Routing Hazardous Materials Transports Using Dynamic Programming and MADM Methods

Routing Hazardous Materials Transports Using Dynamic Programming and MADM Methods

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Part of #Routing Hazardous Materials Transports Using Dynamic Programming and MADM Methods# :

Publishing year : 2008

Conference : First Conference on the Transport of Hazardous Materials and its Environmental Impact

Number of pages : 10

Abstract: The purpose of this paper is to study the routing problem for transporting hazardous materials. Hazardous materials refer to those materials that seriously endanger human lives and / or the environment. This problem is different from usual routing problems. First, according to the type of shipment, the safety of the route should be considered in addition to distance, and therefore the problem is multi-objective in nature. Secondly, the safety of a route is evaluated using a risk function which is not additive in relation to road network links attributes, and therefore the usual shortest path algorithms can not be used. Moreover, the risk is multi-dimensional in nature and this must also be considered too. In this paper, the dynamic programming (DP) method is used. DP can produce multiple paths between source and destination. This feature makes it possible for decision maker to evaluate different paths and choose the best one. In this paper, a MADM method is proposed for facilitating the evaluation process. At the end, the decision making process is demonstrated using case study.

An Overview on Hyper-Spectral Camera System

An Overview on Hyper-Spectral Camera System

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Part of #An Overview on Hyper-Spectral Camera System# :

Publishing year : 2013

Conference : The First National Conference on New Approaches in Computer Engineering and Information Retrieval

Number of pages : 5

Abstract: Today, many optical analytical techniques have been used in various cameras for different purposes, one of these important optical analysis techniques is the Hyper-Spectral Camera System, which can be used to obtain information from cultural heritage objects unavailable with conventional color or multi-spectral Photography Portable, a video-camera system built by the University of Bristol for the UK-DRA, Fort Halstead, allows in-field acquisition of terrestrial hyper-spectral image sets. Each set is captured as a sequence of thirty-one images through a set of different interference filters that span the visible spectrum at 10 nm intervals: effectively providing a spectrogram of 256×256 pixels. Much recent efforts have been expended in the development of hyper-spectral imaging devices for both terrestrial and remote-sensing applications. In this article, our goal is to report manifest information on this subject and we also illustrate HySpex hyperspectral camera system.

GLOBAL CHANGES AND ADAPTING WATER MANAGEMENT

GLOBAL CHANGES AND ADAPTING WATER MANAGEMENT

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Part of #GLOBAL CHANGES AND ADAPTING WATER MANAGEMENT# :

Publishing year : 2009

Conference : Second International Conference on Water, Environment and Sustainable Development in Arid and Semi-arid Areas

Number of pages : 6

Abstract: Withdrawals of water, the construction of structures, land-use shifts, pollution and habitat modification and destruction have degraded many rivers, lakes and wetlands. In the last decade, anthropogenic climate change has also begun to change the water availability and water availability in central and south-west Asia. Climate change may be manifested in various ways, all of which have been observed in recent decades in Iran. Climate variability increases extreme weather events such as flood or drought and nature destruction by human, increases in the frequency or intensity of events. This force will continue to be strengthened in the foreseeable future. Drought disaster is still a serious problem in this region due to global warming and human activity. Adopting water management, strong institutions, and proper governance are essential for integrating drought risk issues into a sustainable development and disaster risk reduction process. An effective demand management of available water resources in the country needs to deal with the following issues: water protection to meet basic needs for various uses, minimizing water losses, allocating scarce water for socioeconomic development, and protecting the environment from degradation and loss of productive capacity. Water demand management is not just a technology to apply or a program to deliver, but a form of governance. Training farmers in special techniques such as soil and water conservation, water harvesting, small-scale irrigation can play a major role in the process of drought mitigation. In this paper, we first illustrated some of the causes of climate change in Central and South-West Asia, especially in Iran, and in the second step, we have some recommendations and strategy to verify the conflict condition, to protect water supply for better human life and protect groundwater and keeping the rivers alive. In general, two important points can be suggested: developing regional and national policies and planning for mitigation of the pest disaster and establishment of a regional center for monitoring of the pest, risk assessment and appropriate risk reduction measures.

Introducing correctness coefficient as an accuracy measure for sub pixel classification results

Introducing correctness coefficient as an accuracy measure for sub pixel classification results

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Part of #Introducing correctness coefficient as an accuracy measure for sub pixel classification results# :

Publishing year : 2004

Conference : Geomatics conference

Number of pages : 12

Abstract: After each classification, its results must be evaluated and their accuracy must be evaluated. In relation to the result's type (thematic map / fraction map), an appropriate strategy for the accuracy assessment must be selected. Methods of accuracy estimation for traditional pixel-based classifications are not fully suitable for sub pixel classifications. Because the training and ground truth data are pixel-based and they can not be used directly for the accuracy of sub-pixel classification results (fraction maps). Generally, there is no common and standard sub-pixel accuracy estimation method for sub pixel classification results. Very few methods and measures such as entropy and cross entropy have been proposed for sub pixel accuracy evaluation. These have some limitations to be used in the accuracy of the sub pixel classi fi cation results. Cross entropy needs a fuzzy ground truth data set, the matter that is not available simply. For this purpose, we introduce the correctness of the coefficient parameter for the sub pixel accuracy evaluation. Correctness coeffient expresses the matching rate of subpixel classification (fraction maps) with ground truth data. Correctness coefficient is one of the efforts to ensure the sub-pixel accuracy measurement flexibility and consistency regarding available data and classification methods. The proposed method for the accuracy of the sub pixel classifiers makes it possible to inspect the classes individually. Additionally, each class can be investigated individually in relation to the corresponding commission and omission errors. An experiment using the real data has been implemented in order to show the ability of the new precision measure.

Spatially Varied Flow Profiles in a V-shaped Side-Channel Spillway

Spatially Varied Flow Profiles in a V-shaped Side-Channel Spillway

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Part of #Spatially Varied Flow Profiles in a V-shaped Side-Channel Spillway# :

Publishing year : 2003

Conference : 6th International Conference on Civil Engineering

Number of pages : 8

Abstract: Spatially variable flows in open channels occur in a wide variety of hydraulic structures as well as road / bridge surface drainage channels. The equation of motion for a spatially variable flow in an open channel, being produced by lateral or a vertical inflow, has been treated before. However, these are not applicable to the runoff phenomenon from a flat surface, which is an example of a spatially diverse flow. This paper reviews the state of the subject and presents the experimental data applying a mathematical derivative of a practical equation of motion. Several series of experiments are carried out in a vshaped bottom channel. These experiments are used to model specific rainfall intensity and discharge. For this particular channel shape, longitudinal water surface profiles are plotted and are compared with the profiles given by the equation of motion treated for this channel shape. The analysis of the results agrees well with the experimental data and the proposed equation for supercritical flows. The results, however, show that the profile of the slope does not normally increase as the flow discharge increases at the end of the channel. This result confirms that the flow resistance in spatially varying flow as well as critical depth position along the channel and cross sectional shape should be taken into account.

A Novel Control Methodology of the GCSC for Damping the SSR Oscillations based on the Neural Networks

A Novel Control Methodology of the GCSC for Damping the SSR Oscillations based on the Neural Networks

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Part of #A Novel Control Methodology of the GCSC for Damping the SSR Oscillations based on the Neural Networks# :

Publishing year : 2013

Conference : 21st Iranian Conference on Electrical Engineering

Number of pages : 7

Abstract: In this manuscript, a new neural network controller applied to the damping of the sub-synchronous resonance (SSR) originated from the use of a gate-controlled series capacitor (GCSC) in a series of compensation of a transmission is analyzed. The lowest-cost configuration of the GCSC is just discussed in this research. In addition, this method has the capability of damping the low-frequency power oscillations (LFPO). It is shown that the GCSC can wet both the SSR and LFPO using the neural networks methodology. In this study, the IEEE First Benchmark Model including a GCSC is employed and the software used for simulation is MATLAB. A good comparison is done between the proposed methodology and theprevious control procedures. The priority index of the proposed methodology is to reduce the damping time in accordance with other references

Effect of Risk Management on Organizational StrategicPerformance in SEO

Effect of Risk Management on Organizational StrategicPerformance in SEO

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Part of #Effect of Risk Management on Organizational StrategicPerformance in SEO# :

Publishing year : 2016

Conference : Second International Conference on Management and Humanities

Number of pages : 6

Abstract: In all organizations, especially service organizations, risk management is a key to maintain and attract customers in order to improve organizational performance. On the other hand, environmental changes and competitive dynamics have prompted organizations to beeconomy to maintain advantage, to achieve customer satisfaction and to gain new customers. In this descriptive survey, the population studied includes staff, members, brokers and auditorsof SEO. Using random sampling, 69 samples are selected for this study. The results show that SEO well performs in terms of four aspects of organizational strategic performance management. Furthermore, there is a positive and significant relationship between some aspects of organizational performance and risk management

A New Method for Recommending Tags Associated with the Use of Discovering Relationships Among Tags

A New Method for Recommending Tags Associated with the Use of Discovering Relationships Among Tags

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Part of #A New Method for Recommending Tags Associated with the Use of Discovering Relationships Among Tags# :

Publishing year : 2014

Conference : First International Conference on Knowledge, Information and Software Engineering

Number of pages : 6

Abstract: Tagging has become a powerful tool for users to find, organize, understand and express their ideas and about online entities. However, researchers have tried to combinetagging with prediction methods and recommending systems; So this is faced challenges. Different ways are implemented forusers who tag, and those who do not. In the Movielens website, which is modeled based on users' direct and indirect behaviors. In this paper, we present a method for recommending and selecting tags for more accurate and detailed tagging, which is more for user preferences.

The supplementary irrigation effects on drought tolerance and ornamental characteristics of safflower genotypes

The supplementary irrigation effects on drought tolerance and ornamental characteristics of safflower genotypes

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Part of #The supplementary irrigation effects on drought tolerance and ornamental characteristics of safflower genotypes# :

Publishing year : 2015

Conference : International Conference on Science and Technology

Number of pages : 5

Abstract: Supplementary irrigation is a high-performance operation for increasing crop production and income of farmers in dry land conditions. An experiment was conducted in 2013-14 at the North Khorasan Dryland Agricultural Research Station (Shirvan). The experimental design was split plot based on Randomized Complete Block Design with four replications. Factors were included in five levels of irrigation, ie the main factors in irrigation, irrigation at rosette stage, flowering stage, seed filling and irrigation in flowering + seed filling, and sub factors were varieties in three levels (Feraman, Sina and Syria) . Results showed that the effect of supplementary irrigation on the harvest index, seed number per head head, seed number in branch heads, 1000-kernel weight and grain yield was significant. The highest biomass was obtained in Feraman with 1.69 kg / m2. Feraman had the highest plant height, and could produce more biomass than other varieties. The effect of supplementary irrigation on traits: stand, days to elongation, start and end of flowering, RGR, CGR, number of branches, number of hollow seeds and number of branch heads (number of flowers) was not significant. Mean comparison showed the superiority of irrigation at flowering stage in comparison with other treatments, and the highest yield was obtained with irrigation at the flowering stage in Feraman with 423.43 kg / ha. The highest harvest index was observed in Feraman with irrigation at the flowering stage

Empirical equation for several Geotechnical and rock Mechanical characteristics

Empirical equation for several Geotechnical and rock Mechanical characteristics

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Part of #Empirical equation for several Geotechnical and rock Mechanical characteristics# :

Publishing year : 2015

Conference : 10th International Congress of Civil Engineering

Number of pages : 8

Abstract: A series of empirical equations between several geotechnical and rock mechanical properties are determined at eleven-site executive datum. Geologic notations and statistical discussions are used for arrangement and intermixture of datum (laboratory test results and tests in boreholes). Because of many parameters have an effect on soil and rock mechanical and chemical behaviors, there have been attempts to neglect less important parameters. By determination of the empirical equation we can suitably assume other parameters. Empirical equations are obtained by Relating the following parameters: 1- Percentages of Sulphate, Chalk and PH in the soil. 2- Dry weight, specific gravity and normal unit weight. 3- Water content (normal) and water content (optimum). 4- Standard penetration test (Nspt) and allowable bearing (Qu). 5- RQD and reading (permeability coefficient). 6- RQD and sampling depth in rocks. 7- Coefficient of consolidation (Cv) and coefficient of compressibility (Cc). 8- Others