Giant homopolymers with amphiphilicity

A novel class of amphiphilic dendronized homopolymers has been reported by The Department of Polymer Materials, Shanghai University. By tuning the structures, these polymers can show thermoresponsive properties and adopt ordered secondary structures or self-assemble into ordered porous films. The study is reported in Issue 12 (December 2010) of SCIENCE CHINA Chemistry because of its significant     

Recent advance in detonation theory

Trend

Recent advance in detonation theory     

A note from the editorial office

As we begin the year 2011, we first would like to thank all of our editorial board members, reviewers, authors, readers and collaborators for their great support     

Cooperative communications when collaborators are not synchronized

A basic challenge for future wireless communication systems is the contradiction between the fast growing demand for high speed wireless communications and the limited electromagnetic wave frequency spectrum. The multiple-input multiple-output (MIMO) technique with space-time coding (STC) is recognized as a promising scheme for the next-generation of high speed wireless communication systems. This is mainly because of its capability of providing spatial diversity to combat fading in wireless channels and increasing the capacity without     

Effervescent atomization spray: Understanding the modeling process

Trend

Effervescent atomization spray: Understanding the modeling process     

Editor’s note

It is a great honor to present this Special Topic of Chinese Science Bulletin on high-speed optoelectronic devices and technologies. High-speed optoelectronics is a rapid developing technology dealing with a wide range of disciplines and technologies, such as material sciences, photonics and microelectronics.     

A short report from the Editorial Office

Similar to last year, in this first issue of January 2012, we would like to summarize the recent progress made by the Chinese Science Bulletin (CSB), and to wish all of our editorial board members, reviewers, authors, readers, and collaborators a happy New Year. First, we are very pleased to announce the progress made in 2011: in March 2011,     

A new year message from Chinese Science Bulletin

The year 2009 is the 60th anniversary of the founding of the People’s Republic of China, and it is also the 60th founding anniversary of the Chinese Academy of Sciences (CAS). In the magnificent 60 years of development, sci-     

Graptolite fauna indicates the beginning of the Kwangsian Orogeny

A research at the State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,has shown,based on a refined division and correlation of the graptolite-bearing strata in southern Jiangxi,China,that the Kwangsian Orogeny commenced in the early Katian Age of the Late Ordovician. Because of its significant research value,this study is published in Volume 53,Issue 11 of SCIENCE CHINA Earth Sciences.     

The influence of estrogen on female mood changes

Trend

The influence of estrogen on female mood changes     

Study of flow induced by winding-shaped plasma actuators

How to improve the performance of the plasma actuators is a problem that is of great interest to many scientific researchers in the field of electrohydrodynamics.Professor WANG LianZe and his group from the School of Aerospace,Tsinghua University,set out to investigate     

Amorphous alloys——A kind of promising high-performance materials

Amorphous alloys, relatively recent metallic materials, exhibit many excellent properties because of their unique structure. They have attracted tremendous attention from both scientists and engineers since their initial discovery 50 years ago. In the early stages, scientists focused on developing new alloy systems with good amorphous structure forming ability and to un-     

Mn-doped ZnS is unsuitable to act as a dilute magnetic semiconductor

Trend

Mn-doped ZnS is unsuitable to act as a dilute magnetic semiconductor     

The structure-based design of zinc finger nucleases can facilitate genomic editing

A recent study of significant research value carried out at the State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou,     

A solidification mechanism transition of ternary Fe-Cu-Sn alloy induced by substantially undercooled state

Peritectic reaction is seriously limited by solute diffusion, it can rarely be completed during practical materials processing.One side, the grain refinement of primary phase dendrites resulting from high undercooling condition facilitates the completion of peritectic transformation. Otherwise, those peritectic alloys with positive mixing enthalpy usually display metastable     

New discoveries on the state of hemoglobin in living red blood cells

Professor Qin Wenbin from BaoTou Medical College first identified the hemoglobin(Hb)A2phenomenon 30 years ago.His first paper onthis phenomenon was published in Acta Biochimica et Biophysica Sinica,in Chinese,in1981.Subsequent research investigating its mecha-nism was published in Chinese in the Chinese Biochemical Journal and Progress Biochimica     

Discovery of primary exhalative hydrothermal dolostone in the Santanghu area,Xinjiang, NW China

Trend

Discovery of primary exhalative hydrothermal dolostone in the Santanghu area, Xinjiang, NW China     

The origin of giant ferroelectric distortion and the nature of pressure-induced spin-state transition in BiCoO_3

Multiferroic materials, which have coexisting magnetism and ferroelectricity, are of great technological and fundamental importance. Researchers from the Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, China have     

An important aspect of structural design of super-tall buildings and structures: Across-wind loads and effects

Trend

An important aspect of structural design of super-tall buildings and structures: Across-wind loads and effects     

Extended coulomb failure criteria for the zipingpu reservoir and longmenshan slip investigated by researchers at the Chinese Academy of Sciences

Trend

Extended coulomb failure criteria for the zipingpu reservoir and longmenshan slip investigated by researchers at the Chinese Academy of Sciences