bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of New GMAW Welding Methods Used in Prefabrication of P92 (X10CrWMoVNb9-2) Pipe Butt Welds
Authors: Urzynicok Michael , Kwieciński Krzysztof , Słania Jacek , Mariani Paola , Szubryt Marian 
Published: March 2024

Abstract
Welding of collector pipes, flat heads, dished ends and connector pipes performed with high temperature and creep-resistant steels most often has been performed using GTAW process combined with MMA processes. Progress in GMAW process and availability of high quality filler materials (solid wires) enables welding of the above connections also using this method. In order to prove its efficiency, this article presents the results of related tests. The range of tests was similar to that applied during the qualification of welding procedure. The investigation also involved microscopic and fractographic examinations and creep tests. The results reveal that welding with GMAW is by no means inferior to a currently applied SMAW method yet the time of the process is shorter by 50%. The article presents the world’s first known positive results in welding of P92 grade steel using GMAW welding method.
An Extended Small Punch Test Method for Providing Measured Displacements Across a Test Specimen
Authors: Crocker L.E. , Fry A.T. , Banks J. 
Published: March 2024

Abstract
A prototype small punch test rig has been developed to extend the range of data output. Through the introduction of a probe, vertical displacements can be measured across a region of the specimen underside. This information provides much greater understanding of the specimen deformation. Having displacement data at a series of measurement points also facilitates the calculation of strains across the sample. The probe can also be used during a test to provide time dependent data from small punch creep tests. The measured displacement data have been used in conjunction with FE analysis to determine a set of calibration curves for inferring strain at any given vertical displacement. Some creep strain data are also presented.
The Cross-Weld Performance of 9%Cr Creep-Resistant Steels, and the Influence of Welding Parameters
Authors: Rothwell John , Mayr Peter 
Published: March 2024

Abstract
9-12%Cr martensitic-ferritic steels continue to be developed for target temperatures of 650°C. This paper reviews the performance of two experimental European steels against the performance of the better known grade 92 alloy. It comments on the problem of type IV cracking and the effect of welding variables on cross-weld creep performance. Preliminary results from an on-going creep test programme are presented in context, and the findings compared with published data.
Evaluation of Long Term Creep Strength of 9Cr Heat Resistant Ferritic Steel Containing Boron with the Aid of System Free Energy Concept
Authors: Shioda Yoshiki , Fujii Shohei , Murata Yoshinori , Hasegawa Yasushi 
Published: March 2024

Abstract
Prediction of long-term creep strength is an important issue for industrial plants operated at elevated temperatures, although the creep strength of high Cr ferritic steels depends on their microstructural evolution during creep. The state of microstructure in metallic materials can be expressed as numerical values based on a concept of system free energy. In this study, in order to evaluate long term creep strength of 9Cr ferritic steel containing B, change in the system free energy during creep of the steel is evaluated as the sum of chemical free energy, strain energy and surface energy, which are obtained by a series of experiments, i.e., chemical analysis using extracted residues, X-ray diffraction, and scanning transmission electron microscopy. The system free energy decreases with creep time. Change in the energy is expressed quantitatively as a numerical formula using the rate constants which depend on applied stress. On the basis of these facts, long term creep strength of the steel can be evaluated at both 948K(675°C) and 973K(700 °C).
Creep Crack Growth in T23 Weldments
Authors: Siefert J.A. , Foulds J.R. 
Published: March 2024

Abstract
The use of the bainitic creep strength enhanced ferritic steel T/P23 has increased over the last decade in a wide range of applications including headers, superheater and reheater tubing and in waterwall tubing. Many issues have been reported in weldments of this material, such as hydrogen induced cracking, reheat cracking and stress corrosion cracking. In order to help characterize high temperature cracking phenomena, including reheat cracking, a limited number of laboratory creep crack growth tests are being conducted as part of an ongoing project. Tests were run on as-welded sections with the test specimen crack-tip located in select zones of the weldment. Test temperatures are intended to bookend the range of applications from a waterwall condition of ~482°C (900°F) to the superheat/reheat condition of 565°C (1050°F). This paper describes the results of some early testing at 482°C (900°F). The tests provided useful insight into the cracking susceptibility of the material at this temperature with respect to not only time-dependent cracking, but also fatigue crack growth and fracture toughness. The paper includes details of the test method and results, as well as findings from post-test metallographic examinations of the tested specimens.
Creep Rupture Properties of Ni-Base Superalloy USC141 as Solution Treated for 700°C Class A-USC Boiler
Authors: Uehara Toshihiro , Aoki Chuya , Ohno Takehiro , Schraven Patrik , Kamoshida Hironori , Imano Shinya 
Published: March 2024

Abstract
Low thermal expansion precipitation strengthening Ni-base superalloy, Ni-20Cr-10Mo-1.2Al-1.6Ti alloy (USC141TM), was developed for 700°C class A-USC steam turbine material by Hitachi, Ltd and Hitachi Metals, Ltd. USC141 is usually solution treated and then aged to increase high temperature strength for turbine blades and bolts. As the estimated 105h creep rupture strength at 700°C is about 180MPa, USC141 could also be expected to apply for boiler tubes. On the other hand, this alloy seems to be only solution treated to apply for boiler tubes because tubes are usually jointed by welding and bended by cold working and thus tube alloys should have low hardness before welding and bending and should be used as solution treated. In this study, the creep properties of USC141 as solution treated was evaluated, and the results and microstructures after creep tests were compared with those as aged. As a result, USC141 as solution treated exhibited almost as same creep rupture properties as that as aged because precipitation at grain boundaries and in grains gradually increased at testing temperatures around 700°C. Furthermore seamless tubes of USC141 were produced and various properties including creep properties are now being evaluated.
Destûr ve Düstûr Şiirleri Üzerine Bazı Tespitler
Authors: TOPCU Mümin 
Published: March 2024

Edebî eserlerimizin bütünüyle tespit edilip tür ve şekil bilgisinin tamamen belirlenememesi nedeniyle bazı edebî ürünlerimizin belirleyici özellikleri ortaya konulamamıştır. “Destûr” ve “düstûr” türü şiirler de bunlardandır. Bir cönkte rastladığımız Şeydâyî, Cemâlî, Hulûsî ve Niyâzî mahlaslı şairlere ait “düstûr” başlıklı dört şiir ilgimizi çekti. Konuyu araştırdığımızda bu şiirler, “destûr” olarak adlandırılmış ve 13. yüzyıldaki “yort savul” ile ilişkilendirilmiştir. Örnekleri az olan bu şiirlerin 19. ve 20. yüzyılda da benzer bir üslûpla devam ettiği belirtilmiş fakat bunların tür mü tarz mı olduğu tartışılmış ve bir neticeye varılamamıştır.
İncelemelerimiz sonucunda “destûr” ve “düstûr” kelimelerinin yazılışlarının aynı olmasının bir belirsizliğe neden olduğu kanaatine vardık. Makalede bu düşünceden hareketle edebiyatımızda “destûr” ve “düstûr” adlı birbirinden farklı iki şiir grubunun oluştuğu iddiasından hareket edeceğiz. Önce Farsça kökenli “destûr” türü ile izin isteme konulu şiirleri kısaca gözden geçireceğiz. Sonra Arapça kökenli “düstûr” kelimesinden hareketle, yazmalarda yer aldığını gördüğümüz “düstûr” başlıklı “sihr-i helâl” tarzı ile yazılmış şiirleri inceleyip bu şiir türlerini tanımaya çalışacağız.
Analisis Informasi Anatomi Pemeriksaan MRI Ankle Joint pada Penggunaan Foot Ankle Coil dan Flex Coil Proton Density Fat Saturation Irisan Sagital
Authors: Kartikasari Yeti , Kurniawan Andrey Nino , Hidayat Subhan Syarif 
Published: March 2024

Background: To get good MRI image quality, a special coil is designed according to the type of examination with various types and sizes so that it can be adjusted to the body to be examined so that the selection of coil is very important in MRI examination. At Dr.R.Soeharso Surakarta Orthopedi Hospital, it was found on an MRI examination of the ankle joint using a foot ankle coil and also sometimes also using a flex coil. The purpose of this study was to determine the difference in anatomical information of ankle joint MRI examination on Proton Density Fat Saturation Sagittal Slices using foot ankle coil and flex coil. Methods: This research is quantitative research with an experimental approach. This research was conducted on 10 volunteers. Respondents assessed image information on the anatomy of the Achilles tendon, talocalcaneal ligament, tibiofibular ligament, talofibular ligament, talotibial ligament, tenton flexor digitorum, extensor digitorum tendon, os calcaneus, os tallus, os tibia. Results: Ten probandus were performed MRI examination of ankle joint, proton density weighting, sagittal slice using foot ankle coil and flex coil. Images are produced that can show predetermined anatomical information, namely: Achilles tendon, talocalcaneal ligament, tibiofibular ligament, talofibular ligament, talotibial ligament, tenton flexor digitorum, extensor digitorum tendon, os calcaneus, os tallus, os tibia. Based on Wilcoxon's nonparametric statistical test in table shows that the resulting p value is 0.001 (p-value is 0.05) which means that there is a significant difference in the overall anatomical information of ankle joint MRI examination on the use of foot ankle coil and flex coil proton density fat saturation sagittal slices and mean rank results (28.50) foot ankle coil (0,001) flex coil.Conclusions: The anatomical information produced in the use of foot ankle coil is better than the anatomical information produced by flex coil on MRI examination of ankle joint proton density fat saturation sagittal slice.
Natural History of Mandibular Function in Spinal Muscular Atrophy Types 2 and 3
Authors: van Bruggen H. Willemijn , Wijngaarde Camiel A. , Asselman Faylynn , Stam Marloes , Creugers Nico H.J. , Wadman Renske I. , van der Pol W. Ludo , Kalaykova Stanimira I. 
Published: March 2024

Background: Hereditary proximal spinal muscular atrophy (SMA) is characterized by abnormal alpha motor neuron function in brainstem and spinal cord. Bulbar dysfunction, including limited mouth opening, is present in the majority of patients with SMA but it is unknown if and how these problems change during disease course. Objective: In this prospective, observational, longitudinal natural history study we aimed to study bulbar dysfunction in patients with SMA types 2 and 3. Methods: We included 44 patients with SMA types 2 and 3 (mean age was 33.6 (95% CI 28.4;38.9) and re-examined them after on average 4 years. None were treated with SMN-modulating treatments before or during the course of this study. Longitudinal assessments included a questionnaire on mandibular and bulbar function, the Mandibular Function Impairment Questionnaire (MFIQ), and a clinical examination of masticatory performance, maximum voluntary bite force, and mandibular movements including the active maximal mouth opening. Results: We found significant higher MFIQ scores and a significant decrease of all mandibular movements in patients with SMA type 2 ( p < 0.001), but not in SMA type 3. Masticatory performance and maximum voluntary bite force did not change significantly. Mean reduction of active maximal mouth opening at follow-up was 3.5 mm in SMA type 2 (95% CI: 2.3; 4.7, p < 0.001). SMA type 2 was an independent predictor for a more severe reduction of the mouth opening (β= –2.0 mm (95% CI: –3.8; –0.1, p = 0.043)). Conclusions: Bulbar functions such as mandibular mobility and active maximum mouth opening decrease significantly over the course of four years in patients with SMA type 2.
Gait Adaptability and the Effect of Ocular Disorders on Visually Guided Walking in Parkinson’s Disease
Authors: Borm Carlijn D.J.M. , De Graaf Debbie , Bloem Bastiaan R. , Theelen Thomas , Hoyng Carel , de Vries Nienke , Weerdesteyn Vivian 
Published: March 2024

Gait disorders are a disabling feature of Parkinson’s disease (PD). To avoid falls, people with PD should be able to adequately adapt their gait. This requires correct response inhibition and integration of visual information. In this small pilot study, we investigated PD-related impairments in gait adaptability and the influence of ocular disorders thereon. Compared with controls, persons with PD were less able to adapt their gait in unexpected situations (U = 21.5, p = 0.013), with only a small influence of ocular disorders on precision stepping (U = 6, p = 0.012 in the ML-direction and in the AP-direction, (U = 20, p = 0.456). This shows that people with PD have more difficulty with precision stepping than healthy controls and experience more problems with adapting their gait. We found only a small impact of ocular disorders on successfully execute precision stepping. The ability to adapt gait, particularly in challenging environmental conditions or with impaired vision, may provide a useful assessment and training option for fall prevention in PD.
The Internet of Things (IoT) in World Practice: Review and Analysis
Authors: Vlasenko Myroslava , Khlaponin Yurii 
Published: March 2024

This article explores the contemporary realm of the Internet of Things (IoT) and its influence on society and the economy. The primary emphasis lies in examining the principal patterns within the realm of IoT, encompassing the escalation of connected device quantities and the utilisation of 5G networks. The article encompasses various facets, including an overview of the evolution and possibilities of IoT, encompassing the advancement of intelligent urban areas and the influence of 5G networks. The analysis of threats and vulnerabilities related to this technology focuses on detecting common flaws, including weak passwords, unsecured network services, and inadequate privacy measures.
Furthermore, the essay presents concrete hazards in diverse sectors that employ IoT technology. Particular emphasis is given to potential cybersecurity vulnerabilities in healthcare, manufacturing, agriculture, retail, transport and logistics, energy, and smart cities. These businesses have distinct challenges and hazards due to incorporating IoT technologies.
The authors also analyse the substantial financial commitment to IoT and its profound influence on the worldwide economy, including data on the expansion of the IoT market and investments in IoT technologies and smart cities. The findings emphasise that the Internet of Things (IoT) substantially influences society and the economy. However, it necessitates meticulous consideration of cybersecurity and privacy concerns. The authors underscore the significance of creating efficacious cyber security policies to safeguard against the possible hazards presented by IoT technology.
Higher Education, Human Development and Growing Inequality in Pre- and Post-Pandemic Haiti
Authors: Marcelin Louis Herns , Cela Toni , Da Silva Fidalgo Mario , Zuraik Christopher 
Published: March 2024

For almost four decades, Haiti has been engaged in the tenuous process of democratization, exacerbated by political, economic, social, climate, and more recently the COVID-19 crises. With each crisis, efforts are made to reimagine national development and revitalize the public sphere, with limited success. Yet, largely absent from these debates is the higher education sector. We argue that the neglect of higher education since Haiti’s transition from dictatorship to democracy is a result of the nation’s failure to articulate a clear vision for the sector. In this article, we ask: How has the failure to articulate a clear purpose for the higher education sector in Haiti exacerbated the country’s systemic crisis amid the COVID-19 pandemic? In order to answer this question, we provide a sociohistorical examination of the role of power and politics in Haitian higher education beginning in its founding in the 19th century culminating at the time of the pandemic. We explore how the absence of a strategic vision for higher education institutions in Haiti and ad-hoc neoliberal policies have impacted the professoriate and students while impeding the sector’s potential contributions to society in a time characterized by systemic and uninterrupted crises including the COVID-19 pandemic.
Politik Pangan: Upaya Membangun Kebijakan Ketahanan Pangan di Sumatera Utara
Authors: Lumbanraja Victor , Fahreza Imam 
Published: March 2024

Upaya membangun ketahanan pangan di Sumatera Utara membutuhkan serangkaian rencan strategis kebijakan. Dalam mengatasi permasalahan ketahanan pangan, diperlukan peran dari seluruh pemangku kepentingan untuk meningkatkan produksi pangan, menjaga kualitas dan memperkuat sumber daya untuk memberi jaminan ketahanan pangan. Tujuan penelitian ini untuk menganalisis politik pangan dalam meningkatkan ketahanan pangan?. Metode penelitian yang digunakan deskriptif kualitatif. Hasil menunjukan politik pangan membutuhkan kerjasana kelembangaan antar wilayah dalam meningkatkan komoditas pertanian yang unggul dalam menjamin ketesediaan pangan. Kebijakan tersebut penting memberikan kualitas, keamanan dan ketahanan pangan ditingkat lokal yang berorentasi pada pemberdayaan masyarakat. Politik pangan yang diimplementasikan dalam kebijakan dan program membutuhkan rencan strategis aspek politik pangan yang mengarah pada keputusan dan kebijakan terkait produksi, distribusi, dan akses pangan. Kondisi tersebut mendorong pemangku kepentingan untuk memberikan penguatan inovasi pertanian seperti penggunaan teknologi pertanian (Smart Farming), dan mengembangkan program diversifikasi dalam menjamin ketersediaan pangan di Sumatera Utara. Implementasi penguatan inovasi tersebut dapat berkelanjutan, membutuhkan rencana kebijakan yang dapat memberikan jaminan ketersediaan pangan.
Persepsi Siswa Terhadap Pembelajaran Daring Pada Mata Pelajaran Agama Hindu di SMKN 2 Katingan Hilir Kabupaten Katingan
Authors: Merliana Ni Putu Eka 
Published: March 2024

Pembelajaran Daring menjadi proses pembelajaran yang diterapkan di masa pandemi Covid 19, karena dengan proses pembelajaran tersebut dapat mengurangi tingkat resiko penularan. Pembelajaran daring haruslah memperhatikan hal utama yaitu dalam penerapan teknologi bagi para siswa. Tidak semua siswa mampu dan memiliki teknologi sebagai pendukung dalam proses pembelajaran daring. SMKN-2 Katingan Hilir Kabupaten Katingan yang merupakan sekolah kejuruan dan lebih mengutamakan pembelajaran praktek sudah menerapkan pembelajaran daring. Tujuan dari penelitian ini adalah untuk mengetahui implementasi penerapan pembelajaran daring yang dilakukan di SMKN-2 Katingan Hilir Kabupaten Katingan khususnya pada mata pelajaran agama Hindu, implikasi atau hal yang berdampak secara langsung dari pemanfaatan teknologi terhadap para siswa dalam proses pembelajaran serta persepsi siswa dalam memanfaatkan teknologi sebagai media pendukung proses pembelajaran secara daring di SMKN-2 Katingan Hilir Kabupaten Katingan. Metode penelitian yang dilakukan dengan menggunakan mix method (Metode campuran) dengan model Concurrent Triangulation. Hasil dari penelitian ini adalah terdapat beberapa pandangan dari para siswa yang mengungkapkan bahwa pemanfaatan teknologi dalam pembelajaran daring merupakan hal yang mudah karena sudah terbiasanya para siswa memanfaatkan teknologi sebelum proses pembelajaran daring diterapkan, dan yang kedua adalah proses pembelajaran daring merupakan proses pembelajaran yang tidak efektif. Hal tersebut dikarenakan tidak pahamnya para siswa dalam menerima materi yang disampaikan oleh Guru terkhusus pada mata pelajaran agama Hindu.
Optimalisasi peran komunitas konservasi tanaman obat keluarga (TOGA) dalam pemberdayaan ekonomi masyarakat
Authors: Latifah Elmiawati , Putri Nindya Yunia , Bunga Cut Dewi , Yusriyah Larisa , Aliffah Ainni Hikmatul , Hidayat Imron Wahyu , Fanani Herma , Afif Naufal , Maharani Betari 
Published: March 2024

Tumbuhan obat dan obat tradisional sejak zaman dahulu memainkan peranan penting dalam menjaga kesehatan, mempertahankan stamina dan mengobati penyakit. Potensi produksi olahan dan tanaman herbal di desa Growong sebenarnya cukup melimpah, namun masih belum dikelola dengan baik, hal ini menyebabkan kurang berfungsinya Kelompok Wanita Tani (KWT) dan terbengkalainya sarana produksi olahan jamu serta potensi yang dimiliki oleh masyarakat belum dimanfaatkan secara optimal. Metode pelaksanaan pengabdian masyarakat yang digunakan pada program ini adalah metode Teknik Participatory Rural Appraisal (PRA) dan transfer knowledge. Berdasarkan hasil observasi dan kesepakatan dengan kelompok tani dan perangkat desa, maka program pendampingan dan sosialisasi yang dilaksanakan meliputi budidaya dan manfaat TOGA, strategi harga produk herbal, penentuan masa kadaluwarsa, masa simpan, informasi label dan kemasan produk herbal, digital marketing serta sertifikasi halal. Pelaksanaan program sosialisasi dan pendampingan ini telah dilaksanakan dengan baik dan lancar serta memberikan manfaat khususnya dalam kompetensi budidaya TOGA dan peningkatan kualitas serta pemasaran produk herbal. Perlu dilakukan upaya keberlanjutan pada pengabdian masyarakat di Desa Growong dengan sinergi yang baik antara masyarakat, institusi pendidikan dan pemerintah setempat dengan memperluas jejaring yang dapat mendukung pemberdayaan TOGA dan pengembangan usaha ekonomi produktif berbasis olahan tumbuhan obat.
Active osseointegration in an ex vivo porcine bone model
Authors: Hall Thomas A. G. , Theodoridis Konstantinos , Kohli Nupur , Cegla Frederic , van Arkel Richard J. 
Published: March 2024

Achieving osseointegration is a fundamental requirement for many orthopaedic, oral, and craniofacial implants. Osseointegration typically takes three to 6 months, during which time implants are at risk of loosening. The aim of this study was to investigate whether osseointegration could be actively enhanced by delivering controllable electromechanical stimuli to the periprosthetic bone. First, the osteoconductivity of the implant surface was confirmed using an in vitro culture with murine preosteoblasts. The effects of active treatment on osseointegration were then investigated in a 21-day ex vivo model with freshly harvested cancellous bone cylinders (n = 24; Ø10 mm × 5 mm) from distal porcine femora, with comparisons to specimens treated by a distant ultrasound source and static controls. Cell viability, proliferation and distribution was evident throughout culture. Superior ongrowth of tissue onto the titanium discs during culture was observed in the actively stimulated specimens, with evidence of ten-times increased mineralisation after 7 and 14 days of culture (p &lt; 0.05) and 2.5 times increased expression of osteopontin (p &lt; 0.005), an adhesive protein, at 21 days. Moreover, histological analyses revealed increased bone remodelling at the implant-bone interface in the actively stimulated specimens compared to the passive controls. Active osseointegration is an exciting new approach for accelerating bone growth into and around implants.