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A Hybrid Model for Back-Break Prediction using XGBoost Machine learning and Metaheuristic Algorithms in Chadormalu Iron Mine

کلیدواژه: backbreak, extreme gradient boosting (XGB), Particle swarm optimization (PSO), gray wolf optimization (GWO), Chadormalu iron mine

نویسندگان: Nabavi Zohreh, Mirzehi Mohammad, Dehghani Hesam, Ashtari Pedram

ناشر: معدن و محیط زیست - JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)

Back-break is one of the adverse effects of blasting, which results in unstable mine walls, high duration, falling machinery, and inappropriate fragmentation. Thus, the economic benefits of the mine are reduced, and safety is severely affected. Back-break can be influenced by various parameters such... ادامه

سال:2023

لینک به محتوا با زبان هدف

نوع سند: Article

5 دانلود

13 بازدید

مشاهده/دانلود

The Relationship between Corporate Governance Mechanisms and the Likelihood of Fraudulent Financial Reporting

کلیدواژه: Internal Control,Board of Directors,Corporate Governance,Fraudulent Financial Reporting

نویسندگان: MEHRABANPOUR MOHAMMADREZA, Noorizadeh Zohreh

ناشر: تحقیقات حسابداری و حسابرسی (تحقیقات حسابداری) - JOURNAL OF ACCOUNTING AND AUDITING RESEARCHES (ACCOUNTING RESEARCH)

The aim of conducting this study is to examine the relationship between corporate governance mechanisms and possibility of fraudly financial reporting by companies. This study is conducted by using a descriptive – correlation method and is an applied study. Population of this study is consist... ادامه

سال:2019

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

14 بازدید

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Corporate Governance, Social Responsibility Disclosure, the Company's Value

کلیدواژه: Company's Value,Concentration of Ownership,Corporate Governance,Block Ownership,Social Responsibility

نویسندگان: HAJIHA ZOHREH, SHAKERI ABDOREZA

ناشر: پژوهش های حسابداری مالی و حسابرسی - The Financial Accounting and Auditing Researches

Corporate social responsibility and related disclosures are critical to the continuity of corporate activities. The purpose of this paper is to study the relation between corporate governance, social responsibility and the company’ s value among the firms listed in Tehran Stock Exchange. The ... ادامه

سال:2020

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

16 بازدید

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Audit Committee Characteristics and Financial Statement Comparability with the Moderating Role of Audit Firm Size and Corporate Governance

کلیدواژه: Audit Committee,Audit Firm Size,Corporate Governance,Financial Statement Comparability

نویسندگان: HAJIHA ZOHREH, Azadzadeh adeleh

ناشر: دانش حسابداری مالی - JOURNAL OF FINANCIAL ACCOUNTING KNOWLEDGE

Purpose: The main objective of this study is to investigate the relationship between audit committee characteristics and comparability of financial statement with the moderating role of audit firm size and corporate governance. Methods: In this study, have been investigated 56 firms listed on Tehran... ادامه

سال:2019

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

14 بازدید

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A Proposed Pattern of Enterprise Risk Management in Insurance Companies

کلیدواژه: Enterprise risk Management,Own Risk and Solvency Assessment,Insurance,Corporate Governance and Solvency

نویسندگان: DEHGHANI ALI, SHAHRYAR BEHNAM

ناشر: پژوهشنامه بیمه - Iranian Journal of Insurance Research

The main purpose of this paper is to present an enterprise risk management for insurance companies in line with establishing Corporate Governance System with supervisory considerations. Therefore, we initially introduce theoretical aspects of international standards and frameworks of Enterprise Risk... ادامه

سال:2018

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

14 بازدید

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Modeling and Evaluation of Hybrid Covert Timing Channel on Internet Using Coloured Petri net

کلیدواژه: Covert Timing Channel,Inter-Packet Gap,Packet Reordering,Packet Loss,Modeling Coloured Petri Net

نویسندگان: DEHGHANI M., SALEH ESFAHANI M.

ناشر: علوم و فناوری های پدافند نوین - Advanced Defense Science and Technology

Covert timing channels are used to transmit information through computer networks in a seamless or secret way. Inter-packet gap and packet reordering are among techniques of encoding information in covert channels. Several reports on evaluating the capacity and the robustness of covert channels are ... ادامه

سال:2014

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

13 بازدید

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The Relationship between Corruption, Corporate Governance, and Firm Financial Return at the Provincial Level

کلیدواژه: Corruption, Corporate governance, Financial Return, Return on Assets (ROA), Tobin’s Q

نویسندگان: Esmaeili Amir Mohamad, Nasrollahi Zahra, Aref Manesh Zohreh

ناشر: مدیریت دارایی و تامین مالی - Journal of Asset Management and Financing

Abstract
Researchers have often examined corruption based on perceptual criteria and nationally. The innovation of this research was to take the two advantages of objective documentation and local dimensions in defining the corruption index. This study used a local and objectiv... ادامه

سال:2022

لینک به محتوا با زبان هدف

نوع سند: Article

2 دانلود

8 بازدید

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Investigation of Dissolved Oxygen Levels in the Karun River Water Using Hybrid Models Based on Support Vector Regression

کلیدواژه: Dissolved Oxygen, Support vector regression, Karun, Modeling

نویسندگان: Babaali Hamidreza, Nohani Ebrahim, Dehghani Reza

ناشر: هیدروفیزیک - HYDROPHYSICS

Oxygen plays a vital role in maintaining the balance of life cycles in all ecosystems. Aquatic life is highly sensitive to dissolved oxygen (DO) levels. This necessitates not only continuous monitoring of DO in aquatic environments but also the development of accurate predictive models for future DO... ادامه

سال:2024

لینک به محتوا با زبان هدف

نوع سند: Article

5 دانلود

12 بازدید

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The Potential of the Hybrid Support Vector Regression Model for Predicting River Sediment Discharge (Case Study: Keshkan-Lorestan River)

کلیدواژه: Kashkan, Support vector regression, suspended sediments, Modeling

نویسندگان: Babaali Hamidreza, Nohani Ebrahim, Dehghani Reza

ناشر: هیدروفیزیک - HYDROPHYSICS

Providing a robust and reliable predictive model for river sediment discharge is an essential task for several environmental and geomorphological perspectives, including water quality, riverbed engineering sustainability, and aquatic habitats. In this research, a new hybrid intelligent approach base... ادامه

سال:2023

لینک به محتوا با زبان هدف

نوع سند: Article

4 دانلود

8 بازدید

مشاهده/دانلود

Modeling Groundwater Level in Delfan Plain, Lorestan Province, Using Hybrid Metaheuristic Models

کلیدواژه: Groundwater Level, Artificial neural network, Metaheuristic optimization, Delfan plain

نویسندگان: Nohani Ebrahim, Babaali Hamidreza, Dehghani Reza

ناشر: آبخوان و قنات - Journal of Aquifer and Qanat

Groundwater is often a crucial source of freshwater worldwide, particularly in arid and semi-arid regions. In these areas, groundwater resources are vital due to variable rainfall and high evaporation rates. Groundwater use is increasing in arid and semi-arid regions due to population growth, rapid ... ادامه

سال:2024

لینک به محتوا با زبان هدف

نوع سند: Article

3 دانلود

13 بازدید

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