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Forecasting measured responses of structures using temporal deep learning and dual attention

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Frontiers of Structural and Civil Engineering 2024年第6期18卷 832-850页

作者： Viet-Hung dang Trong-Phu nguyen Thi-Lien PHAM Huan X.nguyen Department of Structural Mechanics Hanoi University of Civil EngineeringHanoi 11600Vietnam Faculty of Applied Science University of Economics-Technology for IndustriesHanoi 11600Vietnam London Digital Twin Research Centre Faculty of Science and TechnologyMiddlesex UniversityLondon NW44BTUK International School Vietnam National UniversityHanoi 11600Vietnam

The objective of this study is to develop a novel and efficient model for forecasting the nonlinear behavior of structures in response to time-varying random *** key idea is to design a deep learning architecture to leverage the relationships,between external excitations and structure's vibration signals,and between historical values and future values,within multiple time-series *** proposed method consists of two main steps:the first step applies a global attention mechanism to combine multiple-measured time series and time-varying excitation into a weighted time series before feeding it to a temporal architecture;the second step utilizes a self-attention mechanism followed by a fully connected layer to predict multi-step future *** viability of the proposed method is demonstrated via two case studies involving synthetic data from a three-dimensional(3D)reinforced concrete structure and experimental data from an 18-story steel ***,comparison and robustness studies are carried out,showing that the proposed method outperforms conventional methods and maintains high performance in the presence of noise with an amplitude of less than 10%.

关键词： structural dynamic time-varying excitation deep learning signal processing response forecasting

Clinical Case Report of Acute Heart Injury and Acute Rhabdomyolysis due to Cyanide Poisoning

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Open Journal of Emergency Medicine 2024年第2期12卷 29-32页

作者： nguyen dang duc nguyen Phuong Sinh Lam nguyen Hong Anh Poison Control Center of Bach Mai Hospital Hanoi Vietnam Thai nguyen Medicine and Pharmacy University Thai Nguyen Vietnam

Cyanide poisoning is one of the most dangerous poisonings, and it can be absorbed into the body through the mouth, inhalation and through the skin. A 32-year-old female patient was admitted to our poison control center because of high fever, severe vomiting, and seizures. Physical examination found that the patient was drowsy, had a high fever of 40 degrees Celsius, pulse of 140 beats/minute, and increased tendon and bone reflexes. Exploiting the patient’s information, it was discovered that the patient bought Cyanide to drink with the intention of committing suicide. The patient was quickly treated with gastric lavage and activated charcoal. Echocardiography recorded EF: 35%, reduced movement of the entire myocardium. CK blood test: 4562 U/L. The patient’s condition rapidly deteriorated and the patient was made ECMO, IHD and CVVHDF. After 3 days of treatment, the patient’s condition did not improve, so the family asked for the patient to go home. This article aims to describe the rapidly progressing and severe damage to the heart and muscles of patients with cyanide poisoning.

关键词： Cyanide Poisoning Acute Heart Injury Acute Rhabdomyolysis

Exponentially Bounded C-semigroup and the Cauchy Initial Value Problems in Complete Random Normed Modules

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Acta Mathematica Sinica,English Series 2024年第9期40卷 2195-2212页

作者： Son TA CONG Thang dang HUNG Oanh Le THI Department of Mathematics University of ScienceVietnam National University 334 Nguyen TraiThanh XuanHanoiVietnam Faculty of Natural Sciences Hong Duc University565 Quang TrungDong VeThanh HoaVietnam

In this paper,the notion of C-semigroup of continuous module homomorphisms on a complete random normal(RN)module is introduced and *** existence and uniqueness of solution to the Cauchy problem with respect to exponen... 详细信息

关键词： C-semigroup Cauchy problem random normed modules L^(0)-Lipschitz

Is convenience really king? Comparative evaluation of catastrophic costs due to tuberculosis in the public and private healthcare sectors of Viet Nam: a longitudinal patient cost study

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贫困所致传染病(英文) 2024年第2期13卷 17-28页

作者： nguyen Hoa Binh Quang Vo Luan nguyen Forse Rachel Jeanette Wiemers Anja Maria Christine Huynh Huy Ba Dong Thuy Thi Thu Phan Yen Thi Hoang Creswell Jacob dang Thi Minh Ha nguyen Lan Huu Shedrawy Jad L?nnroth Knut nguyen Tuan Dinh Van Dinh Luong Annerstedt Kristi Sidney Codlin Andrew James National Lung Hospital Ha Noi Viet Nam Friends for International TB Relief Ha Noi Viet Nam Department of Global Public Health WHO Collaboration Centre On Tuberculosis and Social Medicine Karolinska Institute Stockholm Sweden Stop TB Partnership Geneva Switzerland Pham Ngoc Thach Hospital Ho Chi Minh City Viet Nam

Background In Viet Nam, tuberculosis (TB) represents a devastating life-event with an exorbitant price tag, partly due to lost income from daily directly observed therapy in public sector care. Thus, persons with TB may seek care in the private sector for its flexibility, convenience, and privacy. Our study aimed to measure income changes, costs and catastrophic cost incurrence among TB-affected households in the public and private *** Between October 2020 and March 2022, we conducted 110 longitudinal patient cost interviews, among 50 patients privately treated for TB and 60 TB patients treated by the National TB Program (NTP) in Ha Noi, Hai Phong and Ho Chi Minh City, Viet Nam. Using a local adaptation of the WHO TB patient cost survey tool, participants were interviewed during the intensive phase, continuation phase and post-treatment. We compared income levels, direct and indirect treatment costs, catastrophic costs using Wilcoxon rank-sum and chi-squared tests and associated risk factors between the two cohorts using multivariate *** The pre-treatment median monthly household income was significantly higher in the private sector versus NTP cohort (USD 868 vs USD 578;P=0.010). However, private sector treatment was also significantly costlier (USD 2075 vs USD 1313;P=0.005), driven by direct medical costs which were 4.6 times higher than costs reported by NTP participants (USD 754 vs USD 164;Pduring treatment (aOR=10.86; 95%CI: 2.64–44.60;P<0.001) and experiencing TB-related stigma (aOR=37.90; 95%CI: 1.72–831.73;P=0.021).Conclusions Persons with TB in Viet Nam face similarly high risk of catastrophic costs whether treated in the

关键词： Tuberculosis Patient cost Catastrophic cost Private sector Comparative analysis Viet Nam

Effect of Freeze-Thaw and Urea in Solubility of GPC3-Csub Protein Expressed in Escherichia coli

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Journal of Biosciences and Medicines 2024年第4期12卷 288-297页

作者： Xuan-Truc Chu-Dao Kim-Tuyen Huynh-Dam dang-Thuc Ngo-Luong Quang-Luan Le Thanh-Thao Vo-nguyen Department of Medical Biotechnology Biotechnology Center of Ho Chi Minh City Ho Chi Minh City Vietnam

Glypican-3 is a protein encoded by the Glypican-3 gene located on human X chromosome (Xq26), composed of two subunits, a 40 kDa N-terminal subunit, and a 30 kDa C-terminal subunit. Glypican-3 is a currently potential target molecule for liver cancer treatments because of its over-expression and growth effects on hepatocellular carcinoma (HCC). This study examined the expression and purification of a C-terminal subunit of Glypican-3 protein (GPC3-Csub) due to its application in both diagnosis and therapy for hepatocellular carcinoma. The gene encoding for GPC3-Csub was successfully cloned into plasmid pET28a fused with an affinity tag composed of six consecutive histidine residues (His-tag). Recombinant protein GPC3-Csub was expressed in Escherichia coli BL21 (DE3) in the condition of adding 3% ethanol with IPTG induction. GPC3-Csub was extracted using repeated freeze-thaw cycles with lysozyme, and inclusion bodies were solubilized by 8M Urea, SDS 10% in pH 12. His-tag fused GPC3-Csub proteins allowed it to be purified by affinity chromatography method using the Nickel-nitrilotriacetic acid (Ni-NTA) column. High expression of GPC3-Csub was confirmed by Coomassie staining and western-blot. GPC3-Csub could be isolated with a Ni-NTA column and have a purity of about 90%.

关键词： Glypican-3 Affinity Chromatography Inclusion Body Liver Cancer

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糯玉米品种斯达糯46在越南的试种表现

现代农业科技 2024年第11期 19-23,27页

作者：章忠贵朱守晶 nguyen Pham Hung dang Cao Cuong 江明山李新燕华中农业大学湖北武汉430070 安徽科技学院农学院安徽凤阳233100 越南太平种子股份公司越南太平33000 北京中农斯达农业科技开发有限公司北京101500

为明确糯玉米优质品种斯达糯46在越南种植的适应性,将该品种种植于越南红河三角洲地区,以越南主栽品种HN88为对照,对其生育期、农艺性状、抗性、食味品质等进行鉴定和评价。结果表明,斯达糯46生育进程与对照HN88相似;农艺性状方面,斯达... 详细信息

为明确糯玉米优质品种斯达糯46在越南种植的适应性,将该品种种植于越南红河三角洲地区,以越南主栽品种HN88为对照,对其生育期、农艺性状、抗性、食味品质等进行鉴定和评价。结果表明,斯达糯46生育进程与对照HN88相似;农艺性状方面,斯达糯46穗位株高比优于对照HN88,抗倒伏能力强;抗病虫害方面,斯达糯46对螟虫、大斑病、小斑病、茎腐病、矮花叶病、穗腐病有良好的抗性;果穗性状方面,斯达糯46的双穗率、穗长、穗粗、穗行数、穗粒数均高于对照HN88,千粒重较对照HN88高13.3%;产量表现方面,斯达糯46的鲜穗产量较对照HN88显著增加20.9%,籽粒产量较对照HN88增加17.8%;品质评分与对照HN88接近。综合以上结果,种植于越南的斯达糯46表现了良好的气候适应性,在产量、抗性、品质、植株性状等方面表现突出,有良好的推广价值。

关键词：糯玉米斯达糯46 产量适应性越南

Clinical Case Report of Acute Heart Injury and Acute Rhabdomyolysis due to Cyanide Poisoning

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Thermal Performance Prediction in the Air Gap of a Rotor-Stator Configuration: Effects of Numerical Models

Open Journal of Emergency Medicine（急诊医学） 2024年第2期 29页

作者： nguyen dang duc nguyen Phuong Sinh Lam nguyen Hong Anh

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Journal of Thermal Science 2020年第1期29卷 206-218页

作者： dang Dinh-Dong PHAM Xuan-Tan nguyen Chi-Cong Department of Mechanical Engineering École de technologie supérieureMontrealQCCanada Hydro-Québec’s research institute VarennesQCCanada

This study is dedicated to a numerical investigation of convective heat transfer on the rotor surfaces of a rotor-stator configuration that is typically found in large *** computational fluid dynamics calculations with two turbulence modelling approaches are used to predict the flow structure and heat transfer in the air gap of the rotor-stator *** steady state mixing plane approach is employed at the interface to couple the rotor and stator *** show that the location of mixing plane interface in the air gap plays an important role in the prediction of heat transfer on the pole ***,it is indicated that the prediction of temperature distribution on the pole face is greatly affected by the turbulence models ***,through a comparison between the pure convective and conjugate heat transfer methodologies,it is shown that the inclusion of solid domain into the numerical model significantly improves the thermal prediction of the solid components of the machine.

关键词： hydro-generators electrical cooling mixing plane windage loss conjugate heat transfer

Effect of yttrium on corrosion behavior of extruded AZ61 Mg alloy

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Journal of Magnesium and Alloys 2016年第1期4卷 44-51页

作者： Li Li nguyen dang Nam Institute of Advanced Manufacturing Technology Hunan Institute of TechnologyHengyangHunan Province 421002China Institute for Frontier Materials Deakin UniversityGeelong Waurn Ponds CampusVictoria 3220Australia

The corrosion behavior of extruded AZ61 magnesium alloy with different addition of yttrium ranging from 0 to 0.9 wt.%was *** electrochemical techniques in naturally-aerated 0.01 M NaCl solution and the surface analyses are *** electrochemical results show that the pitting potential,time to pitting initiation,film and charge transfer resistances of the AZ61 specimens increased with the increase of yttrium *** analyses indicate that yttrium promotes the formation of passive films and the refinement of the precipitates and matrix grains.

关键词： Magnesium alloy Polarization Alkaline corrosion Pitting corrosion