Search

Virtual reality and augmented reality technologies have been applied to scientific research for many years and the achievements are remarkable. Although the application area of mixed reality is relatively narrow comparing to the first two applications, we have initially seen results. However, in fact, these technologies can be applied in film and television creation far more than that. I then illustrate some other aspects which these realistic contents can also be applied to in film and television creation in the future and the influence on the industry.

The mobile robot with a capability of following human targets can be used in various ways in different environments. The main technologies of human following robot system contain human detection, trajectory tracking and following control. In this paper, we proposed a method to detect a person's legs by a single laser scanner, and applied random forest classifier to distinguish the legs from other objects. According to the laser scanner data and detection results, the target person with moving speed and relative to the position of the robot will be tracked through Extended Kalman filter (EKF) algorithm to get its moving trajectory. The following control algorithm used the continuous position of human as input and the velocity planning of mobile robot as output to implement the human following function. This method was experimented in office and long corridor, the results showed that the detection and tracking algorithms were accurate and robust, the mobile robot followed the target person correctly and smoothly. All of these functions had been implemented in the Robot Operating System (ROS) framework.

A new feedback control system concerning load error, zone control error and unit generation error is built through gathering area control error in Hubei grid and generation error in Hubei province in real time, combining ultra short term load forecast. This system guides real time dispatch and improves the whole performance indicators with control feature in Hebei province. In this paper, on the foundation of real time feedback system, feedback control step based on area control error ACE indicator and generation error indicator is added. Then, feedback control system based on grid ACE indicator gathering is built, associate real time dispatch target and assessment criteria to better satisfy the demand for grid assessment. Generation error gathering and feedback control system based on real time generation assessment is built to analyze and deal with the generation hysteresis quality caused by technique and human factor, so real time dispatch effect is improved.

The traditional battery gradually cannot play the role of the power source of remote micro-sensors and embedded microelectronic devices due to their rapid development. To power the microelectronics by harvesting the environment vibration energy becomes a popular technology. The piezoelectric energy harvesters are very promising because of their high efficiency. In order to protect the harvesting elements from collision, the safety working space of the harvesting structure should be taken into account of the output power-density. The real output power-density is introduced, which considers both piezoelectric body and safety working space. A power harvesting system consists of cross-distributing bimorphs with high real power-density is developed. The structure and working principle are introduced. The differences of working space requirement between the cross-distributing harvester and the traditional one are analyzed. The numerical result shows that the cross-distributing method can greatly improve the real power-density of energy harvesting system.

In this paper, based on the raw data from the patients in hospital, data are analyzed with the correlation analysis, multiple regression analysis, stepwise regression and so on. the correlation relationship between the initial insulin dosage of diabetes patients and sexuality, age, body high, weight, diet intake, amount of exercise, blood sugar, urine glucose, urine protein, blood creatinine, concurrent infection et al. are studied, and by stepwise regression analysis, and the relation formulate between Insulin dosage and its key influence factors: blood sugar and urine protein are derived, which may give some guide to clinical medical treatment.

Consider the characteristics of fluid-flow and heat-transfer high-speed permanent magnet machine, the 3D fluid model and heat conduction equation with axial ventilation duct are established. Meanwhile, the solution region and the corresponding boundary conditions under some assumptions are given. According to the theory of fluid mechanics, the temperature rise of stator for a high speed PM machine is calculated and analyzed by CFD software fluent. The stator temperature field is computed and the result is compared respectively with the result calculated by equivalent heat circuit method and tested value. The validity of the proposed method is confirmed.

In this paper, data are analyzed with the help of SPSS, correlation analysis and multiple regression analysis et al., which are based on the data from the patients in hospital. The correlation relationship between the preliminary insulin dosage about diabetes mellitus patients and sex, age, height, weight, dietetic quantity, motion quantity, blood sugar, urine sugar, urine protein, serum creatinine, infection et al. are studied, and the relation formulate between Insulin dosage and its key influence factors: blood sugar and urine protein are derived, which may give some guide to clinical medical treatment.