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Directional neighbor discovery in mmWave wireless networks

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Digital Communications and Networks 2021年第1期7卷 1-15页

作者： Yu Wang Ticao Zhang Shiwen Mao theodore(Ted)S.Rappaport Department of Electrical and Computer Engineering Auburn UniversityAuburnAL36849-5201USA NYU WIRELESS Center NYU Tandon School of EngineeringBrooklynNY11201USA

The directional neighbor discovery problem,i.e,spatial rendezvous,is a fundamental problem in millimeter wave(mmWave)wireless networks,where directional transmissions are used to overcome the high *** challenge is how to let the transmitter and the receiver beams meet in space under deafness caused by directional transmission and reception,where no control channel,prior information,and coordination are *** this paper,we present a Hunting based Directional Neighbor Discovery(HDND)scheme for ad hoc mmWave networks,where a node follows a unique sequence to determine its transmission or reception mode,and continuously r0-tates its directional beam to scan the neighborhood for other mmWave *** a rigorous analysis,we derive the conditions for ensured neighbor discovery,as well as a bound for the worst-case discovery time and the impact of *** validate the analysis with extensive simulations and demonstrate the superior perfor-mance of the proposed scheme over several baseline schemes.

关键词： Fifth generation(5G)wireless Beamforming Spatial fltering Directional antenna Directional neighbor discovery Initial access Milimeter wave(mmWave)networks Spatial rendezvous

Importance of orographic gravity waves over the Tibetan Plateau on the spring rainfall in East Asia

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Science China Earth Sciences 2023年第11期66卷 2594-2602页

作者： Runqiu LI Xin XU Xiangde XU theodore G.SHEPHERD Yuan WANG Key Laboratory of Mesoscale Severe Weather/Ministry of Education and School of Atmospheric Sciences Nanjing UniversityNanjing 210023China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Department of Meteorology University of ReadingEarley GatePO Box 243Reading RG66BBUK

The springtime persistent rainfall(SPR)is the major rainy period before the onset of summer monsoon in East Asia,which profoundly affects the regional and even global hydrological *** the great importance of the mechanical and thermal effects of the Tibetan Plateau(TP)large-scale orography on the formation of SPR,the impact of small-scale orography over the TP remains poorly *** we show that upward-propagating orographic gravity waves(OGWs),which occur as the subtropical westerlies interact with the TP's small-scale orography,contribute importantly to the *** breaking of OGWs induces a large zonal wave drag in the middle troposphere,which drives a meridional circulation across the *** rising branch of the meridional circulation acts to lower the pressure and increase the meridional pressure gradient to the south of the TP by dynamically pumping the lower-tropospheric air *** southwesterly monsoonal flow on the southeastern flank of the TP thus intensifies and transports more water vapor to East Asia,resulting in an enhancement of the *** finding helps more completely understand the impacts of TP's multiscale orography on the SPR and provides a new perspective on the westerly-monsoon synergy in East Asia.

关键词： Tibetan Plateau Orographic gravity waves Monsoon Spring persistent rainfall

Vitamin K supplementation to prevent hemorrhagic morbidity and mortality of newborns in India and China

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World Journal of Pediatrics 2017年第1期13卷 15-19页

作者： Rajesh Kumar Rai Jing Luo theodore Herzl Tulchinsky Society for Health and Demographic Surveillance SuriBirbhumWest BengalIndia Braun School Public Health and Community Medicine Hebrew University-HadassahEin KaremJerusalemIsrael

Background?Vitamin K deficiencY bleeding(VKOBl can cause prolonged and bleeding(intracranial hemorrhage)ameng *** can be life—threatening or lead to long-term *** aim of this review article is to reiterate empirical evidence to support the argument that vitamin K should be mandatory for newborns in India and China,as well as in other countries with a high burden of neonatal deaths.

关键词： global health hemorrhagic disease of the newborn intracranial hemorrhage neonatal mortality vitamin K deficiency bleeding disorder

A unified intrinsic functional expansion theory for solitary waves

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Acta Mechanica Sinica 2005年第1期21卷 1-15页

作者： theodore Yaotsu Wu John Kao Jin E.Zhang California Institute of Technology Pasadena.CA 91125U.S.A.FellowInstitute of MechanicsChinese Academy of SciencesBeijing 100080China Warner Brothers GlendaleCA 91203.U.S.A. The university of Hong Kong.Pokfulam Road.Hong Kong SAR.China

A new theory is developed here for evaluating solitary waves on water, with results of high accuracy uniformly valid for waves of all heights, from the highest wave with a corner crest of 120 down to very low ones of diminishing height. Solutions are sought for the Euler model by employing a unified expansion of the logarithmic hodograph in terms of a set of intrinsic component functions analytically determined to represent all the intrinsic properties of the wave entity from the wave crest to its outskirts. The unknown coefficients in the expansion are determined by minimization of the mean-square error of the solution, with the minimization optimized so as to take as few terms as needed to attain results as high in accuracy as attainable. In this regard, Stokess formula, F2= tan , relating the wave speed (the Froude number F) and the logarithmic decrement of its wave field in the outskirt, is generalized to establish a new criterion requiring (for minimizing solution error) the functional expansion to contain a finite power series in M terms of Stokess basic term (singular in ), such that 2M is just somewhat beyond unity, i.e. 2M1. This fundamental criterion is fully validated by solutions for waves of various amplitude-to-water depth ratio =a/h, especially about 0.01, at which M=10 by the criterion. In this pursuit, the class of dwarf solitary waves, defined for waves with 0.01, is discovered as a group of problems more challenging than even the highest wave. For the highest wave, a new solution is determined here to give the maximum height hst=0.8331990, and speed Fhst=1.290890, accurate to the last significant figure, which seems to be a new record.

关键词： Solitary waves on water Unified intrinsic functional expansion theory Exact solutions High-accuracy computation of waves of arbitrary height Mass and energy transfer

Fumarate hydratase:a new checkpoint of metabolic regulation in inflammatory macrophages

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Signal Transduction and Targeted Therapy 2023年第10期8卷 4421-4423页

作者： Aicha Jeridi theodore S.Kapellos Ali Onder Yildirim Comprehensive Pneumology Center(CPC) Institute of Lung Health and Immunity(LHI)Member of the German Center for Lung Research(DZL)Helmholtz MunichMunichGermany Institute of Experimental Pneumology University HospitalLudwig-Maximilians UniversityMünchenGermany

A recent article published by Hooftman et al.1 in Nature identified a crucial function for fumarate hydratase(FH)in bone marrow-derived macrophages(BMDMs).Pharmacological inhibition or genetic ablation of FH led to increased fumarate levels and downstream suppression of mitochondrial respiration implying the importance of cellular metabolic states and cytokine balance shift in innate immunity.

关键词： al. macrophages respiration

Isolated right coronary artery bypass grafting via minimally invasive approach in two elderly patients with failed percutaneous coronary intervention

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Journal of Geriatric Cardiology 2022年第7期19卷 555-558页

作者： An Shing Ang Ilias Skaltsiotis theodore Kofidis Hee Hwa Ho Department of Cardiology Tan Tock Seng HospitalSingapore Department of Cardiac Thoracic and Vascular SurgeryNational University HospitalNational University Health SystemSingapore

Coronary artery bypass grafting(CABG)tra-ditionally involves revascularization of the left anterior descending artery(LAD)as it is usually of greater prognostic value.[1]Isolated CABG for non-LAD lesions have also been descri-bed in ***,these were often in the setting of re-do CABG[2,3]or in patients with isol-ated right sided coronary lesion and concomitant valvular heart disease.

关键词： coronary bypass patients

Acute liver injury in COVID-19 patients hospitalized in the intensive care unit:Narrative review

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World Journal of Gastroenterology 2022年第47期28卷 6662-6688页

作者： Effie Polyzogopoulou Pinelopi Amoiridou theodore P Abraham Ioannis Ventoulis Department of Emergency Medicine Attikon University HospitalNational and Kapodistrian University of Athens Medical SchoolAthens 12462Greece Department of Intensive Care AHEPA University HospitalThessaloniki 54621Greece Hypertrophic Cardiomyopathy Center of Excellence University of CaliforniaSan FranciscoCA 94117United States Department of Occupational Therapy University of Western MacedoniaPtolemaida 50200Greece

In recent years,humanity has been confronted with a global pandemic due to coronavirus disease 2019(COVID-19),which has caused an unprecedented health and economic crisis *** from the respiratory symptoms,which are considered the principal manifestations of COVID-19,it has been recognized that COVID-19 constitutes a systemic inflammatory process affecting multiple organ *** the spectrum of organ involvement in COVID-19,acute liver injury(ALI)has been gradually gaining increasing attention by the international scientific ***-19 associated liver impairment can affect a considerable proportion of COVID-19 patients and seems to correlate with the severity of the disease ***,COVID-19 patients hospitalized in the intensive care unit(ICU)run a greater risk of developing ALI due to the severity of their clinical condition and in the context of multi-organ *** putative pathophysiological mechanisms of COVID-19 induced ALI in ICU patients remain poorly understood and appear to be multifactorial in *** theories have been proposed to explain the occurrence of ALI in the ICU setting,such as hypoperfusion and ischemia due to hemodynamic instability,passive liver congestion as a result of congestive heart failure,ischemia-reperfusion injury,hypoxia due to respiratory failure,mechanical ventilation itself,sepsis and septic shock,cytokine storm,endotheliitis with concomitant coagulopathy,druginduced liver injury,parenteral nutrition and direct cytopathic viral *** should be noted that no specific therapy for COVID-19 induced ALI ***,the therapeutic approach lies in preventive measures and is exclusively supportive once ALI *** aim of the current review is to scrutinize the existing evidence on COVID-19 associated ALI in ICU patients,explore its clinical implications,shed light on the underlying pathophysiological mechanisms and propose potential therapeutic *** research on the pa

关键词： Liver injury COVID-19 Intensive care Pathophysiological mechanisms Cytokine storm Multi-organ failure

Physical Characterization of Ionic Liquid-Modified Polyvinyl Alcohol and Sodium Thiocyanate Polymer Electrolytes for Electrochemical Double-Layer Capacitor Application

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Journal of Shanghai Jiaotong university(Science) 2023年第2期28卷 161-171页

作者： AZEMTSOP Manfo theodore MEHRA Ram Mohan KUMAR Yogesh GUPTA Meenal Material Research Laboratory Department of PhysicsSBSRSharda UniversityGreater Noida 201310India Department of Electronics and Communication Engineering Sharda UniversityGreater Noida 201310India Department of Physics Atma Ram Sanatan Dharma CollegeUniversity of DelhiNew Delhi 110021India

Novel gel polymer electrolytes(GPEs)composed of polyvinyl alcohol(PVA)and sodium thiocyanate were developed via a solution casting *** ionic liquid(IL),1-ethyl-3-methyl-imidazolium tricyanomethanide([EMIM][TCM]),was doped into a polymer–salt complex system(PVA+NaSCN)to further enhance the ***-doped polymer electrolyte(ILDPE)films were characterized using X-ray diffraction(XRD),polarized optical microscopy(POM),Fourier-transform infrared(FTIR)spectroscopy,and conductivity *** was performed to check the degree of crystallinity and amorphicity of the ILDPE films,and the amorphicity of GPEs increased with the increase of the IL *** was employed to evaluate the changes in the surface morphology due to the inclusion of salt and IL in the *** compositional nature of the GPE films was examined via FTIR *** electrical and electrochemical properties were characterized by cyclic voltammetry and electrochemical impedance *** maximum conductivity for the GPE film was estimated to be 1.10×10^(-5) S/cm for 6%(mass fraction)of IL in the polymer–salt *** ionic transference number was approximately *** electrochemical double-layer capacitor(EDLC)was built from optimized GPE films and reduced graphene oxide-based *** specific capacitance calculated from the cyclic voltammograms of the EDLC cells was 3 F/g.

关键词： ionic conductivity ionic liquid(IL) mobility transference number cyclic voltammetry polymer electrolyte

Emergency Medicine and COVID-19:now and next year

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Emergency and Critical Care Medicine 2021年第1期1卷 14-19页

作者： theodore A.Christopher Adrienne N.Christopher Department of Emergency Medicine Thomas Jefferson University HospitalPhiladelphiaPennsylvania Department of Surgery Thomas Jefferson University HospitalPhiladelphiaPennsylvania

The COVID-19 pandemic is responsible for infecting to date more than 93 million people worldwide and causing more than 2 million *** the vast majority of deaths have occurred in the United States(U.S.)can be attributed to nonadherence by Americans to basic public health mitigation strategies that are known to curtail coronavirus *** Departments(ED’s)throughout the *** a dramatic decrease in patient visits during the first surge of COVID-19,followed by an ED patient visit rebound to approximately 80%of pre-COVID-19 numbers,which have remained relatively stable through the current second COVID-19 *** pandemic highlighted the significant role that hospital ED’s and emergency physicians played in combatting COVID-19“on the front lines.”Wearing extensive and escalating personal protective equipment(PPE)layers became the norm in seeing emergency patients,and many infrastructure and process changes occurred included evaluating and treating patients in outdoor tents,cohorting confirmed and suspected COVID-19 patients in designated ED and hospital sections,and repeatedly amending COVID-19 evaluation and treatment guidelines as more information became available on a sometimes daily *** other clinical venues in which emergency physicians were working during COVID-19 surges,Observation Unit patient visits decreased,although patient acuity increased;urgent care(UC)patient visits decreased dramatically,whereas Telehealth(TH)patient visits to our 24/7 available platform,JeffCONNECT,saw a dramatic increase in ***,Dexamethazone and more recently,the monoclonal antibody Bamlanivimab,have formed the mainstay of treatment offered to our patients with COVID-19;all these agents are offered to patients in our ED’s and Observation *** current second COVID-19 surge,with our ED and hospital patient visits remaining essentially stable,has intensified the public health crisis as record numbers of *** continue to a

关键词： Coronavirus COVID-19 Emergency Medicine