Wireless sensor networks are attracting a great deal of research interest. One of the most interesting researches in these networks is localization of sensor NODEs whose accurate is a strong requirement in many applications. In recent years, several techniques have been proposed for localization in wireless sensor networks. In this paper, we present a localization scheme using only one mobile ANCHOR station with receiving signal strength indicator technique, which reduces average localization errors and execution time. The satisfactory simulation results and also comparison of localization errors and execution time between our scheme and similar previous schemes depicts the efficiency of proposed method against previous schemes.

Organizations need to make decisions to maintain, upgrade valuable forces, and make effective use of human resources to achieve development and success in today's changing environment. One of the most important steps that can be taken in this regard is to pay attention to job ANCHORs and to plan and implement strategies for personal and organizational goals. The main purpose of this research is to discover and validate the components of ANCHOR strategies of staff working in Tehran General Education Department. The statistical population of the study consisted of 15 organizational experts who were purposefully selected to implement the Delphi method to discover the underlying factors. Using Cochran formula, 270 individuals were selected by stratified random sampling. Internal consistency of item validity and composite validity index were used to validate and validate constructs (mean variance index and Fornell Larker index) as well as content validity for validation. Delphi method was used to identify the underlying factors and structural factors of job ANCHOR strategies and confirmatory factor analysis was used for validation. The research findings showed that staff ANCHORing strategies in the general office include: personal development strategies (psychological empowerment, talent management and surrogacy) and organizational development strategies (improving promotion and appointment system and improving performance appraisal system).

Positioning service is one of Wireless Sensor Networks’ (WSNs) fundamental services. The accurate position of the sensor NODEs plays a vital role in many applications of WSNs. In this paper, a 3D positioning algorithm is being proposed, using mobile ANCHOR NODE to assist sensor NODEs in order to estimate their positions in a 3D geospatial environment. However, mobile ANCHOR NODE’ s 3D path optimization is off the subject. Accordingly, 3D path planning is slightly involved as precision schemes to minimize error boundaries and fault probabilities on mobile wireless ANCHOR’ s dynamics of precision positioning. In order to analyze proposed 3D path planning scheme’ s performance, extensive WSNs simulations have been conducted using the NS-2 network simulator. Authors had to extend NS-2’ s functionality to support 3D geospatial systems, features and calculations. Results indicate that path planning algorithm in discussion, achieves landmark performance and accuracy in average positioning error and percentage of positioned sensor NODEs.

Location awareness is an important capability for a series of enhanced wireless businesses. sensor networks are dense wireless networks of small low cost sensors, which collect and disseminate environmental data, for monitoring, military application and so on. Localization is an unconstrained optimization problem. position estimation is based on various, distance / path measures, which include ANCHOR and non-ANCHOR NODEs. ANCHOR positions, have been predetermined to help us localize other NODEs. This study proposes using a combination of fuzzy techniques, and advanced APS method, to estimate unknown NODEs. In a network with twenty hundred NODEs of which twenty percent operates as ANCHORs. These NODEs localize the other one hundred and sixties. It is necessary to select the best four ANCHORs for localizing. We suppose that the ANCHORs neighbor to unknown NODEs are the best. It is time consuming to find the distance of unknown ANCHORs in such a widespread network. Using the fuzzy logic, putting the limitation of distance, and selecting the nearest ANCHOR to the unknown NODE, the nearest four ANCHORess can be selected. In this case the rate of localization error will be decreased due to selecting neighbor ANCHORs. Therefore, we can localize NODEs by using ad-hoc positioning system.Fuzzy rules help us to estimate position in less than 2.4 seconds with mean normal positioning deviation of z=0.4597.

As the number of independent countries increases and their economies become more integrated, we would expect to observe more multi-country currency unions. This paper explores the pros and cons for different countries to adopt as an ANCHOR the US Dollar, the Euro or the Yen. In addition, it addresses the question of how comovement of outputs and prices would respond to the formation of currency union and investigates the prospect of a Dollar, Euro or Yen currency union in the East and West Asia regions. For this purpose, we use data of 27 selected countries in East and West Asia during the period 1980-2006.Results show that the effective ANCHOR for most of countries based on volatilities (volatility of price and volatility of output) criteria is the US Dollar.

45 patients (40 male & 5 female) with recurrent anterior shoulder instability were operated from 1993 to 2001. The mean age was 27 years (18-46) and 95% were right handed and 5% left handed. Instability was on right side in 54.4% left side in 38.6% and bilateral in 6.9%. 15 pt’s were operated with classic Rowe procedure and 30 pt’s with using modified ANCHOR screw, and follow up period was 37.6 mounths (12-110), Bankart lesion was found in 100% of cases. Subscapularis muscle lesion, Interval lesion and capsular laxity in 9.3%, 14.5% and 47.6% respectively. Glenoid fracture and loose body in 2.9 and 29% respectively. In 75% of pt’s Hill-Sachs lesion was found that was moderate to sever type in 88%. At follow up study, First group (with no modified screw), there was no apprehension sign in 53.3% and redislocation in one patient and full range of motion in all cases. In secound group (with screw), no apprehension in 79% and no redislocation was found and range of motion was full in 93%. The first group has little or no limitation at their function in 90% and secound group in 96%. According to rowe scores, results were 53.3% excellent, 26.6% good 13.3% fair and poor in one case for first group and 69% excellent, 15.5% good and 15.5% fair without poor result in sceound group. In conclusion, using modified ANCHOR screw for bankart procedure is easy to do, needs less instruments, with low surgical trauma, shortoperation time, and low complication rate and over all good results.

Natural gas transmission pipelines transport the natural gas at elevated temperature and high internal pressure. The pipelines will expand when they are put into operation under the influence of increased internal pressure and temperature. The movement due to such expansion is significant for large diameter pipelines which operate at high pressure and elevated temperature. The pipeline needs to be restrained near compressor stations in order to prevent the transmission of such movement to equipment and facilities within the station. Concrete ANCHOR blocks are commonly used to restrain the movement of buried pipelines on both sides of compressor stations. ANCHOR blocks for transmission pipelines are usually massive because of the high axial stress in the pipe which results in large thrust force. Current design procedures are usually based on providing an adequate margin of safety against block sliding, block overturning and soil bearing pressure. This paper presents the results of an analytical study on the response of soil, pipeline and ANCHOR block at different operating pressure and temperatures. Nonlinear finite element analyses which include modeling of soil-pipe and soil-block interactions are carried out to evaluate the design procedures. The results indicate that the concept used in current design procedures is fundamentally flawed because it is based on controlling forces rather displacements. Based on the results of these analyses a more rational design procedure which is based on controlling the displacements is introduced. The proposed design procedure results in a substantial reduction of the size of ANCHOR blocks.

Background: The importance of dose in prostate radiotherapy is well known, and the dosimetric effects of radiotherapy in NODE-positive or NODE-negative patients with prostate cancer have become an important issue. Materials and Methods: Helical tomotherapy (TH) plans of 19 pelvic NODE-positive [THpn(+) plan] or NODE-negative [THpn(-) plan] patients with prostate cancer were retrospectively created in our clinic. In these plans, the beam angle was set to cover the planning target volume (PTV) of prostate cancer and minimize the dose to the organs at risk, including the bladder, rectum, femoral head, and bowel. Results: There were no differences in the conformity index, Dmax, Dmean, and homogeneity index of PTV between the THpn (+) and THpn (-) plans (p>0. 05). However, V95 in the THpn (+) plan was lower than that in the THpn (-) plan (p=0. 017). Moreover, Dmax, V75, V70, V65, V60, V50, V40, V30, and V20 for the rectum were not significantly different between the two plans (p>0. 05), whereas Dmean was significantly different (p=0. 025). Dmax, V70, V65, and V60 for the bladder were not significantly different between the two plans (p>0. 05), whereas V55, V50, V40, and V30 were significantly different (p<0. 05). Finally, Dmax and V50 for the femoral head and bowel were significantly different between the two plans (p<0. 05). Conclusion: The THpn (+)] and [THpn(-) plans achieved acceptable target dose coverage in prostate radiotherapy.

In order to solve some security issues in Wireless Sensor Networks (WSNs), NODE to NODE authentication method based on digital watermarking technique for verification of relative NODEs is proposed. In the proposed method, some algorithms with low computational for generation, embedding and detection of security ID are designed. The collected data packets by the NODEs are marked using security ID. In the proposed method, header is used to mark the packets. Since the nature of the sensor networks is cooperative, using the head of the packets is proposed for authentication. Also using the marked head can prevent from sending and receiving fake data in the other NODEs. Simulations have been performed in environments with imposing unrealistic data and having a probability from 1% to 10%. Comparing the proposed method with other methods shows that the proposed method in term of security, reducing traffic and increasing network lifetime is more effective.