نتایج جستجو برای: grab sampling
تعداد نتایج: 213607 فیلتر نتایج به سال:
The WSN is composed of a collection of sensor nodes, which are small energy constrained devices. In wireless sensor networks, the energy of nodes is limited. So designing efficient routing for reducing energy consumption is the important factor. This paper mainly focused on the routing problem in Wireless Sensor Networks and proposed three routing strategies named as CCB (Cluster and Chain Base...
Humanized mice, which are generated by transplanting human CD34+ hematopoietic stem cells into immunodeficient mice, are expected to be useful for the research on human immune responses. It is reported that antigen-specific T cell responses occur in immunodeficient mice transplanted with both human fetal thymus/liver tissues and CD34+ fetal cells, but it remains unclear whether antigen-specific...
In this study we measured the total concentration of BTCs using grab water sampling, dissolved with passive samplers, and particle-bound fraction sedimentation traps in a Finnish inland lake. The sampling was conducted from May to September over two years. samples average MBT at sites varied between 4.8 13 ng L −1 , DBT 0.9–2.4 TBT 0.4–0.8 during first year 0.6–1.1 0.5–2.2 < LOD-0.7 seco...
Determining the potential bioavailability of heavy metals, evaluating according to adapted regulations is essential efficiently conserve our coastal and estuarine waters. In this study, it aimed determine industrial pollution various other sources that Black Sea Basin exposed by using DGT (Diffusive Gradients in Thin Films) method grab (manuel) sampling water sediment evaluate existing quality ...
Tujuan dari peneltian ini untuk menguji dan menganalisis pengaruh secara parsial simultan kecepatan peralatan Crane kapal cakupan Grab terhadap produktivitas bongkar muat curah kering. Penelitian berlokasi di PT. Berlian Manyar Sejahtera yang merupakan salah satu perusahaan menyediakan kering, dalam melakukan kegiatan kering menggunakan crane grab sebagai alat bantu. Jenis penelitian korelasi, ...
The use of biting to obtain food items attached to the substratum is an ecologically widespread and important mode of feeding among aquatic vertebrates, which rarely has been studied. We did the first evolutionary analyses of morphology and motion kinematics of the feeding apparatus in Indo-Pacific members of an iconic family of biters, the marine angelfishes (f. Pomacanthidae). We found clear ...
Features extracted from echosounder bottom returns are compared with the ground truth in a North Sea survey area. The ground truth consists of 50 grab samples for which the grain size distribution, and the gravel and shell contents were determined. Echo envelopes are analysed for two single-beam echosounders, operated at frequencies of 66 and 150 kHz. It is shown that a set of six energetic, st...
The purpose of the present work was to study swimmers' efficiency during the underwater phase of the grab start. Eight high-level swimmers participated in this study. They performed two types of start: a regular grab start (with underwater leg propulsion after the glide) and a grab start with no underwater movement (swimmers had to remain in a streamlined position). Four cameras filmed the enti...
Small G-proteins (G) of the Ras-superfamily control the temporal and spatial coordination of intracellular signaling networks by acting as molecular on/off switches. Guanine nucleotide exchange factors (GEFs) regulate the activation of these G-proteins through catalytic replacement of guanosine diphosphate (GDP) by guanosine triphosphate (GTP). During nucleotide exchange, three distinct substra...
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