What's New

Sat Oct. 24, 2015
A new research topic: XFEL related Diffraction Analysis
Updated protein research results
Updated publications
Updated publication annual list

Wed Nov. 3, 2010
Summary of research results in 2010
New publications in 2010
Revised publication list
OASIS4.0 bug fixing version

Sun Oct. 25, 2009
New version of the program OASIS (Direct-method SAD/SIR phasing and reciprocal-space fragment extension for proteins) has been released. The current version is named OASIS 4.0. New features in this version include:
1. The SAD-phasing power is significantly enhanced by outputing Hendrickson-Lattman coefficients of the intrinsic unresolved bimodal phase distributions in addition to the direct-method phases and figures of merit. This enables the phase ambiguity to be re-broken by the ever-improving phases during the subsequent density modification and model building.
2. A GUI compatible with CCP4i is provided for controlling and monitoring the OASIS dual-space iteration processes. The dual-space iteration consists of phasing, density modification and model building. In order to use this GUI, the user should have CCP4, ARP/wARP and PHENIX preinstalled in the computer.
More details.
Reference: Acta Cryst. D65, 1213-1216 (2009) get PDF file

Fri Feb. 20, 2009
The program package VEC (Visual computing in Electron Crystallography) has been revised such that
(1) The program symbol1to2 converting one-line symbols to two-line symbols of (3+1)-dimensional superspace groups has been incorporated into VEC so that the latter can interpret both kinds of symbols;
(2) a bug on calculating structure factors of one-dimensionally incommensurate modulated crystals has been fixed. The correction has been verified by successfully matching the experimental electron microscopy image of an incommensurate crystal with a series of simulated images. The precompiled revised version of VEC and relevant materials are available here.
Reference: Chinese Physics B 18, No. 6, 2459-2463 (2009) get PDF file

Mon Dec. 31, 2007
The Web page has been extensively revised and updated. Some bugs in OASIS-2006 have been fixed.

Thu May 3, 2007
OASIS-2006 released

Wed Aug. 2, 2006
The Web page has been extensively revised and updated. New results of OASIS-2006 are presented. The program will be released in due course.

Tue Oct. 4, 2005
The document Direct-method_SAD_phasing.ppt has been extensively revised.

Mon Sept. 12, 2005
2005 preprints are available.

Mon Aug. 8, 2005
More examples on Dual-space fragment extension with SAD data are available.

Thu Aug. 7, 2005
In the program OASIS-2004 a bug of symmetry operation on the phase of equivalent reflections has been found and fixed. The revised file for downloading is oasis04.f.tar.zip.

Thu Apr. 7, 2005
OASIS-2004 released

Tue Sep. 21, 2004
New results on protein methods - major modifications on the program OASIS.

Mon May 3, 2004
New results on SAD phasing and preprints available.

Mon Mar. 29, 2004
2004 Progress on direct-method SAD phasing

Thu Nov. 20, 2003
Highlights of 2003: SAD phasing, why direct methods?

Sat May 3, 2003
Web page updated.

Sat Sep. 28, 2002
The new Tutorial for the program VEC is now available for FTP download.

Sat Aug. 3, 2002
A new Tutorial for the program VEC is now available. FTP download will be made possible in one month.

Fri May 24, 2002
New presentation on Methods of Solving Proteins is available.

Sat July 6, 2002
A new section showing Preprints has been added in the contents. Invited papers to be published for the 125th anniversary of Zeitschrift fuer Kristallographie and poster abstracts for the XIXth IUCr Congress are available.

Fri May 24, 2002
New presentation on Methods of Solving Proteins is available.

Fri May 3, 2002
New result on Direct-method phasing of MIR data is available.

Thu Feb 28, 2002 Announcement
Professor Fan Hai-fu is no longer head of the research group on Methods of Solving Crystal Structures since Feb. 2002. This Web page will no more represent the whole group, but will continuously report the progress of works directed by Fan.

Tue Feb 5, 2002
New results on powder methods and new presentation on pseudo symmetry are available.

Wed Jan 16, 2002
Programs DIMS and SAPI are available for download.

Tue Jan 15, 2002
This Web site (http://cryst.iphy.ac.cn) has been mirrored on CCP14

Fri Oct 7, 2001 Presentations on electron crystallography have been updated.

Fri Sep 28, 2001
New Links to Web Courses are available.

Fri Aug 31, 2001 The Web page has been fully updated. New results on methods for proteins are presented in the section Projects. PDF files (occasionally, Word documents or PowerPoint slides) are provided for most published articles and invited lectures.

Mon Dec 18 16:22:18 2000
VEC Released VEC - Visual computing in Electron Crystallography, is released on Dec. 18, 2000. You can download VEC through internet now!
Contact: webmaster

Thu Oct 12 18:20:09 2000
New Version of Projects are available now. Two projects are added: The Problem of Pseudo-symmetry and Methods for Powder Diffraction Analysis. One project are revised: Programs for Crystallographic Computing, it now includes documents of SAPI, DIMS, VEC and OASIS.
Contact: webmaster

Thu Aug 10 12:46:18 CST 2000
The program VEC is expected to be released at the end of this year. Tutorials are available.

Thu Oct 28 23:08:34 CST 1999
Some articles are available in Adobe® PDF (Portable Document Format), the files can be referenced either from Publications or Publications/PDF_files. To view PDF files, download a Acrobat-Reader from www.adobe.com/Acrobat: you may use it as a plug-in or use as an application by mime type: application/pdf associated to acroread.