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Antioxidant activity of polyaniline nanofibers

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Chinese Chemical Letters 2007年第8期18卷 1005-1008页

作者： jia Wang li Hua zhu Jing li He Qing Tang Department of Chemistry and Chemical Engineering Hubei Key laboratory of Bioinorganic Chemistry and Materia Medica Huazhong University of Science and Technology Wuhan 430074 China

Well-confined uniform polyaniline （PANI） nanofibers were synthesized by using photo-assisted chemical oxidative polymer- ization of aniline in the presence of different dopant acids, and the radical scavenging ability of the produced PANI nanofibers was determined by the DPPH assay. It was found that the antioxidant activity of PANI nanofibers was higher than conventional PANI, and increased with decreasing of averaged diameter of the nanofibers. The enhanced antioxidant activity was concerned with increased surface area of PANI nanofibers.

关键词： Polyaniline nanofibers Dopant acids Antioxidant activity DPPH radical

A facile synthesis of cyano-chlorins related to chlorophyll from formyl (pyro)-pheophorbide-a by a tandem transformation of the aldehyde into a nitrile group

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Chinese Chemical Letters 2016年第5期27卷 789-794页

作者： Na Gao jia-zhu li Yan-Long li Zhen Wang Jin-Jun Wang Department of Food & Biological Engineering Wenjing College Yantai University College of Chemistry and Chemical Engineering Yantai University

A facile synthesis for cyanochlorin related to chlorophyll from a formyl-substituted chlorin, by the oxidation of methyl （pyro）pheophorbide-a, was accomplished. These readily available chlorin aldehydes were assembled together with hydroxylamine hydrochloride in a tandem process to produce the corresponding chlorin nitriles in moderate to good yields. The formation of chlorin nitrile was discussed and a possible mechanism for the corresponding cyanation reaction was tentatively proposed.

关键词： Chlorophyll-α Chlorin(Pyro)pheophorbide-α Cyanation reaction Beckmann rearrangement Tandem transformation

Designing hierarchical structures for innovative cooling textile

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Nano Research 2024年第10期17卷 9202-9224页

作者： Xiran Du Jinlei li Bin zhu jia zhu National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjing 210023China School of Sustainable Energy and Resources Nanjing UniversitySuzhou 215163China

The potential of personal cooling technologies in reducing air conditioning energy consumption and enhancing human thermal comfort is *** review focuses on recent advancements in hierarchical structure design for innovative cooling *** with insights into fundamental heat transfer processes between the human body,textile,and the surroundings,we uncover key control *** the advanced hierarchical structure designs enabling effective radiation,sweat evaporation,conduction management,and integration of cold energy sources for realizing effective human body cooling are systematically ***,we explore multifunctional designs beyond cooling,including switchable cooling-heating and ***,we engage in discussions on unifying cooling performance tests and additional multiple requirements to make strides toward practical *** review is anticipated to be a valuable resource,providing the scientific and industrial communities with a quick grasp of past advancements,current challenges,and future directions in achieving effective human body cooling.

关键词： thermal comfort personal cooling textile hierarchical structures

Semi-Measurement-Device-Independent Quantum State Tomography

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Chinese Physics Letters 2022年第7期39卷 14-17页

作者： jian li jia-li zhu jiang Gao Zhi-Guang Pang Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China

As a fundamental tool in the quantum information field, quantum state tomography can be used to reconstruct any unknown state. Generally, it needs a tomographically complete set of measurements, such that all measurements are fully characterized. Here, we propose a semi-measurement-device-independent quantum state tomography protocol, which only needs one characterized measurement and a trusted ancillary system. Furthermore, we perform corresponding experiments using linear optics. Our results show that the average state fidelity is as high as 0.973, verifying the effectiveness of the scheme.

关键词： Semi-Measurement-Device-Independent Quantum State Tomography Quantum

A Construction of Authentication Codes with Arbitration from Vector Spaces over Finite Fields

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Journal of Mathematical Research and Exposition 2011年第2期31卷 269-278页

作者： Wei jia li Ji zhu NAN School of Mathematical Sciences Dalian University of Technology Liaoning 116024 P. R. China

This paper is devoted to constructing an authentication code with arbitration using subspaces of vector spaces over finite ***,if we choose the encoding rules of the transmitter and the decoding rules of the receiver according to a uniform probability distribution,then some parameters and the probabilities of successful attacks are computed.

关键词： authentication code with arbitration vector space finite field

Security-Reliability Tradeoff Analysis for Jamming Aided Decode-and-Forward Relay Networks

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China Communications 2024年第5期21卷 218-228页

作者： Zou Ronggui Zou Yulong zhu jia li Bin School of Telecommunications and Information Engineering Nanjing University of Posts and TelecommunicationsNanjing 210003China

In this paper,we explore a cooperative decode-and-forward(DF)relay network comprised of a source,a relay,and a destination in the presence of an *** improve physical-layer security of the relay system,we propose a jamming aided decodeand-forward relay(JDFR)scheme combining the use of artificial noise and DF relaying which requires two stages to transmit a ***,in stage one,the source sends confidential message to the relay while the destination acts as a friendly jammer and transmits artificial noise to confound the *** stage two,the relay forwards its re-encoded message to the destination while the source emits artificial noise to confuse the *** addition,we analyze the security-reliability tradeoff(SRT)performance of the proposed JDFR scheme,where security and reliability are evaluated by deriving intercept probability(IP)and outage probability(OP),*** the purpose of comparison,SRT of the traditional decode-and-forward relay(TDFR)scheme is also *** results show that the SRT performance of the proposed JDFR scheme is better than that of the TDFR ***,it is shown that for the JDFR scheme,a better SRT performance can be obtained by the optimal power allocation(OPA)between the friendly jammer and user.

关键词： decode-and-forward relay friendly jammer physical layer security power allocation security-reliability tradeoff

Five-in-one: a novel, cost-effective yet simple use of micro needle holder

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International Journal of Ophthalmology(English edition) 2022年第4期15卷 657-660页

作者： Ning Gao jia-li zhu An-Le Su lie-ling Kou Zhao liu Department of Ophthalmology the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina Department of Ophthalmology Yulin No.2 HospitalYulin 719000Shaanxi ProvinceChina Department of Ophthalmology Xi’an No.1 HospitalXi’an 710002Shaanxi ProvinceChina Department of Ophthalmology Ankang Hospital of Traditional Chinese MedicineAnkang 725000Shaanxi ProvinceChina

AIM: To achieve a balance between efficiency and cost in the management of medical instrument by the use of micro needle holder. METHODS: In this study, the novel multifunctional use of micro needle holders was performed between 2018 and 2019 at the Department of Ophthalmology in the 4 hospitals in Shaanxi Province. In this innovation, the micro needle holders were initially used as micro forceps to remove sutures, as eye spud to safety extract foreign body from cornea, as ciliary forceps to remove trichiasis, as well as punctal dilator to dilate most small puncta. RESULTS: Using this technique, the medical costs of both procurement and sterilization were cut off in the selected 4 hospitals. The purchase cost has dropped by roughly 50%. The sterilization cost was decreased by about 30%. CONCLUSION: The innovation in the five-in-one multifunctional use of micro needle holders saves the medical costs.

关键词： micro needle holder medical instrument ocular surgical instruments

Cycloastragenol induces apoptosis and protective autophagy through AMPK/ULK1/mTOR axis in human non-small cell lung cancer cell lines

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Journal of Integrative Medicine 2024年第4期22卷 503-514页

作者： li-hua zhu Yu-pei liang lian Yang Feng zhu li-jun jia He-gen li Department of Oncology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Cancer Institute of Traditional Chinese Medicine Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of Laboratory Medicine Huadong HospitalFudan UniversityShanghai 200237China

Objective:Studies have demonstrated that cycloastragenol induces antitumor effects in prostate,colorectal and gastric cancers;however,its efficacy for inhibiting the proliferation of lung cancer cells is largely *** study explores the efficacy of cycloastragenol for inhibiting non-small cell lung cancer(NSCLC)and elucidates the underlying molecular ***:The effects of cycloastragenol on lung cancer cell proliferation were assessed using an adenosine triphosphate monitoring system based on firefly luciferase and clonogenic formation ***-induced apoptosis in lung cancer cells was evaluated using dual staining flow cytometry with an annexin V-fluorescein isothiocyanate/propidium iodide *** elucidate the role of cycloastragenol in the induction of apoptosis,apoptosis-related proteins were examined using Western *** and Western blotting were used to determine whether cycloastragenol could induce autophagy in lung cancer *** techniques,including small interfering RNA technology,were used to investigate the underlying *** effects against lung cancer and biosafety of cycloastragenol were evaluated using a mouse subcutaneous tumor ***:Cycloastragenol triggered both autophagy and ***,cycloastragenol promoted apoptosis by facilitating the accumulation of phorbol-12-myristate-13-acetate-induced protein 1(NOXA),a critical apoptosis-related ***,cycloastragenol induced a protective autophagy response through modulation of the adenosine 5'-monophosphate-activated protein kinase(AMPK)/unc-51-like autophagy-activating kinase(ULK1)/mammalian target of rapamycin(mTOR)***:Our study sheds new light on the antitumor efficacy and mechanism of action of cycloastragenol in *** insight provides a scientific basis for exploring combination therapies that use cycloastragenol and inhibiting the AMPK/ULK1/mTOR pathway as a promising approach to

关键词： Non-small cell lung cancer Cycloastragenol Autophagy Apoptosis

Deep learning for code generation: a survey

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Science China(Information Sciences) 2024年第9期67卷 5-40页

作者： Huangzhao ZHANG Kechi ZHANG zhuo li jia li jia li Yongmin li Yunfei ZHAO Yuqi zhu Fang liU Ge li Zhi JIN Key Lab of High Confidence Software Technologies (Peking University) Ministry of Education School of Computer Science Peking University School of Computer Science and Engineering Beihang University

In the past decade, thanks to the powerfulness of deep-learning techniques, we have witnessed a whole new era of automated code generation. To sort out developments, we have conducted a comprehensive review of solutions to deep learning-based code generation. In this survey, we generally formalize the pipeline and procedure of code generation and categorize existing solutions according to taxonomy from perspectives of architecture, model-agnostic enhancing strategy, metrics, and tasks. In addition, we outline the challenges faced by current dominant large models and list several plausible directions for future research. We hope that this survey may provide handy guidance to understanding, utilizing, and developing deep learning-based code-generation techniques for researchers and practitioners.

关键词： code generation automated software engineering deep learning large model artificial intelligence