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Kaur, Navpreet
- RF Energy Harvesting and Storage System of Rectenna:A Review
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Authors
Affiliations
1 Desh Bhagat University, Fatehgarh Sahib – 147301, Punjab, IN
2 Thapar University, Patiala – 147004, Punjab, IN
1 Desh Bhagat University, Fatehgarh Sahib – 147301, Punjab, IN
2 Thapar University, Patiala – 147004, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 11, No 25 (2018), Pagination: 1-5Abstract
Objectives: In this paper, a discussion of different types rectennas (antenna + rectifier) which is used for different type of RF energy harvesting ambient signals and storage system. Methods/Statistical Analysis: RF energy can be harvested in the ISM unlicensed band from various ambient source in particular from mobile radio transmitters, Wi-Fi networks, wireless devices (laptops). The RF energy is captured using antenna preferable patch antenna. The received signal is converted into DC voltage using a impedance matching circuit and a voltage multiplier. Received output voltage is enhanced using various methods in order to make it sufficient to charge low power devices. Findings: After the literature review it has been observed that antenna designed to harvest RF energy should have high efficiency, gain and impedance matching with rectifier circuit. Applications: Rectennas find their application in Sensor networks, small wireless devices which needs power which should be portable.References
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- Knowledge of mothers regarding developmental milestones of infants: A Descriptive Cross-sectional study
Abstract Views :208 |
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Authors
Manpreet Kaur
1,
Manpreet Kaur
1,
Manpreet Kaur
1,
Manpreet Kaur
1,
Narinder Kaur
1,
Natasha
1,
Navjot Kaur
1,
Navjot Kaur
1,
Navneet Kaur
1,
Navpreet Kaur
1,
Simarjit Kaur
2,
Navjot Kaur
3
Affiliations
1 Dayanand Medical College and Hospital, College of Nursing, Ludhiana, Punjab,, IN
2 Nursing Tutor, Dayanand Medical College and Hospital, College of Nursing, Ludhiana, Punjab,, IN
3 Assistant Professor, All India Institute of Medical Sciences, Deoghar, College of Nursing., IN
1 Dayanand Medical College and Hospital, College of Nursing, Ludhiana, Punjab,, IN
2 Nursing Tutor, Dayanand Medical College and Hospital, College of Nursing, Ludhiana, Punjab,, IN
3 Assistant Professor, All India Institute of Medical Sciences, Deoghar, College of Nursing., IN
Source
International Journal of Advances in Nursing Management, Vol 10, No 4 (2022), Pagination: 315-320Abstract
Developmental milestones in children or infants are a certain set of skills or age-specific tasks. Missed or delayed milestones in infancy can be symptoms of serious medical conditions. If parents understand their children’s development, they can tailor their expectations and provide stimulation. This study was conducted to assess the level of knowledge regarding the development milestones of infants among mothers. A descriptive study was conducted on 100 mothers of neonates visiting pediatric OPD and gynecological unit (Postnatal Ward).A convenience sampling technique was used to collect data. More than half of mother’s i.e. 60% had an average level of knowledge, 22% of mothers had a poor level of knowledge and 18% of mothers had a good level of knowledge. Mothers had the highest (75.25%) mean knowledge percentage in general information followed by 53.33%, in developmental delay and least (37.50%) mean knowledge percentage in languagedevelopment. The overall mean knowledge score is 10.240±2.40 and there is no association (p>0.05) between the knowledge level of mothers with selected demographic variables. It is concluded that the majority of the mothers of neonates had average knowledge regarding developmental milestones.Keywords
Knowledge, Mothers, Infants, developmental milestones.References
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