Ming tang yin yang Xia xiao zheng jing zhuan kao shi : 10 juan.

Blockprint.

西學凡Xi xue fan.Sur les sciences européennes.

Cat. imp., liv. 125, f. 31.Par le P. Aleni (1582-1649). Préfaces de Yang Ting jun (1623), de He Yi yuan (1626). Postface de Xiong Shi qi. Gravé par la mission du Fu jian, à la salle Qin yi, sans date.

Bei tang shu chao : [160 juan] /

On double leaves, oriental style, in 3 cases.

Tianjin Jiang xue zhai jiao yin zeng guang wu xu sui guan shang kuai lan ba shi zhong.

Mode of access: Internet.

Shi yan yang ji xue quan shu /

Cover title.

Shi jing xiao xue : 30 juan /

On double leaves, oriental style, in case.

Yuan chun tang bi ji : wu shi juan /

On double leaves, oriental style, in 2 cases.

Jing xun tang cong shu : shi qi zhong yi bai ling jiu juan /

Juan qian xu ci hang you ti "bing bu shi lang jian du cha yuan you fu du yu shi xun fu Shanxi Xi'an deng chu di fang zan li jun wu jian li liang xiang qin ci yi pin ding dai Bi Yuan zhuan".

Yang Zhongmin gong quan ji : 4 juan /

Imprint date from preface.

Dan jing zhai quan ji : wen chao 8 juan, shi chao 6 juan, ji yi kao 4 juan, shuo guan 2 juan, Bei feng shuo 2 juan, Li sao jian 2 juan /

Block print.

Some new bounds on eigenvalues of the Hadamard product and the Fan product of matrices

Let A and B be nonsingular M-matrices. A lower bound on the minimum eigenvalue q(B circle A(-1)) for the Hadamard product of A(-1) and B, and a lower bound on the minimum eigenvalue q(A star B) for the Fan product of A and B are given. In addition, an upper bound on the spectral radius rho(A circle B) of nonnegative matrices A and B is also obtained. These bounds improve several existing results in some cases and the estimating formulas are easier to calculate for they are only depending on the entries of matrices A and B. (C) 2009 Elsevier Inc. All rights reserved.

Characteristics of a 4-fold segmented clover detectore

Four high-purity germanium 4-fold segmented Clover detectors have been applied in the experiment of neutron-rich nucleus N-21. The performance of those, four Clovers have been tested with radioactive sources and in-beam experiments and the main results including energy resolution, peak-to-total ratios, the variation of the hit pattern distribution in difficult crystals of one Clover detector with the energy of gamma ray, and absolute full energy peak detection efficiency curve, were presented.

beta-delayed neutron decay of N-21

The beta-delayed neutron and gamma spectra of neutron-rich nucleus N-21 using beta-gamma and beta-n coincidence measurements were presented in this paper. Thirteen new neutron groups ranging from 0.28 MeV to 4.98 MeV and with a total branching ratio 88.7 +/- 4.2% were observed. One gamma transition among the excited states of O-21 and foury transitions among the excited states of O-20 were identified in the beta decay chain of N-21. The ungated half-life of 83.8 +/- 2.1 ms was also determined for N-21.

Efficiency calibration of neutron detector array for beta decay of exotic nuclei

The research of the in-beam efficiency calibration of Neutron Detector Array of Peking University using N-17 and C-16 beams was introduced in this paper. The efficiency of neutron wall and ball are comparable to the foreign similar devices and neutrons can be detected from low to high energies in high efficiency.