Tài liệu Các Môn Đại Cương - Tài liệu, ebook, giáo trình, hướng dẫn

Fourier cosine-laplace generalized convolution inequalities and applications
Abstract. We introduce several weighted Lp(R+)-norm inequalities and integral transform related to the generalized convolution with a weight function for the Fourier cosine and Laplace transforms. Some applications of these inequalities to estimate the solutions of some partial differential equations are considered. We also obtained solutions of...
14 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 397 | Lượt tải: 0
Preliminary investigation of CO2 sequestration by Chlorella sorokiniana TH01 in single and sequential photobioreactors
Abstract: Increasing accumulation of CO2 in the atmosphere mainly caused by fossil fuels combustion of human activities have resulted in adverse global warming. Therefore, searching for treatment methods for effective utilization of CO2 have received a great attention worldwide. Among various methods (e.g., adsorption, absorption, storage, membr...
13 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 571 | Lượt tải: 0
Bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in Green Mussels (Perna viridis) from Cangio Area, Hochiminh city
Abstract: The bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in bivalves of the coastal estuary has been investigated since they are favorable seafood. In the present study, the distribution of PAHs was determined in the green mussels (Perna viridis) from Cangio area (Ho Chi Minh City). Global comparison showed a lower PAHs accumulat...
8 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 551 | Lượt tải: 0
Evaluation on the stability of amine-mesoporous silica adsorbents used for CO2 capture
Abstract: Amine-mesoporous silica has been considered as a promising CO2 adsorbent with high potential for the reduction of energy consumption and CO2 capture cost; however, its stability could greatly vary with synthetic method. In this study, adsorbents prepared by impregnating different amines including polyethylenimine (PEI) and 3-aminopropy...
8 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 505 | Lượt tải: 0
Anti-Microbial activities of two Platinum(II) complexes bearing ethyl eugenoxyacetate and synthesis, structure of [PtCl(ethyl eugenoxyacetate-1H)(morpholine)]
Abstract: Two organo-metallic complexes of platinum(II), [PtCl(Eteug-1H)(C9H7N)] (P1), [Pt(Eteug-1H)(OC9H6N)] (P2), have been experimented on anti-microbial activity for the first time. P1 has activity against L.fermentum and B.subtilis bacterias with the IC50 values of 165.05, 220.58 µg/mL, respectively, P2 exhibits higher cytotoxicity on B.sub...
8 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 451 | Lượt tải: 0
Study on the chemical composition, Biological activity and Physico-Chemical indicators of the weft-peel oil of Bac Giang oranges extracted by cold-pressing method
Abstract: The oil of Bac Giang orange weft peels were obtained by cold-pressing method and dried with Na2SO4. By using the GC-MS method, 33 components of the oil were estimated by comparing their retention times and molecular weights with the standards. In particular, there were 15 hydrocarbons such as monoterpenes: 53.51%, sesquiterpenes: 7.19%...
7 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 619 | Lượt tải: 0
Structural simulation of Mg2SiO4 under compression
Abstract: The microstructure in Mg2SiO4 glass under high compression is studied by molecular dynamic method. This work revealed the correlation between pair radial distribution functions (PRDF) of Si-Si pair and bond angle distribution (BAD) of Si-O-Si and focus on clarifying the split peak of Si-Si PRDF. Moreover, visualizing the bonds of Si-Si...
11 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 446 | Lượt tải: 0
Fabrication and characterization of CoFe2O4/CoFe2/SiO2 nanocomposite particles
Abstract: The CoFe2O4/CoFe2/SiO2 nanocomposite particles were synthesized using a sol- gel method and calcination in hydrogen. The magnetic properties and structure of nanocomposite particles calcinated at 600 oC and 900 oC in range of calcination time from 1 h to 4 h were investigated. The phase composition, surface morphology and magnetic prop...
8 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 482 | Lượt tải: 0
Study of supporting electrolytes of KCl-Acetate buffer - NH4Ac for simultaneous determination of Zn2+, Cd2+, Cu2+, Pb2+ in acid mine drainage in Mao Khe, Quang Ninh by anodic stripping voltammetry at hanging mercury-drop electrode
Abstract. The simultaneous determination of Zn2+, Cd2+, Cu2+, Pb2+ in acid mine drainage (AMD) by differential pulse-anodic stripping voltammetrics (DPASV) with high sensitivity, selectivity, and accuracy is difficult because of many influential factors in the waste-water. This paper presents the results of studying supporting electrolyte for si...
11 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 485 | Lượt tải: 0
Reality and measures for developing integrated teaching capacity of chemistry teachers in high school and chemistry teacher students
Abstract: Integrated teaching competence is one of the most important competencies teachers capacity adapting to the requirements of reforming the general education curriculum. Researching and application of an integrated teaching perspective has been interested by many educators and teachers to research and apply in teaching practice. However, ...
10 trang | Chia sẻ: thanhle95 | Ngày: 07/07/2021 | Lượt xem: 475 | Lượt tải: 0

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