Iron men and wooden ships : sailor chanties collected by F.S.

"William McFee's sea library": p. 12.

Description of the various systems of wooden railways, in connection with the report of the special Committee named by the Toronto legislature, to investigate and enquire into their usefulness and cost for colonization purposes. With woodcuts ...

Mode of access: Internet.

A text-book on the mechanics of materials and of beams, columns, and shafts /

Alternate leaves blank.

A text-book on the mechanics of materials and of beams, columns, and shafts /

Mode of access: Internet.

Census of manufactures: ... Lumber, and timber products, planing mills, wooden packing boxes ...

At head of title: 1921- : Department of Commerce ... Bureau of the Census ...

Covered wooden bridges of Bennington and vicinity.

Mode of access: Internet.

Analysis and design of partially prestressed beams to satisfy serviceability criteria /

Mode of access: Internet.

The post-captain, or The wooden walls well manned; comprehending a view of naval society and manners. Containing also a choice collection of sea and other songs.

Mode of access: Internet.

Useful information for engineers, architects, and constructors, and tables of rolled beams, channels, angles, etc. /

Mode of access: Internet.

Report on the use of metal railroad ties and on preservative processes and metal tie-plates for wooden ties /

Includes index.

Great Lakes register for the construction and classification of steel and wooden vessels.

Supplements were issued with several of the numbers.

Locking forms for the job press, containing useful information regarding the imposition of job forms; wooden and metal furniture, quoins, bearers, foundry guards, etc.,

Mode of access: Internet.

Ricketicketack and Wooden Clara : two tales in one volume /

Translation of Rikke-tikke-tak.

Residual stress and the yield strength of steel beams,

Sponsored jointly by the Welding Research Council and the Department of the Navy.

Modeling diffraction and imaging of laser beams by the mode-expansion method

We present a new method of modeling imaging of laser beams in the presence of diffraction. Our method is based on the concept of first orthogonally expanding the resultant diffraction field (that would have otherwise been obtained by the laborious application of the Huygens diffraction principle) and then representing it by an effective multimodal laser beam with different beam parameters. We show not only that the process of obtaining the new beam parameters is straightforward but also that it permits a different interpretation of the diffraction-caused focal shift in laser beams. All of the criteria that we have used to determine the minimum number of higher-order modes needed to accurately represent the diffraction field show that the mode-expansion method is numerically efficient. Finally, the characteristics of the mode-expansion method are such that it allows modeling of a vast array of diffraction problems, regardless of the characteristics of the incident laser beam, the diffracting element, or the observation plane. (C) 2005 Optical Society of America.