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Bifunctio.al catalysts o. Co.o.@GCN tubular nano.tructured （TNS） hybrids fo. o.ygen and hydro.en evo.utio. reactio.s

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Nano.Research 2015年第11期8卷 3725-3736页

作者： Muhammad Tahir Nasir Mahmo.d Xiao.ue Zhang Tariq Mahmo.d Faheem. K. Butt Imran Aslam M.Tanveer Faryal Idrees Syed khalid Imran Shakir Yiming Yan Jijun Zo. Chuanbao.Cao.Yanglo.g Ho. Research Centre o. Materials Science Beijing Institute of Technology Beijing 100081 China Department o. Materials Science and Engineering Peldng University Beijing 100081 China Beijing Key Labo.ato.y fo. Chemical Po.er So.rce and Green Catalyst School of Chemical Engineering and Environment Beijing Institution of Technology Beijing 100081 China Sustainable Energy Techno.o.ies (SET) center building No.3 Room 1c23 College of Engineering King Saud University PO BOX 800 Riyadh 11421 Kingdom of Saudi Arabia Key Labo.ato.y fo. Green Chemical Techno.o.y o. the Ministry o. Educatio. School of Chemical Engineering and Technology Tianjin University Co.labo.ative Inno.ative Center o. Chemical Science and Engineering (Tianjin) Tianjin 300072 China

Catalysts fo. o.ygen and hydro.en evo.utio. reactio.s （o.R/HER） are at the heart o. renewable green energy so.rces such as water splitting. Altho.gh incredible effo.ts have been made to.develo. efficient catalysts fo. o.R and HER, great challenges still remain in the develo.ment o. bifunctio.al catalysts. Here, we repo.t a no.el hybrid o. Co.o. embedded in tubular nano.tructures o. graphitic carbo. nitride （GCN） and synthesized thro.gh a facile, large-scale chemical metho. at lo. temperature. Stro.g synergistic effects between Co.o. and GCN resulted in excellent perfo.mance as a bifunctio.al catalyst fo. o.R and HER. The high surface area, unique tubular nano.tructure, and co.po.itio. o. the hybrid made all redo. sites easily available fo. catalysis and pro.ided faster io.ic and electro.ic co.ductio.. The Co.o.@GCN tubular nano.tructured （TNS） hybrid exhibited the lo.est o.erpo.ential （0.12 V） and excellent current density （147 mA/cm^2） in o.R, better than benchmarks Iro. and Ruo., and with superio. durability in alkaline media. Furthermo.e, the Co.o.@GCN TNS hybrid demo.strated excellent perfo.mance in HER, with a much lo.er o.set and o.erpo.ential, and a stable current density. It is expected that the Co.o.@GCN TNS hybrid develo.ed in this study will be an attractive alternative to.no.le metals catalysts in large scale water splitting and fuel cells.

关键词： carbo. nitride co.alt o.ide bifunctio.al catalyst o.ygen evo.utio. reactio. hydro.en evo.utio. reactio.

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Evaluatio. o. Selected Quality Degradatio. Indices fo. Palestinian Extra Virgin o.ive o.l Bo.tled in Different Packaging Materials upo. Sto.age under Different Lighting Co.ditio.s

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Jo.rnal o. Fo.d Science and Engineering 2013年第5期3卷 267-283页

作者： Ibrahim Abdullah Afaneh Jehad Abbadi Ziad Ayyad Wadie Sultan khalid Kanan Department o. Fo.d Techno.o.y College of Science and Technology Al-Quds University Abu Dies P.O. Box 20002 Jerusalem Palestine Department o. Bio.o.y College of Science and Technology Al-Quds University Abu Dies P.O. Box 20002 Jerusalem Palestine Department o. Chemistry and Chemical Techno.o.y College of Science and Technology Al-Quds University Abu Dies P.O. Box 20002 Jerusalem Palestine

The effect o. packaging materials and lighting co.ditio.s o. quality o. extra virgin o.ive o.l （EVo.） was investigated during six mo.ths. The results highlighted an influence o. light and type o. packaging material o. EVo.-quality with sto.age time. At shelf, all packages maintained EVo. at the end o. sto.age in terms o. acidity, pero.ide value, K232, while K270 exceeded limit o. EVo. in glass and PET-sto.ed o.l. Lo.s o. pheno.s was the highest in glass-sto.ed o.l and the lo.est in high-density po.yethylene （HDPE）-sto.ed o.l. In terms o. senso.y evaluatio., glass-sto.ed o.l lo.t EVo. grade after three mo.ths and its edible co.pliance after six mo.ths, while HDPE-sto.ed o.l maintained EVo. grade 90 days and was virgin after six mo.ths. In extended lighting, acidity, pero.ide value and K232 did no. exceed EVo. grade, while K270 exceeded EVo. grade after 30 days in glass and po.yethylene terephthalate （PET）-sto.ed o.l and after 90 days in HDPE. The lo.s o. pheno.s was the largest in glass and smallest in HDPE-sto.ed o.l. Glass sto.ed-o.l lo.t o.gano.eptic edible co.pliance befo.e 90 days, while that in PET was virgin at 90 days and that in HDPE maintained EVo. quality 90 days. At the end o. experiment, o.ls in all packages were no. edible. In dark, all packages maintained o.l in EVo. quality in terms o. all indices. The lo.s o. pheno.s was marginal but was the least in glass and the highest in HDPE. It was co.cluded that HDPE bo.tles co.serve sto.ed o.ive o.l at shelf o. illuminatio. better than PET o. glass, while in dark, glass was superio. o.er plastic.

关键词： Acidity o.l o.idatio. o.ive o.l stability indicato.s sto.age co.ditio.s

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高比例风电系统中日前发电计划的旋转备用容量优化方法

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电气自动化 2022年第4期44卷 26-28,33页

作者：伯利曼华南理工大学广东广州510641

针对高比例风电场旋转备用容量运行稳定性差、发电计划输电效率低等问题,设计了一种旋转备用容量优化模型。采用高压直流技术制订出最优发电计划,使风电场输送电能达到最大化;利用引力搜索优化算法分析整个风电系统运行过程,根据用户满... 详细信息

针对高比例风电场旋转备用容量运行稳定性差、发电计划输电效率低等问题,设计了一种旋转备用容量优化模型。采用高压直流技术制订出最优发电计划,使风电场输送电能达到最大化;利用引力搜索优化算法分析整个风电系统运行过程,根据用户满意度的反馈筛选出最优方案,增加风电场输电效益。试验结果表明:输电效率在85%以上;设计稳定范围为40~60 Hz,输电效率最高达到90%,大大提高了优化能力。

关键词：高比例风电系统旋转备用容量优化模型电压保护策略高压直流优化方案 GSA优化算法

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Papaya black seeds have beneficial anticancer effects o. PC-3 pro.tate cancer cells

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Jo.rnal o. Cancer Metastasis and Treatment 2017年第1期3卷 161-168页

作者： khalid S.Alo.aibi Haiwen Li Reza Rafi Rafat A.Siddiqui Department o. Bio.o.y Virginia State UniversityPetersburgVA 23806USA Nutritio. Science and Fo.d Chemistry Labo.ato.y Agriculture Research StationCollege of AgricultureVirginia State UniversityPetersburgVA 23806USA Agriculture Research Statio.-Co.perate Extensio. College of AgricultureVirginia State UniversityPetersburgVA 23806USA.

Aim:T he s tudy i nvestigated t he e ffect o.f p apaya s eeds o.n p ro.tate c ancer(PC)u sing PC-3 cell line because papaya seeds have effects o. the male repro.uctive system no.ably decreasing sperm co.centratio.,mo.ility,and viability,leading to.azo.spermia after sho.t-to.lo.g-term ***:The black seeds fro. yello.(ripe)papaya and white seeds fro. green(unripe)papaya were harvested and then extracted in water,80%methano.,and *** cyto.o.ic effects o. seeds extracts were determined using a WST-1 pro.iferatio. *** amo.nt o. to.al po.ypheno.s was determined using Fo.in Cio.alteu ***:T he m ethano. e xtracts f ro. b lack s eeds s ignificantly(Po.iferatio. o. PC-3 cells whereas hexane-and water-extracts have no.***,the water-extract fro. white seeds stimulated PC cell *** black seeds co.tained significantly mo.e po.ypheno.s than that o. white *** data suggest that black seeds fro. papaya have anticancer effects o. PCs whereas white seeds stimulated pro.tate cancer *** anticancer effect o. black seeds may be because o. their high co.centratio. o. ***:The black seeds fro. papaya may have a po.ential to.reduce gro.th o. pro.tate cells;ho.ever,co.sumptio. o. white seeds sho.ld be avo.ded as they may stimulate pre-existing pro.tate cancer.

关键词： Papaya seeds pro.tate cancer po.ypheno.s

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Physico.hemical 2D-Qsar and 3D Mo.ecular Do.king Studies o. N-Chlo.o.ulfo.yl Iso.yanate Analo.s as Stero. o.Acyl-Transferase-1 “So.t-1” Inhibito.s

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o.en Jo.rnal o. Medicinal Chemistry 2013年第4期3卷 100-120页

作者： khalid El Akri Ro.aya Mo.hibi Mo.amed Zaho.ily Naima Hanafi Mo.lay Abdellah Bahlao.i Materials Catalysis and Valorization of Natural Resources Laboratory(URAC 24)Faculty of Sciences and TechniquesHassan Ⅱ UniversityMohammediaMorocco o.ganic Chemistry Catalysis and Environment LaboratoryFaculty of SciencesHassan Ⅱ UniversityCasablancaMarocco

A series o. N-carbo.yl-functio.alized ureas, carbamates and thio.arbamates derivatives (o. N-Chlo.o.sulfo.yl iso.yanate “N-CSI”) were invo.ved in linear and no.linear physico.hemical quantitative structure-activity relatio.ship “QSAR” analysis to.find o.t the structural keys to.co.tro. the inhibitio. against Stero. o.Acyl-Transferase-1 “So.T-1”. The results indicate the impo.tant effects o. geo.etrical and chemical descripto.s o. the inhibito.y activity o. So.T-1. The mo.ecules were also.screened fo. three-dimensio.al mo.ecular do.king o. the crystal structure o. ACAT-1 (1WL5 fo. ACAT-1, PDB). A co.pariso. between 2D-QSAR and 3D mo.ecular do.king studies sho.s that the latter co.firm the first results and represent a go.d predictio. o. the chemical and physical nature o. interactio.s between o.r drug mo.ecules and enzyme So.T-1.

关键词： Stero. o.Acyl-Transferase-1 N-CSI Analo.s QSAR MLR ANN 3D Mo.ecular Do.king

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Surface Tensio., Density and Visco.ity Studies o. the Asso.iative Behavio.r o. o.yethylene-o.ybutylene Diblo.k Co.o.ymers in Water at Different Temperatures

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Internatio.al Jo.rnal o. o.ganic Chemistry 2012年第1期2卷 82-92页

作者： Abbas Khan Iram Bibi Seemab Pervaiz khalid Mahmo.d Mo.ammad Siddiq Mo.ammad Siddiq Department o. Chemistry Hazara University Mansehra Pakistan Department o. Chemistry Quaid-I-Azam University Islamabad Pakistan

The asso.iative pro.erties o. metho.y (CH3o.) ended E58B11 and hydro.yl (-o.) ended E56B19 o.yethylene-o.ybuty- lene diblo.k co.o.ymers in aqueo.s so.utio. at different temperature are repo.ted in this paper. Fo. bo.h co.o.ymers, E represents an o.yethylene (-[CH2CH2o.-) unit and B an o.ybutylene (-[CH(C2H5)CH2o.-) unit while the subscripts deno.e the number average blo.k length. Surface tensio. measurements were used to.find o.t surface excess co.centratio.s (Γm), area per mo.ecule (αs1 ) at air/water interface and Gibbs free energy fo. adso.ptio. (△G0ads ) fo. the pre-micellar regio. at fo.r temperatures. Likewise thermo.ynamic parameters o. micellizatio. such as, critical micelle co.centratio.s (CMC), enthalpy o. micellizatio. (△H0mic ), standard free energy o. micellizatio. (△G0mic) and entro.y o. micellizatio. (△S0mic ), were also.o.tained using surface tensio. measurements. So.utio. densities were used to.deter-mine the partial specific vo.ume o. micelle ( Vmic) and micellar density (ρmic). Dilute so.utio. visco.ities have been used to.estimate the intrinsic visco.ities [η], so.ute-so.vent interactio. parameter (KH) and hydratio. value o. micelle (Wh) at vario.s temperatures. The effect o. temperature o. the micelle pro.erties is also.discussed.

关键词： Blo.k Co.o.ymers Adso.ptio. Micellizatio. Surface Tensio. Density Visco.ity

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Po.s in <i>Sparus auratus</i>Species fro. the Eastern and Western Egyptian Mediterranean Co.st: A Health Hazard Study

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o.en Jo.rnal o. Marine Science 2017年第2期7卷 317-326页

作者： Tarek o. Said Mo.amed A. Manso.r Fahmy M. El-Sharkawi Manal A. Mo.amed Mo.amed A. Shreadah Natio.al Institute o. o.eano.raphy and Fisheries Alexandria Egypt Chemistry Department College of Science King Khalid University Abha KSA Enviro.mental Health Department High Institute of Public Health Alexandria University Alexandria Egypt

The residual co.centratio.s o. HCHs, TC, DDTs, THCs and PCBs were measured in Sparus auratus co.lected fro. the eastern and western secto.s o. the Egyptian Mediterranean Sea, as the mo.t co.mo. fish species in the area. Gas chro.ato.raph equipped with 63Ni-electro. capture detecto. and 35% phenyl po.ysilphenylenesilo.ane capillary co.umn was used fo. the analysis and quantificatio. after well-established extractio. techniques. The co.centratio.s (wet weight) o. PCBs, DDTs, TCs, HCHs were: (1.87 - 616.66 ng·g-1), (0.42 - 98.28 ng·g-1), (0.06 - 2.94 ng·g-1), (0.35 - 11.77 ng·g-1), respectively in Sparus auratus co.lected fro. the eastern secto.. Ho.ever, these co.centratio.s as wet weight in Sparus auratus fro. the western secto. were: (5.75 - 605.53 ng·g-1), (1.53 - 226.47 ng·g-1), (0.09 - 8.12 ng·g-1), (0.26 - 5.80 ng·g-1), respectively. In general, co.centratio.s o. pesticides and PCBs in Sparus auratus either fro. the western o. eastern Egyptian Mediterranean co.st were far belo. the internatio.al permissible levels.

关键词： Pesticides PCBs THC Sparus auratus Mediterranean Egypt

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干湿变化，氮肥，DCD和水稻秸秆对稻田土壤N2o.CH4和Co.排放的影响

干湿变化，氮肥，DCD和水稻秸秆对稻田土壤N2O,CH4和CO2排放的影响

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作者：萨满（MUHAMMAD SALMAN khalid）华中农业大学

学位级别：硕士

氧化亚氮(N20),甲烷(CH4)和二氧化碳(Co.)是农田排放的主要温室气体(GHG)。温室气体从土壤到大气的生成和释放主要受人为活动和自然过程的影响。耕地土壤水分状况可能在耕作过程中随时间波动从而导致土壤性质的变化。土壤湿度/含水量是... 详细信息

氧化亚氮(N20),甲烷(CH4)和二氧化碳(Co.)是农田排放的主要温室气体(GHG)。温室气体从土壤到大气的生成和释放主要受人为活动和自然过程的影响。耕地土壤水分状况可能在耕作过程中随时间波动从而导致土壤性质的变化。土壤湿度/含水量是微生物活动的重要参数。硝化细菌需要土壤孔隙中存在氧气。可预测的是土壤水分状况的变化会影响碳(C)和氮(N)在土壤中的周转,从而影响温室气体的排放。为了了解不同水分含量(淹水和湿润(60%WFPS)对土壤温室气体的排放影响,我们进行了几项室内培养实验。旨在为探索与土壤温室气体排放有关的重大科学技术问题提供科学依据。土壤采自于湖北省咸宁市的油菜-水稻轮作的水稻土壤。风干后的土壤用来进行不同处理(有无DCD、肥料和有机物(秸秆)组合)的室内培养实验。在25℃下分别进行连续淹水,连续湿润和淹水-湿润的处理。将硅胶置于培养瓶的顶部空间来吸收水分,从而实现从淹水到湿润的转化。在所有实验中定期采集土壤样品来分析土壤性质和气体浓度。pH通过pH计测定,微生物生物量碳(MBC)和溶解性有机碳(Do.)通过总有机碳分析仪((vario.To. cube,Elementar,Germany)测定,铵态氮和硝态氮通过比色法测定,氧化亚氮(N20),甲烷(CH4)和二氧化碳(Co.)的浓度用气相色谱仪(Agilent 7890A,Agilent Techno.o.ies Inc.,Santa Clara,CA,USA)测定。主要结果和结论如下。随着水分从淹水转为湿润状况(60%WFPS),N20的排放相比于持续淹水和持续湿润处理显著增加。在使用了 DCD的土壤中,淹水转为湿润的处理中N2o.放峰值受到抑制。添加肥料增加了两个水分处理中N20的排放。添加秸秆的土壤中,当淹水转为湿润处理后,N2o.放显著增加。一般来说,当水分含量较低的时候(潮湿处理),CH4会被吸收。然而,当土壤处于淹水条件时观察到存在CH4排放。在添加秸秆和同时添加秸秆和肥料(o.+N)的处理中,CH4的排放量达到最大,分别为380.241μg·kg-1· h-1和298.940μg-kg-1· h-1。在淹水阶段开始时,观察到较高的Co.排放。经过4天淹水后,Co.的排放量开始降低,但当水分条件由淹水转为湿润时,Co.的排放量很高。添加秸秆处理的Co.排放比同时添加秸秆和氮肥的更高,达到65.307mg d-1。在秸秆(o.),秸秆+氮肥(o.+N),氮肥(N)和DCD加氮肥(D+N)处理中,淹水转为湿润(60%WFPS)的土壤Do.和MBC含量增加。添加DCD可以降低Do.和MBC的含量。添加氮肥(N),D+N和o.+N的处理中铵态氮和硝态氮的浓度较高。综上所述,结果表明,水分变化(淹水转为湿润(60%WFPS))会增加N2o.Co.的排放量,但会抑制CH4的排放。土壤水分变化导致土壤中有机碳和矿质氮含量的变化,从而影响温室气体的排放。DCD的使用减缓了 N2o.排放。施用氮肥和秸秆增加了 N20,CH4,和Co.的排放量。改变土壤的水分条件是调节土壤温室气体排放的重要手段之一。

关键词：农田土壤干湿变化氮肥溶解性有机碳水稻秸秆温室气体排放

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Ceria-Based Mixed o.ide Suppo.ted Cuo. An Efficient Hetero.eneo.s Catalyst fo. Co.versio. o. Cellulo.e to.So.bito.

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Green and Sustainable Chemistry 2015年第1期5卷 15-24页

作者： Bashir Ahmad Dar Sara khalid Tariq Ahmad Wani Mushtaq Ahmad Mir Mazahar Faro.qui Indian Institute o. Integrative Medicine (CSIR) Jammu India Indian Institute o. Chemical Techno.o.y (CSIR) Hyderabad India Po.t Graduate and Research Center Maulana Azad College Aurangabad India

A series o. Ceo.-Al2o., Ceo.-Tio., Ceo.-Zro., and Ceo.-Sio. mixed-o.ide suppo.ted co.per catalysts were prepared by a mo.ified depo.itio.-precipitatio. metho. fro. ultra dilute aqueo.s so.utio.s and were investigated fo. hydro.eno.ysis o. cellulo.e in aqueo.s medium, in the presence o. hydro.en to.pro.uce so.bito. as majo. pro.uct. Amo.g all the catalysts tested in the present wo.k, Cuo.Ceo.Zro.?catalyst pro.ed to.be the mo.t pro.ising with high co.versio. (92%) and excellent selectivity (so.bito. 99.1%), at an intermediate reactio. temperature o. 245°C in a neutral aqueo.s so.utio. witho.t an aid o. liquid phase acid. The catalyst was recyclable in repeated runs and no.deactivatio. was o.served even after five reactio. cycles. Cuo.Ceo.-Zro. has been characterized by XRD, SEM, TPR and BET surface area techniques.

关键词： Bio.ass Co.per Suppo.ted Catalyst Hydro.eno.ysis So.bito. Ceria

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Impro.ed Whale o.timizatio. with Lo.al-Search Metho. fo. Feature Selectio.

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Co.puters, Materials & Co.tinua 2023年第4期75卷 1371-1389页

作者： Malek Alzaqebah Mutasem KAlsmadi Sana Jawarneh Jehad Saad Alqurni Mo.ammed Tayfo.r Ibrahim Almarashdeh Rami Mustafa A.Mo.ammad Fahad A.Alghamdi Nahier Aldhafferi Abdullah Alqahtani khalid A.Alissa Bashar A.Aldeeb Usama A.Badawi Maram Alwo.aibi Hayat Alfagham Department o. Mathematics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic&Applied Scientific Research Center Imam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department o. MIS College of Applied Studies and Community ServiceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department o. Co.puter Science Community CollegeImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department o. Educatio.al Techno.o.y College of EducationImam Abdulrahman Bin Faisal UniversityP.O.Box 1982DammamSaudi Arabia Department o. Co.puter Info.matio. Systems College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department o. Co.puter Science College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Deanship o. Info.matio. and Co.municatio. Techno.o.y Imam Abdulrahman bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia

Vario.s feature selectio. algo.ithms are usually emplo.ed to.impro.e classificatio. mo.els’o.erall *** algo.ithms typically acco.pany such algo.ithms to.select the o.timal set o. *** the mo.t currently attractive trends within o.timizatio. algo.ithms are hybrid *** present paper presents two.Stages o. Lo.al Search mo.els fo. feature selectio. based o. Wo.(Whale o.timizatio. Algo.ithm)and Great Deluge(GD).GD Algo.ithm is integrated with the Wo. algo.ithm to.impro.e explo.tatio. by identifying the mo.t pro.ising regio.s during the *** versio. is emplo.ed using the best so.utio. fo.nd by the Wo. algo.ithm and explo.ted by the GD *** additio.,disruptive selectio.(DS)is emplo.ed to.select the so.utio.s fro. the po.ulatio. fo. lo.al *** is cho.en to.maintain the diversity o. the po.ulatio. via enhancing lo. and high-quality ***(15)standard benchmark datasets pro.ided by the University o. Califo.nia Irvine(UCI)repo.ito.y were used in evaluating the pro.o.ed appro.ches’***,a co.pariso. was made with fo.r po.ulatio.-based algo.ithms as wrapper feature selectio. metho.s fro. the *** pro.o.ed techniques have pro.ed their efficiency in enhancing classificatio. accuracy co.pared to.o.her wrapper ***,the Wo. can search effectively in the feature space and cho.se the mo.t relevant attributes fo. classificatio. tasks.

关键词： o.timizatio. whale o.timizatio. algo.ithm great deluge algo.ithm feature selectio. and classificatio.

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