Adaptive Bit Loading (ABL) in Multiple-Input Multiple-Output Orthogonal Frequency-Division Multiplexing (MIMO-OFDM) is often used to achieve the desired Bit Error Rate (BER) performance in wireless systems. In this paper, we discuss some of the bit loading algorithms, compare them in terms of the BER performance, and present an effective and concise Adaptive Grouped Loading (AGL) algorithm. Fur...

This paper describes an integer programming model for generating stable loading patterns for the Pallet Loading Problem. The algorithm always gives optimal or near-optimal utilization of the pallet area and fulfills stability criteria for 98% of the test cases.

in this research, softening and ratcheting behaviors of ck20 alloy steel cylindrical shells were studied under displacement-control and force-control cyclic axial loading and the behavior of hysteresis curves of specimens was also investigated. experimental tests were performed by a servo-hydraulic instron 8802 machine. the mechanical properties of specimens were determined according to astm e8...

PURPOSE The purpose of this study was to determine the effect of number of chewing strokes on change in blood flow in denture-supporting maxillary mucosa. METHODS Subjects consisted of 11 healthy dentate men. Mastication was simulated by intermittent loading (10 N, 1/0.75 Hz) on a lateral area of the hard palate using a 2-cm(2) test plate. Loading duration was set at 1, 4, 8 or 12 min (80, 32...

Resilient modulus of pavement materials is a key property required for the pavement thickness design. This paper describes the results of an experimental study on the effects of temperature and loading frequency on the resilient modulus of a SBS polymer modified asphalt concrete under dry and saturated conditions. Dynamic creep tests were conducted on dry and saturated specimens of the mixture ...

composite steel concrete composite floor used mainly in the commercial and office building has lighter weight and is considered very economical. the light weight natures of this type of floor causes some vibration problems when it is subjected to loadings such as human footstep loading. the dynamic characteristics of these floors are dependent on several parameters such as joist span, girder sp...

this study investigated effective parameters in the leadership and management among commanders of the army ground force, hierarchy of each criterion and ultimately proposal of a desirable leadership and management model from the respective commanders and senior managers’ perspectives. characterized as an applied and field study, the research employed the participation of the 100 commanders and ...

statement of the problem delayed loading is one of the anxieties of implant patients. immediate loading can solve the problem and make patients more satisfied. purpose the present study was aimed to compare the marginal bone level in periapical radiographs of maxi implants under different loading (immediate and delayed) patterns. material and methods this split mouth experimental study included...