bluuebunny/crossref_metadata_2025_split huggingface dataset:
Error Analysis of Sine-Cosine Computation using CORDIC Algorithm
Authors: Nandoskar Aarushi , Parihar Narendra , Yadav Surya Prakash , Gupta Shrey , Sahu Shridhar 
Published: November 2022

Background:
Coordinate Rotation Digital Computer (CORDIC) can be used for
computing trigonometric functions like sine and cosine for which it iterates over a for loop and
performs rotation of the input angle.

Methods:
On the basis of the condition, it decides addition and subtraction operations to compute
the sine and cosine values. In general, for each iteration in the CORDIC algorithm, it produces 1
extra bit of accuracy. This paper presents an in-depth survey of the many changes to the CORDIC
algorithm proposed over recent years. An efficient method to calculate the sine and cosine of an
input angle using the CORDIC algorithm with minimum hardware requirement is presented here.

Results:
CORDIC algorithm is implemented for 8 bits, 16 bits and 32 bits input and the average
percentage error obtained as the results are 1.67%, 0.003785% and 0.003290% respectively.

Conclusion:
It can be seen that by increasing the number of bits, the accuracy increases. For a
complete survey, discussions addressing the CORDIC algorithm are also presented.
Role of Gaming Devices Associated With Internet Gaming Disorder in China: Cross-sectional Study
Authors: Li Yifan , Tang Ying , Huang Shucai , Tan Linxiang , Huang Qiuping , Chen Xinxin , Lin Shuhong , Hao Jingyue , Liao Zhenjiang , Shen Hongxian 
Published: November 2022

Background
Chinese gamers use computer and mobile phone games widely. Consequently, concerns regarding the development of internet gaming disorder (IGD) in adolescents have been raised. However, only a few studies have focused on the influence of gaming devices on IGD.

Objective
This study aims to compare sociodemographic information, gaming use characteristics, personality traits, and gaming motivations between computer game users (CGUs) and mobile phone game users (MGUs), as well as identifying IGD predictors.

Methods
This was a cross-sectional study. A total of 3593 internet game players took part in an online survey, which included sociodemographic information, gaming patterns, gaming motivations, the Chinese version of the Video Game Dependency Scale, and the Chinese Big Five Personality Inventory brief version. The population was divided into 2 groups for comparison by mobile phone or computer use, and the IGD population was also compared within the 2 groups.

Results
There were significant differences between the 2 gaming device groups in the time (t2994=7.75, P<.001) and money (t2994=5.11, P<.001) spent on gaming and in internet game addiction scores (t2994=3.68, P<.001). Individuals using different gaming devices had different game motivations and personality traits and preferred different genres of games. Results showed that IGD predictors were different for the 2 groups, for example, strategy (odds ratio [OR] 4.452, 95% CI 1.938-10.227; P<.001) and action shooter (OR 3.725, 95% CI 1.465-9.474; P=.01) games increased the risk for MGUs.

Conclusions
Gaming devices should be considered during early identification, such as long daily gaming time, much money spent on gaming, neuroticism, and conscientiousness. In addition, more research should be conducted on new gaming devices and IGD treatment.
COMMUNICATION MANAGEMENT OF GAMPONG APPARATUS IN COMMUNITY SERVICE
Authors: Fadhli Firdaus 
Published: November 2022

Apparatus Gampong is a social group that functions to help meet the needs of rural communities, given the obligations and rights that have been determined by the Indonesian state. In realizing the welfare of the community, the gampong is a subsystem of government administration. There are various needs of the community that must be met by the gampong, to avoid this interaction conflict, the gampong requires a communication system to maintain a harmonious and structured interaction. Therefore, this study aims to determine the communication management needed by the gampong apparatus in community service and the application of communication management of the gampong apparatus in community service in Samatiga District, West Aceh Regency. The research approach uses qualitative descriptive analytical methods to examine social phenomena on research subjects, namely Keuchik and the Gampong, Tuha Peut, the people in Kuala Bubon Village, Paya Lumpat Village, and Pange Village, as well as the Samatiga Subdistrict Head in Samatiga District. Sources of data obtained through observation, and interviews. The results of the study indicate that communication management facilitates the gampong apparatus in implementing community service activities with a systematic and structured communication flow. The implementation of communication management is carried out by the gampong apparatus with the stages of planning for service activities needed by the community, then determining the implementation of activities, distributing policies for community service activities, and controlling community service activities so that communication flow is maintained in accordance with the service program design that has been formed.
Analisis faktor-faktor yang mempengaruhi tingkat pengangguran (Studi kasus provinsi-provinsi se-Sumatera)
Authors: Wardiansyah M , Yulmardi Yulmardi , Bahri Zainul 
Published: November 2022

Penelitian bertujuan untuk; (1). menganalisis perkembangan tingkat pengangguran di provinsi-provinsi se-Sumatera; (2). menganalisis pengaruh upah terhadap tingkat pengganguran di provinsi-provinsi se-Sumatera; (3). menganalisis pengaruh pertumbuhan ekonomi terhadap tingkat pengganguran provinsi-provinsi se-Sumatera. Hasil penelitian menunjukkan bahwa perkembangan tingkat pengangguran tertinggi diperoleh Provinsi Bengkulu, sedangkan perkembangan tingkat pengangguran terendah di Provinsi Sumatera Selatan. Selanjutnya, hasil analisis regresi menunjukkan bahwa baik tingkat upah maupun pertumbuhan ekonomi berpengaruh negatif dan signifikan terhadap tingkat pengangguran di provinsi-provinsi Se-Sumatera.
Pengaruh pengeluaran pemerintah, inflasi dan angkatan kerja terhadap pertumbuhan ekonomi Indonesia
Authors: Wulansari Dara Ayu , Syaifuddin Syaifuddin , Amzar Yohanes Vyn 
Published: November 2022

Pertumbuhan ekonomi merupakan salah satu indikator dalam menentukan keberhasilan pembangunan suatu wilayah. Pertumbuhan ekonomi Indonesia dipengaruhi oleh beberapa faktor antara lain pengeluaran pemerintah, inflasi dan angkatan kerja. Penelitian ini bertujuan untuk, pertama menganalisis perkembangan pengeluaran pemerintah, inflasi dan angkatan kerja Indonesia, kedua menganalisis pengaruh pengeluaran pemerintah, inflasi dan angkatan kerja terhadap pertumbuhan ekonomi Indonesia. Penelitian ini menggunakan data runtun waktu tahun 1996 – 2014. Metode analisis data yang digunakan yakni analisis regresi linier berganda dengan menggunakan pendekatan model ECM (Error Correction Model). Guna mendapatkan perilaku jangka pendek maupun jangka panjang. Berdasarkan hasil pengolahan data pada tahun 1996-2014 di peroleh hasil bahwa: (1) rata-rata perkembangan variabel pengeluaran pemerintah untuk belanja modal sebesar Rp78,460 triliun, sedangkan veriabel infasi sebesar 11,4% dan utuk variabel angkatan kerja sebesar 1.96 %. Berdasarkan pengolahan data dengan pendekatan ECM di peroleh hasil: (1) Variabel pengeluaran pemerintah dalam jangka pendek dan jangka panjang berpengaruh negatif dan tidak signifikan terhadap pertumbuhan ekonomi. (2) variabel inflasi dalam jangka pendek dan jangka panjang berpengaruh negatif dan signifikan terhadap pertumbuhan ekonomi. (3) variabel angkatan kerja dalam jangka pendek berpengaruh negatif dan tidak signifikan dan dalam jangka panjang berpengaruh positif dan tidak signifikan terhadap pertumbuhan ekonomi. (4) Error corection term bertanda positif dan signifikan mengindikasikan bahwa model yang digunakan valid. Kata Kunci : pengeluaran pemerintah, inflasi, angkatan kerja, pertumbuhan ekonomi, ECM (Error Correction Model). REFERENCES Amir, Amri. 2007. Perekonomian Indonesia Dalam Perspektif Makro. Biografika. Bogor. BPS .2014. Tenaga Kerja 1996-2013. Badan Pusat Statistik. Jakarta. http://bps.go.id. Diakses 30 Juli 2015. Harlik,H.; Amri,A.;Hardiani,H.(2013). Faktor-Faktor yang Mempengaruhi Kemiskinan dan Pengangguran di Kota Jambi. Jurnal Perspektif Pembiayaan dan Pembangunan Daerah. 1(2), 109-120 Juanda, Bambang dan Junaidi. 2012. Ekonometrika Deret Waktu: Teori dan Aplikasi. IPB Press. Bogor. Junaidi, J. (2014). Analisis Hubungan Deret Waktu untuk Peramalan. Jambi. Fakultas Ekonomi dan Bisnis Universitas Jambi Khalwaty, Tajul. 2000. Inflasi Dan Solusinya, PT.Gramedia Pustaka Utama, Jakarta. Mankiw, Gregory. 2007. Makro Ekonomi. Edisi Keenam. Jakarta : Erlangga. Rahayu, Ani Sri. 2010. Pengantar Kebijakan Fiskal. Bumi Aksara. Jakarta. Sukirno, Sadono. 2004. Makro Ekonomi Teori Pengantar. Edisi-3. PT. Raja Grafindo Persada. Jakarta. Todaro, Michel P, Stephen C. Smith. 2000. Pembangunan Ekonomi 1. Edisi-5. Penerbit Erlangga. Jakarta.
Faktor-faktor yang mempengaruhi penyerapan tenaga kerja sektor industri pengolahan di kabupaten/kota di Provinsi Jambi
Authors: Rofiah Rofiah , Aminah Siti 
Published: November 2022

Tujuan penelitian ini untuk menganalisis penyerapan tenaga kerja sektor industri pengolahan di kabupaten/kota di Provinsi Jambi serta faktor-faktor yang mempengaruhinya. Penelitian ini menggunakan data panel dari tahun 2010-2013 di 11 kabupaten/kota di Provinsi Jambi. Analisis data menggunakan regresi data panel dengan metode Random Effect Model. Hasil penelitian menemukan bahwa: 1) rata-rata perkembangan jumlah penyerapan tenaga kerja sektor industri pengolahan sebesar 9,03%; 2) Secara bersama-sama nilai produksi, jumlah unit usaha dan tingkat upah berpengaruh signifikan terhadap penyerapan tenaga kerja sektor industri pengolahan. Secara parsial nilai produksi tidak berpengaruh signifikan, jumlah unit usaha berpengaruh positif dan signifikan dan tingkat upah berpengaruh negatif dan signifikan. Kata Kunci : Industri Pengolahan, Penyerapan tenaga kerja, Nilai produksi, Unit usaha, Upah.
REFERENCES Badan Pusat Statistik. 2009-2013. Jambi Dalam Angka.(Berbagai Kabupaten dan Kota). --------------------------. 2012. Statistik Industri Besar dan Sedang Provinsi Jambi. --------------------------. 2014. Indikator Kesejahteraan Rakyat. Idris,K; Hodijah,S; Syaparuddin,S. (2014). Pertumbuhan ekonomi, kesempatan kerja, kemiskinan dan ketimpangan pendapatan di Provinsi Jambi. Jurnal Paradigma Ekonomika; 9(1) Juanda, Bambang dan Junaidi. 2012. Ekonometrika Deret Waktu: Teori dan Aplikasi. IPB Press. Bogor. Junaidi,J; Zulfanetti, Z; Hardiani,H. (2014). Analisis Kondisi Ketenagakerjaan di Provinsi Jambi. Laporan Penelitian. Fakultas Ekonomi dan Bisnis Universitas Jambi Karib Abdul. 2012. Analisis Pengaruh Produksi, Investasi Dan Unit Usaha Terhadap Penyerapan Tenaga Kerja Pada Sektor Industri Sumatera Barat. Jurnal Ilmiah. Fakultas Ekonomi Universitas Andalas. Mayanti,A; Syaparuddin,S; Ahmad,E. (2013). Analisis PDRB sektor primer dan kesempatan kerja di Kabupaten Bungo. Jurnal Perspektif Pembiayaan dan Pembangunan Daerah; 1(1): 51-62. Sumarsosno, Sonny. 2003. Ekonomi Manajemen Sumberdaya Manusia dan Ketenagakerjaan. Graha Ilmu. Yogyakarta. Syamsuddin. 1998. Produktivitas Tenaga Kerja Di Sektor Industri Dan Faktor- faktor Yang Mempengaruhinya Di Provinsi Jambi. Jurnal Manajemen dan Pembangunan. Universitas Jambi.
Marginal and Internal Misfit of Occlusal Veneers Made in Resin-matrix Ceramics
Authors: Ruggiero MM , Gomes RS , Bergamo ETP , Freitas MIM , Bonfante EA , Del Bel Cury AA 
Published: November 2022

SUMMARY

Objective
Considering that misfit is a significant predictor of the clinical success of indirect restorations, the objective of this study was to evaluate the marginal and internal misfit of two computer-aided design and manufacturing (CAD/CAM) RMC ceramic materials used as occlusal veneers (OVs) of different thicknesses.

Methods and Materials
A CAD model of a mandibular first molar was obtained and OV preparations 0.5-, 1.0-, and 1.5-mm thick were modeled and milled in two different materials (n=10/group): resin nanoceramic (RNC) and polymer-infiltrated ceramic network (PICN). Using the same CAD model, tooth preparations were milled in fiber-reinforced epoxy resin (n=20/thickness). The marginal and internal misfit of the restorations was assessed by X-ray microtomography. The measurements of the marginal gap (MG) and absolute marginal discrepancy were performed in two locations on each slice, whereas internal gap (IG) measurements were performed at ten locations on each slice. The data obtained were analyzed using two-way analysis of variance and Tukey post-hoc tests (α=0.05).

Results
No significant effect was attributable to the material type or material–thickness interaction for the MG, absolute marginal discrepancy (AMD), or IG (p&gt;0.05). However, the thickness significantly affected the IG of the restorations (p&lt;0.05). CAD/CAM RNC and PICN systems presented similar MG and AMD for OVs 0.5-, 1.0-, and 1.5-mm thick. However, the IG varied between thicknesses.
Разработка эффективной технологии осушки газового потока
Authors: Губаева Динара 
Published: November 2022

В настоящее время возрос интерес к природному газу, как к самому экологичному и безопасному топливу, а также как к сырью для промышленных и бытовых нужд. Для эффективного использования природного газа необходимо совершенствование технологий его добычи, переработки, а также транспортировки, что является наиболее значимым в данной системе, так как в этот процесс вложена наибольшая капитало- и фондоемкость. Осушка газов – важная часть в процессе подготовки их к транспорту по магистральным газопроводам, делается с целью предотвращения образования гидратов углеводородных газов и водяных пробок в трубопроводах, что, в свою очередь, может являться причиной задержки транспортировки газа, выходу из строя оборудования, авариям на станциях.
Целью данной работы являлось разработка эффективной технологии осушки природного газа, пригодной для применения в потоке. Для достижения поставленной цели были решены следующие задачи:
- Выявление недостатков существующих методов осушки.
- Определение направления повышения эффективности методов и упрощения оборудования.
- Выбраны современные технические решения основных элементов оборудования.
A 150 años de la publicación de El gaucho Martín Fierro
Authors: Ortale María Celina 
Published: November 2022

Se cumplen 150 años de la publicación de El gaucho Martín Fierro, el primer éxito literario del país. Inicialmente lo memorizaron los paisanos, lo interpretaron actores en los circos y teatros populares y lo recitaron los payadores en versiones que continuaban el derrotero biográfico de los hijos de Fierro. Desde las conferencias en el Odeón la élite lo adoptó como símbolo de argentinidad, ingresó a los programas académicos y su historia fue analizada, reescrita y reapropiada por destacados artistas e intelectuales. En este comienzo del siglo XXI las reelaboraciones literarias y las resignificaciones críticas continúan. Y también las reediciones, teniendo en cuenta la reciente edición de las Obras Completas de José Hernández, producido en la UNLP y publicado por EDUVIM. Desde este contexto, preguntamos: A 150 años de la edición prínceps del poema, ¿cuáles son, para usted, los valores que explican la vigencia del Martín Fierro?
Modelo SERVQUAL para la medición de la calidad del servicio en la hotelería
Authors: Silador Utrera Rafael Raúl , Utrera Velázquez Ana Isabel , Dueñas Figueredo Jorge Osmani , Vargas Alulema Estefania Elizabet 
Published: November 2022

El objetivo de este estudio es aplicar el modelo SERVQUAL para la medición de la calidad del servicio al Hotel Iberostar Daiquirí, donde se detectan falencias en los procesos internos que contribuyen a la insatisfacción en las diferentes actividades ofrecidas por la instalación. La metodología de investigación es exploratoria, correlacional, con la aplicación de pruebas paramétricas ANOVA y POST HOC para el desarrollo de las comparaciones múltiples. Se emplea un diseño cuasi experimental compuesto por cuatro grupos de trabajo y un tamaño muestral de 125 personas. El paquete de datos estadísticos se recopiló a través de las variables expectativas y percepciones, donde se pudo determinar la consistencia interna de la escala implementada con valor de 0,818 mediante el coeficiente Alpha de Cronbach. Sus hallazgos revelan que los turistas argentinos poseen mayores expectativas y complejidad de satisfacción, lo cual permite identificar las dimensiones que más afectan el proceso de servicio. Se demuestra que la herramienta de medición es adecuada y fiable para evaluar la calidad adaptada a cualquier entorno hotelero.
Analysis of the Correlation Between Crimp Parameters and its Effect on Yarn Strength and Hairiness
Authors: Akter Shilpi , Motalab Mohammad Abdul , Helali Maksud 
Published: November 2022

Abstract
The objective of this paper is to analyse the correlation between crimp parameters and the effect of crimps on yarn strength and hairiness. Crimp is an essential property for natural and man-made fibres. Crimps always form with different parameters as they are very much irregular in size and shape. So, if the crimps are regular in size and shape, the end products like yarn and fabric properties will improve. Jute is a natural fibre with no natural crimp. In this research work, the gear crimping method was used as a mechanical crimping system to impart a regular size and shape of crimps into jute sliver. As a result, crimp parameters like the crimp length and crimp angle become uniform, and it is then easy to measure them. Results also showed that the crimp length is directly proportional and the crimp angle is reversely proportional to the number of crimps per unit length, and they are highly correlated. It was also shown that crimp and crimp parameters also affect the yarn strength and hairiness. In conclusion, it is revealed that with an increase in the number of crimps, the yarn strength was increased and hairiness was decreased.
Comparison of the Bending Resistance Properties of Carbon Fiber/Foam Sandwich Structural Composites with Different Laying Angles
Authors: Zhu Lvtao , Cao Shengbin , Zhang Xiaofeng , Shen Wei , Zhu Chengyan 
Published: November 2022

Abstract
This research aimed to explore the influence of fiber laying angles on the bending resistance properties of carbon fiber/foam sandwich structural composites. Four kinds of composites with the following laying angles: [0°]8, [0°/45°/90°/−45°]s, [0°/90°]4 and [45°/−45°]4 were prepared and tested in three-point bending experiments. The results obtained showed that the bending resistance performance was the best when the laying angle was [0°]8, while it was the worst when the laying angle was [45°/−45°]4. Besides, it was found that the tensile performance was the best when the fibers were arranged in the 0° direction when the strength utilisation rate was the highest. In addition, by observing the failure morphologies of the composites, the delamination and foam cracking were found in the four groups of composites. In contrast, the phenomenon of significant fracture was found on composites with a laying angle of [45°/−45°]4 only, indicating it had a poor bending resistance performance.
Modification of PP Fabric with Polyols by the Plasma Composite Technique
Authors: Ma Wen-Xiao , Hu Bing-Nan , Bai Yun 
Published: November 2022

Abstract
In order to endow polypropylene (PP) fabric with hydrophilic and antistatic properties, PP was grafted with polyols (sorbitol, maltitol and polyethylene glycol (PEG)) by the oxygen plasma treatment and subsequent bridging process, where ethylene glycol diglycidyl ether (EGDE) and trimethylolpropanetris (2-methyl-1-aziridinepropionate) (TTMA) were used as crosslinkers. The highest grafting rate was 7.48%. The chemical structure changes were analysed by Fourier transform infrared spectroscopy (FTIR). A scanning electron microscope (SEM) was used to observe the changes in polypropylene fiber surface morphology. The hydrophilicity was characterized by testing loose fiber suspension and moisture retention. The modified PP was more easily immersed in water and the desorption behaviour continued for 2h without equilibrium. The half-life of the grafted PP was reduced to 7s. The results showed that the modified PP with polyols possessed hydrophilicity and antistatic properties.
Vertical Breast Displacement in Asian Women During Exercise: influence of Bra Type, Size and Different Parts of the Breast
Authors: Sheng Xinyang , Chen Xiaona , Lake Mark John 
Published: November 2022

Abstract
Asian women have smaller breast sizes and greater breast density, which suggests specific research on their breast kinematics and biomechanics. To investigate vertical breast displacement of Asian women among exercise modalities (rope skipping, walking, jogging, running) in different support conditions (wearing everyday bra or sports bra), and assess the motion between different parts of the breast, seven participants were selected to participate in this study. Five infrared markers were placed on each of their left breasts, and a three-dimensional motion capture system (NDI Optotrak Investigator) was used to collect the data on vertical breast displacement during walking (5 km/h), jogging (7.5 km/h), running (10 km/h) and rope skipping (2 Hz). No significant difference was found in the vertical displacement of different parts of the breast in the two bra conditions. Also, there was significant difference in vertical breast displacement among rope skipping, jogging and running. Breast size did not significantly affect its vertical displacement. The smaller, denser breast appears to reach a threshold of vertical displacement that is similar at high severities of dynamic exercises (jogging, running and rope skipping). The results might be useful for designing special sports bras for Asian women with small breasts or rope skipping participants to improve the shock absorption function.
Coupling Characteristics of Needles and Backing Cloth During the Carpet Tufting Process
Authors: Xu Yang , Huang Shuang , Sheng Xiaowei , Zhijun Sun 
Published: November 2022

Abstract
Focusing on the needle and backing cloth on a tufting machine type DHG801D-200, a finite element model was built using ABAQUS/Explicit software. The tufting processes, in which the individual tufting needles and 1/10 needle modules puncture the polypropylene woven and nonwoven fabrics (hot-air bonded nonwoven and thermo-calender bonded nonwoven), were simulated, respectively. Finally, the needle forces were estimated, and the deformations and stress field distribution of the backing cloth at different times were analysed.
Shrink-Proof Treatment Parameter Optimisation of Cashmere Yarn
Authors: Li Long , Wang Wei , Zhang Xian , Wu Lei , Yang Dan 
Published: November 2022

Abstract
Cashmere fiber has soft hand and good elasticity. However, it exhibits shrink because of its scale. In this work, cashmere yarn (38.26 tex) was treated using NaCl-KMnO4 to reduce the shrink of cashmere yarn. Orthogonal design and fuzzy comprehensive evaluation were used for optimizing treating parameters. Experimental results showed that the yarn shrink percentage of treated yarn was 0.56% which was less than that untreated yarn, and the treated yarn strength had a little drop compared with untreated yarn. The fiber scale outline of treated yarn could be observed by SEM, but the scale edge is blunt and irregular.