نتایج جستجو برای: vertical system
تعداد نتایج: 2306220 فیلتر نتایج به سال:
the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...
This research explains airplane model with two vertical vibrations for airframe and landing gear system. The purpose of this work is to advance vibrational model for study of adjustable vibration absorber and to plan Proportional-Integration-Derivative approach for adapting semi active control force. The coefficients of this method are modified as stated by Bee multiobjective optimization using...
Vertical flow systems (VFS) are a type of passive treatment unit process in which acid mine drainage (AMD) flows vertically through layers of organic matter and limestone. Located in the coal belt of eastern Oklahoma, the Red Oak VFS was constructed to address AMD exiting an abandoned underground coal mine. The passive treatment system consists of five cells, alternating between surface flow (c...
Pneumatic Artificial Muscle (PAM) overcome the other common actuators as it has higher power-to-weight ratio. However, the air compressibility and lack of damping ability of PAM brings dynamic delay to the pressure response and causes oscillatory motion to occur. It is not easy to realize the motion with high accuracy and high speed due to all the non-linear characteristics of pneumatic system....
Vertical partitioning is a well known technique to improve query response time in relational databases. This consists in dividing a table into a set of fragments of attributes according to the queries run against the table. In dynamic systems the queries tend to change with time, so it is needed a dynamic vertical partitioning technique which adapts the fragments according to the changes in que...
In this paper we introduce the objective function for vertical partitioning in database systems. It has been built with the new evaluative criterion: cache hit probability. Testing the validity of the derived evaluative formula via program simulation shows its high accuracy.
based on the standards for design of structures, any structure should be designated for seismic loads and any combinations containing seismic loads. for spectral analysis of a structure, the site effect is taken into account by considering its effects on the design spectra. because of different lateral and vertical stiffness of the soil layers underneath the structure, the design spectra are di...
This Living Review deals with the division of competences between the EU and its member states in a multilevel political system. The article summarises research on the relations between the EU and the national and sub-national levels of the member states. It provides an overview on normative and theoretical concepts and empirical research. From the outset, European integration was about the tra...
Processing costs in distributed processing environments is most often dominated by the network communications required for interprocess communication. It is well-known from the distributed relational database design research that careful placement of data \near" the users or processors where it is used is mandatory or system performance will suuer greatly. Data placement in relational database ...
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