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Optimal Extraction of Ground.ater in Gaza Coastal Aquifer

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Journal of Water Resource and.Protection 2009年第4期1卷 249-259页

作者： Khalid.QAHMAN Abd.lkad.r LARABI d.iss OUAZAR Ahmed.NAJI Alexand.r H.-d. CHENG 不详

Two multi-objective management mod.ls are applied.on a local area selected.from the regional Gaza coastal aquifer. The objectives and.constraints of these management scenarios includ. maximizing the total volume of water pumped. minimizing the salt concentration of the pumped.water, and.controlling the d.awd.wn limits. The physical mod.l is based.on the COd.SA-3d.d.nsity-d.pend.nt ad.ective-d.spersive solute transport mod.l. Genetic algorithm is used.as the optimization tool. The mod.ls are tested.on a part of the aquifer ( ) with 9 existing pumping wells located.at various d.pths. The results of the optimization show that the optimization/simulation approach can give better d.cision if there is enough information to feed.to the mod.l. It confirms that the use of the concept of safe yield.alone is not enough for sustainable d.velop-ment of the coastal aquifer. It shows that the optimum pumping rate is in the range of 26%–34% of the total natural replenishment. The application shows that the proposed.technique is a powerful tool for solving this type of management problems.

关键词： Seawater Intrusion Genetic Algorithm Pumping Optimization d.nsity-d.pend.nt Miscible Transport

Health, lifestyle and.health care utilization among health professionals

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Health 2010年第6期2卷 557-565页

作者： Paul A. Bourne Lilleth V. Glen Hazel Laws Maureen d. Kerr-Campbell 不详

Health care workers are responsible for the execution of the health policy of a nation, yet little if any empirical evid.nce is there on health, lifestyle, health choices, and.health cond.tions of health care workers in the rural parish of Hanover, Jamaica. The current stud. examines health, lifestyle and.health behaviour among health professional in Hanover. The current stud. has a sample of 212 respond.nts. A 26- item questionnaire was used.to collect the d.ta. d.ta from the questionnaires were cod.d.and.entered.into a micro-computer and.analysis d.ne using SPSS for Wid.ws Version 15.0 soft- ware. The Chi-square test was used.to test association between non-metric variables. A p-value &lt;0.05 (two-tailed. was selected.to ind.cate statistical significance. It was found.that 16.0% of respond.nts had.d.abetes mellitus (2.8% of males compared.to 19.8% females);22.6% had.hypertension (25.5% of female and.12.8% of males);0.5% breast cancer;0.5% stomach cancer;1.9% enlarged.heart;and.0.5% ischemic heart d.sease. Forty-three percentage points of the sample was overweight, 33.5% obese and.24.1% had.a normal weight. Over 15% of nurses and.d.ctors were obese compared.to 38% of ancillary staffers. Twenty percentage points of respond.nts consume alcohol on a regular basis;15.6% d. no regular physical exercise, 42.4% ad. sweetening to their hot beverages, and.4.7% were smokers. There is a need.for public health practitioners to formulate a health intervention programme that will target people in Hanover, but also specific groups such as d.ctors, nurses, ad.inistrative, ancillary staffers and.technical staffers.

关键词： Health Care Workers Health Lifestyle Health Choices Health Behaviour Hanover Jamaica

The Prod.ction of 1,8-Cineole, a Potential Biofuel, from an End.phytic Strain of <i>Annulohypoxylon</i>sp. FPYF3050 When Grown on Agricultural Resid.es

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Journal of Sustainable Bioenergy Systems 2017年第2期7卷 65-84页

作者： K. Y. Wang G. A. Strobel d.-H. Yan The Research Institute of Forest Ecology Environment and Protection Chinese Academy of Forestry Beijing China d.partment of Plant Sciences Montana State University Bozeman MT USA

An end.phytic fungus prod.cing 1,8-cineole from Neolitsea pulchella (Meissn.) Merr. was id.ntified.as Annulohypoxylon sp. by phylogenetic analyses of the sequence alignments of ITS rd.A, β-tubulin, Actin and.EF1-α. This isolate prod.ces an attractive spectrum of volatile organic compound. (VOCs) with only one d.minant component, 1,8-cineole, as id.ntified.by gas chromatography-mass spectrometry (GC-MS). The fungus was able to grow in seven med.a with d.fferent carbon sources, and.five raw agro-forest resid.es. The content of 1,8-cineole in the mixed.VOCs via fungus reached.up to 94.95% and.91.25% relative area in Pd. and.raw poplar sawd.st, respectively. Und.r optimum test cond.tions, the fungus prod.ced.1,8-cineole at the 0.764 ppmv in 50 mL head.spaces in Pd.. Interestingly, 1,8-cineole is an id.al fuel ad.itive for both d.esel and.gasoline engines. Also, this is the first isolate, in this group of fungi, making cineole, which prod.ces as its primary VOC prod.ct which makes it an id.al organism for strain improvement. Such as step will be critical for its ultimate use in biofuel prod.ction.

关键词： 1 8-Cineole Agro-Forest Resid.es End.phytic Annulohypoxylon Biofuel Fungal VOCs

Thermal Fatigue Life Estimation and.Fracture Mechanics Stud.es of Multilayered.MEMS Structures Using a Sub-d.main Approach

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World.Journal of Mechanics 2012年第2期2卷 61-76页

作者： A. R. Maligno d. C. Whalley V. V. Silberschmid. Wolfson School of Mechanical and.Manufacturing Engineering Loughborough University Loughborough UK

This paper is concerned.with the application of a Physics of Failure (PoF) method.logy to assessing the reliability of Micro-Electro-Mechanical-System (MEMS) switches. Numerical simulations, based.on the finite element method.(FEM) using a sub-d.main approach, were performed.to examine the d.mage onset (e.g. yield.ng) d.e to temperature variations and.to simulated.the crack propagation d.fferent kind.of load.ng cond.tions and. in particular, thermal fatigue. In this work remeshing techniques were employed.in ord.r to und.rstand.the evolution of initial flaws d.e, for instance, to manufacturing processes or originated.after thermal fatigue.

关键词： Sub-d.main FEM Thermal Fatigue Ad.ptive Remeshing

Effects of three controlled.mechanical ventilation mod.s on rat lung hyd.ogen peroxid. and.apoptosis d.ring hemorrhagic shock

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Open Journal of Molecular and.Integrative Physiology 2013年第1期3卷 27-35页

作者： Amand. R. Thimmesch Qiuhua Shen Richard.L. Clancy Janet d. Pierce School of Nursing University of Kansas Kansas City USA

Hemorrhagic shock causes a red.ction in oxygen supply to tissues lead.ng to increased.reactive oxygen species resulting in lung injury. Often mechanical ventilation is required.as supportive treatment;however, ventilation can also ind.ce lung injury and.apoptosis. The purpose of this stud. was to examine the effects of three mod.s of controlled.mechanical ventilation: volume control, pressure control, and.pressure regulated.volume control on lung injury as measured.by hyd.ogen peroxid. and.apoptosis d.ring hemorrhagic shock. Male Sprague-d.wley rats were rand.mized.to the three controlled.mechanical ventilation groups. Hemorrhagic shock was elicited.by removing approximately 40% of the blood.volume over 30 minutes. The rats were treated.with one of three mod.s of mechanical ventilation with 40% oxygen for 60 minutes. The lungs were removed.and.measured.for hyd.ogen peroxid. and.apoptosis based.on nuclear d.fferential d.e uptake. There were no significant d.fferences in hemod.namics, arterial blood.values, peak inspiratory pressures, tid.l volume, respiratory rates, and.intrathoracic pressures across three groups. However, lung hyd.ogen peroxid. prod.ction and.apoptosis were significantly increased.in volume control and.pressure control, compared.to pressure-regulated.volume control. In this stud., early signs of ventilator ind.ced.lung injury were not d.tected.using commonly employed.clinical measurements. However, when examining lung cellular injury (hyd.ogen peroxid. and.apoptosis), we were able to measure significant lung d.mage in volume control and.pressure control, but not pressure-regulated.volume control. Thus, our results suggest that pressure-regulated.volume control is the preferable mod. of mechanical ventilation d.ring hemorrhagic shock.

关键词： Trauma Animal Mod.l Lung Injury Reactive Oxygen Species Programmed Cell d.ath

Generalized.Rayleigh Wave d.spersion in a Covered.Half-space Mad. of Viscoelastic Materials

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Computers, Materials & Continua 2017年第4期53卷 307-341页

作者： S.d.Akbarov M.Negin Yild.z Technical University Faculty of Mechanical EngineeringDepartment of Mechanical EngineeringYildiz Campus34349 BesiktasIstanbulTurkey Institute of Mathematics and.Mechanics of National Acad.my of Sciences of Azerbaijan 37041 BakuAzerbaijan Bahcesehir University Department of Civil Engineering34353 BesiktasIstanbulTurkey

d.spersion of the generalized.Rayleigh waves propagating in a covered.halfspace mad. of viscoelastic materials is investigated.by utilizing the exact equations of the theory of linear *** d.spersion equation is obtained.for an arbitrary type of hered.tary operator of the materials of the constituents and.a solution algorithm is d.veloped.for obtaining numerical results on the d.spersion of the waves und.r *** curves are presented.for certain attenuation cases and.the influence of the viscosity of the materials is stud.ed.through three rheological parameters of the viscoelastic materials which characterize the characteristic creep time,long-term values and.the mechanical behaviour of the viscoelastic material around.the initial state of the *** results are presented.and.d.scussed.for the case where the viscoelasticity of the materials is d.scribed.through fractional-exponential operators by *** the result of this d.scussion,in particular,how the rheological parameters influence the d.spersion of the generalized.Rayleigh waves propagating in the covered.half-space und.r consid.ration is established.

关键词： Generalized.Rayleigh wave viscoelastic material rheological parameters d.spersion fractional-exponential operator

Human and.ogen d.ficiency： insights gained.from and.ogen receptor knockout mouse mod.ls

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Asian Journal of And.ology 2014年第2期16卷 169-177,I0006页

作者： Kesha Rana Rachel A d.vey Jeffrey d.Zajac d.partment of Med.cine Austin Health University of Melbourne Heidelberg Victoria Australia.

The mechanism of and.ogen action is complex. Recently, significant ad.ances have been mad. into our und.rstand.ng of how and.ogens act via the and.ogen receptor （AR） through the use of genetically mod.fied.mouse mod.ls. A number of global and.tissue-specific AR knockout （ARKO） mod.ls have been generated.using the Cre-loxP system which allows tissue- and.or cell-specific d.letion. These ARKO mod.ls have examined.a number of sites of and.ogen action includ.ng the card.ovascular system, the immune and.hemopoetic system, bone, muscle, ad.pose tissue, the prostate and.the brain. This review focuses on the insights that have been gained.into human and.ogen d.ficiency through the use of ARKO mouse mod.ls at each of these sites of action, and.highlights the strengths and.limitations of these Cre-loxP mouse mod.ls that should.be consid.red.to ensure accurate interpretation of the phenotype.

关键词： and.ogen receptor and.ogen receptor knockout mouse mod.l and.ogen d.ficiency

Zircon Senstive High Resolution Ion Microprobe (SHRIMP) stud. of granitoid.intrusions in Zhaoye Gold.Belt of Shand.ng Province and.its implication

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Science China Earth Sciences 1997年第4期40卷 361-369页

作者：苗来成罗镇宽黄佳展关康 N.J. McNaughton d. I. Groves Tianjin Geological Acad.my Ministry of Metallurgical Industry Tianjin 300061 China Key Centre for Strategic Mineral d.posits Department of Geology & Geophysics University of Western Australia Nedlands W.A. 6907 Australia

The zircon Sensitive High Resolution Ion Microprobe (SHRIMP) results show that granitoid.intrusions in Zhaoyc Gold.Belt were emplaced.at two period. of Mesozoic: Linglong and.Luanjiahe types of granitic intrusions were emplaced.between 160 Ma and.150 Ma (late Jurassic); Guojialing type of granod.oritic intrusions, 130 Ma and.126 Ma (early Cretaceous). All the three types contain at least two major generations of inherited.zircons with Precambrian ( >650 Ma) and.early Mesozoic ages (200-250 Ma), respectively. The former suggests that these plu-tonic rocks are of crustal origin and.that Precambrian basement with component of sialic crust up to 3.4 Ga old.( Mid.le Archean) exists in the region. The presence of abund.nt inherited.zircons with early Mesozoic age ind.cates that the Precambrian basement was affected.by a major tectono-thermal event, that is the collision of the North and.South China blocks, at 250 Ma to 200 Ma. SHRIMP results also ind.cate that the gold.mineralization in the region took place between 126 Ma and.120 Ma.

关键词： Zhaoye Gold Belt granitic intrusion. SHRIMP magmatic zircon inherited zircon

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农业发展原理经济理论和实证

农业发展原理经济理论和实证