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| 1 | BRIEF INTRODUCTION TO SYNERGIZED STANDARD OPERATING PROCEDURES FOR COASTAL MULTI-HAZARDS EARLY WARNING SYSTEM显示文摘The most countries surrounding the Indian Ocean as well as Southeast Asian countries do not have operational experience in handling a combination of tsunami and other coastal hazard early warning systems.The challenge faced by warning providers,media,disaster managers,and coastal communities is in understanding the similarities and differences among different coastal hazards and the characteristics of the early warnings that are issued.There is a strong need to create synergies among different types of coastal hazard early warnings by reviewing the relevant existing standard operating procedures.These synergies can be achieved through identifying specific gaps and needs for making the existing early warning systems fully operational for the use in multi-hazards context.The project of Synergized Standard Operating Procedures for Coastal Multi-Hazards Early Warning System(SSOP) was proposed by Typhoon Committee Secretariat with the objectives of developing the SSOP Manual/Handbook and establishing the cooperation mechanism on coastal multi-hazard early warning among the target countries.The project will mainly focus on the meteorological and hydrological services for affected areas which become more vulnerable to natural disasters after tsunami and other costal disasters.The synergized standard operating procedure should be easier understandable and interpretable for decision makers,forecasters and dwellers. | OLAVO RASQUINHO DEREK LEONG JINPING LIU | 2012 | Tropical Cyclone Research and Review2012，1，4： | 5 |
| 2 | ASSESSMENT ON DISASTER RISK REDUCTION OF TROPICAL STORM WA SHI显示文摘In December,2011,the world’s second most deadly disaster of the year,Tropical Storm Washi(known as Sendong in the Philippines)landed along the east coast of Mindanao,Philippines,causing 1,292 deaths,1,049 missing,2,002 injured,and total 695,195 people(110,806 families)affected.This paper introduced briefly the hydro-meteorological characteristics of Washi,and assessed its devastating impacts on society and economy,and the response and recovery taken by the Philippines government during the whole period of Washi.Based on the assessment of impact of disaster,the paper indicated the gaps and needs on aspects of DRR actions and identified the future challenges on typhoon related disaster preparedness and reduction in the Philippines.Finally,the report provided the recommendations within the framework of the activities of Typhoon Committee to improve and enhance the capacity building on typhoon related disaster reduction in the Philippines. | Olavo Rasquinho Jinping Liu Derek Leong | 2013 | Tropical Cyclone Research and Review2013，2，3： | 3 |
| 3 | Hepatitis B surface antigen escape mutations: Indications for initiation of antiviral therapy revisited显示文摘Approximately 240 million people are chronically infected with hepatitis B. The implementation of rigorous vaccination programs has led to an overall decrease in the prevalence of this disease worldwide but this may also have led to emergence of viral mutations that can escape the protection of hepatitis B surface antibody. As this phenomenon is increasingly recognized, concern for transmission to vaccinated individuals has also been raised. Herein, we describe two cases where the suspected presence of a hepatitis B surface antigen escape mutation impacted the decision to initiate early antiviral therapy, as well as provide a brief review of these mutations. Our findings described here suggest that a lower threshold for initiating therapy in these individuals should be considered in order to reduce the risk of transmission, as vaccination does not provide protection. | Jennifer Leong Derek Lin Mindie H Nguyen | 2016 | World Journal of Clinical Cases2016，4，3： | 2 |
| 4 | hale gas reservoir modeling and production evaluation considering complex gas transport mechanisms and dispersed distribution of kerogen显示文摘Stimulated shale reservoirs consist of kerogen,inorganic matter,secondary and hydraulic fractures.The dispersed distribution of kerogen within matrices and complex gas flow mechanisms make production evaluation challenging.Here we establish an analytical method that addresses kerogen-inorganic matter gas transfer,dispersed kerogen distribution,and complex gas flow mechanisms to facilitate evaluating gas production.The matrix element is defined as a kerogen core with an exterior inorganic sphere.Unlike most previous models,we merely use boundary conditions to describe kerogen-inorganic matter gas transfer without the instantaneous kerogen gas source term.It is closer to real inter-porosity flow conditions between kerogen and inorganic matter.Knudsen diffusion,surface diffusion,adsorption/desorption,and slip corrected flow are involved in matrix gas flow.Matrix-fracture coupling is realized by using a seven-region linear flow model.The model is verified against a published model and field data.Results reveal that inorganic matrices serve as a major gas source especially at early times.Kerogen provides limited contributions to production even under a pseudo-steady state.Kerogen properties’influence starts from the late matrix-fracture inter-porosity flow regime,while inorganic matter properties control almost all flow regimes except the early-mid time fracture linear flow regime.The contribution of different linear flow regions is also documented. | Jie Zeng Jishan Liu Wai Li Yee-Kwong Leong Derek Elsworth Jianchun Guo | 2021 | Petroleum Science2021，18，1： | 1 |
| 5 | Transit-Time Flow Measurement is Essential in Coronary Artery Bypass Grafting显示文摘 | Derek K.H. Leong Venkataraman Ashok Arulkumaran Nishkantha Yue Hong Shan Eugene K.W. Sim | 2005 | The Annals of Thoracic Surgery2005，，3： | 1 |
| 6 | Effect of non-uniform swelling on coal multiphysics during gas injection: The triangle approach显示文摘In current dual porosity/permeability models,there exists a fundamental assumption that the adsorption-induced swelling is distributed uniformly within the representative elementary volume (REV),irrespective of its internal structures and transient processes.However,both internal structures and transient processes can lead to the non-uniform swelling.In this study,we hypothesize that the non-uniform swelling is responsible for why coal permeability in experimental measurements is not only controlled by the effective stress but also is affected by the adsorption-induced swelling.We propose a concept of the swelling triangle composed of swelling paths to characterize the evolution of the non-uniform swelling and serve as a core link in coupled multiphysics.A swelling path is determined by a dimensionless volumetric ratio and a dimensionless swelling ratio.Different swelling paths have the same start and end point,and each swelling path represents a unique swelling case.The swelling path as the diagonal of the triangle represents the case of the uniform swelling while that as the two perpendicular boundaries represents the case of the localized swelling.The paths of all intermediate cases populate inside the triangle.The corresponding relations between the swelling path and the response of coal multiphysics are established by a non-uniform swelling coefficient.We define this method as the triangle approach and corresponding models as swelling path-based ones.The proposed concept and models are verified against a long-term experimental measurement of permeability and strains under constant effective stress.Our results demonstrate that during gas injection,coal multiphysics responses have a close dependence on the swelling path,and that in both future experiments and field predictions,this dependence must be considered. | Yifan Huang Jishan Liu Yaoyao Zhao Derek Elsworth Yee-Kwong Leong | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024，16，4： | 0 |
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