scholarly journals Modern concepts of conversion and storage of energy by dispersed materials absorption

2002 ◽  
Vol 34 (3) ◽  
pp. 247-259
Author(s):  
Dragica Minic-Popovic ◽  
M.V. Susic
Keyword(s):  
Research And Development ◽  
Metal Hydride ◽  
Development Stage ◽  
Ease Of Use ◽  
Glass Microsphere ◽  
Carbon Clusters ◽  
Storage Method ◽  
Advantages And Disadvantages ◽  
Storage Methods ◽  
And Storage

Once hydrogen is generated, the question asked: How do we store hydrogen? Hydrogen can be stored in a variety of ways, each with specific advantages and disadvantages. The overall criteria for choosing a storage method should be safety and ease of use. Described in this paper and listed below are different storage methods available today (compressed hydrogen, liquid carrier storage, glass microsphere, chemically stored hydrogen) in addition to some techniques that are still in the research and development stage: power balls, metal hydride tanks and carbon clusters.

scholarly journals Reuse of intermittent catheters: a qualitative study of IC users’ perspectives

BMJ Open ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. e021554 ◽  
Author(s):  
Miriam Avery ◽  
Jacqui Prieto ◽  
Ikumi Okamoto ◽  
Samantha Cullen ◽  
Bridget Clancy ◽  
...  
Keyword(s):  
Qualitative Study ◽  
Ease Of Use ◽  
Main Concern ◽  
Structured Interviews ◽  
Convenience Sample ◽  
Advantages And Disadvantages ◽  
Increase Risk ◽  
Single Use ◽  
Cleaning Methods ◽  
And Storage

ObjectivesTo explore the views of intermittent catheter (IC) users regarding the advantages and disadvantages of single-use or reuse of catheters.DesignQualitative study with semi-structured interviews. The interviews were recorded, transcribed and analysed thematically.SettingParticipant’s own homes in Hampshire and Dorset, UK.ParticipantsA convenience sample of 39 IC users, aged 23–86 years, using IC for at least 3 months.ResultsThe analysis revealed four main themes: concerns regarding risk of urinary tract infection (UTI); cleaning, preparation and storage; social responsibility; practicalities and location. The main concern was safety, with the fear that reuse could increase risk of UTI compared with single-use sterile catheters. If shown to be safe then around half of participants thought they might consider reusing catheters. The practicalities of cleaning methods (extra products, time and storage) were considered potentially burdensome for reuse; but for single-use, ease of use and instant usability were advantages. Always having a catheter without fear of ‘running out’ was considered an advantage of reuse. Some participants were concerned about environmental impact (waste) and cost of single-use catheters. The potential for reuse was usually dependent on location. The analysis showed that often the disadvantages of single-use could be off-set by the advantages of reuse and vice versa, for example, the need to take many single-use catheters on holiday could be addressed by reuse, while the burden of cleaning would be obviated by single-use.ConclusionsIf shown to be safe with a practical cleaning method, some participants would find reuse an acceptable option, alongside their current single-use method. The choice to use a mixture of single-use and reuse of catheters for different activities (at home, work or holiday) could optimise the perceived advantages and disadvantages of both. The safety and acceptability of such an approach would require testing in a clinical trial.

Comparison of capture and storage methods for aqueous macrobial eDNA using an optimized extraction protocol: advantage of enclosed filter

2016 ◽  
Vol 8 (5) ◽  
pp. 635-645 ◽  
Author(s):  
Johan Spens ◽  
Alice R. Evans ◽  
David Halfmaerten ◽  
Steen W. Knudsen ◽  
Mita E. Sengupta ◽  
...  
Keyword(s):  
Extraction Protocol ◽  
Storage Methods ◽  
And Storage

Separation and storage method for the elements of map image and the experimental system

1988 ◽  
Vol 19 (9) ◽  
pp. 77-91
Author(s):  
Wataru Kameyama ◽  
Hideyuki Oka ◽  
Hideyoshi Tominaga
Keyword(s):  
Experimental System ◽  
Storage Method ◽  
And Storage

scholarly journals COMPARATIVE ANALYSIS OF COMPACT METHODS REPRESENTATIONS OF GRAPHIC INFORMATION

2021 ◽  
Vol 1 (37) ◽  
pp. 130-143
Author(s):  
O. Gertsiy
Keyword(s):  
Comparative Analysis ◽  
Communication Systems ◽  
Video Data ◽  
Transport Infrastructure ◽  
Practical Significance ◽  
Jpeg 2000 ◽  
Advantages And Disadvantages ◽  
Graphic Information ◽  
The Cost ◽  
And Storage

The main characteristics of graphic information compression methods with losses and without losses (RLE, LZW, Huffman's method, DEFLATE, JBIG, JPEG, JPEG 2000, Lossless JPEG, fractal and Wawelet) are analyzed in the article. Effective transmission and storage of images in railway communication systems is an important task now. Because large images require large storage resources. This task has become very important in recent years, as the problems of information transmission by telecommunication channels of the transport infrastructure have become urgent. There is also a great need for video conferencing, where the task is to effectively compress video data - because the greater the amount of data, the greater the cost of transmitting information, respectively. Therefore, the use of image compression methods that reduce the file size is the solution to this task. The study highlights the advantages and disadvantages of compression methods. The comparative analysis the basic possibilities of compression methods of graphic information is carried out. The relevance lies in the efficient transfer and storage of graphical information, as big data requires large resources for storage. The practical significance lies in solving the problem of effectively reducing the data size by applying known compression methods.

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