نتایج جستجو برای: reduction division

تعداد نتایج: 582723  

2000
Fang Sun Shinichiro Omachi Nei Kato Hirotomo Aso Shunichi Kono Tasuku Takagi

For many pattern recognition methods, high recognition accuracy is obtained at very high expense of computational cost. In this paper, a new algorithm that reduces the computational cost for calculating discriminant function is proposed. This algorithm consists of two stages which are feature vector division and dimensional reduction. The processing of feature division is based on characteristi...

2014
A. N. Jadhav

Orthogonal Frequency Division Multiplexing (OFDM) has become the popular modulation technique in high speed wireless communications. One of the main disadvantages of Orthogonal Frequency Division multiplexing (OFDM) is its high Peak-to-Average Power Ratio (PAPR), which significantly reduces the efficiency of the High Power Amplifier (HPA). Due to the simplest way for PAPR reduction, clipping te...

2014
Qinghua ZHANG Yonglong GUO Yu XIAO Duoqian Miao Guoying Wang

Attribute reduction is one of the core issues of the rough set theory. The traditional method of attribute reduction was designed based on positive region unchanged, as abandoning processing the incompatible data in the boundary domain, so the classification characteristics of the reduction results are not necessarily best. In this paper, the concept of relative approximate degree is proposed i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

2003
David W. Hilbert Patrick J. Piggot

During sporulation, Bacillus subtilis undergoes an asymmetric division that results in two cells with different fates, the larger mother cell and the smaller forespore. The protein phosphatase SpoIIE, which is required for activation of the forespore-specific transcription factor , is also required for optimal efficiency and timing of asymmetric division. We performed a genetic screen for spoII...

Journal: :iranian journal of cancer prevention 0
soheila rahmani m.s. student of clinical psychologydepartment of psychology and educational science, semnan university siavash talepasand dept. of psychology and educational sciences, semnan university, semnan, iran ali ghanbary-motlagh radiation and oncology center, imam hossein hospital, shahid beheshti university of medical sciences, tehran, iran

abstract objective : this study is conducted to compare meta-cognition treatment and mindfulness-based stress reduction treatment on life quality of women with breast cancer. method: in aquasi-experimental design, with pre-test and post-test and controlgroup,36 patients with a diagnosis of breast cancer, among patients who referred to the division of oncology and radiotherapy of imam hossein  h...

Journal: :Scientific Journal Warsaw University of Life Sciences-SGGW 2021

Women empowerment and poverty reduction are interrelated key driving forces to achieve the sustainable development of a country. However, most women farmers in rural areas have lack access adequate assets resources, credit facilities freedom decision making within households. Therefore, is timely important requirement reduce household among them. This study was conducted identify determinants a...

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