Acquisition of an Electronic Particle Counter

购买电子粒子计数器

• 批准号: 9513995
• 负责人: William Walton
• 金额: $ 2.5万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-01 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9513995&HistoricalAwards=false
• 关键词: Acquisition; Electronic; Particle; Counter

A critical need for an electronic particle counter is identified and funds are requested to purchase a Multisizer lle electronic particle counter made by Coulter Corporation. The particle counter will be used (1 ) to study the feeding ecology of larval mosquitoes and the relationship of feeding rates and particle selection to trophic state of larval developmental sites; (2) to study natural selection, population genetics, and plant reproductive ecology by quantifying traits such as pollen production, the amount of pollen removed by pollinators and pollination success, and by examining variation and environmental influences on the male component of plant reproductive success; (3) to determine the selection of different particle types by mosquito larvae and the impact of behavioral changes in feeding ecology (which cause resistance to ingestible toxins) on particle selection. feeding rates and, eventually, on the life histories of resistant vs susceptible strains of Culex mosquitoes; (4) to measure particle size distributions and abundance in mosquito developmental sites; and (5) to quantify and size occluded bacculoviruses. In addition to fulfilling the needs of the major and minor users, a particle counter will foster collaborations with colleagues at University of California - Riverside (UCR) and other institutions, meet the needs of postdoctoral scientists and graduate students working in our laboratories, and enhance the education of undergraduate and graduate students at UCR. The particle counter will be used by investigators applying diverse methodologies to a wide range of particle size. Therefore, funds are requested to purchase four additional aperatures. Funds are also requested to purchase software designed for the Multisizer lle, a free-standing IBM-compatible computer and a printer. As compared to comparably priced electronic particle counters, the advantages of the Multisizer lle system include ease of operation, a greater dynamic range of particle size, features that significantly enhance user safety, flexible and user-friendly software, features that reduce electronic interference from outside sources. and superior user-support services.

确定了对电子粒子计数器的迫切需求，并请求资金购买由 Coulter Corporation 制造的 Multisizer lle 电子粒子计数器。颗粒计数器将用于（1）研究蚊幼虫的摄食生态以及摄食率和颗粒选择与幼虫发育场所营养状态的关系； (2) 通过量化花粉产量、传粉媒介去除的花粉量和授粉成功等性状，并研究变异和环境对植物繁殖成功的雄性成分的影响，研究自然选择、群体遗传学和植物繁殖生态学； (3) 确定蚊子幼虫对不同颗粒类型的选择以及摄食生态行为变化（导致对可摄入毒素的抵抗力）对颗粒选择的影响。 摄食率，以及最终抵抗库蚊和敏感库蚊的生命史； (4) 测量蚊子发育场所的粒径分布和丰度； (5) 对封闭的杆状病毒进行定量和大小测定。除了满足主要和次要用户的需求外，粒子计数器还将促进与加州大学河滨分校（UCR）和其他机构的同事的合作，满足在我们实验室工作的博士后科学家和研究生的需求，并加强UCR本科生和研究生的教育。研究人员将使用颗粒计数器对各种颗粒尺寸应用不同的方法。因此，需要资金购买四个额外的孔径。还需要资金购买为 Multisizer lle 设计的软件、一台独立的 IBM 兼容计算机和一台打印机。与同等价格的电子颗粒计数器相比，Multisizer lle 系统的优点包括操作简便、颗粒尺寸动态范围更大、显着增强用户安全性的功能、灵活且用户友好的软件、减少外部来源电子干扰的功能。和卓越的用户支持服务。