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Intercept-resend attack on six-state quantum key distribution over collective-rotation noise channels

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Chinese Physics B 2016年第7期25卷 131-137页

作者： kevin Garapo Mhlambululi Mafu Francesco Petruccione Centre for Quantum Technology School of Chemistry and PhysicsUniversity of KwaZulu-Natal P/Bag X54001 Durban 4000 South Africa Department of Physics and Astronomy Botswana International University of Science and Technology P/Bag 16 Palapye Botswana National Institute for Theoretical Physics (NITheP) KwaZulu-Natal South Africa

We investigate the effect of collective-rotation noise on the security of the six-state quantum key distribution. We study the case where the eavesdropper, Eve, performs an intercept-resend attack on the quantum communication between Alice, the sender, and Bob, the receiver. We first derive the collective-rotation noise model for the six-state protocol and then parameterize the mutual information between Alice and Eve. We then derive quantum bit error rate for three interceptresend attack scenarios. We observe that the six-state protocol is robust against intercept-resend attacks on collective rotation noise channels when the rotation angle is kept within certain bounds.

关键词： six states quantum key distribution security collective-rotation noise

Earthworm community development in soils of a reclaimed steelworks

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Pedosphere 2021年第3期31卷 384-390页

作者： kevin RBUTT Siobhan MQUIGG University of Central Lancashire School of Forensic and Applied SciencesPreston PR12HEUK

Long-term studies are essential to learn earthworm community development and soil formation post *** were undertaken at a former steelworks site at Hallside,near Glasgow,UK,reclaimed in the 1990s using a mixture of colliery spoil and sewage *** site was largely planted for production of short rotation coppice willow(Salix spp.).Earthworm inoculation formed a part of the restoration *** monitoring occurred in the interim,but some records of earthworm sampling existed in 2000 and *** study focused on monitoring earthworms and soil properties across the site,drawing comparisons with adjacent unspoiled *** showed that after 22 years,a species-rich community of earthworms(n=16)colonized the site,with endogeic Aporrectodea caliginosa being dominant by number and anecic *** by *** the site,earthworm community density and biomass were 208 individuals m^(-2) and 71 g m^(-2),*** Shannon diversity index for earthworms was 1.89,with an evenness of *** sewage sludge increased the soil organic matter,but the stone content of the colliery spoil prevented digging in some *** chemistry had no negative effect on earthworms,but the compacted substrate did hinder water *** colonized the reclaimed site from adjacent areas,and community structure and density below well-drained,scrub-free willow,birch,and grassland were not significantly different(P>0.05)from those of the adjacent unspoiled *** results show that the historical earthworm inoculation was unnecessary and badly *** reclamations of similar sites can learn from this investigation.

关键词： colliery spoil colonization inoculation land reclamation pedogenesis rehabilitation sewage sludge willow

Neuron-to-astrocyte proteostatic stress signaling in response to tau pathology

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Neural Regeneration Research 2024年第3期19卷 505-506页

作者： kevin Llewelyn Batenburg Wiep Scheper Amsterdam UMC location Vrije Universiteit Amsterdam Department of Human GeneticsAmsterdam Neuroscience-NeurodegenerationAmsterdamThe Netherlands Department of Functional Genomics Center for Neurogenomics and Cognitive ResearchVrije Universiteit AmsterdamAmsterdam Neuroscience-NeurodegenerationAmsterdamThe Netherlands

Maintenance of protein homeostasis or“proteostasis”is essential for the functioning and viability of *** is in particular the case for cells like neurons that cannot self-renew and acquire unique functional properties during their *** proteostatic stress responses are in place to protect cells from damage in case of proteostatic *** integrated stress response(ISR)is one of the key proteostatic stress responses in the cell(Costa-Mattioli and Walter,2020).The ISR is the downstream convergence point for the four stress-induced eIF2αkinases(EIF2AK1-4)that control stress-regulated protein translation via phosphorylation of the translation factor eIF2α.ISR activation results in a transient reduction of global translation while it concomitantly enhances the translation of specific mRNAs,including that encoding the activating transcription factor 4(ATF4).Together,the translational control mediated by the ISR results in a temporary reduction of the overall protein load and the selectively increased expression of proteins that contribute to restoration of the proteostatic balance.

关键词： translation stress Together

Empirical Estimates of Global Climate Sensitivity:An Assessment of Strategies Using a Coupled GCM

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Advances in Atmospheric Sciences 2008年第3期25卷 339-347页

作者：朱伟军 kevin HAMILTON KLME Nanjing University of Information Science & Technology International Pacific Research Center University of Hawaii at ManoaHonolulu 96822USA

A control integration with the normal solar constant and one with it increased by 2.5% in the National Center for Atmospheric Research （NCAR） coupled atmosphere-ocean Climate System Model were conducted to see how well the actual realized global warming could be predicted just by analysis of the control results. This is a test, within a model context, of proposals that have been advanced to use knowledge of the present day climate to make ＂empirical＂ estimates of global climate sensitivity. The scaling of the top-of-the-atmosphere infrared flux and the planetary albedo as functions of surface temperature was inferred by examining four different temporal and geographical variations of the control simulations. Each of these inferences greatly overestimates the climate sensitivity of the model, largely because of the behavior of the cloud albedo. In each inference the control results suggest that cloudiness and albedo decrease with increasing surface temperature. However, the experiment with the increased solar constant actually has higher albedo and more cloudiness at most latitudes. The increased albedo is a strong negative feedback, and this helps account for the rather weak sensitivity of the climate in the NCAR model. To the extent that these model results apply to the real world, they suggest empirical evaluation of the scaling of global-mean radiative properties with surface temperature in the present day climate provides little useful guidance for estimates of the actual climate sensitivity to global changes.

关键词： climate sensitivity empirical estimates coupled GCM surface temperature

Tensionless contact of a finite beam:Concentrated load inside and outside the contact zone

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Acta Mechanica Sinica 2013年第6期29卷 836-839页

作者： Yin Zhang kevin D.Murphy State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of Sciences Department of Mechanical Engineering University of ConnecticutStorrsCT 06268USA

For a finite beam with a nonzero gap distance, an asymmetric concentrated load can be either inside or outside of the contact zone. A new governing equation is given for the case of a concentrated load outside the contact zone. By numerically solving the left-side and right-side contact lengths of the beam, a criterion is established to determine whether the concentrated load is inside or outside the contact zone. A more general approach on the tensionless contact of a beam is thus presented.

关键词： Tensionless contact Lift-off Beam

Population Shrinkage in Resource-dependent Cities in China: Processes, Patterns and Drivers

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Chinese Geographical Science 2020年第1期30卷 1-15页

作者： LI He kevin LO ZHANG Pingyu Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun 130102China Department of Geography Hong Kong Baptist UniversityKowloon Tong999077Hong KongChina College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

Resource-dependent cities(RCs)are a vulnerable group of urban settlements that often face population shrinkage;however,population changes in RCs in China are not well *** study offers new insight into this matter through a robust analysis that features a longer time scale,a larger sample of RCs,and a finer unit of *** finds new evidence that problems of population shrinkage in RCs are more serious than previous literature has *** 30%of the studied units have experienced either long-term or short-term population shrinkage,and many more are experiencing a slowing down of population *** are especially common among three types of RCs:the resource-depleted RCs,the forestry-based RCs,and RCs in Northeast *** results underscore transition policy inadequacies in addressing population loss,and call for a more comprehensive and diversified population policy that tackles the multifaceted factors that contribute to population shrinkage,including lack of industrial support,maladjustment to market oriented reformation,poor urban environment and natural population decline.

关键词： resource-dependent cities urban shrinkage population change urbanization,China

Ewings family oncoproteins: drunk,disorderly and in search of partners

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Cell Research 2007年第4期17卷 286-288页

作者： kevin A W Lee Kowloon SAR China Department of Biology Hong Kong University of Science and Technology

Aberrant chromosomal translocations involving the Ew-ings sarcoma(EWS)oncogene produce the EWS-fusion-protein family(EFPs,Figure 1A)that causes a wide varietyof human cancers[1].Extensive analysis of chromosomalbreakpoints[2]has long established that,generally,EFPscontain at least the N-terminal 264 residues of EWS [theEWS-activation-domain(EAD)].The C-terminal fusionpartner is a cellular transcription factor that contributes,minimally,a sequence-specific DNA-binding domainwhich determines the tumor ***,EFPs arepotent transcriptional activators but also interact with otherproteins involved in different aspects of mRNA biogenesis,indicating that EFPs induce tumorigenesis by perturbinggene *** many reasons the mechanism of EAD action hasremained quite *** major barrier to progressis presented by the primary structure of the EAD(Figure1B)comprising～250 residues and(almost exclusively)30copies of a degenerate hexapeptide repeat(DHR,consensusSYGQQS)with the Tyr being absolutely and the first Glnbeing strongly conserved(Figure 1B).Because the intact

关键词： EAD EWS drunk,disorderly and in search of partners Ewings family oncoproteins

NOTES ON “MULTICRITERIA FUZZY DECISION-MAKING METHOD BASED ON A NOVEL ACCURACY FUNCTION UNDER INTERVAL-VALUED INTUITIONISTIC FUZZY ENVIRONMENT”

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Journal of Systems Science and Systems Engineering 2010年第4期19卷 504-508页

作者： kevin W. LI Zhoujing WANG Odette School of Business University of Windsor Windsor Ontario N9B 3P4 Canada School of Computer Science and Engineering Beihang University Beijing 100083 China Department of Automation Xiamen University Xiamen Fujian 361005 China

This note points outs the inappropriateness of an accuracy function introduced by Ye [Ye, J. （2009）. Multicriteria fuzzy decision-making method based on a novel accuracy function under interval-valued intuitionistic fuzzy environment. Expert Systems with Applications, 36 （3）： 6899-6902] and its misleading use for comparing two interval-valued intuitionistic fuzzy numbers.

关键词： Interval-valued intuitionistic fuzzy set accuracy function score function multicriteria decision-making

Development and evaluation of corrosion resistant coating for expandable rock bolt against highly corrosive ground conditions

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International Journal of Mining Science and Technology 2018年第1期28卷 145-151页

作者： kevin Jinrong Ma John Stankus Dakota Faulkner Keystone Mining Services LLC of Jennmar Corporation Inc

Expandable rock bolts are widely used in hard rock mines as an efficient ground control ***, capacity and service life can be significantly reduced if the metallic body is subjected to *** some hard rock mines in the U.S., highly corrosive ground conditions exist, and it has been reported that inflatable rock bolts have corroded within a few months after *** provide mining industry a cost-effective inflatable bolt and combat the corrosion issues, Jennmar Corporation, Inc.,and its subsidiary Keystone Mining Services, LLC(KMS), analyzed corroded bolt samples, identified root causes, evaluated properties of various coating materials, and developed a new inflatable rock bolt,Python M3^(TM), that is protected with an innovative PyFlexU2^(TM)*** new generation Python M3^(TM) features improved steel chemistry for reliable performance, modified profile for better inflation, and surface preparation and coating *** PyFlexU2^(TM)is impervious to liquid and air, durable, and UV *** a flexible, adhesive, and highly corrosion-resistant undercoating, and a very hard sacrificial surface coating, the PyFlexU2^(TM)coating system provides the Python M3^(TM)superior protection against chemical corrosion and physical scratch *** under-coating has exceptional flexibility and adhesion to prevent coating micro-cracks or fractures after bolt inflation and possesses excellent corrosion resistance to acids(pH 11), fuels, and salt *** corrosion and scratch resistant PyFlexU2^(TM)coating offers very effective bolt protection for extra longevity in highly corrosive *** Python M3^(TM)coated with PyFlexU2^(TM)has been tested in the most challenging conditions,including laboratory corrosion tests in extreme acidic and basic solvents, rock slurry, and borehole scratch insertion *** demonstrated corrosion and scratch resistance, the product has been greatly welcomed by hard rock min

关键词： Rock bolt Hard rock Corrosive ground condition Bolt corrosion