U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "biomass" Remove constraint Subject: "biomass"
Start Over

Search

122,572  Search Results

« Previous | 1 - 20 of 122,572 |
Number of results to display per page

Search Results

1. Estimation of Hansen solubility parameters with regularized regression for biomass conversion products: An application of adaptable group contribution

Author:
Terrell Evan
Source:
Chemical engineering science 2022 v.248 no.PtB pp. 117184
ISSN:
0009-2509
Subject:
biomass,   etc   ; computer software; forestry; linear models; paper; prediction; pyrolysis oils; solubility;     Show all 8 Subjects
Abstract:
... There is increasing growth in research of the development, upgrading and valorization of forestry and agriculture-derived products for applications in fuels, chemicals, and materials. Many biochemical and thermochemical biomass conversion technologies yield unique products for which laboratory characterization of structure and properties is still an ongoing challenge. Historically, popular approac ...
Handle:
10113/7709593
DOI:
10.1016/j.ces.2021.117184

2. Detection of polycyclic aromatic hydrocarbons using a high performance-single particle aerosol mass spectrometer

Author:
Yao Zhang; Chenglei Pei; Jinwen Zhang; Chunlei Cheng; Xiufeng Lian; Mubai Chen; Bo Huang; Zhong Fu; Zhen Zhou; Mei Li
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 806-822
ISSN:
1001-0742
Subject:
biomass,   etc   ; aerosols; algorithms; comparative study; mass spectrometry; spectrometers; China;     Show all 7 Subjects
Abstract:
... The real-time detection of the mixing states of polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs in ambient particles is of great significance for analyzing the source, aging process, and health effects of PAHs and nitro-PAHs; yet there is still few effective technology to achieve this type of detection. In this study, 11 types of PAH and nitro-PAH standard samples were analyzed using a high ...
DOI:
10.1016/j.jes.2022.02.003

3. Origins of black carbon from anthropogenic emissions and open biomass burning transported to Xishuangbanna, Southwest China

Author:
Xuyan Liu; Siwen Wang; Qianqian Zhang; Chunlai Jiang; Linlin Liang; Shihao Tang; Xingying Zhang; Xiuzhen Han; Lin Zhu
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 277-289
ISSN:
1001-0742
Subject:
biomass,   etc   ; aerosols; air quality; carbon; emissions factor; humans; China; India; Laos; Myanmar;     Show all 10 Subjects
Abstract:
... Black carbon (BC) has importance regarding aerosol composition, radiative balance, and human exposure. This study adopted a backward-trajectory approach to quantify the origins of BC from anthropogenic emissions (BCAn) and open biomass burning (BCBB) transported to Xishuangbanna in 2017. Haze months, between haze and clean months, and clean months in Xishuangbanna were defined according to daily P ...
DOI:
10.1016/j.jes.2021.12.020

4. Wheat straw return can lead to biogenic toluene emissions

Author:
Ting Wu; Xiaoyu Zhao; Mengdi Liu; Juan Zhao; Xinming Wang
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 281-290
ISSN:
1001-0742
Subject:
microbial biomass,   etc   ; carbon dioxide; fungi; toluene; volatile organic compounds; wheat straw; China;     Show all 7 Subjects
Abstract:
... As a common practice in agricultural system, straw return has been reported to release a large number of trace gases and attracted much attention. However, the role of straw return in toluene emission remains poorly understood. In this study we measured the emissions of toluene as well as other 50 volatile organic compounds (VOCs) from wheat straw return for 66 days under flooded and non-flooded c ...
DOI:
10.1016/j.jes.2021.08.050

5. Biomass chemical looping gasification for syngas production using modified hematite as oxygen carriers

Author:
Cong Jiang; Xiaoyu Jin; Tingting Xu; Bo Xiao; Zhiquan Hu; Xun Wang
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 171-184
ISSN:
1001-0742
Subject:
biomass,   etc   ; calcium oxide; clean energy; feedstocks; gasification; hematite; oxygen; steam; synthesis gas; temperature; China;     Show all 11 Subjects
Abstract:
... Syngas is a clean energy carrier and a major industrial feedstock. In this paper, syngas was produced via biomass chemical looping gasification (CLG) process. Hematite, the most common Fe-based oxygen carrier (OC), was modified with different metal oxides (CeO₂, CaO and MgO) by the impregnation method. The hematite modified by CeO₂, CaO and MgO was namely as CeO₂-hematite (CeO₂-H), CaO-hematite (C ...
DOI:
10.1016/j.jes.2021.11.028

6. Effective removal of phosphorus from high phosphorus steel slag using carbonized rice husk

Author:
Zhongliang Wang; Yanping Bao; Dazhi Wang; Min Wang
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 156-164
ISSN:
1001-0742
Subject:
biomass,   etc   ; carbon; environmental impact; fossil fuels; greenhouse gases; iron; phosphorus; rice hulls; slags; steel; temperature; China;     Show all 12 Subjects
Abstract:
... High phosphorus steel slag and carbonized rice husk are two common wastes characterized by high generation and low secondary use values. Through the reduction of high phosphorus steel slag by biomass, both wastes were fully utilized, thus reducing the negative impact on the environment. In this study, variables such as temperature, time, and amount of reactants were changed to determine the optima ...
DOI:
10.1016/j.jes.2021.10.024

7. Manipulating grading strategy for the efficient harvesting of industrial poplar plantations

Author:
Raffaele Spinelli; Barnabas Kovac; Patrik Heger; David Helig; Balint Heil; Gàbor Kovàcs; Natascia Magagnotti
Source:
International journal of forest engineering 2022 v.33 no.2 pp. 98-107
ISSN:
1913-2220
Subject:
biomass,   etc   ; Populus; forests;     Show all 3 Subjects
Abstract:
... New short rotation poplar plantations yield a mix of biomass and logs, whereby the latter are used for board production and represent the most valuable component. Therefore, there is an interest in maximizing log yield, which must be balanced against the incremental time consumption incurred for manufacturing any additional logs. This study explored the optimization potential of manipulating log s ...
DOI:
10.1080/14942119.2022.2034404

8. Nutrient identity modifies the destabilising effects of eutrophication in grasslands

Author:
Oliver Carroll; Evan Batzer; Siddharth Bharath; Elizabeth T. Borer; Sofía Campana; Ellen Esch; Yann Hautier; Timothy Ohlert; Eric W. Seabloom; Peter B. Adler; Jonathan D. Bakker; Lori Biederman; Miguel N. Bugalho; Maria Caldeira; Qingqing Chen; Kendi F. Davies; Philip A. Fay; Johannes M. H. Knops; Kimberly Komatsu; Jason P. Martina; Kevin S. McCann; Joslin L. Moore; John W. Morgan; Taofeek O. Muraina; Brooke Osborne; Anita C. Risch; Carly Stevens; Peter A. Wilfahrt; Laura Yahdjian; Andrew S. MacDougall
Source:
Ecology letters 2022 v.25 no.4 pp. 754-765
ISSN:
1461-023X
Subject:
aboveground biomass; biomass production,   etc   ; eutrophication; nitrogen; phosphorus; phytomass; potassium; species richness; standard deviation;     Show all 9 Subjects
Abstract:
... Nutrient enrichment can simultaneously increase and destabilise plant biomass production, with co‐limitation by multiple nutrients potentially intensifying these effects. Here, we test how factorial additions of nitrogen (N), phosphorus (P) and potassium with essential nutrients (K+) affect the stability (mean/standard deviation) of aboveground biomass in 34 grasslands over 7 years. Destabilisatio ...
DOI:
10.1111/ele.13946

9. Microtopographic heterogeneity mediates the soil respiration response to grazing in an alpine swamp meadow on the Tibetan Plateau

Author:
Jingxue Zhao; Ruicheng Li; Lihua Tian; Guangpeng Qu; Gao-Lin Wu
Source:
Catena 2022 v.213 pp. 106158
ISSN:
0341-8162
Subject:
aboveground biomass; belowground biomass; microbial biomass,   etc   ; catenas; meadows; microbial carbon; microrelief; seasonal variation; soil organic carbon; soil respiration; soil temperature; spatial variation; swamps; China;     Show all 14 Subjects
Abstract:
... Soil respiration (Rs) is a major component of terrestrial carbon cycling, which varies greatly with spatial heterogeneity or under grazing. There is scant evidence for the interactive effects of microtopography and grazing on Rs, particularly in alpine swamp meadow ecosystems where hummocks and hollows are common microtopographic features. We conducted a grazing exclusion experiment in an alpine s ...
DOI:
10.1016/j.catena.2022.106158

10. A critical review on production, modification and utilization of biochar

Author:
Yanqi Xie; Liang Wang; Hailong Li; Lena Johansson Westholm; Lara Carvalho; Eva Thorin; Zhixin Yu; Xinhai Yu; Øyvind Skreiberg
Source:
Journal of analytical and applied pyrolysis 2022 v.161 pp. 105405
ISSN:
0165-2370
Subject:
biomass,   etc   ; biochar; feedstocks; pyrolysis;     Show all 4 Subjects
Abstract:
... There has been an increased interest in the production of sustainable biochar in the past years, as biochar shows versatile physicochemical properties and, can have a wide applicability in diverse fields. Comprehensive studies have been made to characterize biochar produced from various biomass materials, using different production technologies and under different process conditions. However, rese ...
DOI:
10.1016/j.jaap.2021.105405

11. Automatic length estimation of free-swimming fish using an underwater 3D range-gated camera

Author:
Petter Risholm; Ahmed Mohammed; Trine Kirkhus; Sigmund Clausen; Leonid Vasilyev; Ole Folkedal; Øistein Johnsen; Karl Henrik Haugholt; Jens Thielemann
Source:
Aquacultural engineering 2022 v.97 pp. 102227
ISSN:
0144-8609
Subject:
biomass,   etc   ; algorithms; cameras; fish;     Show all 4 Subjects
Abstract:
... Camera estimation of fish size in aquaculture production and fisheries is crucial for enabling knowledge-based decision making. Automatic estimation of fish lengths on an individual and population basis are key steps to automate biomass estimation. We propose to use an underwater 3D range-gated camera for accurate fish-length estimation of free-swimming fish. The proposed algorithm requires no man ...
DOI:
10.1016/j.aquaeng.2022.102227

12. Controlled Synthesis of Dibenzenetriol and Diquinone from 1,2,4-Benzenetriol by Catalytic Aerobic Oxidation

Author:
Yao Zhong; Jin Zhong; Taimei Cai; Shixia Chen; Jun Wang; Zheling Zeng; Qiang Deng
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.10 pp. 3255-3263
ISSN:
2168-0485
Subject:
biomass,   etc   ; green chemistry; oxidation;     Show all 3 Subjects
Abstract:
... The preparation of diphenol and diquinone from biomass is significant for sustainable fine chemicals, which are currently developed from fossil-based or lignin-derived phenols. Herein, a class of transition-metal oxides (CeO₂, MoO₃, and MoO₃/CeO₂) with different O₂ activation abilities and basicity was prepared for the catalytic aerobic oxidation of 1,2,4-benzenetriol to dibenzenetriol and diquino ...
DOI:
10.1021/acssuschemeng.1c07823

13. Effect of two vs. three year harvest intervals on yields of Short Rotation Coppice (SRC) willow

Author:
Christopher R. Johnston; Linda R. Walsh; Alistair R. McCracken
Source:
Biomass and bioenergy 2022 v.156 pp. 106303
ISSN:
0961-9534
Subject:
biomass,   etc   ; bioenergy; coppicing; males;     Show all 4 Subjects
Abstract:
... Five genotypes of Short Rotation Coppice (SRC) willow: ‘Beagle’ ((S. viminalis ‘L810203’ x viminalis ‘L81102’) x ‘Astrid’ x male parent unknown), ‘Olof’ (S. viminalis ‘Bowles Hybrid’) x ((S. schwerinii ‘L79069’) x ((S. viminalis ‘L78195’ x viminalis ‘L78101’) ‘Orm’) ‘Bjorn’). ‘Ashton Stott’ (S.viminalis ‘Bowles Hybrid’) x S.dasyclados ‘Korso’, ‘Tora’ (S. schwerinii ‘L79069’) x ((S. viminalis ‘L781 ...
DOI:
10.1016/j.biombioe.2021.106303

14. Phytomining of noble metals – A review

Author:
Truong Dinh; Zsolt Dobo; Helga Kovacs
Source:
Chemosphere 2022 v.286 pp. 131805
ISSN:
0045-6535
Subject:
biomass,   etc   ; circular economy; phytoaccumulation;     Show all 3 Subjects
Abstract:
... Phytomining of noble metals (NMs) offers a promising possibility of metal extraction at sites where traditional mining activities or recovering NMs from low-grade minerals are not competitive. In addition to conventional mining, producing NMs from secondary resources strengthening the circular economy has been paid worldwide attention. The review presented in this paper links three scientific area ...
DOI:
10.1016/j.chemosphere.2021.131805

15. Acacia dealbata Link. Aboveground Biomass Assessment: Sustainability of Control and Eradication Actions to Reduce Rural Fires Risk

Author:
Leonel J. R. Nunes; Catarina I. R. Meireles; Carlos J. Pinto Gomes; Nuno M. C. Almeida Ribeiro
Source:
Fire 2022 v.5 no.1 pp. -
ISSN:
2571-6255
Subject:
aboveground biomass; woody biomass,   etc   ; Acacia dealbata; fuel loading; indigenous species; invasive species; models; risk; Portugal;     Show all 9 Subjects
Abstract:
... Invasive species are an environmental problem affecting worldwide ecosystems. In the case of Acacia dealbata Link., the negative impacts affect the productivity of the forests due to the competition established with native species while contributing to a significant increment in the available fuel load, increasing the risk of fire. In Portugal, chemical and mechanical methods are mostly used in th ...
DOI:
10.3390/fire5010007

16. Intraspecific trait changes have large impacts on community functional composition but do not affect ecosystem function

Author:
Noémie A. Pichon; Seraina L. Cappelli; Eric Allan
Source:
journal of ecology 2022 v.110 no.3 pp. 644-658
ISSN:
0022-0477
Subject:
aboveground biomass; belowground biomass; biomass production,   etc   ; ecological function; ecosystems; equations; fungi; global change; grasslands; intraspecific variation; leaf dry matter content; nitrogen; pathogens; species richness; specific leaf area;     Show all 15 Subjects
Abstract:
... Plant functional traits can provide a mechanistic understanding of community responses to global change and of community effects on ecosystem functions. Nitrogen enrichment typically shifts trait composition by promoting the dominance of acquisitive plants (high specific leaf area [SLA] and low leaf dry matter content [LDMC]), translating into high biomass production. Changes in mean trait values ...
DOI:
10.1111/1365-2745.13827

17. Biosorption for the recovery and analysis of rare earth elements and platinum group metals from real samples. A review

Author:
Lavinia Tofan; Carmen-Nicoleta Bojoaga; Carmen Paduraru
Source:
Environmental chemistry letters 2022 v.20 no.2 pp. 1225-1248
ISSN:
1610-3653
Subject:
biomass,   etc   ; biosorbents; biosorption; platinum; wastes;     Show all 5 Subjects
Abstract:
... The increasing demand of rare earth elements and platinum group metals requires alternative approaches for their recycling from waste. Decades of fundamental laboratory research on biosorption area have emphasised that bio-based materials (biosorbents) display high and versatile potential of metal preconcentration. However, the transposition of this potential into successful practical strategies f ...
DOI:
10.1007/s10311-021-01330-8

18. Conversion of higher fatty acids or higher fatty acid esters to long-chain alkanes by acid added metal catalyst under mild hydrothermal conditions

Author:
Xin Cai; Zhaoxia Zhang; Yueyuan Ye; Duo Wang; Shuirong Li; Dechao Wang; Zhifeng Zheng
Source:
Biomass and bioenergy 2022 v.156 pp. 106328
ISSN:
0961-9534
Subject:
biomass,   etc   ; bioenergy; catalysts; stearic acid;     Show all 4 Subjects
Abstract:
... Utilizing waste lipids to produce renewable diesel has received widespread attention, but the traditional preparation process is limited by rigorous reaction conditions or complex catalytic systems. This study reports a simple acid addition method to improve the conversion of higher fatty acids and/or higher fatty acid esters into long-chain alkanes under mild hydrothermal conditions over commerci ...
DOI:
10.1016/j.biombioe.2021.106328

19. TUN-AI: Tuna biomass estimation with Machine Learning models trained on oceanography and echosounder FAD data

Author:
Daniel Precioso; Manuel Navarro-García; Kathryn Gavira-O'Neill; Alberto Torres-Barrán; David Gordo; Víctor Gallego; David Gómez-Ullate
Source:
Fisheries research 2022 v.250 pp. 106263
ISSN:
0165-7836
Subject:
biomass,   etc   ; models; oceanography; research; tuna;     Show all 5 Subjects
Abstract:
... The use of dFADs by tuna purse-seine fisheries is widespread across oceans, and the echo-sounder buoys attached to these dFADs provide fishermen with estimates of tuna biomass aggregated to them. This information has potential for gaining insight into tuna behaviour and abundance, but has traditionally been difficult to process and use. The current study combines FAD logbook data, oceanographic da ...
DOI:
10.1016/j.fishres.2022.106263

20. Use of Dynamic Time Warping for Description of Combustion Process in a Biomass Boiler

Author:
Martin Kucín; Martin Fajman; Adam Polcar; Jiří Čupera
Source:
Acta technologica agriculturae 2022 v.25 no.1 pp. 33-39
ISSN:
1338-5267
Subject:
biomass,   etc   ; bioenergy; combustion; compliance; energy;     Show all 5 Subjects
Abstract:
... The efficient biomass energy use is a key prerequisite for the implementation of renewable energy development strategies on a regional level. For the highly efficient energy use in the combustion process, it is necessary to properly regulate the process based on its precise description. The paper aim is to evaluate whether dynamic time warping (DTW) methods can be used for this description, as wel ...
DOI:
10.2478/ata-2022-0006