Exterior view of the synagogue in Bielsko-Biala Poland and the street in front of it Synagogues; Exterior

Caption reads Bielitz. Kaiser Franz Josefstrasse, Parkanlage

Exterior view of the Boehm family hat factory; Novy Jicin, Czech Republic Businesses

Tovarna na Klobouky Fv. Boehm

Study of Friction and Transfer Layer Formation in Copper-Steel Tribo-System: Role of Surface Texture and Roughness Parameters

In the present investigation, experiments were conducted on a tribological couple-copper pin against steel plate-using an inclined pin-on-plate sliding tester to understand the role of surface texture and roughness parameters of the plate on the coefficient friction and transfer layer formation. Two surface characteristics of the steel plates-roughness and texture-were varied in the tests. It was observed that the transfer layer formation and the coefficient of friction along with its two components, namely, the adhesion and plowing, are controlled by the surface texture of the plate. The plowing component of friction was highest for the surface texture that promotes plane strain conditions while it was lowest for the texture that favors plane stress conditions at the interface. Dimensionless quantifiable roughness parameters were formulated to describe the degree of plowing and hence the plane strain/stress type deformations taking place at the asperity level.

Exterior view of expressionist painter Emil Luethy's home; Gotthardstr. 41 (Basel?) Architecture Residences Exterior

Handwritten on verso: zu obest mein Atelier (My studio on the top floor)

Exterior view of Josef Altschuler standing in the doorway of his joinery, Max Klamper Tischlermeister; Aßmayergasse 34, Wien XII (Vienna).

Josef Altschuler was the father of Robert Altschuler

Exterior view of the residence of brother-in-law Louis; Wolfenbuettel.

Digital Image

Exterior of Congregation Ahavath Torah; Washington Avenue, Washington Heights, New York Synagogues; Exterior

Digital Image

Exterior of Congregation Ahavath Torah; Washington Avenue, Washington Heights, New York Synagogues; Exterior

Digital Image

Exterior of Congregation Ahavath Torah; Washington Avenue, Washington Heights, New York Synagogues; Exterior

Digital Image

Exterior of Congregation Ahavath Torah; Washington Avenue, Washington Heights, New York Synagogues; Exterior

Digital Image

Exterior of Congregation Ahavath Torah; Washington Avenue, Washington Heights, New York Synagogues; Exterior

Digital Image

Albert Einstein's Weekend Home; Caputh, near Berlin Architecture; Residences; Exterior

Digital Image

Deck; Albert Einstein's Weekend Home; Caputh, near Berlin Architecture; Residences; Exterior

Digital Image

Albert Einstein's Weekend Home; Caputh, near Berlin Architecture; Residences; Exterior

Digital Image

Deck; Albert Einstein's Weekend Home; Caputh, near Berlin Architecture; Residences; Exterior

Digital Image