نتایج جستجو برای: mac cammy fuchs method

تعداد نتایج: 1657039  

Journal: :international journal of advanced biological and biomedical research 2014
fatemeh madadian chaleshtory naser honarjoo ahmad jalalian

soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure.so, this research has been done for achieving this purpose. this area is arounding sa...

Journal: :AJNR. American journal of neuroradiology 2006
V L Marcar U Schwarz E Martin T Loenneker

BACKGROUND AND PURPOSE Functional MR imaging (fMRI) is playing an important role in investigations of cortical development and maturation. Functional MR imaging in young children or infants frequently involves measuring a clinical population under sedation or anesthesia. We examined the effect of depth of anesthesia on the extent and amplitude of the blood oxygen level-dependent (BOLD) response...

2014
Sajjad Rahmani A. M. Afshin Hemmatyar Kaushik R. Chowdhury K. Abdulla Al-Ali Kaushik Chowdhury G. Chen W. Liu Y. Li W. Cheng V. Esmaeelzadeh R. Berangi S. Sebt E. Hosseini Usman Shahid Khan

In this paper, we have proposed some changes to MAC protocol for improving the performance of transport layer in cognitive radio ad-hoc networks. We have studied effects of different MAC and routing protocols on TCP in cognitive radio technology enabled environments. We have reviewed performance of TCP in two different situations. In first situation, all users are secondary users while in secon...

2006
Norbert E. Fuchs Kaarel Kaljurand Gerold Schneider

We present Attempto Controlled English — a userfriendly first-order logic language with a rich English syntax — and its associated tools, and demonstrate how they meet the challenges of knowledge representation, reasoning, interoperability and user interfaces created by large software projects like the semantic web. Attempto Controlled English Meets the Challenges of Knowledge Representation, R...

Journal: :Beiträge zur Geschichte der deutschen Sprache und Literatur (PBB) 1917

Journal: :Beiträge zur Geschichte der deutschen Sprache und Literatur (PBB) 1892

2011
Fanbao Liu Tao Xie Changxiang Shen

H-MAC was proposed to increase efficiency over HMAC by omitting its outer key, and keep the advantage and security of HMAC at the same time. However, as pointed out by the designer, the security of H-MAC also depends on the secrecy of the intermediate value (the equivalent key) of the inner hashing. In this paper, we propose an efficient method to break H-MAC, by using a generalized birthday at...

Journal: :Communications and Network 2011
Qiyong Pan Jin Wu Yihuai Wang Jingfei Ni

The attribute access methods of MAC layer in wireless communication network is researched. Aiming at conquering the problem of the shared ZigBee wireless channel resulting multi-channel device conflicts when using the data channel at the same time, therefore the protocol is improved and a method used to access the properties of ZigBee is proposed, and this method can be achieved to manage effec...

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