bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of Near-Field Beamforming for Large Intelligent Surfaces
Authors: Hu Sha , Wang Hao , ilter mehmet 
Published: July 2022

<p> In this paper, we propose a novel near-field beamforming (BF) design for a Large Intelligent Surface (LIS) implemented as a discretized two-dimensional (2D) antenna array. We firstly investigate the definitions of near-field and far-field regions of the LIS, and determine the Fraunhofer distance which scales up linearly in the surface-area. Then, we derive the Fresnel near-field region where variations of amplitudes and angles are both negligible, as long as the distance from a user-equipment (UE) to the LIS is larger than a threshold that scales up linearly in the diameter of the LIS. Hence, in the majority region of near-field, only phase variations worsen the quality of received signal and yield significant losses of array gains. Following this observation, we present a decomposition theorem proving that in the Fresnel region, the optimal three-dimensional (3D) near-field BF can be decomposed into a conventional 2D far-field BF and a one-dimensional (1D) near-field BF. The 2D far-field BF compensates phase variations caused by the azimuth and elevation angles, while the 1D near-field BF compensates phases variations caused by distance differences among the UE and antenna-elements on the LIS. Such a 2D+1D BF design is fully compatible with existing 2D far-field BF schemes, and the 1D near-field BF can be treated as an additional step. From this perspective, we further derive an optimal codebook design of the 1D near-field BF with Lloyd-Max method. Numerical results show that the proposed 2D+1D BF is effective to recover losses of array gains in the near-field, and also robust against distance mismatches. Moreover, with a few optimized quantization points in the codebook, the 1D near-field BF performs close to optimal. </p>
Design and implementation of proximal planning and control of an unmanned ground vehicle in the dynamic environment
Authors: Khan Subhan , Guivant Jose 
Published: July 2022

<p>This paper presents a novel proximal planning and control (PPC) formulation for an unmanned ground vehicle (UGV) affected by skidding and slip disturbances. The control approach also considers the presence of moving and static obstacles in the context of operation. The PPC technique is divided into three parts; first, a nonlinear model predictive control (NMPC) based path-planner is designed to periodically generate an updated feasible trajectory to prevent the vehicle from colliding with other objects from start to the goal pose. In particular, a proximal averaged Newton-type method for optimal control (PANOC) is used to design NMPC. Second, evolutionary programming (EP) based kinematic control (KC) is designed to generate the velocity commands. Third, a dynamic control law is proposed with an extended state observer (ESO) to estimate the effects of bounded but unknown perturbations. Finally, simulations are performed in the presence of linear and nonlinear trajectories of moving obstacles (MO) and static obstacles (SO) to verify the performance of the proposed scheme. Additionally, we have investigated and confirmed that the proposed PPC could run in real-time on a CPU with limited resources. </p>
ERASMUS PROJECT VIRSTEM INTERACTIVE TOOLS FOR EDUCATION
Authors: Timinskas Edgaras , Makuteniene Daiva , Ovtšarenko Olga 
Published: July 2022

In a modern education, the use of modern technologies is dictated by the time requirement to provide all spheres of life with competent specialists. This article provides an overview of the first year of the project work of an international team consisting of teachers and researchers, software developers and modelers - specialists in BIM environment from different countries of the Baltic region, which was devoted to finding opportunities to improve the efficiency of teaching technical disciplines, integrating modern technological disciplines and virtual and augmented reality solutions with using the best traditional teaching methods, developing new approaches in educational and methodological work. To create a modern learning environment and support the independent work of students of construction specialties in an open online course "Basic Engineering Graphics", interactive teaching material with visualization and integration of BIM is used: simulators of digital objects, interactive exercises, and tests. The free online course is designed for undergraduate students of construction specialties, both full-time and part-time studies, as well as for the professional development of specialists. Involving the student in an active educational process to gain new knowledge is a priority to ensure the effectiveness of independent distance learning. The statistical data presented in the article provide interesting material for analyzing the effectiveness of teaching methods, demonstrate the need to change the approach to using traditional teaching methods, and integrate virtual technologies with the best traditional methods of technical teaching. The use of interactive objects, feedback with recommendations for further progress cannot fully replace the teacher and mentor but helps the student to plan their learning and is a very effective preparation for the next stage of learning.
“MATERIAL DEMO LAB” PROCESS - TRAINING PROCESS FOR BUSINESS MODEL & DESIGN METHODS FOR MATERIAL SCIENTISTS
Authors: Schöne Jasmin , Sägebrecht Florian , Opeskin Lenard , Leopold Anne-Katrin , Krzywinski Jens , Schwurack Stefan , Kunath Martin , Schmiedgen Peter 
Published: July 2022

Up to 70% of all new products are based on new materials and there is considerable scientific and economic potential in combining different material and technology domains in particular. Former research projects have shown that material scientists face several challenges in the later stages of the innovation process, especially in market placement meeting the needs of business customers and other stakeholders. Problems are e.g. too complicated communication of their work, missing understandable business cases, and uninspiring demonstrators. These developing issues could already be prevented in an early TRL level by using and combining product design and business modeling methods. The paper presents the design of the innovation process of competence acquisition of business model development and design development methods for material scientists. The innovation and training process is designed to overcome the "Valley of Death", i.e., the unsuccessful transfer of research results to the to market maturity. The goal of the process for the material scientists is to a) reflect and structure own competencies b) to make unique selling propositions comprehensible and c) to generate and strengthen impact. In addition, the observed limitations are described, which were observed during the implementation of the process in two test groups composed by scientists from three different institutes and research areas in materials science to further refine the field. The findings are based on a) literature reviews and b) observations during the design, implementation and evaluation of the process. Part of the core findings is the increased acceptance of the methods applied in the innovation process, if they primarily address technology development. A more challenging acceptance in the field of research communication is the development of commercial business models. During the development and testing of the innovation process, the stages of the Delft Design Guide as one popular handbook in the field. The development phases were used as a guidance and orientation.
pengenlan angka tulis tangan mengunakan metode backpropagation studi kasus lembar c1 pada rekapitulasi pemilihan umum
Authors: Yusuf Abi daud , Kurniawan Tri Basuki , Surya Negara Edi 
Published: July 2022

Tujuan dari penelitian ini adalah untuk menganalisis dan menerapkan machine learning. Penulisan penelitian ini bertujuan untuk mengenali angka yang berbeda beda pada hasil rekapitulasi c1 yang sering terjadi perbedaan selisih dalam penghitungan pada saat pemilu untuk karna itu penulis menggunakan metode backprogration yang sudah teruji valid dalam pengenalan angka dan di sertakan metode machine learning dan deep learning sebagai pembanding metode yang akan di gunakan untuk penghitungan akurasi nya. Pengumpulan data pada penelitian ini menggunakan teknik Scraping untuk mengambil data dari situs kpu yang berupa image atau angka hasil tulis tangan yang bisa kelola dan di analisis menjadi suatu data yang bagus dan bisa dijadikan sebagai acuan data yang tersusun rapi. Metode yang digunakan dalam penilitian ini adalah algoritma Backprogation dengan melakukan fase pengumpulan data, pengolahan data, model atau metode yang diusulkan, pengujian dan evaluasi. Dengan dilakukannya penelitian ini diharapkan dapat menemukan model yang paling tepat untuk diterapkan pada klasifikasi data tulisan tangan c1.
Analisis Perbandingan Keberhasilan UMKM Sebelum Dan Saat Menggunakan Quick Response Indonesia Standard (QRIS) Di Kota Pematangsiantar
Authors: Hutagalung Rifqi Alfalah , Nainggolan Pinondang , Panjaitan Pawer Darasa 
Published: July 2022

Perkembangan teknologi yang sangat pesat terlihat dari banyaknya manusia yang menggunakan teknologi dalam kehidupan sehari-hari. Dengan hadirnya pembayaran non tunai seperti QRIS dapat meningkatkan efisiensi dalam mengatur keuangan suatu usaha namun juga dapat meningkatkan keberhasilan suatu usaha. Adanya penggunaan QRIS yang semakin banyak digunakan oleh UMKM, adanya berbagai promosi yang dilakukan, juga berbagai faktor lainnya sehingga dapat mempengaruhi keberhasilan UMKM karena meningkatkan efisiensi (kemudahan) dalam bertransaksi dan menjadikan UMKM lebih mudah dalam melakukan transaksi jual beli dan pembukuan keuangannya. Penelitian ini bertujuan untuk mengetahui hubungan penggunaan QRIS terhadap keberhasilan UMKM, sehingga tergolong sebagai penelitian asosiatif atau hubungan, yaitu penelitian untuk mengetahui sebab akibat, dengan metode penelitian kuantitatif. Data dalam penelitian ini didapat menggunakan kuesioner yang dibagikan ke 30 UMKM pengguna QRIS di Kota Pematangsiantar. Untuk menganalisis data digunakan aplikasi SPSS. Hasil dari penelitian ini didapatkan bahwa terdapat pengaruh positif antara penggunaan QRIS terhadap keberhasilan UMKM di Pematangsiantar. Hal ini disimpulkan berdasarkan uji Mc Nemar. Dapat dilihat nilai signifikansi yang lebih kecil dari 0.05 (0.001<0.05). Dalam penelitian ini nilai signifikansi lebih kecil dari ketentuan nilai signifikansi yaitu 0.05 sehingga menerima hipotesa H1(Terdapat pengaruh signifikan variabel (X) terhadap variabel (Y)). Hal ini menunjukkan penggunaan QRIS berpengaruh positif terhadap keberhasilan UMKM. Artinya jika ada peningkatan penggunaan/kepercayaan atas variabel QRIS maka tingkat keberhasilan UMKM juga akan meningkat
Analisis Laporan Keuangan Untuk Menilai Kesehatan Koperasi Serba Usaha (KSU) Mekar Sari Pematangsiantar
Authors: Sinaga Mahaitin H , Saragih Marintan 
Published: July 2022

Dalam penyusnan Laporan keuangan apabila disusun secara baik dan akurat dapat memberikan gambaran keadaan yang nyata mengenai hasil atau prestasi yang telah dicapai oleh organisasi, selama dalam kurun waktu tertentu. Tujuan dari penelitian ini untuk mengetahui bagaimana kesehatan Koperasi Serba Usaha (KSU) Mekar Sari Pematangsiantar jika dihitung menurut Permen KUKM No.20/Per/M.KUKM/XI/2008. Dalam memperoleh data dalam penelitian ini menggunakan teknik pengumpulan data metode wawancara yang dilakukan langsung dengan karyawan KSU Mekar Sari dan metode dokumentasi. Teknik analisis data yang digunakan adalah metode deskriptif dan metode induktif. Hasil dari penelitian ini adalah bahwa KSU Mekar Sari Pematangsiantar pada tahun 2016 - 2020 dari hasil analisis mendapat predikat cukup sehat dinilai dari aspek permodalan, kualitas aktiva produk, manajemen, efisiensi, likuiditas, kemandirian, pertumbuhan dan jati diri koperasi. Berdasarkan penilaian skor masih ada nilai yang rendah, untuk itu diharapkan agar koperasi meningkatkan pengelolaan secara menyeluruh terhadap aspek permodalan, kualitas aktiva produk, manajemen, efisiensi, likuiditas, kemandirian, pertumbuhan dan jati diri koperasi
Budaya Organisiasi Profesional, Integritas, Kredibel, Kerjasama Tim, Inovatif, Kreatif (PIKKIR) dan Pengaruhnya Terhadap Kreatifitas Pegawai Pada Kantor Badan POM Kota Tanjung Balai
Authors: Indah Lestari  , Simatupang Pandapotan 
Published: July 2022

Budaya organisasi PIKKIR dan Pengaruhnya Terhadap Kreativitas Pegawai Pada Kantor Badan POM di Kota Tanjung Balai. bertujuan untuk mengetahui pengaruh budaya organisasi PIKKIR terhadap kreatifitas pegawai di Kantor Badan POM Kota Tanjung Balai. Rumusan penelitian, bagaimana pengaruh budaya organisasi PIKKIR terhadap kreativitas pegawai di Kantor Badan POM di Kota Tanjung Balai” Hipotesis pada penelitian ini adalah budaya Organisasi PIKKIR berpengaruh nyata terhadap kreativitas pegawai di Kantor Badan POM kota Tanjung Balai. Responden pada penelitian in adalah seluruh populasi yang berjumlah 30 orang, yaitu ASN yang bekerja di Kantor tersebut. Tehnik Analisa data yang digunakan adalah regressi berganda dengan persamaan Y = a + + + + + + , dan dari hasil analisa data diketahui Y= 9,052 + 1.875 + 0,236 + 0,494 + 1,095 + 1,825 + 0,407. Dari uji hipotesis secara parsial bahwa budaya pikkir berpengaruh nyata terhada kreativitas pegawai di Badan POM kota Tanjung Balai, demikian juga secara serempak budaya Pikkir berpengaruh nyata terhadap terhadap kreatitifas.Dengan demikian hipotesis diterima
UMMY SIAPKAN LULUSAN MEMILIKI SOFT SKILL DAN BERDAYA KOMPETITIF: PROGRAM BLPKL TRACER STUDY
Authors: Rahayu Zona Rida , Halid Elan , Putri Mega 
Published: July 2022

BAN-PT has accredited Universitas Mahaputra Muhammad Yamin (UMMY) Solok, consisting of four faculties and twelve study programs. Ten study programs have received accreditation B, while two have received accreditation C. Since 1984, UMMY Solok has existed. There are 1,800 registered UMMY students until 2022. UMMY Solok graduates roughly 326 students each year for two types of graduations: odd and even semester graduations. It is vital to follow alumni systematically to respond to the growing number of graduates each year. This study attempts to determine the number of UMMY alumni employed, as well as if the knowledge learned during college applies to current jobs. This is geared toward bettering each study program's curriculum to meet the demands of the workplace. The alumni of 2017 graduates, a total of 381 graduates, will be the focus of the tracer study. Manual questionnaires were given to graduates who were not discovered through social media and online questionnaires. Meanwhile, for alumni discovered through social media (via Facebook, line, and WhatsApps) and IT-based, the questionnaires were given on http://www.ummy.ac.id. The questionnaires were given in a more focused and guided way. The establishment of an alumni database for the UMMY Solok tracer research can be accessed through lpkm.ummy@gmail.com. The following are the tracking results: (1) According to the survey results of the tracer study team, UMMY Solok alumni are looking for jobs before they graduate, and the average wait time for a job after graduation is five months. (2) UMMY Solok alumni who have worked in various countries or regions look for work in a variety of ways in order to find positions that match their disciplines and interests. (3) The topic of study is the variety of disciplines researched; the association between the field of study and alumni work is quite close (31,7%). (4) Almost all of the competencies held by alumni are good or very good.
PENGARUH PEMBERIAN JUS SEMANGKA TERHADAP PERUBAHAN TEKANAN DARAH PADA PENDERITA HIPERTENSI DI PUSKESMAS KECAMATAN KEMAYORAN
Authors: Adibah Yohana 
Published: July 2022

Latar belakang : Secara epidemiologi hipertensi diperkirakan menjadi penyebab kematian sekitar 7,1 juta orang di dunia atau sekitar 13% dari total kematian. Dari hasil Riskesdas yang terbaru tahun 2018, prevalensi kejadian hipertensi sebesar 34.1%. Pada tahun 2025 mendatang, diproyeksikan sekitar 29% warga dunia terkena hipertensi. Hipertensi telah membunuh 9,4 juta warga dunia setiap tahunnya.
Metode : Desain penelitian yang digunakan adalah quasi eksperimental dengan pre and post test design. Pengambilan sampel diambil dengan purposive sampling yang memenuhi kriteria inklusi dan ekslusi. Data diuji menggunakan uji Wilcoxon Signed Rank Test.
Hasil : Berdasarkan hasil penelitian didapatkan p-value tekanan darah sistolik dan diastolik 0,000 (<0,005) yang artinya terdapat perbedaan yang bermakna antara rata-rata tekanan darah sistolik awal dan akhir responden dan rata-rata tekanan darah diastolik awal dan akhir responden.
Simpulan dan Saran : Terdapat perubahan tekanan darah responden ketika sebelum dan sesudah mengonsumsi jus semangka selama 7 hari. Diharapkan untuk peneliti selanjutnya menambahkan frekuensi pemberian jus semangka menjadi 2 kali sehari agar perubahan tekanan darah menjadi lebih signifikan.
Theoretically Modeling Photoionized Regions with Fractal Geometry in Three Dimensions
Authors: Jin 金 Yifei 刈非 , Kewley Lisa J. , Sutherland Ralph S. 
Published: July 2022

Abstract
We create a photoionization model embedded in the turbulent interstellar medium (ISM) by using the state-of-the-art Messenger Monte Carlo MAPPINGS V code (M3) in conjunction with the CMFGEN stellar atmosphere model. We show that the turbulent ISM causes the inhomogeneity of electron temperature and density within the nebula. The fluctuation in the turbulent ISM creates complex ionization structures seen in nearby nebulae. The inhomogeneous density distribution within the nebula creates a significant scatter on the spatially resolved standard optical diagnostic diagrams, which cannot be represented by the spherical constant-density photoionization model. We analyze the dependence of different optical emission lines on the complexity of nebular geometry, finding that the emission lines residing on the nebular boundary are highly sensitive to the complexity of nebular geometry, while the emission lines produced throughout the nebula are sensitive to the density distribution of the ISM within the nebula. Our fractal photoionization model demonstrates that a complex nebular geometry is required for the accurate modeling of H ii regions and emission-line galaxies, especially for the high-redshift galaxies, where the ISM is highly turbulent based on increasing observational evidence.
Working hours and overtime: insights from the perspective of affects
Authors: Dickason Rebecca , Dumas Marc 
Published: July 2022

Le dépassement horaire est fréquemment observé dans le secteur médico-social français, avec des effets néfastes sur la santé au travail du personnel soignant et sur la qualité des soins. Cependant, l’expérience affective du dépassement horaire pour les personnels de santé ainsi que la manière dont elle peut moduler les pratiques nécessitent d’être approfondies. L’objectif de cette étude quantitative est donc de se concentrer sur les raisons du dépassement horaire en s’intéressant aux facteurs liés aux affects (positifs et négatifs) sur le lieu de travail. Nos résultats montrent que la relation entre les affects et le débordement horaire est complexe et dépend à la fois de la valence (affects positifs/négatifs) et de la texture affective (sous-type des affects positifs/négatifs) : par exemple, l’anxiété est positivement associée à la fréquence du dépassement horaire mais la peur/hostilité est négativement reliée à la durée du débordement horaire. Nous examinons l’impact des conditions de travail (et du dépassement horaire) sur les soins, ainsi que les pratiques managériales et de GRH pertinentes pour prévenir le phénomène de dépassement horaire (capacité du cadre de santé à identifier les signaux faibles, renforcement des attributs magnétiques des établissements de soins). Enfin, des perspectives de recherche sont données, notamment en ce qui concerne la relation encore peu étudiée entre les affects et le débordement horaire.
Analysis and categorization of studies of digital marketing in small and medium enterprises
Authors: Cadavid Lorena , Valencia-Arias Alejandro 
Published: July 2022

Purpose: To analyze and categorize the scientific production in the field of digital marketing in small and medium enterprises.Design/methodology/approach: We retrieved the bibliographic information of 294 publications in this field indexed in Scopus and employed technology-mining techniques and cluster analysis of keywords to gain insight into the most relevant trends in this research area. We conducted a keyword cleaning process to remove ambiguity, synonyms, and obvious results and employed our own Python scripts and the Bibliometrix package in the R programming language for the calculations.Findings: Our results paint a broad picture of this research area, highlighting its most important journals, countries, researchers, and keywords, as well as their interactions. We also identified and explained five thematic clusters: electronic commerce, social media, specific social media, internationalization, and brand. We found that social media, big data, search engine optimization, advertisement, internationalization, websites, and Facebook are hot research topics in this field. Originality/value: This study offers updated information on the trends of the scientific production in said research field, covering a time window that goes up to the year 2021. This is beyond any traditional bibliometric analysis, and it reveals the structure of the knowledge in the field. This paper can be used as a reference point to define a future research agenda in this area.
Topographie et urbanisme de la Rome antique à l’éclairage de la réalité virtuelle
Authors: Fleury Philippe , Madeleine Sophie 
Published: July 2022

La réalité virtuelle est une technologie qui permet de s’immerger dans un environnement numérique en 3D et d’interagir avec lui en se déplaçant ou en manipulant des objets. À la différence de la simple restitution virtuelle qui fournit des images fixes ou des films pré-calculés, elle est peu utilisée dans les études concernant le patrimoine disparu ou fortement ruiné. Cette communication montre que la réalité virtuelle peut alimenter la discussion sur des questions difficiles de topographie en permettant d’observer les hypothèses de restitution à l’échelle humaine. Deux cas d’étude sont ici présentés : l’aspect du flanc sud-est du Capitole, vu du Forum républicain, et la localisation du temple au divin Trajan. Dans le premier cas, la réalité virtuelle montre que le temple de Jupiter, Junon et Minerve était invisible du Forum romain, mais que celui-ci était peut-être dominé par un temple à Vénus Victrix. Dans le second cas, la réalité virtuelle tend à conforter l’hypothèse d’un temple centré sur l’axe longitudinal du forum de Trajan, face à la colonne.
Rome et ses collines entre topographie et histoire urbaine
Authors: Chillet Clément 
Published: July 2022

Les collines de Rome sont envisagées non pas séparément mais comme un milieu commun produisant des conditions particulières à l’urbanisme de la ville de Rome. Sont prises en compte à la fois les caractéristiques physiques inhérentes à ce type de site, mais aussi les spécificités de l’histoire de l’urbanisme de Rome. Quatre directions des recherches actuelles, qui semblent les plus fructueuses, sont mise en avant : l’étude de l’orographie des collines ; l’étude de l’implantation historique du bâti urbain ; l’étude des circulations en marge de la ville ; l’étude des pratiques urbaines spécifiques à l’espace collinaire.