Results 61 to 70 of about 464,589 (306)

Laser heterodyne system for obtaining height profiles of minor species in the atmosphere [PDF]

, 1986
An infrared laser heterodyne system for obtaining height profiles of minor constituents of the atmosphere was developed and erected. A brief discription of the system is given.
Jain, S. L., Saha, A. K.
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Control of welding residual stress for dissimilar laser welded materials [PDF]

, 2008
The most common problem of welding dissimilar metals (DMWs) with respect to residual stresses is the differences in the coefficient of thermal expansion and heat conductivity of the two welded metals.
A.G. Olabi, Anawa, Anawa, Anawa, Dawes, E.M. Anawa, Juang, Lu, Masabutchi, Mochizuki, Nickola, Schajer, Sun, Sun, Tarng, Viotti   +15 more
core   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

KINETIC MODEL OF ELECTRIC-DISCHARGE СО2-LASER WITH FAST FLOW

Наука и техника, 2013
The paper presents a kinetic model of CW electric-discharge CO2-laser with fast flow. Expressions linking a non-saturated gain ratio, saturation intensity and output power of the fast-flow laser with excitation rates and relaxation times of laser levels ...
V. V. Nevdakh
doaj  

Effect of laser-welding parameters on the heat input and weld-bead profile [PDF]

, 2005
Laser butt-welding of medium carbon steel was investigated using CW 1.5 kW CO2 laser. The effect of laser power (1.2 - 1.43 kW), welding speed (30 - 70 cm/min) and focal point position (-2.5 - 0 mm) on the heat input and the weld-bead geometry (i.e ...
A.G. Olabi, Allen, Benyounis, Dawes, Fuerschbach, Gunaraj, Gunaraj, Huang, K.Y. Benyounis, Khuri, Kim, M.S.J. Hashmi, Montgomery, Steen   +13 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Effective Technique Using Combined CO2 Laser and Pulsed Dye Laser for Facial Angiofibromas Management in Tuberous Sclerosis

Case Reports in Dermatological Medicine
Background. Facial angiofibromas (FAs) are a dermatological characteristic which are typically linked to tuberous sclerosis (TS). Aim. We discuss our experience, highlighting a rare occurrence of multiple FAs in a young patient, successfully treated with
Giuseppe Lodi, Giovanni Cannarozzo, Irene Fusco, Tiziano Zingoni, Elena Campione, Mario Sannino   +5 more
doaj   +1 more source

The short-term outcome of laser in the management of female pelvic floor disorders: Focus on stress urine incontinence and sexual dysfunction

Taiwanese Journal of Obstetrics & Gynecology, 2018
Objective: Female pelvic floor disorders, including female stress urinary incontinence (SUI) or sexual dysfunction are notorious for affecting the quality of women's life.
Hsin-Yin Lin, Hsiao-Wen Tsai, Kuan-Hao Tsui, Ya-Fen An, Ching-Chuan Lo, Zi-Han Lin, Wen-Shiung Liou, Peng-Hui Wang   +7 more
doaj   +1 more source

Developing Consistency in Enamel Etching by CO\u3csub\u3e2\u3c/sub\u3e Laser [PDF]

, 1994
It has been reported that CO2 laser energy can be utilized to etch enamel. However, consistency of etching has been a significant problem. This research was designed to ascertain which exposure parameters result in consistent etching of enamel.
Gonzalez, Cesar, Zakariasen, Kenneth L.
core   +1 more source