A new method of detecting the vertical bearing capacity for single-pile with high strain is discussed in this paper. A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used ...A new method of detecting the vertical bearing capacity for single-pile with high strain is discussed in this paper. A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used to record vibra- tion graphs. An expression of higher degree of strain (deformation force) is introduced. It is testified theoretically that the displacement, velocity and acceleration cannot be obtained by simple integral acceleration and differential velocity when long displacement and high strain exist, namely when the pile phase generates a whole slip relative to the soil body. That is to say that there are non-linear relations between them. It is educed accordingly that the force P and displacement S are calculated from the amplitude of wave train and (dynamic) P-S curve is drew so as to determine the yield points. Further, a method of determining the vertical bearing capacity for single-pile is dis- cussed. A static load test is utilized to check the result of dynamic test and determine the correlative constants of dynamic-static P(Q)-S curve.展开更多
By using the theory of the generalized perturbed Hamiltonian systems, it is shown that there exist periodic stream lines in the three_dimensional square cell pattern of Rayleigh_Benard convection. The result means tha...By using the theory of the generalized perturbed Hamiltonian systems, it is shown that there exist periodic stream lines in the three_dimensional square cell pattern of Rayleigh_Benard convection. The result means that our method enables this three_dimensional flow pattern to be described in an unambiguous manner, and some experimental results of other authors can be explained.展开更多
The critical behaviors of a mixed spin-1/2 and spin-sB Ising system with a transverse crystal field are studiedby use of the effective-field theory with correlations. The effect of the transverse crystal field on tran...The critical behaviors of a mixed spin-1/2 and spin-sB Ising system with a transverse crystal field are studiedby use of the effective-field theory with correlations. The effect of the transverse crystal field on transition temperaturesis investigated numerically for the honeycomb (z = 3) and square (z = 4) lattices. The results show that there is notricritical point for the system.展开更多
The spin-1 Ising model with biaxiM crystal-field on the honeycomb lattice is investigated by using the effective-field theory with self-spin correlations and the differential operator technique. The effects of biaxial...The spin-1 Ising model with biaxiM crystal-field on the honeycomb lattice is investigated by using the effective-field theory with self-spin correlations and the differential operator technique. The effects of biaxial crystal-field described by two uniaxial anisotropy parameters Dx and Dy on the phase transition and specific heat and susceptibility are studied numerically. Some interesting results are observed in the system such as tricritical behavior depending sensitively on the strength of the biaxial crvstal-field.展开更多
This paper proposed an optimized fast handoff scheme for real time applications in next generation IP based CDMA wireless networks. The idea is to utilize optimized IP multicasting handoff (based on PIM SM), which is ...This paper proposed an optimized fast handoff scheme for real time applications in next generation IP based CDMA wireless networks. The idea is to utilize optimized IP multicasting handoff (based on PIM SM), which is triggered by CDMA layer 2 functionality. An IP based cellular network model with WCDMA FDD air interface and IP based packet traffic is adopted. No special network entities and signaling for handoff are added in our network model. The simulation results show that low delay and low packet lost rate can be obtained.展开更多
By studying the pile-formula and stress-wave methods (e.g., CASE method), the authors propose a new method for testing piles using the single-impact energy and P-S curves. The vibration and wave figures are recorded,...By studying the pile-formula and stress-wave methods (e.g., CASE method), the authors propose a new method for testing piles using the single-impact energy and P-S curves. The vibration and wave figures are recorded, and the dynamic and static displacements are measured by different transducers near the top of piles when the pile is im- pacted by a heavy hammer or micro-rocket. By observing the transformation coefficient of driving energy (total energy), the consumed energy of wave motion and vibration and so on, the vertical bearing capacity for single pile is measured and calculated. Then, using the vibration wave diagram, the dynamic relation curves between the force (P) and the displacement (S) is calculated and the yield points are determined. Using the static-loading test, the dynamic results are checked and the relative constants of dynamic-static P-S curves are determined. Then the sub- sidence quantity corresponding to the bearing capacity is determined. Moreover, the shaped quality of the pile body can be judged from the formation of P-S curves.展开更多
A multi-event and multi-station inverse method is presented in the paper to simultaneously estimate the seismic moments (M0) and source corner frequencies (fc) of several Jiashi (Xinjiang, China) earthquakes, as well...A multi-event and multi-station inverse method is presented in the paper to simultaneously estimate the seismic moments (M0) and source corner frequencies (fc) of several Jiashi (Xinjiang, China) earthquakes, as well as the apparent Lg Q models for the paths from Jiashi to eight seismic stations (WMQ, AAK, TLG, MAKZ, KUR, VOS, ZRN and CHK) in Central Asia. The resultant seismic moments correlate well with the M0 values obtained by Harvard University using the centroid moment tensor (CMT) inversion and the surface-wave magnitudes as well. After the correction by a typical value of average radiation coefficient for regional SV waves, the M0 values from Lg spectral inversion are still close to the corresponding values obtained from CMT inversion. The obtained ap- parent Q0Lg values (Lg Q at 1 Hz) are consistent with the tectonic features of corresponding propagation paths. The Q0Lg values are 351±87, 349±86 and 300±27 for the paths from Jiashi to AAK, TLG and MAKZ, respectively. They are smaller than Q0Lg values for the paths to KUR, VOS, ZRN and CHK, which are 553±72, 569±58, 550±57 and 603±65, respectively. These results agree with the condition that the paths to AAK, TLG and MAKZ mainly propagate through the mountainous Tianshan area where relatively strong seismic activities and large variations of topography are exhibited, while the paths to KUR, VOS, ZRN and CHK mainly propagate through the stable area of Kazak platform. The Q0Lg value for the path to WMQ is 462±56. This is also in agreement with the condition that the path to WMQ is basically along the border area between Tianshan Mountain and Tarim Basin, and along this path the variations of topography and crustal thickness are moderate in comparison with that along the path to MAKZ.展开更多
Summary: In order to investigate the effect of TGFβ 1 gene transfer on the biological characteristics, the effects of gene transfer and supernatant of transfected osteoblasts on the proliferation and ALP activity of...Summary: In order to investigate the effect of TGFβ 1 gene transfer on the biological characteristics, the effects of gene transfer and supernatant of transfected osteoblasts on the proliferation and ALP activity of osteoblasts were detected by 3H-TdR and MTT. Our results showed that TGFβ 1 gene transfer had no effect on the biological characteristics and the activated supernatant of transfected osteoblasts stimulated proliferation and inhibited ALP activity of osteoblasts. TGFβ 1 gene transfer could promote the expression of TGFβ 1 and the biological characteristics of transfected osteoblasts were stable, which might be helpful for gene therapy of bone defects in vivo.展开更多
The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replace...The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replaced by hT(1 for the constitution of hT(1-RP fusion gene in order to express acetyllated thymosin α 1. And also,the Asn-Gly bond was designed to faciliate isolation of the target protein.The fusion gene was cloned into the expression vector, pPIC/9K. The constructs were transformed into HIS4 mutant strain GS115 by electroporation. Both SDS-PAGE analysis and Western blot analysis indicated that the fusion protein was expressed successfully.展开更多
Objective: To seek for a new method of integrated Chinese and western medicine in treating ankylosing spondylitis (AS) to control the disease development, shorten the therapeutic course and lower disability rate. Meth...Objective: To seek for a new method of integrated Chinese and western medicine in treating ankylosing spondylitis (AS) to control the disease development, shorten the therapeutic course and lower disability rate. Methods: Patients of AS enrolled in this study were 106 cases in Group A, who were persistently treated with traditional Chinese medicine and western medicine (TCM WM) for over 10 months, 48 cases in Group B treated with WM and 34 cases in Group C treated with non steroid anti inflammatory and analgesic agents. They were followed up for 2 years. Results: (1) Short term effect: The markedly effective rate in the 3 groups was 73.58%, 47.92% and 5.88% respectively, and the total effective rate was 96.23%, 87.50% and 41.18% respectively. The comparison of Group A with Group B and C showed significant difference, the effect in Group A was superior to that in Group B and Group C (χ 2=10.58, P <0.01 and χ 2=67.76, P <0.01 respectively). (2) Results of 2 year follow up: the recurrence rate in Group A was 18.37% (9/49), it was insignificantly different from that in Group B (7/23, 30.43%,χ 2=1.32, P >0.05), but significantly different from that in Group C (8/12, 66.67%,χ 2=11.19, P <0.01). Conclusion: Long term TCM WM therapy, which combined the advantages of Chinese and western medicine, was a practical method in treating AS with reliable effect, few side effects, and therefore is worth popularizing.展开更多
文摘A new method of detecting the vertical bearing capacity for single-pile with high strain is discussed in this paper. A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used to record vibra- tion graphs. An expression of higher degree of strain (deformation force) is introduced. It is testified theoretically that the displacement, velocity and acceleration cannot be obtained by simple integral acceleration and differential velocity when long displacement and high strain exist, namely when the pile phase generates a whole slip relative to the soil body. That is to say that there are non-linear relations between them. It is educed accordingly that the force P and displacement S are calculated from the amplitude of wave train and (dynamic) P-S curve is drew so as to determine the yield points. Further, a method of determining the vertical bearing capacity for single-pile is dis- cussed. A static load test is utilized to check the result of dynamic test and determine the correlative constants of dynamic-static P(Q)-S curve.
文摘By using the theory of the generalized perturbed Hamiltonian systems, it is shown that there exist periodic stream lines in the three_dimensional square cell pattern of Rayleigh_Benard convection. The result means that our method enables this three_dimensional flow pattern to be described in an unambiguous manner, and some experimental results of other authors can be explained.
基金The project supported by Science Foundation of the Ministry of Education of China under Grant No.99026
文摘The critical behaviors of a mixed spin-1/2 and spin-sB Ising system with a transverse crystal field are studiedby use of the effective-field theory with correlations. The effect of the transverse crystal field on transition temperaturesis investigated numerically for the honeycomb (z = 3) and square (z = 4) lattices. The results show that there is notricritical point for the system.
文摘The spin-1 Ising model with biaxiM crystal-field on the honeycomb lattice is investigated by using the effective-field theory with self-spin correlations and the differential operator technique. The effects of biaxial crystal-field described by two uniaxial anisotropy parameters Dx and Dy on the phase transition and specific heat and susceptibility are studied numerically. Some interesting results are observed in the system such as tricritical behavior depending sensitively on the strength of the biaxial crvstal-field.
文摘This paper proposed an optimized fast handoff scheme for real time applications in next generation IP based CDMA wireless networks. The idea is to utilize optimized IP multicasting handoff (based on PIM SM), which is triggered by CDMA layer 2 functionality. An IP based cellular network model with WCDMA FDD air interface and IP based packet traffic is adopted. No special network entities and signaling for handoff are added in our network model. The simulation results show that low delay and low packet lost rate can be obtained.
基金Key Projects of Tenth Five-year Plan of Yunnan Province (54-02-02).
文摘By studying the pile-formula and stress-wave methods (e.g., CASE method), the authors propose a new method for testing piles using the single-impact energy and P-S curves. The vibration and wave figures are recorded, and the dynamic and static displacements are measured by different transducers near the top of piles when the pile is im- pacted by a heavy hammer or micro-rocket. By observing the transformation coefficient of driving energy (total energy), the consumed energy of wave motion and vibration and so on, the vertical bearing capacity for single pile is measured and calculated. Then, using the vibration wave diagram, the dynamic relation curves between the force (P) and the displacement (S) is calculated and the yield points are determined. Using the static-loading test, the dynamic results are checked and the relative constants of dynamic-static P-S curves are determined. Then the sub- sidence quantity corresponding to the bearing capacity is determined. Moreover, the shaped quality of the pile body can be judged from the formation of P-S curves.
基金Foundation of Verification Researches for Army Control Technology (413290102).
文摘A multi-event and multi-station inverse method is presented in the paper to simultaneously estimate the seismic moments (M0) and source corner frequencies (fc) of several Jiashi (Xinjiang, China) earthquakes, as well as the apparent Lg Q models for the paths from Jiashi to eight seismic stations (WMQ, AAK, TLG, MAKZ, KUR, VOS, ZRN and CHK) in Central Asia. The resultant seismic moments correlate well with the M0 values obtained by Harvard University using the centroid moment tensor (CMT) inversion and the surface-wave magnitudes as well. After the correction by a typical value of average radiation coefficient for regional SV waves, the M0 values from Lg spectral inversion are still close to the corresponding values obtained from CMT inversion. The obtained ap- parent Q0Lg values (Lg Q at 1 Hz) are consistent with the tectonic features of corresponding propagation paths. The Q0Lg values are 351±87, 349±86 and 300±27 for the paths from Jiashi to AAK, TLG and MAKZ, respectively. They are smaller than Q0Lg values for the paths to KUR, VOS, ZRN and CHK, which are 553±72, 569±58, 550±57 and 603±65, respectively. These results agree with the condition that the paths to AAK, TLG and MAKZ mainly propagate through the mountainous Tianshan area where relatively strong seismic activities and large variations of topography are exhibited, while the paths to KUR, VOS, ZRN and CHK mainly propagate through the stable area of Kazak platform. The Q0Lg value for the path to WMQ is 462±56. This is also in agreement with the condition that the path to WMQ is basically along the border area between Tianshan Mountain and Tarim Basin, and along this path the variations of topography and crustal thickness are moderate in comparison with that along the path to MAKZ.
文摘Summary: In order to investigate the effect of TGFβ 1 gene transfer on the biological characteristics, the effects of gene transfer and supernatant of transfected osteoblasts on the proliferation and ALP activity of osteoblasts were detected by 3H-TdR and MTT. Our results showed that TGFβ 1 gene transfer had no effect on the biological characteristics and the activated supernatant of transfected osteoblasts stimulated proliferation and inhibited ALP activity of osteoblasts. TGFβ 1 gene transfer could promote the expression of TGFβ 1 and the biological characteristics of transfected osteoblasts were stable, which might be helpful for gene therapy of bone defects in vivo.
文摘The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replaced by hT(1 for the constitution of hT(1-RP fusion gene in order to express acetyllated thymosin α 1. And also,the Asn-Gly bond was designed to faciliate isolation of the target protein.The fusion gene was cloned into the expression vector, pPIC/9K. The constructs were transformed into HIS4 mutant strain GS115 by electroporation. Both SDS-PAGE analysis and Western blot analysis indicated that the fusion protein was expressed successfully.
文摘Objective: To seek for a new method of integrated Chinese and western medicine in treating ankylosing spondylitis (AS) to control the disease development, shorten the therapeutic course and lower disability rate. Methods: Patients of AS enrolled in this study were 106 cases in Group A, who were persistently treated with traditional Chinese medicine and western medicine (TCM WM) for over 10 months, 48 cases in Group B treated with WM and 34 cases in Group C treated with non steroid anti inflammatory and analgesic agents. They were followed up for 2 years. Results: (1) Short term effect: The markedly effective rate in the 3 groups was 73.58%, 47.92% and 5.88% respectively, and the total effective rate was 96.23%, 87.50% and 41.18% respectively. The comparison of Group A with Group B and C showed significant difference, the effect in Group A was superior to that in Group B and Group C (χ 2=10.58, P <0.01 and χ 2=67.76, P <0.01 respectively). (2) Results of 2 year follow up: the recurrence rate in Group A was 18.37% (9/49), it was insignificantly different from that in Group B (7/23, 30.43%,χ 2=1.32, P >0.05), but significantly different from that in Group C (8/12, 66.67%,χ 2=11.19, P <0.01). Conclusion: Long term TCM WM therapy, which combined the advantages of Chinese and western medicine, was a practical method in treating AS with reliable effect, few side effects, and therefore is worth popularizing.
