697 Result(s)

Article

Family planning in China

Wei Wen in The Indian Journal of Pediatrics (1977)

Article

Engineering considerations for growth of bacteria at temperatures around 100°C

Laboratory results from studies of three extremely thermophilic sulfur-dependent archaebacteria (Pyrodictium occultum, Pyrodictium brockii, andPyrococcus furiosus) are used to illustrate both metabolic characteri...

A. K. Parameswaran, Wei-wen Su, R. N. Schicho… in Applied Biochemistry and Biotechnology (1988)

Article

Production of rosmarinic acid in high density perfusion cultures ofAnchusa officinalis using a high sugar medium

The most direct approach to enhancing the volumetric yield of secondary metabolites in plant tissue cultures is to operate the culture under high cell density. In this study, a cell suspension ofAnchusa officinal...

Wei-Wen Su, Arthur E. Humphrey in Biotechnology Letters (1990)

Article

Production of rosmarinic acid from perfusion culture ofAnchusa officinalis in a membrane-aerated bioreactor

In this study, a perfusion fermentation ofAnchusa officinalis was carried out in a stirred tank bioreactor integrated with an internal cross-flow filter. Bubble-free aeration via microporous membrane fibers was u...

Wei Wen Su, Arthur E. Humphrey in Biotechnology Letters (1991)

Chapter

Nitrogen Fixation of Azolla and its Utilization in Agriculture in China

The tiny aquatic fern, Azolla is an eukaryotic fern plant associated with a prokaryotic blue-green alga. In 1785, Lamarck named Azolla as a genus under Saliviniaceae. Wettstein separated Azolla from Saliviniaceae

Chung-Chu Liu, Wei-Wen Zheng in The Nitrogen Fixation and its Research in China (1992)

Article

Rosmarinic acid production in perfused Anchusa officinalis culture: Effect of inoculum size

High cell density and rosmarinic acid (RA) productivity have been achieved by applying periodic culture perfusion to the Anchusa officinalis cell suspension. In this study, the effect of inoculum size on cell gro...

Wei Wen Su, Fei Lei in Biotechnology Letters (1993)

Chapter

Geochemistry of Major Chinese River-Estuary Systems

The annual seaward water discharge of Chinese rivers accounts for 5% of the world fresh water flux, but these rivers represent approx. 15%-20% of world seawrads sediment load. Consequently the adjacent contine...

Zhang **, Huang Wei-wen, Liu Min-guang in Oceanology of China Seas (1994)

Chapter

Moisture Diffusion in Fresh and Dehydrated Fish Flesh Measured by PFG-NMR

Diffusion coefficient of moisture in codfish was measured using PFG–NMR. Intact as well as processed (minced with and without NaCI, fresh and heated, freeze-dried) sample were examined. The effect of diffusion...

Mika Fukuoka, Zhang Wei Wen, Tomoo Mihori… in Developments in Food Engineering (1994)

Article

Bioprocessing technology for plant cell suspension cultures

Considering various forms of in vitro plant tissue cultures, cell suspension culture is most amenable to large-scale production of natural compounds, owing primarily to its superior culture homogeneity. This f...

Wei wen Su in Applied Biochemistry and Biotechnology (1995)

Article

In situ filtration of Anchusa officinalis culture in a cell-retention stirred tank bioreactor

The effect of agitation and aeration on filtration of Anchusa officinalis culture in a stirred tank bioreactor integrated with an internal filter unit was investigated. Increases in suction head of the pump that ...

Wei Wen Su in Biotechnology Techniques (1995)

Article

Map** the genome one molecule at a time — optical map**

Akhtar H. Samad, Wei Wen Cai, **nghua Hu, Benjamin Irvin, Jun** **g… in Nature (1995)

Article

Conductance and dielectric properties of pure C₆₀ single crystal

Guoquan Yang, Gang Wang, Weijia Wen, Weiya Zhou, Kunquan Lu… in Chinese Science Bulletin (1997)

Article

Induction of somatic embryogenesis in Azadirachta indica

A modified culture protocol has been developed for the induction of somatic embryogenesis in Azadirachta indica (neem). Embryogenic calluses were initiated from cotyledons or hypocotyls using a Murashige and Skoo...

Wei Wen Su, Wen-Ing Hwang, Se Young Kim… in Plant Cell, Tissue and Organ Culture (1997)

Chapter

Secreted Metabolite Production in Perfusion Plant Cell Cultures

Operation of a novel bioreactor that allows continuous perfusion cultivation of plant cell suspensions is described in this paper. This external-loop, air-lift bioreactor has an internal settling zone for cell...

Wei Wen Su in BioHydrogen (1998)

Article

Fabrication of PZT microspheres for application in electrorheological fluids

Weijia Wen, Wing Yim Tam, ** Sheng in Journal of Materials Science Letters (1998)

Article

Size dependent dewetting and sideband reaction of eutectic SnPb on Au/Cu/Cr multilayered thin film

Dewetting of eutectic SnPb on blank Au(500 Å)/Cu(1 μm)/Cr(800 Å) layered structure was found to have a solder size dependence. At 250 °C, if the solder weight fell below 4 mg, dewetting occurred from the cente...

D. W. Zheng, Z. Y. Jia, C. Y. Liu, Weijia Wen, K. N. Tu in Journal of Materials Research (1998)

Article

Electrorheological fluids using bidispersed particles

We report very large enhancement of static yield stress for electrorheological fluids by adding ferroelectric nanoparticles of lead zirconate titanate (PZT) or lead titanate (PbTiO₃) to ER fluids consisting of 50...

Weijia Wen, Wing Yim Tam, ** Sheng in Journal of Materials Research (1998)