Heritage and Sustainable Development

Journal Information
EISSN : 2712-0554
Published by: Research and Development Academy (10.37868)
Total articles ≅ 50
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Sarah Sarac, Benjamin Durakovic
Heritage and Sustainable Development, Volume 4, pp 87-94; https://doi.org/10.37868/hsd.v4i2.91

Abstract:
In the past three years, the COVID-19 became a global health issue and had huge impact on education. This study investigates and compares the student performances after transition from face-to-face learning environment to online learning environments as a result of the spread of the pandemic. Data is collected from a large Bosnian public university and analyzed using statistical tools. In this study student success is defined as passing the course. The results showed that there is significant difference in the performances of students, and it is dependent on learning environment. Particularly, students who attended online classes have significantly higher-grade point averages.
Abderrahmane Khechekhouche, Abdelkader Bellila, Ali Sadoun, Imad Kemerchou, Belgacem Souyei, Nafila Smakdji, Abdelmonem Miloudi
Heritage and Sustainable Development, Volume 4, pp 95-100; https://doi.org/10.37868/hsd.v4i2.102

Abstract:
Solar distillation is an environmental technique that uses solar energy to treat polluted water. In this context, two solar stills of the same size (0.5 x 0.5 m) were exposed to the sun i.e., under the same weather conditions to see the effect of small iron parts on the production of pure water. The results showed that the modified solar still SSM which contained iron pieces had an improvement rate of 23.46% compared to the reference solar still SSR.
Fehim Findik
Heritage and Sustainable Development, Volume 4, pp 67-76; https://doi.org/10.37868/hsd.v4i1.84

Abstract:
Our planet is in danger for a number of reasons such as population growth, excessive energy consumption, and global warming that followed, the inability to manage waste and reduce water consumption. For sustainability, green concrete is defined as the use of waste materials and high-sustainability concrete that does not harm the environment in the production process. Proper green building should be energy efficient and use recycled aggregates. The emergence of sustainable structures in this way will reduce the need for fossil fuels, which is the main reason for universal heating. The environment can be perfectly sustainable only with zero use of non-renewable resources and a limited rate of regeneration and controlled use of renewable resources. This study considers the concept of environmentally friendly green concrete, which can be used instead of the traditional cement used in buildings that are being built due to the growing population. It was examined what needs to be done for the sustainable design of buildings and it was pointed out that in that way the emission of carbon dioxide into the atmosphere will be reduced. The use of green concrete for sustainable design and environmental protection was highlighted and several examples from around the world were highlighted.
Sabaa S. Radhi, Zainab S. Al-Khafaji, Mayadah W. Falah
Heritage and Sustainable Development, Volume 4, pp 42-52; https://doi.org/10.37868/hsd.v4i1.82

Abstract:
Maintaining the optimum temperature in the living quarters is the key to a comfortable stay. Due to the lack of a central heating system or in the event of its insufficiency, they resort to the installation of additional heat sources. There is a wide range of devices on the market with different operating principles, hence the difficulty of which is better - a convector or infrared heater. A comparative analysis of devices will help you make the right choice. Asking the question of which is better a convection heater or an infrared heater, one must decide on its role in heating the house. It is better to use them as additional equipment with an existing heating system. One of the effective sources of additional heating are infrared radiators. Its principle of operation is based on infrared radiation, which provides a quick and qualitative increase in temperature in any part of your apartment. Today, more and more people prefer infrared radiators. From the usual electric convector, they differ in that they heat not the air in the room, but hard surfaces (floors, walls) and objects, and these, in turn, leak heat into the surrounding space. So, the entire room is heated up unnoticeably.
Ali Sadoun, Abderrahmane Khechekhouche, Imad Kemerchou, Mokhtar Ghodbane, Belgacem Souyei
Heritage and Sustainable Development, Volume 4, pp 61-66; https://doi.org/10.37868/hsd.v4i1.80

Abstract:
Solar energy is an abundant energy in the earth globe. Solar distillation is one of the techniques that uses this energy to obtain portable water from ground or salt water. The purpose of our experimental study is to show that the blocks of natural carbon, that is to say the remains of a fire, can serve as an element for improving the performance of a solar still. For this, two similar solar stills were used, one is taken as reference SSR and the other modified still SSM contains carbon block. The results show that there is an improvement rate of 8%.
Ramo Palalic, Robert D. Hisrich, Leo Paul Dana, Veland Ramadani
Heritage and Sustainable Development, Volume 4, pp 18-26; https://doi.org/10.37868/hsd.v4i1.78

Abstract:
The COVID-19 pandemic has altered the way business is conducted. The widespread closure of commercial organizations presents opportunities to reset the way business activities are conducted. Regardless of the organization’s size or its status as a domestic or international firm, due diligence is required to find solutions that will allow firms to sustain their business activities in uncertain times. This study addresses this issue and attempts to identify issues that require urgent attention so that organizations can be effective and efficient in their global operations. In this context, the study proposes three imperatives for global/international businesses to sustain their operations in the long term. These imperatives include having a strong reserve fund, access to a local mutual fund, and networking to form alliances in host countries. Other implications are discussed, and we identify areas for future research.
Swati Chitranshi, Akanksha Gupta, Nagaji Sarkar, Priyanka Khare
Heritage and Sustainable Development, Volume 4, pp 32-41; https://doi.org/10.37868/hsd.v4i1.68

Abstract:
The study was aimed to assess culturable bacterial endophytes from the medicinal plant Aloe vera, their antimicrobial spectra against pathogens, and the potential of bacterial endophytes in textile and paper dyeing. Culturable seventeen bacterial endophytes were isolated from the Aloe vera plant out of which 16 showed varied antimicrobial activity against both human pathogens i.e., bacteria & fungi E. coli, S. pyogenes, acne bacterial isolate (ABI), A. niger, and F. oxysporum. Simultaneously, the bacterial endophyte ENDB3 is producing extracellular green-brown color pigment under submerged (SmF) condition and the extracted pigment has shown promising results in textile and paper dyeing at lab scale without using mordant. All the bacterial endophytes showed resistance against standard antibiotics (penicillin G P(10 units), Oxacillin (1 mcg), Cephalathin (30 mcg), Clindamycin (2 mcg), Erythromycin (15 mcg), and Amoxyclav (30 mcg)) at the specific concentration used. Concludingly, bacterial endophyte ENDB3 is found capable to produce bioactive molecules with pharmaceutical and dyeing industries which may provide a new path in the pursuit of new biological sources of drug and natural dyeing candidates. Hence, we suggest further evaluation and characterization of their bioactive molecules for pharmacological and dyeing potential.
Yitong Niu, Linqian Jiao, Andrei Korneev
Heritage and Sustainable Development, Volume 4, pp 53-60; https://doi.org/10.37868/hsd.v4i1.81

Abstract:
With the increase of harmful substances and greenhouse gases that need to be discharged from the traditional thermal power in industrial production in China, the phenomenon of climate warming is becoming more and more prominent. Clean energy will continue to increase in China's future energy consumption structure and market share, hydropower, nuclear power, and other energy as China's main clean energy, the future in China still has a huge market development and use of space. The new policies further adopted by the central bank of China include: continuously optimizing the structure of reasonable credit fund allocation and risk fund application for electric power enterprises to enhance the return rate of assets of electric power enterprises; continuously supporting the development of smart grid and strengthening the linkage between network and electric power; reasonably and categorically guiding the source of clean utilization of electric power, actively supporting large hydropower generation and solar and nuclear power generation, and investing funds in a controlled manner to support large thermal power generation, promote the upgrading of the thermal power generation industry structure, cautiously guide funds into large biomass power generation, wind power generation and small and medium-sized micro-hydro power, strictly control small and medium-sized thermal power, as soon as possible to withdraw from the implementation of the national preferential policies for small and medium-sized power industry management system, energy conservation and reduction of harmful emissions of environmental gases of enterprises is not possible to meet the standards and there are financial risks business efficiency situation Small and medium-sized electric power enterprises that continue to seriously deteriorate.
Damir Avdic, Sehabeddin Taha Imeci
Heritage and Sustainable Development, Volume 4, pp 9-17; https://doi.org/10.37868/hsd.v4i1.70

Abstract:
The goal of this work was to design, simulate, build, and test bow-tie antenna for 5G networks. In this paper, it will be shown how the radiation pattern and input match are improving by changing angles on some points of the antenna. The first angle is from the central point of the bow-tie antenna (mark A) and another angle is from the side points of the bow-tie antenna (mark B). Bandwidth improvement is shown in the simulation between 4 GHz and 6GHz. S11, E?, E? for the nominal design are -27.31 dB, 7.39 dB, -3.30 dB respectively. After simulations, the nominal antenna is fabricated and tested with reference antenna A-info LB8180. Simulation results, testing results with fabricated antenna, and angle change results will be shown in further text.
Adebola Adekunle, Iheoma Adekunle, Omobolaji Opafola, Tolulope Ogundare, Ayodeji A. Adeyeye
Heritage and Sustainable Development, Volume 4, pp 27-31; https://doi.org/10.37868/hsd.v4i1.60

Abstract:
The strong performance of fibre reinforced concrete with the stepped introduction of glass and sisal fibre was evaluated. In this study, fibres as light reinforcements with varying percentages of 0, 0.25, 0.50, 0.75, 1.00, 1.25 and 1.5 by weight of concrete were added to M15 grade concrete. The water/cement mix proportions ratio was 0.6. Control specimens, such as cubes were cast and tested at 7, 14, 21 and 28 days respectively to determine the mechanical properties. Glass fibre resulted in the most workable mix as compared to the sisal fibre with the highest slump and compaction factor of 19.50 mm and 0.93 respectively on the addition of 0.25% fibre. The addition of glass and sisal fibres in plain concrete (control) up to 1% increases the strength of concrete while the addition of fibres content greater than 1% resulted in a reduction in the strength of concrete. The optimum glass and sisal fibre content was 1% with maximum compressive strength of 36.50 N/mm2 and 34.67 N/mm2 at 28 days respectively. The experimental study revealed that glass fibre was stronger than sisal fibre. Hence, the fibre content of 1% is recommended for use as light reinforcement in concrete.
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