Password policies alone do not stand a chance of securing computer systems which rely on the use of secretbased, password authentication methods. The enforcement of “strong” passwords via pro-active password strengthening utilities and password cracking tools should be employed by system administrators to reduce the number of “weak” passwords in a computer system. With the availability of low-c...

In this letter, the quantity effect of radial cracks on the cracking propagation behavior as well as the circular crack generation on the impacted glass plate within the sandwiched glass sheets are experimentally investigated via high-speed photography system. Results show that the radial crack velocity on the backing glass layer decreases with the crack number under the same impact conditions ...

The three major distress conditions affecting the performance of asphalt pavements are permanent deformation or rutting, fatigue or load associated cracking, and low temperature or thermal cracking. In an earlier technical topics article (Fall, 1998), we examined the causes of fatigue cracking and the importance of good compaction during construction to help minimize this type of distress. In t...

Selective laser-melted (SLMed) 7075 aluminium alloy is prone to cracking. Erbium (Er) could modify the alloys prevent cracking in traditional manufacturing processes. In present study, Er-modified powders are prepared investigate influence of Er element on crack reduction SLM. The evolution characterised by a scanning electron microscope (SEM), X-ray diffraction (XRD) and high-resolution transm...

Database indices provide a non-discriminative navigational infrastructure to localize tuples of interest. Their maintenance cost is taken during database updates. In this work we study the complementary approach, addressing index maintenance as part of query processing using continuous physical reorganization, i.e., cracking the database into manageable pieces. Each query is interpreted not onl...

The biomineralization technique of crack remediation in construction mortar can be achieved through the incorporation calcifying bacteria within matrix. However, thermal and autogenous shrinkage associated with hydration cement detrimental to survival bacterial spores. Encapsulation spores a matrix such as superabsorbent hydrogels, specifically sodium alginate, provide protection from condition...

Cracking furnace system is the starting and the most critical sector of an ethylene plant where heavier components are cracked into lighter products, such as ethylene, propylene, and etc. During the production, coking can adversely affect the manufacturing performance, such that furnaces have to be decoked for some controlled time. The cracking and decoking processes both influence the plant pr...