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Hefei, China

Hefei University of Technology is a major university in China, with particular strength in Engineering and Management Science. It is located in Hefei, the capital of the Anhui Province.Hefei University of Technology is a national key university administrated directly by the Ministry of Education. It has been listed in major national initiatives seeking to enhance the international competitiveness of the top-tier universities in China such as Project 211 and Project 985 Innovation Platform.Since its founding in 1945, it has been committed to cultivating talent with excellence, advancing science and technology, pushing social development, and promoting culture, with the spirit best manifested in the university motto "pursuing virtue and knowledge, seeking truth and innovation".HFUT has four campuses – Tunxilu, Lu'anlu, Feicuihu and Xuancheng – covering an area of about 3,417,390 m². The first three campuses are located in Hefei, the provincial capital of Anhui, and the fourth is in Xuancheng, a city about 194 kilometers away from Hefei.Campuses in Hefei have 19 schools covering a wide range of fields with a strong focus on engineering science. The schools offer 82 undergraduate programs, 32 first-level disciplines with authorization to confer master degrees, 12 first-level disciplines for doctoral programs as well as 12 post-doctoral programs. 4 disciplines are selected as national key disciplines and 28 are provincial key disciplines. The university has 1 state key lab, 1 national engineering lab, 4 national university-industry joint engineering research centers and 46 research centers at the ministerial or provincial level as well as 1 national A-level architectural design and research institute. The campus in Xuancheng has 5 departments.The university has a high-level faculty team consisting of 1,824 full-time teachers, among whom 33 enjoy special government allowances of the State Council in recognition of outstanding achievements in their fields. It also boasts 1 academician of the Chinese Academy of Engineering, 8 distinguished experts of the national Thousand Talents Program, 6 accredited professors and 7 chair professors of Yangtze Scholar Program, 5 granted with funds from the National Outstanding Youth Science Foundation, 1 member of Disciplinary Appraisal Panel of the State Council, 1 member of Academic Degrees Committee of the State Council, 10 winners of the national awards for top teachers, etc. The efforts of the dedicated faculty empower the advancement of the university. At present, HFUT enrolls 29,480 undergraduate students and 11,800 graduate students. It has made remarkable achievements in student education. Throughout the years, key disciplines, courses, textbooks, teaching and experiment centers, teaching staff of HFUT have won numerous awards at all levels, highly reputed in China. It is among the first batch of 61 pilot colleges and universities to conduct the Education and Development Plan for Outstanding Engineers initiated by the Ministry of Education. About 200 projects carried out by HFUT students have been funded by the National University Student Innovation Program. HFUT is dedicated to educating its graduates to become innovative engineering talents with professional proficiency, positive working attitude and entrepreneurship.HFUT sticks to innovation and the integration of teaching, research and production. It has a long-established, application-oriented research culture, and it is keen to support the academics in conducting research that has impact and practical value. It is committed to promoting the development of regional economy by catering to the strategic objectives and needs of the industries, the community and the nation. In 2013, the university has an annual research funding in science of over RMB 447 million. The applications for invention patents total 357, of which 204 are licensed; besides, 82 computer software patents are granted. In recent years, HFUT has won 5 national science-and-technology-related awards, and 19 first prizes at the ministerial or provincial level.HFUT is actively pursuing connections with leading institutions through academic partnerships with top universities worldwide. By supporting a wide range of collaborative activities including faculty and student exchange projects, joint supervision plan and international programs at all levels, HFUT has established academic links with more than 30 prestigious universities around the world, such as Ohio State University in U.S.A. Meanwhile, hundreds of international students from over 30 countries and regions are studying at HFUT.Hefei University of Technology, with its 70-year achievements in several key disciplines, is now striving for even greater success with the ultimate goal of becoming a top innovative university with international prestige and distinctive features. Wikipedia.

Zhao Y.,Xiamen University | Liang W.,Hefei University of Technology
Chemical Society Reviews | Year: 2012

This tutorial review primarily illustrates rate theories for charge transfer and separation in organic molecules for solar cells. Starting from the Fermi's golden rule for weak electronic coupling, we display the microcanonical and canonical rates, as well as the relationship with the Marcus formula. The fluctuation effect of bridges on the rate is further emphasized. Then, several rate approaches beyond the perturbation limit are revealed. Finally, we discuss the electronic structure theory for calculations of the electronic coupling and reorganization energy that are two key parameters in charge transfer, and show several applications. © 2012 The Royal Society of Chemistry. Source

Liu R.,Hefei University of Technology
Monthly Notices of the Royal Astronomical Society | Year: 2013

We report in this paper a solar eruptive event, in which a vertical current sheet (VCS) is observed in the wake of an erupting flux rope in the Solar Dynamic Observatory (SDO)/Atmospheric Imaging Assembly (AIA) 131Å passband. The VCS is first detected following the impulsive acceleration of the erupting flux rope but prior to the onset of a non-thermal hard X-ray (HXR)/microwave burst, with plasma blobs moving upwards at speeds up to 1400 km s-1 along the sheet. The timing suggests that the VCS with plasma blobs might not be the primary accelerator for non-thermal electrons emitting HXRs/microwaves. The initial, slow acceleration of the erupting structure is associated with the slow elevation of a thermal looptop HXR source and the subsequent, impulsive acceleration is associated with the downward motion of the looptop source. We find that the plasma blobs moving downwards within the VCS into the cusp region and the flare loops retracting from the cusp region make a continuous process, with the former apparently initiating the latter, which provides a 3D perspective on reconnections at the VCS. We also identify a dark void moving within the VCS towards the flare arcade, which suggests that dark voids in supra-arcade downflows are of the same origin as plasma blobs within the VCS. ©2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Source

Popov A.A.,Leibniz Institute for Solid State and Materials Research | Yang S.,Hefei University of Technology | Dunsch L.,Leibniz Institute for Solid State and Materials Research
Chemical Reviews | Year: 2013

One of the attractive properties of the hollow carbon clusters, known as fullerenes, is the possibility to use them as robust containers for other species. The field of chemical derivatization of EMFs has flourished in the past decade. Many cyclo- as well as radical addition reactions of EMFs are described forming a basis for the targeted synthesis of EMF-based functional materials. The a plications for EMFs as MRI contrasting agents and as electron-accepting blocks in photovoltaic devices are now considered as the most promising. Importantly, the reactivity and addition patterns of EMFs are significantly different from those of empty fullerenes. Advanced synthetic approaches and the progress in separation techniques dramatically improved the situation with availability of the EMF samples, which resulted in more dedicated and detailed studies of their structural, electronic, physical, and chemical properties. In the 1990s the field of the EMFs remained in the shadow of the empty fullerenes, which often resulted in the blind transfer of the guidelines, structural and chemical properties revealed for the empty fullerenes onto EMFs. Source

Interactions at plate boundaries induce stresses that constitute critical controls on the structural evolution of intraplate regions. However, the traditional tectonic model for the East Asian margin during the Mesozoic, invoking successive episodes of paleo-Pacific oceanic subduction, does not provide an adequate context for important Late Cretaceous dynamics across East Asia, including: continental-scale orogenic processes, significant sinistral strike-slip faulting, and several others. The integration of numerous documented field relations requires a new tectonic model, as proposed here. The Okhotomorsk continental block, currently residing below the Okhotsk Sea in Northeast Asia, was located in the interior of the Izanagi Plate before the Late Cretaceous. It moved northwestward with the Izanagi Plate and collided with the South China Block at about 100. Ma. The indentation of the Okhotomorsk Block within East Asia resulted in the formation of a sinistral strike-slip fault system in South China, formation of a dextral strike-slip fault system in North China, and regional northwest-southeast shortening and orogenic uplift in East Asia. Northeast-striking mountain belts over 500. km wide extended from Southeast China to Southwest Japan and South Korea. The peak metamorphism at about 89. Ma of the Sanbagawa high-pressure metamorphic belt in Southwest Japan was probably related to the continental subduction of the Okhotomorsk Block beneath the East Asian margin. Subsequently, the north-northwestward change of motion direction of the Izanagi Plate led to the northward movement of the Okhotomorsk Block along the East Asian margin, forming a significant sinistral continental transform boundary similar to the San Andreas fault system in California. Sanbagawa metamorphic rocks in Southwest Japan were rapidly exhumed through the several-kilometer wide ductile shear zone at the lower crust and upper mantle level. Accretionary complexes successively accumulated along the East Asian margin during the Jurassic-Early Cretaceous were subdivided into narrow and subparallel belts by the upper crustal strike-slip fault system. The departure of the Okhotomorsk Block from the northeast-striking Asian margin resulted in the occurrence of an extensional setting and formation of a wide magmatic belt to the west of the margin. In the Campanian, the block collided with the Siberian margin, in Northeast Asia. At about 77. Ma, a new oceanic subduction occurred to the south of the Okhotomorsk Block, ending its long-distance northward motion. Based on the new tectonic model, the abundant Late Archean to Early Proterozoic detrital zircons in the Cretaceous sandstones in Kamchatka, Southwest Japan, and Taiwan are interpreted to have been sourced from the Okhotomorsk Block basement which possibly formed during the Late Archean and Early Proterozoic. The new model suggests a rapidly northward-moving Okhotomorsk Block at an average speed of 22.5. cm/yr during 89-77. Ma. It is hypothesized that the Okhotomorsk-East Asia collision during 100-89. Ma slowed down the northwestward motion of the Izanagi Plate, while slab pull forces produced from the subducting Izanagi Plate beneath the Siberian margin redirected the plate from northwestward to north-northwestward motion at about 90-89. Ma. © 2013 Elsevier B.V. Source

Wu Y.-B.,Wuhan University | Zheng Y.-F.,Hefei University of Technology
Gondwana Research | Year: 2013

The formation of collisional orogens is a prominent feature in convergent plate margins. It is generally a complex process involving multistage tectonism of compression and extension due to continental subduction and collision. The Paleozoic convergence between the South China Block (SCB) and the North China Block (NCB) is associated with a series of tectonic processes such as oceanic subduction, terrane accretion and continental collision, resulting in the Qinling-Tongbai-Hong'an-Dabie-Sulu orogenic belt. While the arc-continent collision orogeny is significant during the Paleozoic in the Qinling-Tongbai-Hong'an orogens of central China, the continent-continent collision orogeny is prominent during the early Mesozoic in the Dabie-Sulu orogens of east-central China. This article presents an overview of regional geology, geochronology and geochemistry for the composite orogenic belt. The Qinling-Tongbai-Hong'an orogens exhibit the early Paleozoic HP-UHP metamorphism, the Carboniferous HP metamorphism and the Paleozoic arc-type magmatism, but the three tectonothermal events are absent in the Dabie-Sulu orogens. The Triassic UHP metamorphism is prominent in the Dabie-Sulu orogens, but it is absent in the Qinling-Tongbai orogens. The Hong'an orogen records both the HP and UHP metamorphism of Triassic age, and collided continental margins contain both the juvenile and ancient crustal rocks. So do in the Qinling and Tongbai orogens. In contrast, only ancient crustal rocks were involved in the UHP metamorphism in the Dabie-Sulu orogenic belt, without involvement of the juvenile arc crust. On the other hand, the deformed and low-grade metamorphosed accretionary wedge was developed on the passive continental margin during subduction in the late Permian to early Triassic along the northern margin of the Dabie-Sulu orogenic belt, and it was developed on the passive oceanic margin during subduction in the early Paleozoic along the northern margin of the Qinling orogen. Three episodes of arc-continent collision are suggested to occur during the Paleozoic continental convergence between the SCB and NCB. The first episode of arc-continent collision is caused by northward subduction of the North Qinling unit beneath the Erlangping unit, resulting in UHP metamorphism at ca. 480-490. Ma and the accretion of the North Qinling unit to the NCB. The second episode of arc-continent collision is caused by northward subduction of the Prototethyan oceanic crust beneath an Andes-type continental arc, leading to granulite-facies metamorphism at ca. 420-430. Ma and the accretion of the Shangdan arc terrane to the NCB and reworking of the North Qinling, Erlangping and Kuanping units. The third episode of arc-continent collision is caused by northward subduction of the Paleotethyan oceanic crust, resulting in the HP eclogite-facies metamorphism at ca. 310. Ma in the Hong'an orogen and low-P metamorphism in the Qinling-Tongbai orogens as well as crustal accretion to the NCB. The closure of backarc basins is also associated with the arc-continent collision processes, with the possible cause for granulite-facies metamorphism. The massive continental subduction of the SCB beneath the NCB took place in the Triassic with the final continent-continent collision and UHP metamorphism at ca. 225-240. Ma. Therefore, the Qinling-Tongbai-Hong'an-Dabie-Sulu orogenic belt records the development of plate tectonics from oceanic subduction and arc-type magmatism to arc-continent and continent-continent collision. © 2012 International Association for Gondwana Research. Source

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