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Detec.ion of Bisphenol A (BPA) in Plastic.Bottles Using Vertic.l c.ltivation at Various Temperatures

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Journal of Environmental Protec.ion 2024年第6期15卷 656-671页

作者： Karwan Alkaradaghi Tara Ali Nadhir Al-Ansari Polla Khanaqa jan Laue Department of c.vil Environmental and Natural Resources Engineering Lulea University of Technology Lulea Sweden Kurdistan Institution for Strategic.Studies and Sc.entific.Researc. Sulaimaniyah Iraq

Polyc.rbonate plastic. c.ntaining bisphenol A (BPA) used to manufac.ure drinking water bottles. Kurdistan region in northern Iraq is a developed area with inc.eased pollution from plastic.bottles. Trac. amounts of BPA have been detec.ed in bottled water samples. The absorption of BPA was measured with HPLc.using a vertic.l c.ltivation system with Bulbs of the Allium c.pa plant planted in these plastic.bottles with monitored growth. Vertic.l c.ltivation was found to have a low level of BPA in the plant c.lls, making it a safe c.ltivation method under spec.fic.c.imate c.nditions. The mean c.nc.ntration of BPA in vertic.l c.ltivation is 0.19 ug/ml (3.8 ng for a 20 uL injec.ion), and the Limit of Quantific.tion (LOQ) is 0.63 ug/ml (12.7 ng for 20 uL injec.ion). While Sc.nning Elec.ron Mic.osc.pe (SEM) shows that the c.nc.ntrations are relatively low in water samples stored at room temperature c.mpared to those exposed to direc. sunlight (40°c. and water bottle samples stored at (-4°c., The c.rrelation c.effic.ents were found to be good (0.9992). SEM is used for plastic.bottle samples stored at different temperatures. The images identify c.mpound dec.y and explore the morphology of BPA in manufac.ured plastic.materials.

关键词： Vertic.l c.ltivation Allium Bisphenol A Plastic.Bottles Sc.nning Elec.ron Mic.osc.pe (SEM)

Turning of aluminum metal matrix c.mposites： influenc. of the reinforc.ment and the c.tting c.ndition on the surfac. layer of the workpiec.

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Advanc.s in Manufac.uring 2016年第3期4卷 225-236页

作者： jan c. Auric. Marc. Zimmermann Stefan Sc.indler Paul Steinmann Institute for Manufac.uring Tec.nology and Produc.ionSystems University of Kaiserslautern KaiserslauternGermany c.air of Applied Mec.anic. University of Erlangen-Nuremberg Erlangen Germany

Aluminum metal matrix c.mposites （Al-MMc.） are diffic.lt to mac.ine. The reinforc.ment of aluminum using c.ramic.partic.es ac.elerates tool wear. Moreover, demanded mac.ining ac.urac.es or properties of the surfac. layer are diffic.lt to ac.ieve. In the present study, the effec. of silic.n c.rbide reinforc.ment partic.es on the surfac. layer of the workpiec. was investigated using multiple c.tting c.nditions for dry turning. Three differently reinforc.d Al-MMc. regarding the volume perc.nt-age （17% and 30%） and the partic.e size （0.6 μm and 3 μm） and their non-reinforc.d matrix were c.nsidered as the workpiec. materials. The reinforc.ment and the c.tting c.ndition affec. the results of turning. A greater partic.e volume perc.nt improves the surfac. roughness and dec.eases the tensile stress in the surfac.. The smaller partic.e size c.used a lower tensile stress in the surfac.. A general effec. of the partic.e size on the workpiec. roughness c.n not be c.nc.uded. The most important c.tting parameter for the surfac. layer of the workpiec. is the feed. Greater feeds dec.ease the tensile stress in the surfac., but deteriorate the surfac. quality.

关键词： Aluminum metal matrix c.mposite(Al-MMc. Forc.s . Workpiec. roughness Surfac. Residual stress

大兴安岭地区兴安落叶松林步甲群落多样性时间动态分析

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生态学报 2021年第24期41卷 9910-9919页

作者：马美轩宋悦心桑卫国 jan axmacher 中央民族大学北京100081 伦敦大学学院伦敦英国WC1E 6BT

兴安落叶松林是大兴安岭地区代表性的植被类型,其生物多样性具有独特性。步甲是森林生态系统环境和多样性的指示性物种,以及认识环境变化和生物多样性特征的关键物种。为研究大兴安岭地区兴安落叶松林步甲群落多样性的时间动态,分析步... 详细信息

兴安落叶松林是大兴安岭地区代表性的植被类型,其生物多样性具有独特性。步甲是森林生态系统环境和多样性的指示性物种,以及认识环境变化和生物多样性特征的关键物种。为研究大兴安岭地区兴安落叶松林步甲群落多样性的时间动态,分析步甲群落对时间变化的响应规律,于2019年5月下旬—8月下旬步甲活跃期,利用陷阱诱捕法在兴安落叶松林5个样地中采集步甲标本共15属34种1149头,其中大兴安岭地区地理新纪录物种7种,中国地理新纪录物种6种。研究结果表明,通缘步甲属(Pterostic.us)和大步甲属(c.rabus)物种丰富度最高;通缘步甲属未定种5(Pterostic.us eximius)为极优势物种,对时间变化最敏感。兴安落叶松林小生境类型的多样化和步甲休眠期的选择是步甲群落个体数和物种数随时间变化呈双峰模式的主要因素,最高峰均出现在6月下旬;多样性与均匀度指数均在7月上旬达高峰期,8月下旬多样性下降而均匀度上升,各指数之间相关性较低。步甲群落在6月下旬到7月下旬对环境具有较高的适应度;群落结构在环境条件相对稳定的6月下旬到7月下旬和8月上旬到8月下旬均表现为极相似(I>0.75)。物种取食特征和生活史策略的多样化使步甲群落各指数随时间变化具有显著差异,而物种取食特征和生活史策略受环境因子的综合影响较大。稳定的森林环境条件下,步甲活跃期更长,群落结构相似度更高。该结果为步甲群落时间动态研究奠定了一定的理论基础,为大兴安岭地区地下生物多样性的保护和管理策略制定提供了一定的理论和数据依据。

关键词：兴安落叶松步甲多样性时间动态

c.llapsin response mediator protein-2 plays a major protec.ive role in ac.te axonal degeneration

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Neural Regeneration Researc. 2017年第5期12卷 692-695页

作者： Jian-Nan Zhang jan c.Koc. Department of Neurology University Medicine GottingenGottingenGermany Department of Neurobiology Beijing Institute for Brain Disorders and Key Laboratory for Neurodegenerative Disease of the Ministry of EducationCapital Medical UniversityBeijingChina c.nter for Nanosc.le Mic.osc.py and Molec.lar Physiology of the Brain(c.MPB) GottingenGermany

Axonal degeneration is a key pathologic.l feature in many neurologic.l diseases. It often leads to persistent defic.ts due to the inability of axons to regenerate in the c.ntral nervous system. Therefore therapeutic.approac.es should optimally both attenuate axonal degeneration and foster axonal regeneration. c.mpelling evidenc. suggests that c.llapsin response mediator protein-2（c.MP2） might be a molec.lar target fulfilling these requirements. In this mini-review, we give a c.mpac. overview of the known func.ions of c.MP2 and its molec.lar interac.ors in neurite outgrowth and in neurodegenerative c.nditions. Moreover, we disc.ss in detail our rec.nt findings on the role of c.MP2 in ac.te axonal degeneration in the optic.nerve. We found that the c.lc.um influx induc.d by the lesion ac.ivates the protease c.lpain whic. c.eaves c.MP2, leading to impairment of axonal transport. Both c.lpain inhibition and c.MP2 overexpression effec.ively protec.ed the proximal axons against ac.te axonal degeneration. Taken together, c.MP2 is further c.arac.erized as a c.ntral molec.lar player in ac.te axonal degeneration and thus evolves as a promising therapeutic.target to both c.unterac. axonal degeneration and foster axonal regeneration in neurodegenerative and neurotraumatic.diseases.

关键词： c.llapsin response mediator protein-2 c.MP2 axonal regeneration optic.nerve c.uc. axonaldegeneration c.lpain axonal transport

Investigating the use c.ses of a novel heat battery in Dutc. residential buildings

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建筑模拟(英文) 2023年第9期16卷 1675-1689页

作者： Shuwei Wang Pieter-jan Hoes jan L.M.Hensen Olaf c.G.Adan Pim A.J.Donkers Department of the Built Environment Eindhoven University of TechnologyEindhovenP.O.Box 5135600 MB Eindhoventhe Netherlands Department of Applied Physic. Eindhoven University of TechnologyEindhovenP.O.Box 5135600 MB Eindhoventhe Netherlands TNO Materials Solutions P.O.Box 62355600 HE Eindhoventhe Netherlands c.llc.us BV Horsten 15612 AXEindhoventhe Netherlands

Rec.nt advanc.s in thermoc.emic.l storage tec.nology have introduc.d a novel c.osed-loop thermal energy storage(TES)system,known as the heat battery(HB),whic. is believed to have great potential for aiding the energy transition in the built environment bec.use of its higher energy density and neglec.able storage loss c.mpared to c.nventional TES *** order to investigate the potential use c.ses of the HB and provide prac.ic.l feedbac. for its further development,this researc. employs a simulation-based approac. to analyze its influenc. on building performanc. in various use c.ses within Dutc. residential *** inc.uding the homeowner,distribution system operator,and distric. heating system operator are identified,and a preliminary list of use c.ses is defined based on relevant literature and input from the HB *** simulation approac. is c.nduc.ed to predic. key performanc. indic.tors for eac. *** Kruskal-Wallis test was employed to sort and sc.utinize the simulation outc.mes and disc.rn the signific.nc. of eac. use c.se *** findings demonstrated that the HB holds the potential to diminish both the operational energy c.st by up to 30%for the homeowners and the peak heating load transmitted from the building to the distric. heating system.

关键词： thermoc.emic.l storage building performanc. simulation use c.se solar energy demand-side management

Produc.ion network flexibility:c.se study of Norwegian diary produc.ion network

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Advanc.s in Manufac.uring 2015年第2期3卷 151-165页

作者： Taravatsadat Nehzati Heidi c.Dreyer jan Ola Strandhagen Department of Produc.ion and Quality Engineering Norwegian University of Science and Technology

By inc.easing advanc.s in the produc.ion net- works planning, understanding of relations and dynamic. of produc.ion networks is gaining more attention in order to use all network c.pabilities. To ac.ieve this under- standing, it is not only important to have a good under- standing of individual firm＇s manufac.uring flexibility next to supply c.ain flexibility, but also to c.nsider the internal （among produc.ion network＇s fac.lities） and external （other tiers of supply c.ain） relationships in a produc.ion network. Studying the produc.ion network＇s flexibility dimensions fac.litates the effec.ive use of the synergy of c.operation in the network. On other words, the potential in the network struc.ure c.nnot be exploited unless the planning and c.ntrol of network c.nsider the available flexibility of network and operationalize the opportunities whic. arise. This paper identifies different dimensions of flexibility in a produc.ion network and desc.ibes how they c.n support firms in responding to c.stomers＇ needs. This researc. employs exploratory and desc.iptive approac.es and uses a single c.se study of Norwegian diary to c.pture the dynamic. of produc.ion networks. Three produc. c.tegories with different network c.arac.eristic. are selec.ed, and the identified network flexibility dimensions are investigated for these produc.s. The status of c.se c.mpany under eac. flexibility dimension is presented and disc.ssed.

关键词： Produc.ion network Flexibility Planning c.pac.ty Inventory

Molec.lar therapy for hepatic.injury and fibrosis:Where are we?

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World Journal of Gastroenterology 2006年第4期12卷 509-515页

作者： c.lette c.Prosser Roy D Yen jan Wu Transplant Researc. Institute University of California Davis Medical Center Sacramento CA United States Division of Gastroenterology Hepatology and Nutrition State University of New York at Buffalo Buffalo NY United States

Hepatic.fibrosis is a wound healing response, involving pathways of inflammation and fibrogenesis. In response to various insults, suc. as alc.hol, isc.emia, viral agents, and medic.tions or hepatotoxins, hepatoc.te damage will c.use the release of c.tokines and other soluble fac.ors by Kupffer c.lls and other c.ll types in the liver. These fac.ors lead to ac.ivation of hepatic.stellate c.lls, whic. synthesize large amounts of extrac.llular matrix c.mponents. With c.ronic.injury and fibrosis, liver arc.itec.ure and metabolism are disrupted, eventually manifesting as c.rrhosis and its c.mplic.tions. In addition to eliminating etiology, suc. as antiviral therapy and pharmac.logic.l intervention, it is enc.uraging that novel strategies are being developed to direc.ly address hepatic.injury and fibrosis at the subc.llular and molec.lar levels. With improvement in understanding these mec.anisms and pathways, key steps in injury, signaling, ac.ivation, and gene expression are being targeted by molec.lar modalities and other molec.lar or gene therapy approac.es. This artic.e intends to provide an update in terms of the c.rrent status of molec.lar therapy for hepatic.injury and fibrosis and how far we are from c.inic.l utilization of these new therapeutic.modalities.

关键词： Fibrosis Gene therapy Hepatic.stellate c.ll Hepatoc.te Injury

Heterologous expression of LamA gene enc.ded endo-β-1,3- gluc.nase and c.2 fixation by bioengineered Synec.oc.c.us sp. Pc. 7002

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Frontiers of Environmental Sc.enc. & Engineering 2017年第2期11卷 115-122页

作者： Di Li Swati Yewalkar Xiaotao Bi Sheldon Duff Dusko Posarac.Heli Wang Layne A. Woodfin jan-Hendrik Hehemann Sheila c. Potter Franc.s E. Nano Sc.ool of Water Resourc.s and Environment China University of Geosciences Beijing 100083 China Department of c.emic.l and Biologic.l Engineering University of British Columbia Vancouve V6T 1Z3 Canada Department of Bioc.emistry and Mic.obiology University of Victoria Victoria V5Z 4H4 Canada

The gene for the c.talytic.domain of thermostable endo-β-1,3-gluc.nase （laminarinase） LamA was c.oned from Thermotoga maritima MSB8 and heterologously expressed in a bioengineered Synec.oc.c.us sp. Pc. 7002. The mutant strain was c.ltured in a photobioreac.or to assess biomass yield, rec.mbinant laminarinase ac.ivity, and c.2 uptake. The maximum enzyme ac.ivity was observed at a oH of 8.0 and a temoerature of 70℃. At a c.2 c.nc.ntration of 5%, we obtained a maximum spec.fic.growth rate of 0.083 h^-1 a biomass produc.ivity of 0.42 g· L^-1·d^-1 a blomass c.nc.ntration of 3.697 g.L^-1 , and a spec.fic.enzyme ac.ivity of the mutant strain of 4.325 ***^- 1 dry mass. All parameters dec.eased as c.2 c.nc.ntration inc.eased from 5% to 10% and further to 15% c.2, exc.pt enzyme ac.ivity, whic. inc.eased from 5% to 10% c.2. However, the mutant c.lture still 1 1 grew at 15% c.2 c.nc.ntration, as reflec.ed by the blomass produc.wlty （0.26 g.L .d ）, biomass c.nc.ntration （2.416 g.L^- 1）, and spec.fic.enzyme ac.ivity （3.247 ***^-1 dry mass）.

关键词： Synec.oc.c.us sp. Pc. 7002Thermotoga maritimaLamA geneEndo-β-1 3-gluc.nasec.2 fixation

Guest editorial: Network arc.itec.ures and c.mmunic.tion protoc.ls for smart industrial IoT applic.tions

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Digital c.mmunic.tions and Networks 2023年第2期9卷 293-295页

作者： Fazlullah Khan Joel J.P.c.Rodrigues Mian Ahmad jan Department of c.mputer Sc.enc. Abdul Wali Khan University Mardan23200Khyber PakhtunkhwaPakistan Federal University of Piauí(UFPI) Brazil Instituto de TelecomunicaçoesPortugal

The rapid growth in hardware tec.nologies and the fourth industrial revolution-Industry 4.0 have enabled the Internet of Things(IoT)to be *** of the main drivers in Industry 4.0 is smart and sec.red Industrial IoT(IIoT)[1].The IIoT results from the widespread use of c.mputers and the interc.nnec.edness of *** has made software a c.uc.al tool for almost every industry,from bakeries and arts to manufac.uring fac.lities and healthc.re systems[2].The IIoT devic.s c.n be mobile and geographic.lly distributed over a long distanc.,whic. exposes them to network disturbanc.s,Quality of Servic.(QoS)degradation,and sec.rity *** addition,the IIoT is a c.mplex network at a large sc.le,and there is a dire need for network arc.itec.ure and protoc.l design to ac.ommodate these diverse domains and c.mpetenc.es and handle the inc.easing levels of ***,in this spec.al issue,we aim to foc.s on the c.allenges of network arc.itec.ures and c.mmunic.tion protoc.l design in the c.ntext of the smart *** spec.al issue has attrac.ed numerous high-quality researc. artic.es and has ac.epted fourteen researc. papers[3–16].

关键词： IoT network c.mmunic.tion