bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS BAHAYA DAN PENGENDALIAN TITIK KRITIS (HAZARD ANALYSIS CRITICAL CONTROL POINT) PADA RUMAH MAKAN DI KOTA KENDARI
Authors: Nurmaladewi Nurmaladewi , Muchtar Febriana , Hartoyo Agnes Mersatika
Published: January 2023

AbstrakMakanan adalah kebutuhan pokok manusia yang dibutuhkan manusia agar dapat melangsungkan kehidupan sehari- hari. Masalah sanitasi makanan sangatlah penting, terutama di tempat-tempat umum yang erat kaitannya dengan banyaknya pelayanan salah satunya yaitu rumah makan yang merupakan tempat umum yang menyediakan makanan olahan yang ramai dikunjungi masyarakat sehingga higiene dan sanitasinya menjadi hal yang sangat pernting untuk diperhatikan. Tujuan penelitian ini ialah untuk menganalisis penerapan Hazard Analysis Critical Control Point dan menganalisis faktor penyebab bahaya dalam penyelenggaraan makanan pada rumah makan siap saji di Kota Kendari. Jenis penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif untuk menggali atau memperoleh segala informasi yang rinci mengenai penerapan sistem analisis dan pengendalian titik kritis (HACCP). Lokasi penelitian ini akan dilaksanakan di beberapa Rumah Makan siap saji Kota Kendari. Populasi pada penelitian ini adalah seluruh rumah makan siap saji yang tidak memiliki sertifikat laik sehat yang ada di Kota Kendari. Sampel dalam penelitian ini adalah sebagian rumah makan siap saji yang tidak memiliki sertifikat laik sehat berdasarkan data dari Dinas Kesehatan Kota Kendari. Berdasarkan hasil observasi dan kuesioner yang dilakukan, penerapan HACCP dalam penyelenggaraan makanan khususnya makanan siap saji di rumah-rumah makan masih belum efektif disebabkan rumah makan yang belum menerapkan prinsip HACCP sepenuhnya dan hasil jawaban kuesioner terdapat perbedaan jawaban. Faktor penyebab bahaya yang teridentifikasi bahaya lebih dominan pada pengolahan makanan siap saji di rumah-rumah makan di Kota Kendari adalah cemaran biologi yang diperkirakan adanya bakteri atau patogen yang melebihi baku mutu tetapi tidak menyebabkan perubahan pada warna, rasa dan bau pada makanan jadi. Kata kunci: HACCP, makanan, bahaya
ANALISA FAKTOR YANG MEMPENGARUHI BEBAN KERJA PADA NELAYAN KECAMATAN TELUK NIBUNG, KOTA TANJUNGBALAI, SUMATERA UTARA.
Authors: Ayu Delfriana , Lubis Salsabila Nailul Muna , Nasution Syahra Utami , Nasution Nita Anggina , Wardani Minati Eka , Dewi Retno Puspita , Julhamdah Windiani
Published: January 2023

AbstrakAda banyak faktor yang menyebabkan suatu kecelakaan kerja terjadi. Sebab kecelakaan kerja tidak mengenal waktu dan tempat, baik pekerjaan di sektor industry maupun non-industri. Wilayah kerja pesisir tidak dapat dipungkiri dapat beresiko besar terjadinya kecelakaan kerja dan nelayan biasanya tidak melengkapi dan menggunakan alat pelindung diri serta alat keselamatan kerja. Sehingga cukup beresiko untuk mengalami kecelakaan kerja yang tinggi dengan waktu bekerja dan kapasitas beban kerja yang tinggi. Tujuan dari penelitian ini adalah untuk melihat adanya permasalahan yang cukup kompleks pada beban kerja nelayan pukat langgar untuk diperhatikan secara lebih serius. Jenis penelitian yang digunakan adalah metode kuantitatif deskriptif, teknik pengumpulan data dilakukan dengan wawancara, observasi, dan dokumentasi. Responden usia 43-53 tahun sebanyak 30% lebih mudah terasa berat beban kerja nya dibandingkan dengan responden yang usianya dibawah 43 tahun. Responden yang memiliki waktu kerja >8 jam sebanyak 20 responden (66,7%), lebih banyak dibandingkan dengan responden yang memiliki waktu kerja <8 yaitu dengan jumlah 10 responden (33,%). Keadaan lingkungan kerja sangat mempengaruhi tingkat kecelakaan kerja. Pada umumnya kecelakaan kerja yang biasa terjadi pada nelayan di pelabuhan Tanjungbalai Kecamatan Teluk Nibung adalah terpeleset, terjatuh, tehimpit piber dan jari tangan terputus karena mesin kapal. Kata Kunci : Kecelakaan Kerja, Beban Kerja, Nelayan, Wilayah Pesisir
PEMASARAN DENGAN PEMENGARUH (INFLUENCER) DIGITAL DI RUMAH SAKIT “TINJAUAN LITERATUR”
Authors: Laksono Sidhi
Published: January 2023

Abstrak Era digital saat ini menuntut dunia pemasaran untuk menggunakan teknologi dalam memasarkan produknya, tidak terkecuali dunia kesehatan Rumah Sakit (RS). Di dunia kesehatan, tujuan pemasaran adalah memahami kebutuhan dan keinginan pasien agar dapat memenuhi kebutuhan kesehatannya. Pemasaran digital di RS dapat dikerjakan menggunakan internet, surel (email) dan media sosial. Dengan berkembangnya dunia pemasaran digital pada bidang kesehatan muncul suatu konsep pemasaran pemengaruh (influencer) dalam kaitannya menjual produk jasa kesehatan. Pemengaruh digital ini memiliki pengikut yang besar, diharapkan dapat memberikan interaksi dengan pengikutnya. Pemengaruh digital ini terbagi dalam kalsifikasi berdasarkan jumlah pengikutnya. Dimana pemasaran dengan jumlah pengikut pemengaruh digital yang besar berpengaruh terhadap penjualan produk. Dalam artikel ini akan membahas secara singkat mengenai pemengaruh digital di RS. Kata kunci: pemasaran digital, konsep pemengaruh digital, klasifikasi pemengaruh, pemasaran pemengaruh digital.
KERAGAMAN MAKANAN IBU SELAMA PERIODE KEHAMILAN TRIMESTER 3 PADA WANITA POSTPARTUM DI KABUPATEN MUNA PROVINSI SULAWESI TENGGARA
Authors: Effendy Devi Savitri
Published: January 2023

AbstrakDi Indonesia, malnutrisi pada ibu hamil masih menjadi problem yang belum terselesaikan. Pola makan yang buruk menyebabkan ibu mengalami kekurangan berbagai zat gizi yang dapat memberikan konsekuensi negatif tidak hanya pada ibu namun juga pada janin yang dikandungnya. Tujuan dari penelitian ini adalah untuk mendapatkan gambaran keragaman makanan minimum selama periode kehamilan trimester 3 pada wanita postpartum di Kabupaten Muna. Jenis penelitian adalah survey deskriptif yang dilaksanakan dari bulan Desember 2021 sampai dengan Februari tahun 2022, pada Rumah Sakit Umum Kabupaten Muna dan beberapa pusat kesehatan masyarakat yang ada di kota Raha. Sampel dalam penelitian ini adalah 108 responden ibu melahirkan pada periode penelitian. Dari hasil survey 108 ibu melahirkan, 53,7 % mempunyai keragaman makan minimum yang tinggi dan 46,3 % mempunyai keragaman makanan minimum yang rendah. Terdapat 3 kelompok makanan utama yang mendominasi diet ibu yaitu nasi sebanyak 92,5 %, kelompok daging sebanyak 79,6 %, dan sayuran berdaun hijau sebanyak 68,5 %. Konsumsi sangat terbatas terlihat pada kelompok kacang-kacangan (8.3 %), susu dan produk susu (4,6 %), buah dan sayur sumber vitamin A (20,3 %) serta buah lainnya (25,9 %). Edukasi gizi berkaitan dengan diet ibu hamil perlu dilakukan oleh petugas kesehatan saat ibu melakukan kunjungan untuk pemeriksaan antenatal.Kata Kunci : Keragaman Makanan Minimum, Ibu Hamil
Fungsi Tari Piring Bagaluik dalam Kehidupan Sosial Masyarakat Jalan Bantiang Selatan Kecamatan Malalak Kabupaten Agam
Authors: Annisa Khaira Azka
Published: January 2023

Abstract: This study aims to explain and describe the function of the Plate Bagaluik dance in the social life of the people of Jalan Bantiang Selatan. The type of research used is qualitative using descriptive methods. Data obtained by direct observation and interviews. The data used in this study to complement research interests are primary and secondary data types. The results of the study show that the Bagaluik plate dance is a tradition in the implementation of customs on Jalan Bantiang Selatan, namely the wedding party, which is displayed as a means of wedding parties. Bagaluik plate dance as entertainment at weddings, as well as liveliness at weddings. The placement of the Bagaluik Plate Dance performance in the wedding ceremony is displayed when the procession of the bride and groom is finished.

Abstrak: Penelitian ini bertujuan untuk menjelaskan dan mendeskripsikan Fungsi tari Piring Bagaluik dalam kehidupan sosial masyarakat Jalan Bantiang Selatan. Jenis penelitian yang digunakan adalah kualitatif dengan menggunakan metode deskriptif. Data diperoleh dengan pengamatan langsung dan wawancara. Data yang digunakan dalam penelitian ini untuk melengkapi kepentingan penelitian  adalah jenis data primer dan sekunder. Hasil penelitian menunjukan, tari piring Bagaluik ini merupakan suatu kebiasaan secara tradisi pada pelaksanaan adat yang ada di Jalan Bantiang Selatan yaitu pesta perkawinan, yang ditampilkan sebagai sarana acara pesta perkawinan. Tari piring Bagaluik  sebagai hiburan dalam acara pesta perkawinan, juga sebagai penyemarak dalam pesta perkawinan.  Penempatan pertunjukan Tari Piring Bagaluik dalam acara pesta perkawinan ditampilkan saat selesainya arak-arakan kedua mempelai.
Personalized Diet Web-Service: A Case Study
Authors: Арсениев А.Н. , Руденко В.Д. , Рубан А.О. , Колесников М.В.
Published: January 2023

Рынок интернет-сервисов в области FoodTech активно развивается, предлагая новые форматы реализации потребностей клиента через услуги формирования индивидуального рациона питания. Целью работы является системное описание процесса подготовки бизнес-модели и проектирования веб-сервиса для формирования персонализированных рекомендаций индивидуального рациона питания на основе анализа результатов ДНК-тестов. Проведен анализ рынка персонализированного питания, потенциальных конкурентов, предоставляющих релевантные услуги, выделена целевая аудитория веб-сервиса. Получен общий вид веб-сервиса и определен формат предоставления услуг, выявлены ключевые преимущества в сравнении с конкурентными сервисами. Представлено описание минимального жизнеспособного продукта (MVP): построена бизнес-модель, определен план работ, перечень необходимых ресурсов и применяемые технологии. [1] Работа выполнена в рамках НИР 620182 «Проектирование сервиса персонализированных рекомендаций по питанию на основе анализа генетических данных»

It is stated that the FoodTech web-services market is actively developing, providing a wide variety of formats for fulfilling the client's needs in individual diet planning. The aim of the work is an overview of the process of business modeling and designing a web service that provides personalized recommendations on an individual diet planning based on the results of the DNA test interpretation. Within the analysis of the adjacent markets, potential competitors were carried out, as well as the target audience of the web service was identified. A general model of the web service and the format for providing services have been obtained, key advantages in comparison with competitive services have been identified. The description of the minimum viable product (MVP) is presented in the form of a business model, a work plan, a list of necessary resources and required technologies.
Providing remote employment in the Russian Federation under the influence of the Covid-19 pandemic
Authors: Сайченко О.А.
Published: January 2023

В статье охарактеризованы современные тенденции распространения дистанционной (удаленной) работы в Российской Федерации. Цель исследования заключается в раскрытии влияния комплекса ограничительных мер, которые вынужденно практиковались бизнес-сообществом и органами государственной власти в период распространения пандемии COVID-19. Дистанционная занятость рассмотрена в качестве инструмента взаимодействия работодателя со своими наемными работниками, который в перспективе позволил бы минимизировать размер совокупных издержек на организацию труда персонала без утраты качества выполнения трудовых функций.

The article describes the current trends in the spread of remote (remote) work in the Russian Federation. The purpose of the study is to uncover the impact of a set of restrictive measures that were forcedly practiced by the business community and government authorities during the spread of the Covid-19 pandemic. As a result of the study, the current opportunities for the development of distance employment, the advantages and limitations that are associated with the spread of this phenomenon, consisting in the performance of a specified labor contract outside the employer's location, have been identified.
DEVELOPMENT OF STRATEGIC INVESTMENT
Authors: Сергиенко Н.С.
Published: January 2023

Статья посвящена особенностям формирования и функционирования инвестиционных фондов, деятельность которых направлена на поддержку проектов стратегического значения для экономики. Представлены результаты применения опыта функционирования стратегических инвестиционных фондов за рубежом и дальнейшие направления исследований по вопросам управления рисками инвестиционных фондов в условиях кризиса

The article is devoted to the peculiarities of the formation and functioning of investment funds, whose activities are aimed at supporting projects of strategic importance for the economy. The results of applying the experience of functioning of strategic investment funds abroad and further directions of research on risk management of investment funds in crisis conditions are presented.
DOES LAND MARKETIZATION IMPROVE ECO-EFFICIENCY? EVIDENCE FROM CHINA
Authors: Yu Yantuan , Luo Nengsheng
Published: January 2023

The trend of market-oriented land transaction scheme and the optimal allocation of land resources have become two important components of ecological sustainable development. However, the relevance of analyzing effects of land marketization on ecological and environmental development cannot be overemphasized. The ecological and environmental effects of land marketization are the focus of this paper. We begin by developing a theoretical framework to investigate how land marketization affects eco-efficiency. Moreover, we develop a data envelopment analysis model to measure eco-efficiency. We empirically investigate the effect of land marketization on eco-efficiency using a data set of 251 cities in China over the period of 2003 to 2018. Both theoretical and empirical results show that the land marketization exerts positive effects on eco-efficiency. Specifically, a 100% increase in land marketization level leads to a 2.4 percent increase in eco-efficiency. The heterogeneous effects and spatial effects of the land marketization on eco-efficiency are also examined. Besides, the endogeneity issues are also discussed using instrumental variable approach. Finally, the mechanism analysis shows that land marketization improves eco-efficiency primarily through improving efficiency change, best practice change and technology gap change, respectively. The main conclusions are confirmed by several robustness checks.
Six ans après le Brexit : les relations entre l'Union européenne et le Royaume-Uni en matière de politique de concurrence et de réglementation des services financiers
Authors: Berrigan John , Guersent Olivier
Published: January 2023

Bien que l'accord de commerce et de coopération UE-Royaume-Uni et l'accord de retrait, y compris le protocole sur l'Irlande/l'Irlande du Nord, aient établi une base solide pour les relations futures entre l'UE et le Royaume-Uni, ils ne correspondent en aucun cas au niveau d'intégration économique qui existait alors que le Royaume-Uni était membre de l'UE. Il s'agit d'une conséquence naturelle du Brexit et du choix du Royaume-Uni de quitter l'UE où il était pleinement intégré au marché unique. Cette décision a eu un impact sur tous les secteurs de l'économie, y compris sur la politique de la concurrence et des services financiers, créant des frictions et des obstacles au commerce qui n'existaient pas lorsque le Royaume-Uni était membre de l'UE. Néanmoins l'objectif de l'UE est d'avoir une relation stable et positive avec le Royaume-Uni sur la base des accords que les deux juridictions ont signés et ratifiés. Classification JEL : F36, F38, F65, G18.
Le Brexit : c'est maintenant ?
Authors: Mathieu Catherine
Published: January 2023

Plus de six ans après le référendum qui avait vu les partisans de la sortie du Royaume-Uni de l'Union européenne l'emporter, le Brexit n'est pas achevé. Cet article rappelle les principaux points de l'accord de commerce et de coopération signé le 30 décembre 2020. L'article présente ensuite un état des lieux de l'application de cet accord et ses conséquences sur l'économique britannique à la mi-2022, sur fond de deux crises d'une ampleur exceptionnelle : la pandémie de Covid-19 au début de 2020, puis l'invasion de l'Ukraine par la Russie à partir de février 2022. Enfin, l'article aborde la question des relations futures entre l'UE et le Royaume-Uni. Liz Truss, Premier ministre, souhaite supprimer les réglementations héritées de l'UE pour renforcer l'attractivité du Royaume-Uni, mais elle semble aussi disposée à rechercher un compromis avec l'UE sur le protocole d'Irlande du Nord et à prendre part à la Communauté politique européenne. Classification JEL : F36, F38, F65, G18.
Philippe Mongin, un épistémologue exigeant de la théorie économique
Authors: Walliser Bernard
Published: January 2023

Les nombreux articles épistémologiques de Philippe Mongin sont commentés en les regroupant en trois grands thèmes. Ils sont respectivement consacrés à la transposition en économie de concepts fondamentaux de l’épistémologie générale, aux études consacrées au problème central de la rationalité économique des agents et aux difficultés concrètes rencontrées par telle ou telle théorie au regard des principes économiques. La conclusion porte sur l’exemplarité pour les jeunes générations des articles de l’auteur, qui conjuguent avec maîtrise les considérations historiques, philosophiques et techniques.
Sur une importante conjecture historique de Philippe Mongin
Authors: Munier Bertrand
Published: January 2023

En revisitant les sources de la théorie moderne du risque, Philippe Mongin [2019] a choisi de réexaminer les premiers écrits d’Allais à la lumière des débats du colloque international de Paris de 1952, « Fondements et applications de la théorie du risque en économétrie » (répertorié « Économétrie »). Il a conjecturé que l’ambition d’Allais était d’établir, non pas seulement un contre-exemple à la théorie de l’utilité espérée, mais bel et bien une théorie normative de la décision face au risque, appuyée sur un concept de rationalité en rupture avec celui de la théorie habituelle. L’article revisite la conjecture et les cheminements de la pensée d’Allais et argumente qu’en effet, plusieurs autres arguments peuvent être relevés en soutien de la conjecture de Mongin. Ces arguments ont non seulement l’intérêt d’ouvrir une liaison entre les univers de Maurice Allais et de Herbert Simon, mais ils appellent aussi à rééquilibrer le mérite trop exclusivement attribué à l’article de 1992 de Tversky et Kahneman pour l’élaboration de la théorie moderne de la décision face au risque. Si l’extension du modèle au cas de l’incertain est indiscutablement due à ces derniers auteurs, il apparaît qu’une série d’écrits de Maurice Allais devrait recueillir le mérite de la lente genèse du modèle dans les situations de risque au sens précis du terme, non seulement pour les idées séminales, mais aussi pour les innovations principales. Mention spéciale doit cependant être faite d’un développement « mertonien » conduit indépendamment par John Quiggin et par Maurice Allais lui-même dans les années 1980.
Les décideurs allemands et français et l’entrée en guerre en 1914 : les enseignements d’un modèle
Authors: Trannoy Alain
Published: January 2023

Nous construisons un modèle de décision de portée générale permettant de prédire le choix entre l’entrée en guerre et rester en paix d’un décideur rationnel. Ce modèle articule des causes profondes comme le risque de guerre future et d’autres paramètres comme les gains potentiels en cas de victoire, les pertes potentielles en cas de défaite et la probabilité de victoire et les pertes humaines liées au conflit. Nous appliquons et calibrons ce modèle au cas des décideurs allemands et français à la toute fin de juillet 1914, compte tenu des décisions déjà prises par l’Autriche-Hongrie et la Russie et de l’incertitude entourant la décision de la Grande-Bretagne. Nous nous situons dans l’hypothèse d’une guerre courte ne se prolongeant pas au-delà de l’année 1914. Notre modèle prédit l’entrée en guerre de l’Allemagne et de la France, l’argument de la guerre préventive (faire la guerre aujourd’hui plutôt que demain) se révélant déterminant pour les deux pays, avec en plus pour la France les bénéfices non négligeables liés à la récupération potentielle de l’Alsace-Moselle en cas de victoire. La calibration révèle que des deux pays, c’est la France qui semblait avoir le plus intérêt à la guerre, permettant d’expliquer le comportement passif des dirigeants français, Raymond Poincaré en tête, qui, s’ils n’ont pas provoqué la guerre, n’ont pas vraiment non plus cherché à l’éviter.
Artificial Intelligence-Based Intelligent Human-Computer Interaction
Authors: Acharjya Pinaki Pratim , Joardar Subhankar , Koley Santanu
Published: January 2023

Computers have become ubiquitous and play an important role in our lives. To be usable, any computing device must allow some form of interaction with its user. Human-computer interaction is the point of communication between human users and computers. AI is gradually being integrated into the human-computer interaction. Designing traditional human-computer interaction courses faces new challenges with breakthroughs in third-generation AI technology. New interaction scenarios between humans and computers, such as smart homes and self-driving cars, are constantly emerging. As AI systems become more widespread, it will be essential to understand them from a human perspective. This chapter will provide an overview to the AI-based intelligent human-computer interaction.
Artificial Intelligence Methods and Applications in Aviation
Authors: Shmelova Tetiana , Yatsko Maxim , Sierostanov Iurii , Kolotusha Volodymyr
Published: January 2023

The authors make an analysis of the International Civil Aviation Organization documents on applications of new technology for minimizing risk and improving safety in the aviation system. ICAO defined new approaches for effectiveness in aviation – application of artificial intelligence (AI) models for the organization of collaborative decision making (CDM) by all aviation specialists (pilots, air traffic controllers, engineers, etc.) using CDM models based on general information on the flight. The AI is presented in models of decision making (DM) in air navigation system (ANS) as expert systems. The effectiveness of ANS operators' decisions depends on the rational use of intelligent automation at all stages of aircraft flight in the form of intelligent decision support systems (IDSS), with hybrid intelligence (natural intelligence), and AI in DM. Models may be used in the education of aviation specialists and in IDSSs in real flight, especially in emergencies. The chapter presents some examples of CDM models in an emergency “engine failure in flight.”
The Impact of Artificial Intelligence on Search Engine
Authors: Saab Jana
Published: January 2023

In an aim to improve search engine results, AI interferes to boost it. Thus, this chapter investigates the impact of artificial intelligence on search engine. It includes the most advanced techniques of artificial intelligence that improve search engine optimization (SEO) rankings. In order not to fall in the hassle of having no ranking for your website, artificial intelligence can uplift a website position in the search engine. It is important to state that the growth of SEO has an integral role in digital marketing through AI. Moreover, the obtained results in research studies approve that the integration of artificial intelligence is vital for the progress of search engines.
Artificial Intelligence Applications in Cybersecurity
Authors: Abrham Tesfahiwet , Kaddoura Sanaa , Al Breiki Hamda
Published: January 2023

For the past decades, cyber threats have been increasing significantly and are designed in a sophisticated way that is tough to detect using traditional protection tools. As a result, privacy and sensitive personal information such as credit card numbers are being continuously compromised. Therefore, it is time to find a solution that can stand against the spreading of such threats. Artificial intelligence, machine learning, and deep learning could be among the top methods of detecting cyber threats. These methods could help to improve the detection technologies and engines for computer network defense. This chapter mainly focuses on artificial intelligence in cybersecurity. The main goal of this chapter is to highlight the drawbacks of the traditional security protection tools and discuss the improvements that has been made so far by applying artificial intelligence to solve the current cybersecurity problems.
Text to Image Synthesis Using Multistage Stack GAN
Authors: Dinesh Reddy V. , Desu Yasaswini , Sindhu Medarametla , Vamsee Chilukuri , Girish Neelissetti
Published: January 2023

Many recent studies on text-to-image synthesis decipher approximately 50% of the problem only. They failed to compute all the imperative details in it. This chapter presents a solution using stacked generative adversarial networks (GAN) to generate lifelike images based on the given text. The stage-I GAN creates a distorted images by depicting the rudimentary/basic colours and shape of a scene predicted on text illustration. Stage-II GAN ends up on generating high-resolution images with naturalistic features using Stage-I findings and the text description as inputs. The output generated by this technique is more credible than many other techniques which are already in use. More importantly, stack GAN produces 256 x 256 images based on the text descriptions, while the existing algorithms produces 128 x 128.
Machine Learning Approach in Human Resources Department
Authors: Abdulmajeed Ishraq , Nassreddine Ghalia , El Arid Amal A. , Younis Joumana
Published: January 2023

Artificial intelligence is one of the essential innovations made by scientists to simplify people's life. It allows intelligent computers to imitate human behaviors to accomplish specific tasks. Machine learning is a branch of artificial intelligence in which devices can learn from existing data to predict new output values. Machine learning is used in different domains, including human resources management. This chapter presents an application of machine learning in the human resources department. Machine-learning techniques help select the most suitable candidate for a job vacancy during recruitment stages based on different factors. Factors could include educational level, age, and previous experience. Based on these factors, a decision system is built using the binary classification method. The results show the effectiveness of this method in selecting the best candidate for a job vacancy, revealing the flexibility of the approach in making appropriate decisions. In addition, obtained results are accurate and independent of the dataset imprecision.
Rifle Detection and Performance Evaluation Using Deep Learning Frameworks
Authors: Ajibesin Adeyemi Abel , Edgar Doken
Published: January 2023

Deep learning models being used to improve human life has been an ongoing domain of research. Violence, especially with the proliferation of arms, has been on the increase worldwide. Many tragedies have occurred right across the globe, leading to people losing their lives as a result of being shot at with guns. This research sought to use deep learning frameworks to detect rifles in images and assess their performance based on the metrics of accuracy and F1 score. The study used a combination of images from Google open images and other sources to form a dataset of 2105 images; 1857 of those was used to train YOLOv3 and RetinaNet models to detect rifles, using Darknet-53 and ResNet50 respectively as the backbone networks. The models were evaluated after training using a test dataset containing 248 images, both the training and evaluation of the models were carried out using scripts written in Python. The results obtained showed that YOLOv3 had better output in terms of accuracy, precision, recall, and, consequently, the F1 scored better than RetinaNet
Nighttime Object Detection
Authors: Reddy V. Dinesh , Senagasetty Sai Vishnu Vamsi , Vanka Krishna Teja , Dhara Mohana Vamsi , Puvvada Rupini Durga , Hussain Muzakkir
Published: January 2023

These days, it's becoming harder to feel safer when we go out at night. So, to tackle this security problem, the authors propose a night patrolling mechanism to detect objects in low light conditions. Images taken during the nighttime have difficulties with less contrast, brightness, and noise owing to inadequate light or insufficient exposure. Deep learning-based methods accomplish end-to-end, unsupervised object recognition using convolutional neural networks, which abolishes the requirement to describe and draw out attributes separately. Despite the fact that deep learning has led to the invention of many successful object detection algorithms; many state-of-the-art object detectors, like Faster-RCNN and others, can't carry out at their best under low-light situations. Even with an extra light source, it is hard to detect the features of an item due to the uneven division of brightness. This chapter proposes a deep learning algorithm called single shot detector, with Mobilenet v2 as the backbone to tackle the issues of object detection under low-light situations.
Physical and Stimulated Emission Cross Section (SEC) Properties of Nd3+ Doped Lithium Fluorophosphate (LFP) Glasses
Authors: Rajagukguk Juniastel , Sarumaha Chayani S. , Rajagukguk Donna Helen , Kaewkhao Jakrapong
Published: January 2023

This work describes a study that utilizes the Nd3+ ions (1.0 mol%) doped in glass material with the chemical formula 59P2O5 - 20Li2O - 10AlF3 - 10NaF. To obtain a glass medium with good homogeneity, all samples in the form of powder were mixed thoroughly and melted at 1100 °C for 3 hours. This sample preparation method is widely known as the melt-quenching method. The cutt and polish process is carried out to obtain a proportional and highly transparent of glass sample. Several parameters of physical properties were measured and then calculated to obtain the values of other parameters. The optical properties and stimulated emission cross sections (ECS) of a glass medium were obtained by observing the absorption and emission spectra. Based on the analysis of ECS, it was found that the radiative lifetime (τR) for Nd3+ ions experimentally and calculated were 132μs and 248μs respectively. Meanwhile, the quantum efficiency is achieved up to 53%
The Orientation and High-Quality Effect of Deposit Layer to Surface Roughness on FDM 3D Printed Part
Authors: Bintara Redyarsa Dharma , Pradana Yanuar Rohmat Aji , Aminnudin Aminnudin , Suryanto Heru
Published: January 2023

In 3rd revolution industry, additive manufacturing has a role in term manufacturing process for creating a part. Additive manufacturing has popular name that is called 3D printing technology. The surface quality of 3D printed part is still observed and developed. So, the purpose of research is to know the surface quality of 3D printed part to different layer height and orientation of deposit layer in Polylactic Acid material (PLA). The experimental test involved a 3D printer machine to build square 3D printed part. Furthermore, the quality surface of specimen is measured by using SurftestSJ-301 Mitutoyo device. The layer height of the test specimen is varied from 0.05 mm to 0.15 mm with the increment of 0.5 mm for each specimen. The layer angle of deposit material is also varied from 45o to 90o with the increment of 15o for each variation. Base on the observation and analyzation, the highest roughness is on the Lh 0.15 mm (11.79 ) with 45o of layer angle of deposit material, whereas the lowest roughness on the Lh 0.05 mm (0.98 ) with 90o of layer angle of deposit material.
Crystal Structure and Magnetic Properties of SrCoO3-δ with Oxygen Deficiency (δ ≈ 0.23)
Authors: Al Qori' Mohammad Dani , Pandu Akbar Mochammad Yan , Nugraha Asep Ridwan , Septiani Ardita , Rafitasari Yeti , Primadona Indah , Dedi Dedi , Nugroho Agustinus Agung
Published: January 2023

We report a synthesis route to form a stable powder of SrCoO3-δ which show ferromagnetic component at room temperature. The powder was obtained from brownmillerite SrCoO2.5 using chemical oxidation. The x-ray diffraction pattern of the oxidized powder was best fitted using a tetragonal structure of I4/mmm with lattice constants of a = b = 10.87 Å, c = 7.664 Å and its oxygen content of 2.77 (δ 0.23) was measure by iodometric titration. In spite of a single-phase structure, the elemental compositions of oxidized powder characterized by the EDX measurement showed the presence of oxidation elements that might contribute to magnetic impurities at low temperatures. The powder nevertheless can be used for magnetic applications at room temperature.
The Mapping of Road Pavement Structure around the Seismically Active Regions by Using Ground Penetrating Radar
Authors: Zainal Muzakir , Raihan Raihan , Yanis Muhammad , Muksin Umar
Published: January 2023

The Banda Aceh-Sigli Road has become the central infrastructure in connecting the capital city of Aceh province with other districts. In some places, the road construction was in rice fields dominated by high sedimentation areas. The Aceh also has the Great Sumatran Fault, which has caused many earthquakes and damaged public infrastructure, including roads. The density of the soil structure as an infrastructure buffer needs to be observed before road damage can endanger the community. This study aimed to apply Ground Penetrating Radar (GPR) as a non-destructive method that detects subsurface conditions based on permittivity parameters. The method is measured using the IDS Georadar Opera Duo instrument, which operates with a frequency of 250 MHz and 750 MHz for a penetration depth of 4 m, which is measured on eight intersecting tracks, where two profiles have a length of 110 m measured in the direction of the road segment and five tracks with a length of 11 m is measured by a cross. GresWin2 software is used for optimal analysis and modeling of 2D radargram. The radargram model describes a subsurface structure consisting of three layers, where the first layer with a depth of 0 – 0.25 m is asphalt, and the second and d layer with a depth of 0.25 – 0.75 m was identified as the base course layer. In comparison, the third layer is interpreted as a sub base course layer at a depth of 0.75 - 4 m below. The analysis results also show a linearly damaged road structure with high propagation speed and large wave amplitude. Therefore, based on data processing, it can be concluded that the application of GPR is a non-destructive, fast, and economical method for evaluating road structures.
Properties and Mechanism of Al2O3- Al Composite Powder Prepared by Hydrothermal Method
Authors: Wang Yu Zhen , Shen Zhi Qiang , Song Jie Guang , Yang Guang Yuan , Qin Meng Li , Wang Ci , Liu Yu Xiang
Published: January 2023

In order to improve the wear resistance of aluminum matrix composites and reduce the cost at the same time, the Al2O3/Al composite powder was prepared by hydrothermal method in this experiment, and the material properties of the Al2O3/Al metal matrix composite powder material were studied. It can be seen from the results that the encapsulation degree of Al2O3/Al-based composite powder material first increases and then decreases with the increase of ammonia concentration, and first increases and then decreases with the increase of PH value. The optimal molar ratio of salt and alkali is 1:1. Through the optimization of process parameters, the ratio of aluminum nitrate and ammonia water is obtained as: 1:1, the slurry stirring speed is 1500r/min, the stirring time is 10min, and the heating temperature is 200°C, the obtained composite powder is relatively uniform, has a larger specific surface area, and has better powder properties.
Exploration of the Antifungal Activity of Zn0.2Fe2.8O4/ Ag Ferrofluids with Double Surfactants and Sunflower Seed Oil as Dispersion Medium
Authors: Zuhroh Sayyidati , Taufiq Ahmad , Hidayat Arif , Nasikhudin Nasikhudin
Published: January 2023

Candidiasis is an infection caused by the fungus C. albicans. Ferrofluid Zn0.2Fe2.8O4/Ag is the best candidate to overcome the problem of infection caused by this fungus. In addition to the safe ingredients used, its ability to create ROS and maintain stability has the potential to be an excellent antifungal agent. The purpose of this study was to create a new ferrofluid with double surfactants for the antifungal C. albicans. Zn0.2Fe2.8O4/Ag ferrofluids were synthesized using a bottom-up method, starting from the synthesis of Zn0.2Fe2.8O4 nanoparticles, Zn0.2Fe2.8O4/Ag nanocomposites, to the synthesis of Zn0.2Fe2.8O4/Ag ferrofluids. Zn0.2Fe2.8O4/Ag powder was characterized using XRD and SEM to determine the particle structure and morphology. Meanwhile, Zn0.2Fe2.8O4/Ag ferrofluids were characterized using FTIR and antifungal activity tests to determine the functional group and zone of inhibition against the growth of the fungus C. albicans. The results of the characterization analysis showed that Zn0.2Fe2.8O4/Ag nanoparticles had good crystallinity, with a crystallite size of Zn0.2Fe2.8O4/Ag of 11.32 nm and an Ag crystallite size of 7.00 nm. SEM characterization showed that Zn0.2Fe2.8O4/Ag nanoparticles had agglomeration with the average particle size distribution of 443 nm. The functional groups detected by FTIR confirmed the success of the ferrofluid synthesis Zn0.2Fe2.8O4/Ag where spinel functional groups, olefin groups, and functional groups S=O were formed. The results of the antifungal activity test showed that Zn0.2Fe2.8O4/Ag ferrofluids were relatively active as an antifungal agent, with a diameter of the C. albicans growth inhibition zone of 9.63 mm.
The Effect of Phosphotungstic Acid Filled on Carboxymethyl Cellulose/Polyvinyl Alcohol Matrix as the Polymer Electrolyte Membrane
Authors: Kedang Yohana Ivana , Atmaja Lukman , Santoso Mardi , Priyangga Arif
Published: January 2023

In this work, the researchers developed a new composite membrane based on Polyvinyl Alcohol (PVA) doped carboxymethyl cellulose (CMC) matrix to obtain mixed matrix membranes (MMMs) that showed a high methanol resistance and also applied the citric acid (CA) as a crosslinking agent. The addition of Phosphotungstic Acid (PTA) as filler into the CMC/PVA matrix aims to improve the performance of the membranes. The composite membranes were evaluated for chemical stability, scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infra-red (FTIR), water uptake (WU), methanol uptake (MU), methanol permeability, and ion exchange capacity (IEC). The results showed the prominent value of oxidation stability according to its weight loss of 49.81 to 7.39% at 50 °C, the WU in the range of ± to 71.34%, the IEC of 0.17 to 0.72 mmol/g, the MU in the range 31.96 % to 4.38% and permeability of methanol in the range 17.28 × 10-7 to 2.27 × 10-7 cm2/s. The methanol permeability and uptake decreased along with the increase of the amount of PTA in the composite membrane. The addition of PTA increased the IEC and demonstrated significant positive effects in the composite membranes. In conclusion, the CMC/PVA/PTA membrane can be recommended as promising biomaterial for polymer electrolyte membrane direct methanol fuel cell (DMFC) applications.
Cladding and Natural Aging of Aluminium Alloy 2024 for Aircraft Application
Authors: Agustin Helena C. Kis , Sidharta Indra , Caesarti Astri W.
Published: January 2023

Aluminium alloy 2024 is widely used in the manufacturing of aircraft components such as skin panels for the wing. Generally, the aluminium alloy 2024 is delivered as cold work condition i.e., 2024 T3. However, the aluminium alloy 2024 T3 does not meet the standard for aircraft wing skin. Therefore, further treatments such as cladding and heat treatment are carried out to improve its quality. Cladding was introduced to the 2024 T3 alloy at 495 °C using commercial purity aluminium. Subsequently, T42 heat treatment was introduced to the 2024 T3 alloy at 500 °C for 40 minutes, then followed by quenching and natural aging for 96 hours, yielding 2024 T42 aluminium alloy with cladding (T42 Clad). 2024 T42 aluminium alloy without cladding (T42 Bare) was also obtained by T42 heat treatment of 2024 T3. The effect of cladding and natural aging on mechanical properties is investigated by tensile test and hardness test. Conductivity meter was used to determine the electrical conductivity. Intergranular corrosion test and stress corrosion crack test were performed to investigate the effect of cladding and natural aging on corrosion resistance. Results indicate that the solution treatment and natural aging improve corrosion resistance, mechanical properties, but reduce electrical conductivity values. Cladding gives higher electrical conductivity value and elongation. Both natural aging and cladding treatment provide appropriate aluminium alloy for aircraft wing skins.
Various Low Magnetic Field Effect on Electrochemical Performance of Asymmetric Supercapacitor MnO2- Carbon-Based Composites
Authors: Al Fath Yusril , Istiqomah Istiqomah , Nasikhudin Nasikhudin , Diantoro Markus , Zulaikah Siti , Subagio Agus , Suprayogi Thathit , Osman Zurina
Published: January 2023

Application of energy storage systems such as supercapacitors can not be separated from the magnetic fields effect. In the last decade, it’s rare to find research reports about various low magnetic field effects on supercapacitor performance. Asymmetric supercapacitors based on MnO2-Carbon were made to analyze its electrochemical performance changes by magnetic field in 0-50 mT. Magnetic field was applied in flow direction from cathode (MnO2-C) to anode (C) during electrochemical performance test using Galvanostatic Charge-Discharge (C-D) instrument. The electrochemical performance was increasing in charging (91%) and discharging (22%) time of asymmetric supercapacitors. Impressively, the 50 mT magnetic field showed a high specific capacitance of 61.9 F/g at 0.1 A/g. The supercapacitor system delivers specific energy (17.8 Wh/kg), specific power density (329.72 W/kg), and outstanding stability (79% in 50 cycles). The electrochemical improvement by magnetic field indicates a highly promising application of this method in future supercapacitor devices.
The Distorted Octahedral and Magnetocrystalline Anisotropy of FeMnO3 by Stoner-Wohlfarth Model
Authors: Nugraha Asep Ridwan , Arrasyid Ervin Nauval , Dedi Dedi , Nugroho Agustinus Agung
Published: January 2023

Among magnetic materials, ferrites have significant attention due to their potential application, such as magnetic recording, sensors, radar-absorbent materials, catalysts, and energy-storage devices. One of the ferrites family, FeMnO3, has been synthesized by solid-state reaction using Fe2O3 powder with an excess of 0.02% MnO2 powder in the stoichiometric composition. The structural and morphological properties have been performed using XRD and SEM at room temperature. The diffraction peaks in the pattern were indexed as FeMnO3 with a cubic (bixbite, Ia3) crystal structure. It showed no additional peaks due to impurities. The SEM image reveals the grains nucleate in a cube-like shape. Some of the particles also seem to agglomerate into larger particles. The magnetic characterization was carried out using VSM at room temperature. The magnetic hysteresis loop (M-H curves) notices the ferrimagnetic behavior. The results show remnant magnetization (Mr), coercive field (Hc), magnetic moment (µB), and anisotropy constant of FeMnO3 are 0.296 emu/g, 299 Oe, 0.046 emu/mol, and 0.1 when the external field is 70˚-80˚ from the easy axis, respectively.
Microstructure and Hardness Properties of Hardfacing Overlays Deposited by Shielded Metal Arc Welding on Low Carbon Steel Plate
Authors: Oktadinata Herry , Jaonudin Irpan , Martijanti Martijanti , Prajitno Djoko Hadi
Published: January 2023

The aim of this study is to investigate the effect of applying various welding current parameters of shielded metal arc welding (SMAW) on microstructure and the hardness of the hardfacing overlays. The investigation was performed on a 12mm thick ASTM A36 steel plate weld overlaid by hardfacing electrode HV-450 of 3.2 mm diameter at various welding currents, 90, 110, and 130 amperes, respectively. The investigation was conducted by using optical microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and hardness test on the hardfacing overlay. The results showed the hardness of the hardfacing overlay is higher than the base metal, indicating higher strength of the weld overlay. From the three welding currents applied, the highest hardness in the weld overlay is obtained at the lowest current.
Carbon Black Doped Graphite Composite Bipolar Plate Compounds for Improving Conductivity
Authors: Yue Luo , Deng Zhan Feng , Tan Hui , Xu Gui Zhi , Hu Xiao , Song Jie , Zhang Gao Qun , Song Peng Xiang , Liu Xiao Tong
Published: January 2023

Bipolar plates are a key part of fuel cells. The optimal hot press temperature, pressure, and time were determined in this study. The press condition can directly affect the relative density, thereby improving the conductivity and mechanical property. Several carbon black doped samples were also successfully prepared on the basis of the optimized preparation method. Results show that carbon black optimized the conductivity due to the “conduction bridge”. The maximum conductivity and bending strength reached 345 S/cm and 32.5 MPa, respectively. Key words: fuel cells; bipolar plate; graphite; composite materials.
Development of pictograms for patients with diabetes at a teaching hospital in northern Sri Lanka – A pilot study
Authors: Thuvaragan S. , Rakshana J. , Surenthirakumaran R.
Published: January 2023

Purpose: Diabetes is a noncommunicable disease with a rapid increase of prevalence in low- and middle-income countries during the last decade. Pictograms can be utilized to convey information regarding the management of diabetes. This study was conducted to develop and evaluate the comprehension level of pictograms regarding lifestyle modifications and medication use in diabetes.
Methods: A mixed-method study was conducted through two phases which included the Delphi technique and a pilot study. Systematic sampling was used to select the 288 participants. Nineteen pictograms were developed and they were evaluated for their comprehension level by diabetic patients attending a teaching hospital in northern Sri Lanka. The criterion for acceptance of a pictogram was at least 85% of participants correctly interpreting the pictogram. Microsoft Excel 2019 was used to analyse data and descriptive statistics were used to present the data.
Results: Out of 19, 18 pictograms were correctly interpreted (more than 85%) by diabetic patients. A pictogram representing the prevention of hypoglycaemic attacks was not interpreted by most patients.
Conclusion: The developed pictograms could be used effectively to convey information regarding lifestyle modifications and medication usage to patients with diabetes. Further studies are needed to evaluate the comprehension level of the developed pictograms among diabetic patients in other parts of Sri Lanka.