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| 1 | Fabrication,microstructures,and optical properties of Yb:Lu_(2)O_(3) laser ceramics from co-precipitated nano-powders显示文摘The Yb:Lu_(2)O_(3)precursor made up of spherical particles was synthesized through the co-precipitation method in the water/ethanol solvent.The 5 at% Yb:Lu_(2)O_(3)powder is in the cubic phase after calcination at 1100℃ for 4 h.The powder also consists of spherical nanoparticles with the average particle and grain sizes of 96 and 49 nm,respectively.The average grain size of the pre-sintered ceramic sample is 526 nm and that of the sample by hot isostatic pressing grows to 612 nm.The 1.0 mm-thick sample has an in-line transmittance of 81.6%(theoretical value of 82.2%)at 1100 nm.The largest absorption cross-section at 976 nm is 0.96×1^(0-20)cm^(2) with the emission cross-section at 1033 nm of 0.92×10^(-20)cm^(2) and the gain cross sections are calculated with the smallest population inversion parameter β of 0.059.The highest slope efficiency of 68.7% with the optical efficiency of 65.1% is obtained at 1033.3 nm in quasi-continuous wave(QCW)pumping.In the case of continuous wave(CW)pumping,the highest slope efficiency is 61.0% with the optical efficiency of 54.1%.The obtained laser performance indicates that Yb:Lu_(2)O_(3)ceramics have excellent resistance to thermal load stresses,which shows great potential in high-power solid-state laser applications. | Ziyu LIU Guido TOCI Angela PIRRI Barbara PATRIZI Yagang FENG Jiabei WEI Feng WU Zhaoxiang YANG Matteo VANNINI Jiang LI | 2020 | Journal of Advanced Ceramics2020，9，6： | 4 |
| 2 | 共沉淀纳米粉体制备Yb:CaF2激光陶瓷及其性能研究(英文)显示文摘利用共沉淀法合成的粉体,通过真空烧结结合热压烧结后处理制备了掺镱的氟化钙透明陶瓷(Yb:CaF2)。在600℃预烧1 h,700℃热压烧结2 h制备的5at%Yb:CaF2透明陶瓷在1200 nm处的直线透射率达到92.0%。对陶瓷的显微结构、光谱特性和激光性能进行了测试和讨论。研究结果表明,陶瓷样品的显微结构均匀,平均晶粒尺寸为360 nm。此外,计算得到Yb:CaF2陶瓷在977nm处的吸收截面和1030nm处的发射截面分别为0.39×10–20和0.26×10–20cm2。最后,对Yb:CaF2陶瓷激光性能进行了表征,得到最大输出功率为0.9 W,最大斜率效率为23.6%。 | 韦家蓓 TOCI Guido PIRRI Angela PATRIZI Barbara 冯亚刚 VANNINI Matteo 李江 | 2019 | 无机材料学报2019，34，12： | 4 |
| 3 | 固体激光用Nd:Lu_(2)O_(3)透明陶瓷的制备和光学性能研究显示文摘Nd:Lu_(2)O_(3)材料由于具有高热导率、低声子能量和优异的光学特性而成为非常有前景的高功率固体激光器用的增益介质。但Lu_(2)O_(3)单晶的熔点超过2400℃,难以生长,而Lu_(2)O_(3)陶瓷既能在低温下制备,又具有与晶体相当的光学性质和激光性能从而备受关注。本研究制备了高透明的Nd:Lu_(2)O_(3)陶瓷并对其光学性质和激光性能进行探究。以共沉淀法制备的纳米粉体为原料,采用真空烧结结合热等静压(HIP)两步烧结法制备了1.0at%Nd:Lu_(2)O_(3)透明陶瓷。对制备的粉体、素坯和陶瓷的微结构进行了表征:HIP后处理的陶瓷平均晶粒尺寸是724.2nm。厚度为1.0mm的1.0at%Nd:Lu_(2)O_(3)透明陶瓷在1100 nm处的直线透过率是82.4%,样品在806 nm处的吸收截面为1.50×10^(-20)cm^(2),而根据荧光光谱计算得到的发射截面为6.5×10^(–20)cm^(2)。分别在878.8和895.6 nm波长激发下,1.0at%Nd:Lu_(2)O_(3)透明陶瓷(4)^F3/2→(4)^I11/2跃迁的平均荧光寿命均为169ms。当输出耦合镜的透过率TOC=2.0%时,退火后的1.0at%Nd:Lu_(2)O_(3)透明陶瓷获得了最大输出功率为0.47 W的准连续(QCW)激光输出,斜率效率为8.7%。本研究成功制备了显微结构均匀、高透明度的1.0at%Nd:Lu_(2)O_(3)陶瓷,并展示了其在固体激光增益介质领域的广阔应用潜力。 | 刘子玉 TOCI Guido PIRRI Angela PATRIZI Barbara 冯亚刚 陈肖朴 胡殿君 田丰 吴乐翔 VANNINI Matteo 李江 | 2021 | 无机材料学报2021，36，2： | 3 |
| 4 | Thiol-peptide level and proteomic changes in response to cadmium toxicity in Oryza sativa L. roots显示文摘 | Roberta Aina Massimo Labra Pietro Fumagalli Candida Vannini Milena Marsoni Ulisse Cucchi Marcella Bracale Sergio Sgorbati Sandra Citterio | 2006 | Environmental and Experimental Botany2006，，3： | 2 |
| 5 | Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV显示文摘The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy domain.As a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy tensor.For the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been constructed.The main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their correlations.Much emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear system.Dynamical evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport theories.Different approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy residues.Possible deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light IMFs.Further simulations are in progress.The experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having the largest IMF multiplicity. | FRANCALANZA L ABBONDANNO U AMORINI F BARLINI S BINI M BOUGAULT R BRUNO M CARDELLA G CASINI G AGOSTINO M D' De FILIPPO V De SANCTIS J GERACI E GIUSSANI A GRAMEGNA F GUIOT B KRAVCHUK V La GUIDARA E LANZALONE G Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAGANO A PAPA M PIANTELLI S PIRRONE S POLITI G POGGI G PORTO F RUSSOTTO P RIZZO F VANNINI G VANNUCCI L | 2013 | Nuclear Science and Techniques2013，24，5： | 2 |
| 6 | Cast vs external fixation:a comparative study in elderly osteoporotic distal radial fracture patients 显示文摘 | Moroni A Vannini F Faldini C | 2004 | Scand J Surg2004，93，： | 1 |
| 7 | Arabidopsis thaliana plants overexpressing thylakoidal ascorbate peroxidase show increased resistance to Paraquat induced photooxidative stress and to nitric oxide induced cell death显示文摘 | MURGIA I TARANTINO D VANNINI C | 2004 | Plant2004，38，6： | 1 |
| 8 | Influence of protein intake and muscle mass on survival in chronic dialysis patients显示文摘 | Antunes AA Delatim Vannini F de Arruda Silveira LV | 2010 | Ren Fail2010，32，9： | 1 |
| 9 | Short interfering Rna directed against the SLUG gene increases cell death induction in human melanoma cell lines exposed to cisplatin and fotemustin 显示文摘 | Vannini I Bonafe M Tesei A | 2007 | CellOncol2007，29，4： | 1 |
| 10 | Endothelial cell aging and apoptosis in prevention and disease: E - selectin expression and modulation as a model显示文摘 | Vannini N Pfeffer U Lorusso G | 2008 | Curr Pharm Des2008，14，3： | 1 |
| 11 | Nitrite inhibition and intermediates effects on Anammox bacteria: A batch -scale experimental study 显示文摘 | Bettazzi E Caffaz S Vannini C | 2010 | Process Biochemistry2010，45，4： | 1 |
| 12 | The ectopic expression of the rice Osmyb4 gene in Arabidopsis increases tolerance to abiotic,environmental and biotic stresses显示文摘 | Vannini C Iriti M Bracale M | 2006 | Physiological and Molecular Plant Pathology2006，69，13： | 1 |
| 13 | Labyrinth seal and pocket damper seal high pressure rotordynamic test data显示文摘 | Vannini G Cioncolini S Vescovo G D | 2014 | Journal of Engineering for Gas Turbines and Power2014，136，02： | 1 |
| 14 | Arabidopsis thaliana plants overexpressing thylakoidal ascorbate peroxidase show increased resistance to Paraquat-induced photooxidative stress and to nitric oxide-induced cell death显示文摘 | Murgia I Tarantino D Vannini C | 2004 | Plant Journal2004，38，6： | 1 |
| 15 | State of the art review : techniques to avoid pin loosening and infection in external fixation显示文摘 | Moroni A Vannini F Mosca M | 2002 | Orthop Trau- ma2002，16，3： | 1 |
| 16 | Analysis of Cytosine Methylation Pattern in Response to Water Deficit in Pea Root Tips显示文摘 | Labra M Ghiani A Citterio S Sgorbati S Sala F Vannini C RuffiniCastigllone M Braoale M | 2002 | Plant Biol2002，4，： | 1 |
| 17 | Cast VS external fixation: A comparative study in elderly osteoporotic distal radial fracture patients 显示文摘 | Moroni A Vannini F Faldini C | 2004 | Scand J Surg2004，93，1： | 1 |
| 18 | Associations between nutritional markers and inflammation in hemodialysis patients显示文摘 | VANNINI F D ANTUNES A A CARAMORI J C | 2009 | Int Urol Nephrol2009，41，4： | 1 |
| 19 | Arabidopsis thaliana plants overexpressing thylakoidal ascorbate peroxidase show increased resistance to Paraquat-induced photooxidative stress and to nitric oxide-induced cell death显示文摘 | Murgia I Tarantino D Vannini C | 2004 | Planta2004，38，6： | 1 |
| 20 | MicroRNAs: tiny playerswith a big role in the pathogenesis of leukemias andlymphomas 显示文摘 | Fanini F Vannini I Fabbri M | 2009 | Hematol Rev2009，1，1： | 1 |
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