152 research outputs found
Characterization of the complete chloroplast genome of ‘Yunning No.1’ lemon (Citrus limon)
No full text‘Yunning No.1’ lemon, a mutant of Eureka lemon, is originally found in Yunnan province of China and is the main cultivated lemon variety there. In this study, we assembled and annotated its chloroplast genome using Illumina Hiseq-2500 whole genome re-sequencing data. Its chloroplast genome is 160,141 bp in size, containing a 87,754 bp large single copy region, a 18,385 bp small single copy region and a pair of 27,001 bp inverted repeat region. Like many citrus species, 114 unique genes (including 80 protein-coding genes, 30 tRNAs and 4 rRNAs) could be identified from the chloroplast genome of ‘Yunning No.1’. Phylogenetic analysis revealed that the ‘Yunning No.1’ chloroplast genome was closest to Citrus maxima
Principal component analysis (PCA) of differentially expressed genes in ’Allen Eureka’ and ’Yunning No. 1’ lemons at each defoliation period.
No full textPrincipal component analysis (PCA) of differentially expressed genes in ’Allen Eureka’ and ’Yunning No. 1’ lemons at each defoliation period.</p
GO functional enrichment of differentially expressed genes in ’Allen Eureka’ and ’Yunning No.1’ lemons at each defoliation period.
No full textGO functional enrichment of differentially expressed genes in ’Allen Eureka’ and ’Yunning No.1’ lemons at each defoliation period.</p
Enrichment of KEGG metabolic pathways of differentially expressed genes in ’Allen Eureka’ and ’Yunning No.1’ lemons at each defoliation period.
No full textEnrichment of KEGG metabolic pathways of differentially expressed genes in ’Allen Eureka’ and ’Yunning No.1’ lemons at each defoliation period.</p
Changes in endogenous hormone contents during different defoliation periods in two lemon varieties, ’Allen Eureka’ and ’Yunning No. 1’ (Significance is the difference between the two varieties; * p < 0.05, ** p < 0.01, *** p < 0.001).
No full textChanges in endogenous hormone contents during different defoliation periods in two lemon varieties, ’Allen Eureka’ and ’Yunning No. 1’ (Significance is the difference between the two varieties; * p < 0.05, ** p < 0.01, *** p < 0.001).</p
Changes in enzyme activities during different defoliation periods in two varieties, ’Allen Eureka’ and ’Yunning No. 1’ (Significance is the difference between the two varieties; * p < 0.05, ** p < 0.01, *** p < 0.001).
No full textChanges in enzyme activities during different defoliation periods in two varieties, ’Allen Eureka’ and ’Yunning No. 1’ (Significance is the difference between the two varieties; * p < 0.05, ** p < 0.01, *** p < 0.001).</p
The Public and Private Dimensions of Chinese Women's Bodies—From Reproductive Policies to Bodily
Get PDFThis study examines the impact of China’s evolving reproductive policies and the recently implemented "cooling-off period" for divorce, underscoring how these shifts implicitly discipline women’s reproductive and marital autonomy. Despite the transition from the "One-Child Policy" to the "Three-Child Policy" appearing to offer increased reproductive choice, women’s decisions are still heavily influenced by family expectations, including pressure to bear male children, the demands of multiple births, and constraints on birthing choices. Such interventions not only intensify psychological pressures but also contribute to social issues like postpartum depression, suicide, and marital instability. By analyzing policies and relevant data, this paper reveals the combined influence of state and family on women’s reproductive behaviors and explores approaches to balance competing interests among the state, family, and individuals. Key recommendations include strengthening legal protections, expanding social support systems, and promoting cultural change to respect women’s autonomy over their reproductive choices. The broader implications of these policy adjustments emphasize the critical role of reproductive autonomy in achieving gender equality and sustaining social development. This issue transcends national borders, positioning it within the broader global movement for gender autonomy
Study and modelling of the influence of the tempering process on the evolutions of the microstructure, thermomechanical behaviour and quenching residual stress
No full textLa relaxation des contraintes résiduelles de trempe au cours du revenu dépend fortement des évolutions des microstructures et du comportement thermomécanique. Ainsi, la prévision de l’évolution des contraintes résiduelles nécessite le couplage entre les calculs des champs de température, des transformations de phases, des contraintes et des déformations au cours du traitement. Dans ce travail, nous avons développé un modèle métallurgique pour décrire les cinétiques de précipitation au cour du revenu : la germination, la croissance et la coalescence (ou dissolution) du carbure epsilon et de la cémentite. Ce modèle permet de calculer les évolutions de la composition chimique de la matrice, du type, des distributions de taille des précipités lors du revenu de la martensite d’aciers faiblement alliés. Dans une deuxième étape, nous avons développé un modèle thermomécanique permettant de prédire l’évolution de la contrainte d’écoulement de la martensite revenue, basé sur les évolutions des paramètres microstructuraux obtenus par le modèle métallurgique. Le modèle thermomécanique prend en compte les différents mécanismes de durcissement (durcissement par solution solide, durcissement par les précipités et durcissement par dislocations), et l’effet de la température de déformation. Une validation expérimentale de ces modèles a été menée dans le cas de l’acier 80MnCr5 en s’appuyant sur des résultas obtenus par microscopie électronique à transmission et dilatométrie thermomécanique. Les modèles métallurgique et thermomécanique ont finalement été introduits dans le logiciel de calcul par éléments finis ZeBuLoN pour simuler l’évolution des contraintes internes lors de la trempe et du revenu. Une première analyse de la relaxation des contraintes au cours du revenu a été effectuée.The relaxation of the residual stress during the tempering process is strongly related to the evolutions of the microstructure and thermomechanical properties. Thus, the simulation of the evolution of residual stresses requests the coupling of the temperature field, the phase transformations and the stress and strain evolutions all along the process. In this work, firstly, a metallurgical model has been developed to describe the tempering kinetics: nucleation, growth (or dissolution) and coarsening of the epsilon carbide and the cementite. This model allows to predict the evolutions of the matrix composition, the type, size and distribution of the precipitates during the tempering of martensite for low and middle alloyed steels. Secondly, based on the microstructure parameters calculated by the metallurgical model, a thermomechanical model has been also developed to predict the evolution of the flow stress of tempered martensite. The thermomechanical model not only takes into account the different hardening mechanisms (solution hardening, precipitate hardening and the dislocation hardening), but also the effect of deformation temperature. An experimental validation of the two models has been performed for a 80MnCr5 steel using the results obtained by electron transmission microscopy and thermomechanical dilatometry. Finally, the metallurgical model and the thermomechanical model have been implemented into the finite element calculation software ZeBuLoN to simulate the evolution of internal stress during the quenching and tempering process. A first analysis of the stress relaxation during tempering has been performed
A Study on the Development Path of Dunhuangology and Its Literature Value
No full textDunhuang, known as the Land of Sand in ancient times, is located in the western part of the Ningxia Hui Autonomous Region, bordering Qinghai and Xinjiang. Dunhuang (Mogao Grottoes) culture and art are honored as the cultural museum of the Eastern world. Among existing ancient works and documents, there are massive manuscripts in Tibetan, Uyghur, Sogdian (Yutian), Khotanese, Post Turkic (Hou Tuque), Sanskrit, Kharosthi, Sogdian (Suli), Tocharisch, Syriac, ancient Greek, and other minority languages, which are of great significance to Dunhuangology and resource development. This paper will analyze and summarize the study of Dunhuang science literature
Etude et modélisation de l'effet du revenu sur les évolutions des microstructures, du comportement thermomécanique et des contraintes résiduelles de trempe
No full textThe relaxation of the residual stress during the tempering process is strongly related to the evolutions of the microstructure and thermomechanical properties. Thus, the simulation of the evolution of residual stresses requests the coupling of the temperature field, the phase transformations and the stress and strain evolutions all along the process. In this work, firstly, a metallurgical model has been developed to describe the tempering kinetics: nucleation, growth (or dissolution) and coarsening of the epsilon carbide and the cementite. This model allows to predict the evolutions of the matrix composition, the type, size and distribution of the precipitates during the tempering of martensite for low and middle alloyed steels. Secondly, based on the microstructure parameters calculated by the metallurgical model, a thermomechanical model has been also developed to predict the evolution of the flow stress of tempered martensite. The thermomechanical model not only takes into account the different hardening mechanisms (solution hardening, precipitate hardening and the dislocation hardening), but also the effect of deformation temperature. An experimental validation of the two models has been performed for a 80MnCr5 steel using the results obtained by electron transmission microscopy and thermomechanical dilatometry. Finally, the metallurgical model and the thermomechanical model have been implemented into the finite element calculation software ZeBuLoN to simulate the evolution of internal stress during the quenching and tempering process. A first analysis of the stress relaxation during tempering has been performed.La relaxation des contraintes résiduelles de trempe au cours du revenu dépend fortement des évolutions des microstructures et du comportement thermomécanique. Ainsi, la prévision de l'évolution des contraintes résiduelles nécessite le couplage entre les calculs des champs de température, des transformations de phases, des contraintes et des déformations au cours du traitement. Dans ce travail, nous avons développé un modèle métallurgique pour décrire les cinétiques de précipitation au cour du revenu : la germination, la croissance et la coalescence (ou dissolution) du carbure epsilon et de la cémentite. Ce modèle permet de calculer les évolutions de la composition chimique de la matrice, du type, des distributions de taille des précipités lors du revenu de la martensite d'aciers faiblement alliés. Dans une deuxième étape, nous avons développé un modèle thermomécanique permettant de prédire l'évolution de la contrainte d'écoulement de la martensite revenue, basé sur les évolutions des paramètres microstructuraux obtenus par le modèle métallurgique. Le modèle thermomécanique prend en compte les différents mécanismes de durcissement (durcissement par solution solide, durcissement par les précipités et durcissement par dislocations), et l'effet de la température de déformation. Une validation expérimentale de ces modèles a été menée dans le cas de l'acier 80MnCr5 en s'appuyant sur des résultas obtenus par microscopie électronique à transmission et dilatométrie thermomécanique. Les modèles métallurgique et thermomécanique ont finalement été introduits dans le logiciel de calcul par éléments finis ZeBuLoN pour simuler l'évolution des contraintes internes lors de la trempe et du revenu. Une première analyse de la relaxation des contraintes au cours du revenu a été effectué
- …
