bluuebunny/crossref_metadata_2025 huggingface dataset:
Должна ли наука быть открытой?
Authors: ПОГАЧНИК Алеш , POGAČNIK Aleš
Published: January 2020

Что для исследователей означает понятие «открытая наука»? Опрос ученых Научно-исследовательского центра Словенской академии наук и искусств предполагает некоторые интересные выводы, в частности связанные с гуманитарными науками. Судя по ответам, большинство исследователей выступает за открытую науку как за личное убеждение. Однако когда дело касается издания своей собственной работы, едва ли кто-то откажется публиковаться при некоторых базовых условиях открытой науки (принятие, коммерческое использование). Более того, исследователи одобряют электронные библиотеки на основе подписки, хотя и допускают использование других методов, например, «находчивость», чтобы получить доступ к научным статьям. Они бы предпочли не платить за публикацию или приобретение электронной статьи коллеги-ученого. Исследователи читают преимущественно на английском языке, а вторым языком их научной литературы является словенский (по степени предпочтения любому другому языку). Даже самая эффективная возрастная группа (40-50 лет) больше занимается написанием (подготовкой) статей, чем рецензированием. Ученые не поддерживают открытые рецензии, хотя считают, что рецензии очень важны; по их мнению, рецензирование должно включаться в оценку их работы. Опрос и его результаты представляют небольшой пример одной европейской страны, но дают четкое и универсальное послание (сигнал): что такое открытая наука еще следует определить.
ТЕХНОЛОГИЯ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ В ГЕОИНФОРМАЦИОННОМ МОНИТОРИНГЕ
Authors: Крапивин В.Ф. , Krapivin V.F. , Мкртчян Ф.А. , Mkrtchyan F.A.
Published: January 2020

Обсуждены вопросы дистанционного мониторинга объектов окружающей среды. Основное внимание обращено на микроволновый диапазон электромагнитных излучений. Охарактеризованы теоретические основы радиофизического зондирования наземных экосистем и температурных аномалий на земной поверхности. Рассмотрена микроволновая модель лесного покрова как слоистой среды. Указаны взаимосвязи глобальных процессов в системе климат-биосфераобщество. Отмечены особенности биогеохимических циклов парниковых газов. Данная работа выполнена в рамках госзадания №0030-2015-0195.
Deteksi Dini Peningkatan Glukosa Dalam Darah di RW 07 Kelurahan Pekayon, Pasar Rebo
Authors: Agustina Dwi
Published: January 2020

Diabetes Mellitus is one of the chronic illness. DM is metabolic diseases with characteristic hyperglycemia that occur di to abnormal insulin secretion, insulin performance or both (ADA, 2010). Depend on PERKENI (2011), complication of DM occur from uncontrolled blood glucose level, such as neuropathy, hypertension, coronary heart disease, retinopathy, nephropathy and gangrene. The people who have high risk of DM are high-carbohydrate diets, have a family history of diabetes Mellitus. there for we need to early detection to be prevention became Diabetes Mellitus disease. Early detection of activities of patients with DM are held at RW 07 due to DM risk faktor that occur in that area. Community Service Activities were carried out on Wednesday, March 23, 2016 at the RW 07 Pekayon village meeting hall. Activities include measuring glucose level and counseling. For the results of early detection blood glucose level, it was found that 56 out of 82 residents experienced and increase in blood glucose level (68%). Most of them carry out consultations related to diet and Diabetes Mellitus family history
Edukasi, Pelatihan Evidence-Based Practice In Nursing, dan Evaluasi Pelaksanaan 7 (Tujuh) Benar Pemberian Obat
Authors: Rahayu Sri , Fajarini Melati
Published: January 2020

ABSTRACT Nursing practice based on scientific evidence or commonly known as                     Evidence-Based Practice in Nursing is still an interesting trend and issue in Indonesia. This is still something new for nurses because almost the majority of nursing practice based on hospital Standard Operational Procedure (SOP). In fact, the SOP is not all of nursing practice based on scientific evidence. One of the practice of nursing is medication administration which is need to collaboration with the doctor. Therefore, it is necessary to evaluate the administration of 7 (seven) rights of medication. The expected output target is to increase knowledge, and understanding of evidence based practice in nursing in the administration of 7 (seven) rights of medication. The method used education, training, and evaluation of the implementation of 7 rights of medication. The results showed that the majority of nurses had knowledge of 7 rights of medication were 63.3%, and evaluation by direct observations about the implementation of 7 rights of medication were between 50-100%. Furthermore, nurses are expected to be able to evaluate independently and continuously by using the same minimum method or developing it to get accurate data.
LAYANAN E-COMMERCE PENJUALAN PAKAIAN BERBASIS WEB DENGAN PENERAPAN CUSTOMER RELATIONSHIP MANAGEMENT
Authors: Tudenga Heldi Diana , Malelak Yohanis
Published: January 2020

badi Collection Shop is a business entity engaged in the sale of clothing located on the roadRoundabout PU Tuak Daun Merah II. In conducting its business processes the Abadi Collection Shopstill uses the conventional mechanism, the customer must come directly to the outlet to see and searchfor products sold by Abadi Collection Shop. In order to support the business run by Abadi CollectionShop, the existence of customers is not only a source of company income but also as a long term assetthat needs to be managed and maintained through Customer Relationship Management. The purposeof this research is to design and build an Application Service E-commerce Web Based Clothing Salesby applying Customer Relationship Management at Abadi Collection Shop. Data collecting method bywriter is literature study, observation and interview, tool of analysis of system design in the form ofdocument flow, context diagram, data flow diagram, and proposed database of entity relationshipdiagram. While making the software in this thesis, the writer uses PHP and Adobe Dreamwaver CS6and MySQL database. The results of this study system designed to support order transactions as wellas a promotional event that can facilitate customers in communication and provide input for AbadiCollection Shop.
ANALISIS SPASIAL PERSEBARAN REKLAME
Authors: Gunanto Gunanto , Fudholi Dhomas Hatta , Iswari Lizda
Published: January 2020

Regional autonomy is the surrender of authority from the center to the regions to regulate and manage the interests of the local community according to their own initiatives based on the aspirations of the people, as stated in Law No. 32 of 2004 concerning Regional Government. With the existence of regional autonomy, the regional government is expected to be better to explore the potential of local revenue sources in financing all regional development activities through increasing Original Local Government Revenue (OLGR). One component of OLGL that has a contribution in Pekalongan Regency is Regional Tax. Regional tax, one of which is advertisement tax, is one component of the OLGL that contributes to regional development. Clustering algorithm, one of which is k-means clustering can be applied to advertisement tax data so that it can be known that ad grouping is based on distance from the market, distance to traffic light and vehicle volume. From each of these groupings can also be seen each of the characteristics so that it is known which groups have the largest amount of tax and the number of tax donations. From this research, a web-based system has been successfully developed that is able to process the spatial analysis of the distribution of billboards with the clustering method in Pekalongan Regency. From the results of clustering analysis, it can be seen that the Subdistrict passed by the coastline has a correlation with the high amount of advertisement tax in Pekalongan Regency, this can be seen in the results of clustering using the k-means algorithm, where advertisements are in clusters that have average quantities the highest taxes are all in the sub-district that is crossed by north coast way. The closeness to the market and traffic light has a correlation with the high amount of billboard bill advertising tax in Pekalongan Regency, wherein the clusters that have the highest volume of vehicles the average size of the billboard tax is high.
ANALISIS, PERANCANGAN & IMPLEMENTASI APLIKASI E-COMMERCE BERBASIS WEB DI TOKO ABON ROJOKOYO
Authors: Isroni Muhammad , Setiawati Donna , Fariyono Fariyono
Published: January 2020

The title of this reseacrh is the analysis, design, and implementation of E-Commerce applications with web contents in the Abon Rojokoyo store to support marketing and promotion. With the application of E-Commerce can have a positive impact on the store, especially making it easier for consumers to shop anywhere and anytime. The method used in this study is the Waterfall method, which describes a systematic and sequential approach to software development.Starting with the analysis of the needs of the company or store, then proceeding through the stages of system design or design, coding/writing program code and finally the implementation / implementation of the program code. In making the website using the PHP (Hypertext Propocecos) programming language, the Apche server and the Mysql database that have been provided in the Xamp software. For  the results achieved is an E-commerce web  to support marketing and promotion systems and facilitate consumers in purchasing products.
Perancangan Prototipe Perangkat Lunak Expert System Dengan Metode Backward Chaining Untuk Membantu Proses Pemeriksaan Antenatal Di Tingkat Pelayanan Dasar
Authors: Winarsih S.M. Santi , Palupi Retno
Published: January 2020

Antenatal care at the Basic Service Level is defined antenatal checks will be undertaken to examine the circumstances of the mother and fetus at regular intervals, followed by an attempt correction of deviations found. The goal is to keep pregnant women can go through pregnancy, childbirth and post-partum properly and safely, and to produce a healthy baby.Procees Antenatal still done manually and is very dependent on the health workers so that the necessary software that can help this problem.  The present study emphasizes the design of a prototype expert system software to assist in the level of antenatal examination of basic services.The purpose of this research is to make protitipe design software in order to help workers in antenatal care at the level of basic services.The method used in the design of a prototype expert system software that helps antenatal checks the method used in the design of a prototype expert system software to assist in the level of antenatal examination of basic services. The stages are done systematically in this study is a study phase began with a reference library to find supporters then gathered data, to identify and to determine the extent of the problem konseptualisiasi and experts involved, then formalize the knowledge base includes the manufacture of that relate to the topic, determining ie backward chaining inference method, followed by the drafting of a database, and then to design new prototype expert system software with backward chaining method that can assist antenatal examination in basic service level.

Keywords: expert systems, antenatal, backward chaining
ANALISIS KOMUNIKASI PEMASARAN DALAM MENARIK PENGUNJUNG (STUDI PADA KAMPOENG KOPI BANARAN, PT. PERKEBUNAN NUSANTARA IX KABUPATEN SEMARANG)
Authors: SIPAYUNG EUNIKE , PRIYANTO SONY HERU
Published: January 2020

This research was conducted in Kampoeng Kopi Banaran (Kakoba), an agrotourism owned by PT. Perkebunan Nusantara IX (Persero) located in the area of coffee plantation Getas Afdeling Assinan, Jl. Raya Semarang – Solo KM 1,5. Thisresearch aims to: (1) knowing Kakoba’s marketing communication (2) knowing the changing and factors affecting Kakoba’s marketing communications(3) knowing the impact of Kakoba’s marketing communication changes in attracting visitors. This research was conducted on February – March 2018. The participants of this research were the management of Kakoba. Data collection techniques used were observation, interviews, and study documentation.This study used a qualitative approach with descriptive design.The research results explain Kakoba marketing communication strategies are: advertising, direct marketing, and sales promotion. There is one discovery about marketing communication strategy: private relation. There are other types of communication: physical environment and quality of services that support the delivery of messages to visitors. Factors affecting the changing of marketing communications in Kampoeng Kopi Banaran is technology and information, as well as the better assessment and consumer knowledge. The impact of agrotourism marketing communication changes in Kakoba is the increasing number of visitors from year to year.
СТРУКТУРНИЙ АНАЛІЗ СКЛАДНИХ МЕХАНІЗМІВ ТРЕТЬОГО ТА ЧЕТВЕРТОГО КЛАСІВ
Authors: С.О. Кошель  , Г.В. Кошель
Published: January 2020

Розглянуто структурне дослідження складних плоских механізмів третього та четвертого класі зі степенем вільності W=1, що базуються на основі різних можливих видів структурних групи третього та четвертого класу, які ураховують кількість і певний характер кінематичних пар та їх місце розташування в групі. Структурний аналіз зроблено за допомогою способу умовної зміни ведучої ланки механізму, який дозволяє отримати формули будов кінематично-еквівалентних механізмів другого або третього класів, що дозволяє з’ясувати послідовність визначення кінематичних параметрів точок та ланок механізмів відповідного класу, спростити кінематичний аналіз та збільшити точність результатів дослідження.
ЕТАПИ ЕВОЛЮЦІЇ ТВОРЧОГО МИСЛЕННЯ З ЕЛЕМЕНТАМИ ШТУЧНОГО ІНТЕЛЕКТУ НА ПРИКЛАДІ СИНТЕЗУ ЦАНГОВИХ ПАТРОНІВ
Authors: Ю.М. Кузнєцов
Published: January 2020

Наведена історія поступового нарощування елементів штучного інтелекту в процесі творчого мислення при створенні принципово нових структур і схем затискних патронів на прикладі цангових. Процес мислення на останніх етапах використання штучного інтелекту представлений у вигляді двійкового коду і хвиль частотних імпульсів, що нагадують роботу мозку людини з виникненням резонансних явищ.
ВПЛИВ ЗМІНИ КОЕФІЦІЄНТА РОЗПОДІЛУ ГАЛЬМІВНИХ СИЛ У ПРОЦЕСІ ЕКСПЛУАТАЦІЇ НА ЕФЕКТИВНІСТЬ ГАЛЬМУВАННЯ ДВОВІСНИХ АВТОМОБІЛІВ
Authors: О.І. Назаров  , І.О. Назаров  , Є.М. Шпинда  , М.І. Мисюра  , В.Б. Коханенко
Published: January 2020

Розглядаються питання, пов'язані з впливом зміни коефіцієнта розподілу гальмівних сил між осями легкового автомобіля Lanos у різному ваговому стані на величину відносної зміни уповільнення в процесі експлуатації і вибором раціонального його значення. Вибір такого коефіцієнта розподілу гальмівних сил, відповідно до уточненої теорії, дозволить при екстрених гальмуваннях на сухому асфальтобетоні створити умови для реалізації більшого гальмівного моменту на колесах задньої осі автомобіля.
ЗАСТОСУВАННЯ МЕРЕЖИВА ДЛЯ ДЕКОРУВАННЯ СУЧАСНОГО ЖІНОЧОГО ОДЯГУ
Authors: Л.В. Назарчук  , О.Л. Ткачук  , Л.М. Метельська
Published: January 2020

В статті розглянуто способи застосування мережива для декорування жіночого одягу. Проведено дослідження з визначення показників, що характеризують фізико-механічні властивості мережива. В результаті проведених випробувань встановлено, що особливості застосування мережива залежать від його властивостей, виду та елементу одягу.
СТРУКТУРА, МІНЕРАЛЬНИЙ ТА ХІМІЧНИЙ СКЛАД СЕЧОВОГО КАМІННЯ
Authors: О.О. Підмурняк  , А.Я. Ганзюк  , О.І. Стремецький
Published: January 2020

Інтерпретовано ІЧ-спектри досліджуваних конкрементів та встановлено їх мінералогічний склад. Відношення каменів змішаного типу до тої чи іншої групи проводили по основній компоненті, яка становить більше 50% всієї мінеральної основи. Досліджено поверхні зразків уратного каміння за допомогою атомно-силової мікроскопії; отримано 2D i 3D фото, оцінено розміри наночастинок, що входять до їх складу. Рентгеноструктурний аналіз підтвердив мінералогічний склад уратного каміння, який взаємопов'язаний з результатами ІЧ-спектроскопії. Проаналізовано показники елементного складу конкрементів, які корелюють зїх мінералогічним складом згідно з результатів ІЧ-спектроскопії. Охарактеризовано основні фізико-хімічні показники води та встановлено кореляцію між ними та мінералогічним складом досліджуваного уратного каміння. Використання сучасних методів аналізу, а саме: рентгеноструктурного, рентгенофлуорисцентного, ІЧ-спектроскопії, атомно-силової спектроскопії дає можливість оцінити структуру, хімічний та мінералогічний склад досліджуваних конкрементів.
ПРОПОЗИЦІЇ З УДОСКОНАЛЕННЯ АВТОТЕХНІЧНИХ ЕКСПЕРТИЗ ДОРОЖНЬО-ТРАНСПОРТНИХ ПРИГОД
Authors: М.В. Скляров  , С.С. Лукашенко  , О.В. Корнєв
Published: January 2020

Забезпечення безаварійної експлуатації автомобільного транспорту стала однією з актуальних проблем суспільства. Ефективність роботи по зменшенню аварійності визначається їх повним і всебічним аналізом.
Знаючи причини дорожньо-транспортних пригод (ДТП) можна запропонувати засоби, спрямовані на їх усунення. Недостатність елементарних понять в області автотехнічної експертизи послаблюють ефективність профілактики ДТП.
В зв’язку з цим в роботі проведено теоретичний аналіз проблем вдосконалення автотехнічних експертиз.
ОСУШКА ПОВІТРЯ В ПЕРЕДСТАРТОВИХ СИСТЕМАХ ТЕРМОСТАТУВАННЯ ДО НЕОБХІДНОЇ ТОЧКИ РОСИ
Authors: Є.І. Трушляков  , С.С. Булавка
Published: January 2020

У роботі виконано розгляд, аналіз та можливості осушки повітря в передстартових системах термостатування до необхідної точки роси. У випадку незначного підвищення тиску, з’являється можливість ефективно використовувати фреонові холодильні машини для осушення повітря до точки роси нижче 0°С, замість традиційних фізико-хімічних осушувачів або осушувачів повітря високого тиску в стартових системах термостатування космічних ракетних комплексів.
МЕТОДИКА ОЦІНКИ СОЦІАЛЬНОГО ЕФЕКТУ ВІД ОРГАНІЗАЦІЇ РОБОТИ МІСЬКОГО ПАСАЖИРСЬКОГО ТРАНСПОРТУ ЗА ВІДОМИМ ДЛЯ ПАСАЖИРІВ РОЗКЛАДОМ РУХУ
Authors: В.М. Чижик  , Є.В. Любий  , Ю.Ю. Дрига
Published: January 2020

Проблема витрат часу очікування пасажирами транспортного засобу на зупиночному пункті є актуальною для кожного мешканця міста, який користується громадським транспортом. Розробка аналітичної залежності є теоретичною базою для проведення оцінки ефективності функціонування маршрутних мереж міст в цілому та, зокрема, дозволяє надати кількісну оцінку заходів, спрямованих на скорочення фази очікування під час здійснення пасажирами пересувань. При впровадженні технології обслуговування пасажирів громадським транспортом який працює заздалегідь відомим для них розкладом руху, час очікування буде залежати виключно від кожного користувача міського пасажирського транспорту та його індивідуального ставлення до поїздки в цілому, що дозволяє мінімізувати як самі витрати часу, так і негативне сприйняття цих витрат.
ОТРИМАННЯ БАЗАЛЬТОВИХ МОДИФІКОВАНИХ В2О3 ВОЛОКОН ДЛЯ РАДІАЦІЙНОГО ЗАХИСТУ
Authors: Ю.М. Чувашов  , І.І. Дідук  , О.М. Ященко  , В.І. Гулік  , Н.І. Кошеленко
Published: January 2020

Досліджено вплив добавок В2О3 на властивості базальтових розплавів і волокон для радіаційного захисту у вигляді базальтофібробетону.
РЕЗУЛЬТАТИ ЕКСПЕРИМЕНТАЛЬНИХ ДОСЛІДЖЕНЬ ВЕЛИЧИНИ КРУТНОГО МОМЕНТУ ПРИ ПЕРЕВАНТАЖЕННІ ТЕЛЕСКОПІЧНИМ ГВИНТОВИМ ТРАНСПОРТЕРОМ СІЛЬСЬКОГОСПОДАРСЬКИХ ВАНТАЖІВ
Authors: В.З. Гудь  , А.І. Пік  , М.Г. Левкович  , В.В. Гупка
Published: January 2020

Розроблено експериментальне обладнання для проведення досліджень телескопічних гвинтових транспортерів, з допомогою якого проведено дослідження даного конвеєра згідно розроблених методик. В результаті проведених досліджень було встановлено, що найбільшою проблемою в телескопічних гвинтових транспортерах є збереження однакового зазору між кожухом та спіраллю в різних секціях телескопа. Для визначення впливу конструктивних і кінематичних параметрів телескопічного гвинтового транспортера на крутний момент приводу шнека під час транспортування кукурудзи, пшениці та комбікорму проведено повнофакторні експерименти. Було визначено величину крутного моменту на приводі шнека телескопічного гвинтового транспортера від зміни трьох основних факторів: частоти обертання шнека, довжини видовження шнека та кута нахилу транспортера. Виведено рівняння регресії крутного моменту залежно від зміни частоти обертання шнека, довжини видовження шнека, кута нахилу транспортера. Результати експериментальних досліджень величини крутного моменту при перевантаженні телескопічним гвинтовим транспортером показали, що основними факторами, які впливають на збільшення крутного моменту на приводі, є частота обертання шнека і довжина його видовження, а також комбінація цих факторів.
The Vibration Study of DAMMAR Based Composite Bars by Using a New Euler-Bernoulli Theory
Authors: Bolcu Dumitru , Stanescu Marius Marinel , Ciuca Ion , Miritoiu Cosmin Mihai , Bolcu Alexandru , Ciocoi Robert
Published: January 2020

In the paper, a new Euler-Bernoulli theory is presented, in which the bars eigenpulsations with rectangular section increase with the ratio between the bar width and thickness. This theory is experimentally verified for composite bars made of Dammar reinforced with cotton and flax plus one or two layers of fiber glass fabric. For the considered bars, we have experimentally determined the eigenfrequencies and the damping factor values. We have experimentally determined the Young modulus and breaking strength for the used resin and the obtained composites.
Studies and Research on the Electrical Resistance of the Polyethylene Insulation Used for the Chemical Protection of the Steel Pipelines Intended for the Natural Gas Distribution
Authors: Filip Stefan Mihai , Ripeanu Razvan George , Avrigean Eugen
Published: January 2020

The paper aims to find solutions to some of the problems the staff operating the natural gas networks have to face, which are the low, medium and high pressure, and the corrosion of the steel pipelines. This metal corrosion can be dealt with by insulating it through various procedures, the latest being the different thickness polyethylene strips insulation. The goal of the paper is to observe the insulation areas on the pipeline which can be destroyed by mechanical factors during operation and the method of remedying these faults with high density polyethylene strips.
Mechanical Properties and Fatigue Performances on Sandwich Structures with CFRP Skin and Nomex Honeycomb Core
Authors: Zaharia Sebastian Marian , Pop Mihai Alin , Semenescu Augustin , Florea Bogdan , Chivu Oana Roxana
Published: January 2020

Composite sandwich structures with Nomex honeycomb core are commonly used in industrial applications. This paper was focused on the study of the mechanical properties of sandwich structures with CFRP (carbon fibre reinforced polymer) skin and a phenolic resin-impregnated aramid paper core, known as Nomex. The paper analyzes behaviour and determines the mechanical properties of the CFRP-Nomex specimens to different types of tests, such as: three - point bending, compression, impact. The exceptional fatigue resistance of the composite structures is responsible for their success in a variety of industrial applications. For this reason, in this paper were implemented accelerated testing techniques for CFRP-Nomex sandwich structures, resulting in a significant reduction of the test time (of 13.9 times). The main indicator that was determined using the accelerated testing methodology was the mean life that has value of 268554 cycles.
The Influence of Cervical Cavity Shape on the Restoration Material Retention. A finite element method study
Authors: Florescu Anamaria , Manea Stefan , Hancu Violeta , Manu Roxana , Biclesanu Cornelia Florentina
Published: January 2020

Present study examines, by means of finite element method, the influence of cervical cavity shape on tensions distribution caused by occlusal overload of the teeth with abfraction lesion. Same force values are applied to four 3-D lower premolar finite element models, representing four different cavity shapes. An extracted lower premolar which presented an abfraction lesion has been used. The restoration was achieved by using ER adhesive systems and Giomers. The premolar was scanned and the resulting sections were processed and converted into a 3D digital format. Thus, a model of finite elements which presented a restored wedge-shaped cavity in the cervical dental area was obtained. Then, by modifying the shape and dimensions, there were created another 3 modified-shape cavities. Forces of different magnitudes (45-150N), exerted at a 45 degree angle on buccal cusp, have been applied. A wedge-shaped cavity with a short occlusal side does not show tension in the cervical region, nor in the distal angle of the restoration up to a force of 100N. So, in order to increase the retention of the abfraction restoration, changing the shape of the cavity could be the treatment of choice. Clinical relevance In order to avoid costly and unethical research, by means of FEM, different shapes of cervical cavities were easily created and conditions that influence retention of abfraction restoration were tested.
Textile Polypropylene Allografts and their Postoperative Tissue Reaction in the Surgery of Inguinal Hernia
Authors: Bratu Dan , Boicean Adrian , Tanasescu Ciprian , Sofariu Ciprian , Mihetiu Alin , Cernusca Mitariu Ioan Sebastian , Ognean Livia , Moldovan Cosmin , Boitor Cornel
Published: January 2020

The usage of prosthetic devices in the surgery of parietal defect is, nowadays, essential for a good abdominal wall recovery and prevention of the hernia recurrence. A good and suitable textile allograft should poses one or more, ideally all, of the following characteristics: pliable, strong, non-allergenic and with perfect tissue integration behavior. The aim of this paper is to evaluate the immediate and long term tissue reaction of different textile allografts used in open surgery of inguinal hernia repair.
Epoxy Composites Based on Resins Having High Flexibility Reinforced with Functionalized Carbon Nanotubes
Authors: Ladaniuc Magdalena Adriana , Hubca Gheorghe , Gabor Raluca , Nicolae Cristian Andi , Alexandrescu Elvira , San Teodor
Published: January 2020

The present paper was aimed at achieving a study on carbon nanotubes-reinforced composites and involved obtaining and characterization of composites based on epoxy compounds modified with hydroxyl groups-containing compounds (glycols). In order to obtain high flexibility epoxy resins-based composites, carboxyl- functionalized MWCNTs were used as filler at a concentration of 0.5 %. The influence of the weight concentration in CNTs on the mechanical and thermo -mechanical properties of the epoxy compounds was evaluated in comparison to mechanical properties of the DGEBA standard composites reinforced with 0.5 % MWCNT.
Anatomical Structures Preservation Using Plastination Techniques
Authors: Bolintineanu Sorin Lucian , Pop Elena , Stancu George , Stancu Gheorghe , Vaida Monica Adriana , Sisu Alina Maria , Patrascu Jenel Marian , Florescu Sorin
Published: January 2020

A constant situation present in the anatomy laboratories is represented by the cadavers preservation resulted from dissection. The main requirement for this process is the use of formaldehyde which is a toxic substance probably included in the class of carcinogenic substances. Large specimens resulted from dissection process, such as limbs or trunks, can be preserved only in large containers filled with formaldehyde and for limited periods of time. To remove these issues we used the anatomy laboratory in order to be able to preserve the first sustainable plastinated anatomical specimens. In our study have been used 8 adult human bodies (partial and complete), 6 females and 2 males, aged between 62 and 73. We have removed and dissected brains, upper limbs, kidneys and livers. They have undergone preservation process of plastination.
Friction and Wear Behaviour of Composite Materials Containing Organic Components
Authors: Socalici Ana , Ardelean Erika , Pascu Liviu , Putan Vasile
Published: January 2020

The paper presents the experiments performed in the laboratory and the results obtained on friction and wear behaviour of the composite materials for the manufacture of brake shoes used for driving and towed rolling stock. The tribological research of these samples made of composite material with organic components aimed to determine the influence of certain material factors and operating regime parameters on the tribological properties of the tested samples. The brake shoes made of composite materials oneusesto replace the conventional cast iron brake shoes, to reduce the noise. The future research will focus on finding composite materials with superior properties compared to the currently used ones, and lower costs.
Studying the Influence of Temperatures, Used for Processing ABS, PA 6.6 and POM, on Certain Electrical Properties, when Injection Moulding Items for the Automotive Industry, by Methods Employed for Determining Relative Permittivity and the Dielectric Dissipation Factor
Authors: Novac Ovidiu Constantin , Maries Gheorghe Radu Emil , Chira Dan , Novac Mihaela
Published: January 2020

This paper analyses the influence of processing temperatures of acrylonitrile butadiene styrene (ABS), polyamide 6.6 (PA 6.6) and polyoxymethylene (POM) on some electrical properties when injecting items used in the automotive industry. The ABS specimens were made at the following injection temperatures: 220, 230, 240 and 250�C. The PA 6.6 specimens were made at the following injection temperatures: 280, 290, 300, 310 and 320�C. The POM specimens were made at the following injection temperatures: 180, 190, 200, and 210�C. The determination of electrical properties were carried out using the methods for determining the relative permittivity and the dielectric dissipation factor using zero method with Schering bridge. It was found in the three polymers analysed that the temperature rise processing by injection leads to insignificant changes in relative permittivity (er) and dielectric dissipation factor (tgd).
Polymer Ligating Clips in Urologic Laparoscopic Surgery
Authors: Grigore Nicolae , Pirvut Valentin , Mihai Ionela , Cernusca Mitariu Sebastian Ioan , Sava Mihai , Hasegan Adrian
Published: January 2020

Introducing polymer ligating clips (PLC) or Hem-o-lok clips was a useful alternative to titanium clips in order to perform a safe, efficient and rapid ligation of the vascular structures during laparoscopic and/or conventional surgical procedures. In urologic surgery they are useful during ablative laparoscopic surgery for renal tumor, urothelial tumors, non-functional kidney, bladder tumors and prostate tumors. Polymers� properties depend on the structure of molecules and vary from flexible substances to expandable rigid materials. They have a high resistance to shock, considerable abrasion resistance and precise durability. Polymers can easily take the desired shape, due to different processing modes. They also have the property of resistance to sustainable action of external forces. The aim of this paper is to evaluate the efficacy and safety of PLC used during renal pedicle ligation in retroperitoneal laparoscopic nephrectomy for renal tumors, high urothelial tumors and nonfunctional kidney.
Postoperative Clinical Evolution of Edentulous Patients Treated by Guided Bone Regeneration Using Xenograft Bone Substitute and Collagen Membrane
Authors: Forna Doriana Agop , Forna Norina Consuela , Earar Kamel , Popescu Eugenia
Published: January 2020

This paper aims to assess the postoperative evolution of edentulous patients treated by guided bone regeneration technique using a xenograft bone substitute (Cerabone) and collagen membrane. A group of 40 patients, programmed for guided bone regeneration, randomly divided between laser-assisted technique and scalpel technique, were investigated to compare the postoperative evolution, healing time and prevalence of new bone formation, graft stability and inflammatory reactions. The guided bone regeneration technique associated with laser or scalpel technique offers reliable and predictable treatment results in the implant-prosthetic treatments. The accelerated healing time recommends the laser technique in the surgical procedures used for the alveolar augmentation.
The Resistance to the Action of Molds of Some Painting Materials Aged by Thermal Cycling and Exposed to an Electrical Field of 50 Hz
Authors: Caramitu Alina , Butoi Nicoleta , Rus Traian , Luchian Ana Maria , Mitrea Sorina
Published: January 2020

In order to evaluate the durability of paint layers exposed to simultaneous action of climatic and electrical stresses, the influence of 50 Hz electrical field and of aging by thermal cycling on the resistance to the action of molds of some painting materials was evaluated by specific microbiological determinations. Comparative measurements were carried out on initial paint samples and samples aged by applying of 1000 successive thermal cycles (between -38oC and 85oC, with the duration of a cycle of 90 min), exposed to Czapek-Dox culture media (with and without sucrose), inoculated with a salt solution containing approximately 106 mold spores (of 10 different species), and incubated at 30�2oC and RH 90�5%. It was found that for the samples exposed to a controlled field of 5V/cm and 50Hz the resistance to the action of molds is almost two times less than in the absence of the disruptive electric field. Also, it was noticed that the field of 5V/cm and 50Hz stimulates the growth of Aspergillus niger, but completely inhibit those of Trichoderma viride and Aspergillus flavus.
Scanning Electron Microscope Analysis of Titanium Alloy Orthodontic Implants
Authors: Vlasa Alexandru , Biris Carmen , Lazar Luminita , Bud Anamaria , Bud Eugen , Varlam Cristina Molnar , Maris Marius , Pacurar Mariana
Published: January 2020

According to titanium s much higher hardness and strength compared with the bone, if correctly applied, mini-screws will suffer no damage. Reusing orthodontic mini-screws would reduce treatment cost and lead to more use of mini-screws and improvement of orthodontic treatments. In this study, scanning electron microscopy (SEM) was used to assess structural variations of retrieved orthodontic implants and to evaluate the mechanical properties that may adversely affect stability of orthodontic implants. For analisys 10 self-drilling mini-implants retrieved after treatment, made from commercially pure (CP) alpha-titanium from two brands Leone, Italy and ForestaDent, Germany were analised using SEM according to the degree of morphological deformation of the head, transmucosal neck, threaded body, and tip of the implant at up to 10,000 x light magnification. The mini-implants did not present any defects such as bubbles, imperfections or fissures in their internal microstructure. No significant marks resulting from the manufacturing process were observed. Surface irregularities in the threaded body and tip (fig. 5-7) were observed and significant tip deformation was evident in the majority (80%) of retrieved mini-implants.
Research Regarding Dynamics of Chemical Content from Pasteurized Egg Melange Stored in Polyethylene Type Packings
Authors: Ratu Roxana Nicoleta , Usturoi Marius Giorgi , Simeanu Daniel , Simeanu Cristina , Usturoi Alexandru , Dolis Marius Gheorghe
Published: January 2020

n the current paper, we aimed to analyze the way in which packing (different polyethylene types) influence the quality of pasteurized melange during storage, packing being realized in units of 1 kg (Tetra Pak) (batch Lexp-1) and units of 5 kg (Bag in box) (batch Lexp-2). Products were stored during a period of 28 days at a temperature of +4�C, qualitative determinations being realized in first day (day 0), at 7 days, at 14 days, 21 days and in day 28 of storage. Were effectuated a sensorial examination and chemical analysis were was established the content in dry matter (%), water (%), proteins (%), content in essential amino acids (isoleucine, methionine, tryptophan, phenylalanine) and non-essential amino acids (alanine, histidine, glycine, serine) (mg/100g) as well as the content in lipids (%) establishing their profile by identification of some saturated fatty acids (16:0 mg/100g and 18:0 mg/100g) and unsaturated fatty acids (16:1 mg/100g and 18:1 mg/100g). After sensorial examinations, the first modifications were observed at the checking effectuated in day 21 for batch Lexp-2, the obtained score being of 18 points, and at checking effectuated in day 28 was given a score of 18 points for melange belonging to batch Lexp-1 and only 14 points for melange from batch Lexp-2. Differences were recorded also in case of chemical composition of products, so for protein content at batch Lexp-1 in first checking day was obtained a mean of 12.730�0.24% and at batch Lexp-2 12.614�0.22%. Differences between those two batches were insignificant (p[0.05). In case of fat content, at the end of storage period was obtained a mean of 11.256�0.06% for batch Lexp-1 and 11.244�0.11% for batch Lexp-2, differences being insignificant (p [ 0.05). Regarding the profile of amino acids and fatty acids, the mean values obtained during whole storage period oscillated from one stage to another, but the differences between those two batches were insignificant (p [ 0.05). Pasteurized egg melange suffers certain sensorial modifications during storage, especially on consistency and colouring, modifications which are accentuated mainly by storage conditions. Type of polyethylene utilized for this product hadn�t influenced the nutritive qualities of product.
Influence of Packaging Type on the Dynamics of Powdered Eggs Chemical Composition
Authors: Usturoi Alexandru , Simeanu Cristina , Usturoi Marius Giorgi , Dolis Marius Gheorghe , Ratu Roxana Nicoleta , Simeanu Daniel
Published: January 2020

The aim of the study was to investigate the dynamics of the main chemical compounds in the powdered eggs stored under constant environmental conditions (temperature=10�0.5oC; relative humidity=65�1%) and packaged in bags made of different plastic fabric (Lc group = high density polyethylene - HDPE; Lexp group = low density polyethylene - LDPE). The assessments were run to measure the inner water and dry matter contents, as well as the ash, proteins, lipids and nitrogen free extract levels. The analysis of data gathered throughout 90 days of storage suggested that the product packaged in low density polyethylene bags - LDPE (Lexp group) absorbed +0.82% humidity from the environment, compared to Lc group (highly significant differences), lost 0.41% from its initial proteins level and 0.59% of the nitrogen free extract, while lipids and ash values were not affected by the experimental factor (different package). Consequently, it might be concluded that the type and quality of the utilised package could significantly influence the proximate chemical composition, due to the transfers from the outer storage environment toward the inner volume of the package, whose intensity is given by the direct influence of the barrier features of the fabric the packages are made of.
Bone Substitutes Used in Guided Bone Regeneration Technique. Review
Authors: Popescu Eugenia , Forna Doriana Agop , Earar Kamel , Forna Norina Consuela
Published: January 2020

This paper aims to synthesize the main categories of biomaterials (bone substitutes, collagen membranes) used in the reconstruction of oral bone defects and alveolar augmentation by guided bone regeneration technique. The review of literature data shows that guided bone regeneration technique offers reliable and predictable results in the implant-prosthetic treatments.
A comparative Study Between the Costs of Polymer Based Rapid Prototyping and Steel Based Manufacture
Authors: Nedelcu Dorian , Bara Aurel , Pellac Adrian , Bogdan Sorin Laurentiu
Published: January 2020

The Pelton turbines convert hydraulic energy into mechanical energy, through the Pelton runner, by using high heads and small discharges. The runner has a complex geometry, described in drawings by transversal and longitudinal sections that form continuous surfaces. The SolidWorks software was used to design two Pelton runners: the R1 runner with 21 buckets and the R2 runner with 19 buckets. The runners were made of polymeric materials through the Rapid Prototyping process, using the Objet Desktop 3D printer, which is based on the Objet PolyJet technology, with a layer thickness of 28 microns [1]. The runners were used to measure the hydrodynamic characteristics of a Pelton microturbine on a test rig. The paper aims to highlight the advantages of the Rapid Prototyping process compared to the traditional technology used to manufacture Pelton runners that are intended for experimental research.
The Thermooxidation and Resistance to Moulds Action of Some Polyethylene Sorts Used at Anticorrosive Insulation of the Underground Pipelines
Authors: Bors Adriana Mariana , Butoi Nicoleta , Caramitu Alina Ruxandra , Marinescu Virgil , Lingvay Iosif
Published: January 2020

Polyethylene (PE) insulations have a wide applicability in the insulation of both underground pipelines and underground power cables. In this context, by coupled techniques of thermal analysis (TG/DTG+DTA) and microbiological determinations, have been studied thermooxidability and resistance to moulds action of some polyethylene sorts. Following the processing of the experimental data obtained by thermal analysis it was found that during the applied heat treatment (100 grd C), in the first approx. 380 h, there is a growth of LDPE (low density polyethylene) polymerization degree by elongation of the aliphatic chains, after which the predominant process consists in the structure crosslinking. For MDPE (mean density polyethylene) samples, during the thermal treatment applied, it was found that the crosslinking degree of polyethylene (PE) increased without significant molecular weight change (with all the related consequences of increasing the weight of the tertiary and quaternary carbon atoms in the molecule). Microbiological determinations have highlighted that the resistance to filamentous fungal action of LPDE is higher than that of the investigated MDPE. It was found that after heat treatment applied (1000 h and 100 oC), both at LDPE and at MDPE, decreases the resistance to moulds action is decreased. It has also been found that moulds action resistance is substantially decreased when inoculated culture media and PE samples are exposed to an alternative electric field of 50 Hz - 6 Vrms/cm.
Methodology of Three-dimensional Printing in Acetabular Fractures
Authors: Malancea Radu Ioan , Gavriliuc Emanuel Robert , Veliceasa Bogdan , Puha Bogdan , Popescu Dragos , Alexa Ovidiu
Published: January 2020

The aim of this paper was to present the method used for creating a 3D model of a fractured hemipelvis and its accuracy in reproducing dimensions and structural relationships between fractured fragments. A PolyLactic acid model of the hemipelvis was generated with the aid of the 3D printer. Using a 3D model of a complex fracture aids the orthopedic surgeon in planning the intervention and choosing the best fixation method. Patients with pelvic fractures are not usually operated immediately, which is why they can benefit from this technology.
Co-expression of p16/ki-67 in Associated with Human Papilloma Virus Type 16
Authors: Balint Oana , Secosan Cristina , Grigoras Dorin , Ilina Razvan , Levai Codrina Mihaela , Sas Ioan
Published: January 2020

The current trend in screening against cervical cancer is to improve the sensitivity of screening method and p16/Ki-67 dual-stained cytology, represents a promising approach. We performed a study to investigate the correlation between the p16/Ki-67 co-expression and HPV type on a group of patients with ASCUS and LSIL on Pap smear. On all patients, dual stain test and HPV genotyping were performed. In the group of patients with positive dual stain p16/ki-67 test, the number of patients with HPV type 16 was significantly higher than the number of patients with any other type of HPV. Also, all patients with CIN3 or above (cervical cancer) were positive for p16/Ki-67. Our study shows the potential use of those two tests to identify patients with high risk for severe dysplasia.
Obtaining and Characterization of the Ti15Mo5W Alloy for Biomedical Applications
Authors: Buzatu Mihai , Ghica Stefan Ioan , Petrescu Mircea Ionut , Geanta Victor , Stefanoiu Radu , Iacob Gheorghe , Butu Mihai , Vasile Eugenia
Published: January 2020

In the paper are presented the experimental researches made in order to obtain a new titanium alloy - Ti15Mo5W used for medical applications with improved mechanical characteristics and modulus of elasticity. In this regard Ti15Mo with addition of W alloy was designed with the intention of obtaining b-Ti phase stability. For this, we studied the influence of: the bond order, energy level of metal d-orbital, ratio of valence electrons/atom and influence of the addition of W. After designing the alloy compositions and setting the parameters, the Ti15Mo5W composition was chosen to run the experiments. The experimental Ti15Mo5W alloy was obtained by vacuum arc remelting technique using Ti, Mo and W high purity metals. The alloy was characterized by SEM, EDS and tested for Vickers hardness and compression. The microstructural characterization of the alloy proved to be homogeneous, and the mechanical characterization highlighted the obtaining of an alloy with a low elasticity modulus of about 30 GPa and an average hardness of 320 HV.
The Use of Polypropylene Mesh in the Reconstruction Techniques of the Thoracic Wall After Resections of the Thoracic Wall
Authors: Suciu Bogdan Andrei , Halmaciu Ioana , Bud Vasile , Copotoiu Constantin , Fodor Decebal , Trambitas Cristian , Godja Dumitru , Vunvulea Vlad , Molnar Calin , Brinzaniuc Klara
Published: January 2020

The thoracic wall resections for tumoral affections are laborious surgical interventions characterized by a high mortality and mobility. In order to create this paper we created a observational retrospective study in which we included 21 patients that have underwent parietal thoracic resections for tumoral affections. In all the patients we practiced the reconstruction of the thoracic wall using polypropylene mesh. The main postoperative complications were: seromas (14.28% of the cases), hematomas (9.52% of the cases), wound infection (4.76% of the cases), pneumonia (23.8% of the cases), respiratory failure (23.8% of the cases), paradoxical movement of the thoracic wall (52.38% of the cases). No deceases were recorded. In conclusion, the use of polypropylene mesh in the reconstructive techniques of the thoracic wall after thoracic wall resection represents a viable method, with good respiratory functional results.
The Effects of Magnetic Nanoparticles Incorporated in Polyelectrolyte Capsules
Authors: Stavarache Carmen , Vinatoru Mircea , Mason Timothy , Paniwnyk Larysa
Published: January 2020

Polyelectrolyte multilayer capsules are synthesized comprising of 12 total layers each containing a single layer of iron oxide nanoparticles in shells 4, 6, 8 or 10. A protein-labelled dye is embedded in the calcium carbonate template core as a model for the encapsulation of a drug. The core is dissolved after 6 layers are formed. Two types of magnetic nanoparticles are incorporated into various capsule shells: ferric oxide (Fe2O3, 50 nm) and iron oxide (Fe3O4, 15 nm), a 1:1 (vol.) mixture of the two types of nanoparticles suspensions is also used. Nanoparticle inclusion reduces the capsule sizes in all cases with the order of effect Fe3O4 [ Fe2O3 [ Fe2O3/Fe3O4 mixture. When Fe3O4 or a Fe2O3/Fe3O4 mixture is incorporated in layer 6 the reduction in size of the final capsules is less than expected. The number of surviving capsules containing nanoparticles are lower than control regardless of which of the nanoparticles is used but here the effect of Fe3O4 or a mixture of the two types of nanoparticles incorporated in layer 6 was slightly out of step. The amount of iron incorporated is almost the same regardless of which shell the nanoparticles were incorporated but the iron content using 50 nm nanoparticles is generally slightly higher than that obtained with 15 nm nanoparticles.