Technium Romanian Journal of Applied Sciences and Technology

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EISSN : 2668-778X
Published by: Technium Science (10.47577)
Total articles ≅ 132
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Ita Minarni, Henry Wardhana, Mufidah Asyari, Aqli Mursadin
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 103-109; https://doi.org/10.47577/technium.v3i8.4934

Abstract:
Infrastructure in the form of bridges is very important for Buntok Regency in Central Kalimantan where the area is swampy or lowland area. Total wood bridge construction is 45% from total 163 bridge in this area that most of them are not proper condition considering some wood materials need to be replaced. The innovation has been created to find the effective way how to maintenance the wooden bridge that has been idle for long time due to broken material on superstructure of the bridge. The floor of bridge that constructed with previous materials of ulin wooden bridge replaced by composite materials with floordeck concrete combination. The implementation of Tampa Bridge maintenance innovation showed better performance in terms of safety, comfortable and smoothness of bridge users from community around. In terms of budget aspect, the maintenance is cumulatively more efficient than if carrying out floor changes every year considering no longer possible to find ulin wood anymore. On technical point of view, with reinforced concrete can be applied to wooden bridges selectively only on ulin wooden bridges whose substructure is still intact and only minor damage to the spoorband and floor occurs. Bridge maintenance procedures need to be create to keep better maintenance for longer life time of the existing bridge that can be applied for another wooden bridge for maintenance.
Hasim Hasim, Nadia Baidi, Syamsuddin Syamsuddin, Rully Tuiyo
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 42-57; https://doi.org/10.47577/technium.v3i8.4581

Abstract:
Vannamei shrimp is a fishery commodity that has important economic value for Indonesia. This is indicated by the increasing number and value of exports of this commodity. One of the efforts to encourage the production of vaname shrimp is through the use of probiotics. sanolife-MIC is a probiotic widely used in shrimp culture. The aim of the study was to analyze the feed profile and biological performance of Vaname PL 10 shrimp fed pellets with the Sanolife MIC-S probiotic capsule at different doses. The research method used is an experimental method using a completely randomized design (CRD) with four treatments (A: probiotic 0 gr/kg feed; B: probiotic 10 gr/kg feed; C: probiotic 12 gr/kg feed; D: probiotic 14 g/kg feed) and three replicates. What was tested in the study were probiotic profile tests, growth, feed efficiency and feed conversion. The data obtained were analyzed using ANOVA. The results showed that the feed profile that was encapsulated using sanolife MIC-S, the protein value, moisture content and ash content for the feed were shown by treatment B. The best fat content was treatment C. The best crude fiber content was treatment D. Weight growth rate, ratio The best feed conversion and feed efficiency was shown by treatment B, while the length growth and survival was indicated by treatment C.
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 32-41; https://doi.org/10.47577/technium.v3i8.4692

Abstract:
Present, we are in the world of digital revolution. Use of smartphones and internet accelerated due to the impact of the novel Covid-19 virus. The whole world started to turn digital. The industrialization of Internet of Things (IoT) enables more devices to connect and communicate which leads to many data transfer transactions. The architecture of IoT is centralized. The distributed and decentralized architecture of Blockchain can be used to provide secure and scalable transactions of IoT devices. Blockchain is a distributed ledger technology, which provides secure data transactions that cannot be tampered and altered. In this paper, we provide advantages and challenges of integrating IoT and Blockchain. We also provide different architectures and algorithms proposed by researchers to provide secure data transactions. We shall also shed light on the future research directions of integrating Blockchain and IoT.
Ardi Novra, Adriani Yogaswara, Fatati Abubakar
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 110-125; https://doi.org/10.47577/technium.v2021i1.4022

Abstract:
This article describes a new idea of how the level of intervention in household empowerment policies is based on an empirical study of the magnitude of the negative impact of the smallholder palm oil replanting (SPR) program. One of the negative impacts of this program is the temporary loss of income (TLI) for farmer households due to the cessation of production of oil palm fruit bunches. The household survey research was conducted in three village centers for smallholder oil palm plantations in Jambi Province, Indonesia. The research result shows that the average potential TLI in each household if replanting palm oil is carried out is IDR 2,364,644/ month (equivalent to 74.55% of the oil palm household income or 39.78% of the regional economy), Purwodadi Village is the village most vulnerable to regional economic disturbances due to the high potential for TLI, reaching 99.43% of the oil palm household income and 67.06% of the regional economy. The level of TLI is influenced by factors of age and area of old oil palm plants, the proportion of households that will undergo the replanting process, and the level of dependence of regions on oil palm. Based on the results of the research, it can be concluded that there is still a need for innovation and expansion of empowerment to encourage household readiness in facing the SPR program.
Zainab I. Al-Assadi, Fawzia Asadi, Ban M. Alameri
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 83-91; https://doi.org/10.47577/technium.v3i8.4829

Abstract:
The Building design in a correct way and totalitarian requires integration of using solar energy technologies in the architectural design stage of the roofs and facades as the most appropriate places to obtain solar energy because it greatly affects the architectural aesthetic. This integration has to be taken into account at the design stage, which leads to effective and attractive solutions. Architecture needs the energy to complete its functions to increases human effectiveness and ability to do its tasks better, solar energy is the main factor of providing the necessary energy due to its abundance as well as being clean energy and does not cause polluting emissions to the environment. To provide a comfortable indoor environment for the occupants, Solar Thermal Collectors (STC) and Photovoltaics Cells (PV) used, which convert solar energy into thermal energy and electrical energy, respectively. The main problem of this study is concerning with the problems of the black color, visible tubes, metallic strip gradients (absorption strip), and welding points of the solar systems which gives the facades of the buildings an undesirable view and weakens the aesthetic aspect of the buildings and limits the abilities of architects to use because of their black color and undesirable aspect. The aim of this study is a design of optical interference filter (multilayer coatings) prepared by RF magnetron sputtering as a solution to the problem of black color, visible tubes, metallic strip gradients (absorption strip), and welding points in solar thermal collectors and photovoltaic cells, which are the main reasons for not using solar systems as building facades, this technique works to increase the efficiency of the solar systems and increase the amount of clean energy generated, also enhancing the expressive and aesthetic aspect of facades of buildings. In the NIR region this filter works as an anti-reflective coating. Also the coating includes a high color reflection at a certain wavelength in the VIS region to give the solar system an aesthetic feature, which is used as building facades by using appropriate dielectric substances with high and low reflective indexes likes SiO2 and MgF2 respectively. The results of the study showed that the increase in the number of layers will lead to an increase in the visible reflectivity peak, while near of infrared region remains an anti-reflective with a high Transmission of solar rays, thus increasing solar systems efficiency.
Evgenia Gkintoni, Constantinos Halkiopoulos, Hera Antonopoulou, Nikos Petropoulos
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 92-102; https://doi.org/10.47577/technium.v3i8.4798

Abstract:
The Stroop test is a neuropsychological assessment that is worldwide recognized for its sensitivity and reliability in assessing frontal activation and executive function control. The Stroop test was conducted in this research effort using the Unity machine in a virtual test with the identical application approach and outcome measurement as in the physical test. The new visual "ustroop" test was conducted to a large enough sample of persons to allow comparisons to the initial test. Subsequently, more game scenarios in the form of a play script were added to evaluate the player's reaction to color, brand name, and words. To summarize, neuropsychological evaluation techniques can be used to promote and evaluate visual gaming, and the current project's findings can be developed upon. Though, scientific fields such as cognitive neuroscience, neuropsychological assessment tools, and gamification techniques can effectively increase learning and cognitive function through continual exercise and can be an asset in the educational process.
Fotis Rigas, Danae Doulia
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 13-21; https://doi.org/10.47577/technium.v3i8.4399

Abstract:
In the science or industrial practice of chemical processes, iron (III) is sometimes used as a catalyst in organic compound chlorinations due to its effectiveness and low cost. Thus, a fast and easy method of determination in the system is useful especially when metallic iron is used as a precursor which is readily converted into iron (III) chloride by the gaseous chlorine used in the chlorination reactor. In the latter case, the determination of the produced catalytically effective iron (III) is a prerequisite for controlling the kinetic progress of chlorination. In this work, a method for the spectrophotometric determination of iron (III) chloride in organic media after complexation with methyl ethyl ketone is investigated. The formation of a strong o-complex of iron (III) with methyl ethyl ketone allows direct determination of iron at 360 nm.Beer’s law is valid up to absorbance 2.42, where the iron (III) concentration is 20.7 mg·L-1, with molar absorptivity (e) equal to 6.532×103 L·mol-1·cm-1 and Sandell’s sensitivity 8.5×10-3 ug·cm- 2. Standing time for color development is of the order of a few seconds and stability of color measurements exceeds 12 months. The method may be used among other applications in organic compounds chlorinations catalyzed by iron. These systems are complicated due to the coexistence of various complexes. Nevertheless, the method proposed being simple, fast, and not depending on the composition of the chlorination mixture and the amount of methyl ethyl ketone added was found to be suitable.
, Judith Klamert-Schmid, Sabine Zangl, Wolfgang Neussner, Harald Lembacher, Markus Lutz
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 22-31; https://doi.org/10.47577/technium.v3i8.4476

Abstract:
Learning has become more important than ever before, as we are moving towards a digital, fast-changing society. Formal university training has changed, too, from pure “lectures” to more modern formats, including e-learning, interactive and collaborative settings. Students also find plenty of information online, and the new skill in demand is finding relevant knowledge instead of having memorized knowledge. Knowledge doubles fast and becomes outdated even faster. Being aware of one’s learning behaviors was found to be a core competence of university students eager to educate themselves. This work sets a self-assessment amongst bachelor and master students of a technical programme – International Business and Engineering – into perspective with literature findings. The authors conclude that knowing ones strengths in learning is a prerequisite of acquiring additional knowledge effectively and efficiency. Students have become more demanding towards the presentation of learning opportunities. However, it is them who have to take initiative to make most out of their learning journeys. As students progress through their studies, their awareness of collaborative and interactive learning seems to decrease, which reminds one of Socrates: “The more I know, the more I realize I know nothing.” One can speculate that his finding is due to more critical reflection by master students, or that by the time the students have entered the master’s programme, the novel learning approaches have been familiarized/assimilated and do not receive further attention, which is a hint that the art of collaborative interactive learning has been mastered.
To Thi Kim Hong, Nguyen Anh Tuan, Tran Thi Kim Dao, Nguyen Minh Duc
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 136-145; https://doi.org/10.47577/technium.v3i7.4663

Abstract:
After participating in ASEAN, and through various dialogue mechanisms, Vietnam now has become a more important and comprehensive economic member of the ASEAN Economic Community. This study focuses on analyzing the process of participating in the ASEAN Community and the roles and contributions of Vietnam in this organization to affirms Vietnam's position in the process of forming the AEC and demonstrates Vietnam's priorities for the integration process. The paper uses the primary and secondary data by using tools of desk research of different data in relativeness and by the quantitative method by using the Cobb-Doughlas function with a logarithmic form. The paper confirms the integration of Vietnam's economy into the ASEAN Economic Community (AEC) is an inevitable development after the achieved results of ASEAN's cooperation and economic connection. The AEC is an open regional economic integration model. The implementation of the AEC will bring in multi-dimensional impacts on member countries, and the extent of these impacts will depend on the level of regional and international economic integration, competitiveness, and effectiveness of policy reform in each country.
To Thi Kim Hong, Nguyen Anh Tuan, Tran Thi Kim Dao, Nguyen Minh Duc
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 136-145; https://doi.org/10.47577/technium.v3i7.4609

Abstract:
After participating in ASEAN, and through various dialogue mechanisms, Vietnam now has become a more important and comprehensive economic member of the ASEAN Economic Community. This study focuses on analyzing the process of participating in the ASEAN Community and the roles and contributions of Vietnam in this organization to affirms Vietnam's position in the process of forming the AEC and demonstrates Vietnam's priorities for the integration process. The paper uses the primary and secondary data by using tools of desk research of different data in relativeness and by the quantitative method by using the Cobb-Doughlas function with a logarithmic form. The paper confirms the integration of Vietnam's economy into the ASEAN Economic Community (AEC) is an inevitable development after the achieved results of ASEAN's cooperation and economic connection. The AEC is an open regional economic integration model. The implementation of the AEC will bring in multi-dimensional impacts on member countries, and the extent of these impacts will depend on the level of regional and international economic integration, competitiveness, and effectiveness of policy reform in each country.
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