Acid Mine Drainage (AMD) and Control Options
AMD comes from the oxidation of sulphide minerals. It has the negative impact on the environment. Since it could affect the surface water, ground water quality and land used. This condition due to the low pH contains by the water (could reach up to 2), sulphate content (SO4), and metals content (Fe, Zn, Cu, Ni, As, Cd).
The principles for AMD formation should be understood to be able to manage the water.
i. Waste containing reactive sulphide (S2-, S22-)
ii. Elemental sulphur (S0) and others sulphur intermediates (Thiosalt, S2O3¬)
iii. Molecular oxygen
Furthermore, the rate of AMD generation is known by the following factors:
• bacterial activity
• the presence of…
AMD has incorporated strategies that integrates IT solutions across all the teams with the help of IT to support efficient and responsive supply chain management. A standard ERP (Enterprise Resource Planning) system, SAP has been adopted.
AMD uses hybrid Push-Pull: Batch dynamic production controls.
Current supply chain challenges that AMD is facing:
• Economic uncertainty due to global presence
• Pressures from competition
• Sensitive towards cost
• Different technical challenges
types of immune cells in AMD eyes indicate that this privilege is likely revoked. The immune-privileged of retina is achieved by formation of vascular barrier and secretion of immunosuppressive molecules. RPE cells can modulate retinal immune response by secretion of immunosuppressive molecules PGE2 and PEDF to suppress T cell and macrophage activation, respectively [11, 12]. In addition, challenging RPE cells with excessive amount of preoxidized photoreceptor outer segments (Ox-POS) can…
Intel and AMD are two companies that operate in the semiconductor industry. Although they are in the same industry they are very different in terms of market capitalization with Intel being valued at $149.55 billion and AMD being valued at $3.80 billion. The differences are also showcased in their stock returns.
Intel’s average annual three-year return is 9% while AMD’s is 2%. Therefore, Intel has produced a higher return for their investors over the previous three years. But when comparing…
What results would lead you to the conclusion that the material tested has high potential for AMD generation and would indicate that more extensive and intensive tests should be done to confirm the results.
When looking at the Paste pH and Electrical Conductivity Tests, we are looking for an acidic environment and an environment with a high concentration of salt. Specifically, if our site sample has a pH of less than 4, then that indicates that the sample is acidic. If our site sample has an…
If you don’t know anything about central processing units, then you should probably go sky diving and jump without a parachute. Today, we will deliberate about the revolutionary technology that is being brought to us by AMD and Intel. Before we start, I would like to clear any confusion by going over terms that should be discerned and understood. Overclocking is the process that involves virtually increasing the speed/frequency of a processor. Cores and threads are the exact same thing, and they…
SWOT Analysis for Intel and AMD
i. Strong Brand Reputation
• Largest semiconductor-making company (Ullah & Salam n.d.), 107,600 employees worldwide under the company (Intel n.d.).
• Has largest number of global technology corporations and huge annual profits. The year 2013 net revenue of the company was $52.7 billion (Intel n.d.).
• Initially famous for engineers and technologists, but known as Pentium processors after the launching of ‘Intel Inside’ campaign (Sample of…
of findings- Page 5
Conclusion- Page 8
Reference list- Page 8
The research that I have conducted on acid mine drainage (to be referred to as AMD throughout the contents) has been to investigate the effects of AMD on the environment with a more definite focus on the effects that AMD has on plant life. The aim of this research is to determine the impact that AMD has on the environment.
The hypothesis of my research is that AMD retards growth of plants and is damaging to the…
and decrease in cell density. Despite the morphological changes are profound, aged healthy RPE monolayer remains intact and functional. However, in age-related macular degeneration (AMD), loss or degeneration of RPE cells on the macular region can lead to degeneration of photoreceptor and lose of the central vision. Numerous factors have been proposed as potential AMD pathogens including accumulation of drusen, genetic mutation in complement factors, inflammatory response, photooxidative stress,…
Macular Degeneration Special Senses
Macular Degeneration, also called age-related macular degeneration AMD for short, is a disease that affects the sight of a person. Macular degeneration is the leading cause of blindness in America. It affects people between sixty five and older, which is a large proportion of Americans today.
The macula, an oval shaped pigment near the near the center of the retina, is responsible for the sharp, high-acuity, central vision. Within the macula are the…