Results 111 to 120 of about 145,655 (304)

IL‐4/STAT6‐signaling Influences Local Inflammation and Regeneration Processes During Acute Pancreatitis and Promotes Fibrosis by a Direct Activation of Pancreatic Fibroblasts During Chronic Pancreatitis

Advanced Science, EarlyView.
IL‐4/IL‐13/STAT6 signaling plays a crucial for the suppression of pro‐inflammation during acute pancreatitis and supports acinar cell regeneration but has only minor impact on fibrogenesis during chronic form of the disease. IL‐4/IL‐13 induce the expression of certain collagens directly in pancreatic fibroblasts via STAT6 activation, whereas ...
ElSheikh H, Salvers A, Piesker J, Buchholz S, Lange R, Ameling S, Steil L, Hammer E, Homuth G, Völker U, Bröker BM, Weiss FU, Sendler M, Glaubitz J   +13 more
wiley   +1 more source

Assessment of Steel-Framed Subassemblies with Extended Reverse Channel Connections Under Falling Debris Impact

Buildings
Progressive collapse of building structures induced by accidental extreme loads has garnered significant attention. This study aimed to assess the impact resistance of steel-framed subassemblies with extended reverse channel connections under falling ...
Hao Wang, Lijie Zhao, Qi Zhang, Jianshuo Wang, Yongping Xie, Marcin Gryniewicz   +5 more
doaj   +1 more source

Determination of dynamic parameters of double-layered brick arches

Građevinar, 2015
Masonry arches assume a very important role in construction industry, and we find them in many historical structures all over the world. Dynamic parameters, frequency, and damping of masonry arches are defined in this paper using the Experimental Modal ...
Ferit Cakir
doaj   +1 more source

Visualizing and Quantifying Impact with Mechanochromic Sensing Paints Based on Self‐Assembled Polydiacetylene‐Silk Core‐Shell Vesicles

Advanced Science, EarlyView.
Tracking physical impacts is important in many fields. Self‐assembled microparticles made from polydiacetylene and silk fibroin that change color from blue to red when hit can provide an alternative approach to traditional mechanical transducers, quantitatively visualizing impact with responses ranging from <100 to 770 N.
Marco Lo Presti, Giulia Guidetti, Elisabetta Ruggeri, Terri Lyne Carrington, Fiorenzo G. Omenetto   +4 more
wiley   +1 more source

Experimental research of a new generation of support systems for the transport of mineral raw materials [PDF]

, 2017
Within the transportation of materials in mining using the belt conveyor systems, a conveyor belt is particularly the component with the highest wear rate.
Ambriško, Ľubomir, Erdeljan, Dragana Jelisavac, Frydrýšek, Karel, Marasová, Daniela Jr.   +3 more
core  

Rib‐Reinforced Ultralight and Ultra‐Strong Shell Lattices

Advanced Science, EarlyView.
This study thoroughly reveals the relation between the curvature and stress direction of triply periodic minimal surface (TPMS) thin shell lattices and proposes a novel rib reinforcement design strategy to incorporate ribs along the line of asymptotes (LOA) and the line of principal curvatures (LOC) to enhance the strength of ultralight TPMS shell ...
Winston Wai Shing Ma, Lei Zhang, Junhao Ding, Shuo Qu, Michael Yu Wang, Xu Song, Ming Wang Fu   +6 more
wiley   +1 more source

Experimental research on the mechanical properties of alkali-resistant glass fiber concrete acting as tunnel seismic isolation layer under periodic cyclic dynamic loading

Case Studies in Construction Materials
The installation of seismic isolation layer is an effective measure to ensure the safe operation of underground projects such as tunnels during extreme seismic activities.
Cong Zhang, Qingbiao Wang, Yonggang Zhang, Shanyong Wang, Xinru Zhang, Yunxiao Wang   +5 more
doaj   +1 more source

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

Advanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li, Yuan Zhou, Zhengcai Zhang, Minhui Qi, Yajuan Zhang, Yujing Jiang, Yunkai Ji, Qingguo Meng, Yongfu Sun, Nengyou Wu   +9 more
wiley   +1 more source

A study of joint damping in metal plates

, 2006
For satellite applications the determination of the correct dynamic behaviour and in particular the structural damping is important to assess the vibration environment for the spacecraft subsystems and ultimately their capability to withstand the launch ...
Aglietti, G.S., Cunningham, P.R., Walker, S.J.I.   +2 more
core  

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