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Structural and Optical Characterization of Indium Zinc Oxynitride Thin Films

材料科学与工程（中英文A版） 2014年第3期4卷 91-98页

作者： Jose Juan Ortega Sigala maria leticia perez arrieta Hugo TototzintleHuitle Miguel Angel Aguilar Frutis Ciro Falcony Victor Hugo Mendez Garcia Jose de Jesus Araiza Ibarra Academic Unit of Physics UAZ Zacatecas C.P. 98060 Me~xico CIACyT UASLP San Luis Potosl C.P. 78210 Mexico CICATA 1PN Mexico D.F. C.P. 11500 Mexieo Department of Physics CINVESTA V IPN Mexico D.F. C.P. 07360 Mexico

Indium zinc oxynitride (IZON) thin films were deposited on Si(100) substrates by RF reactive magnetron sputtering at different substrate temperature to study their structural and optical properties. All the films were deposited in a reactive atmosphere of nitrogen and argon. As precursor material, an IZO target (In 2 O 3 -ZnO, 90-10 wt%) with a purity of 99.99% was used. The crystalline structure of the films was analyzed by X-Ray diffraction technique (XRD), the deposited IZON thin films were practically amorphous with some polycrystalline contents for the films deposited at 100 °C and 300 °C. The refractive index and the extinction coefficient had been obtained from Spectral Ellipsometry (SE) analyses using the Classical and Adachi models, both results were qualitatively and quantitatively approximate. These optical results were analyzed and used to propose roughness values of the films surface, through of an appropriate proposal of the structure of the films. The roughness values obtained from optical models were compared with the morphological results studied by Atomic Force Microscopy (AFM), and the roughness values, obtained by direct and indirect measure, were consistent between them. The incorporated nitrogen reduced the typical crystallization of IZO and favored the deposition of transparent thin films with very flat surfaces, these results shows that the IZON has an ideal amorphous material for applications as conductive oxynitride layers.

关键词：氧化锌薄膜氧氮化物晶体结构光学特性 Si(100) 椭圆偏振光谱法薄膜沉积反应磁控溅射

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大陆集团总部

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现代装饰 2024年第3期 32-41页

作者： Arsen Aliverdiev(设计) Michael Bertram(设计) Kerstin El-Khawad(设计) Gunter Fleitz(设计) Eva perez Fons(设计) Lisa Holler(设计) leticia Hutchings(设计) Peter Ippolito(设计) Christiane Klinner(设计) Susann Kreplin(设计) Frank Lakmann(设计) Tim Lessmann(设计) Eleonora Mannisi(设计) Thomas Mura(设计) maria Cristina Orizzonte(设计) Jana Stumpe(设计) Bradley Wheeler(设计) Elisabed Zautashvili(设计) Werner Huthmacher(摄影) Ippolito Fleitz Group(摄影) 不详

“The Future in Motion”是大陆集团的座右铭,而大陆集团的品牌“Continental”则代表着面向未来、可持续发展和团结协作的理念。由于原集团总部的面积不再能满足公司的未来发展,大陆集团决定在德国汉诺威毗邻城市森林的位置新建一座... 详细信息

“The Future in Motion”是大陆集团的座右铭,而大陆集团的品牌“Continental”则代表着面向未来、可持续发展和团结协作的理念。由于原集团总部的面积不再能满足公司的未来发展,大陆集团决定在德国汉诺威毗邻城市森林的位置新建一座总部。新总部的设计以共享办公为概念,可为多达2400名员工提供工作场所。新楼经过五年建设,于2023年12月投入使用。

关键词：集团总部德国汉诺威可持续发展团结协作大陆座右铭

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Global longitudinal strain is superior to ejection fraction for detecting myocardial dysfunction in end-stage renal disease with hyperparathyroidism

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World Journal of Cardiology 2022年第4期14卷 239-249页

作者： maria Fernanda Carrasco-Ruiz Antonio Ruiz-Rivera Marvin A Soriano-Ursúa Carlos Martinez-Hernandez leticia Manuel-Apolinar Carmen Castillo-Hernandez Gustavo Guevara-Balcazar Eunice D Farfán-García Ana Mejia-Ruiz Ivan Rubio-Gayosso Teresa perez-Capistran Department of Physiology Escuela Superior de MedicinaInstituto Politécnico NacionalCiudad de México 11340Mexico Department of Cardiology Instituto Mexicano del Seguro SocialCiudad de México 06720Mexico Endocrine Research Unit Instituto Mexicano del Seguro SocialCiudad de México 06720Mexico Department of Cardiovascular Pharmacology Instituto Politécnico NacionalCiudad de México 11340Mexico Department of Biochemistry Escuela Superior de MedicinaInstituto Politécnico NacionalCiudad de México 11340Mexico Education Research Comisión Nacional Para la Mejora Continua de la EducaciónCiudad de México 03900Mexico Postgraduate Studies and Research Section Escuela Superior de MedicinaInstituto Politécnico NacionalCiudad de México 11340Mexico Department of Physiology Instituto Politécnico NacionalMexico City 11340Ciudad de MéxicoMexico

BACKGROUND The estimation of left ventricular ejection fraction(LVEF)by 2D echocardiography(2D-ECHO)is the most used tool to assess LV systolic function(LVSF).Global longitudinal strain(GLS)has recently been suggested as a superior method for several *** study explored the association and prevalence of LV systolic dysfunction(LVSD)by using these methods in patients with end-stage renal disease(ESRD)and severe hyperparathyroidism(SHPTH);both associated with cardiovascular events(CEs).AIM To evaluate the myocardial function in patients with ESRD and SHPTH by using the GLS and LVEF measured through conventional *** In 62 patients with ESRD and SHPTH,asymptomatic,and without a history of CEs,LVSF was evaluated by 2D-ECHO,obtaining the EF,by the Simpson biplane method,and GLS by speckle *** The total patients with ESRD had a preserved LVEF(>50%)but abnormal GLS(<13.55%).Additionally,multivariate analysis showed an independent association of GLS and serum parathyroid hormone(PTH),LV mass index,and ***,PTH was independently associated with lateral e'wave and tricuspid regurgitation *** In patients with SHPTH linked to ESRD,the use of GLS by 2D-ECHO is a more sensitive tool than LVEF for detecting LVSD.

关键词： Left ventricular hypertrophy Systolic dysfunction Global longitudinal strain End-stage renal disease Parathormone

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Synthesis and Characterization of a Polymeric Material Blended to Bone Forming Elements

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Journal of Biosciences and Medicines 2023年第9期11卷 181-194页

作者： Esther perez-Torrero leticia Esmeralda Luna-Rodriguez Gerardo Antonio Fonseca-Hernandez Jose Santos-Cruz Eric Mauricio Rivera-Muñoz maria Lucero Gomez-Herrera Facultad de Ingeniería Investigación y Posgrado Campus Aeropuerto Universidad Autónomade Querétaro México Centro de Física Aplicada y Tecnología Avanzada (CFATA) de la Universidad Nacional Autónoma de México Facultad de Química Investigación y Posgrado Campus Cerro de las Campanas UniversidadAutónoma de Querétaro México

A synthetizing material blended with two distinct proteins (collagen and casein) and mineral mixture, was developed in order to evaluate their properties suitable for possible applications in the biomedical such as inducing the regeneration of damaged bone, either due to an accident or illness. Samples were evaluated by 1) Mechanical properties tests under the bending, 2) Scanning electronic microscopy and 3) Infrared spectroscopy were carried out. The results showed that the developed material has breaking strength and structure characteristics associated with the protein used in their composition. This fact suggests that the used protein determines the resistance of the material, in such a way according to the required use, being able to choose appropriate strength and duration either short or long time. The material composition for specific use, in order to find the most suitable mixture for bone replacement, or induce bone recovery, according to the required properties similar to those of damaged living tissue.

关键词： Minerals Bone Polymethylmethacrylate Casein Collagen Mechanical Properties Infrared Scanning Electronic Microscopy

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