bluuebunny/crossref_metadata_2025_split huggingface dataset:
Desain Mekanisme Ballscrew untuk Retrofit Drilling axis Mesin Ficep H-Beam Drilling LFB-200-49
Authors: Turnip Kimar , Atmadi Priyono , Novianto Andreas Agung 
Published: September 2021

Proses retrofit adalah proses penggantian atau penambahan suatu komponen ke mesin dengan tujuan untuk memberikan nilai tambah pada performa mesin tersebut. Pada penelitian ini, proses retrofit diaplikasikan pada penggantian penggerak drilling axis mesin Ficep H-beam Drilling LFB-200-49. Proses retrofit ini membutuhkan komponen motor servo sebagai energi penggerak dan ballscrew sebagai pengubah rotasi motor menjadi gerakan linear twist drill saat melakukan proses pengeboran untuk menggantikan sistem hidrolik yang digunakan sebelumnya. Pada perancangan retrofit yang dilakukan terhadap mesin Ficep H-beam Drilling ini, gaya dorong yang dihasilkan sistem hidrolik digunakan sebagai acuan untuk mengetahui kebutuhan dynamic load yang harus ditransmisikan oleh ballscrew sedangkan thrust axial force dari mata bor digunakan sebagai acuan dalam menentukan daya motor servo. Dalam merancang penggantian sistem hidrolik ke sistem motor servo ini, komponen yang disarankan adalah ballscrew dengan pitch 10 mm dan diameter poros ballscrew 38 mm yang memenuhi syarat transmisi dynamic load 50.210,56 N dan motor servo dengan daya 8,12 kW dengan penambahan gear ratio 3 : 1.
The retrofit process is the process of replacing or adding a component to a machine with the aim of adding value to the machine's performance. In this study, the retrofit process was applied to the replacement of the Ficep H-beam Drilling LFB-200-49 drilling machine axis. This retrofitting process requires a servo motor component as driving energy and a ballscrew to convert the motor rotation into a linear twist drill motion during the drilling process to replace the hydraulic system used previously. In the retrofit design carried out on the Ficep H-beam Drilling machine, the thrust generated by the hydraulic system is used as a reference to determine the dynamic load requirements that must be transmitted by the ballscrew while the thrust axial force from the drill bit is used as a reference in determining the power of the servo motor. In designing the replacement of the hydraulic system to this servo motor system, the recommended components are a ballscrew with a pitch of 10 mm and a ballscrew shaft diameter of 38 mm which meets the requirements for dynamic load transmission of 50,210.56 N and a servo motor with a power of 8.12 kW with the addition of a gear ratio of 3. : 1.
Utilization of Marble Wastes in Clay Bricks: A Step towards Lightweight Energy Efficient Construction Materials
Authors: Khan, Zeeshan , Gul Akhtar , Shah Syed Azmat Ali , Qazi Samiullah , Wahab Nauman , Badshah Eid , Naqash Tayyab , Shahzada Khan 
Published: September 2021

Marble dust is one of the hazardous byproducts of marble-processing factories and requires planned disposal. Its beneficial use as a construction material will add to the sustainability, and most importantly, might overcome the burden of marble waste disposal. However, the use of marble dust in concrete has a negative impact. Therefore, this research examines various properties related to the utilization of such material in ceramic clay, and therefore its effects on the use of clay bricks are investigated. The research activity covers the categorization of marble dust powder from three different sources: Ziarat in Mohmand Agency, Buneer, and Mullagori (Pakistan). Its utilization in different proportions preparation of bricks is also addressed. Through the partial replacement of clay with marble dust from 0 to 30% by weight with amplification of 5%, seven mix designs are examined. The test result includes Bulk density, water absorption, porosity, thermal insulation, and strength. The partial replacement of clay with marble dust reduced its weight, strength and increased its porosity, water absorption, and thermal insulation. Furthermore, the utilization of marble powder in bricks minimizes soil erosion and reduces pollution to the environment. Doi: 10.28991/cej-2021-03091738 Full Text: PDF
The Impact of HDPE Plastic Seeds on the Performance of Asphalt Mixtures
Authors: Nawir Daud , Mansur Achmad Zultan 
Published: September 2021

Plastic waste processing is a problem that almost several countries in the Asian region are unable to overcome. One of the latest innovations carried out in the field of road pavement construction is mixing HDPE type plastic waste that has been processed into plastic seeds into the asphalt concrete mixture. Previous research has shown that HDPE plastic waste may be reused to improve the physical properties of temperature-sensitive asphalt and improve the stability of asphalt concrete. This study was conducted to determine the effect of using HDPE plastic ore as a mixed additive on the Asphalt Concrete-Wearing Course (AC-WC) using Marshall parameters. Marshall Parameters used are stability, flow, VIM, VMA, VFA, and MQ. The study was conducted in a laboratory by testing 42 samples with different levels of HDPE plastic seeds, mixed using wet methods to determine Marshall Characteristics. Manufacture of test objects using asphalt type, which has a penetration rate of 60/70. The initial research results showed that the optimal asphalt content (OAC) is 5.5%, with the percentage content of HDPE plastic seeds around 0, 1, 2, 3, 4, 5, 6, and 7% compared to asphalt weight. The results showed that the effect of HDPE plastic seed content on the AC-WC mixture increased the value of Marshall Characteristics and met all the requirements of SNI 06-2489-1991. This finding shows that HDPE plastic seeds deserve to be an alternative material for road pavements. Doi: 10.28991/cej-2021-03091744 Full Text: PDF
Soil Improvement Using Waste Marble Dust for Sustainable Development
Authors: Waheed Abdul , Arshid Muhammad Usman , Khalid Raja Abubakar , Gardezi Syed Shujaa Safdar 
Published: September 2021

The soils which show very high shear strength in a dry state but rapidly lose their strength on wetting are known as collapsible soils. Such rapid and massive loss of strength produces severe distress leading to extensive cracking and differential settlements, instability of building foundations, and even collapse of structures built on these soils. Waste marble dust is an industrial byproduct and is being produced in large quantities globally poses an environmental hazard. Therefore, it is of the utmost need to look for some sustainable solution for its disposal. The present study focused on the mitigation of the collapse potential of CL-ML soil through a physio-chemical process. The soil is sensitive to wetting, warranting its stabilization. Waste marble dust (WMD) in varying percentages was used as an admixture. The study's optimization process showed that geotechnical parameters of collapsible soil improved substantially by adding waste marble dust. Plasticity was reduced while Unconfined Compressive Strength (UCS) significantly increased while swelling was reduced to an acceptable limit. The California Bearing Ratio (CBR) also exhibits considerable improvement. This study appraises the safe disposal of hazardous waste safely and turns these into suitable material for engineering purposes. Doi: 10.28991/cej-2021-03091746 Full Text: PDF
Non-stationary Investigation of Extreme Rainfall
Authors: Oruc Sertac 
Published: September 2021

Natural or human-induced variability emerged from investigation of the traditional stationary assumption regarding extreme precipitation analyses. The frequency of extreme rainfall occurrence is expected to increase in the future and neglecting these changes will result in the underestimation of extreme events. However, applications of extremes accept the stationarity that assumes no change over time. Thus, non-stationarity of extreme precipitation of 5, 10, 15, and 30 minutes and 1-, 3-, 6-, and 24-hour data of 17 station in the Black Sea region were investigated in this study. Using one stationary and three non-stationary models for every station and storm duration, 136 stationary and 408 non-stationary models were constructed and compared. The results are presented as non-stationarity impact maps across the Black Sea Region to visualize the results, providing information about the spatial variability and the magnitude of impact as a percentage difference. Results revealed that nonstationary (NST) models outperformed the stationary model for almost all precipitation series at the 17 stations. The model in which time dependent location and scale parameter used (Model 1), performed better among the three different time variant non-stationary models (Model 1 as time variant location and scale parameters, Model 2 as time variant location parameter, and Model 3 as time variant scale parameter). Furthermore, non-stationary impacts exhibited site-specific behavior: Higher magnitudes of non-stationary impacts were observed for the eastern Black Sea region and the coastal line. Moreover, the non-stationary impacts were more explicit for the sub-hourly data, such as 5 minutes or 15 minutes, which can be one of the reasons for severe and frequent flooding events across the region. The results of this study indicate the importance of the selected covariate and the inclusion of it for the reliability of the model development. Spatial and temporal distribution of the nonstationary impacts and their magnitude also urges to further investigation of the impact on precipitation regime, intensification, severity. Doi: 10.28991/cej-2021-03091748 Full Text: PDF
ANALISIS LAJU ALIRAN MASSA FLUIDA DINGIN TERHADAP EFEKTIVITAS PENUKAR KALOR SHELL AND TUBE DESTILLASI MINYAK ATSIRI CENGKEH (Syzygium aromaticum)
Authors: Said Rengga , Titahelu Nicolas , Ufie Rikhard S. 
Published: September 2021

Shell and tube type heat exchanger is a component of clove essential oil distillation apparatus using hot steam as hot fluid and water as a cold fluid, each flowing in opposite directions. The distillation system in the field still uses a condenser or straight pipe heat exchanger, where the temperature of the hot fluid that comes out is still considered high enough so that the indication of effectiveness is not optimal. To optimize the effectiveness, a shell and tube heat exchanger is designed with a numerical method based on Fluent CFD using a hexagonal pipe geometry in tube layouts of 30°, 60°, 45°, and 90° inline and staggered arrangement and counter flow type. This study varied the cold mass flow rate (ṁc) = 0.052; 0.059; 0.083; 0.1; 0.12 Kg/s, while the mass flow rate of the hot fluid is constant. The simulation results obtained that the maximum effectiveness occurred at a mass flow rate of 0.052 kg/s of 5.45% staggered layout and the minimum occurred at a mass flow rate of 0.12 kg/s of 4.01% on an inline layout. The results of this research are also expected to help the community which can be used for various essential oils.
Permanent, seasonal, and episodic seismic sources around Vatnajökull, Iceland from the analysis of correlograms
Authors: Nowé Sylvain , Lecocq Thomas , Caudron Corentin , Jónsdóttir Kristín , Pattyn Frank 
Published: September 2021

In this study, we locate and characterise the main seismic noise sources in the region of the Vatnajökull icecap (Iceland). Vatnajökull is the largest Icelandic icecap, covering several active volcanoes. The seismic context is very complex, with glacial and volcanic events occurring simultaneously and the classification between the two can become cumbersome. Using seismic interferometry on continuous seismic data (2011–2019), we calculate the propagation velocities and locate the main seismic sources by using hyperbolicas geometry and a grid-search method. We identify and characterise permanent oceanic sources, seasonal glacial-related sources, and episodic volcanic sources. These results give a better understanding of the background seismic noise sources in this region and could allow the identification of seismic sources associated with potentially threatening events in real-time.
Baudelaire, traductor
Authors: Moreno Jimeno Manuel 
Published: September 2021

"El poeta es el que dice las cosas esenciales"
Esta frase de Browning, de Elizabeth, sentencia la obra del poeta y la función de la poesía. Eterno rebelde, portafuego, visionario, el poeta desgarra los velos siniestros, fuerza los cercos de acero, viola la noche. Todo el dolor del mundo, y también los goces supremos, se exhiben entonces allí, se hacen visibles, adquieren presencia de resplandor en su obra. Así procura, en un acto de liberación perenne, la edificación del fabuloso destino del hombre.
En la forja de este supremo destino humano ha trabajado CHARLES BAUDELAIRE, con una lucidez y una profundidad tan decisivas que toda luz esencial que se abre en el arte y en la poesía del presente, parte de su hontanar prodigioso.
Methodology for Optimal Placement of Containers in Trains in Case of Cargo Operations Along the Route
Authors: Kochneva D. I. , Siziy S. V. , Chang Hao 
Published: September 2021

A new approach to organisation of container block trains is considered based on the principles of passenger traffic. The technology assumes container train’s traffic subject to the timetable with sale of cargo space in the train. The train is made up at the departure station and follows the established route with stops at intermediate container terminals or stations, where a container for which this station is designated as destination is removed and a new container is placed on the vacated place to be delivered to subsequent points of the route.The objective of this study is to develop a methodology for optimal placement of containers in a block train intended for en route cargo handling operations. The technique involves an iterative search for such an order of placement of packages so that containers assigned to each intermediate point are as close to each other as possible. The technique is an authors’ algorithm based on combinatorial optimisation methods.The implementation of the proposed algorithm makes it possible to reduce the excessive mileage of handlers and loaders at intermediate points and, consequently, to increase speed of cargo operations when rearranging containers, as well as to reduce operating costs of using the loading facilities of the container terminal.The proposed mathematical algorithm as compared to exhaustive search allows significantly reducing the number of iterations in search for a solution and can be implemented as software.
Concept of Digital Platform at Marshalling Yards
Authors: Shabelnikov A. N. , Olgeizer I. A. , Sukhanov A. V. 
Published: September 2021

Implementation of the Industry 4.0 concept is considered in the context of automation of railway transport. The analysis refers to prerequisites for creation of a universal digital platform integrating automation systems at a marshalling yard.The example of JSC Russian Railways has contributed to describe the main goals of Digital Station concept, aimed at fusion of data from low-level local automation equipment. The presented functionality of the system for control and processing information on movements of wagons and locomotives at the station in real time (SCPI MWL RT) implements the set goals by integrating initial data from all automation and centralised traffic control systems operating at the station, checking it for consistency, eliminating information redundancy and generating in real time the current model of a marshalling yard regarding trains and wagons and based on data «from the wheel».Description of the existing functionality of SCPI MWL RT, implemented at a facility, is followed by the analysis of the advantages of this system for the railway cargo transportation network. The objective of the paper is to present some previously unpublished technical solutions for implementation of the specified functionality. The methods of the research are based on fusion of heterogeneous data received from floor devices, specialised video cameras, as well as from real-time wagon positioning models.It is shown that adoption of new technical solutions for SCPI MWL RT will allow to considerably improve the quality of planning of technological process of classifying railway wagons and of forecasting the need for infrastructure maintenance. Deep learning algorithms presented ensure functioning of the developed solutions in real time with high accuracy. Further steps described refer to implementation of a digital platform in the form of a digital twin of a marshalling yard, creating thus a prerequisite for development of an intelligent automatic machine to control the marshalling yard, as well as for further planned ways to implementation there-of.
THE EFFECT OF CONCENTRATION AND FREQUENCY OF APPLICATION OF BANAN WEEVIL SOLUTION KEPOK ON RED CHILI
Authors: Tobing Oktavianus Lumban , Mulyaningsih Yanyan , Danuningrat Raden 
Published: September 2021

The purpose of the study is to determine the effect of concentration and frequency of application of banana weevil solution kepok against red chili plants is roofed with translucent ultraviolet plastic 70% which acts as a natural growth regulator. Research on the provision of banana weevil solution covered in 70% translucent ultraviolet plastic in open land has not been found before. The growing regulators from the gibberellin and cytokinin groups were able to boost the growth and yield of chili peppers. The method of using a random design of factorial groups, as the first factor is age consists of 9 levels, namely T1: age (14) HSPT, T2: age (14.21) HSPT, T3: age (14,21,28) HSPT, T4: age (14,21,28, 35) HSPT, T5 : age (14,21,28,35, 42) HSPT, T6: age (14,21,28,35,42,49) HSPT, T7: age (14,21,28,35,42,49,56) HSPT, T8: age (14,21,28,35,42,49,56,63) HSPT, and control (T0). The second factor is concentration consists of 3 levels, namely K1 (30%), K2 (45%), and K0 (0%). The results of the study obtained concentration of K1 (30%) with the amount of T6 administration is the best result in vegetative growth of the plant height change, the number of branches, and the width of the header, while the concentration of K1 (30%) give the best results on the length of the fruit, the dry weight of the fruit, and the diameter of the fruit from other treatments. Conclusion of the application of concentration and frequency of the sea of banana weevil kepok containing regulatory substances growing on red chili plants in the field covered with ultraviolet plastic roof significantly increases the growth and yield of red chili peppers.
PENGETAHUAN MEMPENGARUHI MOTIVASI KELUARGA DALAM PELAKSANAKAN GERAKAN MASYARAKAT HIDUP SEHAT
Authors: Dewi Susyana Candra Santi 
Published: September 2021

Latar Belakang : Perubahan pola hidup masyarakat yang makin modern menjadi factor perkembangan penyakit degenerative dan merupakan ancaman terbesar dalam masyarakat. GERMAS (Gerakan Masyarakat Hidup Sehat) merupakan program sebagai usaha kesehatan yang bersifat preventif dan promotif akan tercapai dengan baik. Tujuan Penelitian : untuk mengetahui pengaruh pengetahuan dan sikap terhadap motivasi keluarga dalam melaksanakan GERMAS di RW 15 Desa Minggiran Yogyakarta. Metode Penelitian : Jenis penelitian ini dengan metode kuantitatif dengan pendekatan cross sectional dengan populasi dan sampel tertentu, penelitian ini di laksanakan di RW 15 Desa Minggiran Yogyakarta. Teknik sampling dengan mengunakan purposive sampling dengan jumlah 66 responden. Analisis menggunakan uji chi square. Hasil penelitian menunjukkan mayoritas responden berpengetahuan baik tentang gerakan masyarakat hidup sehat yaitu sebanyak 56 orang (84,8%), dengan sikap yang baik tentang gerakan masyarakat hidup sehat yaitu sebanyak 46 orang 69,7%). Hasil uji analisa menunjukkan pengetahuan responden memiliki pengaruh yang signifikan terhadap motivasi melakukan gerakan masyarakat hidup sehat dengan p-value = 0,045. Hasil uji analisa menunjukkan sikap responden tidak berpengaruh signifikan terhadap motivasi melakukan gerakan masyarakat hidup sehat dengan p-value = 0,791. Kesimpulan : pengetahuan memiliki pengaruh yang signifikan terhadap motivasi masyarakat melakukan GERMAS.
PENGARUH PENDIDIKAN KESEHATAN DENGAN BOOKLET TERHADAP PENGETAHUAN IBU HAMIL TENTANG 1000 HARI PERTAMA KEHIDUPAN
Authors: Susanti Lilis 
Published: September 2021

Masalah gizi seringkali muncul karena masyarakat memiliki pengetahuan, kepercayaan, nilai atau norma yang kurang memadai. makan makanan yang bergizi merupakan perilaku yang penting untuk kesehatan dan perkembangan anak. Namun ada beberapa fakor mempengaruhi makan ibu seimbang diantaranya pengetahuan, maka untuk meningkatkan pengetahuan ibu dengan pendidikan kesehatan. Pemilihan pendidikan yang efektif diperlukan untuk mencapai maksimal. Pendidikan kesehatan yang disampaikan dengan booklet dapat meningkatkan. Tujuan penelitian untuk mengetahui pengaruh pendidikan kesehatan dengan booklet terhadap pengetahuan ibu hamil ibu tentang 1000 hari pertama kehidupan. Penelitian ini merupakan penelitian kuantitatif dengan metode quasi experiment. Desain yang digunakan dalam penelitian ini adalah pre-post test with control group design, yang dilakukan pada ibu hamil di PMB Herasdiana Palembang dengan reponden 30 ibu hamil. Hasil uji Wilcoxon menunjukan adanya peningkatan pengetahuan signifikan sebelum dan setelah intervensi pada kelompok intervensi (p=0.0005). sedangkan hasil uji man whitney juga menunjukan adanya signifiikan antara kelompok intervensi dan klompok kontrol (p=0.001). jadi dapat disimpulkan bahwa pendidikan yang disampaikan dengan media booklet dapat menpengaruh signifikan meningkakan pengetahuan ibu hamil tentang 1000 hari pertama kehidupan.
Kata kunci : Pendidikan, pengetahuan kesehatan, booklet, ibu hamil , 1000 hari pertama kehidupan
Post-Pandemic Education: Falling or Preparing for a Jump?
Authors: Bolgova V. V. , Garanin M. A. , Krasnova E. A. , Khristoforova L. V. 
Published: September 2021

Abstract. Relevance. The article provides an overview and analysis of the consequences of changes in the global educational space during the period of action of measures to counter the spread of the new COVID-19 coronavirus infection.The aim of the work was to understand the current state and identify possible trajectories of developmentof educational systems in the “post-pandemic” era. Research methodology and methods. The main methods used in the preparation of the work were methods of analysis and synthesis. The review and understanding of various standpoints on the educational organizations functioning in the situation of emergency introduction of quarantine measures and the uncertainty of their consequences allowed us to summarize the main challenges facing the education system today. The forecasting method was used to systematize the capabilities of universities in overcoming crisis phenomena and determine the strengths that can be used as the basis for the transformation of University management.Results. The analysis of the trajectories of the prospective organization of the educational process at the University of “post-pandemic” time is carried out. The article highlights the main ways of the educational system adaptation to work in the conditions of an unpredictable crisis consequences and presents the authors’ vision of the future of higher education in Russia, which is inextricably linked with the country’s attractiveness in the global educational space.Scientific novelty. The authors systematize the impact of the pandemic on various sectors of the economy, including the education sector. The results of the analysis of the practical experience of educational systems in the new conditions are presented. Scenarios of educational organizations development in an unfavorable dynamic uncertain environment are shown.Practical significance. The results obtained will be useful in adjusting University management systems and developing strategies for universities to overcome the crisis caused by COVID-19 and its consequences.