Effets of conventional and optimized water and nitrogenmanagements on spinach (Spinacia oleracea L.) growth and soil mineralN (N_min) residues were compared in an open field experiment in whichwater balance method and...Effets of conventional and optimized water and nitrogenmanagements on spinach (Spinacia oleracea L.) growth and soil mineralN (N_min) residues were compared in an open field experiment in whichwater balance method and N recommendation with the KNS-system wereincluded. It was shown that the conventional water treatment(seasonal irrigated amount: 175 mm) reduced spinach growth comparedto the water balance treatments (seasonal irrigated amount: 80 and 85mm) at he same N supply level due to N loss through leaching causedby excessive water supply.展开更多
In this paper,by using the G_(m,1)~(1,1)-system,we study Darboux transformations for space-like isothermic surfaces in Minkowski space R~(m,1),where G_(m,1)~(1,1)=O(m+1,2)/O(m,1)×O(1,1).
Recently, a generalization of Laughlin's wave function expressed in Haldane's spherical geometry is con-structed in 4D quantum Hall effect. In fact, it is a membrane wave function in CP3 space. In this artic...Recently, a generalization of Laughlin's wave function expressed in Haldane's spherical geometry is con-structed in 4D quantum Hall effect. In fact, it is a membrane wave function in CP3 space. In this article, we use non-Abelian Berry phase to anaJyze the statistics of this membrane wave function. Our results show that the membrane wave function obeys fractional statistics. It is the rare example to realize fractional statistics in higher-dimensiona space than 2D. And, it will help to make clear the unresolved problems in 4D quantum Hall effect.展开更多
Objective: to analyze and evaluate the application value of magnetic resonance in the staging diagnosis of cervical cancer. Methods: thirty-five patients who underwent pelvic magnetic resonance examination in our hosp...Objective: to analyze and evaluate the application value of magnetic resonance in the staging diagnosis of cervical cancer. Methods: thirty-five patients who underwent pelvic magnetic resonance examination in our hospital were randomly selected as the research object. Before the pathological examination, all patients used magnetic resonance to carry out staging diagnosis of cervical cancer, and the corresponding diagnosis results were obtained. Results: through the analysis of the results of magnetic resonance diagnosis, the accuracy, sensitivity and specificity of magnetic resonance diagnosis of cervical cancer reached 92.86%, 94.83% and 83.33% respectively. For the patients diagnosed as true positive by MRI, the stages of cervical cancer were ⅠB1, ⅠB2, ⅡA1 and ⅡA2, respectively, and the difference was statistically significant (p < 0.05). Conclusion: magnetic resonance imaging is a very sensitive and accurate diagnostic method in the process of cervical cancer staging diagnosis. Through the use of this diagnostic method, doctors and patients can understand the patient's condition development more clearly, and can provide certain reference for clinical treatment. Therefore, magnetic resonance imaging has great application and promotion value in cervical cancer staging diagnosis.展开更多
By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G...By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G(n-1,n-1)1,1 = O(2n - 2, 2)/O(n - 1,1)×O(n-1, 1).展开更多
基金Natural Science Foundation of Beijing(No.6991004)Joint Lab between theInstitute of Soil Science, CAS, +1 种基金 Hong Kong Baptist University (No. 99122202) Federal Ministry of Education and Research, Germany.
文摘Effets of conventional and optimized water and nitrogenmanagements on spinach (Spinacia oleracea L.) growth and soil mineralN (N_min) residues were compared in an open field experiment in whichwater balance method and N recommendation with the KNS-system wereincluded. It was shown that the conventional water treatment(seasonal irrigated amount: 175 mm) reduced spinach growth comparedto the water balance treatments (seasonal irrigated amount: 80 and 85mm) at he same N supply level due to N loss through leaching causedby excessive water supply.
文摘In this paper,by using the G_(m,1)~(1,1)-system,we study Darboux transformations for space-like isothermic surfaces in Minkowski space R~(m,1),where G_(m,1)~(1,1)=O(m+1,2)/O(m,1)×O(1,1).
文摘Recently, a generalization of Laughlin's wave function expressed in Haldane's spherical geometry is con-structed in 4D quantum Hall effect. In fact, it is a membrane wave function in CP3 space. In this article, we use non-Abelian Berry phase to anaJyze the statistics of this membrane wave function. Our results show that the membrane wave function obeys fractional statistics. It is the rare example to realize fractional statistics in higher-dimensiona space than 2D. And, it will help to make clear the unresolved problems in 4D quantum Hall effect.
文摘Objective: to analyze and evaluate the application value of magnetic resonance in the staging diagnosis of cervical cancer. Methods: thirty-five patients who underwent pelvic magnetic resonance examination in our hospital were randomly selected as the research object. Before the pathological examination, all patients used magnetic resonance to carry out staging diagnosis of cervical cancer, and the corresponding diagnosis results were obtained. Results: through the analysis of the results of magnetic resonance diagnosis, the accuracy, sensitivity and specificity of magnetic resonance diagnosis of cervical cancer reached 92.86%, 94.83% and 83.33% respectively. For the patients diagnosed as true positive by MRI, the stages of cervical cancer were ⅠB1, ⅠB2, ⅡA1 and ⅡA2, respectively, and the difference was statistically significant (p < 0.05). Conclusion: magnetic resonance imaging is a very sensitive and accurate diagnostic method in the process of cervical cancer staging diagnosis. Through the use of this diagnostic method, doctors and patients can understand the patient's condition development more clearly, and can provide certain reference for clinical treatment. Therefore, magnetic resonance imaging has great application and promotion value in cervical cancer staging diagnosis.
基金Project supported supported by the 973 Project of the Ministry of Science and Technology of Chinathe National Natural Science Foundation of China (No. 10301030).
文摘By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G(n-1,n-1)1,1 = O(2n - 2, 2)/O(n - 1,1)×O(n-1, 1).
