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Advancing Wound Filling Extraction on 3d Faces:An Auto-Segmentation and Wound Face Regeneration Approach

Computer Modeling in Engineering & Sciences 2024年第5期139卷 2197-2214页

作者： duong Q.nguyen Thinh d.Le Phuong d.nguyen Nga T.K.Le H.nguyen-Xuan department of Mathematics and Statistics Quy Nhon UniversityQuy Nhon City55100Viet Nam Applied Research Institute for Science and Technology Quy Nhon UniversityQuy Nhon City55100Viet Nam CIRTECH Institute HUTECH UniversityHo Chi Minh City72308Viet Nam

Facial wound segmentation plays a crucial role in preoperative planning and optimizing patient outcomes in various medical *** this paper,we propose an efficient approach for automating 3d facial wound segmentation using a two-stream graph convolutional *** method leverages the Cir3d-FaIR dataset and addresses the challenge of data imbalance through extensive experimentation with different loss *** achieve accurate segmentation,we conducted thorough experiments and selected a high-performing model from the *** selectedmodel demonstrates exceptional segmentation performance for complex 3d facial ***,based on the segmentation model,we propose an improved approach for extracting 3d facial wound fillers and compare it to the results of the previous *** method achieved a remarkable accuracy of 0.9999993% on the test suite,surpassing the performance of the previous *** this result,we use 3d printing technology to illustrate the shape of the wound *** outcomes of this study have significant implications for physicians involved in preoperative planning and intervention *** automating facial wound segmentation and improving the accuracy ofwound-filling extraction,our approach can assist in carefully assessing and optimizing interventions,leading to enhanced patient ***,it contributes to advancing facial reconstruction techniques by utilizing machine learning and 3d bioprinting for printing skin tissue *** source code is available at https://***/SIMOGroup/WoundFilling3d.

关键词： 3d printing technology face reconstruction 3d segmentation 3d printed model

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Effect of loading rate and time delay on the tangent modulus method(TMM)in coal and coal measured rocks

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International Journal of Coal Science & Technology 2022年第6期9卷 51-63页

作者： Zulfiqar Ali Murat Karakus Giang d.nguyen Khalid Amrouch School of Civil Environmental and Mining EngineeringUniversity of AdelaideAdelaideSA 5000Australia Australian School of Petroleum and Energy University of AdelaideAdelaideSA 5000Australia Geology&Sustainable Mining Mohammed VI Polytechnic University43150 BenguerirMorocco

Non-destructive techniques of in-situ stress measurement from oriented cored rocks have great potential to be developed as a cost cost-effective and reliable alternative to the conventional overcoring and hydraulic fracturing *** tangent modulus method(TMM)is one such technique that can be applied to oriented cored rocks to measure in-situ *** the deformation rate analysis(dRA),the rock specimen is subjected to two cycles of uniaxial compression and the stress-tangent modulus curve for the two cycles is obtained from the stress-strain curve.A bending point in the tangent modulus curve of the first cycle is observed,separating it from the tangent modulus curve of the second *** point of separation between the two curves is assumed to be the previously applied maximum stress.A number of experiments were conducted on coal and coal measured rocks(sandstone and limestone)to understand the effect of loading conditions and the time *** specimens were preloaded,and cyclic compressions were applied under three different modes of loading,four different strain rates,and time delays of up to one *** bending point in the stress-tangent modulus curves occurred approximately at the applied pre-stress levels under all three loading modes,and no effect of loading rate was observed on the bending points in ***,a clear effect of time delay was observed on the TMM,contradicting the dRA *** could be due to the sensitivity of TMM and the range of its applicability,all of which need further investigation for the in-situ stress measurement.

关键词： Tangent modulus method TMM deformation rate analysis dRA Time delay Strain rate

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Influence of deviatoric stress on rockburst occurrence:An experimental study

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International Journal of Mining Science and Technology 2018年第5期28卷 763-766页

作者： Thomas Bruning Murat Karakus Selahattin Akdag Giang d.nguyen david Goodchild School of Civil Environmental and Mining EngineeringThe University of AdelaideAdelaide 5005Australia OZ Minerals 2 Hamra DriveAdelaide AirportSA5950Australia

As mining delves deeper into the crust, it is necessary to investigate the complex rock responses associated with higher stress gradients. Therefore, it is essential to better understand the mechanisms associated with the rockburst phenomenon. However, due to the large-scale and difficult monitoring of real mining excavations, laboratory scale tests must be utilised to determine the conditions conducive to burst. To this end, this research focuses on the implementation of a new rockburst testing apparatus to replicate the stress conditions of a rock mass excavation at the time of bursting. This apparatus allows the determination of rockburst stresses and a relationship between deviatoric stress and in-situ pressure/depth. Using this relationship it is then possible to estimate the standardised stress levels for a certain rock type which might lead to rockburst occurrence. Furthermore, it is demonstrated that with increasing in-situ pressure, the likelihood(measured as a lower differential stress) and the extent(indicated by the increasing range of deviatoric stress) of rockburst increases. These findings provide valuable information about the conditions necessary for bursting in deep mining.

关键词： Rockburst test Hollow cylinder Hard rock In-situ stress

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Evaluation of the propensity of strain burst in brittle granite based on post-peak energy analysis

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Underground Space 2021年第1期6卷 1-11页

作者： Selahattin Akdag Murat Karakus Giang d.nguyen Abbas Taheri Thomas Bruning School of Civil Environmental and Mining EngineeringThe University of AdelaideAdelaideSAAustralia

The increasing demand for resources and depletion of near ground mineral resources caused deeper mining operations under highstress rock mass *** a result of this,strain burst,which is the sudden release of stored strain energy in the surrounding rock mass,has become more prevalent and created a considerable threat to workers and construction *** is,therefore,imperative to understand how strain burst mechanism and stored excess strain energy are affected due to the high confinement in deep underground *** this purpose,post-peak energy distributions for brittle rocks were investigated using a newly developed energy calculation method associated with acoustic emission(AE).A series of quasi-static uniaxial and triaxial compression tests controlled by the circumferential expansion were ***-back behaviour known as Class-II behaviour associated with energy evolution and the material response under self-sustaining failure were analysed on granites under a wide range of confining pressures(0–60 MPa).The experimental results underline that the energy evolution characteristics are strongly linked to *** elastic strain energy(dUE),energy consumed by dominating cohesion weakening(dUCW)and energy dissipated during mobilisation of frictional failure(dUFM)showed a rising trend as the confining pressure was *** intrinsic ejection velocity was proposed to express the propensity of strain burst that was purely determined by the excess strain energy released from Class II rock.

关键词： Strain burst Energy balance Class II failure mode Self-sustaining failure Triaxial compression test Circumferential strain control

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Insecticide toxicity associated with detoxification enzymes and genes related to transcription of cuticular melanization among color morphs of Asian citrus psyllid

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Insect Science 2019年第5期26卷 843-852页

作者： Xue dong Chen Torrence A. Gill Chi d.nguyen Nabil Killiny Kirsten S.Pelz-Stelinski Lukasz L.Stelinski Entomology and Nematology department Citrus Research and Education CenterUniversity of FloridaLake AlfredFloridaUSA Environmental Horticulture department Mid-Florida Research and Education CenterUniversity of FloridaApopkaFloridaUSA Plant Pathology department Citrus Research and Education CenterUniversity of FloridaLake AlfredFloridaUSA

The Asian citrus psyllid (diaphorina citri Kuwayama) is known to exhibit abdominal color polymorphisms. In the current study, susceptibility to four insecticides was compared among orange/yellow, blue/green and gray/brown color morphs of field collected d. citri. The Ld50 values and 95% fiducial limits were quantified for each insecticide and color morph combination and ranged between 0.10 ng/μL (0.06-0.10) and 6.16 ng//μL (3.30-12.50). Second, we measured the detoxification enzyme activity levels of orange/yellow, blue/green and gray/brown color morphs for cytochrome P450, glutathione "S-transferase, and general esterase. The mean P450 activity (equivalent units) was significantly lower in gray/brown (0.152 ± 0.006) and blue/green morphs (0.149 ± 0.005) than in the orange/yellow morphs (0.179 ± 0.008). GST activity (/imol/min/mg protein) was significantly lower in the orange/yellow morph (299.70 ± 1.24) than gray/brown (350.86 ± 1.19) and blue/green (412.25 ±1.37) morphs. The mean EST activity (/xmol/min/mg protein) was significantly higher in blue/green (416.72±5.12) and gray/brown morphs (362.19 ± 4.69) than in the orange/yellow morphs (282.56 ± 2.93). Additionally, we analyzed the relative expression of assortment genes involved in cuticular melanization and basal immunity. The transcripts of dopa decarboxylase and Tyrosine Hydroxylase were expressed higher in blue/green and gray/brown than orange/yellow morphs. The transcription results paralleled the susceptibility of *** to organophosphate, neonicotinoid and pyrethroid insecticides. GST and EST activity may also be correlated with low levels of insecticide susceptibility. Cuticular melanization could be a factor for the development of resistance to insecticides among different color morphs.

关键词： cuticular melanization cytochrome P450 esterase gene expression glutathione .S-transferase insecticide susceptibility

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State-of-the-art and future directions of machine learning for biomass characterization and for sustainable biorefinery

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Journal of Energy Chemistry 2023年第6期81卷 42-63,I0003页

作者： Aditya Velidandi Pradeep Kumar Gandam Madhavi Latha Chinta Srilekha Konakanchi Anji reddy Bhavanam Rama Raju Baadhe Minaxi Sharma James Gaffey Quang d.nguyen Vijai Kumar Gupta Integrated Biorefinery Research Laboratory Department of BiotechnologyNational Institute of TechnologyWarangalTelangana 506004India Stem cell research laboratory Department of BiotechnologyNational Institute of TechnologyWarangalTelangana 506004India department of Biotechnology Chaitanya University(Deemed to be University)WarangalTelangana 506001India department of Chemical Engineering Dr.B.R.Ambedkar National Institute of Technology JalandharPunjab 144027India Haute Ecole Provinciale de Hainaut-Condorcet 7800 ATHBelgium department of Applied Biology University of Science and TechnologyMeghalaya 793101India Circular Bioeconomy Research Group Shannon Applied Biotechnology CentreMunster Technological UniversityKerryIreland department of Bioengineering and Alcoholic drink Technology Institute of Food Science and TechnologyHungarian University of Agriculture and Life SciencesH-1118 BudapestḾenesiút 45Hungary Biorefining and Advanced Materials Research Center SRUCKings BuildingsWest Mains RoadEdinburgh EH93JGUK department of Biotechnology Graphic Era Deemed to be UniversityDehradun 248002UttarakhandIndia

Machine learning(ML)has emerged as a significant tool in the field of biorefinery,offering the capability to analyze and predict complex processes with *** article reviews the current state of biorefinery and its classification,highlighting various commercially successful ***,we delve into different categories of ML models,including their algorithms and applications in various stages of biorefinery lifecycle,such as biomass characterization,pretreatment,lignin valorization,chemical,thermochemical and biochemical conversion processes,supply chain analysis,and life cycle *** benefits and limitations of each of these algorithms are discussed in ***,the article concludes with a discussion of the limitations and future prospects of ML in the field of biorefineries.

关键词： Biofuel Biomass characterization Biorefinery Life cycle assessment Machine learning Pretreatment

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Indirect traumatic optic neuropathy

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Journal of Medical Colleges of PLA(China) 2016年第2期31卷 87-92页

作者： Eric L.Singman Nitin daphalapurkar Helen White Thao d.nguyen Lijo Panghat Jessica Chang Timothy McCulley Wilmer Eye Institute at Johns Hopkins Hospital BaltimoreMarylandUSA Whiting School of Engineering Johns Hopkins UniversityBaltimoreMDUSA Walter Reed National Military Medical Center BethesdaMDUSA

Indirect traumatic optic neuropathy(ITON) refers to optic nerve injury resulting from impact remote to the optic nerve. The mechanism of injury is not understood, and there are no confirmed protocols for prevention, mitigation or treatment. Most data concerning this condition comes from case series of civilian patients suffering blunt injury, such as from sports- or motor vehicle-related concussion, rather than military-related ballistic or blast damage. Research in this field will likely require the development of robust databases to identify patients with ITON and follow related outcomes, in addition to both in-vivo animal and virtual human models to study the mechanisms of damage and potential therapies.

关键词： Indirect trauma Optic nerve Blunt Blast Neuropathy Biomechanics Virtual model

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Experimental Study of a Modified Command Governor Adaptive Controller for depth Control of an Unmanned Underwater Vehicle

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Journal of Marine Science and Application 2021年第3期20卷 504-523页

作者： Charita d.Makavita Shantha G.Jayasinghe Hung d.nguyen dev Ranmuthugala Australian Maritime College University of TasmaniaLauncestonTasmania 7250Australia department of Mechanical Engineering University of Sri JayewardenepuraRatmalana 10390Sri Lanka

Command governor–based adaptive control(CGAC)is a recent control strategy that has been explored as a possible candidate for the challenging task of precise maneuvering of unmanned underwater vehicles(UUVs)with parameter *** is derived from standard model reference adaptive control(MRAC)by adding a command governor that guarantees acceptable transient performance without compromising stability and a command filter that improves the robustness against noise and time *** simulation and experimental studies have shown substantial overall performance improvements of CGAC over MRAC for UUVs,it has also shown that the command filter leads to a marked reduction in initial tracking performance of *** a solution,this paper proposes the replacement of the command filter by a weight filter to improve the initial tracking performance without compromising robustness and the addition of a closed-loop state predictor to further improve the overall tracking *** new modified CGAC(M-CGAC)has been experimentally validated and the results indicate that it successfully mitigates the initial tracking performance reduction,significantly improves the overall tracking performance,uses less control force,and increases the robustness to noise and time ***,M-CGAC is a viable adaptive control algorithm for current and future UUV applications.

关键词： Command governor adaptive control Measurement noise Time delay Transient tracking Unmanned underwater vehicles Robustness

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In situ neutron diffraction unravels deformation mechanisms of a strong and ductile Fe Cr Ni medium entropy alloy

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Journal of Materials Science & Technology 2022年第21期116卷 103-120页

作者： L.Tang F.Q.Jiang J.S.Wróbel B.Liu S.Kabra R.X.duan J.H.Luan Z.B.Jiao M.M.Attallah d.nguyen-Manh B.Cai School of Metallurgy and Materials University of BirminghamB152TTUnited Kingdom Institute of Metal Research Chinese Academy of SciencesShenyang 110016China Faculty of Materials Science and Engineering Warsaw University of Technologyul.Wołoska 141Warsaw 02-507Poland State Key Laboratory for Powder Metallurgy Central South UniversityChangsha 410083China Rutherford Appleton Laboratory ISIS FacilityDidcot OX110QXUnited Kingdom department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina department of Mechanical Engineering The Hong Kong Polytechnic UniversityHung HomHong KongChina CCFE United Kingdom Atomic Energy AuthorityAbingdonOxfordshire OX143DBUnited Kingdom

We investigated the mechanical and microstructural responses of a high-strength equal-molar medium entropy FeCrNi alloy at 293 and 15 K by in situ neutron diffraction *** 293 K,the alloy had a very high yield strength of 651±12 MPa,with a total elongation of 48%±5%.At 15 K,the yield strength increased to 1092±22 MPa,but the total elongation dropped to 18%±1%.Via analyzing the neutron diffraction data,we determined the lattice strain evolution,single-crystal elastic constants,stacking fault probability,and estimated stacking fault energy of the alloy at both temperatures,which are the critical parameters to feed into and compare against our first-principles calculations and dislocation-based slip system *** density functional theory calculations show that the alloy tends to form shortrange order at room ***,atom probe tomography and atomic-resolution transmission electron microscopy did not clearly identify the short-range ***,at 293 K,experimental measured single-crystal elastic constants did not agree with those determined by first-principles calculations with short-range order but agreed well with the values from the calculation with the disordered configuration at 2000 *** suggests that the alloy is at a metastable state resulted from the fabrication *** view of the high yield strength of the alloy,we calculated the strengthening contribution to the yield strength from grain boundaries,dislocations,and lattice *** lattice distortion contribution was based on the Varenne-Luque-Curtine strengthening theory for multi-component alloys,which was found to be 316 MPa at 293 K and increased to 629 MPa at 15 K,making a significant contribution to the high yield *** plastic deformation,dislocation movement and multiplication were found to be the dominant hardening mechanism at both temperatures,whereas twinning and phase transformation were not *** is mainly due to the high stack

关键词： Medium entropy alloy Multi-component alloy Cryogenic temperature Neutron diffraction

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discovery of tanshinone derivatives with anti-MRSA activity via targeted bio-transformation

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Synthetic and Systems Biotechnology 2016年第3期1卷 187-194页

作者： Wenni He Miaomiao Liu Pei Huang Wael M.Abdel-Mageed Jianying Han Jeramie d.Watrous don d.nguyen Wenzhao Wang Fuhang Song Huanqin dai Jingyu Zhang Ronald J.Quinn Tanja Grkovi Houwei Luo Lixin Zhang Xueting Liu Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China department of Chemistry&Biochemistry University of California San DiegoLa JollaCA 92093United States department of Pharmacognosy College of PharmacyKing Saud UniversityRiyadh 11451Saudi Arabia department of Pharmacognosy Faculty of PharmacyAssiut UniversityAssiut 71526Egypt department of Natural Products China Pharmaceutical UniversityNanjing 210009China Graduate University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijingChina Eskitis Institute Griffith UniversityBrisbaneQLD 4111Australia

Two potent anti-MRSA tanshinone glycosides(1 and 2)were discovered by targeted microbial biotransformation,along with rapid identification via MS/MS *** reactions including dehydrogenation,demethylations,reduction,glycosylation and methylation have been observed after incubation of tanshinone IIA and fungus Mucor rouxianus AS *** addition,tanshinosides B(2)showed potent activities against serial clinical isolates of oxacillin-resistant Staphylococcus aureus with MIC values of 0.78 mg/*** is the first study that shows a significant increase in the level and activities of tanshinone glycosides relative to the substrate tanshinone IIA.

关键词： Biotransformation Glycosylation Tanshinone IIA Mucor rouxianus

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