Results 121 to 130 of about 28,514,986 (248)

Matrix Stiffness Orchestrates Mesenchymal Stem Cell Lineage Commitment Toward Osteogenesis and Adipogenesis Through the PIEZO1/SP1/STC2 Axis

Advanced Science, EarlyView.
Matrix stiffness directs mesenchymal stem cell lineage commitment through PIEZO1‐dependent activation of the SP1/STC2 pathway. Stiff matrices favor osteogenesis and suppress adipogenesis, whereas the loss of PIEZO1 function impairs early bone formation. STC2 retains lineage‐regulatory activity even when PIEZO1 is inactive.
Shuo Zhang, Siteng Li, Wenzhong Chen, Qingcheng Song, Haiyue Zhao, Peng Wang, Yiran Zhang, Wenquan Liang, Shaowei Zheng, Juan Wang, Wei Chen, Yanbin Zhu, Yingze Zhang   +12 more
wiley   +1 more source

Flow properties of water-based drilling fluids

, 2013
The objective of this master thesis was to investigate the flow properties of water based drilling fluids, utilizing measurements in both the micro and macro scale. The research was performed on two realistic drilling fluids by the use of a viscometer, a rheometer and a realistic flow loop, where the latter represents the macro scale.
openaire   +1 more source

Yield stress behaviour of formulated water based drilling fluid with tannin additive [PDF]

, 2018
Deflocculant is added into water based drilling fluid to disperse the flocculated clay that has an adverse effect on rheological properties at a temperature above 120°C.
Azmily, Ahmad Aufa
core  

Carrier‐Free Stimulus‐Responsive Theranostic Nanoprodrug Enabling GSH‐Consumption‐Promoted Chemo‐Photodynamic Cancer Therapy

Advanced Science, EarlyView.
Leveraging the critical role of glutathione (GSH) in mediating drug resistance and scavenging reactive oxygen species (ROS) in cancer cells, a carrier‐free GSH‐consuming theranostic nanoprodrug, consisting of a BODIPY photosensitizer and the chemotherapeutic drug paclitaxel linked through a GSH‐consuming drug linker, is developed to deeply explore the ...
Hansheng Huang, Binglin Sui
wiley   +1 more source

Experimental evaluation of yield stress-thixotropy of waste fly-ash added drilling fluid: in context with HPHT/geothermal well drilling

Journal of Engineering and Applied Science
Proper transportation of cuttings to the surface, prevention of various well-controlled issues, stability of wellbore, formation damage minimization, etc. are very important issues that depend crucially on properly designed and maintained rheology of the
Satish Kumar Dewangan, Nishant Nathwani, Ajay Kawade   +2 more
doaj   +1 more source

Development and Evaluation of a Brine-Based Solids-Free Drilling Fluid System Using Produced Oilfield Water in the Tahe Oilfield

In response to the complex drilling conditions in the carbonate reservoirs of the Tahe Oilfield, a brine-based solids-free drilling fluid system using oilfield-produced water was developed.
Sheng Fan, Weiguang Sun, Peng Xu, Siyu Wu, Tao Peng   +4 more
core   +1 more source

Force‐Electric Nanotentacles of Tantalum Implant Accelerate Cellular Energy Metabolism/Crosstalk for Immunomodulation‐Vascularized Bone Integration

Advanced Science, EarlyView.
A biomimetic force‐electric nanotentacle‐enabled tantalum (Ta) implant with surface‐nanostructured LiTaO3 (n‐LiTaO3) was first developed via laser nanofabrication combined with Li+‐induced in situ reaction, enabling the transduction of ultrasound into bioelectrical cues.
Taixing Zhang, Ke Ma, Kangqing Zuo, Pandong Lin, Tailong Zhang, Rongliang Ding, Linbo Zhang, Aonan Li, Yinchuan Wang, Yanling Huang, Jichao Feng, Guiyong Xiao, Yupeng Lu, Bing Han, Zhiqiang Wang, Ningbo Li   +15 more
wiley   +1 more source

Amphibious Movement of Microrobots Inspired by Water Spiders

Advanced Science, EarlyView.
Inspired by the water strider, a novel microrobot is designed to maintain amphibious mobility in complex environments. It retains the ability to traverse the air‐liquid interface and perform directional movement within sophisticated, multifaceted environments, including complex gastric wall structures, with precise controllability.
Xiao Hu, Run Ouyang, Zhuhao Shi, Wanqiong Tao, Zuchao Zhu, Peifeng Lin, Jianzhong Lin, Luca Brandt   +7 more
wiley   +1 more source

Study on Wellbore Instability Mechanism and High-Performance Water-Based Drilling Fluid for Deep Coal Reservoir

Deep coalbed methane (CBM) reservoirs have the characteristics of low permeability, low porosity, and low water saturation, which easily experience wellbore instability due to drilling fluid, severely affecting drilling safety.
Yifu Long, Kaihe Lv, Yang Wu, Jinsheng Sun, Hailong Li, Jie Xu, Kang Ren, Jinliang Han, Jiafeng Jin   +8 more
core   +1 more source

Performance Evaluation of a Highly Inhibitive Water-Based Drilling Fluid for Ultralow Temperature Wells

, 2017
Drilling fluid with proper rheology, strong shale, and hydrate inhibition performance is essential for drilling ultralow temperature (as low as −5 °C) wells in deepwater and permafrost.
Shifeng Zhang, Mingliang Wang, Xin Zhao, Zhengsong Qiu, Weian Huang   +4 more
core   +1 more source