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刑事案件射击残留物高光谱实验教学设计研究

实验与分析 2024年第3期2卷 86-90页

作者：沈尧冯博颖杨敦舜魏育新杨蕾陈蕊丽中国人民公安大学侦查学院北京1000382 甘肃政法大学法学院甘肃兰州730070

枪击案件中,除了传统的枪支、弹头弹壳痕迹检验外,射击残留物的检验、弹道的检验也是至关重要的组成部分,是法庭科学检验的重要研究对象。传统的枪弹弹痕检查课程注重对弹头弹壳弹痕的讲解,并结合少量枪械结构和弹道的介绍,对于现场快... 详细信息

枪击案件中,除了传统的枪支、弹头弹壳痕迹检验外,射击残留物的检验、弹道的检验也是至关重要的组成部分,是法庭科学检验的重要研究对象。传统的枪弹弹痕检查课程注重对弹头弹壳弹痕的讲解,并结合少量枪械结构和弹道的介绍,对于现场快速提取检验刑事案件、现场快速检查弹丸弹痕(目标物弹孔)十分重要,然而,实验课程中并没有将弹着点射击残留物的相关知识纳入其中。本文针对警校本科生的特点,创新性地提出对于枪弹痕迹检验课程实验教学模式的新探索,将现场勘验射击残留物的实验纳入课程,使教学内容形成科学完整的体系,同时采用虚拟现实教学手段克服该课程实践难的特点,以达到学以致用、服务实战的教学效果。

关键词：枪弹痕迹检验实验教学设计射击残留物

RGB oralscan video-based orthodontic treatment monitoring

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Science China(Information Sciences) 2024年第1期67卷 124-139页

作者： Yan TIAN Hanshi FU Hao WANG Yuqi LIU Zhaocheng XU Hong chen Jianyuan LI ruili WANG School of Computer Science and Technology Zhejiang Gongshang University Shining3D Tech Co. Ltd. School of Information and Technology Monash University School of Mathematical and Computational Sciences Massey University Department of Stomatology Zhejiang Provincial People's HospitalHangzhou Medical College School of Computer and Computing Science Zhejiang University City College

Orthodontic treatment monitoring involves using current images and previous 3D models to estimate the relative position of individual teeth before and after orthodontic *** process differs from image-based object 6D pose estimation due to the gingiva deformation and varying pose offsets for each tooth during *** by the fact that the poses of molars remain relatively fixed in implicit orthodontics,we design an approach that employs multiview pose evaluation and bidirectional temporal propagation for jaw pose estimation and then employs an iteration-based method for tooth *** handle changes in tooth appearance or location with weak texture across frames,we also introduce an instance propagation module that leverages positional and semantic information to explore instance relations in the temporal *** evaluated the performance of our approach using both the Shining3D tooth pose dataset and the Aoralscan3 tooth registration *** experimental results demonstrate remarkable accuracy improvements compared with existing methods.

关键词： digital dentistry object 6D pose estimation deep learning computer vision

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Selective recognition of HIV RNA by dinuclear metallic ligands

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Chinese Chemical Letters 2018年第11期29卷 1637-1640页

作者： Xuedong Li Bo chen Ling Lan ruili Wang Duqiang LUO Li Liu Liang cheng Beijing National Laboratory for Molecular Sciences (BNLMS) CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China College of Life Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education Hebei University Baoding 071002 China University of Chinese Academy of Sciences Beijing 100049 China

We describe the development of dinuclear metallic ligands to target specific HIV RNA structures. Two series of dipyridinyl-N bridged dinuclear metal complexes were synthesized in moderate to good yields and their binding activities toward TAR and RRE RNA were studied both experimentally and theoretically. The docking calculation elucidated some structure features in dimetallic complexes that can affect TAR RNA-binding properties.

关键词： HIV RNA Dinuclear metallic ligands Binding Molecular recognition Selectivity

Potential glioblastoma biomarkers identified by mass spectroscopy and iTRAQ labeling

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Genes & Diseases 2023年第5期10卷 1767-1770页

作者： ruili Feng Mingyu chen Guanghong Luo Yanlu chen Jiao Wang Jian Xu Ming Xu Ping Zhong Tieqiao Wen Laboratory of Molecular Neural Biology School of Life SciencesShanghai UniversityShanghai 200444China Department of Neurosurgery Huashan HospitalShanghai Medical CollegeFudan UniversityShanghai 200040China Neurosurgical Institute of Fudan University Shanghai 200040China Shanghai Clinical Medical Center of Neurosurgery Shanghai 200040China Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration Shanghai 200040China

Glioblastoma multiforme(GBM)is the most common primary malignant tumor of the central nervous *** IV GBM is lethal,and has a high rate of relapse despite aggressive *** prognosis is poor because of therapeutic resistance and tumor relapse.1 Very low rates of clinical responses and frequent treatment failures are *** studies have focused on identifying genetic alterations in GBM that have diagnostic and prognostic values and may help to define the subclasses of the GBM patients,2,3 including mutations in isocitrate dehydrogenase 1(IDH1),amplification of epidermal growth factor receptors(EGFR),and mutations and polymorphisms of telomerase reverse transcriptase(TERT)*** markers are useful for identifying the pathogenesis of malignant glioma formation,but they are all associated with tumorigenesis and do not currently influence the treatment of most GBM patients.

关键词： alterations malignant prognosis

Transcriptomic and epigenomic remodeling occurs during vascular cambium periodicity in Populus tomentosa

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Horticulture Research 2021年第1期8卷 1271-1286页

作者： Bo chen Huimin Xu Yayu Guo Paul Grunhofer Lukas Schreiber Jinxing Lin ruili Li Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China College of Biological Sciences and Biotechnology Beijing Forestry UniversityBeijing 100083China Institute of Tree Development and Genome Editing Beijing Forestry UniversityBeijing 100083China College of Biological Sciences China Agricultural UniversityBeijing 100193China Institute of Cellular and Molecular Botany University of BonnKirschallee 1D-53115 BonnGermany

Trees in temperate regions exhibit evident seasonal patterns,which play vital roles in their growth and *** activity of cambial stem cells is the basis for regulating the quantity and quality of wood,which has received considerable ***,the underlying mechanisms of these processes have not been fully *** we performed a comprehensive analysis of morphological observations,transcriptome profiles,the DNA methylome,and miRNAs of the cambium in Populus tomentosa during the transition from dormancy to *** analysis showed that the active cambial zone exhibited a significant increase in the width and number of cell layers compared with those of the dormant and reactivating ***,we found that differentially expressed genes associated with vascular development were mainly involved in plant hormone signal transduction,cell division and expansion,and cell wall *** addition,we identified 235 known miRNAs and 125 novel *** expressed miRNAs and target genes showed stronger negative correlations than other miRNA/target ***,global methylation and transcription analysis revealed that CG gene body methylation was positively correlated with gene expression,whereas CHG exhibited the opposite trend in the downstream *** importantly,we observed that the number of CHH differentially methylated region(DMR)changes was the greatest during cambium ***,the genes with hypomethylated CHH DMRs in the promoter were involved in plant hormone signal transduction,phenylpropanoid biosynthesis,and plant–pathogen interactions during vascular cambium *** findings improve our systems-level understanding of the epigenomic diversity that exists in the annual growth cycle of trees.

关键词： periodicity finding during

血小板活化因子和血管内皮活性标志物与腔隙性脑梗死的关系

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华西医学 2019年第10期34卷 1143-1147页

作者：李伟张咪娟王琰王涛马敏江田春娥杨谦陈瑞利陕西省人民医院神经内科西安710068 西安医学院研究生院西安710068

目的探讨血小板活化因子和血管内皮活性标志物与腔隙性脑梗死(lacunar infarction,LI)的关系。方法纳入2018年3月—2019年2月在陕西省人民医院住院确诊为LI的患者100例,并收集与之匹配的健康对照者100例。入院后收集基本信息、临床基线... 详细信息

目的探讨血小板活化因子和血管内皮活性标志物与腔隙性脑梗死(lacunar infarction,LI)的关系。方法纳入2018年3月—2019年2月在陕西省人民医院住院确诊为LI的患者100例,并收集与之匹配的健康对照者100例。入院后收集基本信息、临床基线资料、实验室检查、颅脑MRI和治疗药物等资料,并检测患者在发病1个月及3个月时和对照组在入组时的血小板活化因子(血小板膜糖蛋白Ⅱb/Ⅲa受体、P选择素)和血管内皮活性标志物[血管性假血友病因子(von Willebrand factor,vWF)、同型半胱氨酸(homocysteine,HCY)、高敏C反应蛋白(high-sensitivity C-reactive protein,hsCRP)]的水平,应用SPSS 25.0软件进行统计学分析。结果LI组发病后1个月时和对照组糖蛋白Ⅱb/Ⅲa受体分别(2.84±1.00)%、(2.59±0.96)%,差异无统计学意义(P=0.065);P选择素分别为(3.05±0.63)%、(2.98±0.59)%,差异无统计学意义(P=0.419);vWF分别为(141.80±17.60)、(124.63±10.65)ng/mL,hsCRP分别为(5.53±1.37)、(2.17±0.55)mg/L,HCY分别为(18.76±4.07)、(15.81±2.63)mmol/L,差异均有统计学意义(P0.05)。结论慢性血小板活化可能在LI病理生理学中不发挥核心作用,内皮功能障碍可能是LI的病理机制之一。

关键词：血小板活化因子血管内皮活性标志物腔隙性脑梗死

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猴头菇杂粮风味酸奶的工艺研究

农产品加工 2021年第23期 49-51页

作者：陈瑞丽吴映明黄壹芳吴剑婷姚叙李敏云广东第二师范学院生物与食品工程学院广东广州510303

通过对猴头菇固体培养后的产物进行加工,研制出一种新型的食用菌杂粮风味酸奶。研究了纯牛奶与猴头菇玉米粉多糖提取液配比、薏仁粉添加量、蔗糖添加量、发酵时间4个单因素对感官评分的影响,通过正交试验确定最佳工艺条件为纯牛奶与提... 详细信息

通过对猴头菇固体培养后的产物进行加工,研制出一种新型的食用菌杂粮风味酸奶。研究了纯牛奶与猴头菇玉米粉多糖提取液配比、薏仁粉添加量、蔗糖添加量、发酵时间4个单因素对感官评分的影响,通过正交试验确定最佳工艺条件为纯牛奶与提取液配比75∶25,薏仁粉添加量3%,蔗糖添加量10%,发酵时间4.5 h。在此条件下,猴头菇杂粮风味酸奶品质最好,感官评分最高,可达91分。

关键词：猴头菇杂粮薏仁粉酸奶

Effect of periodic wide atmospheric pressure change on CO emission in closed goaf

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International Journal of Coal Science & Technology 2023年第4期10卷 139-150页

作者： Zhuangzhuang Shao Bo Tan ruili Hu Xiaozhen Song Yan Guo Tianze Li Shuhui Fu Chaohuan chen Haiyan Wang School of Emergency Management and Safety Engineering China University of Mining and Technology(Beijing)Beijing 100083China Security Department University of International Business and EconomicsBeijing 100029China School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China

Atmospheric pressure fuctuation is one of the most important factors afecting the climate environment and gas emission in the fre *** obtain the infuence rule of the surface atmospheric pressure change on the gas sampling and abnormal emission in the mine closed goaf,the No.1 coal mine in Dananhu was taken as the research *** Fourier transform and Fisher harmonic analysis and other statistical methods,the infuence of the periodic variation of atmospheric pressure on the gas leakage and outfow in the closed goaf was *** results showed that there were three atmospheric pressure periods of 15.2 d,1 d and 182.2 d,and the probability was greater than 95%.The time period with the highest number of atmospheric pressure peaks was 7:00–8:00,which accounted for 20.2%of total occurrence number in a *** the time periods with the highest number of atmospheric pressure trough were 2:00,15:00 and 16:00,accounting for 27.4%.The peak-to-trough transition time was mainly concentrated around 6 h,and the diurnal variation curve of atmospheric pressure was mainly *** atmospheric pressure change rate was mostly concentrated in 10–50 Pa/*** was determined that the distance that the gas sampling pipe was pre-laid into the inner side of the closed wall should be greater than 44.4 m,and the CO concentration and atmospheric pressure in the closed goaf were both periodic and negative with atmospheric *** research results have important guiding signifcance for the monitoring,early warning and environmental protection of the goaf.

关键词： Atmospheric pressure Periodic variation Closed goaf CO emission Coal mine

Spider web-like carbonized bacterial cellulose/MoSe_(2) nanocomposite with enhanced microwave attenuation performance and tunable absorption bands

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Nano Research 2021年第3期14卷 738-746页

作者： Zhengjian Xu Man He Yuming Zhou Shuangxi Nie Yongjuan Wang Yao Huo Yifan Kang ruili Wang Ran Xu Hao Peng Xi chen Jiangsu Optoelectronic Functional Materials and Engineering Laboratory School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control College of Light Industry and Food EngineeringGuangxi UniversityNanning530004China

It is essential to manufacture microwave absorbers with strong absorption as well as tunable absorption bands at a low filler ***,it remains challenging for pure biomass material to reach this goal without loading other ***_(2),as a transition metal chalcogenide with semiconductor properties,has emerged as a potential microwave absorber ***,bacterial cellulose(BC)-derived carbon nanofibers/MoSe_(2) nanocomposite was fabricated and phosphoric acid was used to dope phosphorus in BC,in which MoSe_(2) microspheres were dropped on the BC network like a dew-covered spider *** unique network structure enhances conductive loss and multiple reflections of the incident *** collocation of BC and MoSe_(2) is helpful to impedance match and introduces interfacial/dipolar polarization loss;moreover,the P-doping of BC helps to tune the absorption ***,the optimal reflection loss of undoped one reaches−53.33 dB with only 20 wt.%filler content,whose main absorption peaks focus on ***,after the P-doping of BC,the main absorption peaks move to Ku-band and the optimal reflection loss gets stronger(−66.84 dB)with the same filler *** absorption and tunable absorption bands can be realized,and thus wide frequency range is *** work is expected to enlighten future exploration of biomass carbon materials on high-performance microwave absorption materials.

关键词： bacterial cellulose MoSe_(2) network structure P-doped carbon tunable absorption band