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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Evidence Based Care Journal
- نوع مقاله: Journal Article
- کلمات کلیدی: care behaviors,nurses’ perception,effective care
- چکیده:
- چکیده انگلیسی: Background: Caring is the essence of nursing practice, but has been understood in various countries in a different way. Analysis of nurses’ perception of caring behaviors provides the possibility to nursing teachers and administrators to be able to plan a program to meet all the patients’ needs with an inclusive view.
Aim: to determine nurses’ perception about caring behaviors and the factors that may affect those behaviors.
Method: In this cross- sectional study, 189 Registered Nurses who were selected through Quota sampling from four teaching hospitals of Urmia city were included. Data Collection was carried out using a self-structured three-part questionnaire. Data were analyzed using descriptive tests and multivariate linear regression analysis with SPSS version 16.
Results: The highest caring behavior score was related to writing nursing reports and the lowest score to the helping to patients in their physical activity in daily life. Multivariate regression analysis showed that the sense of responsibility towards patients, sense of personal achievement due to nursing profession, belief in delivering high quality care and personal problems of nurses explained the variance in caring behaviors.
Conclusion: In order to consider all the patients’ needs, social - emotional aspects of caring is needed to be more emphasized in nursing education and planning. To highlight moral issues, creating moral and enhancing counseling services can lead to increased sense of responsibility, promoted professional ethics and self efficacy which itself resulted in decreased nurses’ personal problems.- انتشار مقاله: 21-01-1390
- نویسندگان: Esfandiar Baljani,Neda Azimi,Abdollah Hosseinloo
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Applied Research in Water and Wastewater
- نوع مقاله: Journal Article
- کلمات کلیدی: Adsorption,Fe3O4,Nanoparticles,Bentonite,Ultrasound,Sono-separator
- چکیده:
- چکیده انگلیسی: In this study, Ni+2 removal from aqueous solution was investigated by concurrent usage of Fe3O4 nanoparticles and a high frequency ultrasound (1.7 MHz). In addition to Ni+2 removal, presence of the high frequency ultrasound led to being cooled photovoltaic (PV) module. Studied variables were pH and adsorbent dose (AD). Results indicated that the Ni+2 removal efficiency increased with an increase in the pH ranging from 2 to 9. Furthermore, the Ni+2 removal efficiency boosted by an increase in the AD. However, no significant enhancement in Ni+2 removal efficiency was observed at the AD above 9 g. Generally, the maximum Ni+2 removal efficiency was about 79 % for contact time of 50 min at pH=9 and AD=9 g in the presence of ultrasound. At the efficient condition (pH=9, AD=9 g and contact time=50 min), using ultrasound showed 16-20 % enhancement in Ni+2 removal efficiency compared to no ultrasound usage. From heat transfer view, it was observed that propagation of 1.7 MHz ultrasound into nanofluid significantly has cooled the photovoltaic (PV) module. Moreover, an increase in concentration of nanofluid (AD) showed a positive effect on reduction of heat from the PV module surface and maximum generated power. Obtained data demonstrated that agitating nanofluid by 1.7 MHz ultrasound decreased temperature of the PV module up to 15.5 % compared to no cooling system.
- انتشار مقاله: 11-12-1398
- نویسندگان: Zakie Rostami,Masoud Rahimi,Neda Azimi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Chemical Engineering(IJChE)
- نوع مقاله: Journal Article
- کلمات کلیدی: Magnetic field,heat transfer,ferrofluid,Photovoltaic Panel,cooling
- چکیده:
- چکیده انگلیسی: Wind energy is used to rotate a magnetic turbine in order to remove heat from the surface of a photovoltaic (PV) panel. A three-bladed turbine, which rotates with wind energy, has rotational motion underneath the studied PV panel in order to move Magnetic Nano-Particles (MNPs). In addition, effects of the magnetic field strength (B=450-830 mT), rotational velocity of the magnetic turbine (ω), and the concentration of MNPs (ϕ) on the heat removal from the PV panel area were investigated. Results showed that heat removal from PV panel was intensified by motion of pinned MNPs in the ferrofluid via the exerted external force of magnetic field. Concurrent application of available magnetic field along with ferrofluid led to 7.6-24 % temperature reduction for a PV panel. Furthermore, the produced electrical energy of the PV panel was augmented between 2.55-3.13 W depending on ϕ, ω, and B. Moreover, the impact of ω on cooling performance was also investigated, and a significant enhancement to generated power was observed. Eventually, the maximum amount of the produced power (3.13 W), maximum power enhancement percentage (32.63 %), and thermal efficiency (24 %) were achieved for B=830 mT, ω=50 cycles/min, and ϕ=0.05 (w/v).
- انتشار مقاله: 04-06-1399
- نویسندگان: Negin Heidari,Masoud Rahimi,Neda Azimi
- مشاهده
- جایگاه : پژوهشی
- مجله: Evidence Based Care Journal
- نوع مقاله: Journal Article
- کلمات کلیدی: care behaviors,nurses’ perception,effective care
- چکیده:
- چکیده انگلیسی: Background: Caring is the essence of nursing practice, but has been understood in various countries in a different way. Analysis of nurses’ perception of caring behaviors provides the possibility to nursing teachers and administrators to be able to plan a program to meet all the patients’ needs with an inclusive view.
Aim: to determine nurses’ perception about caring behaviors and the factors that may affect those behaviors.
Method: In this cross- sectional study, 189 Registered Nurses who were selected through Quota sampling from four teaching hospitals of Urmia city were included. Data Collection was carried out using a self-structured three-part questionnaire. Data were analyzed using descriptive tests and multivariate linear regression analysis with SPSS version 16.
Results: The highest caring behavior score was related to writing nursing reports and the lowest score to the helping to patients in their physical activity in daily life. Multivariate regression analysis showed that the sense of responsibility towards patients, sense of personal achievement due to nursing profession, belief in delivering high quality care and personal problems of nurses explained the variance in caring behaviors.
Conclusion: In order to consider all the patients’ needs, social - emotional aspects of caring is needed to be more emphasized in nursing education and planning. To highlight moral issues, creating moral and enhancing counseling services can lead to increased sense of responsibility, promoted professional ethics and self efficacy which itself resulted in decreased nurses’ personal problems.- انتشار مقاله: 21-01-1390
- نویسندگان: Esfandiar Baljani,Neda Azimi,Abdollah Hosseinloo
- مشاهده
- جایگاه : پژوهشی
- مجله: Advances in Nanochemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: ultrasonic,Adsorption,Nickel,Fe3O4,Nanoparticles
- چکیده:
- چکیده انگلیسی: This paper focused on the study of the impact of ultrasonic waves on the intensification of Ni(II) removal from aqueous solution by adsorption onto Fe3O4 nanoparticles. Co-precipitation method was used to synthesis Fe3O4 magnetic nanoparticles (MNPs) and the average size of the nanoparticles was obtained about 19 nm by SEM. Two layouts including shaker and ultrasonic irradiation are examined. The effects of pH, adsorbent mass and initial concentration of Ni(II) on the removal efficiency of Ni(II) were investigated. The Ni(II) removal efficiency had the highest value at pH=9. Ni(II) removal from aqueous solution using ultrasonic need to lower contact time than the shaker at identical conditions. The highest removal efficiencies of Ni(II) were 83.3% and 85.5% with the contact times of 100 minutes and 60 minutes, respectively using the shaker and ultrasonic. Finally, Langmuir and Freundlich isotherms were employed to correlate sets of experimental adsorption isotherm data. The fitting results showed that non-linear Langmuir model could fit the data better than Freundlich model.
- انتشار مقاله: 12-03-1398
- نویسندگان: Neda Azimi,Pedram Azimi,Mohsen Samimi,Tahereh Mansouri Jalilian
- مشاهده