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An analysis of the symmetry in 3-boson systems 3-玻色子系统对称性的分析
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-09-20 DOI: 10.1360/YA1995-38-9-1083
Xie Wen-fang, Bao Cheng-guang
{"title":"An analysis of the symmetry in 3-boson systems","authors":"Xie Wen-fang, Bao Cheng-guang","doi":"10.1360/YA1995-38-9-1083","DOIUrl":"https://doi.org/10.1360/YA1995-38-9-1083","url":null,"abstract":"The constraints arising from the quantum mechanical symmetry on wavefunctions, and the effect of the constraints on the structures and internal notions of quantum states are studied.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130508868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
波函数混合对MgO:V 2+ 热移位的影响 波函数混合对MgO:V 2+ 热移位的影响
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-09-20 DOI: 10.1360/ZA1995-25-9-946
黄小益
{"title":"波函数混合对MgO:V 2+ 热移位的影响","authors":"黄小益","doi":"10.1360/ZA1995-25-9-946","DOIUrl":"https://doi.org/10.1360/ZA1995-25-9-946","url":null,"abstract":"根据掺稀土和过渡金属离子的晶场光谱热移位理论,光谱热移位应包括4部分贡献.利用波函数混合系数对其中作主要贡献的单声子项参量进行了理论计算,然后再对MgO:V 2+ 的R线的热移位进行了拟合计算,计算结果与大量实验数据符合很好.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127826239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Global dimension of ring T=(R M N S)_(θ,ψ) 环的整体维数T=(R M N S)_(θ，ψ)
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-09-20 DOI: 10.1360/YA1995-38-9-1025
Hao Zhifeng, Tong Wenting
{"title":"Global dimension of ring T=(R M N S)_(θ,ψ)","authors":"Hao Zhifeng, Tong Wenting","doi":"10.1360/YA1995-38-9-1025","DOIUrl":"https://doi.org/10.1360/YA1995-38-9-1025","url":null,"abstract":"Let T=(R M N S) (θ,ψ) be a left Noetherian ring, and M a flat right S-module. It is proved that max {LGD(R), LGD(S)} ≤LGD(T)≤1+max{LGD(S), 1+pd( s N)+LGD(R/MN)}.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117035240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The symmetry group and harmonic potentials of an electrostatic generalized multipole 静电广义多极子的对称群和谐波势
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-08-20 DOI: 10.1360/YA1995-38-8-963
Yu Li
{"title":"The symmetry group and harmonic potentials of an electrostatic generalized multipole","authors":"Yu Li","doi":"10.1360/YA1995-38-8-963","DOIUrl":"https://doi.org/10.1360/YA1995-38-8-963","url":null,"abstract":"The concept of an electrostatic ordinary multipole has been extended to an electrostatic generalized multipole which consists of a pair of close placed electrostatic ordinary multipole and electrostatic round lens. The definition of the M function for an electrostatic ordinary multipole has been extended to that of the M function for an electrostatic generalized multipole. The relation between the symmetry group of anelectrostaticordinary multipole and that of its corresponding electrostatic generalized multipole, and the relation between their constraint relations among their mth partial harmonic potentials have been derived. By analyzing some important electrostatic generalized multipoles, it is concluded that if an electrostatic deflector-multipole and an electrostatic round lens are placed close to each other , one cannot assert that this combined system can always be treated by the aberration theory of a combined focusing-deflection system.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132295614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
环T=( R M N S ) (θ,ψ) 整体维数的估计 环T=( R M N S ) (θ,ψ) 整体维数的估计
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-08-20 DOI: 10.1360/ZA1995-25-8-812
郝志峰, 佟文廷
{"title":"环T=( R M N S ) (θ,ψ) 整体维数的估计","authors":"郝志峰, 佟文廷","doi":"10.1360/ZA1995-25-8-812","DOIUrl":"https://doi.org/10.1360/ZA1995-25-8-812","url":null,"abstract":"给出了环T=( R M N S ) (θ,ψ) 整体维数的一个估计:若T为左Noether环,且M为平坦右S模,则max{LGD(R),LGD(S)}≤LGD(T)≤1+max{LGD(S),1+PD(s N )+LGD(R/MN)}.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126090855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The value distribution of f"f' f“f”的值分布
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-07-20 DOI: 10.1360/YA1995-38-7-789
Chen Huaihui, Fang Mingliang
{"title":"The value distribution of f\"f'","authors":"Chen Huaihui, Fang Mingliang","doi":"10.1360/YA1995-38-7-789","DOIUrl":"https://doi.org/10.1360/YA1995-38-7-789","url":null,"abstract":"Hayman's conjecture has been completely proved: if f(z) is a transcendental meromorphic function in the plane, then ff' assumes every finite non-zero complex value infinitely often. Furthermore, some related criteria have been deduced for normality of a family of meromorphic functions and results on the angular distribution have been given.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116799797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Magnetic reconnection in lower solar atmosphere 太阳低层大气中的磁重联
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-07-01 DOI: 10.1360/ya1995-38-7-853
Wang Jing-xiu
{"title":"Magnetic reconnection in lower solar atmosphere","authors":"Wang Jing-xiu","doi":"10.1360/ya1995-38-7-853","DOIUrl":"https://doi.org/10.1360/ya1995-38-7-853","url":null,"abstract":"Observations of vector magnetic field have provided the decisive constraint on the magnetic topology of solar active regions, thus offering an observational basis to identify various physical processes. Based on both magnetic field observations and theoretical discussions, it has been inferred that the magnetic flux cancellation, discovered from the line-of-sight magnetograms, reflects the interaction between magnetic loop systems and is most likely the slow magnetic reconnection in the lower solar atmosphere. This type of reconnections may affect the magnetic activities in the higher atmosphere by the way of transporting the magnetic energy and helicity and sometimes may cause fast reconnection in the corona, providing the necessary energy in solar flares.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130722806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
FLUX QUANTUM TUNNELING EFFECT AND ITS INFLUENCE ON THE EXPERIMENTAL CRITICAL-CURRENT DENSITY 通量量子隧穿效应及其对实验临界电流密度的影响
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-06-20 DOI: 10.1360/YA1995-38-6-717
H. Wen, Zx Zhao, R. Griessen
{"title":"FLUX QUANTUM TUNNELING EFFECT AND ITS INFLUENCE ON THE EXPERIMENTAL CRITICAL-CURRENT DENSITY","authors":"H. Wen, Zx Zhao, R. Griessen","doi":"10.1360/YA1995-38-6-717","DOIUrl":"https://doi.org/10.1360/YA1995-38-6-717","url":null,"abstract":"By using magnetic sweeping method, the temperature and magnetic field dependencies of the experimental current density and the normalized relaxation rate have been obtained. The true critical current density corresponding to the zero activation energy has been carried out based on the collective-pinning and the thermally-activated flux motion models, and therefore the influences of the quantum tunneling effect and the thermal activation effect on the experimental critical current density are distinguished. It is found that, with temperature lower than 10 K, the relaxation rate will not drop to zero when T approaches zero K because of the occurrence of the flux quantum tunneling. This additional flux motion further reduces the experimental critical current density j making it saturated with lowering temperature.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114467641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new model for analysing thermal stress in granular composite 颗粒复合材料热应力分析新模型
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-06-20 DOI: 10.1360/YA1995-38-6-739
Zheng Mao-sheng, Jin Zhihao, Hao Hong-qi
{"title":"A new model for analysing thermal stress in granular composite","authors":"Zheng Mao-sheng, Jin Zhihao, Hao Hong-qi","doi":"10.1360/YA1995-38-6-739","DOIUrl":"https://doi.org/10.1360/YA1995-38-6-739","url":null,"abstract":"A double embedding model of inletting reinforcement grain and hollow matrix ball into the effective media of the particulate-reinforced composite is advanced. And with this model the distributions of thermal stress in different phases of the composite during cooling are studied. Various expressions for predicting elastic and elastoplastic thermal stresses are derived. It is found that the reinforcement suffers compressive hydrostatic stress and the hydrostatic stress in matrix zone is a tensile one when temperature decreases; when temperature further decreases, yield area in matrix forms; when the volume fraction of reinforcement is enlarged, compressive stress on grain and tensile hydrostatic stress in matrix zone decrease; the initial temperature difference of the interface of reinforcement and matrix yielding rises, while that for the matrix yielding overall decreases.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124929605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pure germanium dioxide hollow-core fiber for transmitting CO 2 laser 用于传输co2激光的纯二氧化锗空心光纤
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science Pub Date : 1995-06-20 DOI: 10.1360/YA1995-38-6-749
Hou Lantian, Fu Lianfu, Lu Ping, H. Yuhua, Li Qiugeng, Xu Lixuan, Li Tianzhu
{"title":"Pure germanium dioxide hollow-core fiber for transmitting CO 2 laser","authors":"Hou Lantian, Fu Lianfu, Lu Ping, H. Yuhua, Li Qiugeng, Xu Lixuan, Li Tianzhu","doi":"10.1360/YA1995-38-6-749","DOIUrl":"https://doi.org/10.1360/YA1995-38-6-749","url":null,"abstract":"A method of fabricating pure germanium dioxide hollow-core fibers has been introduced for the first time. The output power of the fabricated fiber can come to 18 W, with the transmission loss of 1.23 dB/m at 10.6 μm. The mechanism of transmitting CO2 laser by the fiber is analyzed, the transmitting loss is further discussed and its application fields are envisaged.","PeriodicalId":256661,"journal":{"name":"Science in China Series A-Mathematics, Physics, Astronomy & Technological Science","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121442100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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