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The effects of preheating temperature were also investigated on the chip morphology during the end milling of AISI H13 tool steel, which resulted in reduction of chip serration frequency.
This data acquisition (DAQ) device uses accelerometer which is piezo-electric sensor, is placed on the spindle, perpendicular to the direction of cutting.
In the figure 4 (b), preheated machining technique has improved the cutting tool performance in influencing the reduction of tool wear at cutting speed of 120 m/min.
The data were taken for every 40mm length of cut.
These were three ranges of frequencies that have been observed in the vibration and chatter data during both conditions, which were 500-1200Hz, 1500-2000 Hz and 7500-10200 Hz.

The characteristics of municipal solid waste in large cities of Ukraine [1] are analyzed and data on their calorific value and composition have been presented.
The efficacy and existing problems of this flue gas cleaning system have been proven by comparing the measured pollutant emission data and the limits set by legislative standards.
The first stage is selective non-catalytic reduction of nitrogen oxides using a 25 % aqueous urea solution.
Selective catalytic reduction– S2/4. 5.
The enhanced Pb resistance of CeO2/TiO2 catalyst for selective catalytic reduction of NO with NH3 by the modification with W.

Because of the unreasonable exploitation method and technology, many oil resources are difficult to be exploited, and the waste of resources is also very serious.According to the data provided by Swiss bank's recent global oil status report, the proven oil reserves on earth are about 1.8×1012 barrels.Converted into the service time corresponding to the consumption level, the world oil can be exploited for about 46 years.Therefore, improving the way of oil exploitation is a subject that all countries need to face.In China's oil reserve structure, with the reduction of conventional oil resources, the proportion of low-efficiency reserves and low-grade reserves that are difficult to recover in the long-term development of old oilfields is increasing, and more scientific exploitation technology is paid more and more attention in the current oil situation.For heavy oil resources with large specific gravity and high viscosity, it is necessary to study its recovery technology.For China, heavy
This method has good viscosity reduction effect, but the treatment capacity is small.
Upgrading and viscosity reduction technology is relatively mature in heavy oil recovery technology.
(4) Combined with steam huff puff, Steam flood, SAGD and in-situ combustion technology, horizontal well and multiple medium well technology can make heavy oil reservoir obtain better development effect, which should be paid attention to in the future heavy oil thermal recovery technology. 4 Expectation (1) The development of heavy oil viscosity reduction technology is diversified: physical viscosity reduction includes thermal recovery method, thin oil blending method, ultrasonic method, etc., chemical viscosity reduction includes upgrading viscosity reduction and emulsification viscosity reduction, etc., microbial viscosity reduction can also play a certain role, and composite viscosity reduction is a comprehensive application of a variety of principles
(3) The evaluation method of heavy oil viscosity reduction is not perfect, and the dynamic viscosity reduction flooding evaluation based on static viscosity reduction evaluation is developing gradually.

.%) steels subjected to hot plate rolling at a temperature of 1423 K with a total reduction of 60% were studied.
The steel melts were annealed at 1423 K followed by hot rolling with about 60% reduction.
At least two specimens were tested for each data-point.
The EBSD data-points with a confidence index below 0.1 were replaced with black points in the OIM images.
Note here that the chemical compositions of the austenite at 1423 K as calculated by ThermoCalc (TCFE7 data base) were used for the calculations.

Nevertheless, communicating or integrating information that is from different sources is challenging, no to mention the variances in sampling data, data structure, and methods of collecting data[93].
Moreso, there are several disciplines behind the collection of data during each of the life-cycle processes, and synergizing the collected data and the knowledge into a dependable system is another daunting task[94]. 10.3 Absence of Process Safety Decision Making System For the large-scale manufacturing industry, one of the best approaches to minimized costs and increased benefits is by producing en-mass.
Touriki, “The integrated effect of Big Data Analytics, Lean Six Sigma and Green Manufacturing on the environmental performance of manufacturing companies: The case of North Africa,” J.
Narkhede, “Linking big data analytics and operational sustainability practices for sustainable business management,” J.
Data Syst., vol. ahead-of-p, no. ahead-of-print, Jan. 2021, doi: 10.1108/IMDS-08-2020-0447

Thus, a large reduction ratio can be achieved by the harmonic drive reducer.
(1) Experimental data and analysis Part of the experimental data are listed in table 3.
The measurement principles, methods and data processing are described for further analysis and development of the measurement system.
The experimental data are basically consistent with the micro harmonic drive theory.
Experimental equipments are determined and experimental measurement instruments data is cleared by the experimental system design.

Date accepted: 08 April 2014] Keywords: Multinational micro business, Multi-stage management engineering, Influence factors, Micro political risk, Data envelopment analysis, Abstract.
To address this problem, this paper develops a multi-stage data envelopment analysis (MSDEA) model to investigate the influence of micro political risks on the efficiency of multinational micro businesses.
The Multi-Stage Data Envelopment Analysis (MSDEA) Data envelopment analysis (DEA): DEA is a kind of statistical analysis [20] that utilizes the input-output data to estimate the efficacy of input or output.
Actually, DMU2 is the worst unit in the statistical data.
Cooper, Some methods for estimating technical and scale inefficiencies in data envelopment analysis, Manag.

The isothermal crystallization half-time (t1/2) was applied to provide the data for injection molding process.
After that, they were cooled down to 100°C at 10°C/min and isothermally held at this temperature and data were collected until the crystallization was accomplished.
Data was collected when the test specimen was deflected at 0.25 mm.
Data of the glass transition temperature (Tg), melting temperature (Tm), cold crystallization temperature (Tc) were collected from each thermogram.
The reduction of t1/2 directly reduces the injection molding cycle time for providing PLA with higher production rate and thermal stability [7].

Experimental procedure The experimental testing device used in this study has been developed by Bech et al. [4] for thickness reduction of aluminium strips.
The upper die is made of hardened glass so the lubricant behaviour can be observed during thickness reduction.
The lower die is made of steel, with an inclined plane with an angle β=3° to apply the thickness reduction.
The aluminium strips have been subjected to a reduction of about 15% during the drawing process.
A VSI uses an algorithm to process fringe modulation data from the intensity signal to calculate the surface heights.

c) Comparison of the 3 fitting functions of mass growths of the 3 bacteria and concentrations of composed water: According to the detected data (Table 1), the line chart of the relation among mass growths of the 3 bacteria and the concentrations of composed water were drawn with a trend line by Excel software.
Taking the fact that excessive growth and reduction in bulk of microbail may result in disruption of the micro-ecological balance into consideration, it is easy to be understood that the environmental risk must be raised by excessive growth and reduction in bulk of microbial.
When the population size of microbial indicator in microcosm exceeds the half of and below the biggest population size that it could be; or the reduction exceeds the half of the initial size of population, but not absolute death, the self-regulation of micro-ecology of water body will be broken [11-12] and should be marked as medium risk.
There are 3 kinds of situation for this: (1) when the concentration of wastewater is a suitable nutritional concentration for microbial, and the population size of indica-tor just between the half and total of the biggest population size that it could be, i.e. 0.4325((0.3010+0.5640)/2)≤OD600＜0.5640; (2) when the nutritional effect overcomes the toxicity at the higher concentration of wastewater (right of the curve), i.e. 0.4325≤OD600＜0.5640; (3) when the reduction of indicator exceeds the half of its initial size of population and above absolute death, i.e. 0.1505≤OD600＜0.
As the same, when the population size of microbial indicator does not exceed the half of the biggest population size that it could be, or its reduction does not exceed the half of its initial population size, the self-regulation of micro-ecology of water body does work [11-12], and low risk should be set, i.e. 0.3010＜OD600＜0.4325 or 0.1505＜OD600＜0.2973 (refer to it in the next paragraph).