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Method and Practice of Trusted Embedded Computing and Data Transmission Protection Architecture Based on Android

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Chinese Journal of Electronics 2024年第3期33卷 623-634页

作者： Yichuan WANG Wen GAO Xinhong hei Yanning DU School of Computer Science and Engineering Xi'an University of Technology Shaanxi Key Laboratory for Network Computing and Security Technology

in recent years,the rapid development of internet technology has constantly enriched people's daily life and gradually changed from the traditional computer terminal to the mobile *** with it comes the security problems brought by the mobile *** for Android system,due to its open source nature,malicious applications continue to emerge,which greatly threatens the data security of ***,this paper proposes a method of trusted embedded static measurement and data transmission protection architecture based on Android to reduce the risk of data leakage in the process of terminal storage and *** conducted detailed data and feasibility analysis of the proposed method from the aspects of time consumption,storage overhead and *** experimental results show that this method can detect Android system layer attacks such as self-booting of the malicious module and improve the security of data encryption and transmission process *** with the native system,the additional performance overhead is small.

关键词： Embedded computing Protocols Data security Computer architecture Encryption internet Data communication

Atomscopic of ripple origins for two-dimensional monolayer transition metal dichalcogenides

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Nano Research 2024年第3期17卷 2136-2144页

作者： Haitao Yu Mingzi Sun Xiao Wu Cheuk hei Chan Bolong Huang Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina Research Centre for Carbon-Strategic Catalysis The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332USA

During the development of ultrathin two-dimensional(2D)materials,the appearance of ripples has been widely ***,the formation mechanisms and their influences are still rarely investigated,especially their contributions to the electronic structures and optical *** compensate for the knowledge gap,we have carried out comprehensive theoretical studies on the monolayer WSe_(2) with a series of ripple structures from 0 to 12Åin different lattice *** sensitivity of the formation energy,band structures,electronic structures,and optical properties to the ripple structures have been performed systematically for the first *** formation of ripples in Armchair and zigzag simultaneously are more energetically favorable,leading to more flexible optimizations of the optoelectronic *** improved charge-locking effect and extension of absorption ranges indicate the significant role of ripple *** spontaneous formation of ripples is associated with orbital rearrangements and structural *** leads to the unique charge carrier correlate inversion between W-5d and Se-4p orbitals,resulting in the pinning of the fermi *** work has supplied significant references to understand ultrathin 2D structures and benefit their future developments and applications in high-performance optoelectronic devices.

关键词： two-dimensional(2D)materials ripples strain effect charge carrier correlation inversion optoelectronic properties

Radiative loss of coherence in free electrons:a long-range quantum phenomenon

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Light(Science & Applications) 2024年第2期13卷 294-301页

作者： Cruz i.Velasco Valerio Di Giulio f.Javier García de Abajo iCfO-institut de Ciencies fotoniques The Barcelona Institute of Science and Technology08860Castelldefels(Barcelona)Spain iCREA-institucióCatalana de Recerca i Estudis Avançats Passeig Lluís Companys 2308010BarcelonaSpain

Quantum physics rules the dynamics of small objects as they interact over microscopic length ***,quantum correlations involving macroscopic distances can be observed between entangled photons as well as in atomic gases and matter waves at low *** long-range nature of the electromagnetic coupling between charged particles and extended objects could also trigger quantum phenomena over large ***,we reveal a manifestation of quantum mechanics that involves macroscopic distances and results in a nearly complete depletion of coherence associated with which-way free-electron interference produced by electron-radiation coupling in the presence of distant extended *** is a ubiquitous effect that we illustrate through a rigorous theoretical analysis of a two-path electron beam interacting with a semi-infinite metallic plate and find the inter-path coherence to vanish proportionally to the path separation at zero temperature and exponentially at finite *** investigated regime of large distances originates in the coupling of the electron to radiative modes assisted by diffraction at material structures but without any involvement of material *** the fundamental interest of this macroscopic quantum phenomenon,our results suggest an approach to measuring the vacuum temperature and nondestructively sensing the presence of distant objects.

关键词： temperature quantum macroscopic

Design and performance evaluation of a large field-of-view dual-particle time-encoded imager based on a depth-of-interaction detector

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Nuclear Science and Techniques 2024年第4期35卷 1-14页

作者： Dong Zhao Xu-Wen Liang Ping-Kun Cai Wei Cheng Wen-Bao Jia Da-Qian hei Qing Shan Yong-Sheng Ling Chao Shi Department of Nuclear Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Collaborative innovation Center of Radiation Medicine of Jiangsu Higher Education institutions Suzhou 215000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China

Time-encoded imaging is useful for identifying potential special nuclear materials and other radioactive sources at a *** this study,a large field-of-view time-encoded imager was developed for gamma-ray and neutron source hotspot imaging based on a depth-of-interaction(DOi)*** imager primarily consists of a DOi detector system and a rotary dual-layer cylindrical coded *** EJ276 plastic scintillator coupled with two SiPMs was designed as the DOi detector to increase the field of view and improve the imager *** difference in signal time at both ends and the log of the signal amplitude ratio were used to calculate the interaction position *** position resolution of the DOi detector was calibrated using a collimated Cs-137 source,and the full width at half maximum of the reconstruction position of the Gaussian fitting curve was approximately 4.4 *** DOi detector can be arbitrarily divided into several units to independently reconstruct the source distribution *** unit length was optimized via Am-Be source-location experiments.A multidetector filtering method is proposed for image *** method can effectively reduce image noise caused by poor DOi detector position *** vertical field of view of the imager was(-55°,55°)when the detector was placed in the center of the coded mask.A DT neutron source at 20 m standoff could be located within 2400 s with an angular resolution of 3.5°.

关键词： Time-encoded imager Depth-of-interaction detector Dual-particle imaging Hotspot imaging

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Phase composition,conductivity,and sensor properties of cerium-doped indium oxide

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Nano Materials Science 2024年第2期6卷 193-200页

作者： M.i.ikim G.N.Gerasimov V.f.Gromov O.J.ilegbusi L.i.Trakhtenberg N.N.Semenov federal Research Center for Chemical Physics of RAS MoscowRussia University of Central florida OrlandoFLUSA Moscow institute of Physics and Technology(State University) DolgoprudnyMoscow RegionRussia Lomonosov Moscow State University MoscowRussia

The hydrothermal synthesis of in_(2)O_(3)and CeO_(2)–in_(2)O_(3)is investigated as well as the properties of sensor layers based on these *** the synthesis of in_(2)O_(3),intermediate products in(OH)_(3)and inOOH are formed,which are the precursors of stable cubic(c-in_(2)O_(3))and metastable rhombohedral(rh-in_(2)O_(3))phases,respectively.A transition from c-in_(2)O_(3)to rh-in_(2)O_(3)is observed with the addition of CeO_(2).The introduction of cerium into rh-in_(2)O_(3)results in a decrease in the sensor response to hydrogen,while it increases in composites based on c-in_(2)O_(3).The data on the sensor activity of the composites correlate with XPS results in which CeO_(2)causes a decrease in the concentrations of chemisorbed oxygen and oxygen vacancies in rh-in_(2)O_(3).The reverse situation is observed in composites based on c-in_(2)O_(3).Compared to in_(2)O_(3)and CeO_(2)–in_(2)O_(3)obtained by other methods,the synthesized composites demonstrate maximum response to H_(2)at low temperatures by 70–100℃,and have short response time(0.2–0.5 s),short recovery time(6–7 s),and long-term stability.A model is proposed for the dependence of sensitivity on the direction of electron transfer between in_(2)O_(3)and CeO_(2).

关键词： Cerium oxide indium oxide Nanocomposite Hydrothermal method Cubic phase Rhombohedral phase Sensor response Conductivity Hydrogen Response/recovery time

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Effects of synthesis parameters on the performance of crosslinked Co-polymers with clays for conformance control

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Petroleum Research 2024年第1期9卷 98-108页

作者： A.A.Roslan N.A.A.Aziz N.f.A.Deraman i.Dzulkarnain Petroleum Engineering Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia Chemical Engineering Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia

Conformance control or water shut-off is a technique used to improve oil *** conformance control,polymers block high permeability water areas and redistribute water drive toward unswept oil *** this study,co-polymers(denoted ATP-PGV/AM-co-AMPS)were synthesized using acrylamide(AM)and 2-acrylamide-2-methylpropane sulfonic acid(AMPS)as the monomers,polyethylene glycol(PEG)-200 and methylenebisacrylamide(MBA)as the crosslinkers,attapulgite(ATP)and bentonite(PGV)as the clay types,and ammonium persulfate(APS)as the initiator,in addition to paraffin oil and *** were synthesized using inverse emulsion polymerization with different concentrations of monomers,crosslinkers,and clays,and they were characterized using fourier-transform infrared(fTiR)spectroscopy and scanning electron microscopy(SEM)with energy dispersive X-ray spectroscopy(EDX).fTiR spectra of the samples confirmed the existence of sulfonate and hydroxyl groups,which are important for polymer ***-EDX images indicated that the morphology and elemental composition were different before and after swelling,confirming the occurrence of ***,samples were placed in sodium chloride solution(20,000 ppm)for 7 days to evaluate swelling at both room temperature and 90°*** analysis(TGA)and differential scanning calorimetry(DSC)were used to determine the thermal characteristics of the ***,rheological measurements were used to assess the deformation and rheological behavior of the *** results showed that after 1 day,good swelling without loss of mechanical strength was achieved with the composite synthesized using 10%AM,15%AMPS,6%PGV,and 10%ATP.

关键词： Polymer Clay Water shut-off Conformance Swelling

Chinese herbal medicine decreases incidence of hepatocellular carcinoma in diabetes mellitus patients with regular insulin management

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 716-731页

作者： Hsiang-Chun Lai Ju-Chien Cheng hei-Tung Yip Long-Bin Jeng Sheng-Teng Huang Graduate institute of Chinese Medicine School of Chinese MedicineCollege of Chinese MedicineChina Medical UniversityTaichung 404328TaiwanChina Department of Medical Laboratory Science and Biotechnology China Medical UniversityTaichung 404TaiwanChina Management Office for Health Data China Medical University HospitalTaichung 404327TaiwanChina Organ Transplantation Center China Medical University HospitalTaichung 40447TaiwanChina Department of Chinese Medicine China Medical University HospitalSchool of Chinese MedicineChina Medical UniversityTaichung 40447TaiwanChina

BACKGROUND Type 2 diabetes mellitus(DM)is an independent risk factor for hepatocellular carcinoma(HCC),while insulin is a potent *** a new therapeutic modality for preventing insulin users from developing HCC is a critical goal for *** To investigate whether regular herbal medicine use can decrease HCC risk in DM patients with regular insulin *** We used data acquired from the Taiwan,Chinaese National Health insurance research database between 2000 and *** identified patients with DM who were prescribed insulin for>3 *** herb user group was further defined as patients prescribed herbal medication for DM for>3 months per annum during RESULTS We initially enrolled 657144 DM patients with regular insulin use from 2000 to *** these,46849 patients had used a herbal treatment for DM,and 140547 patients were included as the matched control *** baseline variables were similar between the herb users and *** patients with regular herb use had a 12%decreased risk of HCC compared with the control group[adjusted hazard ratio(aHR)=0.88,95%Ci=0.80–0.97].The cumulative incidence of HCC in the herb users was significantly lower than that of the *** with a herb use of>5 years cumulatively exhibited a protective effect against development of HCC(aHR=0.82,Pf patients who developed HCC,herb users exhibited a longer survival time than nonusers(aHR=0.78,P=0.0001).Additionally,we report the top 10 herbs and formulas in prescriptions and summarize the potential pharmacological effects of the *** analysis indicated that Astragalus propinquus(Huang Qi)plus Salvia miltiorrhiza Bunge(Dan Shen),and Astragalus propinquus(Huang Qi)plus Trichosanthes kirilowii Maxim.(Tian Hua fen)were the most frequent combination of single ***,Ji Sheng Shen Qi Wan plus Dan Shen was the most frequent combination of herbs and *** This large-scale retrospective cohort study reveals th

关键词： Hepatocellular carcinoma Diabetes mellitus insulin Herb Taiwan,Chinaese National health insurance research database

E2f1-mediated Up-regulation of NCAPG Promotes Hepatocellular Carcinoma Development by inhibiting Pyroptosis

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Journal of Clinical and Translational Hepatology 2024年第1期12卷 25-35页

作者： Cuicui Xiao Jiao Gong Yusheng Jie Weicheng Liang Yan Tai Wei Qin Tongyu Lu Yutian Chong Ziqing hei Bo Hu Qi Zhang Biotherapy Center Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Department of Anesthesiology Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Key Laboratory of Liver Disease of Guangdong Province Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Department of Laboratory Medicine Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Department of infectious Diseases Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Cell-Gene Therapy Translational Medicine Research Center Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina Department of Hepatic Surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongChina

Background and Aims:As a subunit of the condensin complex,NCAPG has an important role in maintaining chromosome condensation,but its biological function and regulatory mechanism in hepatocellular carcinoma(HCC)remains ***:The prognostic ability of NCAPG in HCC patients was examined by univariate and multivariate Cox regression *** curves were plotted to compare the predictive ability of NCAPG and *** luciferase reporter system,and ChiP were used to investigate transcriptional potential of E2f1 to *** was observed by scanning electron *** expression of NCAPG,E2f1,and major proteins constituting NLRP3 inflammasome was determined by western blotting and *** in vivo tumor formation assay was conducted to verify the in vitro ***:Up-regulated NCAPG was identified in HCC tissues compared with adjacent tissue and high NCAPG was positively correlated with poor *** NCAPG mRNA level was a prognostic factor in HCC patients and also a diagnostic factor with higher predictive ability compared with AfP[AUROC 0.766(95%Ci:0.650–0.881)vs.0.649(95%Ci 0.506–0.793)].HBx transfection resulted in concomitant up-regulation of E2f1 and NCAPG.E2f1 significantly increased the activity of luciferase reporter fused with NCAPG reporter,and the interaction of E2f1 and NCAPG gene was confirmed by *** of E2f1 resulted in significant down-regulation of *** of NCAPG promote pyroptosis mediated by NLRP3 inflammasome activation in multiple HCC cell lines and also suppressed tumorigenesis in ***:We identified a novel role of NCAPG in the regulation of NLRP3 inflammasome-mediated pyroptosis,which was regulated by its upstream transactivator,*** role of E2f1-NCAPG-NLRP3 regulation of pyroptosis network may be a potential target in HCC treatment.

关键词： NCAPG Hepatocellular carcinoma Pyroptosis NLRP3 inflammasome Serum marker circulating RNA.

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祛魅与聚魂:沈从文的去中心化监狱叙事

民族文学研究 2024年第3期42卷 42-52页

作者：黑白中山大学博雅学院

沈从文在众多作品中对监狱空间的频频复写,已构成其文学宇宙的一个特殊场域,却在学界遭致不应缺席的缺席。沈从文采取叙事腔调的透明化、叙事题旨的经验化和叙事情境的狂欢化等三种书写策略,完成去中心化、反一切权威的理性祛魅以后,仍... 详细信息

沈从文在众多作品中对监狱空间的频频复写,已构成其文学宇宙的一个特殊场域,却在学界遭致不应缺席的缺席。沈从文采取叙事腔调的透明化、叙事题旨的经验化和叙事情境的狂欢化等三种书写策略,完成去中心化、反一切权威的理性祛魅以后,仍试图揉合湘西、“五四”、乡村、民间等不同知识形态,以群众路线重聚中华民族之魂。

关键词：沈从文监狱空间去中心化中华民族共同体