bluuebunny/crossref_metadata_2025_split huggingface dataset:
Profile Matching Untuk Sistem Pendukung Keputusan Pemilihan Vendor Maintenance Server dan Jaringan
Authors: Nisa Khoirun , Sutinah Entin 
Published: October 2020

AbstrakMemilih pemasok yang tepat atau vendor diantara pemasok yang ada adalah isu penting bagi top manajemen. Proses penentuan vendor pada PT. Gema Graha Sarana dilakukan secara manual, yang diawali dengan pengumpulan informasi melalui presentasi dari setiap calon vendor. Setelah itu dilakukan rapat pimpinan untuk membahas tentang kelebihan dan kekurangan masing-masing vendor. Rapat pimpinan perusahaan menggunakan sistem votting sehingga cara tersebut dinilai masih kurang objektif dan tidak menutup kemungkinan penilaian dilakukan secara subjektif. Saat ini sudah berkembang pesat teknologi dalam segala bidang salah satunya teknologi dalam penentuan pengambilan keputusan, oleh karena itu untuk membantu dalam pemecahan masalah tersebut perlu dilakukan sebuah pendekatan dengan menggunakan sebuah metode sistem pendukung keputusan salah satu nya dengan menggunakan metode Profile Matching dengan tahapan yaitu menentukan kriteria, perhitungan pemetaan gap, melakukan pembobotan, perhitungan core factor dan secondary factor, perhitungan nilai total, dan perhitungan untuk menentukan perangkingan.Tujuan dari penelitian ini adalah menentukan vendor yang cocok agar mampu menyediakan layanan jasa maintenance server dan jaringan sesuai kebutuhan. Sehingga dari tahapan-tahapan tersebut diperoleh sebuah hasil keputusan untuk memilih vendor yang akan diajak kerja sama dalam melakukan pekerjaan maintenance server dan jaringan dengan memilih PT. Nusa Network Prakarsa. Kata Kunci: Pemilihan Vendor, Profile Matching, Sistem Pendukung Keputusan. AbstractSelecting the right supplier or vendor among existing suppliers is an important issue for top management. The process of determining vendor at PT. GemaGrahaSarana, Tbk is done manually, which begins with the collection of information through the presentation of each potential vendor. After that conducted a leadership meeting to discuss the advantages and disadvantages of each vendor. Company leadership meeting using the voting system so that way is considered still less objective and did not rule out the assessment is done subjectively. Nowadays, technology has been developed in all fields, one of them is technology in determining decision making, therefore to assist in solving the problem it is necessary to do an approach by using a method of decision support system of one of them by using method matching profile with stages that is Determining Criteria , Gap Mapping Calculation, Weighting, Calculation of Core Factor and Secondary Factor, Total Value Period, and Calculation for Determining Ranking. The purpose of this research is to determine the suitable vendors to be able to provide server and network maintenance services as needed. So from these stages obtained a decision to select a vendor who will be invited to work together in doing maintenance work server and network by choosing PT. Nusa Network Prakarsa. Keywords: Vendor Selection, Profile Matching, Decision Support System.
Penerapan Metode Topsis Pada Peningkatan Kinerja Karyawan
Authors: Palasara Nico Dias , Baidawi Taufik 
Published: October 2020

AbstrakHasil dari kinerja karyawan dapat dijadikan sebuah peluang untuk para pegawai dan perusahaan dalam melihat kemampuan serta potensi dari sisi internal. Dari hasil tersebut perusahaan dapat mengetahui dan melihat tingkat kinerja dari seluruh karyawan yang ada. Dengan standar penilaian tingkat kinerja karyawan yang sudah dibuat oleh perusahan sebanyak 14 kriteria. Namun, keputusan akhir biasanya melibatkan penilaian manusia yang besar. Kekurangan penilaian tanpa adanya metode pendukung keputusan maka seperti penilian tradisional, metodenya adalah manusia yang dikenal rentan terhadap bias, meskipun pimpinan yang lebih berpengalaman namun ada penilaian yang subjektif. Maka dari itu penulis memasukkan metode sistem pendukung keputusan agar penilaian yang dihasilkan dapat memberikan nilai objektif. Maka penulis mencoba mengambil sebuah metode TOPSIS yang diharapkan dapat menyelesaikan dan memberikan sebuah solusi dari permasalahan yang ada. Topsis menggunakan indikator kriteria dan variable alternatif sehinga dapat membantu untuk menentukan keputusan, komputasinya efisien, perhitungan komputasinya lebih efisien dan dan cepat, mampu dijadikan sebagai pengukur kinerja alternatif dan juga alternatif keputusan dalams sebuah bentuk output komputasi yang sederhana, dan dapat digunakan sebagai metode pengambilan keputusan yang lebih cepat. Keywords: TOPSIS, Kinerja Karyawan, Pendukung Keputusan AbstractThe results of employee performance can be used as an opportunity for employees and companies to see their internal capabilities and potential. From these results the company can find out and see the level of performance of all existing employees. With a standard assessment of the level of employee performance that has been made by the company as many as 14 criteria. However, the final decision usually involves a large human assessment. Lack of assessment without decision support methods, such as traditional assessment, the method is that people are known to be vulnerable to bias, even though the leaders are more experienced but there are subjective judgments. Therefore the author includes a decision support system method so that the resulting assessment can provide objective value. So the author tries to take a TOPSIS method which is expected to solve and provide a solution to the existing problems. Topsis uses alternative criteria and variable indicators so that it can help to determine decisions, efficient computation, computation calculations are more efficient and fast, able to be used as an alternative performance gauge and also an alternative decision in a simple form of computational output, and can be used as a decision making method faster. Keywords: TOPSIS, Employee Performance, Decision Support
Mechanical bonding in cold roll-cladding of tri-layered brass/steel/brass composite
Authors: Vaseghi Majid , Zand Hossein , Sameezadeh Mahmood 
Published: October 2020

Abstract
In this paper, brass/steel/brass clad-composite was fabricated using a cold roll-bonding process. Composite sheets were roll-bonded at reduction ratios between 37 and 72% at room temperature from strips of 150 mm in length and 30 mm wide, in one pass without lubrication. The threshold deformation for successful bonding was at a thickness reduction of 48% and peel strengths of the bonds were measured to be approximately 12 N cm-1, and it was found to escalate with an increase in the rolling reduction. The optimum reduction in thickness was ~66% wherein the peel strength was ~33 N cm-1. Various techniques such as optical and electron microscopy were implemented to analyze and investigate the effects of the reduction in thickness and the joining mechanism. The results showed that an increased reduction in thickness in rolling leads to an increase in the joining strength. Furthermore, increasing the brass plate thickness negatively affects the joining strength. A Cu peak on the peeled-off steel surface and the presence of Fe on the peeled-off brass surface strongly suggest that the major bonding between brass and steel was mechanically induced metallurgical bonding.
The influence of multi-pass friction stir processing on microstructure and sliding wear behavior of Cu/ZrO2 surface composite
Authors: Rabiezadeh Amin , Ghafaei Saman 
Published: October 2020

Abstract
In this study, copper/ZrO2 surface composites were produced using nano-particles via friction stir processing in order to enhance surface tribological properties. The present research aimed to generate copper matrix composites and analyze the effect of processing parameters on the evolving microstructure, microhardness, and wear-resistance behavior. It is worth noting that the processed composite layer had more homogeneity in the four-pass process. In comparison to the base metal and non-powder samples, it had higher mechanical characteristics. Based on the results, the highest recorded hardness, approximately 288 HV, was found in a four-pass state with powder. Remarkably, it showed a double peak compared to 80 HV in the base metal. The lowest friction coefficient of four-passes with the powder sample was about 0.47, which showed a significant efficiency in comparison to the friction coefficient of base metal that was about 0.81.
Upaya Meningkatkan Hasil Belajar Pendidikan PKn melalui Pembelajaran Learning Community pada Siswa Sekolah Dasar
Authors: Ahmad Kamaluddin , Hidayat Aenul 
Published: October 2020

Rendahnya hasil belajar dipengaruhi oleh factor interen dan eksteren yang ada pada diri siswa, sisi lain pembelajaran PKn yang dinamis membutuhkan metode pembelajaran yang efektif yang bisa merubah tingkah laku dan prestasi belajar siswa. Tujuan dalam artikel ini untuk mengtahui upaya meningkatkan hasil belajar pendidikan PKn melalui pembelajaran learning community pada siswa sekolah dasar. Penelitian ini merupakan penelitian research action class room. Berdasarkan hasil penelitian menunjukkan bahwa dengan menerapakan pembelajaran learning community dapat meningkatkan hasil belajar siswa sekolah dasar, dengan hasil tindakan pada siklus I ketuntasan belajar 56,76 % dan nilai rata-rata 69,83, dan pada siklus II mengalami peningkatan tetapi belum memenuhi indikator keberhasilan yaitu ketuntasan belajar 70,27% dengan nilai rata-rata 84,08. Siklus III mengalami peningkatan yang sangat siknifikat yaitu 89,20% dengan nilai rata-rata 84,08. Dengan demikian setiap sikus mengalami peningkatan yang signifikat dan memenuhi indikator keberhasilan (nilai klasikal) dari siklus sebelumnya. Low learning outcomes are influenced by internal and external factors that exist in students, on the other hand, dynamic Civics learning requires effective learning methods that can change student behavior and learning achievement. The purpose of this article is to determine the efforts to improve the learning outcomes of Civics education through learning community learning for elementary school students. This research is a research action class room. Based on the results of the research shows that by applying learning community learning can improve learning outcomes of elementary school students, with the results of action in cycle I learning completeness 56.76% and an average value of 69.83, and in cycle II has increased but has not met the indicators of success. namely mastery learning 70.27% with an average value of 84.08. Cycle III experienced a very significant increase, namely 89.20% with an average value of 84.08. Thus, each cycle experienced a significant increase and fulfilled the success indicator (classical value) from the previous cycle.
Proses Penyelesaian Sengketa Pembagian Kasus Harta Gono Gini Akibat Perceraian Pasangan Suami Istri di Pengadilan Agama Mataram
Authors: Muttaqin Zedi , Usqak Siti Urwatul 
Published: October 2020

Abstrak: Tujuan penelitian ini adalah untuk mengetahui tugas dan peran pengadilan agama dalam menyelesaikan kasus harta gono gini sebagai upaya penyelesaian konflik keluarga pasca bercerai suami dan istri (studi kasus di Pengadilan Agama Mataram). Penelitian ini adalah penelitian kualitatif dengan pendekataan deskriptif. Subyek penelitian atau informan dalam penelitian ini adalah Kepala Pengadilan Agama, Hakim, dan Panitera Pengadilan Agama Mataram. Metode pengumpulan data yang digunakan adalah Observasi, wawancara dan dokumentasi. Sumber data yang digunakan yaitu sumber data primer, Teknik analisis data adalah reduksi data, penyajian data, dan menarik kesimpulan. Hasil penelitian yang diperoleh bahwa tugas dan peran pengadilan agama mataram dalam menyelesaikan kasus harta gono gini yaitu : Tugas dan Peran Pengadilan Agama Mataram yaitu menerima, memeriksa, memutuskan, mengadili dan menyelesaikan perkara yang diaajukan oleh para pihak penggugat., dan Proses penyelesaian dan pertimbangan hakim dalam menentukan pembagian harta gono gini yaitu : Hakim dalam proses pembagian harta bersama yaitu membagi harta bersama tersebut sama-sama ½ (seperdua) penggugat dan tergugat sedangkan hakim dalam mempertimbangkan pembagian harta gono gini atau harta bersama tidak mesti terpaku terhadap UU tetapi sebagai hakim proses pertimbangan pembagian harta gono gini harus berdasarkan rasa keadilan karna hakim sendiri mempunyai asas kontralegen.Abstract: The purpose of this study was to determine the duties and roles of religious courts in resolving inheritance cases as an effort to resolve family conflicts after divorce (a case study at the Mataram Religious Court). This research is qualitative research with a descriptive approach. The research subjects of the study were the Head of the Religious Courts, Judges, and Registrars of the Mataram Religious Court. Data collection methods used were observation, interviews, and documentation. Sources of data used were primary data sources; data analysis techniques were data reduction, data presentation, and concluding. The results showed that the duties and roles of the Mataram Religious Court in resolving the case of the Mataram Religious Court are the Duties and Roles of the Mataram Religious Court such as receiving, examining, deciding, adjudicating and completing cases filed by the plaintiffs, and the process of settlement and judges' considerations. In determining the distribution of assets of inheritance, the judges in the process of sharing joint assets are dividing the joint assets together ½ (half) of the plaintiff and the defendant, while the judge in considering the distribution of assets or joint assets does not have to be fixated on the law but as a judge in consideringthe process of the distribution of assets must be based on a sense of justice because the judges themselves have theprinciple of contralegem.
Accounting of geomechanical layer properties in multi-layer oil field development
Authors: Galkin Sergey , Krivoshchekov Sergey , Kozyrev Nikita , Kochnev Alexander , Mengaliev Alexander 
Published: October 2020

Amid the ever-increasing urgency to develop oil fields with complex mining and geological conditions and low-efficiency reservoirs, in the process of structurally complex reservoir exploitation a number of problems arise, which are associated with the impact of layer fractures on filtration processes, significant heterogeneity of the structure, variability of stress-strain states of the rock mass, etc. Hence an important task in production engineering of such fields is a comprehensive accounting of their complex geology. In order to solve such problems, the authors suggest a methodological approach, which provides for a more reliable forecast of changes in reservoir pressure when constructing a geological and hydrodynamic model of a multi-layer field. Another relevant issue in the forecasting of performance parameters is accounting of rock compressibility and its impact on absolute permeability, which is the main factor defining the law of fluid filtration in the productive layer.
The paper contains analysis of complex geology of a multi-layer formation at the Alpha field, results of compression test for 178 standard core samples, obtained dependencies between compressibility factor and porosity of each layer. By means of multiple regression, dependencies between permeability and a range of parameters (porosity, density, calcite and dolomite content, compressibility) were obtained, which allowed to take into account the impact of secondary processes on the formation of absolute permeability. At the final stage, efficiency of the proposed methodological approach for construction of a geological and hydrodynamic model of an oil field was assessed. An enhancement in the quality of well-by-well adaptation of main performance parameters, as well as an improvement in predictive ability of the adjusted model, was identified.
Features of the underground storages construction in depleted oil and gas condensate fields
Authors: Gasumov Ramiz , Gasumov Eldar , Minchenko Yulia 
Published: October 2020

The paper considers the features of the underground storages (US) construction in depleted oil and gas condensate fields (DOGCFs). The requirements for the structure of the formation, corresponding to the parameters of the object for possible US creation are presented.
The influence of geological, hydrogeological, mining and technical rock formation conditions on the reliability and tightness of underground storages, including underground gas storages, has been evaluated. The necessary conditions for the US design are analyzed at the example of the Ach-Su oil and gas condensate field, in the presence of a well-explored trap with acceptable parameters for the construction of an underground storage. An important aspect is the geological conditions that meet the criteria for selecting the object: the required structure, the absence of fracturing faults, high reservoir properties of the formation, a sufficient volume of the deposit for the storage. Geological conditions lay the basis for determining the individual characteristics of the US construction technology at each DOGCF. The refined results for the current gas-saturated pore volume and the rate of pressure drop in the formation are presented, which makes it possible to select improved technological indicators in the course of operation of the created US. In order to select the optimal option for the design and construction of the US, the results of economic and geological scenarios analysis were studied concurrently with the capabilities of the technological operation of the object and transport system, which can ensure the maximum daily production of the storage.
Processing of platinum group metal ores in Russia and South Africa: current state and prospects
Authors: Aleksandrova Tatyana , О’Connor Cyril 
Published: October 2020

The presented study is devoted to a comparative review of the mineral raw material base of platinum group metals (PGMs) and technologies of their processing in South Africa and Russia, the largest PGM producers. Mineralogical and geochemical classification and industrial value of iron-platinum and platinum-bearing deposits are presented in this work. The paper also reviews types of PGM ore body occurrences, ore processing methods (with a special focus on flotation processes), as well as difficulties encountered by enterprises at the processing stage, as they increase recovery of the valuable components. Data on mineralogical features of PGM deposits, including the distribution of elements in the ores, are provided. The main lines of research on mineralogical features and processing of raw materials of various genesis are identified and validated.
Sulfide deposits are found to be of the highest industrial value in both countries. Such unconventional PGM sources, as black shale, dunites, chromite, low-sulfide, chromium and titanomagnetite ores, anthropogenic raw materials, etc. are considered. The main lines of research that would bring into processing non-conventional metal sources are substantiated.
Analysis of new processing and metallurgical methods of PGM recovery from non-conventional and industrial raw materials is conducted; the review of existing processing technologies for platinum-bearing raw materials is carried out. Technologies that utilize modern equipment for ultrafine grinding are considered, as well as existing reagents for flotation recovery; evaluation of their selectivity in relation to platinum minerals is presented.
Basing on the analysis of main technological processes of PGM ore treatment, the most efficient schemes are identified, i.e.,gravity and flotation treatment with subsequent metallurgical processing.
Reliability and Feasibility of the Memory Associative Test TMA-93
Authors: Franco-Macías Emilio , Rodrigo-Herrero Silvia , Luque-Tirado Andrea , Méndez-Barrio Carlota , Medina-Rodriguez Manuel , Graciani-Cantisán Eugenia , Sánchez-Arjona María Bernal , Maillet Didier 
Published: October 2020

Background: Memory tests focused on binding may be more sensitive to diagnose Alzheimer’s disease (AD) at an early phase. TMA-93 examines relational binding by images. Objective: Evaluate the reliability (internal consistency and inter-rater and test-retest reliability) and feasibility of the TMA-93 in a clinic setting with low-educated individuals and limited face-to-face time per patient. Methods: The study was undertaken in a neurology outpatient clinic of a hospital in Southern Spain. The internal consistency of the TMA-93 was estimated in 35 patients with amnestic mild cognitive impairment (aMCI) and 40 healthy controls (HCs). The inter-rater reliability (by two raters) and feasibility (by recording the percentage of participants who completed the test, and by timing the administration time) were evaluated in HCs ( n = 16), aMCI patients ( n = 18), and mild dementia patients ( n = 15). The test-retest reliability for the TMA-93 total score was studied in 51 HCs tested by the same examiner 2–4 months apart. The internal consistency was estimated by Cronbach’s alpha. The inter-rater and test-retest reliability was quantified by the intraclass correlation coefficient (ICC). The administration time was compared by diagnosis. Results: The internal consistency was “optimal” (Cronbach’s alpha = 0.936). The test-retest reliability was “good” [ICC = 0.802 (CI 95%  = 0.653–0.887)]. The inter-rater reliability was “optimal” [ICC = 0.999, (CI 95%  = 0.999–1)]. All participants completed the test. The administration time ranged from less than 3 min in HCs to 6 min in aMCI patients, and 7 min in mild dementia patients. Conclusion: Good feasibility and reliability support using the TMA-93 for examining visual relational binding, particularly in the context of low-educational attainment and limited time per patient.
Survival rate of very low birth weight infants over a quarter century (1994–2019): A single-institution experience
Authors: AlQurashi M.A. 
Published: October 2020

BACKGROUND: Newborn infants with birth weight less than 1500 grams defining very low birth weight (VLBW) constitute 1.2–1.5% of total live births and 15–20% of all admissions to neonatal units. Advances in antenatal care, care at delivery, and neonatal practice over the past few decades, have substantially improved outcomes in VLBW infants, and reduced neonatal mortality. METHODS: A retrospective single tertiary care center cohort study of VLBW infants with gestational age between 23–33 weeks admitted to the neonatal intensive care unit (NICU) in King Abdulaziz Medical City, Jeddah (KAMC-J) between January 1, 1994, and December 31, 2019 (26 years). The trends of survival of VLBW infants and major changes in clinical practice of premature care over a period of 26 years were evaluated. RESULTS: Over a period of 26 years, 1,247 VLBW infants were admitted to the NICU that represents 1.43% (1.25–1.83%) of total live births. 50.80% ( n = 634) were male, whereas the 49.2% ( n = 613) were female. Among them, 1013 (81.2%) were discharged home alive. There was a significant and progressive improvement in the survival rate of VLBW infants over a 26-year period from 66.83% in period 1 (1994 –1998) to 90.0 % in period 5 (2014 –2019), which represents a 34.67% total improvement rate. The improvement in survival rates was observed in all gestational ages between 23–33 weeks, particularly in infants weighing ≤750 grams and ≤1000 grams, and with gestational age between 23–27 weeks. Infants with a gestational age of ≤26 weeks and birth weight ≤750 grams delivered by cesarean section had a higher survival rate. Moreover, female infants with a gestational age of ≤26 weeks and birth weight ≤750 grams had a higher survival rate compared to males but not statistically significant. CONCLUSIONS: The survival rate of VLBW infants had improved significantly over the past 26 years (1994 –2019). This is attributed mainly to the improved survival of ELBW infants (<1000 grams) and gestational age of ≤26 weeks.