Cognitive Radio Network (CRN) is an emerging technology used to solve spectrum shortage problems in wireless communications. In CRN, unlicensed secondary users (SUs) and licensed primary (PUs) use resources at the same time by avoiding any interference from SUs. However, sensing process CRN often disturbed a security issue known as Primary User Emulation Attack (PUEA). PUEA one of main issues t...

BACKGROUND Disorders of creatine metabolism arise from genetic alterations of arginine:glycine amidinotransferase (AGAT), guanidinoacetate methyltransferase (GAMT), and the creatine transporter. We developed a strategy for the detection of AGAT and GAMT defects by measurement of guanidinoacetate (GAA) and creatine plus creatinine (Cr+Crn) in biological fluids. METHODS Three patients with AGAT...

Executive Summary When the procedure " Calculation of Railway Noise 1995 " (CRN) [Ref 1] was devised, the list of stock that was included was aimed at representing the majority of typical vehicles operating on the railway at that time. However, since 1995 the nature of the rolling stock fleet has changed considerably and there are many types of vehicle currently in operation that are not includ...

The aim of this study is to investigate the effects various ceramic-based coatings on performance AISI M2 high-speed steel punch used in nut piercing process. punches were coated with TiN, TiN/CrN, and CrAlN utilizing a physical vapour deposition method. total stroke number was evaluate tool life CrAlN, TiN/CrN punches. able work up greater numbers than TiN CrAlN. Hardness wear tests performed ...

Abstract Melanocortin 2 receptor antagonists in canine Cushing’s disease: vitro studies disease (CD), caused by an ACTH-secreting pituitary adenoma, is one of the most common endocrinopathies dogs. The current medical treatment options involve adrenocortical steroid synthesis inhibitors, but a selective targeted approach to block ACTH at its would be much more attractive. objective this study w...

In a cognitive radio network (CRN), a preempted secondary user (SU) is placed in a call level queue to wait for accessing another free channel. If the availability of channels is transparent to SUs, packets will be generated during their waiting time and the performance of the CRN will be influenced by which way to handle these packets. This paper mainly analyzes the performance of a CRN adopti...

Transition metal nitrides like CrN and TiN are widely used in automotive applications due to their high hardness and wear resistance. Recently, we showed that a multilayer architecture of CrN and TiN, deposited using the hybrid-high power impulse magnetron sputtering (HIPIMS) and direct current magnetron sputtering (DCMS)-HIPIMS/DCMS deposition technique, results in coatings which indicate not ...

CLAVATA1 (CLV1), CLV2, CLV3, CORYNE (CRN), BAM1 and BAM2 are key regulators that function at the shoot apical meristem (SAM) of plants to promote differentiation by limiting the size of the organizing center that maintains stem cell identity in neighboring cells. Previous results have indicated that the extracellular domain of the receptor kinase CLV1 binds to the CLV3-derived CLE ligand. The b...

We describe the radiation damage in chromium nitride and chromium oxynitride films which occurs by electron beam radiation within the Transmission Electron Microscope (TEM). The beam damage has been monitored by electron energy-loss spectroscopy (EELS) in TEM image mode using a 200 kV Philips CM20 (S)TEM with a LaB6-cathode, equipped with a Gatan Imaging Filter (GIF). The CrN samples (CrN and C...

Arabidopsis root development is orchestrated by signaling pathways that consist of different CLAVATA3/EMBRYO SURROUNDING REGION (CLE) peptide ligands and their cognate CLAVATA (CLV) and BARELY ANY MERISTEM (BAM) receptors. How and where different CLE peptides trigger specific morphological or physiological changes in the root is poorly understood. Here, we report that the receptor-like protein ...