In CECGWEP, traditional gas drainage entries located in either the roof above or the floor below are replaced by gob-side retained entries in the preferential coal seam; a traditional U-type ventilation passageway is changed into a Y-type ventilation passageway.
Nonetheless, in view of the poor permeability of coal seams, complex geological conditions, high gas content, potential explosions of coal and gas, and limited coal production in China, problems involving large investments in hole drilling and specially designed drainage entries will arise if we continue using these traditional measures.
In patients with ectopic drainage problem, the entry site for choledochus to duodenum is a slit-like opening without a sphincteric structure and there is no intramural part of choledochus in these cases.
(2) Structural deformation triggered by syndepositional boundary fault activity influences the geomorphology, which further controls master drainage system sites, sediment entry points, and sand body dispersal patterns (Qi 2007).
The sampling of surface waters is usually done not directly after the application of pesticides, when the highest entries by drift are expected to occur or after rain events, when the highest entries via runoff or drainage are generally occurring [5, 6].
This drainage system may be the port of entry for ocular pathogens coming from the respiratory tract or the mouth.
The percutaneous entry sites of the catheters and drainages were examined and cared for, every 24 hours, by the ICU nurse assigned to the patient.
The techniques of stress relief mining in low-permeability coal seams and pillarless gob side retained roadway entry using Y-type ventilation and gas drainage systems were developed to control gas outbursts and applied successfully.
Additionally, a significant correlation was found between CBZ and DCL, suggesting similar entry characteristics into wastewater and a similar behavior in urban drainage system.
Patients with pathologically documented lung cancer, who had undergone pericardial drainage for clinical MPE (moderate to large accumulation of fluid), were eligible for study entry.
