海峡两岸及香港地区金融市场联动研究——基于六元非对称VAR-BEKK-MVGARCH模型

基于1993-2018年海峡两岸及香港地区外汇及股票市场数据实证研究发现:两岸及香港汇率和股指间的波动溢出效应强于均值溢出;新台币易受人民币、港币波动的影响及港股的非对称冲击,台湾股票市场受人民币、港币、A股的非对称冲击尤为显著;经济增长对两岸及香港外汇和股票市场的动态相关系数具有显著正向效应,而对外贸易则呈现逆向功效,资本账户开放和汇率市场化改革将强化金融市场联动。因此,持续推进金融改革、进一步开放资本项目对两岸及香港地区金融融合大有裨益

Distribution Characteristics of Soil Organic Carbon and Its Composition in Suaeda salsa Wetland in the Yellow River Delta

应用物理分组方法研究了黄河三角洲典型碱蓬湿地土壤有机碳及其组分分布特征.结果表明,研究区土壤重组有机碳是土壤有机碳的主要组成部分,土壤重组有机碳含量、土壤颗粒有机碳含量与土壤总有机碳含量都显著正相关.研究区土壤轻组组分比例和含量范围分别在0.008%～0.15%和0.10～0.40 g·kg-1,颗粒有机碳分配比例范围为8.83%～30.58%,说明黄河三角洲碱蓬湿地土壤有机碳中非保护性组分较低,碳库相对稳定

INFLUENCES OF RADIANT HEAT DURING EXERCISE IN A HOT ENVIRONMENT

It is considered very important for evaluation of effective exercise and conditioning to analysis physiological responses, the control of body temperature in particular, during cutdoor exercise in the hot environment. The purpose of this study was to investigate the influences of radiant heat during outdoor running. The environmental temperature and physiological responses in a healthy male adult who ran between 7.00a.m. and 10.00a.m. over a period of 17 days in the summer of 2000 were investigated. The mean dry bulb temperature during the 17 days of running was 30.21℃, the mean wet bulb temperature was 26.05℃, the mean glove temperature was 38.11℃, and Wet Bulb Glove Temperature (WBGT) was 34.91℃. These temperatures indicate a high risk of heat exhaustion. The mean running time was 72.6 min, the mean weight loss ratio was 3.7%, the mean elevation of tympanic temperature was 0.54℃, and the mean heart rate was 129.1 beats/min. There was a correlation between the weight loss ratio and elevation of tympanic temperature (correlation coefficient, 0.749). The elevation of tympanic temperature was highly correlated with the environmental temperature. The correlation coefficient was 0.822 with the glove temperature, 0.815 with the effective radiant heat and 0.829 with WBGT. Human tympanic temperature reflects the temperature in the hypothalamus, and it was suggested that it is necessary to sufficiently consider a counterplan of heat disorders under a condition of high outdoor radiant heat

Analysis of fluid intake during swimming in junior swimmers

The purpose of this study was to clarify the fluid intake during swimming training. The subjects were eighteen girl junior swimmers (11.7±1.8 years old with competitive experiences of 5.2±2.2 years). The mean water temperature during training was 29.8±0.2℃ and the mean training (workout) time was 2.23±0.26 hours. Weight loss per hour and weight loss normalized by the initial body weight and training hours was 0.08±0.06kg/hr and 2.21±1.79 g/kg/hr, respectively. Sweat loss per hour and sweat loss normalized by the initial body weight and training hours was 0.13±0.07 kg/hr and 3.89±1.97g/kg/hr, respectively. Fluid intake volume normalized by the initial body weight and training hours was 2.23±2.08 g/kg/hr. Fluid intake frequency and mean fluid intake volume was 5.1±2.4 times and 33.5±26.6g, respectively. Fluid intake ratio (fluid intake/ sweat loss multiplied by 100) was 69.05±64.52%. There was significant relationship between sweat loss and fluid intake volume. There was significant relationship between fluid intake volume, fluid intake ratio and fluid intake frequency. But, there was no significant relationship between sweat loss, mean fluid intake volume and fluid intake frequency. These data show that as frequency of fluid intake increases, fluid intake volume and fluid intake ratio rise. It is considered that swimmer have to increase frequency of fluid intake to prevent dehydration during swimming training

スプレーフラッシュ蒸発式海水淡水化用アルミニウム合金プレート式凝縮器の伝熱性能評価

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Thermoregulation,peripheral vessel vasomotor regulation, and hormonal responses during cold exposere in wheelchair athletes

The purpose of this study is to clarify the characteristics of thermoregulation and physiological responses during exercise in a cold environment in wheelchair athletes with spinal cord injury. The subjects were male wheelchair athletes with spinal cord injury and healthy male college students. The maximal oxygen intake as a parameter of endurance exercise ability was higher in the wheelchair athletes than in the college students. Measurements were performed at an environmental temperature of 12℃ with a mean relative humidity of 60% at a mean air stream of 0.5m/sec. After rest for 30 minutes, the subjects performed arm cranking exercise at 20 watts (50 rpm) for 60 minutes. The measurement items were tympanic temperature, mean skin temperature, heat production, catecholamine, and cold-induced vasodilation. During exercise under exposure to cold, the tympanic temperature, heat production, and catecholamine more markedly increased in the wheelchair athletes than in the college students. The resistance index as a value of cold-induced vasodilation were higher in the wheelchair athletes than college students during cold exposure. On the other hand, the decrease in the mean skin temperature was slighter in the wheelchair athletes than in the college students. The thermoregulation sensitivity and heat production responses to exercise in a cold environment were more markedly increased in the wheelchair athletes than in the college students

Effects of Short-Term Supervised Aerobic Training on Body Composition, Blood Pressure, Aerobic Working Capacity and Serum Lipids in Mildly Obese Middle-Aged Women

In this study, six mildly obese middle-aged women were trained at an exercise intensity of 75%HRmax three days a week for eight weeks, and whether this short-term supervised training has effects on the body measurement, respiratory and circulatory functions, and serum lipid profile was examined. The mean age, body height, body weight, and body mass index(BMI) of the six subjects were 42.9years, 157.1cm, 66.7kg, and 127.2kg/㎡, respectively. After eight weeks, the body weight decreased by 3.6kg, and the %body fat by 4.5%. Both systolic and diastolic blood pressures were reduced. The heart rate during submaximal exercise decreased slightly, and the ventilation volume and oxygen intake increased. Among serum lipids, triglyceride, total cholesterol (T-C) , and low density lipoprotein cholesterol decreased, and high density lipoprotein cholesterol (HDL-C) and HDL-C/T-C increased. From these results, short-term training under complete supervision is considered to cause decreases in body fat and improvements in the respiratory and circulatory functions, and serum lipid levels in mildly obese middle-aged women, and to contribute to prevention of adult diseases