Department of Physics Renmin University of China

Location Renmin University of China 59 Zhongguancun Ave.,Beijing 100872,China Futher Information:http:www.phys.ruc.edu.cn/Location Renmin University is one of top universities in China.The Department of Physics was founded in the fall of 2005.The Department has 35 full-time faculty members,including 20 professors,12 associate professors,and 3 lecturers.Their orientation is high-quality research combined with physics instruction across the full spectrum of core subjects.The activities of the department are designed to exploit the intrinsic synergy of innovative research teaching and academic exchanges in physics and related disciplines all of which are pursued at an internationally recognized standard.     

Analytic subjectindex of acoustical papers in China

0.General;1.Physical Acoustics;2.Underwater Sound;3.Mechanical Vibration and Shock;4.Noise and Noise Control;5.Ultrasonics;6.Speech Acoustics and Speech Communication;7.Physiological Acoustics;8.Architectural Acoustics;9 Electroacoustics;10.Acoustical Measurement andInstrumentation;11.Atmospheric Acoustics;12.Geoacoustics;13.Bioacoustics;14 Musical Acoustics;15.Signal processing.     

Analytic subject index of acoustical papers in China

0.General;1.Physical acoustics,2.Underwater sound;3.Mechanical vibration and shock;4.Noise and noise control;5.Ultrasonics;6.Speech acoustics and speech communication;7.Physio-logical acoustics;8.Architectural acoustics;9.Electroacoustics;10.Acoustical measurement andinstrumentation;11.Atmospheric acoustics,12.Geoacoustics;13.Bioacoustics;14.Musical acous-tics;15.Signal Prosessing.     

Analytic subject index of acoustical papers in China

0.General;1.Physical Acoustics;2.Underwater Sound;3.Mechanical Vibration and Shock;4.Noise and Noise Control;5.Ultrasonics;6.Speech Asoustics and Speech Communication;7.Physio-logical Acoustics;8.Architectural Asoustics;9.Electroacoustics;10.Acoustical Measurement andInstrumentation;11 .Amospheric Acoustics;12.Geoacoustics;13.Bioacoustics;14.Musical Acous-tics;15.Signal Processing     

A field test of SiVo aid in China

ThisworkwassupportedbythekeyprojectoftheNSFofChinaI.IntroductionTheSiVo(SinusoidalVoice)isakindofsignalprocessingaid,itprovidesthevoicefun-damentalfrequencyinformationwhichareextremelydifficulttolip-readtotheprofoundlyhearingimpairedlisteners.Alotofstudiesofthespeechpatternaidusedforprofoundlyhearing-impairedEnglishlistenershavebeeninvestigatedsincelastdecadeandafivecountryprojectintheEECTIDE(TechnologyInitiativeforDisabledandElderlypeople)programwhichwasdirectedtowardstheprecommercial…     

Analytic subject index of acoustical papers in China

0 .General 1 .Physical acoustics 2 .Underwater sound 3 .Mechanical vibration and shock4 .Noise and noise control 5 .Ultrasonics 6 .Speech acoustics and speech communication; 7 .Physiological acoustics 8 .Architectural acoustics; 9 .Electroacoustics 10 .Acoustical measurementand instrumentation 11 Atmospheric acoustics 12 .Geoacoustics 13 .Bioacoustics;14 .Musicalacousticas 15 .Signal Processing.     

Analytic subject index of acoustical papers in China

0.General;1.Physical acoustics;2.Underwater sound;3.Mechanical vibration and shock;4.Noise and noise control;5.Ultrasonics;6.Speech acoustics and speech communication;7.Physio-logical acoustics;8.Architectural acoustics;9.Electroacoustics;10.Acoustical measurement andinstrumentation;11.Atmospheric acoustics;12.Geoacoustics;13.Bioacoustics;14.Musicalacoustics;15.Signal processing.     

Book review A History of Acoustics in China

ThisisthefirstmonographonacousticalcontributionsinChina,mostlyancient,andsomemodernuptol95o.AcousticsisoneofthebranchesofsciencewhichattractedChinesepeopleearly,startingwiththedevelopmentofmusicalinstruments.AtloooBCca,thetimeofJiahu,Wuyangdistrict,theboneflutalreadypossessed6-toneor7-tonescale.Musicalinstrumentsandmusicalscalearethemainattractions.EversincethebeginningoftheZhoudynasty,llOoBC,etiquetteandmusicmakingswereconsideredhighpoliticsinrulingthecountry,andmusicwasamongthesixartSof…     

Analytic subject index of acoustical papers in China

(Appeared in other periodicals than acta acustica all in Chinese)0.General;1.Physical acoustics;2.Underwater sound;3.Mechanical vibration and shock;4.Noise and noise control;5.Ultrasonics;6.Speech acoustics and speech communication;7.Physio-logical acoustics;8.Architectural acoustics;9.Electroacoustics; 10.Acoustical measurement andinstrumentation;11.Atmospheric acoustics,12.Geoacoustics,13.Bioacoustics;14.Musical acous-tics;15.Signal Prosessing. 0.GeneralAn outlook of some basic researches in hearing(Ⅰ),Fang Zhi,Applied Acoustics,9(1990),No.3,1.The acoustics design of auditorium of Beiing Worker's club,xiang duangqi,Applied Acoustics,9(1990), No.3,15.Principle and application of the SAW passive transponders,Suo Zhaohe,Applied Acoustics,9(1990), No.3,42.An international overview of human-machine speech communication,Zhang Jialu,Applied Acoustics,9(1990), No.4,35.     

Analytic subject index of acoustical papers in China

(0.General;1.Physical acoustics;2.Underwater sound;3.Mechanical vibration and shock;4.Noiseand noise control;5.Ultrasonics;6.Speech acoustics and speech communication;7.Physiologicalacoustics;8.Architectural acoustics;9.Electroacoustics;10.Acoustical measurement andinstrumentation;11.Atmospheric acoustics;12.Geoacoustics,13.Bioacoustics;14.Musical acoustics;15.Signal Prosessing.)     

Analytic subject index of acoustical papers in China

0.General;1.Physical acoustics;2.Underwater sound;3.Mechanical vibration and shock;4.Noise andnoise control;5.Ultrasonics;6.Speech acoustics and speech communication;7.Physiologica acoustics,8.Architectural acoustics;9.Electroacoustics;10.Acoustical measurement and instrumentation;11 .At-mospheric acoustics;12.Geoacoustics;13.Bioacoustics;14.Musical acoustics.15.Signal processing.     

Study of transversity GPDs from pseudoscalar mesons production at EIC of China

The exclusive η and π⁰ electroproduction is studied in the handbag approach based on the generalized parton distributions(GPDs) factorization. Predictions of π⁰ and η mesons are calculated for future electron-ion collider in China(EicC) energy ranges, using obtained cross sections we extract information on the transversity GPDs contributions to these processes.     

Forecasting volatility of fuel oil futures in China: GARCH-type,SV or realized volatility models?

In most previous works on forecasting oil market volatility, squared daily returns were taken as the proxy of unobserved actual volatility. However, as demonstrated by Andersen and Bollerslev (1998) [22], this proxy with too high measurement noise could be perfectly outperformed by a so-called realized volatility (RV) measure calculated by the cumulative sum of squared intraday returns. With this motivation, we further extend earlier works by employing intraday high-frequency data to compare the performance of three typical volatility models in the daily out-of-sample volatility forecasting of fuel oil futures on the Shanghai Futures Exchange (SHFE): the GARCH-type, stochastic volatility (SV) and realized volatility models. By taking RV as the proxy of actual daily volatility and then computing forecasting errors, we find that the realized volatility model based on intraday high-frequency data produces significantly more accurate volatility forecasts than the GARCH-type and SV models based on daily returns. Furthermore, the SV model outperforms many linear and nonlinear GARCH-type models that capture long-memory volatility and/or the asymmetric leverage effect in volatility. These results also prove that abundant volatility information is available in intraday high-frequency data, and can be used to construct more accurate oil volatility forecasting models.     

Trend of extreme precipitation events over China in last 40 years

Using the daily precipitation data of 740 stations in China from 1960 to 2000, the analysis on the variations and distributions of the frequency and the percentage of extreme precipitation to the annual rainfall have been performed in this paper. Results indicate that the percentage of heavy rains （above 25mm/day） in the annual rainfall has increased, while on average the day number of heavy rains has slightly reduced during the past 40 years. In the end of 1970s and the beginning of 1980s, both the number of days with extreme precipitation and the percentage of extreme precipitation abruptly changed over China, especially in the northern China. By moving t test, the abrupt change year of extreme precipitation for each station and its spatial distribution over the whole country are also obtained. The abrupt change years concentrated in 1978-1982 for most regions of northern China while occurred at various stations in southern China in greatly different/diverse years. Besides the abrupt change years of extreme precipitation at part stations of Northwest China happened about 5 years later in comparison with that of the country＇s average.     

R＆D Status of NFM and Neutron Source in China

1 R＆D status of NFM It is necessary to develop a series of fission chamber of different sensitivities, from high to very low sensitivity for covering the yield range of fusion neutrons 10^13 - 10^21n/s produced by ITER with appropriate redundancy and overlap of dynamic range from in-situ calibration to the full power operation. The high sensitivity fission chamber employs high purity ^235U （93%） as fissile material. Exceeding 4 g of ^235UO2 is coated on the multi-electrodes.