Results 121 to 130 of about 645,874 (305)

Assessment of the impact of speed limit reduction and traffic signal coordination on vehicle emissions using an integrated approach

, 2011
This paper examines the effects of two traffic management measures, speed limit reduction and coordinated traffic lights, in an area of Antwerp, Belgium. An integrated model is deployed that combines the microscopic traffic simulation model Paramics with
Madireddy, Madhava Rao, Can, Arnaud, De Vlieger, Ina, Madhava Madireddy, Botteldooren, Dick, Bart Degraeuwe, Madireddy, Madhava, Beusen, Bart, De Coensel, Bert, Bart Beusen, Dick Botteldooren, Ina De Vlieger, Degraeuwe, Bart, Bert De Coensel, Arnaud Can   +14 more
core   +1 more source

Estimating PM-reductions from speed reduction policies

, 2007
Speed reduction measures have become an increasingly popular way to increase traffic safety especially in urban areas. Recently many cities have converted entire districts into 30 km/h zones. In many European countries the maximum speed of haulage trucks is under discussion or review sometimes in combination with a ban on overtaking.
INT PANIS, Luc, BECKX, Carolien, DE VLIEGER, Ina, SCHROOTEN, Liesbeth   +3 more
openaire   +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

Experimental aeroacoustics study on jet noise reduction using tangential air injection

, 2011
PhDAircraft jet exhausts are a source of undesirable noise and continue to be an area of investigation driven by increasingly stringent regulation. The noise is produced by the unsteady mixing of the jet with the surrounding air and is dominated by the ...
Ahmad, Arsalan
core  

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

Inscribed-type spherical speed reducer with uniform reduction ratio in all directions

Results in Engineering
A spherical motor is an actuator that can generate rotational motion about all three orthogonal axes. However, it is difficult to obtain high output torque from most electromagnetic spherical motors, primarily due to limitations inherent in ...
Seiya Naramura, Koichi Tonegawa, So Shimooka, Tomoaki Yano, Akio Gofuku, Nagayoshi Kasashima, Tetsushi Kamegawa   +6 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

The Impact of Speed Cameras on Speed-related Crashes over Time

, 2003
Since speed cameras were introduced in Queensland in May 1997 there has been a steady increase in the number of speed camera sites and the number of operational hours. However, infringements have not risen in line with this increase in speed enforcement.
Champness, Philip G., Folkman, Lisa-Marie   +1 more
core  

Measurement of Ultra-High Speed by Optical Multistage Cascade Frequency Reduction Technology

Applied Sciences
In order to reduce the frequency of high-frequency Doppler signal light, the electronic bandwidth of a data acquisition system is reduced. This paper mainly describes the principle and experimental verification results of optical multistage cascade ...
Heli Ma, Long Chen, Wei Gu, Cangli Liu, Longhuang Tang, Xing Jia, Tianjiong Tao, Shenggang Liu, Yongchao Chen, Xiang Wang, Jian Wu, Chengjun Li, Dameng Liu, Jidong Weng, Huan Liu   +14 more
doaj   +1 more source