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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第10期14卷 924-933页

作者： Haimanot HABTE LEMJI hartmut eckst dt Faculty of Agricultural and Environmental Sciences Institute of Hydromechanics and Water Management University of Rostock

Evaluating the performance of a biotrickling filter for the treatment of wastewaters produced by a company manufacturing beer was the aim of this study.A pilot scale trickling filter filled with gravel was used as the experimental *** scale plant experiments were made to evaluate the performance of the trickling filter aerobic and anaerobic biofilm systems for removal of chemical oxygen demand(COD) and nutrients from synthetic brewery *** evaluation data of the trickling filter were generated under different experimental *** trickling filter had an average efficiency of(86.81±6.95)% as the hydraulic loading rate increased from 4.0 to 6.4 m3/(m2·d).Various COD concentrations were used to adjust organic loading rates from 1.5 to 4.5 kg COD/(m3·d).An average COD removal efficiency of(85.10±6.40)% was achieved in all wastewater concentrations at a hydraulic loading of 6.4 m3/(m2·d).The results lead to a design organic load of 1.5 kg COD/(m3·d) to reach an effluent COD in the range of 50–120 mg/*** can be concluded from the results of this study,organic substances in brewery wastewater can be handled in a cost-effective and environmentally friendly manner using the gravel-filled trickling filter.

关键词： Biodegradation Pilot scale trickling filter Aerobic treatment Brewery wastewater Chemical oxygen demand(COD) Trickling filter performance

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万宁日月湾Grom冲浪集合店

现代装饰 2024年第3期 162-167页

作者： NormalBuild(设计) dt(摄影) 不详

万宁日月湾是国内冲浪资源最优质的海湾,世界冲浪圣地,这里聚集了全国各地的冲浪爱好者。疫情期间,日月湾更是成为了国内网红景点,各种不同年龄,职业的人汇聚于此。GROM冲浪集合店,包含了冲浪、滑板、服装、餐饮酒吧、LIVE音乐等功能。G... 详细信息

万宁日月湾是国内冲浪资源最优质的海湾,世界冲浪圣地,这里聚集了全国各地的冲浪爱好者。疫情期间,日月湾更是成为了国内网红景点,各种不同年龄,职业的人汇聚于此。GROM冲浪集合店,包含了冲浪、滑板、服装、餐饮酒吧、LIVE音乐等功能。GROM首店陪伴日月湾度过了整个疫情时期,并成为日月湾冲浪文化根基的一部分,疫情结束后由于租期到期,需要重新选址开设新店,新店地址是离老店不远处的一排自建房,在接到设计委托后,设计师思考,浪人们需要什么样的空间。

关键词：冲浪文化根基自建房万宁集合疫情

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今年五一,年轻人挤爆小县城

党员生活（湖北） 2024年第14期 20-21页

作者：准备去旅游的dt 郑琳不详

今年的五一长假,国内出游2.95亿人次,同比增长7.6%,按可比口径较2019年同期增长28.2%;国内游客出游总花费1668.9亿元,同比增长12.7%,按可比口径较2019年同期增长13.5%.

关键词：按可比口径国内游客出游年轻人同期增长同比增长

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2024最拥挤赛道：离职博主

记者观察 2024年第19期 68-70页

作者：微信公众号"dt商业观察"

不知道从什么时候开始，社交网络上流行起“离职三部曲”：一预告，“点赞达到一定的数量就离职”；二官宣，配合着极强的仪式感，换头像、拉横幅、拍离职Vlog；三计划，一步步打卡离职的必做清单。以上这些都绕不开寻找自由和自我提升。

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Influence of Hot Isostatic Pressing on Microstructuresand Properties of NiAl/Cr(Mo)-TiC in-situMultiphase Composites

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Journal of Materials Science & Technology 1998年第4期14卷 331-334页

作者： Jiang, dt Guo, JT Chinese Acad Sci Inst Met Res Shenyang 110015 Peoples R China

A novel in-situ multiphase NiAl-based composite was investigated on its microstructures and properties influenced by HIP treatment. In the as- processed composites, a fine array of NiAl precipitates was found to be distributed in Cr(Mo) phase. TiC particles tended to segregate at grain or phase boundaries. In addition, a number of dislocations were observed to exist in NiAl grains meanwhile fewer in Cr(Mo) grains. Little change in the morphology was found except that nearly fully densification was achieved. Some changes in microstructures were notable including coarsening of NiAl precipitates in Cr(Mo) phase and increase in dislocation density in NiAl phase. After HIP, the strength of the composites increased significantly compared with the as-processed composites. The reason for the enhanced strength of the composites is also discussed.

关键词： Metallic matrix composites

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Advances in alimentary tract imaging

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World Journal of Gastroenterology 2006年第20期12卷 3139-3145页

作者： Dean dt Maglinte Kumaresan Sandrasegaran Mark Tann Department of Radiology Indiana University School of Medicine IndianapolisUnited States

in imaging techniques are changing the way radiologists undertake imaging of the gastrointestinal tract and their ability to answer questions posed by surgeons. In this paper we discuss the technological improvements of imaging studies that have occurred in the last few years and how these help to better diagnosing alimentary tract disease.

关键词： Imaging Alimentary tract

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在日本听广播学日语

美国国家材料科学研究所:N型导电性沟道金刚石场效应晶体管

作者： dt企划

来源：南通市图书馆图书评论

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超硬材料工程 2024年第3期36卷 8-8页

作者： dt半导体

近期,美国国家材料科学研究所(NIMS)团队研发了世界上第一个基于金刚石n型沟道驱动的金属氧化膜半导体场效应晶体管(MOSFET)。该成果对于以普通电子器件IC为代表的单片集成化(在一个半导体基板内集成多个器件),实现其耐环境型互补式金... 详细信息

近期,美国国家材料科学研究所(NIMS)团队研发了世界上第一个基于金刚石n型沟道驱动的金属氧化膜半导体场效应晶体管(MOSFET)。该成果对于以普通电子器件IC为代表的单片集成化(在一个半导体基板内集成多个器件),实现其耐环境型互补式金属氧化膜半导体(CMOS)集成电路。该研究进展以“High-Temperature and High-Electron Mobility Metal-Oxide-Semiconductor Field-Effect Transistors Based on N-Type Diamond”为题发表在Advanced Science上。

关键词：场效应晶体管材料科学金属氧化膜集成电路 Semiconductor 沟道

Elastic and Seismic Properties of Dabie-Sulu Ultrahigh Pressure Metamorphic Rocks

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Acta Geologica Sinica(English Edition) 2012年第1期86卷 20-37页

作者： WANG Qian JI Shaocheng SUN Shengsi Matthew H.SALISBURY hartmut KERN State Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Departement des Genies Civil Geologique et des MinesEcole Polytechnique de Montreal Montreal H3C 3A7Canada State Key Laboratory of Continental Tectonics and Dynamics Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China Geological Survey of Canada-Atlantic Bedford Institute of OceanographyDartmouth B2Y 4A2Canada Institutfur Geowissenschaften Universitat Kiel24098 KielGermany

Lame modulus （λ） and shear modulus （μ） are among the most important, intrinsic, elastic constants of rocks. Using 7. and μ could be much more advantageous than using P- and S-wave velocities （Vp and Vs）. Here we quantified these equivalent isotropic elastic moduli for 115 representative rocks from the ultrahigh pressure （UHP） metamorphic terrane of the Dabie-Sulu orogenic belt （China） and their variations with pressure （P）, temperature （T）, density （p）, Vp, Vs and mineralogical composition. Both moduli increase nonlinearly and linearly with increasing pressure at low （〈200-300 MPa） and high （〉200-300 MPa） pressures, respectively. In the regime of high pressures, 7. and IX decrease quasi-linearly with increasing temperature with temperature derivatives dλ/dt and dμ/dt generally in the range of -10×10-3 to -1×10-3 GPa/℃. Dehydration of water-bearing minerals such as serpentine in peridotites and chlorite in retrograde eciogites results in an abrupt drop in 7. while μ remains almost unchanged. In Z-p, μ-p and 7.-IX plots, the main categories of UHP rocks can be characterized. Serpentinization leads to significant decreases in μ and 7. as serpentine has extremely low values of Z, μ and p. Eclogites, common mafic rocks （mafic gneiss, metagabbro and amphibolite）, and felsic rocks （orthogneiss and paragneiss） have high, moderate and low μ and λ values, respectively. For pyroxenes and olivines, λ increases but μ decreases with increasing Fe/Mg ratios. For plagioclase feldspars, both Z and μ exhibit a significant positive correlation with anorthite content. SiO2-rich felsic rocks and quartzites are deviated remarkably from the general trend lines of the acid-intermediate-mafic rocks in Vs-p, μ-p, λ-Vp,λ-Vs and μ-λ diagrams because quartz has extremely low λ （-8.1 GPa） and p （2.65 g/cm3） but moderate μ （44.4 GPa） values. Increasing the contents of garnet, rutile, ilmenite and magnetite results in a significant increase in the λ and μ values of the UHP metamorphic rocks. Howev

关键词： seismic properties elastic constants ultrahigh pressure metamorphic rocks Dabie-Sulu,deep continental roots

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Amorphous Polylactide Bead Foam–Effect of Talc and Chain Extension on Foaming Behavior and Compression Properties

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Journal of Renewable Materials 2021年第11期9卷 1859-1868页

作者： Christian Brütting Julia Dreier Christian Bonten Volker Altstädt Holger Ruckdäschel Department of Polymer Engineering University BayreuthBayreuth95447Germany Institut für Kunststofftechnik University of StuttgartStuttgart70569Germany

Polylactide(PLA)bead foams show a high potential regarding their applicability in packaging or consumer *** the comparable properties of PLA to Polystyrene(PS)and the good CO_(2) footprint it represents a potential alternative to petroleum-based polymer ***,foaming of PLA is challenging,due to its low melt strength,therefore chemical modifiers are often *** the bead foam technology regarding PLA,the available literature is limited so *** this study,the bead foaming behavior of neat and modified amorphous PLA was *** material was modified by talc and an epoxy-based chain *** compounds have been investigated regarding their sorption behavior in CO_(2) atmosphere and their foaming *** was conducted by using the batch foaming method based on a rapid temperature increase after saturation with CO_(2).In order to achieve welded bead foams,a one-step processing for foaming and welding has been ***,the compression properties of the PLA bead foams have been *** below 50 kg/m^(3) for single bead foams and 80 kg/m^(3) for molded foams were achieved,respectively.

关键词： Polylactide biofoam bead foam CO_(2) low density