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Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser

matter and Radiation at Extremes 2024年第1期9卷 71-84页

作者： Josef Krása Tomás Burian Vera Hájková Jaromír Chalupský Šimon Jelínek Katerina Frantálová michal Krupka Zuzana Kuglerová Sushil Kumar Singh Vojtech Vozda Ludek Vysín michalŠmíd Pablo Perez-martin marion Kühlman Juan Pintor Jakub Cikhardt matthias Dreimann Dennis Eckermann Felix Rosenthal sam m.vinko Alessandro Forte Thomas Gawne Thomas Campbell Shenyuan Ren YuanFeng Shi Trevor Hutchinson Oliver Humphries Thomas Preston mikako makita motoaki Nakatsutsumi Xiayun Pan Alexander Köhler marion Harmand Sven Toleikis Katerina Falk Libor Juha Department of Radiation and Chemical Physics Institute of PhysicsCzech Academy of SciencesNa Slovance 218221 Prague 8Czech Republic Laser Plasma Department Institute of Plasma PhysicsCzech Academy of SciencesZa Slovankou 318200 Prague 8Czech Republic Department of Surface and Plasma Science Faculty of Mathematics and PhysicsCharles University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Department of Physical Electronics Faculty of Nuclear Science and Engineering PhysicsCzech Technical University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 40001328 DresdenGermany DESY Photon Science Notkestraße 85D-22607 HamburgGermany Institut de minéralogie de Physique des Matériaux et de CosmochimieUMR 7590–UPMC/CNRS/IRD/MNHNSorbonne Université4 place Jussieu75005 ParisFrance Department of Physics Faculty of Electrical EngineeringCzech Technical University in PragueTechnická216627 Prague 6Czech Republic Center for Soft Nanoscience University of MünsterBusso-Peus-Straße 10D-48149 MünsterGermany Department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUnited Kingdom Central Laser Facility STFC Rutherford Appleton LaboratoryDidcot OX110QXUnited Kingdom Lawrence Livermore National Laboratory 7000 East AvenueLivermoreCalifornia 94550USA European XFEL GmbH Holzkoppel 4D-22869 SchenefeldGermany Technische Universität Dresden 01062 DresdenGermany

We report on an experiment performed at the FLASH2 free-electron laser(FEL)aimed at producing warm dense matter via soft x-ray isochoric *** the experiment,we focus on study of the ions emitted during the soft x-ray ablation process using time-of-flight electron multipliers and a shifted maxwell–Boltzmann velocity distribution *** find that most emitted ions are thermal,but that some impurities chemisorbed on the target surface,such as protons,are accelerated by the electrostatic field created in the plasma by escaped *** morphology of the complex crater structure indicates the presence of several ion groups with varying *** find that the ion sound velocity is controlled by the ion temperature and show how the ion yield depends on the FEL radiation attenuation length in different materials.

关键词： electrostatic emitted chemi

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Stereotactic radiosurgery for haemorrhagic cerebral cavernous malformation:a multi-institutional,retrospective study

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Stroke & Vascular Neurology 2024年第3期9卷 221-229,I0130,I0131页

作者： Chloe Dumot Georgios mantziaris sam Dayawansa Zhiyuan Xu Stylianos Pikis Selcuk Peker Yavuz samanci Gokce D Ardor Ahmed m Nabeel Wael A Reda sameh R Tawadros Khaled Abdelkarim Amr m N El-Shehaby Reem m Emad Eldin Ahmed H Elazzazi Nuria martínez moreno Roberto martínezÁlvarez Roman Liscak Jaromir may David mathieu Jean-Nicolas Tourigny manjul Tripathi Akshay Rajput Narendra Kumar Rupinder Kaur Piero Picozzi Andrea Franzini Herwin Speckter Wenceslao Hernandez Anderson Brito Ronald E Warnick Juan Alzate Douglas Kondziolka Greg N Bowden samir Patel Jason Sheehan Department of Neurological Surgery Hospices Civils de LyonLyonFrance Department of Neurological Surgery University of VirginiaCharlottesvilleVirginiaUSA Department of Neurosurgery Koc University School of MedicineIstanbulTurkey Gamma-knife Center Nasser institute HospitalCairoEgypt Neurosurgery Department Benha UniversityBenhaEgypt Departments of Neurosurgery Ain Shams UniversityCairoEgypt Department of Clinical Oncology Ain Shams UniversityCairoEgypt Department of Radiation Oncology National Cancer InstituteCairo UniversityGizaEgypt Faculty of medicine Extended Modular ProgramAin Shams UniversityCairoEgypt Department of Radiosurgery Rúber Internacional HospitalMadridSpain Department of Stereotactic and Radiation Neurosurgery Na Homolce HospitalPragueCzech Republic Neurosurgery Centre de recherche du CHUSUniversitéde SherbrookeSherbrookeQuebecCanada Neurosurgery PGIMERChandigarhChandigarhIndia Radiation Therapy PGIMERChandigarhChandigarhIndia Neurosurgery IRCCS Istituto Clinico HumanitasRozzanoMilanItaly Dominican Gamma Knife Center and Radiology Department CEDIMATSanto DomingoDominican Republic Gamma Knife Center Mayfield ClinicThe Jewish Hospital-Mercy HealthCincinnatiOhioUSA Neurosurgery NYU Langone HealthNew YorkNew YorkUSA Neurosurgery University of AlbertaEdmontonAlbertaCanada Division of Radiation Oncology Department of OncologyUniversity of AlbertaEdmontonAlbertaCanada

Background Cerebral cavernous malformations(CCms)frequently manifest with *** radiosurgery(SRS)has been employed for CCm not suitable for *** effect on reducing haemorrhage risk is still *** aim of this study was to expand on the safety and efficacy of SRS for haemorrhagic *** This retrospective multicentric study included CCm with at least one haemorrhage treated with single-session *** annual haemorrhagic rate(AHR)was calculated before and after *** event analysis and Cox regression were used to evaluate factors associated with *** radiation effects(AREs)and occurrence of new neurological deficits were *** The study included 381 patients (median age:37.5 years(Q1–Q3:25.8–51.9))with 414 *** AHR from diagnosis to SRS excluding the first haemorrhage was 11.08 per 100 CCm-years and was reduced to 2.7 per 100 CCm-years after *** recurrent event analysis,SRS,HR 0.27(95%CI 0.17 to 0.44),pmorrhage,and the presence of developmental venous anomaly(DVA)with an increased risk,HR 1.60(95%CI 1.07 to 2.40),p=*** cumulative risk of first haemorrhage after SRS was 9.4%(95%CI 6%to 12.6%)at 5 years and 15.6%(95%CI%9 to 21.8%)at 10 *** doses>13 Gy,HR 2.27(95%CI 1.20 to 4.32),p=0.012 and the presence of DVA,HR 2.08(95%CI 1.00 to 4.31),p=0.049 were factors associated with higher probability of post-SRS ***-SRS haemorrhage was symptomatic in 22 out of 381(5.8%)patients,presenting with transient(15/381)or permanent(7/381)neurological *** occurred in 11.1%(46/414)CCm and was responsible for transient neurological deficit in 3.9%(15/381)of the patients and permanent deficit in 1.1%(4/381)of the *** doses>13 Gy and CCm volume>0.7 cc were associated with increased risk of ARE.

关键词： doses haemorrhagic diagnosis

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Confirmation of a Sub-Saturn-size Transiting Exoplanet Orbiting a G Dwarf:TOI-1194 b and a Very Low mass Companion Star: TOI-1251 B from TESS

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Research in Astronomy and Astrophysics 2024年第3期24卷 129-143页

作者： Jia-Qi Wang Xiao-Jun Jiang Jie Zheng Hanna Kellermann Arno Riffeser Liang Wang Karen A.Collins Allyson Bieryla Lars A.Buchhave Steve B.Howell Elise Furlan Eric Girardin Joao Gregorio Eric Jensen Felipe murgas mesut Yilmaz sam Quinn Xing Gao Ruo-Yu Zhou Frank Grupp Hui-Juan Wang CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy Of SciencesBeijing 10010China University of Chinese Academy of Sciences Beijing 100049China University Observatory munich Scheinertrsse 1.D-81679 MunichGemany max Planck Institute for Extraterrestrial Physics Giessenbachstr.1D-85748 GarchingGermany National Astronomical Observatories/Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing210042China CAS Key Laboratory of Astronomical Optics&Technology Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China Center for Astrophysics Harvard&Smithsonian60 Garden Street.CambridgeMA 02138USA National Space Institute Technical University of DenmarkElektrovejDK-2800 KgsLyngbyDenmark NASA Ames Research Center Moffett FieldCA 94035USA NASA Exoplanet Science Institute Caltech/IPACMail Code 100-221200 E.California Blvd.PasadenaCA91125USA Grand Pra Observatory Switzerland Department of Physics Washington UniversitySt.LouisMO 63130.USA Department of Physics and Astronomy Swarthmore CollegeSwarthmorePA 19081USA Instituto de Astrofísica de Canarias(IAC) E-38205 La Laguna.TenerifeSpain Departamento de Astrofísica Universidad de La LagunaSpain Dept.of Astronomy and Space Sciences Ankara UniversityTandogan 06100AnkaraTurkey Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Urumqi No.1 Senior High School Urumqi 830002China Lijiang Gemini Observatory Lijiang 674199China

We report the confirmation of a sub-Saturn-size exoplanet,TOI-1194 b,with a mass of about 0.456+0.055-0.051m_(J),and a very low mass companion star with a mass of about 96.5±1.5 mJ,TOI-1251 *** candidates provided by the Transiting Exoplanet Survey Satellite(TESS)are suitable for further follow-up observations by ground-based telescopes with small and medium *** analysis is performed based on data from several telescopes worldwide,including telescopes in the Sino-German multiband photometric campaign,which aimed at confirming TESS Objects of Interest(TOIs)using ground-based small-aperture and medium-aperture telescopes,especially for long-period ***-1194 b is confirmed based on the consistent periodic transit depths from the multiband photometric *** measure an orbital period of 2.310644±0.000001 days,the radius is 0.767+0.045-0.041RJ and the amplitude of the RV curve is 69.4_(-7.3)^(+7.9)m s^(-1).TOI-1251 B is confirmed based on the multiband photometric and high-resolution spectroscopic data,whose orbital period is 5.963054+0.000002-0.000001days,radius is 0.947+0.035-0.033 R_(J) and amplitude of the RV curve is 9849_(-40)^(+42)ms^(-1).

关键词： planets and satellites fundamental parameters-planets and satellites gaseous planets-stars fundamental parameters-stars low-mass-methods data analysis-techniques photometric-techniques spectroscopic

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UNIQUE ORAL DRUG DELIVERY SYSTEm

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Chinese Journal of Polymer Science 1995年第4期13卷 315-321页

作者： Raphael m.Ottenbrite sam milstein Chemistry Department Virginia Commonwealth UniversityRichmond VA 23284-2006 USAEmisphere Technologies Inc. 15 Skyline Drive Hawthorne NY 10595 USA

An oral drug delivery system using proteinoid microspheres is discussed with respect to itsunique dependence on pH. It has been found that certain drugs such as insulin and heparin canbe encapsulated in proteinoid spheres at stomach pH's (1--3). These spheres also dissemble atintestinal pH's (6--7) releasing the drug for absorption. Using this technique low molecularweight heparin and human growth hormone have been orally delivered successfully to severalanimal species. Future work has been proposed to study the interaction and binding of thespecific drugs with synthesized oligopeptides.

关键词： Oral drug delivery system Proteinoid microspheres Oligopeptides

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利用择形分子筛异构化亚甲基二苯胺

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Chinese Journal of Catalysis 2024年第7期62卷 124-130页

作者： sam Van minnebruggen Ka Yan Cheung Trees De Baerdemaeker Niels Van Velthoven matthias Degelin Galahad O’Rourke Hiroto Toyoda Andree Iemhoff Imke muller Andrei-Nicolae Parvulescu Torsten mattke Jens Ferbitz 吴勤明肖丰收 Toshiyuki Yokoi Nils Bottke Dirk De Vos 巴斯夫股份有限公司膜分离、吸附、催化和光谱学可持续解决方案中心(cmACS) 比利时巴斯夫股份有限公司研究组德国东京工业大学纳米空间催化研究所横滨日本浙江大学化学系浙江杭州310028

亚甲基二苯胺(mDA)被广泛用作生产聚氨酯和聚异氰脲酸酯的中间体.然而,当前mDA的生产工艺在控制(4,4’/(2,4’+2,2’))异构体比例方面还存在局限.其中,4,4’-mDA被认为是最有价值的异构体.尽管2,4'-mDA在市场上也有一定的需求,但如果能... 详细信息

亚甲基二苯胺(mDA)被广泛用作生产聚氨酯和聚异氰脲酸酯的中间体.然而,当前mDA的生产工艺在控制(4,4’/(2,4’+2,2’))异构体比例方面还存在局限.其中,4,4’-mDA被认为是最有价值的异构体.尽管2,4'-mDA在市场上也有一定的需求,但如果能将其有效地转化为4,4'-mDA,将能显著提升其附加值.本文在使用苯胺的条件下,利用β分子筛等催化剂,通过双分子机制,可以选择性地将2,4'-mDA异构化为4,4'-mDA.尽管实验显示,多种酸性沸石具有较高的异构化活性,但mCm-68(具有mSE拓扑结构)的催化性能尤为出色,它不仅展现出高异构化活性,而且具有很好的选择性.mCm-68主要催化2,4'-mDA异构化为4,4'-mDA,而2,2'-mDA和低聚物的形成则可以忽略不计.本文还深入探讨了该择形作用的原因,并详细研究了酸位置在mSE分子筛孔道限制中的关键作用.

关键词：铝分布多相催化异构化亚甲基二苯胺聚氨酯择形

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Recovery and grade prediction of pilot plant flotation column concentrate by a hybrid neural genetic algorithm

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International Journal of mining Science and Technology 2013年第1期23卷 69-77页

作者： F. Nakhaei m.R. mosavi A. sam Department of mining Engineering Shahid Bahonar Kerman University Kerman Iran Department of Electrical Engineering Iran University of Science and Technology Tehran Iran

Today flotation column has become an acceptable means of froth flotation for a fairly broad range of applications, in particular the cleaning of sulfides. Even after having been used for several years in mineral processing plants, the full potential of the flotation column process is still not fully exploited. There is no prediction of process performance for the complete use of available control capabilities. The on-line estimation of grade usually requires a significant amount of work in maintenance and calibration of on-stream analyzers, in order to maintain good accuracy and high availability. These difficulties and the high cost of investment and maintenance of these devices have encouraged the approach of prediction of metal grade and recovery. In this paper, a new approach has been proposed for metallurgical performance prediction in flotation columns using Artificial Neural Network (ANN). Despite of the wide range of applications and flexibility of NNs, there is still no general framework or procedure through which the appropriate network for a specific task can be designed. Design and structural optimization of NNs is still strongly dependent upon the designer's experience. To mitigate this problem, a new method for the auto-design of NNs was used, based on Genetic Algorithm (GA). The new proposed method was evaluated by a case study in pilot plant flotation column at Sarcheshmeh copper plant. The chemical reagents dosage, froth height, air, wash water flow rates, gas holdup, Cu grade in the rougher feed, flotation column feed, column tail and final concentrate streams were used to the simulation by GANN. In this work, multi-layer NNs with Back Propagation (BP) algorithm with 8-17-10-2 and 8- 13-6-2 arrangements have been applied to predict the Cu and mo grades and recoveries, respectively. The correlation coefficient (R) values for the testing sets for Cu and mo grades were 0.93, 0.94 and for their recoveries were 0.93, 0.92, respectively. The results disc

关键词： Artificial neural network Genetic algorithm Flotation column Grade Recovery Prediction

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Coastal transgression and regression from 1980 to 2020 and shoreline forecasting for 2030 and 2040,using DSAS along the southern coastal tip of Peninsular India

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Geodesy and Geodynamics 2022年第6期13卷 585-594页

作者： S.Chrisben sam B.Gurugnanam Centre for Applied Geology The Gandhigram Rural Institute Deemed to be UniversityDindigulTamil NaduIndia

This study explains the multi-decadal shoreline changes along the coast of Kanyakumari from 1980 *** shorelines are extracted from the Landsat images to estimate the shoreline dynamics and future predictions using Digital Shoreline Analysis System(DSAS).By the estimation of End Point Rate(EPR)and Linear Regression Rate(LRR),it is quantified that the maximum erosion is 5.01 m/yr(EPR)and 6.13 m/yr(LRR)consistently with the maximum accretion of 3.77 m/yr(EPR)and 3.11 m/yr(LRR)along the entire coastal stretch of 77 *** future shoreline predicted using the Kalman filter forecasted that Inayam,Periyakattuthurai and Kodimunai are highly prone to erosion with a shift of 170 m,157 m and 145 m by 2030 and 194 m,182 m and 165 m by 2040 towards the ***,the western coast is highly prone to erosion and it is predicted that certain villages are prone to loss of economy and *** outcome of this study may guide the coastal researchers to understand the evolution and decisionmakers to evolve with alternative sustainable management plans in the future.

关键词： Shoreline change rates Future prediction DSAS Kalman filter Erosion and accretion

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Characterization of energy and performance of swine fed a novel corn-soybean extruded product

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Journal of Animal Science and Biotechnology 2015年第3期6卷 322-329页

作者： Katherine m Koch Robert C Thaler sam K Baidoo Crystal L Levesque Rebecca C Bott South Dakota State University University of minnesota Southern Research and Outreach Center

Background： A novel extruded product was characterized with a metabolism and lactation trial to establish the product＇s energy content, and its effects on lactating sow performance. The product was composed of a 60：40 corn-soybean blend, which was then extruded. This product containing the co-extruded 60：40 corn-soybean blend was commercially developed and is used extensively in swine diets in southwest minnesota. GE of dietary treatments were determined by isoperibol bomb calorimetry. Twelve barrows （59.9 ± 1.4 kg）, were used to determine the digestible and metabolizable energy of the extruded product. DE of treatments was determined by subtracting fecal energy from GE provided to barrows by each respective treatment. mE was determined by subtracting urinary energy from calculated digestible energy. Sixty-three sows were used for the lactation trial. Three dietary treatments were utilized： CONTROL （an industry standard diet）; PRODUCT （contained the product, vitamins and minerals）; OIL （matched the lysine：mE ratio of PRODUCT by addition of soy oil）. Sow weight, backfat thickness at the right and left last ribs, body condition score, number of piglets, and litter weights were recorded on the date of farrowing （d 0）, （d 9）, and at weaning. Blood and milk samples were obtained at weaning, and blood was analyzed for plasma urea nitrogen （PUN）, milk was analyzed for total protein and fat content. Results： On a dry-matter basis, the test diet provided 3,908 kcal/kg DE and 3,833 kcal/kg mE, which was significantly greater than the basal diet, which provided 3,633 kcal/kg DE and 3,567 kcal/kg mE （P 〈 0.0001）. These data were used to establish the DE and mE of the product, which were 3,882 kcal/kg and 3,798 kcal/kg, respectively, on an as-fed basis. No effect of diet was observed for changes in sow backfat （RBF P = 0.24; LBF P = 0.07） or body condition score （P = 0.12） during lactation. milk total protein （P = 0.69）, fat （P = 0.66）, PUN, average piglet gain （P = 0.55） and pi

关键词： Corn Extruded Lactation mE Soybean Swine

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Epidemiological trends and geographic variation in hospital admissions for diverticulitis in the United States

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World Journal of Gastroenterology 2011年第12期17卷 1600-1605页

作者： Geoffrey C Nguyen Justina sam Nitasha Anand mount Sinai Hospital Division of Gastroenterology University of Toronto Faculty of MedicineTorontoOntario M5G 1X5Canada Division of Gastroenterology and Hepatology Johns Hopkins University School of MedicineBaltimoreMD 21205United States

AIm:To characterize the increasing incidence and geographic variation of acute ***:Using the nationwide inpatient sample (NIS) we identified a cohort who had been admitted with diverticulitis between 1998 and *** calculated age-,sex-,and region-specific rates of hospitalizations for diverticulitis over ***:The age-adjusted hospitalization rate for diverticulitis increased from 61.8 per 100000 to 75.5 per 100 000 between 1998 and 2005,and increased similarly in both ***-associated admissions were male-predominant in those younger than age 45 years but were female-predominant *** rates increased the most among thosemaining unchanged for those≥65 *** 2005,the majority of hospitalized patients werempared to the Northeast(77.7/100000),South (73.9/100000),and midwest(71.0/100000).CONCLUSION:Diverticulitis-associated hospitalizations have steeply risen,especially in young *** epidemiological trends vary by geographic region and warrant further investigation into potential dietary and environmental etiologies.

关键词： Diverticulitis Geographic variation Hospitalization Young adults

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Evaluation of mayer curve validity on feed blending at the Zarand coal washery plant

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International Journal of mining Science and Technology 2012年第1期22卷 19-22页

作者： Habetinejad Hamidreza Jorjani Esmaeil sam Abbas Department of mining Engineering Science and Research BranchIslamic Azad University Faculty of mineral Processing Engineering Shahid Bahonar University

The coal processing methods used at the Zarand coal washery plant are the heavy medium bath,jigs,and *** coal-containing materials that are fed to the plant are acquired from different mines,and they have different washability *** this paper,the validity of mayer curve (m-curve),the conventional method for determining coal washability,was evaluated on blending of raw coals that are fed to the *** curves were prepared for the hand-blended samples and compared with the washability predicted by the mayer *** samples from different seams and mines were blended by hand in 50:50 ratios,and sink and float tests were performed;the resulting washability curves were in good agreement with the washability curves predicted using the mayer method for the same blending *** work resulted in the preparation of the optimum plant feed that can be achieved from the blending of different coal samples to produce the best plant yield at a given ash content.

关键词： Coal Dense medium separation Gravity concentration mayer curve

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