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1. Insect pests as food and feed

Author:
van Huis, A.
Source:
Journal of insects as food and feed 2020 v.6 no.4 pp. 327-331
ISSN:
2352-4588
Subject:
harvesting,   etc   ; entomophagy; insect pests;     Show all 3 Subjects
Abstract:
... When insects occur in large numbers, and these are often insect pests, people want to get rid of them. In countries where insects are already consumed, the idea of eating them is quickly formed. Harvesting them as food can be a strategy to replace other methods of control. ...
DOI:
10.3920/JIFF2020.x004

2. Functional studies of CpSRP54 in diatoms show that the mechanism of thylakoid protein insertion differs from that in plants and green algae

Author:
Nymark, Marianne; Grønbech Hafskjold, Marthe Caroline; Volpe, Charlotte; Fonseca, Davi de Miranda; Sharma, Animesh; Tsirvouli, Eirini; Serif, Manuel; Winge, Per; Finazzi, Giovanni; Bones, Atle Magnar
Source:
Theplant journal 2021 v.106 no.1 pp. 113-132
ISSN:
0960-7412
Subject:
light harvesting complex,   etc   ; Phaeodactylum tricornutum; phenotype; photosynthesis; radiation resistance; thylakoids;     Show all 6 Subjects
Abstract:
... The chloroplast signal recognition particle 54 kDa (CpSRP54) protein is a member of the CpSRP pathway known to target proteins to thylakoid membranes in plants and green algae. Loss of CpSRP54 in the marine diatom Phaeodactylum tricornutum lowers the accumulation of a selection of chloroplast‐encoded subunits of photosynthetic complexes, indicating a role in the co‐translational part of the CpSRP ...
DOI:
10.1111/tpj.15149

3. The importance of nanofiber hydrophobicity for effective fog water collection

Author:
Knapczyk-Korczak, Joanna; Szewczyk, Piotr K.; Stachewicz, Urszula
Source:
RSC advances 2021 v.11 no.18 pp. 10866-10873
ISSN:
2046-2069
Subject:
water harvesting,   etc   ; geometry; hydrophilicity; hydrophobicity; nanofibers; zeta potential;     Show all 6 Subjects
Abstract:
... To increase fog collection efficiency in a fiber system, controlled wetting properties are desirable. In this work, hydrophobic (PA11) and hydrophilic (PA6) polyamides were tested to verify the surface wetting effect on fog water collection rate. Highly porous fiber meshes were obtained from both polymer solutions. Randomly oriented fibers with average diameter of approximately 150 nm were observe ...
DOI:
10.1039/d1ra00749a

4. In-situ identification of shaking frequency for adaptive vibratory fruit harvesting

Author:
He, Leiying; Liu, Xiaochen; Du, Xiaoqiang; Wu, Chuanyu
Source:
Computers and electronics in agriculture 2020 v.170 pp. 105245
ISSN:
0168-1699
Subject:
harvesting,   etc   ; branches; fruit trees; fruits;     Show all 4 Subjects
Abstract:
... The improvement of the fruit removal efficiency is important in vibratory fruit harvesting. Most relevant research has focused on the detection of dynamic parameters of the tree system by conducting experiments or simulations. The present study proposes a method of identifying multiple natural frequencies of a fruit tree in-situ during vibratory harvesting. An intelligent shaker system consisting ...
DOI:
10.1016/j.compag.2020.105245

5. Loss of mature D1 leads to compromised CP43 assembly in Arabidopsis thaliana

Author:
Shi, Yafei; Che, Yufen; Wang, Yukun; Luan, Sheng; Hou, Xin
Source:
BMC plant biology 2021 v.21 no.1 pp. 106
ISSN:
1471-2229
Subject:
light harvesting complex,   etc   ; Arabidopsis thaliana; biogenesis; mutants; photosystem II; plant biology; proteinases; yeasts;     Show all 8 Subjects
Abstract:
... BACKGROUND: Photosystem II (PSII) is a highly conserved integral-membrane multi-subunit pigment-protein complex. The proteins, pigments, lipids, and ions in PSII need to be assembled precisely to ensure a proper PSII biogenesis. D1 is the main subunit of PSII core reaction center (RC), and is usually synthesized as a precursor D1. D1 maturation by the C-terminal processing protease CtpA is essenti ...
DOI:
10.1186/s12870-021-02888-9

6. Impact of forest harvest intensity and transportation distance on biomass delivered costs within sustainable forest management - A case study in southeastern Canada

Author:
Shadbahr, Jalil; Bensebaa, Farid; Ebadian, Mahmood
Source:
Journal of environmental management 2021 v.284 pp. 112073
ISSN:
0301-4797
Subject:
harvesting equipment,   etc   ; biomass; biorefining; case studies; environmental management; forestry; forests; prioritization; sustainable forestry; transportation; Quebec;     Show all 11 Subjects
Abstract:
... This study compares the delivered cost of forest biomass and its associated GHG emissions for three sizes of biorefinery including 50,000 m³ (small scale), 250,000 m³ (medium scale), and 700,000 m³ (large scale). The proposed methodology in this study includes harvest intensity which is often overlooked. The Pontiac region located in the Province of Quebec (Southeastern Canada) is used as a case s ...
DOI:
10.1016/j.jenvman.2021.112073

7. A joint optimization framework for wheat harvesting and transportation considering fragmental farmlands

Author:
He, P.; Li, J.
Source:
Information processing in agriculture 2021 v.8 no.1 pp. 1-14
ISSN:
2214-3173
Subject:
harvesting,   etc   ; agricultural land; algorithms; combine harvesters; farmers; issues and policy; models; operating costs; transportation; transporters; wheat;     Show all 11 Subjects
Abstract:
... Crop harvesting and transportation should be considered as an integrated system to be optimized aiming to reduce the total operational costs. However, current studies mainly focused on how to reduce operational cost for a link, not from integrated perspective. In this paper, a joint problem which consists of harvesting and transportation problem is implemented and optimized to meet the better sche ...
DOI:
10.1016/j.inpa.2020.04.006

8. Autonomous navigation for a wolfberry picking robot using visual cues and fuzzy control

Author:
Ma, Yue; Zhang, Wenqiang; Qureshi, Waqar S.; Gao, Chao; Zhang, Chunlong; Li, Wei
Source:
Information processing in agriculture 2021 v.8 no.1 pp. 15-26
ISSN:
2214-3173
Subject:
manual harvesting,   etc   ; Lycium barbarum; algorithms; color; controllers; ingredients; labor; orchards; steering systems;     Show all 9 Subjects
Abstract:
... Lycium barbarum commonly known as wolfberry or Goji is considered an important ingredient in Japanese, Korean, Vietnamese, and Chinese food and medicine. It is cultivated extensively in these countries and is usually harvested manually, which is labor-intensive and tedious task. To improve the efficiency of harvesting and reduce manual labor, automatic harvesting technology has been investigated b ...
DOI:
10.1016/j.inpa.2020.04.005

9. How harvesting frequency influence the biomass and lipid productivities of Nannochloropsis sp.

Author:
Ishika, Tasneema; Nwoba, Emeka G.; Kwambai, Cherono; Moheimani, Navid R.
Source:
Algal research 2021 v.53 pp. 102074
ISSN:
2211-9264
Subject:
harvesting frequency,   etc   ; Nannochloropsis; administrative management; algae; biomass production; frequency; lipid content; lipids; mass; ponds; research;     Show all 11 Subjects
Abstract:
... Nannochloropsis is an algal species with a worldwide biotechnological interest. To improve biomass and lipid productivities of this alga while grown in outdoor paddle-wheel driven raceway ponds, different harvesting frequencies were implemented. Four harvesting frequencies (10% harvested, five days (R10F5), 20% harvested, three days (R20F3), 30% harvested, two days (R30F2) and 40% harvested, one d ...
DOI:
10.1016/j.algal.2020.102074

10. Influence of growth on the biological and commercial productivity of Caspian great sturgeon Huso huso

Author:
Bakhshalizadeh, Shima; Zykov, Leonid Alexandrovich; Nasibulina, Botagoz Murasovna; Kurochkina, Tatyana Fedorovna; Fazio, Francesco
Source:
Aquaculture 2021 v.533 pp. 736139
ISSN:
0044-8486
Subject:
harvesting,   etc   ; Huso huso; annuals; biomass; fingerlings; fish culture; fisheries management; hatcheries; juveniles; models; mortality; reproduction; sturgeon;     Show all 13 Subjects
Abstract:
... Fisheries management has expanded from a traditional focus to a more holistic model based on a model describing the change in the number of generations of fish under the influence of age-dependent natural mortality and harvesting. We calculated the abundance, biomass, production, natural, total loss and catches from the conditional population of great sturgeon resulting from the replenishment of 1 ...
DOI:
10.1016/j.aquaculture.2020.736139

11. Self-aggregation of zinc bacteriochlorophyll-d analog bearing B-ring reduced chlorin and 17-acrylate residue

Author:
Funakoshi, Daichi; Matsubara, Shogo; Tamiaki, Hitoshi
Source:
Tetrahedron 2021 v.81 pp. 131853
ISSN:
0040-4020
Subject:
light harvesting complex,   etc   ; bacteria; bacteriochlorophyll; chlorins; hexane; models; photosynthesis; tetrahydrofuran; wavelengths; zinc;     Show all 10 Subjects
Abstract:
... As a model of bacteriochlorophyll(BChl)-d specifically found in major light-harvesting antennae (chlorosomes) of photosynthetic green bacteria, zinc methyl 7,8-dihydro-17,18,17¹,17²-tetradehydro-bacteriopheophorbide-d was prepared from naturally occurring BChl-a through the double dehydration of the cis-17,18-diol. The synthetic B-ring reduced Zn-BChl-d analog bearing the 17-acrylate residue in te ...
DOI:
10.1016/j.tet.2020.131853

12. Recent progress in hot exciton materials for organic light-emitting diodes

Author:
Xu, Yuwei; Xu, Pei; Hu, Dehua; Ma, Yuguang
Source:
Chemical Society reviews 2021 v.50 no.2 pp. 1030-1069
ISSN:
1460-4744
Subject:
harvesting,   etc   ; crossing; design; fluorescence; harness; light emitting diodes; materials; society; structure-activity relationships; synthesis;     Show all 10 Subjects
Abstract:
... According to Kasha's rule, high-lying excited states usually have little effect on fluorescence. However, in some molecular systems, the high-lying excited states partly or even mainly contribute to the photophysical properties, especially in the process of harvesting triplet excitons in organic electroluminescent devices. In the current review, we focus on a type of organic light-emitting diode ( ...
DOI:
10.1039/d0cs00391c

13. Sandwiched nets for efficient direction-independent fog collection

Author:
Li, Jiaqian; Li, Wei; Han, Xing; Wang, Liqiu
Source:
Journal of colloid and interface science 2021 v.581 pp. 545-551
ISSN:
0021-9797
Subject:
water harvesting,   etc   ; artificial membranes; drainage; droplets; hydrophilicity; hydrophobicity; mists; water shortages;     Show all 8 Subjects
Abstract:
... As an effective strategy to alleviate the global water shortage, the Janus membrane has been widely developed to harvest the fog droplets because of its advantages of timely drainage and directional droplet delivery. However, Janus membrane is extremely susceptible to the direction of the fog stream, which changes dynamically in nature. In this work, we develop a three-layer sandwiched fog collect ...
DOI:
10.1016/j.jcis.2020.07.153

14. Sea cucumber fishery in Turkey: Management regulations and their efficiency

Author:
Dereli̇, Hakkı; Aydın, Mehmet
Source:
Regional studies in marine science 2021 v.41 pp. 101551
ISSN:
2352-4855
Subject:
harvesting,   etc   ; Holothuroidea; fisheries; fisheries law; fishing boats; markets; Mediterranean region; Turkey (country);     Show all 8 Subjects
Abstract:
... Sea cucumbers have a commercial importance worldwide but are facing over-exploitation and population collapse. The aim of this study was to document the fishing condition and illegal fishing on sea cucumber fishery in the Mediterranean coast of Turkey based on fishery reports, to ascertain the implementation and efficiency of management regulations. Sea cucumber fishing began in 1996 and expanded, ...
DOI:
10.1016/j.rsma.2020.101551

15. Leaf venation patterns as a model for bioinspired fog harvesting

Author:
Qasemi, Elnaz; Mahdavinejad, Mohammadjavad; Aliabadi, Morteza; Zarkesh, Afsaneh
Source:
Colloids and surfaces 2020 v.603 pp. 125170
ISSN:
0927-7757
Subject:
harvesting,   etc   ; leaf venation; liquids; models; water shortages;     Show all 5 Subjects
Abstract:
... Collecting water from the atmosphere has been studied to address the global water shortage. One main challenge in this method is designing a patterned surface to maximize the water collection efficiency. In this work, we propose a bioinspired categorization method for the types of surfaces based on leaf venation patterns that are fabricated by direct laser writing. Our method introduces three cate ...
DOI:
10.1016/j.colsurfa.2020.125170

16. Analysis of the interaction between end-effectors, soil and asparagus during a harvesting process based on discrete element method

Author:
Li, Jinguang; Liu, Xuemei; Zou, Liangliang; Yuan, Jin; Du, Shuai
Source:
Biosystems engineering 2020 v.196 pp. 127-144
ISSN:
1537-5110
Subject:
harvesting,   etc   ; asparagus spears; biomechanics; models; robots; soil;     Show all 6 Subjects
Abstract:
... To meet the high-efficiency and low-damage harvesting requirements for white asparagus, two novel types of end-effectors were designed to selectively harvest white asparagus. One is the transverse-cut end-effector (TCEE), while the other is the clip-cut end-effector (CCEE). To select the best harvesting scheme and achieve a suitable range in driving forces, we propose a discrete element method (DE ...
DOI:
10.1016/j.biosystemseng.2020.05.018

17. 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

18. Using color and 3D geometry features to segment fruit point cloud and improve fruit recognition accuracy

Author:
Wu, Gang; Li, Bin; Zhu, Qibing; Huang, Min; Guo, Ya
Source:
Computers and electronics in agriculture 2020 v.174 pp. 105475
ISSN:
0168-1699
Subject:
harvesting,   etc   ; algorithms; color; data collection; fruits; robots;     Show all 6 Subjects
Abstract:
... Fruit image segmentation is an essential step to distinguish fruits from the background. In order to improve the fruits recognition accuracy for harvesting robots in three-dimensional (3D) space, a method with the fusion of color and 3D geometry features for fruit point cloud segmentation was proposed in this study. The local descriptor was applied to obtain the candidate regions, and the global d ...
DOI:
10.1016/j.compag.2020.105475

19. Effect of disorder and polarization sequences on two-dimensional spectra of light-harvesting complexes

Author:
Kramer, Tobias; Rodríguez, Mirta
Source:
Photosynthesis research 2020 v.144 no.2 pp. 147-154
ISSN:
0166-8595
Subject:
light harvesting complex,   etc   ; energy transfer; spectroscopy;     Show all 3 Subjects
Abstract:
... Two-dimensional electronic spectra (2DES) provide unique ways to track the energy transfer dynamics in light-harvesting complexes. The interpretation of the peaks and structures found in experimentally recorded 2DES is often not straightforward, since several processes are imaged simultaneously. The choice of specific pulse polarization sequences helps to disentangle the sometimes convoluted spect ...
DOI:
10.1007/s11120-019-00699-6

20. 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