中国—东盟自由贸易区建成给广西服务业带来的机遇和挑战

中国—东盟自由贸易区如期建成给广西带来极大的发展机遇,同时也面临一系列的挑战,二者相较,机遇大于挑战。广西要通过发展服务业、对越贸易、金融服务、物流服务、工程劳务、旅游服务、教育服务等促进对东盟国家的服务贸易,加快广西服务业的发展。     

对泉州建设海西制造业基地的思考

目前,泉州正处在重要的发展机遇期,其建设海西先进制造业基地的总体趋势较好。但是存在着制造业产业结构偏轻、产业层次偏低、融资体制市场化改革滞后、制造业技术创新能力薄弱、企业分工机制尚未形成和产业集群关联效应弱等诸多问题。需要从加强闽台两岸产业对接及区域合作、推动制造业转型升级和提高自主创新能力、不断优化制造业发展环境、构建海西先进制造业金融支持体系、促进制造业的有序整合与空间集聚等几方面入手加快推进。     

发展生产性服务业与山东省产业结构升级研究

生产性服务业可以促进制造业结构升级、第三产业内部结构升级以及产业结构整体升级。对山东省产业结构现状和生产性服务业发展现状作实证分析,给出山东省发展生产性服务业的对策建议。     

现代服务业与先进制造业的耦合与发展

现代服务业与先进制造业之间有内在的"耦合发展"现象,生产力的发展是现代服务业与制造业耦合发展的客观基础,良好的环境是现代服务业与先进制造业耦合发展的必备条件.我国制造业的发展具有市场空间大、劳力成本低、生产能力强、后发优势足等优势,应适时利用这些优势将我国由"制造业大国"引向"服务业大国".     

The effects of four different solvent vapours on the restoration of obliterated stamp markings from five different wooden surfaces

The stamp markings on wooden surfaces, which are placed on trees and products including antiques, indicate the status of trees and involve identifying data regarding the products. Such markings are obliterated either to facilitate illegal logging or to conceal product information. Despite the wide literature on the restoration of obliterated characters on metal and polymer surfaces, the recovery of defaced characters on wooden surfaces appears to be understudied. Several reference texts in the forensic marks’ examination literature suggest that water, water vapor, and alkaline solutions are useful in restoring the abraded markings on the wood. Since there does not seem to be any experimental study proving such success, this study aimed to fill this gap. This study conducted experimental research by using water, ethanol, ammonia, and chloroform to recover the scraped characters on samples obtained from walnut, beech, spruce, oak, and cedar trees. The cold-stamped characters, which were defaced at varying depths, were restored using vapor and liquid phases of four solvents. While the vapor phases of water, ethanol, and ammonia yielded good outcomes on all types of wooden surfaces, the liquid phases did not seem to be useful in the revisualization process. The response of the vapors, which varied between 62 and 220 s, depended on the type of wood. The restoration technique developed in this research offers the possibility of on-site usage, easy application, utilization of low-cost solvents, rapid recovery, and effectiveness on various wooden surfaces. Overall, the restoration methodology used in this research appears to be fruitful in retrieving identifying information on wooden samples.