The environment-friendly glasses which integrate function and structure were introduced, among these glasses can save energy very efficiently due to its low infrared emissivity. The fundamental principle of the low em...The environment-friendly glasses which integrate function and structure were introduced, among these glasses can save energy very efficiently due to its low infrared emissivity. The fundamental principle of the low emissivity glass and the research progress of this kind glass were analyzed. Meanwhile, high performance and low applied development trend of emissivity glass were reviewed.展开更多
Through the analysis of the geographical features of the Shangri-La,the eco-tourism and environment-friendly land use patterns were proposed. And the significances of the mode of economic development in Shangri-La wer...Through the analysis of the geographical features of the Shangri-La,the eco-tourism and environment-friendly land use patterns were proposed. And the significances of the mode of economic development in Shangri-La were analyzed.展开更多
From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept ...From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept and connotation of environment-friendly utilization of land resources,we build the basic framework for the evaluation of environment-friendly utilization of land resources from environment,economy and society,and propose the evaluation methods combining composite index method and multi-angle single indicator evaluation method. At the same time,we establish the grading system and grading standards for environment-friendly county land use,to promote the qualitative and quantitative evaluation of environment-friendly county land use.展开更多
By selecting the data from 1989 to 2009 in China, we conduct regression analysis on the total output value of agriculture, the usage amount of chemical fertilizer, total power of agricultural machinery, effective irri...By selecting the data from 1989 to 2009 in China, we conduct regression analysis on the total output value of agriculture, the usage amount of chemical fertilizer, total power of agricultural machinery, effective irrigation area, and the damage area. The results show that the usage amount of chemical fertilizer and the damage area, the great obstacle to the construction of resource-saving and environment-friendly agriculture, have significant impact on the output value of agriculture; total power of agricultural machinery and effective irrigation area have insignificant impact on the output value of agriculture. Based on these, the suggestions for promoting the development of resource-saving and environment-friendly agriculture are put forward as follows: transform agricultural production mode, and optimize the industrial structure of agriculture; promote scientific use of chemical fertilizer, and promote the ability of agriculture to resist risks; promote the development of biogas in rural areas, and carry out the comprehensive use of biological material resources in rural areas.展开更多
The results of using microorganism to clean appliances and buildings show that it was a highly efficient method.The researcher found that microorganism was more human and animal friendly than chemicals,and was good fo...The results of using microorganism to clean appliances and buildings show that it was a highly efficient method.The researcher found that microorganism was more human and animal friendly than chemicals,and was good for environment as well.Ying Charoen Market was constructed in the year 1955,so it has existed for more than 63 years.The market has all kinds of food and has been a food center for people living in Northern Bangkok for a long time.Thus,it is not surprising that the market is also the center of people,garbage,and pollution,which produce negative effects on the environment.The research population consists of stakeholders(owner,managers,employees,suppliers,vendors,and consumers)in Ying Charoen Market.In details,there are 1,512 vendors in the market,which can be classified into 15 groups according to the main types of products.This study used mixed methods of methodology,in particular,exploratory sequential method.It was a qualitative research and an action participatory research.The objectives were to study the current condition,context,factors,and problems of Ying Charoen Market that are related with the environment,and to establish strategies for developing Ying Charoen Market to become environment-friendly.The data were analyzed by content analysis.The results expected from this research is to have a guidance for producing the strategy of environment management,which will lead to the participation of related people,lower cost in the long term,and good health for employees,vendors,and consumers in the market,as well as positive effects on the environment in general.In addition,the research is piloting the service of how to operate business in environment-friendly way.It is also a model for other markets or enterprises all over the country,presenting them how to manage their business to become sustainable and environment friendly.展开更多
Recycling of junks is positive for the environmental protection.Along with the proposal of three-child policy,purchase volume of milk powder surely will experience a drastic growth,and the milk powder spoon as an affi...Recycling of junks is positive for the environmental protection.Along with the proposal of three-child policy,purchase volume of milk powder surely will experience a drastic growth,and the milk powder spoon as an affiliated product will win the attention of parents.Against the background of consumption upgrading,consumers have had higher requirements on the humanization and safety design of products.Most of milk powder spoons on the market are plastic,and the disposal of waste milk powder spoon has gradually become a burden for the environment.Based on the environment-friendly and developmental concept,and also the characteristics of infant development,this paper proposed the“in-one”design,applied color and tactile designs into the milk powder design,chose food grade silicone to make the milk powder spoon not only a spoon but also a baby teether toy,so as to expand the service life and functions of the product,meet the requirements of saving energy,protecting environment and developing circular economy,which also to some extent reduces the burden on environment brought by plastics,improves the efficiency of junk recycling,and meet the individualized needs of consumers.展开更多
On January 7-9, 2008, the feasibility research reporton the IGCC demonstration project of 4×200 MW inTaiyangzhou, Dongguan passed examination. This projectmay start within the year and is scheduled to put intoope...On January 7-9, 2008, the feasibility research reporton the IGCC demonstration project of 4×200 MW inTaiyangzhou, Dongguan passed examination. This projectmay start within the year and is scheduled to put intooperation in 2011. It will alleviate Dongguan City展开更多
The research elaborated the internal connections between the construction of ecological civilization and 'Resource-conserving and Environment-friendly Society', introduced the practice and achievements of prom...The research elaborated the internal connections between the construction of ecological civilization and 'Resource-conserving and Environment-friendly Society', introduced the practice and achievements of promoting the construction of Ecological Civilization in the National Synthetically Reform Pilot Zone of the 'Resource-conserving and Environment-friendly Society' in Chang-Zhu-Tan(CZ-T) City Cluster, which is focusing on the establishment of standard system, the promotion of reform in ten key areas, the construction of ten key environmental projects, and the promotion of ten low-carbon clean technologies. Based on this, the research pointed out structural and institutional obstacles and problems in further promoting the construction of 'Resource-conserving and Environment-friendly Society' and Ecological Civilization. Finally, focusing on reform and innovation, the research provided suggestions to deepen the reform of the construction of 'Resource-conserving and Environment-friendly Society' and Ecological Civilization in four aspects, such as dividend of institution, dividend of nomocracy, dividend of development, and dividend of market.展开更多
Environment-friendly pigments based on AFeO_(3)(A=La,Pr,Nd,Sm,Gd,Tb,Y or Yb)with high nearinfrared(NIR)reflectance were synthesised by a coprecipitation method at 1200℃.The Rietveld refinement analysis showed single-...Environment-friendly pigments based on AFeO_(3)(A=La,Pr,Nd,Sm,Gd,Tb,Y or Yb)with high nearinfrared(NIR)reflectance were synthesised by a coprecipitation method at 1200℃.The Rietveld refinement analysis showed single-phase orthorhombic perovskite for all compositions.All pigments,which showed reddish hues,offered good colour stability after mixing these pigments in powder form with siloxane transparent paint and two different glazes.The powderepaint mixtures produced with GdFeO_(3),TbFeO_(3) and YFeO_(3) pigments have the highest NIR solar reflectance,reaching values of R=50%.The temperature shielding studies conducted using TbFeO_(3) pigmentepaint mixture for a roof coating yielded a reduction of 3.2℃ in comparison to a commercial pigment.Moreover,the glazes that were pigmented using GdFeO_(3),TbFeO_(3) and YFeO_(3) compositions also presented the most intense reddish colours.A study of the thermal and chemical stability of the pigment with the highest NIR solar reflectance showed good stability in both cases.The reddish pigments that were prepared can therefore be good candidates for use in different applications such as cool pigments or pigments for ceramic glazes at high temperatures.展开更多
This paper aims to estimate segments of latent variables associated with mode choice. The estimates of latent segmentation is obtained through Structural Equation Modelling (SEM) approach. The model is used to identif...This paper aims to estimate segments of latent variables associated with mode choice. The estimates of latent segmentation is obtained through Structural Equation Modelling (SEM) approach. The model is used to identify segments of homogeneous latent variables for attitude towards choice of feeder modes. The Scholars from different nations have contributed greatly in identifying conventional factors affecting the mode choice behavior. Apparently, very few studies have focused on analyzing latent variables affecting the choice of a mode. Specifically, feeder modes, which are likely to increase the mode shift to the public transport mode through improved door- bus stop connectivity. Thus, this study was carried out with an aim to identify the effect of latent variables on the mode choice behavior of the riders for proposed feeder modes. The proposed modes are Environment-Friendly for added benefits of pollution control. The selected study area is the city of Vadodara, in Gujarat state of India. For this, 41 latent variables were identified from the literature review. Data was collected through a predetermined and framed questionnaire. The latent variables with their indicators were checked by preliminary Confirmatory Factor Analysis (CFA), using SPSS software. Six hypotheses were framed to determine the interrelationship between the latent variables through Structural Equation Modelling (SEM) using the Analysis of Moment Structures (AMOS) software. Based on the outliers, communalities extraction and, correlation criteria, the indicators were reduced to 26. The results of the segmental analysis model reveal that the four framed latent variables positively affect the mode choice behavior of a rider. Hence, inculcating these latent variables while proposing an Environment-Friendly feeder mode may result in increased mode choice. Which can be predicted through choice models as a future scope.展开更多
Marine biofouling seriously affects human marine exploitation and transportation activities,to which marine antifouling(AF)coatings are considered to be the most cost-effective solution.Since the mid-20th century,huma...Marine biofouling seriously affects human marine exploitation and transportation activities,to which marine antifouling(AF)coatings are considered to be the most cost-effective solution.Since the mid-20th century,human beings have dedicated their efforts on developing AF coatings with long cycle and high performance,leading to a large number of non-target organisms?distortion,death and marine environmental pollution.Polydimethylsiloxane(PDMS),is considered as one of the representative environment-friendly AF materials thanks to its non-toxic,hydrophobic,low surface energy and AF properties.However,PDMS AF coatings are prone to mechanical damage,weak adhesion strength to substrate,and poor static AF effect,which seriously restrict their use in the ocean.The rapid development of various nanomaterials provides an opportunity to enhance and improve the mechanical properties and antifouling properties of PDMS coating by embedding nanomaterials.Based on our research background and the problems faced in our laboratory,this article presents an overview of the current progress in the fields of PDMS composite coatings enhanced by different nanomaterials,with the discussion focused on the advantages and main bottlenecks currently encountered in this field.Finally,we propose an outlook,hoping to provide fundamental guidance for the development of marine AF field.展开更多
A novel biodegradable material,Se@PLA,was designed and prepared via the selenization reaction of polylactic acid using NaHSe as the selenization reagent.This material shows excellent antibacterial activity(EC_(5)0=13...A novel biodegradable material,Se@PLA,was designed and prepared via the selenization reaction of polylactic acid using NaHSe as the selenization reagent.This material shows excellent antibacterial activity(EC_(5)0=13.38μg/mL)against Xanthomonas oryzae pv.Oryzae,which is a highly destructive pathogen responsible for rice bacterial blight.Se@PLA induces oxidative stress in bacteria,leading to the rupture of bacterial cell membranes and eventual death.Moreover,Se@PLA can significantly inhibit the motility of bacteria and is low toxic to soil and aquatic organisms.This work provides an effective method for preventing and controlling rice bacterial blight,and reveals the great potential of using Se@PLA as an alternative next generation plant bactericide.展开更多
As one type of environment-friendly polymer, biodegradable starch-based materials have been widely explored in recent years and considered one of the most promising plastics in the future. Currently, either synthetic ...As one type of environment-friendly polymer, biodegradable starch-based materials have been widely explored in recent years and considered one of the most promising plastics in the future. Currently, either synthetic biodegradable aliphatic polyesters or certain natural polymers are usually blended with thermoplastic starch to enhance hydrophobicity and service performance of starch-based materials. The main deficiency lies in the low compatibility between starch and polyester phases. Therefore amphiphilic compatibilizers, such as hydroxyl functioned polyesters, need to be developed in the future. Moreover, multi-phase blending systems including two or more polyester phases are also supposed to be designed.展开更多
The development and utilization of new environmental film is an important measure to tackle the residual film pollution, protect the ecological environment and promote the sustainable development of agriculture. The t...The development and utilization of new environmental film is an important measure to tackle the residual film pollution, protect the ecological environment and promote the sustainable development of agriculture. The types of new environmental film and their development status were reviewed from the aspects of photodegradable film, biodegradable film, photo-biodegradable film, liquid film, paper film and bast fiber film. In terms of the experimental research status of environmental films in China, analysis and comparisons were made from three aspects including the different types, the same type and imported environment-friendly film. Suggestions were proposed for the research and development prospect of environmental film.展开更多
Lead(Pb)-free Tin(Sn)-based perovskite solar cells(PSCs)have been favored by the community due to their low toxicity,preferable bandgaps,and great potential to achieve high power conversion efficiencies(PCEs).Interfac...Lead(Pb)-free Tin(Sn)-based perovskite solar cells(PSCs)have been favored by the community due to their low toxicity,preferable bandgaps,and great potential to achieve high power conversion efficiencies(PCEs).Interfaces engineering plays important roles in developing highly efficient Sn-based PSCs via passivation of trap defects,alignment of energy levels,and incorporation of low-dimensional Sn-based perovskites.In this review,we summarize the development of Pb-free Sn-based perovskites and their applications in devices,especially the strategies of improving the interfaces.We also provide perspectives for future research.Our aim is to help the development of new and advanced approaches to achieving high-performance environment-friendly Pb-free Sn-based PSCs.展开更多
To utilize industrial residue as building materials is not only the demand for modern concrete technology but also the requirements for maintaining ecological balance and sustainable development. CRM, a new high-effec...To utilize industrial residue as building materials is not only the demand for modern concrete technology but also the requirements for maintaining ecological balance and sustainable development. CRM, a new high-effective mineral admixture for concrete, is developed recently from industrial residue, and the systematical studies on CRM’s various properties have been performed. The laboratory tests, industrial tests and field applications have shown that CRM can be used as inorganic cementitious material to replace cement, and is also an excellent supplementary cementitious material tor high performance concrete (HPC).展开更多
The Mediterranean fruit fly (Medfly), Ceratitis capitata (Wiedemann) is one of the major pests of fruit crops in Argentina and it is a phytosanitary barrier to the export of fresh fruits. In the Province of San Juan, ...The Mediterranean fruit fly (Medfly), Ceratitis capitata (Wiedemann) is one of the major pests of fruit crops in Argentina and it is a phytosanitary barrier to the export of fresh fruits. In the Province of San Juan, located in the central-eastern region of Argentina known as Cuyo, control strategies against Medfly in fruit-producing irrigated-valleys have been implemented by the National Fruit Fly Control and Eradication Program (ProCEM) jointly with the provincial government and the producers. This program uses an area-wide integrated pest management approach that includes the use of environment-friendly strategies to suppress or eradicate Medfly, such as the use of the sterile insect technique and the application of new-generation bait sprays, and more recently the release of the Indo-Pacific parasitoid Diachasmimorpha longicaudata (Ashmead). This exotic larval-prepupal endoparasitoid is being mass-reared on larvae of Vienna 8 TSL C. capitata strain at the BioPlanta San Juan facility. In this respect, the objective of this study was to assess the effectiveness of laboratory-reared D. longicaudata females in order to find and successfully parasitize Medfly larvae in different host fruit species once released under semi-arid environmental conditions in ecologically isolated fruit-growing valleys of San Juan. Ground releases were used to disperse parasitoids in 6 fruit-producing valleys. In total, 40,000 adult parasitoids were released at places with various Medfly host plants bearing fruits and in which no insecticides were regularly applied, such as backyards and small orchards. 119 D. longicaudata adults were recovered from 6 Medfly-infested fruit species that were collected in 5 release sites (Pocito, Zonda, Santa Lucía, Caucete, and Rivadavia). The highest number of parasitoids was recovered from fig, followed by grape, rose, orange, tangerine, and persimmon. Data provided from this study open up the possibility of implementing a parasitoid mass-release program in San Juan.展开更多
This research was aimed at finding out the efficiency of the portable electronic vulcanizer. The old vulcanizing equipment was upgraded to save time, investment, manpower and to eliminate the problem of gas emission i...This research was aimed at finding out the efficiency of the portable electronic vulcanizer. The old vulcanizing equipment was upgraded to save time, investment, manpower and to eliminate the problem of gas emission in vulcanization. The study also determined the accurate temperature setting and duration of vulcanizing process using electronic vulcanizer which eliminated the problem of gas emission produced by the conventional (gas fired) vulcanizer of about 2.772 kg of carbon dioxide for 1 liter of diesel fuel and/or 2.331 kg of carbon dioxide for 1 liter of petrol into the atmosphere. In constructing this vulcanizer, a letter G body configuration made of GI pipe with 31.5 cm long lag bolt with some electronic parts were installed, like the analog temperature gauge, digital timer, relay, LED, buzzer, switch, and heating element. Specifically, the product is divided into three components: base or body, control panel board and the heating unit. The effectiveness level of the equipment was tested utilizing five different temperatures at a constant and variable time. For Class A gum, the best temperature which bonded the gum exactly to the rubber tire was 60℃ in 1 minute while Class B gum was bonded at 60℃ in 2 minutes. The rate of energy consumed by the electronic vulcanizer for Class A gum was Php 0.0757 with an efficiency of 85.22% and for Class B gum was Php 0.15 with an efficiency of 85.22% and for conventional vulcanizer for Class A gum was Php 1.08 with an efficiency of 43.38% and for Class B gum was Php 1.52, with an efficiency of 78.08%. The study revealed that more tires could be vulcanized in a short period of time, therefore providing greater income over time. It is also environment-friendly since it does not emit carbon dioxide as compared to the conventional vulcanizing.展开更多
The community is both a learning and living environment that significantly influences the physical and mental development of the children,as well as an important arena for realizing children’s rights.However,the deve...The community is both a learning and living environment that significantly influences the physical and mental development of the children,as well as an important arena for realizing children’s rights.However,the development of urban communities in China is not particularly child-friendly,causing children to abandon or misuse the communal environment.Creating a child-friendly environment in urban communities requires the adoption of three basic approaches,i.e.a shift from the"adult’s perspective"to the"child’s perspective",a shift from a simplistic focus on the"hardware"of the environment to a dual focus that balances both"hardware"and"software",as well as a shift from providing an environment to man aging and guiding the use of the environment.Specific technical indicators for developing child-friendly environments in urban communities,which based on these three approaches,should be designed.展开更多
基金the Doctoral Fund of Ministry of Education of China (20060497003)Wuhan Excellent Young Scientis Fund
文摘The environment-friendly glasses which integrate function and structure were introduced, among these glasses can save energy very efficiently due to its low infrared emissivity. The fundamental principle of the low emissivity glass and the research progress of this kind glass were analyzed. Meanwhile, high performance and low applied development trend of emissivity glass were reviewed.
基金Supported by Special Program of Social Career Development of Science and Technology Project in Yunnan Province(2010CA010)
文摘Through the analysis of the geographical features of the Shangri-La,the eco-tourism and environment-friendly land use patterns were proposed. And the significances of the mode of economic development in Shangri-La were analyzed.
基金Supported by Agricultural Science and Technology Extension Program
文摘From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept and connotation of environment-friendly utilization of land resources,we build the basic framework for the evaluation of environment-friendly utilization of land resources from environment,economy and society,and propose the evaluation methods combining composite index method and multi-angle single indicator evaluation method. At the same time,we establish the grading system and grading standards for environment-friendly county land use,to promote the qualitative and quantitative evaluation of environment-friendly county land use.
基金Supported by Postgraduate Innovation Foundation in Guizhou University (2011041)
文摘By selecting the data from 1989 to 2009 in China, we conduct regression analysis on the total output value of agriculture, the usage amount of chemical fertilizer, total power of agricultural machinery, effective irrigation area, and the damage area. The results show that the usage amount of chemical fertilizer and the damage area, the great obstacle to the construction of resource-saving and environment-friendly agriculture, have significant impact on the output value of agriculture; total power of agricultural machinery and effective irrigation area have insignificant impact on the output value of agriculture. Based on these, the suggestions for promoting the development of resource-saving and environment-friendly agriculture are put forward as follows: transform agricultural production mode, and optimize the industrial structure of agriculture; promote scientific use of chemical fertilizer, and promote the ability of agriculture to resist risks; promote the development of biogas in rural areas, and carry out the comprehensive use of biological material resources in rural areas.
文摘The results of using microorganism to clean appliances and buildings show that it was a highly efficient method.The researcher found that microorganism was more human and animal friendly than chemicals,and was good for environment as well.Ying Charoen Market was constructed in the year 1955,so it has existed for more than 63 years.The market has all kinds of food and has been a food center for people living in Northern Bangkok for a long time.Thus,it is not surprising that the market is also the center of people,garbage,and pollution,which produce negative effects on the environment.The research population consists of stakeholders(owner,managers,employees,suppliers,vendors,and consumers)in Ying Charoen Market.In details,there are 1,512 vendors in the market,which can be classified into 15 groups according to the main types of products.This study used mixed methods of methodology,in particular,exploratory sequential method.It was a qualitative research and an action participatory research.The objectives were to study the current condition,context,factors,and problems of Ying Charoen Market that are related with the environment,and to establish strategies for developing Ying Charoen Market to become environment-friendly.The data were analyzed by content analysis.The results expected from this research is to have a guidance for producing the strategy of environment management,which will lead to the participation of related people,lower cost in the long term,and good health for employees,vendors,and consumers in the market,as well as positive effects on the environment in general.In addition,the research is piloting the service of how to operate business in environment-friendly way.It is also a model for other markets or enterprises all over the country,presenting them how to manage their business to become sustainable and environment friendly.
基金Sponsored by 2022 Teaching Reform Project of Lingnan Normal University(000302201830)2022 Model Course of Lingnan Normal University(LingShiJiaoWu(2014)No.125)2023 Undergraduate Students’Innovation and entrepreneurship Planning of Lingnan Normal University(X202310579049X).
文摘Recycling of junks is positive for the environmental protection.Along with the proposal of three-child policy,purchase volume of milk powder surely will experience a drastic growth,and the milk powder spoon as an affiliated product will win the attention of parents.Against the background of consumption upgrading,consumers have had higher requirements on the humanization and safety design of products.Most of milk powder spoons on the market are plastic,and the disposal of waste milk powder spoon has gradually become a burden for the environment.Based on the environment-friendly and developmental concept,and also the characteristics of infant development,this paper proposed the“in-one”design,applied color and tactile designs into the milk powder design,chose food grade silicone to make the milk powder spoon not only a spoon but also a baby teether toy,so as to expand the service life and functions of the product,meet the requirements of saving energy,protecting environment and developing circular economy,which also to some extent reduces the burden on environment brought by plastics,improves the efficiency of junk recycling,and meet the individualized needs of consumers.
文摘On January 7-9, 2008, the feasibility research reporton the IGCC demonstration project of 4×200 MW inTaiyangzhou, Dongguan passed examination. This projectmay start within the year and is scheduled to put intooperation in 2011. It will alleviate Dongguan City
基金supported by National Innovative Research Group of National Natural Science Fund Committee Science Foundation Programs(71221061)Key Project of Philosophy and Social Sciences Research of Ministry of Education(13JZD0016)
文摘The research elaborated the internal connections between the construction of ecological civilization and 'Resource-conserving and Environment-friendly Society', introduced the practice and achievements of promoting the construction of Ecological Civilization in the National Synthetically Reform Pilot Zone of the 'Resource-conserving and Environment-friendly Society' in Chang-Zhu-Tan(CZ-T) City Cluster, which is focusing on the establishment of standard system, the promotion of reform in ten key areas, the construction of ten key environmental projects, and the promotion of ten low-carbon clean technologies. Based on this, the research pointed out structural and institutional obstacles and problems in further promoting the construction of 'Resource-conserving and Environment-friendly Society' and Ecological Civilization. Finally, focusing on reform and innovation, the research provided suggestions to deepen the reform of the construction of 'Resource-conserving and Environment-friendly Society' and Ecological Civilization in four aspects, such as dividend of institution, dividend of nomocracy, dividend of development, and dividend of market.
基金Authors thanks the Universitat Jaume I[UJI-B2019-41]the Ministerio de Economía,Industria y Competitividad[MAT2016-80410-P]for financial support.
文摘Environment-friendly pigments based on AFeO_(3)(A=La,Pr,Nd,Sm,Gd,Tb,Y or Yb)with high nearinfrared(NIR)reflectance were synthesised by a coprecipitation method at 1200℃.The Rietveld refinement analysis showed single-phase orthorhombic perovskite for all compositions.All pigments,which showed reddish hues,offered good colour stability after mixing these pigments in powder form with siloxane transparent paint and two different glazes.The powderepaint mixtures produced with GdFeO_(3),TbFeO_(3) and YFeO_(3) pigments have the highest NIR solar reflectance,reaching values of R=50%.The temperature shielding studies conducted using TbFeO_(3) pigmentepaint mixture for a roof coating yielded a reduction of 3.2℃ in comparison to a commercial pigment.Moreover,the glazes that were pigmented using GdFeO_(3),TbFeO_(3) and YFeO_(3) compositions also presented the most intense reddish colours.A study of the thermal and chemical stability of the pigment with the highest NIR solar reflectance showed good stability in both cases.The reddish pigments that were prepared can therefore be good candidates for use in different applications such as cool pigments or pigments for ceramic glazes at high temperatures.
文摘This paper aims to estimate segments of latent variables associated with mode choice. The estimates of latent segmentation is obtained through Structural Equation Modelling (SEM) approach. The model is used to identify segments of homogeneous latent variables for attitude towards choice of feeder modes. The Scholars from different nations have contributed greatly in identifying conventional factors affecting the mode choice behavior. Apparently, very few studies have focused on analyzing latent variables affecting the choice of a mode. Specifically, feeder modes, which are likely to increase the mode shift to the public transport mode through improved door- bus stop connectivity. Thus, this study was carried out with an aim to identify the effect of latent variables on the mode choice behavior of the riders for proposed feeder modes. The proposed modes are Environment-Friendly for added benefits of pollution control. The selected study area is the city of Vadodara, in Gujarat state of India. For this, 41 latent variables were identified from the literature review. Data was collected through a predetermined and framed questionnaire. The latent variables with their indicators were checked by preliminary Confirmatory Factor Analysis (CFA), using SPSS software. Six hypotheses were framed to determine the interrelationship between the latent variables through Structural Equation Modelling (SEM) using the Analysis of Moment Structures (AMOS) software. Based on the outliers, communalities extraction and, correlation criteria, the indicators were reduced to 26. The results of the segmental analysis model reveal that the four framed latent variables positively affect the mode choice behavior of a rider. Hence, inculcating these latent variables while proposing an Environment-Friendly feeder mode may result in increased mode choice. Which can be predicted through choice models as a future scope.
基金financially supported by National Natural Science Foundation of China(Grant No.52073071,51803041)Natural Science Funding for Excellent Young Scholar of Heilongjiang Province(YQ2022E021,L.Wang)+2 种基金the Fundamental Research Funds for the Central Universities(HIT.DZJJ.2023056)the Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute(No.JS220407)the financial support from the Spanish Ministry of Economy and the Canary Islands program Vieray Clavijo Senior(Ref.2023/00001156)。
文摘Marine biofouling seriously affects human marine exploitation and transportation activities,to which marine antifouling(AF)coatings are considered to be the most cost-effective solution.Since the mid-20th century,human beings have dedicated their efforts on developing AF coatings with long cycle and high performance,leading to a large number of non-target organisms?distortion,death and marine environmental pollution.Polydimethylsiloxane(PDMS),is considered as one of the representative environment-friendly AF materials thanks to its non-toxic,hydrophobic,low surface energy and AF properties.However,PDMS AF coatings are prone to mechanical damage,weak adhesion strength to substrate,and poor static AF effect,which seriously restrict their use in the ocean.The rapid development of various nanomaterials provides an opportunity to enhance and improve the mechanical properties and antifouling properties of PDMS coating by embedding nanomaterials.Based on our research background and the problems faced in our laboratory,this article presents an overview of the current progress in the fields of PDMS composite coatings enhanced by different nanomaterials,with the discussion focused on the advantages and main bottlenecks currently encountered in this field.Finally,we propose an outlook,hoping to provide fundamental guidance for the development of marine AF field.
基金National Key Research and Development Program of China(No.2018YFD0200100)the fund of the joint-laboratory of Shanghai Dingya Pharmaceutical Chemical Technology Co.,Ltd.with Yangzhou University(2022–2027)+1 种基金the Yangzhou City and Yangzhou University Cooperation Program(No.YZ2023209)the Priority Academic Program Development of Jiangsu Higher Education Institutions for support。
文摘A novel biodegradable material,Se@PLA,was designed and prepared via the selenization reaction of polylactic acid using NaHSe as the selenization reagent.This material shows excellent antibacterial activity(EC_(5)0=13.38μg/mL)against Xanthomonas oryzae pv.Oryzae,which is a highly destructive pathogen responsible for rice bacterial blight.Se@PLA induces oxidative stress in bacteria,leading to the rupture of bacterial cell membranes and eventual death.Moreover,Se@PLA can significantly inhibit the motility of bacteria and is low toxic to soil and aquatic organisms.This work provides an effective method for preventing and controlling rice bacterial blight,and reveals the great potential of using Se@PLA as an alternative next generation plant bactericide.
文摘As one type of environment-friendly polymer, biodegradable starch-based materials have been widely explored in recent years and considered one of the most promising plastics in the future. Currently, either synthetic biodegradable aliphatic polyesters or certain natural polymers are usually blended with thermoplastic starch to enhance hydrophobicity and service performance of starch-based materials. The main deficiency lies in the low compatibility between starch and polyester phases. Therefore amphiphilic compatibilizers, such as hydroxyl functioned polyesters, need to be developed in the future. Moreover, multi-phase blending systems including two or more polyester phases are also supposed to be designed.
基金Supported by the Key Programs for Science and Technology Development of Shanxi Province(20140311007-4)
文摘The development and utilization of new environmental film is an important measure to tackle the residual film pollution, protect the ecological environment and promote the sustainable development of agriculture. The types of new environmental film and their development status were reviewed from the aspects of photodegradable film, biodegradable film, photo-biodegradable film, liquid film, paper film and bast fiber film. In terms of the experimental research status of environmental films in China, analysis and comparisons were made from three aspects including the different types, the same type and imported environment-friendly film. Suggestions were proposed for the research and development prospect of environmental film.
基金supported by the Science and Technology Program of Sichuan Province(Nos.2017GZ0052,2020YFH0079,and 2020JDJQ0030)National Energy Novel Materials Center Project(No.NENMC-I-1701)+1 种基金the Fundamental Research Funds for the Central Universities(Nos.YJ201722,YJ201955)support by National Natural Science Foundation of China(Grant No.U1804132)。
文摘Lead(Pb)-free Tin(Sn)-based perovskite solar cells(PSCs)have been favored by the community due to their low toxicity,preferable bandgaps,and great potential to achieve high power conversion efficiencies(PCEs).Interfaces engineering plays important roles in developing highly efficient Sn-based PSCs via passivation of trap defects,alignment of energy levels,and incorporation of low-dimensional Sn-based perovskites.In this review,we summarize the development of Pb-free Sn-based perovskites and their applications in devices,especially the strategies of improving the interfaces.We also provide perspectives for future research.Our aim is to help the development of new and advanced approaches to achieving high-performance environment-friendly Pb-free Sn-based PSCs.
基金Funded by the Science and Technology Commission of Hainan (No. 98008)
文摘To utilize industrial residue as building materials is not only the demand for modern concrete technology but also the requirements for maintaining ecological balance and sustainable development. CRM, a new high-effective mineral admixture for concrete, is developed recently from industrial residue, and the systematical studies on CRM’s various properties have been performed. The laboratory tests, industrial tests and field applications have shown that CRM can be used as inorganic cementitious material to replace cement, and is also an excellent supplementary cementitious material tor high performance concrete (HPC).
文摘The Mediterranean fruit fly (Medfly), Ceratitis capitata (Wiedemann) is one of the major pests of fruit crops in Argentina and it is a phytosanitary barrier to the export of fresh fruits. In the Province of San Juan, located in the central-eastern region of Argentina known as Cuyo, control strategies against Medfly in fruit-producing irrigated-valleys have been implemented by the National Fruit Fly Control and Eradication Program (ProCEM) jointly with the provincial government and the producers. This program uses an area-wide integrated pest management approach that includes the use of environment-friendly strategies to suppress or eradicate Medfly, such as the use of the sterile insect technique and the application of new-generation bait sprays, and more recently the release of the Indo-Pacific parasitoid Diachasmimorpha longicaudata (Ashmead). This exotic larval-prepupal endoparasitoid is being mass-reared on larvae of Vienna 8 TSL C. capitata strain at the BioPlanta San Juan facility. In this respect, the objective of this study was to assess the effectiveness of laboratory-reared D. longicaudata females in order to find and successfully parasitize Medfly larvae in different host fruit species once released under semi-arid environmental conditions in ecologically isolated fruit-growing valleys of San Juan. Ground releases were used to disperse parasitoids in 6 fruit-producing valleys. In total, 40,000 adult parasitoids were released at places with various Medfly host plants bearing fruits and in which no insecticides were regularly applied, such as backyards and small orchards. 119 D. longicaudata adults were recovered from 6 Medfly-infested fruit species that were collected in 5 release sites (Pocito, Zonda, Santa Lucía, Caucete, and Rivadavia). The highest number of parasitoids was recovered from fig, followed by grape, rose, orange, tangerine, and persimmon. Data provided from this study open up the possibility of implementing a parasitoid mass-release program in San Juan.
文摘This research was aimed at finding out the efficiency of the portable electronic vulcanizer. The old vulcanizing equipment was upgraded to save time, investment, manpower and to eliminate the problem of gas emission in vulcanization. The study also determined the accurate temperature setting and duration of vulcanizing process using electronic vulcanizer which eliminated the problem of gas emission produced by the conventional (gas fired) vulcanizer of about 2.772 kg of carbon dioxide for 1 liter of diesel fuel and/or 2.331 kg of carbon dioxide for 1 liter of petrol into the atmosphere. In constructing this vulcanizer, a letter G body configuration made of GI pipe with 31.5 cm long lag bolt with some electronic parts were installed, like the analog temperature gauge, digital timer, relay, LED, buzzer, switch, and heating element. Specifically, the product is divided into three components: base or body, control panel board and the heating unit. The effectiveness level of the equipment was tested utilizing five different temperatures at a constant and variable time. For Class A gum, the best temperature which bonded the gum exactly to the rubber tire was 60℃ in 1 minute while Class B gum was bonded at 60℃ in 2 minutes. The rate of energy consumed by the electronic vulcanizer for Class A gum was Php 0.0757 with an efficiency of 85.22% and for Class B gum was Php 0.15 with an efficiency of 85.22% and for conventional vulcanizer for Class A gum was Php 1.08 with an efficiency of 43.38% and for Class B gum was Php 1.52, with an efficiency of 78.08%. The study revealed that more tires could be vulcanized in a short period of time, therefore providing greater income over time. It is also environment-friendly since it does not emit carbon dioxide as compared to the conventional vulcanizing.
文摘The community is both a learning and living environment that significantly influences the physical and mental development of the children,as well as an important arena for realizing children’s rights.However,the development of urban communities in China is not particularly child-friendly,causing children to abandon or misuse the communal environment.Creating a child-friendly environment in urban communities requires the adoption of three basic approaches,i.e.a shift from the"adult’s perspective"to the"child’s perspective",a shift from a simplistic focus on the"hardware"of the environment to a dual focus that balances both"hardware"and"software",as well as a shift from providing an environment to man aging and guiding the use of the environment.Specific technical indicators for developing child-friendly environments in urban communities,which based on these three approaches,should be designed.
