Study on Recarburization by a New Carbon-Manganese Alloy Carburant

2011 ◽  
Vol 335-336 ◽  
pp. 556-561
Author(s):  
Jun Chen ◽  
Xin Teng Liang ◽  
Jian Hua Zeng ◽  
Tian Ming Chen
Keyword(s):  
Power Consumption ◽  
Melting Time ◽  
Carbon Yield ◽  
Manganese Alloy ◽  
Yield Rate ◽  
Steel Making ◽  
Manganese Alloys ◽  
The Cost

In order to solve the problem of long melting time and low yield rate of carbon while blind coal is used to recarburize, a new carburant is developed to replace blind coal. Experiment results show that compared with the blind coal, the new carbon-manganese alloy carburant obtains a high smelting velocity, and the average carbon yield rate is 92.95%, which increase by 7.67%, the yield rate of manganese is 93.31%, which a little higher than other normal manganese alloys. After carbon-manganese alloy is used to recarburize, logistics time and power consumption are saved and the cost of steel-making is reduced by 1.05 ¥/t. In addition, there is little effect on the quality of steel.

Development and Application of a New Carburant Material

2012 ◽  
Vol 476-478 ◽  
pp. 50-54 ◽  
Author(s):  
Jun Chen ◽  
Chen Xin Liu ◽  
Xin Teng Liang ◽  
Jian Hua Zeng ◽  
Tian Ming Chen
Keyword(s):  
Liquid Steel ◽  
Average Yield ◽  
Manganese Alloy ◽  
Precision Control ◽  
Yield Rate ◽  
New Type ◽  
The Cost

Anthracite carburant is adopted to increase the carbon during the steel tapping of the converter of Panggang, however, it is found that the smelting time is long and the yield rate of the carbon is low which severely affect the precision control of the heat composition, so the new type of carbon-manganese alloy carburant is developed and the application effect to the industry is investigated. The results show that this new type carbon-manganese alloy carburant smelting much faster, and the yield of the carbon and manganese are high, the average yield of carbon is 92.95%, which is 7.36% higher than anthracite, the manganese is 93.31%。This new type carburant for increasing the carbon can decrease the temperature of the tapping in the promise of keeping the quality of liquid steel, shorten the logistic time and reduce the cost of steel per ton.

scholarly journals Study of the dependence of efficiency on the load of a drilling machine

2021 ◽  
pp. 127-134
Author(s):  
V. Ramsh ◽  
Keyword(s):  
Power Consumption ◽  
Shelf Life ◽  
Electric Drive ◽  
Reactive Power ◽  
Asynchronous Motor ◽  
Drilling Machine ◽  
Network Analyzer ◽  
Auxiliary Equipment ◽  
The Cost

The question of research of dependence of efficiency on loading of the drilling machine is considered. To achieve this goal in the work were set and solved the following tasks: - to analyze the design and technological features of the drilling machine part; - to develop a new design of a drilling machine with a network analyzer; - to investigate the new design of a drilling machine with a network analyzer. About 80 % of drilling machines at Ukrainian enterprises are operated in excess of the established shelf life, which leads to their low quality of operation, high accident rate and failure of electromechanical equipment. The average shelf life of the electric drive in the industry does not exceed 6 years. Up to 10–18 % of electric motors and up to 30 % of auxiliary equipment fail and are repaired annually. The vast majority of engines can be repaired 4-5 times and after repair often do not work even for one year. The operation of drilling machines with an induction motor (short-circuited rotor), which are in poor technical condition, leads to an increase in financial costs due to increased power consumption. The cost of electricity consumed by the electric drive of drilling machines during the service life is significantly higher than the cost of equipment and maintenance costs and more than 4 times higher than its own. The electricity bill includes a system of surcharges for additional reactive power consumption. Reactive power charges at enterprises account for up to 10% of total electricity costs, and these costs tend to increase. Today, there is a need to apply the latest technical solutions and scientific approaches to solving the problem of improving the quality of operation of asynchronous electric drives of drilling machines. A research stand has been developed to determine the asynchronous motor of a drilling machine, which allows to identify the dependence of efficiency on the magnitude of the load, calculate the parameters of the substitution scheme and energy characteristics for the nominal mode of operation of the electric drive. Key words: drilling machine, network analyzer, research stand

scholarly journals Modelling of the process of vybromechanical activation of plant raw material hydrolysis for pectin extraction

10.5219/1305 ◽  
2020 ◽  
Vol 14 ◽  
pp. 239-246
Author(s):  
Igor Palamarchuk ◽  
Mikhailo Mushtruk ◽  
Vladislav Sukhenko ◽  
Vladislav Dudchenko ◽  
Lidija Korets ◽  
...  
Keyword(s):  
Power Consumption ◽  
Raw Materials ◽  
Equations Of Motion ◽  
Oscillatory System ◽  
Drive Shaft ◽  
Raw Material ◽  
Plant Raw Materials ◽  
The Cost ◽  
Power And Energy

Centrifugal and vibrational technological effects are among the main approaches to intensify the process of plant raw materials hydrolysis for pectin extraction. With the impulse intensification of such a process, it is possible not only to increase its efficiency, but also to achieve the compactness of the equipment, reduce the cost of electricity and improve the quality of the product of hydrolysis. The hypothesis is confirmed, according to which the vibro-centrifugal intensification of hydrolysis increases the driving force of the process by not only activating the material flows of raw materials and reagents, but also by reducing the resistance in the technological environment. Graphical and analytical dependencies of the power and energy parameters of the oscillatory system were obtained, which proved the overcoming of the flow resistance of the liquid medium in the entire speed range of the drive shaft with the potential to intensify the process at a power consumption of 2.0 – 3.0 kW and or by the force of 2.3 – 2.5 kN using the Lagrange and Cauchy methods for composing and solving the equations of motion of the moving components of the tested hydrolyser with vibrating activators, and the methods of mathematical analysis and their processing in the MathCAD. The analysis of the presented parameters of the studied process of mixing the pectin-containing mass in the hydrolyser allowed us to determine the rational mode parameters of processing, which correspond to the angular velocity of the drive shaft  rad/s at the power consumption of 500 – 600 watts.

Estimating OLED Display Device Lifetime from pixel and screen brightness and its application

2019 ◽  
Vol 2019 (1) ◽  
pp. 331-338 ◽  
Author(s):  
Jérémie Gerhardt ◽  
Michael E. Miller ◽  
Hyunjin Yoo ◽  
Tara Akhavan
Keyword(s):  
Image Processing ◽  
Power Consumption ◽  
Model Parameters ◽  
Display Device ◽  
Image Processing Algorithm ◽  
Pixel Value ◽  
Device Lifetime ◽  
The Impact ◽  
Oled Display

In this paper we discuss a model to estimate the power consumption and lifetime (LT) of an OLED display based on its pixel value and the brightness setting of the screen (scbr). This model is used to illustrate the effect of OLED aging on display color characteristics. Model parameters are based on power consumption measurement of a given display for a number of pixel and scbr combinations. OLED LT is often given for the most stressful display operating situation, i.e. white image at maximum scbr, but having the ability to predict the LT for other configurations can be meaningful to estimate the impact and quality of new image processing algorithms. After explaining our model we present a use case to illustrate how we use it to evaluate the impact of an image processing algorithm for brightness adaptation.

Pengaruh Kompetensi Coder terhadap Keakuratan dan Ketepatan Pengkodean Menggunakan ICD 10 di Rumah Sakit X Pekanbaru Tahun 2016

2018 ◽  
Vol 1 (1) ◽  
pp. 31-43
Author(s):  
Nur Maimun ◽  
Jihan Natassa ◽  
Wen Via Trisna ◽  
Yeye Supriatin
Keyword(s):  
Medical Record ◽  
Human Error ◽  
Medical Personnel ◽  
Quality Of Data ◽  
Accuracy And Precision ◽  
Result Show ◽  
Study Implementation ◽  
Icd 10 ◽  
The Cost

The accuracy in administering the diagnosis code was the important matter for medical recorder, quality of data was the most important thing for health information management of medical recorder. This study aims to know the coder competency for accuracy and precision of using ICD 10 at X Hospital in Pekanbaru. This study was a qualitative method with case study implementation from five informan. The result show that medical personnel (doctor) have never received a training about coding, doctors writing that hard and difficult to read, failure for making diagnoses code or procedures, doctor used an usual abbreviations that are not standard, theres still an officer who are not understand about the nomenclature and mastering anatomy phatology, facilities and infrastructure were supported for accuracy and precision of the existing code. The errors of coding always happen because there is a human error. The accuracy and precision in coding very influence against the cost of INA CBGs, medical and the committee did most of the work in the case of severity level III, while medical record had a role in monitoring or evaluation of coding implementation. If there are resumes that is not clearly case mix team check file needed medical record the result the diagnoses or coding for conformity. Keywords: coder competency, accuracy and precision of coding, ICD 10

ABOUT NECESSITY OF MATHEMATICAL MODELING OF THE BUSINESS PROCESS OF COST ESTIMATE CALCULATIONS IN THE CONSTRUCTION OF OIL AND GAS FACILITIES

2017 ◽  
pp. 139-145
Author(s):  
R. I. Hamidullin ◽  
L. B. Senkevich
Keyword(s):  
Mathematical Modeling ◽  
Quality Assessment ◽  
Business Process ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Construction Organizations ◽  
The Cost ◽  
Cost Of Construction

A study of the quality of the development of estimate documentation on the cost of construction at all stages of the implementation of large projects in the oil and gas industry is conducted. The main problems that arise in construction organizations are indicated. The analysis of the choice of the perfect methodology of mathematical modeling of the investigated business process for improving the activity of budget calculations, conducting quality assessment of estimates and criteria for automation of design estimates is performed.

Return on Invesment (ROI) of Software Product: A Systematic Literature Review

2015 ◽  
Vol 6 (1) ◽  
pp. 50-57
Author(s):  
Rizqa Raaiqa Bintana ◽  
Putri Aisyiyah Rakhma Devi ◽  
Umi Laili Yuhana
Keyword(s):  
Return On Investment ◽  
Assessment Criteria ◽  
Software Product ◽  
And Performance ◽  
Rational Consideration ◽  
Actual Return ◽  
The Cost ◽  
Investment Models ◽  
The Impact

The quality of the software can be measured by its return on investment. Factors which may affect the return on investment (ROI) is the tangible factors (such as the cost) dan intangible factors (such as the impact of software to the users or stakeholder). The factor of the software itself are assessed through reviewing, testing, process audit, and performance of software. This paper discusses the consideration of return on investment (ROI) assessment criteria derived from the software and its users. These criteria indicate that the approach may support a rational consideration of all relevant criteria when evaluating software, and shows examples of actual return on investment models. Conducted an analysis of the assessment criteria that affect the return on investment if these criteria have a disproportionate effort that resulted in a return on investment of a software decreased. Index Terms - Assessment criteria, Quality assurance, Return on Investment, Software product

Strategy for Protecting the North Sea: A Chemical Industry Perspective

1991 ◽  
Vol 24 (10) ◽  
pp. 269-276
Author(s):  
J. R. Lawrence ◽  
N. C. D. Craig
Keyword(s):  
North Sea ◽  
Chemical Industry ◽  
Important Research ◽  
The Public ◽  
The North ◽  
Anthropogenic Inputs ◽  
Seven Principles ◽  
The North Sea ◽  
The Cost

The public has ever-rising expectations for the environmental quality of the North Sea and hence of everreducing anthropogenic inputs; by implication society must be willing to accept the cost of reduced contamination. The chemical industry accepts that it has an important part to play in meeting these expectations, but it is essential that proper scientific consideration is given to the potential transfer of contamination from one medium to another before changes are made. A strategy for North Sea protection is put forward as a set of seven principles that must govern the management decisions that are made. Some areas of uncertainty are identified as important research targets. It is concluded that although there have been many improvements over the last two decades, there is more to be done. A systematic and less emotive approach is required to continue the improvement process.

Effects and Risks of Distance Learning in Higher Education

2020 ◽  
pp. 61-73
Author(s):  
Yu. M. Tsygalov
Keyword(s):  
Higher Education ◽  
Distance Learning ◽  
Online Education ◽  
New Technology ◽  
Negative Consequences ◽  
Higher Education System ◽  
First Results ◽  
Spread Of Infection ◽  
The Cost

The forced work of Russian universities remotely in the context of the pandemic (COVID-19) has generated a lot of discussion about the benefits of the new form of education. The first results were summed up and reports were presented, the materials of which showed that the main goal of online education — the prevention of the spread of infection, - has been achieved. Against this background, proposals and publications have appeared substantiating the effectiveness of the massive introduction of distance learning in Russia, including in higher education. However, the assessment of such training by the population and students in publications and in social networks was predominantly negative and showed that the number of emerging problems exceeds the possible benefits of the new educational technology. Based on the analysis of the materials of publications and personal experience of teaching online, the potential benefits and problems of distance learning in higher education in Russia are considered. It is proposed to consider the effects separately for the suppliers of new technology (government, universities) and consumers (students, teachers, society). It is substantiated that the massive introduction of online education allows not only to reduce the negative consequences of epidemics, but also to reduce budgetary funding for universities, optimize the age composition of teachers, and reduce the cost of maintaining educational buildings. However, there will be a leveling / averaging of the quality of education, and responsibility for the quality of training will shift from the state/universities to students. The critical shortcomings of online education are the low degree of readiness of the digital infrastructure, the lack of a mechanism for identifying and monitoring the work of students, information security problems, and the lack of trust in such training of the population. The massive use of online education creates a number of risks for the country, the most critical of which is the destruction of the higher education system and a drop in the effectiveness of personnel training. The consequences of this risk realization are not compensated by any possible budget savings.

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