Results 221 to 230 of about 1,097,882 (270)

A comparative study on the clinical efficacy and complications of proximal femoral nail antirotation and femoral neck system in the treatment of basicervical femoral neck fracture (AO/OTA 31-B3). [PDF]

Arch Orthop Trauma Surg
Jiang X, Lin D, Huang Y, Liu J, Lin F.
europepmc   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

13CO2 labelling: new uses for a well-established photosynthesis research tool. [PDF]

J Exp Bot
Clapero V.
europepmc   +1 more source

Delayed Presentation of a Retained Knife Fragment Following Penetrating Abdominal Trauma and Exploratory Laparotomy. [PDF]

Cureus
Ragan JR, Sinko A, Selman K.
europepmc   +1 more source

Predictive accuracy of a general-purpose artificial intelligence model for cut-out following proximal femoral nailing. [PDF]

Arch Orthop Trauma Surg
Ben Arie G, Warschawski Y, Amzallag N, Gan-Or H, Ben-Tov T, Khoury A, Horev I, Graif N, Morag G.   +8 more
europepmc   +1 more source

Hemorrhagic Vocal Fold Inflammation Following Endotracheal Intubation in a Patient Undergoing Endovascular Neurosurgery Under Dual Antiplatelet Therapy: A Case Report. [PDF]

Case Rep Anesthesiol
Koike M, Terui T, Nakanishi T, Tuboi R, Enomoto H, Ishibashi T.   +5 more
europepmc   +1 more source

Unsteady Aerodynamics of a Pitching Airfoil with Trailing-Edge Flap in a Four-Bladed Rotor Configuration. [PDF]

Biomimetics (Basel)
Feraru DM, Măriuța D, Grigorie TL.
europepmc   +1 more source

Subcapital Femoral Neck Fracture Despite Cement-Augmented Cephalomedullary Nail Fixation for an Osteoporotic Intertrochanteric Fracture: A Case Report and Position- and Sliding-Based Decision Guide. [PDF]

Clin Pract
Yokoo S, Okada Y, Ohno K, Ichikawa T, Terada C, Yamana K.   +5 more
europepmc   +1 more source

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Blade Crack Detection using Blade Tip Timing

IEEE Transactions on Instrumentation and Measurement, 2021
The harsh working environment of compressor threats the integrality of bladed disk. Crack is one of the most fatal faults of rotating blades. Detecting the crack of blades at early stage could ensure the safe operation of gas turbine and save economic costs.
Shuming Wu, Zengkun Wang, Haoqi Li, Zhibo Yang 0001, Shaohua Tian, Ruqiang Yan 0001, Shibin Wang, Xuefeng Chen 0002   +7 more
openaire   +1 more source

An OPR-Free Blade Tip Timing Method for Rotating Blade Condition Monitoring

IEEE Transactions on Instrumentation and Measurement, 2021
Blade tip timing (BTT) is a noncontact blade vibration measurement method for rotating blade condition monitoring. However, it is difficult to install a once-per-revolution (OPR) probe due to the internal environment limitation of an engine. To solve this problem, an OPR-free BTT method is proposed in this article.
Zengkun Wang, Zhibo Yang 0001, Shuming Wu, Haoqi Li, Shaohua Tian, Xingwu Zhang, Ruqiang Yan 0001, Xuefeng Chen 0002   +7 more
openaire   +2 more sources