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Computer-based Creativity Enhanced Conceptual Design Model for Non-routine Design of Mechanical Systems

Chinese Journal of Mechanical Engineering 2014年第6期27卷 1083-1098页

作者： LI Yutong WANG Yuxin DUFFY alex H B Department of Mechanical & Electrical Engineering China University of Petroleum Design Manufacture and Engineering ManagementUniversity of Strathclyde

Computer-based conceptual design for routine design has made great strides, yet non-routine design has not been given due attention, and it is still poorly automated. Considering that the function-behavior-structure（FBS） model is widely used for modeling the conceptual design process, a computer-based creativity enhanced conceptual design model（CECD） for non-routine design of mechanical systems is presented. In the model, the leaf functions in the FBS model are decomposed into and represented with fine-grain basic operation actions（BOA）, and the corresponding BOA set in the function domain is then constructed. Choosing building blocks from the database, and expressing their multiple functions with BOAs, the BOA set in the structure domain is formed. Through rule-based dynamic partition of the BOA set in the function domain, many variants of regenerated functional schemes are generated. For enhancing the capability to introduce new design variables into the conceptual design process, and dig out more innovative physical structure schemes, the indirect function-structure matching strategy based on reconstructing the combined structure schemes is adopted. By adjusting the tightness of the partition rules and the granularity of the divided BOA subsets, and making full use of the main function and secondary functions of each basic structure in the process of reconstructing of the physical structures, new design variables and variants are introduced into the physical structure scheme reconstructing process, and a great number of simpler physical structure schemes to accomplish the overall function organically are figured out. The creativity enhanced conceptual design model presented has a dominant capability in introducing new deign variables in function domain and digging out simpler physical structures to accomplish the overall function, therefore it can be utilized to solve non-routine conceptual design problem.

关键词： conceptual design non-routine design creative enhance model computer-based approach mathematical expression

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Colorful Insights： Advances in Imaging Drive Nove 3reakthroughs in Ca^2＋ Signaling

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Molecular Plant 2015年第3期8卷 352-355页

作者： alex Costa Jorg Kudla Dipartimento di Bioacienze Università degli Studi di Milano Via G. Celoria 26 20133 Milan Italy Istituto di Biofisica Consiglio Nazionale delle Ricerche Via G. Celoria 26 20133 Milan Italy Institut für Biologie und Biotechnologie der Pflanzen Universitat Münster Schlossplatz 4 48149 Münster Germany

In plants, Ca^2＋ signals occur in response to both environmental and developmental stimuli. These signals involve increases in [Ca^2＋] in compartments such as the cytoplasm, nucleus, and mitochondria, and can display multiple shapes ranging from sin- gle transients to repetitive Ca^2＋ oscillations. Generation and shaping of stimulus specific [Ca^2＋] signatures depends on Ca^2＋ influxes and effluxes occurring at both the plasma membrane （PM） and membranes of the different subcellular compartments.

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Autonomous machine learning for early bot detection in the internet of things

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Digital Communications and Networks 2023年第6期9卷 1301-1309页

作者： alex Medeiros Araujo Anderson Bergamini de Neira Michele Nogueira Department of Informatics Federal University of Parana(UFPR)CuritibaBrazil Department of Computer Science Federal University of Minas Gerais(UFMG)Belo HorizonteBrazil

The high costs incurred due to attacks and the increasing number of different devices in the Internet of Things(IoT)highlight the necessity of the early detection of botnets(i.e.,a network of infected devices)to gain an advantage against ***,early botnet detection is challenging because of continuous malware mutations,the adoption of sophisticated obfuscation techniques,and the massive volume of *** literature addresses botnet detection by modeling the behavior of malware spread,the classification of malicious traffic,and the analysis of traffic *** article details ANTE,a system for ANTicipating botnEt signals based on machine learning *** system adapts itself to different scenarios and detects different types of *** autonomously selects the most appropriate Machine Learning(ML)pipeline for each botnet and improves the classification before an attack effectively *** system evaluation follows trace-driven experiments and compares ANTE results to other relevant results from the literature over four representative datasets:ISOT HTTP Botnet,CTU-13,CICDDoS2019,and *** show an average detection accuracy of 99.06%and an average bot detection precision of 100%.

关键词： Network security Bot early detection Autonomous machine learning Network traffic analysis

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小丑虾的恶趣味信息素“骗局”与生存游戏

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环球人文地理 2024年第15期 70-77页

作者： Sara stockpix4u serg＿dibrova diveivanov alex Traveler suwatsir DaiMar Vitalii6447 beelaa MARYGRACE piboon

用信息素迫使异性百依百顺，夫妻同生共死，喜欢“活体盛宴”……只有5厘米大的虾，是如何在海底“为非作歹”，让生物避之不及？动物世界中，为了在求偶游戏中获胜，大家各显神通。作为为数不多的终身一夫一妻制的生物，小丑虾会在海...

用信息素迫使异性百依百顺，夫妻同生共死，喜欢“活体盛宴”……只有5厘米大的虾，是如何在海底“为非作歹”，让生物避之不及？动物世界中，为了在求偶游戏中获胜，大家各显神通。作为为数不多的终身一夫一妻制的生物，小丑虾会在海底深处的珊瑚礁里施展“魅惑之术”，让伴侣对自己死心塌地。小丑虾不丑海底世界的迷你油画小丑虾一般是指夏威夷海星虾，它还有别的名字，如油彩蜡膜虾、海星虾、贵宾虾等等，通常生活在印度洋至太平洋沿岸，以及夏威夷潮间带之下的珊瑚礁岩附近。

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MODELING AND OPTIMIZATION OF THE CUTTING FLUID FLOW AND PARAMETERS FOR INCREASING TOOL LIFE IN SLOT MILLING ON St52

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International Journal of Modeling, Simulation, and Scientific Computing 2013年第2期4卷 63-73页

作者： AMIR MAHYAR KHORASANI alex KOOTSOOKOS Faculty of High Technology and Engineering Iran University of Industries and Mines 578-Hafez Street Karimkhan Blv.TehranIran School of Aerospace Mechanical and Manufacturing Engineering RMIT UniversityG.P.O.Box 2476VMelbourne 3001Australia

In this paper the CNC machining of St52 was modeled using an artificial neural network(ANN)in the form of a four-layer multi-layer perceptron(MLP).The cutting parameters used in the model were cutting fluid flow,feed rate,spindle speed and the depth of cut and the model output was the tool *** obtaining more accuracy and spending less time Taguchi design of experiment(DOE)has been used and correlation between the output of the ANN and the experimental results was 96%.Further optimization process has been done by use of a genetic algorithm(GA).After optimization process tool life was increased about 8%equal to 33 min and was corroborated by experimental *** demonstrates that the coupling of an ANN with the GA optimization technique is a valid and useful approach to use.

关键词： Cutting fluid flow tool life optimization slot milling artificial neural networks.

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Reduction of Linear Systems of ODEs with Optimal Replacement Variables

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Communications in Computational Physics 2011年第3期9卷 756-779页

作者： alex Solomonoff Wai Sun Don Camberville Research Institute SomervilleMAUSA Department of Mathematics Hong Kong Baptist UniversityKowloon TongHong Kong

In this exploratory study,we present a new method of approximating a large system of ODEs by one with fewer equations,while attempting to preserve the essential dynamics of a reduced set of variables of *** method has the following key elements:(i)put a(simple,ad-hoc)probability distribution on the phase space of the ODE;(ii)assert that a small set of replacement variables are to be unknown linear combinations of the not-of-interest variables,and let the variables of the reduced system consist of the variables-of-interest together with the replacement variables;(iii)find the linear combinations that minimize the difference between the dynamics of the original system and the reduced *** describe this approach in detail for linear systems of *** techniques and issues for carrying out the required minimization are *** of systems of linear ODEs and variable-coefficient linear PDEs are used to demonstrate the *** show that the resulting approximate reduced system of ODEs gives good approximations to the original ***,some directions for further work are outlined.

关键词： System reduction optimal replacement variables resolved variables optimal prediction

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Cell therapy for macular degeneration—first phase Ⅰ/Ⅱ pluripotent stem cell-based clinical trial shows promise

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Science China(Life Sciences) 2015年第1期58卷 119-120页

作者： CHEN ZhiGuo ZHANG Y.alex Cell Therapy Center Xuanwu HospitalCapital Medical University and Key Laboratory of NeurodegenerationMinistry of Education Center of Neural Injury and Repair Beijing Institute for Brain Disorders

Embryonic stem（ES）cells,a type of pluripotent stem cells（PSCs）that are derived from the inner cell mass of blastocysts,have been discovered for more than three decades[1].Given the almost infinite self-renewal capacity and the potential to differentiate into any specific cell type in an individual,ES cells and PSCs have brought hope for the treatment of many unmet ***,the advantages of PSCs-the highly proliferative and plastic capacities,also give rise to concerns regarding the development of tumors.

关键词：多能干细胞系细胞治疗临床试验自我更新能力变性黄斑显示 PSCs

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Understanding the multi-seasonal spectral and biophysical characteristics of reedbed habitats in the UK

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Geo-Spatial Information Science 2016年第4期19卷 233-244页

作者： alex O.Onojeghuo George A.Blackburn Department of Surveying and Geoinformatics Nnamdi Azikiwe UniversityAwkaNigeria Lancaster Environment Centre Lancaster UniversityLancasterUK

Reedbed in the UK has been classified as priority habitat for most regional Biodiversity ***,critical information pertaining to the quality and spatial coverage of reedbed is currently *** paper presents the results of a project conducted in collaboration with the Cumbria Wildlife Trust and Environment Agency aimed at monitoring and understanding variations in the spectral reflectance and biophysical properties of reedbed canopies across Leighton Moss Nature Reserve in Lancashire,northwest *** the seasonal phenological cycle of the reedbed habitats in the study area,optimal spectral indices required for quantifying its biophysical properties were determined using field spectroscopy and ground-based *** of the experiment showed that the narrow-bandderived Difference Vegetation Index(DVI)and Renormalised Difference Vegetation Index(RDVI),with the correlation coefficient R2 of 0.77 and 0.72,respectively,provided the most accurate estimates of the leaf area index for the reedbed canopies.

关键词： Vegetation index leaf area index biophysical measures

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Effect of host-cocoon mass on adult size in the secondary hyperparasitoid wasp, Pteromalus semotus （Hymenoptera： Pteromalidae）

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Insect Science 2012年第3期19卷 383-390页

作者： Jeffrey A. Harvey alex Gumovsky Rieta Gols Netherlands Institute of Ecology Department of Terrestrial Ecology Wageningen The Netherlands Schmalhausen Institute of Zoology Kiev Ukraine Laboratory of Entomology Plant Science Group Wageningen University Wageningen The Netherlands

Parasitoids have long proven to be model organisms in studying resourcerelated constraints on immature development. Here we examine the relationship between host cocoon （= pupal） size in the gregarious endoparasitoid wasp, Cotesia glomerata, and development time and adult size in the solitary idiobiont hyperparasitoid, Pteromalus semotus. Little is known about the biology or ecology of this ecto-hyperparasitoid species, although it is one of the major secondary hyperparasitoids of C. glomerata. The size of the adult wasp covaried with the size of the host cocoon at parasitism. Moreover, female wasps were larger than male wasps for a given cocoon size. Adult wasps have remarkably long life-spans, 3 months on average. Longevity did not significantly differ with sex. We also examined how larvae of P. semotus exclude other potential competitors. P. semotus is protandrous, with females taking significantly longer to complete their development than males. In experiments where several eggs of P. semotus were placed on individual pupae of C. glomerata, newly hatched hyperparasitoid larvae moved rapidly over the surface of the host and destroyed the eggs of any conspecifics by biting them before they would initiate feeding on host tissues. Our results are discussed in relation to those with other studies with solitary ichneumonid idiobiont hyperparasitoids of C. glomerata.

关键词： Cotesia glomerata growth idiobiont longevity protandry trade-off

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The Role of the Subjectivist Position in the Probabilization of Forensic Science

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Journal of Forensic Science and Medicine 2015年第2期1卷 140-148页

作者： alex Biedermann Faculty of Law Criminal Justice and Public AdministrationSchool of Criminal JusticeUniversity of Lausanne1015 Lausanne-DorignySwitzeriand

This paper is concerned with the contribution of forensic science to the legal process by helping reduce *** it is now widely accepted that uncertainty should be handled by probability because it is a safeguard against incoherent proceedings,there remain diverging and conflicting views on how probability ought to be *** is exemplified by the proposals in scientific literature that call for procedures of probability computation that are referred to as"objective,"suggesting that scientists ought to use them in their reporting to recipients of expert information.I find such proposals *** need to be viewed cautiously,essentially because ensuing probabilistic statements can be perceived as making forensic science prescriptive.A motivating example from the context of forensic DNA analysis will be chosen to illustrate *** a main point,it shall be argued that such constraining suggestions can be avoided by interpreting probability as a measure of personal belief,that is,subjective *** references to foundational literature from mathematical statistics and philosophy of science,the discussion will explore the consequences of this interdisciplinary viewpoint for the practice of forensic expert *** will be emphasized that-as an operational interpretation of probability_the subjectivist perspective enables forensic science to add value to the legal process,in particular by avoiding inferential impasses to which other interpretations of probability may ***,understanding probability from a subjective perspective can encourage participants in the legal process to take on more responsibility in matters regarding the coherent handling of *** would assure more balanced interactions at the interface between science and the ***,in turn,provides support for ongoing developments that can be called the"probabilization"of forensic science.

关键词： Forensic science legal process subjective probability uncertainty reduction

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