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Slope stability of reclaimed coal mines through a new water filling index

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 828-839页

作者： Antonios Mikroutsikos Alexandros I.Theocharis Nikolaos C.Koukouzas Ioannis E.Zevgolis Chemical Process&Energy Resources Institute Centre for Research&Technology HellasAthensGreece School of Mining and Metallurgical Engineering National Technical University of AthensAthensGreece

A common reclamation practice for closed coal surface mines is filling them with water to form pit *** creation and sustainability of these lakes are significantly affected by the stability of the corresponding *** present study provides a general framework for analyzing the water filling’s effect on slope stability based on a new water filling index,which can indirectly consider the factors affecting the process and efficiently quantify the filling speed’s *** assumptions of the proposed approach are thoroughly discussed,and the range of the water filling index is ***,the safety factor is calculated using the finite element method with the shear strength reduction technique during the filling process for various conditions(soil properties,slope geometry,hydraulic conditions,and water filling speed).Results are presented as normalized stability charts for practical *** the water filling,the stability gradually decreases until the reservoir reaches a critical level of 10%e40%of the total height;it then increases to even more stable conditions than the initial ***,the present analysis allows for the preliminary stability evaluation of a coal mine during the formation of a pit lake and the appropriate quantification of the water filling’s effect.

关键词： Post-coal era Open-pit flooding Stability charts Critical level

Reconstruction of Postinfarcted Cardiac Functions Through Injection of Tanshinone ⅡA@Reactive Oxygen Species-Sensitive Microspheres Encapsulated in a Thermoreversible Hydrogel

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Energy & Environmental Materials 2024年第2期7卷 187-199页

作者： Ling Yu Yubin Liang Lei Gao Peipei Chen Zhiqiang Yu Minzhou Zhang Aleksander Hinek Shuai Mao Second Clinical College Guangzhou University of Chinese MedicineGuangzhou 510120China Department of Critical Care Medicine Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120China Guangdong Provincial Branch of National Clinical research centre for Chinese Medicine cardiology Guangzhou 510120China Department of Radiation Medicine and Applied Sciences University of California San DiegoLa JollaCalifornia 92093USA Department of Laboratory Medicine Dongguan Institute of Clinical Cancer ResearchAffiliated Dongguan HospitalSouthern Medical UniversityDongguan 523018China Translational Medicine Hospital for Sick ChildrenToronto M5G 0A4Canada

Myocardial damage resulting from acute myocardial infarction often leads to progressive heart failure and sudden death,highlighting the urgent clinical need for effective ***,tanshinoneⅡA has been identified as a promising therapeutic agent for myocardial ***,efficient delivery remains a major issue that limits clinical *** address this problem,an injectable thermosensitive poly(lactic acid-co-glycolic acid)-block-poly(ethylene glycol)-block-poly(lactic acid-co-glycolic acid)gel(PLGA-PEG-PLGA)system encapsulating tanshinoneⅡA-loaded reactive oxygen species-sensitive microspheres(Gel-MS/tanshinoneⅡA)has been designed and synthesized in this *** thermosensitive hydrogel exhibits good mechanical properties after reaching body *** initially immobilized by the gel exhibit excellent reactive oxygen species-triggered release properties in a high-reactive oxygen species environment after myocardial infarction *** a result,encapsulated tanshinoneⅡA is effectively released into the infarcted myocardium,where it exerts local anti-pyroptotic and anti-inflammatory ***,the combined advantages of this technique contribute to the mitigation of left ventricular remodeling and the restoration of cardiac function following tanshinoneⅡ***,this novel,precision-guided intra-tissue therapeutic system allows for customized local release of tanshinoneⅡA,presenting a promising alternative treatment strategy aimed at inducing beneficial ventricular remodeling in the post-infarct heart.

关键词： myocardial infarction ROS-sensitive polymer tanshinoneⅡA thermoreversible hydrogel ventricular remodeling

Enhancing Canola Yield and Photosynthesis under Water Stress with Hydrogel Polymers

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1623-1645页

作者： Elham A.Badr Gehan Sh.Bakhoum Mervat Sh.Sadak Ibrahim Al-Ashkar Mohammad Sohidul Islam Ayman El Sabagh Magdi T.Abdelhamid Field Crops research Department National Research CentreCairo12622Egypt Botany Department National Research CentreCairo12622Egypt Plant Production Department College of Food and Agriculture SciencesKing Saud UniversityRiyadh12271Saudi Arabia Department of Agronomy Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh Department of Field Crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33516Egypt Department of research Centers Montana State UniversityBozemanMT 59717USA

While Egypt’s canola production per unit area has recently grown,productivity remains low,necessitating increased *** are water-absorbent polymer compounds that can optimize irrigation schedules by increasing the soil’s ability to retain ***,twoﬁeld experiments were conducted to examine hydrogel application to sandy soil on canola growth,biochemical aspects,yield,yield traits,and nutritional quality of yielded seeds grown under water deﬁcit stress *** experiments were conducted by arranging a split-plot layout in a randomized complete block design(RCBD)with three times replications of each *** water stress at 75%or 50%of crop evapotranspiration(ETc)lowered chlorophyll a,chlorophyll b,caro-tenoids,and total pigments content,indole-3-acetic acid,plant development,seed yield,and oil and total carbo-hydrates of seed yield,hydrogel treatment enhanced all of the traits mentioned ***,hydrogel enhanced to gather compatible solutes(proline,amino acids,total soluble sugars),phenolics content in leaves,seed protein,and crop water productivity,which increased while the plants were under water *** results revealed that the full irrigation(100%ETc)along with hydrogel compared to water-stressed(50%ETc)led to enhanced seed yield(kg ha^(-1)),Oil(%),and Total carbohydrates(%)of rapeseed by 57.1%,11.1%and 15.7%,***,under water-stressed plots with hydrogel exhibited enhancement by 10.0%,3.2%and 5.1%in seed yield(kg ha^(-1)),oil(%),and total carbohydrates(%)of rapeseed by 57.1%,11.1%and 15.7%,respec-tively compared to *** a result,the use of hydrogel polymer will be a viable and practical solution for increasing agricultural output under water deﬁcit stress situations.

关键词： Hydrogel oil osmolytes rapeseed yield water stress

Sparing Treatment of Thoracic and Abdominal Aortic Aneurysms

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Health 2018年第4期10卷 458-466页

作者： V. P. Krylov D. E. Shevtsov G. A. Popel A. S. Zhigalkovich V. N. Gaiduk L. I. Reut A. L. Smolyakov L. G. Shestakova N. V. Mankevich Belarusian Association of Physicians republican research and practical centre “cardiology” Minsk Belarus

A comparison of results of sparing treatment obtained at 2, 4 and 6 years of follow-up in subjects with descending aortic atherosclerotic aneurysms (DAAs), and during the period between 1.5 and 8.9 years in subjects with dissecting thoracoabdominal aortic aneurysms (DTAAs) has been made. All subjects received conservative treatment to maintain optimal levels of BP, cholesterol and LDL cholesterol, as well as to reduce oxidative and inflammatory processes in aorta, strengthen aortic walls and stabilize the course of the disease. Rapid negative changes (diameter increased by more than 5 mm within a 6-month period) and the absence of contraindications for surgery prompted us to perform open or endovascular aortic repair. Available data suggest that both DAAs and TAAs are comorbidities, which at any time can abruptly terminate patient’s life, and operative treatment guarantees no safety from ruptures. When using sparing treatment of DAA, survival rates were 90.1% at 2 years, 76.8% at 4 years, and 59.4% at 6 years, with uniform survival increment mainly due to comorbidity. Survival rate seen in TAA group (81.8%) was more acceptable due to a younger age of patients.

关键词： Atherosclerotic and Dissecting Aneurysms Inflammation Surgical and Medical Treatment Long-Term Results

Photocatalytic application of magnesium spinel ferrite in wastewater remediation:A review

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Journal of Magnesium and Alloys 2024年第2期12卷 490-505页

作者： Rohit Jasrotia Nikhil Jaswal Jyoti Prakash Chan Choon Kit Jagpreet Singh Abhishek Kandwal School of Physics and Materials Science Shoolini UniversityBajholSolanH.P.India Himalayan centre of Excellence in Nanotechnology Shoolini UniversityBajholH.P.India INTI International University Putra NilaiNegeri SembilanMalaysia Department of Chemistry University Centre for Research&Development Chandigarh UniversityMohali140413PunjabIndia Shenzhen Institute of Advanced Technology Chinese Academy of SciencesChina

This review paper explores the efficacy of magnesium ferrite-based catalysts in photocatalytic degradation of organic contaminates(antibiotic and dyes).We report the influence of different doping strategies,synthesis methods,and composite materials on the degradation efficiency of these *** analysis reveals the versatile and promising nature of magnesium ferrite-based catalysts,offering the valuable insights into their practical application for restoring the *** to the smaller band gap and magnetic nature of magnesium ferrite,it holds the benefit of utilising the broader spectrum of light while also being *** in-depth analysis of magnesium ferrites'photocatalytic mechanism could lead to the development of cheap and reliable photocatalyst for the wastewater *** concise review offers a thorough summary of the key advancements in this field,highlighting the pivotal role of the magnesium ferrite based photocatalysts in addressing the pressing global issue of organic pollutants in wastewater.

关键词： Magnesium ferrite Wastewater Dyes Antibiotics Photocatalytic degradation

Corrosion behaviors and kinetics of nanoscale zero-valent iron in water:A review

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Journal of Environmental Sciences 2024年第1期135卷 391-406页

作者： Chenliu Tang Xingyu Wang Yufei Zhang Nuo Liu Xiang Hu research Group of Water Pollution Control and Water Reclamation College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Shanghai Collaborative Innovation centre for WEEE Recycling School of Resources and Environmental EngineeringShanghai Polytechnic UniversityShanghai 201209China

Knowledge on corrosion behaviors and kinetics of nanoscale zero-valent iron(nZVI)in aquatic environment is particularly significant for understanding the reactivity,longevity and stability of nZVI,as well as providing theoretical guidance for developing a cost-effective nZVI-based technology and designing large-scale ***,this review gives a holistic overview on the corrosion behaviors and kinetics of nZVI in ***,Eh-pH diagram is introduced to predict the thermodynamics trend of iron *** morphological,structural,and compositional evolution of(modified-)nZVI under different environmental conditions,assisted with microscopic and spectroscopic evidence,is then ***,common analytical methods and characterization technologies are categorized to establish time-resolved corrosion kinetics of nZVI in ***,stable models for calculating the corrosion rate constant of nZVI as well as electrochemical methods for monitoring the redox reaction are discussed,emphasizing their capabilities in studying the dynamic iron corrosion ***,in the future,more efforts are encouraged to study the corrosion behaviors of nZVI in long-term practical application and further build nanoparticles with precisely tailored *** expect that our work can deepen the understanding of the nZVI chemistry in aquatic environment.

关键词： Nanoscale zero-valent iron(nZVI) Corrosion behaviors Corrosion kinetics nZVI evolution

A Five-Year Experience of Sparing Treatment of Descending Aortic Atherosclerotic Aneurysms

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World Journal of Cardiovascular Surgery 2016年第4期6卷 47-54页

作者： Vladimir Petrovich Krylov Alexander Gennadyevich Mrochek Valentina Nukolaevna Gayduk Leonid Ivanovich Reut Aleksey Leonidovich Smaliakou Nadezhda Vladimirovna Mankevich Roman Nikolaevich Pizhik republican research and practical centre “cardiology” Ministry of Health of the Republic of Belarus Minsk Belarus

A growing number of specialists are now beginning to ascertain that treatment of individuals with descending aortic atherosclerotic aneurysms must be provided by cardiologists on a scheduled basis. Surgery is feasible when there is a risk of aneurysm rupture. It requires for the development of conservative treatments and elaboration of indications for surgery. A total of 97 patients with thoracic aortic atherosclerotic aneurysms (TAAA) and abdominal aortic aneurysms (AAA) have been examined over a 5-year period. They received multifaceted anti-inflammatory medical treatment to strengthen the aortic wall and control its possible expansion. Operative treatment was offered only if there was a risk of aneurysm rupture. One of the principal factors adversely affecting mortality is the presence of co-morbidities requiring permanent medical corrective treatment irrespective of surgical or medical treatment provided. It is also important to outline the indications for surgery based on multifactorial pathogenetic manifestations. Treatment aiming at the reversal of ethiopathogenic mechanisms of disease progression contributes to a significant longer survival in DAA patients.

关键词： Aortic Atherosclerotic Aneurysms Surgical Treatment Conservative Treatment Outcomes

The Role of Progenitor Cells in the Pathogenesis of Arteriosclerosis

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cardiology Discovery 2024年第3期4卷 231-244页

作者： Yuesheng Zhang Ziyin Guan Hui Gong Zhichao Ni Qingzhong Xiao Xiaogang Guo Qingbo Xu Department of cardiology the First Affiliated HospitalZhejiang UniversitySchool of MedicineHangzhouZhejiang 310000China centre for ClinicalPharmacology and Precision Medicine William Harvey Research InstituteFacultyof Medicine and DentistryQueen Mary University of LondonLondonUnitedKingdom

The increasing incidence of arteriosclerosis has become a significant global health *** is characterized by the thickening and hardening of arterial walls,which can lead to the narrowing or complete blockage of blood ***,the pathogenesis of the disease remains incompletely *** research has shown that stem and progenitor cells found in the bone marrow and local vessel walls play a role in the development of arteriosclerosis by differentiating into various types of vascular cells,including endothelial cells,smooth muscle cells,fibroblasts,and inflammatory *** review aims to provide a comprehensive understanding of the role of stem and progenitor cells in the pathogenesis of arteriosclerosis,shedding light on the underlying mechanisms and potential therapeutic approaches for this disease.

关键词： Stem cells Vascular progenitors Endothelial repair Neointimal formation Arteriosclerosis

Nano/Micro-Structural Supramolecular Biopolymers: Innovative Networks with the Boundless Potential in Sustainable Agriculture

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Nano-Micro Letters 2024年第8期16卷 79-101页

作者： Roohallah Saberi Riseh Mohadeseh Hassanisaadi Masoumeh Vatankhah Rajender S.Varma Vijay Kumar Thakur Department of Plant Protection Faculty of AgricultureVali-e-Asr University of RafsanjanImam Khomeini SquareRafsanjan ***Iran centre of Excellence for research in Sustainable Chemistry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil Biorefining and Advanced Materials research Center Scotland’s Rural Collage(SRUC)Edinburgh EH93JGUK

Sustainable agriculture plays a crucial role in meeting the growing global demand for food while minimizing adverse environmental impacts from the overuse of synthetic pesticides and conventional *** this context,renewable biopolymers being more sustainable offer a viable solution to improve agricultural sustainability and ***/micro-structural supramolecular biopolymers are among these innovative biopolymers that are much sought after for their unique *** biomaterials have complex hierarchical structures,great stability,adjustable mechanical strength,stimuli-responsiveness,and self-healing *** molecules may be added to their flexible structure,for enabling novel agricultural *** overview scrutinizes how nano/micro-structural supramolecular biopolymers may radically alter farming practices and solve lingering problems in agricultural sector namely improve agricultural production,soil health,and resource *** bioactive ingredient released from biopolymers allows the tailored administration of agrochemicals,bioactive agents,and biostimulators as they enhance nutrient absorption,moisture retention,and root ***/micro-structural supramolecular biopolymers may protect crops by appending antimicrobials and biosensing entities while their eco-friendliness supports sustainable *** their potential,further studies are warranted to understand and optimize their usage in agricultural *** effort seeks to bridge the knowledge gap by investigating their applications,challenges,and future prospects in the agricultural *** experimental investigations and theoretical modeling,this overview aims to provide valuable insights into the practical implementation and optimization of supramolecular biopolymers in sustainable agriculture,ultimately contributing to the development of innovative and eco-friendly solutions to enhance agricultural productivity while minimizing envir

关键词： Supramolecular Biopolymers Sustainable agriculture Nanotechnology