Results 71 to 80 of about 10,905 (259)

Study on Cumulative Damage Law of Stainless Steel-Reinforced Concrete Columns under Step Impact Loading

Advances in Materials Science and Engineering, 2019
In this study, an ultrahigh drop hammer impact test system was adopted for multiple horizontal impact tests on stainless steel-reinforced concrete columns and ordinary-reinforced concrete columns with the same longitudinal reinforcement diameter.
Bo Wu, Shixiang Xu, Guoxue Zhang
doaj   +1 more source

Multimodal Cross‐Attentive Graph‐Based Framework for Predicting In Vivo Endocrine Disruptors

Advanced Science, EarlyView.
A multimodal cross‐attentive graph neural network integrates molecular graphs with androgen and estrogen adverse outcome pathway (AOP)–anchored in vitro assay signals to predict in vivo endocrine disruption. By fusing information on Tier‐1 AOP logits with chemical structures, the framework achieves high accuracy and provides assay‐traceable ...
Eder Soares de Almeida Santos, Gustavo Felizardo Santos Sandes, Artur Christian Garcia da Silva, Holli‐Joi Martin, Eugene N. Muratov, Rodolpho de Campos Braga, Bruno Junior Neves   +6 more
wiley   +1 more source

In Situ Measurements of Interfacial Contact Pressure During Impact Hammer Tests [PDF]

Understanding the nonlinear dynamical contact interactions within joints is crucial for understanding and predicting the dynamics of assembled structures. In spite of this, most experimental investigations focused on the global vibration behavior, since the local interactions at the interface cannot be observed with standard techniques.
B. Seeger, P. Butaud, M. V. Baloglu, F. Du, M. R. W. Brake, C. W. Schwingshackl   +5 more
openaire   +1 more source

Systematically Engineering for Efficient Production of 3‐Methyl‐1‐Butanol in Escherichia coli

Advanced Science, EarlyView.
An integrated metabolic engineering strategy was established for high‐level 3‐methyl‐1‐butanol biosynthesis in Escherichia coli. Molecular dynamics‐guided semi‐rational engineering of dihydroxyacid dehydratase uncovered and relieved key catalytic bottlenecks, while adaptive laboratory evolution enhanced strain robustness.
Nanfei Geng, Hao Liu, Haolin Han, Meng Meng, Shaojie Wang, Tianwei Tan, Haijia Su   +6 more
wiley   +1 more source

Piezo1 Channel Mediates Mechanically Programmable Drug Delivery to Potentiate Intravesical Chemotherapy

Advanced Science, EarlyView.
This study utilizes programmable mechanical pressure as a therapeutic enhancer to establish a mechano‐chemotherapy strategy. Controlled pressure activates the mechanosensitive ion channel Piezo1 in bladder cancer, triggering a calcium ion cascade that transiently and reversibly amplifies membrane permeability to chemotherapeutics.
Minghai Ma, Xing Li, Minxuan Jing, Zezhong Yang, Jiale He, Jianpeng Li, Xiao Liang, Yunzhong Jiang, Rou Huang, Yuanquan Zhang, Yuanchun Pu, Jiawei Xiu, Yutong Chen, Kaibo Mi, Pu Zhang, Lei Wang, Jinhai Fan   +16 more
wiley   +1 more source

Concrete production using marble powder and marble coarse aggregates: an analysis of mechanical properties and sustainability

Budownictwo i Architektura
The growing demand for concrete driven by infrastructure and urbanization puts pressure on natural resources and harms the ecosystem. Using recycled materials like waste marble powder (WMP) and marble coarse aggregates (MCA) in concrete can address this
Saloua Filali, Abdelkader Nasser
doaj   +1 more source

Ground Simulation Test of 2D Dynamic Overload Environment of Fuze Launching

Shock and Vibration, 2020
The fuze launch process is subjected to backseat and spin overloads. To address this issue, a loading method of a 2D dynamic acceleration environment was developed in this study for testing fuze antioverload performance on ground.
Zhibo Wu, Tiehua Ma, Yanbing Zhang, Hongyan Zhang   +3 more
doaj   +1 more source

In‐Operando FTIR Study to Investigate the Effect of Varying Lithium Salts on Solid Electrolyte Interface (SEI) Evolution in Lithium Metal Batteries

Advanced Science, EarlyView.
A clear correlation between electrolyte salt chemistry and Solid Electrolyte Interface (SEI) performance in lithium metal batteries is established using in operando FTIR spectroscopy. This study shows that LiTFSI instantaneously forms a robust, inorganic organic hybrid SEI (LiF, Li3N, Li2O, ROCO2Li, ROLi) that minimizes overpotential, while less ...
Samia Rahman, Rhyz Pereira, Jantakan Nedsaengtip, Vibha Kalra   +3 more
wiley   +1 more source

Aseismic performances of constrained damping lining structures made of rubber-sand-concrete

Journal of Rock Mechanics and Geotechnical Engineering
Flexible damping technology considering aseismic materials and aseismic structures seems be a good solution for engineering structures. In this study, a constrained damping structure for underground tunnel lining, using a rubber-sand-concrete (RSC) as ...
Xiancheng Mei, Qian Sheng, Jian Chen, Zhen Cui, Jianhe Li, Chuanqi Li, Daniel Dias   +6 more
doaj   +1 more source

Estimation of Impact Hardness of Rocks by Means of Drop Hammer Test.

Shigen-to-Sozai, 1992
The impact hardness of rock is normally determined by using a ‘Protodyakonov’ type drop hammer. However, this test cannot be applied to a wide range of rocks. Therefore, standardized impact hardness test using the ‘Protodyakonov’ type drop hammer was carried out and the correlati ons of the resulting values of impact hardness with the mechanical ...
Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE   +2 more
openaire   +2 more sources