Proceedings of the Second Japan-China Seminar on Solar Physics
1993 July 6-8, Sagamihara

Preface		i
Group Photo		viii
Session 1: Observatory Reports
Solar Observations of Purple Mountain Observatory
	J. You	1
Solar Observation Instruments at Yunnan Observatory
	B. Zhang, Y. Ding, and R. Li	6
Solar Optical Instruments at the National Astronomical Observatory of Japan
	T. Sakurai	11
Hida Observatory of Kyoto University
	H. Kurokawa	17
H-alpha Telescope in Hiraiso and Future Plan
	M. Akioka	22
The Development of Imaging Spectrograph in the Solar Tower of Nanjing University
	Y.R. Huang, C. Fang, Z.G. Zhu, Y.Z. Xue, and X.F. Gao	28
Session 2: General Topics
Microwave, H$\alpha$ and Hard X-Ray Observations of the 1992 June 26 C7.3 Solar Flare
	H. Wang	33
Fe XXV Temperatures in Flares Determined from the Yohkoh BCS Experiment
	A.C. Sterling	37
Time Development of an X-Class Flare on 1992 June 28
	H. Nakajima, S. Enome, K. Shibasaki, M. Nishio, T. Takano, Y. Hanaoka, C. Torii, Y. Shiomi, H. Sekiguchi, T. Bushimata, S. Kawashima, N. Shinohara, Y. Irimajiri, H. Koshiishi, and Y.S. Choi	40
Changes of Vector Magnetic Field during Powerful Flares in Active Region NOAA 6659 on June 6, 1991
	H. Zhang	42
The Development of Magnetic Shear
	Jingxiu Wang	48
Recent Classifications of Solar Flares
	Jialong Wang	54
A Peak-to-Peak Correlation between Spikes and X-Ray Bursts during Type IV Bursts
	Z. Xia	59
Energy Distribution of Energetic Electrons in the Source of an Especially Great Radio Microwave Burst
	R. Zhao	65
Emission Mechanism of a Specific Solar Radio Microwave Burst
	R. Zhao	70
The Frequency Drift in Spike Radiation Observed on May 10, 1991
	R. Zhao, S. Jin, and Q. Qi	76
A Brief Analysis of Microwave FS Events Observed by BAO in 1991
	Q. Fu and B. Zhao	81
The Features of Spikes Received at 2545 and 2645 MHz Frequencies
	S. Jin and X. Li	87
The Reversion of Polarization Sense of Spikes Observed on May 16, 1991
	S. Jin, R. Zhao, X. Li, and Q. Qi	93
The Analysis of Solar Data at 2.84 GHz on May 16, 1991
	L. Zheng and Y. Liu	97
Diagnostics of Non-Thermal Processes in Chromospheric Flares: I. H&\alpha; and Ca II K-Line Profiles of an Atmosphere Bombarded by Hecta keV Electrons
	C. Fang, J.C. Henoux, and W.Q. Gan	102
Diagnostics of Non-Thermal Processes in Chromospheric Flares: II. H&\alpha; and Ca II K-Line Profiles of an Atmosphere Bombarded by Hecta keV Protons
	J.C. Henoux, C. Fang, and W.Q. Gan	103
Stability of Lundquist Field and Prominence Exposing Helical-Like Patterns
	A. Xu, G. Wu, and Heqi Zhang	104
Development of the Fast Reconnection Mechanism in a Sheared Field
	M. Ugai	110
Constructional Design of the Nine Channel Lyot Filter
	T. Li, Y. Chu, L. Zhu, and H. Lu	116
High Resolution Image Recovery by Speckle Interference Method in Huairou's 60cm Telescope
	Y. Deng, G. Ai, and B. Zhang	122
Some Schemes of Space Solar Telescope
	G. Ai	128
Session 3: NOAA 7321
Coordinated Observations of Solar Active Regions (NOAA 7260, 7270 and 7321) at Beijing Astronomical Observatory
	G. Ai, Hongqi Zhang, Q. Fu, and Jialong Wang	135
Observational Results of an Active Region (NOAA 7321) on October-November, 1992
	Hongqi Zhang, G. Ai, and T. Wang	141
Observations of the Magnetic Field Structure in NOAA 7321 Using the Solar Flare Telescope
	S. Kawakami	147
Optical and X-Ray Observations of the X9 Flare on 2nd Nov. 1992
	K. Ichimoto, T. Sakurai, Flare Telescope and Norikura Teams	151
Hard X-ray Images at the Flare on 1992 October 27
	T. Takakura	157
Evolution of Radio Features in a Flare Productuve Active Region NOAA 7321
	M. Nishio, T. Takakura, S. Enome, H. Nakajima, K. Shibasaki, T. Takano, Y. Hanaoka, Y.S. Choi, and H. Koshiishi	161
Hα and Soft X-Ray Activities in NOAA 7321 Region during 26--28 October, 1992
	Y. Suematsu and N. Tanaka	165
Session 4: NOAA 7260
An Overview of Active Region 7260
	J. You	169
A purely Polarized Radio Source Associated with NOAA 7260
	K. Shibasaki, S. Enome, H. Nakajima, M. Nishio, T. Takano, Y. Hanaoka, C. Torii, H. Sekiguchi, S. Kawashima, T. Bushimata, N. Shinohara, H. Koshiishi, and Y. Shiomi	175
A Flare of 1992 Aug.17 23:58 UT
	M. Takahashi, J.I. Sakai, T. Watanabe, T. Sakao, T. Kosugi, T. Sakurai, S. Enome, S. Tsuneta, N. Nitta, H.S. Hudson, and S. Hashimoto	176
Hard X-ray Images at the Flare on 1992 August 17
	T. Takakura	182
The Numerical Analysis on Characteristics of Plasma Temperature Variation about the Aug. 17, 25:58UT, 1992 Flare
	J. Zhao, J.I. Sakai, and B. Chargeishvili	187
Active Region Transient Brightenings in NOAA 7260
	T. Shimizu	193
X-ray Activity in Coronal Loops and Its Photospheric/Chromospheric Counterparts
	T. Sakurai, K. Shibata, K. Ichimoto, and M. Takata	198
Session 5: NOAA 7270
NOAA 7270: A Brief Report of Observations
	M. Wu	203
Emerging Flux Regions and Surge Activities in NOAA 7270
	H. Kurokawa, R. Kitai, Y. Funakoshi, Y. Nakai, K. Ichimoto, K. Shibata, and Hongqi Zhang	209
Flares on September 6, 1992
	R. Kitai, H. Kurokawa, Y. Funakoshi, Y. Nakai, K. Shibata, K. Yaji, N. Nitta, and Yohkoh Team and NOAJ Flare Telescope Team	215
Flares on Sept.6, 1992 in NOAA 7270: SXT Observations and Comparison with H-Alpha and HXT Observations
	K. Shibata, N. Nitta, R. Kitai, H. Kurokawa, K. Yaji, T. Sakurai, and Hongqi Zhang	220
Flares in the Region NOAA 7270 Observed with the Nobeyama Radioheliograph
	Y. Hanaoka	226
Meterwave Solar Radio Emission from NOAA 7260
	S. Watari, T. Isobe, and Yohkoh SXT Team	230
BCS Spectra from Flares on 6th September 1992
	T. Kato, T. Fujiwara, and Yohkoh BCS Group	236
Epilogue: A Poem by Jingxiu Wang		241
List of Participants		243