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Effects of red and blue LEDs on

Lili CHEN, Xuzhang XUE, Yadong YANG, Fei CHEN, Jie ZHAO, Xiquan WANG, Alam Tariful KHAN, Yuegao HU

《农业科学与工程前沿（英文）》 2018年 第5卷 第2期   页码 197-205 doi: 10.15302/J-FASE-2018224

摘要： The objectives of this study were to investigate the effects of red and blue LEDs on growth and microtuberization of potato ( ) single-node cuttings. Explants were incubated under 6 light treatments: 100% red LEDs (R), 75% red LEDs+ 25% blue LEDs (3RB), 50% red LEDs+ 50% blue LEDs (RB), 25% red LEDs+ 75% blue LEDs (R3B), 100% blue LEDs (B) and white LEDs (W). Most of the growth and physiological parameters were significantly higher in 3RB than W. Enhancement of leaf area and chlorophyll concentrations were obtained in B. Leaf stomata were elliptical with the lowest density in 3RB. However, those in W were round in shape, and those with the smallest size and the highest density were observed in R. Most of the characteristics of microtuberization were also improved in 3RB. The combined spectra of red and blue LEDs increased the number of large microtubers. The fresh weight of individual microtubers in R and W were increased, but not their number. These results suggest that, of the treatments assessed, 3RB is optimal for the growth of potato plantlets and the combination of red and blue LEDs is beneficial for microtuberization.

关键词： blue LED     microtuber     plant tissue culture     potato plantlets in vitro     red LED    

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Effects of rape straw and red mud on extractability and bioavailability of cadmium in a calcareous soil

Junxing YANG,Liqun WANG,Jumei LI,Dongpu WEI,Shibao CHEN,Qingjun GUO,Yibing MA

《环境科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 419-428 doi: 10.1007/s11783-014-0674-9

摘要： Screening of cost-effective soil amendments is important to develop “ ” remediation techniques for cadmium (Cd) contaminated soils. In this study, different soil amendments, including red mud, a by-product of the alumina industry, and acid-treated, nano-treated by nano-particle milling, nano and acid-treated red muds, zeolite, corn straw, and rape straw, were evaluated to immobilize Cd in two added levels (2 and 5 mg Cd·kg soil) in a calcareous soil by single and sequential extractions and by cucumber ( L.) pot experiments. Results indicated that cruciferous rape straw significantly decreased the concentrations of water soluble, extractable Cd in soils, and Cd in cucumber plants, and it was more effective than gramineous corn straw. Also, red mud generally decreased the extractability and bioavailability of Cd added to calcareous soils more effectively than zeolite. Furthermore, the efficiency of red mud could be increased by the treatment of nano-particle milling due to the increase in specific surface area of red mud. It is potential to use rape straw and red mud as soil amendments to develop a cost-effective and efficient “ ” remediation technology for Cd mildly contaminated calcareous soils.

关键词： red mud     rape straw     cadmium     immobilization     calcareous soil    

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我国LED照明产业高端制造装备自主发展战略

“新一代绿色照明高端制造装备自主发展战略研究”课题组

《中国工程科学》 2017年 第19卷 第3期   页码 142-148 doi: 10.15302/J-SSCAE-2017.03.020

摘要：

本文论述了我国发光二极管（LED）照明产业高端制造装备的已有成就和存在的问题，分析了我国LED照明产业高端制造装备所面临的机遇和挑战，提出我国LED照明产业高端制造装备自主发展的战略目标，并从形成LED照明产业生态的视角，研究成立国家制造装备创新平台、完善市场化运作机制、构建创新驱动发展的政策环境和公平竞争的市场环境等战略路径。

关键词： LED高端制造装备     产业共生     产业链协作关系     国家制造装备创新平台     LED战略性中心企业    

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Facile discovery of red blood cell deformation and compromised membrane/skeleton assembly in Prader–Willi

《医学前沿（英文）》 2022年 第16卷 第6期   页码 946-956 doi: 10.1007/s11684-022-0962-x

摘要： Prader–Willi syndrome (PWS) is a rare congenital disease with genetic alterations in chromosome 15. Although genetic disorders and DNA methylation abnormalities involved in PWS have been investigated to a significant degree, other anomalies such as those in erythrocytes may occur and these have not been clearly elucidated. In the present study, we uncovered slight anemia in children with PWS that was associated with increased red blood cell (RBC) distribution width (RDW) and contrarily reduced hematocrit (HCT) values. Intriguingly, the increased ratio in RDW to HCT allowed sufficient differentiation between the PWS patients from the healthy controls and, importantly, with individuals exhibiting conventional obesity. Further morphologic examinations revealed a significant deformity in erythrocytes and mild hemolysis in PWS patients. Comprehensive mechanistic investigations unveiled compromised membrane skeletal assembly and membrane lipid composition, and revealed a reduced F-actin/G-actin ratio in PWS patients. We ascribed these phenotypic changes in erythrocytes to the observed genetic defects, including DNA methylation abnormalities. Our collective data allowed us to uncover RBC deformation in children with PWS, and this may constitute an auxiliary indicator of PWS in early childhood.

关键词： Prader–Willi syndrome     early diagnosis     erythrocyte deformation     membrane skeleton     membrane lipid    

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UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1379-x

摘要：

• UV-LED with shorter wavelength was beneficial for photocatalytic degradation.

关键词： Degradation     Photocatalytic     LED     CMIT     P25    

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全光谱 LED 照明用荧光粉发展现状及趋势

陈晓霞,张霞 ,刘荣辉,刘元红,周裔朋,庄卫东

《中国工程科学》 2020年 第22卷 第2期   页码 71-78 doi: 10.15302/J-SSCAE-2020.02.011

摘要：

随着人们对照明品质要求的提高，全光谱发光二极管（LED）照明成为发展热点。本文对全光谱 LED 用关键材料——荧光粉进行了详细分析，对比了每种体系的发光性能并给出了各类型的代表材料，重点阐述了紫光–近紫外光激发的多种颜色荧光粉的优劣势、研究进展以及实际应用情况可重点突破适合紫光–近紫光激发高光效和高热稳定性的宽谱蓝粉、青粉、黄绿粉、黄粉、长波红粉以及单一基质白光荧光粉的制备和应用技术，开发与现有应用产品体系相匹配的高效及连续化制备技术，由此促进全光谱 LED

关键词： 全光谱LED     高品质照明     紫光芯片     荧光粉    

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Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

《能源前沿（英文）》 2016年 第10卷 第4期   页码 473-478 doi: 10.1007/s11708-016-0420-z

摘要： A dual input LED lighting scheme with constant illumination is proposed in this paper. The scheme employs a photovoltaic array as the first input and a battery as the second one. A microcontroller is programmed to operate a changeover switch as well as a DC-DC converter for uninterrupted and constant illumination in work place. The scheme is suitable for conference halls, laboratories, clean rooms, marriage halls, theaters, etc. The complete modeling, design and experimentation of the proposed scheme are explained and the economic viability of the scheme is justified.

关键词： photovoltaic     LED light     dual input     P&O algorithm    

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Dymola-based multi-parameters integrated optimization for high speed transfer system of LED chip sorter

Jie OUYANG, Bin LI, Shihua GONG

《机械工程前沿（英文）》 2013年 第8卷 第2期   页码 118-126 doi: 10.1007/s11465-013-0253-y

摘要：

To enhance the performance of high speed transfer system of LED chip sorting equipment, its control parameters need to be well matching with the mechanical system. In practical issues, it is difficult and time-consuming work to get these parameters matched because their selection is strongly depended on individuals. In current work, an integrated optimization method was carried out to solve this problem, in which the multiple control parameters optimization, modeling and simulation were included, i.e., a multi-domain model of transfer system performed on Dymola platform. Based on this model, the searching area of the key control parameters was narrowed by performing integrated optimization. After that a group of parameters were selected from this narrowed area to perform the equipment’s controls. The result showed this method possesses a simple and reliable nature. The optimal solutions also indicated that the optimized control parameters can well satisfy the requirements of transfer system. On the other hand, it greatly reduced the engineering adjustment time by using this method.

关键词： LED chip sorter     multi-domain modeling and simulation     parameter optimization     modelica language    

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Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1447-x

摘要：

• The optimum SCR activity was realized by tuning the acid pretreatment.

关键词： Air pollution control     Nitrogen oxides     Selective catalytic reduction     Red mud     Solid waste utilization    

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Research and Practice of Meta-synthesis Management for the Government-led Urban Complex Construction

Ru-gui Chen,Jia-meng Chen

《工程管理前沿（英文）》 2014年 第1卷 第1期   页码 52-61 doi: 10.15302/J-FEM-2014008

摘要： This paper researches the overall construction target of government-led urban complex construction projects based on the perspective of sustainable urban development.In order to achieve benefit maximization, the meta-synthesis management for the government-led urban complex construction project is studied.In order to combine theory and practice, several typical government-led urban complex construction project cases, such as Guangzhou Higher Education Mega Center and Guangzhou International Financial City etc. areexamined. These examples point to thefeasibility of government-led meta-synthesis management and demonstrate the benefits that can be achieved through this model.

关键词： government-led construction project     urban complex     meta-synthesis management     sustainable development     benefit maximization    

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Flexible resonant tank for a combined converter to achieve an HPS and LED compatible driver

Jin HU,Hui-pin LIN,Zheng-yu LU,Feng-wu ZHOU

《信息与电子工程前沿（英文）》 2015年 第16卷 第8期   页码 679-693 doi: 10.1631/FITEE.1500054

摘要： High pressure sodium (HPS) lamp has been widely used in street lighting applications because of its maturity, reliability, high lighting efficiency, long life-time, and low cost. Light emitting diode (LED) is expected as the next generation lighting source due to its continuously improving luminous efficacy, better color characteristic, and super long life-time. The two lighting sources may coexist in street lighting applications for a long time. A novel HPS and LED compatible driver is proposed which is rather suitable and flexible for driving HPS and LED in street lighting applications. The proposed driver combines the LLC and LCC resonant circuits into a flexible resonant tank. The flexible resonant tank may change to LLC or isolated LCC circuit according to the lighting source. It inherits the traditional HPS and LED drivers’ zero voltage switching (ZVS) characteristics and dimmable function. The design of the proposed flexible resonant tank considers the requirements of both HPS and LED. The experiments of driving HPS and LED on a prototype driver show that the driver can drive the two lighting sources flexibly with high efficiency.

关键词： High pressure sodium (HPS)     Light emitting diode (LED)     Compatible driver     Ballast    

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Materials sustainability for environment: Red-mud treatment

Brajendra Mishra, Sumedh Gostu

《化学科学与工程前沿（英文）》 2017年 第11卷 第3期   页码 483-496 doi: 10.1007/s11705-017-1653-z

摘要： Bayer’s process revolutionized the extraction of aluminum from the bauxite ores. However, the hydrothermal extraction of alumina is associated with the generation of a byproduct, red-mud consisting of undissolved solids composed of iron oxides, sodium alumino silicates, titania, silica and rare earth elements. The accumulation of red-mud (or bauxite residue) in the world is 30 billion metric tons produced at a rate of 125 million tons per annum (2013). Utilization of red-mud for constructional purposes, wastewater treatment, metallurgical products, and pigments are listed. Metallurgical processing efforts of red-mud to generate various value added products such as pig iron, direct reduced iron slag wool, magnetite, titania, iron carbides are presented in the article.

关键词： red-mud processing     waste management     sustainability     valorization    

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cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal of acid red

《化学科学与工程前沿（英文）》 2023年 第17卷 第7期   页码 853-866 doi: 10.1007/s11705-022-2256-x

摘要： The discharge of large amounts of dye-containing wastewater seriously threats the environment. Adsorbents have been adopted to remove these dyes present in the wastewater. However, the high adsorption capacity, predominant pH-responsibility, and excellent recyclability are three challenges to the development of efficient adsorbents. The poly(acryloxyethyl trimethylammonium chloride)-graft-dialdehyde cellulose nanocrystals were synthesized in our work. Subsequently, the cationic dialdehyde cellulose nanocrystal cross-linked chitosan nanocomposite foam was fabricated via freeze-drying of the hydrogel. Under the optimal ratio of the cationic dialdehyde cellulose nanocrystal/chitosan (w/w) of 12/100, the resultant foam (Foam-12) possesses excellent absorption properties, such as high porosity, high content of active sites, strong acid resistance, and high amorphous region. Then, Foam-12 was applied as an eco-friendly adsorbent to remove acid red 134 (a representative of anionic dyes) from aqueous solutions. The maximum dye adsorption capacity of 1238.1 mg∙g‒1 is achieved under the conditions of 20 mg∙L‒1 adsorbents, 100 mg∙L‒1 dye, pH 3.5, 24 h, and 25 °C. The dominant adsorption mechanism for the anionic dye adsorption is electrostatic attraction, and Foam-12 can effectively adsorb acid red 134 at pH 2.5–5.5 and be desorbed at pH 8. Its easy recovery and good reusability are verified by the repeated acid adsorption–alkaline desorption experiments.

关键词： chitosan foam     cellulose nanocrystals     acid red 134     adsorption    

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Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

《环境科学与工程前沿（英文）》 2013年 第7卷 第4期   页码 559-567 doi: 10.1007/s11783-013-0501-8

摘要： Pyrene, a representative polycyclic aromatic hydrocarbon (PAH) compound produced mainly from incomplete combustion of fossil fuels, is hazardous to ecosystem health. However, long-term exposure studies did not detect any significant effects of pyrene on soil microorganism. In this study, short-term microcosm experiments were conducted to identify the immediate effect of pyrene on soil bacterial communities. A freshly-collected pristine red soil was spiked with pyrene at 0, 10, 100, 200, and 500 mg·kg and incubated for one day and seven days. The bacterial communities in the incubated soils were analyzed using 16S rRNA sequencing and terminal restriction fragment length polymorphism (T-RFLP) methods. The results revealed high bacterial diversity in both unspiked and pyrene-spiked soils. Only at the highest pyrene-spiking rate of 500 mg·kg , two minor bacteria groups of the identified 14 most abundant bacteria groups were completely suppressed. Short-term exposure to pyrene resulted in dominance of Proteobacteria in soil, followed by Acidobacteria, Firmutes, and Bacteroidetes. Our findings showed that bacterial community structure did respond to the presence of pyrene but recovered rapidly from the perturbation. The intensity of impact and the rate of recovery showed some pyrene dosage-dependent trends. Our results revealed that different levels of pyrene may affect the bacterial community structure by suppressing or selecting certain groups of bacteria. It was also found that the bacterial community was most susceptible to pyrene within one day of the chemical addition.

关键词： pyrene     bacterial communities     terminal restriction fragment length polymorphism     short-term exposure     rank-abundance plots    

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A MYB-INDUCED MECHANISM FOR ENHANCED ASCORBATE IN RED-FLESHED APPLES

《农业科学与工程前沿（英文）》 2021年 第8卷 第2期

摘要：

The results presented in “The anthocyanin biosynthetic regulator MdMYB1 positively regulates ascorbic acid biosynthesis in apple” (An et al., this issue) provide evidence for a new mechanism for the elevation of ascorbate concentration in apple. Using a red-fleshed apple breeding population, the authors show how the anthocyanin-regulating MYB transcription factor, MdMYB1, also increases ascorbate concentrations by directly activating transcription of the dehydroascorbate reductase gene MdDHAR. This gene recycles oxidized ascorbate back to ascorbate, leading to elevated concentrations of vitamin C. These red-fleshed apples have enhanced concentrations of both anthocyanins and ascorbate, both of which are appealing traits for the development of healthier apples.

 

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标题 作者 时间 类型 操作

Effects of red and blue LEDs on

Lili CHEN, Xuzhang XUE, Yadong YANG, Fei CHEN, Jie ZHAO, Xiquan WANG, Alam Tariful KHAN, Yuegao HU

期刊论文

Effects of rape straw and red mud on extractability and bioavailability of cadmium in a calcareous soil

Junxing YANG,Liqun WANG,Jumei LI,Dongpu WEI,Shibao CHEN,Qingjun GUO,Yibing MA

期刊论文

我国LED照明产业高端制造装备自主发展战略

“新一代绿色照明高端制造装备自主发展战略研究”课题组

期刊论文

Facile discovery of red blood cell deformation and compromised membrane/skeleton assembly in Prader–Willi

期刊论文

UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

期刊论文

全光谱 LED 照明用荧光粉发展现状及趋势

陈晓霞,张霞 ,刘荣辉,刘元红,周裔朋,庄卫东

期刊论文

Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

期刊论文

Dymola-based multi-parameters integrated optimization for high speed transfer system of LED chip sorter

Jie OUYANG, Bin LI, Shihua GONG

期刊论文

Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

期刊论文

Research and Practice of Meta-synthesis Management for the Government-led Urban Complex Construction

Ru-gui Chen,Jia-meng Chen

期刊论文

Flexible resonant tank for a combined converter to achieve an HPS and LED compatible driver

Jin HU,Hui-pin LIN,Zheng-yu LU,Feng-wu ZHOU

期刊论文

Materials sustainability for environment: Red-mud treatment

Brajendra Mishra, Sumedh Gostu

期刊论文

cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal of acid red

期刊论文

Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

期刊论文

A MYB-INDUCED MECHANISM FOR ENHANCED ASCORBATE IN RED-FLESHED APPLES

期刊论文