Study of Heating Rate Effect on Thermoluminescence Glow Curves of LiF: Mg, Cu, PThis study demonstrates that, theCharacteristics of LiF:Mg,Cu,P have been improved by working conditions in our laboratory. It is shown that because of its good energy response, low fading in natural environmental conditions and extended range of linearity. It is a suitable material for medical and archaeological applications.TL materials LiF:Mg...
6 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 668 | Lượt tải: 0
Study of Long-Lived Heavy Charged Particles Produced in PP Collisions at Energy 13 TeVThe GPHE has worked successfully in choosing the new and interesting study subject concerning long-lived heavy charged particles produced in hadron collision at the TeV scale. Ten million longlived heavy charged particles which has mass 1.025 TeV/c2 and lifetime = 157.7 nanoseconds have been generated and about 3 % of them have been found in th...
4 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 743 | Lượt tải: 0
Đặc điểm kiến trúc - Cấu tạo và thành phần của ilmenit và magnetit trong lherzolit và gabbroit khối Suối Củn: dấu hiệu về điều kiện hình thành thể xâm nhậpAbstract: Modes of occurrences and geochemical characteristics of ilmenite and magnetite in the North Suoi Cun ultramafic rocks were studied to understand source, formation and evolution of magma chamber. The northern Suoi Cun ultramafic block consists of plagiolherzolite and olivine melano-gabbro. The Plagiolherzolite and olivine melano-gabbro ...
14 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 842 | Lượt tải: 0
First-Principles Calculations on Electronic Properties of LaNiO3 in Solid Oxide Fuel Cell CathodesFirst-principles calculations are employed to investigate the electronic structure of bulk LaNiO3 under epitaxial strain. By applying strain, the Ni t2g-derived states of the 1x1x1 unit cell become partially occupied. In the vicinity of the Fermi level, the density of the t2g-derived states increases with u xy while that of the eg-derived state...
5 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 736 | Lượt tải: 0
Optical Properties of PbS and Au-PbS Core-Shell NanoparticlesPbS and Au-PbS core-shell nanoparticles were successfully synthesized using the sonochemical method at room temperature. Due to the quantum confinement effect, the band gap energy of PbS solid nanoparticles of 41.6 ± 5.1 nm in size is significantly blue-shifted to 1.16 eV in comparison to that of the bulk PbS. For a thin spherical PbS shell of a...
6 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 712 | Lượt tải: 0
Characterization of Humidity Sensing of Polymeric GrapheneQuantum-Dots Composites Incorporated with Silver NanowiresThe synthesized graphene quantum dots (GQDs) and spin-coated composite thin films of GQDs, PEDOT:PSS and Ag nanowires (GPA) were prepared for characterization of humidity sensing. The composite resistance sensors were made from the GPA films with a simple structure of Ag/composite films/Ag; and these sensors responded well to the humidity change...
9 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 614 | Lượt tải: 0
Design and Simulation of Micromachined Gyroscope Based on Finite Element MethodIn this paper, we have succeeded in designing a new structure of a MEMS - based vibratory micromachining gyroscope which exploits the electronics and mechanical cosimulation using finite element method. The proposed structure has a resonance frequency of 13324 Hz and the sensitivity of 100 mV/rad/s. Our work can be applied to design and simulate...
12 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 657 | Lượt tải: 0
Influence of Confined Optical Phonons and Laser Radiation on the Radioelectric Effect in a Cylindrical Semiconductor Quantum Wire with Parabolic PotentialIn this work, the influence of confined optical phonons on the Radioelectric effect in a cylindrical semiconductor quantum wire with parabolic potential under the presence of a linearly polarized6 N.Q. Bau et al. / VNU Journal of Science: Mathematics – Physics, Vol. 33, No. 3 (2017) 1-6 electromagnetic wave and the laser radiation has been studie...
6 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 715 | Lượt tải: 0
Streaming Potential in Unconsolidated Samples Saturated with Monovalent ElectrolytesThe measurements of the streaming potential of four unconsolidated samples saturated with four monovalent electrolytes at different electrolyte concentrations have been performed. From the measured SPC, the empirical expression between the SPC and electrolyte concentration is obtained. The empirical expression is in good agreement with those rep...
11 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 705 | Lượt tải: 0
Enhancements of Critical Temperature in Bi-Pb-Sr-Ca-Cu-O SuperconductorsThe effects of sintering temperature and substitution on structural and superconducting properties of the BPSCCO samples were investigated. By increasing sintering temperature from 840 to 850 oC and substituting Na to Ca site, Tc.0 of the BPSCCO sample were found to enhanced. The enhancements were attributed to the formations of the Bi-2223 phas...
8 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 743 | Lượt tải: 0
