The advancing state-of-the-art in second generation star trackers

2002 ◽  
Author(s):  
A. Read Eisenman ◽  
C.C. Liebe
Keyword(s):  
Second Generation ◽  
State Of The Art

Gasification of Biomass to Second Generation Biofuels: A Review

2011 ◽  
Author(s):  
Berta Matas Gu¨ell ◽  
Judit Sandquist ◽  
Lars So̸rum
Keyword(s):  
Second Generation ◽  
State Of The Art ◽  
High Sensitivity ◽  
Biomass Gasification ◽  
Heat Power ◽  
Operational Conditions ◽  
Second Generation Biofuels ◽  
Pros And Cons ◽  
Entrained Flow Gasifiers ◽  
Significant Attention

Biomass gasification has gained significant attention in the last couple of decades for the production of heat, power and second generation biofuels. Biomass gasification processes are highly complex due to the large number of reactions involved in the overall process as well as the high sensitivity of the process to changes in the operational conditions. This report reviews the state-of-the-art of biomass gasification by evaluating key process parameters such as gasifying agent, temperature, pressure, particle size, etc., for fluidized bed and entrained flow gasifiers. The pros and cons of each technology and the remaining bottlenecks are also addressed.

scholarly journals Review: Influence of the CYP450 Genetic Variation on the Treatment of Psychotic Disorders

2021 ◽  
Vol 10 (18) ◽  
pp. 4275
Author(s):  
Lorena Carrascal-Laso ◽  
María Isidoro-García ◽  
Ignacio Ramos-Gallego ◽  
Manuel A. Franco-Martín
Keyword(s):  
Second Generation ◽  
Psychotic Disorders ◽  
State Of The Art ◽  
Current Knowledge ◽  
Pharmacokinetic Parameters ◽  
Antipsychotic Treatment ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Second Generation Antipsychotics ◽  
Second Generation Antipsychotic

Second-generation antipsychotic metabolism is mainly carried out by the CYP450 superfamily, which is highly polymorphic. Therefore, knowing the influence of the different known CYP450 polymorphisms on antipsychotic plasmatic levels and, consequently, the biological effect could contribute to a deeper knowledge of interindividual antipsychotic treatment variability, prompting possible solutions. Considering this, this state of the art review aimed to summarize the current knowledge about the influence of the diverse characterized phenotypes on the metabolism of the most used second-generation antipsychotics. Forty studies describing different single nucleotide polymorphisms (SNPs) associated with the genes CYP1A2, CYP2D6, CYP3A4, CYP3A5, and ABCB1 and their influence on pharmacokinetics of olanzapine, clozapine, aripiprazole, risperidone, and quetiapine. Most of the authors concluded that although significant differences in the pharmacokinetic parameters between the different phenotypes could be observed, more thorough studies describing pharmacokinetic interactions and environmental conditions, among other variables, are needed to fully comprehend these pharmacogenetic interactions.

scholarly journals Lithium factories in the Galaxy: novae and AGB stars

2009 ◽  
Vol 5 (S268) ◽  
pp. 395-404 ◽  
Author(s):  
Francesca D'Antona ◽  
Paolo Ventura
Keyword(s):  
Globular Clusters ◽  
Second Generation ◽  
State Of The Art ◽  
The State ◽  
Asymptotic Giant Branch ◽  
Agb Stars ◽  
Preliminary Results ◽  
The Galaxy

AbstractWe review the state of the art in modelling lithium production, through the Cameron–Fowler mechanism, in two stellar sites: during nova explosions and in the envelopes of massive asymptotic giant branch (AGB) stars. We also show preliminary results concerning the computation of lithium yields from super–AGBs, and suggest that super–AGBs of metallicity close to solar may be the most important galactic lithium producers. Finally, we discuss how lithium abundances may help to understand the modalities of formation of the “second generation” stars in globular clusters.

Understanding outcomes and toxicological aspects of second generation metal-on-metal hip implants: a state-of-the-art review

2018 ◽  
Vol 48 (10) ◽  
pp. 839-887 ◽  
Author(s):  
Michael Kovochich ◽  
Brent L. Finley ◽  
Rachel Novick ◽  
Andrew D. Monnot ◽  
Ellen Donovan ◽  
...  
Keyword(s):  
Second Generation ◽  
State Of The Art ◽  
Hip Implants ◽  
Metal On Metal

scholarly journals Safety, tolerability, and risks associated with first- and second-generation antipsychotics: a state-of-the-art clinical review

2017 ◽  
Vol Volume 13 ◽  
pp. 757-777 ◽  
Author(s):  
Marco Solmi ◽  
Andrea Murru ◽  
Isabella Pacchiarotti ◽  
Juan Undurraga ◽  
Nicola Veronese ◽  
...  
Keyword(s):  
Clinical Review ◽  
Second Generation ◽  
State Of The Art ◽  
Second Generation Antipsychotics ◽  
First And Second Generation

scholarly journals Second generation from refugee backgrounds in Europe

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Milena Chimienti ◽  
Alice Bloch ◽  
Laurence Ossipow ◽  
Catherine Wihtol de Wenden
Keyword(s):  
Critical State ◽  
Second Generation ◽  
State Of The Art ◽  
Future Research ◽  
Special Issue ◽  
Second Generation Migrants

Abstract This introduction to the special issue provides a critical state-of-the-art of the literature on second-generation migrants which has hitherto subsumed the case of the children of refugees. It highlights the theoretical and methodological orientations taken by the literature and examines the main findings on the second generation’s social, educational, economic, cultural and inter-generational lives, before turning to the few findings available on conditions and performances of children of refugees. The editorial concludes by suggesting gaps in our knowledge and areas for future research.

Gasification of Biomass to Second Generation Biofuels: A Review

2012 ◽  
Vol 135 (1) ◽  
Author(s):  
Berta Matas Güell ◽  
Judit Sandquist ◽  
Lars Sørum
Keyword(s):  
Second Generation ◽  
State Of The Art ◽  
High Sensitivity ◽  
Biomass Gasification ◽  
Heat Power ◽  
Operational Conditions ◽  
Second Generation Biofuels ◽  
Pros And Cons ◽  
Entrained Flow Gasifiers ◽  
Significant Attention

Biomass gasification has gained significant attention in the last couple of decades for the production of heat, power, and second generation biofuels. Biomass gasification processes are highly complex due to the large number of reactions involved in the overall process as well as the high sensitivity of the process to changes in the operational conditions. This report reviews the state-of-the-art of biomass gasification by evaluating key process parameters such as gasifying agent, temperature, pressure, particle size, etc., for fluidized bed and entrained flow gasifiers. The pros and cons of each technology and the remaining bottlenecks are also addressed.

The Tension Leg Semisubmersible (TLS): The Hybrid TLP-Semisubmersible Floater With the Spar Response

2014 ◽  
Author(s):  
Alaa M. Mansour ◽  
Chunfa Wu ◽  
Dhiraj Kumar ◽  
Ricardo Zuccolo
Keyword(s):  
Second Generation ◽  
State Of The Art ◽  
Service Condition ◽  
Harsh Environment ◽  
Ballast Tank ◽  
Execution Plan ◽  
Four Corners ◽  
Close Proximity ◽  
Service Conditions

The Tension Leg Semisubmersible (TLS) floater is the second generation of the Free-Hanging Solid Ballast Semisubmersible (FHSB Semi) design. The FHSB Semi is the state-of-the-art design that maintains the advantages of the conventional Semisubmersibles and provides the motions of Spars. The FHSB Semi design is a conventional semisubmersible with an added feature of a Free-Hanging Solid Ballast tank (SBT) located deep below the hull keel level and connected through four groups of chains (on its four corners) to the semisubmersible hull. During the pre-service conditions, the chains are used to retract the SBT and maintain it at a close proximity to the hull keel to facilitate the transportation and installation operations. Once the semisubmersible is moored in-place, the chain system is operated to lower the SBT to its desired elevation below the hull keel and maintain it permanently connected to the semisubmersible hull during the in-service condition. The SBT provides substantial in-water weight and added mass that significantly reduce the platform response and maintains the chains in tension. In this paper, detailed description of the Tension Leg Semisubmersible (TLS) design as the second generation of the FHSB Semi is presented. The paper also includes discussions on the proposed project execution plan for the TLS covering the fabrication, transportation and installation as well as the added risks and risk mitigations associated with the new semisubmersible design and execution. A case study is introduced where a TLS is used as a dry tree host for a field located at 6,000 ft of water in the central Gulf of Mexico (GoM) harsh environment.

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