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Microwave Design and Performance of PTB 10 V Circuits for the Programmable Josephson Voltage Standard

Microwave Design and Performance of PTB 10 V Circuits for the Programmable Josephson Voltage Standard

and more conventional 10 V Josephson voltage standard (JVS) systems operated between 70 and 75 GHz [2]. PJVSs are based on series arrays of overdamped Josephson junctions (JJs) divided into smaller independently biased subarrays. The overdamped Josephson junctions are externally or intrinsically shunted and exhibit a cur- rent-voltage characteristic (IVC) with a negligible hysteresis. In contrast to underdamped and therefore hyste- retic SIS (S = superconductor, I = insulator) junctions used for conventional JVS systems, overdamped Joseph- son junctions display single-valued Shapiro steps under microwave irradiation. Each of these constant voltage steps, including U = 0 , can be attributed to a definite dc bias current. This special property opens up new areas of application beyond simple dc metrology covered by the conventional JVS. Today, the PJVS constitutes, to- gether with the Josephson arbitrary waveform synthesizer (JAWS) based on pulse-driven Josephson junctions [3], the basis of modern ac voltage metrology. PJVS circuits representing the current state of technology are us- ing Nb x Si 1‒x barrier junctions. This junction type allows operating frequencies from 15 to 70 GHz by changing
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Digital Control in Tube Power Amplifiers

Digital Control in Tube Power Amplifiers

This device could be used if it was placed under a different supply reference. For example, the ground of the device could be set at -40 V and the positive terminal at -10 V. This would allow full voltage control over the needed range while keeping the device within voltage limits. The problem unfortunately is that the digital control signals from the microcontroller must also be isolated into the -40 V to -10 V reference. This would have to be done with opto-couplers or solid state relays; a very costly requirement in hardware which is not feasible compared to the other approaches listed.
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Comparative Evaluation of Sealing Ability and Osteogenic Potential of Conventional Glass Ionomer Cement and Glass Ionomer Cement Modified with Chitosan and Bioactive Glass: An In Vitro study

Comparative Evaluation of Sealing Ability and Osteogenic Potential of Conventional Glass Ionomer Cement and Glass Ionomer Cement Modified with Chitosan and Bioactive Glass: An In Vitro study

in vitro evaluations of GIC biocompatibility. 9,25,73 . This could be explained by the fact that the in vitro toxicity of GICs was due to a complex mechanism based on both ion release in particular, Aluminium and Fluoride ions and pH effects. Devlin et al. 25 (1998) stated that aluminum ions contributed to the in vitro toxicity of Ionomeric cements. Oliva et al. 61 (1996) stated the polyacid component (e-g. acrylic, maleic, tartaric and benzoic acids) can also create a decreased pH in the immediate environment, further contributing to a cytotoxic response. There was statistically significant increase in proliferative activity in Group II, III, IV and V than Group I (Conventional GIC) at 24, 48 & 72 hrs (p<0.05). GROUP II (GIC + 10 v/v% CH), Group III (GIC +50v/v% CH) and Group V (GIC + 30wt % BAG) showed higher proliferative activity than all groups with no significant difference between them.
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Comparison of two vitrification methods for cryopreservation of porcine embryos

Comparison of two vitrification methods for cryopreservation of porcine embryos

Protocol VS I. The embryos in perihatching de- velopmental stage were equilibrated in a culture medium H-MEMD with 10% v/v of glycerol (1.37M solution of glycerol in medium) for 10 minutes. Then they were placed in a vitrification medium for 1.5 min max. (the vitrification medium contained 50% v/v 2M sucrose in tridistilled water, 30% v/v of glycerol, and 20% v/v of foetal calf serum – FCS). Finally, the embryos were dropped with micropi- pe�e and stored in liquid nitrogen vapour. Embryos were thawed a�er the immersion of drop with embryo in a medium containing 0.8 M sucrose for 10 minutes.
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EFFECTIVE DATE: 10/28/10 REVISED DATE: 12/08/11, 10/25/12, 10/24/13, 10/23/14, 12/10/15 POLICY NUMBER: CATEGORY: Contract Clarification

EFFECTIVE DATE: 10/28/10 REVISED DATE: 12/08/11, 10/25/12, 10/24/13, 10/23/14, 12/10/15 POLICY NUMBER: CATEGORY: Contract Clarification

The literature related to gender reassignment surgery has numerous limitations (e.g., lack of controlled studies, evidence not collected prospectively, large number of patients lost to follow-up). However, the majority of patients in case series and cohort studies experienced successful outcomes in terms of subjective well-being, cosmesis and sexual function. The World Professional Association for Transgender Health or WPATH (formerly known as the Harry Benjamin International Gender Dysphoria Association) Standards of Care (SOC) for the Health of Transsexual, Transgender, and Gender Nonconforming People and the DSM V criteria are widely accepted as definitive documents in the area of gender dysphoria treatment. The SOC criteria have been adopted as the standard of care for the treatment of gender dysphoria, including hormone therapy and gender reassignment surgery.
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Paradise Lost: §10(b) after Morrison v National Australia Bank

Paradise Lost: §10(b) after Morrison v National Australia Bank

As to the domestic and foreign purchasers of ADRs on the NYSE, the court concluded that only the domestic purchasers could proceed with their claims in the US.&#[r]

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Short-term treatment with gamma interferon induces stable reversion of ras-transformed mouse fibroblasts.

Short-term treatment with gamma interferon induces stable reversion of ras-transformed mouse fibroblasts.

Clones IFN-4 and IFN-10 were used as recipients for the introduction of the v-mos or v-H-ras oncogene via transfec6307 Downloaded from http://jvi.asm.org/ on November 10, 2019 by guest P[r]

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Electropolymerization and Morphologic Characterization of á-Tetrathiophene

Electropolymerization and Morphologic Characterization of á-Tetrathiophene

Moreover, in recent decades the electrochemical preparation of conducting polymers on metallic substrates has been extensively studied [10-13] since this synthetic approach has several advantages, e.g. absence of a catalyst, direct addition of the doped polymer upon the surface of the electrode (particularly interesting for electrochemical application), easy control of the deposited coating thickness, and the possibility of in situ characterization of the polymer growth through electrochemical techniques [14].

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Effect of some novel medicinal plants and polyherbal formulation on stress induced alopecia

Effect of some novel medicinal plants and polyherbal formulation on stress induced alopecia

treatment. The distal one-half centimeter of the tail was clipped and a capillary pipette containing anticoagulants (EDTA for cell counting) was used to collect 20 µl samples from the bleeding surface. The withdrawn sample was used for cell counting and immediately after collection; the cut surface of the tail was cauterized with styptic powder. The collec- ted blood was transferred to sterile test tube containing anticoagulant at a ratio of 1: 10. The collected blood was used for hematological para- meters within two hours of collection. The hemato- logical parameters were determined with the help of pathology laboratories.
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Nummer 10/10 21 april 2010

Nummer 10/10 21 april 2010

Contains data concerning Netherlands patents which have been entered in the patent register under the Patents Act 1995.. Rubriek EP1.[r]

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ICD-10 Procedure Coding System (ICD-10-PCS) RLM.MD ICD-10-PCS

ICD-10 Procedure Coding System (ICD-10-PCS) RLM.MD ICD-10-PCS

Introduction of radioactive materials into the body for three dimensional display of images developed from the simultaneous capture, 180 degrees apart, of radioactive emissions.. Nuc[r]

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Softenr-10

Softenr-10

if there is an upper bound, n , on the number of times the loop body can be executed, then the following cases should also be applied. • Design a test in which the loop body is execut[r]

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LAB 10

LAB 10

Named after a flightless New Zealand bird, Weka is a set of machine learning algorithms that can be applied to a data set directly, Weka contains tools for data pre-processing, classifi[r]

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Chapter 10

Chapter 10

0x05 Write font address pointer with the register data. Table 10.13[r]

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10 pdf

10 pdf

Veamos algunos tipos de medidas que podríamos tomar en los ámbitos de prevención y detección de intrusos se mencionan herramientas útiles, algunas las examinaremos más adelante: • Passwo[r]

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Volume 10 - Article 10 | Pages 265–286

Volume 10 - Article 10 | Pages 265–286

For example, for Norway Lappegård (2001) finds that childlessness is almost as low among nurses and teachers with a university degree as among women with no education beyond secondary sc[r]

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Maryville, Sligo, OSV 0005520, 10/10/2017

Maryville, Sligo, OSV 0005520, 10/10/2017

Although the inspector observed risk assessments were completed to guide staff on the level of support these residents required, the inspector found gaps in these assessments, including:[r]

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10 Acetonyl 10 hy­droxy­phenanthren 9(10H) one

10 Acetonyl 10 hy­droxy­phenanthren 9(10H) one

Experimental . The data collection covered over a hemisphere of reciprocal space by a combination of three sets of exposures; each set had a different φ angle (0, 88 and 180°) for the crystal and each exposure of 10 s covered 0.3° in ω. The crystal-to-detector distance was 5 cm and the detector swing angle was -35°. Crystal decay was monitored by repeating fifty initial frames at the end of data collection and analysing the intensity of duplicate reflections, and was found to be negligible.

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TSGN#10(00)0627 TSGR#10(00)0600 TSGT#10(00)0230

TSGN#10(00)0627 TSGR#10(00)0600 TSGT#10(00)0230

(GSM); General Packet Radio Service (GPRS); Mobile stations; Access 13.67 Attachment requirements for Global System for Mobile communications. (GSM); Railways Band (R-GSM); Mobile Statio[r]

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Marches Agricoles N  7: Produits Vegetaux, 10 10 1972 = Agricultural Markets No  7: vegetable products, 10 10 1972

Marches Agricoles N 7: Produits Vegetaux, 10 10 1972 = Agricultural Markets No 7: vegetable products, 10 10 1972

2, 3 et 9 Pour la zone la plus ercédentaire de ra communauté, ir est fixé annuellemenü, avant le ler aott, pour Ia ca^mlEgns suorière débuüa^nt Ie rer juirlet tle lrann6e suirrente, Ie p[r]

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