scholarly journals Determination of the optimal transition point between a truck and shovel system and a semi-mobile in-pit crushing and conveying system

2021 ◽  
Vol 121 (9) ◽  
pp. 1-8
Author(s):  
M. Shamsi ◽  
M. Nehring
Keyword(s):  
System Design ◽  
Transition Point ◽  
Copper Deposit ◽  
Discounted Cost ◽  
Transition Depth ◽  
Optimum Depth ◽  
Transition Points ◽  
Conveying System ◽  
Haulage System

One of the most challenging aspects in semi-mobile in-pit crushing and conveying (SMIPCC) system design is determining the optimum depth at which to change from a purely truck-based haulage system to a conveyor-based haulage system. We used scenario analysis to determine the optimum transition depth between a truck and shovel (TS) system and a SMIPCC system. Traditional pit-limit algorithms were used to generate the final pit limit on a copper deposit, which was then divided into four pushbacks. The final operating pushbacks (phases) were designed for both TS and SMIPCC. The end depths for each phase are viewed as candidate transition points to switch from the TS to SMIPCC haulage system. Economic calculations were applied for five different scenarios, including adopting SMIPCC from the outset (pure SMIPCC), after the first, second, and third phases, and finally not using the SMIPCC system (pure TS) at all. The analysis indicates that the second scenario, at a depth of 335 m, results in the lowest cumulative discounted cost (CDC). In this case, the CDC is 17.6% lower than that for the pure TS scenario and 10.7% lower than for the pure SMIPCC system scenario.

VARIATIONAL CALCULATION OF LATTICE SU(N) GAUGE SYSTEMS FOR N=4~6

1998 ◽  
Vol 13 (18) ◽  
pp. 3193-3202
Author(s):  
XITE ZHENG
Keyword(s):  
Phase Transition ◽  
Transition Point ◽  
Variational Calculation ◽  
Phase Transition Point ◽  
Lattice Gauge ◽  
Large N ◽  
Transition Points ◽  
Good Agreement ◽  
Gauge Systems

A variational calculation scheme of SU (N) lattice gauge Wilson models for large but finite N is presented. The order parameter EP and the phase transition points of lattice SU (N) gauge systems for N=4~6 are calculated. The results are in good agreement with Monte Carlo simulations. An extrapolation procedure for determination of the phase transition point in the large N limit is proposed.

Etude par résonance paramagnétique électronique de la radiolyse en phase solide de composés cycliques perfluorés

1970 ◽  
Vol 48 (3) ◽  
pp. 435-446 ◽  
Author(s):  
Claude Chachaty ◽  
Alain Forchioni ◽  
Masaru Shiotani
Keyword(s):  
Electron Spin Resonance ◽  
Solid State ◽  
Relative Intensity ◽  
Transition Point ◽  
Γ Irradiation ◽  
Ring Inversion ◽  
Spin Resonance ◽  
The Matrix ◽  
Γ Rays ◽  
Transition Points

Perfluorocyclohexane (PFCH) and perfluoromethylcyclohexane (PFMCH) have been irradiated in the solid state by γ rays of 60Co. The electron spin resonance (e.s.r.) spectrum of PFCH irradiated at 77 °K corresponds mainly towhich is tumbling in the matrix above 160 °K and disappears at the transition point (180 °K). When γ irradiation is carried out at 200 °K, C6F11• is also produced, but reacts with PFCH giving a radicalsupposed to be [Formula: see text]The e.s.r. spectrum of PFMCH γ irradiated at 77 °K has not been identified; it might be attributable in part to (•C6F11CF3)−. Above 160–170° K, the e.s.r. spectrum corresponds only toThe equal coupling of the four γ fluorines and also the relative intensity 1:4:1 of the three main groups of lines observed above 210 °K suggest that ring inversion occurs with a high rate.We have also studied the radicals [Formula: see text]produced by γ irradiation in the presence of oxygen. The variation of their spectra with temperature, particularly near the transition points, is very characteristic of the motion involved.

scholarly journals DECISION SUPPORT SYSTEM FOR DETERMINING BEST HOMEROOM TEACHER WITH TOPSIS METHOD IN MIS NURUL HUDA PANTAI LABU

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Elisa Purba ◽  
Desi Vinsensia ◽  
Yulia Utami
Keyword(s):  
Student Achievement ◽  
Decision Support ◽  
Decision Support System ◽  
System Design ◽  
Support System ◽  
School Principal ◽  
Topsis Method ◽  
Organizational Experience

<p><em>During this time the determination of the best homeroom teacher at MIS Nurul Huda Pantai Labu  was still using a manual process , so the results were not optimal. In this study the  decision support system was built to facilitate the school in determining the best homeroom teacher using the Topsis method. The criteria used are 5: attendance, organizational experience, data on student achievement, interaction with students, and final education. This system design application is expected to help the school principal in making decisions about determining the best homeroom teacher</em></p>

Prediction of Transition Point on an Oscillating Airfoil Using Neural Network

2007 ◽  
Author(s):  
M. R. Soltani ◽  
M. Seddighi ◽  
M. Masdari
Keyword(s):  
Neural Network ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Transition Point ◽  
Experimental Tests ◽  
Reynolds Numbers ◽  
Dynamic Neural Network ◽  
Acceptable Accuracy ◽  
Transition Points ◽  
Trained Network

Dynamic Neural network was used to minimize the amount of data required to predict the location of transition point on a 2-D oscillatory wing. For this purpose, various experimental tests were carried out on a section of a 660kw wind turbine blade. A multi layer non linear perceptrons network was trained using the output signals of four hot films attached on the upper surface of the model. Results show that using only 50% of the test data, the trained network was able to the transition point with an acceptable accuracy. Moreover, the method can predict the transition points at any position of the wing surface for different Reynolds numbers, amplitudes and initial angles of oscillation, and of course at various reduced frequencies.

Perception System Design of Virtual Human by Object-Oriented Method

2011 ◽  
Vol 204-210 ◽  
pp. 866-871
Author(s):  
Xia Dong ◽  
Ke Dian Wang ◽  
Jun Wei Cao ◽  
Xue Song Mei
Keyword(s):  
System Design ◽  
Object Oriented ◽  
Virtual Human ◽  
Object Oriented Method ◽  
Human Behaviors ◽  
Perception System ◽  
Simulation Results ◽  
Decision Making Model ◽  
Module System

The perception module system of the virtual human in dangerous circumstances is studied mainly. The decision-making model based on emotion is created with mathematical method. The visual perception method is designed with geometrical algorithm, which can realize the determination of objects’ visibility. Perception module is designed with object-oriented method, including environment-information notification and virtual human’s responser. Communication between virtual human and nearby objects is communicated based on the perception module. The platform, which can simulate virtual human behaviors, is created with OpenGL technology by Visual C++6.0. The simulation results of virtual human behaviors prove that the perception system design of the virtual human is feasible.

Determination of Thermal Transition Depth Profiles in Polymer Semiconductor Films with Ellipsometry

2013 ◽  
Vol 46 (18) ◽  
pp. 7325-7331 ◽  
Author(s):  
Christian Müller ◽  
L. Mattias Andersson ◽  
Ovidio Peña-Rodríguez ◽  
Miquel Garriga ◽  
Olle Inganäs ◽  
...  
Keyword(s):  
Thermal Transition ◽  
Semiconductor Films ◽  
Depth Profiles ◽  
Transition Depth ◽  
Polymer Semiconductor

scholarly journals Air Defence Decision Support System Design Using Fuzzy Logic

2018 ◽  
pp. 135-139
Author(s):  
Fuat Beser ◽  
Dogan Adiguzel ◽  
Omur Yildirim ◽  
Tulay Yildirim
Keyword(s):  
Fuzzy Logic ◽  
Decision Support ◽  
Decision Support System ◽  
System Design ◽  
Expert Opinion ◽  
Support System ◽  
Support Systems ◽  
Threat Level ◽  
Electronic Support

Since air vehicles move faster than land or sea vehicles, warships must be able to perceive their threats from the air in a limited amount of time and react appropriately. Information from various sensors such as radar, electronic support systems, eyes are used to identify air targets correctly. The determination of the target type and threat level is of great importance in terms of determining the reaction to be shown. In this study, the threat level was determined by using the velocity, altitude, distance and climb rate values of the air targets and the fuzzy logic rules which are obtained by the expert opinion.

FINITE STATE AUTOMATA DAN LOGIKA FUZZY DALAM PEMILIHAN PAKET PELAMINAN DI KOTA BATAM

2019 ◽  
Vol 2 (2) ◽  
pp. 54-62
Author(s):  
Koko Handoko ◽  
Alvendo Wahyu Aranski
Keyword(s):  
Fuzzy Logic ◽  
System Design ◽  
Real Data ◽  
First Year ◽  
Finite State Automata ◽  
Potential Partner ◽  
Finite State ◽  
Exact Calculations ◽  
The City

Marriage is something that is highly desirable for every potential partner in life. Marriage is considered a sacred activity so it needs to be well planned and mature. The growing development of a business in Batam city makes this business mushrooming because it is definitely needed by every couple who will get married. The availability of a wedding package helps each couple to choose an existing package, both in terms of price, type of tent to be used, number of clothes, and wedding photographer services. In this study, researchers conducted a determination of the problem in the form of a wedding package selection, looking for literature in accordance with the problems in the form of books and journals, analysis with fuzzy logic with the Mamdani method to complete the exact calculations so that prospective brides who will choose the aids package can choose the package that in accordance with the wishes and budget provided. The use of fuzzy logic and the Mamdani method will be assisted by Finite State Automata in making the rule design of fuzzy logic. Output targets achieved in the form of analysis of the determination of the package in the form of fuzzy logic calculations, system design from the analysis stage, retrieval of real data from each aisle in the city of Batam, and the target in the first year in the form of a determination package relevant to every wedding in the city of Batam.

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