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Non-associative learning behavior in mixed proton and electron conductor hybrid pseudo-diode

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Journal of Materials Science & Technology 2023年第29期160卷 204-213页

作者： Zhi Wen shi Wei sheng Wang ling Ai Yan Li Xin Li Chen Hui Xiao Yu Heng Zeng Li Qiang Zhu School of Physical Science and Technology Ningbo UniversityNingbo 315211China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China

With inherent ionic priorities, mixed ion and electron conductor hybrid devices have been proposed for brain-inspired neuromorphic system applications, demonstrating interesting neuromorphic functions. Here, mixed proton and electron conductor (MPEC) hybrid oxide neuromorphic transistor is proposed by adopting aqueous solution-processed mesoporous silica coating (MSC)-based electrolyte as gate dielec- tric. With optical and electrical synergetic coupling behaviors, the device demonstrates typical synap- tic responses and transition between short-term plasticity and long-term plasticity. With unique field- configurable proton self-modulation behaviors, a pseudo-diode operation mode is demonstrated on the MPEC hybrid transistor. Moreover, the device demonstrates interesting non-associative learning, including habituation and sensitization behavior. The results show that the proposed MPEC hybrid oxide neuromor- phic transistor has great potential in the field of neuromorphic engineering and would have potential in the bionic visual perception platform .

关键词： Mixed proton and electron conductor hybrid Oxide neuromorphic transistors Non-associative learning Pseudo-diode

Is adult celiac disease really uncommon in Chinese?

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第3期10卷 168-171页

作者： ling-ling JIANG Bing-ling ZHANG You-shi LIU Department of Gastroenterology the First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310003 China)

Celiac disease(CD) is a type of intestinal malabsorption syndrome,in which the patients are intolerant to the gliadin in dietary gluten,resulting in chronic diarrhea and secondary malnutrition. The disease is common in Europe and the United States,but only sporadic reports are found in East Asia including China. Is CD really rare in China? We examined 62 patients by capsule endoscopy for chronic diarrhea from June 2003 to March 2008. Four patients with chronic diarrhea and weight loss were diagnosed to have CD. Under the capsule endoscopy,we observed that the villi of the proximal small bowel became short,and that the mucous membrane became atrophied in these four patients. Duodenal biopsies were performed during gastroscopy and the pathological changes of mucosa were confirmed to be Marsh 3 stage of CD. A gluten free diet significantly improved the conditions of the four patients. We suspect that in China,especially in the northern area where wheat is the main food,CD might not be uncommon,and its under-diagnosis could be caused by its clinical manifestations that could be easily covered by the symptoms from other clinical situations,particularly when it came to subclinical patients without obvious symptom or to patients with ex-traintestinal symptoms as the initial manifestations.

关键词： Celiac disease (CD) China Gluten Prevalence Capsule endoscopy

Synthesis and Crystal Structure of 1-(4-Chlorophenyl)-2-cyano-3-amino-3a-hydroxy- 3a,3b,6,7-tetrahydrobenzo[4,5]indene

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Chinese Journal of Structural Chemistry 2005年第12期24卷 1393-1396页

作者： shi Da-Qing shi Chun-ling RONG Liang-Ce Department of Chemistr） Xuzhou Normal University Xuzhou 221116 China The Key Laboratory of Biotechnology on Medical Plants of Jiangsu Province Xuzhou 221116 China

The title compound 1-（4-chlorophenyl）-2-cyano-3-amino-3a-hydroxy-3a,3b,6,7- tetrahydro-benzo[4,5]indene 2, has been synthesized by the reductive cyclization of 2-cyano-3- （4-chlorophenyl）-3-（1-tetralon-2-yl） propionitrile 1 induced by low-valent titanium reagent and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group C2/c with a = 28.244（7）, b = 14.401（3）, c = 21.245（3）A,β= 115.71（2）°, V = 7786（3）A^3, Mr= 696.13, Dc = 1.188 g/cm^3, Z = 8,μ（MoKα） = 0.208 mm^-1, F（000） = 2916, R = 0.0783 and wR = 0.2350. X-ray analysis reveals that the five-membered ring （C（7）～C（l l）） adopts an envelop conformation, while the six-membered ring （C（10）～C（14）, C（19）） has a half-chair conformation. Meanwhile, intermolecular H-bond interactions result in the formation of polymer.

关键词： tetrahydrobenzoindene synthesis crystal structure low-valent titanium

Biodegradable Zn-0.5Li alloy rib plate:Processing procedure development and in vitro performance evaluation

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Journal of Materials Science & Technology 2023年第10期141卷 245-256页

作者： Jin-ling Sun Yun Feng Zhang-Zhi shi Zhe Xue Meng Cao sheng-Lian Yao Zhen Li Lu-Ning Wang Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Department of Ophthalmology Beijing Key Laboratory of Restoration of Damaged Ocular NervePeking University Third HospitalBeijing 100191China Orthopedics Department Peking University ShouGang HospitalBeijing 100144China Advanced Technology and Materials Co. Ltd(AT&M)Beijing 100081China

Trauma kills more than four million people worldwide each year,with chest trauma accounting for 25%of these *** fractures are the main manifestation of chest *** Zn alloys offer a new option to overcome clinical problems caused by permanent rib fracture internal fixation mate-rials,e.g.,long-term stress masking and secondary *** this study,the fabrication procedure of biodegradable Zn-0.5Li alloy rib plates is successfully developed,which consists of casting,hot-warm rolling,cutting,and pressing *** three-point bending performance of the Zn al-loy rib plates is comparable to that of commercial pure Ti rib plates,much higher than that of pure Zn rib *** addition,the Zn alloy exhibits the best antibacterial ability against *** and *** among the three *** the Zn alloy exhibits a weaker MC3T3 cytocompatibility than pure Ti,it is better than pure *** study provides a foundation for the future development of various biodegrad-able Zn alloy rib plates.

关键词： Biodegradable Zn alloy rib plate Mechanical properties Corrosion behavior Biocompatibility Antibacterial ability

The morphology, kinematics and metallicity of blue-core galaxies

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Research in Astronomy and Astrophysics 2019年第6期19卷 51-62页

作者： Yong-Yun Chen Yan-Mei Chen Qiu-sheng Gu Yong shi Long-Ji Bing Xiao-ling Yu School of Astronomy and Space Science Nanjing University Nanjing 210093 China Collaborative Innovation Center of Modern Astronomy and Space Exploration Nanjing 210093 China

We select 107 blue-core galaxies from the MaNGA survey, studying their morphology, kinematics as well as the gas-phase metallicity. Our results are as follows:(i) In our sample, 26% of blue-core galaxies have decoupled gas-star kinematics, indicating external gas accretion;15% have bar-like structure and 8% show post-merger features, such as tidal tails and irregular gas/star velocity field. All these processes/features, such as accreting external misaligned gas, interaction and bar, can trigger gas inflow. Thus the central star-forming activities lead to bluer colors in their centers(blue-core galaxies).(ii) By comparing with the SDSS DR7 star-forming galaxy sample, we find that the blue-core galaxies have higher central gas-phase metallicity than what is predicted by the local mass-metallicity relation. We explore the origin of the higher metallicity, finding that not only the blue-core galaxies, but also the flat-gradient and red-core galaxies all have higher metallicity. This can be explained by the combined effect of redshift and galaxy color.

关键词： galaxies abundances-galaxies formation-galaxies structure

Hyperbranched Polyurethane Acrylate Applied to UV Curable Flame Retardant Coatings

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Chemical Research in Chinese Universities 2001年第3期17卷 331-333页

作者： ZHU sheng-Wu shi Wen-Fang State Key Laboratory of Fire Science Department of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026P.R.China

UV curable hyperbranched prepolymers based on amine-ester, ester-amide and ether-amide started with AB_2-type monomers have been prepared by the authors. A series of work on allyl ether maleate hyperbranched polyesters for UV curing coatings by Hult and his colleagues has been reported. However, the UV cured films from those materials are all flammable when attached to fire without addition of flame retardants.

关键词： Flame retardant Polyurethane acrylate Phosphorus UV curing

Cooperative trajectory optimization of UAVs in approaching stage using feedback guidance methods

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Defence Technology（防务技术） 2023年第6期24卷 361-381页

作者： Hao-ran shi Fa-xing Lu ling Wu College of Weaponry Engineering Naval University of EngineeringWuhan430033China

This paper mainly studies the problem of using UAVs to provide accurate remote target indication for hypersonic *** on the optimal trajectory trends and feedback guidance methods,a new cooperative control algorithm is proposed to optimize trajectories of multi-UAVs for target tracking in approaching *** on UAV kinematics and sensor performance models,optimal trajectory trends of UAVs are analyzed ***,feedback guidance methods are proposed under the optimal observation trends of UAVs in the approaching target stage,producing trajectories with far less computational complexity and performance very close to the best-known ***,the sufficient condition for the UAV to form the optimal observation configuration by the feedback guidance method is presented,which guarantees that the proposed method can optimize the observation trajectory of the UAV in approaching ***,the feedback guidance method is numerically *** results demonstrate that the estimation performance of the feedback guidance method is superior to the Lyapunov guidance vector field(LGVF)method and verify the effectiveness of the proposed ***,compared with the receding horizon optimization(RHO)method,the proposed method has the same optimization ability as the RHO method and better real-time performance.

关键词： Unmanned aerial vehicles(UAVs) Target tracking Trajectory optimization Receding horizon optimization(RHO) Feedback guidance method

Redifferentiation of Human Gastric Cancer Cells Induced by Ascorbic Acid and Sodium Selenite

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Biomedical and Environmental Sciences 2002年第3期15卷 223-232页

作者： ZHENGQIU－sheng SUNXI－ling 等 Departmentofbiochemistry YantaiUniversity HospitalofYantaiUniversity YantaiUniversityYantai264005

Objective To explore the effects and mechanisms of ascorbic acid (AA) and sodium selenite (SS) on growth inhibition and redifferentiation in human gastric cancer cells. Methods In the present study, trypan blue dye exclusion method was used to determine the cell growth curve and mitotic index, cell electrophoresis and colonogenic potential were used as the indexes of redifferentiation. In order to find out the mechanisms of redifferentiation, the activities of superoxide dismutase (SOD), glutathione peroxidase (GPX) and catalase (CAT) were assayed, the content of malondialdehyde (MDA), reduced glutathione (GSH) and H2O2 were evaluated. Results After treatment with AA 3 mol/L + SS 2μmol/L, the growth rate and mitotic index of human gastric cancer cells (MGc-803) decreased remarkably. The indexes related with cell malignancy were alleviated. For example, cell surface charge was obviously decreased, the electrophoresis rate was dropped from 2.21 to 1.15μm·s-1·V-1·cm-1. The indexes related with cell redifferentiation were promoted. For example, the colonogenic potential was decreased to 93.5%. These results indicated that redifferentiation of human gastric cancer cells was successfully induced by AA + SS. The activities of SOD and GPX were significantly higher, while the activity of CAT was slower in treated group than that in the control. The content of MDA was slightly decreased, GSH was sharply decreased, and H2O2 content was dramatically increased. Conclusion These results indicated that combination of ascorbic acid and sodium selenite may induce the redifferentiation of human gastric cancer cells and inhibit cell growth by virtue of enhancing the activities of antioxidative enzymes and inducing the formation of H2O2, and altering the cell redox status. Combination of ascorbic acid and sodium selenite may be a potent anticancer agent for human gastric cancer.

关键词： Ascorbic acid Sodium selenite Gastric cancer Malondialdehyde Catalase Superoxide dismutase

3-D numerical simulation of curved open channel confluence flow with partially non-submerged rigid vegetation

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Journal of Hydrodynamics 2021年第5期33卷 992-1006页

作者： Zheng-rui shi Cong-fang Ai sheng Jin School of Civil and Hydraulic Engineering Dalian University of TechnologyDalian 116024China

For the study of the effects of partially non-submerged rigid vegetation on the free-surface confluence flow in a curved open channel,a numerical simulation is carried out by using the Volume of Fluid model combined with the porous media model with the software *** model is first validated by using available experimental measurement data with a good ***,the characteristics of the separation zone generated by the centrifugal forces and the confluence flow are *** to the resistance created by the vegetation,the velocities in the separation zone are more chaotic and the separation zone becomes smaller and more *** reduction of the separation zone area of the vegetated flow in the convex bank is more significant than that in the concave *** velocities in the vegetated region become much smaller and remains so in the downstream flow after the vegetation ***,the vegetation compresses and divides the circulations in the flow area,rebuilding a structure with smaller circulations in the main flow and unclear circulations in the vegetation *** addition,the bed wall shear stresses are significantly smaller in the vegetation region and the separation zone compared to the non-vegetated *** implies that the vegetation can have the effect of protecting the river bed from erosion.

关键词： Curved open channel confluence flow porous media model non-submerged rigid vegetation separation zone