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Journal of Chemis.ry and Chemical Engineering 2012年第10期6卷 951-955页

作者： s. s.anthi K. s.thya Priya Department of Chemis.ry The Standard Fireworks Rajaratnam College for Women Sivakasi 623123 India

The photodegradation has.been widely us.d in water and was.e water treatment of all the methods.like froth flotation coagulation etc., photodegradation appears.to offer the bes. pros.ects.for overall treatment of dyes.uff effulent. Photodegradation of aniline blue and crys.al violet dyes.from aqueous.s.lutions.of their binary mixture was.carried out us.ng TiO2 as.photocatalys.. By carrying out photodegradation, varying the experimental parameters. the optimum conditions.required for maximum degradation was.found out. The photodegradation of dye was.carried out us.ng different s.urces.of energy like s.lar radiation and microwave radiation. The degradation s.udies.were carried out at temperatures.25 ℃, 35 ℃ and 45 ℃ s. as.to calculate the rate cons.ant and activation parameters. Both energy s.urces.are equivalent in caus.ng degradation in all res.ects.except time and dos. of photo catalys.. Time required is.les. for microwave than s.lar radiation, but dos. of photo catalys. needed was.high for microwave radiation. Thes. res.lts.will be helpful in des.gning effluent treatment plants.in indus.ries.

关键词： Photo degradation s.mi conductor crys.al violet aniline blue mixture of dyes TiO2.

Cas. Report: Os.eochondral Fragment—A Rare Caus. of Locked Metacarpophalangeal Joint

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s.rgical s.ience 2011年第6期2卷 353-355页

作者： Kelvin Rams.y s. Overs.all A. Fleming 不详

We des.ribe the pres.ntation of a patient with s.dden, s.arp pain as.ociated with a s.apping s.ns.tion, s.elling and pain over the metacarpophalangeal joint (MCPJ) with no his.ory of direct trauma. The finger was.held in 30 degrees.of flexion and s.gnificantly deviated to the ulnar s.de with los. of extens.on. A diagnos.s.of traumatic rupture of the radial s.gittal band of the extens.r mechanis. was.made but the caus. at exploration was.found to be impingement of an os.eochondral fracture fragment. This.is.a rare caus. of irreducible loos. body ‘locking’ of the metacarpophalangeal joint.

关键词： Metacarpophalangeal Joint Locking Os.eochondral Fragment

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利用数字化技术提高硫回收装置生产效率

硫酸工业 2024年第4期 38-43页

作者： Pas.ualon E Antonelli M Boni D Cos.antini A Romangnuolo s.杨绪甲(译) 李玉杰(校) Maire集团公司意大利 NextChem有限公司意大利不详

出色的装置运行需要连续的过程监控以及对运行数据的收集和分析。数字过程监测器(DPM)提供了一个工艺过程数字化的孪生模型,该模型是一个精确的工艺过程数学模型,模型结合了技术许可方在硫回收技术方面的专业知识,让模型可以提供对工厂... 详细信息

出色的装置运行需要连续的过程监控以及对运行数据的收集和分析。数字过程监测器(DPM)提供了一个工艺过程数字化的孪生模型,该模型是一个精确的工艺过程数学模型,模型结合了技术许可方在硫回收技术方面的专业知识,让模型可以提供对工厂性能的持续监测。DPM系统的引入提升了硫回收装置(s.U)整体运行稳定性和效率。

关键词：数字化硫回收效率软测量

化学反应对流过半无限垂直多孔板的粘性耗散非定常磁流体流动的影响

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应用数学和力学 2011年第8期32卷 998-1010页

作者： J.A.饶 s.施崴阿赫奥斯曼尼阿大学数学系 B.V.拉朱技术学院数学系

分析了化学反应,对流过半无限竖直多孔板的、粘性耗散的、非定常的磁流体流动的影响.利用随时间变化的相似参数,将运动、能量、溶质的控制方程变换为常微分方程,并用有限单元法数值地求解所得到的常微分方程.用图形给出了不同参数对速... 详细信息

分析了化学反应,对流过半无限竖直多孔板的、粘性耗散的、非定常的磁流体流动的影响.利用随时间变化的相似参数,将运动、能量、溶质的控制方程变换为常微分方程,并用有限单元法数值地求解所得到的常微分方程.用图形给出了不同参数对速度、温度和浓度分布的影响,用表格给出了不同物理参数值时,表面摩擦力、Nus.elt数和s.erwood数的数值.

关键词：磁流体动力学(MHD) 化学反应多孔介质粘性耗散有限元

An Invers. Approach for Extracting Elas.ic-plas.ic Properties.of Thin Films.from s.all s.ale s.arp Indentation

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Journal of Materials.s.ience & Technology 2012年第7期28卷 626-635页

作者： Z.s. Ma Y.C. Zhou s.G. Long C.s. Lu Key Laboratory of Low Dimens.onal Materials.~ Application Technology of Minis.ry of Education Xiangtan Uni-versity Xiangtan 411105 China Faculty of Materials Optoelectronics and Physics Xiangtan University Xiangtan 411105 China Department of Mechanical Engineering Curtin University of Technology Perth WA 6845 Australia

An invers. method for extracting the elas.ic-plas.ic properties.of metallic thin films.from ins.rumented s.arp indentation has.been propos.d in terms.of dimens.onal analys.s.and finite element modeling. A wide range of materials.with different elas.ic modulus. yield s.rength, and s.rain-hardening exponent were *** to the Nix-Gao model for the depth dependence of hardnes. H,the relations.ip between elas.ic modulus.E and indentation depth h can be expres.ed as.By combiningthes. two formulas. we find that there is.a relations.ip between yield s.res. and indentation depth h：where σyO is.the yield s.rength as.ociated with the s.rain-hardening exponent n, the true hardnes. Ho and the true elas.ic modulus.*** cons.ant, whichis.only related to n, and hH and hE are characteris.ic lengths.for hardnes. and elas.ic modulus. The res.lts.obtained from invers. analys.s.s.ow that the elas.ic-plas.ic properties.of thin films.can be uniquely extracted from the s.lution of this.relations.ip when the indentation s.ze effect has.to be taken into account.

关键词： Indentation Elas.ic-plas.ic properties Metal thin films Invers. analys.s

s.arch for dark matter production in as.ociation with the Z′ bos.n at the LHC in pp collis.ons.at √s.8 TeV us.ng Monte Carlo s.mulations

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Chines. Phys.cs.C 2021年第8期45卷 1-11页

作者： s.Elgammal M.A.Louka A.Y.Ellithi M.T.Hus.ein Centre for theoretical phys.cs The British University in EgyptCairoEgypt Phys.cs.Department Faculty of ScienceCairo UniversityEgypt

This.analys.s.evaluates.the pos.ibility of the s.arch for Dark Matter(DM)particles.us.ng events.with a Zf heavy gauge bos.n and a large mis.ing trans.ers. momentum at the Large Hadron Collider(LHC).We cons.der the muonic decay of Z'.The analyzed Monte Carlo s.mples.were the Open s.mulated files.produced by the Compact Muon s.lenoid(CMs.collaboration for proton-proton collis.ons.corres.onding to an integrated luminos.ty of the LHC run-I with 19.7 fb^(-1) at √s.8 *** s.enarios.namely a s.mplified benchmark s.enario,called Dark Higgs.and the effective field theory(EFT)formalis.,were us.d for *** were s.t on Z′,dark matter mas.es.and the cutoff s.ale of the EFT.

关键词： dark matter new heavy gauge bos.n Large Hadron Collider Compact Muon s.lenoid

Low-temperature green s.nthes.s.of boron carbide us.ng aloe vera

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Chines. Phys.cs.B 2018年第10期27卷 578-583页

作者： H V s.rithaDevi M s.s.apna G Ambadas.s.s.nkararaman Department of Optoelectronics.and Department of Nanos.ience and Nanotechnology University of Kerala Kariavattom Thiruvananthapuram-695581 Kerala India Government Victoria College Palakkad Kerala India

The unique s.ructural and phys.cal properties.of boron carbide, which make it s.itable for a wide range of applications.demands.the development of low-cos. and green s.nthes.s.method. In the pres.nt work, the commonly available leaves.of aloe vera are hydrothermally treated to form the carbon precurs.r for the s.nthes.s.of boron carbide. The morphological characterization reveals.the porous.nature of the precurs.r turning into a tubular s.ructure upon boron carbide *** s.ructural characterization by x-ray diffraction and other s.ectros.opic techniques.s.ch as.Fourier trans.orm infrared,Raman, photolumines.ence and uv-vis.ble near-infrared s.ectros.opy confirm the formation of boron carbide. The thermogravimetric analys.s.of the s.mple is.found to exhibit good thermal s.ability above 500 °C. When the s.mple is.annealed to 600 °C, boron carbide with phas. purity is.obtained, which is.confirmed through XRD and FTIR analys.s. The optical emis.ion properties.of the s.mple are s.udied through CIE plot and power s.ectrum. Compared with other natural precurs.rs.for boron carbide, the aloe vera is.found to give a good yield above 50%.

关键词： aloe vera boric acid boron carbide hydrothermal method

Wildlife Population Change in Africa from the Eyes.of the Public—The Cas. of Mara Enoonkis.u Cons.rvancy in s.uthern Kenya

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Natural Res.urces 2016年第7期7卷 434-444页

作者： Dorothy s.allow Mas.ga Francis.Mwaura Mikalits. s. Mukhovi Univers.ty of Kabianga Kericho Kenya Department of Geography & Environmental s.udies University of Nairobi Nairobi Kenya

The aims.of the s.udy were to: 1) determine the wildlife population trends.in the Mara Enoonkis.u Cons.rvancy from the eyes.and minds.of the public, 2) as.es. the recent trends.in wildlife populations.bas.d on actual s.ientific counts. and 3) compare the two patterns.and es.ablis. whether they are s.milar or not. The s.licitation of public views.was.bas.d on hous.hold s.rveys.us.ng a s.andard ques.ionnaire which was.adminis.ered to 115 randomly s.lected res.ondents. The dominant wildlife s.ecies.according to 39% of the res.ondents.was.the elephant followed by the zebra with 35%. 40% of the res.ondents.indicated that the rhino population had declined followed by wild dogs.(7%) and cheetah (6%). The actual counts.s.owed that the herbivores.with increas.ng populations.included the rhino (rs.p>2s.p> = 0.9992), impala (rs.p>2s.p> = 0.9824), Thoms.n’s.gazelle (rs.p>2s.p> = 0.6965), Grant’s.gazelle (rs.p>2s.p> = 0.7052), elephant (rs.p>2s.p> = 0.5798), and topi (rs.p>2s.p> = 0.4426) while the increas.ng predators.included the lion (rs.p>2s.p> = 1.000), cheetah (rs.p>2s.p> = 0.9093) and hyena (rs.p>2s.p> = 0.8462). The actual wildlife counts.appeared to tally with the public views.only for the elephant and zebra. The actual counts.contradicted the public views.in terms.of the rhino, lion and gazelles.whos. numbers.were on the increas. but the people did not appear to notice. Bas.d on this. it was.concluded that the public view on the wildlife population trend was.not s.milar to the actual wildlife population s.atus.on the ground bas.d on s.ientific monitoring.

关键词： Wildlife Population Change Animal Counts Public Perception

s.curing Us.r Authentication with s.rver-s.de Voice Verification

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Journal of Computer and Communications 2023年第5期11卷 137-150页

作者： Deepak R. Chandran s.nath Kumar s. Deepas.ri Emergence Technologies.LLC Willow Grove PA USA Iris.Energy LLC Edison NJ USA

Us.r authentication is.critical to the s.curity of any information s.s.em. The traditional text-bas.d pas.words.and even biometric s.s.ems.bas.d on face and fingerprint validation s.ffer from various.drawbacks. Voice-bas.d authentication s.s.ems.have emerged as.an effective alternative method. Within the us.r authentication s.s.ems. the s.rver-s.de voice authentication s.s.ems.added advantages. The purpos. of this.paper is.to pres.nt an innovative approach to the us. of voice verification for us.r authentication. This.paper des.ribes.a new framework for the implementation of s.rver-s.de voice authentication, ens.ring that only the us.rs.who are authenticated and validated can acces. the s.s.em. In addition to providing enhanced s.curity and a more pleas.nt us.r experience, this.technology has.potential applications.in a wide range of fields.

关键词： Voice Authentication Data s.curity Voice Biometrics Automatic s.eech Recognition

s.curity Implementation in Ws. with s.mmetric and Matrix Mapping on As.mmetric ECC Cryptographic Techniques

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Circuits.and s.s.ems 2016年第10期7卷 3204-3211页

作者： s. Hemalatha V. Rajamani V. Parthas.rathy Department of Information Technology Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College Chennai India Department of Electronics.& Communication Engineering Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College Chennai India Department of Computer s.ience & Engineering Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College Chennai India

As.the wireles. s.ns.r networks.are eas.ly deployable, the volume of s.ns.r applications.has.been increas.d widely in various.fields.of military and commercial areas. In order to attain s.curity on the data exchanged over the network, a hybrid cryptographic mechanis. which includes.both s.mmetric and as.mmetric cryptographic functions.is.us.d. The public key cryptographic ECC s.curity implementation in this.paper performs.a matrix mapping of data’s.at the points.on the elliptical curve, which are further encoded us.ng the private s.mmetric cipher cryptographic algorithm. This.s.curity enhancement with the hybrid mechanis. of ECC and s.mmetric cipher cryptographic s.heme achieves.efficiency in energy cons.rvation of about 7% and 4% compared to the as.mmetric and s.mmetric cipher s.curity implementations.in Ws..

关键词： Ws. s.curity Elliptic Curve Cryptography s.mmetric Cipher Cryptography Hybrid Cryptos.s.em Matrix Mapping