A supportive approach into life testing and characterization of PVC and XLPE-insulated cable materials

ESR thermal analysis investigation of widely used insulation materials, namely PVC and XLPE, were conducted. The results show the thermal stresses and confirm the fact that PVC is rapidly degrades than XLPE. It is also noticed that colorants and cable's manufacturing processes enhance the thermal resistance of the PVC insulation material. A comparative investigation of weight loss experimentation, IEC Standard 216-procedure, and ESR-experimentation verify the powerfulness and importance of the ESR testing of insulation materials used in cable industries. Hence, ESR results were utilized to predict more accurate thermal life time curves of the studied patches. The comparison of the thermal endurance parameters obtained for insulated cable models with those derived in the past for XLPE cable models shows that the all the pervious tests of XLPE overestimate its thermal endurance characteristics

” Electron spin resonance spectral study of PVC and XLPE insulation materials and their life time analysis”

Electron spin resonance (ESR) study is carried out to characterize thermal endurance of insulating materials used in power cable industry. The presented work provides ESR investigation and evaluation of widely used cable insulation materials, namely polyvinyl chloride (PVC) and cross-linked polyethylene (XLPE). The results confirm the fact that PVC is rapidly degrades than XLPE. The study also indicates that colorants and cable’s manufacturing processes enhance the thermal resistance of the PVC. It also verifies the powerfulness and the importance of the ESR-testing of insulation materials compared to other tests assumed by International Electrotechnical Commission (IEC) Standard 216- procedure, e.g. weight loss (WL), electric strength (ES) or tensile strength (TS). The estimated thermal endurance parameters by ESR-method show that the other standard methods overestimate these parameters and produce less accurate thermal life time curves of cable insulation materials

A supportive approach into life testing and characterization of PVC and XLPE-insulated cable materials

ESR thermal analysis investigation of widely used insulation materials, namely PVC and XLPE, were conducted. The results show the thermal stresses and confirm the fact that PVC is rapidly degrades than XLPE. It is also noticed that colorants and cable's manufacturing processes enhance the thermal resistance of the PVC insulation material. A comparative investigation of weight loss experimentation, IEC Standard 216-procedure, and ESR-experimentation verify the powerfulness and importance of the ESR testing of insulation materials used in cable industries. Hence, ESR results were utilized to predict more accurate thermal life time curves of the studied patches. The comparison of the thermal endurance parameters obtained for insulated cable models with those derived in the past for XLPE cable models shows that the all the pervious tests of XLPE overestimate its thermal endurance characteristics

” Electron spin resonance spectral study of PVC and XLPE insulation materials and their life time analysis”

Electron spin resonance (ESR) study is carried out to characterize thermal endurance of insulating materials used in power cable industry. The presented work provides ESR investigation and evaluation of widely used cable insulation materials, namely polyvinyl chloride (PVC) and cross-linked polyethylene (XLPE). The results confirm the fact that PVC is rapidly degrades than XLPE. The study also indicates that colorants and cable’s manufacturing processes enhance the thermal resistance of the PVC. It also verifies the powerfulness and the importance of the ESR-testing of insulation materials compared to other tests assumed by International Electrotechnical Commission (IEC) Standard 216- procedure, e.g. weight loss (WL), electric strength (ES) or tensile strength (TS). The estimated thermal endurance parameters by ESR-method show that the other standard methods overestimate these parameters and produce less accurate thermal life time curves of cable insulation materials

Novel exploration of cable insulation materials using electron spin resonance spectroscopy

The electron spin resonance (ESR) study, as one of the best spectroscopic tools for direct spectral studies and analysis in material science, will be carried out to characterize and simulate the thermal stress and heat-generated on insulation materials from practical loading of cable. The results will be used to evaluate the quality and main properties of raw and manufactured insulation materials. The presented work provides the first ESR investigation and evaluation of widely used power cable insulation materials, namely PVC, and XLPE. The analysis will include locally manufactured and imported raw plastic materials used by some Saudi power cable factories. Additives, like colorant and/or stabilizer, are used to standard shades lines of cables for ready identification and to enhance their quality. It is also intended in this study to identify the effect of these additives on maintaining the insulation properties of the studied samples. The results of PVC or XLPE polymeric insulation materials can be extended from life tests to the application of these materials for higher quality and improvement cable materials

Novel exploration of cable insulation materials using electron spin resonance spectroscopy

The electron spin resonance (ESR) study, as one of the best spectroscopic tools for direct spectral studies and analysis in material science, will be carried out to characterize and simulate the thermal stress and heat-generated on insulation materials from practical loading of cable. The results will be used to evaluate the quality and main properties of raw and manufactured insulation materials. The presented work provides the first ESR investigation and evaluation of widely used power cable insulation materials, namely PVC, and XLPE. The analysis will include locally manufactured and imported raw plastic materials used by some Saudi power cable factories. Additives, like colorant and/or stabilizer, are used to standard shades lines of cables for ready identification and to enhance their quality. It is also intended in this study to identify the effect of these additives on maintaining the insulation properties of the studied samples. The results of PVC or XLPE polymeric insulation materials can be extended from life tests to the application of these materials for higher quality and improvement cable materials

Novel exploration of cable insulation materials using electron spin resonance spectroscopy

The electron spin resonance (ESR) study, as one of the best spectroscopic tools for direct spectral studies and analysis in material science, will be carried out to characterize and simulate the thermal stress and heat-generated on insulation materials from practical loading of cable. The results will be used to evaluate the quality and main properties of raw and manufactured insulation materials. The presented work provides the first ESR investigation and evaluation of widely used power cable insulation materials, namely PVC, and XLPE. The analysis will include locally manufactured and imported raw plastic materials used by some Saudi power cable factories. Additives, like colorant and/or stabilizer, are used to standard shades lines of cables for ready identification and to enhance their quality. It is also intended in this study to identify the effect of these additives on maintaining the insulation properties of the studied samples. The results of PVC or XLPE polymeric insulation materials can be extended from life tests to the application of these materials for higher quality and improvement cable materials

Burden and risk factors for Pseudomonas aeruginosa community-acquired pneumonia:a Multinational Point Prevalence Study of Hospitalised Patients

Pseudornonas aeruginosa is a challenging bacterium to treat due to its intrinsic resistance to the antibiotics used most frequently in patients with community-acquired pneumonia (CAP). Data about the global burden and risk factors associated with P. aeruginosa-CAP are limited. We assessed the multinational burden and specific risk factors associated with P. aeruginosa-CAP. We enrolled 3193 patients in 54 countries with confirmed diagnosis of CAP who underwent microbiological testing at admission. Prevalence was calculated according to the identification of P. aeruginosa. Logistic regression analysis was used to identify risk factors for antibiotic-susceptible and antibiotic-resistant P. aeruginosa-CAP. The prevalence of P. aeruginosa and antibiotic-resistant P. aeruginosa-CAP was 4.2% and 2.0%, respectively. The rate of P. aeruginosa CAP in patients with prior infection/colonisation due to P. aeruginosa and at least one of the three independently associated chronic lung diseases (i.e. tracheostomy, bronchiectasis and/or very severe chronic obstructive pulmonary disease) was 67%. In contrast, the rate of P. aeruginosa-CAP was 2% in patients without prior P. aeruginosa infection/colonisation and none of the selected chronic lung diseases. The multinational prevalence of P. aeruginosa-CAP is low. The risk factors identified in this study may guide healthcare professionals in deciding empirical antibiotic coverage for CAP patients

Antimicrobial activities of coriander in chicken meat products: A review

Chicken meat products contribute significantly as a fairly priced substitute for red meat, which is critically undersupplied in Egypt. This type of meat is high in animal protein, vital amino acids, and trace elements. Furthermore, as a result of rapid improvements in food processing and technology, a variety of chicken meat products, including as chicken burgers, chicken fillets, chicken sandwiches, chicken nuggets, and chicken panne, were manufactured and released into the chicken meat markets. Such key products are defined by their distinct flavor and aroma, which captivates buyers, particularly children. Microorganisms can contaminate chicken meat products at any stage of production, including raw material preparation, manufacture, distribution, and storage. As a result, chicken products are regarded to be a possible source of bacteria that cause food poisoning, such as Staphylococcus aureus (S. aureus) and Salmonella spp. Essential oils derived from the coriander plant (Coriandrum sativum L.), either from the seeds or the leaves, are among the most extensively utilized. Coriander and coriander essential oils are antibacterial, anti-oxidant, anti-diabetic, anxiolytic, anti-epileptic, depressive, anti-mutagenic, anti-inflammatory, antidyslipidemic, antihypertensive, neuroprotective, and diuretic. In this review, we threw the light on the microbial contamination of chicken meat and meat products in Egypt and worldwide. Besides, the antibacterial activities of coriander will be reviewed