The extinction spectra and TEM images show that the silver nanoprisms would undergo shape transformation in the presence of 5 × 10 -6 M bromide ions. In this study, HS(CH 2 ) 15 CO 2 H (MHA) were introduced to modify the surface of silver nanoprisms. The MHA-modified silver nanoprisms can prevent the shape transformation in the presence of bromide ions with a concentration as high as 0.1 M. Furthermore, it was found that the etching process on the unmodified silver nanoprisms caused by the bromide ions can be stopped immediately by adding MHA into the colloid solution. However, the rate of the etching process in the initial stage was too fast to be stopped by adding MHA to control the silver colloid with the desired SPR wavelength. PVP-modified silver nanoprisms cannot prevent the shape evolution in high concentration bromide ions, such as 10 -3 M, but can slow down the etching rate. The silver nanostructures with the desired SPR wavelength can be obtained by the following simple method: KBr was added into the PVP-modified silver nanoprism colloid to initiate the shape evolution, and after a period of time, MHA was added to terminate the etching reaction. The PVP-KBr-MHA treated silver nanostructures with various colors produced by this simple method not only have long-term stability stored at room temperature but also can prevent shape transformation in highly concentrated chloride solutions.
Carcinoma showing thymus-like differentiation (CASTLE) is a rare malignant tumor that accounts for 0.1%–0.15% of all thyroid cancers. More than half of the patients have tumor extension to adjacent organs, including the recurrent laryngeal nerve, trachea, and esophagus. The diagnosis of CASTLE is based on histology and immunohistochemistry. A 58-year-old female patient complained of hoarseness for one and half years. Right side vocal cord palsy was diagnosed by fiberscopy. Thyroid sonography revealed right thyroid tumors, which were reported to be papillary thyroid carcinoma through FNAC. Total thyroidectomy with central lymph node dissection was performed. Pathologist found 2 isolated malignancy tumors. One patient in the right thyroid lobe had papillary thyroid carcinoma features. The other extrathyroid tumor seemed to be separated from the first tumor and invaded the thyroid capsule. After multiple immunohistochemical studies, PTC synchronous CASTLE was the final diagnosis. Coexisting PTC and CASTLE is very rare. This is the first report to describe a case showing PTC at first, while subsequent pathologic examination revealed the presence of CASTLE in addition to PTC. Since the prognosis of CASTLE is favorable, the treatment is different from other aggressive thyroid cancers, such as poorly differentiated or anaplastic thyroid carcinoma.
Microplastics are the biggest pollutants in marine ecosystems. Each year, over 8 million tons of plastic enter the oceans. Via microbes, microplastics may transport toxic chemicals into food webs. It is therefore important to create a way to remove microplastics and reduce the impact of microplastics on the ocean’s food web. This paper discusses the plan of using kiln firing, laser firing, pollution control, and green energy production to reuse marine plastics. We used a wood-fired kiln to design a kiln boat. The “Patch” is a large ocean area with trash. The calorific value of plastics is comparable to that of fuels, around 40 MJ/kg. This makes plastic a good fuel for ceramic firing. Based on our Taiwanese invention patent for a laser ceramic firing technique (Taiwan, R.O.C Patent Number: I687394 and I750055), we integrated a variety of ceramic technologies to address the problem of marine plastic pollution. A kiln boat is a good plan. Creating a moveable kiln not only reduces transportation costs but also reuses the calorific value of plastics. This is important in guiding future marine litter research and ocean cleanup management strategies.
Abstract. In industrial design education, design projects are discussed through team cooperation. However, only the discussion outcomes are typically collected. The cooperative relationships among team members are not recorded. This study adopted the idea flow analysis method proposed by Alex "Sandy" Pentland and proposes a mode, denoted as industrial design team idea mode (IDTIM), for analyzing the ideas developed by industrial design teams. Students from a design department at a university were recruited as the research subjects, and these subjects applied two types of discussion mode to execute the experiments. The experiments entailed using a reality mining approach to observe the students' discussions according to five categories of interaction patterns. The IDTIM was applied for executing analytical tasks. The results are as outlined follows:(1) A team with high cooperation performance developed design works with relatively high quality; (2) visualizing the idea flow information facilitated clearly understanding the perspective of student team cooperation; and (3) using the IDTIM technique assisted instructors in effectively instructing team design projects.
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