Infrared Screening of Combinatorially Prepared Hydrogen Sorbing Metal Alloys

2003 ◽  
Vol 801 ◽  
Author(s):  
C. H. Olk

The investigation of many stoichiometric variations involving large numbers of combinations of elements offers a means to discover a hydride with optimal properties. We introduce the use of spatially resolved infrared imaging as a high throughput hydrogen storage candidate screening technique. Analysis is presented of a sample that consists of 16 separate Mg-Ni-Fe ternary pads and 32 Mg-Ni or Mg-Fe binary pads. Hydrogen sorption related emissivity changes observed indicate a substantial decrease in hydriding temperatures, which sensitively depends on composition.

Genome ◽  
2003 ◽  
Vol 46 (1) ◽  
pp. 51-58 ◽  
Author(s):  
A Segovia-Lerma ◽  
R G Cantrell ◽  
J M Conway ◽  
I M Ray

Improving commercial utilization of perennial Medicago collections requires developing approaches that can rapidly and accurately characterize genetic diversity among large numbers of populations. This study evaluated the potential of using amplified fragment length polymorphism (AFLP) DNA markers, in combination with DNA bulking over multiple genotypes, as a strategy for high-throughput characterization of genetic distances (D) among alfalfa (Medicago sativa L.) accessions. Bulked DNA templates from 30 genotypes within each of nine well-recognized germplasms (African, Chilean, Flemish, Indian, Ladak, Medicago sativa subsp. falcata, Medicago sativa subsp. varia, Peruvian, and Turkistan) were evaluated using 34 primer combinations. A total of 3754 fragments were identified, of which 1541 were polymorphic. The number of polymorphic fragments detected per primer combination ranged from 20 to 85. Pairwise D estimates among the nine germplasms ranged from 0.52 to 1.46 with M. sativa subsp. falcata being the most genetically dissimilar. Unweighted pair-group method arithmetic average (UPGMA) analysis of the marker data produced two main clusters, (i) M. sativa subsp. sativa and M. sativa subsp. varia, and (ii) M. sativa subsp. falcata. Cluster-analysis results and D estimates among the Chilean, Peruvian, Flemish, and M. sativa subsp. varia germplasms supported the hypothesis that Peruvian was more similar to original Spanish introductions into Central and South America than Chilean. Hierarchical arrangement of the nine germplasms was supported by their respective geographic, subspecific, and intersubspecific hybrid origins. Subsets of as few as seven highly informative primer pairs were identified that produced comparable D estimates and similar heirarchical arrangements compared with the complete dataset. The results indicate that use of primer-pair subsets for AFLP analysis of bulk DNA templates could serve as a high-throughput system for accurately characterizing genetic diversity among large numbers of alfalfa populations.Key words: Medicago sativa, DNA bulking, genetic distance.


2021 ◽  
Vol 12 ◽  
Author(s):  
Rubén Mollá-Albaladejo ◽  
Juan A. Sánchez-Alcañiz

Among individuals, behavioral differences result from the well-known interplay of nature and nurture. Minute differences in the genetic code can lead to differential gene expression and function, dramatically affecting developmental processes and adult behavior. Environmental factors, epigenetic modifications, and gene expression and function are responsible for generating stochastic behaviors. In the last decade, the advent of high-throughput sequencing has facilitated studying the genetic basis of behavior and individuality. We can now study the genomes of multiple individuals and infer which genetic variations might be responsible for the observed behavior. In addition, the development of high-throughput behavioral paradigms, where multiple isogenic animals can be analyzed in various environmental conditions, has again facilitated the study of the influence of genetic and environmental variations in animal personality. Mainly, Drosophila melanogaster has been the focus of a great effort to understand how inter-individual behavioral differences emerge. The possibility of using large numbers of animals, isogenic populations, and the possibility of modifying neuronal function has made it an ideal model to search for the origins of individuality. In the present review, we will focus on the recent findings that try to shed light on the emergence of individuality with a particular interest in D. melanogaster.


Author(s):  
Sunil Panthi ◽  
Ahmed M. Eltawil

The demand for data capacity has been growing, especially in the aviation and maritime industries and is expected to continue to grow in the foreseeable future. The satellite industry is moving to High Throughput Satellite (HTS) that are characterized by large numbers of small spot beams, frequency reuse, higher Equivalent Isotropically Radiated Power (EIRP) and higher Gain to Noise Temperature (G/T) to meet growing capacity demand. Multi-Port Amplifiers (MPA) increase the flexibility of HTS systems by allowing capacity to be allocated dynamically based on changing demand. This will allow capacity requirements to be planned based on the sum of the requirements across all beams rather than the peaks in each HTS beam. The authors propose a ground based solution that will maximize resource utilization of an HTS with an MPA and deliver the capacity dynamically based on demand. Maritime, commercial aviation, satellite based cellular backhaul, and disaster recovery services are the main applications that can benefit from the solution they propose. The authors' results show significant reduction in the overall capacity requirements because of the more efficient utilization of the satellite resources.


2009 ◽  
Vol 698 (2) ◽  
pp. L169-L173 ◽  
Author(s):  
J. A. Eisner ◽  
J. D. Monnier ◽  
P. Tuthill ◽  
S. Lacour

2012 ◽  
Vol 116 (38) ◽  
pp. 20246-20253 ◽  
Author(s):  
Jianjiang Hu ◽  
Alexander Pohl ◽  
Shumao Wang ◽  
Jörg Rothe ◽  
Maximilian Fichtner

2018 ◽  
Vol 5 (3) ◽  
pp. 379-393 ◽  
Author(s):  
A. I. Neto ◽  
P. A. Levkin ◽  
J. F. Mano

Microarrays are a technological breakthrough for high-throughput screening of large numbers of assays.


1997 ◽  
Vol 180 ◽  
pp. 249-249 ◽  
Author(s):  
S. Kimeswenger ◽  
F. Kerber ◽  
C. Kienel ◽  
M. Roth

Two ISO projects of scientists in Innsbruck deal with spatially resolved investigations of planetary nebulae in the infrared. Imaging in the NIR (1.0–2.4μm) is not possible with ISO and the spatial resolution and the limiting flux of the new surveys (DeNIS and 2MASS) will be insufficient for most of our objects.


2020 ◽  
Vol 832 ◽  
pp. 155026
Author(s):  
Chongsutthamani Sitthiwet ◽  
Praphatsorn Plerdsranoy ◽  
Palmarin Dansirima ◽  
Priew Eiamlamai ◽  
Oliver Utke ◽  
...  

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