نتایج جستجو برای: cracking furnace

تعداد نتایج: 20811  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Dorothy M Fragaszy Yonat Eshchar Elisabetta Visalberghi Briseida Resende Kellie Laity Patrícia Izar

Culture extends biology in that the setting of development shapes the traditions that individuals learn, and over time, traditions evolve as occasional variations are learned by others. In humans, interactions with others impact the development of cognitive processes, such as sustained attention, that shape how individuals learn as well as what they learn. Thus, learning itself is impacted by c...

2014
Yulong Wang Ruifang Zhao Chun Zhang Guanlong Li Jing Zhang Fan Li

The catalytic cracking method of PAHs for the pyrolysis gaseous products is proposed to control their pollution to the environment. In this study, the Py-GC-MS is used to investigate in situ the catalytic effect of CaO and Fe2O3 on the 16 PAHs from Pingshuo coal pyrolysis under different catalytic temperatures and catalyst particle sizes. The results demonstrate that Fe2O3 is effective than tha...

2010
Joseph A. Swisher Niels Hansen Theo Maesen Frerich J. Keil Berend Smit Alexis T. Bell

The kinetics of alkane cracking in zeolites MFI and FAU have been simulated theoretically from first principles. The apparent rate coefficient for alkane cracking was described as the product of the number of alkane molecules per unit mass of zeolite that are close enough to a Brønsted-acid site to be in the reactant state for the cleavage of a specific C-C bond and the intrinsic rate coefficie...

2016
Longbiao Li

In this paper, the cyclic fatigue hysteresis loops of 2D woven SiC/SiC ceramic matrix composites (CMCs) at elevated temperatures in steam have been investigated. The interface slip between fibers and the matrix existing in matrix cracking modes 3 and 5, in which matrix cracking and interface debonding occurred in longitudinal yarns, is considered as the major reason for hysteresis loops of 2D w...

2011
Federico Hahn

Sunlight heats the greenhouse air temperature and tomato cracking decreases marketable product up to 90%. A shade screen reduced incoming radiation during warm and sunny conditions to reduce tomato cracking. A fuzzy controller managed greenhouse irrigation to reduce tomato cracking using as variables solar radiation and substrate temperature. The embedded controller presented 9 rules and three ...

Journal: :Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 2021

The whole process of the petrochemical industry involves flammable and explosive dangerous goods. timely discovery abnormalities or failures in is crucial to ensure production safety. This paper sets up approach build Digital Twin System (DTs) a process. Specifically, we decompose into five levels one by digital twin plug-in for each component layers, then inversely decouple assemble DTs layer ...

Journal: :The Review of scientific instruments 2009
Hemant Sharma Alix C Wattjes Murugaiyan Amirthalingam Thim Zuidwijk Nico Geerlofs S Erik Offerman

We report a multipurpose furnace designed for studies using synchrotron radiation on polycrystalline materials, namely, metals, ceramics, and (semi)crystalline polymers. The furnace has been designed to carry out three-dimensional (3D) x-ray diffraction measurements but can also be used for other types of synchrotron radiation research. The furnace has a very low thermal gradient across the spe...

2006
Jun-ichiro YAGI Hiroshi NOGAMI Aibing YU

This paper mainly emphasizes development of a multifluid blast furnace model and its application to simulate several innovative ironmaking operations. At first, the development process and framework of the model are briefly introduced. Then, model simulations on hydrogen bearer injection show that the enhancement of hydrogen reduction brings the improvement of furnace performance, especially fo...

2010
Chen-Yuan Lu Shan-Wen Du Shih-Kang Kuo CHEN-YUAN LU SHIH-KANG KUO

Gas permeability in a blast furnace is directly influenced by the burden profile, which is the result of the charging angle collocation. An obviously increment in both iron-making productivity and furnace campaign life will be observed in a high heat utilization furnace with uniform gas permeability. An online burden profile measuring device without gas leakage risks and heavy maintaining load ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید