Answer: There are two types of software that are available for use withinmachines; system software and application software. System softwarerefers to programs that are used to control the operation ofhardware components in a machine while application software areprograms built to help users accomplish given tasks.
Answer: Activated sludge, as the adsorbent of humid acid in solution, was considered as an environment-friendly material. The effects of three categories of metal ions on sorption of humic acid by activated sludge were studied. The results indicated that the salts (Na+), hardness (Ca2+ , Mg2+) and hydrolyzing metal (Al3+, Fe3+) ions were able to increase the efficiency of adsorption. In view of coagulant aids, the hardness metal ions would be a better choice at the concentration higher than 10(-2) mol/L. Addition of 10(-2) mol/L Ca2+ and Mg2+ to the solution resulted in the concentrations of humid acid of (0.64 +/- 0.17) mg/L and (2.32 +/- 0.40) mg/L, respectively, in 48 h with corresponding removal efficiencies of 98.4% and 94.2% . Upon increasing the concentrations of Ca2+ and Mg2+ in the solution to 10(-1) mol/L, the removal efficiencies were close to 100% after 48 h. Moreover, the effect of Ca2+ was superior to that of Mg2+. Decrease in thickness of the electric double layer due to repulsion forces, cationic bridge, destabilization and precipitation might be the major mechanisms to promote the removal of humic acid in solution. On the other hand, the addition of metal irons might have resulted in physical changes in sorption site on the activated sludge, even inactivation, and might have caused negative effects on humid acid adsorption.
Answer: The six categories of Technology are: 1- Transportation Technology, 2- Energy/Power Technology, 3- Bio-Relative Technology, 4- Construction Technology, 5- Manufacture Technology, & last but certainly not least Communication Technology!!:)
A disease causing agent is often referred to as a pathogen. A pathogen, such as a virus or a strain of bacteria can enter the body and cause a host of symptoms. Many times, these symptoms collectively indicate the presence of a type of disease and/or infection.
Answer: In general health terms, the basic principles of disease-occurrenceinclude the following: First, there must be an active disease-agentof some kind present in or near an organism that is subject to itsoperation. Second, the organism must be in a receptive state to thedisease-agent, that is, must be penetrable in some manner by thedisease-agent. Third, upon penetration of the host-organism, thedisease-agent must be strong enough (whether in respect to internalpotency, ineffective host-organism defenses, or absence ofhost-organism defenses) to plant and grow within the host-organism.
Answer: The basic equipment that is needed for basic trauma life supportincludes a portable oxygen apparatus, a bag-valve mask, salinedrops and cervical collars. Other items of importance are athermometer, stethoscope and intravenous catheters.
Answer: The two categories of due process are substantive due process and procedural due process. Substantive due process relates to liberty interests protected by the Constitution; procedural due process ensures legal proceedings are conducted in a fair and consistent manner.
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