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Ti_(3)C_(2)T_(x)MXene wrapped,carbon-coated porous Si sheets for improved lithium storage performance

Chinese Chemical Letters 2024年第2期35卷 617-621页

作者： hui Cheng Yueming Liu Zhongling Cheng Xianying Wang Na huang Haijiao Zhang Institute of Nanochemistry and Nanobiology School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China Energy Materials Research Center AG Hydrogen Materials & Devices CAS Key Laboratory of Materials for Energy ConversionShanghai Institute of CeramicsChinese Academy of Sciences (SICCAS)Shanghai 200050China

Si-based materials have shown great potential as lithium-ion batteries(LIBs)anodes due to their natural reserves and high theoretical ***,the large volume changes during cycles and poor conductivity of Si lead to rapid capacity decay and poor cycling stability,ultimately limiting their commercial ***,we have skillfully utilized the microporous MCM-22 zeolite as the unique silicon source to produce porous Si(pSi)sheets by a simple magnesiothermic reduction,followed by a carbon coating and further Ti_(3)C_(2)T_(x)MXene assembly,obtaining the ternary pSi@NC@TNSs *** the design,porous Si sheets provide more active sites and shorten Li-ion transport paths for electrochemical *** N-doped carbon(NC)layer serves as a bonding layer to couple pSi and Ti_(3)C_(2)T_(x).The conductive network formed by 2D Ti_(3)C_(2)T_(x)and medium NC layer effectively enhances the overall charge transport of the electrode material,and helps to stabilize the electrode ***,the as-made pSi@NC@TNSs anode delivers an improved lithium storage performance,exhibiting a high reversible capacity of 925 mAh/g at 0.5 A/g after 100 *** present strategy provides an effective way towards high-performance Si-based anodes for LIBs.

关键词： Si anodes Ti_(3)C_(2)Ti_(x)MXene Porous structure Interfacial assembly Lithium-ion batteries

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Searching for the optimal precondition procedure for mesenchymal stem/stromal cell treatment:Facts and perspectives

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World Journal of Stem Cells 2024年第6期16卷 615-618页

作者： Yu-Dong Zhao yong-Can huang Wei-Shi Li Department of Orthopedic Peking University Third HospitalBeijing 100191China Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies Orthopaedic Research CenterPeking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina

Mesenchymal stem/stromal cells are potential optimal cell sources for stem cell therapies,and pretreatment has proven to enhance cell vitality and *** a recent publication,Li et al explored a new combination of pretreatment ***,we present an editorial to comment on their work and provide our view on mesenchymal stem/stromal cell precondition.

关键词： Mesenchymal stem cell Precondition Hypoxia Inflammation

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Structure Characterization and Performance Estimate for Thermal Solidified RDX Explosive by μCT

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含能材料 2009年第4期17卷 499-500页

作者： ZHANG Wei-bin huang hui TIAN yong ZONG He-hou DAI Bin GUAN Li-feng Institute of Chemical Materials CAEP Mianyang 621900 China

The inner structure characteristic of RDX base explosive has been studied by Μct technology before and after fully thermal solidification.

关键词：建筑材料含能材料估计 RDX

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Monomeric and self-assembled crystal phases of TNBT

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Rare Metals 2024年第10期43卷 5442-5448页

作者： Yun-hui Wu Hua-Bei You Wei-Kai Cui Zhi-Qian Cao Xiao Dong Zi-hui Meng Ming huang School of Chemistry and Chemical Engineering Beijing Institute of Technology Institute of Chemical Materials China Academy of Engineering Physics

（3,3′,5,5′-Tetranitro-4,4′-bi-1,2,4-Triazole） TNBT was designed and predicted more than three decades ago as a high energy *** with many other designed molecules,TNBT has not been successfully synthesized and has not been computationally studied in *** this work,theoretical calculations at density functional theory （DFT）level of theory were carried out for both the gas phase molecule and its possible bulk crystal *** （DFT） computations show that TNBT is comparable to CL-20 with high bulk density,

关键词： Density functional theory

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Microstructure and room temperature fracture toughness of Nb-Si-based alloys with Sr addition

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Rare Metals 2024年第8期43卷 3904-3912页

作者： yong-Lin huang Li-Na Jia Bin Kong Yue-Ling Guo Na Wang School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Nb-Si-based alloys show great potential to surpass the widely used Ni-based *** element Sr is widely applied in aluminum and magnesium alloys,but reports about the effects of Sr on Nb-Si-based alloys are quite ***,Nb-Si-based alloys with nominal compositions of Nb-15Si-24Ti-4Cr-2Al-2Hf-0/0.05/0.15Sr(at%)were prepared by directional solidification and heat *** microstructural characterization and room temperature fracture toughness of Nb-Si-based alloy were systematically *** show that all these alloys consist of Nb_5Si_3 phase embedded within Nb solid solution(Nb_(ss)) *** Nb_(5)Si_(3) phase becomes refined and more discontinuous after adding minor *** for the fracture toughness,0.05 at% and 0.15 at% Sr additions do not cause significant *** discontinuous and refining mechanism of Sr element was studied,and the analysis of toughness decreasing with Sr addition reveals that the size of Nb_(ss) phase plays a crucial role in determining the fracture toughness.

关键词： Nb-Si alloy Refinement Discontinuous Fracture toughness Nb_(ss)

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SH2B1 Tunes Hippocampal ERK Signaling to Influence Fluid Intelligence in Humans and Mice

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Research 2024年第3期2023卷 369-389页

作者： Xiujuan Du Yuhua Yan Juehua Yu Tailin Zhu Chu-Chung huang Lingli Zhang Xingyue Shan Ren Li Yuan Dai hui LV Xiao-yong Zhang Jianfeng Feng Wei-Guang Li Qiang Luo Fei Li Developmental and Behavioral Pediatric Department Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and Ministry of Education-Shanghai Key Laboratory for Children's Environmental HealthXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Developmental and Behavioral Pediatric Department Shanghai Xinhua Children's HospitalShanghai 200092China National Clinical Research Center for Aging and Medicine at Huashan Hospital Institute of Science and Technology for Brain-lnspired IntelligenceMinistry of Education-Key Laboratory of Computational Neuroscience and Brain-lnspired IntelligenceFudan UniversityShanghai 200433China State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science Institutes of Brain Science and Human Phenom InstituteFudan UniversityShanghai 200032China Shanghai Key Laboratory of Brain Functional Genomics(Ministry of Education) School of Life SciencesEast China Normal UniversityShanghai 200062China Department of Rehabilitation Medicine Huashan HospitalInstitute for Translational Brain ResearchState Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain ScienceFudan UniversityShanghai 200032China Center for Experimental Studies and Research The First Affliated Hospital of Kunming Medical UniversityKunming 650032China Shanghai Research Center for Brain Science and Brain-lnspired Intelligence Shanghai201210China Institute of Cognitive Neuroscience School of Psychology and Cognitive ScienceEast China Normal UniversityShanghai 200062China.

Fluid intelligence is a cognitive domain that encompasses general reasoning, pattern recognition, and problem-solving abilities independent of task-specific experience. Understanding its genetic and neural underpinnings is critical yet challenging for predicting human development, lifelong health, and well-being. One approach to address this challenge is to map the network of correlations between intelligence and other constructs. In the current study, we performed a genome-wide association study using fluid intelligence quotient scores from the UK Biobank to explore the genetic architecture of the associations between obesity risk and fluid intelligence. Our results revealed novel common genetic loci (SH2B1, TUFM, ATP2A1, and FOXO3) underlying the association between fluid intelligence and body metabolism. Surprisingly, we demonstrated that SH2B1 variation influenced fluid intelligence independently of its effects on metabolism but partially mediated its association with bilateral hippocampal volume. Consistently, selective genetic ablation of Sh2b1 in the mouse hippocampus, particularly in inhibitory neurons, but not in excitatory neurons, significantly impaired working memory, short-term novel object recognition memory, and behavioral flexibility, but not spatial learning and memory, mirroring the human intellectual performance. Single-cell genetic profiling of Sh2B1-regulated molecular pathways revealed that Sh2b1 deletion resulted in aberrantly enhanced extracellular signal-regulated kinase (ERK) signaling, whereas pharmacological inhibition of ERK signaling reversed the associated behavioral impairment. Our cross-species study thus provides unprecedented insight into the role of SH2B1 in fluid intelligence and has implications for understanding the genetic and neural underpinnings of lifelong mental health and well-being.

关键词： metabolism impaired reversed

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Supramolecular polymer-based gel fracturing fluid with a double network applied in ultra-deep hydraulic fracturing

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Petroleum Science 2024年第3期21卷 1875-1888页

作者： yong-Ping huang yong Hu Chang-Long Liu Yi-Ning Wu Chen-Wei Zou Li-Yuan Zhang Ming-Wei Zhao Cai-Li Dai School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPR China Shandong Key Laboratory of Oilfield Chemistry China University of Petroleum(East China)Qingdao 266580ShandongPR China SINOPEC Petroleum Exploration and Production Research Institute Beijing102206PR China CNOOC China Co Ltd Tianjin BranchTianjin300459PR China

A gel based on polyacrylamide,exhibiting delayed crosslinking characteristics,emerges as the preferred solution for mitigating degradation under conditions of high temperature and extended shear in ultralong *** viscosity/viscoelasticity of the fracturing fluid was required to maintain excellent proppant suspension properties before *** into account both the cost and the potential damage to reservoirs,polymers with lower concentrations and molecular weights are generally *** this work,the supramolecular action was integrated into the polymer,resulting in significant increases in the viscosity and viscoelasticity of the synthesized supramolecular polymer *** double network gel,which is formed by the combination of the supramolecular polymer system and a small quantity of Zr-crosslinker,effectively resists temperature while minimizing permeability damage to the *** results indicate that the supramolecular polymer system with a molecular weight of(268—380)×10^(4)g/mol can achieve the same viscosity and viscoelasticity at 0.4 wt%due to the supramolecular interaction between polymers,compared to the 0.6 wt%traditional polymer(hydrolyzed polyacrylamide,molecular weight of 1078×10^(4)g/mol).The supramolecular polymer system possessed excellent proppant suspension properties with a 0.55 cm/min sedimentation rate at 0.4 wt%,whereas the0.6 wt%traditional polymer had a rate of 0.57 cm/*** comparison to the traditional gel with a Zrcrosslinker concentration of 0.6 wt%and an elastic modulus of 7.77 Pa,the double network gel with a higher elastic modulus(9.00 Pa)could be formed only at 0.1 wt%Zr-crosslinker,which greatly reduced the amount of residue of the fluid after *** viscosity of the double network gel was66 m Pa s after 2 h shearing,whereas the traditional gel only reached 27 m Pa s.

关键词： Ultra-deep reservoir Gel fracturing fluid Double network Supramolecular polymer system Proppant suspension property

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横向互击型层板喷注器的喷雾特性

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推进技术 2003年第1期24卷 47-50,86页

作者：曹永郭志辉黄勇北京航空航天大学动力系北京100083

利用激光粒子动态分析仪 (PDA)对 180°互击型层板式喷注器的喷雾特性进行了试验研究 ,测量了喷雾典型区域的液滴速度、直径、体积通量密度等参数。分析了喷注器的雾化过程和喷雾特点 ,同时重点研究了喷口槽宽、推进剂流道面积比以及推... 详细信息

利用激光粒子动态分析仪 (PDA)对 180°互击型层板式喷注器的喷雾特性进行了试验研究 ,测量了喷雾典型区域的液滴速度、直径、体积通量密度等参数。分析了喷注器的雾化过程和喷雾特点 ,同时重点研究了喷口槽宽、推进剂流道面积比以及推进剂喷注速度比等参数对喷雾特性的影响。试验结果表明 :喷雾沿喷口展向可分为三个明显区域 ,中间区域流量较小但雾化较细 ,从槽两端喷出的液雾流量较大但液滴尺寸较大。对于一定的流道截面比γd 和喷注速度比γv,存在一个最佳的喷嘴槽宽w使雾化质量最优。同时 ,在喷嘴槽宽合适时 ,流道截面比γd 和喷注速度比γv

关键词：层板喷注器撞击式喷嘴喷雾推进剂雾化通量密度航天发动机

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Development and validation of a new prognostic model for patients with acute-on-chronic liver failure in intensive care unit

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World Journal of Gastroenterology 2024年第20期30卷 2657-2676页

作者： Zong-Yi Zhu Xiu-Hong huang hui-Qing Jiang Li Liu Department of Gastroenterology The Second Hospital of Hebei Medical UniversityShijiazhuang 050000Hebei ProvinceChina Department of Gastroenterology Weixian People's HospitalXingtai 054700Hebei ProvinceChina

BACKGROUND Cirrhotic patients with acute-on-chronic liver failure(ACLF)in the intensive care unit(ICU)have a poor but variable *** prognosis evaluation can guide the rational management of patients with ***,existing prognostic scores for ACLF in the ICU environment lack sufficient *** To develop a new prognostic model for patients with ACLF in *** Data from 938 ACLF patients in the Medical Information Mart for Intensive Care(MIMIC)database were used to develop a new prognostic model(MIMIC ACLF)for ***,calibration and clinical utility of MIMIC ACLF were assessed by area under receiver operating characteristic curve(AUROC),calibration curve and decision curve analysis(DCA),*** ACLF was then externally validated in a multiple-center cohort,the Electronic Intensive Care Collaborative Research Database and a single-center cohort from the Second Hospital of Hebei Medical University in *** The MIMIC ACLF score was determined using nine variables:ln(age)×2.2+ln(white blood cell count)×0.22-ln(mean arterial pressure)×2.7+respiratory failure×0.6+renal failure×0.51+cerebral failure×0.31+ln(total bilirubin)×0.44+ln(internationalized normal ratio)×0.59+ln(serum potassium)×*** MIMIC cohort,the AUROC(0.81/0.79)for MIMIC ACLF for 28/90-day ACLF mortality were significantly greater than those of Chronic Liver Failure Consortium ACLF(0.76/0.74),Model for End-stage Liver Disease(MELD;0.73/0.71)and MELD-Na(0.72/0.70)(all P<0.001).The consistency between actual and predicted 28/90-day survival rates of patients according to MIMIC ACLF score was excellent and superior to that of existing *** net benefit of MIMIC ACLF was greater than that achieved using existing scores within the 50%threshold *** superior predictive accuracy and clinical utility of MIMIC ACLF were validated in the external *** We developed and validated a new prognostic model with satisfactory accuracy

关键词： Acute-on-chronic liver failure Cirrhosis Risk stratification Prognosis Model Scores

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Preparation of norovirus GII loop mediated isothermal amplification freeze-drying microsphere reagents and its application in an on-site integrated rapid detection platform

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Chinese Chemical Letters 2024年第9期35卷 262-265页

作者： Yanqi Wu Yuhong Guan Peilin huang hui Chen Liping Bai Zhihong Jiang State Key Laboratory of Quality Research in Chinese Medicine Macao University of Science and TechnologyMacao 999078China Shenzhen LemnisCare Medical Technology Co. Ltd.Shenzhen 518107China Hunan Key Laboratory of Biomedical Nanomaterials and Devices Hunan University of TechnologyZhuzhou 412077China

Norovirus is an infectious disease that can cause non-bacterial gastroenteritis,which has a low infectious dose,rapid onset,and strong transmission ability;therefore,rapid and sensitive detection is essential to reduce the transmission of *** the study,a norovirus GII loop-mediated isothermal amplification assay was developed and prepared into freeze-drying microspheres,and a closed-cassette-based,integrated,reagent-ambient storage,on-site instant detection platform for norovirus GII was constructed using a commercial,fully automated nucleic acid analyzer with integrated magnetic bearing based nuclear acid extraction and nucleic acid detection,with a sensitivity of 10 copies/μL,with no cross-reactivity with other 5 *** 28 simulated samples,the integrated assay platform was consistent with the experimental results of reverse transcription-quantitative polymerase chain reaction(RT-qPCR)assays after conventional laboratory nucleic acid *** entire process can be finished in about 1 h,which is ideal for immediate rapid detection.

关键词： Freeze-dried microspheres Point-of-care testing Loop-mediated isothermal amplification Norovirus GII Integrated testing

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