[ Exercise 8 ]
- The machines can
process the family of parts, ensuring that it reaches full capacity.
- All parts have the
same transportation costs, which limits the effectiveness of traditional
approaches.
- The team attempts
to optimize the thickness by minimizing the variation and maintaining
the desired mean. This accounts for why the effects of process
parameters on the silicon nitride deposition process are studied.
- In previous literature,
they do not examine the feasibility of incorporating PS into SA
to develop a more efficient stochastic optimization approach at
such times as the two variables are constant.
- The department chairman
told the research assistant that she needed to perform the simulations
in the event that the experiment fails.
- Deterioration is
set to a constant fraction of the stock level, which implies that
shortages are not permitted and the demand rate is assumed to
decrease exponentially.
- When a machine is
assigned to a manufacturing cell, it attempts to reduce the total
cost.
- The posterior objective
concentrates on balancing intracell and intercell machine loadings,
which allows us to formulate the cell formation problem as follows.
- Factors C, D, F,
G and H significantly affect the response average. This indicates
that F can be adjusted based on the target value.
- You should maintain
a constant cutting speed even though the effective diameter of
the cutting changes during machining.
- In most previous
investigations, they do not consider the simultaneous effects
of deterioration and inflation.
- A numerical example
demonstrates the effectiveness of the proposed method, which further
indicates that the total system cost will be incorrectly estimated
if the deteriorating effect and/or inflationary effect are neglected.
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[ Exercise 9 ]
- Cell formation is
the first and most difficult step in CMS design in that it identifies
parts with similar processing requirements and the set of machines
capable of processing the corresponding family of parts.
- Taguchi's two-step
procedure is in many cases inefficient if certain conditions are
not satisfied, which may prevent this procedure from attaining
the minimum quality loss despite a maximized SN ratio.
- Factors A, C, E,
F and H significantly affect SN. This means that a larger SN ratio
has a better quality.
- It is widely recognized
that a constant speed can be obtained if the spindle speed does
not vary.
- Their consumption
rate item in most cases stipulates that its demand rate depends
on the stock level when it is increasing.
- As the machine operator,
you must assume that a hazardous situation could occur on the
shop floor at any time.
- Developing a more
feasible approach to resolve the MCG problem is extremely difficult
when it contains many unknown variables.
- The regression coefficient
is statistically significant, which implies that a significant
relationship exists in the following form.
- Only the first-order
interaction effect is considered. This is since the second-order
or higher-order interaction effect can generally be ignored in
industry.
- You know that the
Internet has significantly affected commercial activity worldwide.
- It is the responsibility
of the department chairman to handle all administrative matters.
- On the shop floor,
it is a standard safety precaution for workers to wear a safety
helmet.
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[ Exercise 10 ]
- While the GA method
searches along the contour of the optimized function, it makes
no assumption about the problem space.
- The proposed technique
is similar to industrial control charts, which makes it easily
understood by the practitioner.
- Conventional approaches
for analyzing censored data are computationally complicated and
often difficult to explain to practitioners. That explains why
this work presents an effective procedure based on the rank transformation
of the responses.
- In Taiwan's semiconductor
industry, they are applying state-of-the-art technologies in view
of the fact that the island has a highly skilled labor force.
- Increasing parameter
k increases the optimal ordering quantity. This affects the total
system cost as well.
- The optimal ordering
quantity increases, which increases the total system cost.
- The conveyor belt
transports the machine part to the assembly line, where it proceeds
to the workstation.
- Taguchi's two-step
procedure can identify optimal settings of the design factors,
which minimizes the expected quadratic loss when the following
conditions are met.
- In addition to the
proposed procedure considering the variability of the control
factors, it can concurrently perform censored data analysis for
replicated and unreplicated experiments.
- They showed in an
earlier investigation [4] that the turned parts on CNC lathes
have continuous forms.
- They stated in their
report the manner in which changes should be made.
- The graduate student
reported to the academic advisor that his experiments were almost
finished.
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[ Exercise 11 ]
- It is our opinion
that, when a decision reaches the final stage, it must be implemented
promptly.
- No adjustment factors
exist if (C1) is violated, which means that the transformation
approach can be carried out.
- Taguchi [4] treated
censoring times as actual failures, which may lead to serious
deficiencies. This arises because the unobserved failure and censoring
times may significantly differ.
- A number of studies
have examined how inflation affects an inventory policy, which
also considered the time value of money and different inflation
rates.
- Increasing parameter
k increases the optimal ordering quantity. This affects the total
optimal total system cost.
- An optimal inventory
policy which considers the simultaneous effects of deterioration
and inflation should be developed.
- Optimizing a large-scale
problem to demonstrate the effectiveness of the proposed approach
is problematic when it adopts the integer programming model.
- The uniformity of
the output was unstable, which made it impossible for engineers
to adjust the process parameters when the wafer quality did not
match the required specifications.
- Besides their method
relying on the existence of MLEs, it does not consider the variability
of control factors.
- Inventory replenishment
policies are considered for deteriorating items in a declining
market under a continuous price increase. They lead to a differential
equation that describes the system's inventory dynamics.
- Driving a car and
talking on a cellular phone at the same time is dangerous; this
could cause an accident.
- When different approaches
employ variables to implement the procedure, they encounter several
obstacles.
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