The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Zaiguang Li - One of the best experts on this subject based on the ideXlab platform.
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an effective correction to the Theoretical Curve of magnetobirefringence of magnetic fluid
Journal of Applied Physics, 1992Co-Authors: Chongwu Du, Zaiguang LiAbstract:Previously Theoretical models for magnetically induced birefringence (M‐B) of magnetic fluid ignored interparticle interactions and accordingly resulted in considerable deviation from the experiments at low field. Under such circumstances, we measure the Curie‐Weiss behaviors of two ferrofluid samples from −50 °C to 80 °C and correct the M‐B models by means of mean‐field approximation (Weiss model). Experiments show that the corrected model coincides with the experiments quite well even for concentrated ferrofluid samples.
Chongwu Du - One of the best experts on this subject based on the ideXlab platform.
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an effective correction to the Theoretical Curve of magnetobirefringence of magnetic fluid
Journal of Applied Physics, 1992Co-Authors: Chongwu Du, Zaiguang LiAbstract:Previously Theoretical models for magnetically induced birefringence (M‐B) of magnetic fluid ignored interparticle interactions and accordingly resulted in considerable deviation from the experiments at low field. Under such circumstances, we measure the Curie‐Weiss behaviors of two ferrofluid samples from −50 °C to 80 °C and correct the M‐B models by means of mean‐field approximation (Weiss model). Experiments show that the corrected model coincides with the experiments quite well even for concentrated ferrofluid samples.
Chen Jian - One of the best experts on this subject based on the ideXlab platform.
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Solution and Analysis for the Longitudinal Vibration of Integrated Anchor Bar
Underground Space, 2003Co-Authors: Chen JianAbstract:In this paper, the longitudinal vibration of integrated anchor bar under impulse force is studied, the corresponding analytical solution is developed by usingδ function. The influence of different dynamic parameters on instant dynamic frequency response of the bar top is analyzed and the Theoretical Curve obtained is compared with that from the field measurement and the results show that both Curves are in good agreement.
El M. Aydi - One of the best experts on this subject based on the ideXlab platform.
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Physical parameters extraction by a new method using solar cell models with various ideality factors
2015 27th International Conference on Microelectronics (ICM), 2015Co-Authors: S. Yadir, H. Amiry, R. Bendaoud, El A. Hassnaoui, A. Obbadi, M. Benhmida, El M. AydiAbstract:Increasing solar cells efficiency is considered as a critical factor in reducing the production costs of photovoltaic cell manufacturers. Modeling, simulation and design are key tools achievement of high-efficiency solar photovoltaic cell. The efficiency is closely connected to the physical parameters associated with the solar cell model adopted. They represent an essential analysis tool for understanding cell operating. The model with two diodes permits to better take into account the physical processes involved in the solar cell. Nonetheless, in which case both exponential terms included within the characteristic equation make it difficult to numerically manage. In this paper, we developed a numerical method for extracting the physical parameters of solar cell models. Results are compared to those obtained by application of two other classical methods in the case of a single diode model and two diodes model with two constant or various ideality factors. The comparison of results highlight that the two diodes models are more appropriates to describe physical phenomena acting within the solar cell. The proposed technique permits to have a better Theoretical Curve compatibility with the experimental characteristic (I-V). Furthermore, it requires less computational power.
Zhang Yong-xing - One of the best experts on this subject based on the ideXlab platform.
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Semi-analytical solution to small strain dynamic response of integrate anchor bar and its analysis
World Information On Earthquake Engineering, 2004Co-Authors: Zhang Yong-xingAbstract:The small strain dynamic response of integrate anchor bar under impulse force is studied, the corresponding semi-analytical solution is developed by using Fourier transform method. The influence of different dynamic parameters on dynamic response of top end of the anchor bar is analyzed, and the Theoretical Curve is in good agreement with that obtained from the field measurement.
