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Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI
Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2, Pages 187-197 doi: 10.1007/s11465-015-0339-9
Keywords： graphene van der Waals (vdW) force modi- fied strain gradient elasticity theory size effect parameter
On the applicability of different adhesion models in adhesive particulate flows
Guanqing LIU, Shuiqing LI, Qiang YAO,
Frontiers in Energy 2010, Volume 4, Issue 2, Pages 280-286 doi: 10.1007/s11708-009-0062-5
Keywords： adhesive contact van der Waals force adhesion model adhesion map DEM
Shaking-moment balancing of mechanisms with principal vectors and momentum
V. van der WIJK
Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 10-16 doi: 10.1007/s11465-013-0359-2
The design of shaking-moment-balanced linkages still is challenging. Considering moment balance in the very beginning of the design process of mechanisms is important for finding applicable solutions. For this purpose, the method of principal vectors is investigated, showing a compact notation of the angular momentum with respect to the center of mass. The moment balance conditions are derived for three elements in series from which balance solutions are synthesized and illustrated. From the application for moment balancing of a 4R four-bar linkage it is shown that the moment balancing of closed kinematic chains remains challenging.
Keywords： shaking-moment balancing principal vector linkage angular momentum
Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo
Songbo He, Jeffrey Boom, Rolf van der Gaast, K. Seshan
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 155-161 doi: 10.1007/s11705-017-1655-x
Keywords： bio-oil pyrolysis hydro-deoxygenation (HDO) non-noble metal catalysts hydro-treatment
A Micromotor Catheter for Intravascular Optical Coherence Tomography
Tianshi Wang, Gijs van Soest, Antonius F. W. van der Steen
Engineering 2015, Volume 1, Issue 1, Pages 15-17 doi: 10.15302/J-ENG-2015018
We have developed a new form of intravascular optical coherence tomography (IV-OCT) that allows the extremely fast acquisition of high-resolution images of the coronary arteries. This process leads to much better image quality by eliminating cardiac motion artefacts and undersampling. It relies on a catheter that incorporates a synchronous micromotor with a diameter of 1.0 mm and a rotational speed of up to 5600 revolutions per second, enabling an IV-OCT frame rate of 5.6 kHz. This speed is matched by a wavelength-swept laser that generates up to 2.8 million image lines per second. With this setup, our team achieved IV-OCT imaging of up to 5600 frames per second (fps) in vitro and 4000 fps in vivo, deployed at a 100 mm·s−1 pullback velocity. The imaging session is triggered by the electrocardiogram of the subject, and can scan a coronary artery in the phase of the heartbeat where the heart is at rest, providing a name for this new technology: the "Heartbeat OCT."
Intercropping enables a sustainable intensification of agriculture
Wopke VAN DER WERF, Chunjie LI, Wen-Feng CONG, Fusuo ZHANG
Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 3, Pages 254-256 doi: 10.15302/J-FASE-2020352
Coronary leukocyte activation in relation to progression of coronary artery disease
Marijke A. de Vries,Arash Alipour,Erwin Birnie,Andrew Westzaan,Selvetta van Santen,Ellen van der ZwanLiem,Noëlle van der Meulen,Manuel Castro Cabezas
Frontiers of Medicine 2016, Volume 10, Issue 1, Pages 85-90 doi: 10.1007/s11684-016-0435-1
Leukocyte activation has been linked to atherogenesis, but there is little in vivo evidence for its role in the progression of atherosclerosis. We evaluated the predictive value for progression of coronary artery disease (CAD) of leukocyte activation markers in the coronary circulation. Monocyte and neutrophil CD11b, neutrophil CD66b expression and intracellular neutrophil myeloperoxidase (MPO) in the coronary arteries were determined by flow cytometry in patients undergoing coronary angiography. The primary outcome included fatal and nonfatal myocardial infarction or arterial vascular intervention due to unstable angina pectoris. In total 99 subjects who were included, 70 had CAD at inclusion (26 patients had single-vessel disease, 18 patients had two-vessel disease and 26 patients had three-vessel disease). The median follow-up duration was 2242 days (interquartile range: 2142–2358). During follow-up, 13 patients (13%) developed progression of CAD. Monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO measured in blood obtained from the coronary arteries were not associated with the progression of CAD. These data indicate that coronary monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO do not predict the risk of progression of CAD.
Keywords： coronary artery disease inflammation integrin myeloperoxidase leukocyte activation
A. van der HEIJDEN, Fusuo ZHANG, S. Franz BENDER
Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 3, Pages 236-242 doi: 10.15302/J-FASE-2020336
Annemie Bogaerts, Maksudbek Yusupov, Jamoliddin Razzokov, Jonas Van der Paal
Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2, Pages 253-263 doi: 10.1007/s11705-018-1786-8
Keywords： plasma medicine cancer treatment computer modelling cell membrane reactive oxygen and nitrogen species
Mitigating nitrous oxide emissions from agricultural soils by precision management
REES, Juliette MAIRE, Anna FLORENCE, Nicholas COWAN, Ute SKIBA, Tony van der WEERDEN, Xiaotang JU
Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 1, Pages 75-80 doi: 10.15302/J-FASE-2019294
Nitrous oxide (N O) emissions make up a significant part of agricultural greenhouse gas emissions. There is an urgent need to identify new approaches to the mitigation of these emissions with emerging technology. In this short review four approaches to precision managements of agricultural systems are described based on examples of work being undertaken in the UK and New Zealand. They offer the opportunity for N O mitigation without any reduction in productivity. These approaches depend upon new sensor technology, modeling and spatial information with which to make management decisions and interventions that can both improve agricultural productivity and environmental protection.
Keywords： decision support systems mitigation nitrous oxide precision farming
Jan Pieter VAN DER BERG, Gijs A. KLETER, Evy BATTAGLIA, Martien A. M. GROENEN, Esther J. KOK
Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2, Pages 136-147 doi: 10.15302/J-FASE-2019306
Genetic modification techniques, in particular novel gene editing technologies, hold the yet unfulfilled promise of altering genetic traits in farm animals more efficiently than by crossbreeding, allowing for a more rapid development of new cattle breeds with distinct traits. Gene editing technologies allow for the directed alteration of specific traits and thereby have the potential to enhance, for instance, disease resilience, production yield and the production of desired substances in milk. The potential implications of these technological advancements, which are often combined with animal cloning methods, are discussed both for animal health and for consumer safety, also with consideration of available methods for the detection and identification of the related products in the food supply chain. Finally, an overview is provided of current regulatory approaches in the European Union (EU) and major countries exporting beef to the EU, for products from animals bred through established practices as well as modern biotechnologies.
Keywords： cattle food safety gene editing genetic modification GMO detection regulation
Toward Carbon-Neutral Water Systems: Insights from Global Cities Article
Ka Leung Lam, Gang Liu, Anne Marieke Motelica-Wagenaar, Jan Peter van der Hoek
Engineering 2022, Volume 14, Issue 7, Pages 77-85 doi: 10.1016/j.eng.2022.04.012
Many cities have pledged to achieve carbon neutrality. The urban water industry can also contribute its share to a carbon-neutral future. Using a multi-city time-series analysis approach, this study aims to assess the progress and lessons learned from the greenhouse gas (GHG) emissions management of urban water systems in four global cities: Amsterdam, Melbourne, New York City, and Tokyo. These cities are advanced in setting GHG emissions reduction targets and reporting GHG emissions in their water industries. All four cities have reduced the GHG emissions in their water industries, compared with those from more than a decade ago (i.e., the latest three-year moving averages are 13%–32% lower), although the emissions have "rebounded" multiple times over the years. The emissions reductions were mainly due to various engineering opportunities such as solar and mini-hydro power generation, biogas valorization, sludge digestion and incineration optimization, and aeration system optimization. These cities have recognized the many challenges in reaching carbon-neutrality goals, which include fluctuating water demand and rainfall, more carbon-intensive flood-prevention and water-supply strategies, meeting new air and water quality standards, and revising GHG emissions accounting methods. This study has also shown that it is difficult for the water industry to achieve carbon neutrality on its own. A collaborative approach with other sectors is needed when aiming toward the city's carbon-neutrality goal. Such an approach involves expanding the usual system boundary of the water industry to externally tap into both engineering and non-engineering opportunities.
Keywords： Urban water Greenhouse gas emissions Cities Climate change mitigation Carbon neutrality
Min He, Mengmeng Sun, Slavik Koval, Roeland Van Wijk, Thomas Hankemeier, Jan Van der Greef, Eduard P.AVan Wijk, Mei Wang
Engineering 2019, Volume 5, Issue 5, Pages 916-923 doi: 10.1016/j.eng.2019.03.011
The prevalence of type 2 diabetes mellitus (T2DM) is increasing rapidly worldwide. Because of the limited success of generic interventions, the focus of the disease study has shifted toward personalized strategies, particularly in the early stages of the disease. Traditional Chinese medicine (TCM) is based on a systems view combined with personalized strategies and has improved our knowledge of personalized diagnostics. From a systems biology perspective, the understanding of personalized diagnostics can be improved to yield a biochemical basis for such strategies; for example, metabolomics can be used in combination with other systembased diagnostic methods such as ultra-weak photon emission (UPE). In this study, we investigated the feasibility of using plasma metabolomics obtained from 44 pre-diabetic subjects to stratify the following TCM-based subtypes: Qi-Yin deficiency, Qi-Yin deficiency with dampness, and Qi-Yin deficiency with stagnation. We studied the relationship between plasma metabolomics and UPE with respect to TCM-based subtyping in order to obtain biochemical information for further interpreting disease subtypes. Principal component analysis of plasma metabolites revealed differences among the TCM-based pre-T2DM subtypes. Relatively high levels of lipids (e.g., cholesterol esters and triglycerides) were important discriminators of two of the three subtypes and may be associated with a higher risk of cardiovascular disease. Plasma metabolomics data indicate that the lipid profile is an essential component captured by UPE with respect to stratifying subtypes of T2DM. The results suggest that metabolic differences exist among different TCM-based subtypes of pre-T2DM, and profiling plasma metabolites can be used to discriminate among these subtypes. Plasma metabolomics thus provides biochemical insights into system-based UPE measurements.
Keywords： Type 2 diabetes mellitus Plasma metabolites Disease subtypes Ultra-weak photon emission Correlation networks
One-Step Reverse Osmosis Based on Riverbank Filtration for Future Drinking Water Purification Perspective
Yujia Zhai, Gang Liu, Walter G.J. van der Meer
Engineering 2022, Volume 9, Issue 2, Pages 27-34 doi: 10.1016/j.eng.2021.02.015
The presence of newly emerging pollutants in the aquatic environment poses great challenges for drinking water treatment plants. Due to their low concentrations and unknown characteristics, emerging pollutants cannot be efficiently removed by conventional water treatment processes, making technically, economically, and environmentally friendly water purification technologies increasingly important. This article introduces a one-step reverse osmosis (OSRO) concept consisting of riverbank filtration (RBF) and reverse osmosis (RO) for drinking water treatment. The OSRO concept combines the relatively low-cost natural pretreatment of river water with an advanced engineered purification system. RBF provides a continuous natural source of water with stable water quality and a robust barrier for contaminants. With the pre-removal of particles, organic matter, organic micro-pollutants (OMPs), and microbes, RBF becomes an ideal source for a purification system based on RO membranes, in comparison with the direct intake of surface water. OSRO treatment removes almost 99.9% of the particles, pathogens, viruses, and OMPs, as well as the vast majority of nutrients, and thus meets the requirements for the chlorine-free delivery of drinking water with high biostability. The OSRO treatment is cost effective compared with the standard conventional series of purification steps involving sprinkling filters, softening, and activated carbon. Artificial bank filtration (ABF), which functions as an artificial recharge in combination with a sand filtration system, is proposed as an alternative for RBF in the OSRO concept to supply drinking water from locally available resources. It is also suggested that the OSRO concept be implemented with wind power as an alternative energy source in order to be more sustainable and renewable. An OSRO-based decentralized water system is proposed for water reclaiming and reuse. It is suggested that future water treatment focus on the combination of natural and engineered systems to provide drinking water through technically efficient, financially feasible, resource reusable, and environmentally relevant means.
Keywords： Drinking water treatment River bank filtration Reverse osmosis Artificial bank filtration Water reclamation and reuse
Modeling limit force capacities of high force to volume lead extrusion dampers
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3, Pages 609-622 doi: 10.1007/s11709-021-0724-x
Keywords： extrusion lead dampers upper and lower bound analytical modelling limit force
Title Author Date Type Operation
Vibration analysis of nano-structure multilayered graphene sheets using modified strain gradient theory
Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI
Journal Article
On the applicability of different adhesion models in adhesive particulate flows
Guanqing LIU, Shuiqing LI, Qiang YAO,
Journal Article
Shaking-moment balancing of mechanisms with principal vectors and momentum
V. van der WIJK
Journal Article
Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo
Songbo He, Jeffrey Boom, Rolf van der Gaast, K. Seshan
Journal Article
A Micromotor Catheter for Intravascular Optical Coherence Tomography
Tianshi Wang, Gijs van Soest, Antonius F. W. van der Steen
Journal Article
Intercropping enables a sustainable intensification of agriculture
Wopke VAN DER WERF, Chunjie LI, Wen-Feng CONG, Fusuo ZHANG
Journal Article
Coronary leukocyte activation in relation to progression of coronary artery disease
Marijke A. de Vries,Arash Alipour,Erwin Birnie,Andrew Westzaan,Selvetta van Santen,Ellen van der ZwanLiem,Noëlle van der Meulen,Manuel Castro Cabezas
Journal Article
Soil biodiversity and crop diversification are vital components of healthy soils and agricultural sustainability
A. van der HEIJDEN, Fusuo ZHANG, S. Franz BENDER
Journal Article
Plasma for cancer treatment: How can RONS penetrate through the cell membrane? Answers from computer modeling
Annemie Bogaerts, Maksudbek Yusupov, Jamoliddin Razzokov, Jonas Van der Paal
Journal Article
Mitigating nitrous oxide emissions from agricultural soils by precision management
REES, Juliette MAIRE, Anna FLORENCE, Nicholas COWAN, Ute SKIBA, Tony van der WEERDEN, Xiaotang JU
Journal Article
Developments in genetic modification of cattle and implications for regulation, safety and traceability
Jan Pieter VAN DER BERG, Gijs A. KLETER, Evy BATTAGLIA, Martien A. M. GROENEN, Esther J. KOK
Journal Article
Toward Carbon-Neutral Water Systems: Insights from Global Cities
Ka Leung Lam, Gang Liu, Anne Marieke Motelica-Wagenaar, Jan Peter van der Hoek
Journal Article
Traditional Chinese Medicine-Based Subtyping of Early-Stage Type 2 Diabetes Using Plasma Metabolomics Combined with Ultra-Weak Photon Emission
Min He, Mengmeng Sun, Slavik Koval, Roeland Van Wijk, Thomas Hankemeier, Jan Van der Greef, Eduard P.AVan Wijk, Mei Wang
Journal Article
One-Step Reverse Osmosis Based on Riverbank Filtration for Future Drinking Water Purification
Yujia Zhai, Gang Liu, Walter G.J. van der Meer
Journal Article
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