Academic Science Journal

In the present work we modulate a mathematical function to use it as a target function to represent the magnetic field distribution for the double pole-pieces magnetic lens. This function has, in fact, two optimization parameters. The only important parameter is the half half-width of the field for the proposed magnetic lens, which can affected objective properties, when the other one optimization parameter (lens length) is constant, which is the literature survey proved that unaffected on the lens properties. Results have clearly shown that the optimization parameter for current function has a considerable effect on the lens aberrations, and the reconstructed pole-pieces.

In this paper we give further results about concerning certain to fuzzy continuous functions defined from fuzzy topological space to another fuzzy topological space and to show the relationships between fuzzy continuous functions where we confine our study to some of their types such as, fuzzy -continuous function , fuzzy strong -continuous and fuzzy -continuous function.

We have studied the effect of gamma irradiation by three doses (17.64, 35.28 and 52.92 Rad) on optical transmittance, reflectance, absorption coefficient, energy gap , refractive index and the extinction coefficient for (Mn2O3)1-x (CuO)x with (x=0.5) thin films which were prepared on glass substrates by chemical pyrolysis technique. From the analysis of the absorption and transmission spectra in the wavelength range (300-900 nm) we found that the irradiation changes the optical properties under investigation in this study. The results show that the energy gap (Eg) increase with increasing of radiation dose .

Thin films of ZnO and Mg doped ZnO were prepared by chemical spray pyrolysis. . The
optical energy gap was increased from (3.27-3.54) eV as the Mg content increases, while all
the optical parameters show a reverse behavior, that n, k,  1,  2 and σ decrease as the Mg
content increases. These films were characterized through the use of XRD technique. The
results are found to be corresponding to polycrystalline and show a wurtzite hexagonal crystal
structure, with a preferred orientation along the ZnO (002) plane.

The complexes of some Schiff bases derived from p-N,N-dimethylaminobenzaladehyde and some p-anilines derivatives were used as charge donor withTetracyano-p-quinodimethane(TCNQ) and2,3-dichloro-5,6-dicyano-1,4- benzoquinone (DDQ) as acceptors in 1,2-dichloroethanehave been study by UV-visible spectrophotometer . The physical parameters such as ionization potentials of Schiff bases and dissociation energies of charge transfer complexes excited state have been calculated at max. By using Benesi- Hildebrand's equation , the equilibrium constants and molar extinction coefficient for CT complexes also determined .Molecular compounds with acceptor are formed through n→*transition .The effect of temperature on the equilibrium constant and other thermodynamic parameters and the conductivity for the interaction of Schiff bases and TCNQ and DDQ (CT complexes) in C2H4Cl2 solution have also been considered.

In the present research, the homogeneity tests were conducted for 36 meteorological stations records throughout Iraq. For this purpose, monthly and annual total rainfall records at stations operated by Iraqi meteorological organization and seismology (IMOS) from 1981 to 2010 were considered. Four methods namely standard normal homogeneity test (SNHT), Buishand range test, Pettitt test, and von Neumann ratio tests were chosen to detect the inhomogeneity of the rainfall time series. The results of each of the testing methods were evaluated separately at a significance level of 95% and the inhomogeneous years have been determined. With the application of the four mentioned methods, inhomogeneity was detected at 30% of stations (11 stations) and 70 % of stations (25 stations) were found to be homogeneous. The results of the different tests are condensed into three classes: ‘useful’, ‘doubtful’ and ‘suspect’. A qualitative interpretation of this classification is given, 31 stations were assigned as useful, two stations were labeled as doubtful and three stations were assigned as suspect.

In this paper it has been design a Reticle with Dual-Pattern RDP by using Auto-Cad program as. RMP is a circular disc which has a radius R equal to 6 cm, consists of two patterns. The first pattern (r=6 cm) is divided to 60 transparent and 60 opaque sectors (q). The second pattern(r=3 cm) is divided to 15 transparent and 15 opaque sectors. To explain the impact of changing angular velocity, it has been a set up circuitry for using the photodiode. The results obtained by establishment of a special program named “Reticle with Dual-Patterns RDP “using the language Microsoft Visual Basic 2005 contains many parameters. This paper proposed a new method to generate wide range frequencies by control the angular velocity of reticle RDP by the motor, and it is very important to get the proper frequency detector. The results obtained showed that reticle RDP work with high performance when the value of MTF still maintain fixed rates, also the optimal value of MTF is obtained at low chopping frequency.

In this work: Oxazole derivative (1) were prepared from reaction histidine with acetic anhydride ,which on treatment with thiosemicarbazide afford Schiff bases (2),and then two methods are used for Schiff bases fusion ,one of them fusion to obtained imidazole derivative (3) ,while the other method treatet with chloro ethyl acetate to obtained oxoimidazole derivative (4).Imidazole derivative(5) were prepared by fusion oxazole derivtive (1) with o- phenylene diamine. Finally oxazole dreivative (1) treated with hydrazine hydrate gave imidazole derivative (6),which on treatment with aldehyde afford Schiff bases (7a,7b). The structure of the newly synthesized compounds was confirmed by M.p, elemental analysis, IR spectral data. All these synthesized compounds showed in Scheme (1).

In this study, DNA microarray (DNA Chip) technique has been used in tecqnical chemistry depratment from univeristy of Hannover-Germany. This technique was used to study the gene expression of 96 genes of E. coli under two different temperature conditions at ( 37 °C and 50 °C ) for 10 min. Thus, the heat shock response of E. coli was observed, that most of genes were up regulated, except only 12 genes were down regulated.

Objective of this research is an investment Bluetooth in the exchange of information (send and receive information) as an electronic service on numerous projects including e-government that this technique provides users with easy exchange of information in several locations at the same time and at very low cost. Because of global interest in this technology in the necessity used in many electronic devices that supplied this technology, especially computers and accessories in addition to mobile phones and many devices video and audio and the fact that this service information is exchanged wirelessly any transmission of information between electronic devices via Ether making this information is subject to receipt by the people their devices equipped with Bluetooth had to be thinking of finding a means of keeping those data sent through the building security system using one codecs complex was chosen as the encryption system flowchart (Stream Cipher) for the purpose of encryption texts clear before sending over the air has owned this high degree of complexity of the system from which you can send any data to be exchanged within the geographical area, taking into account the capacity and access point to the desired location by the presence of a number of alternatives for the purpose of strengthening the signal and access to the farthest place. With this system off the message and received points where they were building an address (Protocol) for both parties in order to enable the sender of encrypted data and also enables the recipient encrypted data from solved in an easy way without making a lot of effort.

The purpose of this study was to examine the effect of cigarette smoking on serum oxidative damage , antioxidant status in healthy subjects . Subjects were randomly chosen from Baquba community. Smoker( n=86) was defined as a person who had smoked 10 or more cigarettes per day continually for at least one year(1) , while non-smoker(n=39) was a person who had no previous smoking experience . The results show that the serum MDA levels were significantly higher ( p<0.05) in smokers compared with non smokers and lower significantly(p<0.01) serum glutathione , superoxide dismutase and catalase activities were in smokers than in non smokers. Thus increase levels of serum MDA and decreased antioxidant activities may be important in determining the oxidant / antioxidant imbalance in smokers

Classical ciphers were first used hundreds of years ago. As far as security is concerned, they are no match for today’s ciphers; however, this does not mean that they are any less important to the field of cryptology. A cipher system is one for which applying encryption algorithm to plaintext produces cipher text. The weakness with this strategy is that cipher text frequency distribution is not significantly altered by the encryption process. Swarm Intelligence (SI) is an artificial intelligence technique based on the study of collective behavior in decentralized and self- organized systems. This paper uses one of swarm intelligence optimization algorithms called Artificial Bees Colony (ABC) algorithm as an intelligent cryptographic tool to enhance the security of simple cipher system. An image data are used as the seed keys for the proposed cipher system, while the ABC algorithm is used to obtain the randomness for these keys. The results are successfully tested with randomness tests.

This paper is presenting framework for Agent based fireworks integration over the emerging cloud computing environment, where Agents will be able to exploit knowledge gained by other Agents who live anywhere. The new model presented here introduces the idea of building global platform for Agents, and this global platform will represent the gateway for all Agents around the world. SOAP MTP driver has been used to grant Agents the ability to talk to web services and then deliver messages over the internet. Proxy Agents are managed by web services to provide environmental functionalities analogous to JADE (Java Agent Development environment). The presented model grants Agents the ability to globally develop knowledge and share experience.

Nanocrystalline ZnS films grown on glass substrates by chemical bath deposition technique (CBD) using the mixed aqueous solution of zinc chloride, thiourea and ammonia at 80 °C and pH=10 for different deposition time. The characterization of thin films was carried out for the structural and optical properties using X-ray diffraction and UV-VIS spectrophotometer. A UV-VIS optical spectroscopy study was carried out to determine the optical band gap of the nanocrystalline ZnS thin film and it found to be higher (3.8 eV) compared with respect to the bulk value. In present work effects of deposition time on the structural and optical properties of CdS nanocrystalline thin films were studies.

Diabetic foot (DF) is serious diabetes (DM) complication leading to delayed wound healing and may result in amputation. Osteoprotegerin (OPG) is a glycoprotein decoy receptor of RANKL(OPGL), involvement of OPG in the pathogenesis of diabetic complications has been proposed. Interactions OPG/OPGL has been proposed to be a major inhibiter of osteoclastogenesis (differentiation of osteoclasts cells),and OPG also has a role in the regulation of the immune response . This study was done to investigate whether the serum levels of circulating soluble osteoprotegerin, glycoprotein associated with the apoptosis, are altered in patients with type 2 diabetes whom have diabetic foot ulcerations. Osteoprotegerin was measured with the ELISA

Impetigo is a contagious superficial pyogenic infection of the skin , caused by Staphylococcus aureus or Streptococcus pyogenes and some times proteus mirabilis , different antibiotics was used for the treatment of impetigo , given topically or systemically .