Research On Technological Utilizing in an Automatic Device for Collecting Rain and Snow in Qinghai Province, China

Based on the climatic conditions in the northwest and the widely used water storage method in the northwest rural areas, we designed a rain and snow collection device, which is realized by an inductor and an “M” collection curtain, which uses the rotation of the motor and the supply of the heating film. Water purification and storage can be obtained through compound grit tanks, biochar adsorption systems, etc. The collected water resources can be integrated with water purification and storage through flood control and antifreeze devices. Real-time senses the changes of water level and water temperature. In this article, a calculation model for the optimal sedimentation effect is also established, which can calculate the minimum scale parameters of the sedimentation tank under different weather conditions, and provide guidance for the construction of the system. In addition, we tested the actual collection capacity of the system, and the results showed that the system has high practical value. At present, there is no a complete and systematic study integrated with it in the Northwest region. This system can alleviate the lack of water resources in some areas to a certain extent, play a positive role in the rural ecological environment and lessen floo

Top coal migration time measurement system based on accelerometer

The multi-round sequential memory coal drawing technology can improve the recovery rate of top coal and gangue content in the fully mechanized working face. But it needs to accurately measure and control the time of each round of coal drawing in field application. In the practical application of the automatic coal drawing technology based on the top coal migration tracker, the top coal movement tracker is only used as a mark point and is arranged in the top coal. The top coal movement tracker can not obtain more top coal movement information. In view of the above problems, based on the top coal movement tracker, a top coal migration time measurement system based on accelerometer is designed. The system includes three parts: tag, collector and central computer. The label is placed inside the top coal, and moves along with the top coal in the coal drawing process. Through the built-in accelerometer, the specific force data is collected in real-time. The time measurement algorithm is called to realize the monitoring of top coal migration. Then the different coal drawing stages are determined. The top coal migration time information of different stages is calculated. When the tag is released from the coal chute, it collides with the scraper conveyor belt, and sends the top coal migration time information outward to the collector through the RF signal. The information is further transmitted to the central computer through the field bus to guide the fully mechanized working face to realize multi-round of sequential coal drawing on site. The hardware and software design of the time measurement label of top coal migration is introduced in detail. The functions of real-time acquisition of specific force value, wireless signal transmission and data storage are realized. A calibration platform with 3D turntable as the core and Gauss-Newton method as the calibration algorithm is built. The calibration of the accelerometer is completed. The calibrated accelerometer can accurately collect the specific force data of the top coal migration time measurement label. According to the migration characteristics of top coal in the process of coal drawing, the time measurement algorithm based on threshold and the time measurement algorithm based on long-term and short-term memory (LSTM) are proposed. The time measurement algorithm based on threshold realizes the time identification of motion stage by introducing static threshold and maximum threshold. The time measurement algorithm based on LSTM identifies the dynamic changes of the specific force vector sum in the time domain, finds the mutation point, and realizes the time identification of the motion stage. The performance test of the two time measurement algorithms is completed through the tag free falling experiment. The time measurement variance is 0.000 6 and 0.000 2 respectively. The time measurement error is 13.07% and 5.22% respectively. The results meet the on-site top coal migration time measurement requirements. And the time measurement algorithm based on LSTM has obvious application advantages in top coal migration time measurement

Analyse de la prescription antibiotique dans le service de gynécologie-obstétrique d un centre hospitalier antillais (revue rétrospective de 300 séjours)

Objectif :Décrire l antibiothérapie dans le service de gynécologie-obstétrique du Centre Hospitalier Louis-Constant Fleming, déterminer les facteurs influençant la prise d antibiotiques et l adéquation de l antibiothérapie et définir d un point de vue socio-démographique la population étudiée.Matériel et méthodes : Analyse rétrospective, sur dossier médical et dossier de soin, des séjours tirés au sort entre 2009 et 2011, à l aide d un questionnaire par un staff multidisciplinaire.Résultats : 293 séjours ont été analysés, 35,5 % des patientes avaient reçu une antibiothérapie. Les pénicillines(87%) représentaient la classe thérapeutique la plus fréquemment prescrite. Les principales indications étaient la rupture prématurée des membranes (19%), le portage vaginal connu(17%) et inconnu(13%) du streptocoque du groupe B. 82% des antibiothérapies étaient protocolisées avec une conformité globale au protocole de 64%.18% des antibiothérapies étaient non protocolisées avec 55% des antibiothérapies adéquates. 78% des antibiothérapies étaient prophylactiques avec 64% de prescription adéquate. 22% des antibiothérapies étaient curatives avec 58% des prescriptions adéquates. Le taux d antibiothérapies adéquates dans l ensemble était de 59%. Une origine ethnique caribéenne était associée à un risque accru de prise d antibiotiques tandis que la présence d une comorbidité était associée à une prescription moindre. L adéquation de l antibiothérapie était meilleure en pré ou per-partum qu en post-partum. Les patientes présentaient une prévalence importante d indicateurs de précarité :38,1% n avaient pas de couverture sociale ou avaient une CMU ou AME, 54,7 % des patientes avaient un niveau scolaire inférieur au baccalauréat et 50,9 % des patientes étaient sans emploi.Conclusion : Différentes actions pourraient être menées pour améliorer l antibiothérapie : refonte des protocoles existants avec promotion active ; informatisation des prescriptions d antibiotiques et intégration du score EPICES dans le dossier obstétrical afin d organiser une prise en charge globale des patientes.Objective : To describe the antibiotherapy in the gynaecology and obstetrics department of Louis Constant Fleming Medical Center, determine the factors influencing the intake of antibiotics, whether the antibiotherapy is appropriate and define the studied population socio-demographywise.Methods: Retrospective analysis, from medical and nursing files, of the randomized stays between 2009 and 2011, with a questionnaire by a multidisciplinary staff.Results : 293 stays were analysed, 35.5 % of patients received an antibiotherapy. Penicillins (87%) was the medical treatment most commonly prescribed. The main indications were the premature rupture of membranes (19%), the vaginal carriage known (17%) and unknown (13%) of Streptococcus B. 82 % of antibiotherapies followed a protocol with 64 % of them in conformity with it. 18% of antibiotherapies did not follow a protocol with 55 % of them being appropriate. 78% of antibiotherapies were preventive with 64 % of appropriate prescriptions. 22 % of antibiotherapies were curative with 58% of them being appropriate. The rate of appropriate antibiotherapies was 59% on the whole. A caribbean ethnic origin was associated to a higher risk of antibiotic intake, as opposed to the presence of a comorbidity which was associated to a lower intake. The antibiotherapy was more appropriate in pre or per-partum, better than in post-partum. The patients had a high prevalence of indicators of precariousness : 38.1 of them had no social insurance or had CMU or AME, 54.7 of them had stopped their education before bachelor s degree and 50.9 of patients were unemployed.Conclusions : Different actions could be lead to improve the antibiotherapy : remodelling the existing protocols with active promotion; computerizing of the prescriptions of antibiotics and integration of the EPICES score in the obstetrics file to organize a global care of the female patients.ABYMES-CHRUPPA-BU (971202102) / SudocSudocFranceF

Schematics of systematic evolution of DNA aptamers against U118-MG cells.

<p>Schematics of systematic evolution of DNA aptamers against U118-MG cells.</p

Using the selected aptamers to recognize FFPE normal or glioma tissue sections.

<p>FFPE tissue sections were incubated with cy5-labeled aptamers. A =  Normal brain tissue with GBM128; B =  Glioblastoma tissue with GBM128; C =  Anaplastic oligodendroglima with GBM128; D =  Oligoastrocytoma with GBM128; E =  Pilocytic astrocytoma with GBM128; F =  Normal brain tissue with GBM131; G =  Glioblastoma tissue with GBM131; H =  Anaplastic oligodendroglima with GBM131; I =  Oligoastrocytoma with GBM131; J =  Pilocytic astrocytoma with GBM131. The final concentration of Cy5-labeled aptamers was 250 nM.</p