Thank you, Jim. Hopefully, those of you on the call will appreciate the exceptional breadth of Jim's experience, especially as it pertains to the industrial burner space. He really has done at all. From studying, to implementing, to selling, to managing, we are really truly excited to have Jim on board. In light of all the management transitions in 2018, I am happy to report it does not distract our team from making important progress. But as I said before, much of this progress does not translate into sales yet. But we believe that these achievements form an important foundation for future revenue. In the past year, we successfully completed follow-on installations in our OTSG, or once through stream generator, as well as in flare segments. We believe that both categories primarily located in Southern California remain fertile for future Duplex adoption, pending the anticipated clarification of environmental regulations. We developed successfully installed and are operating a larger scale Duplex plug and play burner at a Southern California refinery. Not only in this refinery very pleased with the performance of Duplex, but they are more than willing to allow perspective ClearSign customers the ability to see the units in action. In fact, Jim will be attending a demonstration for a group there on Friday. We reached a key R&D milestone in our work developing a pre-engineered firetube boiler burner, reaching a stretch goal and the industry first performance of NOx emissions of five parts per million at 3% oxygen concentrations. As we have mentioned in the past, the market for firetube boiler is perhaps the largest vertical that Duplex can address. I'm also happy to report that our first announced super major Exxon has chosen a site for our initial installation. I should also add that many investors, including myself, underestimated the length and depth of pre-evaluation and engineering that a company like ExxonMobil needs to go through prior to installing even a small number of burners. But we must also remember that a small number of burners is not their goal. While we can do everything in our power to ensure that we immediately provide the sponsors to all their requests and questions, we do not have control over the speed, the timing or the protocol of Exxon's and general processes for doing business with new vendors. We also recently announced that final approvals for World Oil to be a partner on the previously announced South Coast air quality management district project that will be jointly funded by World Oil, the district and ourselves. The project's purpose is to demonstrate clear Duplex technology as a solution to achieve ultralow emission levels in refinery process heaters and other types of fired equipment. Again, many investors anticipate that we would be further along given that this partnership with a different company was initially announced in the fall of 2017. With the first company backed out for reasons completely unrelated to Duplex, not only did we need to find and qualify World Oil as an appropriate partner but essentially the approval process from the air quality district has to be duplicated with committee and then the full board approval being driven in large part by the different meeting schedules with the respective entity. The paraphrase the question from our last call asking whether having a regulatory body invest in the new technology, questioning whether that was a big deal, the answer is an emphatic yes. The aforementioned Friday plug and play demonstration that Jim is attending is for the staff for the district at that existing installation. The final project I will direct the comment on today is the work we've been doing for a major Chinese heating district customer. I don't think I need to review how larger potential market China could become for ClearSign nor why having the district heating market would be an ideal entrée for the firm. But one of the retrofit challenges that has faced ClearSign since we started the project was the necessity of modifying an extremely large 100 million BTU per hour European swirl-stabilized burner that’s already installed at the heating district and how we best can achieve a smooth and consistent transition with our ClearSign technology from this European deep burner mode to the Duplex mode. Since this is a retrofit project, which in the Chinese burner boiler segment will be the majority of our business, it is a critical importance for us to develop a way to transition in a reliable, cost effective, replicable and automated manner. Not only is this boiler virtually twice as large as anything else we have done before, but its specs and geometry were unique as well as being halfway around the globe from us. I'm pleased to report that this past November 2018, we were able to overcome certain technological challenges posed by the boiler and successfully transitioned from the traditional burner mode to our Duplex mode. From November 18th until now, our ClearSign technical team has developed and upgraded the ClearSign's system. And in January of, this past January of '19, we again successfully demonstrated to the heating district senior management successful transitioning of an upgraded version of our Duplex system using a ceramic material, the same material successful used in our plug and play offerings. We have a team in place in China as we speak working on further optimizing the Duplex system. Closer to home, we are constantly monitoring the changes being proposed by the two major California Air Quality districts and continue to believe that the eventually promulgated rules will benefit the adoption of Duplex. Looking forward, we remain encouraged by continued commercial interest, which we expect will spark brighter as the aforementioned regulatory class clear. In light of Jim's recent arrival and expertise in this area, however, it's only appropriate for us to afford him the time to get a handle on all our active commercial discussions before providing investors with an updated outlook on the size of the market and probabilities. All that being said, I speak for the entire board and company when I say we remain encouraged about the next phase of growth for ClearSign in 2019 and beyond, especially since we're entering the year with a refresh and committed board, an experienced CEO with a track record of scaling burner businesses worldwide and sufficient capital to allow for a comprehensive preview and revision of perfect strategies, priorities with a goal to maximize shareholder value. With that, I'd like to open up the call to Q&A. Operator, can we please open up the call to questions?