Scientific review最新文献_第3页

ВИЯВЛЕННЯ ВІРУСНИХ «ХРОБАКІВ» ЕЛЕКТРОННОЇ ПОШТИ ЗА ДОПОМОГОЮ ВЕЙВЛЕТ-АНАЛІЗУ ПОТОКІВ ЗАПИТІВ DNS. 利用对 dns 请求流的小波分析检测电子邮件病毒蠕虫。

Scientific review Pub Date : 2023-08-27 DOI: 10.26886/2311-4517.4(89)2023.3

Кирил Гребеннік

{"title":"ВИЯВЛЕННЯ ВІРУСНИХ «ХРОБАКІВ» ЕЛЕКТРОННОЇ ПОШТИ ЗА ДОПОМОГОЮ ВЕЙВЛЕТ-АНАЛІЗУ ПОТОКІВ ЗАПИТІВ DNS.","authors":"Кирил Гребеннік","doi":"10.26886/2311-4517.4(89)2023.3","DOIUrl":"https://doi.org/10.26886/2311-4517.4(89)2023.3","url":null,"abstract":"Представлено дослідження виявлення поштових черв’яків за допомогою вейвлет-перетворень. Стаття робить крок до кращого розуміння черв'яків електронної пошти та дослідження їх впливу на рівень характеристик потоків запитів системи доменних імен (DNS), які створюють машини користувачів. Для моделювання та експериментальних обчислень використано вейвлет-аналіз, а саме дискретне та неперевне вейвлет перетворення, статистичні алгоритми кластеризації, численні методи та інші методи математичного аналізу.Ключові слова: поштові черв’яки; DNS запити; дискретне вейвлетне перетворення; вейвлет Хаара (Гаара), стиснення даних.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139348856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

СУЧАСНІ МЕТОДИ ОПТИМІЗАЦІЇ БЮДЖЕТУ РЕКЛАМНИХ КАМПАНІЙ У СОЦІАЛЬНІЙ МЕРЕЖІ FACEBOOK 优化社交网络 facebook 广告预算的现代方法

Scientific review Pub Date : 2023-08-27 DOI: 10.26886/2311-4517.4(89)2023.1

Аліса Кравченко

{"title":"СУЧАСНІ МЕТОДИ ОПТИМІЗАЦІЇ БЮДЖЕТУ РЕКЛАМНИХ КАМПАНІЙ У СОЦІАЛЬНІЙ МЕРЕЖІ FACEBOOK","authors":"Аліса Кравченко","doi":"10.26886/2311-4517.4(89)2023.1","DOIUrl":"https://doi.org/10.26886/2311-4517.4(89)2023.1","url":null,"abstract":"Стаття присвячена актуальним методам оптимізації бюджету рекламних кампаній у соціальній мережі Facebook. Необхідність дослідження теми обґрунтовано статистичним аналізом темпів приросту користувачів мережі, прогнозом монетизації платформи, капіталізацією Facebook у контексті надання бізнесам плейсменту для реалізації таргетованої реклами. Окреслено проблему відсутності стандартизованого алгоритму для різних ніш бізнесу, що допомагає досягти максимального рівня конверсії, мінливийінтерфейс платформи, нестачу поширення дієвих стратегій таргетингу як конфіденційної, прибутково-базисної інформації, якою володіють маркетингові департаменти бізнесів. Висвітлено упередження покоління X та Yдо таргетованої реклами через багатоаспектність проблеми та страх нецільового використання рекламних бюджетів від прибічників класичного маркетингу. У статті встановлено переваги цільової реклами та розглянуто основні типи таргетингу: демографічний, географічний та психологічний/ поведінковий. На базисі праць західних науковців і відкритих тренінгів фахівців Facebook (Meta) визначено актуальні методи оптимізації бюджету рекламних кампаній у соціальній мережі, доцільність їхнього застосування й можливості в контексті таргетингу: A/B тестування, Cut-out audience та Pixel. Систематизовано механізми дії зазначений методів та виділено доцільність їхнього застосування. Обґрунтовано аналітику результатів як невід’ємну частину оптимізації бюджету, розглянуто рекомендовані значення-орієнтири коефіцієнтів для досягнення максимальної конверсії за мінімальних маркетингових витрат на просування товару або послуги: Impressions, Frequency, СR, Spendings і CPM/CPT.У процесі дослідження виявлено дилему збору даних і Права людини на інтернет-приватність. Висвітлено шляхи дотримання діджитал-етики щодо налаштувань конфіденційності, використання cookies, трекінгу й зборів Big Data шляхом підписання Ліцензійної угоди з кінцевим користувачем (EULA).Ключові слова: діджитал-маркетинг, маркетинг в соціальних мережах, SMM, Facebook, таргетинг, Facebook Ads Manager, метрики ефективності, діджитал-етика, cookies.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139348889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological Differentiation and Karyotypic Studies of the African Common Toad Sclerophrys (Bufo) Regularis (Reuss, 1833) 非洲蟾蜍硬化症(Bufo) Regularis的形态分化和核型研究(Reuss, 1833)

Scientific review Pub Date : 2023-06-28 DOI: 10.32861/sr.92.15.22

Adewale A. Sorungbe, Mobolanle Oladipupo Oniya, Benjamin Oluwole Akinyele, Olusola Olasumbo Odeyemi

{"title":"Morphological Differentiation and Karyotypic Studies of the African Common Toad Sclerophrys (Bufo) Regularis (Reuss, 1833)","authors":"Adewale A. Sorungbe, Mobolanle Oladipupo Oniya, Benjamin Oluwole Akinyele, Olusola Olasumbo Odeyemi","doi":"10.32861/sr.92.15.22","DOIUrl":"https://doi.org/10.32861/sr.92.15.22","url":null,"abstract":"The study analyzed the morphological differentiation and karyotype among populations of the common toad, Sclerophrys (Bufo) regularis from six Local Government Areas in Ondo state. Variations in fifteen morphometric and qualitative characters in one hundred and seventy-one animals from six population samples were analyzed using univariate and multivariate statistics. Descriptives of sexes and correlation between morphological characters was also analyzed. Female toads had larger mean values of most of the morphological characters studied with weight contributing the largest variance. The chromosomes of twenty-four specimens of the toad were also studied using standard bone marrow smear techniques. A chromosome complement of 2n=20 was observed for this species. The chromosomes consists of nine pairs of metacentric and one pair of submetacentric chromosomes. The chromosomes based on centromeric position could be grouped into two - metacentric and submetacentric - and based on size, into three metacentric chromosomes; 1-4 which were large, metacentric chromosomes; 5-6 medium sized metacentric chromosomes, while 7-9 were small sized, and the last pair (10), submetacentric chromosomes were small. The fundamental number of this species is 40 and with no sex chromosomes or satellites reported, while bi-armed chromosomes were observed. Findings also showed that female individuals of the species weighed more than the male.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79256234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the Accuracy of Speech Recognition Models for Non-Native English Speakers using Bag-of-Words and Deep Neural Networks 利用词袋和深度神经网络提高非英语母语者语音识别模型的准确性

Scientific review Pub Date : 2023-05-13 DOI: 10.32861/sr.91.10.14

Van-An Tran, Dinh-Son Le, Ha Huy Hung, Dinh-Quan Nguyen

引用次数: 1

From Natural Compounds to Disease Treatment and Control: A Review of Nutraceuticals Vegetable Crops and their Roles in Disease Control 从天然化合物到疾病的治疗和控制:营养药品、蔬菜作物及其在疾病控制中的作用综述

Scientific review Pub Date : 2023-04-10 DOI: 10.32861/sr.91.1.9

A. G. Femi-Adepoju, Adeyinka Olufemi Adepoju, A. Jalloh, Abdul Rahman Faiyah Bah

{"title":"From Natural Compounds to Disease Treatment and Control: A Review of Nutraceuticals Vegetable Crops and their Roles in Disease Control","authors":"A. G. Femi-Adepoju, Adeyinka Olufemi Adepoju, A. Jalloh, Abdul Rahman Faiyah Bah","doi":"10.32861/sr.91.1.9","DOIUrl":"https://doi.org/10.32861/sr.91.1.9","url":null,"abstract":"In recent times, conventional medicine has become less accessible to more people either due to affordability or lack of well-equipped health facilities. Foods, and vegetables inclusive contain naturally occurring prophylactics and therapeutics with different means of preparation and accessibility but not enough reports are available on them to educate especially the poor masses on how to turn normal foods into potential drugs to save them a lot of time and money. Malnutrition and starvation with associated health problems have become a global threat and there is a need to review and create more awareness on possible access to naturally grown foods that are loaded with biologically potential active nutrients. Nutraceuticals are a group of biochemicals that are found in food substances and provide potential physiological benefits. This group of compounds presents little or no side effects due to their natural ability compared to synthetic products. This topic is aimed to investigate the various active nutraceuticals that are obtainable in vegetable crop plants. It will also expound on the disease prevention and health benefits as well as the enhancement of the overall human wellness potentials provided by vegetable crops and nutraceuticals.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76315892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of Ultrasound Propagation Velocity in Liquids Using an FPGA Module 利用FPGA模块测量超声波在液体中的传播速度

Scientific review Pub Date : 2022-10-31 DOI: 10.32861/sr.84.59.67

P. A. Contla, D. Fabián, García Nocetti, A. J. D. Ortega, Hugo Rolón Acevedo, Martín Fuentes

{"title":"Measurement of Ultrasound Propagation Velocity in Liquids Using an FPGA Module","authors":"P. A. Contla, D. Fabián, García Nocetti, A. J. D. Ortega, Hugo Rolón Acevedo, Martín Fuentes","doi":"10.32861/sr.84.59.67","DOIUrl":"https://doi.org/10.32861/sr.84.59.67","url":null,"abstract":"The design and development of an ultrasonic device for the measurement of ultrasonic propagation velocity in liquids based on Field Programmable Gate Array (FPGA) architecture is described. The device was implemented using a DE0-Nano-SoC Development Kit FPGA development module, a 2x16 LCD Display, a 2-channel quadrature output optical encoder with push button, two ultrasonic transducers and an external module for interfacing with the transducers containing the circuits corresponding to the transmitter, receiver and amplifier. For the development, the Altera Integrated Development Environment (IDE) software called Quartus II was used, which allows the logical design and supports different HDL hardware description languages, such as Verilog and VHLD. Although the device was calibrated to measure the acoustic velocity of water in the range of 35°C to 40°C, due to its design characteristics it is feasible to extend its application to measure acoustic velocity in different liquids, delimiting the operation intervals. The device acquires 100 readings per second, calculates the average with polynomial adjustment and displays the value of the ultrasonic propagation velocity in the fluid with a resolution of 0.01 [m/s] with a refresh rate of one second.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78794078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New Automobile Global Manufacturing System: Utilizing a Dual Methodology 一种新的汽车全球制造系统:运用双重方法论

Scientific review Pub Date : 2022-09-03 DOI: 10.32861/sr.83.51.58

K. Amasaka

引用次数: 0

Geopolymer Stabilization as Novel Technique of Reducing Carbon Dioxide Emissions 地聚合物稳定是一种减少二氧化碳排放的新技术

Scientific review Pub Date : 2022-07-20 DOI: 10.32861/sr.83.42.50

Christopher Ehizemhen Igibah, O. Amu, O. S. Aderinola, L. Agashua

{"title":"Geopolymer Stabilization as Novel Technique of Reducing Carbon Dioxide Emissions","authors":"Christopher Ehizemhen Igibah, O. Amu, O. S. Aderinola, L. Agashua","doi":"10.32861/sr.83.42.50","DOIUrl":"https://doi.org/10.32861/sr.83.42.50","url":null,"abstract":"The paper discusses geopolymerisation which is a chemical reaction within an alkaline solution as well as a solid reaction of both aluminium and silicon. It highlights the origin of silicates, pozzolanic composite or alumino-silicates that could be melted within alkaline solution that may be utilized as a source of geopolymers creation. Materials that possess plenty aluminium, silicon and others such as metakaolin, microsilica, pozzolanas, ashes, red mud, kaolin clay and slags can be used as raw materials with the activators to create geopolymers. Also geopolymer end product after the exothermic procedure carried out via oligomers, as well as three stages of geopolymerisation which are suspension, when hard or solid alumino-silicates matter and stuff is dissolved because of the occurrence of water together with alkali activator. After jettisoning a small quantity of water, the reorientation outsets, and then the cluster atoms take their position in the structure. In the course of the solidification at 200C (twenty Celsius degree) or higher temperature of roughly 10000C, the water (H2O) is almost absolutely jettisoned and the material displays his final look.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86464274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal Phytoplancton Variation and Cyanotoxins in a South American Reservoir 南美洲水库中的季节性植物变化和蓝藻毒素

Scientific review Pub Date : 2022-06-30 DOI: 10.32861/sr.82.38.41

Carlos H. Prosperi

引用次数: 0

Gamma Irradiation to Sterilize Active Ingredients, Consumer Foodstuffs and Beverages in Bangladesh 伽马辐照对孟加拉国的活性成分、消费食品和饮料进行消毒

Scientific review Pub Date : 2022-03-04 DOI: 10.32861/sr.81.33.37

H. Zahid, Mohammad Zahirul Islam Mollah, R. Khan

{"title":"Gamma Irradiation to Sterilize Active Ingredients, Consumer Foodstuffs and Beverages in Bangladesh","authors":"H. Zahid, Mohammad Zahirul Islam Mollah, R. Khan","doi":"10.32861/sr.81.33.37","DOIUrl":"https://doi.org/10.32861/sr.81.33.37","url":null,"abstract":"Nowadays, the utilization of gamma irradiation (e.g., Cobalt-60 source) to sterilize different materials have been increasing enormously. As terminal sterilization, gamma irradiation is being used popularly to sterilize different materials throughout Bangladesh. Compare to other conventional methods of sterilization (e.g., alpha, beta, other chemicals), this method is highly applicable for its well acceptance in the world. It has high penetration power with the short wave lengths, isothermal characteristics for its negligible rise in the temperature, no contact with any toxic chemicals without having any unirradiated portion. In this process, the assurance level of the sterility of product is far better than other aseptic processing. The chemical bonds in the microbes are broken to produce reactive oxygen species (ROS) by gamma irradiation, and attack DNA/RNA of microbes for killing. The mutations in the genetic materials (DNA/RNA) of microbes are usually happened through gamma irradiation and consequently restrict the cellular division of microbes. This characteristic of gamma ray is mostly applicable in the commercial purposes. This review discusses the general applications of gamma irradiation to the broaden arena of different materials (active pharmaceutical ingredients, consumer products, beverages etc.). A summarized description of materials those are irradiated using Cobalt-60 source in Bangladesh, in particular, at the Institute of Radiation & Polymer Technology (IRPT), Bangladesh Atomic Energy Commission, is described here. The information may further assist to enhance the dissemination of the applicability of gamma irradiation throughout Bangladesh.","PeriodicalId":86600,"journal":{"name":"Scientific review","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75005206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0