Research on the Accumulative Effect by the Endogenous Release of Sediment in Offshore Area from Guanhe to Liezihe Estuary

2011 ◽  
Vol 347-353 ◽  
pp. 2146-2155
Author(s):  
Zheng Rong Sha ◽  
Yu Zhou
Keyword(s):  
Specific Area ◽  
Environmental Capacity ◽  
Concentration Difference ◽  
Offshore Area ◽  
Actual Measurement ◽  
Sediment Release ◽  
Suspended Substances ◽  
Sedimentation Flux ◽  
Release Ratio ◽  
Endogenous Release

The paper conducts a quantitative study on the accumulative effect of the sedimentation and release of the sediment pollutants in the offshore area from Guanhe to Liezihe Estuary of Jiangsu along China coast. The study begins with the index of major pollutants in the sediment of this area and establishes the calculation relations of them between the water over the seabed and sediment pollutants. The sedimentation flux of suspended substances is calculated taking into account the mud-sand absorption in the river estuaries and the change of sediment release with time and space. Hydrodynamic force as the basic principle as well as the determining factor for offshore sediment release is analyzed in the last section of the paper. The model for the sedimentation release and the calculation formula for the sediment release ratio are established, and related parameters are set based on actual measurement and analysis of space attenuation of sediment release. Innovation is made for the “method of concentration difference location for sediment mixture” and the increment of pollutants and decrement of environmental capacity within a specific area are calculated. Calculation and verification are also carried out based on the data from actual measurement.

Advanced TEM sample preparation techniques for submicron Si devices

1995 ◽  
Vol 53 ◽  
pp. 516-517 ◽  
Author(s):  
P. B. Basham ◽  
H. L. Tsai
Keyword(s):  
Sample Preparation ◽  
Process Development ◽  
Light Transmission ◽  
Specific Area ◽  
Turnaround Time ◽  
Small Hole ◽  
Area Of Interest ◽  
Transmission Electron ◽  
Polished Side ◽  
Preparation Techniques

The use of transmission electron microscopy (TEM) to support process development of advanced microelectronic devices is often challenged by a large amount of samples submitted from wafer fabrication areas and specific-spot analysis. Improving the TEM sample preparation techniques for a fast turnaround time is critical in order to provide a timely support for customers and improve the utilization of TEM. For the specific-area sample preparation, a technique which can be easily prepared with the least amount of effort is preferred. For these reasons, we have developed several techniques which have greatly facilitated the TEM sample preparation.For specific-area analysis, the use of a copper grid with a small hole is found to be very useful. With this small-hole grid technique, TEM sample preparation can be proceeded by well-established conventional methods. The sample is first polished to the area of interest, which is then carefully positioned inside the hole. This polished side is placed against the grid by epoxy Fig. 1 is an optical image of a TEM cross-section after dimpling to light transmission.

MicroVolt Variations of The Human Brain (Quantitative Electroencephalography) Display Differential Torque Effects During West-East versus North-South Orientation in the Geomagnetic Field

2016 ◽  
Vol 12 (2) ◽  
pp. 4255-4259
Author(s):  
Michael A Persinger ◽  
David A Vares ◽  
Paula L Corradini
Keyword(s):  
Human Brain ◽  
Geomagnetic Field ◽  
Neuronal Cell ◽  
Single Subject ◽  
Additional Energy ◽  
Actual Measurement ◽  
Neuronal Processes ◽  
Basic Physics ◽  
Order Of Magnitude ◽  
The Moment

                The human brain was assumed to be an elliptical electric dipole. Repeated quantitative electroencephalographic measurements over several weeks were completed for a single subject who sat in either a magnetic eastward or magnetic southward direction. The predicted potential difference equivalence for the torque while facing perpendicular (west-to-east) to the northward component of the geomagnetic field (relative to facing south) was 4 μV. The actual measurement was 10 μV. The oscillation frequency around the central equilibrium based upon the summed units of neuronal processes within the cerebral cortices for the moment of inertia was 1 to 2 ms which are the boundaries for the action potential of axons and the latencies for diffusion of neurotransmitters. The calculated additional energy available to each neuron within the human cerebrum during the torque condition was ~10-20 J which is the same order of magnitude as the energy associated with action potentials, resting membrane potentials, and ligand-receptor binding. It is also the basic energy at the level of the neuronal cell membrane that originates from gravitational forces upon a single cell and the local expression of the uniaxial magnetic anisotropic constant for ferritin which occurs in the brain. These results indicate that the more complex electrophysiological functions that are strongly correlated with cognitive and related human properties can be described by basic physics and may respond to specific geomagnetic spatial orientation.

An E-learning System in Malaysia based on Green Computing and Energy Level

2017 ◽  
Vol 1 (4-2) ◽  
pp. 184 ◽  
Author(s):  
Arif Ullah ◽  
Nazri Mohd Nawi ◽  
Asim Shahzad ◽  
Sundas Naqeeb Khan ◽  
Muhammad Aamir
Keyword(s):  
Environmental Concern ◽  
Specific Area ◽  
Green Computing ◽  
Learning System ◽  
Main Step ◽  
Primary Concern ◽  
Green Is ◽  
E Learning ◽  
Energy Consuming ◽  
Power And Energy

The increasing of energy cost and also environmental concern on green computing gaining more and more attention. Power and energy are a primary concern in the design and implementing green computing. Green is of the main step to make the computing world friendly with the environment.  In this paper, an analysis on the comparison of green computer with other computing in E-learning environment had been done. The results show that green computing is friendly and less energy consuming. Therefore, this paper provide some suggestions in overcoming one of main challenging problems in environment problems which need to convert normally computing into green computing. In this paper also, we try to find out some specific area which consumes energy as compared to green computing in E –learning centre in Malaysia. The simulation results show that more than 30% of energy reduction by using green computing.

The use of the objective structured clinical examination (OSCE) in a practice-based health discipline: Academic and student experience in paramedicine

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Andy Bell ◽  
Jennifer Kelly ◽  
Peter Lewis
Keyword(s):  
Clinical Examination ◽  
Best Practice ◽  
Assessment Tool ◽  
Clinical Performance ◽  
Reliability And Validity ◽  
Specific Area ◽  
Training Model ◽  
Objective Structured Clinical Examination ◽  
Evidence Based ◽  
Effective Measure

Abstract:Purpose:Over the past two decades, the discipline of Paramedicine has seen expediential growth as it moved from a work-based training model to that of an autonomous profession grounded in academia.  With limited evidence-based literature examining assessment in paramedicine, this paper aims to describe student and academic views on the preference for OSCE as an assessment modality, the sufficiency of pre-OSCE instruction, and whether or not OSCE performance is a perceived indicator of clinical performance.Design/Methods:A voluntary, anonymous survey was conducted to examine the perception of the reliability and validity of the Objective Structured Clinical Examination (OSCE) as an assessment tool by students sitting the examination and the academics that facilitate the assessment. Findings:The results of this study revealed that the more confident the students are in the reliability and validity of the assessment, the more likely they are to perceive the assessment as an effective measure of their clinical performance.  The perception of reliability and validity differs when acted upon by additional variables, with the level of anxiety associated with the assessment and the adequacy of feedback of performance cited as major influencers. Research Implications:The findings from this study indicate the need for further paramedicine discipline specific research into assessment methodologies to determine best practice models for high quality assessment.Practical Implications:The development of evidence based best practice guidelines for the assessment of student paramedics should be of the upmost importance to a young, developing profession such as paramedicine.Originality/Value: There is very little research in the discipline specific area of assessment for paramedicine and discipline specific education research is essential for professional growth.Limitations:The principal researcher was a faculty member of one of the institutions surveyed.  However, all data was non identifiable at time of data collection.  Key WordsParamedic; paramedicine; objective structured clinical examinations; OSCE; education; assessment.

A possible new hydrocarbon play, offshore central West Greenland

1998 ◽  
pp. 28-30
Author(s):  
Nina Skaarup ◽  
James A. Chalmers
Keyword(s):  
Seismic Data ◽  
Mineral Resources ◽  
Source Rocks ◽  
Bright Spot ◽  
Offshore Area ◽  
West Greenland ◽  
The Government ◽  
Structural Closure ◽  
Multichannel Seismic Data ◽  
Seismic Lines

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Skaarup, N., & Chalmers, J. A. (1998). A possible new hydrocarbon play, offshore central West Greenland. Geology of Greenland Survey Bulletin, 180, 28-30. https://doi.org/10.34194/ggub.v180.5082 _______________ The discovery of extensive seeps of crude oil onshore central West Greenland (Christiansen et al. 1992, 1994, 1995, 1996, 1997, 1998, this volume; Christiansen 1993) means that the central West Greenland area is now prospective for hydrocarbons in its own right. Analysis of the oils (Bojesen-Koefoed et al. in press) shows that their source rocks are probably nearby and, because the oils are found within the Lower Tertiary basalts, the source rocks must be below the basalts. It is therefore possible that in the offshore area oil could have migrated through the basalts and be trapped in overlying sediments. In the offshore area to the west of Disko and Nuussuaq (Fig. 1), Whittaker (1995, 1996) interpreted a few multichannel seismic lines acquired in 1990, together with some seismic data acquired by industry in the 1970s. He described a number of large rotated fault-blocks containing structural closures at top basalt level that could indicate leads capable of trapping hydrocarbons. In order to investigate Whittaker’s (1995, 1996) interpretation, in 1995 the Geological Survey of Greenland acquired 1960 km new multichannel seismic data (Fig. 1) using funds provided by the Government of Greenland, Minerals Office (now Bureau of Minerals and Petroleum) and the Danish State through the Mineral Resources Administration for Greenland. The data were acquired using the Danish Naval vessel Thetis which had been adapted to accommodate seismic equipment. The data acquired in 1995 have been integrated with the older data and an interpretation has been carried out of the structure of the top basalt reflection. This work shows a fault pattern in general agreement with that of Whittaker (1995, 1996), although there are differences in detail. In particular the largest structural closure reported by Whittaker (1995) has not been confirmed. Furthermore, one of Whittaker’s (1995) smaller leads seems to be larger than he had interpreted and may be associated with a DHI (direct hydrocarbon indicator) in the form of a ‘bright spot’.

MARINE GEO-HAZARDS IN THE COASTAL AND OFFSHORE AREA OF SOUTHERN SHANDONG PENINSULA

2012 ◽  
Vol 32 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Jiandong QIU ◽  
Jian LIU ◽  
Xianghuai KONG ◽  
Yong ZHANG ◽  
Baojing YUE ◽  
...  
Keyword(s):  
Shandong Peninsula ◽  
Offshore Area
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