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Objective To develop a nonaqueous electrolyte electrochemical detector in order to solve the problems of shorter average life span and operating temperature range in aqueous electrolyte electrochemical detector for unsymmetrical dimethyl hydrazine(UDMH).Methods Nonaqueous electrolyte was utilized in this kind of electrochemical detector comprised of n-mehyl-2-pyrrolidone with conductive compatible salts,such as tetrabutyl ammonium tetrafluoroborate,which had much lower evaporating pressure and freezing point than aqueous electrolyte ones.Three-electrode potential electrochemical system was also used,composing a sensing electrode,a counter electrode and a reference electrode.The three electrodes were all teflon-bonded diffusion electrodes which were prepared by spraying the noble metal catalyst dispersion onto the Teflon film.Results The experiment result showed that the average life span could be over two years compared with the aqueous electrolyte electrochemical detector of one year life span.Operating temperature range was expanded to-20 ℃～+40 ℃.However,the response time was nearly five minutes.Conclusion The detector can be used for leakage checking in the places where a large quantities of UDMH are used or stored.
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Objective To study a protective apparel with protective suit and protective mask in order to protect the operators using new HAN propellant in the course of storage, transportation and filling-up. Methods According to the character of it, polyurethane-coated (PU)polyester fabric was applied in the main part of protective suit and mask, and then anti-fog technology to deal with PU as window material. Results The performance test and probation evaluation of the protective apparel were met relevant standards of the technical specifications. Conclusion Through reasonable structure designing, the defects in the protective apparel were overcome such as bad permeability and large load. The protective apparel was characteristized by portable, comfortable, practical and so on. Furthermore, it enriches the protective system for the liquid propellant.
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Objective: To found national coping style norm for military personnel by means of the Coping Style Scale (CSS) .Methods: A test with CSS was carried out on 15380 military personnel stratified randomly sampled military personnel all over the country, and the result was analyzed by Factor Analysis, Correlation Analysis, Variance Analysis and T Analysis. Results:①The measure indexes of this scale in military personnel were; Cronbach a of the six part-scale was 0. 62-0. 80, plit-half reliable was 0. 53 -0. 79, test-retest reliability was 0. 66 - 0. 78 , and the cumulative of the six factors was up to 58. 29 % ; The factor loading of each factor was 0. 32 - 0. 56, 0. 38 - 0. 68 , 0. 31 - 0. 68 , 0. 30 - 0. 47, 0. 26 - 0. 55 and 0. 28 - 0. 59;②An MANOVA showed that on most factors of the CSS, both the main rank effect and the interaction between gender and military ages were significant;③Resolving problem, appeal and rationalization were different on rank significantly (P
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hObjective: To explore the character and its relevant factors of self- consistency and congruence of servicemen. Methods: 12221 servicemen were assessed by Self-consistency and Congruence Survey (SCCS), SCL -90, CSQ and common data forms. Results: ①The self - consistency and congruence level of servicemen was low (the mean of the total scores were 90. 0 ? 14. 8) .②There were significant different self - consistency among the different positions. The total scores of SCCS of officers were 86. 3 ? 14. 6, that of petty officers were 91. 6 ? 13. 8 and that of soldiers were 94. 0 ? 13. 2 ( P
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Objective: To test the reliability and validity of social support rate scale (SSRS) of servicemen in servicemen, and make a national norm. The developmental characteristics of servicemen were analyzed in gender, service years and military title. Methods: SSRS was employed to evaluate 13450 servicemen in 30 provinces or cities of China. Results: ① Items analysis; the correlation between each item score and the total score were in 0. 39-0.66 (P
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This paper introduces the progress and defects of monitoring and preventive equipments for liquid propellant in China. Then it evaluates the prospects of Chinese monitoring equipments, skin protective equipments, respiratory preventive equipments. A protective system is put forward at the end of the paper.
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Objective:To explore the effect of mental quality training on self consistency and congruence of military personnel in field army.Methods:397 military personnel in field army were randomly divided into intervention groups which received mental quality training(n=197)and control group which received normal training(n=197).Self consistency and congruence scale were used before and after the intervention.Results:After mental quality training,(1)the total scores of self consistency and congruence of training group were significantly lower than that of control group(93.2?10.3/95.5?11.8,P
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The production and the developing process , the technical principle and the characteristic of organism weak magnetic field analytic technology are elaborated, as well as the application on health maintenance testing and psychologi- cal testing in recent years. It is pointed that organism weak magnetic field analytic technology has high clinical reference value and the application value on some aspects, including sub-health state analysis, equilibrium state analysis of alimen- tation and metabolic balance, influencing analysis of heredity and environmental deleterious factors on health, analysis of tumor susceptibility, early warning and predict of body's potential disease and psychological condition examination.