تحلیل طیف در مورد بررسی آثار فرهنگی به جا مانده از گذشته، بسامد و پسماند وقایع تاریخی است که وسیله ی آن آفرینش ذهنیت های جدید صورت می گیرد. همانند گفتمان میشل فوکو باعث تجسم عینیت بخشی گذشته گردد با فردی اجتماعی حاصل شود. ژان فرانسوا لیوتار نیز مطرح نمودن شرایط پسانوگرا بر این موضوع صحه گذارد. بسامد، دامنه ، تلفیق اعوجاج اختلال موارد مهم هستند. رمان وی (1963) اعلام قطعه 49 (1966) اثر تامس پینچن...

A complex deposition process of high-temperature superconducting (HTS) thin films and coated conductors is usually optimized by concentrating on the crystalline quality material, thus getting best possible critical temperature self-field properties. However, most HTS power applications that are based act at high magnetic fields, an alternative approach focusing formation optimal network columna...

Recent advances in memristive nanocrystal assemblies leverage controllable colloidal chemistry to induce a broad range of defect-mediated electrochemical reactions, switching phenomena, and modulate active parameters. The sample geometry virtually all resistive studies involves thin film layers comprising monomodal diameter nanocrystals. Here we explore the evolution bipolar threshold across hi...

We report microstructural design via control of BaZrO3 (BZO) defect density in high temperature superconducting (HTS) wires based on epitaxial YBa2Cu3O7-δ (YBCO) films to achieve the highest critical current density, Jc, at different fields, H. We find the occurrence of Jc(H) cross-over between the films with 1-4 vol% BZO, indicating that optimal BZO doping is strongly field-dependent. The matc...

We use first-principles density functional theory calculations to investigate the dielectric response of BaZrO3 based perovskites. In this study we have substituted Ca for Ba over a range of compositions to understand what causes the recently reported (Levin et al., J. Solid State Chem. 2003, 175, 170) nonmonotonic dielectric response of Ba1-xCa xZrO3 (BCZ). We show that in all compositions stu...

A centrality measure based on the time of first returns rather than the number of steps is developed and applied to finding proton traps and access points to proton highways in the doped perovskite oxides: AZr(0.875)D(0.125)O3, where A is Ba or Sr and the dopant D is Y or Al. The high centrality region near the dopant is wider in the SrZrO3 systems than the BaZrO3 systems. In the aluminum-doped...