Numerical simulation research on surface radiation heat calculation of spacecraft in orbit whole course

The surface radiation heat simulation program based on Microsoft VC++ 6.0 for spacecraft in whole orbit course was presented.Due to complexity of spacecraft structure,the spacecraft structures were decomposed to relatively regular parts.Automatic generation of calculation grid was conducted by using structured grid and unstructured technology.Simulation mainly solved automatic grid generation for arbitrary surface and data transmission between arbitrary shape interfaces,and the geometry structure,physical process,calculation accuracy and efficiency were considered.View factors and radiation transfer coefficients were calculated by combining finite element method and ray uniform distribution.According to the position of surface cells,external heat flux was calculated with integral method for non-shaded surface and with ray uniform distribution method for shaded surface.As the spacecraft surface was wrapped with multilayer insulation material,the temperature field of multilayer insulation material was calculated with nodal network method and finite volume method.The temperature of other parts without wrap was calculated with finite element method.The temperature of unconnected regions available with radiation heat transfer relations was analyzed,and the calculation formulae were deduced.Numerical experiment shows that the simulation program is correct and effective.

Establishment of Integrated Diagnosis and Treatment and Whole-Course Management Model of Major Depressive Disorder

Integrated diagnosis,treatment and whole-course management model of major depressive disorder(MDD)is an integrated drug-psychological-physical comprehensive treatment model based on rapid biological-psychological-social evaluation for treating patients with major depressive disorder.This paper comprehensively evaluates the clinical efficacy and biochemical indexes of patients,and carries out symptom evaluation,problem classification,disease diagnosis and etiological analysis of visitors from the three dimensions about physiology,psychology and society.Then,according to the symptoms and causes of different dimensions,this paper formulates personalized drug,psychological and physical therapy programs,and constantly optimizes and adjusts the treatment plan in the treatment process,so as to cure both the symptoms and the root causes,providing a reliable strategy for the treatment of clinical MDD,and establishing a standardized characteristic model for further promotion and application of this technology.At present,the project has been used in the member units of Taihe Medical Group and Shiyan City and its surrounding areas,the market response is good,and will be gradually promoted to the whole country in the later stage.

Research Progress on Effective Implementation of Whole Process Nursing Model for Patients with Cervical Cancer

Cervical cancer has a high mortality rate in clinic.This disease seriously threatens the physical and mental health and life safety of patients.At present,radical surgery is mainly used for treatment,but in order to reduce the incidence of intraoperative and postoperative complications,corresponding nursing needs to be coordinated.This time focuses on the complications after radical surgery for cervical cancer,and puts forward the nursing methods of common complications of transabdominal radical surgery for cervical cancer.In order to improve the quality of nursing and life of patients,this paper summarizes the effective implementation of the whole process nursing model after cervical cancer surgery.