Results 81 to 90 of about 29,775 (173)

Superficial Ewing Sarcoma of the Rectum: A Case Report and the Utility of Molecular Diagnostics

Journal of Cutaneous Pathology, Volume 53, Issue 10, Page 917-920, October 2026.
ABSTRACT Ewing sarcoma is an undifferentiated small round cell sarcoma that most commonly presents as a malignant bone tumor in pediatric and young adult patients. The diagnosis is typically confirmed by molecular genetic identification of a fusion protein, most commonly involving members of the FET and ETS gene families.
Jessica L. Muldoon, Laura M. Warmke, Ahmed K. Alomari, Rachel P. Kowal   +3 more
wiley   +1 more source

Assessing the Impact of Sea Surface Temperature Biases in CMIP6 Coupled Models on the North Pacific Westerly Jet

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study investigates the impact of sea surface temperature (SST) biases on the latitude of the climatological North Pacific westerly jet using multi‐model analyses and atmospheric general circulation model (AGCM) sensitivity experiments. A comparison of atmospheric‐only and coupled simulations from 35 models participating in the Coupled ...
Yusuke Ushijima, Ryo Mizuta, Shion Sekizawa, Hiroyuki Tsujino   +3 more
wiley   +1 more source

Cyclic heat release variability in a spark ignition engine under exhaust gas recirculation

MATEC Web of Conferences, 2019
We have studied cyclic heat release variability in a spark-ignition engine under exhaust gas recirculation (EGR), using nitrogen to simulate EGR. Five EGR levels are examined. We used wavelet analysis to identify the dominant modes of fluctuation and how
Sen Asok K., Litak Grzegorz, Wagner Robert M.   +2 more
doaj   +1 more source

Effects Of Various Drive Cycles On Egr Cooler Contamination And Contamination On Egr Valve Position [PDF]

, 2010
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2010Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2010Egzoz Gazları Resirkülasyonu (EGR), bir miktar egzoz gazını emme kanalına ...
Tekin, Şerif Can
core  

Numerical Investigation of the Applicability of Low-Pressure Exhaust Gas Recirculation Combined with Variable Compression Ratio in a Marine Two-Stroke Dual-Fuel Engine and Performance Optimization Based on RSM-PSO

Journal of Marine Science and Engineering
In this paper, a novel technical route, namely combining the low-pressure exhaust gas recirculation (LP-EGR) and variable compression ratio (VCR), is proposed to address the inferior fuel economy for marine dual-fuel engines of low-pressure gas injection
Haosheng Shen, Daoyi Lu
doaj   +1 more source

Direct-EGR applied on HCCI

, 2006
The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of low NO x, low particulates and high efficiency. Due to its homogeneous charge, where the combustion starts almost simultaneously from a number of points in the combustion ...
Tydal, Freddie, Ståhl, Daniel
core   +2 more sources

Transient EGR in a High-Speed DI Diesel Engine for a set of different EGR-routings

, 2010
EGR has been proven to reduce NOx emissions from diesel engines significantly and is nowadays widely used in production engines. To reach future emission legislation standards, alternative EGR-routings that deliver higher EGR- rates get into the focus of
Reifarth, Simon,, Ångström, Hans-Erik,
core   +1 more source

Model Based EGR Control

, 2017
Almost stationary control of the correct EGR rate (Exhaust Gas Recirculation) is state of the art. More aggressive emission tests such as WLTP and RDE require a dynamic control of the EGR rate, otherwise a too low EGR rate results in increased NOx ...
Stein, Simon (M.Eng.), Borgeest, Kai (Prof. Dr.-Ing.); https://orcid.org/0000-0003-4289-0083, Höfer, Patrik (B.Eng.), Seubert, Michael (M.Eng.)   +3 more
core   +1 more source

Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions

Fuel Processing Technology
Using exhaust gas recirculation (EGR) is a potential way to modulate the combustion process and improve the performance of a compression-ignition engine.
Huiquan Duan, Wei Cao, Chongchong Ren, Min Liu, Shuzhan Bai, Guoxiang Li   +5 more
doaj   +1 more source

Zero Dimensional Models for EGR Mass-Rate and EGR Unbalance Estimation in Diesel Engines

, 2017
A precise estimation of the recirculated exhaust gas rate and oxygen concentration as well as a predictive evaluation of the possible EGR unbalance among cylinders are of paramount importance, especially if non-conventional combustion modes, which ...
Stefano D'Ambrosio, Alessandro Mancarella, Nicolò Salamone, Roberto Vitolo, Gilles Hardy, Vitolo, Roberto, Salamone, Nicolò, Hardy, Gilles, Daniele Iemmolo, D'ambrosio, Stefano, Iemmolo, Daniele, Mancarella, Alessandro   +11 more
core   +1 more source