Horizontally-Configured Ground-Test Method for Tethered Satellites

2002 ◽  
Vol 48 (1) ◽  
pp. 97-106 ◽  
Author(s):  
F W Schultz ◽  
F R Vigneron ◽  
A M Jablonski
2014 ◽  
Vol 44 (6) ◽  
pp. 589-596
Author(s):  
Qing MO ◽  
Lu WANG ◽  
JianYin MIAO ◽  
ZiJun LIU ◽  
YanChao XIANG ◽  
...  

2014 ◽  
Vol 623 ◽  
pp. 3-9
Author(s):  
Yuan Zhao ◽  
Hong Jie Cheng ◽  
Yan Liu ◽  
Zhao Jun Wu

According to handling stability problem in using process of special vehicle, its evaluation test method is researched and analyzed. Referring to national profession norm, the on-line detection system of handling stability of special vehicle is constructed, and the design idea of evaluation software is also illustrated. Finally, based on the constructed testing system, the proving ground test of special vehicle is carried out, including the transient response test of steering wheel impulse input, the test of steering wheel returnability, and the steady static circular test. The test results indicate the feasibility and validity of the constructed test system, which provides technical support for detection on-line and fast evaluation of handling stability of special vehicle in riding process, and enhance the road safety during the riding process of missile weapon system.


2018 ◽  
Vol 198 ◽  
pp. 02001
Author(s):  
Shaoming Yu ◽  
Tian Lu ◽  
Guo Wei ◽  
Yanping Hu

Through the study on the vibration characteristics of the typical pipe, it tries to provide the basis for the pipe design and the pipe ground test method. A typical pipe is selected. First, modal analysis is carried out through theoretical analysis and finite element simulation. Then, pipe vibration is studied by finite element simulation and test. The results show that the theoretical results in modal analysis coincide well with those in finite element simulation. The finite element simulation and experimental results are basically consistent in vibration analysis. The reason for the difference is mainly the ideal boundary of simulation. The combination of finite element simulation and test is an important method for the research of pipe reliability and environmental adaptability.


2014 ◽  
Vol 1025-1026 ◽  
pp. 137-142
Author(s):  
Yu Fei Cai ◽  
Chun Ling Zhu ◽  
Su Qing Shi

A ground test method of the heat exchanger in intake is proposed using simplified method. A theoretical analysis was carried out to investigate its influences on the performance of heat exchanger. The results show that the performance of heat exchanger keeps invariable with the density of gas if the temperature and mass flow rate remain the same. The error caused by substituting total pressure of free stream for inlet entrance was analyzed and the results show that for subsonic inlet the experimental error is relatively small and the experimental error increasing rapidly as flight Mach number exceed 1.2 and flight altitude has little impact on the experimental error while the error increasing slightly with flight altitude.


2019 ◽  
pp. 52-56
Author(s):  
Yu.F. Glukhov ◽  
N.V. Krutikov ◽  
A.V. Ivanov ◽  
N.P. Muravskaya

We have studied and analyzed status and metrological supervision of blood glucose monitors, individual devices for a person’s blood glucose level measurement. It has been indicated that nowadays blood glucose monitors like other individual devices for medical measurement are not allowed to be involved in telemedicine public service. This accounts for absence of metrological supervision with these measurement devices in telemedicine. In addition, the key problem is absence of safe methods and means of remote verificaition, calibration and transmission of measurement data to health care centers. The article offers a remote test method for blood glucose monitors using a number of resistors with values correlating with measured blood glucose level. The available method has been successfully trialed in real practice.


Author(s):  
Tran Minh Hieu ◽  
Nguyen Duong Ngoc Mai Chi

This study applied SERVQUAL scale of Parasuraman et al to measure factors affecting customer satisfaction on service quality at Vietnam Technological and Commercial Joint Stock Bank - An Giang Branch (Techcombank An Giang). The study was conducted to survey 207 customers who have been using the service at Techcombank An Giang. The survey results were analyzed by the Cronbach's Alpha reliability test method, then used Exploratory factor analysis (EFA) to verify and evaluate the scale of service quality. The results of the regression analysis show that customer's satisfaction about service quality at Techcombank An Giang includes four factors: The factor with the highest level is the Empathy with Beta = 0.253, the second of factor is the Responsibility with Beta = 0.248, ranked third in the influence level is the Tangible with Beta = 0.235, and the lowest impact level is the Reliability with Beta = 0.144. The research also uses statistical methods to describe and test the differences of demographic factors with customer's satisfactionon service quality.The analysis results show that there is no difference between customer's satisfaction on service quality and factors such as gender, age, income, number of transaction banks, regular transaction banks, and time to use the service at Techcombank An Giang. Through the research results, the author would like to propose some ideas to improve the quality of services, thereby attracting new customers and importantly, keeping traditional customers because the development orientation of Techcombank is to take care of old customers to cross sell other products of the bank. The Stud results offer a basis for the branch to identify the factors influencing customer satisfaction on their service quality, thereby having an appropriate strategy to improve customer satisfaction.


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