Modeling of discrete parabolic reflector made of sub-wavelength plasmonic wires
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Optoelectrical Properties and Back Contact Characteristic of VSe2 Thin Films
采用电子束蒸发法制备VSe 2 薄膜并进行退火处理, 通过XRD、SEM、透过谱、Hall效应、电导率–温度关系等表征了薄膜的结构、形貌、光学和电学性质, 用半导体特性测试仪研究了VSe 2 薄膜的背接触特性。结果表明: VSe 2 薄膜在一定的退火温度下结晶并呈稳定的六方相, VSe 2 薄膜为p型直接禁带跃迁材料, 光能隙约2.35 eV。将VSe 2 作为背接触层应用于CdTe多晶薄膜太阳电池, 消除了roll-over现象, 有效提高了器件性能。
A Mechanical Analysis of Polydicyclopentadiene with Metal Inserts Through Flexural Load
Polydicyclopentadiene (PDCPD) is being used in several products with particular success regarding to weight reduction and surface finish improvement. Despite the enough good mechanical properties presented by this thermosetting polymer, it needs to be adequately reinforced in applications requiring extra structural st…
Phase Behavior And Structure Properties Of Supported Lipid Monolayers And Bilayers In Interaction With Silica Nanoparticles
In this study we investigate silica nanoparticle (SiO2- NP) effects on the structure and phase properties of supported lipid monolayers and bilayers, coupling surface pressure measurements, fluorescence microscopy and atomic force microscopy. SiO2-NPs typically in size range of 10nm to 100 nm in diameter are tested. O…
Swelling Behavior And Cytotoxicity Of Maleic Acid Grafted Chitosan
Chitosan is an attractive polysaccharide obtained by deacetylation of an abundant natural biopolymer called chitin. Chitin and chitosan are excellent materials. To improve the potential of chitin and chitosan modification is needed. In the present study, grafting of maleic acid on to chitosan by cerium ammonium nitrat…
Biodegradable Polymersomes for the Delivery of Gemcitabine to Panc-1 Cells
Traditional anticancer chemotherapy often displays toxic side effects, poor bioavailability, and a low therapeutic index. Targeting and controlled release of a chemotherapeutic agent can increase drug bioavailability, mitigate undesirable side effects, and increase the therapeutic index. Here we report a polymersome-b…
Synthesis, characterization, and fluorescence properties of aniline‐g‐poly(styrene‐co‐maleic anhydride) and its lanthanide complexes
ABSTRACT Copolymers of aniline‐g‐poly(styrene‐co‐maleic anhydride) (AP/SMA) and its lanthanide(III) (Ln) ion complexes [Ln–AP/SMA (where Ln = La, Eu, Tb, or Yb)] were synthesized and characterized by elemental analysis, Fourier transform infrared spectroscopy, 1H‐NMR analysis, thermogravimetry–differential thermal ana…
Fabrication and characterization of novel tentacle-type adsorbent for resolution of chiral drugs
Novel tentacle-type chiral adsorbent based on silica gels modified with β -cyclodextrin ( β -CD) and polyvinyl alcohol(PVA) is synthesized by surface grafting technique. The adsorption behavior of chiral pharmaceuticals using the resulting adsorbents is investigated. In the study, FT-IR and thermogravimetric analysis…
Material Selection of Thermoplastic Matrix for Hybrid Natural Fiber/Glass Fiber Polymer Composites Using Analytic Hierarchy Process Method
In this paper, Analytic Hierarchy Process (AHP) method was applied in the selection of the most suitable thermoplastic polymer matrix for hybrid natural fiber/ glass fiber polymer composites application. The hybrid polymer composites will later be applied for the construction of automotive parking brake lever componen…
Fitoplancton de una laguna endorreica de uso recreacional (Córdoba, Argentina)
La Laguna de Suco se encuentra ubicada en la region sur de laprovincia de Cordoba, dominio Chaco-Pampeano, esta afectadapor un gran impacto antropico. El objetivo del presente estudio fueconocer y comparar la composicion y distribucion fitoplanctonica alo largo de un ciclo anual y su relacion con parametros abioticos…
Modeling of the atom transfer radical polymerization for preparing novel fluorosilicone diblock copolymers in a semi‐batch reactor
ABSTRACT To investigate the process for the preparation of well‐defined poly‐dimethylsiloxane‐b−2,2,3,3,4,4,4‐heptafluorobutylmetharylate block copolymers via a macroinitiator initiated atom transfer radical polymerization (ATRP), a model for the batch and semi‐batch ATRP process was presented based on the method of m…
Structural Diversity and Magnetic Properties of Five Cu(ii) Complexes with Mixed Naphthalene-Based Dicarboxyl Tecton and Different N-Donor Co-Ligands
Five new Cu(ii) complexes have been prepared by employing 2,3-naphthalenedicarboxylic acid (H2ndc) and different N-donor co-ligands, namely, [Cu(ndc)(H2O)]n (1), [Cu(ndc)(H2O)2]n (2), {[Cu1.5(ndc)(OH)(H2O)2]·2.5H2O}n (3), {[Cu(ndc)(phen)(H2O)]·CH3OH}n (4) (phen = 1,10-phenanthroline), and {[Cu2(H0.5ndc)2(4bpy)3](ClO4)…
Perancangan dan Pembuatan Dapur Peleburan Logam dengan Menggunakan Bahan Bakar Gas (LPG)
Foundry industry is very important in the development of both machinery and household products. Furnace is important utility in producing a product. Available furnaces in the market are very costly and difficult to obtain due to be imported from abroad. Responding these issues, in this study is designed and developed…
Minor‐phase particles evolution in a polyethylene/ethylene–propylene copolymer (80/20) blend across mixing: Breakup and coalescence
ABSTRACT On the basis of an online sampling microscopy method, the morphological evolution of a metallocene polyethylene/metallocene ethylene–propylene copolymer system (80/20 vol %) across various mixing regimes was investigated and treated statistically. The size distributions of the minor‐phase metallocene ethylene…
Plasmon point spread functions: How do we model plasmon-mediated emission processes?
A major challenge with studying plasmon-mediated emission events is the small size of plasmonic nanoparticles relative to the wavelength of light. Objects smaller than roughly half the wavelength of light will appear as diffraction-limited spots in far-field optical images, presenting a significant experimental challe…
Conditional Probabilities of Activity Landscape Features for Individual Compounds
Activity landscape representations aid in the analysis of structure-activity relationships (SARs) of large compound data sets. Landscapes are characterized by features with different SAR information content such as, for example, regions formed by structurally diverse compounds having similar activity or, alternatively…
Piezoelectric material selection for ultrasonic transducer and actuator applications
Multi attribute decision making approaches are used to screen and rank selected materials for piezoelectric applications including ultrasonic transducers and actuators. We have investigated two separate multi attribute decision making techniques namely the technique for order preference by similarity to ideal solution…
Four‐component relativistic chemical shift calculations of halogenated organic compounds
The calculation of nuclear magnetic resonance (NMR) properties of organic compounds with heavy elements has been a computational challenge due to the importance of relativistic effects and the cost of relativistic calculations capable of capturing these effects. The heavy‐atom effect on the chemical shift of light ato…
Comparison of active and passive methods for radon exhalation from a high-exposure building material
The radon exhalation rates and radon concentrations in granite stones used in Iran were measured by means of a high-resolution high purity Germanium gamma-spectroscopy system (passive method) and an AlphaGUARD model PQ 2000 (active method). For standard rooms (4.0 × 5.0 m area × 2.8 height) where ground and walls have…
Quadruply Hydrogen Bonding Modules-Versatile Building Blocks for Polymeric Material Design-Beyond Entanglements
Hydrogen bonding facilitated self-assembly is an appealing strategy for constructing advanced molecular architecture. Arrays of quadruply hydrogen-bonding (QHB) modules are especially appealing due to the reason that it features extremely strong yet reversible and dynamic interactions. This review focus on the design…