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A techno-economic and life cycle assessment for the production of green methanol from CO_(2): catalyst and process bottlenecks

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Journal of Energy Chemistry 2022年第5期31卷 255-266页

作者： Tomas Cordero-Lanzac Adrian Ramirez Alberto Navajas Lieven Gevers sirio Brunialti Luis MGandía Andrés T.Aguayo s.mani sarathy Jorge Gascon Department of Chemical Engineering University of the Basque Country(UPV/EHU)PO Box 64448080 BilbaoSpain King Abdullah University of science and Technology KAUST Catalysis Center(KCC)Advanced Catalytic MaterialsThuwal 23955Saudi Arabia Department of science Public University of Navarre(UPNA)Arrosadía Campus s/n31006 PamplonaSpain Institute for Advanced Materials and Mathematics(InaMat2) Universidad Pública de Navarra(UPNA)Edificio Jerónimo de AyanzCampus de ArrosadiaPamplona-Iruña 31006Spain King Abdullah University of science and Technology Clean Combustion Research Center(CCRC)Thuwal 23955Saudi Arabia

The success of catalytic schemes for the large-scale valorization of CO_(2) does not only depend on the development of active,selective and stable catalytic materials but also on the overall process *** we present a multidisciplinary study(from catalyst to plant and techno-economic/lifecycle analysis)for the production of green methanol from renewable H2 and CO_(2).We combine an in-depth kinetic analysis of one of the most promising recently reported methanol-synthesis catalysts(InCo)with a thorough process simulation and techno-economic *** then perform a life cycle assessment of the simulated process to gauge the real environmental impact of green methanol production from CO_(2).Our results indicate that up to 1.75 ton of CO_(2) can be abated per ton of produced methanol only if renewable energy is used to run the process,while the sensitivity analysis suggest that either rock-bottom H2 prices(1.5$kg1)or severe CO_(2) taxation(300$per ton)are needed for a profitable methanol ***,we herein highlight and analyze some critical bottlenecks of the *** attention has been paid to the contribution of H2 to the overall plant costs,CH4 trace formation,and purity and costs of raw *** addition to providing important information for policy makers and industrialists,directions for catalyst(and therefore process)improvements are outlined.

关键词： CO_(2) Methanol Kinetic modeling Process simulation Life cycle assessment

Controlling Tendons to Modulate stiffness of a Planar-to-spatial Tendon-Driven Continuum manipulator Under External Uncertain Forces

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Journal of Bionic Engineering 2024年第2期21卷 821-841页

作者： Vipin Pachouri Pushparaj mani Pathak Indian Institute of Technology Roorkee Roorkee247667India

Continuum manipulators(CM)are soft and flexible manipulators with large numbers of degrees of freedom and can perform complex tasks in an unstructured ***,their deformability and compliance can deviate distal tip under uncertain external *** address this challenge,a novel tension-based control scheme has been proposed to modulate the stiffness of a tendon-driven CM,reducing the tip position errors caused by uncertain external *** minimize the tip position error,a virtual spring is positioned between the deviated and the desired tip *** proposed algorithm corrects the manipulator deviated tip position,improving tension distribution and stiffness profile,resulting in higher stiffness and better *** corresponding task space stiffness and condition numbers are also computed under different cases,indicating the effectiveness of the tension control scheme in modulating the manipulator's *** validation conducted on an in-house developed prototype confirms the practical feasibility of the proposed approach.

关键词： Continuum arm Hyper-redundant robots Variable stiffness.manipulator Tension-based control Mechatronic systems

Nonlinear Coupling of Kinetic Alfvén Waves and Ion Acoustic Waves in the Inner Heliosphere

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Research in Astronomy and Astrophysics 2024年第10期24卷 141-158页

作者： mani K.Chettri Vivek shrivastav Rupak Mukherjee Nidhi Gaur R.P.sharma Hemam D.singh Department of Physics Sikkim UniversityGangtokSikkimIndia DAV Public school Sector 14GurugramHaryanaIndia Plasma simulation Laboratory Department of Energy Science and EngineeringIndian Institute of Technology DelhiDelhiIndia

We study the nonlinear coupling of kinetic Alfvén waves with ion acoustic waves applicable to the Earth’s radiation belt and near-sun streamer belt solar wind using dynamical equations in the form of modified Zakharov *** simulations show the formation of magnetic field filamentary structures associated with density humps and dips which become turbulent at later times,redistributing the energy to higher *** magnetic power spectra exhibit an inertial range Kolmogorov-like spectral index value of-5/3 for k_(⊥)ρ_(i)steeper dissipation range spectra with indices~-3 for the radiation belt case and~-4 for the nearsun streamer belt solar wind case,here k_(⊥)andρ_(i)represent the wavevector component perpendicular to the background magnetic field and the ion thermal gyroradius,*** quasilinear theory in terms of the Fokker-Planck equation in the region of wavenumber turbulent spectra,we find the particle distribution function flattening in the superthermal tail population which is the signature of particle energization and plasma heating.

关键词： sun:chromosphere sun:corona sun:heliosphere

Navigating emotional challenges:A journey with patients undergoing chemotherapy

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World Journal of Clinical Oncology 2024年第9期15卷 1132-1135页

作者： Nisha mani Pandey Pooja Ramakant Department of Geriatric Mental Health King George's Medical UniversityLucknow 226003India Department of Endocrine surgery King Georges Medical UniversityLucknow 226003India

A recent article reported that cancer patients with subthreshold depression are more likely to develop major depression within a *** regression analysis revealed that regular exercise was a protective factor against cancerrelated fatigue,whereas advanced age,radiotherapy,pain,and low hemoglobin were risk factors for cancer-related fatigue.A limitation of this study was the lack of methodological details about leukemia patients receiving depressive treatment at a specific *** assessment,behavioral modification plans,communication,destressing techniques,and educational plans may help chemotherapy patients manage emotional issues and reduce ***,these strategies can inspire patients to create,facilitate their treatment,and help them to remain healthy.

关键词： Leukemia patients Cancer patients Emotional distress subthreshold depression Chemotherapy

Overview of the Association Between Non-Alcoholic Fatty Liver Disease and Hypertension

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Cardiology Discovery 2024年第1期4卷 30-37页

作者： Niki s.Kakouril Costas G.Thomopoulos Eirini P.siafi Angeliki E.Valatsoul Kyriakos s.Dimitriadis Iliana P.mani sotirios P.Patsilinakos Dimitrios M.Tousoulis Konstantinos P.Tsioufis First Department of Cardiology Medical SchoolNational and Kapodistrian University of AthensHippokration HospitalAthens 11527Greece Department of Cardiology Elena Venizelou HospitalAthens 11521Greece Department of Cardiology General Hospital Agia OlgaAthens 14233Greece

Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, and its prevalence is rising. NAFLD is closely associated with metabolic syndrome, with both conditions sharing common clinical characteristics such as obesity, insulin resistance, type 2 diabetes mellitus, hypertension, and hypertriglyceridemia. several observational studies have evaluated the relationship between NAFLD and hypertension, with the overall evidence suggesting a bidirectional relationship. It is hypothesized that activation of the sympathetic nervous and renin-angiotensin systems, observed in NAFLD with or without insulin resistance promotes the development of hypertension. In patients with hypertension, activation of these systems can lead to hepatic fibrosis and progressive inflammation through increased oxidative stress and activation of hepatic stellate cells and Kupffer cells. The present review examines the pathophysiologic and clinical evidence supporting the bidirectional association between NAFLD and hypertension.

关键词： Hypertension Non-alcoholic fatty liver disease Insulin resistance sympathetic nervous system Metabolic syndrome

Accelerated partial breast irradiation:advances and controversies

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Chinese Journal of Cancer 2016年第4期35卷 163-170页

作者： mani Akhtari Bin s.Teh Department of Radiation Oncology Houston Methodist HospitalCancer Center and Research InstituteWeil Cornell Medical College Department of Radiation Oncology The University of Texas Medical Branch at Galveston

The management of localized breast cancer has changed dramatically over the past three to four *** therapy,which involved lumpectomy followed by adjuvant irradiation,is now widely considered the standard of care in women with early-stage breast *** partial breast irradiation(APBI),which involves focal irradiation of the lumpectomy cavity over a short period of time,has developed over the past two decades as an alternative to whole breast irradiation(WBI).Multiple APBI modalities have been developed including brachytherapy,external beam irradiation,and intraoperative *** new technigues have provided early-stage breast cancer patients with shorter treatment duration and more focused irradiation,delivering very high biological doses to the region at a high risk of failures over a much shorter treatment course as compared with conventional ***,the advantages of APBI over conventional radiotherapy are controversial,including a higher risk of complications reported in retrospective literature and shorter follow-up duration in the intraoperative APBI ***,APBI presents a valuable alternative to WBI for a selected population of women with early-stage breast cancer.

关键词： Accelerated partial breast irradiation Brachytherapy Breast cancer

丁烯/丁醇异构体低温氧化Waddington反应机制理论研究

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燃烧科学与技术 2022年第5期28卷 540-548页

作者：赵倩李阳 mani sarathy 黄佐华张英佳西安交通大学动力工程多相流国家重点实验室西安710049 西北工业大学燃烧、结构与内流场重点实验室西安710072 阿卜杜拉国王科技大学清洁燃烧研究中心图沃23955沙特阿拉伯

Waddington机理是烯烃和醇类异构体低温氧化机理建模的重要组成部分.针对丁烯/丁醇异构体,系统研究了低温氧化过程的Waddington动力学机制.基于量子化学原理,对该反应机制下的反应速率常数和物种热力学性质进行计算.基于过渡态理论,结合... 详细信息

Waddington机理是烯烃和醇类异构体低温氧化机理建模的重要组成部分.针对丁烯/丁醇异构体,系统研究了低温氧化过程的Waddington动力学机制.基于量子化学原理,对该反应机制下的反应速率常数和物种热力学性质进行计算.基于过渡态理论,结合RRKM/ME方法,获得目标体系温度-/压力依赖的速率系数.在统计热力学的基础上,计算了所有关键物种温度相关的内能、生成焓、熵和热容等热力学量.与文献结果比较发现,异丁烯(R4和R5体系)的动力学与热力学参数均与文献值吻合较好.该理论计算结果可直接用于丁烯和丁醇异构体低温氧化动力学模型构建.

关键词： Waddington机制丁烯/丁醇异构体从头算法速率系数热力学参数

WDP1轻型客运机车的开发及利用计算机模拟进行设计评估

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国外内燃机车 1997年第12期 1-6页

作者： s.mani 杨兵

印度铁路使用的WDM2型干线内燃机车，是一种客货两用机车。它是迄今为止印度在客运和货运中大量使用的主型机车，在最近的30年中一直工作得很出色。然而，在当今迅变的情况下，它的作用正逐渐减小。因为今天的要求是提高能量效率，并且... 详细信息

印度铁路使用的WDM2型干线内燃机车，是一种客货两用机车。它是迄今为止印度在客运和货运中大量使用的主型机车，在最近的30年中一直工作得很出色。然而，在当今迅变的情况下，它的作用正逐渐减小。因为今天的要求是提高能量效率，并且优化机车设计，而WDM2型机车是作为在重载高粘着的货运设计和轻载高速客运设计之间的一种折衷方案而设计的，因此它并非是一种好的选择。设在勒克瑙的印度铁路的研究、设计和标准组织已设计了一种B0-B0机车，与WDM2型机车的客运能力相当，但油耗降低了15％～20％。文中阐述了该设计工作的思路，并说明了运用计算机模拟技术评估此机车设计方案。

关键词：轻型客运机车计算机模拟评估WDP1型设计

Impact of fifth order dispersion on soliton solution for higher order NLs equation with variable coefficients

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Journal of Ocean Engineering and science 2020年第3期5卷 205-213页

作者： Angelin Vithya M.s.mani Rajan Department of Physics Anna UniversityUniversity College of EngineeringRamanathapuram 623513India

In this paper,the variable coefficient nonlinear schrödinger equation with fifth order dispersion in the inhomogeneous optical fiber is investigated to study the impact of fifth order dispersion on attosecond soliton *** on the Darboux transformation method,soliton solution is constructed with modulated coefficients though Lax *** show that the coefficients of GVD and fifth order term are the main keys to control the amplitude,width and phase shift in the *** the suitable choices of coefficients for the obtained soliton solution,some new types of soliton management through fifth order are presented for the first ***,the influence of fifth order dispersion of the higher order NLs equations with and without modulated coefficients is discussed in *** will also highlight the impact of the studies on application in ocean *** results may be potentially useful in the soliton shaping and management in inhomogeneous fibers.

关键词： Fifth order dispersion Attosecond pulse soliton control soliton management Inhomogeneous fiber Oceanic waves