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DEGRADATION OF ORGANIC POLLUTANTS IN FLOCCULATED LIQUID DIGESTATE USING PHOTOCATALYTIC TITANATE NANOFIBERS: MECHANISM AND RESPONSE SURFACE OPTIMIZATION

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Frontiers of Agricultural science and engineering 2023年第3期10卷 492-502页

作者： Yiting XIAO Yang TIAN Yuanhang ZHAN Jun ZHU Department of Biological and Agricultural Engineering University of ArkansasFayettevilleAR 72701USA Material Science and Engineering Programs University of ArkansasFayettevilleAR 72701USA

Titanate nanofibers(TNFs)were synthesized using a hydrothermal method and were employed for the first time in this study to photocatalytically degrade organic pollutants found in flocculated liquid digestate of poultry *** photocatalytic performance of TNFs,with a bandgap of 3.16 eV,was tested based on degradation of organic pollutants and removal of *** combinations of pollutant concentration and pH were examined(0.2 to 1.3 g·L^(−1) at pH 4 to 10).Central composite design(CCD)and response surface methodology(RSM)were applied in order to optimize the removal rates of volatile fatty acids(VFA)and chemical oxygen demand(COD),and the decolorization *** were no significant differences between the regression models generated by the CCD/RSM and the experimental *** was found that the optimal values for pH,dosage,VFA removal rate,COD removal rate and decolorization rate were 6.752,0.767 g·L^(−1),72.9%,59.1%and 66.8%,*** findings indicates that photocatalytic TNFs have potential for the posttreatment of anaerobic digestion effluent,as well as other types of wastewater.

关键词： titanate nanofibers photocatalysis poultry litter liquid digestate

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The impacts of altitude and seed pretreatments on seedling emergence of Syrian juniper (Juniperus drupacea (Labill.) Ant. et Kotschy)

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Ecological Processes 2021年第1期10卷 112-117页

作者： Cengiz Yucedag Mehmet Cetin Halil Baris Ozel Adel Easa Saad Abo Aisha Osama B.Muragaa Alrabiti Akram Mohamed Omar AL.JAMA Faculty of Engineering-Architecture Department of Landscape ArchitectureBurdur Mehmet Akif Ersoy UniversityBurdurTurkey. Faculty of Engineering and Architecture Department of Landscape ArchitectureKastamonu UniversityKuzeykent Campus37150 KastamonuTurkey Faculty of Forestry Department of Forest EngineeringBartin UniversityBartinTurkey Institute of Science and Technology Graduate Programs of Material Science and EngineeringKastamonu UniversityKastamonuTurkey.

Background:Syrian juniper is an economically important species and in danger of *** these reasons,the best seedling production methods of the species should be determined and its plantations should be *** aim of the study is to examine the impacts of altitude and different pretreatment combinations of cold and warm stratifications,citric acid,shaking seeds in bottles with crushed glass,and different stimulating agents including Baikal EM1,Biohumus,Polystimulin A6 and K hormones(PS-A6 and PS-K)on seed germination of Syrian *** conduct the study,the cones of the Syrian junipers were collected from three different altitudes(1000,1200,and 1400 m a.s.l.)within the boundaries of Forest Management Directorate of Bozyazı,Mersin in *** seeds were subjected to three replicates per one treatment(altitude in interaction with pretreatment).There were 100 seeds per ***:Two-way ANOVA revealed significant effects of altitude,pretreatment,and their interaction on seedling emergence of Syrian *** from higher altitudes had higher germination rates in all *** highest percent emergence(85%)was recorded in the combination consisting of shaking with crushed glass,both cold and warm stratification,and successive application of stimulators PS-A6 and *** the treatments with most germinating seeds encompassed shaking in crushed glass or soaking in citric acid,both warm and cold stratifications,and application of stimulating ***:The use of seeds from higher altitudes should be considered for seedling production of Syrian juniper due to their higher germination *** altitudinal differences,specific pretreatments can rise germination potential more than twofold.

关键词： Auxin Citric acid Cytokine Germination Stratification

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A self-motivated carrier free nanoplatform for synergistic photodynamic and ferroptosis-based therapy for targeted antitumor treatment

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Nano Research 2025年第5期18卷 463-474页

作者： Chutong Tian Wenjing Ma Jianbin Shi Jia Deng Zeping Gao Haowen Tian Ayumi Kikkawa Kaho Tanaka Ronggang Xi Cong Luo Xiaobo Wang Ken-ichiro Kamei Department of Pharmaceutics Wuya College of InnovationShenyang Pharmaceutical UniversityShenyang 110016China Pharmacy Department the 967th Hospital of PLA Joint Logistics Support ForceDalian 116021China Joint International Research Laboratory of Intelligent Drug Delivery Systems Ministry of EducationShenyang 110016China Graduate School and Faculty of Pharmaceutical Sciences Kyoto UniversityYoshida-Ushinomiya-choSakyo-kuKyoto 606-8501Japan Institute for Integrated Cell-Material Sciences(WPI-iCeMS) Institute for Advanced StudyKyoto UniversityYoshida-Ushinomiya-choSakyo-kuKyoto 606-8501Japan Programs of Biology and Bioengineering Divisions of Science and EngineeringNew York University Abu DhabiAbu Dhabi 129188United Arab Emirates Department of Biomedical Engineering Tandon School of EngineeringNew York UniversityMetroTechBrooklynNY 11201USA

Photodynamic therapy(PDT)has been extensively investigated as an alternative cancer treatment;however,its efficacy is limited by the low oxygen content and excess glutathione(GSH)in tumor *** the emergence of ferroptosis,which also impacts redox homeostasis,a combined PDT-ferroptosis approach holds promise for amplifying the efficacy of both ***,concerns persist regarding biocompatibility and tumor-specific ***,we report a self-motivated co-nanoassembly for combined PDT and ferroptosis-driven tumor *** first modify linoleic acid with protoporphyrin Ⅸ to form a lipidic derivative(denoted as PLA)and develop a light-boosted carrier-free nanoplatform(PLA@R NPs)by co-assembling the ferroptosis inducer RAS-selective lethal 3(RSL3)and *** light irradiation,reactive oxygen species produced by PDT trigger linoleic acid peroxidation,leading to the destruction of the nanoparticles and the release of *** rapid release of RSL3 enhances PDT sensitivity by depleting GSH and utilizing the Fenton reaction to supplement ***,PDT accelerates lipid peroxidation,further inducing *** self-motivated effect increases oxidative stress in tumor tissues,as confirmed by a tumor-on-a-chip ***,the in vivo therapeutic effect with the PLA@R NPs is significant,demonstrating the promising potential of combining PDT and ferroptosis using a light-boosted and self-motivated nanoplatform.

关键词： ferroptosis photodynamic therapy carrier-free nanoparticle cancer treatment

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Intermediate-Phase engineering via Dimethylammonium Cation Additive for Stable Perovskite Solar Cells

Intermediate-Phase Engineering via Dimethylammonium Cation A...

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IEEE Conference Photovoltaic Specialists (PVSC)

作者： David P. McMeekin Philippe Holzhey Sebastian O. Fürer Steven P. Harvey Laura T. Schelhas James M. Ball Suhas Mahesh Seongrok Seo Nicholas Hawkins Jianfeng Lu Michael B. Johnston Joseph J. Berry Udo Bach Henry J. Snaith Department of Physics Clarendon Laboratory University of Oxford Oxford United Kingdom Department of Chemical Engineering Monash University Melbourne Australia ARC Centre of Excellence for Exciton Science Monash University Melbourne Australia Material Science Center National Renewable Energy Laboratory Golden CO United States Applied Energy Programs SLAC National Accelerator Laboratory Menlo Park CA United States Chemistry and Nanoscience Center National Renewable Energy Laboratory Golden CO United States Department of Zoology University of Oxford Oxford United Kingdom

Achieving the long-term stability of perovskite solar cells is arguably the most critical challenge to enabling their widespread commercialization. Understanding the perovskite crystallization process and its direct impact on device stability is essential to achieve this goal. Surprisingly, we find that intermediate phases that occur during the crystallization process strongly influence the long-term perovskite device stability. The commonly employed dimethyl formamide/dimethyl sulfoxide (DMF/DMSO) solvent system preparation method results in poor crystal quality and microstructure of the polycrystalline perovskite films. In this work, we introduce a high-temperature DMSO-free processing method that utilizes dimethylammonium chloride (DMACl) as an additive to control the perovskite intermediate precursor phases accurately. By precisely controlling the 2H to 3C perovskite phase crystallization sequence, we tune the grain size, texturing, orientation (corner-up vs face-up), and crystallinity of the formamidinium (FA)yCs1-yPb(IxBr1-x)3 perovskite system. Encapsulated devices show significantly improved operational stability, with a champion device showing a T80 of 490 hours under simulated sunlight at 85 °C in air, under open circuit conditions. Our work introduces a new processing method that allows higher overall perovskite device stability by controlling the intermediate phase domains during the perovskite formation. This work highlights the importance of material quality to achieve long-term operational stability of perovskite optoelectronic devices.

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Can we manufacture diagnostic test strips using an Inkjet printer?

Can we manufacture diagnostic test strips using an Inkjet pr...

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IEEE Global Humanitarian Technology Conference (GHTC)

作者： Nicholas Frazzette Jennifer Dobson Arwa Mukhtar Bridget Burt Janak Jethva James Adair Khanjan Mehta Humanitarian Engineering and Social Entrepreneurship (HESE) Program School of Engineering Design Technology and Professional Programs Department of Material Science and Engineering The Pennsylvania State University University Park PA USA

Developing countries face an increasing double disease burden of chronic health conditions like cancer, cardiovascular disease, and diabetes alongside traditional communicable diseases like tuberculosis, HIV/AIDS, and malaria. Rural patients often cannot afford to visit established medical centers because of the cost or time associated with travel. Poor education and social stigma prevent patients from seeking medical attention or getting tested for curable illnesses. Access to affordable and accessible tools for screening and diagnosis of common illnesses can greatly reduce the strain on fledgling health care systems. This article provides a proof-of-concept for manufacturing dipstick test strips that can be used for a variety of screening tests including diabetes and urinary tract infections. By repurposing a traditional, piezo inkjet printer with chemically active solutions that match the fluid properties of traditional printer ink, test strips can be printed in a just-in-time manner in low-resource settings.

关键词： Ink Decision support systems Printing Strips Diseases Conferences

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Application of upgraded x-ray magnetic diffraction experimental system to 3D-nd 4F-electron ferromagnets

Application of upgraded x-ray magnetic diffraction experimen...

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作者： Suzuki, Kosuke Ito, Masahisa Tsuji, Naruki Tadenuma, Tatsuki Oba, Yoshiaki Sato, Ayako Nagayasu, Ryota Adachi, Hiromichi Nakao, Hironori Murakami, Youichi Taguchi, Yasujiro Tokura, Yoshinori Sakurai, Yoshiharu Onuk, Yoshichika Department of Electric Engineering School of Engineering Gunma University Kiryu 1-5-1 Gunma 376-8515 Japan Department of Production Science and Technology School of Engineering Gunma University Ota 29-1 Gunma 373-0057 Japan Sayo-gun 1-1-1 Hyogo 679-5198 Japan Olympus Co. Tokyo 163-0914 Japan Fuji Heavy Industries Ltd. Tokyo 160-8316 Japan Center for Development of Higher Education Programs Shinshu University Matsumoto Nagano 390-8621 Japan Institute of Material Structure Science Tsukuba 1-1 Ibaraki 305-0801 Japan Cross-Correlated Materials Research Group RIKEN Wako 2-1 Saitama 351-0198 Japan Department of Applied Physics School of Engineering University of Tokyo Tokyo 113-8656 Japan Department of Physics Graduate School of Science Osaka University Toyonaka 1-1 Osaka 560-0043 Japan

An experimental system of X-ray magnetic diffraction (XMD) is developed on BL3C at the Photon Factory (PF) of High Energy Research Organization (KEK). We applied this upgraded XMD experimental system to 3d- and 4f-electron ferromagnet, YTiO3 and CeRh3B2, respectively. In YTiO3 we successfully obtained spin magnetic form factor for 31 reciprocal lattice points. The observed spin magnetic form factor suggests anisotropic spin density distribution in real space. In CeRh3B 2 we succeeded in measuring spin and orbital magnetic form factor separately. We found that the dominant part of the magnetic moment is the orbital component in CeRh3B2. © 2011 The Surface science Society of Japan.

关键词： Ferromagnetism

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EO/IR sensors development using zinc oxide and carbon nanostructures

EO/IR sensors development using zinc oxide and carbon nanost...

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Micro- and Nanotechnology Sensors, Systems, and Applications

作者： Sood, Ashok K. Richwine, Robert A. Puri, Yash R. Polla, Dennis L. Dhar, Nibir K. Wang, Zhong L. Xu, J.M. Wijewarnasuriya, Priyalal S. Goldsman, Neil Soprano, Martin B. Lineberry, Bobby Magnolia Optical Technologies Inc. 52-B Cummings Park Woburn MA 01801 United States DARPA/MTO 3701 North Fairfax Drive Arlington VA 22203 United States School of Material Science Georgia Institute of Technology Atlanta GA 30332 United States Division of Engineering Brown University Providence RI 02192 United States Army Research Laboratory 2800 Powder Mill Road Adelphi MD 20783 United States Department of Electrical Engineering University of Maryland College Park MD United States DARPA Programs Office US Army Redstone Arsenal AL 35898 United States

ISBN: (纸本)9780819475848

EO/IR Sensors have been developed for a variety of Military Systems Applications. These include UV, Visible, SWIR, MWIR and LWIR Sensors. The conventional SWIR Sensors using InGaAs Focal Plane Array (FPA) can operate in 0.4 - 1.8 micron region. Similarly, MWIR Sensors use InSb and HgCdTe based FPA's that are sensitive in 3-5 and 8-14 micron region. DOD investments in the last 10 years have provided the necessary building blocks for the IR Sensors that are being deployed in the field. In this paper, we discuss recent developments and work under way to develop Next Generation nanostructure based EO/IR detectors that can potentially cover UV, Visible and IR regions of interest. The critical technologies being developed include ZnO nanostructures with wide band gap for UV detection and Carbon Nanostructures that have shown the feasibility for IR detection. Experimental results on ZnO based nanostructures demonstrate enhanced UV sensitivity and path forward for larger arrays. Similarly, recent works on carbon nanostructures have shown the feasibility of IR detection. Combining the two technologies in a sensor can provide multispectral capability. © 2009 SPIE.

关键词： Nanostructures

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Constituency driven graduate level education in nuclear engineering

Constituency driven graduate level education in nuclear engi...

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2008 Winter Meeting and Nuclear Technology Expo: Nuclear Power-Ready, Steady, Go

作者： Foulke, Larry Helling, David W. Sena, Pete Shuman, Larry Chyu, Minking Nuclear Programs University of Pittsburgh 648 Benedum Hall 3700 O'Hara Street Pittsburgh PA 15261 Westinghouse Electric Co Site V.P. Beaver Valley Nuclear Station Senior Associate Dean for Academic Affairs Swanson School of Engineering University of Pittsburgh Department of Mechanical Engineering and Material Science University of Pittsburgh

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A new nuclear educational program at the University of Pittsburgh

A new nuclear educational program at the University of Pitts...

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CONTE 2007: Conference on Nuclear Training and Education

作者： Foulke, Larry Shuman, Larry Chyu, Minking Nuclear Programs University of Pittsburgh 648 Benedum Hall 3700 O'Hara Street Pittsburgh PA 15261 United States Academic Affairs School of Engineering University of Pittsburgh United States Department of Mechanical Engineering and Material Science University of Pittsburgh United States

No abstract available

ISBN: (纸本)0894486993

No abstract available

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engineering education and the global economy: The search for policy

Engineering education and the global economy: The search for...

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113th Annual ASEE Conference and Exposition, 2006

作者： Devon, Richard Kisenwether, Elizabeth Schuhmann, Richard Pangborn, Robert Barron, Kim Pennsylvania State University United States Department of Engineering Design Engineering Design Program School for Engineering Design Technology United States Engineering Entrepreneurship Program Engineering Leadership Program United States Department of Civil and Environmental Engineering Undergraduate Studies and International Programs College of Engineering Department of Material Science Industrial Engineering at Penn State United States

engineering education in the United States is confronted with some new realities, both real and perceived. engineering is increasingly a globally distributed, cooperative activity and the US outsourcing of research, design, manufacturing, and construction overseas is growing. Further, the production of engineers in the United States is falling to around 5-6% of the global supply with clear signs that engineering education is available at lower costs, often far lower, in other countries. Many have viewed this globalization as a competitive situation for engineering education in the United States that we are losing. We will present the view that in terms of the quality of engineering education (which engineering educators can influence) as opposed to the global economy (about which we can do little), engineering education is still very strong in the US and likely to remain that way. However, we will present some recommendations based on our professional responsibilities in running programs in entrepreneurship, leadership, and design. In particular, we will review survey data collected from Penn State engineering graduates over the last decade which helps define new paths for integrating entrepreneurship, leadership and design into the engineering curriculum. We believe that there are some very real ways in which engineering education can, and should be, responding to the new requirements for success in professional engineering careers that derive from national needs as well as from the globalization of engineering. © American Society for engineering Education, 2006.

关键词： engineering education

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