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燃料化学学报 2014年第8期42卷 922-931页

作者： huseyin sozen WEI Guo-qiang LI Hai-bin HE Fang HUANG Zhen CAS Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionChinese Academy of Sciences (CAS)

Abstract:The aim of this research is to design and operate a 10 kW hot chemical-looping gasification(CLG)unit using Fe2O3/Al2O3as an oxygen carrier and saw dust as a *** effect of the operation temperature on gas composition in the air reactor and the fuel reactor,and the carbon conversion of biomass to CO2and CO in the fuel reactor have been experimentally studied.A total60 h run has been obtained with the same batch of oxygen carrier of iron oxide supported with *** results show that CO and H2concentrations are increased with increasing temperature in the fuel *** is also found that with increasing fuel reactor temperature,both the amount of residual char in the fuel reactor and CO2concentration of the exit gas from the air reactor are *** conversion rate and gasification efficiency are increased by increasing temperature and H2production at 870℃reaches the highest *** electron microscopy(SEM),X-ray diffraction(XRD)and BET-surface area tests have been used to characterize fresh and reacted oxygen carrier *** results display that the oxygen carrier activity is not declined and the specific surface area of the oxygen carrier particles is not decreased significantly.

关键词： chemical-looping gasification hot model biomass Fe2O3/Al2O3 dual circulating fluidized bed

Experimental Simulation on Chemical-looping Combustion of Cold Model（英文）

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过程工程学报 2014年第1期14卷 47-55页

作者： huseyin sozen 魏国强李海滨何方黄振 Key Laboratory of Renewable Energy and Gas Hydrate Guangzhou Institute of Energy Conversion Chinese Academy of Sciences

The pressure profiles, gas velocities, solid circulation rate, solids flux, residence time distribution of gas and particles in chemical-looping combustion reactors and gas leakage were studied in a cold flow model unit. And these parameters in both air and fuel reactors were measured in the experimental stage. The experimental results show that gas fluidization velocity in the air reactor is 1.8 m/s, gas fluidization velocity in the fuel reactor 0.5 m/s, and the bed materials inventory of the two reactors between 1.2 to 3.15 kg. The first cold flow model results show that the solid circulation rates are sufficient. The appropriate operating conditions are optimized and the summary of final changes is made the on cold model. The proposed design solutions are currently being verified in a cold flow model simulating the actual reactor(hot) system. This paper presents an overview of the research performed on a cold flow model and highlights the current status of the technology.

关键词： CLC 二氧化碳过程工程热力工程

Electron beam lithography on nonplanar and irregular surfaces

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Microsystems & Nanoengineering 2024年第2期10卷 1-23页

作者： Chenxu Zhu huseyin Ekinci Aixi Pan Bo Cui Xiaoli Zhu Department of Electrical and Computer Engineering and Waterloo Institute for Nanotechnology(WIN) University of WaterlooWaterlooONCanada

E-beam lithography is a powerful tool for generating nanostructures and fabricating nanodevices with fine features approaching a few nanometers in ***,alternative approaches to conventional spin coating and development processes are required to optimize the lithography procedure on irregular *** this review,we summarize the state of the art in nanofabrication on irregular substrates using e-beam *** overcome these challenges,unconventional methods have been *** instance,polymeric and nonpolymeric materials can be sprayed or evaporated to form uniform layers of electron-sensitive materials on irregular ***,chemical bonds can be applied to help form polymer brushes or self-assembled monolayers on these *** addition,thermal oxides can serve as resists,as the etching rate in solution changes after e-beam ***,e-beam lithography tools can be combined with cryostages,evaporation systems,and metal deposition chambers for sample development and lift-off while maintaining low *** nanopyramids can be fabricated on an AFM tip by utilizing ice as a positive ***,Ti/Au caps can be patterned around a carbon ***,3D nanostructures can be formed on irregular surfaces by exposing layers of anisole on organic ice surfaces with a focused *** advances in e-beam lithography on irregular substrates,including uniform film coating,instrumentation improvement,and new pattern transferring method development,substantially extend its capabilities in the fabrication and application of nanoscale structures.

关键词： lithography beam coating

生物质化学链气化串行流化床二元物系冷态实验研究

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新能源进展 2014年第1期2卷 18-24页

作者：魏国强何方 huseyin sozen 李小明李海滨中国科学院广州能源研究所中国科学院可再生能源重点实验室广州510640

搭建了生物质化学链气化串行流化床冷态模型,考察了木粉与石英砂二元物系在不同工况下的流化特性,结果表明,木粉单独实现流化较为困难,稳定流态化操作范围也较小;石英砂木粉二元物系,随着石英砂含量的增加,流化状态持续改善,稳态流化操... 详细信息

搭建了生物质化学链气化串行流化床冷态模型,考察了木粉与石英砂二元物系在不同工况下的流化特性,结果表明,木粉单独实现流化较为困难,稳定流态化操作范围也较小;石英砂木粉二元物系,随着石英砂含量的增加,流化状态持续改善,稳态流化操作范围增大,当石英砂含量超过70%时,该二元体系流化状态接近石英砂;石英砂木粉二元混合体系物料循环量及颗粒平均速度随着表观气速的增加而持续增大。

关键词：生物质化学链气化二元混合物流动规律

Advancements in breath-based diagnostics for pancreatic cancer:Current insights and future perspectives

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2300-2303页

作者： Mesut Tez Eda Sahingoz huseyin Fahri Martli Department of Surgery University of Health SciencesAnkara City HospitalAnkara 06800Türkiye Department of General Surgery Saglik Bilimleri UniversityAnkara 06100Turkiye Department of General Surgery Ankara City HospitalAnkara 06100Türkiye

Recent decades have seen a concerning surge in carcinogenic diseases,with cancer cases and deaths on the rise *** diagnostic methods are often invasive and time-consuming,highlighting the need for fast,accurate,and painless ***-invasive exhaled breath analysis emerges as a promising solution,with over 200 volatile organic compounds(VOCs)detected in exhaled air,showing potential as biomarkers for various diseases,including *** the lack of standardized methodologies,advancements in analytical instruments have expanded detection capabilities,reaching 3500 *** have identified specific VOC patterns associated with different cancers,offering hope for non-invasive *** such as gas chromatography-mass spectrometry and electronic noses show promise in distinguishing between healthy individuals and cancer ***,further research and standardization are needed to realize the full clinical potential of breath-based diagnostics,particularly in the early detection of challenging cancers like pancreatic cancer.

关键词： Pancreas Volatile organic compounds Diagnosis Cancer Breath

A review:Health benefits and physicochemical characteristics of blended vegetable oils

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Grain & Oil Science and Technology 2024年第2期7卷 113-123页

作者： Hina Daud Memon Sarfaraz Ahmed Mahesar Sirajuddin huseyin Kara Syed Tufail Hussain Sherazi Mohammad Younis Talpur National Centre of Excellence in Analytical Chemistry University of SindhJamshoro 76080Pakistan International Center for Chemical and Biological Sciences HEJ Research Institute of ChemistryUniversity of KarachiKarachi 75270Pakistan Department of Chemistry Faculty of ScienceSelcuk UniversityKonya 42075Turkey Dr.M.A.Kazi Institute of Chemistry University of SindhJamshoro 76080Pakistan

Oil blending is the method of choice used worldwide to improve oxidative stability and nutritional *** is no such edible oil/fat that meets all the recommendations from the health point of *** fatty acid composition of vegetable oils decides the fate of the *** single oil is unable to provide a balanced amount of fatty acids(FAs)required/recommended on a daily intake *** oils/fats is an appropriate procedure of physically mixing multiple oils in suitable proportions which may provide functional lipids with improved antioxidant potential and desirable physical and chemical *** review piled up the accessible data on the blending of diverse oils/fats in the combination of binary,ternary,quaternary,or other types of oils into a single blended *** can be found very convincing towards appropriate FA profile,enhancement in physicochemical characteristics,and augmented stability for the period of storage or when used as cooking/frying processes which could ultimately serve as an effectual dietary intervention towards the health protectiveness.

关键词： Vegetable oil Oil blending Physicochemical properties Nutritional benefits

All-optical image denoising using a diffractive visual processor

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Light(Science & Applications) 2024年第3期13卷 429-445页

作者： Çağatay Işıl Tianyi Gan Fazil Onuralp Ardic Koray Mentesoglu Jagrit Digani huseyin Karaca Hanlong Chen Jingxi Li Deniz Mengu Mona Jarrahi Kaan Akşit Aydogan Ozcan Electrical and Computer Engineering Department University of CaliforniaLos AngelesCA 90095USA Bioengineering Department University of CaliforniaLos AngelesCA 90095USA California NanoSystems Institute(CNSI) University of CaliforniaLos AngelesCA 90095USA University College London Department of Computer ScienceLondonUnited Kingdom

Image denoising,one of the essential inverse problems,targets to remove noise/artifacts from input *** general,digital image denoising algorithms,executed on computers,present latency due to several iterations implemented in,e.g.,graphics processing units(GPUs).While deep learning-enabled methods can operate non-iteratively,they also introduce latency and impose a significant computational burden,leading to increased power ***,we introduce an analog diffractive image denoiser to all-optically and non-iteratively clean various forms of noise and artifacts from input images–implemented at the speed of light propagation within a thin diffractive visual processor that axially spans<250×λ,whereλis the wavelength of *** all-optical image denoiser comprises passive transmissive layers optimized using deep learning to physically scatter the optical modes that represent various noise features,causing them to miss the output image Field-of-View(FoV)while retaining the object features of *** results show that these diffractive denoisers can efficiently remove salt and pepper noise and image rendering-related spatial artifacts from input phase or intensity images while achieving an output power efficiency of~30–40%.We experimentally demonstrated the effectiveness of this analog denoiser architecture using a 3D-printed diffractive visual processor operating at the terahertz *** to their speed,power-efficiency,and minimal computational overhead,all-optical diffractive denoisers can be transformative for various image display and projection systems,including,e.g.,holographic displays.

关键词： remove rendering holographic

Interobserver and intraobserver reliability of skull base angles measured on magnetic resonance images

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World Journal of Clinical Cases 2024年第34期12卷 6687-6695页

作者： Volkan Kizilgoz Sonay Aydin huseyin Aydemir Papatya Keles Mecit Kantarci Department of Radiology Erzincan Binali Yıldırım UniversityFaculty of MedicineErzincan 24000Türkiye Department of Anatomy University of Health SciencesHamidiye Faculty of Medicineİstanbul 34674Türkiye

BACKGROUND Determination of platybasia and basilar kyphosis are significant parts of routine cranial magnetic resonance(MR)*** situations may explain a patient’s symptoms or may be associated with other *** To indicate the interobserver and intraobserver reliability of the skull base angles(SBA)(Koenigsberg standard)and modified SBA(mSBA)measurement *** In total,391 patients who had undergone cranial MR imaging were re-assessed regarding the SBA *** SBA and mSBA techniques were used on MR *** reviewers independently measured the same angles twice within a 15-day interval,using different *** correlation coefficient(ICC)was calculated to reveal the intraobserver and interobserver *** There was an excellent agreement between reviewers regarding both angle measurements(ICC was 0.998 for SBA and mSBA).Excellent agreement levels were also observed for intraobserver *** was 0.998 for SBA and 0.999 for mSBA for reviewer *** was 0.997 for SBA and 0.999 for mSBA according to the measurement results of reviewer *** SBA and mSBA values were observed for females compared to *** was no correlation between SBA and age for ***,a negative and low-level correlation was observed between mSBA values and age for both *** SBA and mSBA measurements indicated excellent agreement regarding interobserver and intraobserver *** study results showed that SBA angles were reliable measurement techniques to be used on MR images.

关键词： Magnetic resonance imaging Radiography Skull base angles Platybasia Observer reliability

Assessment of the potential interactions between favipiravir and radiocontrast agents

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World Journal of Radiology 2024年第5期16卷 128-135页

作者： Sonay Aydin Ozlem Celik Aydin Mesut Furkan Yazar huseyin Aydemir Mecit Kantarci Sureyya Barun Department of Radiology Erzincan Binali Yıldırım UniversityFaculty of MedicineErzincan 24100Türkiye Department of Pharmacology Gazi UniversityFaculty of MedicineErzincan 24100Türkiye Department of Radiology Bilecik Education and Reseach HospitalBilecik 11230Türkiye Department of Radiology Atatürk UniversityFaculty of MedicineErzurum 25030Türkiye

BACKGROUND In cases of coronavirus disease 2019(COVID-19),favipiravir is commonly included to the therapy *** interactions between favipiravir and other COVID-19 therapy drugs are frequently ***,no research on possible drug interactions between Favipiravir and radiocontrast agents,which have become almost crucial in diagnostic processes while not being part of the treatment,has been *** To determine potential medication interactions between Favipiravir and radiocontrast *** The study comprised patients who were taking Favipiravir for COVID-19 therapy and underwent a contrast-enhanced computed tomography(CT)or magnetic resonance imaging(MRI)test while taking the *** computerized patient files of the cases included in the study,as well as the pharmacovigilance forms in the designated hospital,were evaluated for this *** The study included the evaluation of data from 1046 *** study sample's mean age was 47.23±9.48 *** mean age of cases with drug interactions was statistically significant greater than that of cases with no drug interactions(P=0.003).When evaluated with logistic regression analysis,a 1-year raises in age increases the risk of developing drug interactions by 1.63 times(P=0.023).There was no statistically significant difference in the occurrence of medication interactions between the sexes(P=0.090).Possible medication interactions were discovered in 42 cases(4%).CONCLUSION The findings of this study revealed that the most notable findings as a result of the combined use of contrast agents and favipiravir were increased creatinine and transaminase values,as well as an increase in the frequency of nausea and *** majority of drug interactions discovered were modest enough that they were not reflected in the *** interactions become more common as people get older.

关键词： Favipiravir Iohexol Gadoxetic acid Meglumine gadoterate Drug interactions

Performance investigation of Fe_3O_4 blended poly(vinylidene fluoride) membrane on filtration and benzyl alcohol oxidation:Evaluation of sufficiency for catalytic reactors

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Chinese Journal of Chemical Engineering 2019年第2期27卷 314-321页

作者： huseyin Gumus Bilecik Seyh Edebali University Osmaneli Junior Technical College

Fe_3O_4-PVDF membranes were prepared by blending of magnetic Fe_3O_4 powders with polyvinylidene fluoride to investigate whether those were usable or not in catalytic membrane reactors. Filtration performances and catalytic activity of membranes in microwave conditions were measured in separate processes. Composite Fe_3O_4-PVDF membranes were characterized by TG-DTA, FTIR, XRD, SEM and contact angle *** of α-phases at PVDF was observed with increasing amount of additives from XRD diffraction patterns. Decomposition of polymer fastened due to catalytic effect of Fe_3O_4. Finger-like structures and large number of small pores were observed at the SEM images. Those provided effective transportation of substrate among the active sites of catalyst. At the experiments conducted in batch reactor, 51%, 77%, 66% and 63% benzyl alcohol conversion were recorded for 2%, 4%, 6% and 8% Fe_3O_4-PVDF composite pieces respectively. Catalyst were separated magnetically and reused several times. On the other hand Fe_3O_4 blended PVDF membranes provided improved flux and BSA rejection compared with performance of bare PVDF membrane; 41.6% BSA rejection was obtained with 4% Fe_3O_4-PVDF whereas it was only 6.7% for PVDF. Fe_3O_4-PVDF composites performed high activity for the benzyl alcohol oxidation in batch reactor and also better filtration at filtration cell. These results promise to obtain practical and low cost membrane material for catalytic reactors usable in microwave support to get fast results.

关键词： Benzyl alcohol oxidation Magnetic iron oxide Polymer supported catalyst PVDF filtration membranes