Evaluation of calcium-, carbon- and sulfur-based non-spectral interferences in high-power MIP-OES: comparison with ICP-OES

2019 ◽  
Vol 34 (8) ◽  
pp. 1611-1617 ◽  
Author(s):  
Raquel Serrano ◽  
Guillermo Grindlay ◽  
Luis Gras ◽  
Juan Mora
Keyword(s):  
High Power ◽  
Icp Oes ◽  
Spectral Interferences ◽  
Mip Oes ◽  
First Time

Common matrix-based non-spectral interferences are studied for the first time in high-power MIP-OES. The results are compared with those in ICP-OES.

Fleeing the Soviet Union, Dancing on the West Coast

Experiment ◽  
2014 ◽  
Vol 20 (1) ◽  
pp. 297-316
Author(s):  
Lorin Johnson ◽  
Donald Bradburn
Keyword(s):  
Soviet Union ◽  
Los Angeles ◽  
High Power ◽  
West Coast ◽  
Southern California ◽  
The West ◽  
The Arts ◽  
The Soviet Union ◽  
First Time

In the 1970s and 1980s, Los Angeles audiences saw Soviet defectors Mikhail Baryshnikov, Alexander Godunov, Natalia Makarova, and Rudolf Nureyev in the prime of their careers at the Hollywood Bowl, The Dorothy Chandler Pavilion and the Greek Theater. Dance photographer Donald Dale Bradburn, a local Southern California dancer describes his behind-the-scenes access to these dancers in this interview. Perfectly positioned as Dance Magazine’s Southern California correspondent, Bradburn offers a candid appraisal of the Southern California appeal for such high-power Russian artists as well as their impact on the arts of Los Angeles. An intimate view of Russian dancers practicing their craft on Los Angeles stages, Bradburn’s interview is illustrated by fourteen of his photographs, published for the first time in this issue of Experiment.

LD-pumped high-power continuous-wave Pr3+:YLF deep red lasers at 718.5 and 720.8 nm

Laser Physics ◽  
2021 ◽  
Vol 32 (2) ◽  
pp. 025801
Author(s):  
Xiangrui Liu ◽  
Zhuang Li ◽  
Chengkun Shi ◽  
Bo Xiao ◽  
Run Fang ◽  
...  
Keyword(s):  
Output Power ◽  
High Power ◽  
Slope Efficiency ◽  
Laser Emission ◽  
Continuous Wave ◽  
Optical Glass ◽  
Maximum Output Power ◽  
Glass Plate ◽  
Maximum Output ◽  
First Time

Abstract We demonstrated 22 W LD-pumped high-power continuous-wave (CW) deep red laser operations at 718.5 and 720.8 nm based on an a-cut Pr3+:YLF crystal. The output power of both polarized directions reached the watt-level without output power saturation. A single wavelength laser operated at 720.8 nm in the π-polarized direction was achieved, with a high output power of 4.5 W and high slope efficiency of approximately 41.5%. To the best of our knowledge, under LD-pumped conditions, the laser output power and slope efficiency are the highest at 721 nm. By using a compact optical glass plate as an intracavity etalon, we suppressed the π-polarized 720.8 nm laser emission. And σ-polarized single-wavelength laser emission at 718.5 nm was achieved, with a maximum output power of 1.45 W and a slope efficiency of approximately 17.8%. This is the first time that we have achieved the σ-polarized laser emission at 718.5 nm generated by Pr3+:YLF lasers.

Microwave-assisted ultraviolet digestion: an efficient method for the digestion of produced water from crude oil extraction and further metal determination

2017 ◽  
Vol 32 (12) ◽  
pp. 2439-2446 ◽  
Author(s):  
J. P. Souza ◽  
P. S. Barela ◽  
K. Kellermann ◽  
M. F. P. Santos ◽  
D. P. Moraes ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Crude Oil ◽  
Efficient Method ◽  
Produced Water ◽  
Oil Extraction ◽  
Icp Oes ◽  
Metal Determination ◽  
Microwave Assisted ◽  
First Time

Microwave coupled to ultraviolet radiation is proposed for the first time for produced water digestion allowing metal determination by ICP-OES.

High Power-Density 4H-SiC RF MOSFETs

2006 ◽  
Vol 527-529 ◽  
pp. 1277-1280 ◽  
Author(s):  
G. Gudjónsson ◽  
Fredrik Allerstam ◽  
H.Ö. Ólafsson ◽  
Per Åke Nilsson ◽  
Hans Hjelmgren ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Cutoff Frequency ◽  
Double Gate ◽  
High Power Density ◽  
Rf Power ◽  
Drain Voltage ◽  
Power Mosfets ◽  
First Time ◽  
Power Densities

We have made a 4H-SiC RF power MOSFETs with cutoff frequency up to 12 GHz, delivering RF power of 1.9 W/mm at 3 GHz. The transistors withstand 200 V drain voltage, are normally-off, and show no gate lag, which is often encountered in SiC MESFETs. The measured devices have a single drain finger and a double gate finger and a total gate width of 0.8 mm. To our knowledge this is the first time that power densities above 1 W/mm at 3 GHz are reported for SiC MOSFETs.

Application of Laser Remelting Treatments to Improve the Properties of Ti6Al4V Alloy

2012 ◽  
Vol 713 ◽  
pp. 25-30 ◽  
Author(s):  
M.R. Amaya-Vázquez ◽  
J.M. Sánchez-Amaya ◽  
Z. Boukha ◽  
K. El Amrani ◽  
Francisco Javier Botana
Keyword(s):  
Corrosion Resistance ◽  
High Power ◽  
Laser Processing ◽  
Shielding Gas ◽  
Laser Remelting ◽  
Medium Energy ◽  
Present Contribution ◽  
First Time ◽  
Power Diode ◽  
High Power Diode Laser

Ti6Al4V is the α-β alloy most employed in industry. The modification of its properties can be achieved with conventional heat treatments and/or with laser processing. Laser remelting (LR) has been applied to Ti6Al4V by other authors with excimer and Nd-YAG laser, employing pure argon as shielding gas to prevent risk of oxidation. In the present contribution, LR has been applied for the first time with a high power diode laser shielded with argon to improve the properties of Ti6Al4V. Results showed that remelted samples (with medium energy densities) have higher microhardness and better corrosion resistance than Ti6Al4V base metal.

Development of a new alluaudite-based cathode material with high power and long cyclability for application in Na ion batteries in real-life

2017 ◽  
Vol 5 (42) ◽  
pp. 22334-22340 ◽  
Author(s):  
Jongsoon Kim ◽  
Hyungsub Kim ◽  
Seongsu Lee ◽  
Seung-Taek Myung
Keyword(s):  
Cathode Material ◽  
Redox Potential ◽  
High Power ◽  
Real Life ◽  
Cycle Life ◽  
Great Power ◽  
Power Capability ◽  
First Time ◽  
High Redox Potential

Na2Fe1.96V0.96(PO4)3 (NFVP) that exhibits outstanding cycle life and great power capability with a high redox potential for the first time.

scholarly journals Sample preparation strategies for petroleum coke digestion and further cerium and lanthanum determination by DSN-ICP-OES

2018 ◽  
Vol 33 (8) ◽  
pp. 1284-1291 ◽  
Author(s):  
J. P. Souza ◽  
K. Kellermann ◽  
M. S. Camargo ◽  
D. P. Moraes ◽  
D. Pozebon ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Petroleum Coke ◽  
Icp Oes ◽  
First Time

Digestion of petroleum coke is proposed for the first time by MW-AD and MIC for La and Ce determination by DSN-ICP-OES.

scholarly journals Notes on African Chalcidoidea—V

1916 ◽  
Vol 7 (2) ◽  
pp. 123-132 ◽  
Author(s):  
James Waterston
Keyword(s):  
Sexual Dimorphism ◽  
High Power ◽  
Food Supply ◽  
Present Knowledge ◽  
Glossina Morsitans ◽  
Natural Conditions ◽  
Structural Peculiarity ◽  
Great Range ◽  
The Real ◽  
First Time

Eupelminus tarsatus, Waterst. (1916).Eupelminus tarsatus, Waterston, Bull. Ent. Res., vi, Feb. 1916, p. 389, figs. 7 and 8 ; Lamborn, ibid., vii, May 1916, p. 34.A series of both sexes of this parasite of Glossina morsitans enables me to describe the male for the first time and the female more fully. One of the striking features about this species, apart from its remarkable sexual dimorphism, is the great range in size which it exhibits. The females run from 3½ mm. to 5 mm. and the males from 1½ mm. to 2¼ mm., with a range in the alar expanse of 2¼ mm. to 3¾ mm. The larger female examples are invariably darker and more metallic in coloration. Dr. Lamborn is certainly right in correlating the smaller size of some of the parasites with a reduced food supply (l.c. p. 35). I cannot yet agree, however, that the parasitic status of E. tarsatus is definitely fixed by our present knowledge of its habits. Plainly the proportion of Mutilla-parasitised puparia supplied to the Eupelminus females was larger than could have occurred under natural conditions. Again, the factors, whatever they are, inducing Mutilla to oviposit in a particular puparium may be equally decisive for the female Eupelminus. If, for example, in two cases three Eupelminus punctures all close together could be seen with a high-power lens one might suggest that some structural peculiarity invited the attack. Nor, incidentally, is it legitimate to infer that because a puparium observed to be stung produced no Eupelminus the attack had failed. The presumption is that the attack had not been delivered, stinging and ovipositing being, in many cases, two separate processes. Many Chalcids plunge the ovipositor into ova, puparia, etc., and then, applying the mouth to the wound, suck up the contents which have been expelled. In other cases the first stinging observed is merely the narcotising and rendering antiseptic of the host, which precedes the real introduction of the ova. The parasitic status of Eupelminus can, in fact, be settled only by examination of puparia, collected under natural conditions, from which the Chalcids have been noted to emerge.

Unique perforated graphene derived from Bougainvillea flowers for high-power supercapacitors: a green approach

Nanoscale ◽  
2017 ◽  
Vol 9 (14) ◽  
pp. 4801-4809 ◽  
Author(s):  
Rajendra P. Panmand ◽  
Purnima Patil ◽  
Yogesh Sethi ◽  
Sunil R. Kadam ◽  
Milind V. Kulkarni ◽  
...  
Keyword(s):  
Surface Area ◽  
High Power ◽  
High Surface ◽  
High Surface Area ◽  
Single Step ◽  
Step Method ◽  
Green Approach ◽  
Template Free ◽  
First Time

Herein, we demonstrated a green approach for the synthesis of high surface area (850 m2 g−1) mesoporous perforated graphene (PG) from Bougainvillea flower for the first time using a template free single-step method.

scholarly journals Effect of Sonication Treatment and Maceration Time in the Extraction of Polysaccharide Compounds during Red Wine Vinification

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4452
Author(s):  
Leticia Martínez-Lapuente ◽  
Zenaida Guadalupe ◽  
Paula Pérez-Porras ◽  
Ana Belén Bautista-Ortín ◽  
Encarna Gómez-Plaza ◽  
...  
Keyword(s):  
High Power ◽  
Alcoholic Fermentation ◽  
Red Wine ◽  
Type Ii ◽  
Pectic Polysaccharides ◽  
The Us ◽  
Sonication Treatment ◽  
The Moment ◽  
First Time ◽  
Us Technology

The application of high-power ultrasounds (US) at 28 kHz to the crushed grapes and the use of different pomace contact times caused changes in the content and composition of monosaccharides and polysaccharides in the musts and wines. These differences were maintained from the moment of pressing (end of maceration) until the end of the alcoholic fermentation. The US increased the content of monosaccharides and polysaccharides in the musts by facilitating their extraction from the solid parts during maceration. The application of medium maceration time (3 days) to sonicated grapes led to an extraction of polysaccharides rich in arabinose and galactose, rhamnogalacturonan type II (RG-II) and mannoproteins (MP), similar to that observed in the control wines made with an extended maceration of 7 days (968.21 vs. 1029.45; 895.04 vs. 1700.50; 356.81 vs. 343.95, respectively). This fact was attributed to a higher extraction in the must during the sonication process and to an important release of pectic polysaccharides during the pressing of the sonicated pomace, which is reported here for the first time. Therefore, the US technology could be useful for increasing the polysaccharide content in the wines or for reducing the maceration time needed to achieve certain levels of wine polysaccharides.

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