Results 171 to 180 of about 216,053 (237)

Segmented Therapeutic Delivery via Acoustic Microbubble Relay

Advanced Intelligent Systems, EarlyView.
An acoustically driven, modular segmented delivery system is presented to overcome mechanical limitations of conventional microcatheters. Oscillating microbubbles generate directional streaming that enables continuous, targeted transport across open, angled segments.
Lei Wang, Yiyang Tang, Yiqiang Wu, Xin Zhang, Tianshi Lyu, Zhen Hua, Tian‐Yun Huang   +6 more
wiley   +1 more source

Measuring Local Exothermic Effects During the Oxidative Coupling of Methane Using Operando Luminescence Thermometry

Angewandte Chemie, EarlyView.
Operando luminescence thermometry shows that the local catalyst temperature can exceed the set oven temperature by almost 250°C during the exothermic oxidative coupling of methane process. We demonstrate how the reactor dimensions, catalyst grain size, and reactant feed mixture affect the local temperature.
Daniël W. Groefsema, Freddy T. Rabouw, D. Michiel Boele, A.N. René Bos, Alexander P. van Bavel, Bert M. Weckhuysen   +5 more
wiley   +2 more sources

A Composite Material Repair Structure: For Defect Repair of Branch Pipe Fillet Welds in Oil and Gas Pipelines. [PDF]

Materials (Basel)
Zhao L, Qiao Y, Yin Z, Xie B, Wang B, Zhou J, Chen S, Wang Z, Wang X, Zhang X, Bian X, Zhang X, Wu Y, Wang P.   +13 more
europepmc   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

Advanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Water‐Derived Radical Species Initiate Six‐Electron Oxidation of Cyclic Ketones in Microdroplets

Angewandte Chemie, EarlyView.
Spontaneous six‐electron oxidation of cyclic ketones to yield dicarboxylic acids/keto acids is achieved in ethanol microdroplets containing about 2% water under ambient conditions without any metal salts, acids, or oxidants. Mechanistic studies show that trace amounts of water and molecular oxygen serve as active oxidants in this transformation ...
Muhammad Mujahid Ali, Manish Jana, William LeFever, Robert Graham Cooks   +3 more
wiley   +2 more sources

Identification and classification of oil and gas pipeline intru-sion events based on 1-D CNN network. [PDF]

PLoS One
Qin H, Huang X, Wang X, Zhou Z.
europepmc   +1 more source

Multi‐Responsive Bowl‐Shaped Janus Nanomotors Based on Polyitaconic acid/Polypyrrole on the Surface of Iron Oxide Nanoparticles with Chemical, Electrical, and Magnetic Field Actuation for Targeted Drug Delivery Applications

Advanced NanoBiomed Research, EarlyView.
Bowl‐shaped Janus nanomotors with platinum, iron oxide, and polypyrrole integrate catalytic, magnetic, and electric propulsion for targeted drug delivery. They demonstrate controlled, directional motion under varying pH and hydrogen peroxide conditions, with optimal performance in neutral media.
Kimia Tavakoli Dehaghi, Sepideh Khoee, Shima Tavakoli, Oommen P. Varghese   +3 more
wiley   +1 more source

A collection of experimental data from a multiphase plant simulating oil and gas transport. [PDF]

Data Brief
Mazzuto G, Pietrangeli I, Ortenzi M, Foti V, Ciarapica FE, Bevilacqua M.   +5 more
europepmc   +1 more source

Research and Applications of Additive Manufacturing in Oil and Gas Extraction and Gathering Engineering. [PDF]

Materials (Basel)
Jin X, Liu J, Fan W, Sun M, Xiao Z, Fan Z, Yang M, Yao L.   +7 more
europepmc   +1 more source

Analysis and optimization of the J-T valve control logic for offshore oil and gas field low-temperature separators based on K-Spice. [PDF]

Sci Rep
Liu Y, Lin F, Zhu G, Yao Z.
europepmc   +1 more source