scholarly journals The theory of ship waves

1926 ◽  
Vol 111 (759) ◽  
pp. 491-529 ◽  
Keyword(s):  
Finite Depth ◽  
Wave Disturbance ◽  
Present Communication ◽  
Ship Waves ◽  
Infinite Depth ◽  
The Subject ◽  
Considerable Detail

The theory of ship waves, when the sea is considered to be of infinite depth, has been the subject of many researches. When the sea is of finite depth the integrals involved are more complicated, but in this case also the theory has been worked out in considerable detail. The main object of the present communication is to add to the number of cases which have been solved, or, to be more precise, which have been exactly formulated, a certain series in which the depth is variable. Of subsidiary interest, but coming under the title of the paper, are some considerations relating to the wave disturbance when the depth is finite. These are dealt with briefly in section 5.

scholarly journals XIX.—Magnetization and Resistance of Nickel Wire at High Temperatures. Part II.

1907 ◽  
Vol 45 (3) ◽  
pp. 547-554
Author(s):  
C. G. Knott
Keyword(s):  
High Temperature ◽  
High Temperatures ◽  
Electrical Resistance ◽  
British Association ◽  
Nickel Wire ◽  
Present Communication ◽  
Association Meeting ◽  
The Subject ◽  
The Wire

The experiments which form the subject of the present communication were carried out two years ago, and supplement results already published. A brief note of some of the results was read before the Society in June 1904, and was also read before the British Association Meeting at Cambridge in August of the same year.The previous paper discussed the effect of high temperature on the relation between electrical resistance and magnetization when the wire was magnetized longitudinally, that is, in the direction in which the resistance was measured.The present results have to do with the effect of high temperature on the relation between resistance and magnetization when the magnetization was transverse to the direction along which the resistance was measured.

scholarly journals The combustion of aromatic and alicyclic hydrocarbons. II. The ignition of aromatic hydrocarbons at high temperatures

1939 ◽  
Vol 171 (946) ◽  
pp. 421-433 ◽  
Keyword(s):  
High Temperatures ◽  
Aromatic Hydrocarbons ◽  
Isothermal Oxidation ◽  
Present Communication ◽  
Temperature Range ◽  
Benzene Toluene ◽  
The Subject ◽  
Kinetics Of

In the first paper of this series (Burgoyne 1937) the kinetics of the isothermal oxidation above 400° C of several aromatic hydrocarbons was studied. The present communication extends this work to include the phenomena of ignition in the same temperature range, whilst the corresponding reactions below 400° C form the subject of further investigations now in progress. The hydrocarbons at present under consideration are benzene, toluene, ethylbenzene, n -propylbenzene, o-, m - and p -xylenes and mesitylene.

2. On the penetration of spermatozoa into the interior of the ovum; a note showing this to have been recorded as an established fact in the philosophical transactions for 1843

1854 ◽  
Vol 6 ◽  
pp. 295-295
Keyword(s):  
Present Communication ◽  
Established Fact ◽  
The Subject

Referring to a statement by Dr. Nelson, in a paper “On the reproduction of the Ascaris Mystax ,” that the investigations in that paper “appear to be the first in which the fact of the penetration of spermatozoa into the ovum has been distinctly seen and clearly established in one of the most highly organized of the Entozoa,” the author of the present communication remarks, that when Dr. Nelson made this statement he was evidently not aware of what had been published on the subject. In proof of this Dr. Barry refers to his own paper, entitled “Spermatozoa observed within the Mammiferous Ovum” (Phil. Trans. 1843, p. 33), in which he states that he had met with ova of the Rabbit containing a number of spermatozoa in their interior; and to the Edinburgh New Philosophical Journal for October 1843, which contains a drawing in which seven spermatozoa are represented in the interior of an ovum, besides the statement that in one instance he had counted more than twenty spermatozoa in a single ovum.

scholarly journals Deep Water Ship-Waves

1906 ◽  
Vol 25 (1) ◽  
pp. 562-587 ◽  
Author(s):  
Lord Kelvin
Keyword(s):  
Deep Water ◽  
Two Dimensions ◽  
Two Dimensional ◽  
Present Communication ◽  
Ship Waves ◽  
Horizontal Bottom

§§ 32–64. Canal Ship-Waves.§ 32. To avoid the somewhat cumbrous title “Two-dimensional,” I now use the designation “Canal † Waves” to denote waves in a canal with horizontal bottom and vertical sides, which, if not two-dimensional in their source, become more and more approximately two-dimensional at greater and greater distances from the source. In the present communication the source is such as to render the motion two-dimensional throughout; the two dimensions being respectively perpendicular to the bottom, and parallel to the length of the canal: the canal being straight.

scholarly journals Roman Tribune Cola di Rienzo (1347), Res Gestae Divi Augusti and Lex de Imperio Vespasiani

2018 ◽  
Vol 20 (1) ◽  
pp. 47-104
Author(s):  
Milan Lovenjak
Keyword(s):  
Asia Minor ◽  
Classical Literature ◽  
Roman Emperor ◽  
Documentary Sources ◽  
History Of ◽  
The Subject ◽  
Ancient Documents ◽  
The Law ◽  
Dramatic Adaptations ◽  
Considerable Detail

The anonymous and fragmentarily preserved Romance-dialect Chronicle describing the history of Rome in 1325–1360, the extensive correspondence between Cola di Rienzo (1313–1354) and rulers, nobles, Church dignitaries, and intellectuals (especially Petrarch) in Italy and abroad, as well as various documentary sources allow us to trace Rienzo’s career in considerable detail. A papal notary, a scholar in Classical literature, an exceptional orator and a copyist and translator of Ancient Roman inscriptions, Rienzo, aided by a group of followers, overthrew the baron rule in Rome in May 1347, assumed the title of ‘Roman Tribune’ and seized power with the aim of reuniting Italy under a common emperor, a concept modelled on the first Roman emperor, Augustus. After undertaking a number of more or less successful measures, public manifestations and diplomatic activities, he was forced to retreat by a clash with the barons’ army even before the end of the year. After years of exile, he returned triumphant in the middle of 1354 to seize power, but the first few weeks of tyranny and arbitrary measures led to his tragic demise at the hands of an infuriated mob. Later he grew into the subject of myth, portrayed in numerous literary, musical, and dramatic adaptations. The present paper examines two ancient documents crucial to the formation of the principate (the renewal of which was Cola’s objective), i.e. Augustus’ account of his own deeds (Res gestae divi Augusti), which is mentioned by Suetonius and known from three epigraphically attested copies from Asia Minor, and a bronze plaque bearing a law on the conferment of powers on Emperor Vespasian, the so-called Lex de imperio Vespasiani. The plaque was used as propaganda by Cola during his preparations for the coup. The inconsistencies between the parts of the law preserved on the plaque (it must have been preceded by at least one other plaque) and the account of Cola’s interpretation as given in the anonymous Chronicle raise a number of questions, which resist definitive answers.

Reflexion of water waves by a permeable barrier

1979 ◽  
Vol 95 (1) ◽  
pp. 141-157 ◽  
Author(s):  
C. Macaskill
Keyword(s):  
Water Waves ◽  
Water Wave ◽  
Finite Depth ◽  
Infinite Depth ◽  
Permeable Barrier ◽  
Impermeable Barrier ◽  
Linearized Problem ◽  
Special Case ◽  
Thin Barrier ◽  
Standard Techniques

The linearized problem of water-wave reflexion by a thin barrier of arbitrary permeability is considered with the restriction that the flow be two-dimensional. The formulation includes the special case of transmission through one or more gaps in an otherwise impermeable barrier. The general problem is reduced to a set of integral equations using standard techniques. These equations are then solved using a special decomposition of the finite depth source potential which allows accurate solutions to be obtained economically. A representative range of solutions is obtained numerically for both finite and infinite depth problems.

scholarly journals V.—Note on an Undescribed Area of Lower Greensand or Vectian in Dorset

1891 ◽  
Vol 8 (10) ◽  
pp. 456-458 ◽  
Author(s):  
A. J. Jukes-Browne
Keyword(s):  
Lower Cretaceous ◽  
Small Area ◽  
Upper Cretaceous ◽  
The Other ◽  
Present Communication ◽  
The Subject ◽  
Geological Magazine

Until recently no outcrop of the Vectian or Lower Greensand was known to occur between Lulworth on the coast of Dorset and the neighbourhood of Devizes in Wiltshire. It was supposed that, with the exception of a small area of Wealden in the Vale of Wardour, the whole of the Lower Cretaceous Series in Dorset and South Wilts was concealed and buried beneath the overlapping Upper Cretaceous strata. A recent examination of this district however has revealed two areas where the Vectian sands emerge from beneath the Gault. One of these has already been indicated in the pages of the Geological Magazine; the other is the subject of the present communication.

The Morphophonemics of Weak Triliteral Stems in Standard Arabic: A Generative Phonology Perspective

Al-Abhath ◽  
2020 ◽  
Vol 68 (1) ◽  
pp. 182-219
Author(s):  
Zaki N. Abdel-Malek
Keyword(s):  
Primary Data ◽  
Transformational Grammar ◽  
Standard Arabic ◽  
Small Set ◽  
The Subject ◽  
Considerable Detail

The “weak” triliteral stems of Standard Arabic have been studied in considerable detail by Arab as well as Western grammarians. In most cases, however, the treatment has been largely limited to listing and classifying the primary data, which satisfies observational adequacy but fails to meet the essential requirements of descriptive adequacy, simplicity and generality. In a few cases rules have been proposed, but these rules fall short of expectations: on the whole, they strike the user as complex, arbitrary and unmotivated. Drawing on the theory of Generative-Transformational Grammar, I have formulated a small set of rules which seek to satisfy all of the three essential requirements, and thus render the subject more palatable to scholars as well as learners of Standard Arabic.

Psychotic Depression and Age

1960 ◽  
Vol 106 (445) ◽  
pp. 1394-1397 ◽  
Author(s):  
G. A. Foulds
Keyword(s):  
Psychotic Depression ◽  
Present Communication ◽  
Mental Patients ◽  
The Subject

The subject of the present communication arose from an incidental observation made during an attempt to establish a Symptom: Sign Inventory for use with all types of mental patients. For some time past all cases diagnosed by psychiatrists as suffering from depression, whether psychotic or neurotic, have been given this inventory. The observation made was that, within the group diagnosed as psychotic, those over 60 years of age did not appear from the inventory to have the same symptoms as those under 60.

scholarly journals VII.—On the Oldest British Belemnite

1869 ◽  
Vol 6 (58) ◽  
pp. 166-167 ◽  
Author(s):  
Raplh Tate
Keyword(s):  
Present Communication ◽  
The Subject

Professor Phillips remarks that “from the Inferior Oolite downwards through the Liassic series Belemnites are almost never absent from the section till we reach the zone of Ammonites Busklandi; only in the upper part of this zone have they been found—at Salford and at Lyme Regis,” But as the unique example—the subject of the present communication—was collected from thezone of Ammonites angulatus, it is the oldest known British Belemnite, and as such claims some attention.

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