Results 101 to 110 of about 11,940,761 (361)
Comparative study of alternative biofuels on aircraft engine performance
, 2017 Aviation industries are vulnerable to the energy crisis and simultaneously posed environmental concerns. Proposed engine technology advancements could reduce the environmental impact and energy consumption. Substituting the source of jet fuel from fossil-
M. H. Azami, M. Savill
semanticscholar +1 more source
Molecular Oncology, EarlyView.Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee +8 more
wiley +1 more source
Research status and prospects of free-form surface modeling theory for CAD, CAE and CAM
Xibei Gongye Daxue XuebaoFree-form surface modelling theory is the study of how to describe and construct free-form surfaces in the computer, and how to interactively display, modify and control them.
HAN Feiyan +5 more
doaj +1 more source
Engineering the Performance [PDF]
Social Studies of Science, 2004 At the dawn of sound recording, recordists were mechanical engineers whose only training was on the job. As the recording industry grew more sophisticated, so did the technology used to make records, yet the need for recording engineers to use craft skill and tacit knowledge in their work did not diminish.
openaire +1 more source
Progress with variable cycle engines [PDF]
The evaluation of components of an advanced propulsion system for a future supersonic cruise vehicle is discussed. These components, a high performance duct burner for thrust augmentation and a low jet noise coannular exhaust nozzle, are part of the ...
Westmoreland, J. S.
core +1 more source
Molecular Oncology, EarlyView.Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley +5 more
wiley +1 more source
The Effect of Spark Timing on the Spark Ignition Engine Performance
Tikrit Journal of Engineering Sciences, 2011 In this work the effect of spark timing on the spark ignition engines is investigated by computer simulation and experimental test for speeds of (1500,2000,2500,3000 and 3500)rpm at spark timing of (20o,30o,40o,50o and 60o) before TDC for each speed ...
Rafeq Ahmad Khalefa
doaj +1 more source
Molecular Oncology, EarlyView.Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova +25 more
wiley +1 more source
A Probabilistic Design Methodology for a Turboshaft Engine Overall Performance Analysis
Advances in Mechanical Engineering, 2014 In reality, the cumulative effect of the many uncertainties in engine component performance may stack up to affect the engine overall performance. This paper aims to quantify the impact of uncertainty in engine component performance on the overall ...
Min Chen, Kun Zhang, Hai-Long Tang
doaj +1 more source
Inlet Reynolds number and temperature effects on the steady-state performance of a TFE731-2 turbofan engine [PDF]
Effects of varying engine inlet Reynolds number index (0.75, 0.50, 0.25, and 0.12) and temperature (289 and 244 K) on a TFE731-2 turbofan engine were evaluated.
Bobula, G. A., Lottig, R. A.
core +1 more source