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Electrochemical study of different membrane materials for the fabrication of stable,reproducible and reusable reference electrode

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Journal of Energy Chemistry 2020年第10期29卷 33-41页

作者： nawar k.al-shara Farooq Sher Sania Z.Iqbal Zaman Sajid George Z.Chen Department of Chemical and Environmental Engineering University of NottinghamUniversity ParkNottingham NG72RDUnited Kingdom School of Mechanical Aerospace and Automotive EngineeringFaculty of EngineeringEnvironmental and ComputingCoventry UniversityCoventry CV12JHUnited Kingdom Department of Biochemistry University of AgricultureFaisalabad 38000Pakistan Department of Process Engineering Memorial University of NewfoundlandSt John’s Newfoundland A1B 3×5Canada

Fabrication of stable,reproducible and reusable reference electrodes for low energy and high-temperature steam splitting is of great interest for hydrogen fuel production without anthropogenic carbon dioxide(CO2)*** study has been conducted for the detection of suitable material for the fabrication of novel reference *** the present scenario,this research is designed to fabricate a novel nickel reference electrode by using operating conditions of eutectic molten hydroxide(NaOH-kOH,49-51 mol%)at temperature 300℃in an ion-conducting membrane of alumina and mullite ***,the designed nickel reference electrode has been examined for its reusability and stability by using electrochemical technique and cyclic *** scans of cyclic voltammetry are performed for both membrane fabricated reference electrode.A slight positive shift in oxidation peaks is observed for mullite membrane electrode(64 mV from scan 1 to 5).The stability measurements are noted by changing the scan rate between 50 and 150 mV s−***,the results show that the Ni/Ni(OH)2 reference electrode covered with a mullite membrane is stable and reusable at 300℃temperature without any *** stability and reusability of prepared nickel reference electrode covered by mullite tube in the eutectic molten hydroxide were up to 9 days to carry out an electrochemical investigation,while for alumina tube reference electrode the stability and reliability were up to 3 *** internal electrolytic material and ionic conductance can play an important role for future studies with this reference electrode along with optimisation of temperature and scan rate parameters.

关键词： Renewable energy Hydrogen production Electrode process Cyclic voltammetry Reference electrode and Molten salts

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Design and optimization of electrochemical cell potential for hydrogen gas production

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Journal of Energy Chemistry 2021年第1期30卷 421-427,I0013页

作者： nawar kal-shara Farooq Sher Sania ZIqbal Oliver Curnick George ZChen Department of Chemical and Environmental Engineering Faculty of EngineeringUniversity of NottinghamUniversity ParkNottingham NG72RDUK School of Mechanical Aerospace and Automotive EngineeringFaculty of EngineeringEnvironmental and ComputingCoventry UniversityCoventry CV12JHUK Department of Biochemistry University of AgricultureFaisalabad 38000Pakistan Institute for Future Transport and Cities Coventry UniversityCoventry CV15FBUK Department of Chemical and Environmental Engineering Faculty of Science and EngineeringUniversity of Nottingham Ningbo ChinaUniversity ParkNingbo 315100China

This study deals with the optimization of best working conditions in molten melt for the production of hydrogen(H2) *** research has been carried out on how electrochemical process occurs through steam splitting via molten hydroxide.54 combinations of cathode,anode,temperature and voltage have been investigated for the optimization of best working conditions with molten hydroxide for hydrogen gas *** these electrochemical investigations were carried out at 225 to 300℃ temperature and 1.5 to 2.5 V applied voltage *** current efficiency of 90.5,80.0 and 68.6% has been achieved using stainless steel anodic cell with nickel,stainless steel and platinum working cathode *** nickel cathode,an increase in the current directly affected the hydrogen gas flow rate at *** can be hypothesized from the noted results that increase in current is directly proportional to operating temperature and applied *** values were noted when the applied voltages increased from 1.5 to 2.5 V at 300℃,the flow rate of hydrogen gas increased from 1.5 to 11.3 cm^(3) min^(-1),1.0 to 13 cm^(3) min^(-1) in case of electrolysis@stainless steel and@graphite anode *** is observed that the current efficiency of stainless steel anodic cell was higher than the graphite anodic ***,steam splitting with the help of molten salts has shown an encouraging alternate to current methodology for H2 fuel production.

关键词： Sustainable energy Splitting steam Electrolysis Hydrogen gas production Electrochemical cell and Variable cathodes

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Executive functioning in TBI from rehabilitation to social reintegration: COMPASS^(goal), a randomized controlled trial(grant: 1I01RX000637-01A3 by the VA ORD RR&D, 2013–2016)

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Military Medical Research 2015年第4期3卷 181-200页

作者： alexander V.Libin Joel Scholten Manon Maitland Schladen Ellen Danford nawar shara Walter Penk Jordan Grafman Linda Resnik Dwan Bruner Samantha Cichon Miriam Philmon Brenda Tsai Marc Blackman alexander Dromerick Mental Health Service Washington DC VA Medical Center Med Star National Rehabilitation Hospital Med Star Health Research Institute Physical Medicine and Rehabilitation Service Washington DC VA Medical Center Research Service Washington DC VA Medical Center Texas A&M College of Medicine Rehabilitation Institute of Chicago Research Service Providence VA Medical Center

Background: Traumatic brain injury is a major health problem that frequently leads to deficits in executive function. Self-regulation processes, such as goal-setting, may become disordered after traumatic brain injury, particularly when the frontal regions of the brain and their connections are involved. Such impairments reduce injured veterans' ability to return to work or school and to regain satisfactory personal lives. Understanding the neurologically disabling effects of brain injury on executive function is necessary for both the accurate diagnosis of impairment and the individual tailoring of rehabilitation processes to help returning service members recover independent ***/design: The COMPASSgoal(Community Participation through Self-Efficacy Skills Development) program develops and tests a novel patient-centered intervention framework for community reintegration psychosocial research in veterans with mild traumatic brain injury. COMPASSgoal integrates the principles and best practices of goal self-management. Goal setting is a core skill in self-management training by which persons with chronic health conditions learn to improve their status and decrease symptom effects. Over a three-year period, COMPASSgoal will recruit 110 participants with residual executive dysfunction three months or more post-injury. Inclusion criteria combine both clinical diagnosis and standardized scores that are >1 SD from the normative score on the Frontal Systems Rating Scale. Participants are randomized into two groups: goal-management(intervention) and supported discharge(control). The intervention is administered in eight consecutive, weekly sessions. Assessments occur at enrollment, post-intervention/supported discharge, and three months post-treatment ***: Goal management is part of the "natural language" of rehabilitation. However, collaborative goal-setting between clinicians/case managers and clients can be hindered by the cognitive deficits

关键词： Executive function Traumatic brain injury Goal-setting Community reintegration Veterans Randomized controlled trial Manualized psychosocial intervention

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Review on applications of metastatic lymph node based radiomic assessment in nasopharyngeal carcinoma

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Journal of Cancer Metastasis and Treatment 2023年第1期9卷 328-341页

作者： Po Ling Chan Wan Shun Leung Varut Vardhanabhuti shara W.Y.Lee Jason Y.k.Chan Department of Otorhinolaryngology Head and Neck SurgeryThe Chinese University of Hong KongHong KongChina Department of Health Technology and Informatics The Hong Kong Polytechnic UniversityHong KongChina Department of Diagnostic Radiology The University of Hong KongHong KongChina

Nasopharyngeal carcinoma(NPC)has a distinct geographical prevalence in Southern China and Southeast Asia with a high overall survival rate(>90%)in the early stage of the ***,almost 85%of patients suffer from the locally advanced disease with nodal metastasis at *** overall survival rate would drastically drop to 63%.In addition to the generic tumor,nodal,and metastasis(TNM)staging,radiomic studies focusing on primary nasopharyngeal tumors have gained attention in precision medicine with artificial *** the heterogeneous presentation of cervical lymphadenopathy in locally advanced NPC is regarded as the same clinical stage under TNM criteria,radiomic analysis provides more insights into risk stratification,treatment differentiation,and survival *** appears to be a lack of a review that consolidates radiomics-related studies on lymph node metastasis in *** aim of this paper is to summarize the state-of-the-art of radiomics for lymph node analysis in NPC,including its potential use in prognostic prediction,treatment response,and overall survival for this cohort of patients.

关键词： Nasopharyngeal carcinoma radiomics deep learning NPC nodal metastasis artificial intelligence review head and neck oncology cervical lymphadenopathy

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Growth Rate of kappaphycus striatum var cottonii at Different Positions of the Cultivation Lines to the Direction of Water Current

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Journal of Agricultural Science and Technology(B) 2018年第8期8卷 517-521页

作者： Cherry Nian Jainal Akrim Didang shara Jumah Rafsanjani Samimi Aquaculture Department College of Fisheries Mindanao State University-Tawi-Tawi College of Technology and Oceanography Sanga-Sanga Bongao Tawi-Tawi 7500 Philippines Multi-Species Hatchery College of Fisheries Mindanao State University-Tawi-Tawi College of Technology and Oceanography Sanga-Sanga Bongao Tawi-Tawi 7500 Philippines

The study was conducted to determine the effects of different positions in cultivation lines towards the direction of water current on growth rate of kappaphycus striatum var. cottonii for a duration of 45 d at 4°30′9.36″ N and 119°22′6.8″ E of Bungin Pondohan, Sitangkai, Tawi-Tawi. The experiment has three treatments;the parallel (T1), perpendicular (T2) and diagonal (T3) positions towards the direction of water current with five replicates in each treatment following the randomized complete block design (RCBD). Results showed that higher mean weight of 473 g and growth increment of 8.3 g/d were obtained from T3, although not significantly different from T1 and T2 with 431 g and 7.4 g/d, and 408 g and 6.8 g/d, respectively (p>0.05). However, results showed statistically similar growth rates of k. striatum var cottonii among all treatments. Thus, the positions of cultivation lines with respect to the direction of the current have no significant effect on the growth of the said seaweed species. Hence, the treatments used are viable in growing k. striatum var. cottonii in the selected study site.

关键词： Cultivation diagonal kappaphycus striatum var cottonii parallel perpendicular.

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Enhanced Ferroelectric and Converse Piezoelectric Properties of Dense Lead-Free Na0.4k0.1Bi0.5TiO3Ceramics for Actuator Applications

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Advances in Materials Physics and Chemistry 2019年第1期9卷 1-10页

作者： N.shara Sowmya Pravin Varade Narayanan Venkataramani Ajit R.kulkarni Department of Metallurgical Engineering and Materials Science Indian Institute of Technology BombayMumbaiIndia

In this work, lead-free Na0.4Bi0.5 TiO3-k0.1Bi0.5TiO3 (NkBT) piezoelectric ceramics were prepared by the solid-state reaction method and their structural, ferroelectric and dielectric properties were systematically studied. NkBT sintered at 1150℃ for 4 h exhibited highly dense (96% - 98% of the theoretical density) and uniform grains of size 1.1 μm. The coexistence of tetragonal (P4bm) and rhombohedral (R3c) phases due to the presence of morphotrophic phase boundary for the chosen composition has been confirmed by the Rietveld refinement studies. Enhanced ferroelectric properties such as remnant polarization (Pr) and coercive field (EC) are found to be 37 μC/cm2 and 30 kV/cm, respectively. The optimized synthesis procedure for NkBT ceramics resulted in enhanced strain (%) and converse piezoelectric coefficient (d33*) of 0.3 % and 554 pm/V which is attributed to smaller grain size and switching of non 180o domains. NkBT ceramics with such excellent piezoelectric properties can be considered as a promising candidate for actuator applications.

关键词： Lead-Free Piezoelectric Morphotropic Phase Boundary Converse Piezoelectric Coefficient Actuator

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Determination of the Place of Implementation of a Biorefinery Based on Logistics Parameters

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Journal of Power and Energy Engineering 2022年第5期10卷 22-38页

作者： shara k. M. J. Leal Yordanka R. Cruz Vinicius Rossa Gisel Ch. Díaz Yedier R. Padrón Donato A. G. Aranda Rene G. Carlíz School of Chemistry Federal University of Rio de Janeiro Rio de Janeiro Brazil Institute of Chemistry Fluminense Federal University Niterói Brazil

Airlines and the aviation industry are committed to emission reduction targets. Biokerosene was pointed out as one of the key elements to achieving this goal. The use of oilseeds in the production of biokerosene is interesting due to the great Brazilian experience in the production of biofuels from this raw material. In view of this scenario, this dissertation has as its main objective the definition of the place of implantation of a biorefinery in Brazilian territory that has aviation biokerosene as its main product. For this, data on supply and demand for fossil aviation kerosene in Brazilian regions were collected, an extensive review was carried out in scientific articles on the oleaginous raw materials used for the production of this biofuel, and logistical parameters were selected and used as criteria for that selection. The oilseeds selected for the production of biofuel were macaúba and soybean and the state was chosen for the implementation of the biorefinery was Goiás. Based on logistical parameters, the city of Formosa (GO) was selected to host the biorefinery. The soybean crushers located in Luziania, Anápolis, Ipameri, and Itumbiara were chosen as suppliers of soybean oil and the city of Formosa (GO) as the headquarters for the commercial planting of macaúba. The destination of this fuel will be Petrobrás Distribuidora S.A., an aviation fuel distributor authorized by the ANP based in the city of Brasília (DF).

关键词： Biokerosene Biofuels Oilseeds Biorefinery Aviation

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局部组成模型在三元电解质溶液中的应用

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新疆石油学院学报 2002年第2期14卷 65-67页

作者：黄雪莉米娜瓦尔新疆大学化学化工学院乌鲁木齐830046

应用电解质溶液的局部组成模型对新疆罗布泊地区的杂硝矾矿所属体系k+ ,Na+ Cl-,SO42 -,NO3 -,H2 O所包含的九个三元子体系进行了热力学关联 ,结果较好 ,同时获得了建立k+ ,Na+ Cl-,SO42 -,NO3 -,H2

关键词：局部组成模型三元电解质溶液应用新疆罗布泊硝酸钾矿

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