A5090912462- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Nuclear Physics and Applications
- Advanced machining processes and optimization
- Cold Atom Physics and Bose-Einstein Condensates
- Nuclear physics research studies
- Engineering Technology and Methodologies
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Advanced materials and composites
- Quantum optics and atomic interactions
- Carbon Nanotubes in Composites
- Laser Design and Applications
- Magnetic confinement fusion research
- High-Energy Particle Collisions Research
- Electron and X-Ray Spectroscopy Techniques
- Head and Neck Surgical Oncology
- Dysphagia Assessment and Management
- Radiation Detection and Scintillator Technologies
- Tracheal and airway disorders
- Particle Accelerators and Free-Electron Lasers
- Injection Molding Process and Properties
- Reconstructive Surgery and Microvascular Techniques
Pomeranian Medical University
2005-2025
Jet Propulsion Laboratory
2004-2022
University of Szczecin
2017
Cracow University of Technology
2013-2016
Argonne National Laboratory
1991-2003
Northwestern University
1991
Ross School
1966
An internal-target technique was used to make the first measurements of tensor analyzing power ${\mathit{T}}_{20}$ electron-deuteron elastic scattering in four-momentum-transfer range 2--3 ${\mathrm{fm}}^{\mathrm{\ensuremath{-}}1}$. Polarized deuterium atoms were confined within a storage cell VEPP-3 electron ring Novosibirsk achieve total target thickness 3\ifmmode\times\else\texttimes\fi{}${10}^{12}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}2}$, 15 times greater than previously possible with...
In this work, we investigate the high temperature performance of mid-wavelength infrared InAsSb-AlAsSb nBn detectors with cut-off wavelengths near 4.5 μm. The quantum efficiency these devices is 35% without antireflection coatings and does not change in 77–325 K range, indicating potential for room operation. current generation shows an increase operational bias temperature, which attributed to a shift Fermi energy level absorber. Analysis device that can be further improved. dark stays...
The cutting of high hardness composite materials such as sintered carbides based on the cobalt is a challenge from technological point view. paper presents influence data (v c, f, p) and content in work piece (10, 15, 25 wt%) turning process WC-Co with polycrystalline diamond (PCD) tool. This study focuses main component force F c surface roughness, described by roughness parameter Ra. research plan, Taguchi method, variance analysis ANOVA were applied. Two types experimental model, which...
We have measured the differential cross section for two-body deuteron photodisintegration at ${\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}=90\ifmmode^\circ\else\textdegree\fi{}$ and photon energies between 0.8 1.6 GeV. At above \ensuremath{\simeq} 1.2 GeV, data appear to obey a simple scaling law predicted by constituent-counting rules assuming parton degrees of freedom nucleons. Agreement with model calculations based on meson exchange or "reduced nuclear amplitudes" is discussed.
Individuals with maxillofacial deformities are concerned not only their facial appearance but also experience dysfunctions of the stomatognathic system, including mastication, swallowing, speech, and breathing. These impairments may lead to negative psychological responses a reduced quality life. The aim this study was assess life analyse reported system in orthognathic patients prior surgical intervention. group (SG) comprised 63 scheduled for surgery. control (CG) consisted 70...
We describe a method to reliably pattern monolayers of iron nanoparticle (FeNP) colloids into submicron features for growth single-walled carbon nanotubes (SWNTs) by chemical vapor deposition. Our process results in very clean patterns that are readily imaged atomic force microscopy, which has allowed the observation size evolution before and after high-temperature nanotube growth. For our conditions, SWNTs grew only from nanoparticles smaller than ∼5 nm high. At high temperature 850 °C,...
The tensor analyzing power components T20 and T21 have been measured in elastic electron-deuteron scattering at the 2 GeV electron storage ring VEPP-3, Novosibirsk, a four-momentum transfer range from 8.4 to 21.6 fm(-2). A new polarized internal gas target with an intense cryogenic atomic beam source was used. data determine deuteron form factors G(C) G(Q) important of momentum where first node monopole charge factor is located. results are compared previous some theoretical predictions.
The differential cross section for the reaction H2(γ,p)n has been measured at several center-of-mass angles ranging from 50° to 143° photon energies between 0.8 and 1.8 GeV. experiment was performed SLAC-NPAS facility with use of 1.6 GeV/c spectrometer detect high energy protons produced by a bremsstrahlung beam directed liquid deuterium target. Contributions concurrent disintegration residual electron were determined measuring proton yield without Cu radiator. At not very far 90°,...
The analysis results of machining accuracy after the free form surface milling simulations (based on EN AW- 7075 alloys) for different strategies (Level Z, Radial, Square, Circular) are presented in work. Particular were performed using CAD/CAM Esprit software. obtained allowance is defined as a difference between theoretical work piece element (the designed CAD software) and machined simulation. two surfaces describes value roughness, which result tool shape mapping surface. Accuracy left...
Optical pumping of potassium atoms followed by spin-exchange scattering with deuterium in a high magnetic field was found to produce an intense, highly spin-polarized beam atomic deuterium. In particular, the polarization determined be (73\ifmmode\pm\else\textpm\fi{}3)% at intensity 2.1\ifmmode\times\else\texttimes\fi{}${10}^{17}$ atoms/s.
Pion absorption by $^{3}\mathrm{He}$ was studied at ${\mathit{T}}_{\mathrm{\ensuremath{\pi}}}$=165 MeV in a kinematically complete experiment. The cross section for on (pn) pair of nucleons, ${\mathrm{\ensuremath{\sigma}}}_{\mathit{p}\mathit{n}}$(${\mathrm{\ensuremath{\pi}}}^{+}$), found to be 17.0\ifmmode\pm\else\textpm\fi{}2.6 mb; that (pp) pair, ${\mathrm{\ensuremath{\sigma}}}_{\mathit{p}\mathit{p}}$(${\mathrm{\ensuremath{\pi}}}^{\mathrm{\ensuremath{-}}}$),...
The healing process of the fractured bone in a presence poly(butylene succinate-butylene dilinoleate) (PBS-DLA) copolymer containing nanosized hydroxyapatite (HAP) particles has been investigated. PBS-DLA material PBS hard segments and DLA soft (50:50 wt %) was used to prepare polymer/ceramic composite with 30 % HAP. A new showed high elasticity 500% 15 MPa tensile strength. Addition HAP improved strength up 25 while preserved going down only 300% elongation at break. polymer nanocomposite...
The paper presents the results of cutting forces research (Ff, Fp, Fc) when machining sintered carbides WC-Co (25% Co) with tools made polycrystalline diamond PCD. Inserts three different nose radii rɛ were used during study. Each test was carried out on distance 54 mm at constant depth cut 0.2 mm. biggest increase passive force component Fp indicated. In addition, mathematical models for value prediction as path increases are presented. also algorithm optimization and control super hard...
This paper describes the research results of surface quality after sintered carbides turning by tools with edges made polycrystalline diamonds (PCD). The trials were conducted for different nose radii and influence three independent parameters (<i>v</i><sub>c</sub>, <i>f</i>, <i>r</i><sub>epsilon</sub>) affecting roughness analyzed. impact binder material content Co (cobalt) on during process (according to values parameter Ra) is described further on. <i>v</i><sub>c</sub>,...
The paper presents research of turning super hard materials, like sintered carbides, with PCD (polycrystalline diamond) tools. Sintered carbides cobalt, as metal binder, good properties abrasion resistant in high temperature environment are used construction material. These produced by a powder metallurgy process, difficult-to-machine because their hardness and brittleness. In the work, special attention was paid on cutting force component F c surface finish, form roughness parameter Ra , at...
Perovskite solar cells (PSCs) are studied in low-intensity low-temperature (LILT) conditions before and after low energy proton irradiation to characterize device performance at deep space mission-relevant light intensities temperatures.
Pour contrôler la formation de couches d'épaisseurs optiques ne égales ou multiples d'une même valeur u0/4, on utilise couramment des méthodes optiques. Il est en particulier commode repérer, au cours l'évaporation, pour longueur d'onde centrage du filtre u0, les extremums facteur transmission T. Mais doit bien distinguer correspondant à T/ e=0 profil spectral (T/u=0) observables pendant le dépôt chaque couche. La simulation par calcul sur ordinateur permet montrer que l'influence erreurs...
The paper presents research of milling tool inclination angle δ influence (in relation to the cutting surface) on free surface roughness. Rotational tools with curved edges (ball nose cutter) performed translation movements spherical hardened steel work piece (hardness 50, 62 and 65 HRC). Milling diameter d =1 mm was made CBN. Roughness measurements were in different places Taylor Hobson profilometer.