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Improvement of Renewable Bioenergy Production in Microbial Fuel Cells with Saponin Supplementation

Journal of Sustainable Bioenergy Systems 2021年第2期11卷 82-93页

作者： Skylar Choi Yongjin Park Immanuel H. Anaborne Jin Sik Song Ji woo Han So Hyun Jeon Jaewoo Kim James Kim Jinkwon Lee Paul S. Chung Horace Greeley High School Chappaqua NY USA Deerfield Academy Deerfield MA USA Oakton High School Vienna VA USA School of Arts & Sciences University of Virginia Charlottesville VA USA School of Arts & Sciences Emory University Atlanta GA USA Bachelor of Science Villanova University Villanova PA USA College of Letters & Sciences University of California Los Angeles Los Angeles CA USA School of Arts & Sciences University of Michigan Ann Arbor MI USA Division of Biological Sciences Revelle College University of California San Diego CA USA Fuzbien Technology Institute Rockville MD USA

Microbial fuel cell (MFC) is one of renewable biofuel production technology that directly converts biomass to electricity. Cellulosic biomass is particularly attractive renewable resources for its low cost and abundance and neutral carbon balance. However, methanogenesis remains as a major factor limiting MFC performance. The current study reports that saponin addition at 0.05% w/v dose to anolyte in MFCs inhibited methanogenesis and improves power generation and cellulose fermentation. Mediator-less two chamber H-type MFCs were prepared using rumen fluid as anode inocula at 20% v/v of anolyte to convert finely ground pine tree (Avicel) at 2%, w/v to electricity. Saponin was added to the anode of MFC at 0.005% or 0.05% v/v dosage for treatment. MFC power and current across an external resistor were measured daily for 10d. On d10, collected gases from anode compartment were measured for total gas volume and analyzed for gas composition on gas chromatography. Supplementation of saponin to MFC at 0.005% did not have any effects on electricity generation or biogas production and composition. Saponin at 0.05% dose reduced 10% of methane prod

关键词： Microbial Fuel Cells Saponin Bioenergy

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ACS Nano：科学家利用来自尿液的生物标志物进行早期癌症筛查

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现代生物医学进展 2017年第11期17卷 I0003-I0003页

作者： Hyun-Kyung woo[†]‡ Vijaya Sunkara[†]‡ Juhee Park[⊥] Tae-Hyeong Kim[⊥] Ja-Ryoung Han[†] Chi-Ju Kim[†][⊥] Hyun-Il Choi[§] Yoon-Keun Kim[§][∥] Yoon-Kyoung Cho[*][†][⊥] [†] Department of Biomedical Engineering School of Life Sciences Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea[§] Department of Life Sciences Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea[∥] Institute of MD Healthcare Seoul 03923 Republic of Korea[⊥] Center for Soft and Living Matter Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea

日前。来自韩国蔚山国家科学技术研究所的研究人员通过研究开发出了一种新技术，该技术能够有效在尿液或血液中有效鉴别出促进癌症发生的物质，相关研究刊登于国际杂志ACS Nano上。

关键词： Nano ACS 生物标志物癌症尿液科学家筛查早期

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基于新分期系统的鼻腔、鼻窦内翻性乳头状瘤疗效回顾分析

基于新分期系统的鼻腔、鼻窦内翻性乳头状瘤疗效回顾分析

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中华医学会第十次全国耳鼻咽喉-头颈外科学术会议

作者： C.L.Sham John K.S.woo Charles Andrew van Hasselt Michael C.F.Tong FRCS Ed MMED Otol md CUHK

目的鼻腔和鼻窦内翻性乳头状瘤(SNIP)的治疗是一项有争议的议题。先前关于治疗途径、切除方法的报道及报道结果的时间存在很大差异。对 SNIP 治疗效果的比较存在困难,是因为缺乏恰当的公认的分期系统、及其报道和比较治疗效果的标准化...

目的鼻腔和鼻窦内翻性乳头状瘤(SNIP)的治疗是一项有争议的议题。先前关于治疗途径、切除方法的报道及报道结果的时间存在很大差异。对 SNIP 治疗效果的比较存在困难,是因为缺乏恰当的公认的分期系统、及其报道和比较治疗效果的标准化时间。本文主要目的是要建立一项新的分期系统和提出一个适当的报道和比较治疗效果的时间。方法回顾以往报道所基于的分期和疗效结果,1990年至2007年间共计37例患者随访超过 5年,分析其目的是为了基于术中和病理检查所发现的部位及其 SNIP 范围、复发率和处理原发灶与复发瘤不同的技术难度,设计一套新的分期系统。我们也分析了这些病例第一次复发所诊断的时间与部位。

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An Earth-mass planet in a time of COVID-19:KMT-2020-BLG-0414Lb

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Research in Astronomy and Astrophysics 2021年第9期21卷 243-261页

作者： Weicheng Zang Cheongho Han Iona Kondo Jennifer C.Yee Chung-Uk Lee Andrew Gould Shude Mao Leandro de Almeida Yossi Shvartzvald Xiangyu Zhang Michael D.Albrow Sun-Ju Chung Kyu-Ha Hwang Youn Kil Jung Yoon-Hyun Ryu In-Gu Shin Sang-Mok Cha Dong-Jin Kim Hyoun-woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W.Pogge John Drummond Thiam-Guan Tan JoséDias do Nascimento Júnior Dan Maoz Matthew T.Penny Wei Zhu Ian A.Bond Fumio Abe Richard Barry David P.Bennett Aparna Bhattacharya Martin Donachie Hirosane Fujii Akihiko Fukui Yuki Hirao Yoshitaka Itow Rintaro Kirikawa Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Greg Olmschenk Clément Ranc Nicholas J.Rattenbury Yuki Satoh Hikaru Shoji Stela Ishitani Silva Takahiro Sumi Daisuke Suzuki Yuzuru Tanaka Paul J.Tristram Tsubasa Yamawaki Atsunori Yonehara Andreea Petric Todd Burdullis Pascal Fouqué Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Chungbuk National UniversityCheongju 28644Republic of Korea Department of Earth and Space Science Graduate School of ScienceOsaka UniversityToyonakaOsaka 560-0043Japan Center for Astrophysics j Harvard&Smithsonian 60 Garden St.CambridgeMA 02138USA Korea Astronomy and Space Science Institute Daejon 34055Republic of Korea University of Science and Technology Korea(UST)217 Gajeong-ro Yuseong-guDaejeon 34113Republic of Korea Max-Planck-Institute for Astronomy Königstuhl 1769117 HeidelbergGermany Department of Astronomy Ohio State University140 W.18th Ave.ColumbusOH 43210USA National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Universidade Federal do Rio Grande do Norte(UFRN) Departamento de F´1sica59078-970NatalRNBrazil Department of Particle Physics and Astrophysics Weizmann Institute of ScienceRehovot 76100Israel University of Canterbury Department of Physics and AstronomyPrivate Bag 4800Christchurch 8020New Zealand School of Space Research Kyung Hee UniversityYonginKyeonggi 17104Republic of Korea Possum Observatory PatutahiGisbourneNew Zealand Perth Exoplanet Survey Telescope PerthAustralia School of Physics and Astronomy Tel-Aviv UniversityTel-Aviv 6997801Israel Department of Physics and Astronomy Louisiana State UniversityBaton RougeLA 70803 USA Canadian Institute for Theoretical Astrophysics University of Toronto60 St George StreetTorontoON M5S 3H8Canada Institute of Natural and Mathematical Sciences Massey UniversityAuckland 0745New Zealand Institute for Space-Earth Environmental Research Nagoya UniversityNagoya 464-8601Japan Code 667 NASA Goddard Space Flight CenterGreenbeltMD 20771USA Department of Astronomy University of MarylandCollege ParkMD 20742USA Department of Physics University of AucklandPrivate Bag 92019AucklandNew Zealand Department of Earth and Planetary Science Graduate School of ScienceThe University of Tokyo7-3-1 Hongo

We report the discovery of KMT-2020-BLG-0414 Lb,with a planet-to-host mass ratio q2=0.9-1.2×10-5=3-4 q⊕at 1σ,which is the lowest mass-ratio microlensing planet to *** with two other recent discoveries(4?q/q⊕?6),it fills out the previous empty sector at the bottom of the triangular(log s,log q)diagram,where s is the planet-host separation in units of the angular Einstein radiusθ***,these discoveries call into question the existence,or at least the strength,of the break in the mass-ratio function that was previously suggested to account for the paucity of very low-q *** to the extreme magnification of the event,Amax~1450 for the underlying single-lens event,its light curve revealed a second companion with q3~0.05 and|log s3|~1,i.e.,a factor~10 closer to or farther from the host in *** measurements of the microlens parallaxπE and the angular Einstein radiusθE allow estimates of the host,planet and second companion masses,(M1,M2,M3)~(0.3 M⊙,1.0 M⊕,17 MJ),the planet and second companion projected separations,(a⊥,2,a⊥,3)~(1.5,0.15 or 15)au,and system distance DL~1 *** lens could account for most or all of the blended light(I~19.3)and so can be studied immediately with high-resolution photometric and spectroscopic observations that can further clarify the nature of the *** planet was found as part of a new program of high-cadence follow-up observations of high-magnification *** detection of this planet,despite the considerable difficulties imposed by COVID-19(two KMT sites and OGLE were shut down),illustrates the potential utility of this program.

关键词： gravitational lensing:micro

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