In this paper a novel fractal shape structure is introduced. Application of the proposed fractal shape to a square patch antenna represents a very good reduction size in comparison to the previously reported works. To compensate for the reduction in the antenna bandwidth, which occurs during the miniaturization process, the T-probe feeding method is used. By using this feeding method, the impedance bandwidth of the antenna is increased, which makes the antenna appropriate for PCS applications in the frequency range of GSM 1900. The effects of various parameters of the feed structure on the input impedance of the antenna are also presented in this paper. In order to validate the simulation results, the antenna was fabricated. The results of testing and measurements of the fabricated antenna in the antenna Laboratory of Iran Telecommunication Research Center (ITRC) verified the simulation results.

Introduction: Regional anesthesia today is the method of choice for the disease in a surgery. In keeping with this type of anesthesia, appropriate sedation reduced patient fear and anxiety and raises the quality of Regional anesthesia. For several years, various methods of Sedation have been used that the substantial progress has made over time. In this study, we have tried to satisfy surgeons and patients during surgery in patients who had received sedation with the Patient Control Sedation (PCS) method.Materials and Methods: In this study, seventy-two patients with ASA class I and II selected who were volunteers for surgery with cataract (feco). Patients were divided into 2 groups of 36 people randomly. First, for each patient, an IV was inserted and 500 cc of normal saline was injected. Propofol at doses of 20 mg/kg/min and Remifentanil at doses 0.02 mg/kg/min administered to patient that start sedation was 5 min before local injection.In case of request of the patient as Bolus with five minutes lock out time, sedation drug included 0.15 mg/kg Remifentanil and 50 mg/kg Propofol injected. According to the training that was given before operation, in separate group if the patient felt pain during the surgery with raising left hand to receive Remifentanil and if felt anxiety with raising right hand received Propofol. Patients in the combination group either pain or anxiety with hands up anyone who received the drug at the same time. Therefore, by failing to inform the patient of the injection, single blind study was conducted.Results: Satisfaction of the surgeon, anesthesia technicians and patients in both methods were non-significant differences in the separate group, the number of requests for analgesic was 2 times more than the number of requesting for sedative. In terms of the number of patients requesting drug and the number of applicants, there was no significant differences between two groups. Although the amount of Remifentanil used in the two groups showed non-significant difference, in the combination group total dose of Propofol was significantly higher than separate group Conclusion: By taking fewer amounts of analgesic and same sedative in both groups, separate groups as the combination group could be an effective way. In terms of the surgeon, patient satisfaction, anesthesia, technicians, and security techniques used in both groups, there was no significant difference.

The continuity of every business depends on rational economic profit, and the amount of economic profit is directly related to efficiency. For management and comparison of similar decision making units (DMUS), relative efficiency is usually used. Tow methods are generally used for efficiency measurement, ratio Analysis and Efficiency Bound Analysis. In the Efficiency Bound Analysis method, at first a boundary is made via the information from the best producers or service providers, so that any activity above this boundary is considered the best performance, and any activity below it is viewed as inefficiency. One of the methods of estimating Efficiency Bound and measuring Relative Efficiency is Linear Programming, which is also called Data Envelopment Analysis (DEA). In this research at first by obtaining the views of the extperts and using pairwise comparisons, the researchers determined the indexes effective on the relative efficiency of toll switched exchanges (Sc/PCS). Next, the relative efficiency of 39 Sclpc was measured in the constant and variable Return to Scale (CRS, VRS) conditions. Also, additional measurements of DEA and Anderson Piterson (AP), Multi Criteria Decision Making (MCDM) and fuzzy MCDM (FMCDM) were used for ranking Sc/PCS. The results indicate that in CRS conditions, the average of relative efficiency is 80.23 percent, and that 11 sc/PCS out of 39 Sc/PCS have 100 percent efficiency. Likewise, in VRS conditions, the average of relative efficiency is 97.77 percent, and 25 Sc/PCS out of 39 Sc/PCS have 100% efficiency. An other results of this research indicates that, the moment coefficients of Manpower, Quality of Services and Maintenace have been calculated. The amounts of them are ranked with 0.424, 0.334 and 0.242.

development of social and economic infrastructure in every region is of the basic requirements of economic growth. Infrastructure stimulates economic activity, enhance the productivity of private sector’ s inputs, improve economic performance and thus sustainable economic development, enhancing the social welfare and better income distribution. Since the different kind of infrastructure has different effects on the sectors of the economy and then on regional development, examining the effect of infrastructure on regional economic development in various economic sectors for policymakers and planners is of particular importance. In this regard, the production function for different sectors (industry, services and agriculture) for the 30 provinces of Iran for the period 2007-2013 is estimated. Production function by the Panel Corrected Standard Errors (PCSE) method is estimated. Results show that social and economic public infrastructure has a positive impact on the economic growth of these sectors. Furthermore, the result indicates that the impacts of different kinds of infrastructure are different on various sectors of the provinces. That is the impact of social infrastructure on industrial and service sectors are more than an economic infrastructure. On the other hand the economic infrastructure has more effects on the agricultural sector compared to other infrastructure.

There are some definite Information, goods and money flows in world and third millennium commerce management depends on facilitation, control, and organization of these flows. Based on the philosophy of utilizing information systems and mechanization of maritime, port, customs and financial affairs; commercial ports all around the world have designed and implemented several systems. But because of continuity of goods, information and also finance flows, the necessity of port systems integration has been the main concern of ports and world top ports have taken some steps toward consolidation of port community stakeholders via establishing comprehensive systems as well as developing interface standard systems. Due to the development of electronic commerce and benefits of electronic business systems, port community organizations have to prepare information systems for their executive and managerial affairs. Also, because of the importance of facilitation of information and communication flows, system integration has been the only choice ahead; and therefore, Iranian ports should also move toward establishing Port Community System (PCS) which acts as a connector between different port community systems in an integrated form. Since port community system is an inter-organizational system in the field of electronic commerce and it is very necessary to consider message transfer international standards in such a system, Critical Success Factors (CSF) in implementation of such systems have been defined and prioritized in four aspects.1. Studying international frameworks and standards (in the field of electronic commerce and business) in implementation of PCS and Single Window2. Studying foreign ports which have implemented PCS and/ or Single Window (Best Practice)3. Studying the implementation of Enterprise Total Systems4. Interviewing with experts of stakeholders organizationsFinally, after the implementing and assessing the effects of independent variables (Critical Success Factors) on realization of them and finally prioritizing critical factors based on their degree of effectiveness and importance, the success and effectiveness of PSC (as dependant variable) has been discussed.

Most properties of nanoparticles are size-dependent. In fact, the novel properties of nanoaprticles do not prevail until the size has been reduced to the nanometer scale. The particle size and size distribution of alumina nanoparticle, as a critical properties, have been determined by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), surface area analysis (BET) and x-ray diffraction peak broadening analysis. The particle size was found to be in the range of 5-95 nm. Cumulative percentage frequency plot of the data extracted form TEM images indicates that particle size distribution obeys the log-normal function. The TEM images also reveal that particles are spherical in shape and loosely agglomerated. Comparing of the XRD and TEM results shows that the particles are single-crystal. The HRTEM images also verify that the particles have a single-crystal nature. In comparison, there is a good correlation between the BET, XRD and TEM measurements other than PCS that is sensitive to the presence of the agglomerates.