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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1199-1213页

作者： DING Rui HE Yue LI Xingchen LI Han TIAN Hao WANG Hongen School of Materials Science and Engineering Jilin Jianzhu UniversityChangchun 130118China Ziyang Urban construction Investment Group Co. LtdNanchong 637000China Shandong Taihe Urban construction Development Co. Ltd.Jining 272000China

This paper studied the effects of different retarders on the performance of the"one-step"alkali-activated composite cementitious material(ACCM)which is composed of ground granulated blast slag(GGBS)and fly ash(FA),and analyzed its mechanical properties,hydration mechanism,and retardation *** effects of retarders on the hydration products,mechanical properties,and hydration kinetics of ACCM were investigated using XRD,SEM,FTIR,EDS,and thermoactive *** results showed that Na_(2)B_(4)O_(7)·10H_(2)O(B)delayed the exotherm during the alkali activation process and could effectively delay the setting time of ACCM,but the mechanical properties were slightly *** setting time of ACCM increased with the increase in SG content,but the mechanical properties of ACCM decreased with the increase in SG content.C1_(2)H_(22)O_(11)(CHO)could effectively delay the hydration reaction of ACCM and weakly enhanced the compressive strength.H_(3)PO_(4)(HP)at a concentration of 0.05 mol/L had a certain effect on ACCM retardation,but HP at a concentration of 0.07 and 0.09 mol/L had an effect of promoting the setting and hardening time of ACCM.

关键词： "one-step"alkali-activated composite cementitious materials solid activator hydration mechanism retarder retarding mechanism

Hydration Behavior and Cementitious Properties of Calcium Carbonate-aluminate Minerals Composite

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 126-133页

作者：王冲周帅 ZOU Luyao LIU Jiawen ZHENG Yalin College of Materials Science and Engineering Chongqing UniversityChongqing 400045China China West construction Group Co. Ltd.Chengdu 610015China

The purpose of this research is to investigate the hydration behavior and cementitious properties of the mixture of calcium carbonate and aluminate, and to explore whether it can be adopted as a new low-carbon cementitious material. The composite system of calcium carbonate and aluminate minerals is studied by measuring the component of hydration products, the hydration heat, setting time and compressive *** results prove that the composite system has certain cementitious properties and is feasible to prepare new low-carbon cement.

关键词： limestone hydrated calcium carboaluminate cementitious properties mechanical properties

Research progress of CO_(2) capture and mineralization based on natural minerals

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1208-1227页

作者： Chenguang Qian Chunquan Li Peng Huang Jialin Liang Xin Zhang Jifa Wang Jianbing Wang Zhiming Sun School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China Shanghai construction Building Material Technology Group Shanghai 200080China

Natural minerals,such as kaolinite,halloysite,montmorillonite,attapulgite,bentonite,sepiolite,forsterite,and wollastonite,have considerable potential for use in CO_(2) capture and mineralization due to their abundant reserves,low cost,excellent mechanical prop-erties,and chemical *** the past decades,various methods,such as those involving heat,acid,alkali,organic amine,amino sil-ane,and ionic liquid,have been employed to enhance the CO_(2) capture performance of natural minerals to attain high specific surface area,a large number of pore structures,and rich active *** research on CO_(2) capture by natural minerals will focus on the full utiliza-tion of the properties of natural minerals,adoption of suitable modification methods,and preparation of composite materials with high specific surface area and rich active *** addition,we provide a summary of the principle and technical route of direct and indirect mineralization of CO_(2) by natural *** process uses minerals with high calcium and magnesium contents,such as forsterite(Mg_(2)SiO_(4)),serpentine[Mg_(3)Si_(2)O(OH)_(4)],and wollastonite(CaSiO_(3)).The research status of indirect mineralization of CO_(2) using hydro-chloric acid,acetic acid,molten salt,and ammonium salt as media is also introduced in *** recovery of additives and high-value-added products during the mineralization process to increase economic benefits is another focus of future research on CO_(2) mineralization by natural minerals.

关键词： natural mineral carbon dioxide capture modification composite material carbon dioxide mineralization

The emerging roles of lysine-specific demethylase 4A in cancer:Implications in tumorigenesis and therapeutic opportunities

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Genes & Diseases 2024年第2期11卷 645-663页

作者： Guanjun Yang Changyun Li Fan Tao Yanjun Liu Minghui Zhu Yu Du Chenjie Fei Qiusheng She Jiong Chen State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Ningbo UniversityNingboZhejiang 315211China School of Life Science and Engineering Henan University of Urban ConstructionPingdingshanHenan 467044China Laboratory of Biochemistry and Molecular Biology School of Marine SciencesNingbo UniversityNingboZhejiang 315211China Key Laboratory of Aquacultural Biotechnology Ministry of Education Ningbo UniversityNingboZhejiang 315211China

Lysine-specific demethylase 4 A(KDM4A,also named JMJD2A,KIA0677,or JHDM3A)is a demethylase that can remove methyl groups from histones H3K9me2/3,H3K36me2/3,and H1.4K26me2/*** evidence suggests that KDM4A is not only involved in body homeostasis(such as cell proliferation,migration and differentiation,and tissue development)but also associated with multiple human diseases,especially ***,an increasing number of studies have shown that pharmacological inhibition of KDM4A significantly attenuates tumor progression in vitro and in vivo in a range of solid tumors and acute myeloid *** there are several reviews on the roles of the KDM4 subfamily in cancer development and therapy,all of them only briefly introduce the roles of KDM4A in cancer without systematically summarizing the specific mechanisms of KDM4A in various physiological and pathological processes,especially in tumorigenesis,which greatly limits advances in the understanding of the roles of KDM4A in a variety of cancers,discovering targeted selective KDM4A inhibitors,and exploring the adaptive profiles of KDM4A ***,we present the structure and functions of KDM4A,simply outline the functions of KDM4A in homeostasis and non-cancer diseases,summarize the role of KDM4A and its distinct target genes in the development of a variety of cancers,systematically classify KDM4A inhibitors,summarize the difficulties encountered in the research of KDM4A and the discovery of related drugs,and provide the corresponding solutions,which would contribute to understanding the recent research trends on KDM4A and advancing the progression of KDM4A as a drug target in cancer therapy.

关键词： Cancer therapy Drug resistance Histone demethylation JmjC domain KDM4A

Structural parameter optimization of a furrow opener based on EDEM software

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International Journal of Agricultural and Biological Engineering 2024年第3期17卷 115-120页

作者： Longjie Wang Bin Zhou Chang Wan Ling Zhou College of Mechanical and Electrical Engineering Tarim UniversityAlar 843300XinjiangChina Modern Agricultural Engineering Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region Alar 843300XinjiangChina Xinjiang Production and construction Corps(XPCC)Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry products in Southern Xinjiang Alar 843300XinjiangChina

To reduce the ditching resistance of a furrow opener during operation,single-factor and multiple-factor combinations were used to explore the influence of the furrow opener’s advance speed,blade opening angle,and width on the ditching resistance based on the discrete element method(DEM).A DEM simulation of the furrow opener was *** changing these influencing factors,the parameters with the least resistance to operation were *** openers were fabricated according to the optimized results,and soil trench tests were carried *** and soil groove tests showed that the minimum ditching resistance was 58.54 N when the current advance speed was 4.47 m/s,the blade opening angle was 32.02°,and the furrow opener width was 51.45 *** error between the simulated value of the ditching resistance and the soil trench test was within 10%,and the trends of resistance change were essentially the same,indicating that it is feasible to optimize the structural parameters of a trench furrow opener using *** research results can provide a reference for the parameter optimization of furrow openers.

关键词： furrow opener discrete element optimization ditching resistance

Defatted Hickory Meal Hydrolysate's Impact on Memory Impairment Induced by D-Galactose in Mice

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Food Science and Human Wellness 2024年

作者： Fanping Qin Ruiling Liu Qi Kong Hangjun Chen Xiangjun Fang Huizhi Chen Weijie Wu Haiyan Gao State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Key Laboratory of Post-Harvest Vegetable Preservation and Processing (Co-construction by Ministry and Province)， Ministry of Agriculture and Rural Affairs，Key Laboratory of Light Industry Fruit and Vegetable Preservation and Processing， Institute of Food Science， Zhejiang Academy of Agricultural Sciences

Defatted hickory meal (DHM)， a by-product of hickory oil production， is a protein source rich in essential amino acids. In this study， the functional properties of DHM hydrolysate (DHMH) were assessed using in vitro and in vivo assays in context to its antioxidant and memory-enhancing effects. To induce memory impairment， D-galactose (D-gal) was administered to mice at a dose of 120 mg/kg body weight per day， and DHMH was orally administered at doses of 300， 600， and 1000 mg/kg body weight per day for 8 weeks. DHMH treatment led to improved memory performance in D-gal-induced memory-impaired mice， as observed in the Morris water maze test. Furthermore， DHMH mitigated the accumulation of amyloid beta 1-42 triggered by D-gal exposure. Notably， high-dose DHMH significantly reduced the elevation of pro-inflammatory markers， including tumor necrosis factor alpha， interleukin 1β， and interleukin 6. Additionally， DHMH prevented the decline in total superoxide dismutase activity， glutathione peroxidase activity， and glutathione levels， while reducing malondialdehyde content in D-gal-induced mice， indicative of its antioxidant properties. Moreover， DHMH treatment effectively prevented histological alterations in neurons within the hippocampal CA1 area induced by D-gal. Collectively， our findings suggest that DHMH may counteract memory dysfunctions resulting from oxidative stress injury in the brain， positioning it as a potential candidate for use as a functional food.

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Carbonation of Pure Minerals in Portland Cement:Evolution in products as a Function of Water-to-solid Ratio

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1214-1222页

作者： XIONG Kun SHANG Xiaopeng LI Hongyan WANG Dan Zhengzhou Lutong Highway construction Co. Ltd.Zhengzhou 450052China (Special Glass Key Lab of Hainan Province)&(State Key Laboratory of Marine Resource Utilization in South China Sea) Hainan UniversityHaikou 570228China Department of Architectural Engineering Shandong Urban Construction Vocational CollegeJinan 250103China (State Key Laboratory of High Performance Civil Engineering Materials Jiangsu Sobute New Materials Co.Ltd.)&(School of Material Science and EngineeringSoutheast UniversityNanjing 211189China)

Minerals in Portland cement including tricalcium silicate(C_(3)S),β-dicalcium silicate(β-C_(2)S),tricalcium aluminate(C_(3)A),and tetracalcium ferroaluminate(C_(4)AF),show a significantly different activity and product evolution for CO_(2)curing at various water-to-solid *** pure minerals were synthesized and subject to CO_(2)curing in this study to make an in-depth understanding for the carbonation properties of cement-based *** showed that the optimum water-to-solid ratios of C_(3)S,β-C_(2)S,C_(3)A and C_(4)AF were 0.25,0.15,0.30 and 0.40 for carbonation,corresponding to 2 h carbonation degree of 38.5%,38.5%,24.2%,and 21.9%,*** produced calcite duringβ-C_(2)S carbonation decreased as the water-to-solid ratio increased,with an increase in content of metastable CaCO_(3)of vaterite and *** thermodynamic stability of CaCO_(3)produced during carbonation was C_(3)A>C_(4)AF>β-C_(2)S>C_(3)*** carbonation degree of Portland cement was predicted based on the results of pure minerals and the composition of cement,and the error of predicted production of CaCO_(3)was only 1.1%,which provides a potential method to predict carbonation properties of systems with a complex mineral composition.

关键词： accelerated carbonation portland cement calcium carbonate water-to-solid ratio

Influence of Polyaluminum Chloride Residue on the Strength andMicrostructure of Cement-Based Materials

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Fluid Dynamics & Materials Processing 2024年第6期20卷 1299-1312页

作者： Ping Xu Zhiwei Zhang Zhenguo Hou Mankui Zheng Jin Tong School of Civil Engineering Henan Polytechnic UniversityInternational Joint Research Laboratory of Henan Province for Underground Space Development and Disaster PreventionJiaozuo454003China China construction Seventh Engineering Division Co. Ltd.Zhengzhou450004China China construction Seventh Engineering Division Co. Ltd.General Contracting CompanyZhengzhou450004China

In this paper,cement and dechlorinated Polyaluminum Chloride Residue(PACR)have been used to prepare a net slurry and mortar *** hydration activity indicators have been used to quantitatively analyze the dechlorinated PACR hydration *** particular,the effect of dechlorinated PACR content on the compressive strength of mortar has been assessed by means of compressive strength ***,X-ray diffraction(XRD)and scanning electron microscopy(SEM)have been employed to observe the microstructure of the considered hydration *** following results have been *** 28th day activity index of the dechlorinated PACR is 75%,and therefore it meets the criterion for the use of active *** increase in the content of the dechlorinated PACR tends to reduce the compressive strength of mortar specimens,however,it is beneficial to its later strength *** the content is not greater than 10%,the strength remains unchanged,otherwise,it *** PACR does not form a new crystalline phase in the cement slurry,and the dechlorinated PACR remains active until the age of the 28th *** inclusion of the PACR mainly deteriorates the early strength of the cement slurry,but it promotes the production of hydration products in the cement slurry after the 7th day.

关键词： Dechlorinated polyaluminum chloride residue activity index strength microstructure hydration product

How Does Participation in Agricultural Cooperatives Affect the Performance of Family Farms?——Empirical Evidence from 553 Planting Family Farms in Xinjiang Corps

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Journal of Systems Science and Information 2024年

作者： Zhiping HUANG Na LI Xishan Farmland The 12th Division of Xinjiang Production and Construction Corps School of Economics and Management University of Chinese Academy of Sciences

Participation in agricultural cooperative organizations is an important form of industrial chain organization expansion, but also an important way to effectively reduce industrial chain transaction costs and promote the quality and efficiency improvement of new agricultural business *** on the micro-survey data of 553 family farms in Xinjiang Corps in 2021, this paper uses stochastic frontier approach to measure the business performance of family farms in Xinjiang Corps, and discusses the action mechanism and difference in the influence of participation in agricultural cooperative organizations on the business performance of family farms. The research shows that participation in agricultural cooperative organizations can significantly improve the business performance of family farms through such mechanisms as easing the constraints of farm credit financing, reducing the transaction costs of agricultural products, and promoting the adoption of agricultural technologies. Compared with food farms, cotton and fruit and vegetable family farms have more obvious performance improvement in participating in agricultural cooperative organizations. Moreover, participation in agricultural cooperation organizations has a stronger effect on the performance improvement of farms in northern Xinjiang. It is found that the vertical extension of the industrial chain between”family farm+agricultural cooperative organization” and network marketers, chain supermarkets, industrial leading enterprises and agricultural production and marketing enterprises is conducive to the improvement of the business performance of family farms, among which the performance improvement effect of”family farm+agricultural cooperative organization+network marketers” mode is more obvious. The research provides a scientific reference for deepening the expansion of the industrial chain organization and promoting the quality-oriented growth of family farms in the new era.

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The carbon border adjustment mechanism is inefficient in addressing carbon leakage and results in unfair welfare losses

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Fundamental Research 2024年第3期4卷 660-670页

作者： Xinlu Sun Zhifu Mi Lu Cheng D'Maris Coffman Yu Liu The Bartlett School of Sustainable construction University College LondonLondon WC1E 7HBUnited Kingdom College of Urban and Environmental Sciences Peking UniversityBeijing 100871China

The European Commission has proposed a Carbon Border Adjustment Mechanism(CBAM)to reduce carbon leakage and create a level playing field for its domestic products and imported ***,the effectiveness of the proposal remains unclear,especially when it triggers threats of retaliation from trading partners of the European *** apply a Computable General Equilibrium model-Global Trade Analysis Project-to assess the economic and environmental impacts of different CBAM *** we show that the effectiveness of the CBAM to address carbon leakage risks is rather limited,and the CBAM raises concerns over global welfare costs,Correct to Gross Domestic Product(GDP)losses,and violation of equality *** retaliation leads to multiplied welfare losses,which would mostly be borne by poor *** results question the carbon leakage reduction effect of a unilateral trade policy and suggest that climate change mitigation still needs to be performed within the framework of international cooperation.

关键词： Carbon border adjustment mechanism Carbon leakage Climate change mitigation Floorcarbon price Trade retaliation