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Pollutant emissions from biomass burning:A review on emission characteristics,environmental impacts,and research perspectives

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Particuology 2024年第2期85卷 296-309页

作者： Ke jiang Ran xing Zhihan Luo Wenxuan Huang Fan Yi Yatai Men Nan Zhao Zhaofeng Chang jinfeng Zhao Bo Pan Guofeng shen College of Urban and Environmental Sciences Peking UniversityBeijing100871China Beijing Key Lab Plant Resources Research and Development Beijing Technology and Business UniversityBeijing100048China College of Ecology and Environment Zhengzhou UniversityZhengzhou450001China Facultyof Environmental Sciences and Engineering Kunming University of Science and TechnologyYunnan Provincial Key Laboratoryof Soil Carbon Sequestration and Pollution ControlKunming650500China Institute of Carbon Neutrality Peking UniversityBeijing100871China

Biomass is one most abundant resource on the earth providing important energies in support of so-cioeconomic development in many *** of biomass fuels comprises to nearly 10%of the total energy from anthropogenic combustion processes:however,as the burning is usually incomplete,this process yields products of incomplete combustion posing consequently significant impacts on air quality,human health,and climate ***,we analyzed spatiotemporal characteristics in intentional and unintentional biomass burning from different sectors,discussed impacts of biomass burning emissions on indoor and outdoor air quality,and consequent influences on human *** global total con-sumption amount of biomass including both natural and anthropogenic sources was approximately 7900 Tg in 2019,with significantly large regional and sectorial discrepancies among ***,anthropogenic biomass burning amounts increased gradually,but notably in some developing countries like China residential consumption of biomass fuels,as one large sector of biomass use,decreased over *** biomass consumption needs to be accurately *** are relatively rich datasets of pollutant emission factors from biomass burning,including laboratory and field tests,but still large variations exit and contribute substantially to the uncertainty in emission *** pri-mary PM2.5,black carbon and organic carbon emissions from biomass burning were about 51,4.6,and 29 Tg,respectively,contributing to nearly 70%,55%,and 90%of the total emission from all sources,and emissions from the residential sector and open fires are major *** carbon emissions from biomass burning attracts growing interests but available studies adopted different methodologies challenging the comparability of those *** burning emissions polluted not only ambient air but more severely indoor air quality,adversely affecting human *** studies that should be emphasiz

关键词： Biomass burning Carbonaceous aerosol Emission Air quality Human health

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A quadrivalent norovirus vaccine based on a chimpanzee adenovirus vector induces potent immunity in mice

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Virologica Sinica 2024年第4期39卷 675-684页

作者： Yihua jiang Lingjin Sun Nan Qiao Xiang Wang Caihong Zhu Man xing Hui Liu Ping Zhou Dongming Zhou Department of Pathogen Biology School of Basic Medical SciencesTianjin Medical UniversityTianjin300070China Shanghai Public Health Clinical Center Fudan UniversityShanghai201508China R&D Centre Chengdu Kanghua Biological Products Co.LtdChengdu610000China Institut Pasteur of Shanghai Chinese Academy of SciencesShanghai200031China

Norovirus(NoV)infection is a major cause of gastroenteritis *** virus poses great challenges in developing vaccines with broad immune protection due to its genetic and antigenic *** date,there are no approved NoV vaccines for clinical ***,we aimed to develop a broad-acting quadrivalent NoV vaccine based on a chimpanzee adenovirus vector,AdC68,carrying the major capsid protein(VP1)of noroviral GI and GII *** to intramuscular(i.m.),intranasal(i.n.),or other prime-boost immunization regimens(i.m.t i.m.,i.m.t i.n.,i.n.t i.m.),AdC68-GI.1-GII.3(E1)-GII.4-GII.17(E3),administered via i.n.t *** higher titers of serum IgG antibodies and higher IgA antibodies in bronchoalveolar lavage fluid(BALF)and saliva against the four homologous VP1s in *** also significantly stimulated the production of blocking antibodies against the four *** response to re-stimulation with virus-like particles(VLP)-GI.1,VLP-GII.3,VLP-GII.4,and VLP-GII.17,the quadrivalent vaccine administered according to the i.n.t *** effectively triggered specific cell-mediated immune responses,primarily characterized by IFN-γ***,the preparation of this novel quadrivalent NoV vaccine requires only a single recombinant adenovirus to provide broad preventive immunity against the major GI/GII epidemic strains,making it a promising vaccine candidate for further development.

关键词： Norovirus(NoV) Quadrivalent vaccine Adenovirus vector

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Enhancing thermoelectric performance of p-type SnTe through manipulating energy band structures and decreasing electronic thermal conductivity

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Rare Metals 2024年第7期43卷 3232-3241页

作者： Xin Qian Hao-Ran Guo Jia-Xin Lyu Bang-Fu Ding xing-Yuan San Xiao Zhang jiang-Long Wang Shu-Fang Wang Hebei Key Lab of Optic-Electronic Information and Materials College of Physics Science and TechnologyHebei UniversityBaoding 071002China College of Electron and Information Engineering Hebei UniversityBaoding 071002China Research Institute for Frontier Science Beihang UniversityBeijing100191China

SnTe has received considerable attention as an environmentally friendly alternative to the representative thermoelectric material of ***,excessive hole carrier concentration in SnTe results in an extremely low Seebeck coefficient and high thermal conductivity,which makes it exhibit relatively inferior thermoelectric *** this work,the thermoelectric performance of p-type SnTe is enhanced through regulating its energy band structures and reducing its electronic thermal conductivity by combining Bi doping with CdSe ***,the carrier concentration of SnTe is successfully suppressed via Bi doping,which significantly decreases the electronic thermal ***,the convergence and flattening of the valence bands by alloying CdSe effectively improves the effective mass of SnTe while restraining its carrier ***,a maximum figure of merit(ZT) of~ 0.87 at 823 K and an average ZT of~ 0.51 at 300-823 K have been achieved in Sn_(0.96)Bi_(0.04)Te-5%*** results indicate that decreasing the electronic thermal conductivity is an effective means of improving the performance of thermoelectric materials with a high carrier concentration.

关键词： Thermoelectric materials SnTe Energy band structure Electronic thermal conductivity ZT value

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Systemically functional characterization of regiospecific flavonoid O-methyltransferases from Glycine max

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Synthetic and Systems Biotechnology 2024年第2期9卷 340-348页

作者： Bingtong Feng Yuguo jiang Xiaodong Li Yan Wang Ziyu Ren Jian Lu xing Yan Zhihua Zhou Pingping Wang Life Science and Technology College Guangxi UniversityNanningGuangxi530004China CAS-Key Laboratory of Synthetic Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai200032China University of Chinese Academy of Sciences Beijing100049China The College of Life Sciences Shanghai Normal UniversityShanghai200234China

Plants produce diverse flavonoids for defense and stress resistance,most of which have health benefits and are widely used as food additives and *** of the free hydroxyl groups of flavonoids,catalyzed by S-adenosyl-l-methionine-dependent O-methyltransferases(OMTs),significantly affects their physicochemical properties and ***(Glycine max)contain a rich pool of O-methylated ***,the OMTs responsible for flavonoid methylation in *** remain largely *** screened the *** genome and obtained 22 putative OMT-encoding genes that share a broad spectrum of amino acid identities(25–96%);among them,19 OMTs were successfully cloned and heterologously expressed in Escherichia *** used the flavonoids containing the free 3,5,7,8,3′,4′hydroxyl group,such as flavones(luteolin and 7,8-dihydroxyflavone),flavonols(kaempferol and quercetin),flavanones(naringenin and eriodictyol),isoflavonoids(daidzein and glycetein),and caffeic acid as substrates,and 15 OMTs were proven to catalyze at least one *** methylation activities of these GmOMTs covered the 3,7,8,3′,4′-hydroxyl of flavonoids and 7,4′-hydroxyl of *** systematic characterization of *** flavonoid OMTs provides insights into the biosynthesis of methylated flavonoids in soybeans and OMT bioparts for the production of methylated flavonoids via synthetic biology.

关键词： Flavonoids O-methyltransferases Glycine max Functional characterization

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Dietary supplementation with succinic acid improves growth performance and flesh quality of adult Nile tilapia(Oreochromis niloticus)fed a high-carbohydrate diet

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Animal Nutrition 2024年第3期18卷 390-407页

作者： Manxia Cao Ningning Xie Jianmin Zhang Ming jiang Feng Huang Lixue Dong xing Lu Hua Wen Juan Tian Key Laboratory of Freshwater Biodiversity Conservation Ministry of AgricultureYangtze River Fisheries Research InstituteChinese Academy of Fishery SciencesWuhan 430223China Key Laboratory for Animal Nutrition and Feed Science of Hubei Province Wuhan Polytechnic UniversityWuhan 430023China

To evaluate the effects of dietary supplementation with succinic acid on growth performance,flesh quality,glucose,and lipid metabolism of Nile tilapia(Oreochromis niloticus)fed a high-carbohydrate diet(HCD),five iso-nitrogenous and iso-lipidic diets were prepared as follows:HCD(control group)consisting of 55%corn starch and HCD supplemented with 0.5%,1.0%,2.0%,and 4.0%succinic acid,*** with an initial body weight of 204.90±1.23 g randomly assigned to 15 tanks with 3 replicates per group and 10 fish per tank fed for 8 *** dietary succinic acid supplementation resulted in significant second-order polynomial relationship in the weight gain rate(WGR),specific growth rate(SGR),feed conversion ratio(FCR),protein efficiency rate(PER),viscerosomatic index,condition factor,and contents of muscular crude lipid and glycogen(P<0.05).The hepatosomatic index,mesenteric fat index,liver glycogen content and crude lipid contents of the whole-body and liver demonstrated significantly linear and second-order polynomial relationship(P<0.05).Quadratic curve model analysis based on WGR,SGR,PER,and FCR demonstrated that optimal supplementation with succinic acid in the HCD of Nile tilapia ranged from 1.83%to 2.43%.Fish fed with 1.0%succinic acid had higher muscular hardness,increased the contents of alkali-soluble hydroxyproline in collagen,docosahexaenoic acid(DHA)and n-3 polyunsaturated fatty acid(n-3PUFA)in muscle,and lower total fatty acid content in muscle(P<0.05)compared with the control *** to the control group,dietary supplementation with 1.0%succinic acid significantly increased the contents of total bounding amino acid(arginine,histidine,isoleucine,lysine,methionine,alanine,proline),total flavor amino acid(free aspartic acid),the catalase(CAT)activity and total antioxidant capacity,and the mRNA relative expression levels of CAT,superoxide dismutase(SOD),and nuclearfactor erythroidderived 2-like 2(Nrf2)in muscle(P<0.05).Furthermore,succini

关键词： Oreochromis niloticus High-carbohydrate diet Succinic acid Antioxidant capacity Muscular nutritional value Muscle growth

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Stabilizing high-efficiency iridium single atoms via lattice confinement for acidic oxygen evolution

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Nano Research 2024年第4期17卷 2492-2498页

作者： Yibo Wang Jiadong jiang Zhaoping Shi Hongxiang Wu Jiahao Yang Pengbo Wang Shuai Hou Meiling Xiao Junjie Ge Changpeng Liu Wei xing Laboratory of Advanced Power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026.China State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Jilin Province Key Laboratory of Low Carbon Chemical Power Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Key Laboratory of Physics and Technology for Advanced Batteries Ministry of EducationCollege of PhysicsJilin UniversityChangchun 130012China

Stable and efficient single atom catalysts(SACs)are highly desirable yet challenging in catalyzing acidic oxygen evolution reaction(OER).Herein,we report a novel iridium single atom catalyst structure,with atomic Ir doped in tetragonal PdO matrix(IrSAs-PdO)via a lattice-confined *** optimized IrSAs-PdO-0.10 exhibited remarkable OER activity with an overpotential of 277 mV at 10 mA·cm^(-2) and long-term stability of 1000 h in 0.5 M H_(2)SO_(4).Furthermore,the turnover frequency attains 1.6 s^(-1) at an overpotential of 300 mV with a 24-fold increase in the intrinsic *** high activity originates from isolated iridium sites with low valence states and decreased Ir–O bonding covalency,and the excellent stability is a result of the effective confinement of iridium sites by Ir–O–Pd ***,we demonstrated for the first time that SACs have great potential in realizing ultralow loading of iridium(as low as microgram per square center meter level)in a practical water electrolyzer.

关键词： lattice confinement iridium single atoms ultralow iridium loading acidic oxygen evolution proton exchange membrane water electrolysis

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Construction and validation of a pancreatic cancer prognostic model based on genes related to the hypoxic tumor microenvironment

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World Journal of Gastroenterology 2024年第36期30卷 4057-4070页

作者： Fan Yang Na jiang Xiao-Yu Li xing-Si Qi Zi-Bin Tian Ying-Jie Guo Department of Gastroenterology The Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina

BACKGROUND Pancreatic cancer is one of the most lethal malignancies,characterized by poor prognosis and low survival *** prognostic factors for pancreatic cancer offer inadequate predictive accuracy,often failing to capture the complexity of the *** hypoxic tumor microenvironment has been recognized as a significant factor influencing cancer progression and resistance to *** study aims to develop a prognostic model based on key hypoxia-related molecules to enhance prediction accuracy for patient outcomes and to guide more effective treatment strategies in pancreatic *** To develop and validate a prognostic model for predicting outcomes in patients with pancreatic cancer using key hypoxia-related *** This pancreatic cancer prognostic model was developed based on the expression levels of the hypoxia-associated genes CAPN2,PLAU,and *** results were validated in an independent *** study also examined the correlations between the model risk score and various clinical features,components of the immune microenvironment,chemotherapeutic drug sensitivity,and metabolism-related ***-time quantitative PCR verification was conducted to confirm the differential expression of the target genes in hypoxic and normal pancreatic cancer cell *** The prognostic model demonstrated significant predictive value,with the risk score showing a strong correlation with clinical features:It was significantly associated with tumor grade(G)(bP<0.01),moderately associated with tumor stage(T)(aP<0.05),and significantly correlated with residual tumor(R)status(bP<0.01).There was also a significant negative correlation between the risk score and the half-maximal inhibitory concentration of some chemotherapeutic ***,the risk score was linked to the enrichment of metabolism-related pathways in pancreatic *** The prognostic model based on hypoxia-related genes effectively predicts pancreati

关键词： Pancreatic cancer Hypoxia Prognostic model Immune microenvironment Metabolism pathway

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Inhibiting shuttle effect of lithium polysulfides by double metal selenides for high-performance lithium-sulfur batteries

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Rare Metals 2024年第6期43卷 2546-2559页

作者： Lei Li Xue-Jing Yang Yi-Yang Li Bo Jin Hui Liu Meng-Yang Cui Dong-Bo Guan xing-You Lang Qing jiang Key Laboratory of Automobile Materials Ministry of Educationand College of Materials Science and EngineeringJilin UniversityChangchun 130022China

Lithium-sulfur batteries(LSBs)have attracted the attention of more and more researchers due to the advantages of high energy density,environmental friendliness,and low production ***,the low electronic conductivity of active material and shuttling effect of lithium polysulfides(LiPSs)limit the commercial development of *** solve these problems,we design a core-shell composite with nitrogen-doped carbon(NC)and two types of selenides(FeSe_(2)-NC@ZnSe-NC).The FeSe_(2)-NC@ZnSe-NC has a strong adsorption capacity,and can effectively adsorb *** the same time,it also effectively alleviates the shuttling effect of LiPSs,and improves the utilization of the active substance during the charge/discharge reaction *** mechanism involved in FeSe_(2)-NC@ZnSe-NC is demonstrated by both experiments and density-functional theory(DFT)*** electrochemical test results indicate that LSB with S/FeSe_(2)-NC@ZnSe-NC delivers an initial discharge capacity of 1260 mAh·g^(-1)at *** after 500 cycles at 1C,the capacity decay rate per cycle is 0.031%,and the capacity retention rate is 85%.The FeSe_(2)-NC@ZnSe-NC core-shell structure verifies a rational strategy to construct an electrode material for high-performance LSBs.

关键词： Lithium-sulfur batteries Shuttling effect Metal selenide Nitrogen-doped carbon Lithium polysulfides

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Correlation of gut microorganisms and non-volatile flavor substances provides new insights for breeding Scylla paramamosain

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Journal of Oceanology and Limnology 2024年第4期42卷 1336-1347页

作者： Gao GAO xing LI Kangxiang QIN Yun HU Xiaosong jiang Chenxi CHE Yuntao LI Changkao MU Chunlin WANG Huan WANG School of Marine Science Ningbo UniversityNingbo 315211China Key Laboratory of Applied Marine Biotechnology Ministry of EducationNingbo UniversityNingbo 315211China

The farming of Scylla paramamosain with specific flavors has a higher commercial value,and the flavors are related to the integrated farming environment and non-volatile flavor substances,while the survival environment is one of the important ways to source gut microorganisms in the *** this study,the levels of dominant taxa in the gut flora of *** from Mong Cai,Vietnam(VN),Taishan City,Guangdong Province(TS)of China,and Ninghai County,Ningbo City(NB)Zhejiang Province of China converged with those of *** from Sanmen County,Ningbo City(CK 1,CK 2,and CK 3)at 28 d of *** top 15 genera with the highest abundance of VN,TS,and NB gut flora were the same as CK 1,CK 2,and CK 3,but with different percentages,and gradually converged to CK 1,CK 2,and CK 3,respectively,at 28 d of *** between intestinal flora and non-volatile flavor substances in the hepatopancreas at the percentage level of relative abundance of bacterial genera found that above 28 d of domestication,Muribaculaceae,Psychrilyobacter,Clostridia_vadinBB 60_group,Halarcobacter Carboxylicivirga,Sediminispirochaeta may be the most important genera affecting flavor amino acids of ***,Carboxylicivirga,Halarcobacter,Photobacterium,ZOR 0006,Psychrilyobacter,and Pseudomonas may be the most important genera affecting flavor amino acids of ***,Carboxylicivirga,Halarcobacter,Photobacterium,ZOR 0006,Vibrio,and Sphingomonas may be the most important genera affecting flavor amino acids of *** results show that the intestinal flora structure of crabs from different areas were domesticated in the same area for at least 28 d before they converged to that of the domesticated crab,and the most important genera affecting the flavor amino acids of TS,VN,and NB were also *** results of this study provide a reference and basis for the technique of directional cultivation of the flavor quality of the crab.

关键词： survival environment Scylla paramamosain intestinal flora structure non-volatile flavor substance directional breeding

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The effect of secondary phase on corrosion behaviors of the titanium–zirconium–molybdenum alloy

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Tungsten 2024年第2期6卷 342-354页

作者： Song-Wei Ge Ping Hu Jie Deng Shi-Lei Li Hai-Rui xing Jia-Yu Han xing-jiang Hua Li Wang Jun-Zhou Yang Bo Jin Wen Zhang Kuai-She Wang School of Metallurgy Engineering Xi’an University of Architecture and TechnologyXi’an 710055China National and Local Joint Engineering Research Center for Functional Materials Processing Xi’an University of Architecture and TechnologyXi’an 710055China Western Xinxing Rare and Precious Metals Co. Ltd.Shangluo 726000China Northwest Institute for Non-Ferrous Metal Research Xi’an 710016China

As the range of applications for molybdenum and its alloys has expanded,the corrosive environment for molybdenum alloys has become more *** the past,the content of doping elements has been studied to investigate their infl uence on the corrosion performance of titanium–zirconium–molybdenum(TZM)*** this paper,it is considered that the second phase in the alloy is the main factor aff ecting the corrosion performance of TZM *** comparing the corrosion behavior of molybdenum metal and TZM alloy,the eff ect of the secondary phase on corrosion behaviors of TZM alloy has been *** results show that the second phase reduces the corrosion resistance of the TZM *** potential of the second phase is 73.7 mV higher than that of the Mo matrix,which contributes to the formation of microscopic electric *** the action of microscopic electric couples,pitting corrosion is preferentially formed at the interface between the second phase and the matrix,which accelerates the corrosion of the *** paper provides a theoretical basis for the application of TZM alloys in corrosive environments.

关键词： Secondary phase Electrochemical corrosion Titanium–zirconium–molybdenum(TZM) Galvanic corrosion Corrosion resistance

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