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软件安全漏洞检测技术的思考

电子测试 2018年第2期29卷 70-70,83页

作者：潘正辉安谷科技股份有限公司江苏无锡214000

本文以软件安全漏洞检测技术作为研究核心,从静态检测技术与动态检测技术两个方面,对计算机软件的安全漏洞检测技术展开了详细的探讨,希望能为计算机软件安全漏洞的检测工作提供一定的理论参考。

关键词：计算机软件静态检测技术非执行栈

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试论车联网功能的发展现状和未来趋势

科技创新导报 2020年第23期17卷 252-253,256页

作者：潘正辉观致汽车上海研究院上海201105

依赖于快速更新的信息技术,车联网功能逐渐使行车发展为智能化水平,车联网功能提供的优质服务给人类出行带来了极大便利,本文首先分析了车联网功能的发展现状,接下来阐述了车联网功能的未来发展趋势,如未来的车联网功能可能会实现远程... 详细信息

依赖于快速更新的信息技术,车联网功能逐渐使行车发展为智能化水平,车联网功能提供的优质服务给人类出行带来了极大便利,本文首先分析了车联网功能的发展现状,接下来阐述了车联网功能的未来发展趋势,如未来的车联网功能可能会实现远程控制并提供更快捷、方便的线上服务,还可能会实现自动驾驶,缓解交通拥挤,提高安全性。

关键词：车联网功能物联网发展现状未来趋势远程控制

1.3 GHz 9-cell高性能超导腔高阶模耦合器电磁及热分析研究

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强激光与粒子束 2024年第7期36卷 62-68页

作者：王子晗潘卫民米正辉翟纪元贺斐思沙鹏王光伟刘铭中国科学院高能物理研究所北京100049 中国科学院粒子加速器物理与技术重点实验室北京100049 中国科学院大学北京100049

中国科学院高能物理研究所于2023年6月完成了高品质因数1.3 GHz超导加速模组研发,在国际上率先实现了中温退火高品质因数超导腔模组技术路线。模组中集成了八只经过中温退火工艺处理的1.3 GHz9-cell超导腔,在模组的测试过程中超导腔的... 详细信息

中国科学院高能物理研究所于2023年6月完成了高品质因数1.3 GHz超导加速模组研发,在国际上率先实现了中温退火高品质因数超导腔模组技术路线。模组中集成了八只经过中温退火工艺处理的1.3 GHz9-cell超导腔,在模组的测试过程中超导腔的高阶模耦合器温升异常,导致超导腔无法在高梯度下稳定工作。通过HFSS软件和CST软件中的微波仿真模块对高阶模耦合器进行电磁分析,再通过理论和Ansys Workbench软件对高阶模耦合器进行热仿真分析,并结合模组的高功率实验,找到了超导腔性能异常的原因,并对超导腔高阶模耦合器的冷却方式进行了进一步的优化,解决了模组中超导腔高梯度下的不稳定性。

关键词： 1.3 GHz 9-cell超导腔高阶模耦合器电磁分析稳态热分析

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香蕉漂浮育苗幼苗的生长及其生理特性

农业研究与应用 2021年第2期34卷 14-21页

作者：李东玲潘正辉林佳琦李辉冯斗李燕培禤维言广西大学农学院广西南宁530005

为了改良香蕉种苗二级苗的育苗方法,本文采用漂浮育苗技术对香蕉二级种苗培育的可行性进行了研究。采用84孔泡沫盘,以蛭石、木糠等基质材料作为支持物,结合营养液或在基质中添加控缓释肥(0.5~0.6 g/株)的供肥方式进行水培育苗,育苗营养... 详细信息

为了改良香蕉种苗二级苗的育苗方法,本文采用漂浮育苗技术对香蕉二级种苗培育的可行性进行了研究。采用84孔泡沫盘,以蛭石、木糠等基质材料作为支持物,结合营养液或在基质中添加控缓释肥(0.5~0.6 g/株)的供肥方式进行水培育苗,育苗营养液以清水(自来水)为对照,采用MS配方配置,按全量(MS)、半量(1/2 MS)和三分之一量(1/3 MS)浓度使用。在移栽后20~60 d内调查香蕉苗的生长状况并测定生理指标。结果发现,以木糠为基质,半量和三分之一量浓度的MS营养液水培,或者在木糠基质中直接添加控缓释肥(0.5~0.6 g/株)清水水培,移栽50 d后,苗高分别为39.31 cm、 34.06 cm和31.65 cm,绿叶数分别为6.8片、6.4片和7.7片,最上第二展开叶叶面积分别为98.39 cm2、82.62 cm2和87.14 cm2,达到出圃定植标准,香蕉苗素质优于其它处理,而且香蕉苗的生理特性如叶绿素、可溶性糖和蛋白质含量均高于其它处理;以蛭石作为水培基质和以木糠为基质加全量MS养分等处理的水培香蕉苗,生长状况不佳,移栽50天后苗高为9.96~23.91 cm、绿叶数为4.1~5.6片、植株最上第二片展开叶的叶面积为10.38~45.91 cm2,未达到出圃定植标准。本研究结果表明采用漂浮-水培育苗法进行香蕉苗育苗是完全可行的。香蕉漂浮水培育苗技术改良了目前香蕉二级种苗的繁育方式,与常规的营养袋基质育苗比较,其突出的技术优势是减少了香蕉苗接触土壤病菌的几率、管理更加简便,并且可以在可调控光、温条件的室内进行育苗,不受季节气候条件变化的影响。

关键词：香蕉漂浮育苗生长特性生理特性

重症监护病房急性自发性脑出血患者医院获得性肺炎危险因素及病原学分析

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中华临床感染病杂志 2017年第5期10卷 347-352页

作者：陆璇徐猛孟文晴潘正慧李程浩赵文静江苏省徐州医科大学麻醉学院 221004 江苏省徐州医科大学附属医院重症医学科 221002

目的分析重症监护病房（ICU）急性自发性脑出血（sICH）患者医院获得性肺炎（HAP）的危险因素及病原菌分布，为防治该类患者肺部感染提供理论依据。方法连续收集2015年1月至2017年2月入住ICU的sICH患者的临床资料，根据是否发生HAP分为... 详细信息

目的分析重症监护病房（ICU）急性自发性脑出血（sICH）患者医院获得性肺炎（HAP）的危险因素及病原菌分布，为防治该类患者肺部感染提供理论依据。方法连续收集2015年1月至2017年2月入住ICU的sICH患者的临床资料，根据是否发生HAP分为感染组及未感染组。采用多因素Logistic回归探讨HAP发生的易感因素，并对感染患者的病原菌分布和药敏试验进行分析。结果共有110例患者纳入研究，其中66例发生HAP，发生率为60.0%。多因素Logistic回归分析发现机械通气时间长（OR＝1.028, 95%CI 1.012～1.044, P〈0.01）、格拉斯哥昏迷评分（GCS）评分低（OR＝1.550, 95%CI 1.148～2.093, P〈0.01）、住院总时间长（OR＝1.131, 95%CI 1.046～1.224, P〈0.01）及基础疾病≥2种（OR＝9.793, 95%CI 1.012～1.044, P〈0.01）是HAP发生的独立危险因素，而高水平血浆白蛋白（OR＝0.897, 95%CI 0.811～0.992, P〈0.05）是预防HAP发生的保护因素。66例患者共分离出病原菌183株，居前4位的依次是鲍曼不动杆菌（28.96%，53/183）、肺炎克雷伯菌（15.85%，29/183）、铜绿假单胞菌（13.11%，24/183）和金黄色葡萄球菌（12.02%，22/183）。鲍曼不动杆菌、肺炎克雷伯菌和铜绿假单胞菌对大多数抗菌药物的耐药性较高，部分可达100.00%。金黄色葡萄球菌对大环内酯类、氟喹诺酮类和β-内酰胺类抗菌药均表现出较高的耐药性。结论入住ICU的sICH患者HAP发生率高，病原菌以革兰阴性菌为主。临床上应针对该类患者采取有效的防治措施，并减少耐药菌株的产生。

关键词：脑出血重症监护病房医院获得性肺炎病原菌分布危险因素

Medium-temperature baking of 1.3 GHz superconducting radio frequency single-cell cavity

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Radiation Detection Technology and Methods 2020年第4期4卷 507-512页

作者： Quan Zhou Fei-Si He Weimin pan Peng Sha zhenghui Mi Baiqi Liu Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Particle Acceleration Physics and Technology Chinese Academy of SciencesBeijing 100049China Center for Superconducting RF and Cryogenics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

Background A reliable and repeatable post-processing technology of improving the performance of 1.3 GHz superconducting radio frequency(SRF)cavities is one of the critical technologies for the ILC and XFEL and ERL *** Three 1.3 GHz single-cell cavities were fabricated and received a baking in temperature 330℃,while the interior of the cavity stayed in ultra-high vacuum(UHV).The cavities were also vertical-tested after electropolishing(EP)with 120℃48-h baking and with nitrogen doping separately for a *** The Q_(0) of 1.3 GHz single cavity after medium-temperature baking can be 2-3×10^(10) in the accelerating gradient range of 2-35 MV/m in the 2 K vertical test in ***,the outer surface oxidation of niobium cavity caused by baking will decrease the performance of the SRF *** Medium-temperature(250-400℃)baking on the 1.3 GHz single-cell cavity will improve its Q_(0) in 2 K vertical test compared with EP followed by 120℃48-h baking baseline and reach a similar level of nitrogen doping,and the quench field will lower to a typical range of 20-30 MV/***,the cavity performance is sensitive to the baking time and temperature,which indicates that a tremendous improvement can be made on the current treatment.

关键词： Medium-temperature baking 1.3 GHz single-cell cavity Nitrogen doping

Particulate aggregation through a modulated annular one-dimensional acoustic field at resonant frequencies

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Particuology 2021年第4期19卷 82-94页

作者： zhenghui Qiao Xiaojun pan Shaohua Liang Xiaolong Bi Juan Wang Wei Xie Kang Wang Yanwen Wang Jun Fang Xuefei Zhu Shaoxin Sun Shaohui Li College of Energy and Power Engineering Nanjing Institute of TechnologyNanjing 211167China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China

The visualization and analysis of a novel acoustic-particulate system is the objective of this study. The system is composed of rice-husk fired smoke particulates (36.7 nm-840 μm) and one annular resonant circular-tube waveguide contrarily coupled with two sound sources. The collective interaction behavior process of smoke particulates in an inhomogeneous acoustic field is displayed during an experiment and a simulation. The result shows that the aggregation and fragmentation of particles under a change in resonant frequencies and sound pressure amplitude is extremely complex. This complex process consists of dynamically tuning the particle characteristics to attain stripes shaped like thin-films/umbrellas and clusters with volume-change/fragmentation. The balanced modulation of the acoustic radiation force and secondary radiation force to alter the particle characteristics (size and stack density) is verified to be the control mechanism of the particle system. The intermediate variable of the process control is the acoustic contrast factor (Φ) related to the physical characteristics of the growing particulates. The value plus-minus alternation of Φ results in different particulate processes. This study can enhance the application of aerodynamic acoustic-particulate-fluid systems for environment protection, energy fuel conversion, and industrial production.

关键词： Acoustic aggregation Porous particulates Secondary radiation force Acoustic radiation force Stripe pattern Inhomogeneous field

Diversity of metabolite accumulation patterns in inner and outer seed coats of pomegranate:exploring their relationship with genetic mechanisms of seed coat development

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Horticulture Research 2020年第1期7卷 2634-2647页

作者： Gaihua Qin Chunyan Liu Jiyu Li Yongjie Qi zhenghui Gao Xiaoling Zhang Xingkai Yi Haifa pan Ray Ming Yiliu Xu Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crops Anhui ProvinceHorticultural Research InstituteAnhui Academy of Agricultural SciencesHefei 230001China Key Laboratory of Fruit Quality and Development Biology Anhui Academy of Agricultural SciencesHefei 230001China FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology Fujian Agriculture and Forestry UniversityFuzhou 350002China Department of Plant Biology University of Illinois at Urbana-ChampaignUrbanaIL 61822USA

The expanded outer seed coat and the rigid inner seed coat of pomegranate seeds,both affect the sensory qualities of the fruit and its acceptability to *** seeds are also an appealing model for the study of seed coat differentiation and *** conducted nontarget metabolic profiling to detect metabolites that contribute to the morphological differentiation of the seed coats along with transcriptomic profiling to unravel the genetic mechanisms underlying this *** of metabolites in the lignin biosynthetic pathway accumulating in seed coat layers at different developmental stages revealed that monolignols,including coniferyl alcohol and sinapyl alcohol,greatly accumulated in inner seed coats and monolignol glucosides greatly accumulated in outer seed *** expression of genes involved in monolignol biosynthesis and transport might explain the spatial patterns of biosynthesis and accumulation of these *** constituents and flavonoids in particular accumulated in the inner seed coat,and candidate genes that might be involved in their accumulation were also *** encoding transcription factors regulating monolignol,cellulose,and hemicellulose metabolism were chosen by coexpression *** results provide insights into metabolic factors influencing seed coat differentiation and a reference for studying seed coat developmental biology and pomegranate genetic improvement.

关键词： outer mechanisms alcohol

Neural progenitor cells from human induced pluripotent stem cells generated less autogenous immune response

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Science China(Life Sciences) 2014年第2期57卷 162-170页

作者： HUANG Ke LIU PengFei LI Xiang CHEN ShuBin WANG LiHui QIN Li SU zhenghui HUANG WenHao LIU JuLi JIA Bei LIU Jie CAI JingLei PEI DuanQing pan GuangJin Key Laboratory of Regenerative Biology Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and HealthChinese Academy of Sciences Department of Regeneration Medicine School of Pharmaceutical Science Jilin University Laboratory of Pathogen Biology State Key Laboratory of Respiratory Disease Department of Obstetrics and Gynecology Nanfang Hospital Southern Medical University

The breakthrough development of induced pluripotent stem cells(iPSCs)raises the prospect of patient-specific treatment for many diseases through the replacement of affected ***,whether iPSC-derived functional cell lineages generate a deleterious immune response upon auto-transplantation remains *** this study,we differentiated five human iPSC lines from skin fibroblasts and urine cells into neural progenitor cells(NPCs)and analyzed their *** co-culture with autogenous peripheral blood mononuclear cells(PBMCs),we showed that both somatic cells and iPSC-derived NPCs do not stimulate significant autogenous PBMC ***,a significant immune reaction was detected when these cells were co-cultured with allogenous ***,no significant expression of perforin or granzyme B was detected following stimulation of autogenous immune effector cells(CD3+CD8 T cells,CD3+CD8+T cells or CD3 CD56+NK cells)by NPCs in both PBMC and T cell co-culture *** results suggest that human iPSC-derived NPCs may not initiate an immune response in autogenous transplants,and thus set a base for further preclinical evaluation of human iPSCs.

关键词： induced pluripotent stem cells immunogenicity iPSC-derived neural progenitor cells