Gated X-Ray Camera Microchannel Plate Gain Droop Investigation
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SRNL Development of Recovery Processes for Mark-18A Heavy Actinide Targets
Savannah River National Laboratory (SRNL) and Oak Ridge National Laboratory (ORNL) are developing plans for the recovery of rare and unique isotopes contained within heavy-actinide target assemblies, specifically the Mark-18A. Mark-18A assemblies were irradiated in Savannah River Site (SRS) reactors in the 1970s under…
[Comparison of pedicled and scheltoned endoscopic methods harvesting saphenous vein in shank].
OBJECTIVE: To compare the efficacies of endoscopic harvesting saphenous vein as sequential graft by pedicled and scheltoned technique. METHODS: From June 2013 to December 2013, a total of 93 patients undergoing coronary artery bypass with endoscopic vein harvesting in shank were recruited. Saphenous veins were harvest…
Fiftieth Anniversary of the Cambridge Structural Database and Thirty Years of Its Use in Croatia
In the last three years there have been held brilliant, centennial jubilees related to X-ray crystallography. In 1912, Max von Laue announced diffraction of X-rays on a crystal and his discovery marked the birth of a new discipline -X-ray crystallography. The Nobel Prize was awarded for Laue's discovery in 1914 and on…
Upconversion Effects in Resonantly Pumped Er3+ and Pr3+ Doped Low Phonon-Energy Crystals for Eye-Safe Laser Applications
Abstract : In this work, cw and pulsed a 1532 and a 1440 nm laser excitation of the 4I13/2 band of Er3+ and 3F3,3F4 band of Pr3+ was explored in low phonon-energy hosts KPb2Cl5 and KPb2Br5. Crystal growth along with upconversion and eye-safe emission (approximately 1.5-1.6 m) studies were conducted on both Er3+ and Pr…
Reversible Transition between Superoleophobic and Superoleophilic States on Titania Coated Substrates by UV Irradiation
We demonstrate that tunable superoleophobic surfaces fabricated by a simple spin and spray coating methods of titania on silicon (Si) wafers and stainless steel (SS) mesh, which possess a hierarchical re-entrant structure consisting of nano meter sized particles on top of micron sized particle, are able to induce supe…
Otimização de substrato de cultivo e características morfoanatômicas de Drosera spathulata
As Droseraceaeas são uma família de plantas carnívoras, características de solos pobres em nutrientes, úmidos e depauperados, com adaptações que capturam presas, absorvem seus metabólitos e os utilizam em seu crescimento e desenvolvimento. As folhas são revestidas, na face adaxial, por estruturas que produzem uma subs…
An experimental model to mimic the mechanical behavior of a scaffold in a cartilage defect
[EN] Abstract The main purpose of this thesis is the design and characterization of an experimental articular cartilage model. The in vitro model is composed of a macro and micro- porous Polycaprolactone scaffold with a Poly(Vinyl Alcohol) filling. The scaffold/hydrogel construct has been subjected to repeating number…
PENGARUH SHORT-TIME SOLUTION TREATMENT AND AGING TERHADAP STRUKTUR MIKRO DAN KEKERASAN PADUAN TITANIUM TI-6Al-4V UNTUK APLIKASI IMPLAN BIOMEDIS
Penelitian ini dilakukan untuk memeriksa pengaruh dari short-time solution treatment dan short-time aging terhadap struktur mikro dan kekerasan paduan titanium Ti-6Al-4V. Tujuan dari penelitian ini adalah untuk mendapatkan biomaterial paduan Ti-6Al-4V yang kompatibel untuk penggunaan implan biomedis. Proses perlakuan…
Dynamical Crossover in Supercritical Core-Softened Fluids
It is well known that some liquids can demonstrate anomalous behavior. Interestingly, this be- havior can be qualitatively reproduced with simple core-softened isotropic pair-potential systems. Although anomalous properties of liquids usually take place at low and moderate temperatures it was recently recognized that…
APPLICATION OF EPOXY RESIN COMPOSITE WITH FIBER IMPERATA CYLINDRICA FOR MULTI PURPOSE VAN CAR BUMPER
Penelitian ini bertujuan menganalisis degan menggunakan metode statistik SPSS dengan aplikasi regresi dan Varian Anova, dimana spesimen dibuat dari serat alang-alang ( Imperata cylindrica ) dan resin epoksi dengan perbandingan komposi 60:40%,65:35%, dan 70:30%, dan ditambah pengeras hardener 4% . Dapat disimpulkan bah…
An acoustic invisible gateway
The recently-emerged concept of "invisible gateway" with the extraordinary capability to block the waves but allow the passage of other entities has attracted great attentions due to the general interests in illusion devices. However, the possibility to realize such a fascinating phenomenon for acoustic waves has not…
Derivation of generalized Young’s Equation for the Wetting Phenomena of Cylindrical Droplets
The contact angles of cylindrical droplets on smooth and chemically homogeneous nondeformable substrates were studied by methods of thermodynamics. The total grand potential of the system was calculated. Then, a generalized Young's equation for wetting of cylindrical droplets on chemically homogeneous and smooth subst…
Φασματοσκοπική μελέτη μη γραμμικών ιδιοτήτων νέων οργανικών μορίων μέσω διφωτονικά διεγερμένου φθορισμού
Two–photon absorption was one of the first nonlinear optical phenomena to be experimentally observed, shortly after the advent of intense pulsed laser sources. It is based on the excitation of an atom or molecule from a lower electronic state to an excited state with the simultaneous absorption of two light quanta. Tw…
Graphene fish-scale array as controllable reflecting photonic structure
We report resonant features of novel controllable reflectarray which consists of meander-like graphene strips placed on a metal-backed dielectric substrate. The structure manifests two kinds of resonances appeared as sharp deeps of reflectivity. The first one exists because the strips of periodic cells of the structur…
Ion irradiation effects on a magnetic Si/Ni/Si trilayer and lateral magnetic-nonmagnetic multistrip patterning by focused ion beam
Fabrication of a multistrip magnetic/nonmagnetic structure in a thin sandwiched Ni layer [Si(5 nm)/Ni(10 nm)/Si] by a focused ion beam (FIB) irradiation has been attempted. A control experiment was initially performed by irradiation with a standard 30 keV Ga ion beam at various fluences. Analyses were carried out by R…
Emergent Mott Insulators and Possibility of High Tc Superconductivity in Pressurized Molecular Solids, H2S, SiH4, H2 etc
Paired valence electrons forming covalent bonds in molecues are confined cooper pair correlations. High pressure dissociates molecules in solid H2S, SiH4, H2 etc. and form extended structures. However, valence electrons are resilient and continue to bond and sometimes resonate. It is suggested that some structures con…
First-principles study of the atomic structure and edge state of zigzag carbon nanoscrolls
The atomic structure and edge state of zigzag carbon nanoscrolls (ZCNSs) are investigated using first-principles calculations based on density functional theory. The results show a non-monotonic dependence of the total energy of ZCNS on the surface curvature due to a competition between the elasticity and the van der…
Simulation Trajectories For The Article "Molecular Conformation And Bilayer Pores In A Nonionic Surfactant Lamellar Phase Studies With 13C-1H Solid-State Nmr And Molecular Dynamics Simulations"
Simulation trajectories for the article "Molecular conformation and bilayer pores in a nonionic surfactant lamellar phase studies with 1H-13C solid-state NMR and molecular dynamics simulations" Langmuir 2014, 30 (2), pp 461–469 http://dx.doi.org/10.1021/la404684r System: 80 wt% C12E5, T=298K Other files available: htt…
Identification of damage mechanisms in CFRP composites by coupling acoustic emission and infrared thermography
To study the mechanical behavior of CFRP composites, two methods of damage monitoring are coupled: the acoustic emission (AE) and the infrared thermography (IT). Several studies on the coupling of these two techniques have shown, for example, that it is possible to determine the fatigue strength of ceramic matrix comp…