bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Choice Shrimp Technology based on Business Process, Productivity, Financial and Risk
Authors: Tasha Aulia Akbar Wydzka , Chumaidiyah Endang , Rendra Meldi 
Published: May 2020

Abstract
The application of new technology in shrimp ponds, autofeeder, has many advantages, but carries a greater risk compared to conventional shrimp ponds, therefore a more structured analysis is needed to decide the best shrimp pond technology. The comparison is seen from business processes, productivity, financial and risk. The results of business process efficiency level with conventional worth 67.19% while for the autofeeder level worth 88.71%. The productivity results show FCR 1.34 (conventional) and 1.34 (autofeeder); SR 79% (conventional) and 90% (autofeeder); and productivity of 13 tons / ha (conventional) and 25 tons / ha (autofeeder). The financial shows an NPV of Rp 1, 515, 178.503 (conventional) and Rp 7, 721, 596, 229 (autofeeder); IRR 38.24% (conventional) and 51.23% (autofeeder); payback period 2.68 years (conventional) and 2.17 years (autofeeder); BCR 1, 696 (conventional) and 2, 065 (autofeeder). Furthermore, for the calculation of risk consisting of production risk and revenue risk with a total risk of 6% for conventional and 31% for autofeeder. In the results of technology selection with an assessment of the 15 criteria above, the results obtained 4 criteria are better for conventional technology and 11 criteria are better for autofeeder technology. So between the two technologies, the selected shrimp pond system is the Autofeeder technology.
Warehouse Layout Designing of Cable Manufacturing Company using Dedicated Storage and Simulation Promodel
Authors: Septiani W , Divia G A , Adisuwiryo S 
Published: May 2020

Abstract
PT. XYZ is a cable manufacturing company that has several types of cables produced. Goods produced are stored in finished goods warehouses with two types of packaging, namely haspel and roll. Laying of goods in open goods warehouses in the form of randomly arranged haspels is mixed between each type of haspel. The purpose of this study was to evaluate the layout of finished goods warehouses for haspel types so that they can be grouped and minimize displacement time. This study uses a simulation design that is implementing a real system using a ProModel simulation and provides improved layout evaluation with a dedicated storage method approach, i.e. goods or materials placed in a fixed location. The first step is to collect and identify the real system and then implement using a ProModel simulation resulting in a total displacement time of 140.27 hours. Improvements to the layout of the finished goods warehouse using a dedicated storage method to group haspels. From the calculation results, there are two scenarios, the first is the application of haspel grouping from the calculation of a dedicated method with displacement time of 139.21 hours and the second scenario adds material handling from the first scenario, the displacement time is 128.08 hours. The results of scenario two resulted in a decrease in displacement time of 8.69% by grouping the haspel and adding material handling.
EPR Approach for Better Waste Management System for Mobile Phone Design in Indonesia
Authors: Junianto A B , Sugandha D C 
Published: May 2020

Abstract
The influence of toxic electronic waste or electronic goods will occur if it is disposed of carelessly or managed in the wrong way. Open dumping and crude waste handling in landfill sites in Indonesia creating even more miserable situation (Damanhuri, 2010). Mobile phone or cell phone is considered as one of the fastest growing device in global society. More than 60% of global population have mobile phone, end even an individual may have more than one device. EPR could be taken as strategy in order to find better e-waste management of renewable and non-renewable resources specifically for Indonesia situation. EPR related action of WEEE in Indonesia is still uncertain especially for mobile phone product. It is observed that many used mobile phones are still disposed improperly by unauthorized party and may danger the people and environment. This study will observe how the mobile phone waste is handled by unorganized organization, how EPR is taken into account in mobile phone waste management system and what kind of solution that is based on EPR that could enhance environmentally save property of mobile phone design in the future, especially for Indonesia situation. It is important by considering Indonesian situation; the producers need to employ new design strategy not merely in order to meet regulation compliances but should extend the responsibility for better waste management friendly product design that is more suitable with Indonesia situation with minimum waste management infrastructure by involving End-of-Life Design Solution; better collection, separation, recyclability, reuse and ease of manufacture
Scheduling and Allocation of Airport Service Manpower by considering Time and Work Constraints using M-MAPTWTC Method: a case study
Authors: Moengin P , Darussalam F 
Published: May 2020

Abstract
Airport Service workforce scheduling and allocation is important because the handling of ground handling jobs is also increasing. The system and allocation of workforce scheduling in the company that is currently being carried out is based on trials only (trial and error), this causes frequent shortages or excess labor. This can happen because in scheduling and allocating workforce has not considered the time span between the preparation time and flight time, as well as the work team constraints. To overcome the weaknesses of the system of scheduling and allocation of labor previously in this thesis, scheduling and allocation of labor is done by considering the time span between preparation time and flight time. The method used is using the m-MAPTWTC method. The results of a case study in a company using the m-MAPTWTC method show that the number of jobs done in the period 04.00 - 12.00 WIB as many as 80 flights can be done by 20 teams whereas previously the same number of jobs required 24 teams. With the m-MAPTWTC method it is also obtained the team allocation and work order for each job by each team.
Investigating Supply Chain issues in the Food Processing Industry
Authors: Khan S Z , Ashfaq MA , Awan M U , URehman H , Kamal S A , Hoa N T X , Shafiq M 
Published: May 2020

Abstract
With the recent increase in the complexity of food industries, numerous issues including rapid changes in taste and demand for food supplies are on the rise, particularly in developing countries. Aim: This research study was aimed at investigating supply chain management issues in food processing industries and influence of these factors on business performances. Methods: Research data from respondents was collected using online social platforms and Statistical Package for Social Sciences (SPSS) was employed to analyses the data. Results: Research findings indicated that factors including human resource management, technology, facility issues, and customer relations negatively influence business performance. Conclusion: Findings also reflect that human resource management issues represent a significant driver for improving performance of the food industries. This research study offers insight regarding barriers and drivers influencing the operations of food processing industries and what measures should be taken accordingly.
Comparison Analysis of Tajuk’s Onion Production Efficiency (Allium Ascalonicum) in Rejoso Sub-District – Nganjuk
Authors: Ulansari D R , Pujawan I N 
Published: May 2020

Abstract
Nganjuk is one of production area for Tajuk’s onion. This research aimed to compare the results of technical and allocation efficiency from Tajuk’s onion production in rejoso sub district, whether there are any differences or not. In addition, it will be used by the researcher to determine the factors which cause inefficiency and find sorts of way to fix the problems. The method used in this study was DEA and would be continued by conducting comparative test. The results in this study showed that there was difference between technical effeciency and allocation effeciency of Tajuk’s onion production in Rejoso Sub-District on June-September, 2019, showed that W value on Mann Whitney test met 67, 94 percent, contained sig value 0, 000. The three main factors which caused technical inefficiency were pesticide, water flow, and the land area. Meanwhile, allocative inefficiency is caused by certain main factors; pesticide, seeds, land area, and working hour. The pesticide usage can be dealt by conducting studies and comparative study among farmers, remesured the land area of sewer and flowerpot along with plants gap; making new irrigation; using stored up seeds only before the harvest time, and allocating the numbers of labors that arranged by land capacity.
Assessment of Safety Culture Maturity Level in Production Area of a Steel Manufacturer
Authors: Sudiarno A , Sudarni A A C 
Published: May 2020

Abstract
Safety culture is widely known to have the ability to encapsulate all factors including perception, psychology, and attitude. This ability serves as an important role for organizations in occupational safety and health. Further, this ability is used as an effort to reduce the risk of accidents. One of the efforts made is to measure the level of maturity of the safety culture in the steel manufacturer production area by involving the variables of safety culture, namely commitment, leadership, responsibility, competence, engagement & involvement, information & communication, risk, and organizational learning. This study aims to measure the level of safety culture maturity in the activities production area of steel manufacturers. Data collection was carried out by distributing questionnaires with a purposive sample of 107 workers. Two expert judgments are involved as determinants of the safety culture variable weights using the AHP (Analytical Hierarchy Process) method. The results showed that the level of safety culture maturity in the production area of steel manufacturer was 3, 64, which falls in the proactive category. The priority for improvement of safety culture variables starts from the leadership to the information & communication.
Influence of moisture dependent physical properties of fluted pumpkin vital to development it’s processing equipments
Authors: Shiru J J , Gana I M 
Published: May 2020

Abstract
Knowledge of physical and mechanical properties of seeds is an important factor for designing agricultural machines and equipment. A fluted pumpkin is a very important vegetable crop as well known for its high nutritional, medicinal and economic values, but the data on its physical and mechanical properties is still lacking. The aim of this study is to determine the effect of moisture content on the physical (basic dimensions, porosity, bulk and true densities, coefficient of friction, repose angle and sphericity) and mechanical properties of fluted pumpkin seed. These properties were evaluated as a function of moisture content at 45, 50, 55 and 60%. The results revealed that length, width and thickness increased with increasing moisture content. Similarly, an average mass of the seed, volume, surface area, sphericity, angle of repose all increased with increasing moisture content. Bulk density decreased as the moisture content increases. The parameters obtained from this study could be used as a reference data for the design of fluted pumpkin seed handling and processing equipment.
Analysing the cause of idle time in loading and unloading operation at Indonesian international port container terminal: Port of Tanjung Priok case study
Authors: Suprata F , Natalia C , Sugioko A 
Published: May 2020

Abstract
Prior study shows that major Indonesian ports still need some improvements to achieve a better logistics performance. This study aims to analyze which variables can influence the present of idle time during loading and unloading process at Container Terminal Operation 2 Tanjung Priok Port Jakarta. The Tanjung Priok Port is chosen since the port is designed as the hub port in the national sea transport system of the country where it handles more than 50% Indonesia’s trans-shipment cargo traffic. This study uses service blueprint, multiple regression analysis, and one-way anova method. The findings show that at the existing Tanjung Priok Port Container Terminal has 17 (seventeen) failure spots, which are categorized into 6 (six) variables namely head truck, computer system, weather, stevedoring worker, equipment failure, and operator activities, that cause the idle time at the port service. Nevertheless, based on the multiple regression analysis, only 5 (five) variables have a significant influence on the cause of idle time excluding weather variable. Finally, with one-way anova test it is found that operator activities at the gate-in process is the most significant influence to the idle-time at the port service.
Measurement of Physiological and Psychological Workloads of Mechanical Department Operator PT. XYZ
Authors: Cahyadi B , Maryanti A S , Timang G A 
Published: May 2020

Abstract
PT. XYZ is an electrical machinery repair services company. The amount and density of operator activity can affect worker fatigue. This research conducted to calculate the level of physiological and psychological workloads and ideals rest periods for operators in the Mechanical Department of PT. XYZ. The method to calculate physiological workload is direct measurement by measuring heartbeat, whereas the method to calculate psychological workload is NASA-TLX Method. The results show that the most severe physiological workload experienced by Mr. Nur who is a medium-sized lathe operator with a value of energy consumption of 8.497 Kcal/minute before a break and 7.602 Kcal/minute after a break, the ideal rest time for Mr. Nur is 112 minutes with work duration from 07.00-12.00 WIB and 66 minutes with work duration from 13.00-16.00 WIB, while Mr. Supardi and Mr. Didik requires a rest time of 103 minutes and 38 minutes with work duration from 07.00-12.00 WIB and the level of psychological workload for the 12 operators are high and very high. Therefore the company can minimize the level of physiological and psychological workload by calculating the workload of the operator in a balanced manner.
Interaction of exogenous refractory nanoparticles of Al2O3 and MgAl2O4 with nonferrous metal impurities in iron melts
Authors: Anuchkin S N 
Published: May 2020

Abstract
The exogenous refractory nanoparticles is proposed for refining iron-based melts from nonferrous metal impurities. Investigated the heterophase interaction of Al2O3 and MgAl2O4 nanoparticles with Sb/Sn/Cu and showed that the degree of removal of nonferrous metal impurities was in the Fe-Sb system up to 30 rel.%, in the Fe-Sn system up to 29 rel. % and in the Fe-Cu system up to 23 rel. %. The existence of refractory nanoparticles in a liquid metal was proved by studying the structural properties of the melt. In the melts, after the introduction of the nanoparticles, inversion of the temperature coefficient of surface tension is observed, as well as multidirectional change depending on the nature of the nanoparticles and the holding time during interfacial interaction. Decompression and compression of the melts after the introduction of nanoparticles and the multidirectional nature of the dependences of properties indicate a possible change in the cluster structure of liquid metal.
High-temperature physical properties of the electrodes based on MAX-phase Ti-Al-C produced by SHS-extrusion method
Authors: Averichev O A , Stolin A M 
Published: May 2020

Abstract
Physical properties of the Ti-Al-C compact rods with the content of the MAX phase have been studied. The rods were produced by energy-efficient SHS-extrusion method. It has been found that the oxidation mechanism is similar to nickel heat-resistant alloys, herewith the oxidation rate does not exceed 1 g/m2• h at 900 °C. The dependences of the corrosion resistance on stoichiometric parameters of green mixtures are reported. The electrical resistivity of the rods does not exceed 5-6 μOm * cm at room temperature with a slight increase in value to 18 μOhm*cm at 900 °C. These results can be useful for the potential applications of the rod as the high-temperature electrodes.
TiB / 30 wt.% Ti layered composite material obtained by free SHS compression on a Ti6Al4V titanium alloy
Authors: Bazhin P M , Chizhikov A P , Konstantinov A S , Prokopets A D , Kostitsyna E V , Bolotskaya A V , Stolin A M , Yu Khomenko N 
Published: May 2020

Abstract
In this work, a layered composite material based on TiB/30 wt.% Ti on a Ti6Al4V titanium alloy was obtained by free SHS compression. Powders of titanium and amorphous black boron were used as initial components. The structural features, phase composition, porosity and distribution of microhardness along the height of the layered material were studied. It was shown that, as a result of synthesis and subsequent high-temperature deformation, the following phases were formed in the layered composite material: TiB, TiB2, Ti0, 76N. It was found that at a compression pressure of 50 MPa a layered composite material with a porosity of up to 1-2% is formed. It was found that the delay time before applying pressure affects the size of the diffusion zone in the range of 10-50 microns. Due to the formation of hardening phases in the composite material on Ti6Al4V, the microhardness of its surface increased from 2.4 to 11 GPa.
Effect of tantalum on short-term creep of a 12%Cr-3%Co-0.07%Ta martensitic steel for steam blades
Authors: Fedoseeva A E , Nikitin I S , Fedoseev A E , Tkachev E S , Kaibyshev R O 
Published: May 2020

Abstract
9-12%Cr martensitic steels are prospective materials for elements of boilers, tubes, pipes, heaters and steam blades for fossil power plants, which are able to work at ultra-supercritical parameters of steam. Decreasing N content and increasing B content together with increasing Cr content required the optimization of ferrite-stabilizing and austenite-stabilizing elements to avoid the formation of δ-ferrite at high temperatures. Addition of 3-4%Co, 0.01%B, 0.80%Cu and 0.07%Ta as austenite-stabilizing elements can compensate increasing Cr content up to 12% at decreasing N content to 0.003% and provides the δ-ferrite in the amount less than 10%. Two Co-containing 12%Cr steels were developed and investigated. The main difference between these steels is Ta addition; one of the 12%Cr steel studied contains 0.07%Ta, other 12%Cr steel is Ta-free one. Creep tests at 650°C and the applied stresses ranging 180-80 MPa with a step of 20 MPa for both Co-containing 12%Cr steels were carried out. Addition of Ta in the Co-containing 12%Cr steel provide the increment in the creep time to rupture at both high and low applied stresses. This increment in the creep properties due to Ta addition was explained by decrease in coarsening rate of Ta-rich MX carbonitrides during creep at 650°C.
Gold nanorods and their nanocomposites based on polyurethane foam for determination of catecholamines in biological fluids
Authors: Gorbunova M V , Apyari V V , Garshev A V , Volkov P A , Tolmacheva V V , Dmitrienko S G 
Published: May 2020

Abstract
Capability of gold nanorods and their nanocomposites based on polyurethane foam as spectrophotometric reagents for catecholamines determination was examined. Comparison of the analytical properties of the systems based on interaction of nanoparticles of different morphology with various reagents in the presence of catecholamines was carried out, gold nanorods-based system is characterized by the highest sensitivity. Applicability of gold nanorods and their nanocomposites for catecholamines determination in biological fluids (urine, serum) was proved by HPLC analysis. Catecholamines preconcentration by dynamic sorption on hypercrosslinked polystyrene and further elution with 6M acetic acid could serve to improve the sensitivity of the analysis.
Application of optical methods in tests of new materials with gradient structure
Authors: Kamantsev I S , Drukarenko N A , Kuznetsov A V , Stepanov S I , Chesnokov M A 
Published: May 2020

Abstract
The main idea of the article is to demonstrate the possibility of applying the laser dynamic speckle interferometry technique to control the processes of fatigue failure of specimens with a gradient structure. A distinctive feature of the described technique is the possibility of practical application on high-frequency machines as an experimental non-contact method for recording surface changes in the studying objects with a complex structure. Besides, the proposed technique can be used as an indicator characterizing irreversible processes during fatigue failure and for analyzing the fatigue crack growth kinetics.
Characterization of spherical stainless steel powders prepared by electric arc spraying process
Authors: Kirsankin A A , Kalaida T A , Kaplan M A , Smirnov M A , Yu Ivannikov A , Sevostyanov M A 
Published: May 2020

Abstract
Spherical powders were obtained by electric arc spraying of stainless-steel wire. The effect of the electrical power during the arc spraying process was investigated. The fractional composition of the obtained powder was determined by laser diffractometry. Scanning Auger microprobe was used to study surface morphology of the powder particles. The obtained spherical stainless-steel powders will be used to fabricate products by additive manufacturing methods.
The ratio of refractive index and molecular weight of copolymers of n-butyl acrylate and styrene obtained by the method of RAFT-radical polymerization
Authors: Vaganov E V , Komendant R I , Perepelitsina E O , Grachev V P , Kurochkin S A 
Published: May 2020

Abstract
The kinetic and molecular weight characteristics of the copolymers of n-butyl acrylate and styrene (95: 5 wt.%) obtained by the method of radical polymerization with reversible chain transfer were studied. The dependence of the refractive index on the molecular weight of the copolymers of n-butyl acrylate and styrene is shown.
Dicationic disiloxane liquids
Authors: Krasovskiy V G , Gorbatsrvich O B , Glukhov L M , Chernikova E A 
Published: May 2020

Abstract
Bis(trifluoromethylsulfonyl)imide dicationic ionic liquids containing disiloxane linkers between imidazole cations were synthesized. Their thermal stabilities, melting points, viscosities, and volatilities in vacuo were measured. The possibility of tuning the properties of dicationic ILs by introducing substituents of different nature into the cation structure is shown.
Changes in electrochemical properties of a heavy tungsten alloy during its processing under the influence of DC current in ammonia-alkali solutions
Authors: Kuznetsova O G , Levin A M , Sevostyanov M A , Tsybin O I , Bolshikh A O 
Published: May 2020

Abstract
The method of linear voltammetry in the potentiodynamic mode was used to study the change in the anode behavior of a heavy tungsten VNZh alloy (in wt.%: 78.8 W; 15.2 Ni; 6.0 Fe), as well as the phase composition and morphology of its surface during its electrochemical dissolution under the influence of DC current. It was determined, that the phase composition of VNZh alloy surface is a solid solution of iron-nickel after tungsten dissolution from the surface of the alloy. It has been established, that in ammonia-alkali electrolytes the process of tungsten passing into solution does not stop after dissolution of the metal from the alloy surface, but continues both due to diffusion of the metal from the depth of the sample and the pits formation in the processed alloy.