The elements of applied mathematics including kinetics, statics, and hydrostatics.

Mode of access: Internet.

A school compendium of natural and experimental philosophy, embracing the elementary principles of mechanics, hydrostatics ...

Mode of access: Internet.

A system of natural philosophy : in which the principles of mechanics, hydrostatics, hydraulics, pneumatics, acoustics, optics, astronomy, electricity, and magnetism, are familiarly explained, and illustrated by more than two hundred engravings : to which are added, questions for the examination of the pupils : designed for the use of schools and academies /

Mode of access: Internet.

Padronização e validação de uma equação para determinação do volume corporal em ratos winstar saudáveis e sedentários com idade entre 60 e 240 dias

A determinação da composição corporal pode ser utilizada para evidenciar diversos fatores entre eles a dieta, o uso de drogas, a incidência de patologias, diferenças genética, nível de treinamento, gênero e idade. No modelo de natação para ratos a composição corporal pode ter um papel determinante na intensidade de exercício, uma vez que os animais utilizados podem apresentar diferentes densidades corporais. Nesse sentido, o objetivo do presente projeto baseia-se na possibilidade de desenvolver uma equação para estimar o volume corporal de ratos sedentários a partir da relação linear entre peso e volume corporais (r=1,00) encontrada em estudos anteriores. Dessa forma, tornando prático e viável o uso da densidade corporal para precisa determinação da intensidade de exercício em estudos que utilizam a natação como ergômetro de exercício animal. Para isso serão utilizados 105 Rattus norvegicus albinus da linhagem Wistar, os quais serão avaliados em um estudo longitudinal que consiste em avaliações a cada 30 dias, a partir dos 60 até 240 dias de idade, para a determinação do volume corporal através de pesagens hidrostáticas, do índice de lee e análise da composição química da carcaça. Com isso, espera-se poder derivar uma equação para estimar o volume corporal dentro de toda a faixa de idade utilizada ou, no caso não seja encontrada uma relação linear entre peso e volume corporais entre ratos de diferentes idades, o desenvolvimento de várias equações para estimar o volume corporal em faixas etárias. Além disso, a composição química da carcaça dos mais será determinada na tentativa de validar o método de pesagem hidrostática e buscar eventuais correlações entre os parâmetro corporais (volume corporal, peso corporal, índice de lee e densidade) e os componentes de gordura, massa magra, água e proteína dos animais

Hydraulic evaluation of the gyro electric wave energy converter

Motivation Thanks for a scholarship offered by ALma Mater Studiorum I could stay in Denmark for six months during which I could do physical tests on the device Gyro PTO at the Departmet of Civil Engineering of Aalborg University. Aim The goal of my thesis is an hydraulic evaluation of the device: Gyro PTO, a gyroscopic device for conversion of mechanical energy in ocean surface waves to electrical energy. The principle of the system is the application of the gyroscopic moment of flywheels equipped on a swing float excited by waves. The laboratory activities were carried out by: Morten Kramer, Jan Olsen, Irene Guaraldi, Morten Thøtt, Nikolaj Holk. The main purpose of the tests was to investigate the power absorption performance in irregular waves, but testing also included performance measures in regular waves and simple tests to get knowledge about characteristics of the device, which could facilitate the possibility of performing numerical simulations and optimizations. Methodology To generate the waves and measure the performance of the device a workstation was created in the laboratory. The workstation consist of four computers in each of wich there was a different program. Programs have been used : Awasys6, LabView, Wave lab, Motive optitrack, Matlab, Autocad Main Results Thanks to the obtained data with the tank testing was possible to make the process of wave analisys. We obtained significant wave height and period through a script Matlab and then the values of power produced, and energy efficiency of the device for two types of waves: regular and irregular. We also got results as: physical size, weight, inertia moments, hydrostatics, eigen periods, mooring stiffness, friction, hydrodynamic coefficients etc. We obtained significant parameters related to the prototype in the laboratory after which we scale up the results obtained for two future applications: one in Nissun Brending and in the North Sea. Conclusions The main conclusion on the testing is that more focus should be put into ensuring a stable and positive power output in a variety of wave conditions. In the irregular waves the power production was negative and therefore it does not make sense to scale up the results directly. The average measured capture width in the regular waves was 0.21 m. As the device width is 0.63 m this corresponds to a capture width ratio of: 0.21/0.63 * 100 = 33 %. Let’s assume that it is possible to get the device to produce as well in irregular waves under any wave conditions, and lets further assume that the yearly absorbed energy can be converted into electricity at a PTO-efficiency of 90 %. Under all those assumptions the results in table are found, i.e. a Nissum Bredning would produce 0.87 MWh/year and a North Sea device 85 MWh/year.

Field comparison of four nearshore survey systems /

"May 1986."

The motion of a floating sphere in surface waves /

Mode of access: Internet.

Epitome elementorum matheseos universae : pars tertia, complectens hydrostaticam, aerometriam, hydraulicam, ipticam, catoptricam, dioptricam, et perspctivam, /

Mode of access: Internet.

The builder's complete assistant, or, A library of arts and sciences, absolutely necessary to be understood by builders and workmen in general : viz. I. Arithmetick, vulgar and decimal, in whole numbers and fractions. II. Geometry, lineal, superficial, and solid. III. Architecture, universal. IV. Mensuration. V. Plain trigonometry. VI. Surveying of land, &c. VII. Mechanick powers. VIII. Hydrostaticks : illustrated by above thirteen hundred examples of lines, superficies, solids, mouldings, pedestals, columns, pilasters, entablatures, pediments, imposts, block cornices, rustick quoins, frontispieces, arcades, porticos, &c. : proportioned by modules and minutes, according to Andrea Palladio, and by equal parts : likewise great varieties of trussed roofs, timber bridges, centerings, arches, groins, twisted rails, compartments, obelisks, vases, pedestals for bustos, sun-dials, fonts, &c. and methods for raising heavy bodies by the force of levers, pulleys, axes in peritrochio, screws, and wedges, as also water, by the common pump, crane, etc. : wherein the properties, and pressure of the air on water, &c. are explained : the whole exemplified by 77 large quarto copper-plates /

All of the numbered plates in the atlas are double plates, and thus are counted twice in the adjusted plate count.

La statique des fluides, la liquéfaction des gaz et l'industrie du froid,

pte. I. Statique des fluides purs, par E.-H. Armagat et L. Décombe.--pte. II. Le problème de la liquéfaction des gaz, l'industrie du froid, par L. Décombe.

Scientific dialogues : intended for the instruction and entertainment of young people : in which the first principles of natural and experimental philosophy are fully explained /

"Lydia R. Bailey, printer."

An introduction to natural philosophy: designed as a text book, for the use of the students in Yale College...

v.1. Mechanics and hydrostatics. v.2. Pneumatics, electricity, magnetism, and optics.

An introduction to natural philosophy: designed as a textbook for the use of the students in Yale college...

v.1. Mechanics and hydrostatics.--v.2. Pneumatics, electricity, magnetism, and optics.

The works of James Ferguson, F.R.S., comprising Astronomy, explained upon Sir Isaac Newton's principles; Lectures on select subjects; and Essays and treatises.

"A short account of the life of the author, written by himself": v. 3, p. [v]-xxii.

An introduction to a general system of hydrostaticks and hydraulicks, philosophical and practical. Wherein the most reasonable and advantageous methods of raising and conducting water, for the watering noblemens and gentlemens seats, buildings, gardens, &c., are carefully (and in a manner not yet publish'd in any language) laid down ... Illustrated and explain'd by sixty copper cuts, done by the best hands ... Collected from the best of the Italian and French designs (together with some new ones of the author's own invention) ...

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