bluuebunny/crossref_metadata_2025 huggingface dataset:
PENAMBAHAN TEPUNG SUMBER β-KAROTEN ALAMI DALAM PAKAN TERHADAP PENINGKATAN KECERAHAN WARNA DAN PERTUMBUHAN IKAN KOI (Cyprinus carpio)
Authors: Purba Mustika , Putriningtias Andika , Komariyah Siti
Published: November 2022

Koi fish (Cyprinus carpio) is a high-economic ornamental fish which is still included in the relatives of carp. Koi fish have colorful body colors with various types and patterns. The color of ornamental fish is one of the attractions of koi fish lovers. One of the efforts to increase the brightness of koi fish is the addition of color material from natural sources. This study aims to analyze the effect of adding flour containing different natural beta-carotene to the brightness of the color and growth of koi fish. The design used in this study was a completely randomized design (CRD) consisting of 4 treatments with 3 replications. The treatment of this research is control or without the addition of beta-carotene source flour (P1), addition of mangosteen rind flour flour (P2), addition of dragon fruit skin flour (P3), and addition of crab shell flour (P4). Observed research parameters include Color Enhancement, LPBH (Daily Weight Growth Rate), Absolute Weight Growth, Absolute Length Growth, EP (Feed Efficiency), Survival Rate and water quality. The results showed that the Color Enhancement ranged from: 9.97 - 12.85, LPBH: 1.71% - 2.23%, Absolute Weight: 4.07g - 6.17g, Absolute Length: 1.55cm - 2.68cm , EP: 51.35% - 61.42%, SR: 86.67% - 100%. The results of analysis of variance were carried out that the increase in color, absolute weight and absolute length had a significant effect on koi fish (Cyprinus carpio). The addition of crab shell flour (P4) is the best result for the improvement of the color of koi fish (Cyprinus carpio) compared to the addition of dragon fruit peel flour and mangosteen flour.
PENGARUH PADAT TEBAR BERBEDA TERHADAP PERTUMBUHAN DAN SINTASAN BENIH IKAN PERES (Osteochillus kappeni) PADA PEMELIHARAAN KERAMBA JARING
Authors: Arisfa Muhammad Imam Al-ikhlas , Febri Suri Purnama , Rosmaiti Rosmaiti , Hasri Iwan
Published: November 2022

Penelitian ini bertujuan untuk menganalisis pengaruh padat tebar terhadap pertumbuhan dan sintasan benih ikan peres, serta untuk mengetahui padat tebar yang optimal dalam meningkatkan pertumbuhan dan sintasan benih ikan peres. Penelitian ini dilaksanakan di Balai Benih Ikan (BBI) Lukup Badak, Kecamatan Pegasing, Kabupaten Aceh Tengah. Ikan uji yang digunakan yaitu Ikan Peres dengan panjang awal 3 - 4 cm dan berat 0,32-1,90gram sebanyak 480 ekor. Metode penelitian yang digunakan adalah metode eksperimen dengan menggunakan Rancangan Acak Lengkap (RAL), terdiri dari 4 perlakuan dan 3 kali ulangan. Perlakuan yang digunakan P1: 25 ekor/KJ, P2: 35 ekor/KJ, P3: 45 ekor/KJ dan P4: 55 ekor/KJ. Hasil analisis menggunakan uji sidik ragam (Anova), diperoleh bahwa padat tebar berpengaruh nyata terhadap penambahan bobot mutlak, panjang mutlak, sintasan, efisiensi pakan dan rasio konversi pakan (P>0,05) benih ikan peres. Padat tebar yang paling bagus yaitu P1 (padat tebar 25 ekor/KJ).
Leigh Syndrome in a Filipino Child: A Case Report
Authors: Sy Michelle G , Moral-Valencia Ma. Antonia Aurora
Published: November 2022

Introduction: Leigh disease and Leigh-like syndrome are a heterogenous group of neurodegenerative disorders involving any level of the neuraxis and may present with a variety of clinical presentations, prominent among them is psychomotor regression. Despite the remarkable number of established disease genes and novel mutations being discovered, many cases of Leigh syndrome remain without a genetic diagnosis, indicating that there are still more disease genes to be identified. Case: Here we present a case of a two and a half-year-old girl who presented with delayed acquisition of developmental milestones with subsequent regression, ataxia, and dyskinesia. Her work-up showed raised blood lactate levels and lactate peak in MR spectroscopy. Mitochondria genome showed absence of mitochondrial DNA mutation, while whole exome sequence analysis revealed a novel dynein gene variant, p.A1577S. Her parents underwent genetic testing as well, and her father also had the same dynein mutation, however, is non-symptomatic. She had an older brother who initially presented with ophthalmoplegia and eventually developed psychomotor regression. He subsequently expired from respiratory failure after almost 2 years from initial presentation. Both siblings were diagnosed with Leigh syndrome. Conclusion: The diagnosis of Leigh syndrome remains based on characteristic clinical and radiologic findings. However, a specific defect must be identified if reliable genetic counseling is to be provided.
Viewpoint: Decentralized Clinical Trials Have Arrived and Staying for Good
Authors: Cody Mary Suzette R
Published: November 2022

The Covid-19 pandemic challenged every healthcare system, and the disruption of clinical trials was not the least of it. Many clinical trials halted or did not activate as sponsors and investigators grappled with the risk of infection if patients involved in clinical trials visited trial sites. The clinical studies that managed to continue and complete were those that immediately adopted decentralized clinical trials (DCT) technologies such as eSource. Patients were engaged from the comfort and convenience of their homes during the clinical trials with the use of DCT technologies. The flexibility in recruitment, engagement, and monitoring of clinical trial participants are among the reasons why DCTs are here to stay.
Assessment of the healing of a purulent wound of the submandibular region in military personnel
Authors: Kuznetcova O.Yu. , Nesterov O.V.
Published: November 2022

The aim of the work was to study the effectiveness of the drug in healing a purulent wound of the submandibular region in military personnel.
To do this, 28 military personnel aged 24 to 29 years were treated with wounds of the mandibular region with a preparation from plant raw materials proposed by the authors by the method. Before and after wound treatment, the immune status was assessed: local oral immunity (slgA), indicators of lymphocyte subpopulations, indicators of humoral immunity (IgA, IgG, IgM, IgI).
The results of the use of the drug in the healing of a purulent wound of the submandibular region in this group of patients are presented. The results obtained show that the regeneration of tissues of the submandibular region when using the proposed method of this drug is better in 87% of cases, and immunological indicators tend to return to normal.
The effectiveness of the preparation in the healing of a purulent wound of the submandibular region was confirmed; a tendency to improve the state of the immune status was noted. The conclusion is made about the possibility of using this method for healing purulent wounds of the submandibular region and correction of immunity in military personnel.
Analysis of Code Switching and Code Mixing on the “Bajra” Film at the Darus Salam Modern Islamic Boarding School Gontor Ponorogo
Authors: Arifah Nurdiana , Shofia Aida
Published: November 2022

Darus Salam Gontor Islamic boarding school students have designed a film entitled Bajra due to the student’s creativity. In the movie, the phenomenon of code-switching and code-mixing in communication between students in the boarding school environment is found. This study aims to discover the types of code-switching and code-mixing in the Bajra film and the causes of their occurrence in the movie. This type of research is qualitative descriptive. At the same time, the data collection method uses listening/listening techniques in the Bajra film and notes essential points about the types of code-switching and code-mixing as well as the causes of what happened in the movie. The results showed that there were 3 types of code-switching in Bajra film: Metaphorical code-switching, Conversational code-switching, and situational code-switching. Meanwhile, code-mixing occurs in words, phrases, and clauses. The causes of code-switching and code-mixing are of two types, namely internal and external causes.
Dlaczego digitalizacja może stać się przyczyną anarchizacji
Authors: Siewierska-Chmaj Anna , Kłodkowski Piotr , Kossowska Małgorzata
Published: November 2022

Artykuł traktuje o fenomenie anarchizacji społeczno-politycznej powiązanym z dynamicznym procesem digitalizacji, głównie związanym z funkcjonowaniem mediów cyfrowych. Całość problematyki analizowana jest z kilku perspektyw: politologicznej, socjologicznej i psychologicznej. Zdaniem Autorów wiele mechanizmów sieci internetowych,  które opisano w artykule sprzyja nie tylko rosnącej społecznej i politycznej polaryzacji, ale także prowadzić może do recesji demokracji liberalnej i najważniejszych instytucji państwa. Autorzy stawiają tezę, że specyficzny sposób funkcjonowania mediów cyfrowych oraz możliwości ich wykorzystania mogą wzmacniać stopniowe procesy anarchizacyjne, oznaczające tworzenie społecznych podmiotów różnego rodzaju o wyraźnych tożsamościach, coraz mniej zależnych od centralistycznego państwa, a zarazem przyczyniających się (czy raczej mogących się przyczynić) do faktycznej atrofii dotychczasowych struktur państwowych, jak również reguł i procedur dotychczas obecnych w społeczeństwie.
Between the Fourth and Fifth Waves: The Evolution of Modern Terrorism
Authors: Czornik Katarzyna , Szynol Monika
Published: November 2022

Assuming that the third decade of the 21st century is a transition period between the fourth and fifth waves of terrorism, in accordance with D.C. Rapoport’s concept of cyclicity of terrorism, the article focuses on the evolution of modern terrorism. The main features of the four waves of terrorism identified so far are presented sequentially. Then, reasons for initiating the decline of the fourth wave are identified and the perspectives for the constitution of the fifth wave of terrorism are explored. In the first section of the article, referring to the definition of terrorism and based on D.C. Rapoport’s concept of waves of modern terrorism, we demonstrate the determining factors, characteristics and elements which constitute this phenomenon. In the subsequent sections, we seek answers to the following questions: What are the characteristic features of the previous four waves of terrorism? What factors are leading to the decline of the fourth wave of terrorism? Which characteristics of the fourth wave of terrorism may be taken over by the next wave? What are the concepts of the fifth wave of modern terrorism? Research methods and techniques appropriate for the field of social sciences, particularly political science, are used in the study.
IMPLEMENTASI PAJAK PERTAMBAHAN NILAI DAN PAJAK PENJUALAN ATAS BARANG MEWAH DALAM PERSPEKTIF UU NO.7 TAHUN 2021
Authors: Darmansyah Darmansyah
Published: November 2022

ABSTRAK

Dengan diberlakukannya Undang-undang Nomor 7 tahun 2021 tentang Harmonisasi Peraturan Perpajakan, salah satunya mengatur tentang Pajak Pertambahan Nilai dan Pajak Penjualan atas Barang Mewah, menjelaskan bahwa barang kebutuhan pokok, jasa pendidikan, dan jasa kesehatan yang sebelumnya merupakan barang dan jasa tidak kena Pajak Pertambahan Nilai, terhitung mulai diberlakukannya Undang-undang ini menjadi barang dan jasa yang dibebaskan dari pengenaan Pajak Pertambahan Nilai dengan tujuan agar masyarakat berpenghasilan kecil dan menengah tetap terlindungi dari kenaikan harga karena perubahan Undang-Undang Pajak Pertambahan Nilai. Selain itu, Pemberian fasilitas Pajak Pertambahan Nilai kepada masyarakat lebih tepat sasaran dan mencerminkan keadilan. Kenaikan tarif Pajak Pertambahan Nilai dari tarif 10% dinaikkan menjadi 11% yang mulai berlaku 1 April 2022, dan tarif akan berubah menjadi 12% selambat-lambatnya pada tanggal 1 Januari 2025. Untuk kemudahan dan kesederhanaan penerapan Pajak Pertambahan Nilai diterapkan tarif pajak bersifat final untuk barang atau jasa kena pajak tertentu.

Kata Kunci: Pajak Pertambahan Nilai, Pajak Penjualan Barang Mewah

ABSTRACT

With the enactment of Law Number 7 of 2021 concerning Harmonization of Tax Regulations, one of which regulates Value Added Tax and Sales Tax on Luxury Goods, explaining that basic necessities, education services, and health services which were previously goods and services are not subject to Added Tax. Value, as from the enactment of this Law, becomes goods and services that are exempt from the imposition of Value Added Tax with the aim that small and middle income people are protected from price increases due to changes in the Value Added Tax Law. In addition, the provision of Value Added Tax facilities to the community is more targeted and reflects justice. The increase in the rate of Value Added Tax from 10% is increased to 11% which comes into effect April 1, 2022, and the rate will be changed to 12% no later than January 1, 2025. For the convenience and simplicity of applying the Value Added Tax, the final tax rate is applied for certain taxable goods or services.

Keywords: Value Added Tax, Luxury Goods Sales Tax
Formation of NiO films by reactive sputtering and application to BaSi2 heterojunction solar cells as hole-selective interlayer material
Authors: Takenaka Haruki , Hasebe Hayato , Kido Kazuki , Koitabashi Ryota , Mesuda Masami , Toko Kaoru , Suemasu Takashi
Published: November 2022

Semiconducting BaSi2 has attractive features for thin-film solar cell applications. In this study, we investigated the potential of NiO as a hole transport layer in NiO/BaSi2 heterojunction solar cells both by simulation and by experiment. To find deposition conditions to form NiO layers, a NiO target was sputtered on glass substrates under various O2-to-Ar gas flow ratios. The hole concentration of the NiO films was controlled in the range 1017–1021 cm−3 mainly by the substrate temperature during deposition. After that, NiO/BaSi2 heterojunction solar cells were designed using a one-dimensional simulation software (AFORS-HET v2.5). The conversion efficiency exceeded 16% for 400 nm thick n-BaSi2 absorption layers. We actually formed NiO/BaSi2 heterojunction solar cells on glass substrates by radio-frequency sputtering, and demonstrated that the carriers photogenerated in the BaSi2 films contributed to the internal quantum efficiency spectrum at wavelengths shorter than approximately 900 nm, corresponding to the band gap of BaSi2.
Robust and fast auto-focusing using convolutional neural networks for off-axis digital holography
Authors: Lee Jaesung , Son Kyungchan , Bamshad Hamid , Yang Hyunseok
Published: November 2022

In this paper, we propose a robust and accurate estimation method for the distance required for digital holography (DH) reconstruction using convolutional neural networks (CNN) in off-axis DH (off-axis DH). This method applies adaptive spectral pooling to reflect distance-related optical characteristics and minimize information loss during the training phase. Simulations and experiments have confirmed that the proposed method is more robust and accurate than search-based or CNN-based distance estimation methods.
FUEL TEMPERATURE MEASUREMENT METHOD USING MACHINE VISION
Authors:   LGTU, Levin Maxim , Nagornov Stanislav ,   All-Russian Scientific and Research Institute of Use of Techniques and Oil Products in Agriculture, Levina Ekaterina ,   MSTU im. N. E. Bauman, Levina Lyubov ,   LGTU, Kovalenko Irina ,   LGTU
Published: November 2022

The paper considers and solves the issues of the formation of algorithms and practical methods for the application of machine vision in the framework of an intelligent oil storage facility to measure the fuel temperature as a digitalization method in the agro-industrial facility. "Smart oil depot" as a digitalization method allows not only to accumulate local information about fuel tanks, but to manage fuel loss prevention systems, predict reserves, risks, and emergencies. Improving the framework of "intelligent oil storage" is carried out through the creation of machine vision systems. The resulting system significantly increases the autonomy of the intelligent algorithms for managing the tank farm and ensures its safe operation. The principle of measuring the temperature of the fuel in the tank is to obtain a thermal-visual image of the tank surface and then compare its temperature range with the calibration of the thermal imager. The problem of image matching is solved using different types of representations, namely, correlation methods, the basic idea of which is to compare the tank wall images pixel-by-pixel with the known thermal imager calibration. Approbation of the created machine vision method for determining the fuel temperature by the "smart oil depot" was carried out by comparing the determined values of gasoline temperature at the tank wall and those calculated by the neural network. The experiment was conducted on a steel ground horizontal cylindrical tank filled with gasoline. The experiment results reflect that the created method allows the neural network to see the temperature of the fuel with an accuracy of at least 98%. The application of the above method in the agro-industrial facility is aimed at solving the interrelated environmental and energy problems of our time. Saving energy resources, maintaining the quality of fuels and lubricants, reducing pollution of the atmosphere is due to the intelligent control of fuel protection systems, and the use of the machine vision method increases the accuracy of such control.
PERFORMANCE STUDY OF MACHINES FOR WORKING WITH HOTHOUSE SOIL
Authors:   Saratov State University of Genetics, Biotechnology and Engineering named after N.I. Vavilov, Vezirov Alexander
Published: November 2022

Hothouse plant growing based on the organic farming soil technology includes hothouse soil preparation, use, and removal from the hothouse upon the termination of the growing cycle. A complex of machines of new designs, consisting of a combined paver, a loader-mixer and a soil removal machine, is proposed to carry out these works. One of the main efficiency indicators of these machines is their performance Analytical expressions describing the influence of design and operating parameters on the performance of machines were obtained in the course of theoretical studies. The conveyor chain speed, the angular rate of the dosing drum, the number of conveyor scrapers, and drum bars have been determined to have the maximum impact on the performance of the combined stacker, while for the soil removing machine these parameters include the height of the removed soil layer and the machine travelling speed. A series of two-factor experiments have been carried out to define the optimal values of the above parameters. Based on the analysis of the experimental data, regression equations and respective 3D response surfaces have been obtained describing the impact of defined parameters on the performance. For the combined stacker, the following optimal parameter values have been determined, at which its performance reaches maximum value: 0.33-0.37 m/s chain speed, 7 to 8 conveyor scrapers (for the 2.5 m long conveyor); 6.0-6.5 rad/s angular rate and 6 dosing drum bars. The maximum performance of the soil-removing machine corresponds to the following parameters: 0.2-0.25 m/s travelling speed with the dump surface inclination of 22-24 degrees at the removed soil layer height of 0.18 m. Based on the obtained results, the performance of the hothouse soil preparation and removing machines has been determined.
FIELD STUDIES OF THE COULTER OF A GRAIN SEEDER WITH A HINGED CONNECTION OF A SEED GUIDE AND A RIPPER SOILS WITH BODY
Authors:   Penza state agrarian University, Zubarev Andrey , Kukushkin Igor ,   Penza state agrarian University, Laryushin Nikolay ,   Penza state agrarian University, Shukov Alexander ,   Penza state agrarian University
Published: November 2022

The uniformity of seed distribution along the length and depth of the row (sowing spacing) depends on the correct operation of the opener of the grain seeder, but not all modern openers have these indicators, so the scientists of the Penza State Agrarian University developed a grain seeder opener with a hinged connection of the seed guide and soil cultivator with the opener body, using which solves this problem. The distribution of seeds of spring barley variety "Sursky Favorit" by the depth of placement when using the developed coulter, compared with the indicators obtained using a standard double-disk coulter, was studied in the course of laboratory and field tests. According to the obtained graphic dependence, which characterizes the distribution of seeds according to the depth of placement depending on the type of coulters, it was found that the number of seeds in a given layer is 4-6 cm when sowing with a coulter of a grain seeder with a hinged connection of the seed guide and soil ripper with the coulter body and a standard double-disk seeder coulter SZ-5.4 is 91% and 71%, respectively. A decrease in the uneven distribution of seeds along the depth of the furrow will occur when using an experimental coulter, which in turn will affect the increase in yield. Yields will increase by 12% on average compared to the standard coulter.
THE CONCEPT OF "SMART OIL STORAGE" BASED ON MACHINE VISION TECHNOLOGIES
Authors:   LGTU, Levin Maxim , Nagornov Stanislav ,   All-Russian Scientific and Research Institute of Use of Techniques and Oil Products in Agriculture, Levina Ekaterina ,   MSTU im. N. E. Bauman, Levina Lyubov ,   LGTU, Kovalenko Irina ,   LGTU
Published: November 2022

The paper considers and solves the issues of the formation of algorithms and practical methods for the application of machine vision in the concept of a smart oil storage. The resulting technology will significantly increase the autonomy of intelligent algorithms for managing the tank farm and ensure its safe operation. The fundamental principle of the development of the bionic approach in machine vision is the use of artificial neural networks to recognize objects from the received images. The solution to the problem of visual perception with the help of a computer was the development of artificial neural networks and algorithms for their training. To increase the autonomy of intelligent algorithms for managing a tank farm and ensure its safe operation, it is necessary to develop algorithms and practical methods for using machine vision in the framework of an intelligent oil storage unit. The results of measurements of a steel surface horizontal tank by a neural network based on the image from the camera are obtained by spatial transformation of its image and construction of structural elements using the contour segmentation algorithm. The initial representation, from which the mapping is carried out to some final representation, is usually the representation of the image in the form of an array of raw data - a set of results of physical measurements made for some image from the camera. A picture from a camera contains, in terms of computer vision, a set of physical objects or some fragment of the real world, in our case, a ground horizontal cylindrical tank. The smallest image element with such an initial representation is a pixel containing the result of a single measurement of a given physical quantity. The result obtained was: tank height 2.05 m, tank length 3.17 m, diameter 2.25 m. The measurement error in this case is 4.5%.
Uso de TIC y sus determinantes en las microempresas de Colombia
Authors:   Universidad Santiago de Cali, Ríos Obando José Fabian , Duran Peralta Julián ,   Universidad Santiago de Cali
Published: November 2022

El presente estudio busca establecer los determinantes de la intensidad de uso de TIC en las microempresas de Colombia, como un aporte al análisis del proceso de transformación digital en este conglomerado económico. Con este propósito inicialmente se mide un índice sintético para establecer la intensidad en el uso. Específicamente, se realiza un cálculo del índice de distancia ponderada DP2, utilizando la información de la Encuesta de Micronegocios 2019 del Departamento Administrativo Nacional de Estadística DANE. Posteriormente, se evalúa a través de un modelo de regresión lineal la incidencia de un conjunto de determinantes sobre la intensidad de uso, tomando como variable explicada el índice sintético y como explicativas las características de las unidades económicas y los aspectos sociodemográficas del propietario. Los resultados señalan que un bajo porcentaje de unidades productivas son altamente intensivas en el uso TIC, y la mayoría restante tiende a ubicarse en una posición de menor uso. Además, en ciudades como Medellín, Bogotá, Villavicencio y Pasto, las microempresas presentan un mejor desempeño de uso digital. Del mismo modo, la intensidad de uso de estas tecnologías disminuye con la edad del propietario, y aumenta con el tamaño y la infraestructura informática del establecimiento. También, facetas menos abordadas en la literatura como la formalidad empresarial y el capital social influyen de manera positiva. Por lo tanto, los hacedores de política deben diseñar mecanismos para incrementar la apropiación de herramientas tecnológicas, ya sea a través de capacitación con educación formal o no formal, o impulsando un emprendimiento con mayor disposición al empleo de las nuevas tecnologías.
Analisis Kesesuaian Alat Keselamatan Jiwa Sesuai Dengan Solas 1974/1978 As Amended Pada Kapal-Kapal Cement Carrier Di PT. Pelayaran Tonasa Lines
Authors: Chalid Pasyah A. , Fitrial Denny , Adhitya Raka
Published: November 2022

Dalam pelayaran, keamanan dan keselamatan sangatlah penting. Namun mirisnya di Indonesia masih ditemukan banyak ketidak sesuaian alat-alat keselamatan dengan yang tertera di Solas 1974/1978. Saya ambil contoh dari salah satu perusahaan pelayaran di Indonesia yaitu PT. Pelayaran Tonasa Lines yang mana merupakan perusahaan pelayaran yang memiliki 6 kapal cement carrier yang beroperasi di perairan laut Indonesia untuk mengirimkan semen-semen berkualiatas tinggi ke seluruh pelosok Indonesia, namun kapal-kapal tersebut masih kurang mumpuni jika dilihat pada faktor keselamatannya. Pada saat pengamatan di kapal milik PT. Pelayaran Tonasa Lines, peneliti menemukan adanya ketidak sesuaian persyaratan jumlah alat-alat keselamatan dan juga ditemukan Distress Flares atau Pyrotechnic yang sudah expired. Maka dari itu penelitian ini dibuat untuk menemukan alasan mengapa banyak ditemukannya alat-alat keselamatan jiwa yang sudah expired juga untuk menemukan alasan mengapa banyak alat-alat keselamatan jiwa yang jumlahnya tidak sesuai dengan yang tertera di peraturan yang ada, serta untuk mengetahui kondisi kesesuaian persyaratan alat-alat keselamatan yang diatur dalam Solas 74/78 terhadap kapal-kapal cement carrier milik PT. Pelayaran Tonasa Lines, dan untuk juga mencari solusi dari masalah-masalah diatas. Metode penelitian yang digunakan adalah kualitatif dengan tekhnik analisis data statistik deskriptif. Dari hasil penelitian diperoleh kesimpulan bahwa untuk menghindari terjadinya hal-hal yang tidak diinginkan selama pelayaran, maka sistem keamanan harus diutamakan dengan selalu mengontrol kondisi Life-Saving Appliances diatas kapal.
The Effect Of Quality Of Document Service To Customer Satisfaction In PT. Mediterranean Shipping
Authors: Leonard Agus , Fachruddin Imam , Ezra Deffan
Published: November 2022

Mediterranean Shipping Company, is one of the major multinational companies in Indonesia, multinational companies can communicate with customers and sell to customers abroad without the need for a lot of physical investment in foreign markets (United Nations Conference On Trade, UNCTAD, 2017), through its market reach so large and with business relationships that are spread everywhere, then this company has a pretty good rating in the international business arena. PT. Mediterranean Shipping Company Indonesia develops its business as a shipping company in the field of International container transportation (export import) and offers various facilities for export to exporters.
Receding Horizon Control Using Graph Search for Multi-Agent Trajectory Planning
Authors: Scheffe Patrick , Pedrosa Matheus Vitor de Andrade , Flaßkamp Kathrin , Alrifaee Bassam
Published: November 2022

It is hard to find the global optimum to general nonlinear, nonconvex
optimization problems in reasonable time.
This paper presents a method to transfer the receding horizon control
approach, where nonlinear, nonconvex optimization problems are
considered, into graph-search problems. Specifically, systems with
symmetries are considered to transfer system dynamics into a finite
state automaton. In contrast to traditional graph-search approaches
where the search continues until the goal vertex is found, the transfer
of a receding horizon control approach to graph-search problems
presented in this paper allows to solve them in real-time. We proof
that the solutions are recursively feasible by restricting the graph
search to end in accepting states of the underlying finite state
automaton.
The approach is applied to trajectory planning for multiple networked
and autonomous vehicles.
We evaluate its effectiveness in simulation as well as in experiments
in the Cyber-Physical Mobility Lab, an open source platform for
networked and autonomous vehicles. We show real-time capable trajectory
planning with collision avoidance in experiments on off-the-shelf
hardware and code in MATLAB for two vehicles.
Model Predictive Torque Control for Permanent Magnet Synchronous Motors Using a Stator-Fixed Harmonic Flux Reference Generator in the Entire Modulation Range
Authors: Brosch Anian , Wallscheid Oliver , Böcker Joachim
Published: November 2022

To increase torque and power conversion of permanent magnet synchronous motors (PMSMs) at high-speed operation, the DC-link voltage of the inverter must be fully utilized during steady-state and transient operations. This paper proposes the incorporation of a harmonic reference generator (HRG) with a pulse clipping (PC) scheme into a model predictive control framework to achieve highest power output. The HRG calculates flux references in the stator-fixed coordinate system for an underlying continuous control set model predictive flux control (CCS-MPFC). These reference trajectories contain the harmonic flux component induced by the voltage hexagon in the overmodulation range and specific switching states (e.g., six-step operation) of the inverter are ensured by the proposed PC scheme. This enables a seamless transition to the overmodulation range including six-step operation and increases the drive's power conversion to its maximum extent. Since the flux differential equation in the stator-fixed coordinate system, used as motor model for the HRG and CCS-MPFC, is able to represent PMSMs with linear and nonlinear magnetization, the proposed approach is well suited for the control of PMSMs with nonlinear magnetization. Extensive transient and steady-state experimental investigations on a highly utilized PMSM in the entire modulation and speed range prove the performance of the proposed approach.
On modules over the mod 2 Steenrod algebra and hit problems
Authors: Võ Phúc Đặng
Published: November 2022

Let us consider the prime field of two elements, $\mathbb F_2\equiv \mathbb Z_2.$  It is well-known that the classical "hit problem" for a module over the mod 2 Steenrod algebra A is an interesting and important open problem of Algebraic topology, which asks a minimal set of generators for the polynomial algebra $\mathcal P_m:=\mathbb F_2[x_1, x_2, \ldots, x_m]$ on $m$ variables $x_1, \ldots, x_m,$ each of degree one, regarded as a connected unstable $\mathscr A$-module  The algebra $\mathcal P_m$ is the cohomology with $\mathbb F_2$-coefficients of the product of $m$ copies of the Eilenberg-MacLan complex $K(\mathbb F_2, 1).$ Although the hit problem has been thoroughly studied for more than 3 decades, solving it remains a mystery for any $m\geq 5.$ In this article, we develop our previous work [Commun. Korean Math. Soc. 35 (2020), 371-399] on the hit problem for $\mathscr A$-module $\mathcal P_5$ in generic degree $n:=n_s = 5(2^{s}-1) + 18.2^{s}$ with $s\geq 0.$ As an immediate consequence, a local version of Kameko's conjecture for the dimension of the cohit space $\mathbb F_2\otimes_{\mathscr A}\mathcal P_m$ associated with weight vectors is true for $m = 5$ and degree $n_s.$ Also, we show that this conjecture also holds for any $m\geq 1$ and degrees $\leq 12.$ Two applications of this study are to establish the dimension result for the cohit space $\mathbb F_2\otimes_{\mathscr A}\mathcal P_m$ for $m = 6$ in generic degree $5(2^{s+4}-1) + n_1.2^{s+4}$ with $s > 0$ and to describe the modular representations of the general linear group of rank $5$ over $\mathbb F_2.$ Our results then show that the algebraic transfer, defined by W. Singer [Math. Z. 202 (1989), 493-523], is an isomorphism in bidegrees $(5, 5+n_s)$ with $s\geq 0.$ Also, we prove that Singer's transfer is a trivial isomorphism in bidegrees $(m, m+12)$ with $m\geq 1.$
Co-optimization of Decarbonized Operation of Coal-fired Power Plants and Seasonal Storage Based on Green Ammonia Co-firing
Authors: Zhao Fei , Li Yalou , Zhou Xiaoxin , Wang Dandan , Wei Yawei , Li Fang
Published: November 2022

Coal-fired power plants (CFPP) are a significant resource for flexibility regulation of power systems containing a high proportion of renewable energy (RE). This paper presents an extended study of the technology for co-firing coal and ammonia, which can decarbonize CFPP. The excess RE produces green hydrogen, converted into green ammonia for CFPP combustion. Moreover, this system has energy storage features that can cope with short-term fluctuations and store and utilize RE seasonally. In this paper, this system’s complex coupled thermal and electrical rocesses are simplified and characterized as a mixed integer linear programming (MILP) model for the first time. Furthermore, the operation of the green ammonia co-firing system is simulated at two time scales of five days and a full year. Finally, sensitivity and efficiency analyses are performed. The results shows that as the maximum co-firing ratio of ammonia and coal increases, the total operation cost (TOC), carbon emission (CE), and RE curtailment shows a decreasing trend. Therefore, the ratio of ammonia-coal co-firing is recommended to be 25% to compromise the TOC and exhaust gas emission. In this situation, the TOC and CE will decrease by 8.59% and 12.74%, respectively, compared with the scenario without co-firing technology. The overall efficiency of green ammonia synthesis and combustion for generation is about 13.92%.
Interplay between Physical Layer Security and Blockchain Technology for 5G and Beyond: A Comprehensive Survey
Authors: Ghourab Esraa M. , Jaafar Wael , Bariah Lina , Naser Shimaa , Muhaidat Sami , Yanikomeroglu Halim
Published: November 2022

Fifth-generation and beyond (5G and xG) wireless networks are envisioned to meet the requirements of vertical applications like high traffic throughput, ultra-massive connectivity, extremely low latency, and high quality of service. Disruptive technologies, such as massive multiple-input multiple-output, millimeter wave, and multiple access are being deployed to meet these requirements. However, their deployment poses several challenges, including a lack of network transparency, management decentralization, and reliability. Moreover, the heterogeneity of future networks raises security concerns, e.g., confidentiality, privacy, and trustworthiness. Indeed, due to the emergence of novel paradigms, e.g., quantum computing, traditional security approaches are no longer sufficient to protect over-the-air communications. Hence, 5G/xG networks must consider smart security techniques to operate seamlessly and efficiently. Within this context, physical layer security (PLS) and blockchain represent promising solutions to complement existing methods. By exploiting the characteristics of wireless links, PLS can enhance the security of communications, while blockchain may enable networks' decentralization, integrity, and trustworthiness. Motivated by these advancements, we provide an in-depth review of the existing PLS and blockchain literature. Then, for the first time in the literature, we present a framework to integrate PLS with blockchain in 5G/xG systems. We first provide a thorough discussion about the potential of PLS and blockchain for 5G/xG systems. Then, we present our vision of a cross-layer architecture that leverages PLS and blockchain. Through a case study, we demonstrate the high potential of cross-layer design to improve the security of vehicular networks. Finally, we identify related challenges and shed light on future research directions.
Nonuniform Transmission Line Model for Electromagnetic Radiation in Free Space
Authors: Xiao Gaobiao
Published: November 2022

An equivalent nonuniform transmission line model for electromagnetic radiation in free space is developed. By properly defining a voltage and a current associated with the transverse component of the mode fields, a kind of Telegraphers’ equation is derived for each spherical harmonic mode. Based on the equivalent distribution inductance and capacitance, the local characteristic impedance and phase velocity are derived. For each spherical mode, a cutoff spherical surface and an associated cutoff radius are introduced to separate the space into an evanescent region and a propagating region. A spherical mode field will decay approximately exponentially in the evanescent region and experience local reflection in the propagating region. The proposed model may provide an intuitive illustration for the radiation process in free space.   

This work is also part of my efforts in revisiting the issue of electromagnetic radiation and mutual coupling. Although the concepts I proposed, like the macroscopic Schott energy and this NTL model, may look strange and different from the conventional formulations, I believe they can provide intuitive and insightful interpretattion to the issue of EM radiation.   
Experimental Evaluation of Techniques to Lower Spectrum Consumption in Wi-Red
Authors: Cena Gianluca , Scanzio Stefano , Valenzano Adriano
Published: November 2022

Seamless redundancy layered atop Wi-Fi has been shown able to tangibly increase communication quality, hence offering industry-grade reliability. However, it also implies much higher network traffic, which is often unbearable as the wireless spectrum is a shared and scarce resource. To deal with this drawback the Wi-Red proposal includes suitable duplication avoidance mechanisms, which reduce spectrum consumption by preventing transmission on air of inessential frame duplicates.

In this paper, the ability of such mechanisms to save wireless bandwidth is experimentally evaluated. To this purpose, specific post-analysis techniques have been defined, which permit to carry out such an assessment on a simple testbed that relies on plain redundancy and do not require any changes to the adapters' firmware. As results show, spectrum consumption decreases noticeably without communication quality is impaired. Further saving can be obtained if a slight worsening is tolerated for latencies.
CSI-based NOMA for Integrated Sensing and Communication
Authors: Memisoglu Ebubekir , Türkmen Halise , Ak Özbakış Başak , Arslan Hüseyin
Published: November 2022

Integrated sensing and communication (ISAC) is a key enabler of fifth-generation and beyond networks and a multitude of futuristic applications. However, the coexistence, scheduling and  scarcity issues due to additional sensing signals are valid concerns. If a communicating device also requires sensing, it can use its communication signal for sensing. But if a non-communicating device requires sensing, the additional sensing signals will cause extra traffic in the network. Thus, in this letter, a novel integrated sensing and communication with iterative channel estimation (ISAC-ICE) method is proposed to provide spectral efficiency while maintaining sensing and communication performance. The simulation results and complexity analysis demonstrate that the proposed method with a linearithmic complexity enables non-orthogonal multiple accessing (NOMA) of ISAC.
Object Localization by Construction of an Asymmetric Isobody of The Magnetic Gradient Tensor Contraction Using Two Identical Permanent Magnets
Authors: Martinović Dean , Vuletić Jelena , Stuhne Dario , Orsag Matko , Kovačić Zdenko
Published: November 2022

This paper deals with predictive maintenance of infrastructure objects, focusing on the inspection of bridges. To achieve this goal, unmanned aerial vehicles place measuring units for data collection at different points of the bridge. This work deals with the question of how these measuring units can be found and removed by them later. For this purpose, a magnetic localization method based on the STAR method is presented. In contrast to the STAR method, which only detects the center of a magnetic target, a modified version called SRIOD is implemented here, where the orientation of the magnetic target can also be detected. This is essential information if the unmanned aerial vehicle is to grab the measuring unit with a robotic arm. In this regard, two identical permanent magnets are integrated into the measuring unit, whose gradient tensor contraction of the magnetic flux density distribution has a directed asymmetric surface when considering the contours of constant values. This creates a magnetic invisible reference plane that can be detected with a magnetic gradiometer. The method is verified both in simulation and experimentally in a laboratory setup.
Smart Wearable Travel Aid
Authors: Vinamra Neha , Rai Prachi , Shrivastava Aashi
Published: November 2022

This paper provides an overview of the most recent developments in the field of electronic travel assistance for blind and physically disabled individuals.
Virtual Bidding in a Two-Settlement Electricity Market with Asymmetric Information
Authors: Lu Yuxin , Wu Chenye , Zhang Jiasheng
Published: November 2022

Virtual bidding is a financial instrument that bridges the day-ahead (DA) and real-time (RT) electricity market. With improved forecasting accuracy, virtual bidding shrinks the gap between the two markets and thus increases social welfare. In this process, arbitrage opportunities exist because participants may hold asymmetric information. In this work, we study the arbitrage behaviors in virtual bidding. Adopting a game theoretical framework, we illustrate how participants' benefits vary when information asymmetry exists in the process. Moreover, we conduct extensive numerical studies to investigate how participants' profits with extra information differentiate in various market situations. The numerical studies reveal that although privileged participants with more information than others can take advantage of the information asymmetry to gain profits, not all of them can benefit. In contrast, virtual bidders directly taking the publicly available information must bear a loss.
Produção orgânica de alface americana em consórcio com almeirão, coentro, rúcula e salsa
Authors: Trevisan Forlani Rennan , César Oliveira Riva Neto Dhiego
Published: November 2022

Nos últimos anos são crescentes os debates a respeito da saúde e o meio ambiente. Nesse âmbito, a agricultura orgânica e produção de olerícolas são de suma importância, pela questão socioambiental e pela questão nutricional à população. O presente trabalho objetivou avaliar a produtividade da alface americana adensada em monocultura e submetida em consórcio com almeirão (Chichorium intybus), coentro (Coriandrum sativum L.), rúcula (Eruca sativa) e salsa (Petroselinum crispum). Os tratamentos foram compostos de: T1 – alface americana + almeirão; T2 – alface americana + coentro; T3 – alface americana + rúcula; T4 – alface americana + salsa; T5 – testemunha. O delineamento experimental adotado foi o de blocos casualizados (DBC), com as parcelas dispostas em 4 blocos e 5 tratamentos. Foram realizadas análises pós-colheita da cultura da alface americana nas seguintes variáveis: Massa Fresca da Parte Aérea (MFPA), Massa Seca de Raiz (MSR) e o Diâmetro da Parte Aérea da alface americana (DPA). Com exceção a rúcula, todas as plantas apresentaram qualidade comerciais satisfatórias e não houve diferença significativa na produtividade da alface americana, a demais o consórcio com almeirão se mostrou mais produtivo nas variáveis como MFPA e MSR seguido pela testemunha. Foi possível concluir neste trabalho que a prática de consórcio da alface americana com outras olerícolas já mencionadas é viável, tendo em vista que não houve interferência negativa em sua produtividade.
Redemocratização e proteção ecológica
Authors: Gorgen Zeca Bruna
Published: November 2022

O objetivo deste artigo é analisar a visão dos militares sobre o meio ambiente no Brasil, verificando possíveis mudanças e continuidades no entendimento do tema. O objeto, por tratar do meio ambiente, relaciona-se diretamente com a questão amazônica e as concepções da geopolítica sobre a floresta tropical. Será visto que as discussões ambientais levaram a um reposicionamento das Forças Armadas quanto ao sentido de sua presença na Amazônia. Para compreender as questões envolvidas, como a soberania, a imagem do Brasil, as pressões externas e a transição do poder para os civis na redemocratização do país, o trabalho faz uso de documentos do Sistema de Informações do Arquivo Nacional e de revisão da literatura sobre o tema.
EVALUATION OF THE MODIFIED MOLAR THRUSTER APPLIANCE FOR STRESS AND DISPLACEMENT ON THE MOLARS - FINITE ELEMENT ANALYSIS
Authors: John Dr. Christa Sara , Shetty Dr. Sandeep G. , Selva Dr. Stanley
Published: November 2022

A class II patient usually shows either a protrusive upper jaw, retrusive lower jaw or both. Management of the class II involves distalizing of maxillary dentition or mesialization of mandibular dentition or camouflage treatment. Distalization of maxillary dentition can be done using extra oral such as Headgear and intraoral appliances alike Pendulum Appliance, Distal Jet, Jones Jig, Molar Thruster Appliance. In this study the Molar Thruster Appliance was modified and designed to improve the efficacy and patient comfort of the appliance. This appliance is known as the Modified Molar Thruster Appliance. This study is intended to Evaluate the Stress and displacement on the molars of the Modified Molar Thruster Appliance through the Finite Element Analysis. Result: Stress caused by the appliance on the tooth was more on the coronal portion of the mesial part of the premolar which indicates the reactionary force caused by the appliance leading to anchorage loss. Displacement was seen more on the first molars in the disto-buccal direction. Further clinical research is required to comprehend and contrast its results with those of other molar-distalization like appliances.
Teacher’s and Young Learners’ Needs in English Teaching and Learning Environment
Authors: Pradnyana Giri Tastra , Santosa Made Hery , Saputra I Nyoman Pasek Hadi
Published: November 2022

The goal of this study was to analyze teachers’ obstacles in teaching English in SD Negeri 3 Banjar Jawa and students’ issues in the classroom from the teacher's perspective. The issues and solutions in teaching English to teachers were identified using a qualitative technique. The participant was interviewed using a Google Form. Based on the teacher's perspective, the results indicated that the teacher has two main problems, being that students have difficulties in learning vocabulary and pronunciation and that the teachers needed engaging learning material for the students. Teachers are encouraged to bring technology to the classroom to motivate the students during the teaching and learning process.