In this study a series of ambient vibration tests on the triple ferrocement elevated water tanks with 150 cubic meters volume, is carried out. In order to verify the dynamic characteristics of full, half-full and one full tanks (mass eccentric system), the different arrangements of sensors are used. The effects of base rotation are also considered in the tests. Natural frequencies and mode shap...

a water jet machining is an industrial tool capable of cutting a wide variety of materials using avery high-pressure jet of water, or a mixture of water and an abrasive substance. this paperaddresses the concept of the intelligent knowledge base system (ikbs) for optimization of productdesign and manufacturing process for water jet machining in computer based concurrentengineering environment. ...

Organizations expend large amounts of educational and training resources to improve employee task and job performance. These resources must be allocated efficiently and effectively to increase the probability of organizational success. Information technology (IT) is one organizational area in which education and training are particularly important, largely because IT has redefined the requisite...

This paper introduces PROSTh1, a knowledge-based simulation design tool that automatically generates simulation models from process models. Domain experts who are familiar with the various aspects of the system may be interviewed and process models can be developed based on the evidence collected using PROSIM. The built-in simulation design support environment of PROSIM enables building simulat...

The reaction course of the selenation-oxidation-elimination sequence carried out from cis-4-benzyloxy-1,2-epoxycyclohexane (cis-1) is studied. Contrary to literature precedents, this transformation leads to an unexpected diastereomeric cyclohexenol, whose formation can be interpreted by stereoelectronic grounds. In addition, the base induced rearrangement of cis-1 with lithium amide bases is al...

Optical communications is becoming an evereasingly import@ option for designers of spaceround communications links, whether it be for wnment or commercial applications. In this paper technology being developed by NASA for use in %-to-ground optical communications is presented. t, a program which is collecting a long term data : of atmospheric visibility statistics for optical )agation through t...

In this study a series of ambient vibration tests on the triple ferrocement elevated water tanks with 150 cubic meters volume, is carried out. In order to verify the dynamic characteristics of full, half-full and one full tanks (mass eccentric system), the different arrangements of sensors are used. The effects of base rotation are also considered in the tests. Natural frequencies and mode shap...

this study was conducted to assess the effects of irrigation and plant growth promoting bactera on seed yield and qualitative characteristics of black cumin (nigella sativa l.) at the experimental station of the research institute of forest and rangeland, damavan region, iran. a split-plot experimental design, based on randomized complete block design (rcbd) with three replications, was used. i...