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“Zero‑Strain” ninb_(2)O_(6) Fibers for All‑Climate Lithium Storage

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nano-Micro Letters 2025年第1期17卷 348-360页

作者： Yan Zhao Qiang Yuan Liting Yang guisheng Liang Yifeng cheng Limin Wu Chunfu Lin Renchao che College of Physics Donghua UniversityShanghai 201620People’s Republic of China School of Materials Science and Engineering Institute of Materials for Energy and EnvironmentQingdao UniversityQingdao 266071People’s Republic of China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

niobates are promising all-climate Li^(+)-storage anode material due to their fast charge transport,large specific capacities,and resistance to electrolyte ***,their moderate unit-cellvolume expansion(generally 5%–10%)during Li^(+)storage causes unsatisfactory long-term ***,“zero-strain”ninb_(2)O_(6) fibers are explored as a new anode material with comprehensively good electrochemical *** Li^(+)storage,the expansion of electrochemical inactive niO_(6) octahedra almost fully offsets the shrinkage of active nbO_(6) octahedra through reversible O *** superior volume-accommodation capability of the niO_(6) layers guarantees the“zero-strain”behavior of ninb_(2)O_(6) in a broad temperature range(0.53%//0.51%//0.74%at 25//−10//60℃),leading to the excellent cyclability of the ninb_(2)O_(6) fibers(92.8%//99.2%//91.1%capacity retention after 1000//2000//1000 cycles at 10C and 25//−10//60℃).This ninb_(2)O_(6) material further exhibits a large reversible capacity(300//184//318 mAh g−1 at 0.1C and 25//−10//60℃)and outstanding rate performance(10 to 0.5C capacity percentage of 64.3%//50.0%//65.4%at 25//−10//60℃).Therefore,the ninb_(2)O_(6) fibers are especially suitable for large-capacity,fast-charging,long-life,and all-climate lithium-ion batteries.

关键词： ninb_(2)O_(6)porous fiber “Zero-strain”mechanism Electrochemical property Harsh-temperature operation Operando characterization

Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑Thin Electromagnetic Wave Absorber

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nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu Xiao Shangru Zhai Chuang Xue guangping Zheng Deqing Zhang Renchao che Junye cheng Liaoning Key Lab of Lignocellulose chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

Silk-based nerve guidance conduits with macroscopic holes modulate the vascularization of regenerating rat sciatic nerve

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neural Regeneration Research 2025年第6期20卷 1789-1800页

作者： Carina Hromada Patrick Heimel Markus Kerbl Lászlógál Sylvia nürnberger Barbara Schaedl James Ferguson nicole Swiadek Xavier Monforte Johannes C.Heinzel Antal nógrádi Andreas H.Teuschl-Woller David Hercher Department Life Science Engineering University of Applied Sciences Technikum WienViennaAustria Austrian Cluster for Tissue Regeneration ViennaAustria Ludwig Boltzmann Institute for Traumatology The Research Center in Cooperation with AUVAViennaAustria University Clinic of Dentistry Medical University of ViennaViennaAustria Department of Plastic Reconstructive and Aesthetic SurgeryLandesklinikum Wiener Neustadt2700 Wiener NeustadtAustria Department of Anatomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary Medical University of Vienna Department of Orthopedics and Trauma SurgeryDevision of Trauma SurgeryViennaAustria Department of Hand- PlasticReconstructive and Burn SurgeryBG Unfallklinik TuebingenUniversity of TuebingenTuebingenGermany

Peripheral nerve injuries induce a severe motor and sensory deficit. Since the availability of autologous nerve transplants for nerve repair is very limited, alternative treatment strategies are sought, including the use of tubular nerve guidance conduits(tngCs). However, the use of tngCs results in poor functional recovery and central necrosis of the regenerating tissue, which limits their application to short nerve lesion defects(typically shorter than 3 cm). given the importance of vascularization in nerve regeneration, we hypothesized that enabling the growth of blood vessels from the surrounding tissue into the regenerating nerve within the tngC would help eliminate necrotic processes and lead to improved regeneration. In this study, we reported the application of macroscopic holes into the tubular walls of silk-based tngCs and compared the various features of these improved silk^(+) tngCs with the tubes without holes(silk^(–) tngCs) and autologous nerve transplants in an 8-mm sciatic nerve defect in rats. Using a combination of micro-computed tomography and histological analyses, we were able to prove that the use of silk^(+) tngCs induced the growth of blood vessels from the adjacent tissue to the intraluminal neovascular formation. A significantly higher number of blood vessels in the silk^(+) group was found compared with autologous nerve transplants and silk^(–), accompanied by improved axon regeneration at the distal coaptation point compared with the silk^(–) tngCs at 7 weeks postoperatively. In the 15-mm(critical size) sciatic nerve defect model, we again observed a distinct ingrowth of blood vessels through the tubular walls of silk^(+) tngCs, but without improved functional recovery at 12 weeks postoperatively. Our data proves that macroporous tngCs increase the vascular supply of regenerating nerves and facilitate improved axonal regeneration in a short-defect model but not in a critical-size defect model. This study suggests that further optimizatio

关键词： axon regeneration blood vessel functional recovery macroporous nerve lesion peripheral nerve repair sciatic nerve silk-based nerve guidance conduit vascularization

Vagus nerve stimulation in intracerebral hemorrhage:the need for further research

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neural Regeneration Research 2025年第11期20卷 3213-3214页

作者： Sheharyar S.Baig Ali n.Ali Arshad Majid Sheffield Institute for Translational neuroscience Division of NeuroscienceThe University of SheffieldSheffieldUK

Vagus nerve stimulation(VnS)and stroke:Stroke is the second leading cause of death and the third leading cause of disability worldwide(Baig et al.,2023).There have been significant paradigm shifts in the management of acute ischemic stroke through mechanical *** chronic ischemic stroke,invasive VnS paired with rehabilitation is associated with a significant increase in upper limb motor recovery and is FDA-approved(Baig et al.,2023).There are no treatments of similar efficacy in acute intracerebral hemorrhage(ICH)where several promising trials,e.g.,TICH-2,STOP-AUST,and TRAIgE did not show improvements in functional outcomes(Puy et al.,2023).

关键词： stimulation acute

Identification of SnP-containing regulatory motifs in the myelodysplastic syndromes model using SnP arrays and gene expression arrays

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Chinese Journal of Cancer 2013年第4期32卷 170-185页

作者： Jing Fan Jennifer g. Dy Chung-che Chang Xiaobo Zhou Department of Electrical and Computer Engineering Northeastern University Department of Pathology Florida Hospital University of Central Florida Department of Radiology The Methodist Hospital Research Institute Weill Medical College & Cornell University

Myelodysplastic syndromes have increased in frequency and incidence in the American population, but patient prognosis has not significantly improved over the last decade. Such improvements could be realized if biomarkers for accurate diagnosis and prognostic stratification were successfully identified. In this study, we propose a method that associates two state-of-the-art array technologies-single nucleotide polymorphism (SnP) array and gene expression array-with gene motifs considered transcription factor -binding sites (TFBS). We are particularly interested in SnP-containing motifs introduced by genetic variation and mutation as TFBS. The potential regulation of SnP-containing motifs affects only when certain mutations occur. These motifs can be identified from a group of co-expressed genes with copy number variation. Then, we used a sliding window to identify motif candidates near SnPs on gene sequences. The candidates were filtered by coarse thresholding and fine statistical testing. Using the regression-based LARS-En algorithm and a level-wise sequence combination procedure, we identified 28 SnP-containing motifs as candidate TFBS. We confirmed 21 of the 28 motifs with ChIP-chip fragments in the TRAnSFAC database. Another six motifs were validated by TRAnSFAC via searching binding fragments on coregulated genes. The identified motifs and their location genes can be considered potential biomarkers for myelodysplastic syndromes. Thus, our proposed method, a novel strategy for associating two data categories, is capable of integrating information from different sources to identify reliable candidate regulatory SnP-containing motifs introduced by genetic variation and mutation.

关键词： Association study, genetic variation and mutation, transcription factor-binding sites, myelodysplastic syndromes

DIVERSITY OF EPHEMEROPTERA,PLECOPTERA AnD TRICHOPTERA In VARIOUS TRIBUTARIES OF TEMEnggOR CATCHMEnT,PERAK,MALAYSIA

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湿地科学 2007年第1期5卷 20-31页

作者： che Salmah M R Abu Hassan A Jongkar g School of Biological Sciences University Sains Malaysia11800 MindenPulau PinangMalaysia

A rich fauna of Ephemeroptera(mayfly),Plecoptera(stonefly) and Trichoptera(caddisfly)(EPT) were collected from 14 highland streams discharging into the Temenggor Reservoir in Perak in the northern peninsular *** of the 3 orders,Ephemeroptera was the most diverse but Trichoptera was the most abundant.45 genera that belonged to 25 families of EPT were *** of EPT varied significantly between orders and types of streams they *** diversity and abundance were higher in the second and third order *** was no significant relationship between environmental parameters and diversity as well as abundance of EPT in these *** diversity indices together with EPT taxa richness scores referred to clean water environment,hence very suitable for these *** EPT taxa richness calculated for the 14 streams reflected that 13 out of 14 streams were undisturbed having good water quality(value of EPT taxa richness > 10).Previous logging and mining activities were suspected to be the main cause for tremendous disappearance of EPT genera in the Kelian *** no previous human activities were recorded around the Telang stream,natural phenomena possibly contributed to low abundance of these insects in the Telang stream.

关键词：襀翅目蜉蝣目毛翅目马来群岛丰度生物多样性湿地溪流昆虫

Arsenate biotransformation by Microcystis aeruginosa under different nitrogen and phosphorus levels

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Journal of Environmental Sciences 2018年第4期30卷 41-49页

作者： Feifei che Miaomiao Du Changzhou Yan Key Laboratory of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences

The arsenate（As（V）） biotransformation by Microcystis aeruginosa in a medium with different concentrations of nitrogen（n） and phosphorus（P） has been studied under laboratory conditions. When 15 μg/L As（V） was added, n and P in the medium showed effective regulation on arsenic（As） metabolism in M. aeruginosa, resulting in significant differences in the algal growth among different n and P treatments. Under 0.2 mg/L P treatment, increases in n concentration（4–20 mg/L） significantly stimulated the cell growth and therefore indirectly enhanced the production of dimethylarsinic acid（DMA）, the main As metabolite, accounting for 71%–79% of the total As in the medium. Meanwhile, 10–20 mg/L n treatments accelerated the ability of As metabolization by M. aeruginosa, leading to higher contents of DMA per ***, As（V） uptake by M. aeruginosa was significantly impeded by 0.5–1.0 mg/L P treatment,resulting in smaller rates of As transformation in M. aeruginosa as well as lower contents of As metabolites in the medium. Our data demonstrated that As（V） transformation by M. aeruginosa was significantly accelerated by increasing n levels, while it was inhibited by increasing P levels. Overall, both P and n play key roles in As（V） biotransformation processes.

关键词： Arsenate Biotransformation nitrogen Phosphorus M.aeruginosa

Coupling Effects of A Deep-Water Drilling Riser and the Platform and the Discharging Fluid Column in An Emergency Disconnect Scenario

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China Ocean Engineering 2020年第1期34卷 21-29页

作者： MEng Shuai chen Yong che Chi-dong State Key Laboratory of Ocean Engineering Collaborative Innovation Center for Advanced Ship and Deep-sea ExplorationShanghai Jiao Tong UniversityShanghai 200240China Shanghai Marine Diesel Engine Research Institute Shanghai 200240China

As drilling operations move into remote locations and extreme water depths, recoil analysis requires more careful considerations and the incidence of emergency disconnect is increased inevitably. To accurately capture the recoil dynamics of a deep-water riser in an emergency disconnect scenario, researchers typically focus on modelling the influential subsystems (e.g., the tensioner, the mud discharge and seawater refilling process) which can be solved in the preprocessing, and then the determined parameters are transmitted into an existing global riser analysis software. Distinctively, the current study devotes efforts into the coupling effects resulting from that the suspended riser reacts the platform heave motion via the tensioner system in the course of recoil and the discharging fluid column follows the oscillation of the riser in the mud discharge process. Four simulation models are established based on lumped mass method employing different formulas for the top boundary condition of the riser and the discharging flow acceleration. It demonstrates that the coupling effects discussed above can significantly affect the recoil behavior during the transition phase from initial disconnect to the final hang-off state. It is recommended to develop a fully- coupled integrated model for recoil analysis and anti-recoil control system design before extreme deep-water applications.

关键词： recoil analysis emergency disconnect coupling effect platform excitation

a-Si/c-Si heterojunction solar cells on SiSiC ceramic substrates

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Rare Metals 2006年第Z1期25卷 186-189页

作者： LI Xudong XU Ying che Xiaoqi Beijing Solar Energy Research Institute Beijing 100083 China Beijing Solar Energy Research Institute Beijing 100083 China Beijing Solar Energy Research Institute Beijing 100083 China

Silicon thin-film solar cells are considered to be one of the most promising cells in the future for their potential advantages, such as low cost, high efficiency, great stability, simple processing, and none-pollution. In this paper, latest progress on poly-crystalline silicon solar cells on ceramic substrates achieved by our group was reported. Rapid thermal chemical vapor deposition (RTCVD) was used to deposited poly-crystalline silicon thin films, and the grains of as-grown film were enlarged by Zone-melting Recrystallization (ZMR). As a great change in cell′s structure, traditional diffused pn homojunction was replaced by a-Si/c-Si heterojunction, which lead is to distinct improvement in cell′s efficiency. A conversion efficiency of 3.42% has been achieved on 1 cm2 a-Si/c-Si heterojunction solar cell (Isc=16.93 mA, Voc=310.9 mV, FF=0.6493, AM=1.5 g, 24 ℃), while the cell with diffused homojunction only got an efficiency of 0.6%. It indicates that a-Si emitter formed at low temperature might be more suitable for thin film cell on ceramics.

关键词： a-Si/c-Si heterojunction thin film solar cell ceramic substrate