Search results for: Weitao He

Items from 1 to 9 out of 9 results

article

Fabrication and in vitro evaluation of 3D printed porous silicate substituted calcium phosphate scaffolds for bone tissue engineering

Dechun Chen, Guanghua Chen, Xin Zhang, Jingtao Chen, more

Biotechnology and Bioengineering > 119 > 11 > 3297 - 3310

Silicate‐substituted calcium phosphate (Si‐CaP) ceramics, alternative materials for autogenous bone grafting, exhibit excellent osteoinductivity, osteoconductivity, biocompatibility, and biodegradability; thus, they have been widely used for treating bone defects. However, the limited control over the spatial structure and weak mechanical properties of conventional Si‐CaP ceramics hinder their wide...

article

Countering Voltage Decay, Redox Sluggishness, and Calendering Incompatibility by Near‐Zero‐Strain Interphase in Lithium‐Rich, Manganese‐Based Layered Oxide Electrodes

Weitao He, Chunxiao Zhang, Meiyu Wang, Bo Wei, more

Advanced Functional Materials > 32 > 29 > n/a - n/a

Lithium‐rich, manganese‐based layered oxides are considered one of the most valuable cathode materials for the next generation of high‐energy density lithium‐ion batteries (LIBs) for their high specific capacity and low cost. However, their practical implementation in LIBs is hindered by the rapid voltage/capacity decay on cycling and the long‐standing contradictions between redox kinetics and volumetric...

article

Risk propagation mechanism: Qingdao Crude Oil Leaking and Explosion case study

Hongyong Liu, Weitao He, Ji Guo, Qiushuang Huang

Engineering Failure Analysis > 2015 > 56 > Complete > 555-561

Due to China’s acceleration of urbanization expansion, more and more oil/natural gas transmission pipelines, which were originally laid in the urban outskirts, are now in the densely populated urban areas. Therefore, the urban pipeline network security risks in its operation phase are more and more common. And more and more problems are caused. Using the disaster of “Qingdao Crude Oil Leaking and...

article

Carboxymethylated glucomannan as paper strengthening agent

Meng Wang, Weitao He, Shun Wang, Xianliang Song

Carbohydrate Polymers > 2015 > 125 > Complete > 334-339

Strength additives play an important role in allowing the papermaking industry to achieve its objectives. In this study, a new kind of paper strengthening agent based on glucomannan was developed by treating it with sodium chloroacetate under alkaline conditions, and the effects on paper properties were evaluated. Results indicated that carboxymethylated glucomannan could significantly improve the...

article

Impacts of temperature and nitrifying community on nitrification kinetics in a moving-bed biofilm reactor treating polluted raw water

Shuangfu Zhang, Yayi Wang, Weitao He, Min Wu, more

Chemical Engineering Journal > 2014 > 236 > C > 242-250

Although nitrification kinetics have been widely studied in wastewater treatment systems to optimize the design and operation of the nitrification process, more information is still needed to fully understand the kinetics of moving-bed biofilm reactors (MBBRs) used for biological pretreatment of low ammonia concentration polluted raw water. In this study, nitrification kinetics of a pilot-scale MBBR...

article

Linking nitrifying biofilm characteristics and nitrification performance in moving-bed biofilm reactors for polluted raw water pretreatment

Shuangfu Zhang, Yayi Wang, Weitao He, Meiyan Xing, more

Bioresource Technology > 2013 > 146 > Complete > 416-425

Biofilm physiology was characterized by four biofilm constituents, i.e., polysaccharides, proteins (PN), humic-like substances and phospholipids (PL), for the first time to explore the relationships between biofilm characteristics and nitrification performance in moving-bed biofilm reactors (MBBRs) designed for pretreatment of polluted raw surface water for potable supply. The biofilm compositions...

article

Responses of biofilm characteristics to variations in temperature and NH4+-N loading in a moving-bed biofilm reactor treating micro-polluted raw water

Shuangfu Zhang, Yayi Wang, Weitao He, Min Wu, more

Bioresource Technology > 2013 > 131 > Complete > 365-373

A pilot-scale moving-bed biofilm reactor (MBBR) for biological treatment of micro-polluted raw water was operated over 400days to investigate the responses of biofilm characteristics and nitrification performance to variations in temperature and NH ₄ ⁺ -N loading. The mean removal efficiency of NH ₄ ⁺ -N in the MBBR reached 71.4±26.9%, and batch experiments were performed to...

article

Effect of anaerobic reaction time on denitrifying phosphorus removal and N2O production

Yayi Wang, Junjun Geng, Zhongjia Ren, Weitao He, more

Bioresource Technology > 2011 > 102 > 10 > 5674-5684

Nitrous oxide (N ₂ O) is a highly potent greenhouse gas; however, the characteristics of N ₂ O production during denitrification using poly-β-hydroxyalkanoates (PHA) as a carbon source are not well understood. In this study, effects of anaerobic reaction time (AnRT) on PHA formation, denitrifying phosphorus removal and N ₂ O production were investigated using a laboratory-scale...

article

Effect of copper ion on the anaerobic and aerobic metabolism of phosphorus-accumulating organisms linked to intracellular storage compounds

Yayi Wang, Zhongjia Ren, Fan Jiang, Junjun Geng, more

Journal of Hazardous Materials > 2011 > 186 > 1 > 313-319

The shock load effect of heavy metals (Cu (II)) on the behavior of poly-phosphate-accumulating organisms (PAOs) was investigated with respect to the transformations of poly-P, intracellular polyhydroxyalkanoates (PHAs) and glycogen. The PAOs biomass was exposed to different concentrations of Cu (II) at various pH and biomass levels. The results showed that when the mixed liquor suspended solid (MLSS)...

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Keywords

MOVING-BED BIOFILM REACTOR (3)
BIOFILM CHARACTERISTICS (2)
POLLUTED RAW WATER (2)
TEMPERATURE (2)
3D PRINTED (1)
ANAEROBIC REACTION TIME (1)
ASYMMETRIC INFORMATION (1)
BONE MARROW MESENCHYMAL STEM CELLS (1)
CARBOXYMETHYLATION TREATMENT (1)
CITY OIL AND GAS PIPELINES (1)
COMPUTATIONAL FLUID DYNAMICS (1)
COPPER (1)
DENITRIFYING PHOSPHORUS REMOVAL (1)
ENGINEERING ETHICS (1)
ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL (1)
GLUCOMANNAN (1)
GLYCOGEN (1)
INDUSTRIAL CALENDARING PERFORMANCE (1)
LITHIUM‐RICH (1)
MANGANESE‐BASED LAYERED OXIDES (1)
MICRO-POLLUTED RAW WATER (1)
MICROBIAL ACTIVITY (1)
NEAR‐ZERO‐STRAIN INTERPHASE (1)
NH4+-N LOADING (1)
NITRIFICATION KINETICS (1)
NITRIFICATION PERFORMANCE (1)
NITRIFYING COMMUNITY (1)
NITRIFYING COMMUNITY STRUCTURE (1)
NITROUS OXIDE (N2O) (1)
OSTEOGENIC DIFFERENTIATION (1)
PAPER PROPERTIES (1)
PAPER STRENGTHENING AGENT (1)
POLY-P (1)
POLY-PHOSPHORUS-ACCUMULATING ORGANISMS (1)
POLY-Β-HYDROXYALKANOATES (1)
POLYHYDROXYALKANOATES (1)
PRINCIPAL PARTICIPANT’S BEHAVIORAL RISK (1)
PROPAGATION MECHANISM (1)
RATE CAPABILITY (1)
REACTIVE INFILTRATION METHODS (1)
SILICATE‐SUBSTITUTED CALCIUM PHOSPHATE (1)
TEMPERATURE COEFFICIENT (1)
TISSUE ENGINEERING (1)
VOLTAGE DECAY (1)
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Elsevier (7)
Wiley (2)

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