No abstract available.
Research Design*

No abstract available.
Research Design

In a clinical controlled trial involving repeated measures of continuous outcomes such as quality of life, distress, pain, activity level at baseline and after treatment, the possibilities of analyzing these outcomes can be numerous with quite varied findings. This paper examined four methods of statistical analysis using data from an outcome study of a clinical controlled trial to contrast the statistical power on those with baseline adjustment. In this study, data from a CCT with women with breast cancer were utilized. The experiment (n=67) and control (n=74) were about equal ratio. Four method of analysis were utilized, two using ANOVA for repeated measures and two using ANCOVA. The multivariate between subjects of the combined dependents variables and the univariate between subjects test were examined to make a judgement of the statistical power of each method. The results showed that ANCOVA has the highest statistical power. ANOVA using raw data is the least power and is the worst method with no evidence of an intervention effect even when the treatment by time interaction is statistically significant. In conclusion, ANOVA using raw data is the worst method with the least power whilst ANCOVA using baseline as covariate has the highest statistical power to detect a treatment effect other than method. The second best method as shown in this study was in using change scores of the repeated measures.
Research Design

Medical electrical equipment--modular alarm system to meet YY 0709-2009 requirements and design, through the design of both hardware and software, low/medium/high three priority audible alarm visual alarm information to be verified by testing the same time, now the alarm system has been put into use on a portable infusion device remote microcomputer systems.
Clinical Alarms ; Equipment Design ; Software Design

The first step of bacilli culture is inoculation bacteria on culture medium. Designing a device to increase efficiency of inoculation is significative. The new device is controlled by SCM. The stepper motor can drive the culture medium rotating, accelerating, decelerating, overturn and suspending. The device is high practicability and efficient, let inoculation easy for operator.
Bacteriological Techniques ; instrumentation ; Equipment Design ; Software Design

This paper presents a design of the control system for the Q-switched Nd:YAG laser, which is based on S3C2410, and the emphasis is laid on its hardware & software's design. The LCD interface with the function of a touch screen is implemented by the Qt/Embedded graphical interface application programs.
Equipment Design ; Lasers, Solid-State ; Software Design

In this paper, We designed and accomplished a low frequency pulsed strong magnetic fields generator, which provides a pulsed magnetic field with the intensity range from 0.1-2.5 T and the adjusted time interval of pulse. This device is easy to operate and performs reliably. It can work steady for a long time and has been successful used in the experiments of biological effects of electromagnetics.
Electromagnetic Phenomena ; instrumentation ; Equipment Design ; Software Design

Computer-Aided Design ; Denture Design ; Humans

This article describes the design and development of an ultrasonic power meter which is consist of an electronic balance, a practice target, an acoustic enclosures and a blocking. The electronic balance mounted on the blocking is linked with the practice target by connecting rod. By adjusting the blocking makes the practice target suspended above ultrasound probe, and then the ultrasonic power can be measured. After initial tests, the ultrasonic power meter performanced with good stability and high precision.
Equipment Design ; Ultrasonics

Design otolaryngology chair's up-down assemble by applying link mechanism. And analysing the speed and accelerate of mechanism in CATIA's motion mechanism module to verify its actual running status. Draw the effective design, make the successful prototype.
Equipment Design ; Otolaryngology ; instrumentation