The Role of Bionic Modifications in Reducing Adhesion and Draft of Agricultural and Earthmoving Machinery

2013 ◽  
Vol 461 ◽  
pp. 553-561
Author(s):  
Rashid Qaisrani ◽  
Jian Qiao Li ◽  
Mohammad Iqbal
Keyword(s):  
Energy Consumption ◽  
Surface Morphology ◽  
Construction Materials ◽  
Force Analysis ◽  
Lubrication Mechanism ◽  
Limited Application ◽  
Practical Field ◽  
Adhesion Friction

Soil adheres to the surfaces of soil engaging components of earthmoving machinery and equipment. It has been pbserved that up to 50% of energy may be consumed in overcoming adhesion and friction of soil to the surfaces of soil engaging components of agricultural and earthmoving machinery. Surface morphology, chemical composition, elasticity, lubrication mechanism and electric osmosis play significant roles in reducing adhesion, friction and energy consumption of various equipment. Some of these techniques have very limited application in the practical field conditions because of the time and amount of fluid required to achieve the desired results. Whereas other techniques are effective in reducing adhesion and friction and improving work quality of these machines and equipment. This paper analyses the forces including the drafts of conventional and bionic bulldozing blades operating under identical conditions using mathematical modelling. The force analysis showed that both adhesion and friction play major role in reducing drafts of earrthmoving machinery. It is also worth stating that both the surface morphology and the construction materials play important role in reducing adhesion and friction of ground eganging components of earthmoving machinery.

The Challenge of Affordable Housing in Disasters: Western Iran Earthquake in 2017

2019 ◽  
Vol 14 (2) ◽  
pp. 289-291
Author(s):  
Mohammad Heidari ◽  
Neda Eskandary ◽  
Seyedeh Samaneh Miresmaeeli
Keyword(s):  
Developing Countries ◽  
Affordable Housing ◽  
Construction Materials ◽  
Poor Quality ◽  
Structural Components ◽  
Role Of Government ◽  
Western Iran ◽  
New Policies

ABSTRACTIn November 2017, a disruptive earthquake occurred in Western Iran. After the major earthquake in Kermanshah, most affordable buildings such as a hospital in Islamabad and a dozen schools were destroyed. According to experts, a dangerous location (construction on the fault), poor quality of concrete, inappropriate connection of the facade to the structure, the use of undesirable construction materials, and low quality of non-structural components are considered as the main reasons for these damages. Regarding the role of government in the developing countries, construction policies should be modified and new policies should be implemented to enhance the structural and non-structural resilience in the buildings.

Approaches and Concepts to Restructuring Human Resources Management Functions

2011 ◽  
pp. 2120-2129
Author(s):  
Peter M. Wald ◽  
Rainhart Lang
Keyword(s):  
Human Resources ◽  
Human Resources Management ◽  
Strategic Role ◽  
The Subject ◽  
Hr Managers ◽  
Management Functions ◽  
Hr Function ◽  
Practical Field

Nowadays, most human resources (HR) managers are confronted with cost pressure, the demand for offering “high-quality-HR services” and the necessity for strategic contributions (Hewitt, 2004). Human resource management (HRM) with its current structures and tools is often unable to completely fulfill these requirements. Therefore, a strong need for reorganization of HR as a function is obvious. In the last few years, many efforts have been undertaken by HRM practitioners to re-structure HRM at the level of organizations as reflected in surveys or case studies from leading firms. Examples can be found in Som (2003) and Fairbain (2005). Moreover, the restructuring of the HR function has been the subject of a broad discussion among scientists and researchers in the field of management (Becker & Huselid, 1999; Caldwell, 2003, 2004; Truss, Gratton, Hope- Hailey, Stiles, & Zaleska, 2002). It is remarkable that this discussion has mainly focused on the strategic role of HRM (Lawler III, 2005), and consultants in the practical field have particularly given advice to improve the quality of HR services (Hewitt, 2004; Towers Perrin, 2005). A more complex view on the restructuring of HRM is rarely to be found.

Approaches and Concepts to Restructuring Human Resources Management Functions

2009 ◽  
pp. 48-55
Author(s):  
Peter M. Wald ◽  
Rainhart Lang
Keyword(s):  
Human Resources ◽  
Human Resources Management ◽  
Strategic Role ◽  
The Subject ◽  
Hr Managers ◽  
Management Functions ◽  
Hr Function ◽  
Practical Field

Nowadays, most human resources (HR) managers are confronted with cost pressure, the demand for offering “high-quality-HR services” and the necessity for strategic contributions (Hewitt, 2004). Human resource management (HRM) with its current structures and tools is often unable to completely fulfill these requirements. Therefore, a strong need for reorganization of HR as a function is obvious. In the last few years, many efforts have been undertaken by HRM practitioners to re-structure HRM at the level of organizations as reflected in surveys or case studies from leading firms. Examples can be found in Som (2003) and Fairbain (2005). Moreover, the restructuring of the HR function has been the subject of a broad discussion among scientists and researchers in the field of management (Becker & Huselid, 1999; Caldwell, 2003, 2004; Truss, Gratton, Hope-Hailey, Stiles, & Zaleska, 2002). It is remarkable that this discussion has mainly focused on the strategic role of HRM (Lawler III, 2005), and consultants in the practical field have particularly given advice to improve the quality of HR services (Hewitt, 2004; Towers Perrin, 2005). A more complex view on the restructuring of HRM is rarely to be found.

scholarly journals Human-centered Approach for Proper Functioning of LEED Criteria; A Case Study in Tehran

2019 ◽  
Vol 6 (1) ◽  
pp. 109-121
Author(s):  
Seyed Hossein Zargar ◽  
Fatemeh Dehghani Firouzabadi ◽  
Mojtaba Zareie ◽  
Saeid Khaghani
Keyword(s):  
Energy Consumption ◽  
Building Design ◽  
Proper Function ◽  
Interactive System ◽  
The Times ◽  
The Individual ◽  
Indoor Spaces

Buildings are rated in five main categories according to the LEED standard to receive an environment-friendly design certificate. Sustainability, water efficiency, material properties, energy consumption, and the quality of indoor spaces are main criteria which confirm the proper function of a building in terms of optimal energy consumption. However, the role of residents and behavioral aspects in the consumption of energy and the decent application of energy standards are neglected. It is beyond doubt that the residents’ behavior is one of the most important factors in performance-based building design. Moreover, the individual mistakes, which most of the times cause energy dissipation, cannot be ignored. This research proposes "Integrated Interactive System" as a human-centered approach with the aim of minimizing energy consumption. A survey is conducted, and this system is evaluated as a case study in Tehran.

scholarly journals The Role of Inland Waterway Transport in City Logistics

2019 ◽  
Vol 84 ◽  
pp. 103-114
Author(s):  
Krystyna Wojewódzka-Król ◽  
Ryszard Rolbiecki
Keyword(s):  
Construction Materials ◽  
Noise Pollution ◽  
Urbanization Process ◽  
Inland Waterways ◽  
Passenger Traffic ◽  
European Cities ◽  
Inland Waterway ◽  
Mode Of Transport

The urbanization process indicates that today’s cities are the main centres where transport demands accumulate. This causes, in effect, an increase in freight and passenger traffic, which in turn contributes to a rise in environmental and noise pollution, accidents, and thus a deterioration of the quality of life in cities. Bearing in mind the numerous advantages of inland waterway transport, it can be assumed that in cities located near inland waterways, this branch can be seen as an important link in the urban logistics chain. Therefore, the aim of this article is to indicate the possibility of using this mode of transport to handle transport needs in cities. Thearticle uses the method of desk research, based on analysing andverifying facts and merging existing statistical data on the urbanization process and experiences related to the use of inland waterway transport to handle various transport needs in selected European cities. The article shows that in cargo transit, the use of inland waters in urban logistics is an attractive branch of transport, not only in such areas as transportation of construction materials or waste collection but also in transport related to the supply of stores. Positive experiences of Western European cities should inspire action to increase the use of this branch in urban logistics in Poland, e.g., in the city of Gdańsk, located above the Motława waterway.

Thermal Insulation System for Energy Efficiency

2014 ◽  
Vol 632 ◽  
pp. 57-67
Author(s):  
K.K. Mitra
Keyword(s):  
Energy Consumption ◽  
Thermal Insulation ◽  
Air Conditioning ◽  
Construction Materials ◽  
Heating System ◽  
Building Construction ◽  
Air Conditioner ◽  
Insulation System ◽  
Human Comfort

Building construction has gone for tremendous changes during the last decade. The total building architecture including construction system and external finish has improved tremendously. Now a days even residential houses are tailor made to individual requirements. As we all know with the improvement in quality of life, earnings, living style, the building construction methodology and construction materials have got modified to suit the life style of people. Previously in residential houses use of room air conditioner was a rare commodity, but now it has become very common. In fact now we find that air conditioning has become a necessity. The art of living has changed and human comfort is given a lot of importance. Buildings including residential houses hence consume lot of energy now a days. Buildings world over consume more than 40% of the Energy Generated followed by Industry (32%) and Transportation (28%). With the increase in electronic gadgets in the houses along with air conditioning and heating system energy consumption becomes enormous. It is in this context of energy consumption and human comfort the function of Thermal Insulation in buildings has become an important construction element. Thermal insulation is directly linked to human comfort and reducing energy consumption that is creating Energy Conservation.

Study the Thermal Impact of Massive Waste Material to Building Construction

2012 ◽  
Vol 268-270 ◽  
pp. 945-951 ◽  
Author(s):  
Muhammad Abu Eusuf ◽  
Abdullah Al Hasan ◽  
Sharonee Sidek
Keyword(s):  
Energy Consumption ◽  
Thermal Environment ◽  
Construction Materials ◽  
Energy Performance ◽  
Vital Role ◽  
Waste Material ◽  
Thermal Impact ◽  
Energy Management Strategy ◽  
Indoor Thermal Environment

This study focuses on the recycling of massive waste materials and their thermal impact to buildings, which then adapt the indoor thermal environment. It is observed that the role of construction materials modify the building interior and consequently regulates the indoor thermal environment and focus on the reduction of energy consumption at large. The rapid growth of energy consumption has raised concerns in worldwide. This has caused mainly the exhaustion of energy resources. Efficient employs of energy play a vital role in minimizing the energy usage. Having in mind the aim to seek for contextual alternative building material from waste to obtain continuing improvement in building energy performance, then this study has been designed to do experiments on locally available massive waste material (end-of-life tires, or ELTs) and investigate its thermal impact on indoor energy management strategy. For that reason, it is needed to set up an experiment to observe the role of ELT for thermal comfort in a tropical climate as compared to conventional construction materials and other waste. This contribution mainly focuses on the literature and a proposed methodology.

scholarly journals Importance of Instrumentation in Hydropower Projects vis-à-vis Quality Control

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
B. N.V. Siva Prasad ◽  
Sripad R. Naik
Keyword(s):  
Mechanical Properties ◽  
Quality Control ◽  
Structural Design ◽  
World Wide ◽  
Water Pressure ◽  
Construction Materials ◽  
Structural Performance ◽  
Similar Kind

With the advancement of science and technology, humans endeavored to build massive structures, both on and sub – surface taking the advantage of physico-mechanical properties of the construction materials like concrete, steel, wood, rock, etc. Quality is the standard of something as measured against other things of a similar kind. The term itself is subjective until and unless quantified, can’t be controlled. Instrumentation plays a major role to quantify the quality of materials and check if the resources meet the requirements of the structural design. Several types of instruments are developed and used world-wide in different structures to monitor water pressure, seepage, movements, vibration, temperature, stress, strain and other significant parameters. The role of instrumentation specialist lies in understanding the dominating phenomena in the planned structure, designing the instrumentation network, monitoring schedules and timely analysis for cautioning the engineers, designers, quality personnel and the project management to have a check on construction measures vis-à-vis structural performance.

scholarly journals The role of Income, Trade, and Environmental Regulations in Ensuring Environmental Sustainability in MINT Countries: Evidence from Ecological Footprint.

2021 ◽  
Vol 39 (8) ◽  
Author(s):  
Solomon Prince Nathaniel ◽  
Festus Fatai Adedoyin
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Environmental Degradation ◽  
Environmental Sustainability ◽  
Ecological Footprint ◽  
Sustainable Development Goals ◽  
Environmental Regulations ◽  
Development Goals

Income alone cannot ensure environmental sustainability. As such, different economies have relied on environmental regulations to preserve the quality of their environment. The efficiency of such regulations on environmental degradation is still unclear in developing countries culpable for lax environmental regulations. As such, this study explores the effect of environmental regulations on the ecological footprint (EFP) in MINT (Mexico, Indonesia, Nigeria, Turkey) countries from 1980-2016. The results suggest that energy consumption, trade and GDP increase the EFP while environmental regulations reduce it thereby mitigating environmental degradation, though insignificantly. This indicates that environmental regulations are not totally successful in mitigating ecological distortions in the sample countries. The study applies the FMOLS estimator to obtain the country-wise results. There is evidence that energy consumption increases the EFP in all MINT countries. The same influence is exacted by trade on the EFP, except in Turkey. The abating role environmental regulations on environmental degradation were confirmed in all the countries. It was significant in Nigeria and Turkey, but no in Mexico and Indonesia. Further findings revealed a bidirectional causality between GDP and EFP. Policy directions are discussed within the framework of Sustainable Development Goals (SDGs).

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