期刊文献+
共找到16篇文章
< 1 >
每页显示 20 50 100
Anatomical studies on water hyacinth (Eichhornia crassipes (Mart.) Solms) under the influence of textile wastewater 被引量:2
1
作者 MAHMOOD Qaisar 郑平 +3 位作者 SIDDIQI M. Rehan ISLAM Ejaz ul AZIM M. Rashid HAYAT Yousaf 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE EI CAS CSCD 2005年第10期991-998,共8页
Water hyacinth (Eichhornia crassipes (Mart.) Solms) is a prolific free floating aquatic macrohpyte found in tropical and subtropical parts of the earth. The effects of pollutants from textile wastewater on the anatomy... Water hyacinth (Eichhornia crassipes (Mart.) Solms) is a prolific free floating aquatic macrohpyte found in tropical and subtropical parts of the earth. The effects of pollutants from textile wastewater on the anatomy of the plant were studied. Water hyacinth exhibits hydrophytic adaptations which include reduced epidermis cells lacking cuticle in most cases, presence of large air spaces (7~50 μm), reduced vascular tissue and absorbing structures. Textile waste significantly affected the size of root cells.The presence of raphide crystals was noted in parenchyma cells of various organs in treated plants. 展开更多
关键词 EICHHORNIA crassipes Water hyacinth TEXTILE wastewater ANATOMICAL STUDIES
在线阅读 下载PDF
Inequalities of Maximum of Partial Sums and Convergence Rates in the Strong Laws for ρ^-mixing Random Variables 被引量:1
2
作者 TAN Cheng-liang WU Qun-ying HE Yan-mei 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第1期114-119,共6页
In this paper,we establish a Rosenthal-type inequality of partial sums for ρ~mixing random variables.As its applications,we get the complete convergence rates in the strong laws for ρ^-mixing random variables.The re... In this paper,we establish a Rosenthal-type inequality of partial sums for ρ~mixing random variables.As its applications,we get the complete convergence rates in the strong laws for ρ^-mixing random variables.The result obtained extends the corresponding result. 展开更多
关键词 convergence rates rosenthal type inequality ρ—-mixing random variables ρ~mixing random variables negatively associated random variables
在线阅读 下载PDF
Hawking Tunneling Radiation of Black Holes in Deformed Horava-Lifshitz Gravity
3
作者 曾晓雄 李玲 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第2期376-380,共5页
Tunneling of scalar particles and Dirac particles from a black hole in the deformed Horava-Lifshitz gravity is discussed in this paper. We consider the case that the dynamical coupling constant λ= 1, when it reduces ... Tunneling of scalar particles and Dirac particles from a black hole in the deformed Horava-Lifshitz gravity is discussed in this paper. We consider the case that the dynamical coupling constant λ= 1, when it reduces to Einstein's General Relativity at large scales and the black hole behaves like the Reissner-Nordstr6m black hole. The result shows that though the black hole entropy bears logarithmic correction, the tunneling probability is still related to its differences for the scalar particles and Dirac particles. 展开更多
关键词 Horava-Lifshitz gravity TUNNELING black hole ENTROPY
在线阅读 下载PDF
Diffusion Dynamics of Cux Cluster on Cu(111) Surface
4
作者 Jian-feng Tang Mai-chang Xu +1 位作者 Xue-song Li Wo-yun Long 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 北大核心 2008年第1期27-31,共5页
The diffusion dynamics of small two-dimensional atomic clusters Cux (1≤x≤8) on Cu(lll) surface were studied using the molecular dynamics simulations and a modified analytic embedded-atom method in the temperatur... The diffusion dynamics of small two-dimensional atomic clusters Cux (1≤x≤8) on Cu(lll) surface were studied using the molecular dynamics simulations and a modified analytic embedded-atom method in the temperature range from 200 K to 800 K. The cluster size and temperature dependence of the diffusion coefficients and migration energies are presented. Our simulations show that the diffusion migration energy of the CuT cluster is the highest and the prefactor for the CuT cluster is almost three orders of magnitude larger than that for single atom diffusion. This conclusion is consistent with the experimental results for similar metals. In addition, the dependence of cluster diffusion on film growth is also discussed. 展开更多
关键词 CLUSTER Molecular dynamics Surface diffusion
在线阅读 下载PDF
Comparative study of the side effect profiles of oral misoprostol and parenteral oxytocin used in prevention of postpartum haemorrhage in Maiduguri Nigeria
5
作者 Sadiq G. Uthman Mairiga A. Garba +2 位作者 Ado G. Danazumi Mairo U. Mandara Nwaosu H. Sylvester 《Open Journal of Obstetrics and Gynecology》 2013年第1期208-211,共4页
The following work compared adverse effects profile and patients’ acceptability of intra-venous oxytocin 10 iu and oral misoprostol 600 ug used in the prevention of postpartum hemorrhage in the third stage of labour.... The following work compared adverse effects profile and patients’ acceptability of intra-venous oxytocin 10 iu and oral misoprostol 600 ug used in the prevention of postpartum hemorrhage in the third stage of labour. A total of 1865 pregnant women who have received either oxytocin injection or oral misoprostol in third stage of labour as prophylaxis for postpartum haemorrhage, were enrolled within three health care facilities in Maiduguri, Nigeria. Each patient was observed at parturition and for 24 h after during which oral interviews were conducted and clinical notes studied. The oxytocin medication group exhibited higher abdominal pains (7.1% versus 0.0%;p 0.05) difference in patients acceptability of injectable oxytocin (99.3%) and oral misoprostol (98.3%). Oxytocin usage in the prevention of PPH was associated with abdominal pains and headache while misoprostol was associated with shivering and fever. Patients from this study have demonstrated high level of acceptability of both parenteral oxytocin and oral misopristol prevention of post-partum haemorrhage. 展开更多
关键词 Adverse Effects Treatment ACCEPTABILITY POSTPARTUM HAEMORRHAGE MISOPROSTOL OXYTOCIN
暂未订购
Exploring the Role of Nutraceuticals (Red Yeast Rice) in Secondary Prevention: A New Pathway Can Be Opened
6
作者 Santiago de Dios Eduardo Fernandez Carrion +4 位作者 Javier Antona Makoshi Juan Jose Parra Fuertes Hector Fleites Eduardo Zatarain Jose Luis Zamorano Gomez 《World Journal of Cardiovascular Diseases》 2022年第1期24-29,共6页
<strong>Background:</strong><span style="white-space:normal;font-family:;" "=""> Long</span><span style="white-space:normal;font-family:;" "=&quo... <strong>Background:</strong><span style="white-space:normal;font-family:;" "=""> Long</span><span style="white-space:normal;font-family:;" "="">-</span><span style="white-space:normal;font-family:;" "="">term survival in acute coronary syndrome has increased steadily in the last decades. Follow-up studies developed in this patient clearly reveal that they are at risk of suffering a new event, placing them in a new stage, secondary prevention. Assuming this increased risk, the control target of their cardiovascular risk factors become more ambitious. In this field, control of Cholesterol levels, particularly LDL-C, ha</span><span style="white-space:normal;font-family:;" "="">s</span><span style="white-space:normal;font-family:;" "=""> arisen as a priority objective in patients with coronary arterial disease. In this sense, management of </span><span style="white-space:normal;font-family:;" "="">dyslipidemia </span><span style="white-space:normal;font-family:;" "="">guidelines, recently recognise</span><span style="white-space:normal;font-family:;" "="">s</span><span style="white-space:normal;font-family:;" "=""> the role of functional food, highlighting among them </span><span style="white-space:normal;font-family:;" "="">is </span><span style="white-space:normal;font-family:;" "="">the Red Yeast Rice (RYR). The aim of the study is to establish the potential role of functional food, in secondary prevention</span><span style="white-space:normal;font-family:;" "="">,</span><span style="white-space:normal;font-family:;" "=""> while deter</span><span style="white-space:normal;font-family:;" "="">mining its additional capacity to reduce LDL-C in patients that despite optimal classic treatment (maximum tolerated dose of stain plus Ezetimibe) </span><span style="white-space:normal;font-family:;" "="">is</span><span style="white-space:normal;font-family:;" "=""> still out of control objectives. <b>Results and Discussion:</b> 88 patients were included and after 3 months of treatment with RYR, their lipid profiles were compared with the baseline. The variation of T-Col, LDL-C and Trig were statistically significant. A reduction in LDL-C was 10.73</span><span style="white-space:normal;font-family:;" "=""> </span><span style="white-space:normal;font-family:;" "="">mg/dL, which means a 10.93% of additional reduction over the standard therapy the patients were receiving. Concerning security, no relevant side effects were reported when adding RYR, even in a relevant percentage (35.4%)</span><span style="white-space:normal;font-family:;" "="">,</span><span style="white-space:normal;font-family:;" "=""> myalgia disappeared (especially when reduc</span><span style="white-space:normal;font-family:;" "="">ing the </span><span style="white-space:normal;font-family:;" "="">titrating dose </span><span style="white-space:normal;font-family:;" "="">of </span><span style="white-space:normal;font-family:;" "="">the statin). <b>Conclusion:</b> Adding</span><span style="white-space:normal;font-family:;" "=""> RYR in secondary prevention patients in combination with the usual treatment, seems </span><span style="white-space:normal;font-family:;" "="">to be </span><span style="white-space:normal;font-family:;" "="">an effective alternative to optimi</span><span style="white-space:normal;font-family:;" "="">z</span><span style="white-space:normal;font-family:;" "="">e LDL levels and thus get</span><span style="white-space:normal;font-family:;" "="">s</span><span style="white-space:normal;font-family:;" "=""> closer to the target set in the</span><span style="white-space:normal;font-family:;" "=""> </span><span style="white-space:normal;font-family:;" "="">guidelines, without adding relevant side effects, </span><span style="white-space:normal;font-family:;" "="">and </span><span style="white-space:normal;font-family:;" "="">even improving tolerance to the statins.</span> 展开更多
关键词 LIPIDS NUTRACEUTICALS Coronary Artery Disease Secondary Prevention
暂未订购
Electric-Current-Induced Heat Generation in Kondo Regime 被引量:1
7
作者 陈桥 张亚民 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第7期171-174,共4页
Using the nonequilibrium Green's function technique,we investigate the current induced heat generationin Kondo regime.The Kondo effect influences the heat generation significantly.In the curve of heat generation v... Using the nonequilibrium Green's function technique,we investigate the current induced heat generationin Kondo regime.The Kondo effect influences the heat generation significantly.In the curve of heat generation versusthe bias,a negative differential of the heat generation is exhibited.The symmetry of the heat generation is destroyed bythe strong electron-electron interaction and the electron-phonon interaction. 展开更多
关键词 heat generation Kondo effect quantum dot nonequilibrium Green's function
在线阅读 下载PDF
A NOVEL SVM ENSEMBLE APPROACH USING CLUSTERING ANALYSIS 被引量:2
8
作者 Yuan Hejin Zhang Yanning +2 位作者 Yang Fuzeng Zhou Tao Du Zhenhua 《Journal of Electronics(China)》 2008年第2期246-253,共8页
A novel Support Vector Machine(SVM) ensemble approach using clustering analysis is proposed. Firstly,the positive and negative training examples are clustered through subtractive clus-tering algorithm respectively. Th... A novel Support Vector Machine(SVM) ensemble approach using clustering analysis is proposed. Firstly,the positive and negative training examples are clustered through subtractive clus-tering algorithm respectively. Then some representative examples are chosen from each of them to construct SVM components. At last,the outputs of the individual classifiers are fused through ma-jority voting method to obtain the final decision. Comparisons of performance between the proposed method and other popular ensemble approaches,such as Bagging,Adaboost and k.-fold cross valida-tion,are carried out on synthetic and UCI datasets. The experimental results show that our method has higher classification accuracy since the example distribution information is considered during en-semble through clustering analysis. It further indicates that our method needs a much smaller size of training subsets than Bagging and Adaboost to obtain satisfactory classification accuracy. 展开更多
关键词 Support Vector Machine (SVM) ENSEMBLE Clustering analysis
在线阅读 下载PDF
How some demographic factors affects postpartum haemorrhage prevention in Maiduguri, Nigeria 被引量:2
9
作者 Sadiq G. Uthman Mairiga A. Garba +2 位作者 Ado G. Danazumi Mairo U. Mandara Nwaosu H. Sylvester 《Open Journal of Obstetrics and Gynecology》 2013年第1期203-207,共5页
Aim: The following work studied how tribal affiliation, educational level and occupation of some women that had PPH in Maiduguri metropolis between September 2007 and March 2009 relate with PPH occurrence. The study w... Aim: The following work studied how tribal affiliation, educational level and occupation of some women that had PPH in Maiduguri metropolis between September 2007 and March 2009 relate with PPH occurrence. The study was aimed at identifying possible risk factors and also to compare the relative prevention efficacies of oxytocin or misoprostol within the matrix of these factors. Method: A total of 1800 pregnant women who have received either oxytocin injection or oral misoprostol in third stage of labour as a prophylaxis of postpartum haemorrhage, were enrolled within three health care facilities in Maiduguri, Nigeria. Each patient was observed at parturition and for 24 h after, during which blood lost was estimated to the nearest millilitres. Demographic characteristics were recorded in a structured proforma. The relationship of the occurrence of PPH (occurrence of blood loss > 500 ml) and mean blood loss (MBL) was studied with respect to the prophylactic medication used and some demographic factors. Results: The incidence of PPH was higher in Igbo, and some “minority” tribes of Borno state (Babur, Bura, Mafa). The tribes that constituted the majority of the study population (Kanuri, and Hausa) exhibited low incidences of PPH. Significant relationships were demonstrated between PPH and educational levels and occupations of participants. Conclussions: It was concluded that PPH occurrence is related to tribal affiliation, educational level and occupation, and the relative efficacies of oxytocin and misoprostol varies between the tribal groups. 展开更多
关键词 POSTPARTUM HAEMORRHAGE TRIBAL Affiliation Risk-Factors Maiduguri OXYTOCIN MISOPROSTOL
暂未订购
Thermoelectric Phenomena in a Quantum Dot Attached to Ferromagnetic Leads in Kondo Regime
10
作者 陈桥 赵丽丽 《Communications in Theoretical Physics》 SCIE CAS CSCD 2014年第9期417-422,共6页
We have studied the thermoelectric properties through ferromagnetic leads-QD coupled system(F-QD-F)in the Kondo regime by nonequilibrium Green's functions method. The spin-flip effect induced by ferromagnetic lead... We have studied the thermoelectric properties through ferromagnetic leads-QD coupled system(F-QD-F)in the Kondo regime by nonequilibrium Green's functions method. The spin-flip effect induced by ferromagnetic leads and Kondo effect influence the thermoelectric properties significantly. The peak-valley structure emerges at the low temperature due to Kondo resonance, and the peak-valley structure also relies on the polarization angle θ, the spindependent linewidth function Γγσ and the energy level of QD ?d. Novel resonant peak also emerges in the curve of ZTc versus polarization angle θ. The Kondo effect suppresses the figure of merit ZTc and the spin-dependent figure of merit ZTs. In addition, the spin-dependent figure of merit ZTs is relate with the gap between Γγ↑and Γγ↓. 展开更多
关键词 THERMOELECTRIC properties KONDO effect FERROMAGNETIC LEADS NONEQUILIBRIUM Green’s function
原文传递
Finding Non-liner Register on Binary M-Sequence Generating Binary Multiplication Sequence
11
作者 Ahmad Al Cheikha Diana Mokayes 《Electrical Science & Engineering》 2021年第2期17-27,共11页
In the current time there is an important problem that is for a received linear or nonlinear binary sequence{z_(n)}how we can find the nonlinear feedback shift register and its linear equivalent which generate this se... In the current time there is an important problem that is for a received linear or nonlinear binary sequence{z_(n)}how we can find the nonlinear feedback shift register and its linear equivalent which generate this sequence.The linear orthogonal sequences,special M-Sequences,play a big role in these methods for solving this problem.In the current research trying give illuminations about the methods which are very useful for solving this problem under short sequences,and study these methods for finding the nonlinear feedback shift register of a multiplication sequence and its linear equivalent feedback shift register of a received multiplication binary sequence{z_(n)}where the multiplication on h degrees of a binary linear sequence{a_(n)},or finding the equivalent linear feedback shift register of{z_(n)},where the sequence{z_(n)}of the form M-sequence,and these methods are very effectively.We can extend these methods for the large sequences using programming and modern computers with large memory. 展开更多
关键词 Linear sequences Finite field linear feedback shift register Orthogonal sequence Linear equivalent Complexity
在线阅读 下载PDF
Uncoupled thermoelastic analysis for a thick cylinder with radiation
12
作者 Navneet Kumar Lamba N.W.Khobragade 《Theoretical & Applied Mechanics Letters》 2012年第2期23-28,共6页
An attempt has been made to study the uncoupled thermoelastic response oI tr^lc~ cylmaer of length 2h in which heat sources are generated according to the linear function of the temperature, with boundary conditions o... An attempt has been made to study the uncoupled thermoelastic response oI tr^lc~ cylmaer of length 2h in which heat sources are generated according to the linear function of the temperature, with boundary conditions of the radiation type. This approach is based upon integral transform techniques, to find out the thermoelastic solution. The results are obtained in terms of Bessel functions in the form of infinite series. 展开更多
关键词 integral transform Marchi-Fasulo transform Marchi-Zgrablich transform CYLINDER
在线阅读 下载PDF
STRONG CONSISTENCY OF M ESTIMATOR IN LINEAR MODEL FOR NEGATIVELY ASSOCIATED SAMPLES 被引量:5
13
作者 Qunying WU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2006年第4期592-600,共9页
This paper discusses the strong consistency of M estimator of regression parameter in linear model for negatively associated samples. As a result, the author extends Theorem 1 and Theorem 2 of Shanchao YANG (2002) t... This paper discusses the strong consistency of M estimator of regression parameter in linear model for negatively associated samples. As a result, the author extends Theorem 1 and Theorem 2 of Shanchao YANG (2002) to the NA errors without necessarily imposing any extra condition. 展开更多
关键词 Linear model M estimator negatively associated sample strong consistency.
原文传递
Existence of Single and Multiple Solutions for First Order Periodic Boundary Value Problems 被引量:1
14
作者 Xiao-nlng Lin Hong Wang Da-qing Jiang 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2007年第2期289-302,共14页
This paper is devoted to the study ofthe existence of single and multiple positive solutions for the first order boundary value problem x′= f(t, x), x(0) = x(T), where f ∈ C([0,T] × R) . In addition, we... This paper is devoted to the study ofthe existence of single and multiple positive solutions for the first order boundary value problem x′= f(t, x), x(0) = x(T), where f ∈ C([0,T] × R) . In addition, we apply our existence theorems to a class of nonlinear periodic boundary value problems with a singularity at the origin. Our proofs are based on a fixed point theorem in cones. Our results improve some recent results in the literatures. 展开更多
关键词 Singular periodic boundary value problem single and multiple positive solution fixed point theorem in cones
原文传递
Forecasting Global Solar Insolation Using the Ensemble Kalman Filter Based Clearness Index Model
15
作者 Pravat Kumar Ray Bidyadhar Subudhi +2 位作者 Ghanim Putrus Mousa Marzband Zunaib Ali 《CSEE Journal of Power and Energy Systems》 SCIE EI CSCD 2022年第4期1087-1096,共10页
This paper describes a novel approach in developing a model for forecasting of global insolation on a horizontal plane.In the proposed forecasting model,constraints,such as latitude and whole precipitable water conten... This paper describes a novel approach in developing a model for forecasting of global insolation on a horizontal plane.In the proposed forecasting model,constraints,such as latitude and whole precipitable water content in vertical column of that location,are used.These parameters can be easily measurable with a global positioning system(GPS).The earlier model was developed by using the above datasets generated from different locations in India.The model has been verified by calculating theoretical global insolation for different sites covering east,west,north,south and the central region with the measured values from the same locations.The model has also been validated on a region,from which data was not used during the development of the model.In the model,clearness index coefficients(KT)are updated using the ensemble Kalman filter(EnKF)algorithm.The forecasting efficacies using the KT model and EnKF algorithm have also been verified by comparing two popular algorithms,namely the recursive least square(RLS)and Kalman filter(KF)algorithms.The minimum mean absolute percentage error(MAPE),mean square error(MSE)and correlation coefficient(R)value obtained in global solar insolation estimations using EnKF in one of the locations are 2.4%,0.0285 and 0.9866 respectively. 展开更多
关键词 Clearness index ensemble Kalman filter extra-terrestrial irradiance forecasting global solar insolation
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部