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Progress on Sand Particle Morphology Published

May 23,2017

On May 17th, Géotechnique, the top international journal of geotechnical engineering, published the latest research results on three-dimensional reconstruction and multi-scale characterization of the sand particle morphology by Dr.Zhou Bo and Prof.Wang Huabin in the school of Civil Engineering and Mechanics. In recent years, with the development and application of high precision industrial CT technology and numerical simulation technology in geotechnical engineering, the observation of the physical and mechanical behaviors of geomaterials at mesoscopic scale has become a frontier research topic in this field. The study on the particle morphology of natural sands has become one of the hot and difficult problems in geotechnical engineering. The particle morphology has widely been acknowledged as the primary factor affecting the mechanical properties of sands under low stress conditions. The 3D reconstruction and characterization are the prerequisites for quantifying this morphological effect. In the paper entitled "Three-dimensional sphericity, fractal dimension of sand particles", the research group firstly obtained the three-dimensional (3D) morphological information of two kinds of sand particlesincluding the off-shore quartz sand and weathered granite residual sand by high-precision X-ray CT scanning and image processing. The spherical harmonic (SH) function was then used to reconstruct the accurate 3D morphology of these sand particles. Based on the SH-reconstructed particle surface, practical methods were proposed to calculate the 3D sphericity, roundness and fractal dimension of the sand particles. As a result, these parameters can be used for the characterization and quantification of the multi-scale morphological features of the sand particles. This study has been highly praised by Géotechnique's well-known reviewers: "This paper is a very welcome contribution to the field of morphological analysis of geomaterials. I would be very happy to see the work published. ". The first author of the paper, Dr. Zhou Bo, has focused on this research field for several years. A large amount of original findings and results were published in high-quality journals in geological and geotechnical fields, such as Engineering Geology, International Journal for Numerical and Analytical Methods in Geomechanics. Huazhong University of Science and Technology is the first author affiliation.  Dr. Zhou Bo and Prof. Wang Huabin (Professor) are co-corresponding authors, Prof. Wang Jianfeng of Department of Architecture and Civil Engineering in Hong Kong City University is the second author. The research work was supported by two research grants from the National Science Foundation of China and the key project of the 12th five-year plan of the ministry of science and technology.  The link of this paper: http://www.icevirtuallibrary.com/doi/abs/10.1680/jgeot.16.P.207  

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HUST Signed Cooperation Agreement with University of Birmingham

May 23,2017

On May 20th,2017, which is also the celebration day of the 110th anniversary of Tongji Medical College, Prof. Chen Jianguo, the Vice President of HUST, and Prof. Jon Frampton, the Vice President of University of Birmingham, signed the intercollegiate cooperation agreement. In the past few years, both HUST and UB have experienced a progressive cooperation from student exchange to joint research. Last year in 2016, HUST held a special “Birmingham Day” to introduce University of Birmingham all-around. It’s on these basis, both universities decided to push the bilateral relation further. By this agreement, both universities will extend the current cooperation to the field of medical education and environmental research. Vice President Prof. Chen expressed his hearty welcome to the guests and hoped both sides have more and deeper collaboration in the future. Mr. Mark Watchorn, the Deputy Counsul-General of UK in Wuhan also attended the signing ceremony. He pointed out in his speech that the intercollegiate cooperation between and among the best universities of these two countries is important to the civil exchange and cooperation between two countries. He himself was confident in this program. The International Exchange Center was responsible for the exploration of this program.      

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HUST Won 6 Golden Medals and 1 Silver Medal In 45th Inventions Geneva

April 17,2017

From March 29th to April 2nd,  45th International Exhibition of Inventions Geneva was held in Geneva. HUST won 6 golden medals and 1 silver medal, which made it the top list on Chinese universities. The six gold medalists are:  1.“Intelligent Micro Casting and Forging Technology ” by Prof. Zhang Haiou; 2.“Upper- Limb-Exoskeleton Robot by Mind Controlling” by Professor Xiong Caihua; 3.“Reduction of Emission by Using Oxygen-enriched combustion” by Prof. Zheng Chuguang, 4. “Plug-in Helmet-PET with high sensibility” by Professor Xie Qingguo ; 5.“Personal Dosiment-RadTarge-Mini”; 6. “The Spectrum Measurement Device with a High Resolution of  0.1picometer” by Prof. Ke Changjian. Project “Intelligent Auto 3-Dimension Measurement Systemby Professor Li Zhongwei won the silver medal. Sponsored by the Switzerland government as well as the Geneva government, the International Exhibition of Inventions Geneva was founded in 1973, and then it became an annual grand exhibition and also one of the biggest and most influential exhibitions in the world. This year over 1000 inventions made by industrials and individuals from around 40 countries and regions participated.

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2017 HUST Football League kicks off

April 12,2017

On 8th April, the annual HUST Football League kicked off at the Centre Playground. In the next two months, 39 football teams from 27 schools will engage in more than 150 football matches to compete for the championship.  In the first football match, the men’s football team from School of Mechanical Science and Engineering won the match 4-2.  The HUST Football League, hosted by the Committee for Physical Education and Sport of HUST, includes three divisions: Men’s A Grade, Men’s B Grade, and Women’s Grade. The Women’s Grade was first set up this year and was adopted for a five-a-side football match. Women’s football teams from 12 schools, such as School of Management, China-EU Institute for Clean and Renewable Energy, School of Public Administration, and School of Economics, signed up for the match.  Mr. Yi Yuanxiang, the Director of the Office of Student Affairs, Miss. Wang Xiaoyue, the Secretary of the Youth Committee of HUST, and Mr. Dai Zejian, the Deputy Minister of the Department of Postgraduate Administration, kicked off the first football match of the HUST Football League. Officials of the Sport Department of HUST attended the opening ceremony.

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Those Beautiful Birds in HUST

April 11,2017

The author of this report, whom we called Mr. Traveller, is a PH.D student majoring in Physics. In the past few years, he recorded those beautiful birds flying in the woods of HUST. Hoopoe (Upupa epops) is a bird in the Upupidae family. The picture was taken in the Youth Park. I mistook it for woodpecker at first, but in fact woodpecker’s bill is shorter than hoopoe’s. If you had followed a micro blogger named “Bowu Magazine”, you would know that his pet is a hoopoe.   Common Blackbird (Turdus merula) is a bird in the Turdidae family. The picture was taken in the Youth Park. It is a common resident breeding bird in southern China which is often mistaken for crow. But compared with crow, common blackbird is smaller and has a melodious song. Its yellow bill is also different from crow’s black one. Japanese thrush (Turdus cardis) is a bird in the Turdidae family. The picture was taken in the Youth Park. When I took this picture, I also wrote down the following words: “It was a perfect afternoon. After the rain the park was extraordinarily quiet. Mr. Thrush jumped on a branch and started to sing. His voice is so clear that purify every listener’s soul. Listen! What a melodious song!” Spotted dove (Spilopelia chinensis) is a bird in the Columbidae family. The picture was taken in the Youth Park. It is a small and somewhat long-tailed pigeon with a white-spotted black collar patch on the back and sides of the neck. This dove can be often seen if you walking around the Zisong Residential Area in the morning. Oriental Turtle Dove (Streptopelia orientalis) is a bird in the Columbidae family. The picture was taken in the Youth Park. This small species is very similar in habit to spotted dove. Different from spotted dove, it has a grey tip to the tail and more black in the outer web of the outer tail-feathers. Eurasian Tree Sparrow (Passer montanus) is a bird in the sparrow family. The picture was taken in the Youth Park. It is also known as the tree sparrow. It is the most common bird in China, which features a black patch on each pure white cheek.  Chinese Grosbeak (Eophona migratoria) is a bird in the Fringillidae family. The picture was taken in the Youth Park. Compared with the previous pictures, this picture is more vivid and casual. Its breeding season ranges from May to July. During this period, the adults will collect blades of grass and twigs to nest. Since Chinese Grosbeaks are social animals, in the winter you can often see a large flock of them fly up from the grass together and hide themselves in the Youth Park rapidly.    White-rumped Munia (Lonchura striata) is a bird in the Estrildidae family. The picture was taken in the Youth Park. It was a sunny morning when I took this picture. I was sitting on the lawn and taking pictures of the birds in the pond when a flock of White-rumped Munias flied over the pond and landed on the lawn. I turned around gently and began to take pictures of these lovely birds. Fortunately, these little birds just ignored me and put all the focus on grass seeds. In order not to disturb them, I chose to stop in the distance of one meter from them and took pictures of them. Asian paradise flycatcher (Terpsiphone paradisi) is a bird in the Monarchidae family. The picture was taken in the Youth Park. In a manner of speaking, the Asian paradise flycatcher is one of the most beautiful birds in the Youth Park. That day I was wandering in the Youth Park when I suddenly heard a chirp that is unfamiliar to me. The chirp made my heart leap with joy, since I knew that there must be a new species of bird in the park according to my experience. After a few minutes, I successfully found the Asian paradise flycatcher. It’s so fascinating. Its blue upperparts, maroon underparts and eyes which are surrounded by an eye ring that is a blue thin wattle are all fascinating. How lucky was I to meet it! Common kingfisher (Alcedo atthis) is a bird in the Alcedinidae family. The picture was taken in the Youth Park. It has blue upperparts, orange underparts and light red feet, which is small but lovely. People can often see a kingfisher perch on the statue which stands in the middle of the pond and look at the water intently. Suddenly, it hurtled into the water like an arrow and snatched up a fish with its bill within seconds. Light-vented Bulbul (Pycnonotus sinensis) is a bird in the bulbul family. The picture was taken in the Youth Park. When I was young, what waked me up was not only the sunlight but also the chirps of light-vented bulbuls. Therefore, this bird which is really common always holds a special meaning for me. Long-tailed Shrike (Lanius schach) is a bird in the Laniidae family. The picture was taken in the Youth Park. The dark mask through its eye often reminds people of the movie The Mask of Zorro. This species is known as “butcher bird” because of its feeding habits. With strong bills and claws, they can even hunt the birds which are bigger than themselves. Masked laughingthrush (Garrulax perspicillatus) is a bird in the Leiothrichidae family. The picture was taken in the Youth Park. As their name indicates, during the breeding season masked laughingthrushes becomes noise makers. Indian cuckoo (Cuculus micropterus) is a bird in the Cuculidae family. The picture was taken in the Youth Park. Its call is loud with four notes. They have been transcribed as "orange-pekoe", "bo-ko-ta-ko", "crossword puzzle" or "one more bottle". It was a summer day. At dusk, a cuckoo perched on the treetop and sang. Its voice was so loud and melodies that can be heard in every corner of the park. After a few minutes, I successfully found it and took this picture. Common Moorhen (Gallinula chloropus) is a bird in the Rallidae family. The picture was taken in the Youth Park. Its older name, common waterhen, is more descriptive of the bird's habitat, and it significantly differs from hen. You can easily find moorhens when you pass by the pond. They like to nest beside the statue which stands in the middle of the pond. In this picture, you can see eggs and baby moorhens. Little grebe (Tachybaptus ruficollis) is a bird in the grebe family. The picture was taken in the Youth Park. Little grebes can be often seen in the pond of the Youth Park. Though they are mistaken for wild ducks by many people, they are not close relatives to ducks. In the summer of 2015, I noticed that little grebes were incubating the eggs and then decided to do a follow-up shot. I used my camera to record the growth of these little grebes. Taiga Flycatcher (Ficedula albicilla) is a bird in the Muscicapidae family. The picture was taken in the Youth Park. Its orange-red coloration on the throats often reminds me of babies’ bibs. Oriental Magpie-Robin (Copsychus saularis) is a bird in the Turdidae family. The picture was taken in the Youth Park. It is a distinctive black and white bird which looks quite similar to magpie. Its long tail which is held upright as it forages on the ground and melodious song make it seem to be more vivacious. Common magpie (Pica pica) is a bird in the crow family. The picture was taken in West-Twelve Teaching Building. The common magpie is twice the length of the oriental magpie-robin. Its strong figure is well matched to its valor and vigor. They bravely drive away any birds that invade their territory, even if those invaders are raptors. In China, magpie is a symbol of auspiciousness. Its Latin name, Pica Pica, is also very interesting. Eurasian jay (Garrulus glandarius) is a bird in the crow family. The picture was taken in the Youth Park. The little bird in the picture seems to be very hungry. What a lovable bird! By the way, homeless dogs and cats do pose a threat to those wild birds. Azure-winged magpie (Cyanopica cyanus) is a bird in the crow family. The picture was taken in the Youth Park. The internal monologue of Mr. Magpie: “Why it is always hungry?” Chinese pond heron (Ardeola bacchus) is a bird in the heron family. The picture was taken in the Youth Park. This species is often seen in summer. Little egret (Egretta garzetta)) is a bird in the heron family. The picture was taken in the East-Nine Lake. Since I live in the western part of the campus, I have few chances to visit the East-Nine Lake which is located in the eastern part of the campus. The East-Nine Lake is the habitat of many species, such as little egrets which are as elegant as fairies dressing in white. Black-winged stilt (Himantopus himantopus) is a bird in the stilt family. The picture was taken in the East-Nine Lake. In winter, people can often see black-winged stilts forage in waters off the shoal. Except for black-winged stilts, green sandpipers and black-headed gulls are widely seen as well. Black-eared Kite (Milvus migrans lineatus) is a bird in the Accipitridae family. The picture was taken in the East-Nine Lake. Black-eared Kite is the most common raptor in China and one of China's second-class protected animal species. For me, it is a symbol of sky and freedom. The black-eared Kite standing on the tree.  

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Nature Energy Published WNLO Research on Solar Cells with a ZnO Buffer Layer

April 10,2017

On March 27th, the new findings by Professor Tang Jiang’s research group of Wuhan National Lab of Optoelectronics appeared on-line in Nature Energy, The related title on Nature Energy is “Stable 6%-efficient Sb2Se3 solar cells with a ZnO buffer layer”. A new wave of new energy has been set up in the world in the context of energy crisis and environment pressure, while the solar energy takes the first place in the research field. The solar cell with a ZnO buffer layer has the merits of low production cost, weak light, light weight good flexibility, and excellent power generation performance in high temperature. Comparing with the silicon-based solar cell, it has a competitive advantage in photovoltaic building integration and mobile power supply. Currently the most successful solar cells with buffer layer on the market are cadmium telluride (CdTe) batteries, but Cd is highly toxic and Te is scarce. Professor Tang Jiang’s research group has been focused on the new type of the solar cells with Sb2Se3 buffer layer all the time. The research group has published papers in Advanced Energy Materials, ACS Applied Materials and Interface, Applied Physics Letters, Progress in Photovoltaics and Nature Photonics. The study shows, Sb2Se3 boasts primary merits as CdTe like simple preparation, excellent optical properties and other core advantages, but the abundance of antimony selenide itself is non-toxic and elements. Thus, it embraces a brilliant future to become the "green CdTe". The research adopted the spray pyrolysis method with zinc nitrate aqueous solution rather than the previous CDs (CdS) as the solar cell with an antimony selenide buffer layer so as to make the Zinc Oxide Research (ZnO). The material itself and preparation method are green and economic. The antimony selenide is one-dimensional material, namely (Sb4Se6) n molecular chain accumulated in two directions by Vander Ed Ley, which is similar to the crystallization of one dimensional polymer, so buffer layer’s orientation is very important and has great influence on the performance of the device. The experimental results show, the random orientated Zinc oxide can induce the [221] the oriented antimony selenide buffer layer, while the [001] oriented Zinc Oxide induces the [120] oriented antimony selenide buffer layer. The basement and the antimony selenide buffer layer are highly correlated. The analysis of the interface atom model shows that the randomly oriented Zinc Oxide is available to more (100) surfaces, which is beneficial to the orientation induction.by bonding the subsequent growing CdSe and reducing the total energy of the interface. The defects of such interface are fewer and the recombination loss is reduced, which can be proved by the spectrum of external quantum efficiency and the open circuit voltage test.  By optimizing the buffer layer processing with Zinc Oxide and antimony selenide back field processing, the researchers finally made the solar cell with a antimony selenide buffer layer of FTO/ZnO/Sb2Se3/Au. The photoelectric conversion efficiency of FTO/ZnO/Sb2Se3/Au reaches 5.93%. This solar cell has been certificated by the Newport. More importantly, the prepared solar cells show excellent stability in packaging conditions, and can endure the double 85 (temperature 85 C, humidity 85%), maximum power point, strong ultraviolet radiation, heat shock and other critical stability test. It can basically meet the IEC61646 standard for solar cell industrial application. Compared with the cadmium sulfide buffer layer, the stability of the Zinc Oxide buffer layer is obviously improved, and the reasons are as following: First principle calculation shows that energy diffusion of Zn atoms in antimony selenide is greater than Cd. The spatial element distribution results under HADDF-STEM show that the energy diffusion of Cd in Antimony selenide approaches 50nm and Zn is barely measurable. Therefore, the interfacial diffusion of ZnO/Sb2Se3 is low but stable. The open circuit voltage decay test of monochromatic light also shows that the Zinc Oxide absorbs little light, and the damage caused by the photo-generated hole on the antimony selenide is inhibited. The study represents a new idea and new method of one-dimensional material orientation control, and a preliminary solution for the three key factors of solar cell application among the four ones (efficiency, stability, low cost and llittle toxicity), It is a great progress. After the article was published, the fellow of MRS and APS, Dr. Supratik Guha of Argonne National Laboratory in the United States wrote an article-" Buffer against degradation" on the news &views, and commented that “The reduced toxicity and improved stability shown by Tang and colleagues are significant milestones”. Doctor Wang Liang, Li Kanghua and Chen Chao, and postdoctor Li Dengbing are the first authors of the paper, Professor Tang Jiang is the corresponding author of the paper. This research was supported by the National Key Research and Development Plan, the Key Research and Development Plan of the Fund Committee and the Project Funding for Excellent Youth. The study has also received support and help from associate professor Li Luying, associate research fellow Niu Guangda, professor Huang Feng of Zhongshan University, Song Haisheng, deputy director of Wuhan National Lab of Optoelectronics, and Deng Huixiong, associate professor of Institute of semiconductors, Chinese Academy of Sciences,

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ZALL Group Donate 5 Million to HUST

April 06,2017

On April 1st the ZALL Group donated 5 million RMB to HUST for the latter’s further construction. On the donation ceremony, Mr. Yan Zhi, the CEO of ZALL, pointed out that the donation was the best way to give back to the society because ZALL had benefited a lot from all walks of the life in its development. President Prof. Ding Lieyun expressed his appreciation to ZALL. He also briefly introduced the latest development blueprint to ZALL and wished both sides could further the bilateral cooperation in more fields. Leaders of HUST Education Development Foundation and the School of Architecture and Urban Planning also attended the ceremony. It's recorded that in 2014 ZALL Group donated to the Zhang Peigang Foundation of HUST.  

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Running Up in HUST

April 05,2017

On April 2nd, around 6000 runners were running up in HUST campus. They started from the South Entrance Square, ran through the Youth Park, passed the School of Management, later crossed the Museum of HUST, finally backed to the start point. The whole journey covered five kilometers. The Running-Up activity was part of the 2016-2017 China University Marathon, HUST Stop. President Ding Lieyun and his colleagues attended the opening ceremony. After a fierce competition, Tan Xiuying, Luo Lingyun and Yang Xue hit the top three of Woman Staff Group, Wang Chuansheng, Dai Ke and Zhang Zhi won the top three of Man Staff Group. Mao Lichun, Shi Lerong and Li Zhuoru won top three of Woman Student Group, Li Xin, Huang Hui and Zhang Xi won top three of Man Student Group. In recent years, HUST has held various kinds of jogging and running activities. The Running-Up in HUST this year even attracted alumni from Singapore to join in. The 2016-2017 China University Marathon (HUST stop) was Co-held by Federation of University Student of China (FUSC )and HUST.    

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Prof. Richard B. Freeman of Harvard Honored as HUST Advisory Professor

March 10,2017

In the morning of February 22nd, Harvard Prof. Richard B. Freeman was honored as the Advisory Professor of HUST. The HUST Vice President Ms. Zhan Yiqing issued the certificate. Prof. Richard B.Freeman currently is the American national academician of arts and sciences and meanwhile he is also Herbert Ascherman Professor of Economics, Harvard University. The vice dean of HUST School of Economics, Prof.Ouyang Hongbing, made a brief introduction of the academic achievements of Prof. Freeman on economy and related subjects. Zhan Yiqing extended warm welcome to Prof. Freeman for his joining HUST. She pointed out that HUST School of Economics had held a long cooperation with Harvard University. As an internationally-recognized economist, Prof. Freeman’s participation is of great significance to the development of School of Economics. After the meeting, Prof. Freeman lectured on the Economics Forum for the Memory of Prof. Zhang Peigang. He shared his understanding about the patent booming phenomenon appeared in China and worldwide. It indicated that China is welcoming her age of invention and creation.  Prof. Freeman is expected to explore further cooperation with HUST in the fields of Labor Economics and Creation and Patent Application.          

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Wuhan National Laboratory for Optoelectronics (WNLO) Progress in Papers

March 02,2017

It’s reported that totally 17 papers first authored or corresponding authored by researchers of the Wuhan National Laboratory for Optoelectronics have been published on Nature, Science, Cell, and other world-recognized journals from 2010to 2016.Among the papers 4 were published in Science, 2 in Nature Photonics, and 7 in Nature Communications. All these papers have been cited 1995 times by SCI in total with the highest single paper citation as 780 times and per thesis average citation 117.35 times. Four papers, namely “Efficient and stable large-area perovskite solar cells with inorganic charge extraction layers” (Professor Chen Wei as the first author) and “A hole-conductor-free, fully printable mesoscopic perovskite solar cell with high stability” (Professor Han Hongwei as the corresponding author) in Science, “Thin-film Sb2Se3 photovoltaics with oriented one-dimensional ribbons and benign grain boundaries” (Professor Tang Jiang as the corresponding author) in Nature Photonics, and “Terabit free-space data transmission employing orbital angular momentum multiplexing” (Professor Wang Jian as first author and correspondent) in Nature Photonics, have been selected as the ESI Highly cited papers. Meanwhile, the past several years have witnessed a significant increase in the published paper growth rates on OE and OL.Totally 531papers have been published in these two journals from 2009 to 2016. The quantities of papers on OE and OL authored by WNLO researchers have grown rapidly with each passing year (see the upper chart). Compared with world-known optical institutions, Wuhan National Laboratory for Optoelectronics comes out top in papers quantities, growth rates and cited times on OE and OL. Note: all data came from the Web of Science database, and the citing deadline was February 15, 2017. ESI highly cited papers refer to the SCI papers published in the past 10 years within the world's top 1% cited times in the corresponding disciplines

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