摘要：通过介绍广西贵港港口已成为西部地区内河第一大港具有的地理优势 ,针对该港建立的产业产品批量大及良好的水路运输大通道的条件 ,提出发展港口现代物流产业 ,必须充分认识港口在综合物流体系中的地位和作用 ,弄清目前港口发展现代物流存在的问题 。

摘要：贵港市造船工业经过几十年的发展,现已初具规模,截至2003年底,全市共有12家船舶修造厂,2003年完成建造船舶178艘11.5万载重吨.全市船厂拥有固定资产总值达236万元,拥有技术雄厚的造船工程技术力量,工程技术人员120人,少部分船厂还具有船舶图纸设计资格.桂平船厂为全市船舶修造能力最大的船厂.近年来,贵港市造船工业克服了种种不利因素,借助港口、航运迅速发展的东风,加大资金投入力度,扩展生产规模,加强技术力量,增强生产能力,取得了前所未有的发展.

摘要：Hydrogen is a promising sustainable energy to replace fossil fuels owning to its high specific energy and environmental *** water electrolysis has been considered as one of the most prospective technologies for large scale hydrogen *** boost the sluggish kinetics of hydrogen evolution reaction(HER)in alkaline media,abundant materials have been designed and ***,we summarize the key achievements in the development of layered transition-metal hydroxides[TM(OH)x]for efficient alkaline *** on the structure of TM(OH)x,the mechanism of synergistic effect between TM(OH)x and HER active materials is illuminated ***,recent progress of TM(OH)x-based HER catalysts to optimize the synergistic effect are categorized as TM(OH)x and active materials,including species,structure,morphology and interaction ***,TM(OH)x-based overall water splitting electrocatalysts and electrodes are summarized in the design principles for high activity and ***,some of key challenges for further developments and applications of hydrogen production are proposed.

摘要：水系锌离子电池由于具有较高的能量密度、成本低廉、安全性高和环境友好等优势,因此在智能硬件、小型电动车、大规模储能等领域具有广阔的应用前景。然而,锌金属负极存在的枝晶问题导致电池循环寿命缩短,严重制约了其实际应用。通过分析锌负极的沉积/溶解过程及其可能出现锌枝晶的路径,从人工界面层构筑、基底结构设计及电解液优化三个方面综述了无枝晶锌金属负极的近期研究进展,系统阐述了其主要设计策略及作用机制。最后,对锌金属负极未来发展方向进行了展望。