Synchronous Response of Tropical Ocean to Meridional and Zonal Wind Stress

Abstract

The synchronous response of tropical ocean to meridional and zonal wind stress has been studied. The results show that meridional wind stress of the first order that diverges or converges affects the velocity and geopotential fields. The disturbed termocline and the zonal flow of the zeroth order are driven directly by wind stress and affected by Kelvin wave and short Rossby wave. Rossby wave is produced by meridional wind stress. The disturbed termocline and the zonal flow of the second order mode are driven directly by wind stress and affected by short Rossby wave. At the same time, the meridional wind stress also produces the short Rossby wave. In addition, warm water is recruited to equator district strongly at the west boundary, which indicates that the meridional wind stress may transport the warm water equatorward, and the westerly wind stress transports the warm water at the west boundary eastward.

Study on Dehydration Process of Wet Natural Rubber by Single Screw Dehydrator and Properties of Dry Natural Rubber

“…It also can be seen that the value of P 0 and PRI of sample B are obvious better than that of sample A. The thermal-oxidation resistance of natural rubber granules obtained from dehydrator dried by microwave is more excellent than hot-air, which have been confirmed by pre-studies [5,6].…”

Study on Properties and Cross-Linking Structure of NR Dried by Microwave

“…& 3 that the increase of elastic modulus of sample A is slower than those of sample B, and the decrease of tanδ of sample A is slower than those of sample B in low frequency phase, respectively. In the entire scanning process, the elastic modulus of sample B is bigger than that of the sample A, but the tanδ of former is smaller, which shows that the molecular weight distribution of sample A is wide [6], the result has been showed in reference [3]. It can be held that the molecule of the sample B is bigger [3], the number of the internal rotation molecular chain conformation correspondingly increase, lead to the increase of molecular chains flexibility, the bigger the molecular weight, the longer the molecular chain, and thus, there are much more tangles among molecular chains (this is why sample B has bigger crosslink density compared with those of sample A ) to prevent the slide among molecular chain, and help improve elasticity [5].…”

“…In the entire scanning process, the elastic modulus of sample B is bigger than that of the sample A, but the tanδ of former is smaller, which shows that the molecular weight distribution of sample A is wide [6], the result has been showed in reference [3]. It can be held that the molecule of the sample B is bigger [3], the number of the internal rotation molecular chain conformation correspondingly increase, lead to the increase of molecular chains flexibility, the bigger the molecular weight, the longer the molecular chain, and thus, there are much more tangles among molecular chains (this is why sample B has bigger crosslink density compared with those of sample A ) to prevent the slide among molecular chain, and help improve elasticity [5]. In addition, the increase of molecular chain flexibility of the sample B may be lower the inner segment movement friction, or reduces the internal friction of sample B.…”

“…Microwave drying is one of the most interesting methods for drying wet natural rubber (NR). Microwave drying systems have several advantages over conventional hot-air drying methods for drying wet natural rubber, such as short drying time, high energy efficiency, little influence on the oxidative degradation of NR molecular chains , improvements in NR quality for thermal oxidative ageing resistance properties of NR, and so on [1][2][3].…”

“…Fig.2 Elastic modulus of NR response Fig.3 Tanδ of NR response to frequency to frequency sweep sweep It can be seen from Figs.2&3 that the increase of elastic modulus of sample A is slower than those of sample B, and the decrease of tanδ of sample A is slower than those of sample B in low frequency phase, respectively. In the entire scanning process, the elastic modulus of sample B is bigger than that of the sample A, but the tanδ of former is smaller, which shows that the molecular weight distribution of sample A is wide[6], the result has been showed in reference[3].…”