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Reconfigurable logic and in-sensor encryption operations in an asymmetrically tunable van der Waals heterostructure

Nano Research 2024年第4期17卷 3113-3119页

作者： Fan Gong Wenjie Deng yi Wu Fengming Liu yihao Guo Zelin che Jingjie Li Jingzhen Li Yang Chai Yongzhe Zhang Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Department of Applied Physics Hong Kong Polytechnic UniversityKowloonHong KongChina

Reconfigurable devices can be used to achieve multiple logic operation and intelligent optical sensing with low power consumption,which is promising candidates for new generation electronic and optoelectronic integrated ***,the versatility is still limited and need to be extended by the device architectures ***,we report an asymmetrically gate two-dimensional(2D)van der Waals heterostructure with hybrid dielectric layer SiO_(2)/hexagonal boron nitride(h-BN),which enable rich function including reconfigurable logic operation and in-sensor information encryption enabled by both volatile and non-volatile optoelectrical *** the partial gate is grounded,the non-volatile light assisted electrostatic doping endowed partially reconfigurable doping between n-type and p-type,which allow the switching of logic XOR and not implication(NIMP).When the global gate is grounded,additionally taking the optical signal as another input signal,logic AND and OR is realized by combined regulation of the light and localized gate *** on the high on/off current ratio approaching 105 and reliable&switchable logic gate,in-sensor information encryption and decryption is demonstrated by manipulating the logic ***,these results provide strong extension for current reconfigurable electronic and optoelectronic devices.

关键词： in-sensor encryption reconfigurable logic van der Waals heterostructure asymmetrical tunable architecture

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试论幼儿园美术活动的游戏化

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学前教育研究 2001年第2期 30-31页

作者：车艺华东师范大学学前教育系 200062

今天，已有越来越多的人认识到游戏对于学龄前儿童发展的价值。游戏不仅被认为是全世界学前儿童应享受的生活权利的一部分，其中所蕴涵的教育契机更是日益受到各国学前教育机构的重视。我国的《幼儿园工作规程》中就已明确提出“游戏是... 详细信息

今天，已有越来越多的人认识到游戏对于学龄前儿童发展的价值。游戏不仅被认为是全世界学前儿童应享受的生活权利的一部分，其中所蕴涵的教育契机更是日益受到各国学前教育机构的重视。我国的《幼儿园工作规程》中就已明确提出“游戏是幼儿园的基本活动”。但是重视其作用、提高其地位的同时，由于游戏这一社会现象本身的复杂性，多样性和大众化，我们对“游戏”本质特征的认识尚不够明晰，研究也难深入。因此在判断某项幼儿园活动是否是游戏时，不同的人往往有不同的结论。以幼儿园中儿童的美术活动为例，孩子们的涂鸦或者绘画从本质上来讲是不是一种游戏行为？是或否的认识将在何种程度上影响幼儿园教师对美术活动的指导？在此，美术活动游戏化的可能以及实施过程中应注意的问题正是笔者关注的焦点。希望本文不仅在一定程度上作出理论的梳理和澄清，并且能让第一线的幼儿教师们从中得到一些美术活动有关的启发。

关键词：幼儿园幼儿教育美术活动教师评价游戏化学前教育选材

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A Post-Quantum Cross-Domain Authentication Scheme Based on Multi-Chain Architecture

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Computers, Materials & Continua 2024年第2期78卷 2813-2827页

作者： yi-Bo Cao Xiu-Bo chen Yun-Feng He Lu-Xi Liu yin-Mei che Xiao Wang Ke Xiao Gang Xu Si-yi chen Information Security Center State Key Laboratory ofNetworking and Switching TechnologyBeijing University of Posts and TelecommunicationsBeijing100876China Information Center of China North Industries Group Corporation Beijing100089China School of Information Science and Technology North China University of TechnologyBeijing100144China

Due to the rapid advancements in network technology,blockchain is being employed for distributed data *** the Internet of Things(IoT)scenario,different participants manage multiple blockchains located in different trust domains,which has resulted in the extensive development of cross-domain authentication ***,the emergence of many attackers equipped with quantum computers has the potential to launch quantum computing attacks against cross-domain authentication schemes based on traditional cryptography,posing a significant security *** response to the aforementioned challenges,our paper demonstrates a post-quantum cross-domain identity authentication scheme to negotiate the session key used in the cross-chain asset exchange ***,our paper designs the hiding and recovery process of user identity index based on lattice cryptography and introduces the identity-based signature from lattice to construct a post-quantum cross-domain authentication ***,our paper utilizes the hashed time-locked contract to achieves the cross-chain asset exchange of blockchain nodes in different trust ***,the security analysis reduces the security of the identity index and signature to Learning With Errors(LWE)and Short Integer Solution(SIS)assumption,respectively,indicating that our scheme has post-quantum *** but not least,through comparison analysis,we display that our scheme is efficient compared with the cross-domain authentication scheme based on traditional cryptography.

关键词： Cross-domain identity authentication lattice-based cryptography blockchain hashed time-locked contract

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From VIB‑to VB‑Group Transition Metal Disulfides:Structure Engineering Modulation for Superior Electromagnetic Wave Absorption

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Nano-Micro Letters 2024年第2期16卷 218-257页

作者： Junye cheng Yongheng Jin Jinghan Zhao Qi Jing Bailong Gu Jialiang Wei Shenghui yi Mingming Li Wanli Nie Qinghua Qin Deqing Zhang Guangping Zheng Renchao che Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong KongPeople’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China

The laminated transition metal disulfides(TMDs),which are well known as typical two-dimensional(2D)semiconductive materials,possess a unique layered structure,leading to their wide-spread applications in various fields,such as catalysis,energy storage,sensing,*** recent years,a lot of research work on TMDs based functional materials in the fields of electromagnetic wave absorption(EMA)has been carried ***,it is of great significance to elaborate the influence of TMDs on EMA in time to speed up the *** this review,recent advances in the development of electromagnetic wave(EMW)absorbers based on TMDs,ranging from the VIB group to the VB group are *** compositions,microstructures,electronic properties,and synthesis methods are presented in ***,the modulation of structure engineering from the aspects of heterostructures,defects,morphologies and phases are systematically summarized,focusing on optimizing impedance matching and increasing dielectric and magnetic losses in the EMA materials with tunable EMW absorption *** as well as the challenges are also identified to guide the design of new TMDs based dielectric EMA materials with high performance.

关键词： Transition metal disulfides Electromagnetic wave absorption Impedance matching Structure engineering modulation

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A single center analysis of long-term outcomes and survival related risk factors in liver retransplantation

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 425-443,I0011页

作者： Zhihao Li yi Ping Sng Chao-Long chen Chih-che Lin Shih-Ho Wang chee-Chien Yong Liver Transplantation Center and Department of Surgery Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of MedicineKaohsiung

Background:Liver retransplant is the only option to save a patient with liver graft ***,it is controversial due to its poor survival outcome compared to primary *** deceased organ donation in Taiwan leads to high waitlist ***,living-donor grafts offer a valuable alternative for *** study aims to analyze the single center’s outcome in living donor liver retransplantation(re-LDLT)and deceased donor liver retransplantation(re-DDLT)as well as the survival related confounding risk ***:This is a single center retrospective study including 32 adults who underwent liver retransplantation(re-LT)from June 2002 to April *** cohort was divided into a re-LDLT and a re-DDLT group and survival outcomes were *** outcomes over different periods,the effect of timing on survival,and multivariate analysis for risk factors were also demonstrated Results:Of the 32 retransplantations,the re-LDLT group(n=11)received grafts from younger donors(31.3 vs.43.75 years,P=0.016),with lower graft weights(688 vs.1,457.2 g,Pchemia time(CIT)(45 vs.313 min,Pchemia time(WIT)and intraoperative blood transfusion were related to poor long-term ***:Retransplantation with living donor graft demonstrated good long-term outcomes with acceptable complications to both recipient and *** may serve as a choice in areas lacking deceased *** timing of retransplantation did not affect the long-term *** effort should be made to reduce WIT and massive blood transfusion as they contributed to poor survi

关键词： Retransplantation living donor liver retransplantation(re-LDLT) deceased donor liver retransplantation(re-DDLT) timing of retransplantation long-term outcome

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无腹筋钢筋混凝土受弯构件基于修正压力场理论的受剪计算

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建筑结构学报 2010年第8期31卷 79-85页

作者：魏巍巍贡金鑫车轶大连理工大学建设工程学部辽宁大连116024

为解释无腹筋钢筋混凝土受弯构件的受剪破坏机理,并反映尺寸效应对无腹筋受弯构件受剪强度的影响,在修正压力场理论基础上,对钢筋混凝土构件受剪破坏做了进一步研究,提出沿受弯构件斜裂缝表面平均剪应力的计算公式,并考虑混凝土构件的... 详细信息

为解释无腹筋钢筋混凝土受弯构件的受剪破坏机理,并反映尺寸效应对无腹筋受弯构件受剪强度的影响,在修正压力场理论基础上,对钢筋混凝土构件受剪破坏做了进一步研究,提出沿受弯构件斜裂缝表面平均剪应力的计算公式,并考虑混凝土构件的尺寸效应提出抗剪强度简化计算公式。与国内外无腹筋梁的512个试验结果比较表明,采用提出的斜裂缝表面平均剪应力公式按修正压力场理论计算的受剪承载力及按文中简化公式计算的受剪承载力与试验结果比值的变异性很小,可用于无腹筋钢筋混凝土梁的受剪分析和设计。

关键词：钢筋混凝土构件抗剪强度修正压力场理论尺寸效应

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Facile Synthesis of Layered Sodium Manganese Oxide for Application in Asymmetric Supercapacitor

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Chinese Journal of Structural chemistry 2020年第4期39卷 756-764页

作者： LIU Xu TENG Teng GU Lei-Xiang GE Li-Chao HE Wen LIAO Hui-Yong che yi-Jun LIANG Chong-Yao DAN Yuan-Yuan cheN Li-Zhuang School of Environmental and chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Marine Equipment and Technology Institute Jiangsu University of Science and TechnologyZhenjiangJiangsu 212003China

Layered sodium manganese oxides(LSMOs),with two-dimensional channels for ion diffusion,have been regarded as the promising electrode materials in the application of asymmetric supercapacitors(ASCs).In this work,the layered Na0.5Mn2O4·1.5H2O was synthesized through a facile hydrothermal method by controlling the molar ratio of sodium and *** the molar ratio of sodium to manganese is 3:1,Na0.5Mn2O4·1.5H2O has shown the best capacitance of 369 F/g with current density of 0.5 A/g,and maintained a capacitance of 265 F/g after 2000 *** asymmetric supercapacitor consists of the sodium manages oxides as the positive electrode and active carbon(AC)as the negative electrode in 1 mol/L Na2SO4 *** voltage of the asymmetric supercapacitor has been expanded to 0~2 V with an energy density of 10.13 Wh/kg at a power density of 500 W/kg based on the total weight of both active electrode materials when the mass ratio of AC to Na0.5Mn2O4·1.5H2O was 3:1.

关键词： layered sodium manganese oxides asymmetric supercapacitor electrochemical performance

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Interferon-γ regulates cell malignant growth via the c-Abl/HDAC2 signaling pathway in mammary epithelial cells

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2019年第1期20卷 39-48页

作者： Wen-bo REN Xiao-jing XIA Jing HUANG Wen-fei GUO Yan-yi che Ting-hao HUANG Lian-cheng LEI College of Veterinary Medicine Jilin University The First Hospital Jilin University College of Animal Science and Veterinary Medicine Henan Institute of Science and Technology

Interferon-γ(IFN-γ) has been used to control cancers in clinical treatment. However, an increasing number of reports have suggested that in some cases effectiveness declines after a long treatment period, the reason being unclear. We have reported previously that long-term IFN-γ treatment induces malignant transformation of healthy lactating bovine mammary epithelial cells(BMECs) in vitro. In this study, we investigated the mechanisms underlying pthe malignant proliferation of BMECs under IFN-γ treatment. The primary BMECs used in this study were stimulated by IFN-γ(10 ng/mL) for a long term to promote malignancy. We observed that IFN-γ could promote malignant cell proliferation, increase the expression of cyclin D1/cyclin-dependent kinase 4(CDK4), decrease the expression of p21, and upregulate the expression of cellular-abelsongene(c-Abl) and histone deacetylase 2(HDAC2). The HDAC2 inhibitor, valproate(VPA) and the c-Abl inhibitor, imatinib, lowered the expression level of cyclin D1/CDK4, and increased the expression level of p21, leading to an inhibitory effect on IFN-γ-induced malignant cell growth. When c-Abl was downregulated, the HDAC2 level was also decreased by promoted proteasome degradation. These data suggest that IFN-γ promotes the growth of malignant BMECs through the c-Abl/HDAC2 signaling pathway. Our findings suggest that long-term application of IFN-γ may be closely associated with the promotion of cell growth and even the carcinogenesis of breast cancer.

关键词： Interferon-γ(IFN-γ) Cellular-abelsongene(c-Abl) Histone deacetylase 2(HDAC2) Malignant cell growth

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钢纤维混凝土梁抗剪强度截面分析方法

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大连理工大学学报 2010年第6期50卷 1003-1007页

作者：车轶武玉赞仲伟秋大连理工大学海岸和近海工程国家重点实验室辽宁大连116024 信息产业电子第十一设计研究院有限公司大连分院辽宁大连116600

在修正压力场理论和钢纤维混凝土梁受弯理论的基础上建立了钢纤维混凝土梁抗剪强度的截面分析方法,考虑了钢纤维混凝土梁裂缝处的局部应力控制条件.通过对采用3条不同钢纤维混凝土受拉应力-应变曲线的计算结果与试验结果比较,建议了考... 详细信息

在修正压力场理论和钢纤维混凝土梁受弯理论的基础上建立了钢纤维混凝土梁抗剪强度的截面分析方法,考虑了钢纤维混凝土梁裂缝处的局部应力控制条件.通过对采用3条不同钢纤维混凝土受拉应力-应变曲线的计算结果与试验结果比较,建议了考虑受拉强化效应的受拉应力-应变曲线.此外讨论了计算模型中裂缝局部控制条件对抗剪强度计算结果的影响.对44根剪跨比大于2.0的钢纤维混凝土梁进行了分析,分析结果与试验值吻合很好.

关键词：钢纤维混凝土抗剪强度修正压力场理论

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基于RTU的集散式油库发油系统

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制造业自动化 2008年第8期30卷 88-91,94页

作者：车一曼淄川区技工学校山东淄博255100

自动化管理系统是油库改造的主流方向,文章介绍了一种可适应低温特殊环境属性的RTU控制发油系统,可以保证北方冬天油库正常运营。文章中对RTU控制器原理和系统结构进行详细论述,对控制系统的硬件和软件分别进行了设计实现。采用分散式... 详细信息

自动化管理系统是油库改造的主流方向,文章介绍了一种可适应低温特殊环境属性的RTU控制发油系统,可以保证北方冬天油库正常运营。文章中对RTU控制器原理和系统结构进行详细论述,对控制系统的硬件和软件分别进行了设计实现。采用分散式控制方式可以有效减小油库整体事故的发生概率,提高了油库发油的质量和效率,并且方便实现油库日后的扩建。

关键词： RTU控制器集散式系统自动发油油库

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