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A mild, configurable, flexible CoNi-LDH（v）/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation

Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue Cheng Dingsheng Wu Hao Gao Qingqing Wang Pengfei Lv sam S.Yoon Qufu Wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University School of Mechanical Engineering Korea University

Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-LDH） as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-LDH nanosheets enriched with H vacancies (CoNi-LDH（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-LDH（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnSO4electrolyte （pH=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high discharging *** abundant H vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-LDH（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery H vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

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Finite element analysis of small-scale hot compression testing

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Journal of Materials Science & Technology 2021年第17期76卷 174-188页

作者： Patryk Jedrasiak hugh Shercliff Department of Engineering University of CambridgeTrumpington StCambridgeCB21PZUK

This paper models hot compression testing using a dilatometer in loading *** small-scale tests provide a high throughput at low cost,but are susceptible to inhomogeneity due to friction and temperature gradients.A novel method is presented for correcting the true stress-strain constitutive response over the full range of temperatures,strain-rates and *** nominal response from the tests is used to predict the offset in the stress-strain curves due to inhomogeneity,and this stress offsetΔσis applied piecewise to the data,correcting the constitutive response in one iteration.A key new feature is the smoothing and fitting of the flow stress data as a function of temperature and strain-rate,at multiple discrete *** corrected model then provides quantitative prediction of the spatial and temporal variation in strain-rate and strain throughout the sample,needed to correlate the local deformation conditions with the microstructure and texture *** study uses a detailed series of 144 hot compression tests of a Zr-Nb *** this is an important wrought nuclear alloy in its own right,it also serves here as a test case for modelling the dilatometer for hot testing of high temperature alloys,particularly those with dualα-βphase microstructures(such as titanium alloys).

关键词： Finite element analysis Process modelling Hot compression testing Upsetting Zr alloys Ti alloys

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Stress-augmented thermal activation:Tribology feels the force

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Friction 2018年第1期6卷 1-31页

作者： hugh SPIKES Tribology Group Department of Mechanical EngineeringImperial College

In stress-augmented thermal activation, the activation energy barrier that controls the rate of atomic and molecular processes is reduced by the application of stress, with the result that the rate of these processes increases exponentially with applied stress. This concept has particular relevance to Tribology, and since its development in the early twentieth century, it has been applied to develop important models of plastic flow, sliding friction, rheology, wear, and tribochemistry. This paper reviews the development of stress-augmented thermal activation and its application to all of these areas of Tribology. The strengths and limitations of the approach are then discussed and future directions considered. From the scientific point of view, the concept of stress-augmented thermal activation is important since it enables the development of models that describe macroscale tribological performance, such as friction coefficient or tribofilm formation, in terms of the structure and behaviour of individual atoms and molecules. This both helps us understand these processes at a fundamental level and also provides tools for the informed design of lubricants and surfaces.

关键词： stress activation stress augmented thermal activation mechanochemistry friction EHD friction wear Eyring

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Masirah-the other Oman ophiolite:A better analogue for mid-ocean ridge processes?

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Geoscience Frontiers 2017年第6期8卷 1253-1262页

作者： hugh Rollinson Geoscience University of DerbyKedleston RoadDerby DE22 1GBUK

Oman has two ophiolites-the better known late Cretaceous northern Oman(or Semail)ophiolite and the lesser known and smaller,Jurassic Masirah ophiolite located on the eastern coast of the country adjacent to the Indian Ocean.A number of geological,geochronological and geochemical lines of evidence strongly suggest that the northern Oman ophiolite did not form at a mid-ocean ridge but rather in a supra-subduction zone setting by fast spreading during subduction *** contrast the Masirah ophiolite is structurally part of a series of ophiolite nappes which are rooted in the Indian Ocean *** are significant geochemical differences between the Masirah and northern Oman ophiolites and none of the supra-subduction features typical of the northern Oman ophiolite are found at *** Masirah is MORB,although in detail it contains both enriched and depleted MORB reflecting a complex source for the lavas and *** enrichment of this source predates the formation of the *** condensed crustal section on Masirah(ca.2 km)contains a very thin gabbro sequence and is thought to reflect its genesis from a cool mantle source associated with the early stages of sea-floor spreading during the early separation of eastern and western *** data suggest that the Masirah ophiolite is a suitable analogue for an ophiolite created at a mid-ocean ridge,whereas the northern Oman ophiolite is *** stratigraphic history of the Masirah ophiolite shows that it remained a part of the oceanic crust for ca.80 *** chemical variability and enrichment of the Masirah lavas is similar to that found elsewhere in Indian Ocean basalts and may simply reflect a similar provenance rather than a feature fundamental to the formation of the ophiolite.

关键词： Oman Ophiolite Suprasubduction Sea-floor spreading Masirah

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Liver-directed therapiesfor fibrolamellar carcinoma:Asingle-center experience

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Oncology Research 2024年第12期32卷 1831-1836页

作者： sam son AKSHAAR BRAHMBHATT KEN ZHAO BRETT MARINELLI JAMES HARDING WILLIAM JARNAGIN GHASSAN K.ABOU-ALFA HOOMAN YARMOHAMMADI Department of Radiology Memorial Sloan Kettering Cancer Center and Weill Medical College at Cornell UniversityNew YorkNY 10065USA Department of Medicine Memorial Sloan Kettering Cancer Center and Weill Medical College at Cornell UniversityNew YorkNY 10065USA Division of Hepatobiliary Surgery Department of SurgeryMemorial Sloan Kettering Cancer Center and Weill Medical College at Cornell UniversityNew YorkNY 10065USA

Background:This article aims to present the single-institution outcomes of patients with Fibrolamellar Carcinoma(FLC)treated with liver-directed therapies(LDT).Methods:In this single-center retrospective study,all patients diagnosed with FLC who underwent LDT were identiﬁ*** July 2012 and July 2023,six patients were identiﬁ*** patient was excluded due to *** and clinical parameters were *** within 30 days of the LDT were *** treatment responses at 1,6,and 12 months were assessed per ***:A total ofﬁve patients,which included three females and two males,were *** patients were treated with transarterial hepatic embolization(TAE;n=3),transarterial radioembolization(TARE;n=1),and combined TAE+radiofrequency ablation(n=1).The objective response rate at one month was 80%[CR=2(40%),PR=2(40%),and SD=1(20%)].At 12 months(n=4),two patients demonstrated CR(50%)and two demonstrated PR(50%).Overall survival from LDT atﬁve years was 50%.There was no 30-day mortality among this group of patients or any adverse event attributable to the ***:TAE,TARE,and ablation are safe and effective therapeutic options for *** on this study and previously published case reports,ablation and TARE yielded the most favorable results.

关键词： Fibrolamellar carcinoma(FLC) Hepatocellular carcinoma(HCC) Liver-directed therapy(LDT) Transarterial radioembolization(TARE) Hepatic artery embolization

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Reproductive changes associated with celiac disease

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World Journal of Gastroenterology 2010年第46期16卷 5810-5814页

作者： hugh James Freeman Department of Medicine (Gastroenterology) University of British Columbia Hospital

Celiac disease is a mucosal disorder of the small intestine that may be triggered by dietary exposure to gluten in genetically-susceptible *** disorder is often associated with diarrhea,malabsorption and weight loss along with other extra-intestinal *** changes have been described,including impaired fertility and adverse pregnancy outcomes possibly related to immune-mediated mechanisms or nutrient *** possible pathogenetic factors that may alter placental function include maternal celiac disease autoantibodies binding to placental transglutaminase,and genetic mutations that may facilitate microthrombus *** noting activation during pregnancy or the puerperium may be important,and suggest that celiac disease may also be hypothetically precipitated by maternal exposure to one or more fetal antigens.

关键词： Celiac disease Infertility Pregnancy Post-partum celiac disease Fetal outcome

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Intraductal papillary mucinous neoplasms and other pancreatic cystic lesions

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World Journal of Gastroenterology 2008年第19期14卷 2977-2979页

作者： hugh James Freeman Department of Medicine (Gastroen-terology) University of British Columbia

Pancreatic cystic neoplasms are being increasingly recognized, even in the absence of symptoms, in large part, due to markedly improved imaging modalities such as magnetic resonance imaging (MRI)/magnetic resonance cholangio pancreatography (MRCP) and computer tomography (CT) scanning. During the past 2 decades, better imaging of these cystic lesions has resulted in definition of different types, including pancreatic intraductal papillary mucinous neoplasms (IPMN). While IPMN represent only a distinct minority of all pancreatic cancers, they appear to be a relatively frequent neoplastic form of pancreatic cystic neoplasm. Moreover, IPMN have a much better outcome and prognosis compared to pancreatic ductal adenocarcinomas. Therefore, recognition of this entity is exceedingly important for the clinician involved in diagnosis and further evaluation of a potentially curable form of pancreatic cancer.

关键词： Pancreatic cancer Pancreatic intraductal papillary mucinous neoplasms Mucinous cystic neoplasm of pancreas Serous cystadenoma Pancreatic cysticlesions

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Influence of carbide ceramic reinforcements in improving tribological properties of A333 graded hybrid composites

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Defence Technology（防务技术） 2022年第7期18卷 1107-1123页

作者： Manu sam N.Radhika Department of Mechanical Engineering Amrita School of EngineeringCoimbatore641112Amrita Vishwa VidyapeethamIndia

Aluminium hybrid functionally graded metal matrix composites(FGMMCs),meet growing demands for supreme tribo-mechanical performance in automotive and aviation *** research experimentally compares the influence of carbide ceramics(B_(4)C,SiC,TiC)as reinforcements,in improving reciprocating tribology performance and mechanical strength of A333 hybrid composites against *** cylindrical samples of A333/6 wt%B_(4)C/4 wt%TiC and A333/6 wt%B_(4)C/4 wt%SiC hybrid FGMMCs were developed using horizontal centrifugal *** analysis on both composites revealed increasing ceramic gradient distribution towards outer composite *** rich zone of A333/B_(4)C/SiC hybrid FGMMC showed maximum micro-hardness(198.9 HV)and tensile strength(267.9 MPa).Elemental mapping confirmed effective distribution of ceramics and detected elemental composition of both *** rich layer of A333/B_(4)C/SiC hybrid FGMMC exhibited improved wear resistance in comparison with all three layers of A333/B_(4)C/TiC hybrid FGMMC and ***-body abrasion and tribo-chemical wear were the predominant mechanisms revealed for both composites during worn surface analysis.

关键词： Composites Functional Wear Carbide ceramics

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Spontaneous free perforation of the small intestine in adults

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World Journal of Gastroenterology 2014年第29期20卷 9990-9997页

作者： hugh James Freeman Department of Medicine University of British Columbia

Spontaneous free perforation of the small intestine is uncommon, especially if there is no prior history of visceral trauma. However, free, even recurrent, perforation may complicate a defined and established clinical disorder, such as Crohn’s disease. In addition, free perforation may be the initial clinical presentation of an occult intestinal disorder, such as a lymphoma complicating celiac disease, causing diffuse peritonitis and an acute abdomen. Initial diagnosis of the precise cause may be difficult, but now has been aided by computerized tomographic imaging. The site of perforation may be helpful in defining a cause (e.g., ileal perforation in Crohn’s disease, jejunal perforation in celiac disease, complicated by lymphoma or collagenous sprue). Urgent surgical intervention, however, is usually required for precise diagnosis and treatment. During evaluation, an expanding list of other possible causes should be considered, even after surgery, as subsequent management may be affected. Free perforation may not only complicate an established intestinal disorder, but also a new acute process (e.g., caused by different infectious agents) or a longstanding and unrecognized disorder (e.g., congenital, metabolic and vascular causes). Moreover, new endoscopic therapeutic and medical therapies, including use of emerging novel biological agents, have been complicated by intestinal perforation. Recent studies also support the hypothesis that perforation of the small intestine may be genetically-based with different mutations causing altered connective tissue structure, synthesis and repair.

关键词： Free small bowel perforation Crohn's disease Non-traumatic perforation Celiac disease Small bowel lymphoma Vasculitis Collagenous sprue Biological agents Monoclonal antibodies

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Consensus based on learning game theory with a UAV rendezvous application

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Chinese Journal of Aeronautics 2015年第1期28卷 191-199页

作者： Lin Zhongjie Liu hugh hong-tao University of Toronto Institute for Aerospace Studies 4925 Dufferin StreetToronto Ontario M3H 5T6 Canada

Multi-agent cooperation problems are becoming more and more attractive in both civilian and military applications. In multi-agent cooperation problems, different network topologies will decide different manners of cooperation between agents. A centralized system will directly control the operation of each agent with information flow from a single centre, while in a distributed system, agents operate separately under certain communication protocols. In this paper, a systematic distributed optimization approach will be established based on a learning game *** convergence of the algorithm will be proven under the game theory framework. Two typical consensus problems will be analyzed with the proposed algorithm. The contributions of this work are threefold. First, the designed algorithm inherits the properties in learning game theory for problem simplification and proof of convergence. Second, the behaviour of learning endows the algorithm with robustness and autonomy. Third, with the proposed algorithm, the consensus problems will be analyzed from a novel perspective.

关键词： cooperation consensus robustness autonomy attractive military behaviour contributions proof centralized

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