An Overview Of The Media/Cartridge Concept For A High-Performance Optical Storage Subsystem

1983 ◽  
Author(s):  
William C. Hall ◽  
Peter N. Haugen ◽  
K. John Stahl
Keyword(s):  
High Performance ◽  
Optical Storage ◽  
The Media

Rare earth orthoniobate photochromics with self-activated upconversion emissions for high-performance optical storage applications

2021 ◽  
Vol 9 (39) ◽  
pp. 13841-13850
Author(s):  
Zhen Zhang ◽  
Lingju Guo ◽  
Haiqin Sun ◽  
Dengfeng Peng ◽  
Hua Zou ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Performance ◽  
Optical Storage ◽  
Upconversion Emissions ◽  
Storage Properties

Novel self-activated upconversion photochromics exhibit high-performance optical storage properties.

scholarly journals Artificial intelligence in paediatric radiology: Future opportunities

2021 ◽  
Vol 94 (1117) ◽  
pp. 20200975
Author(s):  
Natasha Davendralingam ◽  
Neil J Sebire ◽  
Owen J Arthurs ◽  
Susan C Shelmerdine
Keyword(s):  
Artificial Intelligence ◽  
High Performance ◽  
Early Stage ◽  
Image Interpretation ◽  
Paediatric Radiology ◽  
Radiology Service ◽  
Clinical Radiology ◽  
The Media ◽  
Performance Statistics ◽  
Image Pattern

Artificial intelligence (AI) has received widespread and growing interest in healthcare, as a method to save time, cost and improve efficiencies. The high-performance statistics and diagnostic accuracies reported by using AI algorithms (with respect to predefined reference standards), particularly from image pattern recognition studies, have resulted in extensive applications proposed for clinical radiology, especially for enhanced image interpretation. Whilst certain sub-speciality areas in radiology, such as those relating to cancer screening, have received wide-spread attention in the media and scientific community, children’s imaging has been hitherto neglected. In this article, we discuss a variety of possible ‘use cases’ in paediatric radiology from a patient pathway perspective where AI has either been implemented or shown early-stage feasibility, while also taking inspiration from the adult literature to propose potential areas for future development. We aim to demonstrate how a ‘future, enhanced paediatric radiology service’ could operate and to stimulate further discussion with avenues for research.

Magnetic Recording Head Materials

MRS Bulletin ◽  
1996 ◽  
Vol 21 (9) ◽  
pp. 23-27 ◽  
Author(s):  
James A. Brug ◽  
Thomas C. Anthony ◽  
Janice H. Nickel
Keyword(s):  
Magnetic Recording ◽  
High Performance ◽  
Disk Drive ◽  
Information Storage ◽  
Disk Drives ◽  
Recording Heads ◽  
Tremendous Amount ◽  
The Media ◽  
Materials Used ◽  
Magnetic Recording Heads

The materials used in magnetic recording heads have recently received a tremendous amount of attention. This has been the result of a fortunate set of circumstances. Ever-increasing demands for information storage, especially for graphics-intensive applications, have necessitated unprecedented increases in disk-drive areal densities. Combined with this are recent discoveries in the area of magnetoresistive materials, enabling the design and fabrication of much more sensitive recording heads. The end result is a flurry of activity that has come to dominate the field of magnetics. This article will explore choices for magnetoresistive read head materials, with an emphasis on the materials challenges.The recording heads that are used in high-performance disk drives typically consist of separate magnetoresistive read and inductive write heads (see Figure 1) where previously a single inductive head performed both functions. Separation of the two heads allows each to be optimized for their individual function, an essential factor in enabling disk drives to contain gigabytes of storage. The write head is the simpler of the two, consisting of a U-shaped ferromagnet surrounding a set of coils. The ends of the ferromagnet are the magnetic poles defining the write gap. When current passes through the coils, a field bridges the gap, setting the orientation of the magnetization in the media. Information is stored by changing the polarity of the current in order to write a pattern of magnetic domains in the media. The materials used in write poles will be reviewed in the section, Write Head Materials.

scholarly journals Binding Rather Than Metabolism May Explain the Interaction of Two Food-Grade Lactobacillus Strains with Zearalenone and Its Derivative ɑ́-Zearalenol

2002 ◽  
Vol 68 (7) ◽  
pp. 3545-3549 ◽  
Author(s):  
Hani El-Nezami ◽  
Nektaria Polychronaki ◽  
Seppo Salminen ◽  
Hannu Mykkänen
Keyword(s):  
High Performance ◽  
Degradation Products ◽  
Lactobacillus Rhamnosus ◽  
Considerable Proportion ◽  
Bacterial Concentration ◽  
New Approach ◽  
Food Grade ◽  
Bacterial Surface ◽  
Heat Treated ◽  
The Media

ABSTRACT The interaction between two Fusarium mycotoxins, zearalenone (ZEN) and its derivative ά-zearalenol (ά-ZOL), with two food-grade strains of Lactobacillus was investigated. The mycotoxins (2 μg ml−1) were incubated with either Lactobacillus rhamnosus strain GG or L. rhamnosus strain LC705. A considerable proportion (38 to 46%) of both toxins was recovered from the bacterial pellet, and no degradation products of ZEN and ά-ZOL were detected in the high-performance liquid chromatograms of the supernatant of the culturing media and the methanol extract of the pellet. Both heat-treated and acid-treated bacteria were capable of removing the toxins, indicating that binding, not metabolism, is the mechanism by which the toxins are removed from the media. Binding of ZEN or ά-ZOL by lyophilized L. rhamnosus GG and L. rhamnosus LC705 was a rapid reaction: approximately 55% of the toxins were bound instantly after mixing with the bacteria. Binding was dependent on the bacterial concentration, and coincubation of ZEN with ά-ZOL significantly affected the percentage of the toxin bound, indicating that these toxins may share the same binding site on the bacterial surface. These results can be exploited in developing a new approach for detoxification of mycotoxins from foods and feeds.

Aflatoxin B1 Binding Capacity of Autochthonous Strains of Lactic Acid Bacteria

2009 ◽  
Vol 72 (1) ◽  
pp. 189-192 ◽  
Author(s):  
MOHAMMAD R. FAZELI ◽  
M. HAJIMOHAMMADALI ◽  
AZAMOSSADAT MOSHKANI ◽  
NASRIN SAMADI ◽  
HOSSEIN JAMALIFAR ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Aflatoxin B1 ◽  
High Performance ◽  
Detrimental Effect ◽  
Binding Capacity ◽  
Toxin Complex ◽  
The Media ◽  
The Stability ◽  
Strain Dependent

Some foods are prone to contamination with aflatoxins, with detrimental effect on human health. Lactic acid bacteria have been reported to bind aflatoxins and remove them from foods and feeds. Reduction of aflatoxin B1 (AFB1) from the liquid media by the autochthonous lactic acid bacteria (Lactobacillus casei, Lactobacillus plantarum, and Lactobacillus fermentum) isolated from traditional Iranian sourdough and dairy products is reported in the current study. The effect of incubation time on the binding capacity of the strains to AFB1 was also investigated. Duplicates of individual bacteria with population equivalent to 2 × 1010 CFU/ml were incubated in the presence of AFB1 at 37°C for a period of 72 h, and the amounts of unbound AFB1 were quantitated by reverse-phase high-performance liquid chromatography. All the strains were capable of removal of AFB1, and the reduction of AFB1 ranged from 25 to 61% throughout the incubation period. Removal of AFB1 was a rapid process, with approximately 61 and 56% of the toxin taken instantly by L. fermentum and L. plantarum, respectively. Binding was of a reversible nature, and some of the bound AFB1 was released into the media by the repeated centrifugation and resuspension of the cell pellets. The stability of the bacteria–toxin complex was strain dependent, and L. casei was a stronger binder of AFB1 compared with the other bacteria. No toxin release was observed after 24 h. These findings tend to suggest that certain novel probiotic bacteria with high aflatoxin binding capacity could be selected for detoxification of foods.

Paralympic Movement in Malaysia: The Achievement of High-Performance Para Sports

2021 ◽  
Vol 6 (1) ◽  
pp. 86-96
Author(s):  
Nagoor Meera Bin Abdullah ◽  
Mohan Govindasamy ◽  
Megat Shahriman Zaharudin ◽  
Subramanian Raman Nair
Keyword(s):  
High Performance ◽  
International Competition ◽  
Athletes With Disabilities ◽  
The Media ◽  
The Government ◽  
Asian Youth ◽  
Paralympic Games

The article elaborates on the achievement of the Malaysian athletes with disabilities locally and also in international scenes. Malaysian athletes start to participate in international competition since 1962, and local games been organized back in 1982 with the introduction of the Paralympic Games. The article also illustrates the medal achievement where Malaysian contingent achieves a total of 1700 medals at the ASEAN Para Games from 2001-2017. In FESPIC and Asian Para Games, a total of 582 medals was won from the year 1982-2018. At the FESPIC and Asian Youth Para Games, a total of 189 medals won from the year 2003-2017. The highest achievement came from the Paralympic games as Malaysian won 11 medals in total from the year 1962-2016. More need to be done to establish para sports in Malaysia with the support of every parties including the government and the media.

scholarly journals Utilization of fumarate by sulfur-reducing bacteria Desulfuromonas sp.

2016 ◽  
Vol 24 (2) ◽  
Author(s):  
O. Сhayka ◽  
T. Peretjatko ◽  
S. Gudz ◽  
A. Halushka
Keyword(s):  
Hydrogen Sulfide ◽  
High Performance ◽  
Elemental Sulfur ◽  
Culture Liquid ◽  
Sodium Lactate ◽  
Electron Donors ◽  
Regulation Of Respiration ◽  
Donor And Acceptor ◽  
The Media ◽  
Reducing Bacteria

The main goal of the work was to study the utilization of fumarate by sulfur-reducing bacteria Desulfuromonas sp. under different growth conditions and accumulation of hydrogen sulfide by bacteria in the media with sulfur and different electron donors. Sulfur-reducing bacteria Desulfuromonas sp., isolated from soil in Yazivske sulfur deposit, were used in the reasearch. Bacteria were grown in the medium Postgate C without sulfates. The content of hydrogen sulfide was determined by formation of methylene blue. The content of organic acids (fumarate, succinate, lactate, acetate) was determined by high performance liquid chromatography (HPLC). The biomass of cells was determined by the photoelectrocolorymetry method using KFK-3. The highest level of accumulation of hydrogen sulfide by bacteria Desulfuromonas sp. was found in media with sodium lactate and sodium pyruvate. The maximal concentration of hydrogen sulfide was 1.9 mM. Maximal accumulation of biomass was observed in the media with malate, lactate and fumarate with the presence of elemental sulfur. Sulfur-reducing bacteria Desulfuromonas sp. are able to utilize fumarate as an electron donor and acceptor in the absence of elemental sulfur in the medium. After the incubation of Desulfuromonas sp. in the medium with fumarate, chromatographic analysis of culture liquid showed that fumarate is converted to succinate and small quantities of acetate The presence of acetate is, probably, due to the particularaties of the functioning of citric acid cycle in bacteria of the genus Desulfuromonas. Consequently, the results indicate that the fumarate serves as a donor and acceptor of electrons.The simultaneous introduction of two electron donors – fumarate and elemental sulfur – was accompanied by inhibition of sulfur reduction. After an additional source of carbon (sodium lactate) and electron acceptor (elemental sulfur) was added to the medium with fumarate a fivefold increase of sulfidogenic activity was observed. Thus, regulation of respiration in bacteria Desulfuromonas sp. is directed to the primary utilization of the most energetically favorable electron acceptors. 

Design And Evaluation Of The Disk-Cartridge Concept For A High Performance Optical Storage Subsystem

1983 ◽  
Author(s):  
Gary W. Collins ◽  
Hal A. Lunka ◽  
Dave W. Rickert ◽  
John Woods
Keyword(s):  
High Performance ◽  
Optical Storage
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