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Article: A review of the potentiality of biochar technology to abate emissions of particulate matter originating from agriculture

Luyima, D. / Egyir, M. / Lee, J.-H. / Yoo, J.-H. / Oh, T.-K.

International journal of environmental science and technology. 2022 Apr., v. 19, no. 4

2022

Abstract: Agricultural operations and processes generate copious quantities of particulate matter (PM) both directly and indirectly through emissions of PM precursor gases with dire consequences for human health, environment and climate. PM emissions from ... ...

Abstract	Agricultural operations and processes generate copious quantities of particulate matter (PM) both directly and indirectly through emissions of PM precursor gases with dire consequences for human health, environment and climate. PM emissions from agricultural activities are projected to continually rise in the light of soaring food demand driven by a ballooning global population, and thus, plausible measures are needed to combat them. Recently, interest in using biochar to attenuate PM emissions of agricultural origin, especially the secondary PM precursors, has gained traction and this review study is purposed to examine the capacity of the technology to curb the agricultural-related PM emissions basing on observations made in the previously concluded studies. The study gives a brief overview of the effects of PM and delineates its weighty agricultural sources plus detailing whether and how the pyrolysis technology and biochar as its product can help to alleviate the emissions. Additional discussions address the looming dilemma of biochar applications becoming a PM emission problem and the techniques that should be applied to ensure its sustainable usage. It is overwhelmingly clear from the studies reviewed that pyrolysis and resultant biochar have an enormous potential to attenuate PM from agriculture if adequately utilised.
Keywords	biochar ; climate ; environmental science ; human health ; particulate emissions ; particulates ; pyrolysis ; technology
Language	English
Dates of publication	2022-04
Size	p. 3411-3428.
Publishing place	Springer Berlin Heidelberg
Document type	Article
Note	Review
ZDB-ID	2230399-6
ISSN	1735-2630 ; 1735-1472
ISSN (online)	1735-2630
ISSN	1735-1472
DOI	10.1007/s13762-021-03267-5
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Association of high-dose postoperative opioids with recurrence risk in esophageal squamous cell carcinoma: reinterpreting ERAS protocols for long-term oncologic surgery outcomes.

Oh, T K / Jeon, J H / Lee, J M / Kim, M S / Kim, J H / Lim, H / Kim, S-E / Eom, W

Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus

2017 Volume 30, Issue 10, Page(s) 1–8

Abstract: Esophageal squamous cell carcinoma (ESCC) is associated with a poor prognosis and high postoperative recurrence rate. Although postoperative opioid use has been associated with cancer recurrence, its relevance in ESCC has not been determined. Therefore, ... ...

Abstract	Esophageal squamous cell carcinoma (ESCC) is associated with a poor prognosis and high postoperative recurrence rate. Although postoperative opioid use has been associated with cancer recurrence, its relevance in ESCC has not been determined. Therefore, this study investigated whether high-dose postoperative opioid use was associated with recurrence risk in patients with ESCC. For this retrospective analysis, the medical records of patients who were diagnosed with ESCC and who underwent surgery between January 2006 and December 2010 in the National Cancer Center, Korea were evaluated. Total opioid administration over a 10-day period, from during surgery to postoperative day 9, was calculated. A cutoff value was determined using receiver operating characteristic curve analysis, and patients were classified into the high-use and low-use groups. The primary and secondary outcomes of the study were freedom from recurrence and overall survival, respectively. After propensity score matching, the effect of opioid use on freedom from recurrence and overall survival was evaluated using the Kaplan-Meier method. The final analysis set included 258 patients. The cumulative opioid dose cutoff point was 1783.5 mg of oral morphine. High-dose postoperative opioid use was a significant factor affecting recurrence (Hazard ratio [HR], 2.162; 95% confidence interval [CI], 1.583-2.954; P < 0.0001). In contrast, postoperative opioid use was not associated with death (HR, 1.274; 95% CI, 0.922-1.761; P = 0.1422). In patients with ESCC, compared with low-dose opioid use, high-dose intraoperative and postoperative opioid use was significantly associated with an increased risk of recurrence. However, opioid dosage did not affect overall survival.
Language	English
Publishing date	2017-10-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	639470-x
ISSN	1442-2050 ; 1120-8694
ISSN (online)	1442-2050
ISSN	1120-8694
DOI	10.1093/dote/dox074
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Article ; Online: Industrial production of fructooligosaccharides by immobilized cells of Aureobasidium pullulans in a packed bed reactor.

Jung, K H / Bang, S H / Oh, T K / Park, H J

Biotechnology letters

2011 Volume 33, Issue 8, Page(s) 1621–1624

Abstract: Continuous production of fructooligosaccharides (FOS) by Aureobasidium pullulans immobilized on calcium alginate beads with a packed bed was investigated at a plant scale reactor. Optimum conditions were with 770 g sucrose/l, being fed at 200 l/h at 50°C ...

Abstract	Continuous production of fructooligosaccharides (FOS) by Aureobasidium pullulans immobilized on calcium alginate beads with a packed bed was investigated at a plant scale reactor. Optimum conditions were with 770 g sucrose/l, being fed at 200 l/h at 50°C which gave a productivity of 180 g FOS/l h. Initial activity was maintained for more than 100 days. The reactor was successfully scaled up to a production scale of 1.2 m(3).
MeSH term(s)	Ascomycota/enzymology ; Ascomycota/metabolism ; Bioreactors/microbiology ; Cells, Immobilized/enzymology ; Cells, Immobilized/metabolism ; Enzyme Stability ; Glucose/analysis ; Glucose/metabolism ; Hexosyltransferases/metabolism ; Industrial Microbiology/instrumentation ; Industrial Microbiology/methods ; Oligosaccharides/analysis ; Oligosaccharides/metabolism ; Sucrose/metabolism ; Trisaccharides/metabolism
Chemical Substances	Oligosaccharides ; Trisaccharides ; 1-kestose (02LN7O412C) ; fungitetraose (13133-07-8) ; Sucrose (57-50-1) ; Hexosyltransferases (EC 2.4.1.-) ; inulosucrase (EC 2.4.1.9) ; Glucose (IY9XDZ35W2)
Language	English
Publishing date	2011-08
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	423853-9
ISSN	1573-6776 ; 0141-5492
ISSN (online)	1573-6776
ISSN	0141-5492
DOI	10.1007/s10529-011-0606-8
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Article: Effects of the application of water treatment sludge on growth of lettuce (Lactuca sativa L.) and changes in soil properties

Oh. T.K., Kyushu Univ., Fukuoka (Japan) / Nakaji, K. / Chikushi, J. / Park, S.G.

Journal of the Faculty of Agriculture, Kyushu University (Japan)

Feb 2010 Volume v. 55, Issue (1), Page(s) p. 15–20

Abstract: The effectiveness of the application of water treatment sludge (WTS) to soils for cultivating a vegetable was examined. Initially, properties of original WTS, decomposed granite (DG) soil and volcanic ash (VA) soils were investigated, including physical ... ...

Abstract	The effectiveness of the application of water treatment sludge (WTS) to soils for cultivating a vegetable was examined. Initially, properties of original WTS, decomposed granite (DG) soil and volcanic ash (VA) soils were investigated, including physical properties of water content, porosity, dry density, saturated hydraulic conductivity, and texture and chemical properties of pH, EC, organic matter content, CEC, phosphate adsorption coefficient, and C, N, and H contents. Lettuce (Lactuca satuva L.) was grown in a phytotron room at a temperature of 20degC using pots filled with DG soil and VA soil mixed with WTS at rates of 0 (N-P-K standard fertilizer application), 0, 4.5, and 9.0 Mg/ha. The yields of lettuce grown for the treatments of 4.5, and 9.0 Mg/ha sludge addition in VA soil were lower by 38% and 7% compared with the treatment of 0 Mg/ha sludge addition, respectively. However, the yield in DG soil was significantly higher by 72% (4.5 Mg/ha WTS addition) and 71 % (9.0 Mg/ha WTS addition) compared with 0 Mg/ha sludge addition, respectively. These results suggest that land application of WTS may act positively to organic matter-deficient soils like DG soil, but negatively to fertile soil like VA soil.
Keywords	FERTILIZER APPLICATION ; ACTIVATED SLUDGE ; CULTIVATION ; LACTUCA SATIVA ; GRANITE SOILS ; VOLCANIC SOILS ; WATERING ; PRODUCTIVITY ; GREENHOUSES ; FERTILISATION ; BOUE ACTIVEE ; PRATIQUE CULTURALE ; LACTUCA SATIVA ; SOL DE GRANIT ; SOL VOLCANIQUE ; ARROSAGE ; PRODUCTIVITE ; SERRE ; APLICACION DE ABONOS ; LODOS ACTIVADOS ; CULTIVO ; LACTUCA SATIVA ; SUELO DE GRANITO ; SUELO VOLCANICO ; REGADURA ; PRODUCTIVIDAD ; INVERNADEROS ; http://www.fao.org/aos/agrovoc#c_10795 ; http://www.fao.org/aos/agrovoc#c_8611 ; http://www.fao.org/aos/agrovoc#c_2018 ; http://www.fao.org/aos/agrovoc#c_4149 ; http://www.fao.org/aos/agrovoc#c_3356 ; http://www.fao.org/aos/agrovoc#c_8287 ; http://www.fao.org/aos/agrovoc#c_8332 ; http://www.fao.org/aos/agrovoc#c_6210 ; http://www.fao.org/aos/agrovoc#c_3379
Language	English
Document type	Article
ISSN	0023-6152
Database	AGRIS - International Information System for the Agricultural Sciences and Technology

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Article: Industrial production of fructooligosaccharides by immobilized cells of Aureobasidium pullulans in a packed bed reactor

Jung, K. H / Bang, S. H / Oh, T. K / Park, H. J

Biotechnology letters. 2011 Aug., v. 33, no. 8

2011

Abstract	Continuous production of fructooligosaccharides (FOS) by Aureobasidium pullulans immobilized on calcium alginate beads with a packed bed was investigated at a plant scale reactor. Optimum conditions were with 770 g sucrose/l, being fed at 200 l/h at 50°C which gave a productivity of 180 g FOS/l h. Initial activity was maintained for more than 100 days. The reactor was successfully scaled up to a production scale of 1.2 m3.
Keywords	Aureobasidium pullulans ; calcium alginate ; fructooligosaccharides ; immobilized cells ; sucrose
Language	English
Dates of publication	2011-08
Size	p. 1621-1624.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	423853-9
ISSN	1573-6776 ; 0141-5492
ISSN (online)	1573-6776
ISSN	0141-5492
DOI	10.1007/s10529-011-0606-8
Database	NAL-Catalogue (AGRICOLA)

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Article: Transverse grating-assisted narrow-bandwidth acousto-optic tunable filter.

Paek, E G / Choe, J Y / Oh, T K

Optics letters

2007 Volume 23, Issue 16, Page(s) 1322–1324

Abstract: An experimental acousto-optic tunable filter that has a narrow spectral bandwidth (0.2 nm at 1550 nm) and a fast (10-micros) tuning capability with a continuous tuning range of approximately 50 nm is described. The tunable filter consists of an acousto- ... ...

Abstract	An experimental acousto-optic tunable filter that has a narrow spectral bandwidth (0.2 nm at 1550 nm) and a fast (10-micros) tuning capability with a continuous tuning range of approximately 50 nm is described. The tunable filter consists of an acousto-optic beam deflector with a diffraction grating whose grating vector is transverse to the direction of light propagation.
Language	English
Publishing date	2007-03-16
Publishing country	United States
Document type	Journal Article
ISSN	0146-9592
ISSN	0146-9592
DOI	10.1364/ol.23.001322
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Article: Acoustically steered and rotated true-time-delay generator based on wavelength-division multiplexing.

Paek, E G / Im, Y S / Choe, J Y / Oh, T K

Applied optics

2007 Volume 39, Issue 8, Page(s) 1298–1308

Abstract: The acoustically steered and rotated (ASTRO) true-time-delay (TTD) generator, capable of two-dimensional (2D) multiple beam generation without causing extraneous beams, is described. It is based on wavelength-division multiplexing to encode and decode ... ...

Abstract	The acoustically steered and rotated (ASTRO) true-time-delay (TTD) generator, capable of two-dimensional (2D) multiple beam generation without causing extraneous beams, is described. It is based on wavelength-division multiplexing to encode and decode various linear chirp time delays with wavelengths. An array of equally spaced light stripes with linear chirp time delays among them is formed and is subsequently rotated to a desired angle by use of our nonmechanical acousto-optic dove prism, believed to be novel. Our architecture reduces hardware complexity significantly by avoiding redundancy in conventional TTD generators. Experimental results to prove the concept of 2D multiple beam generation are shown. Also, an extension of the system for bidirectional communications is proposed. Various technical issues for practical applications are discussed.
Language	English
Publishing date	2007-03-16
Publishing country	United States
Document type	Journal Article
ISSN	1559-128X
ISSN	1559-128X
DOI	10.1364/ao.39.001298
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Article: The adsorption of hydrogen fluoride and fluoride ion on a water treatment sludge

Oh, T.K.(Kyushu Univ., Fukuoka (Japan). Biotron Inst.) / Chikushi, J. / Saeki, K.

Journal of the Faculty of Agriculture - Kyushu University (Japan)

Feb 2009 Volume v. 54, Issue (1), Page(s) p. 205–208

Abstract: The hydrogen fluoride (HF) and fluoride ion (Fsup(-)) adsorption potentials of a water treatment sludge were investigated in a batch mode as a function of pH, contact time, initial fluoride concentrations, and other co-existing anions. The maximum ... ...

Abstract	The hydrogen fluoride (HF) and fluoride ion (Fsup(-)) adsorption potentials of a water treatment sludge were investigated in a batch mode as a function of pH, contact time, initial fluoride concentrations, and other co-existing anions. The maximum removal of total fluoride was apparently observed at pH 5.1, whereas HF or Fsup(-) adsorptions showed nearly 100% in pH range from 2.2 to 4.3. The HF or Fsup(-) adsorption by the water treatment sludge has occurred rapidly during the initial 5-60 min and thereafter slowly increased until 48 h. The other anions such as SO4sup(2-), NO3sup(-) and Clsup(-) have not adversely affected on extent of HF or Fsup(-) adsorption by the water treatment sludge.
Keywords	WATER QUALITY ; FLUORIDES ; ADSORPTION ; WATER PURIFICATION ; SOLID WASTES ; QUALITE DE L'EAU ; FLUORURE ; ADSORPTION ; PURIFICATION DE L'EAU ; DECHET SOLIDE ; CALIDAD DEL AGUA ; FLUORUROS ; ADSORCION ; PURIFICACION DEL AGUA ; DESECHOS SOLIDOS
Language	English
Document type	Article
ISSN	0023-6152
Database	AGRIS - International Information System for the Agricultural Sciences and Technology

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Article: Comparison between ethanolic and aqueous extracts from Chinese juniper berries for hypoglycaemic and hypolipidemic effects in alloxan-induced diabetic rats

Ju, J.B / Kim, J.S / Choi, C.W / Lee, H.K / Oh, T.K / Kim, S.C

Journal of ethnopharmacology. 2008 Jan. 4, v. 115, issue 1

2008

Abstract: Aim of the study: Hypoglycaemic and hypolipidemic properties of the ethanolic and aqueous extracts, respectively, from Chinese juniper (Juniperus chinensis L.) berries were investigated in alloxan-induced diabetic rats. Materials and methods: After oral ... ...

Abstract	Aim of the study: Hypoglycaemic and hypolipidemic properties of the ethanolic and aqueous extracts, respectively, from Chinese juniper (Juniperus chinensis L.) berries were investigated in alloxan-induced diabetic rats. Materials and methods: After oral administration of each extract singly or repeatedly to alloxan-induced diabetic rats, the blood glucose, glutamate-pyruvate transferase (GPT), glutamate-oxaloacetate transaminase (GOT), total cholesterol (TC) and triglyceride (TG) levels were assayed. Results: The blood glucose levels after a single oral administration of the ethanolic extract significantly reduced in a time-dependent manner, which is much faster and more than that of glibenclamide. The blood glucose levels of alloxan-induced diabetic rats treated with the ethanolic extract were reduced to 94, 81%, 66%, 45% and 40% at 1, 3, 5, 7 and 9h, respectively (p <0.05), while the aqueous extract had no effect at all. Repeated oral administration of the ethanolic extract also effectively reduced the GPT value to 58% of the diabetic rats, but slightly reduced the GOT value to 87% of the diabetic rats (p <0.05). On the other hand, the repeated oral administration of aqueous extract effectively reduced the GOT value to 43% of the diabetic rats, without affecting the GPT level. Effects of both extracts on the TC and TG levels were different. There was no significant difference in the TC and TG levels between diabetic control and diabetic groups when repeatedly administered orally with ethanolic extract. On the other hand, the aqueous extract brought down the TC value to 57% and the TG value to 37% of the diabetic control rats (p <0.05). Conclusions: The results suggested that the ethanolic extract of Chinese juniper berries possesses a potential hypoglycaemic effect while the aqueous extract has a potential hypolipidemic effect.
Keywords	Juniperus chinensis ; fruits (plant anatomy) ; small fruits ; plant extracts ; ethanol ; medicinal plants ; animal disease models ; rats ; alloxan ; aqueous solutions ; diabetes ; human diseases ; lipemic effect ; glycemic effect ; blood glucose ; alanine transaminase ; transaminases ; cholesterol ; oral administration ; triacylglycerols
Language	English
Dates of publication	2008-0104
Size	p. 110-115.
Document type	Article
ZDB-ID	134511-4
ISSN	1872-7573 ; 0378-8741
ISSN (online)	1872-7573
ISSN	0378-8741
DOI	10.1016/j.jep.2007.09.012
Database	NAL-Catalogue (AGRICOLA)

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Article: Nonmechanical image rotation with an acousto-optic dove prism.

Paek, E G / Choe, J Y / Oh, T K / Hong, J H / Chang, T Y

Optics letters

2007 Volume 22, Issue 15, Page(s) 1195–1197

Abstract: We report what we believe to be the first method for nonmechanical and programmable image rotation. The method uses a pair of crossed acousto-optic beam deflectors and a polygon mirror to emulate the mechanical dove prism. It is capable of fast (of the ... ...

Abstract	We report what we believe to be the first method for nonmechanical and programmable image rotation. The method uses a pair of crossed acousto-optic beam deflectors and a polygon mirror to emulate the mechanical dove prism. It is capable of fast (of the order of microseconds) image rotation to an arbitrary angle in a programmable manner. An experimental result that proves the concept is provided.
Language	English
Publishing date	2007-03-16
Publishing country	United States
Document type	Journal Article
ISSN	0146-9592
ISSN	0146-9592
DOI	10.1364/ol.22.001195
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