Asphalt pavement accounts for ~87% of the overall in Korea. However, owing to black surface and extensive cover area, ambient temperature rapidly increases, thereby contributing urban heat island effect. Therefore, materials with modified porosity conditions have been developed; however, studies on heat-related characteristic values such are insufficient. In this study, thermal characteristics ...

The primary goal of this study was to obtain the same performance from an asphalt mixture made using a Marshall impact hammer (MIH) as Superpave gyratory compactor (SGC). This due expense equipment compared with equipment. A wet process used blend CR PG 70-16 asphalt. crushed stone aggregate 19 mm nominal maximum size, and samples were prepared SGC MIH. results show that nine percent determined...

Administration of diethylnitrosamine p.o. to female Sprague-Dawley rats induces hepatocellular lesions antecedent to hepatocarcinoma (altered foci and hyperplastic nodules). We have tested hepatocytes from hyperplastic nodules for their invasiveness in vitro, which is a marker for malignancy. The hyperplastic nodule cells are compared with control liver cells and hepatocarcinoma cells. Control ...

E-cadherin, a member of the cadherin family, plays a major role in cell-cell adhesion of normal epithelium. Recent studies have shown that reduction or loss of E-cadherin expression in carcinomas have some relationship with their clinicopathological manifestation including invasion and metastasis. In the present study, we have established cell clones with different E-cadherin expression from hu...

This research was carried out to assess the effect of aggregate skeleton, temperature variation, and loading duration on resilient modulus asphalt concrete mixtures. Two different gradation methods, i.e., conventional method Bailey gradation, were adopted design skeleton. The these with duration, has not been previously investigated. Modified Marshall Test used determine optimum binder content ...

In order to provide a new method study the migration behavior of coarse aggregates in compaction process asphalt mixtures, “Intelligent Aggregate Attitude Acquisition System (IAS)” is developed based on 3D printing technology and wireless intelligent sensing technology, (IAA)” prepared as acquisition terminal. The Superpave Gyratory Compaction (SGC) test Internet Things (IOT) sensor are combine...

Alkyl-lysophospholipids have been shown to possess antitumoral activity in animal and in human tumors. Among them, racemic 1-O-œtadecyl-2-O-methylglycero-3-phosphocholine (ET-18-OCH3) had an antimetastatic effect in experimental tu mors. We investigated the effect of ET-18-OCH3 on invasion of MO4 mouse fibrosarcoma cells and on cellular activities possibly related to invasion In vitro. Ten /¿...

The National Center f’or Asphalt Trchnolofiy (NCAT) has just complctd two Nation;ll Coopwrrive HicThw:tv Rr<e:lrch Pq!ram (NtHR6) Projects: NCHRP 9-X. “Designing Stone Matrix Asphalt (SMA) Mixtures.” and NCHRP 9-9. “Reilnement of Superpave Gyratory Compaction Procedure.” Dr. Ray Brown. NCAT director. was the p r i n c i p a l invcsti:etor on both pmjects. The fint project on SMA represented ;I ...

A study was made of the effects of 2,3-dimethylmaleic anhydride (DMA), a reagent removing positive charges, on the aggregation and surface charge of embryonic chick neural retina cells. Neural retina cells, recovered from the dissociation procedure, were cultured on a gyratory shaker and the aggregate dimaeters formed in the presence of DMA or DMA-serum dialysate, following DMA-pretreatment, or...

The design of high pressure water jet based polishing equipment and its fabrication conducted in this study is reported herein, together with some preliminary test results for assessing its applicability for HMA surface polishing. This study also provides preliminary findings concerning the test variables, such as the rotational speed, the water jet pressure, the abrasive agent used, and the im...