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Geochemical,mineralogical,and petrological characteristics of the Cretaceous coal from the middle Benue Trough Basin,Nigeria:Implication for coal depositional environments

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Energy Geoscience 2022年第3期3卷 300-313页

作者： Segun A.Akinyemi James C.Hower Henry Y.madukwe Bemgba B.Nyakuma mohammed B.Nasirudeen Timileyin A.Olanipekun Rabelani mudzielwana mugera W.Gitari Luis F.O.silva department of Geology Faculty of ScienceEkiti State UniversityP.M.B 5363Ado EkitiEkiti StateNigeria Energy Environmental and Nanosciences GroupDepartment of GeologyEkiti State UniversityP.M.B 5363Ado-EkitiEkiti StateNigeria University of Kentucky Centre for Applied Energy Research2540 ResearchPark DriveLexingtonKY40511USA department of Earth&Environmental Sciences University of KentuckyLexingtonKY40506USA department of Chemistry Faculty of SciencesBenue State UniversityP.M.B.102119MakurdiBenue StateNigeria department of Chemistry Faculty of ScienceFederal University of LafiaP.M.B.146LafiaNasarawa StateNigeria Institute of Earth and Environmental Sciences Albert Ludwigs Universitat FreiburgAlbert Straße 23-B79104Freiburg Breisgau Germany department of Ecology and Resources management University of VendaPrivate BagX5050Thohoyandou0950LimpopoSouth Africa department of Civil and Environmental Universidad de la CostaCalle 58#55-66080002BarranquillaAtlanticoColombia

The Benue Trough Basin (BTB) of Nigeria is geologically and geo-morphologically subdivided into upper,middle, and lower segments. The BTB is the subject of geological research due to its rich coal depositsthat have the potential for oil and gas. The purpose of the present study is to examine the origins,depositional environments, and thermal history of the selected coals and the processes that influencetheir quality. Coal samples from different open cast coal mines in the middle BTB were examined usingproximate and ultimate, x-ray diffraction (XRD), x-ray fluorescence (XRF), laser ablation induced coupledplasma (LA-ICPmS), and petrographical analyses. The coal samples contained mainly quartz, kaolinite,and organic carbon. The XRD spectra peaks revealed the triclinic and monoclinic structure of kaolin. TheSiO2/Al2O3 ratios confirmed the dominance of quartz and kaolinite. The Ni/Co versus v/Cr, Cu/Zn, and v/mo values in the studied coals suggest oxic depositional environments, whereas the v/(Ni þ v) and v/(v þ Cr) values indicate oxic to suboxic conditions. The Ce/Ce* values are slightly below 1, which indicates a suboxic depositional environment. maceral texture is indicative of transformations from subbituminous to high volatile C or B bituminous coal. The maceral components and mineral matter(10%) of the studied coals imply deposition in the planar margin mire, and a river system of planarmargin mire environments, respectively. The high gelification index (GI) and tissue preservation index(TPI) values indicate peat accumulation developed within a wet forest swamp. The ternary diagram ofthe maceral component suggests deposition in a wet moor environment with intermittent moderate tohigh flooding episodes. The studied coals are sub-hydrous vitrinite inferring hydrogen-poor and thermally immature characteristics. The low v and Ni contents, low H/C and high O/C, indicate Type IIIterrestrial organic matter with the potential to generate gaseous hydrocarbons. The investi

关键词： Coal maceral Trace elements mineralogy depositional environments

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云南咖啡锈菌生理小种鉴定

云南咖啡锈菌生理小种鉴定

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2017年全国热带作物学术年会

作者：白学慧 v.m.P.váRZEA 李锦红 m.C.silva 郭铁英张洪波周华云南省德宏热带农业科学研究所 Centro de Investiga??o das Ferrugens do Cafeeiro-Instituto Superior de Agronomia-Universidade de Lisboa

【研究目的】明确云南咖啡锈菌生理小种类型,为咖啡锈病防控及抗锈病育种提供科学依据;【方法】于2011～2015年间在云南芒市、泸水县、隆阳区、等12个县（市）的生产品种上采集咖啡锈病标样51份,采用温室接种的方法对19个鉴别品种接种...

【研究目的】明确云南咖啡锈菌生理小种类型,为咖啡锈病防控及抗锈病育种提供科学依据;【方法】于2011～2015年间在云南芒市、泸水县、隆阳区、等12个县（市）的生产品种上采集咖啡锈病标样51份,采用温室接种的方法对19个鉴别品种接种咖啡锈菌,调查各鉴别品种的发病程度;【结果】鉴定出9个生理小种,分别为vIII（v2,3,5）、XXXIII（v5,7orv5,7,9）、XXXIv（v2,5,7or v2,5,7,9）、XXXvII（v2,5,6,7,9）、XLI（v2,5,8）、XLII（v2,5,7,8orv2,5,7,8,9）、New race （v2,5,6,7 or v2,5,6,7,9）、New race （v1,2,5,7 or v1,2,5,7,9）、New race （v1,5,7orv1,5,7,9）。XXXIv为优势小种,占测试样本的54.91%,XXXIII、XXXvII、vIII、XLI分别占测试样本的15.68%、11.76%、5.88%和3.93%,XLII、New race（v2,5,6,7 or v2,5,6,7,9）、New race （v1,2,5,7 or v1,2,5,7,9）、New race （v1,5,7 or v1,5,7,9）各种1.96%,vIII号生理小种寄主品种为S.288、XXXvII号生理小种寄主品种为CatimorT5175、其他生理小种寄主品种均为Catimor7963;【结论】XXXIII、XXXIv、XLI、XLII、New race （v2,5,6,7 or v2,5,6,7,9）、New race （v1,2,5,7 or v1,2,5,7,9）、New race （v1,5,7 or v1,5,7,9）等新小种的产生,使云南主栽品种Catimor7963丧失了抗锈性,标志着云南咖啡锈菌群体结构发生了变异,应引起育种和推广部门的高度重视。

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R&D of back-end electronics for improved resistive plate chambers for the phase 2 upgrade of the CmS end-capmuon system

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Radiation detection Technology and methods 2022年第3期6卷 306-316页

作者： H.Kou Z.-A.Liu J.Zhao J.Song Q.Hou W.Diao P.Cao W.Gong N.Wang A.Samalan m.Tytgat m.El Sawy G.A.Alves F.marujo E.A.Coelho F.Torres Da silva de Araujo E.m.Da Costa H.Nogima A.Santoro S.Fonseca de Souza D.de Jesus Damiao m.Thiel m.Barroso Ferreira Filho K.mota Amarilo A.Aleksandrov R.Hadjiiska P.Iaydjiev m.Rodozov m.Shopova G.Sultanov A.Dimitrov L.Litov B.Pavlov P.Petkov A.Petrov E.Shumka S.J.Qian C.Avila D.Barbosa A.Cabrera A.Florez J.Fraga J.Reyes Y.Assran m.A.mahmoud Y.mohammed I.Laktineh G.Grenier m.Gouzevitch L.mirabito K.Shchablo C.Combaret W.Tromeur G.Galbit A.Luciol X.Chen I.Bagaturia I.Lomidze Z.Tsamalaidze v.Amoozegar B.Boghrati m.Ebraimi E.Zareian m.mohammadi Najafabadi m.Abbrescia G.Iaselli G.Pugliese F.Loddo N.de Filippis R.Aly D.Ramos W.Elmetenawee S.Leszki I.margjeka D.Paesani L.Benussi S.Bianco D.Piccolo S.meola S.Buontempo F.Carnevali L.Lista P.Paolucci F.Fienga A.Braghieri P.Salvini P.montagna C.Riccardi P.vitulo E.Asilar J.Choi T.J.Kim S.Y.Choi B.Hong K.S.Lee H.Y.Oh J.Goh I.Yu C.Uribe Estrada I.Pedraza H.Castilla-valdez R.L.Fernandez A.Sanchez-Hernandez E.vazquez m.Ramirez-Garcia N.Zaganidis A.Radi H.Hoorani S.muhammad A.Ahmad I.Asghar m.A.Shah W.A.Khan J.Eysermans I.Crotty on behalf of the CmS muon Group department of Physics and Astronomy Ghent UniversityProeftuinstraat 869000 GhentBelgium UniversitéLibre de Bruxelles Avenue Franklin Roosevelt50-1050 BruxellesBelgium Centro Brasileiro Pesquisas Fisicas R.Dr.Xavier Sigaud150UrcaRio de JaneiroRio de Janeiro 22290-180Brazil department de Fisica Nuclear e Altas Energias Instituto de FisicaUniversidade do Estado do Rio de JaneiroRua Sao Francisco Xavier524Rio de JaneiroRio de Janeiro 20559-900Brazil Bulgarian Academy of Sciences Institute for Nuclear Researches and Nuclear EnergyTzarigradsko Shaussee Boulevard 721784 SofiaBulgaria Faculty of Physics University of Sofia5 James Bourchier Boulevard1164 SofiaBulgaria School of Physics Peking UniversityBeijing 100871China State Key Laboratory of Particle detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences B325Main BuildingNo.19(A)Yuquan RoadShijingshan DistrictBeijing 100049China Universidad de Los Andes Carrera 1No.18A-12BogotáColombia Egyptian Network for High Energy Physics Academy of Scientific Research and Technology101 Kasr El-Einy St.CairoEgypt Suez University SuezCairo RoadElsalam CitySuez 43522Egypt Center for High Energy Physics(CHEP-FU) Faculty of ScienceFayoum UniversityEl-Fayoum 63514Egypt Univ Lyon Univ Claude Bernard Lyon 1CNRS/IN2P3IP2I LyonUMR 582269622 VilleurbanneFrance Georgian Technical University 77 Kostava Str.0175 TbilisiGeorgia School of Particles and Accelerators Institute for Research in Fundamental Sciences(IPM)P.O.Box 19395-5531 TehranIran School of Engineering Damghan UniversityDamghan ***Iran INFN Sezione di BariVia Orabona 470126 BariItaly INFN Laboratori Nazionali di Frascati(LNF)Via Enrico Fermi 4000044 FrascatiItaly INFN Sezione di NapoliComplesso University Monte S.AngeloVia Cintia80126 NapoliItaly Dipartimento di Ingegneria Elettrica e delle Tecnologie dell’Informazione UniversitàDegli Studi di Napoli Federico II80126 NapoliI

Purpose The Large Hadron Collider(LHC)at European Organization for Nuclear Research is planned to be upgraded to the high luminosity *** the luminosity makes muon triggering reliable and ofﬂine reconstruction very *** enhance the redundancy of the Compact muon Solenoid(CmS)muon system and resolve the ambiguity of track reconstruction in the forward region,an improved Resistive Plate Chamber(iRPC)with excellent time resolution will be installed in the Phase-2 CmS *** iRPC will be equipped with Front-End Electronics(FEE),which can perform high-precision time measurements of signals from both ends of the *** Back-End Electronics(BEE)need to be researched and developed to provide sophisticated functionalities such as interacting with FEE with shared links for fast,slow control(SC)and data,in addition to trigger primitives(TPs)generation and data acquisition(DAQ).method The BEE prototype uses a homemade hardware board compatible with the mTCA standard,the back-end board(BEB).BEE interacts with FEE via a bidirectional 4.8 Gbps optical paired-link that integrates clock,data,and control *** clock and fast/slow control commands are distributed from BEB to the FEE via the *** uplink is used for BEB to receive the time information of the iRPC’sﬁred strips and the responses to the fast/slow control *** have a pipelined detector data for clusterﬁnding operation,recover(demux)the time relationship of which is changed due to the transmission protocol for the continuous incoming mUXed data from *** at each bunch crossing(BX),clusteringﬁred strips that satisfy time and spatial constraints to generate *** incoming raw mUXed detector data and TPs in a time window and latency based on the trigger signal are read out to the DAQ *** Ethernet(GbE)of SiTCP and commercial 10-GbE are used as link standards for SC and DAQ,respectively,for the BEB to interact with the *** The joint test results of

关键词： CmS iRPC BEE TP DAQ SC

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绿色表面活性剂的生产及市场前景(续完)

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日用化学品科学 2022年第4期45卷 4-7,36页

作者：肖进新 C.B.B.Farias F.C.G.Almeida I.A.silva T.C.Souza H.m.meira R.C.F.S.silva J.m.Luna v.A.Santos A.Converti I.m.Banat L.A.Sarubbo 北京氟乐邦表面活性剂技术研究所北京100096 不详

2.2.3绿色表面活性剂的经济和全球市场随着消费者对环保产品的关注日益增加,其对清洁产品市场的影响也越来越大。这一需求促使人们寻找天然的或衍生的生物可降解原料,减少防腐剂和石化产品的使用。生物表面活性剂和植物基化合物是试图... 详细信息

2.2.3绿色表面活性剂的经济和全球市场随着消费者对环保产品的关注日益增加,其对清洁产品市场的影响也越来越大。这一需求促使人们寻找天然的或衍生的生物可降解原料,减少防腐剂和石化产品的使用。生物表面活性剂和植物基化合物是试图“创造或改变”的突出例子,目的是使产品在生态上更具可持续性[6]。

关键词：绿色表面活性剂环保产品石化产品生物表面活性剂清洁产品生物可降解植物基可持续性

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Differential Anti-Inflammatory Effects of Three Purified Omega Unsaturated Fatty Acids on Collagen-Induced Arthritis in mouse

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modern Research in Inflammation 2016年第3期5卷 31-44页

作者： Pamela Izaret Pérez-martínez víctor Gabriel Hernández Oscar Rodríguez-Espinosa Patricia Arce-Paredes Oscar rojas-Espinosa departamentos de Inmunología Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional Ciudad de México México departamentos de morfología Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional Ciudad de México México

Background: The mediterranean Diet (mD) has been linked to a reduced risk of developing degenerative diseases, including atherosclerosis, heart stroke, diabetes, arthritis and cancer. However, only a few scientific investigations have attempted to validate this impression. The ingredients of the mD include significant amounts of omega (ω3, ω6, and ω9) unsaturated fatty acids (UFAs). A few studies of these UFAs in the prevention or treatment of arthritis have yielded controversial results, but a general belief regarding their beneficial effects has prevailed. Objective: To investigate the effects of three relevant UFAs, namely Docosahexaenoic Acid (DHA), Arachidonic Acid (AA), and Oleic Acid (OA) (ω3, ω6, and ω9, respectively), in the development of arthritis using a murine model of Collagen-Induced Arthritis (CIA). methods: DBA-1 mice were immunized with chicken collagen type II (CII) and were subsequently treated with ω-UFAs for 53 days. dexamethasone (deXA) was used as a positive anti-inflammatory agent. The effect of the treatments was evaluated through several parameters: inflammation indices, antibody levels, cell prolifera- tion, and histopathological findings. Results and Conclusion: The anti-inflammatory effect of the tested substances was inversely correlated with the histopathological findings: a greater anti- inflammatory effect was associated with less articular damage. Oleic acid (ω9) was the most efficient anti-inflammatory UFA, followed by DHA and then AA. deXA completely inhibited the development of arthritis, whereas the untreated CII-immunized mice developed the most severe articular damage. DBA-1 mice with CII-induced arthritis constitute an adequate model for the study of arthritis and its treatment.

关键词： Collagen CIA DBA-1 mice Omega-UFAs dexamethasone Anti-Inflammatory

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Intelligent System design for Stator Windings Faults Diagnosis:Suitable for maintenance Work

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Journal of Software Engineering and Applications 2013年第10期6卷 526-532页

作者： Lane m.Rabelo Baccarini vinícius S.Avelar valceres vieira R.E.silva Gleison F.v.Amaral department of Electrical Engineering Federal University of Sao Joao del ReiPraca Frei OrlandoBrasil

The short circuit is a severe fault that occurs in the stator windings. Therefore, it is very important to diagnose this type of failure in its beginning before it causes unscheduled stop and the machine loss. In this context, the Support vector machine (Svm) is a tool of considerable importance for standard classification. From some training data, it can diagnose whether or not there is a short circuit beginning, and which is important for predictive maintenance. This work proposes a technique for early detection of a short circuit between the turns aiming at its implementation in a real plant. The paper shows simulation and experimental results, and validates the proposed technique.

关键词： Fault Diagnosis Support vector machines maintenance Work Software Tool Winding Short-Circuit

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Preconcentration of Cadmium in Environmental Samples by Cloud Point Extraction and determination by FAAS

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American Journal of Analytical Chemistry 2010年第3期1卷 127-134页

作者： C. Bosch Ojeda F. Sánchez rojas J. m. Cano Pavón 不详

Cloud point extraction (CPE) has been used for the preconcentration of cadmium, after the formation of a complex with 1, 5-bis(di-2-pyridylmethylene) thiocarbonohydrazide (DPTH), and further determination by flame atomic absorption spectrometry (FAAS) using Triton X-114 as surfactant. The main factors affecting the CPE, such as concentration of Triton X-114 and DPTH, pH, equilibration temperature and incubation time, were optimized for the best extract efficiency. Under the optimum conditions i.e., pH 5.4, [DPTH] = 6x10-3%, [Triton X-114] = 0.25% (v/v), an enhancement factor of 10.5 fold was reached. The lower limit of detection (LOD) obtained under the optimal conditions was 0.95 μg L?1. The precision for 8 replicate deter- minations at 20 and 100 μgL?1 Cd were 2.4 % and 2 % relative standard deviation (R.S.D.). The calibration graph using the preconcentration method was linear with a correlation coefficient of 0,998 at levels close to the detection limit up to at least 200 μgL?1. The method was successfully applied to the determination of cadmium in water, environmental and food samples and in a BCR-176 standard reference material.

关键词： Cadmium Flame Atomic Absorption Spectrometry Cloud Point Extraction Triton X-114 Water Samples Food Samples

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Antioxidant Activity and Phytochemical Profile of Spondias tuberosa Arruda Leaves Extracts

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American Journal of Plant Sciences 2015年第19期6卷 3038-3044页

作者： Amanda D.A.Uchoa Weslley F.Oliveira Aline P.C.Pereira Alexandre G.silva Bruna m.P.C.Cordeiro Carolina B.malafaia Clébia m.A.Almeida Nicácio H.silva Juliana F.C.Albuquerque márcia v.silva maria T.S.Correia departamento de Bioquímica Centro de Ciências BiológicasUniversidade Federal de PernambucoRecifeBrazil Instituto Nacional do Semiárido(INSA) Campina GrandeBrazil departamento de Antibióticos Centro de Ciências BiológicasUniversidade Federal de PernambucoRecifeBrazil

Spondias tuberosa Arruda (umbuzeiro), a Brazilian semiarid plant, is a species of great economic, social, and ecological importance. In folk medicine, the leaves have been used in the treatment of diabetes, inflammation, stomach and uterine pains, and constipation. In this study, the antioxidant properties of ethyl acetate and methanol leaves extracts were evaluated in vitro using different methods: free radicals elimination by DPPH and ABTS assays, and transition metal reduction by phosphomolybdenium assay. In addition, a phytochemical study was also carried out. The methanolic leaves extracts showed the strongest antioxidant activity and the higher values for total phenolic and flavonoids. The results showed that S. tuberosa leaves have antioxidant activity and this seems to be related to the phenolic content.

关键词： Umbuzeiro Phenolic Compounds Flavonoids Antioxidants

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Hormonal modulation of reproduction and fertility signaling in polistine wasps

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Current Zoology 2021年第5期67卷 519-530页

作者： Cintia Akemi OI Rafael Carvalho DA silva Ian STEvENS Helena mendes FERREIRA Fabio Santos NASCImENTO Tom WENSELEERS Laboratory of Socioecology and Social Evolution KU LeuvenLeuven 3000Belgium Faculdade de Filosofia Ciencias e Letras de Ribeirao PretoDepartamento de BiologiaUniversidade de Sao Paulo—USPRibeirao PretoSP 14040-901Brazil

In social insects,it has been suggested that reproduction and the production of particular fertilitylinked cuticular hydrocarbons(CHC)may be under shared juvenile hormone(JH)control,and this could have been key in predisposing such cues to later evolve into full-fledged queen pheromone ***,to date,only few studies have experimentally tested this“hormonal pleiotropy”***,we formally test this hypothesis using data from four species of Polistine wasps,Polistes dominula,Polistes satan,mischocyttarus metathoracicus,and mischocyttarus cassununga,and experimental treatments with JH using the JH analogue methoprene and the anti-JH *** line with reproduction being under JH control,our results show that across these four species,precocene significantly decreased ovary development when compared with both the acetone solvent-only control and the methoprene *** with the hormonal pleiotropy hypothesis,these effects on reproduction were further matched by subtle shifts in the CHC profiles,with univariate analyses showing that in *** and *** the abundance of particular linear alkanes and mono-methylated alkanes were affected by ovary development and our hormonal *** results indicate that in primitively eusocial wasps,and particularly in Polistes,reproduction and the production of some CHC cues are under joint JH *** suggest that pleiotropic links between reproduction and the production of such hydrocarbon cues have been key enablers for the origin of true fertility and queen signals in more derived,advanced eusocial insects.

关键词： Polistinae wasps fertility cues queen pheromones cuticular hydrocarbons juvenile hormone

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Calculation of Dose in Healthy Organs,during Radiotherapy 4-Field Box 3D Conformal for Prostate Cancer,Simulation of the Linac 2300,Radiotherapy Room and mAX Phantom

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International Journal of medical Physics, Clinical Engineering and Radiation Oncology 2013年第2期2卷 61-68页

作者： Jardel L.Thalhofer Wilson F.Rebello Samanda A.Correa Ademir X.silva Edmilson m.Souza delano v.Batista Programa de Engenharia Nuclear Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Secao de Engenharia Nuclear Instituto Militar de EngenhariaRio de JaneiroBrazil Comissao Nacional de Energia Nuclear Rio de JaneiroBrazil Centro Universitário Estadual da Zona Oeste Rio de JaneiroBrazil Instituto Nacional de Cancer Rio de JaneiroBrazil

In men, prostate cancer is one of the most frequent types, and radiotherapy is adopted as a form of treatment. Although there are efforts to minimize the dose in the healthy organ and tissues adjacent to the tumor during radiotherapy, these organs are affected by the secondary scattered and leakage radiation originating from the therapeutic beam and these doses deposited in the healthy organs, can induce the appearance of new focal points of cancer. The aim of this study is to calculate the equivalent and effective doses, due to photons and neutrons, in healthy organs of a patient submitted to radiotherapy treatment for prostate cancer. Computed simulation of radiotherapy treatment for prostate cancer was used to perform the dose calculations, adopting the treatment protocol used at INCA (Brazilian National Cancer Institute). The mCNPX code was employed in the simulation radiation transport while the male voxel mAX phantom was used to represent the patient's human anatomy. The results obtained in this study indicate that the organs close to the irradiated region are predominantly affected by the dose due to photons, with an impact on organs from different systems of the body, such as the bladder, colon, and testicles, besides bone structures such as the femur, pelvis and spinal column. The results obtained from the doses deposited due to neutrons suggest that tibia and fibula, mandible, cranium, brain and thyroid, had the highest dose deposited due to neutrons in relation to photons. The result obtained from the effective dose was 31.47 m.v.due to photons, while the dose due to neutrons was 0.42 m.v. Note that the effective dose due to photons is significantly higher than the effective dose due to neutrons. The values calculated in this study were compared with the experimental values obtained in the literature, presenting reasonable concordance. Additionally, as described in the literature, it was verified that the dose due to photons decreases considerably with th

关键词： Radiotherapy Prostate mCNPX mAX and Linac

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