Results 131 to 140 of about 1,560,331 (368)

Monopolar Radiofrequency for Dermal Prejuvenation: Scientific Rationale and Mechanisms of Action

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives To summarize the scientific rationale for the use of the monopolar radiofrequency tissue tightening system (monoRF) for the prevention of dermal aging (termed prejuvenation). Materials and Methods This narrative review summarizes the basic science of dermal aging and monoRF‐induced collagen remodeling and neocollagenesis.
Suzanne L. Kilmer, Mathew Avram, Ashish C. Bhatia, Nicole Y. Lee, Abby Jacobson   +4 more
wiley   +1 more source

Dual 1550‐nm Erbium Glass Fiber and 1927‐nm Thulium Fiber Non‐ablative Fractional Laser System Treatment in Patients With Skin of Color: A Review of Clinical Studies and Unmet Needs

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives To review the efficacy and safety of the dual 1550‐nm erbium glass fiber and 1927‐nm thulium fiber non‐ablative fractional laser system in patients with skin of color (ie, Fitzpatrick skin types [FSTs] III–VI). Materials and Methods Efficacy, safety, and histologic outcomes were reviewed from 15 clinical studies examining the use of
Mitchel P. Goldman, Douglas C. Wu, Shilpi Khetarpal, Abby Jacobson, Jordan V. Wang, Roy G. Geronemus   +5 more
wiley   +1 more source

Enhancing Electric-Gas–Integrated Energy Systems: Optimal Coupling Strategies for Mitigating Voltage Sag Effects

International Transactions on Electrical Energy Systems
Current research on electricity-gas–integrated energy systems (EG-IESs) often overlooks power quality issues prevalent in power systems. Voltage sags, critical and frequent power quality disturbance, significantly affect the EG-IES due to sensitive ...
Wei Zhao, Yi Zhang, Jiazhong Zhang
doaj   +1 more source

Continuous harmonic analysis and power quality measurements in three-phase systems [PDF]

, 2003
A virtual instrument, named Power Quality Meter, is presented for (a) measuring power consumption and harmonics in three-phase systems, under non-sinusoidal and imbalance conditions (b) detecting, classifying and organizes power disturbance events ...
Borrás-Talavera, M. Dolores, Bravo-Rodríguez, Juan Carlos, Bravo-Rodríguez, Juan Carlos (Coordinador), Castilla Ibáñez, Manuel, Gutiérrez Benítez, Jaime, López Ojeda, Antonio, Montaño Asquerino, Juan-Carlos   +6 more
core  

Review for "Relative location of voltage sags source at the point of common coupling of constant power loads in distribution systems"

, 2020
Heresh Seyedi
openalex   +1 more source

MC BTS: Simultaneously Resolving Magnetization Transfer Effect and Relaxation for Multiple Components

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose a signal acquisition and modeling framework for multi‐component tissue quantification that encompasses transmit field inhomogeneity, multi‐component relaxation and magnetization transfer (MT) effects. Theory and Methods By applying off‐resonance irradiation between excitation and acquisition within an RF‐spoiled gradient ...
Albert Jang, Hyungseok Jang, Nian Wang, Alexey Samsonov, Fang Liu   +4 more
wiley   +1 more source

Assessment of Optimal T1/T2‐Weighted Combinations for Myelin Sensitivity: Effects of Echo Time and Exponents

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The aim of this study is to improve the traditional T1‐weighted (T1w) over T2‐weighted (T2w) ratio as a proxy for myelin by investigating the optimal T2w TE and combination of exponent‐weighted T1w and T2w images (T1wx1/T2wx2$$ \mathrm{T}1{\mathrm{w}}^{x_1}/\mathrm{T}2{\mathrm{w}}^{x_2} $$).
Simone Monachino, Gerhard S. Drenthen, Lis J. M. van den Boogaard, Marcel Breeuwer, Catarina Dinis Fernandes, Oliver H. H. Gerlach, Svitlana Zinger, Jacobus F. A. Jansen   +7 more
wiley   +1 more source

Rural Facility Electric Power Quality Analysis [PDF]

, 1991
This report gives results of a recently completed data collection and analysis project investigating electric power quality of two isolated utility systems in Alaska. This is the second phase of a similar effort reported in 1984 which provided the first
Aspnes, J.D., Merrit, R.P., Spell, B.D., Zhao, Y. Q.   +3 more
core  

Dietitian‐led very low‐calorie diet for preoperative rehabilitation in patients with obesity awaiting non‐bariatric elective laparoscopic surgery: A retrospective study

Nutrition in Clinical Practice, EarlyView.
Abstract Background Obesity increases the risks and complexity of laparoscopic surgeries. Preoperative very low‐calorie diets (VLCDs) can demonstrate significant preoperative weight loss. However, the optimal VLCD duration remains unclear. Excessive loss of muscle mass associated with VLCDs may elevate surgical and postoperative risks. This study aimed
Gerald Wei Shen Wong, Cathy Guo, Cameron M. French, Jack J. Bell, Lynda J. Ross   +4 more
wiley   +1 more source

A Review on Power Quality Improvement via Custom Power Devices [PDF]

, 2016
Power Quality has been said a set of electrical boundaries of the electrical supply provided under normal operating condition that allow equipment to function in its rated condition without significant loss of performance and life expectancy that do not ...
Haque, A. M. (A), Mehta, N. D. (N), Patel, A. P. (Ashish)   +2 more
core