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1. Optimization of patterned polysulfone membranes for microalgae harvesting

Author:
Zhao, Zhenyu; Ilyas, Ayesha; Muylaert, Koenraad; Vankelecom, Ivo F.J.
Source:
Bioresource technology 2020 v.309 pp. 123367
ISSN:
0960-8524
Subject:
harvesting,   etc   ; fluid mechanics; fouling; microalgae; polyethylene glycol;     Show all 5 Subjects
Abstract:
... Membranes with a wave pattern on the membrane surface are now proposed for the first time to alleviate microalgal fouling and increase the membrane flux. The membrane morphology was observed via scanning electron microscope, and the clean water permeance, microalgae harvesting efficiency and membrane flux in a real broth were determined to investigate the effects of polysulfone (PSF) and polyethyl ...
DOI:
10.1016/j.biortech.2020.123367

2. Tunable, multi-modal, and multi-directional vibration energy harvester based on three-dimensional architected metastructures

Author:
Sun, Rujie; Li, Qinyu; Yao, Jianfei; Scarpa, Fabrizio; Rossiter, Jonathan
Source:
Applied energy 2020 v.264 pp. 114615
ISSN:
0306-2619
Subject:
harvesting,   etc   ; deformation; electronics; energy; geometry; topology; vibration;     Show all 7 Subjects
Abstract:
... Conventional vibration energy harvesters based on two-dimensional planar layouts have limited harvesting capacities due to narrow frequency bandwidth and because their vibratory motion is mainly restricted to one plane. Three-dimensional architected structures and advanced materials with multifunctional properties are being developed in a broad range of technological fields. Structural topologies ...
DOI:
10.1016/j.apenergy.2020.114615

3. Team Inspection in the Management of Common-Pool Resources When Corruption is Present

Author:
Xu, Chenyang; van’t Veld, Klaas
Source:
Environmental and resource economics 2020 v.75 no.3 pp. 553-584
ISSN:
0924-6460
Subject:
harvesting,   etc   ; developing countries; fisheries; mathematical models; teams;     Show all 5 Subjects
Abstract:
... Corrupt enforcement of harvesting restrictions hampers the management of common-pool resources in many developing countries, contributing in particular to widespread illegal fishing and logging. In this paper, we examine a simple intervention that may mitigate the effects of such corruption if, as is often the case due to congestion, stock, or pecuniary externalities, harvesters’ effort levels are ...
DOI:
10.1007/s10640-019-00399-8

4. Diverse pathways—common phenomena: comparing transitions of urban rainwater harvesting systems in Stockholm, Berlin and Barcelona

Author:
Suleiman, Lina; Olofsson, Bo; Saurí, David; Palau-Rof, Laura; García Soler, Natàlia; Papasozomenou, Ourania; Moss, Timothy
Source:
Journal of environmental planning and management 2020 v.63 no.2 pp. 369-388
ISSN:
1360-0559
Subject:
water harvesting,   etc   ; cities; drainage systems; landscapes; rain;     Show all 5 Subjects
Abstract:
... Urban rainwater management is the terrain of varied initiatives that challenge existing drainage systems. The initiatives that this article refers to as Urban Rainwater Harvesting (URH), promise a more sustainable urban water approach; however, they remain isolated “niche” projects. The article aims to investigate challenges and opportunities for mainstreaming alternative URHs as sociotechnical sy ...
DOI:
10.1080/09640568.2019.1589432

5. Hierarchical Micro-Nanostructured Surfaces for Isotropic/Anisotropic Liquid Transport

Author:
Shrestha, Ramesh; Yu, Bowen; Yang, Qian; Gong, Wei; Shen, Sheng
Source:
Langmuir 2020 v.36 no.6 pp. 1569-1573
ISSN:
1520-5827
Subject:
water harvesting,   etc   ; anisotropy; geometry; isotropy; oxidation;     Show all 5 Subjects
Abstract:
... The control of liquid transport using hierarchical micro-nanostructured surfaces is of significant interest for a broad range of applications, including thermal management, digital lab-on-chip, self-cleaning surfaces, antifogging, and water harvesting, among others. Although a variety of fabrication techniques can be utilized to produce micro/nanostructured patterns for controlling liquid transpor ...
DOI:
10.1021/acs.langmuir.9b03800

6. Correction to: A Scenario-Driven Assessment of the Economic Feasibility of Rainwater Harvesting Using Optimized Storage

Author:
Nnaji, Chidozie Charles; Aigbavboa, Clinton
Source:
Water resources management 2020 v.34 no.2 pp. 885-886
ISSN:
0920-4741
Subject:
water harvesting,   etc   ; economic feasibility; water shortages;     Show all 3 Subjects
Abstract:
... Unfortunately the original version of this article contains a mistake. The correct Fig. 1 is shown here. ...
DOI:
10.1007/s11269-020-02494-8

7. Finned spacer for enhancing the impact of air bubbles for membrane fouling control in Chlorella vulgaris filtration

Author:
Razak, Nik Nurul Ain Nabilah; Rahmawati, Ratri; Bilad, Muhammad Roil; Pratiwi, Amalia Enggar; Elma, Muthia; Nawi, Normi Izati Mat; Jaafar, Juhana; Lam, Man Kee
Source:
Bioresource technology reports 2020 v.11 pp. 100429
ISSN:
2589-014X
Subject:
harvesting,   etc   ; Chlorella vulgaris; aeration; air; biomass; bubbles; fouling; microalgae; microfiltration;     Show all 9 Subjects
Abstract:
... Membrane filtration offers appreciable promise as an effective process to harvest microalgae biomass but largely limited by membrane fouling. This study proposed a new spacer system for fouling control in Chlorella vulgaris filtration. Results demonstrate the effectiveness of finned spacer in directing the air bubbles toward the membrane surface thus improve their contacts and their foulant remova ...
DOI:
10.1016/j.biteb.2020.100429

8. The contribution of fruit and leaves to the dynamic response of secondary branches of orange trees

Author:
Castro-Garcia, Sergio; Aragon-Rodriguez, Fernando; Arias-Calderón, Rocío; Sola-Guirado, Rafael R.; Gil-Ribes, Jesús A.
Source:
Biosystems engineering 2020 v.193 pp. 149-156
ISSN:
1537-5110
Subject:
harvesting,   etc   ; Citrus; accelerometers; branches; fruit trees; fruits; leaves; oranges; vibration;     Show all 9 Subjects
Abstract:
... The current commercial technologies for mass harvesting fruit are based on the application of forced vibration to the tree, which is transmitted to the fruits causing their detachment. The dynamic behaviour of the plant under forced vibration is of special interest to improve the design and use of the machinery. The objective of this work is to determine the effect of fruit and leaves on the dynam ...
DOI:
10.1016/j.biosystemseng.2020.02.019

9. Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation

Author:
Hawari, Alaa H.; Alkhatib, Afnan M.; Das, Probir; Thaher, Mahmoud; Benamor, Abdelbaki
Source:
Journal of environmental management 2020 v.260 pp. 110106
ISSN:
0301-4797
Subject:
harvesting,   etc   ; Tetraselmis; aluminum; biomass; dielectrophoresis; electrocoagulation; electrodes; electrolysis; energy; microalgae;     Show all 10 Subjects
Abstract:
... In this study, a new electrocoagulation electrode configuration has been investigated in order to induce dielectrophoretic (DEP) force for the enhanced harvesting of marine microalgae (Tetraselmis sp.). Asymmetrical aluminum electrodes with an alternative current power supply were used. The impact of electrode configuration, current density and electrolysis time were evaluated. A maximum algal har ...
DOI:
10.1016/j.jenvman.2020.110106

10. Successes & challenges in the atomistic modeling of light-harvesting and its photoregulation

Author:
Cupellini, Lorenzo; Bondanza, Mattia; Nottoli, Michele; Mennucci, Benedetta
Source:
Biochimica et biophysica acta 2020 v.1861 no.4 pp. 148049
ISSN:
0005-2728
Subject:
light harvesting complex,   etc   ; light intensity; models; molecular dynamics; photosynthesis;     Show all 5 Subjects
Abstract:
... Light-harvesting is a crucial step of photosynthesis. Its mechanisms and related energetics have been revealed by a combination of experimental investigations and theoretical modeling. The success of theoretical modeling is largely due to the application of atomistic descriptions combining quantum chemistry, classical models and molecular dynamics techniques. Besides the important achievements obt ...
DOI:
10.1016/j.bbabio.2019.07.004

11. Towards depth estimation in a single aerial image

Author:
Pellegrin, Luis; Martinez-Carranza, José
Source:
International journal of remote sensing 2020 v.41 no.5 pp. 1970-1985
ISSN:
1366-5901
Subject:
harvesting,   etc   ; aerial photography; cameras; data collection; remote sensing; urban areas;     Show all 6 Subjects
Abstract:
... Nowadays, depth estimation from a single image is a task that has been successfully addressed by Convolutional Neural Network (CNN) architectures. In this regard, several authors have taken advantage of depth datasets publicly available to the scientific community to train their CNN-based methods. From a project of Karlsruhe Institute of Technology and Toyota Technological Institute at Chicago has ...
DOI:
10.1080/01431161.2019.1681601

12. Protected areas reduce poaching but not overall anthropogenic mortality of North American mammals

Author:
Hill, Jacob E.; DeVault, Travis L.; Belant, Jerrold L.
Source:
Global ecology and conservation 2020 v.21 pp. e00810
ISSN:
2351-9894
Subject:
harvesting,   etc   ; conservation areas; data collection; mammals; mortality; telemetry; North America;     Show all 7 Subjects
Abstract:
... Protected areas are established for diverse conservation strategies, but their effectiveness for conserving species varies widely. We compiled studies that used telemetry to determine cause-specific mortality of North American mammals and compared mortality sources of animals monitored in areas classified as protected by the International Union for Conservation of Nature and non-protected areas. O ...
DOI:
10.1016/j.gecco.2019.e00810

13. Harvesting Electricity from Water Evaporation through Microchannels of Natural Wood

Author:
Zhou, Xiaobing; Zhang, Wenluan; Zhang, Chenglin; Tan, Yao; Guo, Junchang; Sun, Zhengnan; Deng, Xu
Source:
ACS applied materials & interfaces 2020 v.12 no.9 pp. 11232-11239
ISSN:
1944-8252
Subject:
harvesting,   etc   ; anisotropy; electric potential difference; electricity; electrolytes; evaporation; trees; wood;     Show all 8 Subjects
Abstract:
... When external pressure drives an electrolyte solution in a capillary tube with a charged inner surface, we obtain a streaming potential/current. This effect is also manifested when water flows through the microchannels of a tree, which is driven by capillary pressure and natural evaporation. Thus, by making use of natural evaporation, we took advantage of the anisotropic three-dimensional wood str ...
DOI:
10.1021/acsami.9b23380

14. A scale-adaptive method for urban rainwater harvesting simulation

Author:
Lúcio, Catarina; Silva, Cristina Matos; Sousa, Vitor
Source:
Environmental science and pollution research international 2020 v.27 no.5 pp. 4557-4570
ISSN:
0944-1344
Subject:
water harvesting,   etc   ; Mediterranean climate; buildings; coasts; equations; models; rain; Portugal;     Show all 8 Subjects
Abstract:
... At a building or dwelling scale, accurate evaluation of the water savings potential from rainwater harvesting (RWH) can be achieved by simulating the performance of the RWH system using a balance equations model. At an urban scale, water savings potential is usually estimated from the balance between the annual rainfall and annual water consumption. This approach has limited accuracy since it assu ...
DOI:
10.1007/s11356-019-04889-6

15. Effect of harvest region shape, biomass yield, and plant location on optimal biofuel facility size

Author:
Jenkins, Timothy L.; Jin, Enze; Sutherland, John W.
Source:
Forest policy and economics 2020 v.111 pp. 102053
ISSN:
1389-9341
Subject:
harvesting,   etc   ; biofuels; biomass production; forest resources; fuel production; transportation;     Show all 6 Subjects
Abstract:
... The development of biofuel production facilities using renewable biomass faces many hurdles. One of these is determining the appropriate size of the facility under different uncertain conditions. Facility size is affected by many factors including transportation cost rate, biomass yields, facility location, and the availability of harvest region. This research focuses on understanding the impact o ...
DOI:
10.1016/j.forpol.2019.102053

16. Optimal Design of Multilayer Fog Collectors

Author:
Azeem, Musaddaq; Guérin, Adrien; Dumais, Thomas; Caminos, Luis; Goldstein, Raymond E.; Pesci, Adriana I.; de Dios Rivera, Juan; Torres, María Josefina; Wiener, Jakub; Campos, José Luis; Dumais, Jacques
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 7736-7743
ISSN:
1944-8252
Subject:
water harvesting,   etc   ; collectors; desertification; dew; porosity; prototypes; water vapor;     Show all 7 Subjects
Abstract:
... The growing concerns over desertification have spurred research into technologies aimed at acquiring water from nontraditional sources such as dew, fog, and water vapor. Some of the most promising developments have focused on improving designs to collect water from fog. However, the absence of a shared framework to predict, measure, and compare the water collection efficiencies of new prototypes i ...
DOI:
10.1021/acsami.9b19727

17. A graphic analysis method of electrochemical systems for low-grade heat harvesting from a perspective of thermodynamic cycles

Author:
Chen, Ruihua; Deng, Shuai; Xu, Weicong; Zhao, Li
Source:
Energy 2020 v.191 pp. 116547
ISSN:
0360-5442
Subject:
harvesting,   etc   ; Gibbs free energy; electrochemistry; energy conversion; heat;     Show all 5 Subjects
Abstract:
... Various electrochemical approaches for low-grade heat harvesting have been investigated in recent years. However, most current studies are based on electrochemistry methods, while thermodynamic methods that focus on the general energy conversion mechanism are relatively rare. In this study, to quantify the chemical energy of electrochemical systems, Gibbs free energy is introduced as the third dim ...
DOI:
10.1016/j.energy.2019.116547

18. Skills development of mechanized softwood sawtimber cut-to-length harvester operators on the Highveld of South Africa

Author:
Wenhold, Roland; Ackerman, Pierre; Ackerman, Simon; Gagliardi, Kayla
Source:
International journal of forest engineering 2020 v.31 no.1 pp. 9-18
ISSN:
1913-2220
Subject:
harvesting,   etc   ; clearcutting; learning; mechanization; models; sawlogs; softwood; trees; South Africa;     Show all 9 Subjects
Abstract:
... In this study, a South African pine sawtimber mechanized cut-to-length harvesting operation was analyzed with the objective of modelling productivity development learning curves of beginner operators in both clear-felling and thinning operations. Trainee operators were selected based on the results of an assortment of psychometric testing and subsequently completed several harvester simulator test ...
DOI:
10.1080/14942119.2019.1578561

19. Excellent fog droplets collector via an extremely stable hybrid hydrophobic-hydrophilic surface and Janus copper foam integrative system with hierarchical micro/nanostructures

Author:
Zhou, Hui; Jing, Xueshan; Guo, Zhiguang
Source:
Journal of colloid and interface science 2020 v.561 pp. 730-740
ISSN:
0021-9797
Subject:
harvesting; water harvesting,   etc   ; cooling; copper; copper nanoparticles; deserts; droplets; foams; heat; hot water treatment; irradiation; photocatalysis; ultraviolet radiation; water shortages; wettability;     Show all 15 Subjects
Abstract:
... As water shortages increase in semi-arid deserts and inland areas, the collection of fog has attracted tremendous attention in recent years. Different types of fog collectors have been widely reported in the past decade. Inspired by the creatures, a micro/nano-structured hybrid hydrophobic-hydrophilic surface was prepared via a simple hydrothermal method. In addition, the Janus performance was obt ...
DOI:
10.1016/j.jcis.2019.11.048

20. Development and performance of halophilic microalgae-colonized aerobic granular sludge for treating seawater-based wastewater

Author:
Rajitha, K.; Sarvajith, M.; Venugopalan, V.P.; Nancharaiah, Y.V.
Source:
Bioresource technology reports 2020 v.11 pp. 100432
ISSN:
2589-014X
Subject:
harvesting,   etc   ; bacteria; biofilm; biomass; color; culture flasks; microalgae; phosphates; seawater; sludge; total nitrogen; wastewater; wastewater treatment;     Show all 13 Subjects
Abstract:
... This study was aimed to evaluate granulation of autochthonous halophilic bacteria and biological nutrient removal under saline conditions. For this, shake-flasks were inoculated with phototrophic biofilm and operated in fill-draw mode under phototrophic and non-phototrophic conditions by feeding seawater-based wastewater. Rapid granulation of autochthonous biofilm microbes was achieved under seawa ...
DOI:
10.1016/j.biteb.2020.100432