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Ilija Lukačević 《General Relativity and Gravitation》1983,15(6):523-533
Two vector fields are considered, a timelike one,u
, and an arbitrary one, . The relative expansion and rotation are defined with respect to these fields, their mutual relations are studied, and some general formulas obtained. Applications are made, first to vector fields which are mutually nonrotating in a plane-symmetric metric, then to the electromagnetic field of an arbitrary magnetohydrodynamic fluid. 相似文献
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Vesna Radulovi? Alessia Bacchi Giancarlo Pelizzi Du?an Sladi? Ilija Br?eski Katarina Andjelkovi? 《Monatshefte für Chemie / Chemical Monthly》2006,23(3):681-691
Complexes of Pt(II), Pd(II), and Ni(II) with the condensation derivative of 2-(diphenylphosphino)benzaldehyde and semioxamazide
were synthesized, characterized, and their antimicrobial activity was evaluated. The ligand and the complexes were characterized
by spectroscopic methods with the particular accent on NMR spectral analysis. For the palladium(II) complex, the crystal structure
was determined by X-ray analysis. In all the complexes the ligand is coordinated as a tridentate via a P, N, O donor set. The Pd(II) and Pt(II) complexes have a square planar geometry, whereas the geometry of the Ni(II) complex
is tetrahedral. The ligand showed antibacterial and antifungal activity, which was enhanced upon complexation. 相似文献
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In this paper, using nature as inspiration, micro robot is designed. Utilizing the basic principles of the biological systems motion and modern software tools Matlab Simulink and SolidWorks a mathematical analysis and simulation of its mechanism for movement are developed. It will be shown that the Bionics along with use of modern software can be a powerful engineering tool. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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Ćilerdžić Jasmina Galić Milica Ivanović Žarko Brčeski Ilija Vukojević Jelena Stajić Mirjana 《Applied biochemistry and biotechnology》2019,187(4):1371-1383
Applied Biochemistry and Biotechnology - Biological pretreatment of the lignocellulosic residues, in which white-rot fungi have a crucial role, has many advantages compared to the chemical,... 相似文献
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Dejan Jeremi Goran N. Kaluderovi Santiago Gmez‐Ruiz Ilija Br
eski Katarina K. Andelkovi 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(4):m143-m145
The structure of the title compound, [Ca(C10H15O4S)2(H2O)4], is the first example in which two d ‐camphor‐10‐sulfonate anions are coordinated to a metal ion, in this case with direct Ca—O bonding. The molecule has crystallographically imposed twofold symmetry with the Ca atom on the twofold axis. Hydrogen bonds are formed between the coordinated water molecules and the O atoms of the SO3− groups of adjacent molecules, leading to the formation of a two‐dimensional layered network. The compound displays sharp wavelength‐selective transparency in the UV–visible spectrum, offering the potential for application as an optical filter. 相似文献
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Genotyping from saliva with a one-step microdevice 总被引:1,自引:0,他引:1
This paper presents a disposable microfluidic device for on-chip lysing, PCR, and analysis in one continuous-flow process. Male-female sex determination was performed with human saliva in less than 20 min from spit to finish, and requiring only seconds of manual sample handling. This genetic analysis was based on the amplification and detection of the DYZ1 repeat region unique to the Y-chromosome. The flow-through microfluidic chip consisted of a single serpentine channel designed to guide samples through 42 heating and cooling cycles. Cycling was performed by matching the local channel geometry to a steady-state temperature gradient established across the microfluidic chip. 38 channel segments were designed for rapid low volume PCR, and four were optimized for spatial DNA melting analysis. Fluorescence detection was used to monitor the amplification and to capture the melting signature of the amplicon was performed with a basic 8-bit CCD camera. The microfluidic device itself was fabricated from microscope slides and a double-sided tape. The simplicity of the system and its robust performance combine in an elegant solution for lab-on-a-chip genetic analysis. 相似文献