bluuebunny/crossref_metadata_2025 huggingface dataset:
Sosialisasi Mengenai Kenakalan Remaja Di Kampung Rawa Bebek Kota Bekasi
Authors: Safitri Rhozyania , Vonika Resta Uli , Octavia Meyla Nur , Maharani Selvi Suci , Sirait Nadine Odelia Emmanuelha , Zidane Azka Zine , Tarigan Arthur Natanael
Published: July 2024

Tujuan dari program pengabdian masyarakat dapat mengedukasi mengenai perkembangan anak usia remaja dan penyebab terjadinya kenalakan remaja, serta cara mencegah terjadinya kenakalan remaja. Adapun sosialisai kepada masyarakat mengenai kenakalan remaja di kampong rawa bebek RW. 015 Kota Bekasi dapat disimpulkanbahwa program kegiatan pengabdian masyarakat berjalan sesuai dengan yang telah direncanakan menggunakan pre test-pos test sehingga hasil sosialisasi dapat meningkatkan pengetahuan dan ilmu mengenai kenakalan remaja. Kegiatan pelaksanaan yang berlangsung pada bulan November-Desember 2022. Adapun saran yang dapat kami berikan selama menjalankan terkait dalam pelaksanaan program pengabdian masyarakat ini diharapkan dapat meningkatkan mutu dan kualitas semua pihak. Bagi mahasiswa hendaknya mampu menyiapkan diri baik segi mental, spiritual, fisik, serta kemampuan kognitif untuk bersosialisasi dan menyesuaikan diri dengan remaja.
ASSESSMENT OF THE RISKS OF MALIGNANT NEOPLASMS IN THE POPULATION WHEN REUSING MINE WATER
Authors: Oriekhova Oksana V. , Pavlenko Oleksandr I. , Varyvonchyk Denys V. , Kopach Kateryna D.
Published: July 2024

Introduction. Extraction of iron ore is accompanied by the formation of significant volumes of mine waters, which are characterized by high mineralization. In the process of draining mine waters into surface reservoirs without their proper purification from pollutants and demineralization, it poses a significant environmental hazard and a threat to human health. The high incidence of malignant neoplasms in the population of Ukraine requires new approaches to the development of ways and methods of prevention, taking into account all determinants, including environmental factors.
Aim. Establishing the risk of developing malignant neoplasms in the population when re-using mine water.
Materials and methods. The methodological approach to the comprehensive assessment of the state of mine waters of the Kryvyi Rih iron ore basin involved the use of a complex of hygienic, experimental, epidemiological and medical-statistical research methods.
Results. We found that the concentrations of chemical substances exceed the maximum permissible levels for total mineralization by 22–25 times, by chloride content by 31–37 times, by suspended substances by 140–156 times, by iron by 4,4–4,9 times, and leads to changes in smell, colour, taste and increased aggressiveness of water to metals. Mine water of the Kryvyi Rih iron ore basin belongs to brines and is characterized as chloride-sulfate. The level of biochemical oxygen demand exceeds the maximum allowable standards by 2,64–2,76 times, and chemical oxygen consumption by 10–11 times, which can lead to a decrease in the oxygen content in natural reservoirs and create unsuitable conditions for the life of living organisms. The probability of developing malignant neoplasms for residents of the city of Kryvyi Rih is 0,05935, which is 15,71–23,62 times higher than the similar indicator for residents of the Dnipropetrovsk and Chernivtsi regions respectively. The additional (attributable risk) caused by environmental pollution is 0,05683 for residents of the city of Kryvyi Rih, while this indicator for residents of the Dnipropetrovsk region is 0,001264, which is 44,96 times lower. The need for a comprehensive approach to risk management is proven, which is based on a probabilistic assessment of the negative consequences of the impact of environmental factors on health and consists of certain stages: data collection and evaluation, impact and hazard assessment, environmental risk characterization.
Conclusions. Taking into consideration the indicators of the content of chemicals in mine water and the analysis of the levels of morbidity of the population with malignant neoplasms, the need for mandatory cleaning and demineralization of mine water when it is reused is scientifically substantiated.
Experimental and Numerical Failure Analysis of a Rotary Vacuum Disc Lime Filter - Part 1: Fluid Flow Study of Filtration Process
Authors: Cieslakiewicz Waldemar , Madyira Daniel , Rodrigues Marcos Roberto , Grimm Wilfrid , Scholtz Dewald
Published: July 2024

The mechanical separation of solids from liquids (filtration) is a critical process in many chemical process industries. The rotary drum filter can be considered a work-horse device which is one of the oldest filtration devices that has been used for centuries. Its reliability is affected by several process parameters leading to reduced life and poor separation effectiveness. Common problems include breakage of filtration medium, wear of filtration holes and breakage of the backing plates. In this work, a study is conducted to understand the causes of significant wear exhibited in one rotary drum vacuum filter to understand the process parameters that led to this failure. A record of the process parameters was recorded and used to validate a CFD (CCM+) model that was used to conduct a parametric study of the systems.
System of mueller-matrix interferometry of polycrystalline films of exhaust for differential diagnostics of necrotic changes in wounds of biological tissues
Authors: Ushenko Y.O. , Sckliarcuk V.M. , Dubolazov O.V. , Soltys I.V. , Olar O.V. , Gavriliak M.S. , Gorskiy M.P. , Zhitariuk V.G.
Published: July 2024

A brief theoretical description of the processes of formation of polarization maps of the single-scattered component of the object field of polycrystalline films of exudate from punctured wounds of rats is presented. A series of polarization maps of azimuth and ellipticity of digital microscopic images of polycrystalline effusion films for different times after damage was obtained using the Mueller-matrix polarization interferometry method. Statistical markers for detecting the severity of necrotic changes in damaged biological tissues have been determined. The main directions of promising research using the principles of laser-induced autofluorescence polarimetry are presented.
Analysis of technology and tools for developing augmented reality systems
Authors: Shevchuk R P. , Tykhiy R.R.
Published: July 2024

The article presents an analysis of modern technologies and tools for implementing augmented reality (AR) systems. The specifics of the functioning of markerless and marker-based technologies for creating virtual objects are presented, as well as their features and examples of application. The basic components of augmented reality systems are identified and the process of their interaction is detailed. A functional analysis of the most popular AR frameworks and platforms for the development and use of AR-applications.
Features of determining the location of the reference image on the current half-tone using the method of binary slices
Authors: Skoriukova Ya.G. , Martyniuk T.B. , Markov S.M. , Kokushkin V.M.
Published: July 2024

The possibility of creating new effective approaches and methods for the operation of visual systems of mobile works for the identification of tasks and objects of objects is due to the requirements of today. The work method is an analysis of the features of halftone image processing using the method of binary slices to identify a reference image in the field of the current image. The methods of analysis, abstraction and analogy were used as research methods. Separate articles offer an approach to complementing a reference halftone image on a current halftone image. To do this, we note the features of using the method of binary slices for processing a halftone image in combination with methods that allow you to destroy the reference binary image on the current binary image. The proposed approach includes a step of forming a set of binary slices of the halftone current image, a step of forming a set of binary slices of the halftone reference image, a step of matching the binary slices of the reference to the binary slices of the current image, a step of determining the location of each binary slice of the reference on the corresponding slice of the current image, and a step analysis of the obtained results and determination of the location of the halftone reference image on the halftone current image. A solution is proposed using a specific example. The practical value of the proposed approach is that a complex halftone image with a large number of brightness levels can be reduced to simple binary matrices, most of which are simply excluded from the processing process. At the same time, there remains a choice of the method of determining the binary slice of the standard on the field of the binary slice of the current image.
Książę Mastema i jego armia w Księdze Jubileuszy
Authors: Tronina Antoni
Published: July 2024

Księgą Jubileuszy jest cennym świadectwem literatury „międzytestamentalnej” z okresu walk machabejskich o suwerenność religijną i narodową Izraela. Podjęty tutaj temat dotyczy unikalnego w literaturze określenia wodza złych duchów wyrażeniem „Książę Mastema”. „Mastema” jest nie tyle imieniem własnym, co raczej określeniem jego funkcji w świecie. „Władca wrogości” jest tu ukazany nie jako przeciwnik Boga, lecz jako dowódca armii złych duchów, która w czasach ostatecznych stoczy walkę z duchami wiernymi Bogu.
Crystals of salts of nickel and cobalt transitional elements for optical filters
Authors: Manomenova V. L. , Rudneva E. B. , Vasilyeva N. A. , Sorokina N. I. , Komornikov V. A. , Matveeva D. S. , Lyasnikova M. S. , Grebenev V. V. , Kovalyov S. I. , Voloshin A. E.
Published: July 2024

Works performed at the A. V. Shubnikov Institute of Crystallography on the development of UV range optical filters based on complex compounds of nickel and cobalt are reviewed. The structural relationships of the crystal optical properties and their thermal stability are considered. Fundamental features of mixed crystals grown from solution and advanced approaches to creating optical filters based on structurally perfect mixed crystals K2(Co, Ni)(SO4)2 · 6H2O are described. The possibility of creating UV-A optical filters by partial substitution of the ligand environment of transition metal ions is demonstrated.
Structure and conductivity of lithium-doped fluorite-like Nd5Mo3O16 molybdates
Authors: Orlova E. I. , Trukhacheva M. P. , Sorokin T. A. , Kvartalov V. B. , Antipin A. M. , Lyskov N. V. , Kharitonova E. P. , Novikova N. E. , Sorokina N. I. , Alekseeva O. A. , Voronkova V. I.
Published: July 2024

Rare-earth molybdenum-containing oxides of nominal composition LixNd5 – xMo3O16 ± δ (x = 0, 0.05, 0.15, 0.25) with a fluorite-derived structure were first obtained as single crystals from a melt solution and by solid-phase synthesis in air as polycrystalline samples. The new phases were characterized by X-ray phase analysis, synchronous thermal analysis, and impedance spectroscopy. X-ray structural analysis showed that lithium atoms are localized near the positions of rare-earth cations. The chemical formula of the investigated single crystal was determined as Li0.216Nd4.784Mo3O14.1+δ. A small amount of lithium did not significantly affect the ability of the studied phases to undergo dissociative water absorption but led to a decrease in the total conductivity of lithium-doped LixNd5 – xMo3O16 ± δ ceramics.
Комплекс октафторпропионилацетоната магния с N,N,N’,N’-тетраметилэтилендиамином, [Mg(tmeda)(ofhac)2] как потенциальный летучий прекурсор пленок MgF2
Authors: Викулова Е. С. , Рихтер Э. А. , Сысоев С. В. , Пищур Д. П. , Федоренко А. Д. , Морозова Н. Б.
Published: July 2024

Разнолигандные комплексы магния со фторированными β-дикетонами и диаминами перспективны в качестве прекурсоров для получения тонких пленок MgF2 методом химического осаждения из газовой фазы (MOCVD). В настоящей работе проведено комплексное исследование наиболее летучего на данный момент представителя этого семейства, [Mg(tmeda)(ofhac)2] (tmeda = (CH3)2NCH2CH2CN(CH3)2, ofhac = C2F5COCHCOCF3–. Методом ДСК определены характеристики процесса плавления (Тпл. = 354.4 ± 0.6 K, ∆пл.Н = 23.3 ± 0.9 кДж/моль) и показано, что комплекс стабилен в конденсированной фазе как минимум до 473 K. Исследована температурная зависимость теплоемкости в интервале 298–403 K. Методом переноса в потоке гелия измерены температурные зависимости давления насыщенного пара над твердым (318–352 K) и жидким (358–393 K) комплексом. Определены термодинамические параметры сублимации и испарения. С помощью квантово-химических расчетов (B3LYP-D3(BJ) / def2-SVP, def2-TZVP и OPBE / TZ2P-J) проведено сравнение возможных изомеров комплекса (по положению C2F5-заместителей).
NONDESTRUCTIVE TESTING METHOD FOR ELECTRICAL CAPACITANCE TOMOGRAPHY BASED ON IMAGE RECONSTRUCTION OF ROTATING ELECTRODES
Authors: Qian Zhang , Hong Mo , Ruxue Li , Chenghua Liang , Junhua Luo
Published: July 2024

The electrical capacitance tomography (ECT) is a visual nondestructive testing technology. The relative positional distribution between the electrodes and the phantom object affects the accuracy of the reconstructed image. To solve this problem, an image reconstruction method and image fusion algorithm of ECT system based on rotating electrodes are proposed. First, 4 image reconstruction algorithms are employed to reconstruct the experimental model, the Landweber iterative algorithm based on Tikhonov regularization presents the best performance. Then, by rotation the 12 electrodes 4 times, we can obtain 5 sets of capacitance data, and obtain 5 images. Finally, the fusion results can be obtained by performing the adaptive weighted fusion on these 5 images. Results show that the adaptive weighted image fusion method based on rotation electrodes improves the quality of reconstructed images and effectively reduces the artefacts.
PARALLEL IMAGE RECONSTRUCTION USING THE MAXIMUM LIKELIHOOD METHOD USING A GRAPHICS PROCESSOR AND THE OpenGL LIBRARY
Authors: Zolotarev C. A , Taruat A. T
Published: July 2024

The creation of fast parallel iterative statistical algorithms based on the use of graphics accelerators is an important and urgent task of great scientific and practical importance. An algorithm based on the method of maximizing the mathematical expectation of maximum likelihood (maximum likelihood expectation MLEM) is considered. MLEM is a numerical method for determining maximum likelihood estimates and, since its first application in the field of image reconstruction in 1982, remains one of the most popular statistical methods of image reconstruction, being the foundation for many other approaches. A new version of the MLEM parallel algorithm is proposed, which provides global convergence of the iterative algorithm. To parallelize the algorithm, the texture mapping method is used using the OpenGL graphics library. The parallel algorithm is described in as much detail as possible. Examples of several reconstructions of images of aluminum casting products are given The obtained result can be used for non-destructive testing of various industrial products, including testing of foundry products.
DIVERSITY AND ABUNDANCE OF TREE SPECIES IN SECONDARY SCHOOLS, OGBOMOSO-NORTH LOCAL GOVERNMENT, SOUTH-WEST NIGERIA
Authors: Odebunmi Christiana ,   *Derived Guinea Savannah Research Station Aduin, Ogbomoso, Oyo State, Nigeria, Olopete Queen , Akinyode Victro , Ale Joy Enitan , Adelola Rebecca , Adams Oluwadamilola , Alagbe Adeola , Adebayo Olaoluwa ,   Forestry Research Institute of Nigeria, Ibadan, Oyo State, Nigeria,   Federal College of Forestry Resource Management Maiduguri, Borno State, Nigeria,   Forestry Research Institute of Nigeria, Ibadan, Oyo State, Nigeria,   Fitzpatrick Institute of African Ornithology, Biological Sciences Department, University of Cape Town, South Africa,   National Defence College, Abuja, Nigeria,   Derived Guinea Savannah Research Station Aduin, Ogbomoso, Oyo State, Nigeria,   *Federal College of Forestry, Forestry Research Institute of Nigeria, P. M. B. 5087, Ibadan, Oyo State, Nigeria
Published: July 2024

Assessing tree species diversity at Ogbomoso-North Secondary Schools, Nigeria provides essential data for effective environmental management in both rural and urban areas. The study sites were selected through a two-stage selection process. The information obtained was on tree species and abundance which was done by point count usage. Descriptive statistics, Shannon-Weiner diversity Index, Simpson’s Diversity Index and Analysis of variance were used to evaluate the information gotten. A total number of 38 tree species in 22 families were documented in the assessment. The Fabaceae (15.8 %) Apocynaceae (10.5 %), Arecaceae (10.5 %) and Euphorbiaceae (7.9 %) were the most abundant families observed. The tree species diversity was unevenly dispersed, though, the ANOVA result indicated that the tree species profusion was typically spread and uniformed significantly (p > 0.05) among the study sites. The study established that the schools in the study area have a diverse composition of trees and are key supporters of a solid environmental framework. It was suggested that partners ought to develop the establishment and authorization of regulations that will protect the trees, as well as afforestation, which should be done in short-term periods to replace the felled trees in the school compounds in South-West Nigeria.
QUALITY EVALUATION OF SOME HONEYS FROM DIFFERENT FLORA HABITATS FROM SETIF, EASTERN OF ALGERIA
Authors: Belguet Assia ,   *University of Setif, Faculty of Sciences of Life and Nature, Department of Biology and Vegetal
Ecology, 1, Algeria, Bouchareb Radia , Benider Chafia , Guendouz Ali ,   University of Mentouri Brothers Constantine, Faculty of the Science of Nature and Life, Department of Biology and Plant Ecology, 1, Algeria,   *University of Setif, Faculty of Sciences of Life and Nature, Department of Biology and Vegetal
Ecology, 1, Algeria,   National Agronomic Research Institute of Algeria (INRAA), Setif Research Unit, Algeria
Published: July 2024

The quality of four samples of honey, from the eastern of Algeria, was evaluated by determining the physicho-chemical characteristics of honey. In this study, water content (%), Total sugar (%), Proline (mg/Kg) and hydroxymethylfurfural (HMF) (mg/Kg) were determined in different types of four flora honey. The main components of honey are sugar and water, the dominant types of carbohydrate are glucose and fructose which contains approximately 70–83 %, the results of analysis showed that the total sugar estimated by the refractometre ranged from 79 to 80.5%. The water content ranged from 16.5 to 18 % within the accepted range proposed by Codex Alimentarius of no more than 20 %. In addition, HMF values confined between 0.248 and 49.30 mg/Kg, the highest value registered in the imported honey indicate that this sample was stored for longer time at elevated temperatures. Proline content of honey constantly decreases during storage therefore the proline might be indicator of honey ripeness, the proline content in the four honey samples tested varied between 205 and 1161 mg/kg, within the accepted d range proposed by Codex Alimentarius of more than 180 mg/kg. Overall, the local different flora honeys revealed that eastern Algeria honey is fulfils national and International standards.
Pengaruh Profitabilitas terhadap Nilai Perusahaan dengan Kebijakan Dividen sebagai Variabel Moderasi pada Perusahaan yang Terdaftar Di Index LQ45 Periode 2019-2022
Authors: Abdilah Agustini , Prijanto Budi
Published: July 2024

Currently, the world has entered the era of globalization with economic threats, the challenges faced by companies are becoming increasingly severe, this will have an impact on tight competition for companies. Therefore, companies will compete to attract the attention of investors in order to survive, one way is by increasing the value of the company. Company value is one of the capital market indicators in assessing the company as a whole, where the company value shows its future prospects. This research aims to determine and analyze the influence of profitability on company value and whether dividend policy is able to moderate (strengthen/weaken) the relationship between profitability and company value, to be used as a benchmark for companies regarding the most significant factors in increasing company value. The type of data used is secondary quantitative data in the form of annual financial reports of companies listed on the LQ45 Index for the 2019-2022 period. The sample in this study was 10 companies listed on the LQ45 Index for the 2019-2022 period, using a purposive sampling method. The data analysis technique in the research uses Moderated Regression Analysis (MRA) using the SPSS For Windows 26.0 software tool. The research results show that profitability has a significant effect on company value and dividend policy is able to moderate (strengthen) the relationship between profitability and company value.
Analisis Hubungan Komitmen Organisasi dan Disiplin Kerja terhadap Kinerja Pegawai Pemerintah Kota Makassar
Authors: Yuniza Tri Fira , Suhartini Anna Ashrawi
Published: July 2024

The quality of an organization's performance is seen in a quality structure, especially in the commitment that is born from all elements of the organization, and work disciplines that become habits and culture. This study aims to determine and analyze the relationship between organizational commitment and work discipline on the performance of government employees in the city of Makassar simultaneously, and partially to achieve the target. The object of this research is the financial management employee at the SKPD in the city of Makassar with 60 respondents. The data used in this study is primary data obtained from employees through the distribution of questionnaires at the SKPD office in Makassar City. The analytical method of this research is a quantitative approach (Quantitative approach) with the help of the SPSS statistical program. The results of this study indicate that discipline partially has a positive and significant effect on the performance of financial management employees at SKPD in Makassar City. Where organizational commitment and work discipline have a positive and significant value on the performance of financial management employees at SKPD in Makassar City.Â
Evaluasi Keberterimaan Pengguna terhadap Sistem Informasi Akademik Politeknik Negeri Ujung Pandang
Authors: Istiyana Nurul Andi , Nurniah Nurniah , Azis Siti Nafisah , Nur Muh Abid
Published: July 2024

Nowdays, academic information system is a resource that must be owned by every university, both public and private. The requirement for fast, precise and reliable information is a conditiont that must be fullfied. The PNUP or SIMPONI academic information system has been implemented since 2020 and is a new system that replaces the previous system. In its use, the role of educators (Tendik) becomes the most influential user in the data processing process. However, since it was implemented, there are still some obstacles and data integration that has not been optimal.This study is an explanatory research, aims to explain the causal relationship between research variables and test the hypothesis formulated using the TAM Model. Tests will be carried out on users of the Ujung Pandang State Polytechnic with data collection techniques in the form of interviews and questionnaires. While the data analysis method is PLS-SEM using SmartPLS.Based on the results of the study, 4 hypotheses were tested, 2 hypotheses were accepted, namely perceptions of ease of use towards attitudes to using technology and attitudes to using technology towards interest in using technology. This shows that SIMPONI is still not well received. The rejected hypothesis is the perception of usefulness towards the attitude of using technology and the interest in using technology towards the actual use of technology. Furthermore, it is hoped that PNUP will be more responsive in making improvements and adjustments to system constraints.
Pengukuran Kinerja Ekonomi, Efisiensi, dan Efektivitas pada RSUD Labuang Baji Provinsi Sulawesi Selatan
Authors: Akrama St Marwa , Sukirman Anna Sutrisna , Yusrianti Eti
Published: July 2024

Value for money merupakan salah satu pengukuran kinerja organisasi sektor publik yang memuat indikator input, output, dan outcome yang dapat dijadikan alat ukur dalam menilai kinerja ekonomi, efisiensi, dan efektivitas. RSUD Labuang Baji Provinsi Sulawesi Selatan belum menekankan pengukuran value for money karena alat ukur dan capaian kinerjanya hanya berada pada tingkat output. Pengukuran value for money dapat menghasilkan penilaian yang lebih kompleks dan menyeluruh sehingga dapat dijadikan tolak ukur dan bahan pertimbangan dalam mengevaluasi kinerja. Kegiatan ini bertujuan mengukur kinerja ekonomi, efisiensi, dan efektivitas dengan pengukuran value for money pada program/kegiatan RSUD Labuang Baji Provinsi Sulawesi Selatan.Pengukuran kinerja pada RSUD Labuang Baji Provinsi Sulawesi Selatan menggunakan metode value for money dengan mengukur tingkat ekonomi, efisiensi, dan efektivitas dari program yang dilakukan berdasarkan data-data yang diperoleh dengan teknik analisis dokumen. Adapun tipe kegiatan yang digunakan yaitu penelitian lapangan.Berdasarkan hasil kegiatan dan deskripsi diketahui bahwa dari tiga program, tujuh kegiatan, dan sembilan subkegiatan RSUD Labuang Baji Provinsi Sulawesi Selatan diperoleh rerata nilai kinerja ekonomi yakni 103,39%, rerata nilai kinerja efisiensi yakni 93,55%, dan rerata nilai kinerja efektivitas yakni 103,39%. Hal tersebut menunjukkan bahwa program/kegiatan RSUD Labuang Baji berada pada kriteria ekonomis, efisien, dan efektif dengan nilai kinerja akhir 100,04% yang berada pada kriteria berhasil.
Analisis Pengelolaan Modal Kerja terhadap Rasio Rentabilitas pada Perusahaan Manufaktur yang Terdaftar di BEI Periode Tahun 2018-2022
Authors: Arifin Andi Harmoko
Published: July 2024

The purpose of this research is to analyze the impact of working capital management on the improvement of profitability ratios in manufacturing companies listed on the Indonesian Stock Exchange during the period from 2018 to 2022. The population under investigation comprises all manufacturing companies listed on the Indonesian Stock Exchange during that period. In this study, a sample of 7 manufacturing companies listed on the IDX with complete financial reports was used, resulting in a total of 35 samples analyzed. The data analysis applied in this research involved hypothesis testing using the statistical software SPSS. The findings of this study indicate that working capital management is a critical element in a company's operations. It can be concluded that when a company is able to increase its sales volume, the resulting profit tends to increase, which subsequently has a positive impact on the company's profitability ratios. This underscores the importance of managing a company's current assets and current liabilities through working capital management to achieve high efficiency levels and ensure that net working capital is maintained at an acceptable level.
Perspective of Gen-Z Leadership Style in Financial Reporting and Corporate Decision Making
Authors: Hirman Akhmad Akram
Published: July 2024

Leadership is the process of influencing others to cooperate in achieving a common goal with a willingness to lead. There are various differences in leadership perspectives. Therefore, this research was conducted to understand the perspective of leadership style. This study aims to describe the perspective of Generation Z's leadership style in making financial statements and decision making in a company. In collecting data, this research uses interview instruments with ten sources through a case study research approach to leadership perspectives in certain companies. This research can provide new insights or more understanding of the current generation z leadership style. The results showed that most generation Z applied democratic and situational leadership styles in the company
The Effect of Profit Growth and Price Earnings Ratio on Stock Return in Property and Real Estate Companies Listed on the Indonesia Stock Exchange for the 2020-2022 Period
Authors: Azis Muhammad , Anwar Azwar , Yoshita Rika
Published: July 2024

This research aims: (1) To analyze the effect of profit growth on stock returns in Property & Real Estate companies listed on the Indonesia Stock Exchange for the 2020-2022 period, (2) To analyze the influence of the Price Earnings Ratio on stock returns in Property & Real Estate companies listed on the Indonesia Stock Exchange 2020-2022, (3) To analyze the simultaneous influence of profit growth and Price Earnings Ratio variables on share returns in Property & Real Estate companies listed on the Indonesia Stock Exchange for the 2020-2022 period. The independent variables in this research are (1) Profit Growth, and (2) Price Earnings Ratio, while the dependent variable is Stock Return. The population of this research is all financial reports of Property & Real Estate Companies, while the research sample is the financial reports of Property & Real Estate Companies using a purpose sampling technique of 14 companies. Data collection is carried out using documentation. Data analysis was carried out using multiple linear regression analysis. The results of this research show that all independent variables influence the dependent variable significantly, both partially and simultaneously. The implications of this research provide empirical evidence that profit growth and stock prices in relation to profits influence stock returns or the profits obtained by investors from the funds invested in an investment. Thus, it is best for companies to maintain profits and profit growth in order to maintain company values.
Utilization of Green Betel Leaf as Adsorbent of Lead and Copper Metals in Artificial Wastewater
Authors: Syahrir Muallim , Yasser M , Rosalin Rosalin
Published: July 2024

Green betel leaf contains phenolic compounds that can bind metal ions. The purpose of this study was to determine the effect of variations in the mass of green betel leaf and stirring time based on the efficiency and adsorption capacity of lead and copper metals in artificial wastewater. Adsorption process using the stirring with a magnetic stirrer. The variation used is the stirring time of 30 and 60 minutes and the mass of the adsorbent is 25,30,35, 40 grams. Artificial wastewater is made from 1 gram of each Pb(NO3)2 and CuCl2.2H20 in 500 ml of aquadest. Analysis of the metal using the AAS (Atomic Absorption Spectrophotometry). The results of the analysis showed that the optimum adsorption of lead metal was at a mass of 30 grams of betel leaf and a stirring time of 1 hour, where green betel leaves were able to adsorb 99.96% of lead metal, from a Pb level of 6435 ppm to 2.48 ppm. While the optimum results for adsorption of copper metal were 35 grams of betel leaf mass and 30 minutes of stirring time, where green betel leaves were able to adsorb 49.83% copper metal, from 158 ppm Cu level to 79.27 ppm.
Sistem Informasi Standard Operation Procedure untuk Penjadwalan Produksi pada Industri Otomotif
Authors: Razak Arthur Khalik
Published: July 2024

Pada umumnya SOP yang dibuat masih bersifat manual, sedangkan kendala dalam industri otomotif adalah aliran informasi bersifat dinamis. Sebagai contoh adanya penambahan, penghapusan, atau penggantian komponen pada suatu proses yang disebabkan oleh pengembangan suatu model product. Hal tersebut akan mempengaruhi kegiatan produksi pada saat informasi perubahan diberikan. Sedapat mungkin perubahan aliran informasi tidak berpengaruh terhadap efektifitas kerja. Perubahan yang terjadi pun cukup sering, sehingga informasi produksi pun harus cepat tanggap dan dinamis. Atas dasar tersebut maka penelitian ini bermaksud untuk mengubah pengelolaan sistem SOP yang bersifat manual menjadi SOP yang bersifat elektronik. Metode penyelesaian masalah yang digunakan adalah pembuatan aplikasi berbasis web. Sistem yang dikembangkan mempunyai kemampuan untuk melakukan pembaharuan SOP secara langsung apabila ada penambahan, penghapusan atau penggantian komponen. Record dari SOP sebelumnya yang telah diperbaharui tetap tersimpan di dalam database. Dengan dibuatnya sistem informasi ini, maka distribusi SOP pada setiap area pekerjaan dapat dipersingkat. Sistem yang dikembangkan ini merupakan sub bagian dari sistem informasi perakitan kendaraan yang lainnya.
Dampak Difusi Arus dalam Konduktor untuk Nilai Beban Resistif Lebih Besar dari Impedansi Saluran
Authors: Yunus A.M Shiddiq , Apollo Apollo
Published: July 2024

Research on current diffusion into the conductor is one of important segments in electrical engineering field of study. The main purpose of the study is to recognize the behaviors and characteristics of current diffusion in conductor for further development in the future. The results of the research would be very useful, particularly in the transmission line study. In this paper, study will be focused at the characteristic of current diffusion in conductor due to its variation impedance value of load particularly when resistive load is larger than the conductor impedance (Zo).
Penyelesaian Aliran Daya 37 Bus Dengan Metode Newton Raphson (Studi Kasus Sistem Interkoneksi 150 kV Sulawesi Selatan)
Authors: Djalal Muhammad Ruswandi , Chandra Yudhi Leo , Yunus Muhammad Yusuf , Nauwir Herman
Published: July 2024

Changing in structure systems although in power plants, it must be concerned, because if one of the components out of the system, will be followed by changes in power flow and voltage profile. Study of power flow becomes very necessary to analyze power flow that occurs in electric power systems, both now and for the planning system in the future. ETAP 4.0 (Electric Transient and Analysis Program) is a software that supports the power system. Iteration method (numerical) is one of the techniques to solve power flow studies, one of the method is Newton Raphson Method. The advantage of this method is more appropriate to calculate the power flow in systems with large numbers. From the results obtained with two study cases or two conditions that is used to power flow analyze, that is : normal conditions and with the installation of shunt capacitors on the bus who suffered critical voltage, where for Buses are experiencing critical voltage at Bosowa distribution bus of 10.438 kV or 94,9% and Tanjung Bunga distribution bus at 18.818 kV or 94.1%, whereas after the addition of shunt capacitors on Bosowa distribution Bus at 10.490 kV or 95.4 % and Tanjung Bunga distribution bus at 19.209 kV or 96.0 %. Total losses amounted to 7.483 MW, where the biggest losses are on the transmission line Barru to Pangkep, that is 950.6 kW. The greatest of Active Power (P) is 62.46 MW, which flows from bus 7 Barru to bus 8 Pangkep. The greatest of Reactive Power ( Q ) is 12.55 MVAR, which flows from Bus 26 Pangkep 70 kV to Bus 27 Tonasa 70 kV. The largest voltage Buses is Bus 22 Bone about 152,315 kV or 101,54 % for normal conditions and 152,893 kV or 101.93 % after the addition of the capacitor. Thus, analysis of the results it can be concluded that after the addition of a shunt capacitor, voltage improvement made to meet the standard operating voltage, because the minimum limit of PT.PLN standard is +5% and -5%
Pengaruh Kevakuman terhadap Efektivitas Kondensor PLTU Barru Unit 1
Authors: Apollo Apollo , Mulyadi Musrady , Issaniyah Achmad Yoga , Surahman Fefrianto Muh
Published: July 2024

The condenser is one of the important equipment in a power plant in the process, especially at the power plant system whose function is to condense the exhaust steam turbine extraction into water droplets (condensate water) which is then circulated back to boiler reprocessed into steam. Vacuum condenser is one of the parameters that influence the effectiveness and efficiency of the condenser in particular plants in general. This final report aims to determine the effectiveness of the condenser based on actual data, the optimal gain vacuum value, and comparison between the specifications and the actual effectiveness of the condenser. The method used is collecting data on the load condition of 50%, 75%, and 100% and then perform data analysis.Results will be presented in tables and graphs then making a conclusion. Based on the data and analysis that has been done, it is known condenser effectiveness decreases with an increase in vacuum pressure. Optimum vacuum level is on a scale (80) Kpa - (85) Kpa. From the analysis of the data also can be seen that the effectiveness of the actual data is higher than the effectiveness of the data specification.
Sistim Pembangkit Biogas Model Portabel
Authors: Sonong Sonong , Yunus Muh Yusuf , Marhatang Marhatang , Tandioga Remigius , Nauwir Herman
Published: July 2024

Utilization of livestock manure has not been optimal, whereas livestock manure can be used as feedstock to produce renewable energy (renewable ) in the form of biogas . The problem that occurs is that people have not been able to utilize the manure waste especially cow dung as fuel alternative energy producers. Biogas is a mixture of combustible gas , which is produced by anaerobic fermentation of organic material such as animal manure and agricultural wastes in a digester chamber ( digester ) . In this study digester drum is made of plastic and stuffing materials derived from a mixture of cow dung and water . This study aims to design a portable device of biogas models are easy to assemble , inexpensive and can perform well . From the results of this study can be obtained biogas pressure and long flame generated by means of producing biogas and portable models can be applied to biogas stoves.
Rancang Bangun Kursi Roda Elektrik yang Dapat Naik Turun Tanjakan
Authors: Mustari Mustari
Published: July 2024

Kursi roda adalah alat bantu yang digunakan oleh orang yang mengalami kesulitan berjalan oleh penyakit, cedera, maupun cacat. Beberapa peneliti telah mempergunakan teknologi yang mula-mula dikembangkan untuk mobile robot untuk menciptakan smart wheelchair (kursi roda cerdas), yang mengurangi kebutuhan fisik, keteramatan, dan keterampilan yang diperlukan untuk mengoperasikan kursi roda standar.Kursi roda cerdas didisain untuk menyediakan kemudahan bagi pemakainya. Menurut data Susenas (Survey Sosial Ekonomi Nasional) tahun 2000, difabel di Indonesia mencapai 1,46 juta penduduk yaitu sekitar 0,74% dari total penduduk Indonesia (197 juta jiwa) pada tahun tersebut. Persentase difabel di daerah pedesaan sebesar 0,83%. Lebih tinggi dibanding dengan persentase di daerah perkotaan sebanyak 0,63%. Sedangkan menurut Badan Kesehatan Dunia (WHO) belakangan memprediksikan bahwa satu dari 10 orang Indonesia adalah difabel. dibandingkan hasil Quick survey WHO tahun 1979, yang para peneliti menyimpulkan bahwa difabel di Indonesia mencapai 3,11 Diharapkan bahwa karya teknologi kursi roda elektrik ini dapat mengantisipasi meningkatnya jumlah pasien lanjut usia danhandicap. Para peneliti bidang robotika mengklasifikasikan kebidang mobile robot, diman arobot kursi roda merupakan robot medis yang berfungsi sebagai alat bantu untuk penderita lumpuh dan lanjutusia (lansia). peneliti telah menguji coba beberapa desain kursi roda dari tahun 1967 sampai 1996 danjuga mempelopori pengembangan dan penggunaan kursi roda yang dapat digunakan untuk menaiki/menuruni tangga. Stair-Climbing power wheelchair atau kursi roda yang dapat menaiki/menuruni tangga. Para peneliti di NIRE telah membuat kursi roda dengan sistem kontrol komputer yang dapat dikendalikan melalui komputer dan memiliki sistem autopilot serta sensor yang dilengkapi giroskop untuk memonitor keadaan permukaan jalan. Penelitian lainnya mengenai kursi roda yang dilakukan oleh Jauhar Wayunindho, yaitu menciptakan kursi roda listrik yang dikemudikan dengan gerakan mata, sehingga orang yang lumpuh total mudah untuk menggunakannya. Kursi roda ini menjadikan posisi retina mata pemakai sebagai pengganti joystik untuk mengendalikan kecepatan dan arah kursi roda itu. Namun penelitian tentang rancang bangun kursi roda untuk yang dapat berjalan diatas tangga masih sangat sedikit di Indonesia, sehingga penulis memilih judul yang bertemakan kursi roda sebagai mobile robot. dibandingkan dengan robot manipulator berkaki serta tersedianya kursi roda yang akan dijadikan sebagai alat eksperiment
STUDI ESTIMASI BEBAN HARIAN SISTEM INTERKONEKSI SULSELBAR 2015 DENGAN METODE JARINGAN SYARAF TIRUAN
Authors: Yunus A.M Shiddiq , Lewi Lewi , Firdaus Firdaus , Zulfiadi Zulfiadi
Published: July 2024

Perkembangan masyarakat dari waktu ke waktu semakin bertambah dan kebutuhan akan konsumsi tenaga listrik akan ikut meningkat. Peningkatan kebutuhan tenaga listrik mengharuskan penyedia pasokan listrik dalam hal ini PT. PLN (Persero) dapat menyalurkan tenaga listrik dengan efektif ke konsumen. Untuk memaksimalkan penyaluran tenaga listrik ke konsumen, maka dibutuhkan suatu perencanaan beban. Perencanaan beban ini dilakukan untuk mengetahui seberapa besar kebutuhan daya listrik ke konsumen. Tujuan dari penelitian ini adalah untuk mengetahui kebutuhan beban sistem interkoneksi Sulselbar dan mengetahui akurasi perencanaan beban dengan menggunakan Jaringan Syaraf Tiruan (JST) backpropagation. Perencanaan beban dalam penelitian ini dilakukan dengan metode Jaringan Syaraf Tiruan (JST) Backpropagation menggunakan toolbox Neural Network pada Matlab R2010a. Dalam perencanaan beban ini menggunakan data beban harian sistem interkoneksi SULSELBAR tahun 2013 dan tahun 2014. Hasil penelitian menunjukkan bahwa kemampuan akurasi dari metode jaringan syaraf tiruan backpropagation lebih akurat daripada metode koefisien (dimana metode ini secara tradisional digunakan di PLN SULSELBAR).Hal ini ditunjukkan dari hasil penelitian pada tanggal 15-21 Juni 2015 error rata-rata terkecil dari metode Jaringan syaraf tiruan backpropagation yaitu pada tanggal 17 Juni 2015 yaitu 2,836911 %, dan error rata-rata terbesar yaitu pada tanggal 21 Juni 2015 yaitu 6,8170112 %. Sedangkan error rata-rata terkecil metode koefisien yaitu pada tanggal 17 Juni 2015yaitu 3,484677 %, dan error rata-rata terbesar yaitu pada tangga 15 Juni 2015 yaitu 8,9368 %.
PENGARUH JUMLAH PIPA PENSTOCK TERHADAP KINERJA TURBIN CROSSFLOW
Authors: Jamal Jamal , Apollo Apollo , Mulid Muhammad Syar , Suryatman Adi
Published: July 2024

Penelitian ini bertujuan untuk mengetahui pengaruh head dan debit terhadap kinerja PLTMH dengan variasi jumlah pipa penstock. Pengujian dilakukan dengan memvariasikan bukaan setiap keran dan jumlah pipa penstock yang beroperasi pada alat uji PLTMH hasil rancang bangun. Hasil pengujian alat uji sistem PLTMH dengan variasi jumlah pipa penstock pada pengujian tanpa beban menghasilkan putaran turbin tertinggi sebesar 1271 rpm dengan pengoperasian 1 pipa penstock dengan kondisi keran pembuangan udara pompa tertutup penuh dan putaran terendah sebesar 92,3 rpm dengan pengoperasian 5 pipa penstock dengan kondisi keran pembuangan udara pompa tertutup Â½ dari tutupan keran. Sedangkan tegangan keluaran tertinggi pada generator sebesar 12,4 Volt dengan daya maksimum yang dibangkitkan sebesar 7,316 Watt dengan pengoperasian 1 pipa penstock pada pengujian berbeban 20 Î© dengan kondisi keran pembuangan udara pompa tertutup penuh.
ANALISIS DESAIN DAN BIAYA MESIN PEMOTONG PADI
Authors: Ka'ka Simon , Sonda Luther , Pase Donatus Langga , Aryasangga M
Published: July 2024

Penelitian ini bertujuan untuk meningkatkan kapasitas panen padi oleh petani dan mengefisienkan kerja para petani padi, serta menghitung biaya produksi pembuatan mesin pemotong padi. Hasil penelitian ini menunjukkan bahwa rata-rata waktu pemotongan pada luas lahan 100 m2 adalah 14,4 menit. Rata-rata waktu pemotongan pada luas lahan 200 m2 adalah 28,9 menit. Rata-rata waktu pemotongan pada luas lahan 300 m2 adalah 44,2 menit,. Waktu yang dibutuhkan untuk memotong padi dengan luas 1 hektar atau 10000m2 adalah 24 jam per hektar atau 3 hari kerja per hektar. Dalam penelitian ini juga dapat diketahui biaya produksi mesin pemotong padi dengan nominal Rp.9.366.210,-. Laba mesin ini adalah 15%, maka harga jual mesin pemotong padi yang kami buat adalah Rp.10.771.141,- dengan komponen mesin dari material ST 37 dan ST 42.
Pengembangan Desain Sepeda Untuk Mahasiswa Dan Pelajar Dengan Metoda Quality Function Deployment (QFD
Authors: Sultan Ahmad Zubair
Published: July 2024

Tulisan ini mencoba menggambarkan bagaimana menterjemahkan actual quality characteristic yang diharapkan oleh konsumen menjadi substitute quality characteristic yang mampu diproduksi oleh produsen melalui metode Quality Function Deployment. Dalam studi yang akan dilakukan, dikaji pengembangan spesifikasi disain sepeda. Metoda QFD merupakan suatu alat yang berguna untuk pengembangan produk. Alat utama dari proses QFD adalah matriks dimana hasil-hasilnya dicapai melalui penggunaan tim dengan mengumpulkan, menginterpretasikan, mendokumentasikan dan memprioritaskan kebutuhan-kebutuhan pelanggan. Untuk dapat digunakan, QFD memerlukan input dari pelanggan, baik pelanggan produk sendiri maupun produk pesaing. Dari House of Quality (HOQ) dengan mendapat input dari pelanggan akan dihasilkan output berupa faktor-faktor kritis dari technical requirement. Selanjutnya output dari HOQ merupakan input dari product design matrix. Output yang dihasilkan diurut berdasarkan prosentasenya. Dengan metode QFD ini dapat disimpulkan bahwa komponen-komponen yang memiliki prosentase terbesar untuk pengembangan desain sepeda untuk mahasiswa dan pelajar adalah yaitu fork depan dengan bobot absolut 4288, frame dengan bobot absolut 3952, setang dan pedal dengan bobot absolute 3778, velg dengan bobot 3556 dan sistem pengereman dengan bobot 2602.
Penerapan Pengolahan Kakao Pascapanen Untuk Mendapatkan Biji Kakao Kering Bermutu Tinggi
Authors: Rusdi Muh , Said Rudianto
Published: July 2024

Kegiatan ini bertujuan untuk meningkatkan pengetahuan tentang tahapan-tahapan pengolahan kakao pascapanen yang harus dilalui untuk mencapai mutu yang telah ditetapkan yaitu Standar Nasional Indonesia (SNI) 01-2323-2000, dan memotivasi pengolah kakao untuk tetap komitmen terhadap mutu pada setiap tahapan pengolahan kakao dan penggunaan peralatan pada masing-masing tahapan tersebut. Metode yang digunakan pada kegiatan ini yaitu menentukan lokasi dan waktu pengabdian, membuat peralatan pengabdian yang berupa buku penyuluhan tentang pedoman pengolahan kakao pascapanen, pelaksanaan kegiatan, dan pemantauan berkelanjutan. Dari hasil kegiatan ini dapat disimpulkan bahwa untuk memperoleh mutu biji kakao seperti yang telah ditetapkan sebelumnya maka pengolahan kakao pasca panen harus dilakukan secara sempurna seperti yang tertera pada buku pedoman kegiatan ini, dan pengolah kakao termotifasi untuk menerapkan pengolahan kakao secara sempurna dan berkesinambungan.
Mengubah Pola Aliran Fluida Dengan Variasi Jarak Vertikal Batang Pengganggu Untuk Meningkatkan Perpindahan Panas Konveksi
Authors: Jamal Jamal
Published: July 2024

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh variasi jarak vertikal antar batang pengganggu silindris terhadap perpindahan panas konveksi dalam saluran segiempatpemasangan batang pengganggu silindris adalah untuk mengubah pola aliran fluidanya menjadi turbulen. Untuk menimbulkan efek turbulensi dilakukan dengan menempatkan batang pengganggu silindris yang disusun bersilangan ditengah saluran berpenampang segiempat. Perpindahan panas konveksi diperoleh dengan mengukur temperatur fluida masuk dan keluar saluran serta temperatur permukaan dinding dalam saluran. Variasi batang pengganggu yang diberikan adalah perbandingan jarak vertikal dengan diameter penghalang (B/D) sebesar 1 dan 1,5. Hasil yang diperoleh adalah semakin besar bilangan reynold bilangan Reyleigh dan Reynolds meningkat, penurunan perbandingan B/D dari 1,5 ke 1 menyebabkan bilangan Reyleigh menurun dan Reynolds meningkat, semakin kecil jarak vertikal antar batang pengganggu, menyebabkan perpindahan panas konveksi semakin meningkat.