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TOP
AaronEzekiel
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Industry info
Wiki
Q&A
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Q
how many peptide does an amino acid
RegPerkin
AaronEzekiel
Release Time:
August 15, 2024, 8:17 AM
The question “How many peptides does an amino acid?” seems to misunderstand the relationship between amino acids and peptides. Amino acids are the monomeric units that make up peptides. A single amino acid cannot form a peptide on its own. Peptides are formed when two or more amino acids are linked together via peptide bonds in a dehydration synthesis reaction. The smallest peptide, a dipeptide, is made of two amino acids. As more amino acids join, larger peptides or even proteins (which are long chains of amino acids) can be formed. Therefore, it’s not about how many peptides an amino acid can make, but rather how amino acids combine to form peptides.
0
Q
is the fn five seven all polymers
GwendolynBart
AaronEzekiel
Release Time:
August 11, 2024, 9:04 AM
The FN Five-seven, manufactured by Fabrique Nationale (FN) of Belgium, is not entirely made of polymers. This semi-automatic pistol features a significant polymer component, primarily in its frame, which reduces weight and enhances ergonomics. However, critical parts like the slide, barrel, and internal mechanisms are typically constructed from metals for durability and functionality. Using polymers in firearms has become more common due to their strength-to-weight ratio and corrosion resistance. While the FN Five-seven does incorporate polymers extensively, it remains a hybrid design combining both metal and polymer components.
0
Q
does jb weld plastic epoxy work on metal
HilaryMay
AaronEzekiel
Release Time:
August 9, 2024, 5:18 AM
JB Weld Plastic Epoxy is designed primarily for plastic repairs, but its versatile formulation allows it to adhere to metal surfaces as well. The effectiveness of JB Weld Plastic Epoxy on metal depends on the specific application and the types of metal involved. For best results, surfaces should be clean and roughened to enhance adhesion. While this epoxy can provide a strong bond on metal, for high-stress or structural applications, a product specifically formulated for metal might yield better durability and strength. Always check the product’s specifications and compatibility with the materials in your project.
0
Q
is polyethylene vinyl acetate thermoplastic
LillianHubbard
AaronEzekiel
Release Time:
August 8, 2024, 4:07 AM
Yes, Polyethylene Vinyl Acetate (EVA) is a thermoplastic material, characterized by its excellent flexibility, rubber-like softness, and good clarity. It is a copolymer, blending properties of polyethylene (PE) and vinyl acetate, which results in EVA’s distinctive features that include low-temperature toughness, stress-crack resistance, waterproof properties, and UV radiation resistance. This material is commonly used in various applications such as shoe soles, sports equipment, and packaging due to its ability to be processed through injection molding, extrusion, and blow molding techniques, similar to many other thermoplastics. EVA’s versatility and a blend of properties make it a preferred choice for products requiring clarity, flexibility, and durability.
0
Q
why are enzymes not polymers
AaronEzekiel
AriesBenson
Release Time:
August 2, 2024, 1:02 PM
Enzymes are actually considered to be polymers, specifically, they are proteins, which are natural polymers made up of amino acid monomers linked together by peptide bonds in a specific sequence. This sequence determines the unique 3D structure and function of the enzyme. Each enzyme’s active site is uniquely suited to bind a specific substrate and catalyze a particular reaction, thus facilitating biological processes with remarkable specificity and efficiency. Saying enzymes are not polymers contradicts their molecular composition. However, confusion may arise because enzymes are functional biological molecules with catalytic roles, distinguishing them from structural polymers or those used in synthetic materials, which are often the focus when discussing polymers in a general context.
0
Q
is a starch a polymer
JillTrevelyan
AaronEzekiel
Release Time:
August 1, 2024, 2:14 AM
Yes, starch is a polymer. It is a polysaccharide, which means it is made up of multiple sugar molecules bonded together. Starch is primarily composed of amylose and amylopectin, which are both long chains of glucose units. The formation of these chains involves glycosidic bonds, linking each glucose unit to the next. This structure is what qualifies starch as a polymer, as it is a large molecule made up of repeating smaller units. Starch is a key form of carbohydrate in the human diet, providing a slow-releasing source of energy. It is also used industrially in the production of bio-plastics, adhesives, and various food products due to its thickening and stabilizing properties. Understanding the polymeric nature of starch helps in exploring its functionality in both biological and industrial applications.
0
Q
how to laminate plywood sheets together with epoxy
AaronEzekiel
DerrickIsabel
Release Time:
July 31, 2024, 9:21 AM
[Laminating plywood sheets with epoxy involves applying a layer of epoxy resin between the sheets and clamping them together until the epoxy cures. First, ensure surfaces are clean and smooth. Mix the epoxy resin and hardener according to the manufacturer’s instructions. Apply a thin, even coat of epoxy on one surface of each sheet of plywood you intend to laminate together using a roller or brush. Carefully align the sheets and press them together. Use clamps to apply even pressure across the entire surface and leave to cure for at least 24 hours. After curing, remove the clamps and finish the surface as needed. Use quality epoxy resin for the best bonding strength and water resistance.]
0
Q
are tarps made of polyethylene
AaronEzekiel
JoyceEva
Release Time:
July 30, 2024, 7:10 AM
Yes, many tarps are made from polyethylene due to its durable and waterproof nature. Polyethylene, a type of plastic, is known for its strength, affordability, and resistance to moisture, making it an ideal material for tarps. These tarps are used in a variety of applications including construction, agriculture, and for covering vehicles or boats to protect them from the elements. They come in various thicknesses and may be treated with UV inhibitors to extend their life when used outdoors. Despite the wide use of polyethylene, tarps can also be made from other materials like canvas or vinyl, which offer different benefits such as breathability or increased durability in harsh chemical environments. Choosing the right type depends on the specific needs and environmental conditions encountered.
0
Q
how are most manufacturing buildings injection mold ventilated
YorkBruno
AaronEzekiel
Release Time:
July 26, 2024, 9:14 AM
Most manufacturing buildings that employ injection molding are ventilated using a combination of natural and mechanical ventilation systems. The process involves melting plastic materials which can release harmful fumes and gases, making effective ventilation crucial for maintaining a safe working environment. Mechanical ventilation often includes local exhaust systems placed directly at the sources of emissions, such as the molding machines, to capture contaminants before they disperse into the air. This is supported by general ventilation systems that ensure a continuous flow of fresh air, helping to dilute and remove any residual contaminants. Additionally, air filtration systems are used to clean the air of particulate matter and fumes before it is recirculated or expelled outside. The design of the ventilation system depends on various factors including the size of the facility, the number of machines, the types of materials used, and local environmental regulations. Optimizing th...
0
Q
what happens to polymers during hydrolysis
AaronEzekiel
JosephineHicks
Release Time:
July 25, 2024, 3:24 AM
During hydrolysis, polymers undergo a chemical reaction wherein water molecules break the polymer’s long chains into shorter molecules through the cleavage of covalent bonds. This process is crucial in degrading synthetic polymers, which might otherwise persist in the environment for years, and is fundamental in biological systems where it breaks down natural polymers (like proteins, nucleic acids, and carbohydrates) into their monomeric units (amino acids, nucleotides, and sugars, respectively). The speed and efficiency of hydrolysis depend on the type of polymer and the conditions, including pH, temperature, and the presence of catalysts or enzymes. In synthetic polymers, for instance, PET (polyethylene terephthalate) can be hydrolyzed to its monomers, ethylene glycol and terephthalic acid, which can then be reused. In biological contexts, enzymes are often the catalysts enhancing the hydrolysis rate, showcasing the process’s vital role in recycling biological macromolecu...
0
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