Materials Literature
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Closing the zipper: A method for the bottom-up organic synthesis of defect-free graphene nanoribbons in solution has been developed. Polyphenylene precursors with a unique kinked backbone enabled full cyclodehydrogenation in a single reaction step by an intramolecular Scholl reaction with FeCl3 (see scheme).
It is known that ab initio molecular dynamics (AIMD) simulations of liquid water at ambient conditions, based on the generalized gradient approximation (GGA) to density functional theory (DFT), with commonly used functionals fail to produce structural and diffusive properties in reasonable agreement with experiment. T…
Ferrimagnetic Mn${}_{3}$Ga exhibits a unique combination of low saturation magnetization (${M}_{s}=0.11$ MA m${}^{\ensuremath{-}1}$) and high perpendicular anisotropy with a uniaxial anisotropy constant of ${K}_{\mathrm{u}}$ $=$ 0.89 MJ m${}^{\ensuremath{-}3}$. Epitaxial $c$-axis films exhibit spin polarization as hig…
Electrogenerated chemiluminescence (ECL) emission was observed from the water-soluble, bovine serum albumin (BSA)-stabilized Au nanoclusters for the first time. The possible ECL mechanism was discussed according to the presented results and ascribed to the effective electron transfer from the conduction-band of excite…
The optimal size of spherical silver nanoparticles (AgNPs) for off-resonance surface-enhanced Raman scattering (SERS) was found to be ∼50 nm based on the equivalent Ag content in AgNP colloids. It is understood that the SERS intensity of adsorbates on the surface of metal nanoparticles is dependent on the size and sha…
A host–guest recognition motif based on a crown ether moiety was employed to construct a supramolecular polymer gel from a low molecular weight A–B monomer. Reversible thermo- and pH-induced gel–sol transitions of the dual-responsive gel are demonstrated for the controlled release of rhodamine B.
Abstract: U ovom radu prezentovana je primena novih tehnologija u cilju poboljšanja eksploatacionih svojstava klipova SUS motora izrađenih od aluminijumskih legura. Savremeni razvoj SUS motora, posebno u slučaju sportskih automobila, nameće potrebu za postizanjem maksimalne snage, što pak ekstremno povećava opterećenj…
In accordance with the U.S. Department of Energy (DOE) requirements in DOE O 435.1 Chg 1, Radioactive Waste Management, and implemented by DOE/RL-2000-29, Maintenance Plan for the Composite Analysis of the Hanford Site, Southeast Washington, the DOE Richland Operations Office (DOE-RL), also known as RL, has prepared t…
Green and non-harsh sol-gel methods such as one-pot aqueous procedures at near room temperature/ pressure and at near-neutral/neutral pH conditions were employed. Biomimetic catalysts are non-toxic and widely available biomolecules and, due to their different pH character in water solutions, they were employed alone o…
An annual summary on the adequacy of the Hanford Imnmobilized Low-Activity Waste (RLAW) Performance Assessment (PA) is required for each year in which a PA is not issued (DOE 0 435.1, Radioactive Waste Management; DOE M 435.1-1, Radioactive Waste Management Manual; DOE/ORP-2000-0 1, Maintenance Plan For The Hanford Im…
This PDF file contains the front matter associated with SPIE Proceedings Volume 7868, including the Title Page, Copyright information, Table of Contents, Introduction, and the Conference Committee listing.
ABSTRACT: Conventional methods to load drugs into commercial Soft Contact Lenses (SCLs) such as soaking and sorption in concentrated drug solutions are usually inefficient and mostly limited to highly water-soluble drugs. Molecular imprinting methods involve the synthesis of polymeric networks having high affinity and…
The capacity of glassy carbon in aprotic salt solutions in propylene carbonate (PC) is investigated as an approach to the optimalisation of electrochemical supercapacitors. The strong influence of water residuum on capacities at negative potentials is indicated. The capacities exhibit a shallow minimum at potential fr…
I LBL··32940 UC-413 ITi1 Lawrence Berkeley Laboratory a UNIVERSITY OF CALIFORNIA Accelerator & Fusion Research Division Presented at the Workshop on the Production and Use of Intense Radioactive Beams at the IsoSpin Laboratory, Oak Ridge, TN, October 7-10, 1992, and to be published in the Proceedings MagneH~ Ring for…
O n a vu dans le premier livre, que les fluides élastiques, tels que l'air, sont dus à la chaleur; et que les fluides incompressibles, tels que l'eau, sont dus à la pression et à la chaleur. Mais pour déterminer les loix de leur équilibre, nous n'avons besoin que de les eonsidérer comme étant formés d'un nombre infini…
Although the application of IMS in the medical field is recent, its efficiency in the diagnosis and detection of several pathologies has been proved in a number of studies. Diseases like lung cancer, sarcoidosis, pneumonie and Chronic Obstructive Pulmonary Disease (COPD) were successfully detected/ diagnosed using ion…
ABSTRACT: Wound dressings are usually applied with the objective of accelerating wound healing by preventing bacterial infection and accelerating tissue regeneration. The main goals of wound care are prevention of infection and/or inflammation, maintenance of a moist environment, protection of the wound with minimum s…
PT Swadaya Graha merupakan perusahaan dalam bidang konstruksi. Pengelasan sambungan T-joint banyak digunakan dalam bidang konstruksi. Standar pengelasan yang digunakan yaitu standar AWS (American Welding Society, Inc), dimana pemanasan awal harus dilakukan untuk melambatkan pendinginan dan mencegah terjadinya cacat re…
Die physikalisch-chemischen Eigenschaften von polykristallinen Materialien unterscheiden sich deutlich von den Eigenschaften ihrer einkristallinen Äquivalente – dies kann im Wesent-lichen auf Korngrenzen zurückgeführt werden. Die Beeinflussung von Prozessen durch die Anwesenheit von Korngrenzen ist abhängig von den st…
This work has dealt with the synthesis and characterization of transition metal complexes with two types of sulphur based ligands: 1,2 dithiolato ligands and thiol-carboxylate ligands. The electronic features related to the metal-sulphur interaction, such as the rich redox behaviour associated to the interplay between…