搜索结果: 1-15 共查到“Cracking”相关记录49条 . 查询时间(0.56 秒)
In order to remember long passwords, it is not uncommon users are recommended to create a sentence which then is assembled to form a long password, a passphrase. However, theoretically a language is v...
Some Remarks on Honeyword Based Password-Cracking Detection
authentication password security honeywords
2016/1/23
Recently, Juels and Rivest proposed honeywords (decoy passwords) to detect attacks against hashed password databases. For each user account, the legitimate password is stored with several honeywords...
Cracking-Resistant Password Vaults using Natural Language Encoders
Honey Encryption Password Password vault
2015/12/24
Password vaults are increasingly popular applications that store multiple passwords encrypted under a single master password that the user memorizes. A password vault can greatly reduce the burden on ...
Terrazzo is a material often used for flooring and consists of an aggregate (typically marble, though glass or other materials are common) in a matrix of cementitious or epoxy material. The aggregate ...
Effect of 1-Methylnaphthalene Solvent on Cracking of Oil Sand Bitumen with Iron Oxide Catalyst in Steam Atmosphere
Oil sand bitumen Steam catalytic cracking Iron oxide catalyst 1-Methylnaphthalene
2010/9/8
Catalytic cracking of bitumen with steam was examined. The heavy oil fraction of bitumen reacted with active oxygen species generated from steam with the iron oxide catalyst, producing significant amo...
Oxidative Cracking of Aromatic Compounds Related to Lignin Constituents with Steam Using ZrO2–Al2O3–FeOx Catalyst
Iron oxide catalyst Biomass Lignin-constituent aromatic Phenol Oxidative cracking
2010/9/8
The catalytic activity of iron oxide composite catalyst (ZrO2–Al2O3–FeOx) was investigated for converting aromatic compounds derived from plant biomass into useful aromatics. Catalytic cracking of lig...
Effect of Additives on Catalytic Cracking of Biomass Gasification Tar over a Nickel-Based Catalyst
biomass gasification tar supported catalyst palygorskite nickel additive carbon deposition tar removal
2011/11/14
The palygorskite-supported nickel (Ni/PG) catalysts were modified by loading with several additives (Fe, Mg, Mn, and Ce) by
incipient wetness impregnation. The effect of the additives and their conte...
Partial regeneration of Ni-based catalysts for hydrogen production via methane cracking part II: modeling and optimization
Thermo catalytic cracking of methane hydrogen filamentous carbon partial regeneration Ni/g-Al2O3 catalyst kinetic modeling estimation of rate constant
2010/4/8
Partial regeneration of Ni-based catalysts for hydrogen production via methane cracking part II: modeling and optimization.
Application of element deletion method for numerical analyses of cracking
Cracking Element deletion method Specific plastic work
2009/12/14
Purpose: To develop a numerical algorithm to simulate cracking and its evolution for machining, shearing and multi-pass hot bar rolling processes.
Design/methodology/approach: Element deletion method...
Influence of Catalyst Type and Regeneration on Upgrading of Crude Bio-oil through Catalytical Thermal Cracking
catalytic cracking biomass catalyst
2009/11/16
Catalysts, such as HZSM-5(Si/Al=50), HZSM-5(25), zeolite 5A, CaHZSM-5(50), ZnHZSM-5(50), and Kaolin were used in upgrading of crude biomass oil from pyrolysis in a fixed-bed reactor under atmospheric ...
Die-casting dies are exposed to high thermal and mechanical loads. Thermal fatigue cracking of dies due to
thermal cycling may importantly shorten the life-time of the die. Cracks degrade the surface...
Design,Manufacture and Investigation of Cracking Efficiency of a Stone Cracking Machine with Periodic Loading and Sloping Jaw
Stone cracking machine Apricot and Almond
2009/10/13
In this study, a stone cracking machine with periodic loading, and a shaky and sloping jaw which breaks apricot and almond stones was designed and manufactured. For determining the cracking eciency o...
VAPOUR PHASE CRACKING OF TAR FROM PYROLYSIS OF BIRCH WOOD
wood pyrolysis tar cracking secondary reaction
2009/10/13
The vapour phase cracking of tar from pyrolysis of birch wood (particles, 0.5-1.0 mm) was studied in a thermogravimetric analyser (TGA) and in a coupling of the TGA with a consecutive tubular reactor....
Effects of Welding Pulse Energy and Fluoride Ion on the Cracking Susceptibility and Fatigue Behavior of Nd:YAG Laser-welded Cast Titanium Joints
Welding pulse energy Fluoride Mechanical property
2009/9/15
In this study, the cracking susceptibility and fatigue behavior of Nd:YAG laser-welded cast Ti joints (welding pulse energy: 11, 15, and 18 J) in fluoride-containing (0 and 0.5% NaF) artificial saliva...
稻秆气化焦油催化裂解脱除过程模型改进与优化（Improving and Optimizing the LS-SVM Model of the Rice Straw Gasification Tar Removal Process by Catalytic Cracking）
稻秆 气化 焦油催化裂解 模型改进 优化
2010/4/1
对所建立的稻秆气化焦油催化裂解脱除过程LS-SVM模型进行了改进，将原模型的核函数由高斯径向基RBF核函数改为线性lin核函数，并对改进以后的模型进行了验证，在此基础上对稻秆气化焦油催化裂解过程作了优化。结果表明，改进以后的模型具有更好的模拟效果和泛化能力，且当催化裂解温度为949.1356℃，气相停留时间为0.9819s时，焦油催化裂解率达到最大值98.6877%。 The LS-SVM mod...