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Adaptive Route Sink Relocation Using Cluster Head Chain Cycling model in WSN

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Intelligent Automation & Soft Computing 2023年第5期36卷 1811-1826页

作者： m.Sudha P.Shanmugapriya Rami q.m.lik Ahmed Alkhayyat Department of Electronics and Communication Engineering Paavai Engineering CollegeNamakkal637018India Department of Electronics and Communication Engineering Saranathan College of EngineeringTiruchirappalli620012India Department of medical Instrumentation Techniques Engineering Al-Mustaqbal University CollegeHillah51001Iraq College of Technical Engineering The Islamic UniversityNajafIraq

Wireless Sensor Networks(WSN)have revolutionized the processes involved in industrial ***,the most important challenge faced by WSN sensors is the presence of limited *** research inves-tigations have been conducted so far on how to prolong the energy in *** phenomenon is a result of inability of the network to have battery powered-sensor ***-efﬁcient routing on packetﬂow is a parallel phenomenon to delay nature,whereas the primary energy gets wasted as a result of WSN *** holes are present in the vicinity of sink and it is an important efﬁcient-routing protocol for *** order to solve the issues discussed above,an energy-efﬁcient routing protocol is proposed in this study named as Adaptive Route Decision Sink Relocation Protocol using Cluster Head Chain Cycling approach(ARDSR-CHC2H).The proposed method aims at improved communica-tion at sink-inviting *** this point,Cluster Head Node(CHN)is selected,since it consumes low energy and permits one node to communicate with others in two *** main purpose of the proposed model is to reduce energy con-sumption and deﬁne new interchange technology.A comparison of simulation results demonstrates that the proposed algorithm achieved low cluster creation time,better network error and high Packet Delivery Rate with less network failure.

关键词： Cluster head energy-efﬁcient routing chain routing cycling approach sink relocation adaptive routing WSN

INFLUENCES OF NEODYmIUm ON mAGNETIC CHARACTERISTICS OF ELECTROPLATING CoNdNimnP FILmS

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Acta metallurgica Sinica(English Letters) 2005年第2期18卷 149-152页

作者： H.C.Jiang W.L.Zhang J.P.Zhang W.X.Zhang B.peng S.q.Yang SchoolofmicroelectronicsandSolidElectronics UniversityofElectronicScienceandTechnologyofChinaChengdu610054China

In order to improve the performances of electroplating permanent magnetic films, neodymium is introduced into the electroplating CoNimnP permanent magnetic films. The influences of the neodymium content are also investigated by varying NdCl3 plating bath concentration. The neodymium-doped films are analyzed by energy dispersive spectrum (EDS), vibrating sample magnetometer (VSm) and magnetic force microscope (mFm). The experimental results show that high magnetic performances of CoNdNimnP permanent magnetic films with vertical anisotropy could be fabricated with current density 5mA/cm2 at room temperature. With the increasing of neodymium contents, the magnetic properties of films were improved. However when neodymium contents exceeded 3.5wt%, the magnetic properties of films are not improved any more. The increase of film magnetic properties results from the ferromagnetic-coupling between light rare earth element-neodymium and transition metal element-cobalt.

关键词： CoNdNimnP permanent magnetic film magnetic property electroplating vertical anisotropy

First-principles Investigation of Bi Segregation at the Solder Interface of Cu/Cu_3Sn(010)

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Journal of materials Science & Technology 2010年第12期26卷 1057-1062页

作者： X.Y. Pang Z.q. Liu S.q. Wang J.K. Shang Shenyang National Laboratory for materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Department of materials Science and Engineering University of Illinois at Urbana-Champaign IL 61801 USA

Density functional theory was employed to investigate the bismuth segregation at Cu/Cu3Sn（010） interface. Five initial constructions were introduced by adopting the adhesion energy criterion. Among them, the so-called ＂between-Cu＂ construction in which the interface Cu atoms of Cu slab locate along Cu-Cu bond direction in Cu3Sn slab was found to be the most energy-favored at an adhesion energy of 1.96 J/m^2. Based on this construction, five possible segregation sites were examined, and the most likely segregation site was determined with adhesion energy as low as 1.06 J/m^2, which was almost half of the initial one. Comparing with other sitest adhesion energies, it was concluded that size effect took a large part in embrittlement. The analyses of atomic structure and electronic density revealed that the slabs shifted away from interfaces due to bismuth segregation, and the atoms around Bi atom were Dressed away. This calculated work agreed aualitativelv with reported experimental results.

关键词： First-principles calculation Segregation Bismuth Interface SnBi solder

Fluorescence lifetime imaging for studying DNA compaction and gene activities

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Light(Science & Applications) 2021年第12期10卷 2349-2359页

作者： Svitlana m.Levchenko Artem Pliss Xiao peng Paras N.Prasad Junle qu Key Laboratory of Optoelectronic Devices and Systems of ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhenGuangdong 518060China Department of Cell Biophysics Faculty of BiochemistryBiophysics and BiotechnologyJagiellonian University30-387 KrakowPoland Institute for Lasers Photonics and BiophotonicsUniversity at BuffaloState University of New YorkBuffaloNY 14260-3000USA

Optical imaging is a most useful and widespread technique for the investigation of the structure and function of the cellular ***,an analysis of immensely convoluted and irregularly compacted DNA polymer is highly challenging even by modern super-resolution microscopy *** we propose fluorescence lifetime imaging(FLIm)for the advancement of studies of genomic structure including DNA compaction,replication as well as monitoring of gene *** proposed FLIm assay employs two independent mechanisms for DNA compaction *** mechanism relies on the inverse quadratic relation between the fluorescence lifetimes of fluorescence probes incorporated into DNA and their local refractive index,variable due to DNA compaction *** mechanism is based on the Förster resonance energy transfer(FRET)process between the donor and the acceptor fluorophores,both incorporated into *** these proposed mechanisms were validated in cultured *** obtained data unravel a significant difference in compaction of the gene-rich and gene-poor pools of genomic *** show that the gene-rich DNA is loosely compacted compared to the dense DNA domains devoid of active genes.

关键词： expression. lifetime donor

ON THE RELATIONSHIP BETWEEN THE EmBEDDED-ATOmmETHOD FUNCTION OF TITANIUm AND TEmPERATURE

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Acta metallurgica Sinica(English Letters) 1999年第2期12卷 143-148页

作者： Shen, C. Zhang, H.T. Lu, m. Bai, X.m. Zhang, q.J. Fudan Univ Shanghai China

Temperature-dependent Embedded-Atom-method (EAm) functions of hcp titanium have been determined by fitting to the lattice constants and elastic constants, measured at various temperatures as well as by considering the universal Rose's relation. The EAm functions thus obtained satisfy the stable structure requirement and Cauchy discrepancy. The results show that the EAm functions do have temperature-dependence, and in the meanwhile it also provides EAm functions of titanium for the study of Ti-based metallic materials at various temperatures. (Author abstract) 16 Refs.

关键词： Computer simulation Crystal atomic structure Elastic moduli Free energy metallic matrix composites Thermal effects

A Novel Through-the-Wall Imaging Algorithm Combined with Phase Shift migration and NUFFT

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Chinese Journal of Electronics 2017年第5期26卷 1096-1100页

作者： ZHANG peng FEI peng WEN Xin NIAN Feng Institute of Radio metrology and measurement

This paper proposes a novel Through wall imaging(TWI) algorithm combined with phase compensation and Nonuniform fast Fourier transform(NUFFT).The wall effect is cancelled with phase compensation,which is implemented by multiplying the conjugated wall transmissivity with the received *** NUFFT technique is implemented to calculate the imaging *** proposed method has two merits:The phase compensation avoids a time-consuming calculation of the incidences angles;the image is reconstructed more accurately and efficiently than the conventional Interpolation-fast Fourier transform(IPFFT) *** new method is implemented on 2D synthetic-generated data and experimental *** results demonstrate that our method generates high quality focused images and achieves target geometrical identification within a very short time.

关键词： Phase shift migration(PSm) Nonuniform Fourier transform(NUFFT) Through-the-wall imaging(TWI)

Preferential attachment network model with aging and initial attractiveness

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Communications in Theoretical Physics 2022年第3期74卷 97-103页

作者： Xiao-Long peng Complex Systems Research Center Shanxi UniversityTaiyuan 030006ShanxiChina Shanxi Center for Applied mathematics Shanxi UniversityTaiyuan 030006ShanxiChina Shanxi Key Laboratory of mathematical Techniques and Big Data Analysis on Disease Control and Prevention Shanxi UniversityTaiyuan 030006ShanxiChina

In this paper,we generalize the growing network model with preferential attachment for new links to simultaneously include aging and initial attractiveness of *** network evolves with the addition of a new node per unit time,and each new node has m new links that with probability Π_(i) are connected to nodes i already present in the *** our model,the preferential attachment probability Π_(i) is proportional not only to k_(i)+A,the sum of the old node i's degree ki and its initial attractiveness A,but also to the aging factor τ_(i)^(−α),whereτi is the age of the old node *** is,Π_(i)∝(k_(i)+A)τ_(i)^(−α).Based on the continuum approximation,we present a mean-field analysis that predicts the degree dynamics of the network *** show that depending on the aging parameter α two different network topologies can *** αmeter α and is linearly correlated with the ratio A/***,the average degree k(ti,t)at time t for any node i that is added into the network at time ti scales as k(t_(i),t)∝t_(i)^(−β) where 1/β is a linear function of A/*** α>1,such scaling behavior disappears and the degree distribution is exponential.

关键词： complex network model aging preferential attachment power-law behavior

Generating a CRISPR knockout mouse through a strong premature termination codon:a cautionary tale

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The Journal of Biomedical Research 2021年第2期35卷 174-178,1-4页

作者： qing Rex Lyu peng Yao Joseph m miano Aab Cardiovascular Research Institute University of Rochester School of Medicine & Dentistry Rochester NY 14642 USA. Vascular Biology Center Medical College of Georgia at Augusta University Augusta GA 30912 USA. Institute of Biomedicine and Health Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 China.

Dear Editor,Genetic inactivation or gene knockout(KO)has been a powerful method of elucidating gene function in *** traditional method of generating KO mice via targeting mouse embryonic stem cells through homologous ... 详细信息

关键词： knockout inactivation termination

Heavy fermions in high magnetic fields

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Chinese Physics B 2019年第1期28卷 25-38页

作者： m Smidman B Shen C Y Guo L Jiao X Lu H q Yuan Center for Correlated matter and Department of Physics Zhejiang UniversityHangzhou 310058China Collaborative Innovation Center of Advanced microstructures Nanjing UniversityNanjing 210093China

Heavy fermion materials are prototypical strongly correlated electron systems, where the strong electron–electron interactions lead to a wide range of novel phenomena and emergent phases of matter. Due to the low energy scales, the relative strengths of the Ruderman–Kittel–Kasuya–Yosida(RKKY) and Kondo interactions can often be readily tuned by non-thermal control parameters such as pressure, doping, or applied magnetic fields, which can give rise to quantum criticality and unconventional superconductivity. Here we provide a brief overview of research into heavy fermion materials in high magnetic fields, focussing on three main areas. Firstly we review the use of magnetic fields as a tuning parameter,and in particular the ability to realize different varieties of quantum critical behaviors. We then discuss the properties of heavy fermion superconductors in magnetic fields, where experiments in applied fields can reveal the nature of the order parameter, and induce new novel phenomena. Finally we report recent studies of topological Kondo systems, including topological Kondo insulators and Kondo–Weyl semimetals. Here experiments in magnetic fields can be used to probe the topologically non-trivial Fermi surface, as well as related field-induced phenomena such as the chiral anomaly and topological Hall effect.

关键词： heavy fermions high magnetic fields quantum phase transitions heavy fermion superconductivity topological Kondo systems