1.Introduction.The Ti6Al4V alloy is extensively utilized across various indus-trial sectors due to its favorable characteristics,such as lightweight design,high strength,and resistance to corrosion[1].In effort s to f...1.Introduction.The Ti6Al4V alloy is extensively utilized across various indus-trial sectors due to its favorable characteristics,such as lightweight design,high strength,and resistance to corrosion[1].In effort s to further reduce weight,functional elements like electric actuators can be substituted with intelligent materials like shape memory alloys(SMAs)[2,3].Among SMAs,NiTi alloy stands out for its sens-ing and actuation capabilities,significantly enhancing the safety and reliability of engineering structures[4,5].Integrating Ti6Al4V and NiTi alloys within a single component holds the potential to provide precise feedback on mechanical,thermal,or environmen-tal conditions[6,7].展开更多
Photocatalytic degradation of volatile organic compounds(VOCs)is a significant applying aspect of pho-tocatalysis.Both the modulation of photocatalysts and the rational dispersion of them on supports are key for solar...Photocatalytic degradation of volatile organic compounds(VOCs)is a significant applying aspect of pho-tocatalysis.Both the modulation of photocatalysts and the rational dispersion of them on supports are key for solar-driven VOC degradation.Conventional batch-type photoreactors have low efficiency while continuous-flow photoreactors suffer from the problem of incomplete removal of VOCs.Herein,aiming for continuous and complete degradation of toluene gas as the target contaminant,continuous-flow pho-tocatalytic degradation reactors were made by adhering the vanadium and nitrogen codoped TiO_(2)on honeycomb ceramics(V/N-TiO_(2)@HC)by a simple sol-gel method.In such a reactor,the rich ordered pores in the HC accelerate mass transport of toluene,and the introduction of V/N dopants narrows the bandgap and widens the light absorption range of TiO_(2),together resulting in continuous and nearly-complete pho-tocatalytic degradation of toluene.The unique and stable structure of HC allows the photocatalysts to be reused.The degradation rate of toluene gas can reach 97.8%,and after 24 rounds of photocatalytic degra-dation,there is still a degradation rate of 96.7%.The impacts of loading times and gaseous flow rate on the photocatalytic performance of V/N-TiO_(2)@HC are studied in detail.Our study provides a practical so-lution for the continuous and complete photocatalytic degradation of VOCs and opens a new application field for HC.展开更多
“v/adj + 死 + 了”此结构日常使用的频率很高,但跨文化学习者常常不够理解“死”字的含义以及此结构的特点与具体运用语境,而导致使用错误率极高,本文在语料库视角下,搜集整理文学作品与生活口语中的3500余条语料,从构词语素“死”入...“v/adj + 死 + 了”此结构日常使用的频率很高,但跨文化学习者常常不够理解“死”字的含义以及此结构的特点与具体运用语境,而导致使用错误率极高,本文在语料库视角下,搜集整理文学作品与生活口语中的3500余条语料,从构词语素“死”入手,对比“死”字古今含义的演变过程,选取构词语素“死”组成的132个词语分析其主要的构词类型;并从时态、语境、语法成分等方面剖析“死”含义虚化与语法化的过程,将前接动词与形容词细化分类,得出前接谓词的类型影响“v/adj + 死 + 了”结构中“死”的语义,以期为跨语言学习者提供一些参考,促进文化的交流与理解。The construction “v/adj + dead + 了” is prevalently employed in daily communication;however, cross-cultural learners frequently fail to comprehensively understand the meaning of “dead” and the specific application contexts and characteristics of this structure, thereby giving rise to an exceptionally high error rate. In this paper, from a corpus perspective, over 3500 examples of this structure are collected and sorted from both literary works and everyday spoken language. Commencing from the morphological element “dead,” the paper contrasts the evolution of the meaning of the word “dead” from antiquity to the present, selects 132 words composed of the morphological element “dead,” and analyzes their principal types of word formation. Additionally, it analyzes the process of the meaning of “dead” becoming abstract and grammaticalized from the aspects of tense, context, and grammatical components, and classifies the prepositional verbs and adjectives in detail, reaching the conclusion that the type of prepositional verb influences the semantics of “v/adj + dead + 了”, in order to provide some references for cross linguistic learners and promote cultural exchange and understanding.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.52235006)the National Key Research and Development Program of China(Grant No.2022YFB4600500)+3 种基金the National Natural Science Foundation of China(Grant Nos.52025053 and 52105303)the Natural Science Foundation of Jilin Province(Grant No.20220101209JC)the Postdoctoral Fellow-ship Program of CPSF(Grant GZC20240587 and GZC20230944)the Graduate Innovation Fund of Jilin University(2024CX063).
文摘1.Introduction.The Ti6Al4V alloy is extensively utilized across various indus-trial sectors due to its favorable characteristics,such as lightweight design,high strength,and resistance to corrosion[1].In effort s to further reduce weight,functional elements like electric actuators can be substituted with intelligent materials like shape memory alloys(SMAs)[2,3].Among SMAs,NiTi alloy stands out for its sens-ing and actuation capabilities,significantly enhancing the safety and reliability of engineering structures[4,5].Integrating Ti6Al4V and NiTi alloys within a single component holds the potential to provide precise feedback on mechanical,thermal,or environmen-tal conditions[6,7].
基金financial support of this work from the Key Research and Development Project of Gansu Province(No.20YF3GA008)the Lanzhou Science and Technology Lanzhou Science and Technology Bureau Project(No.2022-2-15)+1 种基金Gansu Provincial Science and Technology Commissioner Special Project(No.22CX8GA106)Key Research and Development Project of Gansu Natural Energy Institute(No.2019YF-02).
文摘Photocatalytic degradation of volatile organic compounds(VOCs)is a significant applying aspect of pho-tocatalysis.Both the modulation of photocatalysts and the rational dispersion of them on supports are key for solar-driven VOC degradation.Conventional batch-type photoreactors have low efficiency while continuous-flow photoreactors suffer from the problem of incomplete removal of VOCs.Herein,aiming for continuous and complete degradation of toluene gas as the target contaminant,continuous-flow pho-tocatalytic degradation reactors were made by adhering the vanadium and nitrogen codoped TiO_(2)on honeycomb ceramics(V/N-TiO_(2)@HC)by a simple sol-gel method.In such a reactor,the rich ordered pores in the HC accelerate mass transport of toluene,and the introduction of V/N dopants narrows the bandgap and widens the light absorption range of TiO_(2),together resulting in continuous and nearly-complete pho-tocatalytic degradation of toluene.The unique and stable structure of HC allows the photocatalysts to be reused.The degradation rate of toluene gas can reach 97.8%,and after 24 rounds of photocatalytic degra-dation,there is still a degradation rate of 96.7%.The impacts of loading times and gaseous flow rate on the photocatalytic performance of V/N-TiO_(2)@HC are studied in detail.Our study provides a practical so-lution for the continuous and complete photocatalytic degradation of VOCs and opens a new application field for HC.
文摘“v/adj + 死 + 了”此结构日常使用的频率很高,但跨文化学习者常常不够理解“死”字的含义以及此结构的特点与具体运用语境,而导致使用错误率极高,本文在语料库视角下,搜集整理文学作品与生活口语中的3500余条语料,从构词语素“死”入手,对比“死”字古今含义的演变过程,选取构词语素“死”组成的132个词语分析其主要的构词类型;并从时态、语境、语法成分等方面剖析“死”含义虚化与语法化的过程,将前接动词与形容词细化分类,得出前接谓词的类型影响“v/adj + 死 + 了”结构中“死”的语义,以期为跨语言学习者提供一些参考,促进文化的交流与理解。The construction “v/adj + dead + 了” is prevalently employed in daily communication;however, cross-cultural learners frequently fail to comprehensively understand the meaning of “dead” and the specific application contexts and characteristics of this structure, thereby giving rise to an exceptionally high error rate. In this paper, from a corpus perspective, over 3500 examples of this structure are collected and sorted from both literary works and everyday spoken language. Commencing from the morphological element “dead,” the paper contrasts the evolution of the meaning of the word “dead” from antiquity to the present, selects 132 words composed of the morphological element “dead,” and analyzes their principal types of word formation. Additionally, it analyzes the process of the meaning of “dead” becoming abstract and grammaticalized from the aspects of tense, context, and grammatical components, and classifies the prepositional verbs and adjectives in detail, reaching the conclusion that the type of prepositional verb influences the semantics of “v/adj + dead + 了”, in order to provide some references for cross linguistic learners and promote cultural exchange and understanding.
