FUZZY COMPREHENSIVE EVALUATION OF CONTAINER TRANSPORTATION MODES ALONG THE CHANGJIANG RIVER MAIN LINE AND ITS DELTA AREA

The Changjiang River (Yangtze) is one of the fastest growth areas of container transportation in China. Rail, road and water transportation have competed against each other for container transportation in the Chang-jiang River main line and its delta area. It is of significance to assess these different transportation modes scientifically in order to organize container transportation efficiently in this area and make decision for integral plan and construction of transportation system in this area. This paper outlines application of fuzzy comprehensive evaluation to appraise different modes of typical direction of containers. Twelve assessment indexes were decided. Membership functions were formulated. Evaluation results indicated that road transportation was optimal mode in the Changjiang River delta area, however water transportation was the primary way in the Changjiang River main line.

On the Two Main Lines of China’s Economic Reform

In the autumn of 1987,the State Commission for Restructuring the Economic System organized eight units including the Research Group of the Chinese Academy of Social Sciences(CASS)to submit reports providing an outline economic reform plan for China for 1988-1995.The CASS Research Group recommended that enterprise reform and pricing and ownership reforms and their operational mechanisms should be carried out alongside each other in a two main lines approach.China’s deepening economic reforms have adhered to these two main lines throughout the last forty years.The first main line includes the revival and development of the individual economy,followed by the private economy,the introduction and utilization of foreign capital,and the reform of public ownership,including the state-owned system.In 1997,the 15th National Congress of the Party proposed the establishment of a socialist basic economic system with public ownership as the main body and simultaneous development of multiple forms of ownership.“Public ownership as the main body”is reflected in the dominance of public assets among total social assets and the fact that the state-owned economy controls the lifeline of the national economy and plays a leading role in economic development.The dominant role of public ownership has not changed in the forty years of reform and opening up.The second main line covers price reform,building a modern market system,reforming macro-control mechanisms and perfecting the macro-control and regulation system.From 1979 to 2017,our GDP grew at an average annual rate of 9.5 percent,while the CPI grew at an average annual rate of less than 5 percent:a perfect match.The two main line approach is in line with the provisions of economic reform in the new era proposed in the report at the 19th National Party Congress,which focuses on improving the property rights system and market-oriented factor allocation.There is no distinction of primary or secondary in the role of the two main lines;both are equally important.They are united in the establishment and improvement of the socialist market economic system.

Understanding the Main Line,Characteristics and Practice Path of Historical Initiative:Under the Guidelines of the 20th National Congress of the CPC

Theoretically based on historical materialism,the historical initiative of the Communist Party of China(CPC)is a precious character of creating new prospects amid changing circumstances consciously and proactively to acquire benefits for Chinese people.Integrated into its centenary history and showing highlights in different historical periods,the CPC’s historical initiative features dialectical unity between problem orientation and mission pursuit,upholding fundamental principles and breaking new ground,regularity and consciousness,as well as the leadership of the CPC and the pioneering spirit of the people.To accomplish the Second Centenary Goal and advance national rejuvenation,the CPC will follow the path of socialism with Chinese characteristics under the guidance of Marxism,stay committed to achieving national rejuvenation,unite and rely on the people,and stimulate the spirit of innovation and creation,thereby pooling more proactive spiritual strengths to make greater contributions in the new era.

Modeling Methods for the Main Switch of High Pulsed-Power Facilities Based on Transmission Line Code

Based on the transmission line code （TLCODE）, a circuit model is developed here for analyses of main switches in the high pulsed-power facilities. With the structure of the ZR main switch as an example, a circuit model topology of the switch is proposed, and in particular, calculation methods of the dynamic inductance and resistance of the switching arc are described. Moreover, a set of closed equations used for calculations of various node voltages are theoretically derived and numericMly discretized. Based on these discrete equations and the Matlab program, a simulation procedure is established for analyses of the ZR main switch. Voltages and currents at different key points are obtained, and comparisons are made with those of a PSpice L-C model. The comparison results show that these two models are perfectly in accord with each other with discrepancy less than 0.1%, which verifies the effectiveness of the TLCODE model to a certain extent.

Wider frequency domain for negative refraction index in a quantized composite right–left handed transmission line

The refraction index of the quantized lossy composite right-left handed transmission line（CRLH-TL） is deduced in the thermal coherence state. The results show that the negative refraction index（herein the left-handedness） can be implemented by the electric circuit dissipative factors（i.e., the resistances R and conductances G） in a higher frequency band（1.446 GHz≤ ω ≤ 15 GHz）, and flexibly adjusted by the left-handed circuit components（Cl, Ll） and the right-handed circuit components（Cr, Lr） at a lower frequency（ω = 0.995 GHz）. The flexible adjustment for left-handedness in a wider bandwidth will be significant for the microscale circuit design of the CRLH-TL and may make the theoretical preparation for its compact applications.

城市轨道交通夜间正线停车运营组织方案研究

城市轨道交通车辆基地建设通常需要占用大量城市土地,采用夜间在正线存放列车的形式,可在一定程度上缩小车辆基地规模,节省工程投资。文章在列举和分析国内外城市轨道交通夜间正线停车案例的基础上,阐述夜间正线停车需遵循的原则,并从通信系统、信号系统、车辆及建筑设施4方面剖析相关的专业技术要求。再以天津市轨道交通津静线为例,提出其夜间正线停车方案以及相关的运营组织措施。通过分析其实施效果可知,夜间正线停车可以降低对车辆基地资源的占用,减少列车空载里程,节省运营成本,并延长天窗时间,为夜间线路维护作业提供有利条件。

课程思政视角下校企合作课程“施工组织与管理”教学改革实践

为落实全国高校思想政治工作会议精神,响应“思政教育落实到每一节课”的号召,全面推进大思政课建设的工作;在课程思政视角下,以高职院校工程类专业群中“顶层互选”的校企合作课程“施工组织与管理”为例,从课程思政元素挖掘方法、课程思政元素渗入模式、解析思政元素融入专业课程案例等方面入手,对思政元素有效融入课程教学过程进行研究和实践,实现全员全程全方位育人,保证学生的专业知识学习与思政教育同步同向同行。

A catalog of early-type emission-line stars and Hα line profiles from LAMOST DR2

We present a catalog including 11 204 spectra of 10436 early-type emission-line stars from LAMOST DR2, among which 9752 early-type emission-line spectra are newly discovered. For these early- type emissionqine stars, we discuss the morphological and physical properties of their low-resolution spectra. In this spectral sample, the Hα emission profiles display a wide variety of shapes. Based on the Hα line profiles, these spectra are categorized into five distinct classes： single-peak emission, single-peak emission in absorption, double-peak emission, double-peak emission in absorption, and P-Cygni profiles. To better understand what causes the Hc~ line profiles, we divide these objects into four types from the perspective of physical classification, which include classical Be stars, Herbig Ae/Be stars, close binaries and spectra contaminated by H n regions. The majority of Herbig Ae/Be stars and classical Be stars are identified and separated using a （H-K, K-W1） color-color diagram. We also discuss 31 binary systems that are listed in the SIMBAD on-line catalog and identify 3600 spectra contaminated by HⅡ regions after cross-matching with positions in the Dubout-Crillon catalog. A statistical analysis of line profiles versus classifications is then conducted in order to understand the distribution of Hc~ profiles for each type in our sample. Finally, we also provide a table of 172 spectra with Fen emission lines and roughly calculate stellar wind velocities for seven spectra with P-Cygni profiles.

Measurements of the Ca II infrared triplet lines of young stellar objects

Equivalent widths and line widths of Ca II infrared triplet emission lines were measured in the high-resolution optical spectra of 39 young stellar objects.We found that the equivalent widths of the emission lines decrease with stellar evolution.It has often been claimed that strong chromospheric activity is generated by a dynamo process caused by fast rotation of the photosphere.However,we found no clear correlation between the strength of the Ca II lines and the stellar rotation velocity.Instead,we found that the objects with high mass accretion rates had stronger Ca II emission lines.This correlation supports the turbulent chromosphere model or the magnetic accretion theory for classical T Tauri stars.We also noticed that the equivalent widths of Ca II lines in transitional disk objects are one-tenth of those in classical T Tauri stars,even if the masses of the circumstellar disks are comparable.

课程思政背景下“传感器与检测技术”课程改革与实施

基于“岗课赛证”,以“三科技三精神”为思政主线,创新教学理念、教学策略和教学评价体系,构建“三阶八环”教学实施流程,对“传感器与检测技术”课程进行教学改革和实施。教学实践表明,学生知识、技能和素养增值显著,有效提高了传感器应用型人才培养质量。

基于主线不停运的城轨支线独立运营改造方案

研究目的:针对大型铁路枢纽接入已运营轨道交通线路引起的既有线改造问题,为满足铁路枢纽与轨道交通连接线(支线)施工期间主线正常运营不受影响,对改造涉及的运营组织与接轨方案进行系统研究,并对土建、轨道、接触网、环网与动照、信号、综合监控与通信系统等的改造及影响进行深入研究,在统筹考虑实施难度、投资与工期的基础上,提出实施风险最小、技术最合理的改造方案。研究结论:(1)既有高架车站与区间改造影响范围较小且相对可控,可以实现主线正常运营情况下新建独立运营支线工程;(2)为最大程度保障主线运营不受影响,在现有技术水平条件下,应尽量避免在运营天窗期进行各类信号光电缆的割接;(3)支线独立运营方案,应尽量采取措施将新建支线与主线相连、轨道相通,以利于车辆检修与维保,并增加运营的灵活性;(4)桥梁浇筑与平移施工临近既有线,实施阶段应进一步完善工艺衔接与交叉施工统筹,增加既有线安全保障;(5)本研究结论可为类似工程提供参考。

浅谈免疫学教学中的难点化解策略

免疫学课程在我国高等院校生物、医学、畜牧、食品类专业均有开设。由于免疫学知识多维度构成的特点,大多数学生在学习时因不易领会要点及知识点间的逻辑关系,导致跟不上教学节奏、学习信心不足、感觉章节知识点之间的关联较复杂、对免疫学知识点理解不透彻等问题。本文总结了在免疫学教学中采用启发式、主线式、案例式等教学方法,以求化解学生学习难点、切实明晰学习思路、提高学习信心和学习成效。

专业基础课课程思政的融入及浓度问题

课程思政建设无疑是当前军队院校“以战领教”教学模改的有力补充。以课程思政的融入为关注点,探讨了课程思政的融入理念、融入原则、融入方法及融入浓度问题,提出一门课的思想政治设计要有一个主调。课程设计中,思想政治与知识、能力一体化设计,达到逻辑、情感关系的统一才是思想政治建设的长效机制。最后以“机载光电技术与设备”为例,给出了课前、课中、课后思想政治融入的具体案例,力求为军队院校课程思政建设提供参考与借鉴。

化学工程与技术专业高水平创新应用型研究生人才培养模式的探索与实践

针对化学工程与技术专业研究生培养过程中,出现了培养模式单一、优质教学资源匮乏、实验操作技能差、应用思维能力弱化、科研创新能力不足等缺点,南昌航空大学环境功能材料教学团队以研究生创新能力培养为一条主线,以工程应用思维培养、功能材料实验技术方法培养和双导师制联合培养研究生为三大模式,以纳米材料、光催化分解水制氢、催化剂的设计合成及应用、催化剂可控合成及污染控制等四大创新研究方向为基石构建了独具特色的化学工程与技术专业研究生创新能力培养模式。实践发现,在此培养模式下能提升学科影响力与研究生培养质量,更利于创新型化学工程与技术专业研究生人才的培养。

问题导向的“钢结构设计原理”课堂理论教学改革

“钢结构设计原理”是道路桥路与渡河工程专业的核心专业课程,扎实提升课堂理论教学效率和效果是该课程教学改革的重要任务和目标。细致分析“钢结构设计原理”的课程内容特点以及由此导致学生学习过程中存在的问题,有针对性地提出从多层次网格模块化教学内容、建立“思维主线”、引入真实工程案例、坚持精确理论推导与定性分析相结合、开展课程横向比较等方面开展课堂理论教学改革,进而从根本上提升课堂理论教学的效率与效果。

“三全育人”理念指导下热工控制系统试验与维护课程思政的教学设计与实施

对当前高职院校热工控制系统试验与维护课程的教学现状及问题进行分析。提出了以“厚德强技乐业、电力点亮人生”为思政主线的课程思政总体设计思路,从课程思政教学目标、教学体系、教学方法、教学实施、教学评价5个方面对高职院校热工控制系统试验与维护课程思政教学进行了改革探索。实践结果表明,热工控制系统试验与维护课程思政教学改革取得了良好效果,学生的电力报国情怀培育得以强化,人才培养质量显著提高,毕业生获就业单位广泛好评。

超高层建筑综合体消防负荷供配电系统设计

结合现行国家、行业及地方规范、标准,对超高层建筑综合体的消防负荷供配电系统、柴油发电机选择等设计方法及设计要点进行详细探讨。

长江干线“零排放”政策下船舶防污染面临问题及对策研究

长江干线船舶往来频繁,常年运营船舶20万条左右,船舶在航行过程产生的污染物对水域环境产生潜在影响。为从源头上防治船舶污染,自2020年起,重庆地区率先实施船舶水污染物“船上储存、交岸处置”的“零排放”治理模式,取得了一定的成效,目前“零排放”治理模式已基本覆盖长江干线。本文梳理了长江干线船舶防污染法律法规、“零排放”实施背景和现状,提出“零排放”政策下船舶污染面临的问题并给出了对策建议,为下一步船舶防污染工作提供借鉴和思路。

大庆油田原油高质量稳产必要条件及技术策略

大庆油田已全面进入“后油藏”“非常规”开发时代,面临着剩余资源劣质化、成本刚性增长、接替技术尚未成熟配套等诸多挑战,老油田如何继续保持产量规模、开发技术、经济效益、经营管理的高质量成为亟待解决的问题。从保障国家能源战略安全、当好标杆旗帜、高质量发展内涵3个维度系统分析新时代油田原油保持高质量稳产的战略意义,从待探明资源、未动用储量、已开发油田分类挖潜3个层次进一步夯实油田高质量发展的物质基础,从大庆油田稳产文化、主体技术、管理模式证实油田保持高质量稳产是客观规律使然。制定“稳定长垣、攻坚外围、突破页岩油”开发主线,优化技术领域,细化对策部署,明确大庆油田原油高质量稳产技术策略,为推动大庆油田成长“第二曲线”加速上扬发挥主力军作用。

长江干线船舶污染应急监测能力建设及对策探究

长江干线是全球运量最大,运输最繁忙的内河水运通道,随着长江干线船舶数量的不断增加,以及通航环境的日趋复杂,船舶事故对长江水环境可能造成的污染风险也逐渐加大。因此,有必要开展针对长江干线船舶污染应急监测能力建设及对策的探究。本文对船舶污染应急监测技术进行了梳理与总结,分析了我国船舶污染应急监测能力建设情况,对长江干线船舶污染应急监测能力建设提出了4条对策:未来应该着重发展无人机遥感监测技术;在敏感点位置做好在线监测,以实现及时预警;建立应急资源数据库;加强应急监测人才队伍的培养。