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Research on Bionic Fungicide Yintai and Its Application

Meng Zhaoli,Fang Xiangyang,Luo Lan,Shang Jian

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 28-34

Abstract: bionic fungicides synthesized by simulating the lead compound of ginkgol isolated from the exosperm of ginkgofruit. 8.3-time diluted solution of alcohol crude extract from the ginkgo fruit showed 100% inhibtionBoth 200-time and400time solutions of ginkgol, extracted from external seed coat of ginkgo, had 100%against4kinds of pathogens, including apple canker, tomato gray mold, and so on, ranges from 17.26 mg/Lto 48.43 mg/L, better than the contrast chemicals respectively.

Keywords： Ginkgo biloba L.     ginkgol     bionic synthesis     Yintai     control effect    

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Neuroprotective effects of Ginkgo biloba extract and Ginkgolide B against oxygen–glucose deprivation/

Xiaohan Yang, Tiezheng Zheng, Hao Hong, Nan Cai, Xiaofeng Zhou, Changkai Sun, Liying Wu, Shuhong Liu, Yongqi Zhao, Lingling Zhu, Ming Fan, Xuezhong Zhou, Fengxie Jin

Frontiers of Medicine 2018, Volume 12, Issue 3,   Pages 307-318 doi: 10.1007/s11684-017-0547-2

Abstract:

Acute ischemic stroke (AIS), as the third leading cause of death worldwide, is characterized by its high incidence, mortality rate, high incurred disability rate, and frequent reoccurrence. The neuroprotective effects of extract (GBE) against several cerebral diseases have been reported in previous studies, but the underlying mechanisms of action are still unclear. Using a novel rat cortical capillary endothelial cell-astrocyte-neuron network model, we investigated the neuroprotective effects of GBE and one of its important constituents, Ginkgolide B (GB), against oxygen–glucose deprivation/reoxygenation and glucose (OGD/R) injury. In this model, rat cortical capillary endothelial cells, astrocytes, and neurons were cocultured so that they could be synchronously observed in the same system. Pretreatment with GBE or GB increased the neuron cell viability, ameliorated cell injury, and inhibited the cell apoptotic rate through Bax and Bcl-2 expression regulation after OGD/R injury. Furthermore, GBE or GB pretreatment enhanced the transendothelial electrical resistance of capillary endothelial monolayers, reduced the endothelial permeability coefficients for sodium fluorescein (Na-F), and increased the expression levels of tight junction proteins, namely, ZO-1 and occludin, in endothelial cells. Results demonstrated the preventive effects of GBE on neuronal cell death and enhancement of the function of brain capillary endothelial monolayers after OGD/R injury ; thus, GBE could be used as an effective neuroprotective agent for AIS/reperfusion, with GB as one of its significant constituents.

Keywords： acute ischemic stroke     Ginkgo bilobaextract     Ginkgolide B     network model     neuroprotection    

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In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1730-0

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Comments on the special issue on forestry of

John L. INNES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 502-503 doi: 10.15302/J-FASE-2017189

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Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 373-387 doi: 10.1007/s11709-014-0087-7

Abstract: Normal strength prestressed concrete I-girders are commonly used as the primary superstructure components in highway bridges. However, shear design guidelines for high strength PC girders are not available in the current structural codes. Recently, ten 7.62 m (25 feet) long girders made with high strength concrete were designed, cast, and tested at the University of Houston (UH) to study the ultimate shear strength and the shear concrete contribution ( ) as a function of concrete strength ( ). A simple semi-empirical set of equations was developed based on the test results to predict the ultimate shear strength of prestressed concrete I-girders. The UH-developed set of equations is a function of concrete strength ( ), web area ( ), shear span to effective depth ratio ( / ), and percentage of transverse steel ( ). The proposed UH-Method was found to accurately predict the ultimate shear strength of PC girders with concrete strength up to 117 MPa (17000 psi) ensuring satisfactory ductility. The UH-Method was found to be not as overly conservative as the ACI-318 (2011) code provisions, and also not to overestimate the ultimate shear strength of high strength PC girders as the AASHTO LRFD (2010) code provisions. Moreover, the proposed UH-Method was found fairly accurate and not exceedingly conservative in predicting the concrete contribution to shear for concrete strength up to 117 MPa (17000 psi).

Keywords： shear design     high strength concrete     prestressed girders     full-scale tests    

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Deeply missing my career idol and role model ― Professor Perry L. McCarty

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1717-x

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Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 595-595 doi: 10.1007/s11783-012-0452-5

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Advances in Underground Construction Help Provide Quality of Life for Modern Societies

Raymond L. Sterling

Engineering 2017, Volume 3, Issue 6,   Pages 780-781 doi: 10.1016/j.eng.2017.12.006

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A Standard for the Commissioning Process

William L. Gillis,Elizabeth A. Cudney

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 39-51 doi: 10.15302/J-FEM-2015006

Abstract: The demand for commissioning services for new-building construction projects is experiencing rapid growth. Commissioning (Cx) is touted as being a quality-focused process for ensuring the owner’s project requirements (OPR) are met by design, final construction, and the operations of a building. To an owner this is just what is needed to receive a perfect building at occupancy. However, as many owners have realized, the Cx process does not guarantee the completed building will be what was expected. It should be pointed out that this is typically not caused by the Cx process, but the Cx process should or could have identified, in the early phases of the project, many of the issues that made it through to the completed building. There are a number of reasons why the Cx services received may not be optimal. Often it is poor communication and the transfer of knowledge between project teams. Cx should and can facilitate both communication and the transfer of knowledge from phase to phase. An adaptation of the quality function deployment (QFD) four-phase model can accomplish this by filling the gaps among the major Cx activities and provide a standard approach to the process. The four-phase model effectively links each of the Cx activities to each other and back to the OPR, providing a method for improved communication and knowledge transfer. This paper investigates some potential reasons for inconsistent Cx services, presents an argument for the need of a Cx standard, and proposes a potential standard.

Keywords： construction     engineering management     quality     commissioning    

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The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Engineering doi: 10.1016/j.eng.2023.09.014

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Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Cudney,William L. Gillis

Frontiers of Engineering Management 2016, Volume 3, Issue 3,   Pages 224-230 doi: 10.15302/J-FEM-2016036

Abstract: The construction of new buildings represents a significant investment. The goal of new building construction is to maximize value and minimize cost while staying on time and within budget. Translating customer requirements into engineering terms for new construction design is vital for a construction project to be successful. Quality function deployment has been successfully used in product development to capture the voice of the customer and translate it into engineering characteristics. Quality function deployment then carries these parameters into production and service to ensure the voice of the customer is being met with the final product. The house of quality, a tool within quality function deployment, can provide a means for comparison of owner’s project requirements and the proposed design, along with identifying how the design decisions impact meeting customer requirements and green building requirements. Quality function deployment can effectively link the project phases through design and construction and into operations and maintenance to ensure the owner’s project requirements are met with the final building. This research identifies and categorizes studies of quality function deployment applications in construction. The research method used is a systematic literature review from databases related to quality function deployment in the construction industry published in the periodicals through 2016. The principal findings of implementations, practices, and integrated approaches are then summarized. This article intends to propel further research of quality function deployment in the construction sector.

Keywords： construction     engineering management     quality function deployment     systematic review    

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Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1569-9

Abstract:

● Fe3O4 NPs increased the biomass and chlorophyll content of hemp clones.

Keywords： Fe3O4 nanoparticle     Hemp     Growth enhancement     THC     Metabolite    

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Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 203-209 doi: 10.1007/s11705-012-1277-2

Abstract: Antifungal activity of recombinant medicinal leech destabilase-lysozyme (rec.Dest-Lys) was investigated by using fungi: , and , including yeasts and . Its antibacterial activity was investigated on gram-negative bacteria . These activities were assessed by radial agar diffusion assay, and scanning and transmission electron microscopy. Therefore, destabilase-lysozyme not only is endo-isopeptidase and lysozyme, but also has antifungal and antibacterial activities. Muramidase activity of rec.Dest-Lys disappeared after heat-treating at 90°C for 50 min without the loss of its antimicrobial activity. Furthermore we showed for the first time that the heated-up derivative of rec.Dest-Lys exhibited more potent activities against the above enumerated fungi and gram-negative bacteria than original protein.

Keywords： recombinant destabilase-lysozyme (rec.Dest-Lys)     antimicrobial activity     antifungal activity     medicinal leech     heated-up derivative of rec.Dest-Lys (T-rec.Dest-Lys)    

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Simultaneous harvesting and cell disruption of microalgae using ozone bubbles: optimization and characterization study for biodiesel production

Lim, Peck L. Kiew, Steven Lim, Siti S. Rosli, Chung Y. Wong, Pau L. Show, Keat T. Lee

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1257-1268 doi: 10.1007/s11705-020-2015-9

Abstract: At the optimum ozonation conditions (6.14 g·h ozone concentration, 30 min ozonation time, 1 L·min of

Keywords： microalgae     biodiesel     ozonation     pre-treatment     lipid    

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Reduced texaphyrin: A ratiometric optical sensor for heavy metals in aqueous solution

Root, Gregory Thiabaud, Jonathan L. Sessler

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 19-27 doi: 10.1007/s11705-019-1888-y

Abstract: We report here a water-soluble metal cation sensor system based on the as-prepared or reduced form of an expanded porphyrin, texaphyrin. Upon metal complexation, a change in the redox state of the ligand occurs that is accompanied by a color change from red to green. Although long employed for synthesis in organic media, we have now found that this complexation-driven redox behavior may be used to achieve the naked eye detectable colorimetric sensing of several number of less-common metal ions in aqueous media. Exposure to In(III), Hg(II), Cd(II), Mn(II), Bi(III), Co(II), and Pb(II) cations leads to a colorimetric response within 10 min. This process is selective for Hg(II) under conditions of competitive analysis. Furthermore, among the subset of response-producing cations, In(III) proved unique in giving rise to a ratiometric change in the ligand-based fluorescence features, including an overall increase in intensity. The cation selectivity observed in aqueous media stands in contrast to what is seen in organic solvents, where a wide range of texaphyrin metal complexes may be prepared. The formation of metal cation complexes under the present aqueous conditions was confirmed by reversed phase high-performance liquid chromatography, ultra-violet-visible absorption and fluorescence spectroscopies, and high-resolution mass spectrometry.

Keywords： texaphyrin     fluorescent sensor     ion-sensing     indium     mercury    

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Title Author Date Type Operation

Research on Bionic Fungicide Yintai and Its Application

Meng Zhaoli,Fang Xiangyang,Luo Lan,Shang Jian

Journal Article

Neuroprotective effects of Ginkgo biloba extract and Ginkgolide B against oxygen–glucose deprivation/

Xiaohan Yang, Tiezheng Zheng, Hao Hong, Nan Cai, Xiaofeng Zhou, Changkai Sun, Liying Wu, Shuhong Liu, Yongqi Zhao, Lingling Zhu, Ming Fan, Xuezhong Zhou, Fengxie Jin

Journal Article

In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Journal Article

Comments on the special issue on forestry of

John L. INNES

Journal Article

Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Journal Article

Deeply missing my career idol and role model ― Professor Perry L. McCarty

Journal Article

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Journal Article

Advances in Underground Construction Help Provide Quality of Life for Modern Societies

Raymond L. Sterling

Journal Article

A Standard for the Commissioning Process

William L. Gillis,Elizabeth A. Cudney

Journal Article

The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Journal Article

Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Cudney,William L. Gillis

Journal Article

Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Journal Article

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Journal Article

Simultaneous harvesting and cell disruption of microalgae using ozone bubbles: optimization and characterization study for biodiesel production

Lim, Peck L. Kiew, Steven Lim, Siti S. Rosli, Chung Y. Wong, Pau L. Show, Keat T. Lee

Journal Article

Reduced texaphyrin: A ratiometric optical sensor for heavy metals in aqueous solution

Root, Gregory Thiabaud, Jonathan L. Sessler

Journal Article