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中国货币数字化对中加贸易与投资的影响之研究

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中国货币数字化对中加贸易与投资的影响之研究

作者： samuel Zumah Mwinzumah 吉林大学

学位级别：硕士

题为《中国与加纳的经济外交:数字化人民币及其对加纳贸易和投资的影响》的研究,深入探讨了中国的数字化人民币对中国与加纳经济关系的深远影响。该研究的核心关注点是理解数字化人民币的采用对两国之间贸易和投资状况的影响。该研究认... 详细信息

题为《中国与加纳的经济外交:数字化人民币及其对加纳贸易和投资的影响》的研究,深入探讨了中国的数字化人民币对中国与加纳经济关系的深远影响。该研究的核心关注点是理解数字化人民币的采用对两国之间贸易和投资状况的影响。该研究认识到理解数字货币所带来的全球影响的重要性,特别是在中国与加纳的经济交往背景下,诸如人民币汇率变化、经济政策的不确定性和“一带一路”倡议等被认为是塑造数字化对经济活动产生更广泛影响的关键因素。研究问题围绕着数字化人民币在推动经济贸易和加强投资方面所具有的变革性潜力展开。研究认为,人民币的数字化将促进金融交易更为顺畅,降低风险,并最终加强中国和加纳之间的经济联系。这项研究的意义在于其能够较好的解释中国与加纳之间经济外交的复杂状态。通过调查数字化人民币对经济贸易和投资的影响,该研究为决策者制定促进经济增长和金融稳定的总体战略提供了可参考的建议。此外,该研究还揭示了数字化人民币的国际化对全球而言所具有的意义及影响,为加纳应对数字化货币的演变格局提供了重要指导。该研究致力于促进对数字货币的采用如何塑造全球主要参与者和新兴经济体之间的经济外交和国际关系的理解。本论文共分为六个章节。本研究第一章介绍关于数字化人民币对全球金融市场的影响及意义的整体背景,特别是有关于中国与加纳的经济交往状况。该部分讨论了如人民币汇率变化、经济政策的不确定性和“一带一路”倡议等因素,将数字化货币对经济活动产生的更广泛影响进行框架化处理。主要研究问题集中于中国与加纳的经济外交,以及数字化人民币对贸易和投资的影响。该章认为,人民币数字化将通过促进金融交易的更畅通、降低风险和加强经济联系来增强中国和加纳的经济往来。该研究旨在揭示经济外交的复杂动态,为政府当局采取恰当的决策提供见解,并揭示数字化人民币国际化的全球影响。文献综述部分整合了相关研究学术著作的关键课题,为此研究打下坚实的基础,同时,本研究采用具有严格标准的系统研究法,以确保所参考的45篇文章的可信度。第二章对中国与加纳的经济外交进行了深入的分析,重点是推进人民币数字化。该部分首先追溯了自1960年以来,中国和加纳之间的外交关系的历史背景,强调两国之间不断加深的经济联系,特别是在贸易方面。该章节强调,自2009年以来,中国移民大量涌入加纳,以及他们对当地经济的贡献。这一部分详细介绍了中国在加纳贸易和投资的大幅增长,如制造业、一般贸易、建筑和建造业,特别强调了基础设施的发展,包括道路、桥梁和港口。该章重点说明中国在加纳基础设施建设领域的积极作用,尤其是由中国投资和贷款资助的水力发电等能源项目,布伊大坝水电工程就是一个具有里程碑意义的项目。此外,本章还介绍了“一带一路”倡议框架,展示了其在全球经济中的参与。尽管加纳不是“一带一路”倡议的直接参与者,但这对认识到中国-加纳关系的相似之处有所帮助。第三章探讨了人民币数字化对加纳贸易和投资格局的深远影响。该章节重点是讨论数字化人民币的采用及其在促进中国和加纳企业之间的贸易交易中的作用。这一章指出了数字化人民币是如何改善加纳与中国的贸易条件的,其推动了对加纳出口需求的增加,并降低了当地的通货膨胀。该研究深入探讨了中国“一带一路”倡议对地缘政治的影响,将数字化人民币定位为减少对第三方货币依赖的战略工具,此举有可能挑战美元的主导地位。该部分还讨论了投资机会,并强调联合项目和增加人民币在加纳的流动性。此外,本章探讨了数字化人民币与中国维护其在非洲影响力的努力之间的一致性,并考虑到其在偿还债务和包容性金融方面的潜在作用。最终,该研究表明,数字化人民币在简化跨境交易、削减成本、促进金融包容性、以深化中国和加纳之间的经济关系方面具有变革性潜力。第四章探讨了中国在与加纳的贸易和投资关系中采用数字化人民币所面临的挑战和影响。此章节在关于监管和合规问题的部分强调将数字化人民币无缝衔接到现有贸易框架中的重要性,以此来解决诸如跨境监管协调、反洗钱合规和数据安全等问题。人们对加纳的技术转让和经济增长可能遭到干扰而日益感到担忧。关于汇率风险的讨论分析了中国人民银行在数字化人民币管理中的作用及其对汇率波动的影响,此部分探讨了利率、短期资本流动,以及受人民币数字化影响而造成的格局演变之间的复杂互动。有关于金融安全的部分则详细讨论了采用数字化人民币带来的相关挑战,该部分强调安全措施、风险管理的重要性及其与数字金融服务之间越发深刻的相关性。数字化货币对隐私保护所造成的挑战最为明显,需要解决监管、操作和用户相关的因素。政治风险部分探讨了监管环境、地缘政治动态和制度框架之间的相互作用,考虑到了政府的稳定性、政策连续性以及技术在应对中国-加纳经济外交挑战中的作用。本章最后阐明了人民币数字化所面临的全球挑战和机遇,概述了全球采用数字化人民币进行跨境支付的障碍,并探索了地缘政治因素所创造的潜

关键词：中国数字化人民币经济外交加纳贸易和投资

Fukushima wastewater release:unanswered questions and global concerns

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International Journal of Agricultural and Biological Engineering 2024年第2期17卷 289-290页

作者： samuel Ariyo Okaiyeto Parag Prakash Sutar Arun SMujumdar Hongwei Xiao College of Engineering China Agricultural UniversityBeijing 100083China Department of Food Process Engineering National Institute of Technology RourkelaRourkela 769008India Department of Bioresource Engineering McGill UniversitySte.Anne de BellevueQuebecCanada

The decision by Japan to begin discharging the Fukushima wastewater into the ocean on August 24,2023 was followed by protests from several countries,including China,Russia,Korea,Vietnam,and deep concerns from the international *** decision is related to the aftermath of the Fukushima Daiichi nuclear disaster that occurred in 2011,which destroyed the cooling system of the nuclear power plant and caused the reactor cores to *** water was used to cool down the reactors fuel rods;about 1.3 million cubic meters contaminated water with highly radioactive material was generated,which can fill more than 500 Olympic swimming pools[1].In order to reduce the levels of radioactivity,an Advanced Liquid Processing System(ALPS)was used to remove most radioactive contaminants from *** works by circulating water through a system of tanks and filters,which removes specific contaminants such as cesium and strontium,using a multi-step process that includes coagulation,flocculation,ion exchange,and absorption[1].Japan's government and some scientists have argued that the ALPS-treated water is safe for release into the *** to their claims,the discharged water poses minimal risk to human health and the ***,concerns about the long-term effects of this discharge remain in scientists′minds.

关键词： Fukushima wastewater nuclear disaster discharge radioactive contaminants

Constrained re-calibration of two-equation Reynolds-averaged Navier–Stokes models

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Theoretical & Applied Mechanics Letters 2024年第2期14卷 82-89页

作者： Yuanwei Bin Xiaohan Hu Jiaqi Li samuel J.Grauer Xiang I.A.Yang Department of Mechanical Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing 100871China College of Engineering Peking UniversityBeijing 100871China

Machine-learned augmentations to turbulence models can be advantageous for flows within the training dataset but can often cause harm *** lack of generalizability arises because the constants(as well as the functions)in a Reynolds-averaged Navier–Stokes(RANS)model are coupled,and un-constrained re-calibration of these constants(and functions)can disrupt the calibrations of the baseline model,the preservation of which is critical to the model's *** safeguard the behaviors of the baseline model beyond the training dataset,machine learning must be constrained such that basic calibrations like the law of the wall are kept *** letter aims to identify such constraints in two-equation RANS models so that future machine learning work can be performed without violating these *** demonstrate that the identified constraints are not ***,they help preserve the generalizability of the baseline model.

关键词： Machine learning Turbulence modeling Reynolds-averaged Navier-Stokes

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Neural Regeneration Research 2025年第2期20卷 366-377页

作者： samuel Abokyi Dennis Yan-yin Tse School of Optometry The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Research Center for SHARP Vision The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Center for Eye and Vision Research Sha TinHong Kong Special Administrative RegionChina

Retinal aging has been recognized as a significant risk factor for various retinal disorders,including diabetic retinopathy,age-related macular degeneration,and glaucoma,following a growing understanding of the molecular underpinnings of their *** comprehensive review explores the mechanisms of retinal aging and investigates potential neuroprotective approaches,focusing on the activation of transcription factor *** meta-analyses have demonstrated promising outcomes of transcription factor EB-targeted strategies,such as exercise,calorie restriction,rapamycin,and metformin,in patients and animal models of these common retinal *** review critically assesses the role of transcription factor EB in retinal biology during aging,its neuroprotective effects,and its therapeutic potential for retinal *** impact of transcription factor EB on retinal aging is cell-specific,influencing metabolic reprogramming and energy homeostasis in retinal neurons through the regulation of mitochondrial quality control and nutrient-sensing *** vascular endothelial cells,transcription factor EB controls important processes,including endothelial cell proliferation,endothelial tube formation,and nitric oxide levels,thereby influencing the inner blood-retinal barrier,angiogenesis,and retinal ***,transcription factor EB affects vascular smooth muscle cells,inhibiting vascular calcification and *** retinal pigment epithelial cells,transcription factor EB modulates functions such as autophagy,lysosomal dynamics,and clearance of the aging pigment lipofuscin,thereby promoting photoreceptor survival and regulating vascular endothelial growth factor A expression involved in *** cell-specific functions of transcription factor EB significantly impact retinal aging mechanisms encompassing proteostasis,neuronal synapse plasticity,energy metabolism,microvasculature,and inflammation,ultimately offering pro

关键词： age-related macular degeneration anti-aging interventions autophagy calorie restriction diabetic retinopathy exercise glaucoma neuromodulation phagocytosis photoreceptor outer segment degradation retinal aging transcription factor EB

The function of doping nitrogen on removing fluoride with decomposing La-MOF-NH_2:Density functional theory calculation and experiments

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Journal of Environmental Sciences 2024年第1期135卷 118-129页

作者： Hongguo Zhang KuilinWan Jia Yan Qian Li Yufang Guo Lei Huang samuel Raj Babu Arulmani Jian Luo School of Environmental Science and Engineering Guangzhou UniversityGuangzhou 510006China Guangzhou University-Linkoping University Research Center on Urban Sustainable Development Guangzhou UniversityGuangzhou 510006China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Fluoride is an important pollutant in wastewater,and adsorption is an effective way to remove *** nitrogen plays an important role in adsorbent materials,computational models were developed to understand the changes in work function resulting from nitrogen ***-N-C-800℃,was prepared by pyrolyzing La-MOF-NH_(2)to verify the influence on the performance of removing fluoride by *** and electrochemical performance tests were performed to characterize La-N-C-800℃.Adsorption kinetics,adsorption thermodynamics,initial concentrations,pH,and ions competition were investigated using La-N-C-800℃for fluoride *** addition,density functional theory was applied to evaluate the function of *** nitrogen atoms were added,the density of states,partial density of states,populations,and different orbits of charge were calculated to discover deep *** strengthened the carbon structure and La_(2)O_(3)structure to remove *** addition,nitrogen can also act as an adsorption site in the carbon *** results provide design ideas for improving the performance of adsorbent materials by doping elements.

关键词： Capacitive deionization Fluoride La-MOFs Doping nitrogen

Exceptional catalytic effect of novel rGO-supported Ni-Nb nanocomposite on the hydrogen storage properties of MgH_(2)

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Journal of Materials Science & Technology 2024年第5期172卷 83-93页

作者： samuel Guemou Liuting Zhang Shuai Li Yiqun Jiang Tao Zhong Zichuan Lu Ren Zhou Fuying Wu Qian Li School of Energy and Power Instrumental Analysis CenterJiangsu University of Science and TechnologyZhenjiang 212003China National Engineering Research Center for Magnesium Alloys&National Key Laboratory of Advanced Casting Technologies&College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Institute of New Energy Storage Materials and Equipment Chongqing 401135China Max Planck Institute for Iron Research Düsseldorf 40237Germany

The design of an excellent active catalyst to improve the sluggish kinetic and thermodynamic properties of magnesium hydride(MgH_(2))remains a great challenge to achieve its practical *** this study,a novel Ni-Nb/rGO nanocomposite catalyst was successfully prepared by one-spot hydrothermal and sub-sequent calcination *** novel Ni-Nb/rGO nanocomposite exhibits an exceptional catalytic effect on improving MgH_(2) sorption ***,the onset desorption temperature of MgH_(2)+10 wt%Ni-Nb/rGO composite is reduced to 198℃,much lower than that of undoped MgH_(2)(330℃).In-terestingly,the composite can release 5.0,5.9,and 6.0 wt%H_(2) within 10 min at 245,260,and 275℃,***,the dehydrogenated MgH_(2)+10 wt%Ni-Nb/rGO composite starts to absorb hydrogen even at room temperature with approximate 2.75 wt%H_(2) uptake at 75℃under 3 MPa H_(2) pressure within 30 min and exhibits excellent stability by maintaining 6.0 wt%hydrogen content after 20 cycles at 300℃.Chou’s model suggests that the de/hydrogenation kinetics of Ni-Nb/rGO-modified MgH_(2) switches from surface penetration model to diffusion model at lower ***,the ac-tivation energies(E a)for the de/hydrogenation of MgH_(2)+10 wt%Ni-Nb/rGO are reduced to 57.8 kJ/mol and 33.9 kJ/mol,which are significantly lower than those of undoped MgH_(2).The work demonstrates that the addition of a novel ternary Ni-Nb/rGO catalyst is an effective strategy to not only boost the sorption kinetics of MgH_(2) but also maintain its cycling property.

关键词： Hydrogen storage materials Magnesium hydride Ni-Nb/rGO Kinetic analysis Catalytic mechanism

Prevalence and intensity of urinary schistosomiasis and soil-transmitted helminths among women of reproductive age in Mwaluphamba,Kwale

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Asian Pacific Journal of Tropical Medicine 2024年第2期17卷 71-83页

作者： samuel M.Ngui Joseph M.Mwangangi Joachim Richter Josephine W.Ngunjiri Department of Biological Sciences University of EmbuKenya Medical Entomology Kenya Medical Research Institute(KEMRI)Center for Geographic Medicine Research Coast KilifiKenya Institute of International Health Global Health CenterCharitéUniversity MedicineBerlinCorporate Member of Free University and Humboldt University and Berlin Institute of HealthBerlinGermany Swiss Tropical and Public Health Institute BaselSwitzerland Tropical and Infectious Diseases Department of Biological sciencesUniversity of EmbuKenya

Objective:To assess the epidemiology of urinary schistosomiasis and soil-transmitted helminthiasis among women of reproductive age in Mwaluphamba,Kwale County,***:A community-based cross-sectional study design was employed to randomly sample 422 women of reproductive age(15-<50 years)from four villages in Mwaluphamba *** specimens were collected and examined using the Kato-Katz method,while filtration technique was used to analyze urine ***’sociodemographic details were obtained using a standardized ***:Urinary schistosomiasis prevalence was at 4.7%(20/422,95%CI 2.8%-6.9%)while the prevalence of soil-transmitted helminthiasis infection was 4.5%(19/422,95%CI 2.6%-6.7%).The infection intensities of urinary schistosomiasis among the study participants ranged from 1 to 120 eggs/10 mL of urine with median egg count of 18.45 eggs/10 *** patients were diagnosed with light infection,of 56.16 egg/gram and 48.48 egg/gram for Trichuris trichiura and hookworms,*** without latrines had 15.7 times higher risk of having urinary schistosomiasis compared to those with a ***,use of surface water(aOR=1.0,95%CI 0.2-1.4,P=0.010)and crossing the river to go to a place(aOR=1.1,95%CI 0.3-1.6,P=0.009)were statistically significant risk factors for getting urinary *** bivariable regression analysis,defecating around the water source(OR=4.3,95%CI 1.5-12.9)had a statistically significant association with the prevalence of soil-transmitted helminthiasis(P=0.008).Conclusions:This study has given an insight on the prevalence and intensity of urinary schistosomiasis and soil-transmitted helminthiasis in Mwaluphamba location that form a basis for strengthening the control and elimination programmes for these neglected tropical diseases.

关键词： Urinary schistosomiasis Prevalence Soiltransmitted helminths Mwaluphamba

High frequency of severe liver dysfunction in critically ill Dengue patients in the French West Indies

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Journal of Intensive Medicine 2024年第3期4卷 403-404页

作者： Laurent Camous samuel Markowicz Cecile Loraux Julien Jabot Jean David Pommier Réanimation Médicale et Chirurgicale CHU de GuadeloupeChemin ChauvelLes Abymes97139 GuadeloupeFrance Service de Maladies infectieuses et tropicales CHU de GuadeloupeChemin ChauvelLes Abymes97139 GuadeloupeFrance Service de Microbiologie CHU de GuadeloupeChemin ChauvelLes Abymes97139 GuadeloupeFrance Médecine Intensive et Réanimation Centre hospitalier universitaire de la Réunion 97460 Saint-PaulFrance Institut Pasteur de la Guadeloupe Morne Jolivière97183 AbymesFrance

Dear Editor,Dengue is a worldwide zoonosis,transmitted by mosquitoes and highly prevalent in tropical and subtropical *** recent years,its incidence has increased with a massive healthcare burden worldwide[1]and recent climatic changes have expanded the geographic range of the insect vector with described outbreaks in Europe.[2]Most patients present pauci-symptomatic infections,but some patients could present severe manifestations with high reported mortality[[3],[4],[5]]and no specific *** bleeding,hemodynamic failure and various organ damage(cardiac,renal,neurological,and hepatic)are described in severe dengue(SD)patients.[5]In the future,intensivists worldwide will be increasingly treating SD and the spectrum of severe organ impairment should be well known.

关键词： patients mortality expanded

Polyoxidovanadates a new therapeutic alternative for neurodegenerative and aging diseases

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Neural Regeneration Research 2024年第3期19卷 571-577页

作者： Sonia Irais Gonzalez-Cano Gonzalo Flores Jorge Guevara Julio Cesar Morales-Medina samuel Treviño Alfonso Diaz Faculty of Chemical Sciences Benemerita Autonomous University of PueblaPueblaMexico Institute of Physiology Benemerita Autonomous University of PueblaPueblaMexico Department of Biochemistry Faculty of MedicineNational Autonomous University of MexicoMexico CityMexico Animal Reproduction Research Center CINVESTAV-Autonomous University of TlaxcalaTlaxcalaMexico

Aging is a natural phenomenon characterized by a progressive decline in physiological integrity,leading to a deterioration of cognitive function and increasing the risk of suffering from chronic-degenerative diseases,including cardiovascular diseases,osteoporosis,cancer,diabetes,and *** is considered the major risk factor for Parkinson’s and Alzheimer’s disease ***,diabetes and insulin resistance constitute additional risk factors for developing neurodegenerative ***,no treatment can effectively reverse these neurodegenerative ***,some antidiabetic drugs have opened the possibility of being used against neurodegenerative *** the previous framework,Vanadium species have demonstrated a notable antidiabetic *** research group evaluated polyoxidovanadates such as decavanadate and metforminium-decavanadate with preventive and corrective activity on neurodegeneration in brain-specific areas from rats with metabolic *** results suggest that these polyoxidovanadates induce neuronal and cognitive restoration *** review aims to describe the therapeutic potential of polyoxidovanadates as insulin-enhancer agents in the brain,constituting a therapeutic alternative for aging and neurodegenerative diseases.

关键词： Alzheimer’s disease antidiabetic brain cognition diabetes insulin neurodegeneration neuroinflammation oxidative stress Vanadium species