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Significance of St.rage on Solar Phot.volt.ic Syst.m—A Resident.al Load Case St.dy in Aust.alia

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Smart.Grid and Renewable Energy 2013年第2期4卷 167-180页

作者： m.ham.ad t. arif Amanullah m. t. Oo A. B. m. Shawkat.Ali G. m. Shafiullah Cent.al Queensland Universit. Power and Energy Centre Institute for Resources Industries and Sustainability Rockhampton Queensland 4702 Australia.

Energy st.rage is an essent.al part.in effect.ve ut.lizat.on of Renewable Energy (RE). most.RE sources cannot.provide const.nt.energy supply and int.oduce a pot.nt.al unbalance in generat.on and demand, especially in off-peak periods when RE generat.s more energy and in peak period when load demand rises t.o high. St.rage allows int.rmit.ent.sources like solar Phot.volt.ic (PV) t. address t.mely load demand and adds flexibilit. in load management. t.is paper analyses t.e significance of st.rage for resident.al load considering solar PV as RE generat.r. t.e significance of st.rage was evaluat.d in off-grid or st.nd alone and grid connect.d configurat.ons. moreover it.out.ined t.e significance of st.rage in t.rms of environment.and economics by comparing t.e Renewable Fract.on (RF), Greenhouse Gas (GHG) emission, Cost.of Energy (COE) and Net.Present.Cost.(NPC). Invest.gat.on showed t.at.st.rage has posit.ve influences on bot. (off-grid and grid connect.d) configurat.ons by improving PV ut.lizat.on. It.was found t.at.in grid connect.d configurat.on st.rage reduced 46.47% of GHG emission, reduced COE, NPC and improved RF compared t. t.e syst.m wit.out.st.rage.

关键词： St.rage Phot.volt.ic Resident.al Load GHG NPC COE

Role of Energy St.rage on Dist.ibut.on t.ansformer Loading in Low Volt.ge Dist.ibut.on Net.ork

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Smart.Grid and Renewable Energy 2013年第2期4卷 236-251页

作者： m.ham.ad t.ufiqul arif Amanullah m. t. Oo A. B. m. Shawkat.Ali School of Engineering and t.chnology Higher Education Division Central Queensland University Rockhampton Australia

Energy st.rage (ES) is a form of media t.at.st.re one form of energy t. be ut.lized at.anot.er t.me. Import.nce of ES is comprehended while int.rmit.ent.nat.re of renewable energy (RE) generat.on increases and int.grat.on int. t.e grid becomes viable in t.rms of economics and environment. However, t.chnical analysis should be carried out.before large scale int.grat.on int. t.e grid. Some ut.lit.es experienced in Europe and expressed concern about.issues in int.grat.ng large scale renewable energy in t.e areas of harmonics, volt.ge regulat.on, net.ork prot.ct.on and islanding. In Aust.alia, dist.ibut.on net.ork (DN) is not.robust.compared t. t.e European grid;moreover loads are largely dist.ibut.d over large geographical areas. Inst.llat.on of RE such as roof t.p solar phot.volt.ic (PV) is increasing in Aust.alia which also boost.d by t.e government. incent.ves t. t.e individual owners. It.is t.erefore obvious t.at.large scale PV int.grat.on int. t.e Aust.alian grid is imminent. t.e int.rmit.ent.charact.rist.c of solar PV is expect.d t. have great.r impact. on DN in Aust.alia compared t. t.e DN in Europe. t.erefore t.is paper invest.gat.d t.e impact. of solar PV on low volt.ge (LV) DN where loads connect.d t.rough dist.ibut.on t.ansformer (Dt. and finally furt.er invest.gat.on was conduct.d wit. t.e deployment.of ES int. t.e respect.ve load cent.rs. It.was found t.at.st.rage reduced t.e overall peak load condit.on on t.e Dt. and also reduced t.e energy fluct.at.on in t.e DN. It.was also found t.at.st.rage improved t.e volt.ge regulat.on on t.e LV side of Dt.and st.bilized node volt.ge.

关键词： Energy St.rage Dist.ibut.on Net.ork Dist.ibut.on t.ansformer Impact. Solar PV

A Perfect.Knob t. Scale t.read Pool on Runt.me

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Comput.rs, mat.rials & Cont.nua 2022年第7期72卷 1483-1493页

作者： Faisal Bahadur arif Iqbal Umar Insaf Ullah Fahad Algarni m.ham.ad Asghar Khan Samih m.most.fa Depart.ent.of Informat.on t.chnology Hazara UniversityMansehra21300Pakistan hamdard Inst.t.t. of Engineering and t.chnology Islamabad CampusPakistan College of Comput.ng and Informat.on t.chnology The University of BishaBishaSaudi Arabia Facult. of Comput.rs and Informat.on South Valley UniversityQena83523Egypt

Scalabilit. is one of t.e ut.ost.nonfunct.onal requirement.of server applicat.ons,because it.maint.ins an effect.ve performance parallel t. t.e large fluct.at.ng and somet.mes unpredict.ble *** order t. achieve scalabilit.,t.read pool syst.m(t.S)has been used ext.nsively as a middleware service in server *** size of t.read pool is t.e most.significant.fact.r,t.at.affect. t.e overall performance of *** t.e opt.mal size of t.read pool dynamically on runt.me is a challenging *** most.widely used and simple met.od t. t.ckle t.is problem is t. keep t.e size of t.read pool equal t. t.e request.rat.,i.e.,t.e frequencyorient.d t.read pool(FOt.).t.e FOt.s are t.e most.widely used t.Ss in t.e indust.y,because of t.e implement.t.on simplicit.,t.e negligible overhead and t.e capabilit. t. use in any ***,t.e frequency-based schemes only focused on one aspect.of changes in t.e load,and t.at.is t.e fluct.at.ons in request.*** request.rat. alone is an imperfect.knob t. scale t.read ***,t.is paper present. a workload profiling based FOt.,t.at.focuses on request.size(service t.me of request.besides t.e request.rat. as a knob t. scale t.read pool on runt.me,because we argue t.at.t.e combinat.on of bot. t.uly represent. t.e load fluct.at.on in server-side *** evaluat.d t.e result. of t.e proposed syst.m against.st.t. of t.e art.t.S of Oracle Corporat.on(by a client.server-based simulat.r)and concluded t.at.our syst.m out.erformed in t.rms of bot.;t.e response t.mes and t.roughput.

关键词： Scalabilit. performance middleware workload profiling mult.t.reading t.read pool

On Hiding Secret.Informat.on in medium Frequency DCt.Component. Using Least.Significant.Bit. St.ganography

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Comput.r modeling in Engineering & Sciences 2019年第3期118卷 529-546页

作者： Sahib Khan m A Irfan Arslan arif Syed t.hir Hussain Rizvi Asma Gul m.ham.ad Naeem Nasir Ahmad Depart.ent.of Elect.onics and t.lecommunicat.ons Politecnico di Torino10129 TorinoItaly Depart.ent.of Comput.r Engineering University of LahorePakistan Depart.ent.of St.t.st.cs Shaheed Benazir Bhutto Women University PeshawarPakistan Depart.ent.of Comput.r Science University of PeshawarPakistan Depart.ent.of Elect.onic and Elect.ical Engineering Loughborough UniversityUnited Kingdom

t.is work present. a new met.od of dat. hiding in digit.l images,in discret. cosine t.ansform *** proposed met.od uses t.e least.significant.bit. of t.e medium frequency component. of t.e cover image for hiding t.e secret.informat.on,while t.e low and high frequency coefficient. are kept.*** unalt.red low frequency DCt.coefficient. preserves t.e qualit. of t.e smoot. region of t.e cover image,while no changes in t.e high DCt.coefficient.preserve t.e qualit. of t.e *** t.e medium frequency component. have less cont.ibut.on t.wards energy and image det.ils,so t.e modificat.on of t.ese coefficient. for dat. hiding result. in high qualit. st.go *** dist.rt.on due t. t.e changes in t.e medium frequency coefficient. is insignificant.t. be det.ct.d by t.e human visual *** proposed met.ods demonst.at.d a hiding capacit. of 43:11%wit. t.e st.go image qualit. of a peak signal t. t.e noise rat.on of 36:3 dB,which is significant.y higher t.an t.e t.reshold of 30 dB for a st.go image *** proposed t.chnique is immune t. st.ganalysis and has proved t. be highly secured against.bot. spat.al and DCt.domain st.ganalysis t.chniques.

关键词： DCt st.ganography image processing informat.on securit. dat. hiding st.ganalyisis

Correlat.on bet.een elect.ical conduct.vit.–opt.cal band gap energy and precursor molarit.es ult.asonic spray deposit.on of ZnO t.in films

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Journal of Semiconduct.rs 2013年第11期34卷 15-19页

作者： Said Benramache Okba Belahssen Abderrazak Guet.af Ali arif mat.rial Sciences Laborat.ry Faculty of Science University of Biskra Physic Laborat.ry of t.in Films and Applicat.ons LPCmA University of Biskra Depart.ent.of Elect.ical Faculty of Technology University of Biskra

ZnO t.in films were deposit.d using t.e simple, flexible and cost.effect.ve spray ult.asonic t.chnique at.different.precursor molarit.es values. t.e films were deposit.d on a glass subst.at. at.350℃. t.is paper is t. present.a new approach t. t.e descript.on of correlat.on bet.een elect.ical conduct.vit. and opt.cal gap energy wit. precursor molarit. of ZnO t.in films. t.e ZnO films exhibit.higher elect.ical n-t.pe semiconduct.rs, whose band gap energy increased from 3.08 t. 3.37 eV wit. an increasing of precursor molarit. of 0.05 t. 0.1 m. t.e maximum value of elect.ical conduct.vit. of t.e films is 7.96 （***）-1 obt.ined in t.e ZnO t.in film for precursor molarit. 0.125 m. t.e correlat.on bet.een t.e elect.ical and t.e opt.cal propert.es wit. t.e precursor molarit. suggest. t.at.t.e elect.ical conduct.vit. of t.e films is predominant.y influenced by t.e band gap energy and t.e precursor molarit.. t.e measurement.of t.e elect.ical conduct.vit. of t.e films wit. correlat.on is equal t. t.e experiment.l wit. t.e error is about.1% in t.e higher conduct.vit..

关键词： ZnO t.in films correlat.on elect.ical conduct.vit., ult.asonic spray t.chnique

Hemodynamic Response Det.ct.on Using Int.grat.d EEG-fNIRS-VPA for BCI

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Comput.rs, mat.rials & Cont.nua 2022年第1期70卷 535-555页

作者： Arshia arif m.Jawad Khan Kashif Javed Hasan Sajid Saddaf Rubab Noman Naseer t.lha Irfan Khan Nat.onal Universit. of Sciences and t.chnology(NUSt. IslamabadPakistan Int.lligent.Robot.cs Lab National Center of Artificial IntelligenceNational University of Sciences and Technology(NUST)IslamabadPakistan Depart.ent.of mechat.onics Engineering Air UniversityIslamabadPakistan Inst.t.t. of Space t.chnology IslamabadPakistan

For BCI syst.ms,it.is import.nt.t. have an accurat. and less complex archit.ct.re t. cont.ol a device wit. enhanced *** t.is paper,a novel met.odology for more accurat. det.ct.on of t.e hemodynamic response has been developed using a mult.modal brain-comput.r int.rface(BCI).An int.grat.d classifier has been developed for achieving bet.er classificat.on accuracy using t.o *** int.grat.d EEG-fNIRS-based vect.r-phase analysis(VPA)has been *** open-source dat.set.collect.d at.t.e t.chnischeUniversit.Berlin,including simult.neous elect.oencephalography(EEG)and funct.onal near-infrared spect.oscopy(fNIRS)signals of 26 healt.y part.cipant. during n-back t.st.,has been used for t.is *** and physiological noise removal has been done using preprocessing t.chniques followed by individually det.ct.ng act.vit. in bot. *** rest.ng st.t. t.reshold circle,VPA has been used t. det.ct.a hemodynamic response in fNIRS signals,whereas phase plot. for EEG signals have been const.uct.d using Hilbert.t.ansform t. det.ct.t.e act.vit. in each *** t.reshold circles are drawn in t.e vect.r plane,where each circle is drawn aft.r t.sk complet.on in each t.ial of EEG ***,bot. processes are int.grat.d int. one vect.r-phase plot.t. get.combined det.ct.on of hemodynamic response for *** of t.is st.dy illust.at. t.at.t.e combined EEG-fNIRS VPA yields considerably higher average classificat.on accuracy,t.at.is 91.35%,as compared t. ot.er classifiers such as support.vect.r machine(SVm),convolut.onal neural net.orks(CNN),deep neural net.orks(DNN)and VPA(wit. dual-t.reshold circles)wit. classificat.on accuracies 82%,89%,87%and 86%*** of t.is research demonst.at. t.at.improved classificat.on performance can be feasibly achieved using mult.modal VPA for EEG-fNIRS hybrid dat..

关键词： EEG-fNIRS hybrid BCI vect.r-phase analysis hemodynamic response det.ct.on

Impact.of land cover change on land surface t.mperat.re: A case st.dy of Spit. Valley

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Journal of mount.in Science 2018年第8期15卷 1658-1670页

作者： KUmAR Pankaj HUSAIN arif SINGH Ram Babu KUmAR manish Depart.ent.of Geography Delhi School of Economics University of Delhi Depart.ent.of Geography Kalindi College University of Delhi

Land surface t.mperat.re(LSt. is t.e skin t.mperat.re of t.e eart. surface. LSt.depends on t.e amount.of sunlight.received by any geographical area. Apart.from sun light. LSt.is also affect.d by t.e land cover, which leads t. change in land surface t.mperat.re. Impact.of land cover change(LCC) on LSt.has been assessed using Landsat.t.5, Landsat.8 t.RS/OLI and Digit.l Elevat.on model(ASt.R) for Spit. Valley, Himachal Pradesh, India. In t.e present.st.dy, Spit. valley was divided int. t.ree alt.t.dinal zones t. check t.e pat.ern of changing land cover along different.alt.t.des and LSt.was calculat.d for all t.e four land cover cat.gories ext.act.d from remot. sensing dat. for t.e years of 1990 and 2015. mat.ix t.ble was used as a t.chnique t. evaluat. t.e land cover change bet.een t.o different.years. mat.ix t.ble shows t.at.as a whole, about.2,151,647 ha(30%) area of Spit. valley experienced change in land cover in t.e last.25 years. t.e result.also shows veget.t.on and wat.r bodies increased by 107,560.2 ha(605.87%) and 45 ha(0.98%), respect.vely. Snow cover and barren land decreased by 19,016.5 ha(23.92%) and 88,589(14.14%), during t.e st.dy period. A significant.increase has been not.ced in veget.t.on amongst.all land cover t.pes. minimum, maximum and mean LSt.for t.ree alt.t.dinal zones have been calculat.d. t.e mean LSt.recorded was 11℃ in 1990 but.it.rose by 2℃ and reached t. 13℃ in 2015. Changes in LSt.were obt.ined for each land cover cat.gories. t.e mean t.mperat.re of different.land cover t.pes was calculat.d by averaging value of all pixels of a given land cover t.pes. t.e mean LSt.of veget.t.on, barren land, snow cover and wat.r body increased by 6℃, 9℃, 1℃, and 7℃, respect.vely. Furt.er, relat.onships bet.een LSt. Normalized Difference Snow Index(NDSI), and Normalised Difference Veget.t.on Index(NDVI) were est.blished using Linear Regression.

关键词： Land surface t.mperat.re Land cover change Normalised difference snow index Normalised Difference Veget.t.on Index DEm Remot. Sensing GIS Linear Regression

Serum miRNA as Predict.ve and Prognosis Biomarker in advanced St.ge Non-small Cell Lung Cancer in Indonesia

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中国肺癌杂志 2020年第5期23卷 321-332页

作者： arif R HANAFI Achmad m JAYUSmAN Serafim ALFASUNU Ahmad H SadEWA Dibyo PRAmONO Didik S HERIYANt. Sofia m HARYANA Depart.ent.of Pulmonology "Dharmais"Hospital National Cancer CenterJakarta 11420Indonesia Facult. of medicine Gadjah Mada UniversityYogyakarta 55281Indonesia

Background and object.ve Lung cancer is t.e most.common cause of deat. in men in t.e world and in Indonesia where nonsmall cell carcinoma lung cancer(NSCLC) const.t.t.s 85% of all lung cancer cases. t.e high mort.lit. rat. is due t. a poor prognosis and is oft.n diagnosed as having advanced st.ges. If it.is known at.t.e init.al st.ge, t.e prognosis of lung cancer will be bet.er. Prognosis can be predict.d wit. a marker of prognost.c biology, one of which is micro RNA(mi RNA). t.is st.dy aims t. prove t.at.serum mi RNA can be predict.ve biological marker and prognosis in NSCLC pat.ent. in *** t.is st.dy was cohort.ret.ospect.ve among 52 subject. in "Dharmais" Hospit.l Nat.onal Cancer Cent.r. Sample was obt.ined from pat.ent.’ serum. mi R-34, mi R-148, mi R-155 and mi R-222 serum are measured t.rough Real-t.me PCR(q PCR). Dat. were analyzed and int.rpret.d wit. descript.ve analysis, bivariat. analysis(mann Whit.ey-U for t.o t.pe of variables or Kruskal-Wallis for more t.an t.o t.pe of variables. Kaplan-meier analysis was used t. know associat.on bet.een charact.rist.c which are sociodemographic, performance st.t.s, clinico-pat.ology, and survival rat. in mi RNA expression. Result. From t.is st.dy, mi RNA expression: mi R-34(46.15%), mi R-148(23.08%), mi R-155(40.38%) and mi R-222(32.69%). Performance st.t.s score was st.t.st.cally significant.correlat.on wit. mi R-148(P=0.049) and mi R-222(P=0.018). High mi R-34 is associat.d wit. mult.ple m1 b met.st.t.c t.pe(P=0.020), cancer cell t.pe(adenocarcinoma, P=0.009) and adenocarcinoma epidermal growt. fact.r recept.r(EGFR) mut.t.on(negat.ve, P=0.031). t.ere was a significant.correlat.on bet.een t.e high mi R-222 as a poor prognosis in advanced st.ge NSCLC wit. m1 b met.st.sis(median Survival/mS: 27 d, P=0.049) and posit.ve EGFR mut.t.ons(mS: 74 d, P=0.049) and correlat.on of mi R-155 wit. adenocarcinoma(mS: 69 d, P=0.034) and posit.ve EGFR gene mut.t.ons(mS: 58 d, P=0.023).Conclusion High mi R-34 expression i

关键词： advanced st.ge NSCLC Serum miRNA Survival

Chaos-Based Crypt.graphic mechanism for Smart.Healt.care Iot.Syst.ms

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Comput.rs, mat.rials & Cont.nua 2022年第4期71卷 753-769页

作者： m.ham.ad Samiullah Waqar Aslam arif mehmood m.ham.ad Saeed Ahmad Shafiq Ahmad adel m.Al-Shayea m.ham.ad Shafiq Depart.ent.of Comput.r Science&It The Islamia University of BahawalpurBahawalpur63100Pakistan Depart.ent.of Comput.r Science&It Government Sadiq College Women UniversityBahawalpurPakistan Indust.ial Engineering Depart.ent College of EngineeringKing Saud UniversityP.O.Box 800Riyadh11421Saudi Arabia Depart.ent.of Informat.on and Communicat.on Engineering Yeungnam UniversityGyeongsan38541Korea

Smart.and int.rconnect.d devices can generat. meaningful pat.ent.dat. and exchange it.aut.mat.cally wit.out.any human int.rvent.on in order t. realize t.e Int.rnet.of t.ings(Iot.in healt.care(HIot..Due t. more and more online securit. and dat. hijacking at.acks,t.e confident.alit.,int.grit. and availabilit. of dat. are considered serious issues in HIot.*** t.is regard,light.eight.block ciphers(LBCs)are promising in resourceconst.ained environment.where securit. is t.e primary *** prevalent.challenge while designing an LBC for t.e HIot.environment.is how t. ascert.in plat.orm performance,cost.and *** of t.e exist.ng LBCs primarily focus on t.xt.dat. or grayscale *** main focus of t.is paper is about.securing color images in a cost.effect.ve *** emphasis high confident.alit. of color images capt.red by cameras in resource-const.ained smart.hones,and high confident.alit. of sensit.ve images t.ansmit.ed by low-power sensors in Iot.*** order t. reduce comput.t.onal complexit. and simulat.on t.me,t.e proposed Light.eight.Symmet.ic Block Cipher(LSBC)exploit. chaos-based confusion-diffusion operat.ons at.t.e int.r-block level using a single *** st.engt. of LSBC is assessed by crypt.nalysis,while it.is ranked by comparing it.t. ot.er privacy-preserving *** result. show t.at.t.e proposed cipher produces promising result. in t.rms of key sensit.vit. and different.al at.acks,which proves t.at.our LSBC is a good candidat. for image securit. in HIot.

关键词： Iot healt.care light.eight.block cipher symmet.ic block cipher