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The Bisq decentralised exchange: on the privacy cost of participation

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Blockchain(Research and Applications) 2022年第1期3卷 13-22页

作者： Liam hickey Martin Harrigan Institute of Technology CarlowR93 V960Ireland

The Bisq Trade Protocol and the Bisq DAO(decentralised autonomous organisation)are core components of Bisq,a decentralised cryptocurrency *** Bisq Trade Protocol systematises the peer-to-peer trading of Bitcoin for other currencies and the Bisq DAO decentralises the governance and finance functions of the entire ***,by following the Bisq Trade Protocol and interacting with the Bisq DAO,participants necessarily publish data to the Bitcoin blockchain and broadcast additional data to the Bisq peer-to-peer *** examine the privacy cost to participants in sharing this ***,we use novel address clustering heuristics to construct the one-to-many mappings from participants to addresses on the Bitcoin blockchain and augment the address clusters with data stored within the Bisq peer-to-peer *** describe address clustering heuristics for both the Bisq Trade Protocol and the Bisq *** show that the heuristics aggregate activity performed by each participant:trading,voting,transfers,*** identify instances where participants are operating under multiple aliases,some of which are real-world *** identify the dominant transactors and their role in a two-sided *** conclude with suggestions to better protect the privacy of participants in the future.

关键词： Decentralised exchange Blockchain analysis Decentralised governance Cryptocurrency Privacy

Soral Crypsis:Protective Mimicry of a Coccid on an Indian Fern

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Journal of Integrative Plant Biology 2008年第6期50卷 653-658页

作者： Biplab Patra Subir Bera R. James hickey Department of Botany Ananda Mohan College 102/1 Raja Rammohan Sarani Department of Botany University of Calcutta 35 Ballygunge Circular Road Kolkata 700019 India Department of Botany University of Calcutta 35 Ballygunge Circular Road Department of Botany Miami University Oxford

Herbivory with crypsis is not well documented in ferns. The present record of cryptic coloration of coccid Saissetia filicum Boisduval （Homoptera： Coccidae） to the sori of a fern species Asplenium nidus L. （Aspleniaceae） is unique. Predatory beetles （Jauravia sp., Coleoptera： Coccinellidae） that feed on the coccids, are suggested to be selective pressure for the development of the present homopteran soral crypsis. A higher rate of effective predation is noticed in the vegetative leaves than the fertile leaves. Aggressive ants were found harvesting honeydew secretions from the coccids and defending the trophobionts as well as the host fern from their natural enemies. In addition, a possible three-way mutualistic relationship among the coccids, its host fern and the tending ant is suggested. Differential numbers of coccids on vegetative and fertile leaves is correlated with their phenol content and degree of predation by beetles. Such coloration mimicry by the coccids may enable them to obtain the necessary blend of sorus of the host fern needed to evade beetle detection and attack.

关键词： Asplenium nidus coccid coloration mimicry India insect-fern interactions predatory beetle soral crypsis trophobiont.

A Lognormal Distribution of Metal Resources

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地球科学（中国地质大学学报） 2011年第2期36卷 201-208页

作者： donald A. Singer U.S. Geological Survey 345 Middlefield Road Menlo Park California 94025 USA

For national or global resource estimation of frequencies of metals,a lognormal distribution has commonly been recommended but not adequately *** of frequencies of Cu,Zn,Pb,Ag,and Au contents of 1 984 well-explored mineral deposits display a poor fit to the lognormal *** the same metals plus Mo,Co,Nb2O3,and REE2O3 are grouped into 19 geologically defined deposit types,only eight of the 73 tests fail to be fit by lognormal distribution,and most of those failures are in two deposit types suggesting a problem with those *** of the mean and standard deviation of each of the metals in each of the deposit types are provided for modeling.

关键词：地质矿石矿产资源地球科学

Energy Balance and Body Weight Regulation

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中国运动医学杂志 2006年第5期25卷 608-615页

作者： Chris Melby Matt hickey Dept .of Food Science and Human Nutrition Nutrition and Metabolic Fitness LaboratoryColorado State University Fort Collins CODr .P.H. Human Performance/Clinical Research Lab Department ofHealth and Exercise ScienceColorado State University Fort Collins COPh.D.

Thermodynamic laws dictate that an excess of food energy intake relative to energy expenditure will lead to energy storage-an accumulation of fat. Conversely, a deficit of energy intake relative to expenditure will le... 详细信息

关键词： body than

Harnessing genetic variation at regulatory regions to fine-tune traits for climate-resilient crops

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Molecular Plant 2022年第2期15卷 222-224页

作者： Diep R.Ganguly Lee T.hickey Peter A.Crisp Australian Research Council Centre of Excellence in Plant Energy Biology Research School of BiologyThe Australian National UniversityActonCanberraACT 2601Australia CSIRO Synthetic Biology Future Science Platform CanberraACTAustralia Queensland Alliance for Agriculture and Food Innovation The University of QueenslandBrisbaneQLD 4072Australia School of Agriculture and Food Sciences The University of QueenslandBrisbaneQLD 4072Australia

Climate change is making it more challenging to meet the food demands of a growing global *** food produc-tion relies on continual crop improvements to generate higher and more stable yields,especially with increasingly unpredictable environments and less arable *** improvement of traits that promote climate resilience and resource utilization,for example,greater photosynthetic capacity,increased nitrogen use efficiency,and optimized root and shoot architecture,repre-sents a promising avenue for engineering crops to yield more with less(Evans and Lawson,2020).A key challenge for crop engineering is optimizing performance in specific environments.

关键词： crops traits environments

How Deep Learning Networks could be Designed to Locate Mineral Deposits

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Journal of Earth Science 2021年第2期32卷 288-292页

作者： donald A.Singer 10191 N.Blaney Ave. Cupertino 95014CA USA

Whether using a shallow neural network with one hidden layer,or a deep network with many hidden layers,the training data must represent subgroups of the deposit type being explored to be *** examples of neural networks have mostly been limited to one individual mineral deposit for *** of geologic features among deposits within a type are so large that a single deposit cannot provide proper information to train a neural net to generalize and guide exploration for other *** trained with only one deposit tend to be academic successes but are not of practical value in exploration for other *** is why it takes much experience examining many deposits to properly train an economic geologist—a neural network is not any *** examples of shallow neural networks are used to demonstrate the power of neural networks to possibly locate undiscovered deposits and to provide some suggestions of how to deal with missing *** training data needs to include information spatially related to known deposits and hopefully information from many different deposits of the *** learned from these and other examples point to a proposed sampling plan for data that could lead to a generalized neural network for *** this plan,10 or more well-explored gold-rich porphyry copper deposits from around the world with 100 or more sample sites near and some distance from each deposit would probably capture important variability among such deposits and provide proper data to train and test a shallow neural network to predict locations of undiscovered deposits.

关键词： porphyry copper training neural networks missing observations

Lateral distributions of streamwise velocity in compound channels with partially vegetated floodplains

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Science China(Technological Sciences) 2009年第11期52卷 3357-3362页

作者： KNIGHT donald W School of Civil Engineering The University of Birmingham Birmingham B15 2TT UK

Natural rivers are commonly characterized by a main channel for primary flow conveyance and a floodplain, often partially covered with vegetation such as shrubs or trees, to carry extra flow during floods. The hydraulic resistance due to vegetation on the floodplain typically causes a further reduction of flow velocity and increases the velocity difference between the main channel and the floodplain. As a consequence a strong lateral shear layer leads to the exchange of mass and momentum between the main channel and floodplain, which in turn affects the overall channel conveyance and certain fluvial processes. The prediction of the lateral velocity distribution is important for many flood alleviation schemes, as well as for studies on sediment transport and dispersion in such channels. The present paper proposes a method for predicting the depth-averaged velocity in compound channels with partially vegetated floodplains, based on an analytical solution to the depth-integrated Reynolds-Averaged Navier-Stokes equation with a term included to account for the effects of vegetation. The vegetation is modelled via an additional term in the momentum equation to account for the additional drag force. The method includes the effects of bed friction, drag force, lateral turbulence and secondary flows, via four coefficients f, CD, λ & Γ respectively. The predicted lateral distributions of depth-averaged velocity agree well with the experimental data. The analytical solutions can also be used to predict the distribution of boundary shear stresses, which adds additional weight to the method proposed.

关键词： vegetation compound channel floodplain velocity

Sediment Transport in Rivers with Overbank Flow

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四川大学学报（工程科学版） 2005年第S1期37卷 16-29页

作者： donald W KNIGHT Water Eng. The Univ.of BirminghamUK

Some concepts related to sediment transport in rivers with overbank flow are *** a description of the physical processes that are involved when a river inundates its floodplains,some simple com- putational methods are presented which permit the depth-averaged velocity and boundary shear stress to be pre- dicted within a cross section of variable,but prismatic *** methoda account for the strong transverse shear in velocity that occurs when the stage is just above bankfull,as well as ...

关键词： sediment transport overbank flow

A numerical implementation of the length-scale independent phase field method

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Acta Mechanica Sinica 2021年第1期37卷 92-104,I0003页

作者： Wenlong Zhang Ala Tabiei donald French Department of Civil Engineering University of CincinnatiCincinnatiOH45220USA Department of Mathematics University of CincinnatiCincinnatiOH45220USA

The phase field method for fracture integrates the Griffith theory and damage mechanics approach to predict crack initiation and propagation within one *** replaced the discrete representation of crack by diffusive damage and solved it based on a minimization of the global energy storage *** a result,no crack tracking topology is needed,and complex crack shapes can be captures without user ***,it is also reported to have an inconsistency between the predicted fracture toughness and the material ***,a novel energetic degradation function was proposed in literature to handle this *** research does some further modifications to the global energy storage functional so that Newton's method can be directly used to solve the energy *** the new energy form,direct implementation of the length-scale independent phase field method into finite element packages like LS-DYNA becomes *** paper presents the framework and details of implementing the length-scale independent phase field method into LS-DYNA through a user-defined element and material *** numerical examples are presented to compare with the experiment crack *** importantly,this paper is one of the first ones to quantitatively predict accurate force response compared to *** examples verify the accuracy of the new energy form and implementation.

关键词： Phase field method Length-scale independency Newton’s method LS-DYNA