As the new technology of test and diagnosis, condition monitoring and health management has been the core system of autonomous logistics of military equipment, and it has important role in ensuring ...the combat readiness, improving the operational effectiveness and reducing the total cycle cost of equipment. In this paper, focused on the condition monitoring and health management of active electronically scanned array antenna radar, the layered architecture of health management is constructed. By information fusion and health assessment of the character of radar detection range and antenna side lobe level (SLL), the condition monitoring and health management of AESA radar is realized.
This paper considers the problem of global practical tracking via state feedback sampled-data control for a class of uncertain nonlinear systems. Under a lower-triangular linear growth condition, a ...sampled-data state feedback controller is constructed such that the states are globally bounded and the error between the system output and the reference signal will be rendered smaller than a given tolerance. The proposed state feedback sampled-data controllers are linear and can be easily implemented in practice.
Orientation and position information are indispensable in mobile robot navigation. In this paper, a novel polarization sensor for getting orientation information is introduced. It exports an absolute ...azimuth angle. To take it effect in mobile robot navigation, a fuzzy logic controller is designed. It can direct the robot walking along the designed trajectory according to the information from the polarization sensor. Assisted by the wheel encoders, some navigation experiments are implemented outdoors. The result indicates that the error of the polarization sensor is independent of the travel distance and it can play an important role in automatic navigation system in a further way.
Doxycycline is the preferred recommended second-line treatment for the treatment of early syphilis. Recent reports showed a declining efficacy trend of doxycycline in treatment of early syphilis. The ...aim of our study was to assess the serological response to the treatment for early syphilis with doxycycline compared with benzathine penicillin G and evaluate whether doxycycline is still an effective agent for the treatment of early syphilis. A record-based retrospective study was conducted. Patients were diagnosed with early syphilis in an sexually transmitted disease (STD) clinic from January 1, 2008 to December 31, 2014. They were treated with a single dose of benzathine penicillin G 2.4MU or oral doxycycline 100 mg twice daily for 14 days. Pearson’s chi-squared test was used for data analysis. 601 cases were included in the final study sample: 105 (17.5%) patients received a 14-day course of doxycycline (doxycycline group), and 496 (82.5%) patients received single-dose benzathine penicillin G (BPG group). The serological responses at 6 months and 12 months after treatment were compared. No statistically significant differences were found between the two groups at 6 months (69.52% vs. 75.00%, P=0.245), and at 12 months (92.38% vs. 96.17%, P=0.115). Doxycycline is still an effective agent for the treatment of early syphilis.
碩士
亞洲大學
光電與通訊學系碩士在職專班
100
Today, how to raise the efficiency of fabrication, reduce the price of product and enhance the quality of service are quite critical issues and targets for many departments. ...To achieve these attractive goals, governmental offices, industrial corporations and academic institutions have proposed various approaches to conquer problems incurred from those objectives mentioned above. One of the effective methods to overcome difficulties of these issues might be information/data digitized. However, to realize such desirable features comes at higher cost, such as more investment of equipment purchase and more mechanics of equipment maintenance. A possible and effective means to relieve those problems is the application of wireless radio frequency technology.
Radio frequency identification (RFID) is attracting an ever-increasing interest and plays key role today for its potentiality of data processing at short notice for which it is very momentous for quick data acquisition in wireless techn
