New Techniques for Estimating the Condition of High Voltage Polymeric Insulators

2008 ◽  
pp. 949-956 ◽  
Author(s):  
D Birtwhistle ◽  
G Cash ◽  
G A George ◽  
D Hinde
Keyword(s):  
High Voltage ◽  
New Techniques ◽  
Polymeric Insulators

Synthesis of MnO2 nanoparticles and their effective utilization as UV protectors for outdoor high voltage polymeric insulators used in power transmission lines

2016 ◽  
Vol 18 (48) ◽  
pp. 32876-32890 ◽  
Author(s):  
Dipankar Ghosh ◽  
Subhendu Bhandari ◽  
Dipak Khastgir
Keyword(s):  
Uv Radiation ◽  
High Voltage ◽  
Transmission Lines ◽  
Power Transmission ◽  
Uv Protection ◽  
Power Transmission Lines ◽  
Effective Utilization ◽  
Mno2 Nanoparticles ◽  
Polymeric Insulators ◽  
Outdoor Insulators

The mechanism of the UV protection of polymers by MnO2 where UV radiation is absorbed by MnO2 particles present in the PDMS/EVA–MnO2 composite used in high voltage outdoor insulators for power transmission lines.

scholarly journals University of Cambridge Natural Radiocarbon Measurements IX

Radiocarbon ◽  
1970 ◽  
Vol 12 (2) ◽  
pp. 590-598 ◽  
Author(s):  
V. R. Switsur ◽  
M. A. Hall ◽  
R. G. West
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Radiocarbon Dating ◽  
Cosmic Ray ◽  
New Techniques ◽  
Plastic Scintillation ◽  
University Of Cambridge ◽  
Solid State Devices ◽  
Proportional Counters ◽  
The University

The University of Cambridge Radiocarbon Dating Laboratory has been completely rebuilt and modernized, incorporating new techniques developed here for the various stages of measurements. Sample radioactivity is measured in gas proportional counters after conversion to highly purified CO2. Four counters are mounted within a single anticoincidence shield consisting of plastic scintillation material. This is surrounded by a graded cosmic ray shield of low radioactive steel, boron loaded wax, and finally, about 16 tons of ancient low radioactive lead blocks. The electronics are all solid state devices except for the stabilized high voltage supplies.

Nano-Tech OHTL Insulators

2021 ◽  
pp. 112-140
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Voltage Distribution ◽  
Ceramic Suspension ◽  
Overhead Transmission Lines ◽  
Polymeric Insulators

This chapter detects types and structure of ceramic and polymeric insulators. It also sheds light on improving efficiency and high voltage distribution through insulators string toward utilizing nanotechnology techniques. Furthermore, this chapter takes interest in displaying the effects of nanoparticles on overhead transmission lines (OHTL) insulators and high voltage distribution on suspension insulators. The importance and features of using polymeric and non-ceramic suspension insulators have been recently detailed. Thus, this chapter tackles and designs recent models for using individual and multiple nanoparticles in polymeric OHTL suspension insulators. It draws forecasts and recommendations for developing suspension insulators by using nanotechnology techniques.

scholarly journals Physiotherapy treatments for breast cancer-related lymphedema: a literature review

2009 ◽  
Vol 17 (5) ◽  
pp. 730-736 ◽  
Author(s):  
Nara Fernanda Braz da Silva Leal ◽  
Hélio Humberto Angotti Carrara ◽  
Karina Franco Vieira ◽  
Cristine Homsi Jorge Ferreira
Keyword(s):  
Breast Cancer ◽  
Electrical Stimulation ◽  
Literature Review ◽  
Laser Therapy ◽  
Systematic Literature Review ◽  
High Voltage ◽  
Therapeutic Process ◽  
New Techniques ◽  
Complex Decongestive Therapy ◽  
Breast Cancer Related Lymphedema

Breast cancer is the second most frequent cancer among women. Surgery is part of the therapeutic process to prevent metastases, but it can also cause some complications, including lymphedema. Physiotherapy contributes to its treatment, using different techniques that have been developed over the years. This systematic literature review aims to present physiotherapy modalities applied for lymphedema therapy. The literature review was conducted using textbooks and Lilacs, Pubmed and Scielo databases, from 1951 to 2009. Physiotherapy resources used for lymphedema treatment include complex decongestive therapy (CDT), pneumatic compression (PC), high voltage electrical stimulation (HVES) and laser therapy. The analyzed literature shows that better results are obtained with combined techniques. CDT is the most used protocol, and its association with PC has demonstrated efficacy. The new techniques HVES and laser present satisfactory results.

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