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| 1 | Microwave Synthesis of Large Few-Layer Graphene Sheets in Aqueous Solution of Ammonia显示文摘Few-layer graphene (FLG) sheets with sizes exceeding several micrometers have been synthesized by exfoliation of expanded graphite in aqueous solution of ammonia under microwave irradiation, with an overall yield approaching 8 wt.%. Transmission electron microscopy (in bright-field and dark-field modes) together with electron diffraction patterns and atomic force microscopy confirmed that this graphene material consisted mostly of mono-, bi- or few-layer graphene (less than ten layers). The high degree of surface reduction was confirmed by X-ray photoelectron and infrared spectroscopies. In addition, the high stability of the FLG in the liquid medium facilitates the deposition of the graphene material onto several substrates via low-cost solution-phase processing techniques, opening the way to subsequent applications of the material. | Izabela Janowska Kambiz Chizari Ovidiu Ersen Spyridon Zafeiratos Driss Soubane Victor Da Costa Virginie Speisser Christine Boeglin Matthieu Houllé Dominique Bégin Dominique Plee Marc-Jacques Ledoux Cuong Pham-Huu | 2010 | Nano Research2010，3，2： | 22 |
| 2 | Mapping mountain areas: learning from Global, European and Norwegian perspectives显示文摘Defining the spatial extent of mountain areas has long been a challenge. In the present century, the availability of digital elevation models(DEMs) incorporated into geographic information systems(GIS) has allowed the definition of mountain areas based on topographic and other criteria. This paper presents the various delineations of mountains that have been prepared at three scales – global, regional(Europe), and national – and explores the reasons and processes leading to these delineations, and how they have been used. A detailed case study is then presented for Norway. Overall, two types of approaches to mapping mountains have been taken: first, considering mountains per se, based on elevation and/or topography; second, considering them among other categories, e.g., landforms or biogeographical, environmental or landscape zones. All attempts to map mountain areas derive essentially from the objectives of those commissioning and/or undertaking the work; a unitary definition remains unlikely. | Martin F.PRICE Tor ARNESEN Erik GL?ERSEN Marc J.METZGER | 2019 | Journal of Mountain Science2019，16，1： | 3 |
| 3 | Results of the open surgery after endoscopic basket impaction during ERCP procedure显示文摘AIM:To report the results of open surgery for patients with basket impaction during endoscopic retrograde cholangiopancreatography(ERCP) procedure.METHODS: Basket impaction of either classical Dormia basket or mechanical lithotripter basket with an entrapped stone occurred in six patients.These patients were immediately operated for removal of stone(s) and impacted basket.The postoperative course,length of hospital stay,diameter of the stone,complication and the surgical procedure of the patients were reported retrospectively.RESULTS: Six patients(M/F,0/6) were operated due to impacted basket during ERCP procedure.The mean age of the patients was 64.33 ± 14.41 years.In all cases the surgery was performed immediately after the failed ERCP procedure by making a rightsubcostal incision.The baskets containing the stone were removed through longitudinal choledochotomy with the stone.The choledochotomy incisions were closed by primary closure in four patients and T tube placement in two patients.All patients were also performed cholecystectomy additionally since they had cholelithiasis.In patients with T-tube placement it was removed on the 13 th day after a normal T-tube cholangiogram.The patients remained stable at postoperative period and discharged without any complication at median 7 d.CONCLUSION: Open surgical procedures can be applied in patients with basket impaction during ERCP procedure in selected cases. | Sezgin Yilmaz Ogun Ersen Taner Ozkececi Kadir S Turel Serdar Kokulu Emre Kacar Murat Akici Murat Cilekar Ozgur Kavak Yuksel Arikan | 2015 | World Journal of Gastrointestinal Surgery2015，7，2： | 2 |
| 4 | The effect of cooling rate and rapeseed oil addition on the melting behav- ior, testure and microstructure of anhydrous milk fat 显示文摘 | KAUFMANN N AND ERSEN U WIKING L | 2012 | Int Dairy J2012，25，2： | 1 |
| 5 | Synthesis of hydroxyapatite nanotubes for biomedical applications显示文摘 | Balasaheb B. Chandanshive Priyanka Rai Andre L. Rossi Ovidiu Ersen Deepa Khushalani | 2013 | Materials Science & Engineering C2013，，5： | 1 |
| 6 | Stability and prediction of schizophrenia from adolescence to adulthood 显示文摘 | Helgeland MI Toi^ersen S | 2005 | Eur Child Adolesc Psychiatry2005，14，2： | 1 |
| 7 | Carbon nanotubes decorated α-Al_2O_3 containing cobalt nanoparticles for Fischer-Tropsch reaction显示文摘A new hierarchical composite consisted of multi-walled carbon nanotubes (CNTs) layer anchored on macroscopic α-Al2O3 host matrix was synthesized and used as support for Fischer-Tropsch synthesis (FTS). The composite constituted by a thin shell of a homogeneous, highly entangled and structure-opened carbon nanotubes network and it exhibited a relatively high and fully accessible specific surface area of 76 m 2 g-1 , compared with that of 5 m 2 g-1 of the original α-Al2O3 support. The metal-support interaction between carbon nanotubes surface and cobalt precursor and high effective surface area led to a relatively high dispersion of cobalt nanoparticles. This hierarchically supported cobalt catalyst exhibited a high FTS activity along with an extremely high selectivity towards liquid hydrocarbons compared with the cobalt-based catalyst supported on pristine α-Al2O3 or on CNTs carriers. This improvement can attribute to the high accessibility of composite surface area comparing with the macroscopic host structure alone or to the bulk CNTs where the nanoscopic dimension induced a dense packing with low mass transfer which favoured the problem of reactants competitive diffusion towards the cobalt active site. In addition, intrinsic thermal conductivity of decorated CNTs could help the heat dissipating throughout the catalyst body, thus avoiding the formation of local hot spots which appeared in high CO conversion under pure syngas feed in FTS reaction. Cobalt supported on CNTs decorated α-Al2O3 catalyst also exhibited satisfied high stability during more than 200 h on stream under relatively severe conditions compared with other catalysts reported in the literature. Finally, the macroscopic shape of such composite easily rendered its usage as catalyst support in a fixed-bed configuration without facing problems of transport and pressure drop as encountered with the bulk CNTs. | Yuefeng Liu Thierry Dintzer Ovidiu Ersen Cuong Pham-Huu | 2013 | Journal of Energy Chemistry2013，22，2： | 1 |
| 8 | A label correcting approach for solving bicriterion shortest-path problems显示文摘 | Skriver A J V Ersen K A | 2000 | Computers and Operations Research2000，27，： | 1 |
| 9 | Posterior spinal fusion in adolescent idiopathic scoliosis with or without intraoperative cell salvage system:a retrospective comparison显示文摘 | Ersen O Ekinci S Bilgic S | | 0，，： | 1 |
| 10 | Hip fractures in extremely old patients显示文摘 | Kapicioglu M Ersen A Saglam Y | 2014 | J Orthop2014，11，3： | 1 |
| 11 | Two-stage Estimation in Copula Models Used in Family Studies 显示文摘 | Elisabeth Wreford Ersen | 2003 | Lifetime Data Analysis2003，，11： | 1 |
| 12 | Effect of ion irradiation on the structural and magnetic properties of sputtered CoPt alloy 显示文摘 | Abes M Ersen O Muller D | 2003 | Materials Science and Engineering C2003，23，： | 1 |
| 13 | Effect of ion irradiation on the structural and magnetic properties of sputtered CoPt alloy 显示文摘 | Abes M Ersen O Muller D | 2003 | Materials Science and Engineering C2003，23，： | 1 |
| 14 | Applications of NMR in meat science显示文摘 | BERTRAM H C ERSEN H J | 2004 | Annual Reports on NMR Spectroscopy2004，53，： | 1 |
| 15 | Effect of malic and citric acid on the crystallization of gypsum investigated by coupled acoustic emission and electrical conductivity techniques显示文摘 | Ersen A Smith A Chotard T J | 2006 | Mater Sc2006，41，21： | 1 |
| 16 | No difference in the effects of clopidogrel and aspirin on inflammatory markers in patients with coronary heart disease显示文摘 | SOLHEIM S PETI'ERSEN A A ARNESEN H | 2006 | Thromb Haemost2006，96，5： | 1 |
| 17 | High yield graphene and few-layer graphene synthesis assisted by microwaves显示文摘 | Izabela Janowska Dominique Bégin Ovidiu Ersen Maria Simona Moldovan Kambiz Chizari Marc Jacques Ledoux Cuong Pham-Huu | 2011 | Physica E: Low-dimensional Systems and Nanostructures2011，，6： | 1 |
| 18 | Magnetic Anisotropy and Microstructure in Sputtered CoPt(110) Films显示文摘 | Ersen O Elkaim E | 2004 | Catalysis Today2004，89，： | 1 |
| 19 | VSCF transmission system operating under unbalanced AC conditions: analysis and control design 显示文摘 | Xu L Ersen B R Cartwright P | 2005 | IEEE Trans on Power Delivery2005，20，1： | 1 |
| 20 | Observation of fundamental dark spatial solitons in semiconductors using picosecond pulses显示文摘 | ALLAN G R SKINNER S R ERSEN D R | 1991 | Optics Letters1991，16，3： | 1 |
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