Materials Literature
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Polypropylene composites reinforced with jute fabrics (Hessian cloth) were fabricated by heat-press molding technique. Mechanical properties of the composites such as tensile strength, tensile modulus, bending strength, bending modulus and impact strength were measured with reference to fiber loading in polypropylene…
The synthesis of capped mesoporous silica nanoparticles (MSN) conjugated with an antibody (AB) as a gatekeeper has been carried out in order to obtain a delivery system able to release an entrapped cargo (dye) in the presence of a target molecule (antigen) to which the conjugated antibody binds selectively. In particu…
We report the synthesis of DO3A derivatives of 2,2'-diaminobiphenyl (1a,b) and their Gd complexes of the type [Gd(1)(H2O)]·xH2O (2a,b) for use as new MRI blood-pool contrast agents (BPCAs) that provide strong and prolonged vascular enhancement. Pharmacokinetic inertness of 2 compares well with that of structurally rel…
ABSTRACT This paper presents and discusses static (elastoviscoplastic and damage) and high‐cycle fatigue characterization of two microstructures of the Ti5553 alloy. The difference between these two microstructures is related to their heat treatment and precisely to the temperature of the final aging. For each microst…
The enthalpies of formation of synthetic MgSO 4 ·4H 2 O (starkeyite) and MgSO 4 ·3H 2 O were obtained by solution calorimetry at T =298.15 K. The resulting enthalpies of formation from the elements are \documentclass{aastex}\usepackage{amsbsy}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{bm}\usepackage{mathrsfs…
Since the discovery of the mesoporous silica material templated by ionic surfactants and the subsequent development of materials templated by non-ionic surfactants and polymers, for example SBA-15, there has been a continuous research effort towards understanding their formation. In situ methodologies, such as Small A…
Polyelectrolyte multilayers (PEMs) fabricated through layer-by-layer (LbL) assembly from sodium chloride-containing solutions of poly(diallyldimethylammonium chloride) (PDDA) and poly(styrene sulfonate) (PSS) were examined by quartz crystal microbalance (QCM), QCM with dissipation (QCM-D), UV–vis spectroscopy, and X-r…
Colloidal CdTe quantum wires are reported having ensemble photoluminescence efficiencies as high as 25% under low excitation-power densities. High photoluminescence efficiencies are achieved by formation of a monolayer CdS shell on the CdTe quantum wires. Like other semiconductor nanowires, the CdTe quantum wires may…
A novel design as well as a straight-forward synthesis for a photoswitchable guanidine catalyst is reported. Intense studies of the photochromic properties demonstrated the reversible switchability of its photosensitive azobenzene moiety. Its activity in the ring-opening polymerization (ROP) of rac-lactide was investi…
In this paper, the relationship between the surface structures of spin-coated fluorinated polymer films and their corresponding film-formation solution/air interface structures was investigated. Film-forming poly( n -alkyl methacrylate) end-capped with 2-perfluorooctylethyl methacrylate (FMA; PFMA y -ec-PnAMA x -ec-PF…
Gomuti fibre is obtained from Arenga pinnata tree and is known with other names such as sugar-palm fibre, gomutu, ijuk, serat aren and black fibre. This article presents a review on the physical, mechanical, chemical and thermal properties of gomuti fibre in comparison with other common natural fibres. Furthermore, th…
Three discrete organoantimony(III)-containing heteropolytungstates [(PhSb(III))(4)(A-α-Ge(IV)W(9)O(34))(2)](12-) (1), [(PhSb(III))(4)(A-α-P(V)W(9)O(34))(2)](10-) (2), and [{2-(Me(2)NCH(2)C(6)H(4))Sb(III)}(3)(B-α-As(III)W(9)O(33))](3-) (3) have been synthesized in one-pot reactions in aqueous medium using the appropria…
This article presents the mechanical properties of polyvinylchloride-coated fabrics with Precontraint® technology. First, groups of off-axial tests are carried out, and the corresponding strength criteria are discussed. Then, the biaxial tests are carried out on the material without initial loading and the material af…
The synthesis and crystal structure of a zirconocene derivative with α-Keggin mono-aluminum-substituted polyoxotungstate, [α-PW(11)Al(OH)O(39)ZrCp(2)](2)(6-) (Cp = C(5)H(5)(-)) (1), which was obtained by the reaction of α-Keggin mono-aluminum-substituted polyoxotungstate with a biscyclopentadienylzirconium(IV) complex…
Single crystals of Ba${}_{1\ensuremath{-}x}$Eu${}_{x}$Fe${}_{2}$As${}_{2}$ were studied by magnetic susceptibility, heat capacity, resistivity, and electron spin resonance (ESR) measurements. Spin-density wave (at ${T}_{\text{SDW}}$) and antiferromagnetic (at ${T}_{N}$) phase transitions were mapped as a function of $…
Using angle-resolved photoemission spectroscopy, we studied the evolution of electronic structure of NaFe${}_{1\ensuremath{-}x}$Co${}_{x}$As from an optimally doped superconducting compound ($x=0.028$) to a heavily overdoped nonsuperconducting one ($x=0.109$). As in ``122''-type iron pnictides, our data suggest that t…
The electronic and magnetic properties of polynuclear complexes, in particular the magnetic anisotropy (zero field splitting, ZFS), the leading term of the spin Hamiltonian (SH), are commonly analyzed in a global manner and no attempt is usually made to understand the various contributions to the anisotropy at the ato…
As one class of the most important supramolecular functional materials, gels formed by low molecular weight gelators (LMWGs) have many important applications. The key important parameters affecting the in-use performance of a gel are determined by the hierarchical fiber network structures. Fiber networks consisting of…
La${}_{0.7}$Ca${}_{0.3}$MnO${}_{3}$ optimally doped epitaxial films were grown on ferroelectric BaTiO${}_{3}$ substrates. Electronic transport (magnetoresistance and electroresistance) and magnetic properties showed important anomalies in the temperature interval between 60 and 150 K, below the metal-insulator transit…
We present the design and implementation of a beam-shifting slab (a transformation electromagnetics device) using tensor transmission-line metamaterials. A beam-shifting slab is an anisotropic, homogeneous and reflectionless slab which laterally displaces the electromagnetic field transmitted through it. The experimen…