Channels Reallocation In Cognitive Radio Networks Based On DNA Sequence Alignment

Nowadays, It has been shown that spectrum scarcity increased due to tremendous growth of new players in wireless base system by the evolution of the radio communication. Resent survey found that there are many areas of the radio spectrum that are occupied by authorized user/primary user (PU), which are not fully utilized. Cognitive radios (CR) prove to next generation wireless communication system that proposed as a way to reuse this under-utilised spectrum in an opportunistic and non-interfering basis. A CR is a self-directed entity in a wireless communications environment that senses its environment, tracks changes, and reacts upon its findings and frequently exchanges information with the networks for secondary user (SU). However, CR facing collision problem with tracks changes i.e. reallocating of other empty channels for SU while PU arrives. In this paper, channels reallocation technique based on DNA sequence alignment algorithm for CR networks has been proposed.Comment: 12 page

CIREBON CULTURAL CENTER DENGAN PENDEKATAN ARSITEKTUR HIJAU

Perkembangan Kota Cirebon semakin maju terutama dalam sektor kesenian dan pariwisata. Semakin berkembangnya kesenian di Kota Cirebon ini ditandakan dengan terdapat cukup banyaknya sanggar kesenian, di antaranya terdapat sebanyak 137 sanggar yang masihterdaftar di Disporabudpar Kota Cirebon. Di Kota Cirebon juga terdapat beraneka ragam kuliner khas Cirebon dan kebudayaan keraton yang merupakan salah satu peninggalan paling bersejarah selama Kota Cirebon berdiri. Yang paling terkenal dari kebudayaan dan kesenianCirebon adalah Kirab Budaya, Festival Keraton Nusantara, Festival Seni dan Budaya Pesisiran, Festival Gotrasawala, Sintren, Tari Topeng, dan Batiknya. Atas hal-hal yang telah dijelaskan di atas, salah satu usulan dari pemenuhan kebutuhan dan pemecahan permasalahan ini adalahdengan membangun sebuah Cultural Center di wilayah strategis Kota Cirebon dengan pendekatan Arsitektur Hijau sebagai wadah dari pusat kegiatan, pengembangan, edukasi, pelestarian, dan bentuk apresiasi terhadap peninggalan seni dan kebudayaan Kota Cirebon

Cross Layer Aware Adaptive MAC based on Knowledge Based Reasoning for Cognitive Radio Computer Networks

In this paper we are proposing a new concept in MAC layer protocol design for Cognitive radio by combining information held by physical layer and MAC layer with analytical engine based on knowledge based reasoning approach. In the proposed system a cross layer information regarding signal to interference and noise ratio (SINR) and received power are analyzed with help of knowledge based reasoning system to determine minimum power to transmit and size of contention window, to minimize backoff, collision, save power and drop packets. The performance analysis of the proposed protocol indicates improvement in power saving, lowering backoff and significant decrease in number of drop packets. The simulation environment was implement using OMNET++ discrete simulation tool with Mobilty framework and MiXiM simulation library.Comment: 8 page

Weak-antilocalization and Surface Dominated Transport in Topological Insulator Bi2Se2Te

We explore the phase coherence of thin films of the topological insulator material Bi2Se2Te grown through pulsed laser deposition (PLD) technique. The films were characterised using various techniques for phase and composition. The films were found to be of good quality. We carried out extensive magneto-transport studies of these films and found that they exhibit two dimensional weak antilocalization behaviour. A careful analysis revealed a relatively high phase coherence length (58nm at 1.78K) for a PLD grown film. Since PLD is an inexpensive technique, with the possibility to integrate with other materials, one can make devices which can be extremely useful for low power spintronics and topological quantum computation.Comment: 16 page

Stability of lyophobic colloids : XVII. Role of adsorption of ions on the stability of the sols of hydrous ferric oxide in the medium of varying dielectric constant

The adsorption of peptising and coagulating ions play an important role in defining the stability of a sol. We have investigated here the extent to which the stability of the sols of hydrous ferric oxide is affected by a change in the dielectric constant of the dispersing medium for H^+ and SO_4^2- as stabilising and precipitating ions. It has been concluded that it is not possible to explain the sensitisation or stabilisation of a sol on the views advanced by Weiser, as the adsorption of either of the ions is found to vary according to the dielectric constant values of the dispersing medium

Detection of Entamoeba histolytica DNA in the Saliva of Amoebic Liver Abscess Patients Who Received Prior Treatment with Metronidazole

Saliva is an easily-accessible and a non-invasive clinical specimen alternate to blood and liver pus. An attempt was made to detect Entamoeba histolytica DNA released in the saliva of amoebic liver abscess (ALA) patients by applying 16S-like rRNA gene-based nested multiplex polymerase chain reaction (NM-PCR). The NM-PCR detected E. histolytica DNA in the saliva of eight (28.6%) of 28 ALA patients. The NM-PCR result was negative for E. histolytica DNA in the saliva of all the eight ALA patients who were tested prior to treatment with metronidazole but was positive in the saliva of eight (40%) of 20 ALA patient who were tested after therapy with metronidazole. The NM-PCR detected E. histolytica DNA in liver abscess pus of all 28 (100%) patients with ALA. The TechLab E. histolytica II enzyme-linked immunosorbent assay was positive for E. histolytica Gal/GalNAc lectin antigen in the liver abscess pus of 13 (46.4%) of the 28 ALA patients. The indirect haemagglutination (IHA) test was positive for anti-amoebic antibodies in the serum of 22 (78.6%) of the 28 ALA patients and 2 (5.7%) of 35 healthy controls. The present study, for the first time, demonstrates the release of E. histolytica DNA in the saliva of ALA patients by applying NM-PCR