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Effects of Using Municipal Solid Waste Incineration Tailings as Lightweight Aggregate on the Mechanical Properties of Specified Density Concrete
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作者 SHANG Minggang FENG Qiong +5 位作者 ZHANG Yunsheng HE Zhongmao QIAO Hongxia XUE Cuizhen WANG Jinpen HAN Yuehui 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2024年第5期1229-1245,共17页
Municipal solid waste incineration tailings were used as lightweight aggregate(MSWIT-LA)in the preparation of specified density concrete to study the effects on compressive strength,axial compressive strength,flexural... Municipal solid waste incineration tailings were used as lightweight aggregate(MSWIT-LA)in the preparation of specified density concrete to study the effects on compressive strength,axial compressive strength,flexural strength,microhardness,total number of pores,pore area,and pore spacing.The results showed that the internal curing and morphological effects induced by an appropriate quantity of MSWIT-LA improved the compressive response of specified density concrete specimens,whereas an excessive quantity of MSWIT-LA significantly reduced their mechanical properties.An analysis of pore structure indicated that the addition of MSWIT-LA increased the total quantity of pores and promoted cement hydration,resulting in a denser microstructure than that of ordinary concrete.The results of a principal component analysis showed that the mechanical response of specified density concrete prepared with 25%MSWIT-LA was superior to that of an equivalent ordinary concrete.It was therefore concluded that MSWIT-LA can be feasibly applied to achieve excellent specified density concrete properties while utilising municipal solid waste incineration tailings to protect the environment and alleviate shortages of sand and gravel resources. 展开更多
关键词 municipal solid waste incineration tailings X-ray computed tomography lightweight aggregate MICROHARDNESS principal component analysis
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Field Trapping Technology of Sex Attractants against Major Pests of Broccoli
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作者 Liu Weiming Wang Enguo +1 位作者 Liu Yenan He Xianbiao 《Plant Diseases and Pests》 CAS 2020年第1期22-29,共8页
[Objective]The paper was to explore the comprehensive sexual attraction control technology of main pests in broccoli,and to improve the green control technology of main pests in broccoli.[Method]The comprehensive cont... [Objective]The paper was to explore the comprehensive sexual attraction control technology of main pests in broccoli,and to improve the green control technology of main pests in broccoli.[Method]The comprehensive control technology of sex attractants against major pests in broccoli was studied by using special sex attractants,lures and traps.[Result]The mixed quantities of Spodoptera litura,Spodoptera exigua and Plutella xylostella were fluctuated in a"W"shape in broccoli growing season in coastal area of Taizhou,central Zhejiang province,including seedling growth period(July to August),rosette and bud growth period(late September to early November),late harvest period of late-ripening broccoli(after early march).S.exigua and S.litura occurred severely at seedling stage;S.litura,S.exigua and P.xylostella occurred simultaneously at rosette and bud growth period;P.xylostella damaged florets of lateral branches in late harvest period.The trapping effects of combination A and E against S.litura,S.exigua and P.xylostella were the best;more than 1260 individuals of S.litura,S.exigua and P.xylostella were daily trapped per hectare,and the occurrence and damage of the three insect pests could be basically controlled.With the sex attract produced in Ningbo as an example,the combination of S.litura S type∶S.exigua S type∶P.xylostella blue type=1∶1∶4 distributed in five stars of clubs(space 10-20 cm)showed good comprehensive trapping effect in large area demonstration;traps were hung at the height of 0.5 m(0.2 m for P.xylostella),and lures were replaced once every 30-40 d.[Conclusion]Using special sex attractants,the comprehensive effects on S.litura,S.exigua and P.xylostella were determined at rosette and bud growth period of broccoli through combination modes,and supporting application technology were put forward,making great progress in exploring and improving sex attractant combination against insect pests. 展开更多
关键词 BROCCOLI Sex ATTRACTANT SPODOPTERA litura SPODOPTERA EXIGUA PLUTELLA XYLOSTELLA
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An Experimental Study on Constant Current Load Test of Reinforced Concrete based on 3D Paraffin Isolation
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作者 SHANG Minggang XUE Cuizhen +5 位作者 ZHANG Yunsheng HEZhongmao QIAO Honzxin PENG Qiong Theogene Hakuzweyezu HAN Zhao 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2023年第2期353-365,共13页
Aiming at the complex corrosion degradation factors of reinforced concrete and clearing the deterioration mechanism in the constant stress state,a new type of constant current accelerated corrosion method in the salin... Aiming at the complex corrosion degradation factors of reinforced concrete and clearing the deterioration mechanism in the constant stress state,a new type of constant current accelerated corrosion method in the saline soil environment was developed.The three-dimensional paraffin isolation specimens and the three-dimensional penetration specimens were taken as the research objects,and the Cl−content and AC impedance Bode diagram were measured.The macro morphology and micro analysis were also used to evaluate the corrosion degradation laws of the two groups of specimens.A constant current three-factor system accelerated model was established for the current acceleration factor,chloride ion,and sulfate ion acceleration factor.The experimental results show that,in the constant stress test of the saline soil environmental conditions,the paraffin isolation layer can effectively isolate corrosive chloride ions,which is a brand-new research method of single factor variable control in the constant stress test.According to the basic corrosion data,the law of constant current acceleration test is summarized and divided into five corrosion degradation stages,and each stage has significant changes in the accelerated corrosion efficiency.The corrosion degradation of a constant stress test is the combined effect of constant current,positive and negative penetration of chloride ions and sulfate ions. 展开更多
关键词 Cl−content AC impedance constant stress test acceleration factor full factor life cycle
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Transcriptome analysis reveals effects of red and blue lightemitting diodes(LEDs)on the growth,chlorophyll fluorescence and endogenous plant hormones of potato(Solanum tuberosum L.)plantlets cultured in vitro 被引量:4
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作者 CHEN Li-li WANG Hao-ying +3 位作者 GONG Xiao-chen ZENG Zhao-hai XUE Xu-zhang HU Yue-gao 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第11期2914-2931,共18页
Red and blue light illumination has been reported to significantly affect plantlet growth.Potato is an important food and feed crop in the world and potato plantlet cultured in vitro plays an important role in potato ... Red and blue light illumination has been reported to significantly affect plantlet growth.Potato is an important food and feed crop in the world and potato plantlet cultured in vitro plays an important role in potato production.However,few studies have documented the effects of red and blue light on the growth of potato plantlets revealed at the transcriptome level.The objective of this study was to determine the growth and physiological responses of potato plantlets cultured in vitro under monochromatic red(RR),monochromatic blue(BB)as well as combined red and blue(RB)LEDs using the RNA-Seq technique.In total,3150 and 814 differentially expressed genes(DEGs)were detected in potato plantlets under RR and BB,respectively,compared to RB(used as control).Compared to the control,the DEGs enriched in"photosynthesis"and"photosynthesis-antenna proteins"metabolic pathways were up-regulated and down-regulated by BB and RR,respectively,which might be responsible for the increases and decreases of maximum quantum yield(F_(v)/F_(m)),photochemical quantum yield(φ_(PSII)),photochemical quenching(q_(P))and electron transfer rate(ETR)in BB and RR,respectively.Potato plantlets exhibited dwarfed stems and extended leaves under BB,whereas elongated stems and small leaves were induced under RR.These dramatically altered plantlet phenotypes were associated with variable levels of endogenous plant hormones gibberellin(GAs),indoleacetic acid(IAA)and cytokinins(CKs),as assessed in stems and leaves of potato plantlets.In addition,monochromatic red and blue LEDs trigged the opposite expression profiles of DEGs identified in the"plant hormone signal transduction"metabolic pathway,which were closely related to the endogenous plant hormone levels in potato plantlets.Our results provide insights into the responses of potato plantlets cultured in vitro to red and blue LEDs at the transcriptomic level and may contribute to improvements in the micro-propagation of potato plantlets cultured in vitro from the light spectrum aspect. 展开更多
关键词 potato(Solanum tuberosum L.)plantlets in vitro red/blue LEDs light sources RNA-seq chlorophyll fluorescence plant hormone
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Ballistic impact response of resistance-spot-welded(RSW) double-layered plates for Q&P980 steel
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作者 Bo-han Ma Dong-fang Ma +2 位作者 Huan-ran Wang Da-nian Chen Feng-hua Zhou 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2022年第6期1052-1064,共13页
Ballistic impact response of resistance-spot-welded(RSW)double-layered(2×1.6 mm)plates(190 mm×150 mm)for Q&P980 steel impacted by a round-nosed steel bullet(12 mm diameter and 30 mm length)was investigat... Ballistic impact response of resistance-spot-welded(RSW)double-layered(2×1.6 mm)plates(190 mm×150 mm)for Q&P980 steel impacted by a round-nosed steel bullet(12 mm diameter and 30 mm length)was investigated by using gas gun and high-speed camera system.The RSW specimens were spot welded using a 6 mm diameter electrode face producing a 7.2 mm diameter fusion zone of the spot weld.The ballistic curve and energy balance for the tests of the spot weld of the RSW specimens at different velocity were analyzed to characterize the ballistic behavior of the RSW specimens under bullet impact.The fracture mechanisms of the RSW specimens under bullet impact were presented.For the tests below the ballistic limit,the cracks initiated from the notch-tip and propagated along the faying surface or obliquely through the thickness depending on the impact velocity.For the tests above the ballistic limit,the plug fracture in the front plate of the RSW specimen could be caused by the thinning-induced necking in the BM near the HAZ,while the plug fracture in the rear plate of the RSW specimens may be consist of the circumferential cracking from the rear surface and the bending fracture of the hinged part of material.The effects of the electrode indentation and the weld interfaces on deformation and fracture of the RSW specimens under bullet impact were revealed.For the tests above the ballistic limit,the circumferential fracture from the rear surface of the RSW specimens was always initiated along the interior periphery of the electrode indentation and the crack paths were along the FZ/CGHAZ or CGHAZ/FGHAZ interface.When the circumferential crack also formed outside the electrode indentation,the fracture on the BM/HAZ interface could be found.On the front plate of the RSW specimens,the shear/bending induced cracking from the notch-tip were observed and the crack paths were along the FZ/CGHAZ or CGHAZ/FGHAZ interface. 展开更多
关键词 RSW Q&P980 steel Ballistic impact Deformation Fracture
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Fuzzy-TOPSIS Evaluation of Power Product-Service System:A Framework Driven by Big Data
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作者 Xuchang Hu 《Energy Engineering》 EI 2022年第1期301-314,共14页
Power product-service system(power PSS),which combines industrial electric products with electric energy services,is an effective solution for power enterprises under the background of the rapid development of power s... Power product-service system(power PSS),which combines industrial electric products with electric energy services,is an effective solution for power enterprises under the background of the rapid development of power systems.In the life cycle of power PSS,evaluation decision of power PSS alternatives is of great significance for subsequent implementation.To address the power PSS alternative evaluation problem,a power PSS evaluation framework is explored driven by the big data of stakeholder comments.Based on the multi-stakeholder comments of power PSS evaluation decision’s influence factors,the index system is constructed through analyzing and summarizing the co-occurrence matrix and semantic network diagram of high-frequency words.To determine the fuzzy index value of power PSS alternative,the stakeholders’vague opinions expressed by trapezoidal fuzzy number are integrated by group decision method.Fuzzy concept is introduced into the classical Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS)method and fuzzy-TOPSIS method is put forward by using the fuzzy index value.The improved TOPSIS is adopted to sequence the power PSS alternatives.The case of power PSS evaluation of six alternatives for a power enterprise shows that the explored framework is effective and can provide a feasible solution for power PSS alternative evaluation. 展开更多
关键词 Power product-service system big data trapezoidal fuzzy number fuzzy-TOPSIS
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Occurrence and Damage Regularity of Spodoptera litura in Broccoli
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作者 Weiming Liu Enguo Wang Yenan Liu 《Plant Diseases and Pests》 CAS 2021年第4期5-8,共4页
[Objective] The paper was to explore the occurrence and damage regularity of Spodoptera litura in broccoli,and to reveal the annual movement regularity and seasonal fluctuation regularity of S.litura population.[Metho... [Objective] The paper was to explore the occurrence and damage regularity of Spodoptera litura in broccoli,and to reveal the annual movement regularity and seasonal fluctuation regularity of S.litura population.[Method] The monitoring data of sexual attractants at fixed points for 11 consecutive years were summarized and analyzed.[Result] The large occurrence frequency of S.litura in Taizhou was 36.4%;the annual movement showed a downward-opening parabolic form,and the movement trajectory was N =-18.416 t^(2)+182.51 t +179.71,t ={1,2,3,…,n}(n =11;r =0.691 7*).The seasonal fluctuation showed a trend of peak oscillation attenuation curve,and the total moth quantity gradually decreased from sowing to heading stage.The functional model of average daily quantity was m=0.000 2 d^(2)-0.067 5 d+6.797 3,d={1,2,3,…,n}(n =186,r=0.955 2**).Air temperature was the main external factor affecting the seasonal variation of quantity,and there was a significant correlation be-tween the number of ten-day moth trapping quantity and ten-day average temperature:M =0.243 T^(2)-6.935 1 T +46.681(n =108,r =0.560 2**)or M=2.734 4 T-35.446(n=108,r=0.500 3**).Therefore,the moth quantity in the field increased with the increase of ten-day average temperature,and the period from July to September with high temperature and less rainfall was the peak occurrence period of S.litura.[Conclusion] These models can be used to improve the prediction and early warning levels of S.litura in broccoli,and has good guiding significance for decision-making and prevention. 展开更多
关键词 BROCCOLI Spodoptera litura Seasonal fluctuation Impact factor
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Research on Chemical Prevention and Control against Stem Base Rot of Sweet Potato
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作者 Liu Yenan Liu Weiming +1 位作者 He Xianbiao Huang Lifei 《Plant Diseases and Pests》 CAS 2021年第1期11-16,22,共7页
[Objective]The paper was to effectively control stem base rot of sweet potato.[Method]Chemical prevention and control test against stem base rot of sweet potato were conducted for consecutive three years from 2016 to ... [Objective]The paper was to effectively control stem base rot of sweet potato.[Method]Chemical prevention and control test against stem base rot of sweet potato were conducted for consecutive three years from 2016 to 2018.[Result]The use of carbendazim or carbendazim+mancozeb,and carbendazim+embamycin had significant control effect on stem base rot of sweet potato.However,the applied concentration should be higher than the recommended concentration.Especially the concentration of 50%carbendazim WP should be no more than 300 times,and the prevention and control effect of 100 times dilution would be better.[Conclusion]The types and concentrations of prevention and control agents are determined in the test,which will provide certain basis for chemical prevention and control against stem base rot of sweet potato. 展开更多
关键词 Sweet potato Stem base rot of sweet potato PATHOGEN Chemical prevention and control
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A Study of the Effects of the Parental Involvement on Adolescent Truancy: A Structural Modeling Investigation Examining Parental Involvement
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作者 Jiangmin Xu Liang Chen 《Psychology Research》 2021年第6期249-263,共15页
The purpose of this study was to examine how parental involvement influences their adolescents’school truancy.Structural Equation Modeling(SEM)was utilized to explore the relationships among four dimensions of parent... The purpose of this study was to examine how parental involvement influences their adolescents’school truancy.Structural Equation Modeling(SEM)was utilized to explore the relationships among four dimensions of parental involvement,individual and family characteristics,and school truancy.The findings confirm the initial hypotheses that parental involvement has positive effects on adolescent truancy.The effects of parental involvement on school truancy,however,differed according to the dimensions of that involvement and adolescents’background characteristics. 展开更多
关键词 parental involvement adolescents TRUANCY
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Determinants of Home Lighting Fuel Choices in Rwanda:A Discrete Choice Analysis
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作者 Fydess Khundi-Mkomba Umaru Garba Wali +1 位作者 Etienne Ntagwirumugara Akshay Kumar Saha 《Journal of Energy and Power Engineering》 2020年第4期131-142,共12页
Renewable technologies such as solar present some of the possibilities for indoor and outdoor lighting in the remotest rural Africa where grid connections may take ages.This paper examined the key determinants that dr... Renewable technologies such as solar present some of the possibilities for indoor and outdoor lighting in the remotest rural Africa where grid connections may take ages.This paper examined the key determinants that drive household lighting fuel using a nationally representative sample(14,415 households)across Rwanda.Results from a multinomial probit regression show that rural location,house ownership,household wealth,and nonfarm work are some of significant factors that influence lighting fuel choices in Rwanda.Robustness of the results indicates that household wealth levels and other regional differences are likely to influence choice probability for using clean energy sources such as solar confirming the need to priotise wealth generation.The study’s findings suggest the need for joint efforts by government and non-state actors to priotise household wealth generation,promotion of non-farm activities and improvement of infrastructures to reduce rural-urban bias and differences across the regions,assuming that wealth will motivate rural households to switch to clean energy sources. 展开更多
关键词 Fuel choices choice probability Rwanda households clean energy
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Estimating aquifer transmissivity using Dar-Zarrouk parameters to delineate groundwater potential zones in Alluri Seetharama Raju District,Andhra Pradesh, India 被引量:1
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作者 Bakuru Anandagajapathi Raju Palavai Venkateswara Rao Mangalampalli Subrahmanyam 《Journal of Groundwater Science and Engineering》 2023年第2期116-132,共17页
This study aimed to explore groundwater potential zones in the EGMB of Alluri Seetharama Raju district, Andhra Pradesh, India, for drinking and agriculture purposes. To achieve this goal, 72 Vertical Electrical Soundi... This study aimed to explore groundwater potential zones in the EGMB of Alluri Seetharama Raju district, Andhra Pradesh, India, for drinking and agriculture purposes. To achieve this goal, 72 Vertical Electrical Soundings(VES) were conducted using the Schlumberger electrode configuration. The resistivity sounding data were analyzed to determine the aquifer thickness, basement depth, Dar-Zarrouk parameters,and aquifer transmissivity. Spatial distribution maps were generated for these parameters to understand the subsurface formation. The analysis revealed a linear groundwater potential zone(8.46 km~2) in the eastern part of the study area, extending in the NNE-SSW direction for 9.6 km. Six VES locations(P24, P27, P29,P30, P33, and P38) in this zone exhibit good potential(>30 m aquifer thickness), while the three VES locations(OP19, P5, and P46) in the central region are recommended for drilling bore wells. Additionally,moderate aquifer thickness(20–30 m) are identified in other VES locations(OP14, OP20, P4, P10, P12,P13, P15, P17, P18, P31, P46, and P50) along streams in the western and central part of the area, which can yield reasonable quantities of water. This information is useful for groundwater exploration and watershed management to meet the demands of tribal population in the study area. 展开更多
关键词 Vertical electrical sounding Longitudinal conductance Transverse resistance Coefficient of anisotropy Potential groundwater locations
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Modeling heterogeneous behaviors with different strategies in a terrorist attack
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作者 Le BI Tingting LIU +3 位作者 Zhen LIU Jason TEO Yumeng ZHAO Yanjie CHAI 《Virtual Reality & Intelligent Hardware》 EI 2023年第4期351-365,共15页
Existing simulations of terrorist attacks do not consider individual variations.To overcome this lim-itation,we propose a framework to model heterogeneous behavior of individuals during terrorist attacks.We constructe... Existing simulations of terrorist attacks do not consider individual variations.To overcome this lim-itation,we propose a framework to model heterogeneous behavior of individuals during terrorist attacks.We constructed an emotional model that integrated personality and visual perception for pedestrians.The emotional model was then integrated with pedestrian relationship networks to establish a decision-making model that sup-ported pedestrians’altruistic behaviors.A mapping model has been developed to correlate antisocial personality traits with attack strategies employed by terrorists.Experiments demonstrate that the proposed algorithm can generate practical heterogeneous behaviors that align with existing psychological research findings. 展开更多
关键词 Terrorist attack simulation Computer animation Big Five personality Intelligent decision making Heterogeneous behaviors
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Interval Type-2 Fuzzy Model for Intelligent Fire Intensity Detection Algorithm with Decision Making in Low-Power Devices
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作者 Emmanuel Lule Chomora Mikeka +1 位作者 Alexander Ngenzi Didacienne Mukanyiligira 《Intelligent Automation & Soft Computing》 2023年第10期57-81,共25页
Local markets in East Africa have been destroyed by raging fires,leading to the loss of life and property in the nearby communities.Electrical circuits,arson,and neglected charcoal stoves are the major causes of these... Local markets in East Africa have been destroyed by raging fires,leading to the loss of life and property in the nearby communities.Electrical circuits,arson,and neglected charcoal stoves are the major causes of these fires.Previous methods,i.e.,satellites,are expensive to maintain and cause unnecessary delays.Also,unit-smoke detectors are highly prone to false alerts.In this paper,an Interval Type-2 TSK fuzzy model for an intelligent lightweight fire intensity detection algorithm with decision-making in low-power devices is proposed using a sparse inference rules approach.A free open–source MATLAB/Simulink fuzzy toolbox integrated into MATLAB 2018a is used to investigate the performance of the Interval Type-2 fuzzy model.Two crisp input parameters,namely:FIT and FIG��are used.Results show that the Interval Type-2 model achieved an accuracy value of FIO�=98.2%,MAE=1.3010,MSE=1.6938 and RMSE=1.3015 using regression analysis.The study shall assist the firefighting personnel in fully understanding and mitigating the current level of fire danger.As a result,the proposed solution can be fully implemented in low-cost,low-power fire detection systems to monitor the state of fire with improved accuracy and reduced false alerts.Through informed decision-making in low-cost fire detection devices,early warning notifications can be provided to aid in the rapid evacuation of people,thereby improving fire safety surveillance,management,and protection for the market community. 展开更多
关键词 Interval type-2(IT2)fuzzy systems mean absolute error(MAE) mean square error(MSE) root mean square
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Perturbation of autophagy pathways in murine alveolar macrophage by 2D TMDCs is chalcogen-dependent
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作者 Xiaofei Zhou Weitao Jin +3 位作者 Rui Zhang Xuan Mao Jianbo Jia Hongyu Zhou 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2024年第1期97-107,共11页
Increasing risks of incidental and occupational exposures to two-dimensional transition metal dichalcogenides(2D TMDCs)due to their broad application in various areas raised their public health concerns.While the comp... Increasing risks of incidental and occupational exposures to two-dimensional transition metal dichalcogenides(2D TMDCs)due to their broad application in various areas raised their public health concerns.While the composition-dependent cytotoxicity of 2D TMDCs has been well-recognized,how the outer chalcogenide atoms and inner transition metal atoms differentially contribute to their perturbation on cell homeostasis at non-lethal doses remains to be identified.In the present work,we compared the autophagy induction and related mechanisms in response to WS_(2),NbS_(2),WSe_(2)and Nb Se_(2)nanosheets exposures in MH-S murine alveolar macrophages.All these 2D TMDCs had comparable physicochemical properties,overall cytotoxicity and capability in triggering autophagy in MH-S cells,but showed outer chalcogen-dependent subcellular localization and activation of autophagy pathways.Specifically,WS_(2)and NbS_(2)nanosheets adhered on the cell surface and internalized in the lysosomes,and triggered m TOR-dependent activation of autophagy.Meanwhile,WSe_(2)and Nb Se_(2)nanosheets had extensive distribution in cytoplasm of MH-S cells and induced autophagy in an m TOR-independent manner.Furthermore,the 2D TMDCs-induced perturbation on autophagy aggravated the cytotoxicity of respirable benzo[a]pyrene.These findings provide a deeper insight into the potential health risk of environmental 2D TMDCs from the perspective of homeostasis perturbation. 展开更多
关键词 Chalcogen group Autophagy pathway Cell function Endosomal escape Inhalation toxicity
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New interaction solutions of the(2+1)-dimensional Nizhnik–Novikov–Veselov-type system and fusion phenomena
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作者 Guo-Hua Wang Ji Lin Shou-Feng Shen 《Communications in Theoretical Physics》 SCIE CAS CSCD 2024年第10期7-11,共5页
By means of the multilinear variable separation(MLVS) approach, new interaction solutions with low-dimensional arbitrary functions of the(2+1)-dimensional Nizhnik–Novikov–Veselovtype system are constructed. Four-dro... By means of the multilinear variable separation(MLVS) approach, new interaction solutions with low-dimensional arbitrary functions of the(2+1)-dimensional Nizhnik–Novikov–Veselovtype system are constructed. Four-dromion structure, ring-parabolic soliton structure and corresponding fusion phenomena for the physical quantity U =λ(lnf)_(xy) are revealed for the first time. This MLVS approach can also be used to deal with the(2+1)-dimensional Sasa–Satsuma system. 展开更多
关键词 interaction solution NNV-type system multilinear variable separation FUSION
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Comparative Numerical Analysis of Heat and Mass Transfer Characteristics in Sisko Al_(2)O_(3)-Eg and TiO_(2)-Eg Fluids on a Stretched Surface
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作者 K.Jyothi Abhishek Dasore +3 位作者 R.Ganapati Sk.Mohammad Shareef Ali J.Chamkha V.Raghavendra Prasad 《Frontiers in Heat and Mass Transfer》 EI 2024年第1期79-105,共27页
In the current research,a thorough examination unfolds concerning the attributes of magnetohydrodynamic(MHD)boundary layer flow and heat transfer inherent to nanoliquids derived from Sisko Al_(2)O_(3)-Eg and TiO_(2)-E... In the current research,a thorough examination unfolds concerning the attributes of magnetohydrodynamic(MHD)boundary layer flow and heat transfer inherent to nanoliquids derived from Sisko Al_(2)O_(3)-Eg and TiO_(2)-Eg compositions.Such nanoliquids are subjected to an extending surface.Consideration is duly given to slip boundary conditions,as well as the effects stemming from variable viscosity and variable thermal conductivity.The analytical approach applied involves the application of suitable similarity transformations.These conversions serve to transform the initial set of complex nonlinear partial differential equations into a more manageable assembly of ordinary differential equations.Through the utilization of the FEM,these reformulated equations are solved,considering the specified boundary conditions.The outcomes attained are graphically depicted by means of plots and tables.These visual aids facilitate a comprehensive exploration of how diverse parameters exert influence over the distributions of velocity,temperature,and concentration.Furthermore,detailed scrutiny is directed towards the fluctuations characterizing pivotal parameters,viz.,Nusselt number,skin-friction coefficient,and Sherwood number.It is identified that the Nusselt number showcases a diminishing trend coinciding with increasing values of the volume fraction parameter(φ).This trend remains consistent regardless of whether the nanoliquid under consideration is Al_(2)O_(3)-Eg or TiO_(2)-Eg based.In contrast,both the skin-friction coefficient and Sherwood number assume lower values as the volume fraction parameter(φ)escalates.This pattern remains congruent across both classifications of nanoliquids.The findings of the study impart valuable insights into the complex interplay governing the characteristics of HMT pertaining to Sisko Al_(2)O_(3)-Eg and TiO_(2)-Eg nanoliquids along an extending surface. 展开更多
关键词 MHD boundary layer flow heat transfer Sisko Al_(2)O_(3)-Eg and TiO_(2)-Eg nanoliquids slip boundary conditions variable thermal conductivity nusselt number
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Relationship between “Two Insects and One Spider” and Their Occurrence and Damage Regularity during Different Sowing Periods in Single Cropping Hybrid Rice
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作者 Enguo Wang Weiming Liu Liequan Zhong 《Plant Diseases and Pests》 CAS 2021年第5期7-11,共5页
[Objective]The paper was to study the relationship between rice leaf roller,rice planthopper and spider and their ecological regulation ability in the field.[Method]The population dynamics of rice leaf roller,rice pla... [Objective]The paper was to study the relationship between rice leaf roller,rice planthopper and spider and their ecological regulation ability in the field.[Method]The population dynamics of rice leaf roller,rice planthopper and spider at three different sowing and transplanting periods of single cropping hybrid rice in the treatment area with combination of 3 drug formulations and untreated area were monitored.[Result]There were significant or extremely significant positive correlations among rice leaf roller,rice planthopper and spider in single cropping hybrid rice.However,with the delay of planting and transplanting period,the population fluctuation crest of rice leaf roller and rice planthopper decreased,but the intensity increased with the advance of time,and the natural ecological regulation ability was relatively improved.[Conclusion]The sowing period of single cropping hybrid rice is delayed 5-10 d compared with conventional rice,that is,sowing in late May and early June.The seedling age of 20-30 d is beneficial not only to reduce the initial population quantity of rice leaf roller and rice planthopper in the field,but also to increase the population quantity of spiders. 展开更多
关键词 Single cropping hybrid rice Rice leaf roller Rice planthopper SPIDER Sowing period Fluctuation
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Molecular characterization of bla_(NDM)-harboring plasmids reveal its rapid adaptation and evolution in the Enterobacteriaceae
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作者 Yiming Li Yuying Yang +3 位作者 Yifei Wang Timothy RWalsh Shaolin Wang Chang Cai 《One Health Advances》 2023年第1期26-40,共15页
Carbapenem is one of the few available drugs to treat multidrug-resistance Gram-negative bacteria infections.Recently,the plasmid-mediated spread of the carbapenem resistance gene bla_(NDM) poses a significant threat ... Carbapenem is one of the few available drugs to treat multidrug-resistance Gram-negative bacteria infections.Recently,the plasmid-mediated spread of the carbapenem resistance gene bla_(NDM) poses a significant threat to public health,requiring global monitoring and surveillance.Here,we used both short-read(n=2461)and long-read(n=546)sequencing data to characterize the global distribution of bla_(NDM).We analyzed the replicon type of bla_(NDM)-positive plasmids and found that the dominant plasmid type was different in diverse geographical locations.Although bla_(NDM)gene has been transferred across diverse countries,its genetic backgrounds are highly conserved,and the mobile genetic element ISAba125,IS5,and IS26 may play an important role in the mobilization of bla_(NDM).A significant association was observed between host origin and gene presence/deletion variation on IncX3 plasmid,which may be a key factor in the bacterial adaption to diverse hosts.In this study,we analyzed the diversity,distribution and transmission of bla_(NDM)-positive plasmids from a global perspective,and emphasize the importance of plasmid analysis for understanding the evolution and adaptation of bla_(NDM)-positive plasmids and their co-evolution with bacterial genomes(resistome). 展开更多
关键词 bla_(NDM) Plasmids Bacterial genomics Carbapenem resistance
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Elucidation and engineering mitochondrial respiratory-related genes for improving bioethanol production at high temperature in Saccharomyces cerevisiae
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作者 Xianni Qi Zhen Wang +3 位作者 Yuping Lin Yufeng Guo Zongjie Dai Qinhong Wang 《Engineering Microbiology》 2024年第2期12-23,共12页
Industrial manufacturing of bioproducts,especially bioethanol,can benefit from high-temperature fermentation,which requires the use of thermotolerant yeast strains.Mitochondrial activity in yeast is closely related to... Industrial manufacturing of bioproducts,especially bioethanol,can benefit from high-temperature fermentation,which requires the use of thermotolerant yeast strains.Mitochondrial activity in yeast is closely related to its over-all metabolism.However,the mitochondrial respiratory changes in response to adaptive thermotolerance are still poorly understood and have been rarely utilized for developing thermotolerant yeast cell factories.Here,adap-tive evolution and transcriptional sequencing,as well as whole-genome-level gene knockout,were used to obtain a thermotolerant strain of Saccharomyces cerevisiae.Furthermore,thermotolerance and bioethanol production efficiency of the engineered strain were examined.Physiological evaluation showed the boosted fermentation ca-pacity and suppressed mitochondrial respiratory activity in the thermotolerant strain.The improved fermentation produced an increased supply of adenosine triphosphate required for more active energy-consuming pathways.Transcriptome analysis revealed significant changes in the expression of the genes involved in the mitochondrial respiratory chain.Evaluation of mitochondria-associated gene knockout confirmed that ADK1,DOC1,or MET7 were the key factors for the adaptive evolution of thermotolerance in the engineered yeast strain.Intriguingly,overexpression of DOC1 with TEF1 promoter regulation led to a 10.1%increase in ethanol production at 42℃.The relationships between thermotolerance,mitochondrial activity,and respiration were explored,and a ther-motolerant yeast strain was developed by altering the expression of mitochondrial respiration-related genes.This study provides a better understanding on the physiological mechanism of adaptive evolution of thermotolerance in yeast. 展开更多
关键词 Saccharomyces cerevisiae Adaptive evolution Transcriptional sequencing Mitochondrial respiratory THERMOTOLERANCE
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The preparation,characterization, and catalytic performance of porous fibrous LaFeO3 perovskite made from a sunflower seed shell template 被引量:1
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作者 Zhifei Wu Li Wang +3 位作者 Yixiao Hu Hui Han Xing Li Ying Wang 《Frontiers of Chemical Science and Engineering》 SCIE EI CAS CSCD 2020年第6期967-975,共9页
LaFe03 perovskite with a porous fibrous structure was successfully synthesized using a sunflower seed shell as a template.To investigate the effects of this template,a sample was prepared without a template via the sa... LaFe03 perovskite with a porous fibrous structure was successfully synthesized using a sunflower seed shell as a template.To investigate the effects of this template,a sample was prepared without a template via the same procedure.Through various characterization techniques,such as X-ray diffraction,scanning electron microscopy,Fourier transform infrared spectroscopy,N2 adsorption-desorption analysis,X-ray photoelectron spectroscopy,oxygen temperature programed desorption,and hydrogen temperature programed reduction,the physiochemical properties of the samples were investigated.The results showed that the sample made with a template had a larger surface area and a larger amount of adsorbed oxygen,which further illustrated that the sunflower seed shell template had a significant impact on the physiochemical properties of the samples.Furthermore,we explored the catalytic activity for nitric oxide(NO)oxidation,and studied the factors affecting it,which highlighted its potential application in automobile exhausts. 展开更多
关键词 NO oxidation porous fibrous LaFeO3 sunflower seed shell
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