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World Journal of Gastroenterology 2000年第4期6卷 569-571页

作者： Shu Feng jin dan Song Microbial Engineering Department Institute of Applied EcologyChinese Academy of SciencesShenyang 110015Liaoning ProvinceChina Key Laboratory of Cell Biology Ministry of Public Health of ChinaChina Medical UniversityShenyang 110001Liaoning ProvinceChina

The endoplasmic reticulum (ER) consists of a complex system of tubules, lamellae, and flattened vesicles, and has a variety of morphologies in different cells. It is believed to play a central role in the biosynthesis of cholesterol, phospholipids, steroids, prostaglandins, membrane and secretory proteins[1]. Cancer cells have different functions and ultrastmcture from their original cells[2-4]. The studies on ER membrane system of cancer cells are of great significance in understanding their malignant behavior. In the present work, the ultrastructural characteristics of ER in human colorectal carcinoma cell lines with different differentiation degrees were investigated.

关键词： colorectal neoplasms endoplasmic reticulum ultrastructure microscopy electron microscopy electron scanning cell differentiation

Adaptive Short-Time Fractional Fourier Transform Based on Minimum Information Entropy

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Journal of Beijing Institute of Technology 2021年第3期30卷 265-273页

作者： Bing Deng dan jin Junbao Luan Naval Aviation University Yantai 264001ShandongChina

Traditional short-time fractional Fourier transform(STFrFT)has a single and fixed window function,which can not be adjusted adaptively according to the characteristics of fre-quency and frequency change *** order to overcome the shortcomings,the STFrFT method with adaptive window function is *** this method,the window function of STFrFT is ad-aptively adjusted by establishing a library containing multiple window functions and taking the minimum information entropy as the criterion,so as to obtain a time-frequency distribution that better matches the desired *** method takes into account the time-frequency resolution characteristics of STFrFT and the excellent characteristics of adaptive adjustment to window func-tion,improves the time-frequency aggregation on the basis of eliminating cross term interference,and provides a new tool for improving the time-frequency analysis ability of complex modulated sig-nals.

关键词： short-time fractional Fourier transform(STFrFT) adaptive algorithm minimum in-formation entropy

Adaptive output regulation for cyber-physical systems under time-delay attacks

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Control Theory and Technology 2022年第1期20卷 20-31页

作者： dan jin Bo Chen Li Yu Shichao Liu College of Information Engineering Zhejiang University of TechnologyHangzhou310023ZhejiangChina Institute of Cyberspace Security Zhejiang University of TechnologyHangzhou310023ZhejiangChina Department of Electronics Carleton UniversityOttawaONK1S5B6Canada

In this paper,we present an output regulation method for unknown cyber-physical systems(CPSs)under time-delay attacks in both the sensor-to-controller(S-C)channel and the controller-to-actuator(C-A)*** proposed approach is designed using control inputs and tracking errors which are accessible *** learning is leveraged to update the control gains in real time using policy or value iterations.A thorough stability analysis is conducted and it is found that the proposed controller can sustain the convergence and asymptotic stability even when two channels are ***,comparison results with a simulated CPS verify the effectiveness of the proposed output regulation method.

关键词： Adaptive output regulation Cyber-physical systems Time-delay attacks Reinforcement learning

Heterotopic pancreas adenocarcinoma in the stomach: A case report and literature review

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World Journal of Clinical Cases 2020年第10期8卷 1979-1987页

作者： Yao Xiong Yue Xie dan-dan jin Xin-Ying Wang Department of Gastroenterology Zhujiang Hospital of Southern Medical UniversityGuangzhou 510280Guangdong ProvinceChina

BACKGROUND Heterotopic pancreas is a common lesion found in the gastrointestinal tract and is usually considered a benign *** of malignant change of heterotopic pancreas are *** SUMMARY A 44-year-old Chinese female underwent a gastroscopy to assess abdominal distension that had persisted for 2 months.A protruding lesion in the gastric antrum was revealed but no malignant tissue was found in the biopsy *** patient's symptom persisted and progressed to repeated *** after 4 months revealed obstruction of the gastric outlet caused by the protruding lesion.A distal gastrectomy was *** examination of the surgical specimen showed the malignant transformation of aberrant pancreas in the *** consisting of folinic acid,fluorouracil,and oxaliplatin was administered for three cycles,and was changed to gemcitabine monotherapy because of adverse effects and increased serum tumor marker *** patient remained asymptomatic during a 12-month *** Pancreatic heterotopy should be considered as source of a potentially malignant lesion,and early treatment or close monitoring for aberrant pancreas is recommended.

关键词： Stomach Pyloric obstruction Heterotopic pancreas Adenocarcinoma Case report

Abscisic Acid Suppresses the Highly Occurred Somatic Homologous Recombination in Arabidopsis rfc1 Mutant

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Journal of Genetics and Genomics 2013年第9期40卷 465-471页

作者： Tingxiu Yao dan jin Qian Liu Zhizhong Gong State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural University National Center for Plant Gene Research

The phytohormone abscisic acid （ABA） regulates many aspects of division. Previous study indicates that ABA treatment increases DNA plant growth, including seed germination, root growth and cell damage and somatic homologous recombination （HR） in Arabi- dopsis abo4/pol ε （aba overly-sensitive 4/DNA polymerase ε） mutants. DNA replication factor C （RFC） complex is required for loading PCNA （Proliferating Cell Nuclear Antigen） during DNA replication. The defect in RFC1, the largest subunit of RFC, causes the high HR and DNA damage sensitivity in Arabidopsis. Here we found that like pol e/abo4, rfcl is sensitive to ABA in both ABA-inhibiting seed germination and root growth. However, ABA treatment greatly reduces HR and also reduces the expression of the DNA-damaged marker genes in ,rfcl. These results suggest that RFCI plays critical roles in ABA-mediated HR in Arabidopsis.

关键词： Abscisic acid DNA replication factor C1 Genomic stability

Reduced-Complexity Turbo Equalization for Turbo Coded MIMO/OFDM Systems

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The Journal of China Universities of Posts and Telecommunications 2006年第1期13卷 93-98页

作者： jin Yi-dan ZHANG Feng WU Wei-ling Information Engineering School Beijing University of Posts and Teleeommunications Beijing 100876 P. R China

This paper derives a low-complexity turbo equalization algorithm for turbo coded multiple input multiple output/ orthogonal frequency division multiplexing systems. This algorithm consists of soft-output decision-feedback equalization with a probabilistic data association algorithm and a soft-input soft-output turbo channel decoder using iterative operations. In each iteration, extrinsic information extracted from the probabilistic data association algorithm detector and from the channel decoder is used as the prior information for the next iteration to realize iterative channel equalization and channel decoding, Our simulation results show that the algorithm improves the signal noise ratio around 1 dB with bit error rate reaching 10 -6 when the Eb/ N0 - 4 dB compared to minimum mean square error and match filter, and can greatly reduce the intersymbol interference at a low overall complexity of O（ N^3） after 2 iterations.

关键词： MIMO OFDM turbo equalization probabilistic data association turbo channel decoding 16QAM ISI

Iterative multi-user detection and decoding for space-time block coding systems

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The Journal of China Universities of Posts and Telecommunications 2006年第4期13卷 24-28页

作者： jin Yi-dan ZHANG Feng WU Wei-ling School of Information Engineering Beijing University of Posts and Telecommunications Beijing 100876 China Institue of China Mobile Beijing 100053 China

To restrain the interference of co-channel users using space-time block coding （STBC）, the proposed Gaussian-forcing soft decision multi-user detection （GFSDMUD） algorithm is applied in fiat-fading channels by using the relation among the users＇ signals, which can enhance the capacity by introducing co-channel users. During iterations, extrinsic information is calculated and exchanged between a soft multi-user detector and a bank of turbo decoders to achieve refined estimates of the users＇ signals. The simulations show that the proposed iterative receiver techniques provide significant performance improvement around 2 dB over conventional noniterative methods. Furthermore, iterative multi-user space-time processing techniques offer substantial performance gains around 8 dB by adding the number of receiver antennas from 4 to 6, and the system performance can be enhanced by using this strategy in multi-user STBC systems, which is very important for enlarging the system capacity.

关键词： STBC multi-user detection Turbo processing gaussian-Forcing soft decision Turbo channel decoding

Effect of comprehensive management combined with cognitive intervention on patient cooperation and complications during digestive endoscopy

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World Journal of Gastrointestinal Surgery 2024年第11期16卷 3531-3537页

作者： jin-dan Yuan Zhi-Zhi Zhang Digestive Endoscopy Center The First Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

BACKGROUND As lifestyles continue to change worldwide,the incidence of digestive tract carcinoma has gradually *** endoscopy is an important tool that can assist in the diagnosis,treatment,and surgical intervention for this ***,the examination process is affected by many factors,and patient cooperation is often poor,which can increase the risk of *** To explore the effects of integrated management and cognitive intervention on cooperation and complications in patients undergoing endoscopy for early gastrointestinal *** A total of 354 patients with early stage gastrointestinal cancer who underwent digestive endoscopy procedures between January and December 2023 at our hospital were divided into observation and control groups(177 patients in each group)in a randomized controlled blind *** control group received routine interventions,while the observation group received comprehensive integrated management combined with cognitive *** compared the changes in adverse mood,discomfort,examination time,cooperation with the examination,and complications before and after the intervention between the two *** The self-rated anxiety and depression scale scores were lower in the observation group than in the control group(P<0.05).The visual analog scale scores for discomfort during intubation and examination were also lower in the observation group than in the control group(P<0.05).Furthermore,the examination time was shorter in the observation group than in the control group(P<0.05),and the degree of cooperation(94.35%)was higher in the observation group than in the control group(84.75%;P<0.05).Lastly,the incidence rates of gastrointestinal adverse reactions(10.17%vs 20.34%),choking agitation(14.69%vs 24.86%),abdominal pain(8.47%vs 18.08%),and muscle tension(5.08%vs 14.12%)were all lower in the observation group than in the control group(P<0.05).CONCLUSION Integrated management and cognitive int

关键词： Digestive endoscopy Comprehensive integrated management Cognitive intervention Cooperation Complications

Secure H_(∞) control against time-delay attacks in cyber-physical systems

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Journal of Control and Decision 2022年第4期9卷 420-430页

作者： dan jin Mingnan Hu Bo Chen Li Yu College of Information Science and Technology Zhejiang Shuren UniversityHangzhouPeople’s Republic of China Department of Automation Zhejiang University of TechnologyHangzhouPeople’s Republic of China

This paper is concerned with the secure H_(∞) control problem for cyber-physical systems(CPSs)under time-delay attacks,which cause the systems’information to be received with *** transforming the H_(∞) control problem to a two-player zero-sum game problem,the H_(∞) controller can be obtained by solving the saddle point for the *** to the unknown system parameters,a model-free reinforcement learning(RL)method is applied,and the measurement feedback controller is designed based on the historical inputs and the tracking *** obviate the requirement of the initial admissible policy,the value iteration(VI)of the adaptive dynamic program(ADP)algorithm is proposed to solve the approximate saddle ***,the con-vergence of the proposed algorithm is ***,a networked circuit system is employed to show the effectiveness of the proposed methods.

关键词： Secure H_(∞)control time-delay attacks cyber-physical systems game theory

Two new steroidal glycosides from Ophiopogon japonicus

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Chinese Chemical Letters 2008年第9期19卷 1086-1088页

作者： YiFeng Zhou jin Qi dan Ni Zhu BoYang Yu Department of Complex Prescription of TCM China Pharmaceutical University 1 Shennong Road Nanjing 210038 China

Two new C27-steroidal glycosides were isolated from the fibrous roots of Ophiopogon japonicus. The spectral analysis and chemical evidence revealed their chemical structures to be （25R）-spirost-5,14-dien-3β-yl-O-α-L-rhamnopyranosyl-（1 → 2）-β-D- xylopyranosyl-（1 → 4）-β-D-glucopyranoside （1） and ophiogenin 3-O-β-D-glucopyranoside （2）.

关键词： Ophiopogon japonicus Liliaceae C27-steroidal glycoside