2. Which of the following is an example of bottom-up approach for the preparation of nanomaterials? Explanation: Dip pen nanolithography is an example of bottom-down approach for the preparation of nanomaterials.
In this post
Which of the following is an example of bottom-up approach for the preparation of nanomaterials * 2 points?
Explanation: colloidal dispersion is an example of bottom up approach in the synthesis of nano particles.
Which of the following is an example of a bottom-up approach?
2. Which of the following is an example of Bottom Up approach? Explanation: Colloidal dispersion is an example of bottom up approach in the synthesis of Nano particles.
What are examples of bottom-up approach in nanotechnology?
Some of the methods used in bottom-up approach include plasma arcing, chemical vapor deposition process, metal organic decomposition, laser pyrolysis, molecular beam epitaxy, solgel method, wet synthesis, and self-assembly processes.
What is bottom up synthesis process of nanomaterials?
Bottom-up, or self-assembly, approaches to nanofabrication use chemical or physical forces operating at the nanoscale to assemble basic units into larger structures. As component size decreases in nanofabrication, bottom-up approaches provide an increasingly important complement to top-down techniques.
Which of the following methods is a bottom-up approach for making nanostructures?
The bottom-up approach involves building of nanomaterials from the atomic scale (assembling materials from atoms/molecules). For synthesis of nanomaterials attrition or ballmilling is a typical example of top-down method and colloidal dispersion is a good example of bottom-up approach.
Which of the following is an example of top Downapproach for the preparation of nanomaterials?
Explanation: mechanical grinding is an example of top-down approach for the preparation of nanomaterials.
Which is bottom-up approach to database design Mcq?
Answer is “Normalization“
Which of the following sequence is correct for top-down approach Mcq?
Explanation: Product design is top down approach.
What is top-down and bottom-up approach in synthesis of nanomaterials?
In general, bottom-up approach is meant by synthesis of nanoparticles by means of chemical reactions among the atoms/ions/molecules (Figure 1a). Whereas top-down involves the mechanical methods to crush/breaking of bulk into several parts to form nanoparticles (Figure 1b).
Which of the following sequence is correct for bottom-up approach?
Problems are undertaken in priority sequence. The potentially overwhelming scope of an EA effort is simplified in a bottom-up approach. The biggest problem is attacked first, then the next, then the next, and so on. This can lead to significant early successes.
Which of the following methods are used for the synthesis of nanomaterials?
The Polyol method is a chemical method for the synthesis of nanoparticles. This method uses nonaqueous liquid (polyol) as a solvent and reducing agent. The nonaqueous solvents that are used in this method have an advantage of minimizing surface oxidation and agglomeration.
Which technique is used in the making of biochips Mcq?
Which technique is used in the making of biochips? A. Nanolithography.
Why sol gel process is called bottom-up approach?
The bottom-up approach helps to assemble the structure starting at the atomic and molecular level. The sol–gel method is a unique method for preparing crack-free sol–gel bulks or film without any shrinkage with low residual organic content.
Which of the following method is top-down method for nanomaterials Mcq?
Which of the following is an example of top-down approach for the preparation of nanomaterials? Explanation: Mechanical grinding is an example of top-down approach for the preparation of nanomaterials.
Which of the following are the application of nanotechnology Mcq?
D. Explanation: the application of nanotechnology to food science and technology are agriculture, food safety and biosecurity, product development, food processing and ingredient technologies.
What’s the procedure in top-down fabrication method Mcq?
1. What’s the procedure in Top-down fabrication method? Clarification: Top-down approach is the one in which a material of regular size is converted into a nano-particle. In the bottom-up approach, the atoms are joined to form nano-particles.
Which one of the following statements about normal forms is false Mcq?
Which-one ofthe following statements about normal forms is FALSE? Explanation: We say that the decomposition is a lossless decomposition if there is no loss of information by replacing r (R) with two relation schemas r1(R1) andr2(R2). Explanation: Key is the basic element needed for the constraints.
Which of the following is a bottom-up approach to database design that design?
A is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.
| Q. | Which is a bottom-up approach to database design that design by examining the relationship between attributes: |
|---|---|
| A. | functional dependency |
| B. | database modeling |
Which of the following is not the rule to create a good database design Mcq?
Which of the following is not a feature of a good relational design? Explanation: Allowing redundancy of attributes makes it very difficult for data extraction. So, It is not a good relational design feature. Explanation: The dependency rules specified by the database designer are known as functional dependencies.
What is bottom-up down processing?
Bottom-up processing begins with the retrieval of sensory information from our external environment to build perceptions based on the current input of sensory information. Top-down processing is the interpretation of incoming information based on prior knowledge, experiences, and expectations.