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Leaching kinetics of celestite in nitric acid solutions

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International Journal of Minerals,Metallurgy and Materials 2019年第1期26卷 11-20页

作者： feray Kocan Umran Hicsonmez Faculty of Arts and Sciences Chemistry Department Manisa Celal Bayar University

In this study, strontium nitrate extraction from celestite in nitric acid solutions was investigated using the leaching method. The influences of acid concentration, solid-to-liquid ratio, stirring speed, and reaction temperature on the leaching of strontium from celestite concentrate were studied. The results showed that the leaching rate increased with increasing acid concentration, stirring speed, and temperature and decreased with increasing solid-to-liquid ratio. The particle size was fixed in all of the dissolution experiments. The results showed that the stirring speed and the temperature were the most influential parameters with respect to the leaching process. The kinetic model best fit control by diffusion through the product layer. The activation energy of the dissolution celestite in nitric acid solutions was calculated to be 42.22 kJ/mol.

关键词： dissolution hydrometallurgy leaching kinetics separation strontium nitrate

Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Modular responsive facade proposals based on semi-regular and demi-regular tessellation:daylighting and visual comfort

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Frontiers of Architectural Research 2023年第4期12卷 601-612页

作者： Ecenur Kızılorenli feray Maden Department of Architecture Yasar UniversityIzmir 35100Turkey

Responsive facades can reduce building energy consumption and control daylight and natural ventilation to improve user *** study aims to develop alternative responsive facade systems based on semi-regular and demi-regular *** this purpose,first,the tessellation method used to generate responsive facades is ***,the geometric and parametric design principles and the movement capabilities of the proposed facade systems are ***,a set of analyses are performed to test and compare the performances of the facade systems based on daylight metrics and indoor glare *** study contributes to the literature with the proposed facade systems that can adapt to changing environmental conditions,provide flexibility in shape control and simplicity in mechanism design,and improve building *** analysis results show that all the proposed facade systems provide the desired visual comfort and daylight levels at different configurations.

关键词： Responsive facades Semi-regular tessellation Demi-regular tessellation Parametric design Daylight performance

Medical nutritional therapy for renal transplantation in the cOVID-19 pandemic

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World Journal of Transplantation 2021年第6期11卷 212-219页

作者： Gamze Akbulut feray Gencer-Bingol Department of Nutrition and Dietetics Faculty of Health SciencesGazi UniversityAnkara 06490Turkey

Nutritional therapy is very important at renal *** has become more vital for transplantation patients owing to the coronavirus disease 2019(cOVID-19)*** nutrition can negatively affect the immune *** this reason,adequate protein and energy intake should be provided to the ***,overconsumption of saturated fat,sugar,and refined carbohydrates can both negatively affect the immune system and trigger chronic diseases in transplantation *** addition,vitamins and minerals should be monitored and inadequacy should be prevented due to immunomodulatory *** nutritional therapy suitable for the symptoms of renal transplantation patients and preventing comorbidities may reduce the risk and severity of cOVID-19 infection.

关键词： Nutrition Renal transplantation cOVID-19

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/P Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

An Integrated Workflow for DNA Methylation Analysis

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Journal of Genetics and Genomics 2013年第5期40卷 249-260页

作者： Pingchuan Li feray Demirci Gayathri Mahalingam caghan Demirci Mayumi Nakano Blake c.Meyers Department of Plant & Soil Sciences Delaware Biotechnology InstituteUniversity of DelawareNewarkDE 19711USA

The analysis of cytosine methylation provides a new way to assess and describe epigenetic regulation at a whole-genome level in many *** methylation has a demonstrated role in the genome stability and protection,regulation of gene expression and many other aspects of genome function and ***-seq is a relatively unbiased method for profiling the DNA methylation,with a resolution capable of measuring methylation at individual *** we describe,as an example,a workflow to handle DNA methylation analysis,from BS-seq library preparation to the data *** describe some applications for the analysis and interpretation of these *** laboratory provides public access to plant DNA methylation data via visualization tools available at our ＂Next-Gen Sequence＂ websites（http：//***）,along with small RNA,RNA-seq and other data types.

关键词： DNA methylation BS-seq Epigenetics

Ocular complications of Strabismus Surgery

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Surgical Science 2014年第9期5卷 397-402页

作者： Nazife Sefi Yurdakul feray Koc Department of Ophthalmology Izmir Atatürk Education and Research HospitalIzmirTurkey

Background: To evaluate ocular complications of strabismus surgery at the Department of Strabismus and Neuroophthalmology in our clinic. Methods: The medical records of patients who underwent strabismus surgery between March 1999 and February 2013 were retrospectively reviewed. Patients with minor ocular complications such as wound irregularities, conjunctivitis, subconjunctival hemorrhage, and less than six-month follow-up periods were excluded from the study. Employed strabismus surgeries included recessions, resections, muscle advancements, inferior oblique myectomies, and muscle transpositions. Results: Our case series are comprised of 1468 patients who underwent strabismus surgery. The ages of the patients ranged from 6 to 80 years. Recognized primary ocular complications were noted in eight patients (0.5%). Scleral perforation with retinal break was observed in one myopic patient during retrobulbar anesthesia. Medial rectus rupture occurred during medial rectus recession in one patient with chronic complete sixth nerve palsy. conjunctival cyst occured postoperatively in one patient with partially refractive accommodative esotropia who had bilateral medial rectus recession. corneal dellen developed postoperatively in five patients with exotropia. conclusion: Ocular complications of strabismus surgery are usually treatable. Damage to ocular structures can be prevented by meticulous surgical approach. close postoperative follow-up is required in all cases.

关键词： complications Strabismus Surgery

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul c.Khot chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory