scholarly journals A UTILIZAÇÃO DA PESQUISA OPERACIONAL PARA RESOLVER PROBLEMA DE LOGÍSTICA EM TRANSPORTE RODOVIÁRIO DE CARGAS

2018 ◽  
Vol 10 (4) ◽  
pp. 01-08
Author(s):  
Marcus Ayrton Rocha de Lima ◽  
Douglas Fernandes ◽  
Flavio Alberto Oliva
Keyword(s):  
Decision Making ◽  
Road Transport ◽  
Microsoft Excel ◽  
The Road ◽  
Complex Decision Making ◽  
Complex Decision ◽  
On The Road ◽  
Breakeven Point ◽  
The City ◽  
A Company

Road freight transport is a dynamic, complex and competitive segment that will require quick and accurate decisions from its managers, since the mere fact of making a vehicle available on the road or in the city to meet customer needs does not imply the generation of results positive. Thus, decision-making in this sector should be carefully studied for the survival of the business. The scenario for this study is a fictitious cargo road transport company that, through one of its vehicles, should serve two specific customers. The aim of this article is to demonstrate the employment of Operations Research (OR) as a support in the most complex decision making, based on the Solver resource available in Microsoft Excel spreadsheets, aiming to solve a logistics problem and result simulations of a company that provides Recebido em: 08/08/2018Revisado em: 11/08/2018Aprovado em: 18/09/2018 2Colloquium Exactarum, v. 10, n.4,Out-Dez. 2018, p.01–08. DOI: 10.5747/ce.2018.v10.n4.e250transport services, based on constraints inherent to the enterprise in which the objective function must find the breakeven point and maximize the result.

scholarly journals Wieloletnie ramy finansowe na lata 2021–2027 i plan na rzecz odbudowy Unii Europejskiej – uwarunkowania negocjacji, przełomowe decyzje i perspektywa zmian

Studia BAS ◽  
2021 ◽  
Vol 3 (67) ◽  
pp. 27-44
Author(s):  
Magdalena Sapała
Keyword(s):  
Successful Implementation ◽  
The European Union ◽  
The Road ◽  
Financial Framework ◽  
Complex Decision Making ◽  
Complex Decision ◽  
On The Road ◽  
Final Agreement ◽  
The Eu

The article reflects on the negotiations on the EU’s 2021–2027 Multiannual Financial Framework and the European Union Recovery Instrument. It gives an overview of exceptional circumstances surrounding the negotiations, broad scope of the legislative package negotiated, and complex decision-making process. The paper also examines the final agreement, in particular as regards the size of the new long-term budget, the shift in spending priorities, and changes in the way the EU actions are financed. The author concludes that despite many difficulties on the road to the agreement, some elements of the outcome can be characterised as groundbreaking. She gives some arguments that a departure from path dependency in financing of the EU is possible. However, whether or not the change is permanent, depends on the successful implementation of the decisions made. The Conference on the Future of Europe gives an opportunity to continue the debate on further reform of the EU finances.

scholarly journals Brainy Road Accident Mitigation System

2021 ◽  
Vol 9 (VIII) ◽  
pp. 249-251
Author(s):  
Dr. B. M. Vidyavathi
Keyword(s):  
Road Safety ◽  
Large Scale ◽  
Road Transport ◽  
Road Accident ◽  
Road Accidents ◽  
Road Crashes ◽  
The Road ◽  
Road Crash ◽  
On The Road ◽  
The City

Many precious lives are lost due to road accidents because of over speeding and negligent driving every day. This is the matter of great concern for departments that deal with road safety and for the citizens. It is estimated that 80% of crashes and 65% of near collisions are due to driver’s lack of attention to traffic for three seconds before the event. The number of road crash deaths has increased by 31% from 2007 to 2017. As per the survey on the road accidents in India, according to the Ministry of Road Transport and Highways, 1, 50,785 people were killed and another 4, 94,624 were injured in 4, 80,652 road crashes in India in 2016. Now day’s accidents are taking place at large scale. Majority of the accidents occurs due to the over speeding of vehicles, though there are speed limiting boards placed at the roadside of highways also at the road side in the city. But none of vehicles (drivers) follows the speed mentioned in the speed limit boards, due to which accidents occurs.

Sistem Komputerisasi Pengolahan data Penjualan dan Stok Pada Distributor alat alat Listrik

2020 ◽  
Vol 13 (1) ◽  
pp. 63-74
Author(s):  
Budi Hartono ◽  
Iwan Koerniawan
Keyword(s):  
Visual Basic ◽  
Database System ◽  
Private Company ◽  
Microsoft Excel ◽  
The Road ◽  
Central Java ◽  
Computer Based ◽  
On The Road ◽  
A Company ◽  
Visual Basic 6.0

In line with the development of science and technology today, a job that is done requires fast-paced data and information. By getting data and information quickly, the company has the ability to develop faster. Inventory is a very important part for a company. Inventory of goods is one of the tasks of logistics management in a company, namely support in the procurement of goods for the company. In order for this support to be utilized, it is necessary to plan and carry out in an integrated manner, which is interrelated and supports between related elements. CV Sinar Karya Ungaran is a private company which is engaged in the distributor of Electric tools. CV Sinar Karya is located on the road Dabo II / D30 RT6 Nitibuana, Ungaran Regency Semarang Tel. (024) 3584074 - 3584075. This company has a wide enough working area covering Central Java and DIY. Because the working area is quite extensive and the number of processes in and out of goods, the company must be more careful in calculating inventory. In the process of recording and counting inventory at this time the company is still using Microsoft Excel so there are still many obstacles. In the process of recording and counting inventory at this time the company still uses Microsoft Excel. One of the difficulties experienced is the frequent occurrence of errors in making inventory reports. Besides making reports takes longer because there is no computerized database system. With the development of technology, especially in the field of computers, the authors try to create a computer-based inventory program using Visual Basic 6.0. This is expected to help companies in making goods inventory more quickly and accurately.

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

scholarly journals A Theoretical Model with Which to Safely Optimize the Configuration of Hydraulic Suspension of Modular Trailers in Special Road Transport

2020 ◽  
Vol 11 (1) ◽  
pp. 305
Author(s):  
Rubén Escribano-García ◽  
Marina Corral-Bobadilla ◽  
Fátima Somovilla-Gómez ◽  
Rubén Lostado-Lorza ◽  
Ash Ahmed
Keyword(s):  
Theoretical Model ◽  
Wind Turbine ◽  
Optimization Algorithm ◽  
Hydraulic Cylinder ◽  
Road Transport ◽  
Automatic Testing ◽  
Transport Systems ◽  
The Road ◽  
Proposed Model ◽  
On The Road

The dimensions and weight of machines, structures, and components that need to be transported safely by road are growing constantly. One of the safest and most widely used transport systems on the road today due to their versatility and configuration are modular trailers. These trailers have hydraulic pendulum axles that are that are attached in pairs to the rigid platform above. In turn, these modular trailers are subject to limitations on the load that each axle carries, the tipping angle, and the oil pressure of the suspension system in order to guarantee safe transport by road. Optimizing the configuration of these modular trailers accurately and safely is a complex task. Factors to be considered include the load’s characteristics, the trailer’s mechanical properties, and road route conditions including the road’s slope and camber, precipitation and direction, and force of the wind. This paper presents a theoretical model that can be used for the optimal configuration of hydraulic cylinder suspension of special transport by road using modular trailers. It considers the previously mentioned factors and guarantees the safe stability of road transport. The proposed model was validated experimentally by placing a nacelle wind turbine at different points within a modular trailer. The weight of the wind turbine was 42,500 kg and its dimensions were 5133 × 2650 × 2975 mm. Once the proposed model was validated, an optimization algorithm was employed to find the optimal center of gravity for load, number of trailers, number of axles, oil pressures, and hydraulic configuration. The optimization algorithm was based on the iterative and automatic testing of the proposed model for different positions on the trailer and different hydraulic configurations. The optimization algorithm was tested with a cylindrical tank that weighed 108,500 kg and had dimensions of 19,500 × 3200 × 2500 mm. The results showed that the proposed model and optimization algorithm could safely optimize the configuration of the hydraulic suspension of modular trailers in special road transport, increase the accuracy and reliability of the calculation of the load configuration, save time, simplify the calculation process, and be easily implemented.

scholarly journals Goal-driven active learning

2021 ◽  
Vol 35 (2) ◽  
Author(s):  
Nicolas Bougie ◽  
Ryutaro Ichise
Keyword(s):  
Decision Making ◽  
Reinforcement Learning ◽  
Learning Process ◽  
Real World ◽  
Imitation Learning ◽  
Learning Approaches ◽  
Wide Range ◽  
Fixed Set ◽  
Complex Decision Making ◽  
Complex Decision

AbstractDeep reinforcement learning methods have achieved significant successes in complex decision-making problems. In fact, they traditionally rely on well-designed extrinsic rewards, which limits their applicability to many real-world tasks where rewards are naturally sparse. While cloning behaviors provided by an expert is a promising approach to the exploration problem, learning from a fixed set of demonstrations may be impracticable due to lack of state coverage or distribution mismatch—when the learner’s goal deviates from the demonstrated behaviors. Besides, we are interested in learning how to reach a wide range of goals from the same set of demonstrations. In this work we propose a novel goal-conditioned method that leverages very small sets of goal-driven demonstrations to massively accelerate the learning process. Crucially, we introduce the concept of active goal-driven demonstrations to query the demonstrator only in hard-to-learn and uncertain regions of the state space. We further present a strategy for prioritizing sampling of goals where the disagreement between the expert and the policy is maximized. We evaluate our method on a variety of benchmark environments from the Mujoco domain. Experimental results show that our method outperforms prior imitation learning approaches in most of the tasks in terms of exploration efficiency and average scores.

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