Lower Palaeozoic trace fossils from eastern Newfoundland

1976 ◽  
Vol 13 (11) ◽  
pp. 1613-1633 ◽  
Author(s):  
Jan Bergström
Keyword(s):  
Short Review ◽  
Trace Fossils ◽  
The Other ◽  
Lower Palaeozoic ◽  
Local Geology ◽  
Conception Bay

Arthropod trace fossils are described from the Cambro-Ordovician sequence of Conception Bay. The sedimentological and ichnofaunal aspect is typical of an Acado-Mediterranean Province, but a few unique forms occur, including Rusophycus leifeirikssoni n. ichnosp. and R. cf. R. jenningsi. An effort is made to separate telopodite and exite scratches and to understand what kinds of trilobites were involved. Together with the description of the arthropod trace fossils, a list of the other trace fossils and short review of the local geology is given.

Total Productive Maintenance: Competing or Complementary to other Initiatives?

2013 ◽  
Vol 315 ◽  
pp. 472-476
Author(s):  
Adnan Hj. Bakri ◽  
Abdul Rahman Abdul Rahim ◽  
Noordin Mohd Yusof
Keyword(s):  
Large Scale ◽  
Manufacturing Industry ◽  
Short Review ◽  
The Other ◽  
Total Quality ◽  
Total Productive Maintenance ◽  
Quality Initiatives ◽  
Practical Applications ◽  
Manufacturing Organization

The objective of this short review paper is to examine the practical applications of Total Productive Maintenance (TPM) in the manufacturing industry. In this short review, an attempt was made to critically discuss the previous literatures related to TPM with the other established quality initiatives in the manufacturing, such as Total Quality Management (TQM) and Just-In-Time practice (JIT). This literature review-based research revealed an important research gaps related to TPM. The significance role of TPM as an important complementary to either TQM or JIT initiative is observed not been well addressed in the available literatures. Most of the researches available investigate these initiatives separately, focuses on the other element rather than addressing on the significant role of TPM as one of the main thrust. The separate implementation of such quality initiatives in the manufacturing organization means the requirement of large scale human, financial and technical resources as well the associated problems of running competing project in the company. The outcomes from this review justify the needs of further research in the area of TPM integration with other available initiatives, to further enhance its methodology aimed at solidifying its philosophy towards more realistic practical applications.

Determination of Relative Damping at Various Prestresses

1960 ◽  
Vol 33 (2) ◽  
pp. 282-301
Author(s):  
Th Kempermann ◽  
R. Clamroth
Keyword(s):  
Energy Loss ◽  
Phase Angle ◽  
Loss Factor ◽  
Short Review ◽  
The Other ◽  
Simple Function ◽  
History Of ◽  
Tan Δ ◽  
Special Case

Abstract After a short review of the history of the development of the concept of damping, the definitions—one in words, the other in the form of an equation—given in DIN 53513 are discussed, and their usefulness for measurements at various values of prestress is investigated. It is evident that the mathematical definition given in the Standard applies only in the special case when prestress and alternating stress are equal. For the complete range of prestress, the phase angle δ or some simple function of δ, such as the loss factor, tan δ, should be measured. If it is desired not to relinquish the percentage statement of the energy loss, then a new definition for the relative damping is proposed which is independent of the prestress, just as is tan δ. The dependence upon the prestress of the damping values under discussion is demonstrated in an experimental section, for various types of elastomers.

RSE-M - ASME XI - API 579: Comparison of Failure Assessment Diagrams (FAD)

2018 ◽  
Author(s):  
Claude Faidy
Keyword(s):  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Elastic Stress ◽  
Short Review ◽  
The Other ◽  
Ductile Tearing ◽  
Reference Stress ◽  
Failure Assessment ◽  
Tearing Resistance ◽  
Applied Stresses

After a short review of the 3 Codes in term of flaw evaluation, this paper will consider the Failure Assessment Diagrams (FAD) proposed in each of them. The cracked components are evaluated by a dedicated diagram for margin evaluation of ductile tearing resistance of the components: the elastic stress intensity factor of the crack normalized by the toughness of the material on one axis and the applied stresses normalized by a Reference Stress in the other axis. The 2017 Edition of RSE-M Appendix 5.4 and 5.6, the 2017 Edition of ASME XI Appendix H and the 2016 Edition of API 579 Part 9 will be used in this first comparison.

scholarly journals III.—On the Ballantrae Rocks of South Scotland and their Place in the Upland Sequence

1889 ◽  
Vol 6 (2) ◽  
pp. 59-69 ◽  
Author(s):  
Charles Lapworth
Keyword(s):  
The Other ◽  
Tectonic Structure ◽  
North West ◽  
South West ◽  
Other Hand ◽  
Lower Palaeozoic ◽  
The One ◽  
Great Simplicity ◽  
Northern Highlands

Next to the metamorphic region of the Northern Highlands there is perhaps no area in Britain where the strata have been so contorted and convulsed as in the great Lower Palæozoic region of the Southern Uplands of Scotland, and it is only by the zonal method of stratigraphy that these complexities can ever be successfully unravelled. So far as the present results of the application of that method enable us to judge, it appears that, underlying all these stratigraphical complexities, there is, in reality, a broad tectonic structure of great simplicity. For, if we make exception, on the one hand, of the lowest strata (the Ballantrae or Arenig rocks), which, as we have seen, only rise to the surface within the limits of the Ballantrae district; and on the other hand of the highest formations (Wenlock-Ludlow), which merely skirt the Upland plateau upon its north-west and south-west flanks, we find that almost the whole of the Lower Palæozoic strata of the Uplands are naturally grouped in two grand lithological terranes, viz. (I.) a Lower Terrane (Moffat Terrane), including strata ranging from the Upper Llandeilo to the Upper Llandovery; and (II.) an Upper Terrane (Gala or Queensberry Terrane), embracing strata generally of Tarannon age.

Geopolymer Application in Soil: A Short Review

2015 ◽  
Vol 754-755 ◽  
pp. 378-381 ◽  
Author(s):  
M.S. Abdullah ◽  
F. Ahmad ◽  
A.M. Mustafa Al Bakri
Keyword(s):  
Compressive Strength ◽  
Polymeric Material ◽  
Acid Resistance ◽  
Short Review ◽  
The Other ◽  
Polymer Concrete ◽  
Simple Explanation ◽  
Advance Research ◽  
Strength Result ◽  
Alkali Activated

Geopolymer is a well-known material names by Davidovit’s since 1970’s. The other names of geopolymer is alkali-activated cement, geocement, alkali-bonded ceramic, inorganic polymer concrete, and hydroceramic. In a simple explanation, the termed ‘geopolymers’ comes when the inorganic polymeric material synthesized in a manner similar to thermosetting organic polymers. The development and contribution of geopolymer to the industries are moving stage by stage until today. Since a decades, performance of Geopolymer has been evaluated and tested by researchers in many field. The result published showed the unique bonding between aluminosilicate and alkali solution produce high compressive strength, low shrinkage, resistance toward acid, resistance to fire and etc. Advance research showed the application of Geopolymer in civil engineering works (including structures and geotechnical) also giving a good strength result. To that extend, this paper try to review performances of geopolymer application in geotechnical fields.

Trace fossils in Ordovician radiolarian chert successions in the Southern Uplands, Scotland

2016 ◽  
Vol 107 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Yoshitaka Kakuwa ◽  
James D. Floyd
Keyword(s):  
Organic Matter ◽  
Trace Fossils ◽  
The Other ◽  
Ocean Bottom ◽  
Animal Life ◽  
Radiolarian Chert ◽  
Benthic Animal ◽  
Middle Ordovician ◽  
Firm Evidence ◽  
Benthic Animals

ABSTRACTRadiolarian chert and associated siliceous claystone in the Southern Uplands of Scotland are examined, in order to study the Great Ordovician Biodiversification Event of benthic animals on the pelagic ocean bottom. Trace fossils which are uncommon, but convincing, are found in the grey chert and siliceous claystone of Gripps Cleuch. These observations constitute firm evidence that large benthic animals which could leave visible trace fossils had colonised the Iapetan Ocean by the late Middle Ordovician, confirming previous studies from Australia for Panthalassa, the other huge ocean. Red chert is, however, a poor recorder of trace fossils, probably because the highly oxidising environment breaks down organic matter, both inhibiting high-density activity of large benthic animals and removing clear traces of benthic animal life.

scholarly journals A GEOCHEMICAL INVESTIGATION OF SOILS, APPLES AND LEAVES IN AGIA AREA, CENTRAL GREECE

2017 ◽  
Vol 50 (4) ◽  
pp. 2271
Author(s):  
K. Skordas ◽  
G. Papastergios ◽  
A. Filippidis ◽  
N. Kantiranis
Keyword(s):  
Clay Minerals ◽  
Major Elements ◽  
Average Concentration ◽  
The Other ◽  
Central Greece ◽  
Other Hand ◽  
Local Geology ◽  
Geochemical Investigation ◽  
Relationship Of ◽  
The Relationship

Forty two soil, apple and leaf samples from Agia area, central Greece, were collected and analyzed for their content in 7 major elements (Ca, Fe, K, Mg, Na, NP and S). The average concentration of the determined elements follows the Norder: concentration in soils > concentration in leaves > concentration in apples. Elements, such as Fe that is found enriched in the soils of the study area, due to local geology, is not correlated with its concentrations in apples and leaves, possibly because of its association with resistant minerals. On the other hand, the relationship of some elements (i.e., K, P, S) that are constituents of the agrochemicals applied in the area, indicate that they are more readily available by the trees, either because they are associated with less resistant (clay) minerals, or because they derive through the application of agrochemical products (i.e., phosphate fertilisers, fungicides etc.).

scholarly journals Carbon and oxygen isotope composition of Cambra-Silurian limestone and anthraconite from Bornholm: Evidence for deep burial diagenesis.

1985 ◽  
Vol 33 ◽  
pp. 415-435
Author(s):  
Bjørn Buchardt ◽  
Arne Thorshpj Nielsen
Keyword(s):  
Oxygen Isotope ◽  
Isotope Composition ◽  
Geothermal Gradient ◽  
The Other ◽  
Burial Diagenesis ◽  
The Baltic Sea ◽  
Marine Carbonate ◽  
Carbon And Oxygen Isotope ◽  
Lower Palaeozoic ◽  
The Baltic

The Cambro-Silurian elastic deposits of the Island of Bornholm in the Baltic Sea include carbonate rocks developed as primary limestone, early diagenetic concretions (mainly anthraconite) and late diagenetic vein and cavity fillings. Oxygen isotope compositions of primary limestone and concretions are lithologi- cally and stratigraphically homogenized to values significantly different from those of diagenetically unaf­fected marine carbonate. Instead, the composition is explained as a result of burial diagenesis at tempera­tures in excess of 90"C. On the other hand, the same rocks have retained their original carbon isotope compositions. The values reflect differences between carbonate precipitated in equilibrium with marine bicarbonate and carbonate formed in the sulphate reduction zone of the bottom sediments. The vein- and cavity fillings have isotopic compositions which are deviating markedly from the other material. Depen­ding on choice of geothermal gradient and primary, depositional parameters the observed thermal impact can be explained from burial of the Lower Palaeozoic sequence to depths greater than 2 km. It is sug­gested that this subsidence took place in Late Silurian to Earliest Devonian time in relation to the major Caledonian phase.

scholarly journals Can one simply say „no“ to solipsism?

2013 ◽  
Vol 56 (1) ◽  
pp. 79-93
Author(s):  
Boris Bratina
Keyword(s):  
Modern Philosophy ◽  
Short Review ◽  
The Other ◽  
Practical Situation ◽  
Philosophical Investigations ◽  
The Earth ◽  
Traditional Argument ◽  
Argument From Analogy ◽  
Angle Of View

This text is a part of a broader research of the problem of The Other in modern philosophy. Herefrom emerges a specific angle of view for the question of solipsism. In the first place, the principle impossibility of refutation of such a position is demonstrated, thereupon the author makes a short review of Sartre's analysis of the solipsism problem in Being and Nothingness, traditional argument from analogy and Wittgenstein's analysis in The Philosophical Investigations, and finally he analyzes the defensive and offensive variant of solipsism. Inversely, by virtue of impossibility solipsism confirmation, the motives that position and its consequences on practical sphere are analyzed, too. The author also poses the speech beginning question. It turns out that consequent solipsism shows the need for God?s prerogatives, but in practical situation its method is much more down the earth: The Other (alius) is firstly derogated to mere other (aliud) and thereafter to sameness - such Other is now well suited for asimilation. In the end, the author shows the contradictions of Gorgian formalistic solipsism. Nevertheless some positive aspects of solipsistic possibility are pointed out, too: solipsism is the transcendental condition of subjectivity in general and, just as The Transcendent Other, it is constituitve for subjectivity.

scholarly journals Evolution, dispersal and habitat preference of deep-sea trace fossils

1992 ◽  
Vol 6 ◽  
pp. 76-76
Author(s):  
T. Peter Crimes
Keyword(s):  
Deep Water ◽  
Deep Sea ◽  
Trace Fossils ◽  
Gradual Improvement ◽  
The Past ◽  
Sea Sand ◽  
Lower Palaeozoic ◽  
Abundance And Diversity ◽  
Inner Parts ◽  
Behavioral Programming

Cambrian deep-sea sediments have yielded few trace fossils. The first moderately diverse suite is found in an Arenig flysch sequence in Eire. There followed a gradual increase in diversity and abundance of trace fossils in deep-sea niches in the Palaeozoic and early Mesozoic. A major burst of behaviourial evolution appears to have taken place during the Cretaceous and, from then through the Tertiary, high levels of trace fossil abundance and diversity were maintained. This is confirmed by recent work on Miocene deep-sea sequences and from a superbly preserved, diverse, ichnofauna recently discovered in strata of Oligocene and Miocene age in the Makran Range of Iran.In the past, it has been inferred that there was a gradual improvement in behavioral programming in deep-sea traces, with a trend towards economy of effort and perfection. However, Lower Palaeozoic deep water traces show careful, complex, behavioral programming which was to change little through the rest of the Phanerozoic.Within the deep-sea, there are, however, significant variations in the ichnospectrum in different niches. For example, the inner parts of seep-sea sand fans, particularly the channelled areas, have a mixture of “deep” and “shallow” water traces, whereas the outer fan normally has only deep water forms.

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