The characteristics of human body impact response and several impact test objects are analyzed.The strengths and weaknesses of different research methods applied to different human landing impact test objects are contrasted.The relevant experimental findings and evaluation criteria of domestic and international tests on human landing impact are analyzed.The results show that the selected human substitutes in several research tests have some flaws, so it is urgent to formulate regulations on the load characteristics, individual characteristics, the posture of the test object and the protection status, and it is recessary to study impact tolerance and protective methods of corresponding operating personnel for different transports.

Objective To investigate the relationship between psychological quality and performance capacity of the crew in armored equipment so as to provide scientific evidence for the training of crew .Methods The psychological quality of 82 crew members of armored cavalry was tested and analyzed by neurobehavioral testers and questionnaires .Results and Conclusion The education level and age had no significant effect on the performance capacity among the armored crew . The test results of psychological quality parameters showed the same trend as the performance capacity of the crew , but their psychological health status had obvious effect on the performance capacity .The psychological quality of the crew had great influence on their performance capacity ,so we should pay attention to mental intervention ,enhance psychological protection ability of the crew , and improve their combat effectiveness continuously .

Objective To investigate the effect of electroacupuncture on the expressions of in-terleukin(IL)-33 and ST2 in spinal cord and dorsal root ganglion in rats with neuropathic pain. Methods Forty adult female SD rats were randomly divided into sham operation group (group Sham),model group (group MC),ipsilateral electroacupuncture group (group SE)and contralateral electroacupuncture group (group VE).Each group had 10.The sciatic nerve injury models were es-tablished.The rats in group SE and group VE were respectively accepted electrical acupuncture treat-ment in Yanglingquan and Zusanli in the right and left limbs.Respectively,before treatment (T0 ), treated for 7 d (T1 ),3 d (T2 )and 7 d (T3 )after treatment,the MWT and TWL of rats in the four groups were measured.At T3 ,the expressions of IL-33 in spinal cord and dorsal root ganglion in rats were detected by using quantitative PCR.Results Compared with T0 ,MWT and TWL in group MC, group SE and group VE at T1-T3 were decreased significantly (P < 0.05).Compared with sham group,MWT in group SE and group VE,TWL in group MC,group SE and group VE at T1-T3 were decreased significantly (P <0.05).Compared with group MC,MWT and TWL in group SE and group VE at T2 ,T3 were increased significantly (P <0.05).Compared with sham group,the relative expression levels of IL-33 mRNA and ST2 mRNA in spinal cord and dorsal root ganglion in the group MC,group SE and group VE were elevated,the differences were statistically significant (P <0.05). Compared with group MC,the relative expression levels of IL-33 mRNA and ST2 mRNA in spinal cord and dorsal root ganglion group SE and group VE were decreased,the differences were statistical-ly significant (P <0.05).Conclusion The electroacupuncture treatment could significantly reduce the pain symptoms of neuropathic pain in rats,possibly via inhibiting the expressions of IL-33 and ST2 in spinal cord and dorsal root ganglion and blocking the IL-33/ST2 mediated inflammatory to play role.

Objective To prolong the working time of the crew under a high temperature and high humidity environment in armored vehicles , improve work efficiency , and to prevent excessive heat load from doing any harm to the human body . Methods The man-machine environment was analyzed , the corresponding environment and the conditions aboard were further quantitatively studied , and man-machine-environment interactions were analyzed .Also,a questionnaire survey was conducted at the same time .Results and Conclusion The thermal equilibrium and thermal comfort calculation program were compiled and validated through the questionnaire survey in order to provide support for environment assessment and protection design .

Objective To study a purification prototype with a noble metal nano catalyst as the main material in order to improve the combat capability of the crew of armored vehides.Methods At natural temperature, the single way purification experiment, static and dynamic purification experiments were carried out in the 1 m3 and the 7 m3 cabins. Results In the single way purification experiment, the prototype kept the purification rate above 40%and 50%when the CO concentration was below 800 mg/m3 and the air flow rate was 1 and 2 m3/min.During static experiments, the CO purification rate was 90% at the initial concentration of 800 mg/m3 and after 3′43″and 20′.During the dynamic experiment, the average elevation rate of the gas concentration was significantly lower than that of the control experiment. Conclusion In a natural environment, the prototype can effectively purify CO gas.Key technology of CO gas purification has been made available that can be used to develop CO gas purification devices in armored vehicles.

Objective To design a controller for the air environment of cabins of special vehicles .Methods The microprocessor was used to collect and store parameters ,and calculate automatically the operative mode of actuators ,such as the fan,air-conditioner,oxygenerator,air cleaner, filtering and boosting devices according to the preset target values .Output commands by RS485 were used to control actuators .Results and Conclusion The controller is capable of control integration for air-adjusting equipment while improving the control effect of the air quality in cabins of special vehicles .

Objective To design a measuring system for operative gestures used for the crew in armored vehicles. Methods The MEMS sensor was used to collect gesture parameters of important parts of four crew members,such as the head, neck,trunk,arms,legs.The infrared tracking auxiliary measurement was used to calibrate the gesture parameters of arms of drivers.The wireless transceiver was used to transmit data to the control unit for preprocessing and then send the data to the collector for storage, before being transmitted to the back-end computers.A software system was used to process and display the body posture parameters.Results and Conclusion The system can mesure the operative gestures of the crew and provide means by which to analyze the kinematics for the crew in armored vehicles.

Objective: To sample survey the relationship between acute mountain sickness and mental health of officers and soldiers, so as to provide theoretical direction for the psychological prevent and counsel of them. Methods: In May 2017, 61 officers and soldiers were selectedas subject investigated, and divided to AMS group included 35 persons and non-AMS group included 26 persons according to the finding of theAMS symptom division point table, then used symptom self-testing tableto test and evaluate the mental health of them. Results: The AMS group showed significantly higher scores on the psychological parameters such as omatization, interpersonal sensitivity, depression, anxiety, phobicanxiety, parnoid ideation and so on (105.20±13.82, 1.37±0.26, 1.14±0.21, 1.16±0.19, 1.16±0.18, 1.06±0.11, 1.10±0.17, 1.22±0.19, P<0.05) . Conclusion The mental factors of omatization, interpersonal sensitivity, depression, anxiety, phobic anxiety, parnoid ideation and so on had great influence on AMS, we should pay attention to these factors and carry on mental intervention, and enhance anti-stress ability of individual, to ensure the successful completion of plateau military mission.

Objective:To explore the effect of dual antiplatelet combined with calf serum deproteinized injection in the treatment of mild ischemic stroke after intravenous thrombolysis.Methods:From October 2017 to December 2018, 82 patients with mild ischemic stroke who were diagnosed in the People's Hospital of Ruian were selected.The patients were divided into control group (41 cases) and observation group (41 cases) according to random number table method.The control group was treated with aspirin after intravenous thrombolysis.On this basis, the observation group was treated with dual antiplatelet combined with calf serum deproteinized injection.The course of treatment was 3 months in both two groups.The total effective rate, the changes of hemorheological indicators, the improvement of neurological deficit, the ability of daily living and the ability of returning to society were compared between the two groups before and after treatment.The complications and prognosis were recorded.Results:The total effective rate of the observation group was 95.12% (39/41), which was higher than 78.05% (32/41) of the control group (χ 2=5.145, P<0.05). After treatment, the National Institutes of Health Stroke Score Scale (NIHSS) score, Modified Rankin Score (mRS), Barthel index (BI) score of the observation group were (0.34±0.18)points, (92.15±6.73)points, (0.87±0.36)points, respectively, which of the control group were (0.92±0.35)points, (76.05±4.86)points, (1.64±0.52)points, respectively, there were statistically significant differences between the two groups ( t=8.592, 11.308, 7.099, all P<0.05). The whole blood viscosity, plasma viscosity and platelet aggregation rate of the observation group were (4.13±0.36)mPa/s, (1.39±0.31)mPa/s, (32.35±2.61)%, respectively, which were lower than those of the control group [(8.65±0.72)mPa/s, (1.62±0.47)mPa/s, (39.07±3.25)%] ( t=32.740, 2.382, 9.400, all P<0.05). There were no cases of cerebral hemorrhage and death in the two groups, and there was no statistically significant difference in recurrence rate between the two groups (χ 2=2.565, P>0.05). Conclusion:After intravenous thrombolytic therapy for patients with mild ischemic stroke, dual antiplatelet therapy combined with calf serum deproteinized injection can improve the neurological function, life ability and hemorheological indicators of patients, with good prognosis, it is safe and effective.