We present the comparison of CDMA MAC protocol with and without beat noise by using 2-D optical CDMA MAC protocol over WDM networks. We use the asymmetric primehop sequence code. Moreover we analyse the effect of the number of available wavelengths in tenns ofaverage number of attempted to transmissions per time slot (offered load) and beat noise is considered. The presented numerical results based on the throughput and delay time versus the offered load. We divide into two parts. The first one we consider the effect of the number of available wavelengths. Another is the effect of with and without beat noise in the 2-D OCDMA over WDM systems.

The purpose of the study were to survey the academic staffs self-esteem on the expertise in eight academic disciplines specified as course syllabus technical teaching method educational measurement and evaluation teaching materials and teaching aids research and development knowledge of technical skill student advising and extension services. In addition the study was also to activity investigate the need for development with the suggestion of guideline for conducting the development program. The target population of the study were 479 academic staffs Rajamangala University of Technology in 9 faculty. The representative samples of 214 academic staffs were proportionally and randomly selected and samples size by Krejcie & Morgan. Data were collected by means of questionnaires and analyzed by descriptive statistics presenting in form of tables. The findings of the study were that all academic staffs rated at the high level in technical teaching method course syllabus knowledge of technical skill and student advising. Whereas the least was on research and development and the rest of the 4 areas were rated as fair by all. And academic staffs needs for academic development activities were training and workshop respectively. Academic staffs suggested that the development program should be specially organized depending on specific need or it could be a year planned one. However the strategy most recommended was the cooperation with private industry followed by the in house training program for at lest once per semester at the school break session.

The Research of this paper to propose the usage of Albizia lebbeck (L.) Benth. and Samanea saman Merill are fast-growing commonly found in Thailand. However these species of wood could not be utilized as structural components either economically or safely due to the lack of recommended values for their engineering properties. Therefore the objective of this research was to study their physical and mechanical properties based on statistical data obtained from 11 series of tests in accordance with ASTM 0-143. 0-198 and 0-1037. The number of samples for each test was large enough to ensure 99% interval of confidence. Then goodness-of-fit tests were performed for each set of data to achieve at least 95% level of confidence. Buildings analyzed included residences offices and schools. The buildings were limited to two-storeyed buildings with f1oor-to-f1oor height of 3.00 meters. Given to joists and beams were simply supported. Values of structural reliability were obtained by using accurate methods. Results from testing showed that engineering properties of both species of wood could be represented well by normal distribution. Reliability analyses and designs of wood sections for joists. beams and columns showed that designs of Joists and beams wWe controlled by deflection; whereas those of columns were controlled by buckling. Based on these reasons the governing basic variable for designs of wood sections was the modulus of elasticity (E). If the accepted value of failure probability (P) for serviceability limit states was set to be 10-4. the corresponding upper limit coefficient of variation (COV) of E would be 0.269. Similarty if the accepted value of P for Ultimate limit states was set to be 10~. the corresponding upper limit COY of E would be 0.210. Since COY of E for both species of wood were lower than limit COY mentioned above. they could be used safely as structural components. Proposed design procedures were similar to Working Stress Methods. The only difference from E.I.T. standard was live load. Instead of nominal live loads for residence. office and school as stated In the Municipal law. mean Ifve loads based on data gathered in Thailand were recommended. Wood sections obtalnec from numerical procedures proposed were as large as those obtained from WCCAL Software. Furthennore recommended wood sections and factor of safety (FS) were summarized in appendices. It was also interesting to note that the value of E for compression and tension parallel to grain of both species of wood could be used to predict the corresponding value of E for bending.

The purpose of the study were to survey A Tendency towards Undergraduate Innovation and Education Technology Application of the Instructors at Rajamangala University of Technology Phra Nakhon .Goal to development to innovation and educational technology for the future. Measurement and evaluation were to questionnaires in five academic in component form and use innovation and educational technology administration learning resource instructional and teching and system to learn . . The target population of the study were to 484 acadamic staffs Rajamangala University of Technology in 9 faculty .The represectative sample of 214 acadamic staffs were collected by means of questionnaires and analyzed by mean standard individual and descriptive statistics presenting in form of tables. The finding of the were that 1. Componen form and use innovation and educational technology transparency and overhead projector visualiz and video projector will be used for presentation 2. Administration oflice automation will be use for administrative purpose teleconference will be used for coinmunication and pulic relatio and intenet will be important learning resources. 4 learning resource will be web resource for instructional supprt and many kinds of digital learnind materials will also used. Internet online will be use by learners which will enable them to study at any times anywhereand used teleconference 5.Instructional and teching and system to learn The teacher will be encouraged to think analyze and development learning activity to student think analyze discovery to reference electronics in library.For the teaching to think that a Tendency towards Undergraduate Innovation and Education Technology intemet will be used by learner which will enable thern to study at any time anywhere. More learning centers will also be established in various institutions.

The purpose of this research is to study Development of Computer ted I nstruction Subject Change Management and to find out efficiencies Satisfac on towards the package. The research tools were : 1) Development of Computer Assisted Instruction Subject Change Management 2) Achievement tests 3) Quality a sessment and evaluation form for multimedia software and 4) Questionnalre of leamers satisfaction Sampling groups composed of 62 Bachelor degree (4 years) Faculty of Business Administration Rajamangala Unniversity of Technology Phra Nakhon Researchresulty revealed that the effciency of the Computer Instruction Package was at E1 / E2 = 81.65/82.39 corresponding with 80/80 creteria. Analysis to man of satisfaction of the sampling groups was rather at 4.18. It could be concluded that the Development of Computer Assisted Instruction Subject Change Management had the efficiency that could used for self study