Letter to R.F. Nelles from Mr. Ball

Letter to R.F. Nelles regarding wool. Mr. Nelles is advised to be sure the wool is well-washed and dry. This is from Mr. Ball of Hamilton, Ont., May 23, 1857.

Broadside of a requisition to W. Woodruff from William W. Ball, John McBride, Robert N. Ball, W. Servos, Joseph Wynn and 150 other people for Mr. Woodruff to run as a Representative in Parliament

Broadside, 45 cm. x 30 cm. of a requisition to W. Woodruff from William W. Ball, John McBride, Robert N. Ball, W. Servos, Joseph Wynn and 150 other people for Mr. Woodruff to run as a Representative in Parliament. This is followed by a positive, and humble response from Mr. Woodruff, June 3, 1856.

Projet sur les options réelles : logiciel Crystall Ball.

Rapport de stage

Studies on the Effect of High Energy Ball Milling On the Structural, Electrical and Magnetic Properties of Some Normal Spinets in the Ultrafine Regime

The present work is an attempt to understand the characteristics of high energy ball milling on the structural, electrical and magnetic properties of some normal spinets in the ultra fine regime, Magnetism and magnetic materials have been a fascinating subject for the mankind ever since the discovery of lodestone. Since then, man has been applying this principle of magnetism to build devices for various applications. Magnetism can be classified broadly into five categories. They are diamagnetic, paramagnetic, ferromagnetic antiferromagnetic and ferrimagnetic. Of these, ferro and ferri magnetic materials assume great commercial importance due to their unique properties like appropriate magnetic characteristics, high resistivity and low eddy current losses. The emergence of nanoscience and nanotechnology during the last decade had its impact in the field of magnetism and magnetic materials too. Now, it is common knowledge that materials synthesized in the nanoregime exhibit novel and superlative properties with respect to their coarser sized counterparts in the micron regime. These studies reveal that dielectric properties can be varied appreciably by high-energy ball milling in nanosized zinc ferrites produced by coprecipitation method. A semi conducting behaviour was observed in these materials with the Oxygen vacancies acting as the main charge carrier for conduction, which was produced at the time of coprecipitation and milling. Thus through this study, it was possible to successfully investigate the finite size effects on the structural, electrical and magnetic properties of normal spinels in the ultra fine regime

Enhanced shape anisotropy and magneto-optical birefringence by high energy ball milling in NixFe1−xFe2O4 ferrofluids

Ferrofluids belonging to the series NixFe1 xFe2O4 were synthesised by two different procedures—one by standard co-precipitation techniques, the other by co-precipitation for synthesis of particles and dispersion aided by high-energy ball milling with a view to understand the effect of strain and size anisotropy on the magneto-optical properties of ferrofluids. The birefringence measurements were carried out using a standard ellipsometer. The birefringence signal obtained for chemically synthesised samples was satisfactorily fitted to the standard second Langevin function. The ball-milled ferrofluids showed a deviation and their birefringence was enhanced by an order. This large enhancement in the birefringence value cannot be attributed to the increase in grain size of the samples, considering that the grain sizes of sample synthesised by both modes are comparable; instead, it can be attributed to the lattice strain-induced shape anisotropy(oblation) arising from the high-energy ball-milling process. Thus magnetic-optical (MO) signals can be tuned by ball-milling process, which can find potential applications.

Enhanced shape anisotropy and magneto-optical birefringence by high energy ball milling in NixFe1 xFe2O4 ferrofluids

Ferrofluids belonging to the series NixFe1 xFe2O4 were synthesised by two different procedures—one by standard co-precipitation techniques, the other by co-precipitation for synthesis of particles and dispersion aided by high-energy ball milling with a view to understand the effect of strain and size anisotropy on the magneto-optical properties of ferrofluids. The birefringence measurements were carried out using a standard ellipsometer. The birefringence signal obtained for chemically synthesised samples was satisfactorily fitted to the standard second Langevin function. The ball-milled ferrofluids showed a deviation and their birefringence was enhanced by an order. This large enhancement in the birefringence value cannot be attributed to the increase in grain size of the samples, considering that the grain sizes of sample synthesised by both modes are comparable; instead, it can be attributed to the lattice strain-induced shape anisotropy(oblation) arising from the high-energy ball-milling process. Thus magnetic-optical (MO) signals can be tuned by ball-milling process, which can find potential applications

Kin-Ball : deporte y respeto, de la mano.

Resumen basado en la publicación

El ball de saló com a exercici físic en els ancians que assisteixen a la Caja de Compensación Familiar (Confamiliares) de la ciutat de Manizales (Colòmbia).

Se muestran esquemas. Resumen tomado del autor

wrecking ball

wrecking ball

Dansa i ball de saló.'Danza y baile de salón'.

Se expone una unidad didáctica dedicada a la educación artística y musical. Se estructura en una presentación de objetivos, contenidos, metodología y material destinado al profesorado donde se exponen toda una serie de bailes de todo el mundo. A continuación se adjuntan una serie de actividades dirigidas a los alumnos, relacionadas con la danza, la música y su localización geográfica.

Deportes alternativos I : froorball, indiaca, fun-ball.

Se presentan tres deportes alternativos para fomentar valores como el trabajo en equipo o la convivencia. Se expone el origen, las reglas y las técnicas básicas de cada uno de ellos.

The swing ball.

La etapa uno se centra en las habilidades de lenguaje oral y prelectura que los niños necesitan para ser lectores competentes. Esta etapa es esencial para:la introducción de los personajes principales. Alentar a los niños a conversar acerca de ellos mismos y sus experiencias en relación con las historias. El desarrollo de destrezas de escuchar. Se presentan las primeras palabras clave. El desarrollo de una actitud positiva hacia la lectura. La enseñanza de habilidades de manipulación del libro. Estas historias de Bif, Chip y Kipper sirven de base para hablar de temas como las relaciones entre hermanos, apodos, cumpleaños, la hora del baño, aprender algo nuevo, y así sucesivamente. Al hablar de sus propias experiencias, los niños sienten una participación personal en los acontecimientos de las historias. A Biff y a Chip les gusta jugar a la pelota. Jugar a la pelota en un pequeño jardín a veces puede dar lugar a problemas. Biff y Chip tienen todo tipo de dificultades cuando juegan en su jardín, hasta que papá tiene una idea muy buena.

The gas-fitters ball.

En el verano de mil ochocientos noventa y cuatro, hubo en Lamberth una gran escasez de crímenes y la pandilla de amigos se lamenta por eso, pero pronto tendrán la oportunidad de actuar cuando tienen un nuevo crimen que resolver, y esta vez se trataba de algo grande.