检索结果-南通市图书馆

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Constructing long-cycling crystalline C_(3)N_(4)-based carbonaceous anodes for sodium-ion battery via N configuration control

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2024年第1期6卷 159-171页

作者： Ying Wang Hongguan Li Shuanlong Di Boyin Zhai Ping Niu antonios Kelarakis Shulan Wang Li Li School of Metallurgy Northeastern UniversityShenyangLiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyangLiaoningChina Department of Chemistry College of ScienceNortheastern UniversityShenyangLiaoningChina School of Natural Sciences UCLan Research Centre for Smart MaterialsUniversity of Central LancashirePrestonUK Foshan Graduate School of Innovation Northeastern UniversityFoshanGuangdongChina

Carbon nitrides with two-dimensional layered structures and high theoretical capacities are attractive as anode materials for sodium-ion batteries while their low crystallinity and insufficient structural stability strongly restrict their practical *** carbon nitrides with conductive carbon may relieve these ***,little is known about the influence of nitrogen(N)configurations on the interactions between carbon and C_(3)N_(4),which is fundamentally critical for guiding the precise design of advanced C_(3)N_(4)-related ***,highly crystalline C_(3)N_(4)(poly(triazine imide),PTI)based all-carbon composites were developed by molten salt *** importantly,the vital role of pyrrolic-N for enhancing charge transfer and boosting Na+storage of C_(3)N_(4)-based composites,which was confirmed by both theoretical and experimental evidence,was spot-highlighted for the first *** elaborately controlling the salt composition,the composite with high pyrrolic-N and minimized graphitic-N content was *** from the formation of highly crystalline PTI and electrochemically favorable pyrrolic-N configurations,the composite delivered an unusual reverse growth and record-level cycling stability even after 5000 cycles along with high reversible capacity and outstanding full-cell capacity *** work broadens the energy storage applications of C_(3)N_(4) and provides new prospects for the design of advanced all-carbon electrodes.

关键词： anode highly crystalline C_(3)N_(4) N configuration sodium-ion batteries ultra-long cyclic stability

A simulation study for a cost-effective PET-like detector system intended to track particles in granular assemblies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2024年第1期84卷 117-125页

作者： Josephine Oppotsch antonios Athanassiadis Miriam Fritsch Fritz-Herbert Heinsius Thomas Held Nikoline Hilse Viktor Scherer Matthias Steinke Ulrich Wiedner Ruhr-Universität Bochum Institut für Experimentalphysik I44801 BochumGermany Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik44801 BochumGermany

Since many industrial applications rely on the processing of densely packed and moving granular ma-terial,obtaining bulk internal information on the particle movement inside the reactors is of great *** information can be delivered by Positron Emission Particle Tracking(PEPT).By marking pellets with a positron-emitting radioisotope,the position of these tracer particles can be determined via the time-of-flight differences of the emitted gamma-ray *** current paper proposes a PET-like detector system based on cost-effective organic plastic scintillators instead of the more common but expensive inorganic *** system is currently under construction and was tested for its resolution and efficiency in this simulation *** Monte Carlo simulations and the software toolkit Geant4,three different geometries(an empty glass box,a generic grate system,and a cubic box of 1 m3 completely filled with pellets)were investigated,leading to a spatial resolution in the millimeter range and an efficiency,defined as the ratio of reconstructed decay locations to simulated decays,of 2.7%,1.4%,and 0.3%.

关键词： Positron emission particle tracking Geant4 Monte Carlo method Time-of-flight Plastic scintillators Silicon photomultipliers(SiPMs)

Establishing HI mass vs. stellar mass and halo mass scaling relations using an abundance matching method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2024年第11期67卷 149-163页

作者： Yi Lu Xiaohu Yang Chengze Liu Haojie Xu antonios Katsianis Hong Guo Xiaoju Xu Yizhou Gu Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute and Shanghai Key Laboratory for Particle Physics and CosmologyShanghai Jiao Tong UniversityShanghai 200240China Department of Astronomy School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China School of Physics and Astronomy Sun Yat-sen UniversityZhuhai CampusZhuhai 519082China

We combined data from the Sloan Digital Sky Survey(SDSS) and the Arecibo Legacy Fast ALFA Survey(ALFALFA) to establish the HI mass vs. stellar mass and halo mass scaling relations using an abundance matching method that is free of the Malmquist bias. To enable abundance matching, a cross-match between the SDSS DR7 galaxy group sample and the ALFALFA HI sources provides a catalog of 16520 HI-galaxy pairs within 14270 galaxy groups(halos). By applying the observational completeness reductions for both optical and HI observations, we used the remaining 8180 ALFALFA matched sources to construct the model constraints. Taking into account the dependence of HI mass on both the galaxy and group properties, we establish two sets of scaling relations: one with a combination of stellar mass,(g-r) color and halo mass, and the other with stellar mass,specific star-formation rate(sSFR), and halo mass. We demonstrate that our models can reproduce the HI mass component as both stellar mass and halo mass. Additional tests showed that the conditional HI mass distributions as a function of the cosmic web type and the satellite fractions were well recovered.

关键词： galaxy groups neutral hydrogen halos statistical

Quantitative assessment of the impact of a triage physician on the Accreditation Council for Graduate Medical Education resident milestones in the emergency department

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2024年第3期15卷 220-222页

作者： Julie Cueva Duncan Grossman Vishnu Muppala Arlene Chung Mahlaqa Butt Jefferson Drapkin antonios Likourezos Errel Khordipour Department of Emergency Medicine Maimonides Medical CenterNew York 11219USA

The “door-to-doctor” time for patients to be seen by a physician is an increasingly studied *** may shorten this time by implementing a triage physician (TP).The exact role of a TP may vary across *** put in preliminary orders for lab work,imaging,and treatment,and decide treatment location for further *** the prevalence of TPs grows,its effect on resident education in academic emergency departments (EDs) remains *** implemented a TP in the spring of 2016 and assessed resident physicians before and after implementation.

关键词： physician doctor treatment

Hypoxia-inducible factor 1alpha and vascular endothelial growth factor in Glioblastoma Multiforme:a systematic review going beyond pathologic implications

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Oncology Research 2024年第8期32卷 1239-1256页

作者： DIMITRA P.VAGELI PANAGIOTIS G.DOUKAS KERASIA GOUPOU antonios D.BENOS KYRIAKI ASTARA KONSTANTINA ZACHAROULI SOTIRIS SOTIRIOU MARIA IOANNOU Department of Surgery Yale UniversityNew HavenCT 06510USA Department of Pathology Faculty of MedicineSchool of Health SciencesUniversity of ThessalyLarissa41500Greece Department of Medicine Rutgers/Saint Peter’s University HospitalNew BrunswickNJ 08901USA Department of Neurology Army Share Fund Hospital(NIMTS)Athens11521Greece Laboratory of Embryology Faculty of MedicineSchool of Health SciencesUniversity of ThessalyLarissa41500Greece

Glioblastoma multiforme(GBM)is an aggressive primary brain tumor characterized by extensive heterogeneity and vascular *** conditions in the tissue microenvironment are considered a pivotal player leading tumor ***,hypoxia is known to activate inducible factors,such as hypoxia-inducible factor 1alpha(HIF-1α),which in turn can stimulate tumor neo-angiogenesis through activation of various downward mediators,such as the vascular endothelial growth factor(VEGF).Here,we aimed to explore the role of HIF-1α/VEGF immunophenotypes alone and in combination with other prognostic markers or clinical and image analysis data,as potential biomarkers of GBM prognosis and treatment *** performed a systematic review(Medline/Embase,and Pubmed database search was completed by 16th of April 2024 by two independent teams;PRISMA 2020).We evaluated methods of immunoassays,cell viability,or animal or patient survival methods of the retrieved studies to assess unbiased *** used inclusion criteria,such as the evaluation of GBM prognosis based on HIF-1α/VEGF expression,other biomarkers or clinical and imaging manifestations in GBM related to HIF-1α/VEGF expression,application of immunoassays for protein expression,and evaluation of the effectiveness of GBM therapeutic strategies based on HIF-1α/VEGF *** used exclusion criteria,such as data not reporting both HIF-1αand VEGF or *** included 50 studies investigating in total 1319 GBM human specimens,18 different cell lines or GBM-derived stem cells,and 6 different animal models,to identify the association of HIF-1α/VEGF immunophenotypes,and with other prognostic factors,clinical and macroscopic data in GBM prognosis and therapeutic *** found that increased HIF-1α/VEGF expression in GBM correlates with oncogenic factors,such as miR-210-3p,Oct4,AKT,COX-2,PDGF-C,PLDO3,M2 polarization,or ALK,leading to unfavorable *** HIF-1α/VEGF expression correlates with F

关键词： Glioblastoma multiforme(GBM) Astrocytoma Grade III Astrocytoma Grade IV Hypoxia-inducible factor 1alpha(HIF-1α) Vascular endothelial growth factor(VEGF)

Crystallinity engineering of carbon nitride protective coating for ultra-stable Zn metal anodes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electron 2024年第1期2卷 177-187页

作者： Chen Liu Yuxin Zhu Shuanlong Di Jiarui He Ping Niu antonios Kelarakis Marta Krysmann Shulan Wang Li Li School of Metallurgy Northeastern UniversityShenyangChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyangChina Foshan Graduate School of Innovation Northeastern UniversityFoshanChina Department of Chemistry College of ScienceNortheastern UniversityShenyangChina UCLan Research Centre for Smart Materials School of Natural SciencesUniversity of Central LancashirePrestonUK School of Dentistry University of Central LancashirePrestonUK

Ineffective control of dendrite growth and side reactions on Zn anodes significantly retards commercialization of aqueous Zn-ion *** conventional interfacial modification strategies that are primarily focused on component optimization or microstructural tuning,herein,we propose a crystallinity engineering strategy by developing highly crystalline carbon nitride protective layers for Zn anodes through molten salt ***,the highly ordered structure along with sufficient functional polar groups and pre-intercalated Kþendows the coating with high ionic conductivity,strong hydrophilicity,and accelerated ion diffusion *** calculations also confirm its enhanced Zn adsorption capability compared to commonly reported carbon nitride with amorphous or semi-crystalline structure and bare *** from the aforementioned features,the as-synthesized protective layer enables a calendar lifespan of symmetric cells for 1100 h and outstanding stability of full cells with capacity retention of 91.5%after 1500 *** work proposes a new conceptual strategy for Zn anode protection.

关键词： crystalline carbon nitride crystallinity engineering long cycling life uniform Zn deposition Zn metal anode

Cryoablation of osteoid osteomas:Is it a valid treatment option?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Radiology 2024年第9期16卷 389-397页

作者： antonios Michailidis Athanasios Panos Efthimios Samoladas Georgios Dimou Georgia Mingou Panagiotis Kosmoliaptsis Maria Arvaniti Christos Giankoulof Evangelos Petsatodis Department of Interventional Radiology Georgios Papanikolaou General Hospital of ThessalonikiThessaloniki 57010Greece Department of 1st Orthopaedic Clinic Georgios Papanikolaou General Hospital of ThessalonikiAristotle University of ThessalonikiThessaloniki 57010Greece Dental School EKPAAthens 15773Greece

BACKGROUND Osteoid osteoma is a benign bone tumor with characteristic clinical *** selected method for its treatment is percutaneous radiofrequency ***,percutaneous cryoablation is an alternative method with certain *** To evaluate percutaneous computed tomography(CT)-guided cryoablation for the treatment of osteoid osteoma in young patients and *** A total of 25 patients were treated with percutaneous CT-guided cryoablation for osteoid osteomas between October 2020 and March 2023 at a single *** patients were above 14-years-old(mean age,24-years-old),and all procedures were performed under local *** the 25 patients,8 were female and 17 were *** sites included the femur(n=9),medial malleolus(n=4),sacral ala(n=4),facets(n=4),humerus(n=3),and tibia(n=1).One cryoprobe was used in each procedure and,when possible,the lesion was covered by the ice-ball using an extraosseous position without penetrating the *** necessary thermal protective techniques were used depending on the anatomical structure at *** All patients treated had complete response(100%clinical success rate)starting on the day of the *** success was achieved in all *** analog scale(VAS)scores at 1 year were 0,compared to a mean VAS score of 8.5±1(SD)before the *** recurrences were reported at the 1-year follow-up and no complications were *** 11/25 cases,an extraosseous position of the cryoprobe was used with less procedural time achieving technical and clinical success and no complications with less patient *** patients were discharged from the hospital on the same day as the *** Cryoablation of osteoid osteomas is an efficacious and safe procedure with durable clinical *** greatest advantage is that the procedure can be performed under local anesthesia using an extraosseous position of the cryoprobe when possible.

关键词： Cryoablation Osteoid osteoma Computed tomography guidance Interventional radiology Orthopedics Bone tumors

3D micropattern force regulates stem cell function

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2023年第8期10卷 69-70页

作者： antonios G. Mikos Department of Bioengineering Rice University

Biophysical cues of the cellular microenvironment significantly influence cell behaviors by mechanotransduction [1,2].For example, the mechanical properties of the extracellular matrix modulate human mesenchymal stem ...

关键词：