Standardization Approach for Integration of Informatization and Industrialization Interview with Li Jun Informatization Research and Promotion Center ETIRI, MIIT

The fasting evolving information technology has driven the global industry into a new period of development where integration of informatization and industrialization became the focus of all countries around the world,and a key trend for thousands of enterprises to follow.This now plays a decisive role on the evolution of world’s industrial development as well as the international competition.

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were studied.To illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically calculated.The effect of precipitate ripening on the Goss texture and magnetic property was investigated.Data indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate increased.Secondary recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}<227>oriented grains growing abnormally and a magnetic induction intensity of 1.90T.Furthermore,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss texture.However,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 T.At a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this study.The heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

Unified Bandwidth Scheduling in Centralized Fixed Access Network(C-FAN)

Time Division Multiplexing-Passive Optical Networks(TDM-PONs)play a vital role in Fiberto-the-Home(FTTH)deployments.To improve the service quality of home networks,FTTH is expanding to the Fiber-to-the-Room(FTTR)scenario,where fibers are deployed to connect individual rooms(i.e.,Fiber In-premises Network(FIN)in the ITU-T G.9940 standard).In this scenario,a point-to-multipoint(P2MP)fiber network is deployed as FTTR FIN to offer gigabit access to each room,which forms a two-tier cascaded network together with the FTTH segment.To optimize the capacity utilization of the cascaded network and reduce the overall system cost,a centralized architecture,known as Centralized Fixed Access Network(C-FAN),has been introduced.C-FAN centralizes the medium access control(MAC)modules of both the FTTH and FTTR networks at the FTTH’s Optical Line Terminal(OLT)for unified control and management of the cascaded network.We develop a unified bandwidth scheduling protocol by extending the ITU-T PON standard for both the upstream and downstream directions of C-FAN.We also propose a unified dynamic bandwidth allocation(UDBA)algorithm for efficient bandwidth allocation for multiple traffic flows in the two-tier cascaded network.Simulations are conducted to evaluate the performance of the proposed control protocol and the UDBA algorithm.The results show that,in comparison to the conventional DBA algorithm,the UDBA algorithm can utilize upstream bandwidth more efficiently to reduce packet delay and loss,without adversely impacting downstream transmission performance.

Analysis and Countermeasures of a Lightning Accident Suffered by Hangjun 12

In the evening of October 17, 2012, the vessel Hangjun 12 of Changhang Wuhan Engineering Bureau was struck by lightning when working in Malaysia red ridge channel. In the lightning accident, the weather instrument of the ship was destroyed by the lightning to the ground, and the electronic information equipment in the vessel was influenced by induction lightning, which had damaged the electronic information system and elec- trical equipment. According to the Code for Design Protection of Structures against Lightning （ GB 50057-2010）, this lightning accident suffered by Hangjun 12 was analyzed theoretically from aspects of the protection scope of the two lightning reds, main measures against lightning electromag- netic impulse, and specific reasons for the lightning accident. Finally, some measures to prevent the ship from being struck by lightning were put forward, such as improving countermeasures against direct lightning flash, enhancing equipotential bonding and shielding measures and so forth.

基于InfoWorks ICM模型的城市小区LID组合方案成本效益研究

针对低影响开发(LID)雨水系统建设中存在成本与效益难以平衡的问题,选取甘肃省天水市某居住小区为研究对象,构建InfoWorks ICM一、二维耦合模型,以不同LID组合方案在不同降雨重现期下的径流总量控制率、径流峰值削减率、积水面积削减率、积水量削减率、固体悬浮物(SS)削减率、化学需氧量(COD)削减率为效益表征量,结合LID设施的生命周期成本定量分析成本效益。结果表明:包含绿色屋顶的LID组合方案成本效益偏低,但对于高重现期降雨具有较强的适应能力,更适用于暴雨频发地区;LID组合方案对于积水面积削减率与积水量削减率的成本效益较高,能有效缓解内涝积水,对于COD削减率的成本效益较低,需进一步优化;雨水桶+生物滞留设施+透水铺装作为总成本效益最高的方案,更适用于研究区域LID雨水系统的建设。研究成果对LID雨水系统的优化设计具有重要参考意义。

面向精密实验的飞秒激光精密加工技术研究进展

飞秒激光精密加工技术具备极短脉冲宽度避免或缓解热效应、极高峰值功率密度适用于任意固体材料、极小焦斑尺寸实现微区精准去除或改性等三个方面的特性,满足精密诊断/测量实验涉及的各类难加工及特种材料的安全精密加工需求。高稳定性高重复频率飞秒激光器的应用,弥补了低重复频率飞秒激光难以实现高速扫描的不足,这为精密实验所需各类精密样品/样件的高效精密加工提供了重要能量源。以中国工程物理研究院各研究所精密实验对精密样品的安全高效精密加工需求为切入点,分别以激光X射线精密靶材及结构、炸药材料微结构、超硬材料复合折射透镜结构、微型探头光纤精密固定结构、太赫兹滤波器核心结构等典型应用场景为例,介绍了高重频飞秒激光精密加工技术在难加工材料和特种材料安全高效精密加工方面的研究进展。

梁式桥抗震韧性评估方法:Ⅰ.基于专家意见的构件震后功能恢复模型

梁式桥是中国交通路网中最普遍的桥型,建立其抗震韧性评估方法是“韧性城市”国家战略顺利实施的必然需求,但其中至关重要的梁式桥各构件震后功能恢复模型尚未建立。震后功能恢复模型表征了结构在遭受地震后使用功能损失-保持-恢复的过程。为填补这一空白,该文第一部分采用专家意见调研的方法,构建了梁式桥主要受力构件(墩柱、主梁、支座、基础、桥台)和次要受力构件(挡块、伸缩缝)的震后功能恢复模型。首先,系统地定义了各构件的多级损伤状态和性能指标;然后,设计了调研问卷,面向全国各地124位桥梁设计、科研、施工、检测、养护、加固领域的专家,征询各构件不同损伤状态下的桥梁震后通行决策、残余通行功能、决策时间、构件修复策略与时间、以及构件修复期间桥梁残余通行功能;最后,通过对调研结果的统计分析,建立了梁式桥各构件的震后功能恢复模型。该文第二部分将利用该模型对我国量大面广的板式支座梁式桥开展抗震韧性评估研究。

油茶花苞采集机械手的设计与试验

丘陵地区油茶林地众多,油茶花苞采集暂无机械化设备,故设计了一款六自由度的油茶花苞采集机械手。通过油茶花苞生物学特性分析,使用旋扭式末端执行器可以实现油茶花苞的高效采集,采净率为90%。通过机械手工作空间分析,确定了机械手的尺寸,并将末端执行器搭载到机械手上进行了油茶林田间试验。试验结果表明:搭载了旋扭式末端执行器六自由度机械手,可以到达采摘区间的边界位置,末端在x、y、z方向的最大偏差分别为3.4、3.3、3.4 cm,为油茶花苞智能化采集提供了依据。

高等教育数字化质量评估:基于经合组织的经验

高等教育数字化转型已成为全球教育改革的趋势,如何评估其转型效果是当前各国和国际组织关注的焦点。经合组织结合成员国面临的阻障和前期开展的探索,在以“数字化准备、数字化实践和数字化绩效”为闭合链的质量评估框架基础上,研制了包含“计划与调整、实施、监控”三个阶段的高等教育数字化质量评估标准,从发展战略、物质基础、多方协同、教学质量、数字素养、外部支持、监测程序、效果反馈八个方面为高等教育数字化质量评估提供了系统、权威的操作指南和工具包。经合组织的评估标准是一个覆盖全过程、融通多层级、包含多要素的立体化评估体系,体现了“结构上进阶发展、内容上全面整合、运行上自我驱动”的特征,不仅有助于各方决策者全面审视高等教育数字化转型过程中的需求、挑战、风险和隐忧,同时也为高等教育机构切实提高数字化质量提供了极具操作性的策略,为寻找教育数字化转型的突破口贡献了新方案。我国可借鉴经合组织经验,着力构建一个在研发思路上关照进阶性和发展性、在内容体系上体现全面性和适用性、在目标导向上凸显诊断性和驱动性的评估标准,以进一步引导中国高等教育数字化转型的进路。

基于MICP技术的固化黏土抗侵蚀性能研究

近年来,微生物诱导碳酸钙沉积(MICP)技术被应用于表层土体的加固处理,以提升土体的抗侵蚀能力。采用新型的单相法和传统的两相法对黏性土表层进行MICP处理,分析了环境pH值和胶结液浓度对MICP反应过程的影响,并对经过不同处理次数的土样进行冲刷试验,观察并记录冲刷试验过程中土样的质量变化,以此评价2种加固方法的效果。结果表明:采用MICP技术加固后,土壤颗粒之间形成了有效的胶结;使用单相法加固的土样中碳酸盐生成量少于两相法,但土体整体的水稳性高于两相法;经过单相法和两相法加固处理5次后,试样被冲刷40 s后的侵蚀量分别为0.43 g和0.11 g,而相同条件下未加固试样的侵蚀量为54.63 g,加固后的土样经过24 h的冲刷试验后表面几乎没有被破坏,显示采用MICP技术加固后土样的抗侵蚀能力远大于未处理土样。

Origin of Overpressure and its Effect on Hydrocarbon Enrichment in the Hinterland of Junggar Basin,NW China

Overpressure is widely developed in deep petroliferous strata in the hinterland of the Junggar Basin.However,a comprehensive understanding of its origin and effect on hydrocarbon distribution and enrichment remains lacking.In this study,we employ five empirical methods and comprehensive geological analysis to identify the origin of overpressure,and uncover the effect of overpressure on hydrocarbon enrichment.The results indicate that disequilibrium compaction is not a significant factor in overpressure generation.Instead,hydrocarbon generation,pressure transfer and diagenesis are the primary causes.The empirical methods support this conclusion.There is a positive correlation between overpressure intensity and source rock thickness and maturity.Notably,widespread cross-formational migration of hydrocarbon bearing fluid occurred,with sandstone overpressure exceeding that of adjacent shale in non-source strata.Furthermore,there is a distinct transformation from smectite to illite near the top of overpressure.Hydrocarbon generation pressurization and pressure transfer significantly effect hydrocarbon enrichment.The overpressure caused by hydrocarbon generation drives hydrocarbon migration and accumulation,establishing an optimal energy configuration between reservoir and cap rock.Faults play a crucial role in hydrocarbon vertical migration and pressure relief.The overpressure in reservoirs can reduce the porosity and permeability thresholds and enhance the charging capacity of oil and gas.

特丰典型年环太湖江苏段出入湖污染物通量分析

基于环太湖江苏段主要出入湖河道2008—2018年水量、水质同步监测数据,选取特丰典型年2016年,采用出入湖河道污染物通量估算方法对出入太湖的河道污染物通量进行了估算,解析了出入湖通量与水量关系及时空变化特征。结果表明:特丰年份,汛期污染物入湖通量约占全年入湖通量的1/2,出入湖污染物通量主要受水量影响,污染物滞留率低于多年平均值。入湖污染物90%来自湖西区,入湖河道污染物通量贡献最大的是城东港。研究结果为太湖地区污染物总量控制及新一轮太湖综合治理提供了技术支撑。

阶段性症状管理对脓毒症休克ICU患者的效果评价

目的探讨阶段性症状管理对脓毒症休克重症监护室(ICU)患者康复进程、循环功能、氧合功能、感染状况的影响。方法选取南阳市第一人民医院2021年11月—2023年3月收治的180例进入ICU救治的脓毒症休克患者为研究对象,按照组间基本特征具有可比性的原则分为对照组和观察组,每组90例。在ICU急救处理基础上,对照组予以常规护理管理,观察组予以阶段性症状管理。比较两组康复进程、循环功能[心率(HR)、平均动脉压(MAP)]、氧合功能[中心静脉血氧饱和度(ScvO_(2))、动脉血氧分压(PaO_(2))]、感染状况[血小板计数(PLT)、白细胞计数(WBC)、血乳酸(Lac)]水平和并发症发生率。结果护理干预后,观察组患者机械通气、ICU停留及住院时间短于对照组,差异有统计学意义(P<0.05)。护理干预前,两组患者MAP、ScvO_(2)、PaO_(2)、HR水平比较,差异无统计学意义(P>0.05);护理干预后,观察组患者MAP、ScvO_(2)、PaO_(2)水平高于对照组,HR低于对照组,差异有统计学意义(P<0.05)。护理干预前,两组患者PLT、WBC、Lac比较,差异无统计学意义(P>0.05);护理干预后,观察组患者PLT、WBC、Lac低于对照组,差异有统计学意义(P<0.05)。护理干预后,观察组患者并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论阶段性症状管理可改善脓毒症休克患者机体微循环,减轻感染程度,改善氧合功能,减少并发症的发生率,加快康复进程,促进患者康复。

依托咪酯调控miR-204-5p/HOXC8轴对胃癌细胞增殖、凋亡及侵袭的影响

目的探讨依托咪酯(Eto)调节微小RNA(miR)-204-5p/同源盒基因C8(HOXC8)轴对人胃癌细胞增殖、凋亡及侵袭的影响。方法2023年4月—2024年4月于武汉科技大学实验室进行实验,将胃癌细胞MKN45分为对照(Ctrl)组、低剂量Eto组(Eto-L,5μmol/L)、中剂量Eto组(Eto-M,10μmol/L)、高剂量Eto组(Eto-H,20μmol/L)、Eto-H+miR-inhibitor-NC、Eto-H+miR-204-5p inhibitor组。CCK-8法、集落形成实验检测细胞增殖情况,流式细胞术检测MKN45细胞凋亡情况,Transwell实验检测细胞侵袭能力;qRT-PCR检测细胞中miR-204-5p和HOXC8 mRNA表达水平;双荧光素酶实验检测miR-204-5p和HOXC8之间的靶向关系。结果与Ctrl组比较,Eto-L组、Eto-M组、Eto-H组、Eto-H+miR-inhibitor-NC组、Eto-H+miR-204-5p inhibitor组MKN45细胞存活率、集落形成率、细胞侵入率、HOXC8 mRNA水平均显著降低(F/P=33.391/<0.001、29.646/<0.001、44.814/<0.001、45.485/<0.001),细胞凋亡率和miR-204-5p水平显著升高(F/P=78.091/<0.001、22.665/<0.001);与Eto-H+miR-inhibitor-NC组比较,Eto-H+miR-204-5p inhibitor组MKN45细胞存活率、集落形成率、细胞侵入率、HOXC8 mRNA水平均显著升高(q/P=8.099/<0.001、7.587/<0.001、7.768/<0.001、11.162/<0.001),细胞凋亡率和miR-204-5p水平显著降低(q/P=10.254/<0.001、8.596/<0.001);与HOXC8-WT和miR-NC共转染细胞比较,HOXC8-WT和miR-204-5p mimic共转染的MKN45细胞中相对荧光酶活性显著降低(t/P=5.770/<0.001)。结论Eto可能通过上调miR-204-5p、下调HOXC8,减弱胃癌细胞MKN45增殖和侵袭能力,促进细胞凋亡。

Effects of Yigan Capsule on the expression of HMGB1,RAGE and NF-κB protein in rats with drug-induced liver injury

Objective:To study the effect of Yigan capsule on the expression of high mobility group protein B1(HMGB1),nuclear factor-B(NF-κB)and receptor for advanced glycation end products(RAGE)in anti-tuberculosis drug-induced liver injury(ATB-DILI),and to explore its protective effect and mechanism on ATB-DILI,so as to provide experimental basis for the clinical application of Yigan capsule.Methods:Twenty-four rats were divided into two groups.Except for the blank group(n=6),the other 18 rats were given isoniazid(INH)+rifampicin(RFP)(50 mg/kg.d)for 4 weeks.Then 18 rats were randomly divided into three groups(model group,low dose group of Yigan capsule and high dose group of Yigan capsule)according to 6 rats in each group.The blank group and the model group were given 0.9%sodium chloride solution by intragastric administration.The low dose group of Yigan capsule was 0.468 g/kg,and the high dose group of Yigan capsule was 1.872 g/kg[1].After 4 weeks,the pathological changes of liver were observed by HE staining.The contents of ALT,AST,ALP,γ-GT and TBIL were detected.The expression of HMGB1,NF-κBp65 and RAGE protein was detected by IHC.The expression levels of HMGB1,NF-κBp65,RAGE,TNF-αand IL-1βwere detected by WB.Result:HE staining showed that the structure of the liver in the model group was disordered,the liver cells showed swelling and fusion,the number of inflammatory cells increased and accompanied by punctate necrosis,while the above pathological changes in each treatment group of Yigan capsule were significantly improved.The contents of ALT,AST,ALP,γ-GT and TBIL in the model group were higher than those in the blank group(P<0.05).The contents of ALT,AST,ALP,γ-GT and TBIL in each treatment group were significantly lower than those in the model group(P<0.05).Compared with the blank group,the expression levels of TNF-αand IL-1βin the model group were increased(P<0.05),and the expression levels of HMGB1,NF-κBp65 and RAGE were increased(P<0.05).Compared with the model group,the expression levels of TNF-αand IL-1βin each treatment group of Yigan capsule decreased(P<0.05),and the expression of HMGB1,NF-κBp65 and RAGE decreased(P<0.05).Conclusion:Yigan capsule may inhibit the secretion of inflammatory factors through HMGB1/RAGE/NF-κBp65 signaling pathway,thus protecting ATB-DILI.

早发性结直肠癌患者心理痛苦轨迹的变化及其影响因素研究

目的探讨早发性结直肠癌患者心理痛苦轨迹变化并分析其影响因素。方法选取2022年3月至2024年3月期间在河南科技大学第一附属医院接受治疗的113例早发性结直肠癌患者作为调查对象。采用心理痛苦温度计(DT)评估患者心理痛苦水平,观察患者入院当日(T1)、出院当日(T2)、出院后1个月(T3)、出院后3个月(T4)和出院后6个月(T5)五个时间点的心理痛苦水平变化。采用Pearson相关系数分析患者在T1~T5任意2个时间点DT评分的相关性。运用潜类别增长模型(LCGA)识别不同患者的心理痛苦轨迹。收集所有患者的一般资料,采用单因素和多因素Logistic回归分析影响早发性结直肠癌患者心理痛苦轨迹变化的因素。结果早发性结直肠癌患者T1~T5时间点的DT评分分别为(4.91±1.11)分、(4.43±1.02)分、(3.68±0.84)分、(3.12±0.62)分、(2.51±0.48)分,持续下降,差异均有统计学意义(P<0.05),且任意两个时间点的DT评分均呈正相关(r>0,P<0.05)。经过计算识别出3条心理痛苦变化轨迹,即持续高痛苦组8例、心理痛苦降低组32例和持续低痛苦组73例。单因素分析结果显示,不同心理痛苦轨迹类别患者的结直肠癌家族史、性格特质、家庭支持度比较,差异均有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,有结直肠癌家族史、低家庭支持度是早发性结直肠癌患者心理痛苦轨迹类别倾向高心理痛苦的危险因素,性格特质为胆汁质及多血质是倾向高心理痛苦的保护因素(P<0.05)。结论早发性结直肠癌患者在治疗期间的心理痛苦情况呈现出不同的演变轨迹,大部分患者能较好地适应,无需特别干预。特定的性格特质、低家庭支持度和有家族病史的患者更可能出现较高水平的心理痛苦,临床应予以针对性干预。

基于深度学习的水声信道估计技术

在水声通信中,传统的正交频分复用(Orthogonal Frequency Division Multiplexing, OFDM)系统需要大量导频数量和循环前缀以维持系统性能,严重浪费有限的频域资源。因此,利用深度学习辅助OFDM恢复失真的传输数据。具体地讲,利用改进的残差块提取和双向记忆接收信号。将自归一化网络(Self-Normalizing Network, SNN)与注意力机制结合,有效分配信道权重,以便系统更有效地利用信道资源,最小化信号失真。使用深度神经网络(Deep Neural Network, DNN)实现接收信号的分类,以准确地恢复接收信号。提出的ICANet(Improved Residual Network, Convolutional Neural Network and Attention Mechanism Self-Normalizing Network)模型可应用于由Bellhop软件生成的水声环境。仿真结果证明,与传统技术中的最小二乘法(Least Square, LS)以及现有的深度学习模型相比,所提出的模型在循环前缀受限的情况下可达到更低的误码率。

Contributing to Better Development of the Modern Civilization of Chinese Nation Celebrating the Opening of the New Museum of the Yin Xu Site

The discovery of Yin Xu has turned the history of the Shang Dynasty into credible history,continuing the trend of integrating civilizations from all directions for over a thousand years,and initiating a pattern of continuous,diversified,and unified civilization for more than three thousand years.With the Yin Xu Site as the fulcrum,it constructs the spatialtemporal system of Xia-Shang archaeology and culture.

Research on the Path of Integrating Party Construction Aesthetics into Ideological and Political Education in Colleges and Universities

Party construction aesthetics is a valuable aesthetic resource formed in the practical exploration of rural revitalization,and it has logical compatibility with ideological and political education in terms of concepts,goals,tasks,etc.At present,comprehensive deepening reform has entered a deep-water zone,and some erroneous value orientations such as utilitarianism,emptiness,and liberalization are common in colleges and universities,and ideological and political education is caught in a new round of difficulties.As the main position of ideological and political education,colleges and universities should further use party construction aesthetics to strengthen and improve ideological and political education,adhere to the carrier of aesthetic education,carry out diversified integrated education,broaden the ideological and political practical teaching system,build a long-term mechanism for collaborative education of ideological and political education and party construction aesthetics,and fully integrate party construction aesthetics into ideological and political education in colleges and universities.

VARIAN Eclipse治疗计划中PBC和AAA算法在直肠癌调强放疗中的剂量学研究比较

目的比较VARIAN Eclipse计划系统中笔形束卷积(PBC)和各向异性(AAA)算法在直肠癌调强放疗(IMAT)中的剂量学差异,并进行剂量验证。方法随机选取20例直肠癌放疗患者,并在VARIAN Eclipse系统中分别采用PBC算法和AAA算法设计IMRT治疗计划,并利用PTW 729二维剂量验证系统成相应的验证计划,比较靶区及危及器官(OARs)的剂量学参数差异。结果 2种算法模型下,都能满足临床要求,但两者对靶区和OARs的差异影响是比较明显的。对临床靶区(CTV)和计划靶区(PTV)而言,AAA算法模型下的D2%、D5%、D50%、D95%、D98%、Dmean较PBC算法模型更高(P均<0. 05),且CTV的剂量适形度指数和PTV的剂量均匀性指数更好(P均<0. 05);从保护OARs的角度而言,PBC算法模型条件下的小肠Dmax、脊髓Dmax和膀胱D50%较AAA算法模型更低(P均<0. 05);剂量验证中,对整个计划而言,2种算法模型下的γ通过率均能达到95%,都能达满足临床要求(P> 0. 05)。结论对于基于Eclipse系统的直肠癌IMRT计划而言,AAA算法整体上能获得更好的靶区剂量分布,更有利于肿瘤的治疗,但PBC算法却更能保护OARs,降低放疗不良反应。