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Non-invasive continuous blood pressure monitoring: a review of current applications

Elena Chung, Guo Chen, Brenton Alexander, Maxime Cannesson

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 91-101 doi: 10.1007/s11684-013-0239-5

Abstract:

Blood pressure monitoring has come a long way from the initial observations made by Reverend Hales in the 18th century. There are none that deny the importance of monitoring perioperative blood pressure; however, the limited ability of the current prevalent technology (oscillometric blood pressure monitoring) to offer continuous blood pressure measurements leaves room for improvement. Invasive monitoring is able to detect beat-to-beat blood pressure measurement, but the risks inherent to the procedure make it unsuitable for routine use except when this risk is outweighed by the benefits. This review focuses on the discoveries which have led up to the current blood pressure monitoring technologies, and especially the creation of those offering non-invasive but continuous blood pressure monitoring capabilities, including their methods of measurement and limitations.

Keywords： pressure monitoring     continuous blood pressure monitoring     invasive blood pressure monitoring     Riva-Rocci technique     oscillometric     Pe?áz technique     arterial tonometry     pulse transit time    

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Process safety management considerations for biofuel production

Hao WU, Igor PEÑARRUBIA, Lin CUI, Jinsong ZHAO

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 357-367 doi: 10.15302/J-FEM-2017025

Abstract: The global production of bio-based chemical products, particularly biofuel products, has tremendously increased over the last decade. Driven largely by a new legislation, this increase has generated the commercialization of new products and processes. Unfortunately, alongside these developments were a significant number of accidents and explosions at biofuel facilities, entailing property damage, injury, and even deaths. The aim of this current study is to draw attention to incidents that occurred in biofuel facilities and clarify the misconceptions that cause people to ignore safety in bio-refineries. A process hazard analysis (PHA) method, namely the hazard and operability study (HAZOP), is first used in biofuel production. This method is an ethanol distillation and dehydration process. Through the HAZOP analysis, 36 recommended action items are proposed, and all recommendations are accepted. The case study reveals that potential high-level risks exist in the current biofuel process design and operating procedures, and these risks can be better controlled if they can be previously identified.

Keywords： biofuel     HAZOP     PHA     risk management    

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Application of Z-source inverter in the asynchronous motor

Zhu Hong,Zhu Longji and Xia Ruofei

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 86-91

Abstract: this paper，the IFOC technology is used to control the size of the speed of asynchronous motor，and the Z-

Keywords： IFOC     asynchronous motor     Z-source inverter    

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Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 493-502 doi: 10.1007/s11708-017-0510-6

Abstract: and exergy analysis of multi-stage compression high temperature heat pump (HTHP) systems with R1234ze(Z)

Keywords： multi-stage compression     high temperature heat pump     heat recovery     exergy destruction     R1234ze(Z) working    

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TODIM and TOPSIS with Z-numbers None

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 2,   Pages 283-291 doi: 10.1631/FITEE.1700434

Abstract:

In this paper, we present an approach that can handle Z-numbers in the context of multi-criteria decision-makingThe concept of Z-number as an ordered pair Z=(A, B) of fuzzy numbers A and BZ-numbers are converted to fuzzy numbers.Then the Z-TODIM and Z-TOPSIS are presented as a direct extension of the fuzzy TODIM and fuzzy TOPSIS

Keywords： Multi-criteria decision-making     TODIM     TOPSIS     Fuzzy number     Z-number    

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Fast Z-Pinch—a New Approach for Promising Fusion Energy

Peng Xianjue,Hua Xinsheng

Strategic Study of CAE 2008, Volume 10, Issue 1,   Pages 47-53

Abstract:

The basic concept of fast Z-Pinch, and late progress in fast Z-pinchlow-cost fusion energy research, are summarized in this paper.The possible technical challenges of fast Z-Pinch

Keywords： fast Z-Pinch implosion     HEDP     ICF     fusion energy    

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Optimal signal design strategywith improper Gaussian signaling in the Z-interference channel Article

Dan LI, Shan WANG, Fang-lin GU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1900-1912 doi: 10.1631/FITEE.1700030

Abstract: Pareto boundary (boundary of the achievable rate region) with improper Gaussian signaling (IGS) on the Z-interferencechannel (Z-IC) under the assumption that the interference is treated as additive Gaussian noise.

Keywords： Z-interference channel     Improper Gaussian signaling     Sum-rate     Pareto boundary     Covariance     Pseudo-covariance    

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Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Z. NASER

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 46-60 doi: 10.1007/s11709-020-0676-6

Abstract: This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnels. The magnitude of the fire problem is illustrated, and the recent increase in fire problems in bridges and tunnels is highlighted. Recent research undertaken to address fire problems in transportation structures is reviewed, as well as critical factors governing the performance of those structures. Furthermore, key strategies recommended for mitigating fire hazards in bridges and tunnels are presented, and their applicability to practical situations is demonstrated through a practical case study. Furthermore, research needs and emerging trends for enhancing the “state-of-the-art” in this area are discussed.

Keywords： fire hazard     bridges     tunnels     fire resistance     mitigation strategies     transportation infrastructure    

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Electrostatic Spring Effect Analysis and Experimental Validation of Silicon Micromechanical Vibrating z

Xia Dunzhu,Zhou Bailing,Wang Shourong

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 66-68

Abstract: justify;">The error principle caused by structural process imperfection of silicon micromechanical z-axiscomputing the relation between the resonant frequency and feedback force added on the sense mode of MEMS z-axis

Keywords： silicon micromechanical z-axis gyroscope     negative electrostatic spring constant     feedback force generator    

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Development of high pulsed-power source based on linear transformer driver for direct-driven Z pinch

Sun Fengju,Qiu Aici,Zeng Zhengzhong,Zeng Jiangtao,Cong Peitian

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 56-63

Abstract: source based on fast linear transformer driver (FLTD), and summarized the latest developments of FLTD-Zmodule and the conception design of pulsed power source based on FLTD such as Z-POP for verifying the

Keywords： fast Z pinch     direct driven     FLTD pulsed-power source     high power pulsed accelerator     conception design    

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Z-scheme CdS/WO on a carbon cloth enabling effective hydrogen evolution

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 678-686 doi: 10.1007/s11708-021-0768-6

Abstract: Herein, a direct Z-scheme CdS/WO3 composite photocatalyst was fabricated based on carbon cloth

Keywords： photocatalysis     CdS/WO3     carbon cloth     Z-scheme     hydrogen evolution    

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Structural Studies on the Cu-H System under Compression Article

Jack Binns, Miriam Peña-Alvarez, Mary-Ellen Donnelly, Eugene Gregoryanz,Ross T.

Engineering 2019, Volume 5, Issue 3,   Pages 505-509 doi: 10.1016/j.eng.2019.03.001

Abstract:

Hydrogen chemistry at extreme pressures is currently subject to extensive research due to the observed and predicted enhanced physical properties when hydrogen is incorporated in numerous binary systems. Despite the high reactivity of hydrogen, the noble metals (Cu, Ag, and Au) display an outstanding resilience to hydride formation, with no reports of a stable compound with a hydrogen molar ratio > 1 at room temperature. Here, through extreme compression and in situ laser heating of pure copper in a hydrogen atmosphere, we explore the affinity of these elements to adopt binary compounds. We report on the phase behavior and stabilities in the Cu–H system, analyzed via synchrotron X-ray diffraction, up to pressures of 50 GPa. We confirm the existence of the previously reported γ0-CuH0.15, γ1-CuH0.5, and ε-Cu2H phases. Most notably, we report the highest hydrogen-content noble-metal hydride stable at room temperature to date: γ2-CuH0.65, which was synthesized through laser heating. This study furthers our understanding of hydrogen-transition metal chemistry and may find applicability in future hydrogen-storage applications.

Keywords： High pressure     Hydrogen storage     Noble metal chemistry    

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ZnFe2O4/BiVO4 Z-scheme heterojunction for efficient visible-light photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1728-1740 doi: 10.1007/s11705-023-2322-z

Abstract: A novel Z-scheme ZnFe2O4/BiVO4 heterojunction photocatalyst was successfullysub> demonstrated considerably enhanced photogenerated charge separation efficiencies because of the Z-schemeThis study thus provides a promising Z-scheme heterojunction photocatalyst for the efficient removal

Keywords： ZnFe2O4/BiVO4     Z-scheme heterojunction     photocatalytic degradation    

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Upgrading of derived pyrolysis vapors for the production of biofuels from corncobs

Liaoyuan Mao, Yanxin Li, Z. Conrad Zhang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 50-58 doi: 10.1007/s11705-017-1685-4

Abstract: A bubbling fluidized bed pyrolyzer was integrated with an honeycomb as a catalytic upgrading zone for the conversion of biomass to liquid fuels. In the upgrading zone, zeolite coated ceramic honeycomb (ZCCH) catalysts consisting of ZSM-5 (Si/Al=25) were stacked and N or recycled non-condensable gas was used as a carrier gas. Ground corncob particles were fast pyrolyzed in the bubbling bed using fine sand particles as a heat carrier and the resulting pyrolysis vapors were passed on-line over the catalytic upgrading zone. The influence of carrier gas, temperature, and weight hourly space velocity (WHSV) of catalyst on the oil product properties, distribution and mass balance were studied. Using ZCCH effectively increased the hydrocarbon yield and the heating value of the dry oil, especially in the presence of the recycled noncondensable gas. Even a low usage of zeolite catalyst at WSHV of 180 h was effective in upgrading the pyrolysis oil and other light olefins. The highest hydrocarbon (≥C2) and liquid aromatics yields reached to 14.23 and 4.17 wt-%, respectively. The undesirable products including light oxygenates, furans dramatically decreased in the presence of the ZCCH catalyst.

Keywords： corncob     monolith     upgrading     pyrolysis    

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Predicting the response of continuous RC deep beams under varying levels of differential settlement

Z. NASER, R. A. HAWILEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 686-700 doi: 10.1007/s11709-018-0506-2

Abstract: This paper investigates the effect of differential support settlement on shear strength and behavior of continuous reinforced concrete (RC) deep beams. A total of twenty three-dimensional nonlinear finite element models were developed taking into account various constitutive laws for concrete material in compression (crushing) and tension (cracking), steel plasticity (i.e., yielding and strain hardening), bond-slip at the concrete and steel reinforcement interface as well as unique behavior of spring-like support elements. These models are first validated by comparing numerical predictions in terms of load-deflection response, crack propagation, reaction distribution, and failure mode against that of measured experimental data reported in literature. Once the developed models were successfully validated, a parametric study was designed and performed. This parametric study examined number of critical parameters such as ratio and spacing of the longitudinal and vertical reinforcement, compressive and tensile strength of concrete, as well as degree (stiffness) and location of support stiffness to induce varying levels of differential settlement. This study also aims at presenting a numerical approach using finite element simulation, supplemented with coherent assumptions, such that engineers, practitioners, and researchers can carry out simple, but yet effective and realistic analysis of RC structural members undergoing differential settlements due to variety of load actions.

Keywords： concrete     continuous beams     deep beams     finite element modeling     support settlement    

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Title Author Date Type Operation

Non-invasive continuous blood pressure monitoring: a review of current applications

Elena Chung, Guo Chen, Brenton Alexander, Maxime Cannesson

Journal Article

Process safety management considerations for biofuel production

Hao WU, Igor PEÑARRUBIA, Lin CUI, Jinsong ZHAO

Journal Article

Application of Z-source inverter in the asynchronous motor

Zhu Hong,Zhu Longji and Xia Ruofei

Journal Article

Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

Journal Article

TODIM and TOPSIS with Z-numbers

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

Journal Article

Fast Z-Pinch—a New Approach for Promising Fusion Energy

Peng Xianjue,Hua Xinsheng

Journal Article

Optimal signal design strategywith improper Gaussian signaling in the Z-interference channel

Dan LI, Shan WANG, Fang-lin GU

Journal Article

Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Z. NASER

Journal Article

Electrostatic Spring Effect Analysis and Experimental Validation of Silicon Micromechanical Vibrating z

Xia Dunzhu,Zhou Bailing,Wang Shourong

Journal Article

Development of high pulsed-power source based on linear transformer driver for direct-driven Z pinch

Sun Fengju,Qiu Aici,Zeng Zhengzhong,Zeng Jiangtao,Cong Peitian

Journal Article

Z-scheme CdS/WO on a carbon cloth enabling effective hydrogen evolution

Journal Article

Structural Studies on the Cu-H System under Compression

Jack Binns, Miriam Peña-Alvarez, Mary-Ellen Donnelly, Eugene Gregoryanz,Ross T.

Journal Article

ZnFe2O4/BiVO4 Z-scheme heterojunction for efficient visible-light photocatalytic

Journal Article

Upgrading of derived pyrolysis vapors for the production of biofuels from corncobs

Liaoyuan Mao, Yanxin Li, Z. Conrad Zhang

Journal Article

Predicting the response of continuous RC deep beams under varying levels of differential settlement

Z. NASER, R. A. HAWILEH

Journal Article