*** and development(R&D)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other f...
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*** and development(R&D)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other fields,making them an important basis in the field of three-dimensional(3D)*** and challenges related to material types,powder properties,formability,viscoelasticity,and so forth also share common *** example,many metal materials are used in the field of aviation,while metals,polymers,and inorganic materials are used in the field of *** most widely used materials in biomedicine are *** homogeneous and non-homogeneous composites are also available for 3D printing,and impose an additional challenge in additive manufacturing;the use of heterogeneous composites in 3D printing is particularly challenging.
The paper is an introduction to the front-end pulse acquisition and the back-end pulse biomimetic reproduction *** system is capable of faithfully replicating the complete pulse waveform collected at the front *** Chi...
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The paper is an introduction to the front-end pulse acquisition and the back-end pulse biomimetic reproduction *** system is capable of faithfully replicating the complete pulse waveform collected at the front *** Chinese Medicine(TCM)practitioners analyze and diagnose the pulse patterns at the replication ***,the obtained pulse waveforms are analyzed and learnt by a neural network based on key diagnostic points in TCM pulse taking,which enables the determination of the corresponding relationships between different pulse waveforms and various pulse patterns in TCM pulse *** the support of clinical samples,an auxiliary diagnostic system for TCM pulse patterns ensures the accuracy of pulse pattern replication.
This paper discusses the role of social entrepreneurship and the discourse of techno-nationalism in defining national selfhood in contemporary Iran. To examine the issue, this paper develops an in-depth case study of ...
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This paper discusses the role of social entrepreneurship and the discourse of techno-nationalism in defining national selfhood in contemporary Iran. To examine the issue, this paper develops an in-depth case study of the development of stem cell research, and shows how an alliance between the leaders of the scientific community and Iran's politico-religious authority contributed to building technological capacity in the field of stem cell research in the first decade of the twenty-first century. The paper also highlights how the preliminary success of stem cell research, along with other knowledge-intensive technologies, has created a shared feeling of national pride and has served as the material base for the contemporary discourse of techno-nationalism. The paper concludes with the notion that the techno-nationalist discourse has the inherent potential to unwittingly help to redefine the dichotomy between Iran and the West in such a way that it becomes less antagonistic, should other factors permit.
Radar provides information on target distance, direction, and velocity, but not directly on angular velocity. We study signal processing for estimating angular velocity directly by radar. First, we describe the signal...
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The authors propose a new defined tensile stress distribution for steel fiber reinforced concrete (SFRC) to evaluate the flexural strength of SFRC beams. It is a simplified formula based on the SFRC tensile stress – ...
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Predicting the productivity of multistage fractured horizontal wells plays an important role in exploiting unconventional *** recent years,machine learning（ML） models have emerged as a new approach for such ***,the ...
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Predicting the productivity of multistage fractured horizontal wells plays an important role in exploiting unconventional *** recent years,machine learning（ML） models have emerged as a new approach for such ***,the scarcity of sufficient real data for model training often leads to imprecise predictions,even though the models trained with real data better characterize geological and engineering *** tackle this issue,we propose an ML model that can obtain reliable results even with a small amount of data *** model integrates the synthetic minority oversampling technique（SMOTE） to expand the data volume,the support vector machine（SVM） for model training,and the particle swarm optimization（PSO） algorithm for optimizing *** enhance the model performance,we conduct feature fusion and dimensionality ***,we examine the influences of different sample sizes and ML models for *** proposed model demonstrates higher prediction accuracy and generalization ability,achieving a predicted R2value of up to 0.9 for the test set,compared to the traditional ML techniques with an R2of *** model accurately predicts the production of fractured horizontal wells even with limited samples,supplying an efficient tool for optimizing the production of unconventional ***,the model holds the potential applicability to address similar challenges in other fields constrained by scarce data samples.
Particle-to-particle dry graphene coatings on Ni-rich layered oxide materials are proposed for highenergy lithium-ion batteries （LIBs） to mitigate the inherent and engineering challenges related to the electrochemic...
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Particle-to-particle dry graphene coatings on Ni-rich layered oxide materials are proposed for highenergy lithium-ion batteries （LIBs） to mitigate the inherent and engineering challenges related to the electrochemically fragile surfaces,as well as limiting electrode thickness and *** a shear stress-based coating process without supplementary solvent or heat treatment,graphene sheets derived from graphene powder are applied onto the surface of spherical LiNi0.89Co0.055Mn0.055O2（NCM） *** process achieves a coating thickness equivalent to or fewer than 10 layers of graphene and exposes the basal *** graphene-coated material increases particle hardness and mitigates degradation caused by inter-particle pressure,enabling the formation of high-density electrodes without *** the absence of additional carbon-conducting agents for the high-density composite electrode with a density of 4.0 g cm-3,it significantly enhances rate capability,demonstrating more than 5 times improvement by achieving 149.4 mAh g-1at 2 C compared to the bare sample (28.9 mAh g-1).Furthermore,the dry graphene coating enables the high areal capacity of 6.98 mAh *** exposing the basal plane of the graphene coating,the process enhances chemical stability,effectively inhibiting side reactions at the interface and mitigating cycle degradation.
The use of biodiesel mixtures has become a part of everyday life. The current implementation of B7 biodiesel at the pump and the premise that the near future will make B20 biodiesel compulsory leads to the necessity o...
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