bluuebunny/crossref_metadata_2025_split huggingface dataset:
KARAKTERISTIK KOMPONEN FUEL NOZZLE GASKET PESAWAT CESSNA GRAND CARAVAN 208B
Authors: Admin Admin , Suroso Indreswari , Utami Noviana 
Published: July 2022

Pesawat Cessna Grand Caravan 208B merupakan pesawat angkut ringan bermesin tunggal dengan penggerak propeller atau engine turboprop. Ada banyak komponen yang saling berhubungan pada mesin pesawat, salah satunya adalah fuel nozzle gasket yang berada diantara fuel nozzle dan combustion chamber yang berfungsi untuk menjaga tekanan yang dihasilkan dari ruang bakar agar tidak keluar dari mesin. Tujuan penelitian ini adalah untuk mempelajari karakteristik komponen fuel nozzle gasket pesawat Cessna Grand Carravan 208B yang meliputi 1). Komposisi kimia, 2.) Kekerasan Vickers, 3). Laju keausan, 4). Struktur mikro, dan 5). Laju korosi.
Metode yang digunakan dalam penelitian ini adalah metode kualitatif melalui pengujian: 1). komposisi kimia yang digunakan untuk mempelajari unsur-unsur dan persentase, 2). kekerasan Vickers yang digunakan untuk mempelajari tingkat kekerasan. 3). keausan yang digunakan untuk mempelajari laju keausan, 4). struktur mikro yang digunakan untuk mempelajari fasa-fasa yang terjadi, dan 5). korosi yang digunakan untuk mempelajari laju korosi.
Karakteristik komponen fuel nozzle gasket pesawat Cessna Grand Carravan 208B meliputi 1). komposisi kimia dengan unsur-unsur dominan adalah unsur-unsur Fe 69,6500%; Cr 17,600%; Ni 9,1190%; Mn 1,7230%; Si 0,4920% dan termasuk dalam paduan baja austenitik AISI 304 dengan unsur-unsur C < 0,07%; Mn <2%; Cr 17 - 19%; dan Ni 8,5 - 10,5%, 2). kekerasan Vickers rata-rata sebesar 162,26 VHN yang dipengaruhi unsur-unsur Cr, Mn, dan C, 3). struktur mikro menunjukkan fasa perlit (yang tersusun oleh unsur Fe dan unsur C) lebih dominan dibandingkan dengan fasa ferit (yang tersusun oleh unsur Cr), 4). laju keausan sebesar 0,56020 mm3/kgm dan tergolong rendah yang dipengaruhi adanya unsur Mn. 5). laju korosi sebesar 0,036 MPY dan dikategorikan sebagai relative corrosion resistance “outstanding” yang dipengaruhi oleh unsur Cr dan unsur Ni.
Design of Hybrid Renewable Energy Systems for a Village in Selangor, Malaysia
Authors: Muaz Izzuddeen Sabudin  , Mohd Noor Syawal Mustapha  , Muhammad Adzim Mohd Rozi  , Devaraj Tharuma Rajah  
Published: July 2022

Conventional fossil fuel generation releases high amount of carbon dioxide and contributed to the climate change problem. Hence, the use of renewable energy sources is important to mitigate the greenhouse gasses emissions. Remote or rural areas relies heavily on diesel generations for electricity due to no grid connection. Therefore, a microgrid system with renewable resources has high potential for implementation in these areas. This paper discusses on the hybrid renewable energy system design for a village in Selangor, Malaysia. The load profile data collected based on survey and interview with the locals. Meanwhile, the solar radiation and temperature data were obtained from NASA POWER database. The hydropower resource data was obtained through site visit at the location. HOMER software was used to simulate and determine the most optimal hybrid renewable energy system. Additionally, sensitivity analysis was conducted to identify effect of growth in load profile with respect to the optimal configuration. The optimization results shows that PV-hydro-grid is the most optimal system. It has lower Net Present Cost with higher renewable penetration compared to other configurations.
Closing Now to Reopen Better Tomorrow? Pedagogical Continuity in Latin American Universities During the Pandemic
Authors: Pedró Francesc , Ramos Torres Débora 
Published: July 2022

Abstract
Latin American universities have struggled to ensure pedagogical continuity since the beginning of the pandemic. The objective of this research is to find out how Latin American universities responded to the many challenges posed by their commitment to pedagogical continuity, namely in the technological, pedagogical, financial, and socio-emotional domains, and the support received from their governments. Data was collected through a survey sampling 100 universities in the region covering 16 different countries. The results suggest that many of the challenges faced by universities were more related to the lack of pedagogical skills, from both students and teachers, than to the pitfalls of technological capacity. The survey results are also indicative that the forms of teaching and learning that have begun as emergency formulas to guarantee pedagogical continuity will evolve and consolidate from the time of the reopening, as part of the hybrid model with which we will have to coexist for the time being, and which may become the new pedagogical norm in higher education in the context of a foreseeable restructuring of its provision.
Bacterial Toxin‐Responsive Biomimetic Nanobubbles for Precision Photodynamic Therapy against Bacterial Infections
Authors: Zhuge Deli , Li Li , Wang Haonan , Yang Xuewei , Tian Dongyan , Yin Qingqing , Chen Hao , Weng Cuiye , Wen Bin , Lin Yijing , Huh Joo Young , Zhang Xufei , Chen Mengchun , Xie Congying , Zhao Yingzheng , Chen Yijie 
Published: July 2022

AbstractWith few options available for the effective treatment of multidrug‐resistant bacteria, photodynamic therapy (PDT) has emerged as a promising therapeutic strategy that does not promote the development of antibiotic resistance. Unfortunately, the beneficial bactericidal effect of PDT is oftentimes accompanied by the uncontrollable production of reactive oxygen species. To overcome this issue, a pore‐forming toxin (PFT)‐responsive biomimetic nanobubble is designed, which is constructed by co‐encapsulating a perfluorocarbon nanoemulsion and a photosensitizer within the red blood cell membrane. It is shown that PFTs derived from three pathogens, including methicillin‐resistant Staphylococcus aureus (MRSA), group A Streptococcus (GAS), and Listeria monocytogenes (LM), can be effectively absorbed by the nanobubble. Upon toxin absorption, the formation of pores on the nanobubble surface allows the accelerated release of oxygen dissolved inside the nanoemulsion along with the photosensitizer, thus resulting in enhanced PDT and bactericidal efficacy. In three skin infection models, treatment with the nanobubbles results in significantly decreased lesion formation and reduced inflammation. In addition to oxygen, the platform can be used to deliver nitric oxide in a bacterial toxin‐dependent manner. Overall, biomimetic nanobubbles may work as a broad gas delivery system that is capable of responding to a variety of PFT‐based stimuli for precision PDT.
Enabling Electron Injection for Microbial Electrosynthesis with n‐Type Conjugated Polyelectrolytes
Authors: Quek Glenn , Vázquez Ricardo Javier , McCuskey Samantha R. , Kundukad Binu , Bazan Guillermo C. 
Published: July 2022

AbstractMicrobial electrosynthesis—using renewable electricity to stimulate microbial metabolism—holds the promise of sustainable chemical production. A key limitation hindering performance is slow electron‐transfer rates at biotic–abiotic interfaces. Here a new n‐type conjugated polyelectrolyte is rationally designed and synthesized and its use is demonstrated as a soft conductive material to encapsulate electroactive bacteria Shewanella oneidensis MR‐1. The self‐assembled 3D living biocomposite amplifies current uptake from the electrode ≈674‐fold over controls with the same initial number of cells, thereby enabling continuous synthesis of succinate from fumarate. Such functionality is a result of the increased number of bacterial cells having intimate electronic communication with the electrode and a higher current uptake per cell. This is underpinned by the molecular design of the polymer to have an n‐dopable conjugated backbone for facile reduction by the electrode and zwitterionic side chains for compatibility with aqueous media. Moreover, direct arylation polycondensation is employed instead of the traditional Stille polymerization to avoid non‐biocompatible tin by‐products. By demonstrating synergy between living cells with n‐type organic semiconductor materials, these results provide new strategies for improving the performance of bioelectrosynthesis technologies.
A Reactive Superhydrophobic Platform for Living Photolithography
Authors: Xie Xinjian , Chen Xinghao , Levkin Pavel A. , Feng Wenqian 
Published: July 2022

AbstractSuperhydrophobic surfaces with regional functions have widespread applications in biotechnology, diagnostic applications, and micro‐chemical synthesis and analysis. However, owing to their chemical inertness, superhydrophobic surfaces with chemical reactivity are difficult to achieve. Superhydrophobic surfaces that can be further modified with varied densities and expanded species of the functional moieties are not readily available. In this study, a single‐step approach to achieve a reactive superhydrophobic surface is reported, on which chemical grafting of a library of molecules can be carried out through surface‐initiated atom‐transfer radical addition or surface‐initiated atom‐transfer radical polymerization. The excellent spatial and temporal controllability of these chemical processes under visible light enables us to take advantage of programmed liquid‐crystal‐display (LCD) or Digital Light Processing (DLP) photolithography systems to effortlessly regulate the location, density, and species of the functional molecules on the reactive superhydrophobic surface. The distinctive properties of this surface will provide new insight into intelligent superhydrophobic material development and practical applications, such as aqueous/oil microdroplets array, multi‐anti‐counterfeiting labels and integrated microfluidic reactors with enzymes for chemical logic learning.
Efficient Electroreduction of Nitrate into Ammonia at Ultralow Concentrations Via an Enrichment Effect
Authors: Song Zhimin , Liu Yan , Zhong Yongzhi , Guo Qing , Zeng Jie , Geng Zhigang 
Published: July 2022

AbstractThe electroreduction of nitrate (NO3−) pollutants to ammonia (NH3) offers an alternative approach for both wastewater treatment and NH3 synthesis. Numerous electrocatalysts have been reported for the electroreduction of NO3− to NH3, but most of them demonstrate poor performance at ultralow NO3− concentrations. In this study, a Cu‐based catalyst for electroreduction of NO3− at ultralow concentrations is developed by encapsulating Cu nanoparticles in a porous carbon framework (Cu@C). At −0.3 V vs reversible hydrogen electrode (RHE), Cu@C achieves Faradaic efficiency for NH3 of 72.0% with 1 × 10−3 m NO3−, which is 3.6 times higher than that of Cu nanoparticles. Notably, at −0.9 V vs RHE, the yield rate of NH3 for Cu@C is 469.5 µg h−1 cm−2, which is the highest value reported for electrocatalysts with 1 × 10−3 m NO3−. An investigation of the mechanism reveals that NO3− can be concentrated owing to the enrichment effect of the porous carbon framework in Cu@C, thereby facilitating the mass transfer of NO3− for efficient electroreduction into NH3 at ultralow concentrations.
Microfluidic Device for Monitoring Catalytic Events on Armored Bubbles
Authors: Dedovets Dmytro , Zhang Shi , Leng Jacques , Pera‐Titus Marc 
Published: July 2022

AbstractA polydimethylsiloxane‐based microfluidic device allows monitoring local oxidation events in organic solvents at the level of an individual air bubble armored with surface‐active low‐surface energy catalytic particles. This new technique permits tunable design of microreactors for gas‐liquid‐solid reactions.
Research Progress on the Design of Structural Color Materials Based on 3D Printing
Authors: Zhao Chen‐fei , Wang Jun , Zhang Zhuo‐qing , Chi Congcong 
Published: July 2022

AbstractThe structural color is produced by the reflection of light through a periodic dielectric structure with photonic bandgap. Because of its special visual effects, researchers in many fields begin to pay attention to photonic crystals with structural colors. This review focuses on the combination of 3D printing technology and photonic crystal structural color materials, summarizes the influence factors of structural color rendering mechanism and the evaluation of color performance, and summarizes the research of structural color materials in simulation. Finally, the challenges faced by structural color materials are summarized, and the future development trend of structural color materials is prospected.
Boost Lasing Performances of 2D Semiconductor in a Hybrid Tungsten Diselenide Monolayer/Cadmium Selenide Quantum Dots Microcavity Laser
Authors: Lin Hsiang‐Ting , Chang Chiao‐Yun , Yu Cheng‐Li , Lee Andrew Boyi , Gu Shih‐Yu , Lu Li‐Syuan , Zhang Yu‐Wei , Lin Shih‐Yen , Chang Wen‐Hao , Chang Shu‐Wei , Shih Min‐Hsiung 
Published: July 2022

AbstractMonolayer (ML) transition metal dichalcogenides (TMDCs) are suitable for use in low‐threshold, room‐temperature lasers. 2D semiconductor lasers are coherent, compact, and are suitable for multispectral light sources. 0D quantum dot technology has been applied in broadband‐emitting devices and high‐quality display systems. Herein, dual‐color continuous‐wave microcavity lasers are investigated by integrating a tungsten diselenide (WSe2) monolayer and cadmium selenide (CdSe) quantum dots (QDs) into a single microdisk cavity. The hybrid TMDC/QD microcavity device not only achieves lasing in two distinct wavelength regions but also boosts the lasing performances of the WSe2 monolayer due to the energy conversion between the two gain materials. Variations in the spectra obtained under power‐dependent lasing are examined, and the temporal coherence properties of the lasing signals are also characterized to verify the lasing actions. The results indicate that the lasing threshold of the 2D WSe2 monolayer cavity with the CdSe QDs is reduced by more than 2.5 times compared with the WSe2 cavity without the QDs. These findings both expand the wavelength range of TMDC‐based compact lasers at room temperature and facilitate their implementation in applications such as photonic integrated circuits, broadband light‐emitting diodes, and quantum display systems.
AIE Molecules UV‐Filtering Effect Improves the Photostability of Organic Solar Cells
Authors: Zeng Li , Zhang Lifu , Mao Liucheng , Hu Xiaotian , Wei Yen , Tan Licheng , Chen Yiwang 
Published: July 2022

AbstractDue to the poor stability of organic solar cells (OSCs), especially ultraviolet light (UV) stability, they are not yet up to the standard for commercial applications. Inverted devices based on the ZnO electron transport layer (ETL) are relatively thermal‐ and air‐stable, while their UV light stability is poor. Moreover, the active layer materials undergo severe degradation under UV light, which also causes the degradation of the device. Here, aggregation‐induced emission (AIE) molecules as an optical barrier layer are coated between ZnO‐ETL and active layer to fabricate efficient OSCs with excellent UV photostability. AIE molecules can avoid direct photodegradation of the active layer materials by absorbing UV light. At the same time, they can passivate the oxygen defects on the ZnO surface and prevent photocatalytic degradation of the active layer materials. Therefore, the ZnO/TPIZ‐based devices maintain 84% of the original power conversion efficiency (PCE) with continuous irradiation by 5 mW cm–2 UV light (365 nm) for 1500 h, and similarly T80 for more than 700 h under 20 mW cm–2 UV light exposure. Moreover, the ZnO/TPIZ‐based devices also preserve excellent thermal stability accompanying the upgrading of PCE.
Lattice Model of Fluid Transport in Mixed Matrix Membranes
Authors: Yuan Tianmu , Sarkisov Lev 
Published: July 2022

AbstractThis work offers a computationally efficient theoretical framework to investigate transport phenomena in complex systems such as mixed matrix membranes (MMMs). It is demonstrated here that a wide variety of heterogeneous, disordered geometries can be constructed using lattice models. These geometries combined with the dynamic mean field theory (DMFT) provide useful insights on the distribution of density and flux in the structures. From this work, the DMFT emerges as a theoretical playground to explore transport phenomena in MMMs under a variety of conditions and probe some of the assumptions involved in the commonly used macroscopic models. As a case study, a comparison of the predictions of the DMFT is considered with several classical macroscopic theories. In the preliminary observations, the study points to a much greater impact of the pore blocking effects on the overall transport of the composite system in comparison with the macroscopic models.
Resistive Random Access Memory Behaviors in Organic–Inorganic Hybrid Ultra‐Thin Films
Authors: Kim Min Ju , Martinez Alba , Jeong Jaejoong , Kim Seongho , Hwang Wan Sik , Cho Byung Jin 
Published: July 2022

AbstractResistive random‐access memory (ReRAM) has been considered for future memory devices, because of its low‐power consumption and a high degree of integration. In this study, hybrid (H‐) ReRAM devices are proposed using ultra‐thin (<10 nm) Al, Hf, and Zr hybrid films prepared via initiated chemical vapor deposition (iCVD). The hybrid films homogeneously consist of organic and inorganic components, which allow simultaneous metal atoms migration and oxygen vacancy generation. Regardless of hybrid matrix, H‐ReRAMs show highly reliable performance results (on/off ratio >104, endurance >106, retention >104 s), which are notable results compared to conventional ReRAM devices. The resistance changes of the conducting filament in the devices are observed under various temperature conditions to prove the heterogenous filament dynamics in the hybrid matrix. The conducting filament composes of a metallic component and oxygen vacancies give unique properties to H‐ReRAM devices, according to the combination of electrode and hybrid material. It has the potential to precise control of conducting filament by two different filament dynamics in the hybrid matrix. The H‐ReRAM is one of the candidates for alternative memory devices as well as neuromorphic and cognitive computing devices.
‘In most supermarkets food does not cost £3 per day …’ The impact of the school food voucher scheme during COVID‐19
Authors: Lalli Gurpinder Singh 
Published: July 2022

AbstractHouseholds with children eligible for Free School Meals are at risk of food insecurity. This paper reports on a rapid‐response study that investigated the impact of the school food voucher scheme during the COVID‐19 crisis on young people, families and schools. It pays close attention to the reliance of the state on the goodwill of society and its citizens in feeding those most in need. The Capabilities Approach is used to highlight factors that inhibited and restricted the use of the vouchers to produce the capability of having good nutrition for children in need of Free School Meals. The approach moves towards creating a society where children and young people are able to lead a life of their own choice and contribute to key policy decisions. This qualitative study funded by the British Education Research Association was conducted between September 2020 and March 2021. The study posed two research questions: (1) how have schools responded to COVID‐19 in relation to food during holiday provision; and (2) what have families identified as barriers to accessing the school food voucher scheme? Data collection involved online interviews with young people, schools and organisations (i.e. public health, director from the food industry. etc.). The findings highlight the difficulties with accessing and using the school food voucher and implications for future policy directions. Owing to this being a small‐scale study, it is not generalisable to the wider population but does highlight localised issues.
Paediatric BCOR‐associated sarcomas with a novel long spliced internal tandem duplication of BCOR exon 15
Authors: Goh Jian Yuan , Kuick Chik Hong , Sugiura Masahiro , Aw Sze Jet , Zhao Manli , Tang Hongfeng , Gunaratne Sandini , Zhu Fucun , Cai Lin , Teh Bin Tean , Thorner Paul S , Chang Kenneth Tou En 
Published: July 2022

AbstractClear cell sarcoma of the kidney (CCSK) and primitive myxoid mesenchymal tumour of infancy (PMMTI) are paediatric sarcomas that most commonly harbour internal tandem duplications (ITDs) of exon 15 of the BCOR gene, in the range of 87–114 base pairs (bp). Some cases, instead, have BCOR‐CCNB3 or YWHAE‐NUTM2 gene fusions. About 10% of cases lack any of these genetic alterations when tested by standard methods. Two cases of CCSK and one PMMTI lacking the aforementioned mutations were analysed using Archer FusionPlex technology. Two related BCOR exon 15 RNA transcripts with ITDs of lengths 388 and 96 bp were detected in each case; only the 388 bp transcript was identified when genomic DNA was sequenced. In silico analysis of this transcript revealed acceptor and donor splice sites indicating that, at the RNA level, the 388‐bp transcript was likely spliced to form the 96‐bp transcript. The results were confirmed by Sanger sequencing using primers targeting the ITD breakpoint. This novel and unusually long ITD segment is difficult to identify by DNA sequencing using typical primer design strategies flanking entire duplicated segments because it exceeds the typical read lengths of most sequencing platforms as well as the usual fragment lengths obtained from formalin‐fixed paraffin‐embedded material. As diagnosis of CCSK and PMMTI may be challenging by morphology and immunohistochemistry alone, it is important to identify mutations in these cases. Knowledge of this novel BCOR ITD is important in relation to primer design for detection by sequencing, and using RNA versus DNA for sequencing.
PROTOCOL: Group‐based community interventions to support the social reintegration of marginalised adults with mental illness
Authors: Dalgaard Nina T. , Flensborg Jensen Maya C. , Bengtsen Elizabeth , Krassel Karl F. , Vembye Mikkel H. 
Published: July 2022

AbstractThis is the protocol for a Campbell systematic review. The main objective is to explore the general efficacy of group‐based community interventions aimed at supporting marginalised adults with mental illness and related problems on outcomes such as problem behaviour, subjective well‐being, homelessness, poverty and employment. Furthermore, the objective is to explore the potential advantages/disadvantages of using a group‐based versus an individual intervention when targeting specific problems or when using specific types of interventions.