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Ballistic impact properties of woven bamboo-woven E-glass-unsaturated polyester hybrid composites

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Defence Technology（防务技术） 2019年第3期15卷 282-294页

作者： Aidy Ali Rabiatun Adawiyah Kannan Rassiah Wei Kuan Ng faiz Arifin faiz Othman muhammad Shauqi Hazin m.K. faidzi m.f. Abdullah m.m.H. megat Ahmad Department of mechanical Engineering Faculty of Engineering Universiti Pertahanan Nasional Malaysia (UPNM) National Defense University of Malaysia (NDUM) Kem Sg. Besi 57000 Kuala Lumpur Malaysia Department of mechanical Engineering Politeknik Port Dickson (PPD) KM 14 Jalan Pantai Si Rusa Negeri Sembilan Malaysia

In this study, a laminated woven bamboo/woven E glass/unsaturated polyester composite is developed to combat a ballistic impact from bullet under shooting test. The aim of this study is to understand the fundamental effects of the woven bamboo arrangement towards increasing ballistic resistance properties. The work focusses on the ballistic limit test known as NIJ V50, which qualifies materials to be registered for use in combat armor panels. The results show that the composites withstood 482.5 m/s ± 5 limit of bullet velocity, satisfying the NIJ test at level II. The findings give a strong sound basis decision to engineers whether or not green composites are qualified to replace synthetic composites in certain engineering applications.

关键词： Woven bamboo E glass Hybrid composites Ballistic limit velocity Energy absorption

Quality of effluents from Hattar Industrial Estate

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第12期7卷 974-980页

作者： SIAL R.A. CHAUDHARY m.f. ABBAS S.T. LATIf m.I. KHAN A.G. Pesticide Residue Laboratory Government of Punjab Kala Shah Kaku Pakistan Department of microbiology Quaid-i-Azam University Islamabad Pakistan Rice Program National Agriculture Research Center Islamabad Pakistan

Of 6634 registered industries in Pakistan, 1228 are considered to be highly polluting. The major industries include textile, pharmaceutical, chemicals (organic and inorganic), food industries, ceramics, steel, oil mills and leather tanning which spread all over four provinces, with the larger number located in Sindh and Punjab, with smaller number in North Western frontier Province (NWfP) and Baluchistan. Hattar Industrial Estate extending over 700 acres located in Haripur district of NWfP is a new industrial estate, which has been developed with proper planning for management of industrial effluents. The major industries located in Hattar are ghee industry, chemical (sulfuric acid, synthetic fiber) industry, textile industry and pharmaceuticals industry. These industries, although developed with proper planning are discharging their effluents in the nearby natural drains and ulti- mately collected in a big drain near Wah. The farmers in the vicinity are using these effluents for growing vegetables and cereal crops due to shortage of water. In view of this discussion, there is a dire need to determine if these effluents are hazardous for soil and plant growth. So, effluents from different industries, sewage and normal tap water samples were collected and analysed for pH, electrical conductivity (EC), total soluble salts (TSS), biological oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen, cations and anions and heavy metals. The effluents of ghee and textile industries are highly alkaline. EC and TSS loads of ghee and textile industries are also above the National Environmental Quality Standards (NEQS), Pakistan. All the effluents had residual sodium carbonates (RSCs), carbonates and bicarbonates in amounts that cannot be used for irrigation. Total toxic metals load in all the effluents is also above the limit i.e. 2.0 mg/L. Copper in effluents of textile and sewage, manganese in ghee industry effluents and iron contents in all the effluents were high

关键词： Industrial effluents Biological oxygen demand (BOD) Chemical oxygen demand (COD) pH Residual salts Lead Zinc Copper Nickel manganese Sewage

A mODEL fOR A TUmOR ATTACKED BY THE ImmUNE SYSTEm

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生物数学学报 1995年第2期10卷 1-4页

作者： Ahmed E. Elettreby m.f.(Department of mathematics,faculty of Science,mansoura 35516 Egypt) faculty of Science 埃及

A model for a tumor attacked by the immune system is *** shows the known behaviour of tumors ***,regression and dormant states.A comparison with both the models of Kuznetsov et al and that of Hiernaux et al is *** is ... 详细信息

关键词： A mODEL fOR A TUmOR ATTACKED BY THE ImmUNE SYSTEm

STUDY ON STRUCTURE AND PROPERTIES Of Ni-W-SiC COmPOSITE COATING

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Acta metallurgica Sinica(English Letters) 1997年第5期10卷 419-424页

作者： K. Y ma Z.C. Guo m.f. Wen X. W Yang and f. Han ( Kunming University of Science and Technology, Kunming 650093, China China National Nonferrous metals Imp. & Exp. Corp., Shanxi Company, Xi’an 710000, China ) Kunming Univ of Science and Technology Kunming China

The effects of electroplating conditions on the composition of N-W-SiC composite coating were studied; the znfiuence of heat-treatment and nitrocarburization on the microstructure, hardness and wear resistance of the coating were discussed. The results showed that an amorphous composite coating, containing(wt%) 50-55Ni, *** and 3.0-7.6SiC, could be electroplated on the matrix. Afier heat-treatment or nitrocarburization the coating crystallized to form some new phases, and the haordness and wear resistance of the composite coating were enhanced retmarkably.

关键词： electroplating Ni-W-SiC composite coating heat-treatment nitrocarburization

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评斯旺尼克的《音乐、心智与教育》

世界社会科学 1991年第8期 79-81页

作者： m.f.麦卡锡 ,禾子

在《音乐、心智和教育》一书中,K.斯旺尼克为英国的音乐教育提出了一种理论。他继承了卡尔·波佩尔的传统,认为“人类和科学的中心活动不过是对各种理论的诋毁和赞誉”。他不仅阐述理论问题,而且亲自谱曲。在书中,他以5章篇幅从理论上... 详细信息

在《音乐、心智和教育》一书中,K.斯旺尼克为英国的音乐教育提出了一种理论。他继承了卡尔·波佩尔的传统,认为“人类和科学的中心活动不过是对各种理论的诋毁和赞誉”。他不仅阐述理论问题,而且亲自谱曲。在书中,他以5章篇幅从理论上探讨了音乐教育实践中的三个难题:音乐课程的结构、文化联系以及对学生水平进展的评价。本书的意义在于,他综合了过去20年来英国音乐教育研究的成果,分析了社会中的音乐与教育中的音乐之间的关系。

关键词：音乐英国世界观学校大不列颠及北爱尔兰联合王国学堂世界音乐教育尼克音乐教学音乐教育体系斯旺心智

Conceptual design of distillation systems

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An ethanol biosensor based on a bacterial cell-immobilized eggshell membrane

丛书名： mcGraw-Hill chemical engineering series

2001年

作者： m.f. Doherty and m.f. malone.

来源：畅想之星图书光盘版（南... 评论

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Chinese Chemical Letters 2012年第4期23卷 481-483页

作者： Guang ming Wen Shao min Shuang Chuan Dong martin m.f.Choi School of Chemistry and Chemical Engineering Shanxi UniversityTaiyuan 030006China Research Center of Environmental Science and Engineering Shanxi UniversityTaiyuan 030006China Department of Chemistry Hong Kong Baptist UniversityHong KongChina

An ethanol biosensor was fabricated based on a methylobacterium organophilium-immobilized eggshell membrane and an oxygen（O2） electrode.A linear response for ethanol was obtained in the range of 0.050-7.5 mmol/L with a detection limit of 0.025 mmol/L（S/N= 3） and a *** 2.1%.The response time was less than 100 s at room temperature and ambient pressure. The optimal loading of bacterial cells on the biosensor membrane is 40 mg（wet weight）.The optimal working conditions for the microbial biosensor are pH 7.0 phosphate buffer（50 mmol/L） at 20-25℃.The interference test,operational and storage stability of the biosensor are studied in ***,the biosensor is applied to determine the ethanol contents in various alcohol samples and the results are comparable to that obtained by gas chromatographic method and the results are *** proposed biosensor provides a convenient,simple and reliable method to determine ethanol content in alcoholic drinks.

关键词： Oxygen electrode methylobacterium organophilium Wine microbial biosensor Ethanol Eggshell membrane

The chemosensory appendage proteome of Amblyomma americanum （Acari： Ixodidae） reveals putative odorant-binding and other chemoreception-related proteins

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Insect Science 2017年第5期24卷 730-742页

作者： Robert Renthal Leena manghnani Sandra Bernal Yanyan Qu Wendell P. Griffith Kim Lohmeyer felix O. Guerrero Ligia m.f. Borges Adalberto Perez de Leon Department of Biology University of Texas at San Antonio San Antonio TX 78249 USA Department of Biochemistry University of Texas Health Science Center San Antonio IX 78229 USA RCmI Protein Biomarkers Core University of Texas at San AntonioSan Antonio TX 78249 USA Department of Chemistry University of Texas at San Antonio San Antonio TX 78249 USA USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory Veterinary Pest Genomics Center Kerrville TX 78029 USA Instituto de Patologia Tropical e Saude Publica Universidade Federal de Goias Goiania Goias Brazil

Proteomic analyses were done on 2 chemosensory appendages of the lone star tick, Amblyomma americanum. Proteins in the fore tarsi, which contain the olfactory Haller＇s organ, and in the palps, that include gustatory sensilla, were compared with proteins in the third tarsi. Also, male and female ticks were compared. Proteins were identified by sequence similarity to known proteins, and by 3-dimensional homology modeling. Proteomic data were also compared with organ-specific transcriptomes from the tick Rhipicephalus microplus. The fore tarsi express a lipocalin not found in the third tarsi or palps. The fore tarsi and palps abundantly express 2 proteins, which are similar to insect odorant-binding proteins （OBPs）. Compared with insect OBPs, the tick OBP-like sequences lacked the cysteine absent in C-minus OBPs, and 1 tick OBP-like sequence had additional cysteines that were similar to C-plus OBPs. four proteins similar to the antibiotic protein microplusin were found： 2 exclusively expressed in the fore tarsi and 1 exclusively expressed in the palps. These proteins lack the microplusin copper-binding site, but they are modeled to have a significant internal cavity, potentially a ligand-binding site. Proteins similar to the dust mite allergens Der p7 and Der f 7 were found differentially expressed in female fore tarsi. A protein exclusively expressed in the fore tarsi has similarities to Neto, which is known to be involved in clustering ofionotropic glutamate receptors. These results constitute the first report of OBP-like protein sequences in ticks and point to several research avenues on tick chemosensory reception.

关键词： dust mite allergen Haller's organ lipocalin microplusin odorant-binding protein 3-dimensional homology modeling

Nanotechnology for Water Treatment: Is It the Best Solution Now?

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Journal of Earth Science 2023年第5期34卷 1616-1620页

作者： moustafa Gamal Snousy Hassan mohamed Helmy Jianhua Wu m.f.Zawrah A.Abouelmagd Egyptian Petroleum Sector Petrotrade Co.1 Anwar Al Moftty St.-Abbas El Akkad St.-Nasr CityCairoEgypt Geology Department Faculty of ScienceMinia UniversityEl-Minia 61519Egypt School of Water and Environment Chang'an UniversityNo.126 Yanta RoadXi'an 710054China Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the ministry of Education Chang'an UniversityNo.126 Yanta RoadXi'an 710054China Key Laboratory of Eco-Hydrology and Water Security in Arid and Semi-Arid Regions of the ministry of Water Resources Chang'an UniversityNo.126 Yanta RoadXi'an 710054China Refractory Ceramics and Building Materials DepartmentCenter of Excellence for Advanced SciencesAdvanced Materials and Nano GroupNational Research CentreCairo 12622-DokkiEgypt Egyptian Petroleum Sector 85 Nasr Road1st DistrictNasr CityCairoEgypt

INTRODUCTION Preservation of the freshwater resources is a big challenge for a healthy civilized *** water consumption increased more than twice the population increase rate,drinking water pollution and freshwater shortage increased dramatically during the last decades(Kar et al.,2012;mueller and Nowack,2010).Only 0.01%of freshwater resources are suitable for human needs(Rashid et al.,2019),even in the areas of abundant freshwater(Yeston et al.,2006).By 2050,over 5 billion of the world population will be under severe fresh water supply conditions due to climate change and urbanization exacerbate(Sealy,2019;Oves et al.,2015;Kar et al.,2012).Currently,one billion people drink unhygienic water,especially in developing countries which leads to severe waterborne diseases which might cause death(Aminiyan et al.,2018).Twelve million people die every year due to this problem(Zhao et al.,2019;Oves et al.,2015).

关键词： abundant freshwater pollution