By analyzing the structure and academic characteristics of early Western Han medical texts such as Prescriptions for Fifty-Two Diseases(Wu Shi Er Bing Fang)and Prescriptions for Health Preservation(Yang Sheng Fang),an...By analyzing the structure and academic characteristics of early Western Han medical texts such as Prescriptions for Fifty-Two Diseases(Wu Shi Er Bing Fang)and Prescriptions for Health Preservation(Yang Sheng Fang),and considering the development of philosophical thinking during the pre-Qin and Han periods,this study summarizes how Zhongjing Zhang’s Treatise on Cold Damage and Miscellaneous Diseases(Shang Han Za Bing Lun)inherited pre-Qin and Han philosophical thought while further integrating Daoist“natural law”cosmology,Confucian“benevolence”social ethics,and the“isomorphic unity of heaven and humanity”medical theory in Yellow Emperor’s Inner Classic(Huang Di Nei Jing).It proposes health preservation concepts encompassing heaven-human,body-spirit,and benevolence perspectives,along with dietary hygiene,representing the medical embodiment of pre-Han“virtue cultivation”and“body nurturing”life philosophies that profoundly influenced subsequent traditional Chinese medicine health preservation theory and practice.展开更多
Improvement of mechanical and tribological behaviors of zinc-based die cast alloy is necessary for bearing applications,and chemical modification is found to be a good choice.Chemical modification of Zn-27wt.%Al alloy...Improvement of mechanical and tribological behaviors of zinc-based die cast alloy is necessary for bearing applications,and chemical modification is found to be a good choice.Chemical modification of Zn-27wt.%Al alloy was carried out with 1%,2%and 3%nickel through casting route,and its effect on microstructure,hardness,and dry sliding wear behavior was investigated.Significant refinement of dendritic microstructure is observed along with a transformation from rosette to near rounded morphology with the increase in nickel content of base alloy.With 1%nickel modification,an aluminum-rich Al_(3)Ni intermetallic compound of string type forms in inter dendritic region,while with 2%and 3%nickel modifications,a nickel-rich AlNi3 intermetallic compound of lath/plate type is formed within the intra dendritic region.Hardness of the base alloy is improved through grain boundary strengthening at a lower concentration of nickel,and particulate strengthening and spinodal decomposition are the reason for increase in hardness of the alloy with a higher content of nickel.Coefficient of friction and wear rate of base alloy is decreased with increasing nickel amount.Worn surface is characterized by delamination,smearing and grooving.The wear mechanism is transferred from adhesion to abrasive via oxide film formation with an increase in amount of nickel.展开更多
Accessing drinking water is a global issue. This study aims to contribute to the assessment of groundwater quality in the municipality of Za-Kpota (southern Benin) using remote sensing and Machine Learning. The method...Accessing drinking water is a global issue. This study aims to contribute to the assessment of groundwater quality in the municipality of Za-Kpota (southern Benin) using remote sensing and Machine Learning. The methodological approach used consisted in linking groundwater physico-chemical parameter data collected in the field and in the laboratory using AFNOR 1994 standardized methods to satellite data (Landsat) in order to sketch out a groundwater quality prediction model. The data was processed using QGis (Semi-Automatic Plugin: SCP) and Python (Jupyter Netebook: Prediction) softwares. The results of water analysis from the sampled wells and boreholes indicated that most of the water is acidic (pH varying between 5.59 and 7.83). The water was moderately mineralized, with conductivity values of less than 1500 μs/cm overall (59 µS/cm to 1344 µS/cm), with high concentrations of nitrates and phosphates in places. The dynamics of groundwater quality in the municipality of Za-Kpota between 2008 and 2022 are also marked by a regression in land use units (a regression in vegetation and marshland formation in favor of built-up areas, bare soil, crops and fallow land) revealed by the diachronic analysis of satellite images from 2008, 2013, 2018 and 2022. Surveys of local residents revealed the use of herbicides and pesticides in agricultural fields, which are the main drivers contributing to the groundwater quality deterioration observed in the study area. Field surveys revealed the use of herbicides and pesticides in agricultural fields, which are factors contributing to the deterioration in groundwater quality observed in the study area. The results of the groundwater quality prediction models (ANN, RF and LR) developed led to the conclusion that the model based on Artificial Neural Networks (ANN: R2 = 0.97 and RMSE = 0) is the best for groundwater quality changes modelling in the Za-Kpota municipality.展开更多
基金supported by the Henan Provincial Traditional Chinese Medicine Culture and Management Research Project(TCM2022036)Henan Provincial Traditional Chinese Medicine Culture Publication Funding Special Project(TCMCB2023016)+3 种基金Henan University of Chinese Medicine Research Seedling Project(MP2023-29)National Administration of Traditional Chinese Medicine Science and Technology Project(GZY-KJS-2022-043-1)Henan Culture-Promoting Project Cultural Research Special Project(2022XWH231)National Administration of Traditional Chinese Medicine Science and Technology Project(GZY-KJS-2022-037).
文摘By analyzing the structure and academic characteristics of early Western Han medical texts such as Prescriptions for Fifty-Two Diseases(Wu Shi Er Bing Fang)and Prescriptions for Health Preservation(Yang Sheng Fang),and considering the development of philosophical thinking during the pre-Qin and Han periods,this study summarizes how Zhongjing Zhang’s Treatise on Cold Damage and Miscellaneous Diseases(Shang Han Za Bing Lun)inherited pre-Qin and Han philosophical thought while further integrating Daoist“natural law”cosmology,Confucian“benevolence”social ethics,and the“isomorphic unity of heaven and humanity”medical theory in Yellow Emperor’s Inner Classic(Huang Di Nei Jing).It proposes health preservation concepts encompassing heaven-human,body-spirit,and benevolence perspectives,along with dietary hygiene,representing the medical embodiment of pre-Han“virtue cultivation”and“body nurturing”life philosophies that profoundly influenced subsequent traditional Chinese medicine health preservation theory and practice.
基金Science and Engineering Research Board(SERB),Government of India,New Delhi,India for funding under an R&D project to procure a high-temperature furnace.
文摘Improvement of mechanical and tribological behaviors of zinc-based die cast alloy is necessary for bearing applications,and chemical modification is found to be a good choice.Chemical modification of Zn-27wt.%Al alloy was carried out with 1%,2%and 3%nickel through casting route,and its effect on microstructure,hardness,and dry sliding wear behavior was investigated.Significant refinement of dendritic microstructure is observed along with a transformation from rosette to near rounded morphology with the increase in nickel content of base alloy.With 1%nickel modification,an aluminum-rich Al_(3)Ni intermetallic compound of string type forms in inter dendritic region,while with 2%and 3%nickel modifications,a nickel-rich AlNi3 intermetallic compound of lath/plate type is formed within the intra dendritic region.Hardness of the base alloy is improved through grain boundary strengthening at a lower concentration of nickel,and particulate strengthening and spinodal decomposition are the reason for increase in hardness of the alloy with a higher content of nickel.Coefficient of friction and wear rate of base alloy is decreased with increasing nickel amount.Worn surface is characterized by delamination,smearing and grooving.The wear mechanism is transferred from adhesion to abrasive via oxide film formation with an increase in amount of nickel.
文摘Accessing drinking water is a global issue. This study aims to contribute to the assessment of groundwater quality in the municipality of Za-Kpota (southern Benin) using remote sensing and Machine Learning. The methodological approach used consisted in linking groundwater physico-chemical parameter data collected in the field and in the laboratory using AFNOR 1994 standardized methods to satellite data (Landsat) in order to sketch out a groundwater quality prediction model. The data was processed using QGis (Semi-Automatic Plugin: SCP) and Python (Jupyter Netebook: Prediction) softwares. The results of water analysis from the sampled wells and boreholes indicated that most of the water is acidic (pH varying between 5.59 and 7.83). The water was moderately mineralized, with conductivity values of less than 1500 μs/cm overall (59 µS/cm to 1344 µS/cm), with high concentrations of nitrates and phosphates in places. The dynamics of groundwater quality in the municipality of Za-Kpota between 2008 and 2022 are also marked by a regression in land use units (a regression in vegetation and marshland formation in favor of built-up areas, bare soil, crops and fallow land) revealed by the diachronic analysis of satellite images from 2008, 2013, 2018 and 2022. Surveys of local residents revealed the use of herbicides and pesticides in agricultural fields, which are the main drivers contributing to the groundwater quality deterioration observed in the study area. Field surveys revealed the use of herbicides and pesticides in agricultural fields, which are factors contributing to the deterioration in groundwater quality observed in the study area. The results of the groundwater quality prediction models (ANN, RF and LR) developed led to the conclusion that the model based on Artificial Neural Networks (ANN: R2 = 0.97 and RMSE = 0) is the best for groundwater quality changes modelling in the Za-Kpota municipality.
