bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of humic acid and guano on sugarcane seedlings with bud set propagation method
Authors: Mollah A , Iswoyo H , Reskiana N 
Published: October 2020

Abstract
This study aims to determine the effect of humic acid and guano obtained from swallow bird on the growth of sugarcane seedlings propagated with bud set method. The research was carried out in the form of a two-factor factorial design with a randomized block design (RBD) as an environmental design. Humic acid as the first factor consisting of 3 levels, namely: 0% (v/v) mL per polybag, 5% (v/v) mL per polybag, and 10% (v/v) mL per polybag and Swallow guano as the second factor consists of 4 levels, namely: 0 g per polybag, 150 g per polybag, 300 g per polybag and 450 g per polybag. The results showed that the treatment of humic acid application with a concentration of 10% (v/v) mL per polybag tended to give the best results on the highest leaf number parameter 9.50 strands and the application of guano fertilizer at a dose of 300 g per polybag tended to give the best results on parameters of plant height (54.55 cm). There is an interaction between the application of humic acid application dose of 10% (v/v) mL with guano fertilizer dosage of 150 g per polybag. This combination gave the best results on the number of leaves (9.50). Humic acid with a concentration of 10% (v/v) mL per polybag showed the best results on the parameters of plant height, number of leaves, number of saplings. While application of guano fertilizer at a dose of 300 g per polybag showed the best results on plant height parameters, cane diameter, number of saplings.
Fatigue life prediction on jacket leg structure subjected to axial and wave loads
Authors: Afandi Akmal , Ashury  , Alie Muhammad Zubair Muis 
Published: October 2020

Abstract
Fixed jacket platform is an offshore structure consists of many elements such as leg and braces. Both legs and braces play an important role to support the structure from internal and external loads like structure its self and wave loads. Especially for jacket leg, the deck load is distributed to all jacket leg to support deck structure. Besides, jacket leg also resists wave loads in horizontal direction. Due to the axial load caused by deck and horizontal load caused by wave, these loads act periodically on jacket leg. Therefore, the analysis of fatigue life to jacket leg should be performed for structural design. The present study focuses on fatigue life prediction on jacket leg under axial and wave load. The numerical method is conducted to analyze fatigue life on jacket leg. It is found that the fatigue life due to axial and wave loads are 185 and 108 years, respectively.
The ultimate strength characteristics on double hull oil tanker
Authors: Lukman Arlinda Verawati , Juswan  , Alie Muhammad Zubair Muis , Wulandari Amalia Ika 
Published: October 2020

Abstract
A double hull tanker is one of the specific ships where the payload is liquid. The payload is an internal load and gives pressure inside the cargo hold. Besides, the external load like wave act simultaneously on the ship during the voyage. Therefore, the ultimate strength of the ship caused by the internal and external loads must be investigated. The objective of the present study is to investigate the ultimate strength characteristic of double hull oil tankers under hogging and sagging conditions. The cross-section of the double hull tanker is modeled using the finite element method to analyze the ultimate strength. The master node is applied to both sides of the cross-section to know the characteristic of the hull girder under hogging and sagging conditions. One side of the master node is constrained, and the other one is given by rotational force. The analytical method is performed, and the result obtained by the numerical method is then compared, including their characteristic in terms of moment-curvature relationship and deformation.
The analysis of the main deck subjected to deaerator load
Authors: Roestam Muhammad , Ashury  , Alie Muhammad Zubair Muis 
Published: October 2020

Abstract
Many types of equipment placed at the deck structure of an offshore structure. The equipment is used as production facilities, exploitation, explorations, and so on. Besides, loads are also acting on the deck and make it becomes heavy and need to be analyzed. In this study, the main deck pipe subjected to the deaerator of the jacket structure is analyzed. The modeling and analysis are conducted using the finite element method. The deaerator is assumed as a static load acting on the pipe of the main deck. The result obtained by the finite element method is presented in terms of the stress-strain curve and deformation.
The effect of lamp loading variation on generator power on curved blades water wheel
Authors: Duma Gerard Antonini , Sule Luther 
Published: October 2020

Abstract
Hydropower is the energy obtained from running water. The energy that is owned by water can be utilized and used in the form of mechanical and electrical energy. Utilization of water energy is mostly done by using water wheels or water turbines that utilize the presence of a waterfall or water flow in a river. This study aims to determine the effect of lamp loading on the generator power generated by the curved blade water wheel, carried out at the Fluid Engineering Laboratory of the Department of Mechanical Engineering, Universitas Hasanuddin. Methods of data collection is done directly by measuring voltage and electric current, water wheel rotation, the water debit, the water channel head. The results showed lamp loading is very influential on the generator power, if more lights are turned on will cause the generator power become smaller. The biggest generator power is obtained on debit of 0,0163 m3/s and load of one lamp with six blades is 9,275 watt, eight blades is 8,06 watt, ten blades is 4,16 watt
Time-dependent support pressure of underground gold mine in Indonesia
Authors: Qaidahiyani N F , Kabangnga A , Purwanto  
Published: October 2020

Abstract
The mines expand slowly into deeper deposits through underground mining, and it is related to geotechnical challenges concerned with unexpected failure. The radius of the failure zone and the extent of rock mass deformation in the precinct of opening can be restrained by the implementation of internal support pressure. It is essential to primarily understand the time-dependent behavior of the rock mass. This study aimed to estimate the support pressure of underground gold mine in weak rock mass zone in Indonesia and evaluate the time-dependent support pressure. Rock mass quality Q-system is used as the basis for analysis in this study. To understand the time-dependent behaviour of the rock mass, the support pressure related to the short-term rock mass quality were evaluated. In this study of opening excavated in the weak rock mass, support pressure may progressively increase with time attributable to the creep behavior of the rock mass. The time-dependent behavior of rock mass is indispensable to be contemplated in the long-term design and continuance of underground excavation.
Analysis of mineral types of clay contained in residual soil Kulinjang Area, Enrekang, South Sulawesi Province
Authors: Arifin M F , Umar H , Agustinus  
Published: October 2020

Abstract
Kulinjang area is the main access road that connects Enrekang District with Tanah Toraja District. The road cuts through the hills on a steep slope at the west side, where there are several large landslides alongside the road that have been occurred for a while. Meanwhile, on the road surface, irregular cracks occur. This is due to the local deformation of the soil material or bedrock, where one of the influencing factors is the clay mineral content of the soil. However, not all clay minerals have negative impacts. The formation genesis of clay minerals as rock-forming minerals that can determine the engineering properties is very complex so that the type and amount of clay minerals that formed from weathered origin rock and the weathering factors will have a huge impact on the engineering properties. This study entitled Analysis of Mineral Types of Clay Contained in Residual Soil at Kulinjang Area aims to identify the characteristics of mineral types of clay in the residual soil layer, identify the morphology and thickness of the soil and analyze the stratigraphic distribution of the clay minerals. The methods used in this study are consist of taking surface sample data and subsurface sample data by manual drilling (hand auger), analyzing samples using petrography and analyzing the chemical content in the soil by XRD method (X-Ray Diffraction).
Landscape design for ecotourism development by PT. Putra Mekongga Sejahtera Regency of Kolaka, Southeast Sulawesi Province
Authors: Buana D N , Sahabuddin Z A 
Published: October 2020

Abstract
The mining industry is often found in life, such as nickel, which is a mixture of stainless steel. However, many people consider mining activities as activities that damage the environment. To change the negative image of the mining industry, it needs to be proven that mining activities can have a positive impact because it can add value to the community’s economy. PT. Putra Mekongga Sejahtera is one of the companies engaged in nickel mining. In Kolaka Regency. PT. PMS conducts nickel mining activities using the open-pit method. Impacts that will occur when mining activities are completed are landform changes and vegetation loss. Therefore, landscape design planning activities for the development of agro-ecotourism are important to minimize environmental impacts and are expected to restore the condition of the former mining area to approach its original condition so that it can achieve the desire to achieve sustainable development by making the post-mining location an ecotourism agro-area. The study was conducted using a qualitative approach; the sampling technique used was purposive sampling. The purpose of this study is 1. Analyzing the ecotourism agro landscape design strategy in the post mining area 2. Creating the concept of ecotourism agro landscape in the post mining area. 3. Analyzing the readiness of the community around the PT.MS mining area to make the former mining area as an ecotourism area through community identification. The results showed that the former mining area was in the forest area. Landscape planning to be carried out leads to agro-tourism activities by involving the community. Agro-tourism activities are chosen so that they can add to the economic value of the community from the arrival of visitors to the ecotourism and crop yields.
Extending the discourse of environmental securitization: Indonesia’s securitization of illegal, unreported, and unregulated fishing and China’s belligerence at sea
Authors: Putra B A 
Published: October 2020

Abstract
The securitization of an environmental subject has been prevalent in recent history. The urgency of mobilizing mass resources and putting the issue into a state’s political agenda has led to state actors to undergo the process of ‘Securitization’ to advance the level of threat the subject poses. This research attempts to analyse Joko Widodo’s first and second term responses to the issue of IUU (Illegal, Unreported, Unregulated) fishing in Indonesia. The paper first attempts to analyse the addition of fields that have been securitized by state actors, and elaborate on the strategic reasoning of such decisions. Secondly, this study analyses the forms of securitization of Joko Widodo’s first term presidency through its Ministry of Marine and Fisheries, by the act of bombing illegal fishing boats and extending the rhetoric of IUU from a pure environmental discourse, to one that is incorporated to the security discourse. Thirdly, this research identifies a number of securitized policies amid the second term of Joko Widodo’s presidency in the case of IUU, including political postures, mobilization of resources and Indonesian Navy, and extraordinary measures implemented, specifically in facing China in the Natuna Islands. Furthermore, the securitization of Indonesia’s IUU response can be attributed to the external geopolitical affairs that have surfaced in Asia, including tensions in the South China Sea and China’s recent acts of belligerence at sea.
Dilemma of mining: economic development and ecological risks
Authors: Sukri  , Ariana  , Ekawaty Dian , Syam Febriyanto , Amiruddin Ahmad 
Published: October 2020

AbstractThis study aims to look at the anthropocentric and ecocentric ethical debate in viewing environmental degradation that occurs. Sustainable development is expected to be a solution to environmental degradation and human interests, but ongoing development does not have a significant improvement in environmental conditions. Based on the results of research conducted on communities around the South Sulawesi mine, the conception of development to meet human needs is then faced with the reality of natural damage that has the potential to threaten the sustainability of human life. Therefore, ecocentric ethics arises with the offer of equilibrium development or zero growth because, growth and distribution of human population will certainly have an impact on the environment, so environmental degradation can only be resolved through this concept but at the same time it will bring consequences to the meaning of the sustainability of development itself which still needs growth as an important thing in meeting the increasing human needs.
Strategic reclamation policy of post-mining area based in the enviroment in North Kolaka district
Authors: Hartono Budi , Imran A M , Rijal Idrus M 
Published: October 2020

Abstract
This paper aims to investigate the absence of reclamation activities and its objectives regarding the appropriate policies of friendly environmental post-mining area that happened in mining companies, North Kolaka District. The Stakeholder analysis applies Analytical Hierarchy Process (AHP) method along with Expert Choice software, version 11, to obtain the weight of pairwise comparison matrix. Based on the elements of structural hierarchy, the results of weighting and priorities can be constructed to get the strategic policy of mine secondary reclamation. The determined priority values for each element are obtained from the calculation of responses given by stakeholders who are considered to have a stake in the management, so that the level of contribution can be distinguished. The strategic reclamation of secondary nickel mines has obtained a sustainable and friendly environmental management policy whereas the reclamation area strategy includes economic benefits for the local people. As for the natural resources toward non-renewable mining, the ecological condition happens to be the initial concern of stakeholders.
Development of high-performance safety controller for excavator
Authors: An Ka 
Published: October 2020

Abstract
This article describes the development of one high-performance safety controller for excavators that fulfils SIL2 level complied with IEC 61508 and PL d, Cat.3 level complied with EN ISO 13849. This controller has two microcontrollers, one for standard function and the other for real time diagnostic via the cross communication, it include various functionalities like digital input, digital output, analogue input and PWM output. The embedded software is divided into two parts: safety related part and non-safety related part. These two parts are totally isolated to make sure they will not affect each other. This will protect the operators and vehicles form damage because of lack of practical experience or program fleet.
Vehicle Positioning System using V2X that Combines V2V and V2I Communications
Authors: Kim Geon-Hee , Pae Dong-Sung , Ahn Woo-Jin , Ko Koung-Suk , Lim Myo-Tae , Kang Tae-Koo 
Published: October 2020

Abstract
In this paper, we present a V2X (Vehicle to Everything) vehicle positioning system environment using V2V (Vehicle to Vehicle) and V2I (Vehicle to Infrastructure) communication server. With the growth of the 5G network technology, using V2X which exchanges information, connected car recently became an important area of research in autonomous driving. However, it takes too much risk to test autonomous driving in a real-world experiment and it also have difficulties such as road infrastructure or 5G communication system. Regrading autonomous driving research, we established V2X environment in a small RC car, similar to a vehicle environment. Our proposed Vehicle Positioning System environment uses a ceiling camera, V2V, and main server, V2I, which plays the same role as GPS and 5G in the real-world. Combining the V2I and V2V from the camera of each other car using Kalman Filter we present a vehicle positioning system.
Prerequisites for the analysis of the neural networks functioning in terms of projective geometry
Authors: Vitulyova Yelizaveta S , Bakirov Akhat S , Shaltykova Dina B , Suleimenov Ibragim E 
Published: October 2020

Abstract
It is shown that during training an artificial neural network built on elements with a threshold activation function, the weighting coefficients of each neuron can be selected from a certain discrete set, the nature of which depends on the number of neurons inputs. An example of a neuron with three inputs is considered in detail. It is shown that there are only 8 non-trivial combinations of weight coefficients that specify the work of neurons of this variety: any other combination of weight coefficients that describe the work of a non-degenerate neuron with this number of inputs can be replaced by one of the above 8 combinations without changing the character of the neuron functioning in the network. A method has been developed that allows one to determine relevant combinations of weights for neurons with an arbitrary number of inputs. It is shown that the proposed approach creates the prerequisites for assessing the “information power” of neural networks based on data on the nature of the connections between the neurons that form it.
Application of ternary logic for digital signal processing
Authors: Moldakhan I , Shaltikova D B , Egemberdyeva Z M , Suleimenov I E 
Published: October 2020

Abstract
The article shown that digital processing of slowly changing signals based on ternary logic has significant advantages compared to processing based on binary logic. It is shown that for slowly changing signals, digital processing can be performed on the basis of dividing analysed signal into frequency bands. In particular, information on derivatives of a slowly varying signal which spectrum lies in the frequency band from 0 to ω_0, can be restored basing on the analysis of its component lying in the frequency band from ω_0/3, to ω_0‥
Improving Aviation Incidents using Association Rule Mining Algorithm and Time Series Analysis
Authors: Abesamis Pierre Pauline R. , Bulos Remedios de Dios , Ching Michelle 
Published: October 2020

Abstract
Advance technology helps to forecast and show the different hazards associated in the world of transportation systems. Despite the rapid advancement of technology, there are still huge number of aviation accidents and incidents happened. This paper concerns application of various data analytics algorithm to derive a time series forecasting method and frequent accident and incident pattern specifically for Philippine aviation setting for predicting conditions that would increase the likelihood of aviation accidents and incidents involving fatal and non-fatal activities. Data Analytics algorithms are Association Rule Mining using FP-Growth algorithms and Time Series Forecasting methods using Linear Regression, Gaussian Processes, Multilayer Perceptron, and SMOreg are applied to datasets derived from original data obtained from Department of Transportation (DOTr) with its attached agency, Civil Aviation Authority of the Philippines (CAAP) and both incident and accident records stored in “Philippine Aviation Incident Reporting System (PAIRS)” from 2008-2017. The aviation accident data is based on flight information such as aircraft attributes, aviation accident factors, type of occurrences, geographical location, weather conditions and phases of operation. The results lead to prescriptive analytics for development of business rules and help identify pattern that can define aircraft accidents/incidents occurrences. The ability to predict accidents has the main objective of saving lives and will be impactful in cost saving in terms of any aircraft damages. The result created important points in improving the aviation operation and assists in better decision-making to help create policy and future improvement for aviation-safety in the country.
Metabolic Syndrome and Cognitive Function in Midlife
Authors: Foret Janelle T , Oleson Stephanie , Hickson Brennan , Valek Stephanie , Tanaka Hirofumi , Haley Andreana P 
Published: October 2020

Abstract

Objective
Metabolic syndrome (MetS) is a cluster of cardiovascular risk factors associated with cognitive decline. We investigated the relationship between MetS and cognition in middle-aged adults. We hypothesized that higher numbers of MetS components will relate to poorer performance on executive function (EF) tasks as frontal lobe regions critical to EF are particularly vulnerable to cardiovascular disease.

Methods
197 adults (ages 40–60) participated. MetS was evaluated using established criteria. Composite scores for cognitive domains were computed as follows: Global cognitive function (subtests from the Wechsler Abbreviated Scale of Intelligence, 2nd Edition), EF (Stroop Color Word, Digit Span Backward, and Trails A and B), and memory (California Verbal Learning Test, 2 Edition).

Results
Higher number of MetS components was related to weaker EF—F(4, 191) = 3.94, p = .004, MetS components ß = −.14, p = .044. A similar relationship was detected for tests of memory—F(4, 192) = 7.86, p &lt; .001, MetS components ß = −.15, p = .032. Diagnosis of MetS was not significantly associated with EF domain score (ß = −.05, p = .506) but was significantly associated with memory scores—F(4, 189) = 8.81, p &lt; .001, MetS diagnosis ß = −.19, p = .006.

Conclusions
Our findings support prior research linking MetS components at midlife to executive dysfunction and demonstrate that MetS, and its components are also associated with poorer memory function. This suggests that cognitive vulnerability can be detected at midlife. Interventions for MetS at midlife could alter cognitive outcomes.
Stability-Indicating Method Development and Validation for Busulfan Drug Substance by Gas Chromatography-Flame Ionization Detector
Authors: Khan Ashraf , Winter Greg , Tan Shane 
Published: October 2020

Abstract
A new, simple and stability-indicating gas chromatography-flame ionization detection (GC-FID) method was developed and validated for the quantitative determination of busulfan and its organic impurities (OI) in drug substance without derivatization. The chromatographic attributes were achieved on a fused silica capillary column (0.53 mm × 30 m, 1.0 μm, USP Phase G42), using hydrogen as a carrier gas with a split ratio of 1:1. Forced degradation studies were conducted to establish the stability-indicating capability and method specificity that showed the stressed busulfan peak was free from any co-elution. Robustness study demonstrated the chromatograms remained mostly unaffected under deliberate, but small variations of chromatographic parameters, establishing the reliability of the method during routine usage. The method was shown to be reliable, sensitive, specific, linear, accurate, precise and rugged in the 1,4-butanediol concentration range of 1–20 μg/mL. The method, intended for compendial uses, is suitable for quantitative analysis of busulfan and its organic impurities in drug substances.