Sea-surface temperature (SST) in the eastern, equatorial Pacific and rain days over China in summer are analysed using correlation moments that is proposed by author and principal component analysis(PCA). Occurrences ...Sea-surface temperature (SST) in the eastern, equatorial Pacific and rain days over China in summer are analysed using correlation moments that is proposed by author and principal component analysis(PCA). Occurrences of the strong rain-day anomalies over China are associated with extreme SSTs in some years. Areas significantly affected by the phenomena include North and Northeast China.展开更多
By using a five-layer primitive equation model with P-sigma coordinates, the effect of convective heating source with the oscillation of a dipole pattern over the tropical Indian Ocean-Western Pacific on Asian sum- me...By using a five-layer primitive equation model with P-sigma coordinates, the effect of convective heating source with the oscillation of a dipole pattern over the tropical Indian Ocean-Western Pacific on Asian sum- mer monsoon is investigated. The results from simulations show that the oscillatary heating source may cause oscillations in east-west zonal circulation at the equator, in cross-equatorial flow, in meridional monsoon circulation and in the phase of high-low level circulation over Asia, with period same as that of the oscillating heat source. Furthermore, the influence mechanism of the tropical heating source associated with oscillations on Asian summer monsoon circulation is also studicd. It is clearly shown that the west- ward propagation of thermally-forced Rossy waves to the west of the oscillatary heating source and the northward propagation of disturbances can give rise to oscillations of the equatorial east-west zonal circula- tion and monsoonal meridional circulation. Finally, the oscillation of all the Asian summer monsoon cir- culation is formed.展开更多
OBJECTIVE:To optimise point application therapy for the treatment of asthma.METHODS:A total of 456 patients with asthma were randomly divided into treatment groups 1,2,and 3,with 152 patients each.The Dazhui(GV14),Fei...OBJECTIVE:To optimise point application therapy for the treatment of asthma.METHODS:A total of 456 patients with asthma were randomly divided into treatment groups 1,2,and 3,with 152 patients each.The Dazhui(GV14),Feishu(BL13),Xinshu(BL15),Geshu(BL17),Pishu(BL20),Shenshu(BL23),and Guanyuan(CV4)acupoints were selected for treatment groups 1 and 2,with 2 and 4 h of application,respectively.The Feishu(BL13),Xinshu(BL15),and Geshu(BL17)acupoints were selected in group 3,with 2 h of application.All patients underwent application of the“prevention of disease”plaster during the dog days of summer(approximately July and August each year)between 2015 and 2019.RESULTS:The analysis showed that the numbers of asthma attacks and total serum immunoglobulin E(IgE)levels of the three groups after treatment were significantly lower than those before treatment.In addition,the reductions in treatment groups 1 and 2 were more significant than those in group 3.The total treatment efficacy rates and post-treatment quality of life scores of the patients in treatment groups 1 and 2 were significantly higher than those in group 3.CONCLUSIONS:Point application therapy can effectively improve the clinical symptoms of patients with asthma,reduce the number of attacks,improve the quality of life,and decrease the total serum IgE level.The choice of acupuncture points,but not the length of the application time,influenced the therapeutic effect of point application therapy in asthma.展开更多
The local climate and atmospheric circulation pattern exert a clear influence on the atmospheric boundary layer （ABL） formation and development in Northwest China. In this paper, we use field observational data to a...The local climate and atmospheric circulation pattern exert a clear influence on the atmospheric boundary layer （ABL） formation and development in Northwest China. In this paper, we use field observational data to analyze the distribution and characteristics of the ABL in the extremely arid desert in Dunhuang, Northwest China. These data show that the daytime convective boundary layer and night time stable boundary layer in this area extend to higher altitudes than in other areas. In the night time, the stable boundary layer exceeds 900 m in altitude and can sometimes peak at 1750 m, above which the residual layer may reach up to about 4000 m. The daytime convective boundary layer develops rapidly after entering the residual layer, and exceeds 4000 m in thickness. The results show that the deep convective boundary layer in the daytime is a pre-requisite for maintaining the deep residual mixed layer in the night time. Meanwhile, the deep residual mixed layer in the night time provides favorable thermal conditions for the development of the convective boundary layer in the daytime. The prolonged periods of clear weather that often occurs in this area allow the cumulative effect of the atmospheric residual layer to develop fully, which creates thermal conditions beneficial for the growth of the daytime convective boundary layer. At the same time, the land surface process and atmospheric motion within the surface layer in this area also provide helpful support for forming the particular structure of the thermal ABL. High surface temperature is clearly the powerful external thermal forcing for the deep convective boundary layer. Strong sensible heat flux in the surface layer provides the required energy. Highly convective atmosphere and strong turbulence provide the necessary dynamic conditions, and the accumulative effect of the residual layer provides a favorable thermal environment.展开更多
文摘Sea-surface temperature (SST) in the eastern, equatorial Pacific and rain days over China in summer are analysed using correlation moments that is proposed by author and principal component analysis(PCA). Occurrences of the strong rain-day anomalies over China are associated with extreme SSTs in some years. Areas significantly affected by the phenomena include North and Northeast China.
文摘By using a five-layer primitive equation model with P-sigma coordinates, the effect of convective heating source with the oscillation of a dipole pattern over the tropical Indian Ocean-Western Pacific on Asian sum- mer monsoon is investigated. The results from simulations show that the oscillatary heating source may cause oscillations in east-west zonal circulation at the equator, in cross-equatorial flow, in meridional monsoon circulation and in the phase of high-low level circulation over Asia, with period same as that of the oscillating heat source. Furthermore, the influence mechanism of the tropical heating source associated with oscillations on Asian summer monsoon circulation is also studicd. It is clearly shown that the west- ward propagation of thermally-forced Rossy waves to the west of the oscillatary heating source and the northward propagation of disturbances can give rise to oscillations of the equatorial east-west zonal circula- tion and monsoonal meridional circulation. Finally, the oscillation of all the Asian summer monsoon cir- culation is formed.
基金Supported by Major Science and Technology Special Project of Zhejiang Province:Research and Application of Key Techniques of Point Application Therapy for Treating Winter Diseases and Summer Diseases to Prevent and Treat Respiratory Allergic Diseases(No.2014C03046-2)the Young Scientists of National Natural Science Foundation of China:Study on the Mechanism of Point Application Therapy Regulating Autophagy of Airway Epithelial Cells in the Treatment of Asthma Based on AMPK/mTOR Signal Pathway,(No.82004454)Zhejiang Traditional Chinese Medicine Administration:based on the Theory of"Lung Intestine Axis",a Comparative Study on the Therapeutic Effect of Different Point Application Therapy on Patients with AnaphyLactic Asthma in Remission Stage(No.2021ZQ035)。
文摘OBJECTIVE:To optimise point application therapy for the treatment of asthma.METHODS:A total of 456 patients with asthma were randomly divided into treatment groups 1,2,and 3,with 152 patients each.The Dazhui(GV14),Feishu(BL13),Xinshu(BL15),Geshu(BL17),Pishu(BL20),Shenshu(BL23),and Guanyuan(CV4)acupoints were selected for treatment groups 1 and 2,with 2 and 4 h of application,respectively.The Feishu(BL13),Xinshu(BL15),and Geshu(BL17)acupoints were selected in group 3,with 2 h of application.All patients underwent application of the“prevention of disease”plaster during the dog days of summer(approximately July and August each year)between 2015 and 2019.RESULTS:The analysis showed that the numbers of asthma attacks and total serum immunoglobulin E(IgE)levels of the three groups after treatment were significantly lower than those before treatment.In addition,the reductions in treatment groups 1 and 2 were more significant than those in group 3.The total treatment efficacy rates and post-treatment quality of life scores of the patients in treatment groups 1 and 2 were significantly higher than those in group 3.CONCLUSIONS:Point application therapy can effectively improve the clinical symptoms of patients with asthma,reduce the number of attacks,improve the quality of life,and decrease the total serum IgE level.The choice of acupuncture points,but not the length of the application time,influenced the therapeutic effect of point application therapy in asthma.
基金Supported by the National Science Foundation of China under Grant Nos. 40575006 and 40830957the National Key Program for Developing Basic Sciences under Grant No. G1998040906
文摘The local climate and atmospheric circulation pattern exert a clear influence on the atmospheric boundary layer （ABL） formation and development in Northwest China. In this paper, we use field observational data to analyze the distribution and characteristics of the ABL in the extremely arid desert in Dunhuang, Northwest China. These data show that the daytime convective boundary layer and night time stable boundary layer in this area extend to higher altitudes than in other areas. In the night time, the stable boundary layer exceeds 900 m in altitude and can sometimes peak at 1750 m, above which the residual layer may reach up to about 4000 m. The daytime convective boundary layer develops rapidly after entering the residual layer, and exceeds 4000 m in thickness. The results show that the deep convective boundary layer in the daytime is a pre-requisite for maintaining the deep residual mixed layer in the night time. Meanwhile, the deep residual mixed layer in the night time provides favorable thermal conditions for the development of the convective boundary layer in the daytime. The prolonged periods of clear weather that often occurs in this area allow the cumulative effect of the atmospheric residual layer to develop fully, which creates thermal conditions beneficial for the growth of the daytime convective boundary layer. At the same time, the land surface process and atmospheric motion within the surface layer in this area also provide helpful support for forming the particular structure of the thermal ABL. High surface temperature is clearly the powerful external thermal forcing for the deep convective boundary layer. Strong sensible heat flux in the surface layer provides the required energy. Highly convective atmosphere and strong turbulence provide the necessary dynamic conditions, and the accumulative effect of the residual layer provides a favorable thermal environment.
