terminated polyether binders for composite rocket propellants
No full textPropellants based on cross-linked Hydroxy Terminated PolyEther (HTPE) binders are
being used as alternatives to Hydroxy Terminated PolyButadiene (HTPB) compositions.
HTPE propellants have similar mechanical properties to HTPB propellants but they give
a less severe response in ‘slow cook-off’ tests for IM compliance. A literature review is
presented on the development and properties of HTPE propellants in an attempt to place
them in relation to recent trends in Insensitive Munitions. To gain a better understanding
of the behaviour of HTPE propellants an HTPE pre-polymer and a range of binder
network samples with different NCO/OH equivalence ratios, with and without
plasticizer, have been synthesised and characterised by a range of techniques. The
thermal decomposition of the HTPE binder network and propellant samples were also
studied. Desmodur N-3200 was used as a curing agent and n-BuNENA as an energetic
plasticizer. Similar analyses were performed on analogous HTPB pre-polymer and
binder network samples and the results were compared with those obtained for the
corresponding HTPE samples. Two kinds of HTPE propellant were manufactured
containing HTPE pre-polymer, n-BuNENA, 2NDPA and either AP or AP+PSAN as
oxidiser. Also HTPB propellant was prepared. Small cook-off test vehicles (SCTV)
were filled with HTPE and HTPB propellants and slow cook-off tests were performed.
In contrast to HTPB binders, which become harder during slow heating, it was found
that the HTPE binders soften under the same conditions. This behaviour is possibly due
to chain scission of the soft and hard segments of the HTPE polymer matrix. Thermooxidative
processes and reactions of the energetic plasticizer decomposition products
are believed to be the responsible for the scission of the polymeric matrix. From the
binder characterisation and slow cook-off results it is concluded that there is a relation
between the degree of polymeric matrix scission during slow heating and the violence
of the response at the point of self ignition. This underlies the main difference between
HTPB and HTPE propellants in slow cook-off. While HTPB compositions become
harder and more brittle, HTPE propellants become softer and have a lower surface area
at the self ignition point
A Conversation with Xianghong Feng, Author of Tourism and Prosperity in Miao Land
No full textIn this installment of Lexington Books\u27 Anthropology of Tourism: Heritage, Mobility and Society Author Conversations, series editor Michael A. Di Giovine talks to anthropologist Xianghong Feng, author of the book, Tourism and Prosperity in Miao Land: Power and Inequality in Rural China. With rich ethnographic detail, Feng focuses on the intersection of tourism development, power and inequality in the southern interior of China. Capital-intensive, elite-driven tourism has reshaped the social and cultural patterns of the ethnic Miao. Although tourism is often touted as able to empower women, lower classes, and minorities, Feng shows that often it reinforces the very power structures that it attempts to equalize
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No full textThis is a curious book. The verso of the title-page says simply "Reprinted from the 1953 edition." From all I can learn, that is true, but that original was printed not by the University Press of the Pacific but by the Foreign Languages Press in Beijing. Indeed, it seems as though this book is a photocopy reprint of that original, and so even the page references in my comment on that book still apply here. These fables are often directly admonitory and/or of a highly political slant. Thus the author writes of skylarks "Poets like these are the true friends of the people" (6). The best of the fables, I believe, are "The Snake and the Rabbit" (42) and "The Original Rat" (61), which may also have the best illustration. Among the most overtly political are those on the imperialist weasel munching a duckling (27) and the imperialist snake against the collective bees (29). Other good fables include "The Hunter and His Wife" (12), "The Lion and the Setting Sun" (15), "The Lion and the Lamb" (34), "The Fox and the Rabbits' Farm" (39), "The Cow and Her Rope" (53), "The Curious Crow" (44), and "The Cow and Her Calf" (54). There is a T of C at the front after the highly political "Publisher's Note." 7½" x 9¼".Feng Hsueh-feng, translated by Gladys Yan
A translation comparison of stray birds between Zheng Zhenduo’s version and Feng Tang’s version : from the perspective of manipulation theory
No full textThis paper employed Lefevere’s Manipulation Theory to explain respectively how
three main factors of Manipulation Theory, namely patronage, ideology and poetics
controlled Zheng Zhenduo’s and Feng Tang’s translation activity of Tagore’s Stray
Birds. And then the paper will analyze their translation strategies by comparing
certain poems in Stray Birds. However, author of this paper did not aim to reconfirm
Lefevere’s Manipulation Theory, but under his theoretical framework, tried to
interpret translation phenomenon from an extra-linguistic perspective.
Through analysis and comparison, the importance of three core elements was
different in those two versions. For Zheng Zhenduo, three main elements shared equal
impacts on his translation. His individual ideology and poetics conformed to
prevailing ideology and poetics in those days, and his patronage also exerted a
positive influence, therefore his Stray Birds received favorable reviews.
In Feng Tang’s case, individual poetics played the most important role. Although his
poetics reflected literary trends to some extent, but that is still not the mainstream in
today’s literary market. The translator’s subjectivity in Feng’s version was clearly
stronger than Zheng’s. For the purpose of literary innovation and commercial interests,
patronage did not manipulate Feng’s translation too much. As a result, Feng Tang’s
Stray Birds was forced to stop sales.
Key words: Zheng Zhenduo; Feng Tang; Stray Birds; Manipulation TheoryMaster of Art
Fables: Feng Hsueh-feng
No full textOnce this book arrived, I thought it a repeat of something I already have. Closer inspection shows that I have a softbound second edition of 1955, while this is the first edition of 1953. Apparently the order of fables changed significantly in the second edition, though there are fifty-one fables here as there. As I mention there, the fables are often directly admonitory and/or of a highly political slant. Thus the author writes of skylarks ”Poets like these are the true friends of the people” (6). The best of the fables, I believe, are ”The Snake and the Rabbit (42) and ”The Original Rat” (61), which may also have the best illustration. Among the most overtly political are those on the imperialist weasel munching a duckling (27) and the imperialist snake against the collective bees (29). Other good fables include ”The Hunter and His Wife” (12), ”The Lion and the Setting Sun” (15), ”The Lion and the Lamb” (34), ”The Fox and the Rabbits' Farm” (39), ”The Cow and Her Rope” (53), ”The Curious Crow” (44), and ”The Cow and Her Calf” (54). There is a T of C at the front.This is a hardbound book (hard cover)Original language: chiStated first editionFeng Hsueh-Feng, translated by Gladys Yan
To comply or not to comply: understanding the discretion in reporting public float and SEC regulations
No full textThis paper documents how firms exercise discretion in defining affiliates and reporting public float in response to SEC regulations. I find that firms with higher expected compliance costs under Section 404 of the Sarbanes-Oxley Act (SOX) of 2002 tend to classify more shares as affiliated and report lower public float. In contrast, firms issuing seasoned equity are less likely to underreport public float, possibly due to favorable regulatory treatment for large issuers. These incentives are weakened when future regulatory changes render float less important.Peer reviewe
[[alternative]]A Study of The Effects of the Traditional concept of Feng-Shui To the modern Engineering Behavior.
No full text[[abstract]]This research discusses about Feng-Shui and its effect to interior design. The study focuses on the related concepts and attitude toward general people. The researcher applies several analyses, including average, standard deviation, and variance analysis to the answers retrieved from subjects participating in the survey of "Relevant Attitude toward Feng-Shui and Engineering Behavior."
The analyses are proceeded in both the overall and separated layers' prospect. The results are as following:
1. To general people, there is no difference between gender and the degree of being influenced by the concept of Feng-Shui.
2. To general people, the cognitive attitude toward Feng-Shui develops when they age.
3. The higher education general people get, the more cognitive attitude toward Feng-Shui they have.
4. The concept of Feng-Shui shows no relevant difference among the Catholics, the Christians, or atheists while it relevantly influences people who believe in the folk religion, Taoism, or Buddhism.
5. People who ask Feng-Shui are relevantly influenced by the concept of Feng-Shui.
Mizoguchi-Takahashi local contractions to Feng-Liu contractions
No full text[EN] In this article, we establish that any uniformly local Mizoguchi-Takahashi contraction is actually a set-valued contraction due to Feng and Liu on a metrically convex complete metric space. Through an example, we demonstrate that this result need not hold on any arbitrary metric space. Furthermore, when the metric space is compact, we derive that any Mizoguchi-Takahashi local contraction and Nadler local contraction are equivalent. Moreover, a result related to invariant best approximation is established.The first author would like to acknowledge the Ministry of Human Resource Development, India for providing financial assistance during the research work. The second author acknowledges Science and Engineering Research Board (SERB), India for the financial support under (MTR/2021/000164).Maiti, P.; Sultana, A. (2024). Mizoguchi-Takahashi local contractions to Feng-Liu contractions. Applied General Topology. 25(2):321-329. https://doi.org/10.4995/agt.2024.19619OJS32132925
Khwamchua ruang Feng-shui thi wang na
No full textIn this article, the author argues that the Second King's palace, widely known in Thai as ""wang na"", was decorated with several stone lion statues because of the belief in Feng-shui --a system of spirit influences for good and evil believed by the Chinese to attend the natural features of landscape. The statues were assumed to help preventing natural disasters, as the palace was located on the river shore
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