It is to prevent the cell from washing away during the staining and washing process. Then, it is air dried and followed by fixing it with flame from Bunsen burner. After fixing the smear, it must be stained using Gram staining solution, firstly crystal violet solution was flood onto it, and allowed for 1 minute, then wash off with tap water. Then, flood the slide with iodine solution for 1 minute and wash it off with tap water again. The formation of a dye-iodine complex will occur in the cytoplasm.
Preliminary devices are designed to remove or cut up the larger suspended and floating solids, to remove the heavy inorganic solids, and to remove excessive amounts of oils or greases. To affect the objectives of preliminary treatment, the following devices are commonly used: 1. Screens - rack, bar or fine 2. Commenting devices -- grinders, cutters, shredders 3. Grit chambers 4.
Have you ever wondered what grocery stores would do without plastic bags? Stores would have to start using reusable bags and without the plastic bags there would be less liter. Other people all around the world are having a debate whether they should ban plastic bags or not. Many people are taking the ban very seriously and believe that they should ban the plastic bags. The U.S. should ban plastic bags because they cause litter, they cost too much, and they can damage to marine life and livestock.
Since the mold need not be opened complex geometries of the turbine blades can be made by combining several wax patterns. A mold from which a pattern can be made is also machined as the wax patterns are destroyed each time a mold for casting is made. • Mold making for investment casting: The pattern is dipped in a refractory slurry which deposits a layer of ceramic coating over it. The pattern is repeatedly dipped to increase the thickness of the ceramic layer. After the desired thickness is deposited the pattern with ceramic mold is allowed to dry in air to harden.
After filtration process, before it flows into the storage reservoir, the water is disinfected by using chlorine. On the other hand, fluorine also can be added due to its ability to retard tooth decay. Then, the treated water is pumped by using high-lift pumps into the distribution system which will be distributed to customers and also to maintain water levels in storage. However, latest water treatment
The first step in the process is to create a substrate in the first cavity, which receives material from one of the two injection units. The tool then opens to allow for a 180° rotation to a secondary position after the finished part is removed from the second stage cavity. As the tool closes, the second step commences by positioning the previously molded substrate into the second cavity. The second cavity receives the material from the second injection unit completing a finished part, this occurs simultaneously as the substrate for another part is being molded. The key benefits of the ‘Two-Shot’ injection moulding are as
The natural fibre used in the manufacturing process of paper bags and also it’s easily recyclability helps to reflects towards a positive portrait of paper bags (Bazerman et al, (1996)75). In the New Zealand, paper bags are offered as a substitute of plastic shopping bags. Therefore; it can be noticed that a large amount of stores in New Zealand give choice to their customers by showing paper bags for the marketing as well as branding purpose, instead of, the efficiency of resources. As compared to plastic bags, paper bags are often very expensive ( (ACG, 2006 ) (EPCH, 2007). Due to the lack of resources; currently, there is no incentive found for replacing plastic bags with paper bags.
Energy costs are also higher because of the need for air scouring to control bacterial growth on the membranes. Therefore, during the actual operating and production process, the total operation cost of the conventional processing is higher and may equal to innovative one or even higher. In other words, the combine capital cost and operation cost of innovative refinement macro encapsulation is economic achievable than the
Recycling promotes component from waste to be re-used. For recycling to be successful is mostly dependent on the market available of raw and re-manufactured products. Economically, recycled products should be priced at a rate that covers the costs of recovering and re-manufacturing. The amount of money is dictated by recycled material’s is highly dependent on their quality. Clean, well-sorted and non- contaminated secondary material attracts a higher price than a mixed, low quality.