Mitigating Undercutting Attacks: A Study on Mining and Transaction Fee Behavior by Bao, Claire

“…Undercutting attacks are when miners intentionally fork the blockchain in an attempt to steal transactions from an already-mined block. …”
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Modeling the Performance of a Multi-Hop LoRaWAN Linear Sensor Network for Energy-Efficient Pipeline Monitoring Systems by Alhomyani, Haneen, Fadel, Mai, Dimitriou, Nikos, Bakhsh, Helen, Aldabbagh, Ghadah

“…The obtained results show that when we have a large-scale network, such as an oil pipeline with medium traffic load requirements, multi-hop topologies may be an efficient deployment solution.…”
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Design and Projected Performance of a Flapping Foil AUV by Licht, Stephen, Polidoro, Victor, Flores, Melissa, Hover, Franz S., Triantafyllou, Michael S.

“…The maximum speed of the vehicle is estimated based on the limitations of the specific actuator and is shown to be a strong function of the vehicle drag coefficient. When using four foils, the maximum speed increases from 1 m/s with a vehicle Cd of 1.4 to 2 m/s when Cd = 0.1, where Cd is based on vehicle frontal area. …”
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The effects of person-environment fit on employees' knowledge contribution by Pee, Loo Geok

“…Analysis of data from a survey of 211 employees using polynomial regression and response surface methodology indicates that when employees’ ideals about the level of skill variety, task identity, organizational innovativeness fit with those in their organizations, they develop strong commitment and engage in more knowledge contributions. …”
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Metacognitive learning in a fully complex-valued radial basis function neural network by Suresh, Sundaram, Sundararajan, Narasimhan, Savitha, R.

“…Mc-FCRBF has two components: a cognitive component containing the FC-RBF network and a metacognitive component, which regulates the learning process of FC-RBF. In every epoch, when a sample is presented to Mc-FCRBF, the metacognitive component decides what to learn, when to learn, and how to learn based on the knowledge acquired by the FC-RBF network and the new information contained in the sample. …”
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Single-stage and cascade design of high order multiplierless linear phase FIR filters using genetic algorithm by Ye, Wen Bin, Yu, Ya Jun

“…The proposed GA applies to the design of single-stage filters. When a cascade form filter is designed, for each single-stage filter meeting the filter specification generated during the course of GA, an integer polynomial factorization is applied. …”
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Heuristic control of multiple batch processors with incompatible job families and future job arrivals by Tajan, John Benedict C., Sivakumar, Appa Iyer., Gershwin, Stanley B.

“…At each instance a decision has to be made, MPC_REPEAT decomposes the problem of simultaneously assigning multiple batches to multiple processors into sequentially assigning multiple batches to multiple processors. When job families are uncorrelated, we show via simulation experiments that MPC_REPEAT has significantly lower mean cycle time than a previously proposed look-ahead method except when: (MPC_REPEAT ignores some job families AND the traffic intensity is high.) …”
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Free vibration of exponential functionally graded beams with single delamination by Xiao, Jing, Shu, Dongwei, Liu, Yang

“…Results show that the natural frequency increases as the Young's modulus ratio increases, but such increase is smaller when the beam suffers a longer delamination. Furthermore, the effect of delamination length and longitudinal location on reducing natural frequency is aggravated when the material property (Young's modulus and density) changes less dramatically from the bottom to the top. …”
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Additive manufacturing of NiTi shape memory alloys using pre-mixed powders by Tor, Shu Beng, Wong, Chee How, Wang, Chengcheng, Tan, Xipeng, Du, Zehui, Chandra, Shubham, Sun, Zhongji, Lim, Joel Choon Wee, Lim, Choon Seng

“…It is suggested to adopt DED to in-situ alloy NiTi parts when using the elementally blended powders as feedstocks.…”
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A new hybrid algorithm for retinal vessels segmentation on fundus images by Dharmawan, Dhimas Arief, Li, Di, Ng, Boon Poh, Rahardja, Susanto

“…However, most of the available retinal vessels segmentation methods are prone to poorer results when dealing with challenging situations such as detecting low-contrast micro-vessels, vessels with central reflex, and vessels in the presence of pathologies. …”
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A solid‐state fibriform supercapacitor boosted by host – guest hybridization between the carbon nanotube scaffold and MXene nanosheets by Yu, Chenyang, Gong, Yujiao, Chen, Ruyi, Zhang, Mingyi, Zhou, Jinyuan, An, Jianing, Lv, Fan, Guo, Shaojun, Sun, Gengzhi

“…However, the synergistic interaction between conductive filaments and active nanomaterials remains a crucial challenge, especially when hydrothermal or electrochemical deposition is used to produce a core (fiber)-shell (active materials) fibrous structure. …”
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Analysis of arm sweep in artistic swimming using COMSOL by Yap, Crystal Yu Hui

“…This is due to the fluid motion around the arm, and when the arm moves downward during the initial motion, it also creates a downward force on the shoulder joint. …”
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Core – shell CuPd@Pd tetrahedra with concave structures and Pd-enriched surface boost formic acid oxidation by Chen, Yifan, Yang, Yifan, Fu, Gengtao, Xu, Lin, Sun, Dongmei, Lee, Jong-Min, Tang, Yawen

“…This bimetallic concave structure can endow the nanocrystals with abundant catalytically active sites and fascinating electronic effects, which are suggested to be favorable for electrocatalysis. When used as an electrocatalyst, the newly developed catalyst presented 4.2 and 2.4 times enhanced mass activity (501.8 A gPd−1) and specific activity (49.3 A m−2) for the formic acid oxidation when compared with those of the commercial Pd black catalyst (120.6 A gPd−1; 20.8 A m−2), respectively. …”
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Game of drones by Wei, LuoBin

“…Reactive collision avoidance is implemented by replanning trajectories when detecting an opponent. Game of Drones2019 concluded by the commencement of this project. …”
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Why did China seldom claim? : Overseas investment and bilateral investment treaties by Chen, Jiaxin

“…The article argues that China ratified the BITs for strategic consideration, including both economic and political aspects. When it comes to the actual use of BITs, the investment institutions and the business-state linkages play essential roles. …”
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Incremental route inference from low-sampling GPS data : an opportunistic approach to online map matching by Luo, Linbo, Hou, Xiangting, Cai, Wentong, Guo, Bin

“…Unlike the hidden Markov model (HMM)-based approach, which often experiences certain delay between the GPS observation and inference, our algorithm can produce immediate inference when a new GPS point becomes available. Furthermore, a rollback mechanism is provided to correct the already inferred route when some abnormal situations are detected during the opportunistic inference process. …”
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Membrane compaction in forward osmosis process by Ng, Daniel Yee Fan, Chen, Yunfeng, Dong, Zhili, Wang, Rong

“…Membrane compaction is commonly observed in polymeric membranes when subjected to elevated hydraulic pressure, but was rarely discussed in forward osmosis (FO) processes, since there was usually little hydraulic pressure difference across the membrane. …”
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Implementation of low sampling rate algorithm by Tan, Michael Teck Xin

“…Traditional image classification models learn directly from training images that are only processed for image augmentation and reshaping to fit the models. When these models are trained with a large number of images, it is highly inefficient as it could take extremely long durations of time to train or require a very powerful computer to complete the process. …”
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Methods of sustainability assessment of green logistics projects - part I: review of external stakeholders on green logistics initiatives by Toh, Alvin De Rong

“…Uncertainty is at its peak when involving external variables which Green Logistics initiatives have very little control over. …”
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Energy storage system based on PMP21529 buck-boost Bi-directional DC-DC converter by Yan, Shunyao

“…PMP 21529 is a four-switch bi-directional DC-DC buck-boost converter with high efficiency, when the input dc power bus is powered normally, the converter can charge the lithium battery in buck or boost mode, when the input power bus fails, or the power is cut off, the battery can be used as a backup system to supply power to the dc bus, which improves the power system's reliability. …”
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