数据驱动的企业多层竞争网络构建与态势分析

针对传统竞争情报研究方法主观性强、时效低、成本高的困境,提出一种能够在复杂多变的竞争环境中快速感知企业竞争态势的多层网络模型。本文依托价值链识别企业关键经营活动,首先构建多维视角分析模型;其次,基于替代性的方法计算相互间竞争强度,构建企业间的单层竞争网络;最后,依据多层网络间的内在价值链联系,构建企业多层竞争网络,形成企业竞争态势模型,并选取国内新能源汽车作为应用案例,系统验证了模型的有效性。

济阳坳陷古近系层序界面构建样式、分布特征及其成因动力学分析

受幕式构造运动的控制,济阳坳陷古近系发育多个级次的层序界面,从下到上主要发育Tr、T7、T6’、T6、T4、T2’、T2、T1’、T1等。根据层序界面上下接触组合关系以及层序界面的定义,笔者首次将济阳坳陷古近系层序界面划分为6种成因构建样式:截超型、截平型、平超型、顶超型、平行型和整合型。以地层—岩性圈闭较为发育的T6’和T2’为例,分析了造成层序界面构建样式差异性的动力学因素,认为:断层活动的迁移性与活动时间和活动强度的差异性控制层序界面构建样式的变化;构造沉降中心的迁移性和构造沉降幅度的差异性控制层序界面构建样式的变化。分析这种差异性及其界面动力学变化成因,对于研究济阳坳陷古近系在不同层序界面构建样式上下寻找地层—岩性圈闭具有重要的指导意义。

知识资源的多层构建模式

目前,虽然知识资源日益丰富,但是在可靠性、深入挖掘和系统性、启示性等方面仍存在着一些问题。知识资源多层构建模式整合各种类型的知识资源,通过过滤、评价、提炼和整合,构建8层次的知识资源系统,实现知识资源的系统整理、深入挖掘和有机组织,促进知识的有效利用、不断增值和持续创新。

陕北矿区耕作层构建技术--以陕西省神木县孙家岔镇排界村土地开发项目为例

陕北矿区土地污损浪费严重,利用土体有机重构方法对试验矿区耕作层进行构建,通过土地整治工程措施建设农田,实现生态恢复。以陕西省神木县孙家岔镇排界村土地开发项目为例,系统阐述矿区耕作层构建技术的推广实施,对陕北矿区治理有参考意义。

低效利用园地开发新增耕地项目耕作层构建研究——以铜川市耀州区某土地整治项目为例

面对日益匮乏的补充耕地后备资源,以及社会建设的不断扩大,耕地占补平衡压力越来越大。根据原国土资源部《关于改进管理方式切实落实耕地占补平衡的通知》等文件精神,园地可纳入土地整治范围,新增耕地用于占补平衡。本文以铜川市耀州区某土地整治项目为例,研究低效利用园地开发新增耕地过程中耕作层构建的问题。

氮肥对夏玉米群体构建及光合特性的影响

以郑单958为材料,研究不同施肥时期对穗位上平均叶夹角、叶向值、叶面积指数等植株冠层形态指标与叶片净光合速率、叶绿素SPAD值等光合性能的影响,是通过氮肥调控,构建高效冠层。结果表明:施氮量为180 kg/hm2时氮肥一次性基施的处理和施氮量为75 kg/hm2时氮肥8叶展一次性施入的处理穗位上叶夹角较小,茎粗相对适中,叶向值较大,吐丝期和灌浆中期单株叶面积较大,叶面积指数发展动态合理,符合高产玉米植株形态特征,同时叶片SPAD值较大,并且在灌浆中期中上层叶片净光合速率下降较少。说明施肥过早或过晚均不利于冠层结构的优化从而影响植株的光合性能。

济阳坳陷古近系层序界面控制下的岩性圈闭有利区带预测——以T_6'界面为例

从层序界面构建样式出发,将济阳坳陷古近系层序界面划分为6种成因构建样式:截超型、截平型、平超型、顶超型、平行型和整合型。以济阳坳陷古近系T6'界面为例,采用"六因素法"(界面变化成因动力学、层序界面控砂、储集砂体物性、生排烃、沉积环境和层序界面控藏),建立岩性圈闭成因模式;并对该层序界面构建样式控制下的岩性圈闭有利区带进行了预测。应用表明,该方法可进一步提高预测的准确性,提升勘探部署的能力与水平。

数字孪生系统构架技术在恩施烟草标准化应用

本文以数字孪生系统构架技术在我国汽车制造、钢铁冶炼、水务水业、饮料、白酒酿制、烟草科研、烟草机械制造行业的构建现状为实例,探析数字孪生系统构架技术在以恩施烟草复烤加工、卷烟生产、卷烟市场营销、烟叶生产收购为构成单元的标准化应用。

SRNF复合膜耐溶剂性能增强研究现状

耐溶剂纳滤(SRNF)是近年来高速发展的一项新型纳滤分离技术,主要用于有机溶剂的分离与纯化,涉及制药、催化剂再生、油和多种工业化学品的处理等领域。对耐溶剂纳滤膜性能增强方法(化学交联、有机-无机杂化和构建中间层)进行了综述与比较,总结了该研究领域现阶段面临的挑战与问题,以期为未来设计和制造用于有机溶剂处理的纳滤膜提供一些启发性的信息。

多机制优化的模拟试验台数据流实时迁移研究

航空发动机高空模拟试验作为检验航空发动机性能的重要手段,其试验流程中采集的各传感器测点数据极为重要与珍贵。为了使数据信息的展示更为直观并且更深入挖掘数据潜在的价值,提出基于多框架集成的航空发动机高空模拟试验台数据流实时迁移及可视化技术。首先,利用MyBatis-Plus自动视图层构建可视化技术将存储于底层历史数据库中的信息直观地展示于Vue框架的浏览器端表结构空间中,方便试验员查看分析;然后利用基于GateWay限流机制的JDBC接口融合全量/增量和基于负载均衡机制的MyBatis框架融合多线程并行传输流的数据流迁移技术,将历史数据库中可供后续算法分析利用的重要数据信息同步至本地数据库中;最后,利用Vue框架的数据流前端监控界面,验证数据可视化展示的直观性、完整性、有效性和数据流同步的实时性。

南堡凹陷火山活动与裂陷旋回

南堡凹陷原生岩浆的Mg’值大部分分布在 0 6 5～ 0 75之间 ;稀土和微量元素中不相容元素富集、相容元素亏损。由此说明该区火山岩受控于上地幔源岩的部分熔融作用。伸展裂谷型盆地的构造层序由下而上一般由底部粗粒层序组、下部含火山岩层序组、中部深水层序组和上部充填层序组组成 ,南堡凹陷据此可划分出 6个构造层序 ,其中第三、四构造层序控制了南堡凹陷两期主要的含油气系统分布。南堡凹陷盆地形成机制主要与地幔上涌作用有关 。

Probabilistic method and its application for evaluating carbonation life of newly-built concrete structures

In order to evaluate the carbonation life of newly-built concrete structures,two kinds of nondestructive methods are adopted to test the thickness of the concrete cover and the ultrasonic velocity of two newly-built tunnel structures.Simultaneously a probabilistic method is proposed based on the relationship between the accelerated carbonation rate and the ultrasonic velocity.This proposed method is applied to evaluate the carbonation related lives of two newly-built tunnels and the results indicate that even under nearly the same environment and CO2 combining conditions,there exits a big difference in the probabilistic carbonation lives between the two tunnels;i.e.,the probabilistic lives of Tunnel A and Tunnel B are 94.0% and 82.3% and the corresponding maximum discrepancies are 11.6% and 27.0%,respectively.Thus,it can be concluded that the scattered quality of the concrete cover is attributed to the differences in construction technique,which eventually leads to the diversity in the evaluated probabilistic carbonation lives of the two tunnels.

“城市记忆工程”数字资源库建设研究

＂城市记忆工程＂数字资源库的架构设计工作,是开展＂城市记忆工程＂研究,留存＂城市记忆＂资源的实践基础工作。本文在数字资源库构建过程层面上,提出了基于4个阶段的数字资源库建设过程,从不同层级论述了数字资源库建设的内容和要点;在数字资源库构建层面上,引入＂资源服务总线＂概念,以服务为主线,通过＂系统应用层＂＂服务总线层＂和＂资源基础构件层＂,提供不同级别的＂城市记忆＂数字资源内容与服务。

基于卷积神经网络的草莓叶部白粉病病害识别

针对计算机视觉下草莓叶部白粉病病害的识别,提出了一种基于卷积神经网络的病害识别模型。首先,设计了3种网络深度(经过3、4和5次卷积操作)与3种卷积核(5×5、3×3,5×5、3×3混合)交叉组合共9种不同网络深度与卷积核尺寸的卷积神经网络结构;其次,分别选择了4种采样层构建方法(均值池化、最大值池化、中间值池化和混合池化);最后,进行了9组训练集与测试集不同比例的模型识别。结果表明,基于混合池化的CNN-9模型(卷积核尺寸5×5,3×3;卷积神经网络深度11)表现最好,对草莓叶部白粉病病害的正确识别率达到98.61%。该方法可较好地实现草莓叶部白粉病病害的识别,且图像预处理步骤简单,易推广,可用于草莓白粉病病害的实时监测。

A Feature Definition Hierarchy for Supporting Design Process

The adaptability of features definition to applications is an essential condition for implementing feature based design. This paper makes attempt to present a hierarchical definition structure of features. The proposed scheme divides feature definition into application level, form level and geometric level, and provides links between different levels with feature semantics interpretation and enhanced geometric face adjacent graph. respectively. The results not only enable feature definition to abate from the specific dependence and become more extensive, but also provide a theoretical foundation for establishing the concurrent feature based design process model.

Safety analysis of optimal outriggers location in high-rise building structures

This paper presents the restraining moments of outriggers acting on the core wall and the equation of the horizontal top deflection based on a simplified outrigger model. The deformation compatibility conditions between outriggers and core wall as well as the finite rigidities of outriggers are also considered. One case study was carried out to analyze the horizontal top deflection and the mutation of the restraining moments caused by the variation of outrigger location. The results showed that the method adopted in the paper is simple and reasonable. Some conclusions are valuable to the safety design of high-rise building structures.

A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method

A new multi-level analysis method of introducing the super-element modeling method, derived from the multi-level analysis method first proposed by O. F. Hughes, has been proposed in this paper to solve the problem of high time cost in adopting a rational-based optimal design method for ship structural design. Furthermore,the method was verified by its effective application in optimization of the mid-ship section of a container ship. A full 3-D FEM model of a ship,suffering static and quasi-static loads, was used as the analyzing object for evaluating the structural performance of the mid-ship module, including static strength and buckling performance. Research results reveal that this new method could substantially reduce the computational cost of the rational-based optimization problem without decreasing its accuracy, which increases the feasibility and economic efficiency of using a rational-based optimal design method in ship structural design.

多层构建 优化高中语文核心素养教学

高中语文教学有其自身特点,教师要从不同视角展开教学,重新界定师生角色、整合语文教学内容、优化教学过程,为学生创设适宜的学习情境,以突显学生学习的主体意识。改变教学策略是培养学生核心素养的关键所在,作为语文教师,要彻底摆脱传统教学意识的影响,从不同层面优化教学内容,更新教法和学法。特别是增设实践活动,帮助学生在学习历练中形成学习素养。

Use of Lightweight 3d Wire Panels to Construct Low Rise Structures in Seismic Areas： Some Applications and Design Rules

In high seismic regions of the world, including Turkey, there are too many low-rise residential buildings made of rigid masonry walls or flexible moment-resistant frames with brittle masonry partitioning walls. During even moderate earthquakes, these buildings suffer heavy damages and brittle failures causing hundreds if not thousands of people to lose their lives and homes. Hence it is essential to build a house with lightweight materials that have an earthquake resistance with a proper safety. Recently in some countries such as USA, Italy, China and Turkey; a new building system called 3D wire panel building system use prefabricated lightweight panels to construct low-rise buildings up to three stories. The panels are fabricated from polystyrene, steel, and shotcrete concrete .The lightweight of these panels, easy handling, high construction speed, good heat insulation properties, in addition to their low cost by avoiding formwork and need for skilled workers make it an acceptable construction practice. In the literature, there is no enough information on the design rules of this new building system .This paper presents some hits on the design rules and some applications in Turkey such as construction of a factory, construction of a three story villa and construction of mosque domes.

Experimental Research on Seismic Performance of Storey-Adding Frame Structures

The seismic behaviors of an integral concreting frame, a light steel storey-adding frame and a storeyadding frame strengthened with carbon fiber reinforced polymer(CFRP)were investigated under low-cycle and repeated load(scale 1∶3). The failure characteristics, hysteretic behavior, rigidity degeneracy, deflection ductility and energy-dissipation capacity of the three specimens were compared. The test results reveal that chemicallybonded rebar technique can meet the requirements of storey-adding engineering. The carrying capacity, the deflection ductility, the energy-dissipating capacity and seismic performance of the light steel storey-adding frame are higher than those of the integral concreting frame, and they are the highest in the storey-adding frame strengthened with CFRP.