Deposition is an a natural geological process that transports sand, silt and sediment between locations. This natural wear-and-tear process wears away at rocks while producing sediment that becomes the building blocks for new rock formations such as beaches or seashores.
Natural agents such as water, wind and glaciers all play an important role in how far deposited sediment travels; particle size also has an impact on this.
Semiconductor Manufacturing
Silicon wafers are transformed into circuit chips by means of semiconductor manufacturing, an intricate multi-step photolithographic and physio-chemical process which involves growing thin dielectric layers, etching them away, implanting dopant atoms to control semiconductor characteristics, and implanting dopant molecules onto dopant spots on wafers.
Deposition processes provide the insulating and metal layers necessary for creating semiconductor devices, including copper plating for interconnecting devices on chips while chemical vapor deposition and atomic layer deposition produce specialty metallic films for modern semiconductors.
Researching new materials that can enhance performance is an integral component of industry, but must still fit seamlessly with existing semiconductor fabrication processes. Therefore, researchers must take into account a range of factors when selecting suitable semiconductor materials – including their chemical, physical and thermal properties as well as processing temperatures tolerance as well as compatibility with other steps of fabrication processes.
Environmental Impact
Environmental impact refers to any impact an activity has on the environment, whether positive or negative. It could include anything from air and water quality used by individuals to food production or energy availability – even including any loss of biodiversity that results.
Atmospheric pollution caused by sulfur and nitrogen deposition is a major stressor on natural ecosystems, contributing to acidification of lakes, streams and rivers, eutrophication of forests and soils as well as bioaccumulation/biomagnification processes in plants and animals.
Under the National Environmental Policy Act (NEPA), both states and EPA possess wide authority to condition or deny project approvals, including creating an Environmental Impact Statement (EIS). The process starts with “scoping”, where public and tribal government representatives can give input on which alternatives, areas of impact and mitigation measures that the EIS should assess; scoping meetings are frequently held during this time.
Forensic Science
Forensic science applies the techniques of chemistry, physics, biology, and math to legal situations. Forensic scientists apply their expertise in questions of fact or law related to signature verification on documents or environmental violations; criminal and civil investigations; as well as litigations are all areas in which this field can be applied.
Forensic scientists may be called upon to analyze evidence at crime scenes, collect samples for further study or give testimony in court about their conclusions. Their work requires them to collaborate with many different types of individuals; at times this can be emotionally taxing.
Forensic sciences span an expansive field, including criminalistics, forensic anthropology, wildlife forensics and trace evidence analysis. Some disciplines within forensic science – like criminalistics or limnology – become independent subfields while others, like digital and multimedia forensics or mobile device forensics still fall under its general heading. Due to this diversity within forensic sciences it offers opportunities for multiple careers including laboratories for insurance companies or homeland security agencies as well as expert testimony for legal cases.