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Maximizing biomass utilization: An integrated strategy for coproducing multiple chemicals

journal of Energy Chemistry 2025年第1期100卷 180-191页

作者： Byeongchan Ahn Sua jo jonggeol Na j.jay Liu Young-ju kim Wangyun Won Department of Chemical and Biological Engineering Korea University Department of Chemical Engineering (Integrated process) Kyung Hee University Department of Chemical Engineering and Materials Science Ewha Womans University Department of Chemical Engineering Pukyong National University Resources Engineering Plant Research Department Korea Institute of Geoscience and Mineral Resources

Lignocellulosic biomass is one of the viable solutions to alleviate the global warming. However, the limited utilization of biomass majorly focused on cellulose and hemicellulose restricts the economic and environmental feasibilities. To cope with this issue, we proposed an integrated process of co-producing 1,6-hexanediol（1,6-HDO） with tetrahydrofuran and adipic acid from biomass, referred to as Strategy A. To compare the impacts of lignin upgrading and feedstock, Strategy B, which co-produces tetrahydrofuran alone, and Strategy C, which is the traditional route to produce 1,6-HDO from fossil fuels, were used. Heat networks are also designed to reduce operating costs and indirect carbon emissions due to energy consumption, saving 87% and 83% of the heat and cooling requirements, respectively, in Strategy A. The market competitiveness of Strategy A was evaluated by determining the minimum selling price through techno-economic analysis, and sustainability was thoroughly investigated by quantifying the environmental impacts through both midpoint and endpoint life-cycle assessments（LCAs）.Strategy A was found to be the most favorable both economically（USRDSCHARDOLLAR3,402/ton） and environmentally（-26.9 kg CO2eq.）. This indicates that lignin valorization is not only economically but also environmentally preferred. Finally, changes in economic and environmental feasibilities depending on economic, process, and environmental parameters were investigated using sensitivity and uncertainty analyses. The results of these analyses provide valuable insight into bio-based chemical production.

关键词： Biorefinery Carbon mitigation Climate change Global warming Lignin utilization Bioeconomy

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Al-incorporation into Li7La3Zr2O12 solid electrolyte keeping stabilized cubic phase for all-solid-state Li batteries

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journal of Energy Chemistry 2018年第5期27卷 1501-1508页

作者： Changbin im Dongwon Park Hosung kim jaeyoung Lee Chemical Energy Storage and Transformation Center (CHESS) Research Institute for Solar and Sustainable Energies (RISE) Gwangju Institute of Science and Technology (GIST)Gwangju 500-712 South Korea Ertl Center for Electrochemistry and Catalysis GIST Research Institute GIST Gwangju 500-712 South Korea Electrochemical Reaction and Technology Laboratory School of Earth Scieences and Environmental Engineering GIST Cwangju 500-712 South Korea Gwangju Research Center Korea Institute of Industrial Technology (KITECH) Gwangju 61012 South Korea

We observe the influence of AI occupancies in Li sites on the formation process of the garnet solid elec- trolyte of Li_7La_3Zr_2O_12 （LLZO）. A direct incorporation of AI is first promoted in a Li-insufficient garnet solid electrolyte during the calcination process of 850 ℃ and then the cubic phase of LLZO is obtained after successive annealing step of 1000 ℃. Comparing to pristine LLZO, AI incorporated LLZO shows less formation of Li_2CO_3, keeping crystallographic and physicochemical properties. This AI incorporation im- proves both the ionic conductivity and interfacial resistance to poisoning procedure.

关键词： Li_7La_3Zr_2O_12 AI incorporation Garnet solid electrolyte Cubic phase

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Optimal management for alcoholic liver disease: Conventional medications, natural therapy or combination?

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World journal of Gastroenterology 2016年第1期22卷 8-23页

作者： Moon-Sun kim Madeleine ong Xianqin Qu School of Medical and Molecular Biosciences University of Technology Sydney Faculty of Pharmacy University of Sydney

Alcohol consumption is the principal factor in thepathogenesis of chronic liver *** liver disease(ALD)is defined by histological lesions on the liver that can range from simple hepatic steatosis to more advanced stages such as alcoholic steatohepatitis,cirrhosis,hepatocellular carcinoma and liver *** one of the oldest forms of liver injury known to humans,ALD is still a leading cause of liver-related morbidity and mortality and the burden is exerting on medical systems with hospitalization and management costs rising constantly *** the biological mechanisms,including increasing of acetaldehyde,oxidative stress with induction of cytochrome p4502E1,inflammatory cytokine release,abnormal lipid metabolism and induction of hepatocyte apoptosis,by which chronic alcohol consumption triggers serious complex progression of ALD is well established,there is no universally accepted therapy to prevent or *** this article,we have briefly reviewed the pathogenesis of ALD and the molecular targets for development of novel *** review is focused on current therapeutic strategies for ALD,including lifestyle modification with nutrition supplements,available pharmacological drugs and new agents that are under development,liver transplantation,application of complementary medicines,and their *** relevant molecular mechanisms of each conventional medication and natural agent have been reviewed according to current available knowledge in the *** also summarized efficacy vs safety on conventional and herbal medicines which are specifically used for the prevention and treatment of *** a system review,this article highlighted that the combination of pharmaceutical drugs with naturally occurring agents may offer an optimal management for ALD and its *** is worthwhile to conduct large-scale,multiple centre clinical trials to further prove the safety and benefits for the integrative therapy on ALD.

关键词： Alcoholic liver disease Alcohol hepatitis Conventional medicines Natural medicines Hepaticlipid metabolism Hepatic inflammation Combinationtherapy

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Prominent cycling reversibility and kinetics enabled by CaTiO3 protective layer on Zn metal for aqueous Zn-ion batteries

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journal of Energy Chemistry 2025年第1期100卷 245-258页

作者： Gaeun Lee Yong Nam Ahn Seongjoon So Chanwoo Park jong-Seong Bae Taehyun Park Il Tae kim jaehyun Hur School of Chemical Biological and Battery Engineering Gachon University Seongnam Busan Center Korea Basic Science Institute

Aqueous Zn-ion batteries （AZIBs） have received considerable attention owing to their various advantages such as safety,low cost,simple battery assembly conditions,and high ionic ***,they still suffer from serious problems,including uncontrollable dendrite growth,corrosion,hydrogen evolution reaction （HER） from water decomposition,electrode passivation,and unexpected *** creation of a uniform artificial nanocrystal layer on the Zn anode surface is a promising strategy for resolving these ***,we propose the use of a perovskite CaTiO3（CTO） protective layer on Zn（CTO@Zn） as a promising approach for improving the performance of *** CTO artificial layer provides an efficient pathway for Zn ion diffusion towards the Zn metal because of the high dielectric constant （εr=180） and ferroelectric characteristics that enable the alignment of dipole moments and redistribute the Zn2+ions in the CTO *** avoiding the direct contact of the Zn anode with the electrolyte solution,the uneven dendrite growth,corrosion,parasitic side reactions,and HER are mitigated,while CTO retains its mechanical and chemical robustness during ***,CTO@Zn demonstrates an improved lifespan in a symmetric cell configuration compared with bare ***@Zn shows steady overpotential （～68 m V） for 1500 h at 1 mA cm-2/0.5 mA h cm-2,excelling bare ***,when paired with the V2O5-C cathode,the CTO@Zn//V2O5-C full battery delivers 148.4 mA h g-1（based on the mass of the cathode） after 300 *** study provides new insights into Zn metal anodes and the development of high-performance AZIBs.

关键词： Artificial layer Dielectric constant Zn metal anode Zinc aqueous battery

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Pharmacokinetics and tissue distribution of a novel PDE5 inhibitor,SK-3530,in rats

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Acta Pharmacologica Sinica 2007年第8期28卷 1247-1253页

作者： Hye-hyun YOO Nam-sun kim Guang-jin im Dong-hyun kim Bioanalysis and Biotransformation Research Center Korea Institute of Science & Technology Seoul 136-791Korea Life Science RD Center SK ChemicalsGyeonggi-do 440-300Korea

Aim:To investigate the pharmacokinetic profile and tissue distribution of a novelphosphodiesterase type 5 inhibitor,5-ethyl-2-{5-[4-（2-hydroxy-ethyl）-piperazine-1-sulfonyl]-2-propoxy-phenyl}-7-propyl-3,5-dihydro-pyrrolo（3,2-d）pyrimidin-4-one（SK-3530）,in rats after administration of the14C-labeled ***:The pharmacokinetic parameters of SK-3530 were measured based on the totalradioactivity and parent SK-3530 concentration in rat plasma after intravenousand oral *** tissue distribution of total radioactivity after a singleoral administration of[14C]SK-3530 at a dose of 40 mg/kg was *** protein binding rates of SK-3530 were assessed by in vitro and ex ***:The total radioactivity profiles showed linear *** maximum plasma concentration and area under the curve of the parent SK3530were 10%-20% compared to those of the total *** the oral admin-istration of[14C]SK-3530,the radioactivity was widely distributed in all tissues,and the tissue/plasma ratio of the radioactivity 1 h after administration was calcu-lated as 0.5-2.6 with the exception of excretory organs.A relatively high penetra-tion was shown in the adrenal glands,liver,and *** vitro and ex vivo plasmaprotein binding assay by ultrafiltration showed a considerably high binding rateof more than 97%.Conclusion:SK-3530 was relatively well absorbed in the gas-trointestinal tract and showed linear pharmacokinetics over the investigated ***-3530 had low oral bioavailability due to a high,first-pass metabolism.

关键词： SK-3530 PDE5 inhibitor pharmacokinetics tissue distribution rats

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超前钻孔直径对高应力巷道卸压及掏槽爆破效果影响研究

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华北理工大学学报（自然科学版） 2025年第1期47卷 53-61页

作者：黄斌胡学龙安徽理工大学安徽省煤矿安全采掘装备制造业创新中心安徽淮南232001 中国矿业大学煤炭精细勘探与智能开发全国重点实验室江苏徐州221116 安徽理工大学矿业工程学院安徽淮南232001

随着煤炭开采逐步向深部推进,巷道开挖过程中应力集中问题日益突显,亟需有效解决。本文采用Ansys/Ls-Dyna数值模拟软件,针对高应力环境下不同超前钻孔直径对巷道卸压效果及掏槽爆破效果的影响进行了系统研究。利用imagej图像处理软件对... 详细信息

随着煤炭开采逐步向深部推进,巷道开挖过程中应力集中问题日益突显,亟需有效解决。本文采用Ansys/Ls-Dyna数值模拟软件,针对高应力环境下不同超前钻孔直径对巷道卸压效果及掏槽爆破效果的影响进行了系统研究。利用imagej图像处理软件对巷道掏槽爆破损伤云图进行了详细分析。结果表明,随着超前钻孔直径的增加,钻孔孔底至岩石内部区域的有效应力逐渐降低,有效实现了卸压作用;随着超前钻孔直径的增大,掏槽爆破岩石块度逐渐减少,小块度占比显著增加,且在大直径钻孔爆破中岩石块度的分布更为均匀。研究成果对提升高应力巷道掏槽爆破效果具有重要指导意义。

关键词：高应力超前钻孔掏槽爆破数值模拟

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Calcium Phosphate Coating over Silk Fibroin Film by Biomimetic Methods

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journal of Wuhan University of Technology(Materials Science) 2005年第B12期20卷 92-94页

作者：赵勇陈治清 ong j West China College of Stomatology Sichuan University Chengdu 610041 China Department of Biomedical Engineering and Orthopedic Surgery University of Tennessee Health Science Center Memphis 38163USA

To investigate the biomincralization behavior of silk fibroin and to valuate the biodegradation and biocompatibility of the hybrid biomaterial, the calcium phosphate deposits were identified with SEM, EDX, XRD and FTIR. The results reveal that supersaturated calcification solution is an effective method for the mineralization of fibroin film. Enzymatic degradation experiment demonstrates the biodegradability of the composites. Osteoblasts incubation shows an excellent cytocompatibility on the mincralized fibroin films.

关键词： biomineralization degradation apatite fibroin/HAP composite

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improved formaldehyde gas sensing properties of well-controlled Au nanoparticle-decorated In2O3 nanofibers integrated on low power MEMS platform

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journal of Materials Science & Technology 2020年第3期38卷 56-63页

作者： Dongha im Donghyun kim Dasol j.ong Woon Ik Park Myoungpyo Chun joon-Shik Park Hyunjung kim Hyunsung jung Nano Materials&Nano Technology Center Korea Institute of Ceramic Engineering&TechnologyJinju 52851Republic of Korea Department of Mineral Resources and Energy Engineering Chonbuk National UniversityJeonju 54896Republic of Korea Smart Sensor Research Center Korea Electronic Technology InstituteSeongnam 13509Republic of Korea

Approaches for the fabrication of a low power-operable formaldehyde(HCHO)gas sensor with high sensitivity and selectivity were performed by the utilization of an effective micro-structured platform with a micro-heater to reach high temperature with low heating power as well as by the integration of indium oxide(In2O3)nanofibers decorated with well-dispersed Au nanoparticles as a sensing *** In2O3 nanofibers with the large specific surface area were prepared by the electrospinning following by calcination *** nanoparticles with the well-controlled size as a catalyst were synthesized on the surface of In2O3 *** Au-decorated In2O3 nanofibers were reliably integrated as sensing materials on the bridge-type micro-platform including micro-heaters and *** micro-platform designed to maintain high temperature with low power consumption was fabricated by a microelectromechanical system(MEMS)*** micro-platform gas sensor consisting with Au-In2O3 nanofibers were fabricated effectively to detect HCHO gases with high sensitivity and *** HCHO gas sensing behaviors were schematically studied as a function of the gas concentration,the size of the adsorbed Au nanoparticles,the applied power to raise the temperature of a sensing part and the kind of target gases.

关键词： Gold nanoparticle In2O3 nanofiber Formaldehyde Gas sensor Low power Micro-platform

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CFD investigation of the feasibility of polymer-based microchannel heat sink as thermal solution

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Chinese journal of Chemical Engineering 2020年第4期28卷 980-994页

作者： Yue Seong ong KuZilati KuShaari Department of Chemical Engineering University Teknologi PETRONASSeri IskandarMalaysia

Microchannel heat sinks(MCHSs)are promising thermal solutions in miniaturized or compact *** aspect has been given huge emphasis in recent ***-based materials are commonly used to fabricate MCHSs due to their high thermal ***,MCHSs are heavy due to the high density of these materials albeit the small footprint of ***-based materials are interesting *** their poor thermal conductivity,lightweight feature attracts the interest of *** transfer is a conjugate process of heat conduction and heat *** heat conductions aspect may be compensated through enhancement of heat convection *** polymer-based materials have been used in microscale heat transfer studies,their focus was not on their *** present study aims to evaluate the feasibility of polymer-based MCHSs as thermal *** effect of thermal conductivity of fabrication materials,including polymer-based PDMS,PTFE,PDMS/MWCNT,and metal-based aluminum,on the thermal performance of MCHSs was investigated and compared at various inlet flow rate,fluid thermal conductivity,and microchannel ratio at different constant heat fluxes using three-dimensional CFD *** showed that the thermal performance of MCHSs was greatly affected by the heat conduction aspect in which poor heat conduction limited the thermal performance improvement due to enhanced heat convection *** suggests polymer-based materials have the potential for heat transfer applications through thermal conductivity *** was confirmed in the further analysis using a recently proposed high thermal conductivity polymer-based graphite/epoxy MCHS and a hybrid-based PDMS/aluminum MCHS.

关键词： Microchannel heat sink Thermal performance Thermal conductivity Microchannel ratio Computational fluid dynamic

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Biomarkers in Barrett's esophagus and esophageal adenocarcinoma:Predictors of progression and prognosis

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World journal of Gastroenterology 2010年第45期16卷 5669-5681页

作者： Chin-Ann j.ong Pierre Lao-Sirieix Rebecca C Fitzgerald MRC Cancer Cell Unit Hutchison-MRC Research CentreCambridgeCB20XZUnited Kingdom

Barrett’s esophagus is a well-known premalignant lesion of the lower esophagus that is characterized by intestinal metaplasia of the squamous epithelium. It is clinically important due to the increased risk (0.5% per annum) of progression to esophageal adenocarcinoma (EA), which has a poor outcome unless diagnosed early. The current clinical management of Barrett’s esophagus is hampered by the lack of accurate predictors of progression. In addition, when patients develop EA, the current staging modalities are limited in stratifying patients into different prognostic groups in order to guide the optimal therapy for an individual patient. Biomarkers have the potential to improve radically the clinical management of patients with Barrett’s esophagus and EA but have not yet entered mainstream clinical practice. This is in contrast to other cancers like breast and prostate for which biomarkers are utilized routinely to inform clinical decisions. This review aims to highlight the most promising predictive and prognostic biomarkers in Barrett’s esophagus and EA and to discuss what is required to move the field forward towards clinical application.

关键词： Barrett’s esophagus Esophageal adenocar cinoma Esophageal dysplasia Prognosis

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