1.Study on the Scientific Research and its Corresponding Strategy for 34 third-grade class A hospitals of Fujian Province between the year 2001 and 2010
Ronghui JIANG ; Nan REN ; Xiaonan WU ; Qiuli CHEN ; Ping LIN ; Xuezhen CHEN ; Liuli DENG
Chinese Journal of Medical Science Research Management 2014;27(1):21-26
Third-grade class A hospitals undertake three tasks-medical service,scientific research and teaching.scientific research is the motivation for third-grade class A hospitals' continuous development and also an important symbol of their medical and academic level.On the purpose of evaluating overall scientific level of such hospitals this thesis analyze the scientific projects and the outcomes of 34 hospitals by using the method of literature research and questionnaire,extracting advantages for scientific research,seeking their problems and coming up with corresponding strategy.have analyzed the achievements we acquired as well as the problems still existing.According to the reality of Fujian Province,some suggestions are coming up with so as to improve the scientific research.
2.Structural Design and Penumbra Analysis of Dynamic Multi-leaf Collimator Leaf End.
Jun LYU ; Liuli CHEN ; Ruijun WEN ; Pengcheng LONG ; Leiming SHANG ; Liqin HU
Chinese Journal of Medical Instrumentation 2023;47(4):377-382
Dynamic multi-leaf collimator, which has the function of radiation beam shaping, is a key executive component of tumor precise radiotherapy, and plays a core role in improving the accuracy, efficiency and quality of radiotherapy. A new type of collimator leaf end structure with circular arc and plane combination was studied, and collimator penumbra performance analysis model combining analytical expression and graphic analysis was developed. The influence of leaf end structure on penumbra was analyzed quantitatively, and a set of three-dimensional structure design of dynamic multi-leaf collimator was completed. The feasibility of the structural design and analysis model was verified through experimental measurements.
Humans
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Radiotherapy Planning, Computer-Assisted/methods*
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Particle Accelerators
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Neoplasms
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Radiotherapy Dosage