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Intelligent In-Vehicle Safety System Based on Yolov5

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Journal of Computer and Communications 2024年第3期12卷 207-218页

作者： biyun chen Wei Cai Jinwen Zhu College of Computer Information and Engineering Yancheng Teachers University Yancheng China

In order to reduce the occurrence of traffic accidents and assist drivers to avoid dangerous driving. This paper presents a smart in-vehicle safety system that utilises the Yolov5 algorithm. Yolov5 algorithm is used to anticipate driver fatigue and distraction behaviours, and remind drivers to pay attention to safe driving in time. The system continuously splits the frames and analyses the frame content through the video feedback from the front camera, compared to the traditional machine learning, Yolov5’s mosaic data is enhanced, resulting in a batch size enhancement of 92.3%, and it also uses the Drop Block mechanism to prevent overfitting. The hardware of this system uses STM32 microcontroller and uses system DMA interrupt control and buzzer alarm device to warn about dangerous driving behaviour.

关键词： Behaviour Detection STM32 Pyside2 Yolov5 Dlib Open Source Library Perclos Model

Chidamide plus prednisone,cyclophosphamide,and thalidomide for relapsed or refractory peripheral T-cell lymphoma:A multicenter phase II trial

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Chinese Medical Journal 2024年第13期137卷 1576-1582页

作者： Jinhua Liang Li Wang Xiaodong Wang Guohui Cui Jianfeng Zhou Tongyao Xing Kaixin Du Jingyan Xu Luqun Wang Rong Liang biyun chen Jian cheng Haorui Shen Jianyong Li Wei Xu Department of Hematology The First Affiliated Hospital of Nanjing Medical UniversityJiangsu Province HospitalNanjingJiangsu 210029China Key Laboratory of Hematology of Nanjing Medical University NanjingJiangsu 210029China Collaborative Innovation Center for Cancer Personalized Medicine NanjingJiangsu 210029China Department of Hematology Sichuan Academy of Medical Sciences&Sichuan Provincial People’s HospitalSchool of Medicine of University of Electronic Science and Technology of ChinaChengduSichuan 610000China Department of Hematology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Hematology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430030China Department of Hematology Nanjing Drum Tower HospitalNanjing University Medical SchoolNanjingJiangsu 210008China Department of Hematology Qilu Hospital of Shandong UniversityJinanShandong 250000China Department of Hematology Xijing HospitalThe Fourth Military Medical UniversityXi’anShaanxi 710032China Department of Hematology Fujian Provincial HospitalFuzhouFujian 350001China Department of Hematology Zhongda HospitalMedical School of Southeast UniversityNanjingJiangsu 210009China

Background:Although the treatment of peripheral T-cell lymphoma(PTCL)has undergone advancements during the past several years,the response rate and long-term effects with respect to patients with PTCL remain unsatisfactory—particularly for relapsed or refractory(R/R)*** phase II trial was designed to explore the efficacy and safety of an all-oral regimen of chidamide plus prednisone,cyclophosphamide,and thalidomide(CPCT)for R/R PTCL patients who could not tolerate the standard chemotherapy for a variety of ***:We conducted a multicenter phase II clinical trial in which we combined chidamide(30 mg twice weekly)with prednisone(20 mg daily after breakfast),cyclophosphamide(50 mg daily after lunch),and thalidomide(100 mg daily at bedtime)(the CPCT regimen)for a total of fewer than 12 cycles as an induction-combined treatment period,and then applied chidamide as single-drug ***-five patients were ultimately enrolled from August 2016 to April 2021 with respect to Chinese patients at nine *** primary objective was to assess the overall response rate(ORR)after the treatment with ***:Of the 45 enrolled patients,the optimal ORR and complete response(CR)/CR unconfirmed(CRu)were 71.1%(32/45)and 28.9%(13/45),respectively,and after a median follow-up period of 56 months,the median progression-free survival(PFS)and overall survival(OS)were 8.5 months and 17.2 months,*** five-year PFS and OS rates were 21.2%(95%confidence interval[CI],7.9-34.5%)and 43.8%(95%CI,28.3-59.3%),*** most common adverse event was neutropenia(20/45,44.4%),but we observed no treatment-related ***:The all-oral CPCT regimen was an effective and safe regimen for R/R PTCL patients who could not tolerate standard chemotherapy for various *** Registration:***,NCT02879526.

关键词： Peripheral T-cell lymphoma Chidamide Prednisone Cyclophosphamide Thalidomide All-oral regimen

An effective time-domain microwave image reconstruction algorithm for loss-y layered media utilizing the ADI-FDTD method

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The Journal of China Universities of Posts and Telecommunications 2018年第2期25卷 89-95页

作者： chen biyun Zhang Yerong Pan Xin College of Electronic Science and Engineering Nanjing University of Posts and Telecommunications School of Information Engineering Yancheng Teachers University Fuxin Branch Campus Aviation University of Air Force

The finite-difference time-domain （FDTD） method is extensively applied in dealing with time-domain microwave imaging（MWI） problems since it is robust, fast, simple to implement. However, the FDTD method is an explicit time-stepping technique, due to the constraint of the Courant-Friedrich-Levy （CFL） stability condition, the time step needs to be as small as the size of the fine cells, which brings a major increase in computational costs. A fast nonlinear electromagnetic reconstruction algorithm for layered loss-y media by using the alternating-direction implicit finite-difference time-domain （ADI-FDTD） method is proposed. This algorithm is based on an adjoint method, and the nonlinear iterations apply the ADI-FDTD method to calculate the forward and adjoint field, and adopt the Polak, Ribiere, Polyar conjugate-gradient （PRP-CG） optimization scheme. By comparing the simulation results based on ADI-FDTD method and the FDTD method, the validity and efficiency of the proposed algorithm have been proved. Furthermore, the relative residual errors （RRE） are introduced as the iterative computation termination conditions, which further prove the accuracy of this algorithm.

关键词： reconstruction algorithm ADI-FDTD MWI

计及灾后恢复全过程储能应急响应能力的配电网韧性规划

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电网技术 2024年第5期48卷 1855-1862,I0011页

作者：陈碧云金洋徐旗王一雯张勇军赵卓立梁志坚郭小璇电力系统最优化与节能技术重点实验室(广西大学) 广西壮族自治区南宁市530004 华南理工大学电力学院广东省广州市510640 广东工业大学自动化学院广东省广州市510006 广西电网有限责任公司电力科学研究院广西壮族自治区南宁市530023

储能因响应快、灵活性高的特点,已成为可再生能源发展必不可少的支撑技术,不仅具有削峰填谷、改善电能质量的作用,在灾后恢复过程中的应急响应能力同样不可忽视。提出了一种计及灾后恢复全过程储能应急响应能力的配电网韧性规划方法,构... 详细信息

储能因响应快、灵活性高的特点,已成为可再生能源发展必不可少的支撑技术,不仅具有削峰填谷、改善电能质量的作用,在灾后恢复过程中的应急响应能力同样不可忽视。提出了一种计及灾后恢复全过程储能应急响应能力的配电网韧性规划方法,构建了同时考虑网架增强和储能配置策略的配电网韧性增强双层规划模型,系统地刻画了极端灾害发生后配电网网架重构、设备抢修及复电等灾后恢复全过程的源-网-荷-储互动模式场景。最后,通过IEEE33节点系统的算例分析表明,所提方法能更充分地挖掘储能的应急响应潜力,有效提高增强性规划决策的精准度,获得更佳的投资回报。

关键词：配电网韧性规划储能应急响应能力

Evaluation of Genetic and Epigenetic Modification in Rapeseed(Brassica napus)Induced by Salt Stress

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Journal of Integrative Plant Biology 2007年第11期49卷 1599-1607页

作者： Guangyuan Lu Xiaoming Wu biyun chen Guizhen Gao Kun Xu Brassica Germplasm Division Oil Crops Research Institute Chinese Academy of Agricultural Science Wuhan 430062 China

Salinity is an important limiting environmental factor for rapeseed production worldwide. In this study, we assessed the extent and pattern of DNA damages caused by salt stress in rapeseed plants. Amplified fragment length polymorphism （AFLP） analysis revealed dose-related increases in sequence alterations in plantlets exposed to 10-1000 mmol/L sodium chloride. In addition, individual plantlets exposed to the same salt concentration showed different AFLP and selected region amplified polymorphism banding patterns. These observations suggested that DNA mutation in response to salt stress was random in the genome and the effect was dose-dependant. DNA methylation changes in response to salt stress were also evaluated by methylation sensitive amplified polymorphism （MSAP）. Three types of MSAP bands were recovered. Type Ⅰ bands were observed with both isoschizomers Hpa Ⅱ and Msp Ⅰ, while type Ⅱ and type Ⅲ bands were observed only with Hpa Ⅱ and Msp Ⅰ, respectively. Extensive changes in types of MSAP bands after NaCI treatments were observed, including appearance and disappearance of type Ⅰ, Ⅱ and Ⅲ bands, as well as exchanges between either type Ⅰand type Ⅱ or type Ⅰ and type Ⅲ bands. An increase of 0.2-17.6% cytosine methylated CCGG sites were detected in plantlets exposed to 10- 200 mmol/L salt compared to the control, and these changes included both de novo methylation and demethylation events. Nine methylation related fragments were also recovered and sequenced, and one sharing a high sequence homology with the ethylene responsive element binding factor was identified. These results demonstrated clear DNA genetic and epigenetic alterations in planUets as a response to salt stress, and these changes may suggest a mechanism for plants adaptation under salt stress.

关键词： Brassica napus DNA-methylation genetic variation methylation sensitive amplified polymorphism salt stress.

Detection of DNA methylation changes during seed germination in rapeseed (Brassica napus)

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Chinese Science Bulletin 2006年第2期51卷 182-190页

作者： LU Guangyuan WU Xiaoming chen biyun GAO Guizhen XU Kun LI Xiangzhi Key Laboratory of Oil Crops Genetic Improvement of the Ministry of Agriculture Oil Crops Research Institute CAAS Wuhan 430062 China

DNA methylation is known to play a crucial role in regulating plant development and or- gan or tissue differentiation. In this study, we as- sessed the extent and pattern of cytosine methylation during rapeseed (Brassica napus L.) seed germina- tion, and compared the methylation level of various tissues in seedling, using the techniques of methyla- tion-sensitive amplified polymorphism (MSAP) and HPLC separation and quantification of nucleosides. In all, 484 bands, each representing a recognition site cleaved by either or both of the isoschizomers, were amplified by 12 pairs of selective primers in DNA ob- tained from dry seeds. A total of 76 sites were found to be differentially digested by the isoschizomers, indicating that approximately 15.7% of 5′-CCGG-3′ sites in the genome were cytosine methylated. Four classes of patterns were observed in a comparative assay of cytosine methylation in the dry and germi- nating seeds; a small number of hypermethylation events occurred at 5′-CCGG-3′ sites in germinating seeds compared with dry seeds, while many more hypomethylation events were detected after seed germination. Differences in DNA methylation level in various tissues were also detected; radicel was less methylated than hypocotyl and cotyledon. These observations were further confirmed by HPLC analy- sis. In addition, sequencing of eleven differentially methylated fragments and the subsequent blast search revealed that cytosine methylated 5′-CCGG- 3′ sequences were equally distributed between cod- ing and non-coding regions. These results clearly demonstrate the power of MSAP technique for large-scale DNA methylation detection in rapeseed genome, and the complexity of DNA methylationchange during seed germination. DNA Hypomethyla- tion going with seed germination appears to be a necessary step toward transcriptional activation in gene expression, and may well contribute to the de- velopmental gene regulation.

关键词：油菜籽芸苔属 DNA甲基化作用种子萌芽 MSAP HPLC

学科竞赛对促进多学科融合实践教学效果的分析

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湖北理工学院学报 2024年第3期40卷 71-75页

作者：刘西京郑顺蓉陈碧云张家泉湖北理工学院环境科学与工程学院湖北黄石435003

传统的课堂教学模式常以教师为中心,学生缺少主动参与的机会。为探讨学科竞赛在促进学生自主学习和团队合作能力方面的作用,文章提出了多学科融合实践教学的策略,以寻找一种能够有效促进学生自主学习和提升团队合作能力的教学方式。实... 详细信息

传统的课堂教学模式常以教师为中心,学生缺少主动参与的机会。为探讨学科竞赛在促进学生自主学习和团队合作能力方面的作用,文章提出了多学科融合实践教学的策略,以寻找一种能够有效促进学生自主学习和提升团队合作能力的教学方式。实践研究发现,学科竞赛能够激发学生的学习兴趣,培养学生的自主学习能力和团队合作精神。多学科融合实践教学营造了一个促进学科之间互相交融的环境,培养了学生的跨学科思维和解决问题的能力。该研究对于学校教育教学改革具有一定的借鉴意义。

关键词：学科竞赛自主学习团队合作多学科融合实践教学

An XPS Study of Nitrogen Structures in Soil Humic Substances

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Pedosphere 2001年第4期11卷 321-326页

作者： WEN QIXIAO, chenG LILI and chen biyun Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China) 中科院南京土壤所江苏南京 210008

X-ray photoelectron spectroscopy (XPS) was applied to examine the N structures of soil humic substances and some of their analogues. It was found that for soil humic substances XPS method gave similar results as those obtained by 15N CPMAS NMR (cross-polarization magic-angle spinning nuclear magnetic resonance) method. 70%～86% of total N in soil humic substances was in the form of amide, and 6%～13% was presented as amines, with the remaining part as heterocyclic N. There was no difference in the distribution of the forms of N between the humic substances from soils formed over hundreds or thousands of years and the newly formed ones. For fulvic acid from weathered coal and benzoqu inone- (N H-4 )-2 S O-4 polymer the XPS results deviated significantly from the 15N CPMAS NMR data.

关键词： distribution of N forms 15N CPMAS NMR soil humic substances XPS.

Analysis of the Thyroid Carcinoma Incidence in Tianjin Over a Recent Twenty-Year Period

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Chinese Journal of Clinical Oncology 2005年第5期2卷 815-819页

作者： biyun Qian Kexin chen Min He Shufen Dong Haixin Li Fengju Song Department of Cancer Epidemiology Tianjin Medical University Cancer Institute and Hospital Tianjin 300060China.

OBJECTIVE To analyze the incidence rate and trend of thyroid cancer in Tianjin over a recent 20-year period. METHODS A method of descriptive epidemiology was used to study the occurrence of thyroid cancer. RESULTS During 1981-2001, the average incidence rate of thyroid cancer was 1.770 per 100,000 with a male to female incidence ratio of 1： 2.74, the occurrence being higher in females than in males. Thyroid cancer incidence increased gradually with time over the 20 years in both males and females, especially the incidence peaked in females of 35-50 years of age. CONCLUSION The rapid increase in the incidence rate of thyroid cancer, especially in females, suggests that further research on the risk factors and preventive efforts related to high-risk women should be conducted.

关键词： thyroid cancer epidemiology incidence rate time trend.