bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dielectric PMMA Thin Layers Obtained by Spin Coating for Electronic Applications
Authors: HERBEI Elena Emanuela 
Published: January 2023

Thin polymeric films with dielectric properties become a very important part of today’s devices, being indispensable in industry, electrical applications and not only. Nowadays polymeric materials have attracted attention in academic and industrial research due to the miniaturization at the micro and nanoscale of different electronic devices. Polymers in general are used for their light weight, good mechanical strength, dielectric properties, and optical properties, which make them multifunctional materials.This paper presents research on polymethyl methacrylate (PMMA) thin films obtained by the sol-gel method. The optimization of thin film PMMA layers has been a problem due to the importance of using the polymer in the different electronic domains. Thin films of PMMA with different thicknesses were deposited onto glass and silicon wafers in order to measure dielectric properties. For dielectric properties, the PMMA thin layer was inserted in a metal-insulator-metal structure (MIM). In order to observe the morphology and roughness of thin film, optical microscopy, scanning electron microscopy and atomic force microscopy have proceeded.The dielectric constant (k) was calculated using the electrical capacitance formula. The I-V and C-V curves showed a dielectric behavior with a leakage current between 10-11 and 10-8 A and a constant capacitance in the bias range ± 5 V.
Real-Time Assembly Operation Recognition
Authors: MARIN Florin-Bogdan , GURĂU Gheorghe , MARIN Mihaela 
Published: January 2023

This research is concerned to propose a computer vision algorithm to track manual assembly task. Manual assembly in case of electronics parts are used largely in automotive industry. The phases tracking of assembly could also be used for learning purposes such in case showed in this research, checking the assembly of an electronic educational board. The algorithms used for detection of different components are CNN (Convolutional Neuronal Network) as well as blob detection.
CFD Modeling and Simulation of a Tiny House in Extreme Weather Conditions
Authors: MARIN Florin-Bogdan , MARIN Mihaela 
Published: January 2023

The subject of this research is the use of CFD techniques to identify the impact of using shutters in case of tiny house. Low temperatures and the aim to use as less energy amount as possible need solution. The composites shells allow designing efficient shutters that is isolating in an important manner windows. The CFD software allows to identify the air currents and the areas where heat is lost due to the extreme weather conditions.
The Investigation on Dimensional Stability in Some Sintered Powder Metallurgy Alloys
Authors: MARIN Mihaela , MARIN Florin-Bogdan 
Published: January 2023

The subject of this research was to study the effect of sintering time on the dimensional characteristics of some powder metallurgy (PM) materials. The powders used in this study are prealloyed iron-based powders with Cu, Ni and Mo. The powders were single pressed at 600 MPa and the disc specimens have the dimensions of 8-6 mm. The green compacts were sintering in a laboratory furnace at 1150 ºC for 60, 75 and 90 minutes and air-cooled to room temperature. The density of green and sintered specimens, the porosity and the dimensional changes were evaluated.
A Review on Modified Polymers and Their Composites
Authors: DĂNĂILĂ ȚÎCĂU Irina , APARECI GÎRNEȚ Tamara , DRĂGHICI Sebastian Marian , PĂDURARU Iulian , SĂRACU Gabriel , CÎRCIUMARU Adrian , GOROVEI Mihaela-Claudia 
Published: January 2023

The main objective of this paper is to realise a review on fundamental research regarding the development of new and efficient methods to determine the mechanical, thermal, tribological, and thermo-mechanical properties of composite materials, analysing the results obtained through various graphs and diagrams accompanied by demonstrations and explanations from the specialized literature. Developing new materials or improving the properties of existing materials has been and is a concern of researchers. The chemistry of complex combinations represents one of the most important fields of scientific research, both in terms of theoretical investigations and practical applications. The interest shown towards complex combinations is justified by the contribution brought by the accumulation of knowledge about inorganic chemicals, polymers as well as about epoxy resins and polyvinyl ester, of course also about the design, formation and analysis through mechanical tests (compression, tension, three-point bending), thermal, tribological of composite materials modified with various modifying agents.
ANALISIS PENURUNAN PENDAPATAN NELAYAN TANGKAP DAMPAK PANDEMI COVID-19 DI KELURAHAN MAMBURUNGAN KOTA TARAKAN
Authors: Hatta Djuanda , Muliana Muliana 
Published: January 2023

Pandemi covid-19 menyebabkan penurunan aktivitas ekonomi masyarakat yang secara nyata merambah kepada aktivitas nelayan tangkap. Penelitian ini bertujuan untuk mengetahui perbedaan variabel ekonomi nelayan tangkap sebelum dan selama pandemic dan mengetahui pengaruh jam kerja, permintaan pasar dan biaya terhadap pendapatan nelayan tangkap. Metode yang digunakan adalah uji beda untuk mengetahui perbedaan variabel ekonomi sebelum dan selama pandemi, dan analisis regresi linear berganda dan data panel untuk mengetahui pengaruh jam kerja, permintaan pasar dan biaya terhadap pendapatan sebelum dan selama pandemi. Berdasarkan hasil analisis, diketahui bahwa terdapat perbedaan yang signifikan antara variabel jam kerja, permintaan pasar, modal dan pendapatan pada masa sebelum dan selama pandemic; Variabel jam kerja, modal, dan permintaan pasar sebelum pandemi tidak memiliki pengaruh signifikan terhadap pendapatan nelayan sebelum pandemi, sedangkan selama pandemi, variabel permintaan pasar memiliki pengaruh signifikan terhadap pendapatan nelayan, sedangkan variabel jam kerja dan modal selama pandemi tidak memiliki pengaruh signifikan terhadap pendapatan nelayan; Pada periode secara keseluruhan, sebelum dan selama pandemi, variabel jam kerja berpengaruh secara signifikan, jam kerja, permintaan pasar dan modal, baik sebelum dan selama pandemi tidak memiliki pengaruh yang signifikan terhadap pendapatan nelayan; Penurunan pendapatan nelayan tangkap nyata dipengaruhi oleh kondisi pandemi yang menyebabkan terjadinya penurunan pada variabel ekonomi aktivitas nelayan tangkap yang utamanya disebabkan oleh penurunan mobilitas/aktivitas msyarakat. Kata Kunci: Pandemi; Pendapatan Nelayan; Regresi Berganda; Regresi Data Panel.
PENGARUH MODAL SENDIRI DAN MODAL PINJAMAN UPK MANDIRI PEDESAAN TERHADAP PROFITABILITAS PADA USAHA MICRO KECIL MENENGAH (STUDY KASUS PELAKU USAHA UMKM DI DESA PANJANGREJO PUNDONG BANTUL)
Authors: Rahmawan Zudi , Hermuningsih Sri 
Published: January 2023

Tujuan dari penelitian ini adalah (1) mengetahui dan menganalisis pengaruh modal sendiri tehadap profitabilitas pada studi kasus UMKM didesa Panjangrejo Pundong Bantul (2) megetahui dan meganalisis pengaruh modal pinjaman tehadap profitabilitas pada studi kasus UMKM Desa Panjangrejo Pundong Bantul. Meggunakan pendekatan kuantitatif feplanatory research degan tujuan mejelaskan pengaruh antar variabel melalui pegujian hipotesis yang digunakan untuk membuktikan pengaruh antar variabel menggunakan uji statistik. Populasi dalam penelitian ini adalah semua pelaku UMKM di Desa Panjangrejo Pundong Bantul sejumlah 205 pelaku UMKM. Teknik pengambilan sampel menggunakan metode purposive sampling, dengan rumus slovin didapatkan sejumlah 68 sampel. Namun yang memenuhi kriteria inklusi sebanyak 32 sampel, dikarenakan 27 sampel lainnya tidak mempunyai laporan keuangan. Metode analisis yang digunakan dalam penelitian ini adalah regresi linear berganda dengan I BM SPSS jenis data primer diperoleh melalui teknik dokumetasi dan angket yang telah diuji validitas dan reliabilitasnya. Hasil penelitian ini menunjukkan bahwa modal sendiri tidak berpengaruh signifikan tehadap profitabilitas usaha mikro kecil menengah di Desa Panjangrejo Pundong Bantul dengan nilai koefisien regresi (β1) adalah sebesar 0,0006 dan memiliki nilai signifikansi sebesar 0,9520,05 (hipotesis ditolak). Sedangkan pada variabel modal pinjaman hasil penelitian menunjukkan bahwa modal pinjaman berpengaruh signifikan tehadap profitabilitas usaha UMKM di desa panjangrejo pundong bantul dengan nilai koefisien regresi (β2)adalah sebesar 0,858 dan memiliki nila signifikansi sebesar 0,0000,05 (hipotesis diterima). Kata kunci : Modal sendiri; Modal Pinjaman UPK mandiri; Profitabilitas
ANALISIS FAKTOR YANG MEMPENGARUHI KINERJA MANAJERIAL DENGAN BUDAYA ORGANISASI SEBAGAI VARIABEL MODERATING
Authors: Nainggolan Yohanna Thresia , Devi Charitin , Pratiwi Sulistya Rini , Rahmawati Meylin 
Published: January 2023

Penelitian ini ialah penelitian asosiatif kausalitas. Tujuan penelitian ini menguji pengaruh partisipasi anggaran, gaya kepemimpinan, komitmen organisasi dan motivasi kerja terhadap kinerja manajerial dengan budaya organisasi sebagai variabel moderating. Populasinya ialah Perusahaan Daerah Pasar Kota Medan dengan menggunakan metode sensus yaitu semua populasi menjadi sampel, yaitu Kepala Pasar dan Wakil Kepala Pasar yang ada di 51 Pasar Kota Medan. Jenis data yang digunakan ialah data primer. Penelitian ini menggunakan pendekatan regresi linear berganda. Hasil penelitian memperlihatkan: (1) Secara parsial, partisipasi anggaran dan motivasi kerja berpengaruh positif dan signifikan terhadap kinerja manajerial sedangkan gaya kepemimpinan dan komitmen organisasi tidak berpengaruh signifikan terhadap kinerja manajerial pada Perusahaan Daerah Pasar Kota Medan, (2) Secara simultan, partisipasi anggaran, gaya kepemimpinan, komitmen organisasi dan motivasi kerja berpengaruh signifikan terhadap kinerja manajerial pada Perusahaan Daerah Pasar Kota Medan, (3) Budaya organisasi mampu memperkuat hubungan antara partisipasi anggaran terhadap kinerja manajerial tetapi tidak dapat momederasi hubungan antara gaya kepemimpinan, komitmen organisasi dan motivasi terhadap kinerja manajerial pada Perusahaan Daerah Pasar Kota Medan. Kata kunci: Kinerja Manajerial; Partisipasi Anggaran; Gaya Kepemimpinan; Komitmen Organisasi; Motivasi Kerja dan Budaya Organisasi
GAYA HIDUP, HARGA DAN KUALITAS PRODUK TERHADAP KEPUTUSAN PEMBELIAN SOFA PADA BINTANG JAYA MEBEL BANDUNG
Authors: Tsany Afifah , Suparwo Adi 
Published: January 2023

Penelitian ini bertujuan untuk menguji pengaruh gaya hidup, harga dan kualitas produk terhadap keputusan pembelian sofa di Bintang Jaya Mebel Bandung. Penelitian ini menggunakan prosedur penelitian imajinatif dan menekankan pada sistem kuantitatif. Objek penelitian ini adalah pembeli Bintang Jaya Furniture Bandung dengan sampel 96 responden. Teknik pengujian dalam penelitian ini menggunakan teknik nonprobability sampling dengan metode insidental. Penilaian data yang digunakan pada penelitian ini yaitu penilaian ulang langsung. Hasil penelitian menunjukan secara parsial faktor gaya hidup, harga dan kualitas produk tidak mempengaruhi keputusan pembelian sofa di Bintang Jaya Furniture Bandung. Sedangkan Gaya hidup, harga dan kualitas produk secara simultan mempengaruhi keputusan pembelian sofa di Bintang Jaya Mebel Bandung, dengan kontribusi pengaruh secara menyeluruh sebesar 24,4% sedangakan sisanya 75,6% keputusan pembelian dipengaruhi oleh faktor selain yang diulas dalam penelitian ini. Kata kunci : Gaya Hidup, Harga, Kualitas Produk, Keputusan Pembelian
PENGARUH LIKUIDITAS DAAN KEBIJAKAN DEVIDEN TERHADAP STRUKTUR MODAL PADA PERUSAHAAN MANUFAKTUR YANNG TERDAFTAR DI BURSA EFEK INDONESIA
Authors: Purnomo Suseno Hadi 
Published: January 2023

Penelitian ini bertujuan untuk mengetaui apakah Likuiditas Dan Kebijakan Deviden Berpengaru Teradap Struktur Modal Pada Perusahaan Manufaktur Yanng Terdaftar Di Bursa Efek Indonesia. Pengumpulan data menggunakan data sekunder yanng diperoleh dari data hasil laporan keuangan dengan menggunakan teknik purposive sampling. Populasinya adalah seluruh perusahaan manufaktur yanng terdaftar selama tiga tahun terakhir dari tahun 2017-2019 di bursa efek Indonesia. sedaangkan sampelnya yaitu adalah laporan keuangan likuidtas,kebijakan deviden daan stuktur modal yanng memenuhi krikteria pada tiga tahun terakhir dari 2017-2019 Pada Perusahaan Manufaktur Yanng Terdaftar Di Bursa Efek Indonesia. Hasil data tersebut telah diuji asumsi klasik berupa uji normalitas daan asusmi heterokedastisitasnya. Metode analisis data menggunakan teknik regresi linear berganda.Hasil penelitian menunjukkan bahwa hipotesis yanng diajukan diterima karena menunjukkan hasil uji hipotesis yanng signifikan iniii berarti bahwa Likuiditas daan Kebijakan Deviden berpengaruh secara signifikan terhadap stuktur modal.Kata Kunci : Likuidtas, Kebijakan Deviden , Stuktur Modal.
BAGAIMANA POTENSIAL USAHA WARALABA PHAN PHAN KOTA TARAKAN DALAM BIDANG BARANG TIDAK TAHAN LAMA
Authors: Rahmawati Meylin , Nainggolan Yohanna Thresia , Pratiwi Sulistya Rini , Putri Ferica Christinawati 
Published: January 2023

Penelitian ini bertujuan untuk menganalisis kelayakan finansial waralaba bisnis franchise Phan Phan di Kota Tarakan Data dianalisis dengan menggunakan kriteria investasi yaitu NPV, PI, IRR dan Payback Period. Hasil penelitian menunjukkan usaha ini secara ekonomi layak karena memiliki nilai NPV positif sebesar Rp.883.565.925,-. Profitabily Index sebesar 1,2 dimana menunjukkan bahwa tingkat keuntungan 1,2 kali nilai investasi yang dikeluarkan. Payback Period selama 2 tahun 4 bulan. Angka-angka pada berbagai kriteria investasi tersebut menunjukkan bahwa usaha waralaba Phan Phan layak secara finansial dan layak untuk dijalankan. Payback Period terjadi pada tahun ke 2, yang menunjukkan masih dalam umur proyek. Periode setelah Payback Period maka perusahaan tinggal memperoleh benefit proyek tanpa harus mengembalikan investasi. Upaya peningkatan benefit dilakukan dengan cara promosi penjualan dan stabilitas harga jual. Jika memungkinkan ada kenaikan harga jual secara bertahap dengan tetap memperhatikan kompetisi harga. Kata kunci: Evaluasi Proyek, Kelayakan Usaha, Aspek Pasar, Waralaba
Leadership Effectiveness of Zonal Extension Officers by Extension Agents in Kwara State Agricultural Development Programme, Nigeria
Authors: Abdulrahman Ololade , Ayanda Ibrahim Folorunsho , Nofiu Nofiu Babatunde , Udoma E 
Published: January 2023

In the structure of the Kwara Agricultural Development Programme, the position of Zonal Extension Officers (ZEO) is vital and central to the execution of the extension programmes which are implemented through the frontline Extension Agents. The study examined the leadership effectiveness of the Zonal Extension Officers (ZEOs) in Kwara State Agricultural Development Programme, factors that hindered the leadership effectiveness of ZEOs and the demographic characteristics of ZEOs and Extension Agents (EAs) in Kwara State Agricultural Development Programme. One hundred and thirty (130) EAs and four (4) ZEOs were purposively selected for the study. Primary data were collected with a structured questionnaire and analysed with descriptive statistics while the hypotheses were tested with Pearson Product Moment Correlation and Chi-Square Statistics. Results of the study revealed that 94.6% of the EAs and all four ZEOs acquired tertiary education. The EAs and the ZEOs had an average of 8.01 and 5 years of field experience respectively. Furthermore, 59.2%, 58.5% and 50% of ZEOs were effective only in clarifying the organization’s goals, ineffective in staff motivation and communication respectively. There was a significant relationship between level of education (χ2 = 47.53, p=<0.05), years of experience (r=0.27, p=<0.05) of EAs and perceived leadership effectiveness of ZEOs. Based on the empirical evidence, the ZEOs need to improve their job performances. Extension personnel should acquire tertiary education with cognate field experience before they could function as ZEOs for optimum effectiveness.
Quality Attributes of Suya from Indigenous Goat Breeds (Bucks) in Nigeria
Authors: Niran Ayanniyi , O. O. Olushola , S. A. Abimbade , A. U. Gbanguba , A. Umar , J. N. Eze , A. D. Orimogunje 
Published: January 2023

A study was conducted to evaluate the percentage yield (%), proximate composition and organoleptic evaluation of the freshly prepared Suya product from indigenous goat (buck) breeds in Nigeria .Thigh muscle with average weights of 3.1±0.2 kg was excised from the carcasses of 9 fully matured bucks managed intensively for 90 days. The Chevon were dissected into smaller pieces of 10 cm long. The meat samples were thereafter trimmed of visible fats. They were also finely trimmed to very thin sheets of meat about 0.22 - 0.32 mm in thickness and with a length of about 4.5 cm - 9.3 cm. A total of 99 Suya sticks was prepared with 11 from each buck weighing approximately 88.50 g per stick. Suya ingredients used for the experiment were sourced from Bodija Market, Ibadan. The results showed that weight losses were considerable in all the treatments but the yield was not significantly different (P>0.05) among the breeds. There was also no significant difference in moisture contents among the treatment groups while the protein, ether extract and crude fibre differed significantly across the treatments. Texture of Suya from Sahel bucks with 6.81±0.3 was significantly higher than 5.4±0.3 and 5.5±0.4 for WAD and Red Sokoto bucks respectively. The overall acceptability of Suya from Sahel bucks with 6.24 and Red Sokoto bucks with (6.9±0.1) were similar and most accepted than 5.10 of that from West African dwarf bucks.
Depression Symptoms among Patients with Lung Cancer and their Relations with Demographic Characteristics
Authors: Eajal Mortada , Sachit Kareem 
Published: January 2023

Background: Different psychological symptoms are the most common phenomenon’s that patients with depression and chronic diseases suffer.
Aims of the study: the study aims to assessment of depression symptoms among patients with lung cancer and their relations with demographic characteristics.
Methodology: Descriptive analysis design is used to assess the level of depression among patients with lung cancer and to find out the relationship between the level of depression and age, gender, educational level, occupation, residence, number of admission, marital status, and monthly income. The study period started in September 15th, 2020 to April 15th, 2021 at the Department of Oncology in Al- Diwaniya Teaching Hospital. total of (110) patients are selected of the oncology department in Al-Diwaniya Teaching Hospital. Ten patients were excluded of the study for the pilot study. So the total number of patients participating in the study was (100) patients. The depression Scale is consisting of 7 items self-rated questionnaire that involves two dimensions.
Results: The vast majority of the patients are males (73%), and (85%) are married couples, (48%) the participants are housewives and unemployed, (62%) of lung cancer patients are urban. Concerning the significant differences between depression with patients' age, the study showed that there is a highly significant difference in depression symptoms with regard to older age patients at p-value= 0.001 respectively.
Conclusion: Most lung cancer patients have severe levels of depression. Nearly two-thirds of the patients are older age, with low income, and urbanized.
Recommendations: Encourage further efforts to improve the psychological and emotional status of lung cancer patients; especially by nursing staff after taking chemotherapy treatment and increase the level of awareness for lung cancer patients and their families about the nature and stage of the disease and how to minimize their distress. Also, encourage organized coordination between the oncology center and the Department of Psychiatry in the hospital for giving the required treatment to reduce depression levels
Risk Factors and Symptoms of Ovarian Cancer in Patients Attending Hiwa Oncology/Hematology Hospital in Sulaimaniyah City
Authors: Ibrahim Hadeel , Abbas Amani 
Published: January 2023

Background: Ovarian cancer is responsible for higher mortality rate than any other cancer of the woman genital system.
Aims of the study: this study aims to find the risk aspects and symptoms of ovarian cancer in patients visiting Hiwa Oncology/Hematology hospital in Sulaimaniyah City.
Methodology: This study was a retrospective case-control study conducted in Hiwa Oncology / Hematology Hospital in Sulaimaniyah city, Northern Iraq, the period of the study was 1 / July / 2019 to 1 / march / 2020, based on the recorded database system of Hiwa Oncology / Hematology Hospital from 2013 - 2019, involving 100 diagnosed patients and 200 healthy women as control. Personal information such as age, education, economic status, cigarette smoking, height, weight, diet and eating habits, and used oral contraceptive pills were collected.
Results: The incidence of ovarian cancer in 2013 was 13 cases which increased to 83 cases in 2019. The highest percentage (30%) of patients' age range were 40- 49 years (p = 0.004). Most cases 60% had an insufficient economic state and 33 % of cases were illiterate women. Passive smoking appeared to be more prone to ovarian cancer: especially those with a smoking duration of > 5 years. Additionally, 68% of patients used oral contraceptive pills with a duration range of 1-5 years. Also, a highly significant correlation between diet and ovarian cancer was found in patients. The majority of the patients (76%) complained of abdominal pain and abdominal distension as the first presenting symptoms of ovarian cancer.
Conclusion: This study concluded that age, economic status, educational level, height, passive smoking, weight, diet, and oral contraceptive pill usage were directly accompanied by the possibility of ovarian cancer.
Recommendations: All women especially those after age of 40 years old, should pay attention to education and health awareness including symptoms and causes of ovarian cancer, especially attention to decrease weight and passive smoking and using a healthy diet through decrease consumption the sweets, dairy products, and animal fat and increase consumption of legumes, fish meat, vegetable and fruits.