Urban spatial expansion and its impact on ecological service values of Chongqing City Proper in the last 30 years

Based on the remote sensing images of urban land use of Chongqing City Proper in the last 30years(from 1978 to 2011),The paper focuses on the impact of urban spatial expansion on urban ecosystem service.The charactereristics of urban spatial expansion pattern are expressed by Landscape Expansion Index and Index of Fractal Dimension.Taking advantage of calculation of these two indices,changes of the ecological service values in the main urban area of Chongqing caused by the variation of urban expansion patterns are evaluated and the interrelationship is analyzed.The main conclusions and results are as follows;in Chongqing City Proper,the ecological service value decreased rapidly from 1978 to 2011,especially in the period of 2002-2011.Urban spatial expansion pattern has exerted significant impact on urban ecosystem service value.Edge-expansion pattern broke into a great deal of urban enclaves and caused the disadvantage effect of the function of urban ecological system.At the same time,negative correlation existed between the indices of fractal dimension and the ecosystem service value.

Analysis of Bridge Inspection Technology for Highway Reconstruction and Expansion

This article focuses on bridge testing technologies in highway construction and expansion projects.It provides an overview of the inspection process for bridges in highway reconstruction and expansion projects,the main inspections,and strategies for improving the quality of inspections.Relevant units should conduct bridge inspections using appearance inspections,special inspections,and bearing capacity assessments in highway reconstruction and expansion projects.To effectively improve testing quality,relevant units should also focus on establishing and improving testing standards,strengthening material testing,and improving the overall quality of the testing personnel.This research aims to enhance the quality of highway reconstruction and expansion projects by supporting the sensible application of bridge inspection technology.

Discussion on Construction Technology of Subway Tunnel Expansion under Bridge Foundation

As the urban populations grow,the number and size of subway construction projects are increasing while also meeting higher construction standards.So,subway construction projects must have a better understanding of construction technology.This article focuses on the construction technology of the subway tunnel expansion under the bridge foundation.By analyzing the engineering characteristics of the bridge foundation and using a project as an example,this article provides a detailed discussion of the construction process of tunnel expansion under a bridge foundation.This article aims to serve as a reference for subway tunnel construction in China to ensure the key points of construction technology are understood,thus improving construction quality and laying a solid technical foundation for the sustainable development of urban rail engineering.

Research on Traditional Structural Aesthetics in Construction Realm in China

The paper aims at indicating and demonstrating a kind of beautiful harmony in technology and art of excellent buildings of ancient China, through the analysis of cases of historic building up to the study of theoretical generalization. Any applicative, practical and durable building will conform to the simplicity of science and technology and harmony of design, and conform to the principle of beauty in the meantime. Architecture not only satisfies the need of functions, but represents the combination of skill and art, which is a sufficient integration of technology and art. The paper analyzes the relationship between technology and art of historic buildings in China by taking the typical examples of the Zhaozhou Bridge and the Hanging Temple of Hengshan, and clarifies the way of fusion between building and art, and indicates ways of fusion and reasons. In the last, the article proves the theory by the case of indoor decoration in modern building in order to defend mechanics and aesthetics in the modern buildings.

The Effect of Micro-Pulsatile Electrical and Ultrasound Stimulation on Cellular Biosynthetic Activities Such as Cellular Proliferation, Endogenous Nitrogen Oxide and Collagen Synthesis

The skin barrier poses an ongoing challenge for the cosmetics industry. Its penetration, by non-invasive means, can readily be achieved with currents and ultrasound or radiofrequency devices through electroporation, sonophoresis, iontophoresis or cavitation. When several types of energy are applied simultaneously, we expect the effects to be magnified and all the more effective. Although the mechanism of action of each technology on the skin is not entirely controlled, and is even less so when multiple technologies are applied concurrently, some studies demonstrate that nitric oxide (NO) plays a pivotal role in skin wound-healing and regeneration. With regard to wound healing, one of the key functions of NO appears to be its permissive effect on keratinocyte and fibroblast proliferation, which helps promote wound re-epithelialization. The objective of the actual research is to gain an in-depth understanding of the mechanisms generated by NO through the application of a specific combination of technologies.

Study of the Application of Expansive Cement in Building Construction

A China’s construction industry continues to develop,the amount of building construction has increased significantly,and construction technology has been continuously advancing.In particular,the application of expansive cement in building construction is becoming more popular.The correct use of construction technologies can not only speed up the progress of the construction project,but also reduce the project cost significantly.In this paper,the application of expansive cement building construction is discussed in detail,and the solutions of related problems are proposed.

A Grotesque and Thrilling World:Alienation in The Fluted Girl

As a popular science fiction writer,Paolo Bacigalupi has drawn great attention with his marvelous fictions and novels,yet limited researches have focused on his novels rather than short stories,mostly analyzing from aspects like ecologism,feminism,dystopia,and anthropocene.This paper intends to analyze one of his short fictions,The Fluted Girl,using the theory of alienation to unveil the social problems hidden in the story,in order to further explore the author’s writing intention.In this grotesque and thrilling story world,Bacigalupi shows his ethical concern for the era we are living in,urging the readers to rethink about the alienation in our world.

Study and Strategy on Expansion of Steam Cracking Unit to 650 kt/a at Yanshan Petrochemical Company

After having expanded its capacity from 300 kt/a to 450 kt/a in 1994, the steam cracking unit of Yanshan Petrochemical Company was still experiencing such problems as low feedstock flexibility, high energy consumption and smaller production capacity as compared to other ethylene units constructed in the same time. In order to fully improve technical capability, reduce energy consumption, improve feedstock flexibility and increase production capacity of steam crackers, a lot of technical transform schemes on steam cracking were studied and compared with attention focused on the feasibility, safety, operability of the related revamp schemes, as well as the advanced nature and economical features. The transform scheme decided includes following projects. For the pyrolysis quench compression system, the pyrolysis gasoline fractionation tower is retrofitted on the site, quench water tower, pyrolysis gas compressor and steam turbine are replaced by new ones respectively. For the separation system a low pressure methane removal technology is adopted with the demethanizer tower replaced, coupled with the C 3 catalytic rectification/hydrogenation technology, while the high pressure depropanizer is replaced with addition of a propylene rectification tower. The fractionation flow sheet and equipment are adjusted with addition of a propylene compressor and compressor for binary mixture of methane ethylene cooling agents. The revamped complex has expanded the ethylene capacity to the target of 660 kt/a with the actual capacity reaching 710 kt/a, remarkably reduced the energy consumption, and is capable of using naphtha, light diesel fuel, heavy diesel fuel and the hydrocracked tail oil as the steam cracking feedstock. This project is the first to apply refrigeration by means of a mixed cooling agent and has succeeded in using C\-3 catalytic rectification/hydrogenation technology, which has given an impetus to the progress of steam cracking industry in the world.

Techno-aesthetics in architectural discourses:A state of the art review

Since the beginning of the First Industrial Revolution,technology and its impact on art and design have been a topic of discussion.With the rise of digital technologies,there has been a renewed interest in exploring the relationship between technology and aesthetics.The aim of this paper is to clarify the concept of techno-aesthetics and make it a more accessible field of study by identifying its key discourses.In order to understand how technological objects have been evaluated in architectural history,a systematic review of 177 studies was conducted.The collected literature was analyzed using Kant’s characteristics of aesthetic judgment,discourse analysis techniques from Foucault’s methodology and Laclau and Mouffe’s discourse theory.This helped in creating a framework for classifying the literature.The study analyzed results based on five categories:admired technological objects and architectural objects inspired by them,concepts(function,truth,freedom,objectivity,unity,and power),standpoints(rationalism,romanticism,optimism,and determinism),and benchmarks of legitimation(ideology,history,scientific nature,everyday aesthetics,and sublimation of technology).These results were then combined to identify eleven significant discourses of techno-aesthetics.

新疆油田浅层超稠油SAGD高效低碳开发技术研究与展望

针对“双碳”目标背景下超稠油开发高能耗与油田高质量发展矛盾日益加剧的问题,新疆油田通过SAGD机理研究与现场实践,在维持蒸汽腔高效扩展,突破储层渗流屏障遮挡,提高浅薄层驱泄复合效率,实现水平井长水平段高效均衡产液等方面持续攻关,取得显著效果。采用气体辅助技术,实现蒸汽腔隔热保压增能,油汽比可提高20%;利用立体井网及储层升级扩容技术,改善Ⅲ类超稠油油藏渗流特征,泄油速度可增大20%~40%;采用全密闭生产方式,VHSD产液温度由100℃上升至150℃,采油速度提高50%;深化热采流量控制器(FCD)机理研究,完善油藏-井筒耦合优化设计方法,水平井水平段动用程度可提高20%。“十四五”期间,新疆油田将深化溶剂辅助SAGD、无水SAGD和控温水热裂解等技术研究,逐步完善浅层超稠油低碳高效开发技术系列,该研究可为稠油油藏开发提供借鉴。

数字技术对数字艺术的生产与美学塑造研究

数字时代,以ChatGPT为代表的人工智能生成技术,激发了生成式人工智能的浪潮。人工智能生成技术对数字艺术的生产与审美塑造机制产生了巨大影响。从数字技术与数字艺术的关系来看,数字生成技术不断拓展着数字艺术的边界,为其带来新的生命力与发展动力。数字艺术也在不断提升数字技术,推动其向前发展,两者互鉴与共构。这种技术扩域带来的艺术生态的变革,使数字艺术的生产端日益便捷和高效。随之带来的艺术平权化,一方面消解了经典艺术的审美“光晕”,另一方面也带来了审美端的体验性与交互性的新变化。人们对数字艺术应该有全新的认识,形成新的美学价值。

“Mimēsis”的辩证法:阿多诺对“技术”的媒介美学批判

在阿多诺针对大众媒介技术展开的现代美学批判中,“Mimēsis”(摹仿)的辩证法是核心向度之一。在对本雅明关于技术复制与现代艺术命运关系之思考的容受中,通过指认技术复制是“摹仿的绝对化”而真正艺术是“摹仿行为的庇护所”,阿多诺揭示了“摹仿”在技术时代的美学中仍然能够作为一个批判概念得以存留的可能性和必要性。其根本原因在于:作为摹仿绝对化的技术复制无论其表面上多么繁荣多样,其实质只是“重复”;但如果媒介技术的“复制”功能成为技术时代艺术的重要摹仿对象,在生产差异之“重复”的“摹仿辩证法”中,复制的技术便可以被艺术的摹仿技艺所吸收转化,从而实现技术的美学“救赎”。

数字经济赋能扩大内需的影响机制研究——基于多重中介模型

数字经济为我国实施扩大内需战略提供重要动力。文章基于2013—2021年省级面板数据分析数字经济和内需发展水平的时空演化特征,通过固定效应和中介效应模型的实证检验,探究数字经济赋能扩大内需的影响机制。研究发现:数字经济能够有效提升区域内需发展水平,在一系列稳健性检验之后,这一结论仍然成立。此外,数字经济影响内需发展存在区域异质性,对中西部和低内需发展水平地区的促进作用更强。机制分析表明:技术创新、产业结构升级以及收入增加是有效的赋能机制;数字经济通过促进技术创新能力提高、产业结构升级和农村居民增收拉动消费需求和投资需求,从而助力扩大内需。

智能技术具身下审美教育锚定人工智能素养的理路演进

人工智能的具身化发展升级了技术具身的概念,“智能技术中的身体”和“智能技术身体”深刻变革人类认知方式转向人机共创的模式。审美教育具有学科共通性,智能技术具身演化了审美教育的新生态,形成了包括智能环境、人机协同融合模式、智能代理机制和大脑智能的新型智能架构。智能技术具身下审美教育目标就是找到提高学生审美认知的可行方法和有效方式。审美认知表现在以身体为中心的智能技术和学生心智的协同与耦合,相应地审美教育的目标就锚定了人工智能素养。人工智能素养导向的审美教育可以为学生审美认知赋能赋权,有力支撑学生知情意行和谐统一的教育总体目标,铺设学生思维升级的路径。智能技术具身下的审美教育成为培育学生人工智能素养的新范式,即以自动化实现为审美理念引导智能通识技能的升格、以解决问题为审美目标引导计算思维的提升、以协同创造为审美理想引导高阶思维的跃迁。

基于眼动追踪技术的哈尔滨地铁站入口设计造型审美意象研究

城市公共家具是城市便捷生活的助力产品,也是城市文化、城市形象的重要承载传播媒介。本文以哈尔滨地铁站入口为研究对象,采用眼动追踪技术、语义差分法、问卷调查、数据统计相结合的方法对哈尔滨城市公共家具造型审美意象进行定性定量化分析和研究。哈尔滨地铁站入口样本的兴趣区研究数据显示,地铁站入口造型的核心关注区域为站点标识牌、拱形造型、立柱等部位,地铁站入口类型对兴趣区观看时间影响不大,不同造型区域观看时间存在一定差别;哈尔滨城市公共家具会给人带来“厚重”“古典”的感觉。对于哈尔滨城市公共家具造型和审美认知的定量化研究,将模糊意识和主观评价转化为准确的数据化客观表达,为具有城市文化特色的公共家具造型设计创新提供科学参考依据。

褶皱装饰元素在皮革服装设计中的应用研究

皮革服装不仅要适应个体,还要凸显个体美感。正是由于服装与个体间愈发密切的关系,服装设计才得以实现长足发展。褶皱装饰元素存在的意义是满足人类个性化需求,彰显个体美感的同时,促使皮革服装神韵与底蕴完美展现。本文详细分析了皮革服装设计中褶皱装饰元素应用现状,深层解析了褶皱装饰元素的美感表现及其与皮革服装设计的耦合,并进一步探究了褶皱装饰元素在皮革服装设计中的实际应用,为皮革服装设计实现多元化发展提供可借鉴依据。

低透气煤层无泵式钻扩一体化增透技术与钻具研究

针对在低透气煤层常规机械掏穴、水力冲孔等增透施工中存在的施工效率低、掏穴装置稳定性差以及需要配备高压泵等问题,提出了无泵式钻扩一体化增透施工技术,研制了配套的双通道送水器、双通道钻杆和造穴装置,并进行了现场工业性试验。结果表明:钻扩一体化增透施工技术在煤矿井下静压水条件下,可实现一趟下钻完成先导孔和机械掏穴的同时作业,解决了常规掏穴装置刀翼开合不稳定、必须配套高压泵的问题,降低了该技术的使用成本;研发的双通道送水器、双通道钻杆和造穴装置工作灵活稳定且可靠性高,造穴段单孔直接扩大至原常规钻孔孔径的4.4倍,显著提升了瓦斯抽采效果,该技术的成功应用为煤矿井下低透气煤层瓦斯抽采钻孔施工提供了技术支撑。

膨胀土地基高速铁路路基变形控制分析

研究目的:膨胀土地基在我国分布广泛,浸水后其强度衰减显著,吸水失水产生的胀缩变形反复,工程危害极大,既有铁路、公路路基病害非常突出,膨胀土边坡稳定、基床翻浆冒泥问题现已基本解决,普速铁路和高速公路路基变形也得到了较好控制,但其变形控制标准为20~30 cm,高速铁路以毫米级变形作为控制标准,在膨胀土地基上修建高速铁路路基必须解决路堑和低路堤的膨胀上拱变形和高路堤的沉降变形两大技术难题。研究结论:(1)天然膨胀土地基浸水后膨胀量明显大于无砟轨道铁路工务养护的限值,路基柔性填筑体对膨胀土的膨胀和收缩变形具有较好的缓冲作用;(2)天然膨胀土地基填筑路基在施工期可完成总沉降的80%以上、复合地基加固处理可达90%以上,超固结膨胀土地基上填筑路基高度不大时,加固地基与天然地基的总沉降量均较小;(3)膨胀土地基路堑及低矮路堤工程宜采用路堤式路堑结构,基床范围全部换填,加强防排水措施,地基宜采用小直径、小间距CFG桩加固,一般路堤对浅层4~6 m进行加固处理,高路堤地基处理按一般土质地基进行沉降计算分析确定;(4)本研究结果可为膨胀土地基高速铁路建设提供有益参考。

稠油开发技术进展及新分类标准建立与应用实践——以胜利油田稠油开发为例

稠油油藏是一种重要的战略资源,对保障国家能源安全起到重要的作用。国内外稠油开发主要有蒸汽吞吐、蒸汽驱、驱泄复合(SAGD)、火烧驱油4项技术,受技术适应性、成本高及对环境不友好的影响,其推广和运用存在一定局限性。胜利油田根据自身油藏特点,形成了薄层水平井、热化学复合和化学降黏3项新技术,拓展了开发技术界限,使稠油油藏开发的有效厚度界限低至2m、油藏埋深为2000 m、储层渗透率界限低至100×10^(-3)µm^(2)。根据各项技术特点和矿场应用效果,建立了以技术适应性为基础的稠油新分类标准,把稠油油藏分为5大类,指导矿场稠油开发技术方向的选择。结合目前技术发展方向和新的形势要求,指出“多元热复合”“非热力开发”“纳米材料应用”将是稠油开发技术3个趋势。