RATIONAL莱欣诺~？产品系列中体型最小的成员在众多选手当中脱颖而出：Self Cooking Center XS在2018德国设计奖大赛中荣获“厨房”类别的“冠军”称号。由来自世界各地的一流专家组成的评委会对这台万能蒸烤箱的创新力量一致予以好评,...RATIONAL莱欣诺~？产品系列中体型最小的成员在众多选手当中脱颖而出：Self Cooking Center XS在2018德国设计奖大赛中荣获“厨房”类别的“冠军”称号。由来自世界各地的一流专家组成的评委会对这台万能蒸烤箱的创新力量一致予以好评,将一等奖颁发给RATIONAL AG公司。展开更多
A new case configuration in R^3, the conjugate-nest consisted of one regular tetrahedron and one regular octahedron is discussed. If the configuration is a central configuration, then all masses of outside layer are e...A new case configuration in R^3, the conjugate-nest consisted of one regular tetrahedron and one regular octahedron is discussed. If the configuration is a central configuration, then all masses of outside layer are equivalent, the masses of inside layer are also equivalent. At the same time the following relation between ρ（r =√3/3ρ is the radius ratio of the sizes） and mass ratio τ=~↑m/m must be satisfied τ=~↑m/m=ρ（ρ＋3）（3＋2ρ＋ρ^2）^-3/2＋ρ（-ρ＋3）（3-2ρ＋ρ^2）^-3/2-4.2^-3/2ρ^-2-^-1ρ^-2/2（1＋ρ）（3＋2ρ＋ρ^2）^-3/2＋2（ρ-1）（3-2ρ＋ρ^2）^-3/2-4（2√2）^-3ρ, and for any mass ratio τ, when mass ratio r is in the open interval （0, 0.03871633950 ... ）, there exist three central configuration solutions（the initial configuration conditions who imply hamagraphic solutions） corresponding radius ratios are r1, r2, and r3, two of them in the interval （2.639300779… , ＋∞） and one is in the interval （0.7379549890…, 1.490942703… ）. when mass ratio τ is in the open interval （130.8164950… , ＋∞）, in the same way there have three corresponding radius ratios, two of them in the interval （0, 0.4211584789... ） and one is in the interval （0.7379549890…, 1.490942703…）. When mass ratio τ is in the open interval （0.03871633950…, 130.8164950…）, there has only one solution r in the interval （0.7379549890…, 1.490942703… ）.展开更多
In this paper, we study the asymptotic behavior of globally smooth solutions of initial boundary value problem for 1-d quasineutral drift-diffusion model for semiconductors. We prove that the smooth solutions（close t...In this paper, we study the asymptotic behavior of globally smooth solutions of initial boundary value problem for 1-d quasineutral drift-diffusion model for semiconductors. We prove that the smooth solutions（close to equilibrium）of the problem converge to the unique stationary solution.展开更多
Objective To analyze the relationship between karyotypes and clinic features of patients with primary amenorrhea.Methods G banding was done for 340 patients with primary amenorrhea to facilitate individual chromosome ...Objective To analyze the relationship between karyotypes and clinic features of patients with primary amenorrhea.Methods G banding was done for 340 patients with primary amenorrhea to facilitate individual chromosome identification,and if specific staining for certain portions of the chromosome was necessary,C banding was used.The clinical data were recorded by physical examination and ultrasound scanning.Results Karyotype analysis of the 340 patients revealed that 180(52.94%) patients had normal female karyotypes and 160(47.06%) patients had abnormal karyotypes.The abnormal karyotypes included abnormal X chromosome(150 patients),mosaic X-Y chromosome(4 patients),abnormal autosome(5 patients),and X-autosome translocation(1 patient).The main clinical manifestations in patients with primary amenorrhea were primordial or absent uterus(95.9%),invisible secondary sex features(68.8%),little or absent ovary(62.6%),and short stature(30.0%).The incidence of short stature in patients with X chromosome aberration(46%,69/150) was significangly higher that in patients with 46,XX(9.44%,17/180) as well as 46,XY(6.67%,3/45;χ2=146.25,P=0.000).All primary amenorrhea patients with deletion or break-point at Xp11.1-11.4 were short statures.Conclusions One of the main reasons of primary amenorrhea is choromosome abnormality,especially heterosome abnormality.It implies the need to routinely screen chromosomal anomalies for such patients.There might be relationship between Xp11.1-11.4 integrity and height improvement.展开更多
基金NSF of China(10231010)NSF of Chongqing EducationCommittee(071105)NSF of SXXYYB(070X)
文摘A new case configuration in R^3, the conjugate-nest consisted of one regular tetrahedron and one regular octahedron is discussed. If the configuration is a central configuration, then all masses of outside layer are equivalent, the masses of inside layer are also equivalent. At the same time the following relation between ρ（r =√3/3ρ is the radius ratio of the sizes） and mass ratio τ=~↑m/m must be satisfied τ=~↑m/m=ρ（ρ＋3）（3＋2ρ＋ρ^2）^-3/2＋ρ（-ρ＋3）（3-2ρ＋ρ^2）^-3/2-4.2^-3/2ρ^-2-^-1ρ^-2/2（1＋ρ）（3＋2ρ＋ρ^2）^-3/2＋2（ρ-1）（3-2ρ＋ρ^2）^-3/2-4（2√2）^-3ρ, and for any mass ratio τ, when mass ratio r is in the open interval （0, 0.03871633950 ... ）, there exist three central configuration solutions（the initial configuration conditions who imply hamagraphic solutions） corresponding radius ratios are r1, r2, and r3, two of them in the interval （2.639300779… , ＋∞） and one is in the interval （0.7379549890…, 1.490942703… ）. when mass ratio τ is in the open interval （130.8164950… , ＋∞）, in the same way there have three corresponding radius ratios, two of them in the interval （0, 0.4211584789... ） and one is in the interval （0.7379549890…, 1.490942703…）. When mass ratio τ is in the open interval （0.03871633950…, 130.8164950…）, there has only one solution r in the interval （0.7379549890…, 1.490942703… ）.
基金Supported by the Financial Project of Key Youth in College of Henan Province
文摘In this paper, we study the asymptotic behavior of globally smooth solutions of initial boundary value problem for 1-d quasineutral drift-diffusion model for semiconductors. We prove that the smooth solutions（close to equilibrium）of the problem converge to the unique stationary solution.
文摘Objective To analyze the relationship between karyotypes and clinic features of patients with primary amenorrhea.Methods G banding was done for 340 patients with primary amenorrhea to facilitate individual chromosome identification,and if specific staining for certain portions of the chromosome was necessary,C banding was used.The clinical data were recorded by physical examination and ultrasound scanning.Results Karyotype analysis of the 340 patients revealed that 180(52.94%) patients had normal female karyotypes and 160(47.06%) patients had abnormal karyotypes.The abnormal karyotypes included abnormal X chromosome(150 patients),mosaic X-Y chromosome(4 patients),abnormal autosome(5 patients),and X-autosome translocation(1 patient).The main clinical manifestations in patients with primary amenorrhea were primordial or absent uterus(95.9%),invisible secondary sex features(68.8%),little or absent ovary(62.6%),and short stature(30.0%).The incidence of short stature in patients with X chromosome aberration(46%,69/150) was significangly higher that in patients with 46,XX(9.44%,17/180) as well as 46,XY(6.67%,3/45;χ2=146.25,P=0.000).All primary amenorrhea patients with deletion or break-point at Xp11.1-11.4 were short statures.Conclusions One of the main reasons of primary amenorrhea is choromosome abnormality,especially heterosome abnormality.It implies the need to routinely screen chromosomal anomalies for such patients.There might be relationship between Xp11.1-11.4 integrity and height improvement.
