bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of mechanical properties of bio-finished regenerated bamboo fabrics using 23 31 mixed level factorial design
Authors: Naeem Farhana , Asim Fareha , Naqvi Shenela , Tufail Muhammad
Published: December 2023

Pilling resistance of Regenerated Bamboo (100%) and Regenerated Bamboo-Cotton (50:50) blended, woven fabrics was poor (grade 3 to 1.5). There are different techniques available that may help to improve the pilling resistance of fabrics. Bio polishing is one of the effective ways to control the pilling of cellulosic knitted fabric however very few studies have been conducted on woven fabrics. Therefore, this study aims to statistically evaluate the effectiveness of bio polishing agents on the improvement of pilling of regenerated bamboo and bamboo/cotton woven fabrics. Effect of bio-polishing agent (acid cellulase) on Regenerated Bamboo and Regenerated Bamboo-Cotton woven fabrics was investigated using 23 31 mixed-level factorial design. Four factors were studied; Fabric weave, blend ratio, pretreatment and concentration of acid cellulase were selected. Influence of Fabric weave, blend ratio and pretreatment was examined at two levels, whereas concentration of acid cellulose was tested at three levels. The influence of the individual factors and their interactions on pilling resistance, tensile strength, tear strength and Berger whiteness were analyzed using the software Design-Expert 8.13. The outcome of this study showed that bio-polishing improved the pilling resistance of Regenerated Bamboo and Regenerated Bamboo-Cotton blended woven fabrics and did not affect tear and tensile strengths and whiteness of the plain and satin fabrics, significantly.
Applied Improved Canny Edge Detection for Diagnosis Medical Images of Human Brain Tumors
Authors: Taher Sarab M. , Ghanim Mustafa , Der Chen Soong
Published: December 2023

Medical image processing has become one of the crucial elements of the diagnostic process because of the increased usage of medical imaging recently, and clinicians' dependence on such computer-processed medical images in diagnosing patients. As the traditional Canny edge detection algorithm is sensitive to noise, it is easy to lose weak edge information when filtering out the noise, and its fixed parameters show poor adaptability. The suggested algorithm introduced the concept of image block intensity operator to replace image gradient. In addition, the computing speed of the suggested algorithm is relatively fast because it works block by block rather than pixel by pixel. Two adaptive threshold selection methods are presented, one based on the median accumulative histogram of image gradient magnitude and the other on the standard deviation for both types of image pixels (one with less edge information and the other with rich edge information). The proposed algorithm can be dividing into four stages: Input the medical digital image, convert the color medical image to gray-scale, applied improved canny edge detection, then calculate the MSE & PSNR Measures, in addition conduct a visual questionnaire by oncologists to find out which method that made the enhancement of the medical image clearer.
Characterization and Physical Properties of PolyvinylChloride/Silica Nanocomposite Films
Authors: Mohammad Maryam Hussein , Saeed Asrar Abdulmunem
Published: December 2023

Using polyvinyl chloride (PVC) and SiO2 NPs in Tetrahydrofuran (THF). The casting method produced thin films of (PVC) with various amounts of SiO2 nanoparticles (0.001, 0.002, 0.003, 0.004, and 0.005) g. XRD results showed that the PVC films and SiO2 NPs had an amorphous structure. The FESEM of PVC/SiO2 nanocomposite film shows excellent SiO2 dispersion on the PVC film surface. The FTIR spectrum indicated that SiO2 NPs did not influence polymer structure. UV-Vis spectroscopy has been used to study the effects of SiO2 NPs on PVC optical characteristics, including absorption spectrum, transmission spectrum, energy band gap, absorption coefficient, extinction coefficient, refractive index, and real and imaginary dielectric constants. It was found that with increasing SiO2 NPs amount, the optical energy gap of PVC/SiO2 nanocomposite films was reduced from 4.36 to 3.39 eV. The study shows that an increase in SiO2 NPs results in a change in all of these parameters.
Engineering Properties, Processing and Value Addition of Tamarind: A Review
Authors: Bidyalakshmi Thingujam , Sunita Thongam , Kaukab Shaghaf , Ravi Y.
Published: December 2023

Tamarind is widely consumed as fruit and spices in India. Tamarind contains  pulp, seeds, shell and fibres. The pulp, which makes up between 30 and 50% of the mature fruit, is rich in reducing sugars, pectin, protein, fiber, and cellulose substances. Study of various physical engineering properties such as moisture content, fruit size, length, width, thickness, and weight (pulp, seed, shell, etc.) is important for designing the post-harvest machineries of tamarind.  Major unit operations for processing of tamarind includes drying, dehulling, deseeding, pressing and storage. Traditional and mechanical approaches are used for these operations. Mechanical approaches of tamarind processing are carried out by dehuller and deseeder machinery. One of the crucial unit procedures in the processing of tamarind is deseeding which can be done by deseeder, mechanically. Processing of raw tamarind into value-added goods may increase its worth in addition to increase in shelf life. Additionally, it boosts the income of producers and processors. Value added products of tamarind are pulp, tamarind juice concentrate, tamarind pulp powder, tamarind pickle, tamarind jam, tamarind syrup, tamarind candy, tamarind kernel powder, dried fruit block, tamarind chutney and beverages. Tamarind is also rich in major amino acids phytochemicals and hence it carries the properties of antidiabetic, antibacterial, antivenomic, antioxidant. This paper provides an overview of the engineering properties, processing technologies, value added products, technologies and machineries developed/available for tamarind and its health benefits which will further help in machinery, protocol, technology and product design and development.
Navigating health information chaos: Perspectives from Persian-speaking immigrants in Finland
Authors: Arzideh Sara , Ahmadinia Hamed
Published: December 2023

The purpose of this study is to explore health information environment and behaviours of Persian-speaking immigrants in Finland during the COVID-19 pandemic, utilising information chaos framework. Between January to March 2022, semi-structured interviews were conducted with a sample of 18 participants, using an adapted framework of information chaos and previous research as a guide for the interview questions.
The study found that participants relied on interpersonal connections, news outlets, and social media to stay informed on current news and health-related information, with messaging apps being particularly popular due to their convenience and ability to connect with friends and family in their home countries. While most participants were satisfied with the amount of information they received, some encountered inaccurate pandemic information. The study also identified significant obstacles related to information scatter and conflict. Participants employed various methods, including verifying with official sources and interpersonal networks, to assess the reliability of their information. Credible health information led to changes in behaviour and lifestyle.
The study's findings offer practical implications for health authorities and policymakers to address the health information needs of Persian-speaking immigrants during public health crises. The use of an information-chaos framework could be beneficial in identifying challenges related to channelling accurate and reliable health information among minorities through different information sources. Such initiatives can bridge the gap between the health information needs of immigrants and the available health information, ultimately reducing health disparities and improving health outcomes.
This study represents one of the pioneering works exploring the information environment during a pandemic and the strategies adopted by the Persian-speaking minority to address the dissemination of false information during a health crisis. These findings shed light on the complex interplay of individual and health information environments that influence adhering to safety protocols and adopting healthy behaviours in this population.
Current challenges of healthcare co-creation and testbeds
Authors: Lahtiranta Janne , Collanus Eva , Kielo-Viljamaa Emilia , Tuomisto Antti
Published: December 2023

In the recent years, co-creation – especially in the form of testbeds – has been more and more utilized in healthcare sector. As is common in the Northern Europe, most of the testbed services are offered by public sector organizations, such as higher education institutes. These kinds of organizations have core functions, that are often defined in the law, and co-creation in one form or another, may not be included in the functions. It follows from this that the operational maturity may differ significantly from one testbed to another. This paper investigates the current state of the Finnish healthcare testbeds, their “good” and the “bad”. The data used in this review was collected during the development of Health Care Testbed Maturity Assessment instrument (HCTM). During the development, a series of so-called friendly audits were performed on Finnish testbeds, during which the testbed operators’ insider views were collected for later use alongside data used for instrument development. This article will summarize these views, provide a current view to the Finnish healthcare testbeds, and conclude with practical remarks on how to develop the maturity of Finnish healthcare testbeds.
Digitalisaation mahdollisuudet työhyvinvoinnin edistämisessä yliopistosairaalassa: haastattelututkimus johtajille ja ammattilaisille
Authors: Hänninen Heidi , Hammarén Mira , Kanste Outi Ilona
Published: December 2023

Digitalisaatiolla pyritään vastaamaan terveydenhuollon haasteisiin, kuten resurssien riittävyyteen ja kustannusten nousuun. Digitalisaatio edellyttää innovatiivisia ja systemaattisia muutoksia organisaatiossa sekä erityisesti huomion kiinnittämistä työhyvinvoinnin edistämiseen, jotta työn mahdollisesti lisääntyviä kuormitustekijöitä voidaan tunnistaa ja ehkäistä jo muutoksen aikana.
Tutkimuksen tarkoituksena oli kuvata johtajien ja ammattilaisten näkemyksiä digitalisaation mahdollisuuksista työhyvinvoinnin edistämisessä yliopistosairaalassa. Aineisto kerättiin puolistrukturoiduilla fokusryhmä- ja yksilöhaastatteluilla yhden yliopistosairaalan johtajilta (n=20) ja ammattilaisilta (n=22) etäyhteydellä kesäkuun 2021 ja toukokuun 2022 välisenä aikana. Aineisto analysoitiin induktiivisella sisällönanalyysillä.
Tulosten mukaan digitalisaation mahdollisuuksia työhyvinvoinnin edistämisessä yliopistosairaalassa kuvasivat: työnteon mielekkyyden lisääntyminen, työnteon tehokkuuden parantuminen, työhyvinvointia edistävät digitaaliset ratkaisut ja palvelut, osaamisen edistäminen ja mahdollistavan toimintaympäristön luominen. Digitaalisilla ratkaisuilla voidaan edistää työntekoa sujuvammaksi ja mahdollistaa yksilöllisempi työnkuva. Työhyvinvointia voidaan edistää digitaalisilla ratkaisuilla, jotka tukevat ja seuraavat työstä palautumista ja hyvinvointia työssä. Digitalisaation hyödyntäminen työhyvinvoinnin edistämiseksi edellyttää osaamisen varmistamista, digitalisaatiota tukevaa työilmapiiriä ja työympäristöä sekä muutoksen johtamista.
Digitalisaatio tarjoaa mahdollisuuksia työhyvinvoinnin edistämiseen vaikuttamalla työnteon mielekkyyteen ja tehokkuuteen, työhyvinvointia edistäviin digitaalisiin ratkaisuihin ja palveluihin, osaamisen edistämiseen ja mahdollistavan toimintaympäristön luomiseen. Terveyden edistämisen näkökulma on tärkeä huomioida digitaalisten ratkaisujen suunnittelussa ja käyttöönotossa. Keskeistä on osallistava kehittäminen, jossa esihenkilöillä on tärkeä rooli muutoksen mahdollistamisessa. Kiinnittämällä huomiota työhyvinvointiin digitalisoituvassa terveydenhuollossa, voidaan lisätä alan veto- ja pitovoimaa.
Development and pilot testing of a maturity assessment instrument for testbeds in health care
Authors: Collanus Eva , Kielo-Viljamaa Emilia , Lahtiranta Janne , Tuomisto Antti
Published: December 2023

High-quality testbed services play a key role in the development and testing of new innovations for health care. To ensure that the development and testing process is valid and reliable, the testbed itself should fulfil a certain maturity level. The objectives of this study were to develop and pilot a new maturity assessment instrument for health care testbeds and to assess the maturity level of participating testbeds using self-assessment auditing. The data were collected in 2022 from 11 health care testbeds in Finland using the developed Health Care Testbed Maturity Assessment (HCTM) instrument in the form of auditing. The data were analysed using descriptive statistical analysis. According to the study results, the average maturity level of the participating testbeds was 51%. The developed instrument indicated preliminary feasibility for assessing the maturity of health care testbeds. Further development and validation of the instrument are warranted.
Massadata-arkkitehtuuri sosiaali- ja terveydenhuollossa: Tiedonhallinnan yleislainsäädännöstä seuraavat vaatimukset henkilötietojen käsittelylle
Authors: Huovila Mikko
Published: December 2023

Suurten tietomassojen käyttöä kohtaan on merkittäviä odotuksia sosiaali- ja terveydenhuollossa. Tiedon jalostamisen kautta pyritään tuottamaan uudenlaista ymmärrystä palveluiden kehittämiseksi mm. tutkimuksen, innovaatiotoiminnan ja tietojohtamisen keinoin. Käsiteltäessä henkilötietoja on kuitenkin huomioitava rekisteröidyn oikeudet ja henkilötietojen käsittelyä koskevat säädökset. Tämä korostuu erityisesti tilanteissa, joissa käsittelyn kohteena on arkaluontoiset tiedot, kuten sosiaali- ja terveydenhuollossa syntyvät asiakastiedot.
Massadata-arkkitehtuureja suunniteltaessa on huomioitava sosiaali- ja terveydenhuollon tietojen käsittelyä ohjaavan lainsäädännön lisäksi tiedonhallintaa ohjaava yleislainsäädäntö eli EU:n yleinen tietosuoja-asetus, tiedonhallintalaki, julkisuuslaki, arkistolaki ja tietosuojalaki. Aiemmassa tutkimuksessa ei ole käsitelty näiden muodostamaa kokonaisuutta massadatatoteutusten näkökulmasta.
Tässä tutkimuksessa tavoitteena oli tunnistaa tiedonhallinnan yleislainsäädännöstä seuraavat vaatimukset massadata-arkkitehtuureille erityisesti henkilötietojen käsittelyn näkökulmasta. Tutkimuksen tuloksena lainsäädännöstä seuraavat vaatimukset ryhmiteltiin viiteen luokkaan: 1) hallinnolliset vaatimukset, 2) henkilötietojen suojaaminen, 3) tiedonhallinta ja tietoturva, 4) rekisteröidyn oikeudet ja läpinäkyvyys sekä 5) tiedonsiirrot. Lisäksi tunnistettiin lainsäädännön vaatimusten vaikutukset massadata-arkkitehtuurin toimijoihin.
Tyypillisten massadata-arkkitehtuurien ja lainsäädännön yhteensovittaminen ei ole ongelmatonta. Jännitteisyyttä liittyy erityisesti käyttötarkoitussidonnaisuuden huomiointiin, tietojen käsittelyn rajaamisen vain välttämättömään eli miniminointiperiaatteen toteutumiseen, tiedon oikeellisuuden varmistamiseen ja säilytyksen rajoittamiseen sekä tiedonkäsittelyn läpinäkyvyyden toteuttamiseen. Näissä kohdissa lainsäädännön soveltaminen vaatii erityistä huolellisuutta.
Sekä tietosuoja-asetus, että tiedonhallintalaki korostavat organisaatioiden johdon viime kätistä vastuuta rekisteröityjen oikeuksien suojaamisessa sekä hyvän hallinnon vaatimusten toteutumisessa viranomaisen tiedonhallinnassa. Riskien hallitsemiseksi, sisäänrakennetun ja oletusarvoisen tietosuojan sekä hyvän tiedonhallintatavan toteutumiseksi olennaisia välineitä ovat lakisääteiset tietosuojavaikutusten arvioinnit sekä tiedonhallinnan muutosvaikutusten arvioinnit sekä tiedonhallintayksikön antamat ohjeet, koulutus sekä sisäinen valvonta. Sovellettavan lainsäädännön kokonaisuuden monimutkaisuuden vuoksi aihetta käsittelevä viranomaisohjeistus tai viranomaisille suunnattu kansallinen massadataviitearkkitehtuuri olisi hyödyllinen. Aihepiriä koskevalle empiiriselle ja lainopilliselle lisätutkimukselle olisi tarvetta.
Feasibility and optimization of a bush-cut aluminium bronze big end bearing: a simulation-based study
Authors: Kreivi Sami , Kuivaniemi Teemu , Mäntylä Antti , Vaara Joona , Istolahti Jaakko , Halla-aho Pasi , Vuotikka Antti-Jussi , Frondelius Tero
Published: December 2023

The big end bearing of a connecting rod is one of the most highly loaded bearings in marine engines. This paper presents a feasibility study and optimization of the geometrical parameters of a bush-cut bronze bearing for connecting rods in large-bore marine engines. An accurate simulation workflow was developed and carried out in Abaqus to analyze whether a new simple and cost-saving alternative for manufacturing big end bearings would be possible. The simulations showed that aluminium bronze is feasible regarding stress and yielding. However, improvements were needed to increase the radial contact pressure and decrease the compressive tangential stress peaks on the ends of the split bearing. The optimized design parameters included the outer diameter and thickness of the bearing, the thickness of the cutting blade, and the cut angle. Especially the combination of optimized blade thickness and cut angle generated promising results. The findings of this study provide valuable insights and design principles for bearing design processes.
A damage-plasticity model for brittle materials based on an approximation of Rankine type of failure criterion
Authors: Saksala Timo , Kouhia Reijo
Published: December 2023

A damage-plasticity model for tensile failure analyses of brittle materials is developed. The stress states leading to a failure (inelastic strains and damage) are indicated by a rounded approximation of the Rankine criterion. This approximation is expressed in terms of the stress invariants avoiding thus the need of coordinate transformations and eigenvalue solutions required by the classical Rankine criterion. The model is formulated with the effective stress space approach, i.e. the return mapping is first performed in the global effective stress space       and then the damage update is performed independently of the plasticity part. The model is consistently linearized, and, finally, some demonstrative simulations of a tensile test on a rock-like material are carried out.
Analisis kenyamanan produk dudukan laptop berbasis ergonomi
Authors: Gozali Tamara , Siswantoro A. Teguh , Anggoro P. Wisnu
Published: December 2023

Aktivitas penggunaan laptop secara berlebihan dapat memengaruhi postur tubuh pengguna sehingga berimbas pada ketidaknyamanan saat beraktivitas. Masalah ini dapat dibantu dengan alat bantu seperti dudukan laptop. Studi ini bertujuan untuk menganalisis kenyamanan produk dudukan laptop berbasis ergonomi. Analisis RULA digunakan untuk menganalisis postur tubuh dan antropometri untuk menganalisis dimensi produk. Survei awal dilakukan melalui penyebaran kuesioner online kepada mahasiswa sebagai pengguna laptop. Survei berisikan aspek yang diinginkan ketika menggunakan dudukan laptop. Hasil analisis menunjukkan bahwa dari 38 responden, terdapat 32 responden (84%) yang memikirkan desain yang menarik, 31 responden (82%) yang memikirkan produk dapat dibawa ke mana-mana, 16 responden (42%) memikirkan harga produk, dan 14 responden (37%) memikirkan kualitas material. Berdasarkan analisis antropometri, dimensi lebar dudukan laptop harus kurang dari 11,64 cm agar dapat dibawa ke mana-mana. Postur tubuh yang dihasilkan dari analisis RULA pada software CATIA menunjukkan bahwa dudukan laptop dapat membantu menyejajarkan layar laptop dengan pandangan mata sehingga postur tubuh menjadi lebih baik. Oleh karena itu, metode RULA dan antropometri dapat membantu postur tubuh pengguna agar ergonomis sehingga pengguna dapat lebih nyaman ketika menggunakan laptop dengan dudukan laptop.
Strategi promosi di UMKM Stronger Manufacture
Authors: Hadisantono  , Fabiansyah Tessar
Published: December 2023

UMKM Stronger Manufacture merupakan usaha yang memproduksi kaos, jaket, korsa, sweater, jersey, dan lain-lain. Permasalahan utama yang terjadi adalah penurunan penjualan selama dua belas bulan terakhir sebesar 18%. Untuk menghadapi masalah tersebut, tujuan penelitian ini adalah meningkatkan potensi pembelian melalui respon konsumen di media sosial. Dari hasil penjualan dilakukan perhitungan menggunakan analisis matriks BCG (Boston Consulting Group) yang menghasilkan perusahaan berada di kuadran question mark dengan akar masalahnya yaitu informasi yang tidak cukup kepada konsumen. Selanjutnya dengan menggunakan analisis PLC (product life cycle) didapatkan siklus hidup produk pada tahap pengenalan dengan masalah yang diutamakan untuk diselesaikan adalah promosi. Selain itu, berdasarkan penggalian masalah dan diskusi dengan stakeholder, diperoleh alternatif solusi yaitu memperbaiki faktor bauran pemasaran (produk, promosi, harga, tempat). Dari berbagai analisis dan diskusi dengan stakeholder, solusi yang terpilih adalah memperbaiki promosi. Solusi promosi dilakukan dengan merancang strategi promosi menggunakan media sosial dan kalender konten. Implementasi dilakukan selama satu minggu pada instagram UMKM Stronger Manufacture. Hasil implementasi menunjukkan kenaikan engagement instagram sebesar 2,34% untuk post dan 2.300% untuk reels..
Açısal Dönme Tabanlı Aktif ve Pasif Toprak İtkisi
Authors: HAMDERİ Murat
Published: December 2023

Konsol istinat duvarlarında oluşan aktif ve pasif itki duvarın dönme ve yer değiştirmesi ile yakından ilgilidir. Klasik zemin mekaniği çerçevesinde yapılan hesaplarda duvarın yeteri kadar döndüğü ve yer değiştirdiği kabul edilerek aktif ve pasif itkilerin kararlı durumdaki değerleri kullanılır. Özellikle pasif itki için kararlı durumdaki değerleri kullanmak hesabın doğruluğunu olumsuz etkilemektedir. Bu çalışma kapsamında aktif ve pasif itkiler için elde edilmiş açısal dönme tabanlı aktif ve pasif itki formülleri tanıtılacaktır. Literatürdeki diğer bazı formüller ve sonlu elemanlar modelinden elde edilen sonuçlar da kullanılarak bir konsol duvar örneği çözülecek, genel bir karşılaştırma yapılacaktır.
Eruh Su Dağıtım Şebekesinin Metasezgisel Yöntemlerle Optimizasyonu
Authors: DEMİR Recep , ÖNEN Fevzi
Published: December 2023

Ülkemizde artan nüfusa bağlı olarak su kaynaklarının doğru kullanımı ve suyun tüketicilere ulaştırılması konuları gittikçe önemini arttırmaktadır. Suyun tüketicilere ulaştırılması maliyet gerektiren birçok işlemden oluşmaktadır. Bu maliyetin büyük bir kısmını su dağıtım şebekeleri oluşturmaktadır. Bu doğrultuda suyun tüketicilere ulaştırılması için kullandığımız şebeke borularının tasarımı da önem kazanmaktadır. Şebeke borularının maliyetlerini azaltmak için şebekenin tasarımı ve optimize edilmesi amacıyla kullanılan birçok yöntem bulunmakta olup, metasezgisel yöntemler kullanılarak boru çaplarının optimize edilmesi de bu yöntemlerden bir tanesidir.
Karbon nanotüp içeren kompozit kardan milinin burulma burkulmasına ilişkin sayısal ve teorik bir araştırma
Authors: TAŞ Hamza
Published: December 2023

Kompozit kardan milleri, üstün mukavemet-ağırlık ve sertlik-ağırlık oranları nedeniyle geleneksel kardan millerinin güçlü bir ikamesi olarak ortaya çıkmışlardır. Aynı zamanda, çok duvarlı karbon nanotüplerin (ÇDKNT) üstün mekanik, elektriksel ve termal özelliklerinden dolayı takviye elemanı olarak kullanımı büyük bir ivme kazanmıştır. Bu çalışmada, karışım kuralı (rule of mixture) ile Halpin-Tsai (H-T) modelini birleştiren bir mikromekanik model, ÇDKNT katkılı karbon fiber takviyeli epoksi reçinenin elastik sabitlerini hesaplamak için kullanılmıştır. Bu mikromekanik model, MWCNT'lerin topaklanma, en boy oranı, dalgalanma ve rastgele yöneliminin etkisini dikkate almaktadır. ÇDKNT/epoksi reçinenin mikromekanik model kullanılarak hesaplanan elastik sabitleri literatürde bulunan deneysel sonuçlarla karşılaştırılmıştır. Ayrıca, çeşitli ÇDKNT konsantrasyonları ve fiber oryantasyon açıları için kompozit kardan millerinin kritik burulma burkulma yükünü tahmin etmek için sonlu elemanlar analizi (SEA) yapılmıştır. SEA sonuçları teorik olarak elde edilen sonuçlarla karşılaştırılmıştır. Sonuçlar, mikromekanik model kullanılarak hesaplanan ÇDKNT/epoksi reçine nanokompozitinin Young modülünün deneysel bulgularla uyumlu olduğunu göstermiştir. ÇDKNT katkısız karbon elyaf takviyeli epoksi reçine ile karşılaştırıldığında, hacimce %10 MWCNT'lerin eklenmesi durumunda E1, E2, G12 ve G23 (kompozit laminanın elastik sabitleri) sırasıyla %0,66, %27,80, %49,02 ve %37,50'lik iyileştirmeler gösterdi. Fiber oryantasyon açısı, Tcr üzerinde ÇDKNT konsantrasyonundan daha baskın bir etkiye sahiptir.
Güneyköy (Eşme, Uşak)’de Yeralan Altınlı Kuvars Damarlarındaki Arsenopiritlerin Skoroditleşmesi ve Mineralojik özellikleri
Authors: KAHYA Asuman , KANAAT Öznür
Published: December 2023

Bu çalışmada, Eşme İlçesinde (Uşak) yeralan Güneyköy’de Paleozoik yaşlı granitik gnayslarda bulunan Au-içeren arsenopiritli kuvars damarlarında gelişen skoroditleşmenin mineralojik-petrografik özellikleri ile Au-skoroditleşme ilişkisi incelenmiştir. Çalışma alanında başlıca en yaygın olan cevher minerali arsenopirittir. Arsenopiritler kenar ve dilinimleri boyunca skorodite dönüşmüştür. Yaptırılan jeokimyasal analizlere göre arsenopiritlerin Au içeriği 0,5 ppm ile 10 ppm aralığında değiştiği belirlenmiştir. Arsenopiritlerde mikroskobik olarak görülebilir Au olmamasına rağmen arsenopiritin alterasyon ürünü olan skoroditte ise mikroskobik olarak 30-100 mµ boytunda Au taneleri olduğu belirlenmiştir. Arsenopirit ve arsenopiritte yeralan Au hipojen olarak oluşurken, arsenopiritin alterasyonu sürecinde, oluşan skorodit ile skoroditteki Au birikmesi ise süperjen oluşum olarak tanımlanmıştır.
Uçuş kontrol kulelerinin deprem performansı ve deprem yalıtım etkisi
Authors: AKTAŞ Gültekin , BOZTEPE Alper
Published: December 2023

Ülkemiz deprem felaketleri sebebiyle ciddi boyutlarda can ve mal kayıplarına maruz kalmıştır. Deprem sonrası hemen kullanılacak olan binalardan olan uçuş kontrol kulelerinin deprem esnasında hasar görmesi halinde bazı aksaklıklar meydana gelmesi muhtemeldir. Deprem sonrasında havalimanlarındaki uçuş kontrol kulelerinde hasar oluşması durumunda; piste yardım malzemesi veya insanların intikallerinin sağlanması amacıyla uçak, helikopter gibi hava araçlarının iniş ve kalkışının sağlanamayacağı, bölgeye ulaşımın en kısa süre içerisinde gerçekleştirilemeyeceği bilinmektedir. Bu çalışmada, havaalanlarındaki uçuş kontrol kulelerinin deprem performansı ile deprem yalıtım etkisine ait literatür incelemesi amaçlanmıştır. Ülkemizde uçuş kontrol kulelerinin deprem performansının incelenmesine yönelik çalışmanın olmadığı, uluslararası yayınlarda ise son yıllarda bu konunun ele alındığı dikkat çekmektedir. Literatür incelemesinde; uçuş kontrol kulelerinin deprem performansına yönelik ülkemizde sadece 2021 yılında yürürlüğe giren Türkiye Hava Meydanı Yapıları Deprem Yönetmeliğinde mevcut ve yeni yapılar için kriterler belirlenmiştir. Uluslararası yayınlarda ise uçuş kontrol kulesi için özel sismik tasarım kılavuzunun oluşturulmasının gerektiği dikkat çekmektedir. Deprem yalıtım etkisinde ise yapılarda deprem performansı açısından olumlu sonuçlar alınmasına rağmen, havalimanlarında öneme sahip uçuş kontrol kulesine yönelik çalışmanın bulunmadığı görülmektedir. Bu nedenle, ülkemizde kritik öneme sahip mevcut veya yeni yapılacak uçuş kontrol kulelerinin deprem performansı ve yalıtım etkisinin ayrıntılı olarak incelenmesine yönelik yeni araştırılmalara ihtiyaç bulunduğu öngörülmektedir.
COVID-19 Aşıları için Duygu Analizi
Authors: ULUTAŞ KARAKOL Deniztan , CÖMERT Çetin
Published: December 2023

Zamanın ve teknolojinin gereksinimleri ile “Web” anlamsal ve akıllı teknolojilerle dönüşüme uğramış ve kullanıcıların aktif olarak içerik yaratabildiği, herhangi bir konuda görüşlerini ifade edebildiği çok yönlü sanal interaktif bir platform haline gelmiştir. Bu platformlardan biri olan sosyal medya sayesinde bilgi ve fikirlerin yayılması kolaylaşmıştır. Günümüzde sosyal medya platformlarında üretilen veriler metin madenciliği yöntemleri sayesinde basit, hızlı ve etkili bir şekilde analiz edilebilmektedir. Analiz sonuçları satış tahminleri, pazarlama, çevre, sağlık, toplumun duygu ve düşüncelerini saptama gibi birçok alanda kullanılmaktadır. Bu noktadan hareketle, bu çalışmada COVID-19 global hastalığı için geliştirilen Sinovac ve Biontech aşıları için Twitter kullanıcılarının paylaştıkları tweet’ler üzerine zamansal duygu analizi yapılmış ve sonuçlar karşılaştırılmıştır. Böylece aşıların insanlar üzerindeki olumlu ya da olumsuz etkileri ortaya çıkarılmıştır. Sonuçta aşı olan ya da olmayan insanların aşılara karşı duyguları ölçülmüş, aşıların olumlu ya da olumsuz etkilerinin değerlendirilmesi amaçlanmıştır. Analiz sonuçlarına göre, insanların çoğunlukla aşılardan memnun olduğu görülmektedir. Ancak nüfusun bir kısmının endişe ve korku duyması, aşıların insanlar üzerindeki etkisinin olumsuz taraflarını da yansıtmaktadır. Bu çalışma farklı aşı veya medikal tedavi türleri için de uyarlanıp insanlar için yol gösterici olabilir.
The Experience of the “Muravyov System” in the Domestic Politics of Russia at the End of the 19th – Beginning of the 20th Centuries
Authors: Gayda Fyodor
Published: December 2023

The article examines the issue of the “Muravyov system” (the political course of the Governor- General of the North-Western region M.N. Muravyov-Vilensky, 1863–1865) and its infl uence on the internal policy of the Russian Empire in the end of the 19th – beginning of the 20th centuries. The author comes to the conclusion that the basic principles of Muravyov-Vilensky were later implemented at the all-Russian level. It was planned to combine anti-crisis repressive (administrative and police) measures with certain reforms. The reforms were intended to gain public support for government policy as only on that condition they could have the desired long-term effect. The policy of Muravyov-Vilensky was supported by the progressive bureaucracy, that developed the course of the Great Reforms of Emperor Alexander II, – N.A. Milyutin, Minister of Internal Affairs M.T. Loris-Melikov (1880–1881) and Prime Minister P.A. Stolypin (1906–1911). All of them also combined in their policy certain measures of revolutionary forces suppression with reform projects.
Unknown Notes of the Grodno Governor M.N. Muravyov
Authors: Kiselev Alexander
Published: December 2023

The author introduces into scientifi c circulation two previously unpublished notes by the Grodno governor M.N. Muravyov. Those notes show M.N. Muravyov as an active representative of the highest imperial bureaucracy, who seeks to signifi cantly improve governance in the province after the Polish uprising of 1830–1831.
North-Western Provinces Russifi cation under the Rule of Count M.N. Muravyov-Vilensky
Authors: Bliznekov Vladimir
Published: December 2023

In the article the author examines the reformist activities of M.N. Muravyov-Vilensky as the Vilna Governor-General of the Russian Empire to introduce russifi cation in the territory of the former Grand Duchy of Lithuania after the suppression of the anti-Russian January uprising of 1863. The author comes to the conclusion that Muravyov’s reforms were of great importance for the restoration of Russian national, religious and cultural identity in this territory.
Sivas/Zara Habeş Bölgesi Alevi Köylerinde İcra Edilen Cenaze Hizmeti
Authors: Keleş Bülent
Published: December 2023

Ölümün evrensel bir olay olması ve herkesin bir gün öleceğini bilmesinden kaynaklı sebeplerle, tarih boyunca ölüm ve ölümle ilgili ritüeller insanlar arasında öncelik kazanan meselelerden biri olmuştur. Hatırlama, hatırlanma ve ölümden sonraki yaşama bağlı olarak, tabi olunan inancın sınırları içerisinde, ölünün geride kalan yakınlarının da katkısıyla birtakım dini ve/veya diğer ritüeller gerçekleştirilmektedir. Bu ritüeller gerçekleştirilirken, geleneksel ve dini kuralların sürdürülmesine azami gayret gösterilmektedir. Ölenin toplumsal statüsü, vasiyeti, cenaze hizmetini gerçekleştiren kişi vb. etkenler ölüm sonrası ritüellerde küçük değişikliklere yol açmakla birlikte, ritüelin ana gövdesi sabit tutulmaktadır. Aleviler, içinde bulundukları zor koşulların etkisiyle ve karşılaşılması muhtemel olumsuzlukları en aza indirmek gayretiyle, çoğunlukla dini görünürlüklerini gizlemek zorunda kalmışlardır. Hal böyle olunca ibadetlere katılımı yalnızca Alevileri kapsayacak şekilde daraltmışlar ve yabancıların cem vb. erkânlarda bulunmasına sınırlama getirmişlerdir. Ancak toplumun genelini ilgilendiren ve Sünni katılımcıların da hazır bulunduğu bazı dini ritüeller umuma açık gerçekleşmiştir. Aleviliği görünür kılan bu az sayıdaki dini geleneklerin başında ise “Cenaze Hizmeti” gelmektedir. Cenaze hizmeti umuma açık olmasına rağmen toplumunun birçok kesiminde Alevilikteki cenaze ritüeline yönelik birtakım bilgi eksiklikleri bulunmaktadır. Bu bilgi eksikliğinin bir sonucu olarak, makalemize konu olarak seçtiğimiz bölgede yaşamını sürdüren Sünni vatandaşlarımızın: “Alevilerle Sünniler arasında aslında bir fark yokmuş.” şeklinde dile dökülen ve şaşkınlık barındıran ifadeleriyle karşılaşılmaktadır.Makalemiz, Sivas ili Zara ilçesinde Habeş (Şerefiye) olarak bilinen bölgedeki Alevi köylerinde uygulanan Cenaze hizmetleriyle sınırlandırılmıştır. Bu kapsamda Habeş bölgesiyle ilgili genel bilgiler verildikten sonra Alevi köylerinde uygulanan cenaze hizmetleri, Aleviler arasında “Hoca” olarak bilinen isimler ve Alevi görüşmecilerimizin katkısıyla derlenerek oluşturulmuştur. Alevi kaynak eserlerinin yanı sıra bizden önce ortaya konulan çalışmalardan da yararlanılarak bir sonuca varılmıştır. Sosyal bilimlerin Nitel araştırma yöntemini uyguladığımız çalışmamızda, desen olarak fenomenolojik yaklaşım tercih edilmiştir. Ayrıca katılımcı gözlem ve görüşme yöntemi kullanılarak görüştüğümüz isimlerin deneyimlerinden de istifade edilmiştir.
Alevilikte Bir Sürek: Adıyaman Aleviliğinde Sofiler ve Müzik
Authors: Özdemir Erhan
Published: December 2023

Bu çalışmada, Türkiye’nin Adıyaman ilinde Sofilik adı altında karşımıza çıkan Alevi inanç yapılanmasının ritüel ve müzik ilişkisi üzerinden kolektif kültür yapısı analiz edilecektir. Alevi-Kürt kimliğine sahip olan bu topluluk, kendine özgü kültürel, inançsal ve müzikal yapısıyla, Türkiye’de yaşayan diğer Alevi gruplardan farklılık göstermektedir. Aleviler içerisinde inançsal ve inanç dışı ritüeller konusunda tamamen homojenlikten bahsetmek pek de mümkün değildir. Bunun sebepleri içerisinde etnisite, dil, ocak ve coğrafya faktörleri gibi etkenler sayılabilir. Aleviliğin en önemli kültürel unsurlarından olan müzik ve semah/dem, sofiler arasında kendine özgü bir yapı sergilemektedir. Alevi inancının içerisindeki Sofiler gibi bu kendine özgü yapı, kolektif ve kültürel bellek taşıyıcılığıyla geleneğin sürekliliğini sağlamaktadır. Adıyaman bölgesindeki sofîlik geleneği üzerine herhangi bir yazılı kaynak bulunmamaktadır. Bu sebeple yapmış olduğumuz çalışma, tespit ettiğimiz grupla ilgili bilimsel kaynak eksikliği ve kapalı cemiyet olarak inanç yapılarını sürdürmeleri sebebiyle içerisinde zorluğu barındırmış olmasının yanı sıra bu alanda bir ilk olma özelliğine sahiptir. Çalışma coğrafi olarak Adıyaman ve İstanbul illeri ile sınırlandırılmıştır. Saha araştırması sırasında yapılan yüz yüze görüşmeler ile elde edilen veriler, çalışmanın ilgili yerlerinde değerlendirilmeye tabi tutulmaktadır. Makale içerisinde saha araştırmaları sonucunda elde edilen tarihsel ve inançsal anlatılar ile möhbet/muhabbet adını verdikleri ritüelde yer alan müzik ve semah/dem hakkında tespitlerin analizi ve değerlendirmesi yer almaktadır. Bununla birlikte sofilik geleneğine bağlı olup muhabbetlerde yer alan kişilerin anlattığı evrenin yaratılışı, kadının inanç içerisindeki yeri, Hz. Ali’nin kutsiyeti, Hz. Hüseyin’in kerbelâ vakası ve inanç hiyerarşisindeki konumu, on iki hizmete bakış açıları ve ziyaret kültleri saha araştırmalarında elde edilen veriler doğrultusunda aktarılmaya çalışılmıştır. Sofilik geleneğinde önemli bir yeri olan müzik ise teknik boyutundan ziyâde sosyal ve bağlamsal boyutuyla ele alınarak sunulmuştur.
Analisis Pemarkah Lokatif ‘Di’ dalam Bahasa Indonesia dan ‘Fii’, ‘Bi’ dan ‘‘Alaa’ dalam Bahasa Arab
Authors: Muhamad Sahrul , Kiswanto Dudi , Rahmanita Fatia , Wargadinata Wildana
Published: December 2023

Dalam proses pembelajaran bahasa asing terdapat perbedaan baik dari segi makna yang dapat mengakibatkan kesalahan dalam berbahasa. Untuk mengetahui hal tersebut maka diperlukan analisis kontrastif yang bertujuan mengidentifikasi segi-segi perbedaan atau ketidaksamaan yang kontras (mencolok) antara dua bahasa atau lebih yang diperbandingkan. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan dan persamaan pemarkah lokatif dalam bahasa Indonesia dan bahasa Arab. Penelitian ini menggunakan analisis kontrastif sebagai upaya untuk mendeskripsikan persamaan dan perbedaan pemarkah lokatif di antara kedua bahasa tersebut. Diperoleh kesimpulan bahwa kata ‘fii’, ‘bi’ dan ‘‘alaa’ memiliki fungsi yang sama sebagai pemarkah lokatif, tetapi tiap-tiap kata tersebut memiliki penggunaan yang berbeda pada kalimat. Pemarkah lokatif ‘di’ digunakan untuk menyatakan tempat, sedangkan pemarkah lokatif ‘bi’ untuk menyatakan tempat yang bersanding dengan suatu aktivitas dan ‘’alaa’ untuk menyatakan tempat yang lebih spesifik yaitu menempel pada permukaan. Analisis kontrastif pemarkah lokatif dapat dijadikan solusi alternatif bagi pengajar untuk membantu siswa mengatasi kesulitan yang dihadapi dalam mempelajari bahasa Arab sebagai bahasa kedua.
Exploring Students' Motivation in Online English Learning during the COVID-19 Pandemic: A Case Study of Eighth-Grade Students at MTsN 2 Palu
Authors: Widya Hastuti Sri Reski , Nurdin Nurdin , Afifah Afifah
Published: December 2023

Education has become a new challenge in Indonesia during the covid-19 pandemic because of many changes that occurred in the education system, either in the learning methods or the learning strategies which finally affects the learning motivation of the students. This research aims to explain in detail how the objective conditions of motivation experienced by the students in online learning English and what factors affect the students’ learning motivation in online learning English during the covid-19 pandemic. The research question of this research was, “How is the eighth grade students’ motivation in learning English at MTsN 2 Palu during the covid-19 pandemic?” This research was conducted with a qualitative descriptive approach. The participants involved in this research were 1 teacher and 82 students in MTsN 2 Palu. Data collection techniques used by the researcher were interview and documentation techniques. The validity of the data was done by the triangulation method. The analysis technique applied refers to Miles and Huberman's interactive data inductive model, which includes data reduction, data presentation, and drawing conclusions or verification. The results of this research shows that some students were adequately motivated and some students had low motivation during the online learning. This can be seen directly from the results of this research through interviews and documentation to respondents. Moreover, the factors that influence the students’ learning motivation during the pandemic are students’ learning enthusiasm, family economic problems, and the lack of connection with the students’ parents.
Improving the technology of marined semi-finished poultry meat
Authors: I Danylevych , V Pasichnyi , Ye Shubina , А Marynin
Published: December 2023

Danylevych I., Pasichnyi V., Shubina Ye., Marynin А.
A Thematic Analysis On Articles Published In The Field Of Educational Administration After 2000s.
Authors: Cozoğlu Tuğba , Aslanargun Engin
Published: December 2023

The purpose of this study is to identify emerging trends and tendencies of educational administration in Turkey and abroad after the 2000s. It is aimed to analyze the articles published in the journals of educational administration from a thematic perspective and to draw comparative results. With the thematic analysis of the articles published in selected journals which are considered important in the field of education administration, it is aimed to reach general assessments of the situation by uncovering the trends in Turkey and the world and examining the similarities and differences in these trends. Leadership as an emerging theme was the most frequently studied category, school improvement, school psychology, administrative structure, and processes followed this. While the themes such as racism, equality, women managers, and gender differences were among the most examined themes in the foreign articles, the situation was the opposite in local articles. In local articles, resolving organizational conflicts and ensuring unity of organization, the members of the organization being attached to the organization, maintaining the order of school and classroom, and ensuring student discipline were underlined. Articles published in the local journal are much more about other educational issues than administration and leadership.
Effect of Luffa Sponge Fibre Mats Embedded in the Plaster Matrix
Authors: Kharrati Khaled , Salhi Madiha , Hidouri Abdelmoumen , Abdeljabar Ridha
Published: December 2023

The present experimental research work aims to elaborate a new composite material (CM) composed of plasters reinforced with mats of long unidirectional luffa sponge fibres, treated chemically by 1% NaOH solution during 90 min at a temperature of 50°C, in orderto improve its thermomechanical and physical properties. The influence of fibre mat and fibre napping numbers of luffa sponge on density, porosity, flexural strength, thermal conductivity, thermal diffusivity, thermal effusivity and specific heat capacity properties was investigatedto lower building energy consumption. As far as our case is concerned, we processed a composite using single, double and triple-layer luffa sponge fibre mats. In our study, we are basically confined our experiments to three-layer mats. The experimental results revealed that the networking structure of fibres increases the flexural strength and decreases the thermal conductivity for a two-layer fibre wire mesh imbedded in the plaster matrix as compared with the neat plaster. However, there is a decrease in strength for a triple-layer composite, which referred to poor wetting of the fiber with the matrix material.
Energy Conversion in Systems-Contained Laser-Irradiated Metallic Nanoparticles – Comparison of Results from Analytical Solutions and Numerical Methods
Authors: Radomski Piotr , Ziółkowski Paweł , Mikielewicz Dariusz
Published: December 2023

This work introduces the theoretical method of metallic nanoparticles’ (NPs’) heat and mass transfer where the particles are coated on a surface (base), together with considering the case wherein nanoparticles move freely in a pipe. In order to simulate the heat transfer, energy and radiative transfer equations are adjusted to the considered issue. NPs’ properties are determined following the nanofluidic theories, whereas absorption and scattering coefficients are described using either Mie-Lorenz theory or Rayleigh-Drude approximation. Thermal boundary conditions are implemented based on the microscale heat transfer and Smoluchowski theory. Results are compared with the classical Fourier transport differential solutions that have been adjusted to laser irradiation.
Avoidence Strategies for Fractional Order Systems with Caputo Derivative
Authors: Pawłuszewicz Ewa
Published: December 2023

A control strategy is derived for fractional-order dynamic systems with Caputo derivative to guarantee collision-free trajectories for two agents. To guarantee that one agent keeps the state of the system out of a given set regardless of the other agent’s actions a Lyapunov-based approach is adopted. As a special case showing that the given approach to choosing proposed strategy is constructive for a fractional-order system with the Caputo derivative, a linear system as an example is discussed. Obtained results extend to the fractional order case the avoidance problem Leitman’s and Skowronski’s approach.
Numerical Analysis of the Boiling Heat Transfer Coefficient in the Flow in Mini-Channels
Authors: Maciejewska Beata , Hożejowska Sylwia , Grabowski Mirosław , Poniewski Mieczysław E.
Published: December 2023

This paper deals with boiling heat transfer in the flow of water through an asymmetrically heated horizontal rectangular mini-channel. The mini-channel was made by gluing three transparent glass plates and a copper block. Through the glass window, the variable along the length of the mini-channel two-phase flow structures were recorded to determine local values of the void fraction. Four resistance heaters were attached to the copper block, powered by direct current, generating the heat initiating the flow boiling inside the channel. During the experiment, the following were measured: water volumetric flow rate, inlet pressure with pressure drop, inlet and outlet water temperature, copper block temperatures at three points inside its body, voltage and current supplied to the heaters. Stationary and laminar fluid flow with low Reynolds numbers were assumed in the mathematical model of heat transfer in selected elements of the measuring module. The temperature distributions in the copper block and flowing water were described by the appropriate energy equations: the Laplace equation for the copper block and the Fourier–Kirchhoff equation with parabolic fluid velocity for the flowing water. These equations were supplemented with a set of boundary conditions based on measurement data; moreover, data from experimental studies were the basis for numerical calculations and their verification. Two-dimensional temperature distributions of the copper block and water were calculated with the Trefftz method (TM). The main objective of this study was to determine the heat transfer coefficient on the contact surface of the copper block and water, which was calculated from the Robin boundary condition. The results of the calculations were compared with the results of numerical simulations performed using the Simcenter STAR-CCM+ software, obtaining consistent values. Computational fluid dynamics (CFD) simulations were verified based on experimental data including void fraction and temperature measurements of the copper block and flowing water.
A New Approach to Designing Control of Dissolved Oxygen and Aeration System in Sequencing Batch Reactor by Applied Backstepping Control Algorithm
Authors: Kolankowski Michał , Banach Michał , Piotrowski Robert , Ujazdowski Tomasz
Published: December 2023

The wastewater treatment plant (WWTP) is a complex system due to its non-linearity, time-variance and multiple time scales in its dynamics among others. The most important control parameter in a WWTP is the dissolved oxygen (DO) concentration. The tracking problem of the DO concentration is one of the most fundamental issues in biological wastewater treatment. Proper control of DO concentration is necessary to achieve adequate biological conditions for microorganisms in the WWTP. Aeration is an important process to achieve those conditions, but it is expensive. It was performed using an aeration system, which includes blowers, pipelines and diffusers. This paper presents a new approach to designing a non-linear control system for controlling DO concentration using an adaptive backstepping algorithm. A model of biological processes and aeration system were applied in designing the control system. Simulation tests of the control system were performed and very good results on control were obtained. The proposed solution has proved to be effective and computationally efficient.