An automatic triple-ring infiltrometer was developed using a set of pre-set sensors and transducer (AP 403, AP 404, 405 406, RAP001 RAP002). The aluminum probe were graduated arranged in series to monitor the rate at which water is infiltrating into soil layer. working principle six probes with depth calibration 1.0mm, 26.7 mm, 12.4 12.7 respectively. result obtained showed strong agreement coe...

Though it is vital to estimate infiltration as one of the key factors in effective management of water resources, only few studies have been carried out either to determine the infiltration or to compare the performance of infiltration models for coarse textured soils. Thus, the present study was conducted to accomplish two objectives. First to estimate the Horton’s infiltration model parameter...

abstract infiltration is one of the most important phenomena which is affected by the soil physical and hydraulic characteristics. measurement of infiltration needs the high cost and is time consuming, therefore estimation of infiltration is necessary. also, due to variability of soil moisture, it is important to determine the appropriate model for the estimating the infiltration rate. the pres...

background & importance: disc herniation is defined as the prolapsed of material disc into the spinal canal. if the disc fragment is free in spinal canal, it is called sequestration disc fragment. occasionally, alteration in sequestration disc fragment makes the diagnosis of the disc herniation, challenging. case presentation: we reviewed a rare case of the cervical sequestrated disc herniation...

even though intervertebral disc degeneration can be found in the natural course of alkaptonuria, detection of the disease by black disc color change in a patient without any other presentation of alkaptonuria is an exceptionally rare condition. we have reported a very rare case of alkaptonuria presented with low back pain and steppage gait in a 51-year-old male with a complaint of chronic low-b...

Permeable pavements are considered to be one of the effective measures for LID (i.e. Low Impact Development) and SUDS Sustainable Urban Drainage System) globally. The major three types permeable (a) pervious concrete (PC), (b) previous asphalt (PA), (c) interlocked paver (PICP). performance all is satisfactory at start service life but greatly reduced if not maintained on time. Considering long...

Wildfire can impact soil-hydraulic properties by reducing saturated hydraulic conductivity and sorptivity, making recently burned landscapes prone to debris flows flash floods. The post-fire hazard window range from years decades. In Northern California, where wildfire frequency is steadily increasing, the recovery wildfires unknown. Following October 2017 Nuns Tubbs fires in Bay Area of we est...

abstract   background: far lateral discal herniation is an uncommon disorder and is difficult to assess by physical examination alone. this study is designed to define clinical and epidemiological findings and to establish the indications of surgical and medical treatment for flldh.   methods: between 2000 and 2005, a total of 2035 patients with lumbar disc herniation underwent surgical discect...

conclusions in this study, we found that in spite of previous beliefs, discopathies were not common etiologies of lbp. thus, even in patients with proven ldh by imaging studies, the physician should perform a thorough evaluation for other causes of lbp to avoid unnecessary lumbar surgeries. results in our study, among 1250 patients with proven ldh by mri, 500 patients (40%) had chronic lbp and ...