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Hybrid SDS and WPT-IBBO-DNM Based Model for Ultra-short Term Photovoltaic Prediction

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CSEE Journal of Power and Energy Systems 2023年第1期9卷 66-76页

作者： Hui Hwang goh Qinwen Luo Dongdong Zhang Hui Liu Wei Dai chee Shen Lim Tonni Agustiono Kurniawan Kai Chen goh School of Electrical Engineering Guangxi UniversityNanningGuangxi 530004China University of Southampton Malaysia Iskandar Puteri 79200Malaysia College of the Environment and Ecology Xiamen UniversityFujian 361102China Department of Technology Management Faculty of Construction Management and BusinessUniversity Tun Hussein Onn Malaysia86400 Parit RajaJohorMalaysia

Accurate photovoltaic(PV)power prediction has been a subject of ongoing study in order to address grid stability concerns caused by PV output unpredictability and *** paper proposes an ultra-short-term hybrid photovoltaic power forecasting method based on a dendritic neural model(DNM)in this *** model is trained using improved biogeography-based optimization(IBBO),a technique that incorporates a domestication operation to increase the performance of classical biogeography-based optimization(BBO).To be more precise,a similar day selection(SDS)technique is presented for selecting the training set,and wavelet packet transform(WPT)is used to divide the input data into many *** is then used to train DNM weights and thresholds for each component ***,each component’s prediction results are stacked and *** suggested hybrid model is used to forecast PV power under various weather conditions using data from the Desert Knowledge Australia Solar Centre(DKASC)in Alice *** results indicate the proposed hybrid SDS and WPT-IBBO-DNM model has the lowest error of any of the benchmark models and hence has the potential to considerably enhance the accuracy of solar power forecasting(PVPF).

关键词： Dendritic neural model improved biogeography-based optimization photovoltaic power forecasting similar day selection wavelet packet transform

Reliability analysis of geotechnical infrastructures: Introduction

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Geoscience Frontiers 2018年第6期9卷 1595-1596页

作者： Wengang Zhang Anthony Teck chee goh School of Civil Engineering Chongqing University School of Civil and Environmental Engineering Nanyang Technological UniversitySingapore

In the design of geotechnical infrastructure,engineers have to deal with naturally occurring soils and rocks which are subjected to spatial variability as well as other uncertainties such as errors in measurement and in modeling *** assessment which provides a systematic approach for quantifying the risk of failure has been shown to be a promising tool for solving these challenging geotechnical engineering *** method provides a more consistent measure of the level of safety or“structural reliability”through the evaluation of a reliability index and the associated“failure”probability,and is a method that satisfies the need to clearly convey safety issues to the public and regulatory *** methods for calculating the reliability of geotechnical infrastructures with regard to the assessment of the ultimate and serviceability limit states have been proposed by many researchers and these approaches include:the direct Monte Carlo Simulation,Bayesian and other sampling techniques,the first-order reliability method and the second-order reliability method,the random field method,the response surface method and other surrogate models with the related probabilistic *** this special issue of Geoscience Frontiers,we assemble eleven invited papers which provide insights on the latest developments and challenges in applying probabilistic and reliability methods to geotechnical infrastructure design.

关键词： geotechnical infrastructure quantifying the risk of failure

Intracellular interferon signalling pathways as potential regulators of covalently closed circular DNA in the treatment of chronic hepatitis B

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World Journal of Gastroenterology 2021年第14期27卷 1369-1391页

作者： Zhi Yi goh Ee chee Ren Hui Ling Ko Singapore Immunology Network Agency for ScienceTechnology and ResearchSingapore 138648Singapore Integrative Sciences and Engineering Programme NUS Graduate SchoolNational University of SingaporeSingapore 119077Singapore Department of Microbiology and Immunology Yong Loo Lin School of MedicineNational University of SingaporeSingapore 119260Singapore

250 million people worldwide continue to be chronically infected with the *** patients may be treated with nucleoside/nucleotide analogues,this only suppresses HBV titre to sub-detection levels without eliminating the persistent HBV covalently closed circular DNA(cccDNA)*** a result,HBV infection cannot be cured,and the virus reactivates when conditions are ***(IFNs)are cytokines known to induce powerful antiviral mechanisms that clear viruses from infected *** have been shown to induce cccDNA clearance,but their use in the treatment of HBV infection is limited as HBVtargeting immune cells are exhausted and HBV has evolved multiple mechanisms to evade and suppress IFN ***,to fully utilize IFN-mediated intracellular mechanisms to effectively eliminate HBV,instead of direct IFN administration,novel strategies to sustain IFN-mediated anti-cccDNA and antiviral mechanisms need to be *** review will consolidate what is known about how IFNs act to achieve its intracellular antiviral effects and highlight the critical interferon-stimulated gene targets and effector mechanisms with potent anti-cccDNA *** include cccDNA degradation by APOBECs and cccDNA silencing and transcription repression by epigenetic *** addition,the mechanisms that HBV employs to disrupt IFN signalling will be *** that have been developed or are in the pipeline for components of the IFN signalling pathway and HBV targets that detract IFN signalling mechanisms will also be identified and discussed for utility in the treatment of HBV ***,these will provide useful insights into design strategies that specifically target cccDNA for the eradication of HBV.

关键词： Covalently closed circular DNA Interferons APOBECs Epigenetic modification Hepatitis B virus therapeutics

Attenuation of rock blasting induced ground vibration in rock-soil interface

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第4期11卷 770-778页

作者： Bhagya Jayasinghe Zhiye Zhao Anthony goh Teck chee Hongyuan Zhou Yilin Gui School of Civil and Environmental Engineering Nanyang Technological UniversitySingapore Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of TechnologyBeijingChina School of Civil Engineering and Geosciences Newcastle UniversityNewcastle upon TyneUK

Blasting has been widely used in mining and construction industries for rock *** paper presents the results of a series of field tests conducted to investigate the ground wave propagation through mixed geological *** tests were conducted at a site in the northwestern part of Singapore composed of residual soil and granitic *** field test aims to provide measurement data to better understand the stress wave propagation in soil/rock and along their *** accelerometers were used for the free field vibration *** measured results are presented and discussed,and empirical formulae for predicting peak particle velocity (PPV) attenuation along the ground surface and in soil/rock were derived from the measured ***,the ground vibration attenuation across the soil-rock interface was carefully examined,and it was found that the PPV of ground vibration was decreased by 37.2% when it travels from rock to soil in the vertical direction.

关键词： Rock blasting Field tests Blast wave propagation Peak particle velocity (PPV) Rock-soil interface

State-of-the-art review of soft computing applications in underground excavations

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Geoscience Frontiers 2020年第4期11卷 1095-1106页

作者： Wengang Zhang Runhong Zhang Chongzhi Wu Anthony Teck chee goh Suzanne Lacasse Zhongqiang Liu Hanlong Liu Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityMinistry of EducationChongqing 400045China National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas Chongqing UniversityChongqing 400045China School of Civil Engineering Chongqing UniversityChongqing 400045China School of Civil and Environmental Engineering Nanyang Technological University639798Singapore Department of Natural Hazards Norwegian Geotechnical Institute0806 OsloNorway

Soft computing techniques are becoming even more popular and particularly amenable to model the complex behaviors of most geotechnical engineering systems since they have demonstrated superior predictive capacity,compared to the traditional *** paper presents an overview of some soft computing techniques as well as their applications in underground excavations.A case study is adopted to compare the predictive performances of soft computing techniques including eXtreme Gradient Boosting(XGBoost),Multivariate Adaptive Regression Splines(MARS),Artificial Neural Networks(ANN),and Support Vector Machine(SVM) in estimating the maximum lateral wall deflection induced by braced *** study also discusses the merits and the limitations of some soft computing techniques,compared with the conventional approaches available.

关键词： Soft computing method(SCM) Underground excavations Wall deformation Predictive capacity

Barcelona Clinic Liver Cancer outperforms Hong Kong Liver Cancer staging of hepatocellular carcinoma in multiethnic Asians: Real-world perspective

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World Journal of Gastroenterology 2017年第22期23卷 4054-4063页

作者： James Weiquan Li Boon-Bee George goh Pik-Eu Chang chee-Kiat Tan Department of Gastroenterology and Hepatology Duke-NUS Medical School

AIM To compare the Barcelona Clinic Liver Cancer(BCLC) and Hong Kong Liver Cancer(HKLC) classification systems when applied to HCC patients from the largest tertiary-level centre in *** One thousand two hundred and seventy hepatocellular carcinoma(HCC) patients prospectively enrolled in a tertiary-level centre registry in Singapore since 1988 were studied. Patients were grouped into their respective BCLC and HKLC stages. Data such as demography, aetiology of HCC and type of treatment were collected. Survival data was based on census with the National Registry of Births and Deaths on 31 st October 2015. Statistical analyses were done using SPSS version 21(Chicago, IL, United States). Survival analyses were done by the Kaplan-Meier method. Differences in survival rates were compared using the log-rank *** The median age at presentation was 63 years(range 13-94); male 82.4%; Chinese 89.4%, Malay 7.1%, Indian, 2.8%. Hepatitis B was the predominant aetiology(75.0%; Hepatitis C 7.2%, Hepatitis B and C co-infection 3.8%, non-viral 14.0%). Both BCLC and HKLC staging systems showed good separation with overall log rank test confirming significant survival differences between stages in our cohort(P < 0.001). 206 out of the 240 patients(85.8%) assigned for curative treatment by the BCLC treatment algorithm received curative therapy for HCC [Stage 0 93.2%(68/73); Stage A 82.6%(138/167)]. In contrast, only 341/558(61.1%) patients received curative treatment despite being assigned for curative treatment by the HKLC treatment algorithm [Stage Ⅰ 72.7%(264/363); Stage Ⅱ 40.2%(66/164); Stage Va 35.5%(11/31)]. Patients who were assigned to curative treatment by HKLC but did not receive curative treatment had significantly poorer ECOG(P < 0.001), higher ChildPugh status(P < 0.001) and were older(median age 66 vs 61, P < 0.001) than those who received curative therapy. Median overall survival in patients assigned to curative treatment groups by BCLC and HKLC were

关键词： Hepatocellular 癌巴赛隆纳诊所肝癌症香港肝癌症阶段系统预后幸存

An Adjustable Pure Dispersion Slope Compensating-Module without Center Wavelength Shift Based on Strain-Chirped Fiber Bragg Gratings

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光学学报 2003年第S1期23卷 131-132页

作者： chee S. goh Sze Y. Set K. Kikuchi RCAST University of Tokyo 4-6-1 Komaba Meguro-ku Tokyo 153-8904 JapanAlnair Labs Corporation 6-3-14 Kawaguchi Kawaguchi city Saitama-ken 332-0015 JapanRCAST University of Tokyo 4-6-1 Komaba Meguro-ku Tokyo 153-8904 Japan Alnair Labs Corporation 6-3-14 Kawaguchi Kawaguchi city Saitama-ken 332-0015 Japan

We demonstrate an adjustable pure dispersion slope compensating-module based on strain-chirped fiber Bragg gratings. The center wavelength of the module is preserved while the pure dispersion slope is tuned.

关键词： FBG be on An Adjustable Pure Dispersion Slope Compensating-Module without Center Wavelength Shift Based on Strain-Chirped Fiber Bragg Gratings of in DS

Low serum albumin predicts early mortality in patients with severe hypoxic hepatitis

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World Journal of Hepatology 2017年第22期9卷 959-966页

作者： Pik-Eu Chang Boon-Bee George goh Victoria Ekstrom Ming-Liang Ong chee-Kiat Tan Department of Gastro enterology and Hepatology Singapore General Hospital Duke-NUS Medical School

AIM To evaluate the incidence, etiology, and predictors of mortality of severe hypoxic hepatitis. METHODS We used computerized patient records to identify consecutive cases of severe hypoxic hepatitis admitted to a tertiary hospital in Singapore over a one-year period. We defined severe hypoxic hepatitis as elevation of serum transaminases more than 100 times upper limit of normal in the clinical setting of cardiac, circulatory or respiratory failure after exclusion of other causes of hepatitis. We used multivariable regression analysis to determine predictors for mortality. RESULTS We identified 75 cases of severe hypoxic hepatitis out of 71380 hospital admissions over one year, providing an incidence of 1.05 cases per 1000 admissions. Median age was 65 years(range 19-88); 57.3% males. The most common etiologies of severe hypoxic hepatitis were acute myocardial infarction and sepsis. Fifty-three patients(71%) died during the hospitalization. The sole independent predictive factor for mortality was serum albumin measured at the onset of severe hypoxic hepatitis. Patients with low serum albumin of less than 28 g/L have more than five-fold increase risk of death(OR = 5.39, 95%CI: 1.85-15.71).CONCLUSION Severe hypoxic hepatitis is uncommon but has a high mortality rate. Patients with low serum albumin are at highest risk of death.

关键词：严重死亡白朊发生 Hypoxic 肝炎预言者病原学预后

Convalescent plasma: A potential therapeutic option for COVID-19 patients

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Asian Pacific Journal of Tropical Medicine 2020年第11期13卷 477-486页

作者： Swee Li Ng Tsuey Ning Soon Wei Hsum Yap Kai Bin Liew Ya chee Lim Long Chiau Ming Yin-Quan Tang Bey Hing goh Biofunctional Molecule Exploratory Research Group(BMEX) School of PharmacyMonash University MalaysiaBandar SunwayMalaysia School of Biosciences Faculty of Medical and Health SciencesTaylor’s UniversitySubang JayaSelangorMalaysia Faculty of Pharmacy University of CyberjayaCyberjayaSelangorMalaysia PAP Rashidah Sa'adatul Bolkiah Institute of Health Sciences Universiti Brunei DarussalamGadongBrunei Darussalam College of Pharmaceutical Sciences Zhejiang UniversityHangzhouP.R.China

The new coronavirus disease(COVID-19)outbreak has challenged us to take unprecedented steps to bring this pandemic under *** view of the urgency of this situation,convalescent plasma which was used in previous coronavirus outbreaks has emerged as one of the treatment options in this current *** is mainly due to the fact that convalescent plasma has been studied in a few case series with promising *** addition,on-going large clinical trials aimed to further evaluate the effectiveness,safety,and optimal dosage,duration and timing of administration of convalescent plasma are indeed revealing a certain level of promising ***,this article aims to provide an overview of possible mechanisms of actions of convalescent plasma,its benefits and its level of usage safeness by summarizing the existing evidence on the use of convalescent plasma in COVID-19 patients.

关键词： Coronavirus Convalescent plasma COVID-19 SARS-COV-2 Neutralizing antibody Immunomodulation Convalescent plasma transfusion