Results 111 to 120 of about 585,172 (311)

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Motion-induced eddy current testing of composite materials [PDF]

, 2016
Modern composite materials are gaining more and more importance in mechanical engineering. Due to the complex structure of most of these materials, traditional NDT methods do not satisfy the measurement requirements.
Weise, Konstantin, Ziolkowski, Marek, Schmidt, Reinhard, Mengelkamp, Judith, Gorges, Stephan, Brauer, Hartmut, Carlstedt, Matthias   +6 more
core  

Effect of the stretch rate during uniaxial testing on the mechanical properties of prolene

, 2012
We assess the effects of stretch rate on the mechanical properties of Prolene® (Ethicon, Gynecare, Somerville, NJ, USA), a knitted polypropylene mesh. Prolene® , consisting of macroporous knitted polypropylene, is considered here as a suitable proxy to ...
Bazi T.M., Hamade R.F., Ammouri A.H.
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source

Mechanical Behavior of UO2 at Sub-Grain Length Scales: A Quantification of Creep Properties via High Temperature Mechanical Testing

, 2016
In this work, creep behavior was quantified via high temperature mechanical testing; to facilitate this, techniques were developed to: 1) measure plasticity and creep properties samples at sub-grain length scales using ex-situ mechanical testing at ...
Pedro D. Peralta, Harn C. Lim, Benjamin E. Shaffer, Robert E. Mcdonald   +3 more
core   +1 more source

Fatigue Damage Assessment of Turbine Runner Blades Considering Sediment Wear

Applied Sciences
The wear phenomenon that occurs on the blades during operation has a significant impact on the fatigue life of the blades. To address the issue of fatigue life assessment for turbine runner blades subjected to increased dynamic stress due to sediment ...
Haifeng Chen, Jun Pan, Shuo Wang, Jianfeng Ma, Weiliang Zhang   +4 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Mechanical and metallurgical properties of two-layered diamalloy 4010 and 2002 HVOF coating [PDF]

, 2011
Diamalloy 4010, which is iron/molybdenum blend, is resistive to wear and Diamalloy 2002 is resistive to corrosion and wear. However, combination of these powders in layered structure, may offer advantages over the individual powders.
AL-Shehri, Yasser Abdullah
core  

Testing of mechanical properties of sandwich structures

, 2022
Strukturni kompoziti zajednički su naziv za slojevite kompozitne materijale i sendvič konstrukcije. Glavni konstituenti sendvič kompozita su čvrsti vanjski slojevi i mekana jezgra niske gustoće.
Lončar, Lucija
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