The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Li, Fēi; Chen, Yuanyuan; Chen, Xin; Cai, Li; Huang, Yuan

doi:10.3390/met11050844

Cited by 13 publications

(10 citation statements)

References 25 publications

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“…In this paper, we report our unexpected observation that the cycloaddition reaction of 1,3-enynes with nitrosoarenes produces 4-acylquinolines in moderate to good yields (Scheme 1d ). 12 This simple, one-pot protocol is characterized by high atom-economy, broad substrate scope, and excellent functional-group tolerance.…”

Section: Table 1 Optimization Of the Reaction Condition...mentioning

confidence: 99%

Modular Synthesis of 4-Acylquinolines via Cycloaddition of 1,3-Enynes and Nitrosoarenes

Kong,

Li,

Diao

2023

Synlett

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Herein, we disclose a FeBr2-promoted cycloaddition of readily available 1,3-enynes and nitrosoarenes, providing a promising platform for the synthesis of privileged 4-acylquinoline scaffolds. This simple one-pot process is characterized by high atom-economy, broad substrates scope, and excellent functional groups tolerance. A possible reaction mechanism was proposed, involving processes such as [4+2] cycloaddition, ring-opening, Aza-Michael addition, and dehydroaromatization.

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Section: Table 1 Optimization Of the Reaction Condition...mentioning

confidence: 99%

Modular Synthesis of 4-Acylquinolines via Cycloaddition of 1,3-Enynes and Nitrosoarenes

Kong,

Li,

Diao

2023

Synlett

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“…Una condición crónica de hiperglucemia ya sea por la baja producción de insulina en las células pancreáticas o por la resistencia a su acción y en consecuencia fallas en la asimilación de glucosa, genera el desabastecimiento del combustible metabólico necesario para el funcionamiento celular, incluido la generación de potenciales de acción en axones neuronales, así como también ocasiona la glicación no enzimática de proteínas, factor que actúa como un elemento neurodegenerativo (19)(20)(21)(22) y que podría contribuir en la aparición de anormalidades micro-estructurales de la materia blanca cerebral (23,24), o anomalías de origen vascular debidas a infartos y micro infartos de la vasculatura cerebral relacionados a procesos de demencia en pacientes con DM2 (25).…”

Section: Diabetesunclassified

“…De acuerdo con Li y Huang (22) los mecanismos implicados en el deterioro cognitivo de pacientes con DM2, así como los mecanismos implicados en el desarrollo de demencia en pacientes con DM2 presentan una ruta común, en la cual la neurodegeneración es consecuencia de las alteraciones metabólicas en los ciclos de glúcidos, envejecimiento, hipertensión, el padecimiento de DM2 por un largo tiempo y elevados niveles de colesterol.…”

Section: Fontbonne Et Al (unclassified

El deterioro cognitivo como una complicación de la Diabetes Mellitus Tipo 2

Matar-Khalil

Rubio-Sandoval²

2021

nova

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Introducción: La Diabetes Mellitus es una enfermedad compleja que impacta la salud pública debido a su alta prevalencia, el costo que implica y complicaciones asociadas como lo es la alteración cognitiva. Metodología: Se realizó una revisión de tema consultando literatura nacional e internacional en bases de datos de ciencias sociales y ciencias de la salud entre los años 1990-2019 que exponen la posible asociación entre la diabetes mellitus y deterioro cognitivo, así como las posibles rutas que lo conllevan. Resultados: La literatura consultada plantea una relación entre la diabetes mellitus y complicaciones del sistema nervioso central, lesiones neurológicas, deficiencias en la capacidad de atención, pérdida de la memoria, deterioro cognitivo, un considerable incremento en el riesgo de desarrollar demencia y demencia tipo Alzheimer, sin embargo, no se evidencia un consenso en el grado de afectación que pueda tener sobre los procesos cognitivos. Conclusiones: La naturaleza progresiva tanto de la diabetes mellitus, así como el riesgo vascular asociado, sugieren la necesidad de realizar prevención del deterioro cognitivo en pacientes diagnosticados con diabetes mellitus, a partir de una evaluación integral que incluya pruebas neuropsicológicas dentro de los exámenes de rutina.

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“…In addition, the heating/cooling path also has a significant impact on rock thermal crack. Previous research has mostly focused on thermal crack under specific paths [28][29][30], and it is necessary to supplement the mechanisms of rock thermal crack under different heating/cooling paths.…”

Section: Introductionmentioning

confidence: 99%

Study on Thermal Crack Characteristics of Granite in Shandong Province, China under Different Temperatures and Heating/Cooling Treatments

Zhang,

Li,

Zhang

et al. 2023

Preprint

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Understanding the thermal cracks of rock caused by high temperature is of great help to the development of underground engineering, such as geothermal mining, underground coal gasification. Although there has been many study on thermal cracking, it is not systematic and in-depth enough. In order to deeply study the thermal crack mechanism of rock, this paper conducted thermal cracking experiments on granite at different temperatures and heating/cooling paths, and qualitative and quantitative analysis was conducted on the crack initiation characteristics, propagation paths, and crack network morphology of rock thermal crack under different test conditions. The thermal crack mechanism was also analyzed from the perspectives of mineral petrology, fracture mechanics, thermodynamics, and other aspects. The research results show that there are two obvious mutation points in the study temperature range for samples with fast cooling paths (SF path: slow heating and fast cooling; FF path: fast heating and fast cooling), around 200-300 ℃ and 600 ℃, respectively, while for samples with slow cooling paths (SS path: slow heating and slow cooling; FS path: fast heating and slow cooling), there is only one mutation point around 600 ℃. The initiation positions of thermal cracking under all temperature paths are relatively similar, with intergranular crack located between particles at the edge of the sample or intercrystalline crack in the middle of feldspar or quartz aggregates. The initiation temperature of SF and FF path specimens is relatively low compared to SS and FS path specimens, and the number and size of cracks is small. The crack network structure formed by the SF path is the most complex, with the largest crack ratio and cumulative crack length; The crack network structure formed by the FF path is relatively complex, with a larger main crack size but relatively fewer secondary cracks; The FS and SS paths do not form a complex network with good connectivity. The process of thermal crack development can be divided into three stages: the development of small cracks, the joint development of main cracks and small cracks, and the connection of cracks into a network structure. The mechanism of thermal crack propagation is that the expansion and thermal conductivity between different crystals are different. The thermal stress caused by temperature gradient and the tension or shear stress caused by the inconsistent deformation of crystals form stress concentration in weak areas such as particles boundary, cleavage, and original cracks. Firstly, it causes some crystals with smaller strength or less rounded shape to crack, and when the combined stress is large, the cracks will gradually expand along the existing fine cracks. This also explains that the most main cracks of the SF and FF path specimens mainly surround some large mineral aggregates or between particles.

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The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Cited by 13 publications

References 25 publications

Modular Synthesis of 4-Acylquinolines via Cycloaddition of 1,3-Enynes and Nitrosoarenes

Modular Synthesis of 4-Acylquinolines via Cycloaddition of 1,3-Enynes and Nitrosoarenes

El deterioro cognitivo como una complicación de la Diabetes Mellitus Tipo 2

Study on Thermal Crack Characteristics of Granite in Shandong Province, China under Different Temperatures and Heating/Cooling Treatments

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