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| 1 | 重费米子铁磁量子临界材料CeRh_(6)Ge_(4)中的局域化4f电子显示文摘研究表明,反铁磁量子相变广泛存在于不同的关联电子材料体系中,但铁磁量子相变一直缺乏确凿的实验证据.理论预言,纯净的巡游铁磁体系中不存在铁磁量子临界点.最近,人们在重费米子化合物CeRh_(6)Ge_(4)中发现了压力诱导的铁磁量子临界点,并且观察到奇异金属行为.通过45 T强磁场条件下的机械悬臂磁矩测量和隧道二极管共振测量等实验方法,本文报道了CeRh_(6)Ge_(4)中的量子振荡,进一步证实该铁磁量子临界点出现在纯净的铁磁材料体系中.为了获取CeRh_(6)Ge_(4)的费米面,还测量了量子振荡随磁场转角的演化,并且将实验所得的量子振荡频率与密度泛函能带计算进行了对比,发现CeRh_(6)Ge_(4)中的4f电子呈现出局域化的特征,不对费米面产生贡献.这些结果表明,局域铁磁性是产生铁磁量子临界点的一个关键因素. | 王安 杜锋 张勇军 David Graf 沈斌 陈晔 刘洋 Michael Smidman 曹超 Frank Steglich 袁辉球 | 2021 | Science Bulletin2021,66,14: | 2 |
| 2 | Silymarin Inhibits In Vitro T-Cell Proliferation and Cytokine Production in Hepatitis C Virus Infection显示文摘 | Chihiro Morishima Margaret C. Shuhart Chia C. Wang Denise M. Paschal Minjun C. Apodaca Yanze Liu Derek D. Sloan Tyler N. Graf Nicholas H. Oberlies David Y.–W. Lee Keith R. Jerome Stephen J. Polyak | 2010 | Gastroenterology2010,,2: | 1 |
| 3 | Pediatric hernias显示文摘 | Joy L Graf Michael G Caty David J Martin Philip L Glick | 2002 | Seminars in Ultrasound, CT, and MRI2002,,: | 1 |
| 4 | Multiple effects of silymarin on the hepatitis C virus lifecycle显示文摘 | Jessica Wagoner Amina Negash Olivia J. Kane Laura E. Martinez Yaakov Nahmias Nigel Bourne David M. Owen Joe Grove Claire Brimacombe Jane A. McKeating Eve‐Isabelle Pécheur Tyler N. Graf Nicholas H. Oberlies Volker Lohmann Feng Cao John E. Tavis Stephen J. | 2010 | Hepatology2010,,6: | 1 |
| 5 | Large-Scale Isolation of Flavonolignans from Silybum marianum Extract Affords New Minor Constituents and Preliminary Structure-Activity Relationships显示文摘 | Arlene Sy-Cordero Tyler Graf Yuka Nakanishi Mansukh Wani Rajesh Agarwal David Kroll Nicholas Oberlies | 2010 | Planta Med2010,,06: | 1 |
| 6 | Removal of dissolved organic carbon from surface water by anion exchange and adsorption: Bench-scale testing to simulate a two-stage countercurrent process显示文摘 | Katherine C. Graf David A. Cornwell Treavor H. Boyer | 2013 | Separation and Purification Technology2013,,: | 1 |
| 7 | Bilateral ultrastaging of sentinel lymph node in cervical cancer: Lowering the false-negative rate and improving the detection of micrometastasis显示文摘 | David Cibula Nadeem R. Abu-Rustum Ladislav Dusek Jiri Slama Michal Zikán Afra Zaal Libor Sevcik Gemma Kenter Denis Querleu Robert Jach Anne-Sophie Bats Grzegorz Dyduch Peter Graf Jaroslav Klat Chris J.L.M. Meijer Eliane Mery Rene Verheijen Ronald P. Zweem | 2012 | Gynecologic Oncology2012,,3: | 1 |
| 8 | Hydroprocessing and Blending of a Biomass-Based DTG-Gasoline显示文摘The number of annually registered internal-combustion vehicles still exceeds electric-driven ones in most regions,e.g.,Germany.Ambitious goals are disclosed with the European Green Deal,which calls for new technical approaches and greenhouse gas neutral transition technologies.Such bridging technologies are synthetic fuels for®the transportation sector,e.g.,using the bioliq process for a CO_(2)-neutral gasoline supply.Fuels must meet the applicable national standards to be used in existing engines.Petrochemical parameters can be variably adapted to their requirements by hydroprocessing.In this work,we considered the upgrading of aromatic-rich DTG®gasoline from the bioliq process.The heavy gasoline was therefore separated from the light one by rectification.We investigated how to selectively modify the petrochemical parameters of the heavy gasoline,especially the boiling characteristics,to make the product suitable as a high-quality blending component.Three commercially available Pt/zeolite catalysts were tested over a wide range of temperature and space velocity.We achieved high gasoline yields,while the content of light end compounds up to a boiling temperature of 150°C could be increased significantly.In contrast to the high naphthenic content of the gasoline,the obtained octane numbers were satisfactory.Especially the Motor Octane Number turned out unexpectedly high and showed a dependency on the isomerization of the naphthenic rings.By blending the upgraded heavy gasoline with the previously separated light gasoline,we could finally show that hydroprocessing is suitable for adjusting petrochemical parameters.The aromatic concentration was 37.5%lower than that in the original raw gasoline,while the boiling characteristics improved significantly.Additionally,the final boiling point was 82°C lower,which is beneficial for the emission behavior. | David Graf Philipp Neuner Reinhard Rauch | 2022 | Energy Engineering2022,119,6: | 0 |
| 9 | Achieving high union rates after first metatarsophalangeal joint arthrodesis:Radiographic outcomes and technical pitfalls显示文摘BACKGROUND Fusion of the first metatarsophalangeal(MTP1)joint is a common surgery performed to correct hallux rigidus,hallux rigidus et valgus and other painful degenerative diseases of the MTP1.AIM To assess outcomes of our surgical technique including non-union rates,accuracy and aims of correction.METHODS Between September 2011 and November 2020 a total 72 of MTP1 fusions were performed using a low profile,pre-contoured dorsal locking plate and a plantar compression screw.Union and revision rates were analyzed with a minimum clinical and radiological follow up of at least 3 mo(range 3-18 mo).The following parameters were evaluated on pre-and postoperative conventional radiographs:Intermetatarsal angle,Hallux-valgus angle,dorsal extension of the proximal phalanx(P1)in relation to the floor and the angle between the Metatarsal 1 and the P1(MT1-P1 angle).Descriptive statistical analysis was performed.Pearson analysis was used to assess for correlations between radiographic parameters and achievement of fusion.RESULTS An overall union rate of 98.6%(71/72)was achieved.Two out of 72 patients did not primarily fuse with one patient suffering from a non-union,whilst the other demonstrating a radiological delayed union without clinical symptoms,with eventually complete fusion after 18 mo.There was no correlation between the measured radiographic parameters and the achievement of fusion.We believe the reason for the non-union was mainly attributed to the patient’s incompliance without wearing the therapeutic shoe leading to a fracture of the P1.Furthermore,we didn`t find any correlation between fusion and the degree of correction.CONCLUSION With our surgical technique,high union rates(98%)can be achieved using a compression screw and a dorsal variable-angle locking plate to treat degenerative diseases of the MTP1. | Christian von Deimling Timo Tondelli Samuel Brunner Octavian Andronic Alexander David Graf | 2023 | World Journal of Orthopedics2023,14,6: | 0 |