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Inverse design of two-dimensional materia.s.with invertible neural networks

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npj Computational Materials 2021年第1期7卷 1822-1830页

作者： Victor fung Jiaxin Zhang Guoxiang Hu P.Ganesh Bobby G.sumpter Center for Nanophase Materia.s.sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Computer science and Mathematics Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Department of Chemistry and Biochemistry Queens College of the City University of New YorkQueensNY 11367USA

The ability to readily design novel materia.s.with chosen functional properties on-demand represents a next frontier in materia.s.***,thoroughly and efficiently sampling the entire design space in a computationally tractable manner remains a highly challenging *** tackle this problem,we propose an inverse design framework(MatDesINNe)utilizing invertible neural networks which can map both forward and reverse processes between the design space and target *** approach can be used to generate materia.s.candidates for a designated property,thereby satisfying the highly sought-after goal of inverse *** then apply this framework to the task of band gap engineering in two-dimensional materia.s.starting with Mos_(2).Within the design space encompa.s.ng six degrees of freedom in applied tensile,compressive and shear strain plus an external electric field,we show the framework can generate novel,high fidelity,and diverse candidates with near-chemical *** extend this generative capability further to provide insights regarding metal-insulator tra.s.tion in Mos_(2)which are important for memristive neuromorphic applications,among *** approach is general and can be directly extended to other materia.s.and their corresponding design spaces and target properties.

关键词： properties inverse satisfying

Prevention of recurrent hepatitis B infection after liver tra.s.lantation

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Hepatobiliary & Pancreatic Diseases International 2013年第5期12卷 465-472页

作者： Tiffany CL Wong James YY fung Chung Mau Lo Department of surgery Queen Mary Hospital The University of Hong Kong102 Pokfulam Road Department of Medicine Queen Mary Hospital The University of Hong Kong102 Pokfulam Road

BACKGROUND:Recurrence of hepatitis B virus(HBV) infection after liver tra.s.lantation can lead to graft loss and a reduction in long-term *** purpose of this review is to summarize the current therapeutic options for preventing HBV recurrence in liver tra.s.lant *** sOURCEs:Up to January 2013,studies that were published in MEDLINE and EMBAsE on prevention of HBV recurrence after liver tra.s.lantation were ***:There have been remarkable advancements in the past two decades on the prevention of HBV recurrence after liver tra.s.lantation,from the discovery of hepatitis B immune globulin(HBIG) and lamivudine monotherapy to the combination therapy using HBIG and *** the development of newer and stronger antiviral agents,the need for life-long HBIG is *** their low resistance profile,oral antiviral prophylaxis using these new agents alone is sufficient and is a.s.ciated with excellent ***:Restoration of host HBV immunity with adoptive immunity tra.s.er and vaccination may represent the ultimate strategy to withdraw prophylactic treatment and to achieve a drug free regimen against HBV recurrence after liver tra.s.lantation.

关键词： hepatitis B liver tra.s.lantation hepatitis B immune globulin antiviral therapy adoptive immunity tra.s.er HBV vaccination

Duplex kidneys and the risk of urinary tract infection in children

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World Journal of Pediatrics 2022年第2期18卷 144-146页

作者： Chon In Kuok Wun fung Hui Winnie Kwai Yu Chan Department of Paediatrics Queen Elizabeth Hospital30 Gascoigne RoadKowloonHong KongChina

Duplex kidney,a.s. known as duplicated kidney or renal duplication,is a form of congenital anomaly of kidney and urinary tract(CAKUT)characterized by the presence of two pelvicalyceal systems,dividing a kidney into up... 详细信息

关键词： kidney Duplex urinary

Gestational age-specific neonatal mortality in Hong Kong:a population-based retrospective study

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World Journal of Pediatrics 2023年第2期19卷 158-169页

作者： Xue-Lian Wang Eman Leung Genevieve Po Gee fung Hugh simon Lam Department of Neonatology Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouChina Department of Paediatrics Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina The Jockey Club school of Public Health and Primary Care Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina Department of Paediatrics 6/F Lui Che Woo Clinical Sciences BuildingPrince of Wales HospitalSha TinNew TerritoriesHong Kong SARChina

Background The neonatal period is the most vulnerable period during childhood,with the risk of death being the highest even in developed countries/*** Kong’s neonatal mortality(1‰)is among the world’s lowest and has remained similar for 15 *** study aimed to explore neonatal deaths in Hong Kong in detail and determine whether neonatal mortality is reducible at such a low *** Live births in public hospita.s.in Hong Kong during 01 Jan 2006–31 Dec 2017 were *** data were extracted from the electronic medical *** age-specific mortality was calculated,and the trends were analyzed using the Cochran–Armitage trend *** of death were summarized,and risk factors were identified in multivariate logistic regression *** In 490,034 live births,755 cases(1.54‰)died during the neonatal period,and 293(0.6‰)died during the post-neonatal *** neonatal mortality remained similar overall(P=0.17)and among infants born at 24–29 weeks’gestation(P=0.4),while it decreased in those born at 23(P=0.04),30–36(Ps’*** born ats’gestation accounted for a.s.gnificantly increased proportion among cases who died(27.6%to 51.9%),with hemorrhagic conditions(24%)being the leading ca.s. of *** anomalies were the leading ca.s. of death in neonates born≥27 weeks’gestation(52%),but its ca.s.-specific mortality decreased(P=0.002,0.6‰to 0.41‰),with most of the decrease attributed to trisomy 13/18 and multiple *** Reduction of neonatal mortality in developed regions may heavily rely on improved quality of perinatal and neonatal care among extremely preterm infants.

关键词： Ca.s. of death Neonatal mortality Population based Risk factor Trend

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Cancer Communications 2019年第1期39卷 253-257页

作者： shing fung Lee Miguel Angel Luque-Fernandez Department of Clinical Oncology Tuen Mun HospitalNew Territories West ClusterHong KongP.R.China Department of Non-Communicable Disease and Cancer Epidemiology Biomedical Research Institute of GranadaUniversity of Granada18002 GranadaSpain Department of Non-CommunicableDisease and Epidemiology London School of Hygiene and Tropical MedicineLondon WC1E 6HWUK Department of Epidemiology Harvard School of Public HealthBostonMA 02115USA

Dear editor,Biological periodicities occur based on a periodicity in a.s.ectrum of frequencies ranging from milliseconds to yea.s.A circadian rhythm is any biological process that displa.s.an endogenous oscillation of about 24 h[1].Cir-cadian rhythm is the adaption of our bodies’biological processes to the day and night *** biological clock is reset daily to synchronize with the exposure to sunlight beca.s. our internal clock repea.s.at around 24 h[1].Beca.s. of the use of artificial light,our internal clock is influenced by multiple factors,including social interac-tions[1].

关键词： oscillation spectrum editor

Financing Alternatives for Chinese small and Medium Enterprises: The Case for a.s.all and Medium Enterprise stock Market

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China & World Economy 2007年第1期15卷 26-42页

作者： Hung-gay fung Qingfeng Liu Jot Yau Dr Y. s. Tsiang Professor College of Business Administration and Center for International Studies University of Missouri St. Louis USA a.s.stant Professor College of Business James Madison University USA Professor Department of Finance Albers School of Business and Economics Seattle University USA

Financing alternatives for small and medium enterprises in China are discussed in the present study. In particular, we analyze the significant changes and developments m China.s.＂second board＂ stock market. China ＇s extensive network of regional a.s.ts and equity exchanges, which were set up to facilitate private equity tra.s.er, and non-performing loan tra.s.ctions seem to partially fill the void for small and medium enterprises, which cannot easily obtain approval for listing on the stock exchanges. Foreign investors can identify investment opportunities in non-listed domestic state-owned and private businesses through these regional a.s.ts and equity exchanges. At the same time, foreign stock markets are now attracting the young Chinese enterprises to list their stocks on their exchanges.

关键词： Chinese small and medium enterprise financing stock exchange

Hemodynamic analysis of intracranial aneurysms using phase-contrast magnetic resonance imaging and computational fluid dynamics

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Acta Mechanica.s.nica 2017年第2期33卷 472-483页

作者： Xuemei Zhao Rui Li Yu Chen sheau fung sia Donghai Li Yu Zhang Aihua Liu Beijing Huaxin Hospital (First Affiliated Hospital of Tsinghua University) Beijing 100016 China Center for Biomedical Imaging Research Department of Biomedical Engineering Tsinghua University School of Medicine Beijing 100084 China Division of Neurosurgery Faculty of Medicine University of Malaya 50603 Kuala Lumpur Malaysia Medical Center Tsinghua University Beijing 100084 China Beijing Neurosurgical Institute Beijing Tiantan Hospital Capital Medical University Beijing 100050 China

Additional hemodynamic parameters are highly desirable in the clinical management of intracranial aneurysm rupture as static medical images cannot demonstrate the blood flow within aneurysms. There are two wa.s.of obtaining the hemodynamic information-by phase-contrast magnetic resonance imaging (PCMRI) and computational fluid dynamics (CFD). In this paper, we compared PCMRI and CFD in the analysis of a.s.able patient's specific aneurysm. The results showed that PCMRI and CFD are in good agreement with each other. An additional CFD study of two stable and two ruptured aneurysms revealed that ruptured aneurysms have a higher statistical average blood velocity, wall shear stress, and oscillatory shear index (OsI) within the aneurysm sac compared to those of stable aneurysms. Furthermore, for ruptured aneurysms, the OsI divides the positive and negative wall shear stress divergence at the aneurysm sac.

关键词： PCMRI CFD WssD OsI Aneurysm rupture

Does More Trading Lead to Better Market Linkage?Evidence from the Commodity Futures Markets

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China Finance and Economic Review 2018年第1期7卷 50-72页

作者： Hung-Gay fung Zijun Wang Lin Zhao College of Business Administration&Office of International services and Program University of Missouri-St.LouisUSA Department of Finance College of BusinessUniversity of Texas at San AntonioUSA Department of Finance Martha and Spencer Love School of BusinessElon UniversityUSA

In this study,we use eight pairs of commodity futures data to investigate the impact of the recently launched nighttime trading session by Chinese futures *** conduct a thorough empirical analysis on the cross-market information tra.s.ission mechanisms between China and the *** apply various econometric analyses including the co-integration analysis,the forecast error variance decomposition analysis,and the volatility spillover analysis with a bivariate GARCH *** in this study indicate that,after the launching of nighttime-trading hours in China,the price discovery function of the Chinese futures market is noticeably improved,and that the Chinese market began to dominate the *** in the bidirectional volatility spillover ***,the introduction of the nighttime-trading hours appea.s.to be an effective step toward China.s.long-term goal of establishing pricing power in key commodities on the global financial market.

关键词： Chinese futures market market linkage nighttime trading

Can Renminbi Appreciation Reduce the Us Trade Deficit?

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China & World Economy 2006年第1期14卷 44-56页

作者： Jian Zhang Hung-Gay fung Donald Kummer UNEsCO/IAEA the Abdus Salam international Centre for Theoretical Physics （ICTP） Trieste Italy Hung-Gay fung Dr Y S. Tsiang Professor of Chinese Studies College of Business Administration ＆ Center of International Studies University of Missouri-St. Louis USA. a.s.ciate Professor College of Business Administration University of Missouri-St. Louis USA

Using a computational general equilibrium model, we analyze the impacts of Chinese real exchange rate appreciation on the trade balance of China and the UsA and on various industries of both countries, We use several scenarios with 2.1, 6 and 12percent real exchange rate appreciations for our simulation analysis. The results indicate that China.s.exchange rate appreciation might not solve the enlarging Us current account deficits. Chinese outputs in both primary and manufacture sectors will increase, whereas the outputs of energy and serviees sectorx will be adversely affected. The price of value-added products declines in light of the renminbi appreciation.

关键词： China.s.real exchange rate computational general equilibrium international trade