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氢能是一种清洁无污染、可长期存储的二次能源，在碳达峰、碳中和目标背景下，将在可再生能源占主导地位的能源体系中扮演举足轻重的角色。氢能的绿色制取是实现脱碳的必要前提，综述了氢能绿色制取的关键技术进展。此外，总结了欧洲、日本等地在绿氢制取方面的先进案例，分析电解制氢技术的成本组成以及降低成本的途径。相比于设备成本的降低，低电价对于绿氢成本的影响更大。电极和膜片在碱性电解槽成本中占比最高，而双极板在质子交换膜电解槽成本中占比最高。最后总结了未来中国氢能绿色制取技术发展方向：研究新能源输入对电解槽及制氢系统影响；提高电解槽和系统可靠性与耐久性；提升电解槽关键材料与核心部件自主化研发水平。

Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To explore the function and expression characteristics of the short neuropeptide receptor AhsNPFR in Agasicles hygrophila, and to lay a theoretical foundation for exploring the biological control role of Agasicles hygrophila, in this study, the AhsNPFR gene was cloned using PCR technology and analyzed with bioinformatics software. The spatiotemporal expression profiles of AhsNPFR across different developmental stages and tissues were investigated by quantitative real-time PCR(qPCR). The results showed that the complete sequence of 1 669 bp was obtained, which was found to contain a 1 257 bp open reading frame(ORF), encoding 418 amino acids. The predicted molecular weight was 48.11 ku and the theoretical isoelectric point(pI) was 8.21. AhsNPFR had 7 typical conserved transmembrane domains and belonged to the GPCRs family. Phylogenetic tree analysis showed that AhsNPFR was closely related to Diabrotica virgifera virgifera sNPFR. AhsNPFR gene was expressed throughout the developmental stages tested with the highest expression levels at the first instar larva which was 9.06 times higher than those eggs, the stage with the lowest expression level. The expression level in female adult was significantly higher than that in male adult. The AhsNPFR gene was expressed in different tissues and was significantly highly expressed in the hindgut of the 3rd instar larvae, which was 12.21 times higher than those fat body. The AhsNPFR gene was significantly highly expressed in the hindgut of male and female adults, with no difference expression between the sexes across all tissues. [ABSTRACT FROM AUTHOR]

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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Forensic Medicine / Fayixue Zazhi is the property of Journal of Forensic Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Forensic Medicine / Fayixue Zazhi is the property of Journal of Forensic Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Forensic Medicine / Fayixue Zazhi is the property of Journal of Forensic Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)