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Search Results: 1 - 10 of 41881 matches for " LIN Sen and "
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Insightful Knowledge of Double Onset Constituency via the Standard and a Modified Optimality Theory
Sen-ling Lin
International Journal of English Linguistics , 2012, DOI: 10.5539/ijel.v2n1p3
Abstract: The current study reveals that the constraint-based standard optimality theory can better predict the co-occurrence of double onsets, whereas a corpus-data based optimality theory, which replaces a constraint tableau with a corpus-data table, can concentrate on the limited well-formed candidates, accounting more straightforwardly for interactions of the adjacent segments. In phonological processes, linear generative phonology is more clean-cut to explain the phonetic feature that influences adjacent segments. Optimality theory can have a pragmatic mode developed for the general public. As such, a new framework can make easier predictions and gain more insightful knowledge of double onset constituency, and does not have to resort to much terminology and sheer candidates generated, based on constraints for optimal outputs.
Parametrized Post-Newtonian Orbital Effects in Extrasolar Planets
Lin-sen Li
Physics , 2012, DOI: 10.1007/s10509-012-1077-7
Abstract: Perturbative Post-Newtonian variations of the standard osculating orbital elements are obtained by using the two-body equations of motion in the Parameterized Post-Newtonian theoretical framework. The results obtained are applied to the Einstein and. Brans - Dicke theories. As a results, the semi-major axis and eccentricity exhibit periodic variation, but no secular changes.. The longitude of periastron and mean longitude at epoch experience both secular and periodic shifts. The Post-Newtonian effects are calculated and discussed for six extrasolar planets.
Orbit and spin evolution of the synchronous binary stars on the main sequence phase
Lin-Sen Li
Physics , 2012, DOI: 10.1088/1674-4527/12/12/009
Abstract: The sets of the synchronous equations are derived from the sets of non-synchronous equations The analytical solutions are given by solving the set of differential equations. The results of the evolutionary tendency of the orbit-spin are that the semi-major axis shrinks gradually with time: the orbital eccentricity dereacses gradually with time until the orbital circularization; the orbital period shortens gradually with time and the rotational angular velocity of primary component speed up with time gradually before the orbit-rotation achieved the circularization The theoretical results are applied to evolution of the orbit and spin of synchronous binary stars Algol A, B on the main sequence phase The circularization time and life time (age) and the evolutional numerical solutions of orbit and spin when circularization time are estimeted for Algol A, B. The results are discussed and concluded.
Robust Resource Management Control for CO2 Emission and Reduction of Greenhouse Effect: Stochastic Game Approach  [PDF]
Bor-Sen Chen, Ying-Po Lin
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.29136
Abstract: With the increasingly severe global warming, investments in clean technology, reforestation and political action have been studied to reduce CO2 emission. In this study, a nonlinear stochastic model is proposed to describe the dynamics of CO2 emission with control inputs: clean technology, reforestation and carbon tax, under stochastic uncertainties. For the efficient resources management, a robust tracking control is designed to force resources tracking a desired reference output. The worst-case effect of stochastic parametric fluctuations, external disturbances and uncertain initial conditions on the tracking performance is considered and minimized from the dynamic game theory perspective. This stochastic game problem, in which one player (stochastic uncertainty) maximizes the tracking error and another player (control input) minimizes the tracking error, could be equivalent to a robust minimax tracking problem. To avoid solving the HJI, a fuzzy model is proposed to approximate the nonlinear CO2 emission model. Then the nonlinear stochastic game problem could be easily solved by fuzzy stochastic game approach via LMI technique.
Upgrading the Fermentation Process of Zhejiang Rosy Vinegar by Purebred Microorganisms  [PDF]
Yujian Jiang, Sen Lin, Lei Zhang, Ping Yu
Advances in Microbiology (AiM) , 2013, DOI: 10.4236/aim.2013.33042
Abstract:

Purebred microorganisms were employed to upgrade the fermentation process of Zhejiang rosy vinegar. The fermentation cycle was greatly shorten from 5 months to 72 d. The transformation rate of raw materials was increased from 1:4.5 in the traditional fermentation to 1:5 or more in the upgraded fermentation. The content of organic acids in the traditional vinegar (TRV), the upgraded vinegar (UPV) and the submerged fermentation vinegar (SFV) were also investigated by HPLC. No significant difference was found regarding the proportion of phenylethanol to the total volatile components in UPV (7.47% ± 0.00324%) and TRV (7.23% ± 0.00329%), but it was significantly higher than that in SFV (2.26% ± 0.00143%). This study provides deep insight into upgrading the fermentation process of Zhejiang rosy vinegar by purebred microorganisms.

Ab Initio Potential Energy Surfaces for Both the Ground ( ) and Excited ( ) Electronic States of HSiBr and the Absorption and Emission Spectra of HSiBr/DSiBr
Anyang Li,Sen Lin,Daiqian Xie
Advances in Physical Chemistry , 2012, DOI: 10.1155/2012/572148
Abstract: Ab Initio potential energy surfaces for the ground ( ) and excited ( ) electronic states of HSiBr were obtained by using the single and double excitation coupled-cluster theory with a noniterative perturbation treatment of triple excitations and the multireference configuration interaction with Davidson correction, respectively, employing an augmented correlation-consistent polarized valence quadruple zeta basis set. The calculated vibrational energy levels of HSiBr and DSiBr of the ground and excited electronic states are in excellent agreement with the available experimental band origins. In addition, the absorption and emission spectra of HSiBr and DSiBr were calculated using an efficient single Lanczos propagation method and are in good agreement with the available experimental observations. 1. Introduction Silylenes and its halogenated analogs are important reactive intermediates in the chemical vapor deposition of silicon thin films [1] and plasma etching process [2]. The identification and quantification of such intermediates could help make these processes more efficient, so that they have attracted much attention in experimental and theoretical studies [3–17]. However, because these radicals are typically short-lived and highly reactive, it is difficult to monitor them. Due to the lack of comprehensive spectroscopic signatures for these species, the detailed mechanism of such semiconductor growth processes is still not fully understood. In this work, we focus on the monobromosilylene (HSiBr) system, which was first detected by Herzberg and Verma in 1964 [3]. Both absorption and emission spectra of HSiBr in the 410–600?nm were obtained by flash photolysis of SiH3Br. The vibrational fundamentals and geometries for both the ground and excited states were confirmed after vibrational and rotational analyses of the spectra. Although no spin splittings were observed, the occurrence of subbands with and led them to assume that the electronic transition was triplet-singlet. Subsequently in 1965, these electronic transitions were confirmed to be by Hougen and Watson via an “axis-switching” mechanism [4]. The spectra of the system of jet-cooled HSiBr and its deuterated analog were obtained about 15 years ago by Harjanto et al. [8] using pulsed electric discharge techniques, and the structures for the ground and excited states were determined from the rotational analyses of the band. Later in 2001, 26/51 ground state vibrational levels of HSiBr/DSiBr were observed by Hostutler et al. [13] from the single vibronic level dispersed fluorescence spectra of
Petrography, mineral chemistry and shock metamorphism of Yamato 984028 lherzolitic shergottite
Sen Hu,Lu Feng,YangTing Lin
Chinese Science Bulletin , 2011, DOI: 10.1007/s11434-011-4443-x
Abstract: Y984028 is a new lherzolitic shergottite, consisting of poikilitic and non-poikilitic lithologies. The mafic silicates are FeO-poor, and the chromite is TiO2-poor in the poikilitic lithology compared to the grains in the non-poikilitic lithology. This meteorite shares similar mineral petrography and mineral chemistry with GRV 99027, but is not paired with the latter because of their different shock-induced features. Y984028 was severely shocked and experienced no significant thermal metamorphism after the main impact event. Hence, Y984028 serves as a probe for the study of meteorite impact processes on terrestrial surfaces. The melt veins in Y984028 are characterized by the absence of any high-pressure polymorphs, the presence of abundant small mineral fragments, and the prevailing granulation textures of olivine and chromite. These features are consistent with adiabatic melting during the release of shock-induced high-pressure and quenching at ambient pressure.
THE EFFECT OF GRAVITATIONAL RADIATION DAMPING ON THE VARIATION OF THE ORBITAL ELEMENTS OF BINARY SYSTEMS
引力辐射阻尼对双星轨道要素变化的影响

LI LIN-SEN,
李林森

物理学报 , 1989,
Abstract: In this paper the effect of gravitational radiation damping on the variation of the orbital elements of binary system is studied using the method of perturbation. This effect results in both the secular and periodic variation of the semimajor axis and the eccentricity, however, the longitude of periastron exhibits no secular variation, but only periodic variation In addition, the deduced expression is applied to calculate the variation of secular and periodic terms of the orbital elements of binary system, Y cyg, PSR 1913 + 16 and PSR 2303 + 24, and the obtained results are discussed and compared with the relativistic effects.
Theoretical studies on optical fiber secure communication using chaotic phase encoding
光纤混沌相位编码保密通信系统理论研究

Yan Sen-Lin,
颜森林

物理学报 , 2005,
Abstract: In this paper, we present the synchronization of chaotic injected semiconductor lasers in an optical fiber system via phase-controllers controlling its lasing p hase shift, and a theoretical model for optical fiber chaotic secure communicati on system via chaos phase shift modulation by coupling a chaotic laser phase con trolled synchronization system and an optical fiber channel. Chaotic synchroniza tion is realized numerically under phase-controllers controlling in a long-haul optical fiber system. Optical fiber chaos propagation formula is demonstrated by analyzing theoretically the effect of optical fiber self-phase modulation on ch aotic signal and synchronization. Chaotic laser phase shift is controlled and it s signal is transmitted via continuous chaos shift keying modulation on end for optical fiber communication encoding. Chaotic laser demodulation is achieved via setting a phase shift of the receiver phase-controllers for optical fiber commu nication decoding. Application of chaotic digital encoding of 50Mbit/s rate is simulated numerically for long-haul optical fiber secure communication. The system parameter mismatch and robustness of anti-noise are analyzed numerically in long-haul optical fiber propagation, in particular.
Studies on chaotic modulation performance and internal phase shifting key encoding in injection semiconductor lasers
注入半导体激光器混沌调制性能与内部相位键控编码方法研究

Yan Sen-Lin,
颜森林

物理学报 , 2006,
Abstract: The chaotic modulation and demodulation in injected semiconductor lasers are studied, and a method of chaotic encoding is presented by modulating the phase of external optical injection light in semiconductor lasers. The modulation response function, demodulation response function and demodulation response factor are analyzed by small-signal analysis. It is found there are peak values about 60 MHz and the response functions and the demodulation factor decrease at high modulation frequency. A chaotic modulation-demodulation equation is theoretically deduced and its roots are given. It is found that there is a peak value at low modulation frequency and the demodulation perfomance declines at high frequency, however, modulation-demodulation of 109 Hz frequency is relalized. Synchronization is achieved and is proved feasible numerically in larger parameter range. Secure communication applications are numerically simulated with chaotic modulations of 200 Mb/s rate and 1.4 GHz frequency. Chaotic encoding is also achieved by shifting key on or off a phase-controller to encode chaotic laser state and decoding is realized under the condition of synchronization or unsynchronization. Chaotic phase key shifting is numerically simulated with a bit rate of 10 Mb/s.
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