bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Multifunctional Additive Strategy Enables Efficient Pure‐Blue Perovskite Light‐Emitting Diodes
Authors: Liu Yongjie , Wang Shuxin , Yu Zhiqiu , Chen Guoyi , Wang Cheng , Wang Ti , Ke Weijun , Fang Guojia 
Published: May 2023

AbstractLead halide perovskites have shown exceptional performance in light‐emitting devices (PeLEDs), particularly in producing significant electroluminescence in sky‐blue to near‐infrared wavelengths. However, PeLEDs emitting pure‐blue light at 465–475 nm are still not satisfactory. Herein, efficient and stable pure‐blue PeLEDs are reported by controlling phase distribution, passivation of defects, as well as surface modifications using multifunctional phenylethylammonium trifluoroacetate (PEATFA) in reduced‐dimensional p‐F‐PEA2Csn−1Pbn(Br0.55Cl0.45)3n+1 polycrystalline perovskite films. Compared with 4‐fluorophenylethylammonium (p‐F‐PEA+) in the pristine films, phenylethylammonium (PEA+) has lower adsorption energy while interacting with perovskites, resulting in large‐n low‐dimensional perovskites, which can greatly facilitate charge transport within the low‐dimensional perovskite films. The interaction between the CO group in trifluoroacetate (TFA−) and perovskites significantly reduces defects in the perovskite films. Additionally, the electron‐giving CF3 group in TFA‐ uplifts surface potential in the films, resulting in smooth electronic injection in devices. The multifunctional additive strategy leads to elevated radiative recombination and efficient carrier transport in the films and devices. As a result, the devices exhibit a maximum external quantum efficiency (EQE) of 11.87% at 468 nm with stable spectral output, the highest reported to date for pure‐blue PeLEDs. Thus, this study extends the way for high‐efficiency pure‐blue LED with perovskite polycrystal films.
Microdisplays: Mini‐LED, Micro‐OLED, and Micro‐LED
Authors: Miao Wen‐Chien , Hsiao Fu‐He , Sheng Yujia , Lee Tzu‐Yi , Hong Yu‐Heng , Tsai Chun‐Wei , Chen Hung‐Lung , Liu Zhaojun , Lin Chun‐Liang , Chung Ren‐Jei , Ye Zhi‐Ting , Horng Ray‐Hua , Chen Shih‐Chen , Kuo Hao‐Chung , He Jr‐Hau 
Published: May 2023

AbstractThe field of next‐generation microdisplays is flourishing. Relevant display technologies, such as mini‐light emission diodes (mini‐LEDs), micro‐organic light emission diodes (micro‐OLEDs), and micro‐light emission diodes (micro‐LEDs) are thus in the urgent stage of development. From this perspective, comprehensive and systematical analyzes are conducted for the aforesaid microdisplay configurations. A holistic view of microdisplay technologies is developed with the corresponding performance metrics, providing a path for miscellaneous scenarios. Among these scenarios, the applications in augmented reality (AR), virtual reality (VR), wearable devices, and head‐up displays (HUD) are currently attracting considerable attention for deeper human‐digital interactions. However, there is a multiplicity of obstacles and challenges hindering such development. Nevertheless, recent advances in microdisplay technologies hold tremendous promise for the paradigms of these applications, taking a leap forward for next‐generation microdisplays. This review presents perspectives, relevant materials, and the technology landscape for such ongoing display technologies, offering guidance on the design of advanced microdisplays.
Weak X‐Ray to Visible Lights Detection Enabled by a 2D Multilayered Lead Iodide Perovskite with Iodine‐Substituted Spacer
Authors: You Shihai , Yu Panpan , Wu Jianbo , Zhu Zeng‐Kui , Guan Qianwen , Li Lina , Ji Chengmin , Liu Xitao , Luo Junhua 
Published: May 2023

AbstractBroadband photodetectors (PDs) with low detection limits hold significant importance to next‐generation optoelectronic devices. However, simultaneously detecting broadband (i.e., X‐ray to visible regimes) and weak lights in a single semiconducting material remains highly challenging. Here, by alloying iodine‐substituted short‐chain cations into the 3D FAPbI3 (FA = formamidine), a new 2D bilayered lead iodide hybrid perovskite, (2IPA)2FAPb2I7 (1, 2IPA = 2‐iodopropylammonium), that enables addressing this challenge is reported. Such a 2D multilayered structure and lead iodide composition jointly endow 1 with a minimized dark current (6.04 pA), excellent electrical property, and narrow bandgap (2.03 eV), which further gives it great potential for detecting broadband weak lights. Consequently, its high‐quality single crystal PDs exhibit remarkable photoresponses to weak ultraviolet–visible lights (377–637 nm) at several tens of nW cm−2 with high responsivities (>102 mA W−1) and significant detectivities (>1012 Jones). Moreover, 1 has an excellent X‐ray detection performance with a high sensitivity of 438 µC Gy−1 cm−2 and an ultralow detection limit of 20 nGy s−1. These exceptional attributes make 1 a promising material for broadband weak lights detection, which also sheds light on future explorations of high‐performance PDs based on 2D hybrid perovskites.
Interpretable Machine‐Learning and Big Data Mining to Predict Gas Diffusivity in Metal‐Organic Frameworks
Authors: Guo Shuya , Huang Xiaoshan , Situ Yizhen , Huang Qiuhong , Guan Kexin , Huang Jiaxin , Wang Wei , Bai Xiangning , Liu Zili , Wu Yufang , Qiao Zhiwei 
Published: May 2023

AbstractFor gas separation and catalysis by metal‐organic frameworks (MOFs), gas diffusion has a substantial impact on the process' overall rate, so it is necessary to determine the molecular diffusion behavior within the MOFs. In this study, an interpretable machine learing (ML) model, light gradient boosting machine (LGBM), is trained to predict the molecular diffusivity and selectivity of 9 gases (Kr, Xe, CH4, N2, H2S, O2, CO2, H2, and He). For these 9 gases, LGBM displays high accuracy (average R2 = 0.962) and superior extrapolation for the diffusivity of C2H6. And this model calculation is five orders of magnitude faster than molecular dynamics (MD) simulations. Subsequently, using the trained LGBM model, an interactive desktop application is developed that can help researchers quickly and accurately calculate the diffusion of molecules in porous crystal materials. Finally, the authors find the difference in the molecular polarizability (ΔPol) is the key factor governing the diffusion selectivity by combining the trained LGBM model with the Shapley additive explanation (SHAP). By the calculation of interpretable ML, the optimal MOFs are selected for separating binary gas mixtures and CO2 methanation. This work provides a new direction for exploring the structure‐property relationships of MOFs and realizing the rapid calculation of molecular diffusivity.
Interfacial Electrochemical Media‐Engineered Tunable Vanadium Zinc Hydrate Oxygen Defect for Enhancing the Redox Reaction of Zinc‐Ion Hybrid Supercapacitors
Authors: Lee Young‐Geun , Yoo Geun , Jo Yong‐Ryun , An Ha‐Rim , Koo Bon‐Ryul , An Geon‐Hyoung 
Published: May 2023

AbstractZinc‐ion hybrid supercapacitors (ZIHCs) are promising electrochemical energy storage system candidates owing to their eco‐friendliness, low‐cost, reliable safety, and high‐power density. Of particular note, ZIHCs are desirable alternatives to lithium‐ion batteries (LIBs) because they can overcome the disadvantages of LIBs, such as the explosion hazard and the complex manufacturing process. Nevertheless, the low specific capacity of ZIHCs caused by their limited active sites and poor cycling stability because of their low wettability and irreversible Zn dendrite formation at the electrode has hindered their commercial application. Herein, for the first time, the fabrication and interfacial engineering of ZIHCs using vanadium (IV) oxide sulfate (VOSO4) as an additive chemistry agent is described, and the effect of the additive on the electrochemical performance is demonstrated. After the activation process, the resultant supercapacitor exhibits a zinc vanadium hydrate (ZVO) layer on both the anode and cathode. The electrochemical role of the ZVO layer on the electrodes are as follows: i) improved active sites for Zn‐ion intercalation at the cathode, ii) enhanced wettability between electrolyte and electrodes, and iii) buffer layer for the suppression of undesirable and irreversible Zn dendrites at the anode.
Sweetpotato responses to potassium rate and timing in tropical sandy soils
Authors: Figueiredo Ricardo T. , Fernandes Adalton M. , Garreto Francisca G. S. , Silva Jéssica A. , Nunes Jason G. S. , Vargas Pablo F. 
Published: May 2023

AbstractThe response of sweetpotato [Ipomoea batatas (L.) Lam.] to potassium (K) can vary based on soil K availability and the rate and timing of K application. This study evaluated the effects of K application rate and timing on leaf K concentration and yield attributes of sweetpotatoes grown in tropical sandy soils with different K availabilities. Treatments had three rates (60, 120, and 240 kg ha−1 K2O) and four timings (pl, the full rate at planting; pl‐1.3, 1/2 rate at planting plus 1/2 at 1.3 months after planting [MP]; pl‐3, 1/2 rate at planting plus 1/2 at 3 MP; pl‐1.3–3, 1/3 rate at planting plus 1/3 each at 1.3 and 3 MP), including a control (without K application). The benefits of K timings and application rates on sweetpotato yield were greater in K‐deficient soils with the maximum yield of sweetpotato (25.8–34.3 Mg ha−1) at the estimated rate of 153–179 kg ha−1 K2O in three application times. In soil with medium exchangeable K, the maximum total root yield (28.5–34.2 Mg ha−1) occurred at an optimum estimated rate of 113–122 kg ha−1 K2O. In soils with high exchangeable K, K application rates reduced the yield of roots or starch, and no K deficiency occurred in the unfertilized K treatments. To obtain high storage root and starch yields in sweetpotatoes grown in K‐deficient tropical sandy soils, there should be three K applications, and K application rates should be based on K levels already available in the soil.
Elevating community‐driven socioecological participation and action: A case study with Black youth
Authors: Louder Ceewin N. , Meyer Marisol L. , del Rey Gabrielle M. , Franklin Alexis R. 
Published: May 2023

AbstractContext is important when considering how racism acts to harm Black youth. Hence, social scientists developed socioecological theories that consider both the individual and the context(s) which shapes them. We used these theories to make sense of the challenges facing Black youth and identify points for intervention. However, these theories were rarely shared with community participants. Theory, at its core, is a way to make sense of the world. Theory shared in an age‐appropriate manner can help youth make sense of their experiences in a way that promotes psychological wellness. This paper describes the intentional sharing of socioecological theory with community members engaged in two community‐based mental health programs. Our team has collaborated closely with community stakeholders to implement and iteratively improve these programs. This first‐person account presents the doctoral students' experiences in engaging community members in using socioecological theory to improve the programs with which they have identified as useful to their community. The article underscores the importance of elevating community voices when engaging in community‐based research and how that engagement is more fundamental as programs become well‐established.
Adult experiences in Beckwith–Wiedemann syndrome
Authors: Drust William A. , Mussa Alessandro , Gazzin Andrea , Lapunzina Pablo , Tenorio‐Castaño Jair , Nevado Julian , Pascual Patricia , Arias Pedro , Parra Alejandro , Getz Kelly D. , Kalish Jennifer M. 
Published: May 2023

AbstractBeckwith–Wiedemann syndrome (BWS) is an overgrowth and epigenetic disorder caused by changes on chromosome 11p15. The primary features requiring management in childhood include macroglossia, omphalocele, lateralized overgrowth, hyperinsulinism, and embryonal tumors. Management guidelines have not been developed for adults with BWS and there have been few studies to assess the clinical needs of these patients. Furthermore, there have been few studies on the psychosocial implications of BWS in children or adults. Here, we present a descriptive summary of data gathered from two separate adult BWS cohorts. The first, a patient‐based survey cohort, includes self‐reported health information and recollections about BWS experiences, while the second provides results of a medical record‐based assessment from patients in an overgrowth registry. Results highlight the clinical features and medical issues affecting two large independent cohorts of adults with BWS while noting similarities. Open‐ended questions asked of the survey cohort yielded themes to guide future qualitative studies. Finally, the study demonstrated the reliability of patient‐reported data and the utility of international partnerships in this context.
Macro peroxide initiators based on autoxidized unsaturated plant oils: Block/graft copolymer conjugates for nanotechnology and biomedical applications
Authors: Hazer Baki 
Published: May 2023

AbstractThe autoxidation of unsaturated fatty acids and their esters is one of the most important reactions in food and biological systems. Autoxidation is a type of reaction between air oxygen and unsaturated plant oils. This reaction starts with a hydrogen abstraction on the methylene group adjacent double bond, leaving a radical onto the carbon atom. Molecular oxygen attacks this radical leading to produce peroxide and hydroperoxide derivatives of the oligomerized unsaturated plant oils. Because peroxide groups thermally cleave to produce free radicals, hydroperoxide derivatives of unsaturated plant oil oligomers can be used in the free radical polymerization of vinyl monomers leading to the related block/graft copolymers. The obtained copolymers combined with the biodegradable natural plant oil gain superior properties such as biodegradability and softness. In this review article, the in vitro autoxidation of well‐known unsaturated plant oils‐soybean oil, linseed oil, and castor oil and some related unsaturated fatty acids‐oleic acid, linoleic acid, and ricinoleic acid was carried out under atmospheric conditions with or without exposing white light. Because the autoxidized unsaturated oil/fatty acids contain peroxide/hydroperoxide groups (they are referred to as macro peroxide initiators) that they are used in the free radical polymerization of vinyl monomers to obtain block/graft copolymers. The improved polymerization conditions, characterization, and applications of the obtained products will be discussed.
Self‐flocculation and its mechanism of natural rubber latex by accelerant‐modified silica
Authors: Xiao Yao , Xu Zhenchun , Gong Zheng , Li Biao , Huang Yinggang , Bian Huiguang , Wang Chuansheng 
Published: May 2023

AbstractIn this paper, an accelerant with vulcanization‐promoting and silanization‐promoting effects, 1,3‐diphenylguanidine (DPG), is loaded on green filler silica by high‐energy ball milling technology. Meanwhile, DPG breaks the ionization equilibrium of latex and realizes the self‐flocculation. The DPG‐induced self‐flocculation technology promotes the dispersion of silica and the silanization reaction, forming more complete filler‐rubber network and three‐dimensional crosslinking network. X‐ray diffraction, Fourier‐transform infrared spectroscopy, X‐ray photoelectron spectroscopy, and thermogravimetric analysis results show that the ball milling technology makes DPG strongly adsorbed on the surface of silica, and the loading rate is 14.4%. Compared with dry mixing, the ball milling‐self‐flocculation technology increase the silanization index, tensile strength and aging coefficient by 8%, 31%, and 19%, respectively. The curing rate is improved, and the rolling resistance is the lowest. This research provides a green flocculation technology of the raw materials in formula without other flocculants and acidic wastewater discharge, avoiding the serious dust pollution and high energy consumption in the dry mixing process, as well as the poor aging resistance of rubber in the acid flocculation process of latex.
A review of Chifengiinae (Insecta: Orthoptera: Prophalangopsidae) with description of new Jurassic material from the northwestern Junggar Basin, China
Authors: Xu Chunpeng , Wang He , Fang Yan , Zhang Qianqi , Li Jiahao , Zhang Haichun 
Published: May 2023

AbstractA complete and well‐preserved forewing assigned to the orthopteran insect Parahagla cheni Xu, Fang and Zhang, 2023 is described from the Lower Jurassic Badaowan Formation of the northwestern Junggar Basin (Karamay, Xinjiang, northwestern China), based on which the species is diagnostically revised. It represents the earliest record of the subfamily Chifengiinae under the family Prophalangopsidae. The subfamily Chifengiinae is reviewed and a key to its genera and species is provided in the discussion. A further discuss of the palaeobiogeographic distribution of Chifengiinae shows that the subfamily probably first appeared in the Palaeoarctic in the earliest Jurassic, and later quickly migrated and occupied most areas of eastern Palaeoarctic from the Middle Jurassic to the Early Cretaceous.
Erläuterungen zur aktuell überarbeiteten Richtlinie 805 zur Bewertung von Ingenieurbauwerken der Deutschen Bahn
Authors: Steffen Sascha , Niemann Peter , Geißler Karsten 
Published: May 2023

AbstractFür die Nachrechnung und Bewertung von Eisenbahnbrücken hat sich die seit ca. 30 Jahren angewandte Richtlinie 805 sehr gut bewährt. Im Rahmen der aktuellen, durch die DB Netz AG vorgenommenen Überarbeitung der Richtlinie wird eine gewisse Angleichung an die europäischen Normen, insbesondere bei den charakteristischen Werten, Sicherheitsfaktoren und Kombinationsbeiwerten angestrebt. Allerdings muss sehr sensibel mit den normativen Regelungen umgegangen werden, da eine „Neubauvorsorge“ für die Bestandsbewertung nicht möglich und auch nicht notwendig ist – im Gegenteil, diese würde zu volkswirtschaftlich relevanten Fehlbewertungen von Bauwerken mit ausreichender Zuverlässigkeit führen. Im vorliegenden Beitrag werden zu den einzelnen Modifikationen der Richtlinie 805 hinsichtlich Festlegungen von Einwirkungen, Sicherheitselementen sowie Nachweisen im Grenzzustand der Tragfähigkeit und der Ermüdung die wesentlichen Hintergründe erläutert.
Mechanisch‐adhäsive Frischbetonverbundsysteme: Untersuchungen zur Verbundentwicklung und Haftzugfestigkeit
Authors: Heinlein Ulli 
Published: May 2023

AbstractFrischbetonverbundsysteme werden als zusätzlich abdichtende Maßnahme auf wasserundurchlässigen Betonkonstruktionen eingesetzt und bereits vor dem Betoneinbau verlegt. Sie erzielen einen Verbund mit dem Frischbeton und nutzen dafür u. a. Vliese, die während des Betoneinbaus mit Zementleim gefüllt werden müssen. Allerdings ist bisher nicht bekannt, wie sich Zementleim aus dem Frischbeton abtrennt, welche Eigenschaften er im Vlies hat oder welche Vlieseigenschaften für FBVS vorteilhaft sind. Der Beitrag beschäftigt sich daher mit dem Vliesverbund und betrachtet zuerst das Deformationsverhalten der Vliese im Betonierprozess. Während des Betoneinbaus werden Vliese zuerst komprimiert und entspannen sich mit fortlaufender Zementleimfüllung. Sobald der Frischbeton eingebracht ist, beginnen außerdem Filterprozesse, die Überschusswasser und eine begrenzte Menge feiner Feststoffe in das Vlies abtrennen. Dabei bildet sich ein Filterkuchen auf dem Vlies und ein wasserreicher Zementleim im Vlies. Erst mit einsetzender Vibrationsverdichtung wird der Filterkuchen gelockert, weiterer Feststoff in das Vlies eingetragen, das Wasser‐Feststoff‐Verhältnis im Vlies gesenkt und ein Hinterlaufschutz erreicht. Der Haftverbund entwickelt sich anschließend proportional zur Spaltzugfestigkeit des Betons und wird maßgeblich durch die Zementsteinfestigkeit beeinflusst. Porenarme und leichte Vliese sind dabei vorteilhaft, da sie weniger Überschusswasser aus dem Frischbeton abtrennen.
Bioprocess in‐line monitoring using Raman spectroscopy and Indirect Hard Modeling (IHM): A simple calibration yields a robust model
Authors: Müller David Heinrich , Flake Carsten , Brands Thorsten , Koß Hans‐Jürgen 
Published: May 2023

AbstractTo increase the process productivity and product quality of bioprocesses, the in‐line monitoring of critical process parameters is highly important. For monitoring substrate, metabolite, and product concentrations, Raman spectroscopy is a commonly used Process Analytical Technology (PAT) tool that can be applied in‐situ and non‐invasively. However, evaluating bioprocess Raman spectra with a robust state‐of‐the‐art statistical model requires effortful model calibration. In the present study, we in‐line monitored a glucose to ethanol fermentation by Saccharomyces cerevisiae (S. cerevisiae) using Raman spectroscopy in combination with the physics‐based Indirect Hard Modeling (IHM) and showed successfully that IHM is an alternative to statistical models with significantly lower calibration effort. The IHM prediction model was developed and calibrated with only 16 Raman spectra in total, which did not include any process spectra. Nevertheless, IHM's root mean square errors of prediction (RMSEPs) for glucose (3.68 g/L) and ethanol (1.69 g/L) were comparable to the prediction quality of similar studies that used statistical models calibrated with several calibration batches. Despite our simple calibration, we succeeded in developing a robust model for evaluating bioprocess Raman spectra.
Analysing organisations' engagement with and impacts to sustainability
Authors: Lozano Rodrigo 
Published: May 2023

AbstractThere has been increasing interest on how organisations address the four dimensions of sustainability. Despite calls for a holistic perspective, empirical research on sustainable organisations has been carried out on (1) engagement efforts, focussing inside the organisation, i.e., the system elements engage with sustainability, or (2) efforts to contribute to sustainability, focussing outside the organisation, i.e., how the organisation as a whole impacts sustainability. A survey was developed to investigate engagement of the system elements and their contribution to sustainability, from which 210 full responses were obtained. The data were analysed using descriptive analysis, Friedman test to rank the engagement of the organisation system elements with sustainability, ratio analyses (positive to negative) and ANOVAs regarding organisation type and size. The results show that the organisation system elements most engaged with sustainability are research and management, and strategy, and the least are operations and production, products, procurement, and supply chain. The impact ratios are highest from research, services, and management and strategy. The ANOVA test results demonstrate that the type of organisation does not affect how the system elements engage with and impact sustainability, with some exceptions. The paper proves that the inside and outside sustainability efforts of an organisation are not separated but intertwined through a series of connections. The results are integrated into for the “organisation system elements engagement and impact to sustainability” model. Organisations must take a holistic a systems perspective that considers the system elements engagement and how each of these contribute to sustainability and its dimensions.