gallium colloids prepared: Topics by WorldWideScience.org

Preparation of colloidal silver nanoparticles in poly(N-vinylpyrrolidone) by ?-irradiation

No abstract prepared.

2004-01-01

2

Experimental and numerical study of colloid transport in a single fracture.

Not Available

2008-09-01

3

Comment on ''Trace Metal Levels in Uncontaminated Groundwater of a Coastal Watershed: Importance of Colloidal Forms''

No abstract prepared.

2005-02-01

4

Determination of radiochemical purity and pharmacokinetic parameters of sup(99m)Tc-sulphur colloid and sup(99m)Tc-tin colloid

No abstract prepared.

2003-01-01

5

NONLINEAR OPTICAL PHENOMENA: Nonlinear optical properties of colloidal silver nanoparticles produced by laser ablation in liquids

Labelling yield and radiochemical purity, higher than 95%, of sup(99m)Tc-colloid preparations were determined by using the paper chromatography method. Less than 3% of labelled citric acid, added to the preparation as a buffer solution, has been found in sup(99m)Tc-sulphur colloid. High radiochemical purity and optimum size of colloid particles has also been proved by biodistribution studies on experimental animals. The analysis performed has shown that more than 50% of sup(99m)Tc-colloid preparations excreted by urine is sup(99m)TcO/sup -/, the remaining past 50% being protein bound sup(99m)Tc. Biological half-time of excretion of the fast phase is the same for both preparations, i.e. 10 min, while for the slow component it is 120 min in sup(99m)Tc-S-colloid and 160 min in sup(99m)Tc-Sn ...

1981-12-01

6

Effect of Gallium Focused Ion Beam Milling on Preparation of Aluminum Thin Foils

The optical and nonlinear optical properties of colloidal solutions of silver obtained by laser ablation in water and ethanol are studied. It is shown that freshly prepared colloids experience a full or partial sedimentation by changing their nonlinear optical properties. Aqueous colloids undergo a partial sedimentation and their nonlinear optical absorption changes to nonlinear optical transmission. The obtained results are interpreted using the Drude model for metal particles taking the particle size into account and can be explained by the sedimentation of larger silver particles accompanied by the formation of a stable colloid containing silver nanoparticles with a tentatively silver oxide shell. The characteristic size of particles forming such a stable colloid is determined and its optical nonlinearity is estimated.

2004-07-01

7

Fabrication of colloidal crystals on hydrophilic/hydrophobic surface by spin-coating

Focus Ion Beam (FIB) milling has greatly extended the utility of atom probe and TEM because it enables sample preparation with a level of dimensional control never before possible. Using FIB it is possible to extract the samples from desired and very specific locations. The artifacts associated with this sample preparation method must also be fully understood. In this work issues specifically relevant to the FIB milling of aluminum alloys are presented. After using the FIB as a sample preparation technique it is evident that gallium will concentrate in three areas of the sample: on the surface, on grain boundaries and at interphase boundaries. This work also shows that low energy Ar ion nanomilling is potentially quite effective for removing gallium implantation layers and gallium from the internal surfaces of aluminum thin foils.

2010-03-01

8

British Library Electronic Table of Contents (United Kingdom)

Herein, we demonstrate the structure of the PS colloidal crystals which were fabricated on the hydrophilic/hydrophobic Si wafers by a spin-coating technique. Monodisperse PS colloids are spin-coated onto self-assembled monolayers of 3-(aminopropyl)triethoxysilane and propyltrimethoxysilane coated Si wafers. PS spheres organized as ordered close-packed face-centered cubic structure with (111) planes on the hydrophilic surface while they gathered without the crystal structure on the hydrophobic surface. This paper also reports a simple and rapid method to fabricate the close-packed structure of hollow TiO2 spheres. The colloidal crystal of TiO2 hollow spheres was prepared using the PS sphere template on the hydrophobic surface. The mechanism for the growing multilayers of self-assembled PS p...

2011-01-01

9

{gamma}-Irradiation-induced preparation of Ag and Au nanoparticles and their characterizations

Structural properties of Cu(In,Ga)Se2 thin films prepared from chemically processed precursor layers

Using {gamma}-irradiation-induced reduction in the field of a {sup 60}Co {gamma}-ray source, colloidal silver and gold nanoparticles were prepared from their corresponding metal salts in aqueous solution and compared with those by chemical reduction. The radiation-based method provided silver nanoparticles with higher concentration and narrower size distribution than those obtained by chemical reduction method while there was no significant difference between the two strategies for the preparation of gold nanoparticles. {gamma}-Irradiation of 1.0 x 10{sup -3} M AgNO{sub 3} solution resulted in nearly 100 times more highly concentrated silver colloids than those by citrate reduction. Furthermore, the radiation method could lead to more highly concentrated silver colloids by simply increasing the concentration of AgNO{sub 3} solution up to 2.0 x 10{sup -2} M. The two metal ...

2007-10-15

10

Synthesis and characterization of Co-Ag core-shell nanoparticles

We have developed a chemical process for incorporating copper into indium gallium selenide layers with the goal of creating a precursor structure for the formation of copper indium gallium diselenide (CIGS) photovoltaic absorbers. Stylus profilometry, EDX, Raman spectroscopy, XRD and SIMS measurements show that when indium gallium selenide layers are immersed in a hot copper chloride solution, copper is incorporated as copper selenide with no increase in the thickness of the layers. Further measurements show that annealing this precursor structure in the presence of selenium results in the formation of CIGS and that the supply of selenium during the annealing process has a strong effect on the morphology and preferred orientation of these layers. When the supply of Se during annealing begins only once the substrate temperature reaches ? 400 deg. C , the resulting CIGS layers are smoother and have more pronounced preferred ...

2009-02-02

11

Synthesis and antimicrobial effects of colloidal silver nanoparticles in chitosan by?-irradiation

A micellar method has been used to prepare silver-coated cobalt (Co-Ag) nanoparticles. The synthesized particles have been deeply characterized by several methods, i.e., XRD, UV-Vis, TEM, XPS, and electrochemical techniques. There is every indication that the obtained particles show a truly core-shell structure. All the nanoparticles obtained under different conditions are in the size range 3-5 nm. High-resolution TEM (HRTEM), Fast Fourier Transformation (FFT), and Selected Area Electron Diffraction (SAED) indicated that the presence of hcp-Co and fcc-Ag, in which cobalt is located in the central area; meanwhile silver is at the edges of the nanoparticle. The absorption band of the Co-Ag colloid shifts to a longer wavelength and broadens relative to that of pure silver colloid. Voltammetric characterization allowed to determine the coverage of the cobalt core.

2010-08-15

12

Role of organic acids in promoting colloidal transport of mercury from mine tailings

Not Available

2010-04-01

13

Study of Pd-Sn/Al{sub 2}O{sub 3} catalysts prepared by an oxide colloidal route; Etude de catalyseurs Pd-Sn/Al{sub 2}O{sub 3} prepares par voie colloidale oxyde

Role of organic acids in promoting colloidal transport of mercury from mine tailings

2005-01-01

14

Surface coating on carbon nanofibers with alumina precursor by different synthesis routes

The oxide colloidal route, developed in the laboratory for mono-metallic catalysts, consists in preparing a metallic oxide hydro-sol which leads to the supported catalyst after deposition onto a support and an activation stage. In this work, this method has been adapted to the preparation of alumina supported bimetallic Pd-Sn catalysts to determine its interest for the control of the properties of the bimetallic phase (size, composition and structure). In the preliminary study concerning tin oxide sols, SnO{sub 2} (size=2,3 nm) and Sn{sub 6}O{sub 4}(OH){sub 4} (size = 25 nm) nano-particles were synthesized by neutralization respectively for tin(IV) and tin(H). The control through the pH of the aggregation of the PdO and SnO{sub 2} particles revealed that increasing oxide solubility promotes integral re-dispersion of the oxide particles. To synthesize oxide bimetallic sols, three strategies were defined. Copolymerization ...

2001-09-01

15

British Library Electronic Table of Contents (United Kingdom)

Alumina-reinforced carbon nanofiber nanocomposites were prepared using different routes; powders mixture, colloidal route and sol?gel process followed by spark plasma sintering (SPS). CNFs/xAl2O3 (x = 10?50 vol.%) were prepared through nanopowders mixing in a high-energy attrition milling. The main limitations in the preparation of this kind of nanocomposites are related to the difficulty in obtaining materials with a homogeneous distribution of both phases and the different chemical nature of CNFs and Al2O3, which causes poor interaction between them. A surface coating of CNFs by wet chemical routes with an alumina precursor is proposed as a very effective way to improve the interaction between CNFs and Al2O3. An improvement of 50% in fracture strength was found for similar nanocomposite ...

2011-01-01

16

Zhdanovka coking chemists and agriculture

Cutaneous gallium uptake in patients with AIDS with mycobacterium avium-intracellulare septicemia

The Zhdanovka Coking Plant supplies materials for commercial use, e.g. ammonium sulfate and colloidal sulfur for agriculture and road-cementing materials. The method used for the production of colloidal sulfur is described briefly.

1984-01-01

17

Preparation and characterization of CdS nanoparticles and CdS/polyacrylonitrile nanocomposites by {gamma}-irradiation

Gallium imaging is increasingly being used for the early detection of complications in patients with AIDS. A 26-year-old homosexual man who was HIV antibody positive underwent gallium imaging for investigation of possible Pneumocystis carinii pneumonia. Widespread cutaneous focal uptake was seen, which was subsequently shown to be due to mycobacterium avium-intracellulare (MAI) septicemia. This case demonstrates the importance of whole body imaging rather than imaging target areas only, the utility of gallium imaging in aiding the early detection of clinically unsuspected disease, and shows a new pattern of gallium uptake in disseminated MAI infection.

18

Sterically stabilized water based magnetic fluids: Synthesis, structure and properties

There has been considerable interest in producing and studying nanoparticle materials because of the effect of size on their structure, physical and chemical structure. Most studied nanoparticle semiconductors belong to the II-VI group, as they are relatively easy to synthesize and are generally prepared as particulates or in thin film form. Among II-VI compounds, CdS is one of the most studied materials. There are different ways to synthesize CdS nanoparticles such as colloidal particles, chemical decomposition, sol-gel, gas evaporation, magnetron sputtering, electrostatic deposition, and etc. {gamma}-irradiation is one of the effective methods for synthesis of nanomaterials. These nonomaterials have been extensively used in the preparation of nanocrystalline metals, metal oxides, and metal-polymer composites. However, The preparation of CdS nanoparticle and CdS/ polyacrylonitrile nanocomposite by ...

2001-11-15

19

Microgel/clay nanohybrids as responsive scavenger systems

Magnetic fluids (MFs), prepared by chemical co-precipitation followed by double layer steric and electrostatic (combined) stabilization of magnetite nanoparticles dispersed in water, are presented. Several combinations of surfactants with different chain lengths (lauric acid (LA), myristic acid (MA), oleic acid (OA) and dodecyl-benzene-sulphonic acid (DBS)) were used, such as LA+LA, MA+MA, LA+DBS, MA+DBS, OA+DBS, OA+OA and DBS+DBS. Static light scattering, transmission electron microscopy, small angle neutron scattering, magnetic and magneto-rheological measurements revealed that MFs with MA+MA or LA+LA biocompatible double layer covered magnetite nanoparticles are the most stable colloidal systems among the investigated samples, and thus suitable for biomedical applications.

2007-04-15

20

British Library Electronic Table of Contents (United Kingdom)

Microgel-clay composite particles were prepared by one-step surfactant-free precipitation polymerization. Laponite nanoparticles present in the reaction mixture become encapsulated during the microgel formation process. Microgel-clay composites based on poly(N-vinylcaprolactam-co-acetoacetoxyethyl methacrylate) containing different amount of incorporated clay nanoparticles were synthesized. The clay content was varied from 2 wt% to 18 wt%. The extremely high incorporation efficiency of the clay nanoparticles into microgels was detected. The size of the hybrid microgels was decreased from 700 nm to 100 nm by increase of the clay concentration in the reaction mixture. Obtained hybrid microgels exhibit negative surface charge and excellent colloidal stability. Microgel-clay composite particle...

2010-01-01

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21

NREL preprints for the 23rd IEEE Photovoltaic Specialists Conference

Measurement of achievable plutonium decontamination from gallium by means of Purex solvent extraction

Topics covered include various aspects of solar cell fabrication and performance. Aluminium-gallium arsenides, cadmium telluride, amorphous silicon, and copper-indium-gallium selenides are all characterized in their applicability in solar cells.

1993-05-01

22

"6"7Ga scintigraphy, serum lysozyme and angiotensin-converting enzyme in pulmonary sarcoidosis

Gallium is present in surplus weapons-grade plutonium (WG-Pu) at a concentration of approximately 1 wt %. Plans are to dispose of surplus WG-Pu by converting it to UO{sub 2}-PuO{sub 2} mixed oxide (MOX) fuel and irradiating it in commercial power reactors. However, the presence of high concentrations of gallium in plutonium poses a potential corrosion problem during the process of MOX fuel irradiation. The batch experiments performed in this study were designed to measure the capability of the PUREX solvent extraction process to separate gallium from plutonium under idealized conditions. Radioactive tracing of the gallium with {sup 72}Ga enabled the accurate measurement of low concentrations of extractable gallium. The experiments approximated the proposed flowsheet for WG-Pu purification, except that only one stage was used for each process: extraction, scrubbing, and stripping. ...

2000-07-01

23

Production of unsaturated nitriles using catalysts containing boron, gallium or indium

... angiotensin gallium 67 lungs lysozyme patients sarcomas beta decay

24

Relationship of pharmacokinetics and drug distribution in tissue to increased safety of amphotericin B colloidal dispersion in dogs.

This patent describes a process for the preparation of acrylonitrile or methacrylonitrile by the reaction of propylene or isobutylene, molecular oxygen and ammonia at a temperature of about 200/sup 0/ to 600/sup 0/C in the presence of an oxidation catalyst. The improvement consists of using as the oxidation catalyst an antimony-free catalyst having the atomic ratios described by the formula: X/sub a/A/sub b/C/sub c/Fe/sub d/Bi/sub e/Mo/sub 12/O/sub x/ wherein X is Ga, In or mixtures thereof; A is alkali metal; C is Ni, Co or mixture thereof; and wherein a is 0.01 to about 4; b is 0 to about 4; c and d are 0.01 to about 12; e is 0.01 to about 6; and x is a number sufficient to satisfy the valence requirements of the other elements present. In a process for the preparation of acrylonitrile or methacryloniotrile by the reaction of propylene or isobutylene, molecular oxygen and ammonia at a temperature of about 200/sup 0/ to 600/sup 0/C in the ...

1988-08-23

25

Density separation of materials by using magnetic fluids

The safety, pharmacokinetics, and distribution in tissue of an amphotericin B (AmB)-cholesteryl sulfate colloidal dispersion (ABCD) were compared with those of micellar amphotericin B-deoxycholate (m-AmB)....Full Text Available

1992-02-01

26

Patterns of gallium-67 scintigraphy in patients with acquired immunodeficiency syndrome and the AIDS related complex

The magnetic fluid is a colloidal suspension of magnetite in kerosene, prepared by a low-cost process. Separation is accomplished in an open trough filled with magnetic fluid. A magnetic field is established in the fluid, by energizing an electromagnet having poles on each side of the trough. Due to the design of the magnet poles and air gaps, the magnetic field is strongest at the bottom, about 10,000 oersteds, and uniformly decreases in strength to about 2000 oersteds at the top of the fluid. Therefore, the magnetic field gradient increases with depth. The magnetic force attracts the entire separation medium (magnetic fluid) creating a reaction force of equal magnitude and acting in the opposite direction. This reaction created within a magnetic fluid/magnetic field combination is called a magnetic levitation force. It increases with the field strength. In this case because the magnetic field is strongest at the bottom of the trough, the ...

1980-03-01

27

Gallium Arsenide Pilot Line for High Performance ...

Thirty-two patients with AIDS related complex (ARC) or acquired immunodeficiency syndrome (AIDS) underwent /sup 67/Ga scans as part of their evaluation. Three patterns of /sup 67/Ga biodistribution were found: lymph node uptake alone; diffuse pulmonary uptake; normal scan. Gallium-67 scans were useful in identifying clinically occult Pneumocystis carinii pneumonia in seven of 15 patients with ARC who were asymptomatic and had normal chest radiographs. Gallium scans are a useful ancillary procedure in the evaluation of patients with ARC or AIDS.

1987-07-01

28

Gallium-67 activated charcoal: a new method for preparation of radioactive capsules for colonic transit study

... used in our aluminum process include a barrier to isolate aluminum from the gold-based ohmic contacts, thereby preventing "purple plague," and a ...

1991-08-08

29

Indium-111 is currently the radionuclide of choice for colonic transit study. However, it is expensive and not available in many hospitals. Technetium-99m has been proposed for colonic transit study but the short half-life has limited its use. Gallium-67 citrate is inexpensive and available in most countries. Most importantly, it has a suitable half-life for colonic transit study. Attempts have been made in some studies to use {sup 67}Ga citrate to label activated charcoal, but the results have not been good because of poor stability. In this study, we successfully labelled activated charcoal with {sup 67}Ga citrate by adding alcohol and 5% glucose solution. To evaluate the in vitro stability, the {sup 67}Ga-activated charcoal was incubated in a milieu mimicking the intestinal content, containing lipase, trypsin and glycochenodeoxycholate at different pH values (6.0, 7.0, 7.4 and 8.0) and for different durations (0 h, 24 h, 48 h, 72 h and 96 h). For the in vivo ...

2003-06-01

30

Sentinel nodes detected with 99mTc-fitate and 99mTc-sulphur colloid in patients with lower extremities melanoma

It is argued that colloidal fractals are self-similar because all computed fractal dimensions of a given fractal have the same value. However, in a mathematical sense the self-similar character of a set implies not only that all fractal dimensions agree in value but also the existence of a set of similarities that generates the fractal. In this paper we report some results from two-dimensional aggregation experiments at the air-liquid interface and show that, with the appropriate selection for the similarities, the colloidal fractal aggregates can be considered as self-similar in a more mathematically rigorous form. (author)

2001-09-14

31

Scanning Electron Microscopy of Sarcophagid (Diptera) Larvae Recovered from a Case of Human Cutaneous Myiasis

English Aug 2006 p. 147 Brazil Anselmi, CE Riccardi, F. Santos, AP

2006-08-01

32

Role of natural organic matter (NOM), colloidal particles, and solution chemistry on ultrafiltration performance

... point dried and mounted on aluminum stubs using colloidal silver paste. Mounted specimens were observed and photographed using ... ...

33

British Library Electronic Table of Contents (United Kingdom)

Mechanistic studies on a charged ultrafiltration (UF) membrane fouled with natural organic matter (NOM) and colloidal particles are systematically investigated to understand the relative role of each NOM fraction and the presence of colloidal particulate to membrane fouling. Humic acid (HA), dextran, and kaolin were employed as surrogate model foulants representing the organic hydrophobic acid NOM, hydrophilic neutral NOM, and inorganic colloidal materials, respectively. The results obtained showed that the organic NOM of hydrophilic surrogate (dextran) plays a primary role in promoting membrane fouling, followed by hydrophobic acids and inorganic kaolin, but to a lesser extent than organic NOM compounds. Significant differences in the extent of fouling between dextran and HA have been obs...

2011-01-01

34

Facial osteomyelitis as complication of chronic sinusitis in hemophiliac-AIDS patients - scintigraphic evaluation with technetium-99m-MDP and Gallium-67; Osteomielitis da face como complicacao de sinusite cronica em hemofilicos aideticos - avaliacao cintilografica com {sup 99m} Tc-MDP e {sup 67} Ga

WASTE SOLIDIFICATION BUILDING BENCH SCALE HIGH ACTIVITY WASTE SIMULANT VARIABILITY STUDY FY2008

In the paper six cases of facial osteomyelitis as a complication of chronic sinusitis in hemophiliac-AIDS patients are reported. Osteomyelitis was suggested by an increasing of erythrocyte sedimentation rate. The diagnosis was confirmed by a positive {sup 99m} Tc MDP scintigraphy. The patients were submitted to clinical treatment. The erythrocyte sedimentation rate and 67-gallium citrate scans were used in the follow-up of the therapy. Three patients had negative gallium after three weeks of organism-specific antibiotic therapy; in two patients the gallium scintigraphy remained positive. One patient did not undergo the radionuclide scan for this clinical conditions. These results suggest that MDP scans showed higher sensitivity and specificity in detection of bone disease in chronic sinusitis. Gallium scans appeared to be valuable tool in the follow-up of the infection. There are no reports in the ...

1997-01-01

35

Strategies for gallium removal after focused ion beam patterning of ferroelectric oxide nanostructures

The primary objective of this task was to perform a variability study of the high activity waste (HAW) acidic feed to determine the impact of feed variability on the quality of the final grout and on the mixability of the salt solution into the dry powders. The HAW acidic feeds were processed through the neutralization/pH process, targeting a final pH of 12. These fluids were then blended with the dry materials to make the final waste forms. A secondary objective was to determine if elemental substitution for cost prohibitive or toxic elements in the simulant affects the mixing response, thus providing a more economical simulant for use in full scale tests. Though not an objective, the HAW simulant used in the full scale tests was also tested and compared to the results from this task. A statistically designed test matrix was developed based on the maximum molarity inputs used to make the acidic solutions. The maximum molarity inputs were: 7.39 HNO{sub 3}, 0.11618 ...

2009-03-20

36

Role of "9"9"mTc sulfur colloid scintigraphy in differentiating non-cirrhotic portal fibrosis from cirrhosis liver

As part of a study into the properties of ferroelectric single crystals at nanoscale dimensions, the effects that focused ion beam (FIB) processing can have, in terms of structural damage and ion implantation, on perovskite oxide materials has been examined, and a post-processing procedure developed to remove such effects. Single crystal material of the perovskite ferroelectric barium titanate (BaTiO_3) has been patterned into thin film lamellae structures using a FIB microscope. Previous work had shown that FIB patterning induced gallium impregnation and associated creation of amorphous layers in a surface region of the single crystal material some 20 nm thick, but that both recrystallization and expulsion of gallium could be achieved through thermal annealing in air. Here we confirm this observation, but find that thermally induced gallium expulsion is associated with the formation of gallium-rich ...

2007-01-24

37

Influence of Dopants on Characteristics of X-Ray Detectors Fabricated from Indium-, Gallium-, and Chlorine-Doped Cadmium Telluride Single Crystals

Two most important causes of portal hypertension are cirrhosis of liver and non-cirrhotic portal fibrosis (NCPF). The purpose of this study was to assess the scintigraphic appearances of "9"9"mTc sulfur colloid liver scan in differentiating liver cirrhosis from NCPF. Materials and Methods: Retrospective analysis records of 146 patients (91 male and 55 female) with diffuse hepatocellular disease was done for liver size, liver uptake, spleen size, spleen uptake, colloid shift to bone marrow and lungs. Results: Cirrhotic livers showed patchy and lower uptake than NCPF (59% vs. 20%, P-value 0.041). Spleen size was significantly increased in NCPF compared to cirrhosis (100% vs. 67%, P-value 0.0137). Significant colloid shift to bone marrow was noted in cirrhosis (84% vs. 7%, P-value<0.0001). Conclusion: "9"9"mTc sulfur colloid liver scan is a non-invasive procedure having a useful adjunctive role in ...

38

PVT -- A photovoltaic/thermal concentrator total energy system: Final phase 1 project report. Building opportunities in the U.S. for photovoltaics (PV:BONUS) Two

Counting characteristics of X-ray detectors fabricated from indium-doped, gallium-doped, and chlorine-doped CdTe have been investigated. The detectors fabricated from indium-doped and gallium-doped crystals showed radiation-induced polarization, namely, a progressive decrease of count rate with an increase of photon fluence in the high-photon-fluence region, while the detectors fabricated from chlorine-doped crystals did not. Results from current-voltage characteristics of the detectors indicated that the different counting characteristics of these detectors originated from the difference in internal electric fields in each detector.

1995-08-01

39

Characterization of tris(N-substituted-2-methyl-3-hydroxy-4-pyridinonato)technetium(IV) cations

United Solar completed its Phase 1 report and its proposal for Phase 2 of the PVBONUS Two program at the end of March 1998. At the same time, it also completed and submitted a proposal to the California Energy Commission PIER program for additional funding to cost-share development and testing of a pre-production model of the PVT-14. It was unsuccessful in both of these proposed efforts. While waiting for the proposal decisions, work continued in April and May to analyze the system design and component decisions described below. This document is a final summation report on the Phase 1 effort of the PVBONUS Two program that describes the key technical issues that United Solar and its subcontractor, Industrial Solar Technology Corporation, worked on in preparation of a Phase 2 award. The decisions described were ones that will guide the design and fabrication of a pre-production prototype of a 1500:1 mirrored concentrator with gallium arsenide ...

1998-12-31

40

Characterization of tris(N-substituted-2-methyl-3-hydroxy-4-pyridinonato)technetium(IV) cations

A burgeoning interest in technetium coordination chemistry has been spurred by its widespread use in nuclear medicine. Recent focus has been on the design and preparation of new technetium complexes, the lipophilicity, polarity, and overall charge of which can be readily altered by simple substitutions in the molecular framework of the ligand in order to optimize the biodistribution and target specific organs. Examples are cationic (Cardiolite) and neutral (Ceretec) technetium complexes, used as myocardial and brain imaging agents, respectively. The authors have been pursuing a continuing study of tris(3-hydroxy-4-pyridinonato)gallium and -indium complexes that are water soluble, are hydrolytically stable, and are of varying lipophilicity and neutral charge. Studies of in vivo in rabbits and mice have revealed that several of these cationic complexes may be useful as morphologic kidney imaging agents, with [{sup 99m}Tc(pap){sub 3}]{sup +} ...

1994-11-23

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41

High bandgap window layer for GaAs solar cells and fabrication process therefor

A burgeoning interest in technetium coordination chemistry has been spurred by its widespread use in nuclear medicine. Recent focus has been on the design and preparation of new technetium complexes, the lipophilicity, polarity, and overall charge of which can be readily altered by simple substitutions in the molecular framework of the ligand in order to optimize the biodistribution and target specific organs. Examples are cationic (Cardiolite) and neutral (Ceretec) technetium complexes, used as myocardial and brain imaging agents, respectively. The authors have been pursuing a continuing study of tris(3-hydroxy-4-pyridinonato)gallium and -indium complexes that are water soluble, are hydrolytically stable, and are of varying lipophilicity and neutral charge. Studies of in vivo in rabbits and mice have revealed that several of these cationic complexes may be useful as morphologic kidney imaging agents, with ["9"9"mTc(pap)_3]"+ showing elevated ...

42

Gallium Disrupts Iron Uptake by Intracellular and Extracellular Francisella Strains and Exhibits Therapeutic Efficacy in a Murine Pulmonary Infection Model ?

The specification describes a semiconductor solar cell and fabrication process therefor wherein a thin N-type gallium arsenide layer is deposited on a larger P-type substrate layer which is selected from the group of III-V ternary compounds consisting of aluminum phosphide antimonide, AlPSb, and aluminum indium phosphide, AlInP. P-type impurities are diffused from the substrate layer into a portion of the thin N-type gallium arsenide layer to form P-type region wherein which defines a PN junction in the thin gallium arsenide layer. Thus, the quantity of gallium arsenide required to provide this PN photovoltaic junction layer in the cell is minimized, and th P-type substrate serves as a high bandgap window layer for the cell. Such high bandgap of this window material is especially well suited for efficiently transmitting the blue spectrum of sunlight to the PN junction, thus enhancing the power ...

1979-05-29

43

A Gallium Arsenide MESFET Operational Amplifier for Use in ...

Francisella tularensis requires iron (Fe) for growth, but the biologic sources of Fe for this organism are largely unknown. We found that Francisella sp. growing in...Full Text Available

2010-01-01

44

Colloid retention in porous media of various porosities: predictions by the hemispheres-in-cell model.

... 19. AmSTR.ACT (Continuq 9n =usff i En " Adentity by bo nwnb Agallumarsemoe t(a.") MEtFET ... 2%ITE 4T (Include Area Code) InghE SMO ...

1993-12-01

45

Bimodal colloidal mixtures: From fast to slow aggregation regions

The hemispheres-in-cell model for colloid transport and deposition in simple granular filtration media preserves the utilities provided in the Happel sphere-in-cell but also incorporates features (e.g., grain-to-grain contact) that are shown to drive colloid deposition from experiments and simulations when colloid-surface repulsion exists (Ma, H.; Pedel, J.; Fife, P.; Johnson, W. P. Environ. Sci. Technol., 2009, in press). The capability of the hemispheres-in-cell model to predict colloid deposition in the absence of repulsive energy barriers for different particle sizes and fluid flow velocities was previously examined (Ma, H.; Pedel, J.; Fife, P.; Johnson, W. P. Environ. Sci. Technol., 2009, in press). In this article, we examine the influence of porosity on colloid deposition in terms of theoretical (simulated) collector efficiencies from the hemispheres-in-cell model, as well as ...

2010-02-01

46

British Library Electronic Table of Contents (United Kingdom)

A Brownian dynamics simulation has been used to investigate the aggregation kinetics of bimodal colloidal mixtures with similar surface chemistries but different sizes, driven by the DLVO interaction potential. The time evolution of structural formation is examined by the mean number of neighbors under fast and slow aggregation regions. It was found that the electrolyte ionic strength affects the kinetic pattern of colloidal aggregation. Under the high electrolyte ionic strength conditions (fast aggregation), the selective aggregation of the least stable single component can take place in the early stage, while the other component is enriched in this least stable component in the later stage. With the ionic strength decreasing (towards the slow aggregation), the hybrid aggregation (selecti...

2011-01-01

47

Hemispheres-in-cell geometry to predict colloid deposition in porous media.

Phase diagram and effective shape of semi-flexible colloidal rods and biopolymers

A "hemispheres-in-cell" geometry is provided for prediction of colloid retention during transport in porous media. This new geometry preserves the utilities provided in the Happel sphere-in-cell geometry; namely, the ability to predict deposition for a range of porosities, and representation of the influence of neighboring collectors on the fluid flow field. The new geometry, which includes grain to grain contact, is justified by the eventual goal of predicting colloid deposition in the presence of energy barriers, which has been shown in previous literature to involve deposition within grain to grain contacts for colloid:collector ratios greater than approximately 0.005. In order to serve as a platform for predicting deposition in the presence of energy barriers, the model must be shown capable of quantitatively predicting deposition in the absence of energy barriers, which is a requirement that was not met by previous ...

2009-11-15

48

Scintiscanning with aerosols of "9"9Tc"m DTPA in the diagnostic strategy for pneumocystosis in aids patients

We study suspensions of semi-flexible colloidal rods and biopolymers using an Onsager-type second-virial functional for a segmented-chain model. For suspensions of thin and thick fd virus particles we calculate phase diagrams in quantitative agreement with experimental observations, and we find their effective state-point dependent shape to be much shorter and thicker than the actual shape. We also calculate the stretching of worm-like micelles in a host fd virus solution, again finding agreement with experiments. For both systems, our results show that the fd virus stiffness can play a key role in system behavior.

2011-01-01

49

High-efficiency solar cell and method for fabrication

Pulmonary clearance of an aerosol of "9"9Tc"m DTPA was measured in 21 non-smoking AIDS and pneumocystosis patients. The results were compared with those of pulmonary scintiscanning with gallium. All the patients exhibited increased clearance, evidence of a considerable alteration in alveolar permeability. This increase was also observed in patients with normal chest X-rays and normal blood gases. The average clearance in these patients was 6 #+-# 2% min"-"1 as compared with a normal 1.1 #+-# 0.3% min"-"1. Conversely, only four out of eight patients with normal chest X-rays had abnormal gallium scans. Clearance returned to normal after recovery. Measurement of DTPA clearance appears to be a very sensitive indicator for the detection and follow-up of pneumocystosis. However, it is not very specific since it can be increased by tobacco poisoning, drug abuse and the presence of lymphocytic alveolitis. An examination with normal findings can ...

1988-08-15

50

Detection of abnormalities in febrile AIDS patients with In-111-labeled leukocyte and Ga-67 scintigraphy

A high-efficiency 3- or 4-junction solar cell is disclosed with a theoretical AM0 energy conversion efficiency of about 40%. The solar cell includes p-n junctions formed from indium gallium arsenide nitride (InGaAsN), gallium arsenide (GaAs) and indium gallium aluminum phosphide (InGaAlP) separated by n-p tunnel junctions. An optional germanium (Ge) p-n junction can be formed in the substrate upon which the other p-n junctions are grown. The bandgap energies for each p-n junction are tailored to provide substantially equal short-circuit currents for each p-n junction, thereby eliminating current bottlenecks and improving the overall energy conversion efficiency of the solar cell. Additionally, the use of an InGaAsN p-n junction overcomes super-bandgap energy losses that are present in conventional multi-junction solar cells. A method is also disclosed for fabricating the high-efficiency 3- or 4-junction solar cell by ...

1999-08-31

51

Thirty-six patients with acquired immunodeficiency syndrome (AIDS), who were febrile but without localizing signs, underwent indium-111 leukocyte scintigraphy 24 hours after injection of labeled white blood cells (WBCs) and were restudied 48 hours after injection of gallium-67 citrate. Fifty-six abnormalities were identified as possible sources of the fever; 27 were confirmed with biopsy. Of these 27, 15 were identified only on In-111 WBC scans (including colitis, sinusitis, and focal bacterial pneumonia); six, only on Ga-67 scans (predominantly Pneumocystis carinii pneumonia and lymphadenopathy); and six, on both studies (predominantly pulmonary lesions). In-111 WBC scanning revealed 21 of 27 abnormalities (78%) and gallium scanning, 12 of 27 (44%). If only one scintigraphic study has been performed, particularly with Ga-67, a significant number of lesions would not have been detected. The authors believe radionuclide evaluation of the febrile ...

52

Multi-fragmentation

No abstract prepared.

1998-08-01

53

BIOINORGANIC CHEMISTRY

Spectroscopy of gadolinium gallium garnet crystals doped with Y b3+ revisited

No abstract prepared.

2002-01-01

54

Ion beam induced charge imaging of epitaxial GaN detectors

The optical spectroscopy measurements of gadolinium gallium garnet (GGG) crystals doped with Yb show evidence of the presence of non-equivalent optical centers with very similar radiative decay rates. The energy level schemes of those centers have been determined on the basis of optical absorption, luminescence and Raman experiments. Crystal field fitting resulted in two sets of slightly different crystal field parameters for two non-equivalent Yb centers. Both sets of parameters describe perfectly the experimentally detected Y b3+ energy levels. Correlation between systematic trends in the experimental energy level schemes and crystal field parameters is discussed.

2010-06-30

55

Feasibility investigations of growing and characterizing gallium arsenide crystals in ribbon form. Quarterly progress report 1 Jan-31 Mar 1975

We report the use of ion beam induced charge imaging to characterise the charge signal uniformity of epitaxial gallium nitride radiation detectors. The detectors were fabricated from 2 {mu}m thick semi-insulating gallium nitride, grown by MOCVD on a sapphire substrate. A carrier concentration of 1.4x10{sup 15} cm{sup -3} was measured using capacitance-voltage measurements. Ion beam induced charge imaging was carried out with a 2 MeV alpha particle beam focussed to a 3 {mu}m diameter and raster scanned across the device. The resulting ion beam images show excellent charge signal uniformity in this material with no evidence of material defects or polycrystalline structure on the micrometer length scale. No evidence of charge signal trapping was observed in these devices.

2004-09-21

56

Prevention of central nervous system involvement with intrathecal _1_9_8Au colloid and methotrexate in non-Hodgkin lymphoma, acute non-lymphatic leukaemia and Ewing's sarcoma

The feasibility of continuous production of gallium arsenide ribbon single crystals, by passage of a molten zone through boron-oxide encapsulated GaAs feedstock, is being investigated. Polycrystalline GaAs ribbons have been grown in graphite boats by passage of a wide zone through B2O3-encapsulated feed-stock, confined by a quartz cover plate. Failure to remove the encapsulant above its glass transition temperature, however, resulted in cracking of the ribbons on cooling to room temperature. In order to study the crucial zone melting step in isolation from the encapsulation steps of the continuous process, a constrained-zone melting apparatus has been constructed in which the boron oxide serves only as a sealant to suppress arsenic vaporization. Large grained polycrystalline samples have been produced with this apparatus.

57

Formation of colloidal silver nanoparticles stabilized by Na+-poly(gamma-glutamic acid)-silver nitrate complex via chemical reduction process.

Intrathecal _1_9_8Au colloid and methotrexate were administered to 27 children (between 1972 and 1981) with non-lymphatic leukaemia, 21 with non-Hodgkin lymphoma and two with Ewing's sarcoma to prevent CNS involvement. In one boy with non-lymphatic leukaemia a stable remission after a three-year period of cytostatic treatment ended with isolated CNS involvement. No isolated CNS recurrence occurred in children with non-Hodgkin lymphoma receiving regular radiogold administration. Combined iris and CNS recurrence occurred in one child with non-Hodkin lymphoma. Eleven of 21 children with non-Hodgkin lymphoma have been in complete initial remission for 4-39 months without cytostatic treatment. Late cerebral complications have not been observed after _1_9_8Au colloid and methotrexate. (orig.).

58

Detection of pulmonary aspiration in infants and children with respiratory disease: concise communication

Macromolecular and polyanionic Na(+)-poly(gamma-glutamic acid) (PGA) silver nitrate complex acted as both a metal ion provider and a particle protector to fabricate nanosized silver colloids under chemical reduction by dextrose. The formation and size of particles have been characterized from transmission electron microscopy (TEM), dynamic light scattering analysis and UV-vis spectrophotometer. The results showed that the average particle size was 17.2+/-3.4 to 37.3+/-5.5 nm, apparently depending on the complex concentration. It was found that the rate constant and conversion of silver nanoparticles were proportional to the concentration of PGA. The growth mechanism of nanosized silver colloid was fully discussed. In addition, the in vitro cytotoxicity evaluated by L929 fibroblasts proliferation and antibacterial activity against Gram-positive strain (methicillin-resistant S. aureus (MRSA)) and Gram-negative strain (P. aeruginosa) bacteria have ...

2007-05-18

59

Wetlands remediation of gallium arsenide: A case study describing a site-specific exposure assessment

Twenty children with respiratory disease ingested 500 ..mu..Ci of Tc-99m sulfur colloid orally, and scintigrams of the thorax were obtained to determine whether pulmonaryaspiration of gastric contents could be detected. The children ranged in age from 1 mo to 14 y; 13 were 8 months of age or younger. Children were studied at 5 min and 4 h after ingestion of Tc-99m sulfur colloid using a high-sensitivity computer oscilloscope to record 100K-count images. Additional images were obtained after the children had slept overnight. Five children (25%) showed definite pulmonary accumulation of activity; four of these also had a barium swallow and three showed either pulmonary aspiration of barium or moderately severe gastroesophageal reflux. Oral ingestion of Tc-99m sulfur colloid provides a noninvasive means for diagnosing pulmonary aspiration under physiologic conditions in infants and children.

1980-04-01

60

Transfer of chemical elements to breast milk

Based upon the existing regulatory cleanup criteria, remediation of this wetlands was proposed by the New Jersey Department of Environmental Protection and Energy (NJDEPE). This remedial process would have totally destroyed a thriving Old Field Wetlands. Site-Specific evaluation of the chemicals of potential concern (CPC), remaining source areas, potential environmental fate and transport (EF and T), toxicology (including oral absorption and bioaccumulation) and potential land use scenarios were conducted. It was determined that although the analytical chemistry data reported soil concentrations of arsenic, the compound used by the facility and discharged to the wetlands sediments was in fact gallium arsenide. Secondly, all remaining source areas and hot spots had previously been remediated. Vertical migration to soils had not progressed past a depth of 3 feet and groundwater/surface water did not contain significantly elevated concentrations of ...

1994-12-31

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

61

The AMOS cell - An improved metal-semiconductor solar cell

The project is intended to yield information on the transfer factors describing the transfer of ingested radionuclides to breast milk for the following elements: antimony, cerium, chromium, cobalt, gallium, lanthanum, molybdenum, niobium, radium, ruthenium, silver, thorium, titanium, and uranium. Those yet unknown or poorly known transfer factors are required in order to be able to develop a reliable model for description and assessment of the transfer of the radionuclides and the possibly resulting hazardous doses to infants, and for subsequent formulation of recommendations for radiological protection of the population. (orig./CB)

1999-08-01

62

Quantitative bone and 67Ga scintigraphy in the differentiation of necrotizing external otitis from severe external otitis

A new fabrication process is being developed which significantly improves the efficiency of metal-semiconductor solar cells. The resultant effect, a marked increase in the open-circuit voltage, is produced by the addition of an interfacial layer oxide on the semiconductor. Cells using gold on n-type gallium arsenide have been made in small areas (0.17 sq cm) with conversion efficiencies of 15% in terrestrial sunlight.

1975-01-01

63

Quantitative bone and 67Ga scintigraphy in the differentiation of necrotizing external otitis from severe external otitis

Qualitative technetium Tc 99m bone scintigraphy using phosphate compounds and gallium 67 scintigraphy were described as a helpful means in diagnosing necrotizing external otitis (NEO). They were, however, claimed to be nonspecific. Quantitative Tc 99m methylene diphosphonate bone scintigraphy and gallium 67 scintigraphy were performed in eight patients with NEO and in 20 patients with severe external otitis, in order to prove usefulness of scintigraphy in the diagnosis of NEO. Ratios of lesion to nonlesion for bone scintigraphy were 1.67 {plus minus} 0.16 in patients with NEO and 1.08 {plus minus} 0.09 in patients with severe external otitis, and for gallium 67 scintigraphy they were 1.35 {plus minus} 0.24 in NEO patients and 1.05 {plus minus} 0.03 in patients with severe external otitis. There was no difference in uptake between diabetic patients with severe external otitis and nondiabetic patients. The scintigraphic ...

1991-06-01

64

Breakdown electroluminescence spectra in structures based on the solid solutions Ga/sub 1-x/Al/sub x/P(As)

Qualitative technetium Tc 99m bone scintigraphy using phosphate compounds and gallium 67 scintigraphy were described as a helpful means in diagnosing necrotizing external otitis (NEO). They were, however, claimed to be nonspecific. Quantitative Tc 99m methylene diphosphonate bone scintigraphy and gallium 67 scintigraphy were performed in eight patients with NEO and in 20 patients with severe external otitis, in order to prove usefulness of scintigraphy in the diagnosis of NEO. Ratios of lesion to nonlesion for bone scintigraphy were 1.67 #+-# 0.16 in patients with NEO and 1.08 #+-# 0.09 in patients with severe external otitis, and for gallium 67 scintigraphy they were 1.35 #+-# 0.24 in NEO patients and 1.05 #+-# 0.03 in patients with severe external otitis. There was no difference in uptake between diabetic patients with severe external otitis and nondiabetic patients. The scintigraphic studies were also evaluated using a ...

65

Atlas of nuclear medicine imaging

The authors investigate the breakdown luminescence spectra in reverse-biased p-n heterojunctions based on gallium and aluminum phosphides and arsenides for the purpose of determining their behavior as lasing and photodetection materials. Data are given on temperature coefficients, band gap structure, bremsstrahlung, hot carrier mobility and photon emission, and transition and recombination parameters.

1987-08-01

66

Synchrotron SAXS Studies of Nanostructured Materials and Colloidal Solutions: A Review

An exhaustive compendium of normal and abnormal imaging is presented. The following systems and procedures are illustrated by over 2800 captioned illustrations: liver, spleen, and hepatobiliary imaging; perfusion and ventilation lung imaging; thyroid imaging; salivary gland imaging; bone imaging; brain imaging; radionuclide cisternography; blood flow studies; gallium imaging; nuclear cardiology; and renal imaging. Not included in the atlas are adrenal imaging procedures and emission computed tomography. (ERB)

1981-01-01

67

Scientific Electronic Library Online (English)

Abstract in english Structural characterisations using the SAXS technique in a number of nanoheterogeneous materials and liquid solutions are reviewed. The studied systems are protein (lysozyme)/water solutions, colloidal ZnO particles/water sols, nanoporous NiO-based xerogels, hybrid organic-inorganic siloxane-PEG and PPG nanocomposites and PbTe semiconductor nanocrystals embedded in a glass matrix. These investigations also focus on the transformations of time-varying structures and on str (more) uctural changes related to variations in temperature and composition. The reviewed investigations aim at explaining the unusual and often interesting properties of nanostructured materials and solutions. Most of the reported studies were carried out using the SAXS beamline at the National Synchrotron Light Laboratory (LNLS), Campinas, Brazil.

2002-03-01

68

Preparing the works for the St-Genis roundabout.

Waste to energy technologies.

Preparing the works for the St-Genis roundabout.

1999-01-01

69

Temperature of exploding nuclei

No abstract prepared.

2010-04-01

70

No abstract prepared

1999-10-01

71

Status report ANKE

Pionic fusion on the deuteron

No abstract prepared.

2002-03-01

72

Nano technology and radiotracers

No abstract prepared.

2002-03-01

73

NEUTRINOS, PAST AND PRESENT.

No abstract prepared.

2008-10-15

74

Human cornea glycosaminoglycans

No abstract prepared.

2002-10-11

75

Radiochemical and Raman spectroscopy study of the nature of adsorbed layers on a silver electrode

No abstract prepared.

1997-07-01

76

Effect of the hydroxyl-ethyl-cellulose concentration in a silicon wafer polishing slurry on the wafer surface roughness

The structure of the layers formed on a silver electrode by the adsorption of pyridine, Cl"-, CN"- and SO_4"2"- is discussed. A comparison of the amount of the species adsorbed with their Raman spectra shows that there is no simple relation between the species concentration and the enhancement of the Raman intensity. Furthermore, the inhomogeneity of the layers is shown by Raman microscopy observations. These results lead the authors to propose the formation of a new species stabilized in the colloidal silver layer. The Raman enhancement could be explained by the existence of a resonance effect. (Auth.).

77

Dissection of the sentry ganglion by laparoscopic boarding in patients with cervix uterine cancer clinical stages IA2 at IIB

The purpose of this study was to reveal the mechanism of wafer touch polishing using a high purity colloidal silica slurry containing organic surfactants such as hydroxyl-ethyl cellulose. The effect of the surfactant concentration on wafer touch polishing was studied to improve the roughness of wafer surfaces after polishing. The haze level and the micro-roughness decreased with decreasing surfactant concentration.

2006-04-01

78

Transfer of chemical elements to breast milk; Transfer von Elementen in die Muttermilch

The obtained results in presently study demonstrate that the feasibility of the detection of the sentry ganglion in cervix uterine cancer using a boarding by laparoscopic via, being necessary the use of twice labelled as much with patent blue and radioisotope (colloid of labelled rhenium with "9"9"mTc, total dose of 3 MCi) to achieve the identification of the ganglion. (Author)

2005-05-04

79

RBS Characterization of Yttrium Iron Garnet Thin Films

The project is intended to yield information on the transfer factors describing the transfer of ingested radionuclides to breast milk for the following elements: antimony, cerium, chromium, cobalt, gallium, lanthanum, molybdenum, niobium, radium, ruthenium, silver, thorium, titanium, and uranium. Those yet unknown or poorly known transfer factors are required in order to be able to develop a reliable model for description and assessment of the transfer of the radionuclides and the possibly resulting hazardous doses to infants, and for subsequent formulation of recommendations for radiological protection of the population. (orig./CB) [German] Ziel des Projektes ist die Ermittlung von Transferfaktoren fuer den Uebergang von Radionukliden aus der Nahrung der Muetter in die Muttermilch fuer die Elemente Antimon, Cer, Chrom, Cobalt, Gallium, Lanthan, Molybdaen, Niob, Radium, Ruthenium, Silber, Thorium, Titan und Uran. Um die Exposition und damit die ...

1999-08-01

80

Production of a helium beam in a focused ion beam machine using an electron beam ion trap

Magnetic materials such as yttrium iron garnet (YIG) are of great importance for its magneto-optic properties and for their potential applications in the domain of optical telecommunications. The deposition of thin films of YIG, on quartz or GGG (gadolinium gallium garnet) substrate, was performed using radio frequency non reactive magnetron sputtering, followed by high temperature annealing which is needed to enhance the crystallinity of the layers. Rutherford backscattering spectrometry RBS was used to determine the thickness and stoichiometry of the performed layers in order to investigate correlations between growth conditions and the quality of the final material. RBS measurements showed the influence of the deposition time and the temperature substrate on the film growth and its stoichiometry. (author)

2008-12-13

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

81

Photon deficient bone metastasis of hepatocellular carcinoma with avid gallium-67 uptake

Gallium liquid-metal ion sources that have been introduced in the late 1970s have allowed the development of a new class of micro- and nanofabrication tools collectively denominated as focused ion beam (FIB) machines. To investigate the potential of a helium beam in such a FIB instrument the authors have tested a room-temperature electron beam ion trap coupled with a high resolution FIB machine. In this letter they present their first results in target imaging using a helium beam with a resolution that allows to account for a beam diameter in the submicrometer range.

2007-02-19

82

While bone metastases producing photon deficient defects on bone scintigraphy have previously been reported, this finding has not been emphasized for hepatocellular carcinoma (HCC). Furthermore, ''filling-in'' of such photon deficient defects with 67Ga at skeletal sites of metastatic HCC has not been described. In this case report, the combination of a photon deficient defect on bone scintigraphy and avid accumulation of 67Ga in this same area was of value in confirming the diagnosis of metastatic HCC.

1985-12-01

83

Phase diagrams

Kinetic studies of alkali metal gallide decomposition in aqueous hydroxide solutions

The description is presented of binary phase diagrams of titanium alloyed with the following elements: silver, aluminium, arsenic, gold, boron, barium, beryllium, bismuth, carbon, calcium, cadmium, cobalt, chromium, copper, iron, gallium, germanium, hydrogen, hafnium, indium, iridium, potassium, lithium, magnesium, manganese, molybdenum, nitrogen, sodium, niobium, nickel, oxygen, osmium, phosphorus, lead, palladium, platinum, plutonium, rhenium, lanthanium, cerium, preseodymium, neodymium, gadolinium, erbium, terbium, thulium, lutetium, rhodium, ruthenium, scandium, silicon, tin, strontium, tantalum, technetium, thorium, uranium, vanadium, tungsten, yttrium, ytterbium, zinc and zirconium.

84

Aluminium, gallium and indium complexing with methylthymol blue

Kinetics of decomposition of gallium and alkali metal intermetallic compounds in the systems LiGa-LiOH, LiGa-NaOH and LiGa-KON was studied in the temperature range of 40-80 deg C. It was ascertained that increase in temperature gives rise to increase in decomposition rate, whereas increase in hydroxide concentration involves the reaction deceleration. An assumption was made that the decomposition occurs with superimposing of two mechanisms, i.e. chemical and electrochemical decomposition. Basic kinetic characteristics of the process were determined - decomposition rate constant and current density

2002-01-01

85

Third order optical nonlinearity of colloidal metal nanoclusters formed by MeV ion implantation

Al, Ga and In complexing with methylthymol blue (H_6R) purified by gel filtration is studied. in the case of metal excess complexes with the ratio of components M:H_6R=2:1 with #lambda#=587(Al), 590(Ga) and 593 nm(In) appear. In the case of reacting agent excess complexes with the ratio of component 1:1 with #lambda#_m_a_x=480-490 (Al) and 480 nm(Ga, In) appear. The mechanism of complexing reactions is studied. Molar extinction coefficients and stability constants are calculated.

1988-01-01

86

Piperidine adsorption on two different silver electrodes: A combined surface enhanced Raman spectroscopy and density functional theory study

We report the results of characterization of nonlinear refractive index of the composite material produced by MeV Ag ion implantation of LiNbO{sub 3} crystal (z-cut). The material after implantation exhibited a linear optical absorption spectrum with the surface plasmon peak near 430 nm attributed to the colloidal silver nanoclusters. Heat treatment of the material at 500 C caused a shift of the absorption peak to 550 nm. The nonlinear refractive index of the sample after heat treatment was measured in the region of the absorption peak with the Z-scan technique using a tunable picosecond laser source (4.5 ps pulse width). The experimental data were compared against the reference sample made of MeV Cu implanted silica with the absorption peak in the same region. The nonlinear index of the Ag implanted LiNbO{sub 3} sample produced at five times less fluence is on average two times greater than that of the reference. (orig.) 20 refs.

1998-05-01

87

Photochemistry on surfaces. 2. Intermolecular electron transfer on colloidal alumina-coated silica particles

The surface enhanced Raman scattering (SERS) spectra of piperidine in silver colloid solution, on roughened silver electrode and on roughened silver electrode modified with silver nanoparticles were studied, and the high-quality SERS spectra of piperidine on roughened silver electrode modified with silver nanoparticles were obtained for the first time. Surface selection rules derived from the EM enhancement model were employed to deduce piperidine orientations on the different surfaces. On the basis of this, two models of piperidine adsorbed on the surface of the silver nanoparticles were built, and DFT-B3PW91/LanL2dz was applied to calculate the Raman frequencies. It proves that, at higher potential values, the piperidine is perpendicularly standing on the roughened silver electrode surface though its lone-electron pair, but in silver colloid solution and on the silver nanoparticles modified silver electrode the piperidine molecular lies flat ...

2007-10-15

88

Experience with abdominal gamma imaging in patients with bleeding of the lower digestive tube

Reductive quenching of two photoexcited ruthenium(II) complexes by an anionic electron donor, 2,2{prime}-azinobis(3-ethyl-benzothiazoline-6-sulfonate) (ABTS{sup 2{minus}}), in aqueous solution was examined by laser flash photolysis before and after adding positively charged colloidal (250-{angstrom} diameter) alumina-coated silica particles. The kinetics and quantum yields of electron transfer with an anionic sensitizer, RuL{sub 3}{sup 4{minus}} (L = bathophenanthroline disulfonate), and a cationic one, Ru(bpy){sub 3}{sup 2+} (bpy = 2,2{prime}-bipyridine), were compared. Coadsorption of ABTS{sup 2{minus}} and RuL{sub 3}{sup 4{minus}} by the particles greatly enhanced the rate of quenching such that only the reaction occurring on the surfaces of the particles was observed. Electron transfer from ABTS{sup 2{minus}} to RuL{sub 3}{sup 4-*} occurred by a static (nondiffusional) process, and the quenching efficiency was maximal when there was close to monolayer coverage ...

1989-02-23

89

Solution-based characterization of surface-enhanced Raman response of single scattering centers

This study concerns our experiences with abdominal gamma imaging using Tc-99m colloid and with abdominal angiography using Tc-99m-pyrophosphate labelled erythrocytes ''in vivo'' based on the modified technique described by Callahan. The dynamic or perfusion phase was first performed, then the static phase during which for the first two hours scans were taken every 15 minutes and thereafter every 4-6 hours. The routine image corresponds to the first, although it was necessary at times to take oblique projections. The study was felt to be accomplished after 48 hours upon observing no extravasation of radioactive material in the abdominal region, or upon detecting a bleeding site. The investigation was performed on 11 patients, 8 having positive scans of abdominal extravasation, later confirmed in 6 by endoscopy and by surgery. In 2, the presence of salmonelosis was shown by laboratory analysis. Endoscopy and angiography XR are both invasor methods. Various authors ...

1985-04-25

90

Radiation vulcanization of natural rubber latex with polyfunctional monomers. 2

We demonstrate the rapid optical characterization of large numbers of individual metal nanoparticles freely diffusing in colloidal solution by confocal laser spectroscopy. We find that hollow gold nanospheres and solid silver nanoparticles linked with a bifunctional ligand, both designed nanostructures, exhibit significantly higher monodispersity in their Rayleigh and Raman scattering response than randomly aggregated gold and silver nanoparticles. We show that measurements of rotational diffusion timescales allow sizing of particles significantly more reliably than can be obtained using translational diffusion timescales.

2008-03-06

91

Radiation vulcanization of natural rubber latex with polyfunctional monomers

Natural rubber latexes were vulcanized by ..gamma..-rays with two polyfunctional monomers, neopentylglycol diacrylate (A-NPG) and dimethacrylate (NPG). In comparison with A-NPG, NPG was more soluble in rubber particles, but it was less effective as an accelerating agent for the vulcanization because of the smaller rate of polymerization. On the other hand, the colloidal stability of the latex containing A-NPG was low because it was localized on the surface of rubber particles due to its poor solubility to the particles. The solubility of A-NPG was improved by adding A-NPG with solvents. The maximum tensile strength of the irradiated latex film was 350 kg/cm/sup 2/ at 3 Mrad.

1984-01-01

92

Programmed Assembly of Quantum-Dot Arrays on DNA Templates: Hardware for Quantum Computing?

Natural rubber latexes were vulcanized by #gamma#-rays with two polyfunctional monomers, neopentylglycol diacrylate (A-NPG) and dimethacrylate (NPG). In comparison with A-NPG, NPG was more soluble in rubber particles, but it was less effective as an accelerating agent for the vulcanization because of the smaller rate of polymerization. On the other hand, the colloidal stability of the latex containing A-NPG was low because it was localized on the surface of rubber particles due to its poor solubility to the particles. The solubility of A-NPG was improved by adding A-NPG with solvents. The maximum tensile strength of the irradiated latex film was 350 kg/cm"2 at 3 Mrad. (author).

93

High current implantation of negative copper ions into silica glasses

This paper reports progress in the fabrication and characterization of an array of 1nm-scale colloidal particles (i.e., quantum-dot array) that can be operated to execute nontrivial and innovative computations, possibly including quantum logic. We discuss the actual fabrication of 2-nm metal clusters as an example of possible quantum dot implementation. Innovative and unconventional paradigms underlie the different stages of this work. For example, regular array geometry is achieved by directing appropriately derivatized metal clusters to preselected locations along a stretched strand of an engineered DNA sequence.

2001-03-23

94

Fractal dimensionality of polymer networks formed by photopolymerization in a liquid crystal medium

High-current implantation of Cu{sup {minus}} ions into silica glasses has been demonstrated using mA-class negative ion beams at 60 keV. Negative ion implantation has an advantage to alleviate specimen charging for insulating substrates and has attained high dose rates, up to 260 {micro}A/cm{sup 2}. Spherical Cu colloids form in the silica glasses without additional thermal annealing. Optical absorption and reflection of the implanted specimens vary with the current density, even at a fixed dose level. A beam-induced surface plasma may affect the high current implantation.

1997-12-01

95

Synthesis of colloidal silver iron oxide nanoparticles--study of their optical and magnetic behavior.

Fractal dimensional analysis was employed to obtain a quantitative measure of the morphology of polymer networks formed by UV irradiation induced polymerization of photo-reactive mesogenic monomers dissolved in a liquid crystal host medium. The fractal dimensions obtained, may be interpreted by polymer network growth following a percolation-like model for monomer concentrations well below the solubility limit. On passing the solubility limit, the polymerization process changes from a (radical chain) solution polymerization to a dispersion polymerization, with fractal dimensions decreasing and suggesting a cluster-cluster aggregation process for monomer concentrations above the solubility limit, similar to the aggregation of colloidal particles.

2002-10-21

96

{sigma}-Hyperon production at COSY-TOF

Silver iron oxide nanoparticles of fairly small size (average diameter approximately 1 nm) with narrow size distribution have been synthesized by the interaction of colloidal beta- Fe2O3 and silver nanoparticles. The surface morphology and size of these particles have been analyzed by using atomic force microscopy (AFM), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). Their structural analysis has been carried out by employing x-ray diffraction (XRD), selected-area electron diffraction (SAED), optical and infrared (IR) spectroscopic techniques. The ageing of these particles exhibits the formation of self-assembly, possibly involving weak supramolecular interactions between Ag(I)O4 and Fe(III)O4 species. These particles display the onset of absorption in the near-infrared region and have higher absorption coefficient in the visible range compared to that of its precursors. Magnetic measurements reveal an interesting ...

2009-07-01

97

{lambda}-Hyperon production at COSY-TOF

No abstract prepared.

2002-03-01

98

Tracing cosmic star formation with EXIST

No abstract prepared.

2002-03-01

99

The TofRoot project - status and perspectives

No abstract prepared.

2004-01-01

100

THE STAR TIME PROJECTION CHAMBER.

No abstract prepared.

2002-03-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

101

Summary of COSY-13 results

No abstract prepared.

1999-05-10

102

Simulation of neutron detector efficiencies

No abstract prepared.

2002-03-01

103

Server Complexity, A Model for Managing Resources

No abstract prepared.

2002-03-01

104

Self-neutralized Ion Implantation into Insulators

No abstract prepared.

1999-12-01

105

Safe landing; Sicher landen

No abstract prepared.

1996-11-01

106

Reliability analysis of pipe whip impacts.

No abstract prepared.

2003-05-01

107

Reaction of ions in radiation chemistry

No abstract prepared.

2005-08-01

108

Quark-Hadron Duality in Mesons Electroproduction

No abstract prepared

1998-01-01

109

Proteome analysis of castor bean seeds

No abstract prepared.

2007-08-01

110

Production of {omega}-mesons at COSY-11

No abstract prepared.

2008-07-01

111

Predictive capability maturity model.

No abstract prepared.

2002-03-01

112

Predictive capability maturity model (PCMM).

No abstract prepared.

2006-03-01

113

PGA of boron- and hydrogen-bearing minerals

No abstract prepared.

2007-01-01

114

Oxygen enrichment of blast in cupola furnace

No abstract prepared

1998-01-01

115

Nuclear physics with a free electron laser

No abstract prepared.

2007-07-01

116

Natural analogue study of Oklo

No abstract prepared.

2002-07-01

117

NETWORK TRAFFIC CHARACTERIZATION OF TCP

No abstract prepared

1998-01-01

118

Molecular portraits of human breast tumours

No abstract prepared.

2000-06-01

119

Methodologies for multiphase reacting flow simulation.

No abstract prepared.

2000-08-01

120

Mechanoluminescence of g-irradiated salt

No abstract prepared.

1997-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

121

Measurement of longitudinal distribution of electron beam

No abstract prepared.

2002-07-01

122

LOUISIANA COASTAL WETLANDS MODELING

No abstract prepared.

2001-07-01

123

No abstract prepared.

1999-12-01

124

LCLS XTOD Fixed Mask

Is there a role for financial investors in carbon markets?

No abstract prepared.

2006-10-11

125

Irradiation effects on electronic functional materials

No abstract prepared.

2009-07-01

126

Investigation of Hypergolic Fuels with Hydrogen Peroxide

No abstract prepared

1998-01-01

127

Integrated chip-scale THz technology.

No abstract prepared.

2000-11-15

128

Identification of deuterons with high momenta at ANKE

No abstract prepared.

2009-11-01

129

Heavy-ion RBE and microdosimetric spectra

No abstract prepared.

2002-03-01

130

Handheld trace explosives detector.

No abstract prepared.

2000-09-01

131

Glycosaminoglycan synthesis by human corneal explants

No abstract prepared.

2006-11-01

132

Equivalence classes for gauge theories

No abstract prepared.

1998-07-01

133

Engineering Annual Summary 2003

No abstract prepared.

2008-07-01

134

Emerging laboratory biosecurity issues.

No abstract prepared.

2004-07-21

135

Direct measurement of flow in fractures.

No abstract prepared.

2005-04-01

136

Data-model integration is not magic

No abstract prepared.

2004-06-01

137

Data and facts; Daten und Fakten

No abstract prepared.

2005-03-01

138

Atmospheric Processing Platform (Presentation)

No abstract prepared.

2008-03-15

139

Accelerator parameters for gamma gamma colliders

No abstract prepared.

2008-04-01

140

A study of neutron transmutation doped germanium

No abstract prepared.

1995-02-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

141

A Software Quality Engineering Maturity Model

No abstract prepared

1998-01-01

142

2004 RERTR International Proceedings

No abstract prepared.

2009-05-08

143

VEHICLE OPERATION PLAN PREPARATION INFORMATION, RECORDING MEDIUM, AND VEHICLE OPERATION PLAN PREPARATION DEVICE

No abstract prepared.

2004-11-07

144

J-STORE (Japan)

Full Text Available

2007-11-22

145

Secondary fuel for power generation - preparation, technology, cost; Sekundaerbrennstoff zur energetischen Verwertung - Aufbereitung, Technik, Kosten

PLZT Ceramics Prepared from Conventional and Microwave Hydrothermal Powders

No abstract prepared.

2001-07-01

146

Impact of focussed ion beam (FIB) preparation on the potential structure of silicon semiconductors

PLZT Ceramics Prepared from Conventional and Microwave Hydrothermal Powders

1999-01-01

147

Technology of GaAs metal-oxide-semiconductor solar cells

No abstract prepared.

2006-07-01

148

Satellite power study (SPS) concept definition study (exhibit D). Volume 1: executive summary. Final report

The growth of an oxide interfacial layer was recently found to increase the open-circuit voltage (OCV) and efficiency by up to 60 per cent in GaAs metal-semiconductor solar cells. Details of oxidation techniques to provide the necessary oxide thickness and chemical structure and using ozone, water-vapor-saturated oxygen, or oxygen gas discharges are described, as well as apparent crystallographic orientation effects. Preliminary results of the oxide chemistry obtained from X-ray, photoelectron spectroscopy are given. Ratios of arsenic oxide to gallium oxide of unity or less seem to be preferable. Samples with the highest OVC predominantly have As(+3) in the arsenic oxide rather than As(+5). A major difficulty at this time is a reduction in OCV by 100-200 mV when the antireflection coating is vacuum deposited.

1977-01-01

149

Numerical analysis of melting/solidification phenomena using a moving boundary problem analysis method X-FEM

Efforts concentrated on updating of the Rockwell reference concept, definition of new system options, studies of special emphasis topics, further definition of the transportation system, and further program definition. The Rockwell reference satellite concept has a gallium arsenide (GaAs) solar cell array having flat concentrators with an effective concentration ratio of 1.83at end of life. Alternatives to this concept includes solid state power amplifiers or magnetrons for dc/RF conversion and multibandgap solar cells for solar to dc energy conversion. Two solid state concepts were studied. It was determined that the magnetron approach was the lowest mass and cost system.

1981-03-01

150

The NCRP wound model: development and application.

A numerical analysis method for melting/solidification phenomena has been developed to evaluate a feasibility of several candidate techniques in the nuclear fuel cycle. Our method is based on the eXtended Finite Element Method (X-FEM) which has been used for moving boundary problems. Key technique of the X-FEM is to incorporate signed distance function into finite element interpolation to represent a discontinuous gradient of the temperature at a moving solid-liquid interface. Construction of the finite element equation, the technique of quadrature and the method to solve the equation are reported here. The numerical solutions of the one-dimensional Stefan problem, solidification in a two-dimensional square corner and melting of pure gallium are compared to the exact solutions or to the experimental data. Through these analyses, validity of the newly developed numerical analysis method has been demonstrated. (author)

2008-06-01

151

Surface modification and characterization for dispersion stability of inorganic nanometer-scaled particles in liquid media

The US National Council on Radiation Protection and Measurements, in collaboration with the International Commission on Radiological Protection, has been developing a biokinetic and dosimetric model for radionuclide-contaminated wounds. The finalised model is described briefly in this paper, together with the scientific basis and application. The multicompartment model uses first-order linear biokinetics to describe the retention and clearance of a radionuclide deposited in a wound site using seven default retention categories. Examples using plutonium nitrate in colloidal form and uranium in metal fragments show the behaviour of the less soluble forms of radionuclides in wounds, in which long-term retention is predicted. Using uranium as an example, the wound model is coupled to a uranium International Commission on Radiological Protection systemic model to predict urinary excretion patterns for different physicochemical forms of uranium. The latter application is ...

2007-08-31

152

SUCCESSES AND EMERGING ISSUES IN SIMULATING THE MIXING BEHAVIOR OF LIQUID-PARTICLE NUCLEAR WASTE SLURRIES AT THE SAVANNAH RIVER SITE - 211B

Inorganic nanoparticles are indispensable for science and technology as materials, pigments and cosmetics products. Improving the dispersion stability of nanoparticles in various liquids is essential for those applications. In this review, we discuss why it is difficult to control the stability of nanoparticles in liquids. We also overview the role of surface interaction between nanoparticles in their dispersion and characterization, e.g. by colloid probe atomic force microscopy (CP-AFM). Two types of surface modification concepts, post-synthesis and in situ modification, were investigated in many previous studies. Here, we focus on post-synthesis modification using adsorption of various kinds of polymer dispersants and surfactants on the particle surface, as well as surface chemical reactions of silane coupling agents. We discuss CP-AFM as a technique to analyze the surface interaction between nanoparticles and the effect of surface modification on the ...

2010-08-01

153

Role of cetyltrimethylammonium bromide (cationic surfactant) on the tryptophan-MnO4- reaction

Aqueous radioactive high-level waste slurries are combined during processing steps that ultimately produce a stable borosilicate glass waste form. Chemically treated waste slurries are combined with each other and with glass frit-water slurries to produce the melter feed. Understanding the evolution of the rheological properties of the slurries is an important aspect of removing and treating the stored waste. To a first approximation, combinations of colloidal waste slurry with {approx}0.1-mm mean diameter glass frit or glass beads act in an analogous matter to slurries of spherical beads in Newtonian liquids. The non-Newtonian rheological properties of the waste slurries without frit, however, add complexity to the hydrodynamic analysis. The use of shear rate dependent apparent viscosities with the modified Einstein equation was used to model the rheological properties of aqueous frit-waste slurries.

2009-09-02

154

British Library Electronic Table of Contents (United Kingdom)

Upon addition of permanganate to a solution of tryptophan (Trp), yellow-brown color species appears within the time of mixing of tryptophan in absence and presence of cetyltrimethylammonium bromide (CTAB), which was stable for some days. Spectroscopic and kinetic evidences suggest the formation of water-soluble colloidal MnO2 as the most stable reduction product of MnO4-. Carbon dioxide and ammonia are not formed as the oxidation products. Carbon-carbon double bond of indole moiety of Trp is responsible for the fast reduction of permanganate. Cetyltrimethylammonium bromide catalyses the permanganate oxidation of Trp with a rate enhancement of ca. 200-fold. Sub- and postmicellar catalytic effect of CTAB ascribed to the association/incorporation/solubilization of both reactants (MnO4- and Tr...

2009-01-01

155

Micellized sequestered silver atoms and small silver clusters

Mechanical Properties of Nanocrystal Supercrystals

Pulse radiolysis was used to examine the nature of the silver species obtained when an aqueous solution containing sequestered Ag"+ ions was reduced by hydrated electrons in the presence of a surfactant macrocyclic crown ether, labeled L, and/or a maltoside surfactant. The initially formed product is the Ag"0(L) species which rapidly loses its ligand (half-life #<=#5 #mu#s) and reacts with another Ag"+(L) ion to form Ag_2"+(L). The latter species decays by a bimolecular process to form the Ag_4"2"+(L)_n species at a faster rate than its ligand free analogue. Ultimately, colloidal metallic silver, (Ag)_n, forms which is stabilized by the surfactant moieties. No long-term stability to the reduced monomolecular species could be obtained.

156

Enhanced antibacterial activity of bifunctional Fe3O4-Ag core-shell nanostructures

Colloidal nanocrystals attract significant interest due to their potential applications in electronic, magnetic, and optical devices. Nanocrystal supercrystals (NCSCs) are particularly appealing for their well ordered structure and homogeneity. The interactions between organic ligands that passivate the inorganic nanocrystal cores critically influence their self-organization into supercrystals, By investigating the mechanical properties of supercrystals, we can directly characterize the particle-particle interactions in a well-defined geometry, and gain insight into both the self-assembly process and the potential applications of nanocrystal supercrystals. Here we report nanoindentation studies of well ordered lead-sulfide (Pbs) nanocrystal supercrystals. Their modulus and hardness were found to be similar to soft polymers at 1.7 GPa and 70 MPa respectively and the fractures toughness was 39 KPa/m1/2, revealing the extremely brittle nature of these materials.

2009-12-30

157

British Library Electronic Table of Contents (United Kingdom)

We describe a simple one-pot thermal decomposition method for the production of a stable colloidal suspension of narrowly dispersed superparamagnetic Fe3O4-Ag core-shell nanostructures. These biocompatible nanostructures are highly toxic to microorganisms. Antimicrobial activity studies were carried out on both Gram negative (Escherichia coli and Proteus vulgaris) and Gram positive (Bacillus megaterium and Staphylococcus aureus) bacterial strains. Efforts have been made to understand the underlying molecular mechanism of such antibacterial actions. The effect of the core-shell nanostructures on Gram negative strains was found to be better than that observed for silver nanoparticles. The minimum inhibitory concentration (MIC) values of these nanostructures were found to be considerably lowe...

2009-01-01

158

"9"9"mTechnetium-heat damaged erythrocyte spleen scan

A Novel Domperidone Hydrogel: Preparation, Characterization, Pharmacokinetic, and Pharmacodynamic Properties

"9"9"mTechnetium -heat damaged erythrocyte were used as spleen scanning agents in 12 patients from July, 1985 to April, 1986. We used this scan to evaluate situs inversus, asplenia, accessory spleen, hypersplenism, splenic infarction, tumor staging and evaluation of therapy, especially when the "9"9"mTc-tin colloid scans were not definite for diagnosis. The techniques applied to these scans were in vivo/in vitro-labeling method and heating-method to damage the erythrocytes. Liver-to-spleen uptake ratios were increased upto 100:1 and interference from the left lobe of the liver was eliminated. These scans were helpful to evaluate the spleen. (Author).

159

{omega} meson production at the Time-Of-Flight spectrometer

The purpose of the present study was to prepare a novel domperidone hydrogel. The domperidone dispersion was prepared by the solvent evaporation method. The characteristics of domperidone dispersion...Full Text Available

2011-01-01

160

Zinc-air battery technology: Combination of mechanical and electrical recharge

No abstract prepared.

2002-03-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

161

X-ray production yield in standardized thick target PIXE

No abstract prepared.

2000-07-01

162

Wavepro : a new approach to the design of data processing work flows.

No abstract prepared.

2003-07-01

163

WATER AND MAGMA CAN MIX - A HISTORY OF THE CONCEPTS OF HYDROVOLCANISM

No abstract prepared.

2010-07-01

164

VO{sub 2}(B) as a cathode material for lithium battery

No abstract prepared.

2000-09-01

165

Track reconstruction in the hexagonal drift chamber at COSY-11

No abstract prepared.

2002-07-01

166

Theory of the spiral grooved thrust bearing with liquid or gas lubricant

No abstract prepared.

2002-03-01

167

The study on the methods of environmental monitoring using NAA

No abstract prepared.

2003-07-01

168

The devise of the neutron camera for convenient to confirm a sample position

No abstract prepared

1998-01-01

169

The Quality Characteristics of Beef Jerky prepared with Various Spices

No abstract prepared.

2000-10-01

170

The PISA experiment-spallation products identified by Bragg curve spectroscopy

Full Text Available

2004-10-01

171

The Lancashire coalfield, 1945-1972: the politics of industrial change

No abstract prepared.

2004-07-01

172

Testing of the high current implantator of nitrogen ions

No abstract prepared.

2001-06-01

173

Synthetic and bioengineered products in nuclear medicine and drug delivery

No abstract prepared

1999-10-01

174

Supragiottic laryngeal tumors: comparison of MSCT with surgery and histology

No abstract prepared.

1999-07-01

175

Study of quantum chemical calculation of actinide compounds

No abstract prepared.

2002-02-01

176

Study of cement matrices for the immobilization of evaporator concentrates

No abstract prepared

1998-01-01

177

Studies of High-K Isomers at TRIUMF-ISAC

No abstract prepared

1998-12-31

178

Structure studies of acidic galactan from Pomacea sp

No abstract prepared.

2004-03-04

179

Structure and inflammatory activity of acidic galactan from Pomacea sp

No abstract prepared.

2006-07-01

180

Solid-state NMR on polymers and quantum computing NMR

No abstract prepared.

2008-07-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

181

Solid-state NMR Techniques for Chemistry Research

No abstract prepared.

2005-07-01

182

Size-Fractionated Plutonium Isotopes in a Coastal Environment

No abstract prepared.

2000-09-01

183

Single-Molecule Dynamics of Conformational Changes in Flavin Adenine Dinucleotide

No abstract prepared.

2000-09-22

184

Selectivity of lithium isotopes on semicrystalline titanium (IV) phosphate

No abstract prepared.

2005-01-12

185

SC04 network security wrap-up.

No abstract prepared.

2001-01-01

186

Revised plan : recommended investigation at Navarre, Kansas.

No abstract prepared.

2005-02-01

187

Reactor control system using knowledge information

No abstract prepared.

2006-01-31

188

Radiation cryochemistry of cubic ice; Kriochemia radiacyjna lodu kubicznego

No abstract prepared

1998-01-01

189

Production of reducing oligosaccharides from galactan biopolymers

No abstract prepared

1998-12-31

190

Present status of containment integrity tests at NUPEC

No abstract prepared.

2006-07-01

191

Preliminary calculations for MOX fuel critical experiments in TCA

No abstract prepared.

2000-11-01

192

Predictive maturity of computer models using functional and multivariate output

No abstract prepared.

2000-01-01

193

Power plants: future will be safe; Kraftwerke: Zukunft in Sicherheit

No abstract prepared.

2008-01-01

194

Ports close hauled; Haefen hart am Wind

No abstract prepared.

2006-08-15

195

Plasma nitriding of ASTM F138 biomaterial - corrosion study

No abstract prepared.

2010-11-15

196

Planning for an Integrated Program of Scientific Research on Global Environmental Change

No abstract prepared.

2006-07-01

197

Pipe whip transient analysis of the ignalina NPP.

No abstract prepared.

2003-07-08

198

Performance of the central calorimeter of the COSY-TOF detector

No abstract prepared.

2002-05-15

199

Pectins from medicinal plants and their anti-ulcer activity

No abstract prepared.

2002-03-01

200

PREPARATION METHOD OF POLYMER-SUPPORTED CHIRAL ZIRCONIUM CATALYST

No abstract prepared.

2008-07-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

201

J-STORE (Japan)

Full Text Available

2008-09-26

202

On the determination of the equilibrium melting temperature of polybutylene terephthalate (PBT)

On duality of the noncommutative supersymmetric Maxwell-Chern-Simons theory

No abstract prepared.

2004-07-01

203

Nuclear safety and international governance. Russia and Eastern Europe

No abstract prepared.

2008-07-01

204

New technologies for managing oil field wastes.

No abstract prepared

1999-06-01

205

Neutron activation analysis of ultra-trace elements. 2

No abstract prepared.

2000-10-25

206

Monitoring of the relative beam polarization at COSY-11

No abstract prepared

1998-01-01

207

Mobile Smart Meter; Mobile Smart Meter

No abstract prepared.

2002-03-01

208

Migration behavior of trace elements with geothermal sources

No abstract prepared.

2010-06-15

209

Microorganisms elimination in antiquity paper by gamma irradiation

No abstract prepared

1998-01-01

210

Metal dusting induced pitting in Alloy 800.

No abstract prepared.

2002-07-01

211

Mechanisms behind the rise and fall of sideflow at SIS energies

NO abstract prepared.

2005-01-01

212

Measurement of crack growth rate of magnesium alloy AZ31

No abstract prepared.

2002-07-01

213

MECHANICAL DESIGN OF THE SPALLATION NEUTRON SOURCE COUPLED CAVITY ACCELERATOR

No abstract prepared.

2005-07-01

214

Learning from Europe; Lernen von Europa

No abstract prepared.

2001-06-01

215

Large interaction of cytochrome-c with cardiolipin/DPPC vesicles by SAXS

No abstract prepared.

2010-09-15

216

LOS ALAMOS PLUTONIUM FACILITY WASTE MANAGEMENT SYSTEM

No abstract prepared.

2008-11-15

217

Kevlar and carbon composite body armor - analysis and testing.

No abstract prepared.

2000-01-01

218

Investigation of the a{sub 0}{sup +}(980) resonance at ANKE

No abstract prepared.

2005-07-01

219

International Workshop of the Physics of Compressible Turbulent Mixing

No abstract prepared.

2002-03-01

220

Influence of irradiation on thermally stimulated current in PEEK

No abstract prepared.

2001-11-28

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

221

Induction of self-compatible buckwheat by ion beams

No abstract prepared

1998-01-01

222

InP-quantum dots in AlGaInP

No abstract prepared.

2003-03-01

223

Implementation of a new data acquisition system at COSY-TOF

No abstract prepared.

2006-07-01

224

Hydrogen Systems Analysis, Education, and Outreach Activities

No abstract prepared.

2002-03-01

225

Heat transfer augmentation in channels with porous copper inserts.

No abstract prepared.

2000-02-02

226

Gluing Feynman diagrams in NDIM: insights into the three-point vertex

No abstract prepared.

1998-05-19

227

Geothermal Heat Pump Design Tool Benchmarking

No abstract prepared.

2008-07-01

228

Formation of Stable Chlorinated Hydrocarbons in Weathering Plant Material

No abstract prepared.

2000-08-01

229

Fly Ash Amendments Catalyze Soil Carbon Sequestration

No abstract prepared.

2005-08-22

230

First experiments with the Rossendorf Si-ball RoSiB

No abstract prepared.

2003-09-15

231

Final Report - Summary of Executive Policy Forum on Electricity Restructuring

No abstract prepared

1999-10-01

232

Fast Flux Test Facility (FFTF) Shutdown Activities

No abstract prepared.

2001-04-01

233

Fast Flux Test Facility (FFTF) Background & Status

No abstract prepared.

2001-06-01

234

Eta-nucleus final state interaction studies

No abstract prepared.

2001-06-01

235

Eta-nucleus bound state study and the detector ENSTAR

No abstract prepared.

2002-03-01

236

Estimation of the radiation damages of the Uppsala spectator detector

No abstract prepared.

2002-03-01

237

Epigenetic changes accompanying human mammary epithelial cell Immortalization

No abstract prepared.

2002-03-01

238

Electromagnetic excitations in nuclei: From photon scattering to photo-dissociation

No abstract prepared.

2000-10-03

239

Efficiency of the second scintillator plane of the ANKE forward detector

No abstract prepared.

2006-07-01

240

Determination of the ANKE forward detector MWPC efficiency

No abstract prepared.

2002-03-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

241

DENSITY ANOMALIES IN THIN LIQUID FILMS OF HYDRIDE FUNCTIONAL SILOXANES

No abstract prepared.

2002-03-01

242

Content and distribution of hydrogen in anodic alumina films

No abstract prepared.

2002-01-01

243

Conserved currents and dualities in a covariant phase-space dynamics

No abstract prepared

1998-01-01

244

Computer model improves real-time management of water quality

No abstract prepared.

2007-07-01

245

Complex geometry, duality and non-perturbative structures in superstring theory

No abstract prepared.

1999-07-21

246

Combinatorial Spray-Based Synthesis of PEM FC Electrocatalysts

No abstract prepared.

1998-07-01

247

Close-to-threshold {phi} production at COSY-11

No abstract prepared.

2003-11-02

248

Chemical solution deposition of PLZT films on base metal foils.

No abstract prepared.

2002-03-01

249

Characterization of crystalline structure of electrodeposited ZnO thin films

No abstract prepared.

2003-11-07

250

CATALYSTS FOR HIGH CETANE ETHERS AS DIESEL FUELS

No abstract prepared.

2010-07-01

251

Biological Surface-Active Substance

No abstract prepared.

1999-09-01

252

International Science & Technology Center (ISTC)

Development of biological preparation with surfactant activity

253

Biogas in the natural gas grid; Biogas im Erdgasnetz

Arabinogalactans isolated from the medicinal plant Maytenus ilicifolia

No abstract prepared.

2007-03-15

254

An X-ray and neutron reflectometry study of multilayers

No abstract prepared.

2006-07-01

255

Advanced Direct Liquefaction Concepts Program Phase II

No abstract prepared.

1998-09-01

256

Acidic heteroxylans from medicinal plants and their antiulcer activity

No abstract prepared.

2002-11-30

257

ASC HPEMS Xyce circuit simulator : linear solver technology.

No abstract prepared.

2008-07-01

258

A review of in-situ chemical oxidation and heterogeneity

No abstract prepared.

2004-06-01

259

A review of Monte Carlo criticality calculations - convergence, bias, statistics

No abstract prepared.

2003-02-03

260

A precision experiment to measure the {eta}-meson mass

No abstract prepared.

2008-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

261

A Technology Roadmap for Generation IV Nuclear Energy Systems

No abstract prepared.

2002-03-01

262

A Study on the Preparation of Tritium Luminous Compound

No abstract prepared.

2002-12-01

263

A Guide to Experimental Elementary Particle Physics Literature 1994-1998

Full Text Available

1972-12-01

264

14 MeV neutron irradiation effects on window materials

No abstract prepared.

1999-10-01

265

Preparation of carrier-free yttrium-88 from strontium target by solvent extraction

No abstract prepared

1998-01-01

266

Abrasion problems in coal preparation

... carrier-free isotopes chemical preparation gamma spectra isotope production

267

Humic substances in natural waters and their complexation with trace metals and radionuclides: a review. [129 references

Lining of fused cast basalt tiles is recommended for various pieces of equipment constituting a coal preparation plant.

1981-01-01

268

A Clinical Study on the Value of a Scoring System of the Scanning Images in Liver Cirrhosis

Dissolved humic substances (humic and fulvic acids) occur in surface waters and groundwaters in concentrations ranging from less than 1 mg(C)/L to more than 100 mg(C)/L. Humic substances are strong complexing agents for many trace metals in the environment and are also capable of forming stable soluble complexes or chelates with radionuclides. Concentrations of humic materials as low as 1 mg(C)/L can produce a detectable increase in the mobility of some actinide elements by forming soluble complexes that inhibit sorption of the radionuclides onto rock materials. The stability of trace metal- or radionuclide-organic complexes is commonly measured by an empirically determined conditional stability constant (K'), which is based on the ratio of complexed metal (radionuclide) in solution to the product concentration of uncomplexed metal and humic complexant. Larger values of stability constants indicate greater complex stability. The stability of radionuclide-organic complexes is ...

1985-07-01

269

Low-pH injection grout for deep repositories. Summary report from a co-operation project between NUMO (Japan), Posiva (Finland) and SKB (Sweden)

Although the radioisotope liver scan has primarily been of use in the detection of the intra-hepatic space occupying lesions, there has been an increasing awareness of its use in evaluation of liver function. In this study, the degree of hepatomegaly, changes in shape and mottling radiodensity on each lobe and splenic visualization in the liver scans done with colloidal radiogold were numerically expressed as scores under the arbitrary standard in 210 patients with liver cirrhosis. The clinical value of this scoring system was studied with special regards to the correlation between the radiogold hepatic uptake half time and conventional liver function tests. Following were the results; 1) The normal scan appeared in 6.7% of 210 patients with liver cirrhosis. 2) The colloidal radiogold hepatic uptake half time was abnormally and progressively prolonged in parallel to severity of hepatocellular dysfunction. The mean hepatic uptake half time in ...

1970-09-01

270

Self-assessment of current knowledge in nuclear medicine (second edition)

The use of standard cementitious material creates pulses of pH in the magnitude of 12-13 in the leachates and release alkalis. Such a high pH is detrimental and also unnecessarily complicates the safety analysis of the repository. As no reliable pH-plume models exist, the use of products giving a pH below 11 in the leachates facilitates the safety analysis. Also, according to current understanding, the use of low-pH cement (pH = 11) will not disturb the functioning of the bentonite, although limiting the amount of low-pH cement is recommended. A result of the project is that there are both low-pH cementitious material for grouting larger fractures (= 100 {mu}m) and non-cementitious material for grouting smaller fractures (< 100 {mu}m) that will, after further optimisation work, be recommended for grouting of deep repositories. This project concentrated on the technical development of properties for the low pH grouts. Long-term safety and environmental aspects and durability of ...

2005-06-01

271

Low concentration ratio solar array for low Earth orbit multi-100kW application. Volume 2: Drawings. Final Report

In this updated second edition, the order of contents of the textbook has been reorganized. It has been divided into main parts: Basic Science and Clinical Nuclear Medicine. Basic Science, Part I, encompasses basic physics, radiation protection, interaction of radiation with matter and radiation detection, imaging, nuclear pharmacy, and radiation biology. Part II, Clinical Nuclear Medicine, covers the central nervous system, bone, gastroenterology (liver/spleen), cardiovascular system, pulmonary system, genitourinary system, thyroid and endocrine systems, gallium studies, radioassay, hematology, and therapy. The total number of pages of the current edition is increased to 250 from the 213 of the first edition but there are fewer questions because those in the basic science area have been carefully selected to 60 of the original 98 questions. Compared with the previous edition, there are two advantages in the current one: (1) the addition of explanatory answers; and ...

1981-01-01

272

Low concentration ratio solar array for low Earth orbit multi-100 kW application. Volume 1: Design, analysis and development tests. Final Report

A preliminary design effort directed toward a low concentration ratio photovoltaic array system based on 1984 technology and capable of delivering multi-hundred kilowatts (300 kW to 100 kW range) in low Earth orbit is described. The array system consists of two or more array modules each capable of delivering between 113 kW to 175 kW using silicon solar cells or gallium arsenide solar cells, respectively. The array module deployed area is 1320 square meters and consists of 4356 pyramidal concentrator elements. The module, when stowed in the Space Shuttle's payload bay, has a stowage volume of a cube with 3.24 meters on a side. The concentrator elements are sized for a geometric concentration ratio (GCR) of six with an aperture area of 0.5 meters x 0.5 meters. Drawings for the preliminary design configuration and for the test hardware that was fabricated for design evaluation and test are provided.

1982-07-01

273

Generation of ammonia plasma using a helical antenna and nitridation of GaAs surface

A preliminary design effort directed toward a low concentration ratio photovoltaic array system capable of delivering multihundred kilowatts (300 kW to 1000 kW range) in low earth orbit is described. The array system consists of two or more array modules each capable of delivering between 113 kW to 175 kW using silicon solar cells or gallium arsenide solar cells, respectively. The array module deployed area is 1320 square meters and consists of 4356 pyramidal concentrator elements. The module, when stowed in the Space Shuttle's payload bay, has a stowage volume of a cube with 3.24 meters on a side. The concentrator elements are sized for a geometric concentration ratio (GCR) of six with an aperture area of .25 sq. m. The structural analysis and design trades leading to the baseline design are discussed. It describes the configuration, as well as optical, thermal and electrical performance analyses that support the design and overall performance estimates ...

1983-07-01

274

Flux pinning and critical currents in A-15 superconductors

Using the ammonia (NH3) plasma generated by a helical antenna surrounded by two magnetic coils, the transition of the discharge mode from low-density plasma to high-density one was observed. At the transition, the emission intensities from the H atoms and NH radicals especially increased in the optical emission spectroscopy, while the intensities of the other emission lines also increased abruptly. The nitridation of gallium arsenide (GaAs) surface was performed using the high-density NH3 plasma, and the properties of the nitrided surface layer were compared with those nitrided by high-density N2 plasma using the same apparatus. From the spectroscopic ellipsometry measurements, the thickness of the nitrided layer was estimated to be 16-18 nm, while that by N2 was 3-4 nm. From the Ga 3d spectra, the contamination with oxygen in the nitridation layer by NH3 plasma was less than that by N2 plasma.

2003-05-15

275

Fabrication of single nanofluidic channels in poly(methylmethacrylate) films via focused-ion beam milling for use as molecular gates

The relationship between processing, microstructure, and properties was studied for A-15 compounds in multifilamentary composites produced by solid-state diffusion and in thin-film samples produced by vapor deposition. Grain sizes of A-15 superconducting compounds were measured by transmission electron microscopy of multifilamentary composites reacted at various temperatures. Critical current densities at 4.2 K and fields up to 6 T were found to be similar for niobium-tin, vanadium-gallium, and vanadium-silicon of the same grain size. Study of the Cu-V-Si phase diagram led to the production of improved multifilamentary vanadium-silicon conductors. The effects of various alloying elements on A-15 layers produced by solid-state diffusion were studied. The most promising new observation was that tantalum can be incorporated into niobium-tin reaction layers, leading to an enhancement of critical currents at high fields. The critical temperature of vapor-deposited, ...

1978-02-01

276

Diffusion mechanism of implanted Be in GaAs

Focused-ion beam (FIB) milling provides rapid fabrication of individual cylindrical submicrometer channels with reproducible dimensions (#+-#5% diameters) through 8-#mu#m thick poly(methylmethacrylate) (PMMA) films. PMMA films are spincast on sacrificial Si carriers and sputter-coated with Au before the 30-kV gallium FIB milling process. By adding a trace amount of poly(ethyleneoxide) and poly(dimethylsiloxane) to the PMMA solution before casting, the films can be released for subsequent mounting in microfluidic devices to create hybrid microfluidic-nanofluidic multilevel architectures. In situ FIB sectioning demonstrates the smooth cylindrical surface within the pore. Placing a milled film in contact with an aqueous fluorescein solution fills the channel by capillary action, as verified by confocal fluorescence microscopy. Confocal fluorescence of dyed films reveals that the pores span the thickness of the PMMA film. Small arrays of channels with a defined number ...

2004-08-16

277

Transfer of elements into mother's milk; Transfer von Elementen in die Muttermilch

The transient enhanced diffusion of low and high dose implanted beryllium in undoped gallium arsenide during post-implant rapid thermal annealing in the temperature range of 700-900 C for 60-240 s has been studied and successfully simulated by the kick-out diffusion model, involving singly positively charged Be interstitials and doubly positively charged Ga self-interstitials. Using the ''plus one'' approach for Ga interstitial generation after implantation with the local Ga interstitial sink concept as well as the appropriate initial and boundary conditions for involved mobile species, and taking into account Fermi-level and built-in electric field effects, the obtained partial differential equations have been solved numerically by means of an explicit finite difference method. The thermal equilibrium concentrations and the diffusivities of Be and Ga interstitials, all as a function of temperature, have been deduced from the ...

2008-01-15

278

In vivo and in vitro evaluation of dota-lanreotide radiolabelled with gallium-67

This research project aimed to determine the factors for the transfer of the elements silver (Ag), cerium (Ce), cobalt (Co), chrome (Cr), gallium (Ga), lanthanum (La), molybdenum (Mo), niobium (Nb), radium (Ra), ruthenium (Ru), antimony (sb), thorium (Th), titanium (Ti) and uranium (U) from food into the mother's milk. This factors will be used as a basic to check and derive activity values for the contamination of food and for radiation protection at working places of suckling women. For this purpose 19 mothers collected samples daily (2-8 weeks), using the duplicate method, of all the food they consumed as well as of their milk. After microwave-assisted digestion the element contents were analysed by mass-spectroscopy with inductive coupled plasma (ICP-MS). The results of the mothers who participate for more than 5 weeks were used to make a time lapse between the intake and transfer of the elements in the mothers milk visible. (orig.) [German] Ziel ...

2000-08-01

279

Study on performance of colloidal mixtures consisted of stearic acid and Na{sub 2}HPO{sub 4}.12H{sub 2}O for use as phase change materials of thermal energy storage

One of the refinements of modern Nuclear Medicine is the capacity of providing dynamic and kinetics images of the administered radiopharmaceutical, reproducing its transport mechanism, action sites, receptor binding and excretion route. With the continues technological advances new radiopharmaceuticals have been developed in order to express higher specificity and with higher characters of affinity between receptor/complex. One radiopharmaceutical is formed by a reagent or bio molecule that has in its structure a radioisotope, that has the objectives of carrying it to the organs of affinity or to benign or malign tumoral process. Somatostatin inhibits the growing and proliferation of several tumoral cells. Somatostatin analogs bind to somatostatic receptors that are expressed in different kind of neoplasia DOTA-LANREOTIDE (DOTALAN) is an octapeptide analog to somatostatin. The interest of labeling the bio conjugate with gallium-67 in Nuclear Medicine comes from its ...

280

Silver nanoparticles directly formed on natural macroporous matrix and their anti-microbial activities

The thermal energy storage performance and phase change stability of mix phase change materials consisted of stearic acid and Na{sub 2}PO{sub 4}.12H{sub 2}O are studied by means of Fourier transformation infrared spectrum analyses (FTIR) and Differential Scanning Calorimetry (DSC). The specific heat capacity of mix materials is also determined experimentally. The results show that all absorption peaks of functional groups and chemical bonds of stearic acid still exist, which suggests that these crystal materials composed of stearic acid and Na{sub 2}PO{sub 4}.12H{sub 2}O have good phase change stability and chemical compatibility. Thus, disadvantages caused by the subcooling of Na{sub 2}PO{sub 4}.H{sub 2}O and the low specific heat capacity of stearic acid can be solved, it is speculated that complement each other on the basis of organic/inorganic characteristics in itself is carried out for these two component materials of the mixture. (author)

2010-07-15

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

281

Raman and SERS recognition of ?-carotene and haemoglobin fingerprints in human whole blood.

In this study, silver nanoparticles were formed on a natural macroporous matrix, the stem of rice-paper plant, by reducing Ag{sup +} in aqueous solution through in situ processing without using any other stabilizers. The pores of the matrix, with their size of about 100 {mu}m, were thought to act as reaction compartments for the nucleation and growth of silver nanoparticles, and the control of nucleation of silver crystal during the reduction reaction was found to be important to the successful formation of nanosized silver particles onto the matrix. The diameter and amount of resultant silver particles can be controlled by changing the reaction conditions. Under optimized conditions, the content of silver particles in the matrix can reach as high as 1.8 wt% with the particle diameters being kept below 100 nm. The anti-microbial activities in terms of minimum inhibitory concentration (MIC) for the silver nanoparticle composites against Escherichia coli and Candida albicans were assayed ...

2007-02-07

282

Prediction of monitoring data for 239Pu accidentally injected via wound site based on the proposed NCRP wound model.

The present work reports on Raman and Surface Enhanced Raman Scattering (SERS) vibrational fingerprints of ?-carotene and haemoglobin in fresh whole blood (i.e. right after blood test) with different laser excitations, i.e. visible (514 nm) and near-infrared (NIR, 785 nm). The use of colloidal silver nanoparticles significantly increases the Raman signal, thus providing a clear SERS spectrum of blood. The collected spectra have been examined and marker bands of ?-carotene and of the haem prosthetic group of haemoglobin have been found. In particular, the fundamental features of ?-carotene (514 nm excitation), blood proteins and haem molecules (785 nm excitation) were recognized and assigned. Moreover haemoglobin SERS signals can be identified and related with its oxygenation state (oxy-haemoglobin). The data reported show the prospects of Raman and SERS techniques to detect important bio-molecules in a whole blood sample with no pre-treatment. PMID:21622021

2011-03-26

283

Manipulation of inverted and direct opals by a focused ion beam scanning electron microscope (FIB SEM)

In response to the consultation from the National Council on Radiation Protection and Measurements (NCRP) to the International Commission on Radiological Protection (ICRP) committee 2, retention and excretion of 239Pu deposited at wound site were calculated by coupling together the proposed NCRP wound model and the current ICRP systemic model of Pu. The physicochemical forms considered were the soluble form categorized into 'Strong Retention', and the colloidal, particulate and fragmentary forms. The results are summarized as follows. If in soluble form, immediate medical intervention is needed to prevent uptake of radionuclides to body tissues, and prompt wound monitoring is essential for an accurate estimation of the initially deposited radioactivity. If in particulate form, a multi-component exponential equation leads to an overestimation of the absorption rate to blood because of significant lymph node drainage. The committed doses in the organs for direct ...

2007-06-07

284

Influence of several factors on the growth of selenium nanowires induced by silver nanoparticles

Focused ion beam (FIB) milling techniques are presented aiming at the manipulation of both tin dioxide (SnO_2) inverted opals and polystyrene (PS) direct opals. Different SnO_2 opals are considered in order to estimate the regularity of their bulk after the production. A SnO_2 mesoporous monolith is FIB micromachined to make it suitable for optical applications. PS direct opals are structured by FIB milling at different scales. Ordered arrays of PS opals are modified by selectively removing a single sphere. In performing this task, we discuss the effects on the FIB milling due to the gas-assisted enhanced etching and to the binding of the nearest neighbours. Techniques to achieve imaging of PS opals in absence of a conductive coating are also brought up. Furthermore, isolated PS spheres are drilled with or without enhanced etching in order to produce controlled defects on them. The FIB-assisted manipulations we show may find potential applications in the field of photonic crystals, ...

2008-08-01

285

Entropy driven spontaneous formation of highly porous films from polymer-nanoparticle composites

This paper presents a study on the crystallization and growth mechanism of selenium nanowires induced by silver nanoparticles at ambient conditions with special reference to the effects of factors such as the shapes and size of silver nanoparticles, the induced reaction time, and the molar ratio of Ag{sup 0} to SeO{sub 3}{sup 2-} ions. The synthesis approach is conducted with no need of any stabilizers, and with no sonochemical process and/or templates. It is found that whether silver spherical particles or colloids can lead to the formation of nanowires with average diameter of 25 nm and lengths up to a few micrometers, and silver nanoplates lead to the formation of flat Se nanostructures. In particular, Au, Cu, Pt, and Pd particles cannot induce the growth of selenium nanowires in aqueous solution at room temperature. The results indicate that silver particles play a critical role in determining the growth of selenium nanowires. The lattice match between ...

2008-03-15

286

Electrochemical synthesis of nanostructured porous materials using liquid crystal and colloidal templates and their magnetic and optical properties

Nanoporous materials have become indispensable in many fields ranging from photonics, catalysis and semiconductor processing to biosensor infrastructure. Rapid and energy efficient process fabrication of these materials is, however, nontrivial. In this communication, we describe a simple method for the rapid fabrication of these materials from colloidal dispersions of Polymethyl Silsesquioxane nanoparticles. Nanoparticle-polymer composites above the decomposition temperature of the polymer are examined and the entropic gain experienced by the nanoparticles in this rubric is harnessed to fabricate novel highly porous films composed of nanoparticles. Optically smooth, hydrophobic films with low refractive indices (as low as 1.048) and high surface areas (as high as 1325 m2 g-1) have been achieved with this approach. In this communication we address the behavior of such systems that are both temperature and substrate surface energy dependent. The method is applicable, ...

2009-10-21

287

A note on tribological behaviour of #alpha#-sialon/steel couples under dry conditions

material, and that these magnetic properties vary systematically with the diameter of the spherical pores within the films. A new oscillation effect has been observed for the coercivity of macroporous Ni sub 8 sub 0 Fe sub 2 sub 0 film with different pore layer thickness. sphere templates, the resulting films show well-formed, regular, two- and three-dimensional macroporous networks consisting of spherical pores arranged in a highly ordered face centred cubic (fee) structure. The spherical voids are interconnected by a series of smaller windows that form an open porous structure embedded in the material framework. The diameter of the spherical pores can be precisely changed over the range from 200 to 1000 nm by changing the diameter of the latex spheres used to form the templates. The resulting macroporous material structures are robust, self-supported, dense, polycrystalline, uniform and free from filling defects and contamination or problems caused by shrinkage during processing. The ...

2002-01-01

288

FFTF operations procedures preparation guide. Revision 2

Advanced structural ceramics are presently used in several tribological applications, such as precision instrument bearings, automotive engine parts and cutting tools inserts. Design and selection of advanced ceramics for these applications require reliable data on the effects of temperature, load and environment on the tribological behaviour of these materials. In the present work, the friction and wear behaviour of colloidally processed and pressureless sintered sialon ceramics with phase (#alpha#) have been studied, aiming at increasing #alpha#-sialon in industrial applications as cutting tools. The friction and wear behaviour of sialon ceramics against steel DIN-Ck45K were investigated using a pin-on-disk tribometer under dry sliding conditions at room temperature, in order to eliminate the contribution of lubricant. The experiments were performed with a constant sliding velocity of 0.5 m/s and a contact stress of 2.85 MPa for 2000 m of sliding distance. ...

289

The Guide is intended to provide guidelines for the initial preparation of FFTF Operating Procedures. The Procedures Preparation Guide was developed from the plan presented and approved in the FFTF Reactor Plant Procedures Plan, PC-1, Revision 3.

1976-12-01

290

United ttsCos ur

The International Reference Preparation of Erythropoietin*

... floppy diskette message preparation - JANAP 128 and DD173 message preparation ... S including JANAP 128, DD173, and ACP 126. ...

2011-05-05

291

SOLID STATE RESEARCH OF THE APPLIED PHYSICS ...

The WHO Expert Committee on Biological Standardization authorized the National Institute for Medical Research to establish an International Reference Preparation of Erythropoietin on the basis of the...Full Text Available

1966-01-01

292

Preparation of covalently modified organic-inorganic composite nanoparticles and their interfacial electron transfer researches

... 10 TIN TELLURIDE Preparation of Tin Telluride Single Crystals ..... 12 ... TIN TELLURIDE Preparation of Tin Telluride Single Crystals ...

1962-07-16

293

Method for preparing thermally cleavable surfactants without deprotonation

Preparation of covalently modified organic-inorganic composite nanoparticles and their interfacial electron transfer researches

1998-01-01

294

Grit-Blast/Silane (GBS) Aluminum Surface Preparation for ...

The present invention describes surfactants of formula (I), ##STR00001## wherein R, R.sub.N, and m are defined herein, processes for their preparation, and methods for their decomposition.

2008-05-27

295

Exploration of Cold Extrusion for the Preparation of Enteric Minitablets of Isoniazid

... GRIT-BLAST/SILANE (GBS) ... GRIT-BLAST/SILANE (GBS) ALUMINUM SURFACE PREPARATION FOR STRUCTURAL ADHESIVE BONDING 5b. ...

2003-04-30

296

Defense.gov News Article: Task Force Prepares for Horn of ...

The objective of the present work was to formulate the enteric minitablets of isoniazid by cold extrusion method. The minitablets were prepared using isoniazid, hydroxylpropylmethylcellulose phthalate...Full Text Available

2008-05-01

297

Advanced Technological Education Program: 1999 Awards and Activities

... After the task force deploys, Joint Forces Command interacts ... and what needs tweaking to better prepare future headquarters staffs, Mungus ...

298

{sup 13}C-NMR signal enhancement by using parahydrogen induced polarization (PGIP) and appropriate pulse sequences

... By developing and disseminating educational materials and curricula, supporting the preparation and ... education, such as curriculum or educational materials development, faculty or teacher preparation ...

299

Wrap-around pressure mitigation using Kevlar safety netting in high explosive processing facilities

No abstract prepared.

2009-07-01

300

Vibration tests on nuclear power station stacks equipped with structural control oil dampers

No abstract prepared.

2008-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

301

Using evidence-based logic to design investigations for clay barrier systems

No abstract prepared.

2009-07-01

302

Usefulness of CT colonography in the preoperative evaluation of patients with distal occlusive colorectal carcinoma

No abstract prepared.

2002-07-01

303

Use of cozilat preparation as enteral nutrition for patients with late radiation injuries of colon

No abstract prepared.

2002-02-15

304

Ultraviolet dosimetry characterization from calcium doped borate glass-ceramic

Short note.

1988-06-28

305

Twin Cities Army Ammunition Plant soil vapor extraction system : a post-audit modeling study.

No abstract prepared.

2006-07-01

306

Transformation of sulfur-containing organometallic complexes by free radicals formed in radiolysis of organic compounds

No abstract prepared.

2000-11-27

307

The structure of the 4.743 MeV state in {sup 88}Sr

No abstract prepared

1998-01-01

308

The sputtering deposition - CdTe/(Si, Gaas, Al{sub 2}O{sub 3})

No abstract prepared

1999-05-01

309

The progression from ionic to covalent bonding in disordered systems as studied by using neutron diffraction

No abstract prepared

1996-12-31

310

The non-equivalence between non-Abelian self-dual and Yang-Mills-Chern-Simons models

No abstract prepared

1998-12-31

311

The interaction zone of a {gamma}{gamma} collider at TESLA; Die Wechselwirkungszone eines {gamma}{gamma}-Colliders bei TESLA

No abstract prepared.

2008-07-01

312

The human melanocyte: A model system to study the complexity of cellular aging and transformation in non-fibroblastic cells

No abstract prepared.

2003-07-01

313

The half-life of {sup 101}Mo and {sup 101}Tc {beta}{sup -} decay

No abstract prepared.

2002-05-23

314

The coordination chemistry of technetium and rhenium and applications to nuclear medicine. Final report

No abstract prepared.

2008-07-01

315

The Structures and Optical Spectra of Hydrated Transplutonium Ions in Solid State and in Solution

No abstract prepared.

1996-12-31

316

Testing a passive revegetation approach for restoring coastal plain depression wetlands

No abstract prepared.

2007-06-01

317

Temporal Fluctuations of Fluorescence Energy Transfer between TwoDyes Conjugated to a Single Protein

No abstract prepared.

2006-01-01

318

TEMPERATURE-DEPENDENT DIELECTRIC MEASUREMENTS OF POLYACRYLONITRILE FIBERS DURING AIR OXIDATION (Paper)

No abstract prepared.

1999-01-04

319

Synthesis and structure of the (tetrahydroxy)oligosiloxane [(tBuO)3SiOSi(OH)2]2O

No abstract prepared.

2004-01-26

320

Study on the ageing process of the proportional counters; Badanie mechanizmu starzenia licznikow proporcjonalnych

No abstract prepared.

2000-01-25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

321

Study of the Form Factor of the Proton in the Timelike Region for Large Momentum Transfers

No abstract prepared

1998-12-31

322

Study of nuclear fusion materials making use of ion irradiation and ESR microscope

No abstract prepared.

2001-01-01

323

Studies of {eta} production in proton proton collisions with the time of flight spectrometer

No abstract prepared

1998-01-01

324

Structure beyond Bragg : study of V{sub 2}O{sub 5} nanotubes.

No abstract prepared.

2002-03-01

325

Steam turbines for biomass power plants; Dampfturbinen fuer Biomasse-Kraftwerke

No abstract prepared.

2004-02-01

326

Status of the analysis of the (vector)pp {yields} pp{gamma} reaction channel

No abstract prepared.

2003-11-01

327

Stability of the ClO dimer; Stabilitaet des ClO-Dimers

No abstract prepared.

2002-03-01

328

Spent fuel sabotage aerosol ratio test program:status update, November 2004.

No abstract prepared.

2006-07-01

329

Spent fuel sabotage aerosol ratio test program : progress & status, May 2004.

No abstract prepared.

2004-11-01

330

Spent fuel sabotage aerosol ratio program : status, May 2005.

No abstract prepared.

2004-05-01

331

Speciation of metals in medicinal plants under different stress condition by HPLC-ICP-MS

No abstract prepared.

2005-05-01

332

Small Angle Neutron Scattering and Calorimetric Studies of Large Unilamellar Vesicles of the Phospholipid Dipalmitoylphosphatidylcholine

No abstract prepared.

2005-07-01

333

Slide Rule for Rapid Response Estimation of Radiological Dose from Criticality Accidents

No abstract prepared.

1999-03-01

334

Singlet-to-triplet ratio in the deuteron breakup reaction pd{yields}pnp at 585 MeV

No abstract prepared.

1999-06-03

335

Shortwave transport in the cloudy atmosphere by anomalous/levy diffusion: New diagnostics using Forte Data

No abstract prepared.

2002-03-01

336

Short-term radon concentration measurements in Dwellings in the metropolitan region of Belo Horizonte, Brazil

No abstract prepared.

2000-10-01

337

Search for magnetic rotation in {sup 202}Pb and {sup 203}Pb

No abstract prepared.

2010-07-01

338

Search for a quasi-bound {eta}-{sup 3}He state with the COSY-TOF spectrometer

No abstract prepared.

2000-07-24

339

SYNCHROTRON X-RAY DIFFRACTION STUDY OF THE STRUCTURE AND DEHYDRATION BEHAVIOR OF TODOROKITE

No abstract prepared.

2002-03-01

340

STRUCTURAL CHARACTERIZATION OF THIN HYDROXYPROPYLCELLULOSE FILMS. X-RAY REFLECTIVITY STUDIES

No abstract prepared.

2003-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

341

SODIUM HEAT PIPE MODULE TEST FOR SAFE-30 REACTOR PROTOTYPE

No abstract prepared.

2004-01-01

342

SAXS studies of the injection molding effects on the nanostructure of polyesters. I. Polybutylene terephthalate (Pbt)

No abstract prepared.

2000-10-01

343

Rupture of anomalous composite particles prepared by seeded emulsion polymerization in aging period

No abstract prepared.

2004-07-01

344

Relationship between HF permittivity and microscopic fluid distribution in clayey geo-materials

Not Available

1980-07-01

345

Reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion

No abstract prepared.

2002-07-01

346

Radionuclide X-ray fluorescence method of determination of toxic metal content in environment objects

No abstract prepared.

2009-06-01

347

Radiative processes as a condensation phenomenon and the physical meaning of deformed canonical structures

No abstract prepared.

2004-07-01

348

Radiation processing used in forestry in Thailand

No abstract prepared.

2008-07-01

349

RESPONSE TO THE CHALLENGES OF TECHNOLOGICAL CHANGE ON A SAFEGUARDS EQUIPMENT SUPPORT ORGANIZATION: DESIGN OF A PERFORMANCE-BASED TRAINING PROGRAM.

A summary is presented of research being carried out in Thailand on the preparation of irradiation-impregnated wood.

1981-01-01

350

Quality Assurance in Safeguards: Indonesian Document Control and Records Management System

No abstract prepared.

2000-07-16

351

Pulsations in the compression chamber, a potential cause of damage?; Pulsationen im Verdichtungsraum - eine potentielle Schadensursache?

No abstract prepared.

2010-07-01

352

Protein-protein interactions and structural analysis of citrus proteins involved in transcriptional control during citrus canker disease

No abstract prepared.

2005-05-01

353

Properties of Polyacrylonitrile/Single Wall Carbon Nanotube Composite Films Prepared in Nitric Acid

No abstract prepared.

2010-07-01

354

Production and mechanical properties of some Fe-based metallic glass wires

Full Text Available

2005-06-01

355

Proceedings of the North Atlantic Submarine Canyons Workshop : February 7-9, 1989 / prepared for the Minerals ...

No abstract prepared.

2002-07-01

356

Preparation, characterization and photocatalytic activity of the neodymium-doped TiO2 hollow spheres

Language: English ...

357

Preparation of the Nano Cobalt Powder by Wet Chemical Reduction Method

Not Available

2010-10-01

358

Preparation of Porous Mullite Composites through Recycling of Coal Fly Ash

Full Text Available

2011-06-01

359

Preparation of Polymer-modified Mortars with Recycled PET and Their Sound Absorption Characteristics

Full Text Available

2010-03-01

360

Preparation of Poly (acrylonitrile)/Poly (pyrrole) Composite and Its Mechanical Properties

Full Text Available

2010-09-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

361

Preparation of Activated Carbon Fiber-Ceramic Composites and Its Physical Properties

Full Text Available

1990-06-01

362

Preparation and Physicochemical Properties of Chitosan from Red Crab Waste-Shell

Full Text Available

1997-01-01

363

Plasma nitriding of ASTM F138 stainless steel at different pressures

Full Text Available

2001-03-01

364

Phytochemical study of Tynanthus fasciculatus (Bignoniaceae); Estudo fitoquimico de Tynanthus fasciculatus (Bignoniaceae)

No abstract prepared.

2009-07-01

365

Phenomenological analysis of K{sup +}-meson production in proton-nucleus collisions

No abstract prepared.

2005-07-01

366

PV Conversion Technologies; Session: OPV, Sensitized, Seed Funds (Presentation)

No abstract prepared.

2002-03-01

367

PROPERTIES AND PERFORMANCE OF CEMENT-BASED GROUTS FOR GEOTHERMAL HEAT PUMP APPLICATIONS.

No abstract prepared.

2008-04-01

368

Optimized filtration enhances oil-injected compressors; Optimierte Filtration verbessert oeleingespritzte Kompressoren

No abstract prepared.

1999-09-30

369

Optimization of the spectator detector arrangement for the pn {yields} pn{eta}' measurements at COSY-11

No abstract prepared.

2009-09-14

370

Online monitoring of pollen - development of a novel technique and first results of field experiments

No abstract prepared.

2002-03-01

371

On the combination of two dimensional Sn transport calculation and Monte Carlo calculation

No abstract prepared.

2005-07-01

372

Oil-injected compressors for energy saving; Verlustarmes Schraubenprofil. Oeleingespritzte Kompressoren zum Energiesparen

No abstract prepared.

2001-01-01

373

Occult brain metastases in HER2-positive breast cancer patients: Frequency and response to radiotherapy

No abstract prepared.

2008-05-13

374

Obtainment of lanthanum oxide by fractionated precipitation method

No abstract prepared.

2007-10-15

375

Obsidian under fire: considering the role of raw material variation in obsidian hydration analysis

... ammonium compounds benzilic acid chemical preparation lanthanum oxides

1979-01-01

376

Novel Tetracycline Resistance Determinant Isolated from an Environmental Strain of Serratia marcescens

No abstract prepared.

2000-07-01

377

Novel Antidrugabuse Peptide

No abstract prepared.

2007-01-01

378

International Science & Technology Center (ISTC)

Natural Biologically Active HLDF6 Peptide as Potential Preparation for Correction of Different Drugabuse Forms

379

Nitrogen accumulation in clays: solid-solution equilibrium and risk of gas generation

New tissue equivalent bolus useful in preventing of infection and invironmental pollution for radiotherapy

No abstract prepared.

2002-07-01

380

New paradigm : controlling initiation phase is necessary for optimization of wire-array z-pinch performance.

No abstract prepared

1999-03-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

381

New applications for pumps without shaft seals; Neue Einsatzgebiete fuer wellendichtungslose Pumpen

No abstract prepared.

2008-08-01

382

NMR assignment of the cAMP-binding domain A of the PKA regulatory subunit

No abstract prepared.

2005-05-01

383

N=2 supersymmetric radiation damping in an external electromagnetic field, noncommutativity and duality

No abstract prepared.

2006-12-15

384

Multinuclear Magnetic Resonance and X-ray Crystallographic Investigation of Some Mixed Ligand Alkylisocynaide Platinum(Ii) Complexes

No abstract prepared.

2008-07-01

385

Multi Canister Overpack (MCO) Topical Report [SEC 1 and 2

No abstract prepared.

2005-08-01

386

Morphology and Properties of Polyacrylonitrile/Na-MMT Nanocomposites Prepared via in-situ Polymerization with Macroazoinitiator

No abstract prepared.

1999-12-16

387

Modernization concepts for older steam turbines. Economic advantages; Modernisierungskonzepte fuer aeltere Dampfturbinen. Wirtschaftliche Vorteile

Full Text Available

2006-06-01

388

Micro-Fabricated Thin-Film Fuel Cells for Portable Power Requirements

No abstract prepared.

2003-10-20

389

Mechanistic aspects of fracture and R-curve behavior in human cortical bone

No abstract prepared.

2002-03-21

390

Mechanical-biological waste treatment as an alternative to thermal processes; MBA-Konzepte als Alternative zur thermischen Abfallbehandlung

No abstract prepared.

2005-06-24

391

Measurement of W-Boson Helicity Fractions in Top-Quark Decays Using costheta*

No abstract prepared.

2001-09-01

392

Magnetic properties of single crystalline RE{sub 2}PdSi{sub 3} intermetallic compounds

No abstract prepared.

2008-11-01

393

MPIRSPT : a parallelized all-electron DFT program for lanthanide and actinide calculations.

No abstract prepared.

2005-07-01

394

METHOD FOR SYNTHESIZING DERIVATIVE, COMPOUND LIBRARY AND METHOD FOR PREPARING THE SAME AND METHOD FOR SCREENING

No abstract prepared.

2008-08-01

395

J-STORE (Japan)

Full Text Available

2006-04-28

396

MANAGING WASTE AT LOS ALAMOS NATIONAL LABORATORY'S PLUTONIUM FACILITIES

Luminosity determination at COSY-11 using the proton-deuteron elastic scattering

No abstract prepared.

2000-01-01

397

Lipid Compositions Changes of Seasoned Pork Prepared with Medicinal Plant Extracts During Storage

No abstract prepared.

2002-03-01

398

Laser Spectroscopy: Assessment of Research Needs for Laser Technologies Applied to Advanced Spectroscopic Methods

Full Text Available

2007-12-01

399

LLNL inductrack progress report - February 99 through November 99

No abstract prepared.

1990-05-01

400

Iron in cookies prepared with fortified flour

No abstract prepared.

2000-03-08

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

401

Investigations and development of gaseous radiation detectors; Badania i rozwoj konstrukcji gazowych detektorow promieniowania

... Italy) Istituto Superiore di Sanita (Italy) 207 p. ENVIRONMENTAL SCIENCES

2009-04-01

402

Investigation of the pp {yields} nK{sup +}{sigma}{sup +} reaction

No abstract prepared

1998-12-31

403

Introduction of air pollution abatement measures in Germany; Einfuehrung von Klimaschutzmassnahmen in Deutschland

No abstract prepared.

2002-03-01

404

Insight into the output of reverse-time migration: what do the amplitudes mean?

No abstract prepared

1998-12-31

405

Influence of neutron-core excitations on high-spin states in {sup 88}Sr

No abstract prepared.

2005-05-01

406

Induced deformation of the canonical structure and UV/IR duality in (1 + 1)D

No abstract prepared.

2001-04-01

407

Individually adapted examination protocols for reduction of radiation exposure in chest CT

No abstract prepared.

2008-07-01

408

In vitro evaluation of stent-graft prosthesis by contrast-enhanced MR angiography

No abstract prepared.

2002-02-01

409

Improved near surface seismic imaging by combining tomography and reverse time migration.

No abstract prepared.

2002-02-01

410

Identifying Contributing Degradation Phenomena in PEM Fuel Cell Membrane Electrode Assemblies Via Electron Microscopy

No abstract prepared.

2010-04-01

411

INTERRUPTED-GROWTH STUDIES OF THE SELF-ASSEMBLY OF INTRINSICALLY ACENTRIC SILOXANE-DERIVED MONOLAYERS

No abstract prepared.

2006-10-01

412

Hydromechanical response of jointed host granitic rock during excavation of the FEBEX tunnel.

No abstract prepared.

2003-01-01

413

Histological analysis of hyaluronic acid and decorin in solid subcutaneous walker 256 rat carcinoma

No abstract prepared.

2003-04-01

414

High-resolution infrared spectroscopy of {gamma}-ray irradiated solid parahydrogen

No abstract prepared.

1998-07-01

415

High-Performance SPICE Development Including an Analytical Transient Photocurrent BJT Model

No abstract prepared.

2002-09-01

416

High resolution line shapes of weak autoionizing resonances identified through fluorescence from the satellite states of Ar+

No abstract prepared.

2000-08-01

417

HIGH ORDER STATISTICAL SIGNATURES FROM SOURCE-DRIVEN MEASUREMENTS OF SUBCRITICAL FISSILE SYSTEMS

No abstract prepared.

1997-07-01

418

Ground-temperature measurements

No abstract prepared.

1998-04-01

419

Geothermal progress monitor. Special supplement: proceedings of the geothermal program review

Three papers are included. A separate abstract was prepared for each one. (MHR)

1981-01-01

420

Gas sensing properties of polyacrylonitrile/metal oxide nanofibrous mat prepared by electrospinning

Separate abstracts were prepared for individual papers. (MHR)

1982-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

421

GaAs/(ordered) GaInP2 Heterostructures under Pressure and HighMagnetic Fields

Full Text Available

2008-07-01

422

Fresh air for the whole industry; Frischer Wind auf breiter Front

No abstract prepared.

1998-09-01

423

Fixed constituents of Bauhinia acuruana Moric; Constituintes fixos de Bauhinia acuruana Moric

No abstract prepared.

2010-06-15

424

First-principles investigation of Co wires at Pt(111) step-edges

No abstract prepared.

2010-07-01

425

First results of {pi}{sup 0}-{eta} mixing angle measurement

No abstract prepared.

2006-07-01

426

FY2003 Laboratory Directed Research and Development Program Annual Report

No abstract prepared.

2002-03-01

427

FAST FLUX TEST FACILITY (FFTF) FINAL SAFETY ANALYSIS REPORT AMENDMENT 83

No abstract prepared.

2004-07-30

428

Extended sectors of utilization by an advanced engineering. Utilization of wind power; Erweiterte Einsatzgebiete durch moderne Technik. Windenergienutzung

No abstract prepared.

2003-11-20

429

Extended molecular dynamics studies on {sup 40}Ca + {sup 40}Ca at 35A MeV

No abstract prepared.

2010-07-01

430

Exploring changes in solar model physics to mitigate the solar abundance problem

No abstract prepared

1997-12-31

431

Enhanced ion charge states in vacuum arc plasmas using a 'current spike' method

No abstract prepared.

2008-01-01

432

Enhanced and multiplexed detection via a novel RCA-aptamer based sensing system

No abstract prepared.

1999-07-01

433

Energy loss of titanium and copper ions in thin foils of gold at energies above Bragg's peak

No abstract prepared.

2006-09-06

434

Energy dependence of the pp {yields} ppK{sup +}K{sup -} total cross section close to threshold

No abstract prepared.

2005-07-01

435

Elemental content determination in leaves and extracts of Casearia medicinal plant by neutron activation analysis

No abstract prepared.

2002-03-01

436

Element specific defect investigation on Mg-alloys with coincident Doppler broadening spectroscopy

No abstract prepared.

2005-07-01

437

Electrical property and structure of diamond like carbon films prepared by IBAD

No abstract prepared.

2006-07-01

438

Electric cars. A reality for Ireland. Partnership of the Irish Government, ESB and Renault-Nissan

Short communication.

1995-12-31

439

Effects of season and body condition score on lipid metabolism and oxidative status of periparturient dairy cows

No abstract prepared.

2010-05-31

440

Effects of extracts of medicinal plants in the parasitaemia of Trypanosoma cruzi and in the biodistribution of the technetium-{sup 99m}

No abstract prepared.

2005-07-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

441

Effects of Coulomb and kaon nuclear potentials on soft K{sup +} production from nuclei

No abstract prepared.

2008-10-15

442

Effect of the medicinal plant Echinacea purpurea on the bioavailability of the radiopharmaceutical {sup 99M}TC-sodium pertechnetate

No abstract prepared.

2002-03-01

443

Effect of outside air ventilation rate on volatile organic compound concentrations in a call center

No abstract prepared.

2008-10-15

444

Effect of equal channel angular pressing on the deformation behaviour of magnesium alloy AZ31 under uniaxial compression

No abstract prepared.

2003-04-01

445

Effect of Chemical Treatment of Teflon Powder on the Properties of Polyamide 66/Teflon Composites Prepared by Melt Mixing

No abstract prepared.

2006-07-01

446

ESR spectroscopy of intermediate products of water radiolysis; Spektroskopia EPR produktow posrednich radiolizy wody

Full Text Available

2011-06-01

447

ENHANCED CONTROL OF MERCURY BY WET FLUE GAS DESULFURIZATION SYSTEMS - SITE 1 RESULTS

No abstract prepared

1998-12-31

448

EM Wave Absorption Properties on Particle Size and Permeability of ferrite and Preparation Temperature in Absorbers for Mobile Phones

No abstract prepared.

1999-05-01

449

Dynamic simulation of a pipe whip restraint; Simulation der Dynamik einer Ausschlagsicherung fuer eine Rohrleitung

Full Text Available

2004-04-01

450

Domain Bridging Interactions. A Necessary Contribution to the Function and Structure of 'Escherichia coli' Aspartate Transcarbamoylase

No abstract prepared.

1999-07-01

451

Discontinuous Galerkin Finite Element Method applied to the 1-D Spherical Neutron Transport Equation

No abstract prepared.

2001-01-01

452

Diagnostic Analysis of Silicon Photovoltaic Modules after 20--Year Field Exposure

No abstract prepared.

2005-11-07

453

Development of chemical separation in gas phase for heavy actinide and trans-actinide elements

No abstract prepared.

2000-09-25

454

Development of a dual serial-parallel multiphase CFD code for application to industrial combustor/reactor systems.

No abstract prepared

1998-01-01

455

Determination of metals in medicinal plants and soil from Amazon area by neutron activation analysis and ICP-MS

No abstract prepared.

2000-05-16

456

Decomposition of tar in pyrolysis gas by partial oxidation and thermal cracking. Part 2

No abstract prepared.

2005-07-01

457

Decay studies of rare-earth isotopes produced in the proton-induced fission

No abstract prepared

1998-12-31

458

DISCRETE SIMULATION OF REACTIVE AND NON-REACTIVE FLOW WITH LATTICE GAS AUTOMATA (LGA)

No abstract prepared

1998-01-01

459

Cryogenic heat pipe-target with aluminum condenser for the COSY-TOF experiment

No abstract prepared.

2000-01-01

460

Corrosion protection of onshore and offshore wind power systems; Korrosionsschutz von Windenergieanlagen Onshore and Offshore

No abstract prepared.

2002-03-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

461

Copper complexes of nonsteroidal anti-inflammatory drugs: An Opportunity yet to be realized

No abstract prepared.

2003-07-01

462

Contribution to the radiation preparation of wood-plastic materials. Pt. 7

No abstract prepared.

2002-01-01

463

Contribution to the radiation preparation of wood-plastic materials. Pt. 6

... odd nuclei organic compounds radiation effects radioisotopes synthesis

1974-01-01

464

Contribution to the radiation preparation of wood-plastic materials Pt. 3

... compounds polymers polyolefins polyvinyls radiation effects SYNTHESIS.

1974-01-01

465

Construction of REpower 5M; Errichtung der REpower 5M

... compounds plants radiation effects radioisotopes reaction kinetics trees

1974-01-01

466

Conduct of Operations Applicability Matrix for CMELS Low Hazard Facilities at LLNL Site 200

No abstract prepared.

2004-07-01

467

Conduct of Operations Applicability Matrix for CMELS Light Science and Industry and General Industry Facilities at LLNL Site 200

No abstract prepared.

2008-04-22

468

Computational analysis of candidate intron regulatory elements for tissue-specific alternative pre-mRNA splicing

No abstract prepared.

2008-04-22

469

Commentary on: Molecular basis for discriminating between normaland damaged bases by the human alkyladenine glycosylase, AAG

No abstract prepared.

2001-04-01

470

Climate change adaptation in coastal zones: Improving decision-making to support management strategies

No abstract prepared.

2001-03-05

471

Chemical and biological aspects of an arabinogalactan from the medicinal herb Phyllanthus niruri (quebra-pedra)

No abstract prepared.

2009-02-01

472

Charge station for electric cars; Ladestation versorgt Elektroautos einheitlich mit Strom

No abstract prepared.

2005-07-01

473

Central flat ventilation - an unfinished technology; Zentrale Wohnungslueftung - eine unfertige Technologie?

No abstract prepared.

2010-10-04

474

Building LAMMPS data files with car/mdf files and the msi2lmp utility.

No abstract prepared.

2003-10-01

475

Biocontrol Agents of Crops Diseases

No abstract prepared.

2010-03-01

476

International Science & Technology Center (ISTC)

Scale up of Technology for Production and Application of Rhizobacteria-Based Preparations as Biocontrol Agents of Crop Diseases

477

BONDING SELF-ASSEMBLED, COMPACT ORGANOPHOSPHONATE MONOLAYERS TO THE NATIVE OXIDE SURFACE OF SILICON

BIOGEOCHEMISTRY IN THE GLOBAL PARALLEL OCEAN PROGRAM; CONNECTIONS WITH CLIMATE-RELEVANT TRACE GASES

No abstract prepared.

2003-01-01

478

Aspects of in vitro fatigue in human cortical bone: Time and cycle dependent crack growth

No abstract prepared.

2000-09-19

479

Application of model-based method to measurement of radwaste from nuclear fuel processing

No abstract prepared.

2005-01-01

480

Antioxidant Characteristics and Preparation of Chocolate Added with Sochungryong-Tang (Oriental Medicinal Plants Extract)

No abstract prepared

1998-01-01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

481

Akt interacts directly with Smad3 to regulate the sensitivity to TGF-beta-induced apoptosis

Full Text Available

2005-10-01

482

Admissible representations and characters of the affine superalgebras osp(1,2) and sl(2/1)

No abstract prepared.

2004-04-12

483

Adaptation to climate change in coastal zones: An analysis of the interventions to safeguard Venice and its lagoon

No abstract prepared.

1998-07-01

484

Absence of magnetic ordering in a heavy fermion superconductor UBe{sub 13}

No abstract prepared.

2009-02-01

485

A scissors-like state on top of the quadrupole vibrational state in {sup 88}Sr

No abstract prepared

1999-02-01

486

A scissors-like excitation on top of the quadrupole vibrational state in {sup 88}Sr

No abstract prepared.

2001-04-01

487

A numerical analysis of reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion

No abstract prepared.

2001-07-01

488

A Green's Function Method for Treating Compton Frequency Redistribution

No abstract prepared.

2009-05-01

489

3D Multispecies Nonlinear Perturbative Particle Simulations of Collective Instabilities in Intense Particle Beams

No abstract prepared.

2004-09-10

490

2004 Rock Deformation Gordon Conference - August 8-12, 2004

No abstract prepared.

2000-01-21

491

'Seaflow Energy from the sea; 'Seaflow' Energie aus dem Meer

No abstract prepared.

2004-08-08

492

'Blue sky upon the Lausitz'; 'Blauer Himmel ueber der Lausitz'

No abstract prepared.

2004-03-01

493

A final report for: Gallium arsenide P-I-N detectors for high-sensitivity imaging of thermal neutrons

No abstract prepared.

2007-07-15

494

Vacancy ordering and oxygen dynamics in oxide ion conducting La1-xSrxGa1-xMgxO3-x ceramics: 71Ga, 25Mg and 17O NMR

This SBIR Phase I developed neutron detectors made from gallium arsenide (GaAs) p-type/ intrinsic/n-type (P-I-N) diodes grown by metalorganic chemical vapor deposition (MOCVD) onto semi-insulating (S1) bulk GaAs wafers. A layer of isotonically enriched boron-10 evaporated onto the front surface serves to convert incoming neutrons into lithium ions and a 1.47 MeV alpha particle which creates electron-hole pairs that are detected by the GaAs diode. Various thicknesses of ''intrinsic'' (I) undoped GaAs were tested, as was use of a back-surface field (BSF) formed from a layer of Al{sub x}Ga{sub 1-x}As. Schottky-barrier diodes formed from the same structures without the p+ GaAs top layer were tested as a comparison. After mesa etching and application of contacts, devices were tested in visible light before application of the boron coating. Internal quantum efficiency (IQE) of the best diode near the GaAs bandedge is over 90%. The ...

1999-04-01

495

Schottky barrier and homojunction gallium arsenide solar cells

The oxygen vacancies distribution in the rigid lattice and the thermally activated motion of oxygen atoms are studied in La1-xSrxGa1-xMgxO3-x (x=0.00; 0.05; 0.10; 0.15 and 0.20) compounds. For that 71Ga, 25Mg and 17O NMR was performed from 100 K up to 670 K, and ion conductivity measurements were carried out up to 1273 K. The comparison of the electric field gradients at the Ga- and Mg-sites evidences that oxygen vacancies appear exclusively near gallium cations as a species trapped below room temperature in local clusters, GaO5/2-#square#-GaO5/2. These clusters decay at higher temperature into mobile constituents of the structural octahedra Ga(O5/6#square#1/6)6/2. At the same time, the nearest octahedral oxygen environment of magnesium cations persists at different doping levels. The case of two adjacent vacant anion sites is found highly unlikely within the studied doping range. The thermally activated oxygen motion starts to develop above room temperature as is ...

2011-01-01

496

Mineralogy and geochemistry of the No. 6 Coal (Pennsylvanian) in the Junger Coalfield, Ordos Basin, China

New techniques were developed to construct Schottky barrier and homojunction solar cells on GaAs substrates. Schottky barrier metal-semiconductor solar cells were produced for the first time on p-type GaAs substrate using a sputter-deposition method to form the barrier. The sputter deposition of gold or gold/palladium is the key to the method since normal thermal evaporation of gold onto p-type GaAs produces ohmic contacts. The results of this investigation are consistent with the idea that sputter damage produces donor type surface states on GaAs. Barrier heights were measured for both p-type sputtered and n-type thermally evaporated diodes using current-voltage and capacitance-voltage methods. Deep-level transient spectroscopy was used to identify the trap center concentration and energy levels for both diodes in an effort to explain the relatively large dark current in the p-type sputtered diodes. Homojunction GaAs solar cells were fabricated using several techniques. One involved ...

1983-01-01

497

Fundamentals of focused ion beam nanostructural processing: below,at and above the surface

This paper discusses the mineralogy and geochemistry of the No. 6 Coal (Pennsylvanian) in the Junger Coalfield, Ordos Basin, China. The results show that the vitrinite reflectance (0.58%) is lowest and the proportions of inertinite and liptinite (37.4% and 7.1%, respectively) in the No. 6 Coal of the Junger Coalfield are highest among all of the Late Paleozoic coals in the Ordos Basin. The No. 6 Coal may be divided vertically into four sections based on their mineral compositions and elemental concentrations. A high boehmite content (mean 6.1%) was identified in the No. 6 Coal. The minerals associated with the boehmite in the coal include goyazite, rutile, zircon, and Pb-bearing minerals (galena, clausthalite, and selenio-galena). The boehmite is derived from weathered and oxidized bauxite in the weathered crust of the underlying Benxi Formation (Pennsylvanian). A high Pb-bearing mineral content of samples ZG6-2 and ZG6-3 is likely of hydrothermal origin. The No. 6 coal is enriched in ...

2006-04-03

498

Focused ion beam assisted three-dimensional rock imaging at submicron scale

This article considers the fundamentals of what happens in asolid when it is impacted with a medium energy gallium ion. The study ofthe ion/sample interaction at the nanometer scale is applicable to mostfocused ion beam (FIB) based work even if the FIB/sample interaction isonly a step in the process, e.g., micromachining or microelectronicdevice processing. Whereas the objective in other articles in this issueis to use the FIB tool to characterize a material or to machine a deviceor transmission electron microscopy (TEM) sample, the goal of the FIB inthis article is to have the FIB/sample interaction itself become theproduct. To that end, the FIB/sample interaction is considered in threecategories according to geometry: below, at, and above the surface.First, the FIB ions can penetrate the top atom layer(s) and interactbelow the surface. Ion implantation and ion damage on flat surfaces havebeen comprehensively examined; however, FIB applications require thefurther ...

2007-03-30

499

Advanced radiation detector development: Advanced semiconductor detector development: Development of a oom-temperature, gamma ray detector using gallium arsenide to develop an electrode detector

Computation of effective flow properties of fluids in porous media based on three dimensional (3D) pore structure information has become more successful in the last few years, due to both improvements in the input data and the network models. Computed X-ray microtomography has been successful in 3D pore imaging at micron scale, which is adequate for many sandstones. For other rocks of economic interest, such as chalk and diatomite, submicron resolution is needed in order to resolve the 3D-pore structure. To achieve submicron resolution, a new method of sample serial sectioning and imaging using Focused Ion Beam (FIB) technology has been developed and 3D pore images of the pore system for diatomite and chalk have been obtained. FIB was used in the milling of layers as wide as 50 micrometers and as thin as 100 nanometers by sputtering of atoms from the sample surface. The focused ion beam, consisting of gallium ions (Ga+) accelerated by potentials of up to 30 kV and ...

2003-05-09

500