Miracle-dz/UniFAR-FTUs huggingface dataset:
Tensile and fl exural behaviors of additively manufactured continuous carbon fi ber-reinforced polymer composites

Continuous carbon fiber-reinforced polymer (CCFRP) composites are lightweight and strong materials that have been used in a wide range of applications in automotive and aerospace industries. Traditional manufacturing processes (e.g., lay-up and out of autoclave techniques) are not capable of fabricating complex composites. Additive manufacturing (AM) has been increasingly used to fabricate composites with complex geometries. In this study, CCFRP with concentric and isotropic carbon fiber infill patterns were additively manufactured using fused deposition modeling (FDM). The microstructures of CCFRP composites with both infill patterns were characterized by an optical microscope and a scanning electron microscope (SEM). The void density was characterized for infill, solid and carbon fiber regions. Four-point flexural tests and tensile tests were conducted to evaluate the effects of carbon fiber concentration and infill patterns on both tensile and flexural behaviors. A stiffness averaging method was used to model the elastic behavior of CCFRP samples with different microstructures by taking into account porosity in infill, solid and carbon fiber bundles. Experimental results have shown that the specimens with the concentric carbon fiber infill pattern exhibit better flexural strength and energy absorption capability than those with the isotropic carbon fiber infill pattern. As carbon fiber concentration and the number of fiber rings increase, the flexural strength of the CCFRP composite increases. The specimen with 48.72 wt% carbon fibers showed the highest flexural strength of 270.63MPa. In comparison with chopped carbon fiber-reinforced polymer composites, the flexural strength of the CCFRP specimen was increased by 40%. The predicted elastic moduli are in good agreement with experimental data.
Infra-red collision-induced and far-line absorption in dense CO 2 atmospheres

Collision-induced absorption is of great importance to the overall radiative budget in dense CO2-rich atmospheres, but its representation in climate models remains uncertain, mainly due to a lack of accurate experimental and theoretical data. Here we compare several parameterisations of the effect, including a new one that makes use of previously unused measurements in the 1200 to 1800 cm−1 spectral range. We find that a widely used parameterisation strongly overestimates absorption in pure CO2 atmospheres compared to later results, and propose a new approach that we believe is the most accurate possible given currently available data.
Constant-Time Implementations of Falcon

A new implementation of Falcon is presented. It solves longstanding issues in the existing reference code: the new implementation is constant-time, it does not require floating-point hardware (though it can use such hardware for better performance), it uses less RAM, and achieves much better performance on both large systems (x86 with Skylake cores, POWER8,.) and small microcontrollers (ARMCortex M4). In particular, signature generation with Falcon-512 takes less than 390k cycles on a Skylake (82k cycles only for verification), and about 19.4 million cycles on an ARM Cortex M4.
Effects of Li 3 PO 4 additive on the electrochemical properties of

Li2FeSiO4/C is successfully modified by Li3PO4 additive to achieve excellent electrochemical properties. In comparison with bare Li2FeSiO4/C, the samples with Li3PO4 show no changes in the morphology and structure, which are verified by X-ray powder diffraction and scanning electron microscopy results. High resolution transmission electron microscopy image confirms that Li2FeSiO4/C and Li3PO4 exist in the form of nanocomposites. When used as LIB cathodes, the Li2FeSiO4/ Li3PO4/C composites show notably improved electrochemical performance with outstanding high rate performance and superior cyclability than those of Li2FeSiO4/C. The sample with 6 mmol% (LFS-6) exhibits a large discharge capacity of 114.1 mAh g−1 with a remarkable capacity retention of 104.2% over 100 cycles at 10 C, which are much better than those of Li2FeSiO4/C (89.0 mAh g−1 and capacity retention of 75.9%). The enhancement in the electrochemical properties of Li2FeSiO4/C may be attributed to the existence of Li3PO4 additive with high ionic conductivity, which can accelerate the lithium ions diffusion capability and facilitate the charge transfer process.
ng investigation of design A neuroimagi ideation with and without inspirational stimuli d understanding the meaning of near and far stimuli

Despite the fact that inspirational stimuli (e.g., analogies) have been shown to be an effective means to assist designers, little is known about the neurological processes supporting inspired design ideation. To explore the impact of inspirational stimuli on design ideation, an fMRI concept generation task was developed (N 1⁄4 21). Results demonstrate that inspirational stimuli of any kind (near or far from the problem space) improve the fluency of idea generation. Furthermore, neuroimaging data help to uncover two distinct brain activation networks based upon reasoning with and without inspirational stimuli. We term these inspired internal search and unsuccessful external search. These brain activation networks give insight into differences between ideating with and without inspirational stimuli, and between inspirational stimuli of varying distances. 2018 Elsevier Ltd. All rights reserved.
Executive and Entrepreneur Strategic Paradoxes in the Digital

To survive in today’s increasingly complex business environments, firms must embrace strategic paradoxes: contradictory yet interrelated objectives that persist over time. This can be one of toughest of all leadership challenges, as managers must accept inconsistency and contradictions. In this article, we develop and empirically test a set of hypotheses related to ambidexterity, a key example of a paradoxical strategy. Through our analysis of data from a survey of executive leaders, we find a link between organizational ambidexterity and strategic planning, suggesting that the complexities of navigating in explorative ventures require more explicit strategy work than the old certainties of a legacy business. We identify and discuss inherent paradoxes and their implications for firm performance in 22 industry-specific strategies, where empirical industry data shows a pattern of conflict between explorative growth strategies and exploitative profit strategies. We argue that this is just one of the inherent paradoxes in the ambidexterity construct.
REFINEMENT OF EXHAUST SYSTEM NOISE FROM LARGE DIESEL ENGINES USING ONE DIMENSIONAL ( 1 D ) SIMULATION

The airborne noise levels for large capacity diesel engines must meet legislative requirements as a minimum and may have additional constraints on level and spectral content. Exhaust system testing and development for this class of engine is generally limited to confirmation testing due to limited availability of test facilities, high cost of test hardware and testing, limited physical access, and low production volumes. Large diesel engines differ significantly from those used for automotive applications in regard to gas flow characteristics, exhaust system design, and operational modes. This study evaluates the applicability of an automotive industry one dimensional (1D) simulation software suite (Ricardo WAVETM) to the refinement of large diesel engine exhaust system performance and describes the modelling approach used. The Defence Science and Technology Group (DSTG) has developed a computer based capability for modelling the acoustic response and flow performance of exhaust systems and exhaust system components representative of large diesel engines. This capability can be used for exhaust system components, complete exhaust systems, and full engine installations. A virtual transmission loss test bench approach was employed to reduce simulation run times compared to that of complete engine installations. The modelling was conducted in order of increasing complexity where simple models were validated before progressing to more complex models. Published research and data were used for validation. The modelling capability described in this study permits assessment and development of exhaust systems, with or without engine source data, at lower cost. Savings are achieved through a reduction in test samples and physical testing.
Complete versus incomplete fusion in 6 Li + 144 Sm reaction

The effect of breakup of the loosely bound projectile on fusion is a topic of current interest. In a recent article [1], it has been reported that the complete fusion (CF) cross section for 6 Li+ 144 Sm is found to be suppressed by about 32% compared to the coupled channel calculation as well as other reactions forming the same compound nucleus but involving strongly bound projectiles. The reason for this suppression is attributed to the loss of incident flux due to the breakup of 6 Li ( α+d) prior to the fusion. In such a situation, one of the breakup fragments (α or d) gets fused with the target leading to incomplete fusion (ICF) or partial fusion. So, there can be three different scenarios: (i) the projectile as a whole is captured by the target leading to CF, (ii) only one of the breakup fragments gets captured leading to ICF, and (iii) both of the breakup fragments get captured also contributing to CF. It would be interesting to investigate the experimental CF and ICF cross section and compare them with the theoretical estimation to understand the underlying connection between breakup and fusion for the above system.
On the Propulsive Efficiency of Unsteady Propulsors

This study examines the propulsive efficiency of underwater vehicles which are driven by unsteady propulsors. The analysis is focused on vehicles utilizing a novel thruster which expels finite propulsive jets periodically. This analysis also applies to swimming squid and jellyfish (from which the thruster was inspired), and can also be extended to any periodic unsteady propulsion. The vehicle trajectory is solved analytically to calculate the exact work output/input and it is observed that with unbounded forcing there is an optimal thruster duty cycle, λ = 0.31, which maximizes propulsive efficiency. This optimal duty cycle is very close to the actual jetting duty cycle observed in steadily swimming squid.
TS 1494 del 6 polymorphism and increased risk of developing breast cancer

Thymidylate synthase (TS) is a critical enzyme involved in folate metabolism and catalyses reductive methylation of deoxyuridylate to thymidylate, which is the essential precursor for DNA. Polymorphisms in genes involved in folate metabolism may influence DNA methylation, DNA synthesis and repair. These functions may provide insight individual susceptibility to cancer. We investigated the probable effects of TS 1494del6 polymorphism on the risk of developing breast cancer. Genotypes of 298 cases and 300 controls were determined by use of PCR-RFLP. Variant -6 bp allele frequency was significantly higher in women with breast cancer than in controls (0.554 vs. 0.467; OR: 1.42, 95% CI: 1.13-1.78; P=0.003). The frequency of the -6 bp/-6 bp genotype was 12% in control group, while increased to 26.8% in women with breast cancer. Similarly, increased risk was observed for breast cancer of the -6 bp/-6 bp genotype compared with the +6 bp/+6 bp genotype (OR 2.59, 95% CI: 1.49-4.49; P=0.001). The risk increased in women with -6 bp/-6 bp genotype as well as age ≥55 (OR, 3.06; 95% CI: 1.15-8.07; P=0.024), BMI ≥25 kg/m2 (OR, 2.81; 95% CI: 1.45-5.46; P=0.002), early menarche (before age 13 years) (OR, 3.52; 95% CI: 1.37-9.04; P=0.009), late age at first pregnancy (OR, 2.87; 95% CI: 1.77-4.64; P=0.0001), postmenopausal status (OR 5.44; 95% CI: 2.23-13.24; P=0.001), and negative smoking history (OR=3.09; 95% CI: 1.87-5.09; P=0.001). In conclusion, the TS 1494del6 polymorphism gene may contribute to an increased risk for breast cancer development, particularly in the presence of 55 years of age or older, high BMI, early age at menarche, late age at first pregnancy, postmenopausal status, and negative smoking history.
Matlab-Based Graphical Synthesis of Planar Mechanisms Synthesis of a 4-Bar Quick Return Mechanism

Graphical synthesis using MATLAB for a four bar quick return mechanism is a successful approach that will help in designing a mechanism and satisfy all the needed characteristics of the mechanism. The quick return mechanism has wide industrial applications like the shaping machine. This paper discusses the mathematical model of the four bar mechanism, also it shows the analytical equations used to design the mechanism. MATLAB was used to solve a set of equations and give the optimal dimensions of the planar mechanism.
Using Kinematically Complex Robots for Case Studies in Embodied Cognition

We present two case studies in embodied cognition which use kinematically complex robots for spatial cognition and concept forming. The first case study involves substrate classification on the basis of primarily proprioceptive data. During walking over various substrates a legged robot generates certain substrate specific sensory motor patterns. The acquired data is used for training a growing self-organizing neural network, which is connected with a standard output layer representing different substrates. The second case study is concerned with a recognition system which learns to recognize objects based on multimodal sensorimotor coordination. The sensorimotor coordination is generated through interaction with the environment. The system uses a learning architecture which is composed of reactive and deliberative layers. The reactive layer consists of a database of behaviors that are modulated to produce a desired behavior. We have implemented in the learning architecture an object manipulation behavior inspired by the concept that infants learn about their environment through manipulation [1]. While manipulating objects, the agent records both proprioceptive data and exteroceptive data. Both of these types of data are combined and statistically analyzed in order to extract important parameters that distinctively describe the object being manipulated. This data is then clustered using the standard k-means algorithm and the resulting clusters are labeled. The labeling is used to train a radial basis function network for classifying the clusters. It has been found that the trained neural network is able to classify objects even when only partial sensory data is available to the system. Our preliminary results in both case studies demonstrate that kinematically complex robots are suitable for learning about their environment from experience and provide a new useful class of proprioceptive information in contrast to wheeled systems. Keywords— Substrate classification, Learning through interaction, Sensorimotor coordination, Object recognition
Chapter 22 Electrotransfer of Plasmid Vector DNA into Muscle

Wolff et al. (1990) first reported that plasmid DNA injected into skeletal muscle is taken up by muscle cells and the genes in the plasmid are expressed for more than two months thereafter, although the transfected DNA does not usually undergo chromosomal integration (Wolff et al., 1991, 1992). However, the relatively low expression levels attained by this method have hampered its applications for uses other than as a DNA vaccine (Davis et al., 1995). There are a number of reports analyzing the conditions that affect the efficiency of gene transfer by intramuscular DNA injection and assessing the fine structures of expression plasmid vectors that may affect expression levels (Davis et al., 1993; Liang et al., 1996; Norman et al., 1997). Furthermore, various attempts were done to improve the efficiency of gene transfer by intramus cular DNA injection. Consequently, regenerating muscle was shown to produce 80-fold or more protein than did normal muscle, following injection of an expression plasmid. Muscle regeneration was induced by treatment with cardiotoxin or bupivacaine (Wells, 1993; Vitadello et al., 1994). We previously demonstrated that by combining a strong promoter and bupivacaine pretreatment intramuscular injection of an IL-5 expression plasmid results in IL-5 production in muscle at a level sufficient to induce marked proliferation of eosinophils in the bone marrow and eosinophil infiltration of various organs (Tokui et al., 1997). It was also reported that a single intramuscular injection of an erythropoietin expression plasmid produced physiologically significant elevations in serum erythropoietin levels and increased hematocrits in adult mice (Tripathy et al., 1996). Hematocrits in these animals remained elevated at >60% for at least 90 days after a single injection. However, improvements to this method have not been sufficient to extend its applications including clinical use. Electroporation has long been used for DNA transfection of cells in vitro and it implies a physical process which exposes cells to a brief, high voltage that induces temporary poration to the cell membrane, allowing the influx of large molecules
Anther Dehiscence, Pollen Viability and Stigma ReceptivityStudy on Cultivars of Black Pepper (Piper nigrum L.)

A study on floral biology of black pepper cultivars that cover anther dehiscence, pollen viability and stigma receptivity was carried out with the aim to improve the efficiency of intervarietal hybridisation in black pepper breeding work. In this study, 10 black pepper cultivars were used, namely ‘Semongok Aman’, ‘Kuching’, ‘Semongok Emas’, ‘Semongok Perak’, ‘Semongok 1’, ‘Nyerigai’, ‘India’, ‘Lampung Daun Lebar’, ‘Sarikei’ and ‘Yong Petai’. The results show that anthesis in the 10 black pepper cultivars occurred between 10.25 pm and 10.50 pm. In the pollen viability study, results suggest that pollen are more viable between five and 10 hours after anther dehisced. However, there are variations among the cultivars for the optimum viable stage. For stigma receptivity, the results show that stigmas at Stage 2 (elongation and spreading of stigmata) and Stage 3 (complete emergence and wide spreading of stigmata) had better receptivity than Stage 1 (first appearance of stigmata). There was no difference in stigma receptivity stages among the 10 cultivars. This study thus, shows the most suitable time for intervarietal hybridisation via artificial pollination.
VRASED: A Verified Hardware/Software Co-Design for Remote Attestation

Remote Attestation (RA) is a distinct security service that allows a trusted verifier (V rf) to measure the software state of an untrusted remote prover (P rv). If correctly implemented, RA allows V rf to remotely detect if P rv is in an illegal or compromised state. Although several RA approaches have been explored (including hardware-based, software-based, and hybrid) and many concrete methods have been proposed, comparatively little attention has been devoted to formal verification. In particular, thus far, no RA designs and no implementations have been formally verified with respect to claimed security properties. In this work, we take the first step towards formal verification of RA by designing and verifying an architecture called VRASED: Verifiable Remote Attestation for Simple Embedded Devices. VRASED instantiates a hybrid (HW/SW) RA codesign aimed at low-end embedded systems, e.g., simple IoT devices. VRASED provides a level of security comparable to HW-based approaches, while relying on SW to minimize additional HW costs. Since security properties must be jointly guaranteed by HW and SW, verification is a challenging task, which has never been attempted before in the context ofRA. We believe that VRASED is the first formally verified RA scheme. To the best of our knowledge, it is also the first formal verification of a HW/SW co-design implementation of any security service. To demonstrate VRASED’s practicality and low overhead, we instantiate and evaluate it on a commodity platform (TI MSP430). VRASED was deployed using the Basys3 Artix-7 FPGA and its implementation is publicly available.
Microbial Community Diversity and Vertical Distribution in a Columnar Sediment of Maluku Strait

The sediment samples were collected from Maluku Strait at a depth of 1250 m, which is influenced by Mindanao Current and Indonesian Throughflow. Based on 16S rRNA clone libraries, the community structure and vertical distribution of archaea and bacteria were studied in a columnar sediment of 2m in length. From the surface sediment, 16S sequences were derived from fourteen bacterial phyla (Gammaproteobacteria, Planctomycetes, Alphaproteobacteria, Deltproteobacteria were dominant), but were limited to two groups of archaea: Crenarchaeota (99%) and Euryarchaeota (1%). Besides, 90% of the archaea clones were ammonia oxidation-related which indicated that the ammonia-oxidizing archaea might make a significant contribution to the chemosynthesis in the surface sediment. Contrastively in the bottom sediment, six bacterial phylogenetic groups were obtained (Gammaproteobacteria and Firmicutes were absolutely dominant), however no archaea 16S rRNA was detected. The microbial diversity of surface sediment was much higher than the bottom and seven unique bacterial phyla were obtained from two sediment respectively. The geochemical elements analysis revealed that the content of C, TOC and S in the surface sediment was much higher than the bottom, but the content of P is contrary. The microbial communities might be in response to the geochemical substance transfer and deposit influenced by the ocean current and it deserves further study compared with the other sediment samples in this area.
UvA-DARE ( Digital Academic Repository ) Comparative analysis of transcriptome and fitness profiles reveals general and condition-specific cellular functions involved in adaptation to environmental change in Saccharomyces

The transcriptional responses of yeast cells to a wide variety of stress conditions have been studied extensively. In addition, deletion mutant collections have been widely used to measure the combined effect of gene loss and stress on growth (fitness). Here we present a comparative analysis of 1,095 publicly available transcription and genome-wide fitness profiles in yeast, from different laboratories and experimental platforms. We analyzed these data, using T-profiler, to describe the correlation in behavior of a priori defined functional groups. Twomode clustering analysis of the fitness T-profiles revealed that functional groups involved in regulating ribosome biogenesis and translation offer general stress resistance. These groups are closely related to growth rate and nutrient availability. General stress sensitivity was found in deletion mutant groups functioning in intracellular vesicular transport, actin cytoskeleton organization, and cell polarity, indicating that they play an key role in maintaining yeast adaptability. Analysis of the phenotypic and transcriptional variability of our a priori defined functional groups showed that the quantitative effect on fitness of both resistant and sensitive groups is highly condition-dependent. Finally, we discuss the implications of our results for combinatorial drug design.