34 results about "Exposure assessment" patented technology

The method of the present invention to re-factor, rationalize, and prioritize a service model and to assess service exposure in the service model is illustrated. The service model is reviewed and re-factored and the service portfolio and service hierarchy are refined, exposure decisions are made, and finally the service model and its constituent parts are rationalized based on the re-factoring and exposure decisions. Another technique called Service Litmus Tests (SLTs) is leveraged during service re-factoring and rationalization. SLTs are set of gating criteria to select and filter a set of (candidate) services from the service portfolio for exposure. A Service Exposure Assessment Toolkit (SEAT) is also presented in the present invention. SEAT is a mathematical model to facilitate making exposure decisions for services and prioritizing the services in the service model.

A miniaturized, ruggedized, field-deployable Portable Exposure Assessment System (PEAS) is used to remotely monitor workers and provide real-time warning of exposure to musculoskeletal injury conditions via alarm and smart-phone transmission. The PEAS unit wirelessly acquires exposure data from sensors; conducts initial data analysis; triggers proximal and remote alarms; sends out text messages with abnormal data, GPS locations, and time stamps to a safety office; and saves data for more extensive assessment. Sensor technology is used in this field-deployable system to simultaneously measure and collect the body loads and awkward postures imposed by package handling as well as driving-related, low-frequency vibration exposures. Wireless technology is used to set up wireless communication links between the sensors and a data logger and between the data logger and a smart phone with GPS, date / time stamp and text messaging capabilities.

A convenient and small near-ground atmospheric boundary layer wind tunnel and use thereof in the evaluation of population risk exposure. The near-ground atmospheric boundary layer wind tunnel comprises a wind tunnel body and a backflow stabilization device (6); the wind tunnel body is provided with a natural wind injection device (4) and a simulation test device (5), the natural wind injection device (4) is connected to the simulation test device (5), and the simulation test device (5) is connected to the backflow stabilization device (6); the natural wind injection device (4) is provided with a pipeline fan (1), a rotational flow mixing pipe (2), a diffusion and flow equalizing device (3) and a cyclone distribution pipe (16) which are connected in sequence; an inner member (17) for preventing flow separation is provided at a central position in the diffusion and flow equalizing device (3); and a static mixing spiral rod (18) is provided in the rotational flow mixing pipe (2), the static mixing spiral rod (18) being welded on an inner wall surface of the rotational flow mixing pipe (2). The measurement of the wind tunnel to an environmental migration and transformation behavior of atmospheric pollutants reduces the occupied area of the wind tunnel, reduces the investments, and can solve the problems of an environmental migration and transformation process of near-ground layer air pollutants in a local region and the evaluation of the influence thereof on the population health.

The invention discloses a method for predicting the exposure of chemicals in a wastewater aerobic treatment system (referred to as STP (O)). By adopting the wastewater aerobic biochemical treatment system as a basic process, according to symbiotic relationship among gas, water, suspended solids and sludge environmental media and the mass flow process of the chemicals, an STP (O) conceptual model is constructed and the prediction of the exposure level is completed by virtue of default environmental exposure scene parameters and only need of inputting the molecular weight, the vapor pressure (P), the water solubility (S), the aerobic biodegradation rate (k5), adsorption coefficient (Koc) and emissions (ERC) of the chemicals. The prediction method is simple, less in measured parameters and higher in prediction accuracy and is of important significance of exposure risk assessment of chemicals.

The present invention relates to a marker and method for assessing the toxic effect of air fine particle exposure on organisms, the markers include dihydrosphingosine, phytosphingosine, stearoylphosphatidylcholine, linolenoylglyceryl- One or more of 3-phosphorylcholine, linolenoylglyceryl-4-phosphorylcholine, palmitamide, valine, cytosine, the present invention can more comprehensively and comprehensively reflect the exposure of atmospheric fine particles The change status of metabolites is suitable for the assessment of the toxic effects of atmospheric fine particulate matter exposure.

The invention relates to a major hazard recognition method, a major hazard recognition system, a storage medium and a computer device. The method comprises steps: the state information of a hazard is acquired; the state information is inputted to a pre-built accident evolution model, and an accident type evolved by the hazard and the happening possibility of each accident type are obtained; according to the preset criterions, a disaster bearing carrier corresponding to the hazard is determined, and an exposure assessment model and a vulnerability assessment model of the disaster bearing carrier are acquired, wherein the number of preset criterions is at least two; the output result of the accident evolution model is read, and according to the output result, the exposure assessment model and the vulnerability assessment model, a risk prediction value corresponding to each criterion is calculated; and the risk prediction value of each preset criterion is compared with a corresponding risk threshold, and according to the comparison result, whether the hazard is a major hazard is judged. Thus, the major hazard can be effectively recognized, and happening of a major accident is prevented.