Recombinantly Expressed Gas Vesicles as Nanoscale Contrast Agents for Ultrasound and Hyperpolarized MRI [0.03%]
作为超声波和超极化MRI纳米对比剂的重组气体小体
Arash Farhadi,Gabrielle Ho,Martin Kunth et al.
Arash Farhadi et al.
Ultrasound and hyperpolarized magnetic resonance imaging enable the visualization of biological processes in deep tissues. However, few molecular contrast agents are available to connect these modalities to specific aspects of biological fu...
Stem cell biomanufacturing under uncertainty: A case study in optimizing red blood cell production [0.03%]
不确定性条件下的干细胞生物制造优化——红细胞生产的案例研究
Ruth Misener,Mark C Allenby,María Fuentes-Garí et al.
Ruth Misener et al.
As breakthrough cellular therapy discoveries are translated into reliable, commercializable applications, effective stem cell biomanufacturing requires systematically developing and optimizing bioprocess design and operation. This article p...
Kaustav Niyogi,Maria M Torregrosa,Guy B Marin et al.
Kaustav Niyogi et al.
The hydrodynamics of secondary flow phenomena in a disc-shaped gas vortex unit (GVU) is investigated using experimentally validated numerical simulations. The simulation using ANSYS FLUENT® v.14a reveals the development of a backflow regio...
Vinay V Mahajan,Johan T Padding,Tim M J Nijssen et al.
Vinay V Mahajan et al.
Fluidization is widely used in industries and has been extensively studied, both experimentally and theoretically, in the past. However, most of these studies focus on spherical particles while in practice granules are rarely spherical. Par...
Magnetic particle tracking for nonspherical particles in a cylindrical fluidized bed [0.03%]
筒形流化床中非球形粒子的磁性示踪追踪技术研究
Kay A Buist,Pavithra Jayaprakash,J A M Kuipers et al.
Kay A Buist et al.
In granular flow operations, often particles are nonspherical. This has inspired a vast amount of research in understanding the behavior of these particles. Various models are being developed to study the hydrodynamics involving nonspherica...
Splitting CO2 with a ceria-based redox cycle in a solar-driven thermogravimetric analyzer [0.03%]
一种基于二氧化铈的还原氧化循环在太阳能驱动热重分析仪中分解二氧化碳
M Takacs,S Ackermann,A Bonk et al.
M Takacs et al.
Thermochemical splitting of CO2 via a ceria-based redox cycle was performed in a solar-driven thermogravimetric analyzer. Overall reaction rates, including heat and mass transport, were determined under concentrated irradiation mimicking re...
A New Differential Pressure Flow Meter for Measurement of Human Breath Flow: Simulation and Experimental Investigation [0.03%]
一种新的差压流量计：用于测量人体呼吸流量的仿真和实验研究
Devon Bridgeman,Francis Tsow,Xiaojun Xian et al.
Devon Bridgeman et al.
The development and performance characterization of a new differential pressure-based flow meter for human breath measurements is presented in this article. The device, called a "Confined Pitot Tube," is comprised of a pipe with an elliptic...
Maria N Pantzali,Jelena Z Kovacevic,Geraldine J Heynderickx et al.
Maria N Pantzali et al.
A unique normalized radial pressure profile characterizes the bed of a gas-solid vortex reactor over a range of particle densities and sizes, solid capacities, and gas flow rates: 950-1240 kg/m3, 1-2 mm, 2 kg to maximum solids capacity, and...
Comparison of Parameter Estimation Methods in Stochastic Chemical Kinetic Models: Examples in Systems Biology [0.03%]
基于系统生物学实例的随机化学动力学模型参数估计方法比较研究
Ankur Gupta,James B Rawlings
Ankur Gupta
Stochastic chemical kinetics has become a staple for mechanistically modeling various phenomena in systems biology. These models, even more so than their deterministic counterparts, pose a challenging problem in the estimation of kinetic pa...
Temperature gradients drive radial fluid flow in Petri dishes and multiwell plates [0.03%]
温度梯度驱动培养皿和多孔板中的径向流体流动
Stephen M Lindsay,John Yin
Stephen M Lindsay
Liquid in a Petri dish spontaneously circulates in a radial pattern, even when the dish is at rest. These fluid flows have been observed and utilized for biological research, but their origins have not been well-studied. Here we used partic...