D. Allen – författare

High resolution nuclear magnetic resonance (NMR) of liquid fuels has provided valuable information on the molecular structures present in these fuels. The chemical insight gained through NMR studies has the potential to enhance significantly the development of processes for the utilization of fossil energy. For this potential to be fully realized, users of NMR information must be able to communicate effectively with NMR experts. Conversely, NMR experts must understand the type of information that users will attempt to derive from their spectra. The goal of this book is to strengthen the lines of communication between NMR experts and users in the area of NMR of liquid fuels.The book comprises two parts. The first part presents elements of relevant NMR phenomenology, including a definition of the most important NMR parameters, an introduction to Fourier transform NMR and a discussion of newer pulse techniques. Sufficient background material is presented to enable the reader to follow such techniques as spin echo, two-dimensional and polarization transfer experiments. These techniques are illustrated by extensive examples derived from fuel chemistry. The second part of the book addresses the interpretation of NMR spectra and is based, to a very large extent, on the work of the authors who have used NMR in a variety of applications in fossil fuels. This part describes in detail the three basic methods for interpreting NMR spectra of liquid fuels: average structural parameter calculations, average molecule construction and functional group analysis. The use of NMR in engineering calculations is also presented and should be particularly useful to those interested in processing of fossil fuels. Extensive examples are drawn from petroleum, shale oils, coal liquids and model systems. Computer programs for performing the characterizations from the spectra are provided.The book will appeal to a wide range of professionals. With its emphasis on applications, it will be of particular interest to those who use NMR to characterize liquid fossil fuels or those who provide NMR assistance to fossil fuel scientists and technologists.

A chance moment. A snow storm. And the gift of a new beginning.Tristan is ready to party and ring in the New Year by kissing his soon-to-be girlfriend, Julie. The only bad note in his rocking night is the growing snow storm. Outside his apartment, he's almost hit by Grace, the most beautiful woman with haunting green eyes. She's on her own mission to get home to her grandfather.  In a selfless act reminiscent of the age of knights and chivalry, Tristan vows to get her home...never realizing they are both on a date with destiny and their lives will be forever changed by the SNOW AFTER CHRISTMAS...

I ought to say no, no, no sir… Tori Helpern always wanted to be a music star, just like her hometown hero Tracy Slater. But Tori never quite found her big break and now she works as a music teacher at the same high school she couldn't wait to get away from. Feeling washed up, Tori believes her only taste of fame will come from the solo in the holiday choir. At least I'm gonna say that I tried… Isaac Powell never needed much to make him happy. He has a good job, a nice house, and fond memories of his family growing up. When he joins the holiday choir for something fun to do after work, he doesn't expect to get a solo for the upcoming holiday concert. Nervous about performing in front of a full audience, Isaac asks Tori to help him prepare and she needs to decide whether she should help him succeed or steal the solo away from him.

But if you really hold me tight… Tara Fraser's life is driven by her work at an insurance agency in Chicago. She hasn't been back home in years and has no intention of going back anytime soon. But then her mother calls and convinces her to book a last-minute flight home for the holidays. Within twenty-four hours, Tara finds herself at one of the biggest airports in the country on one of the busiest travel days of the year. All the way home I'll be warm… Peter Helpern has one last freelance photography job in Chicago before he flies back home to spend Christmas with his family. After a late start on the morning he's supposed to fly back home, he barely makes it to the airport in time to catch his flight, only to find a seat next to his old college girlfriend. Tara and Peter quickly resume the bickering they left off years ago, which is only made worse by the unfortunate news the pilot makes: they're snowed in.

From now on your troubles will be out of sight… Lexi Robbins and her fiancé, the wealthy and esteemed Walt, are busy preparing for a Christmas Eve wedding. With all of the wedding decisions being made without her, Walt suggests Lexi decide on the dessert table for their reception. But when she begins to spend time with Jeff at the wedding venue, Lexi begins to wonder if her feelings for Walt are genuine. Have yourself a merry little Christmas… Jeff Stone is at the lowest point in his life. After losing his wife and closing his own business, he's moved back in with his little brother and his wife. At work, his boss tries to help him out by giving him an opportunity to help Lexi finalize her wedding plans and he soon discovers that he's drawn to her more than he wants to be. Lexi and Jeff quickly develop feelings for each other, but Lexi's wedding stands in the way. Should she walk away from a comfortable life or run away with Jeff to chase their dreams?

To face unafraid… Steph Chester has had enough at work. Partnered with a deadbeat and having to carry the workload of a project they're working on, she's called into her boss's office and is suddenly being accused of not doing any of the work. Frustrated, Steph spontaneously books a trip to a nearby small town to spend the holidays and escape the pressures of her life. The plans that we've made… Carson Andrews has just been fired. Again. Working as a realtor, he is tired of dealing with picky clients who blame him for their inability to decide on a house. To make matters worse, this will be the first Christmas he is spending alone since his grandfather passed away in the spring. In an effort to escape his life, Carson books a trip to a charming town near where his grandfather used to take him to get their Christmas tree every year. Little do either of them know, but Steph and Carson have inadvertently booked the same house for the holidays. Not wanting to return to their hectic lives, they agree to try to share the rental. But living with a total stranger is harder than either of them realizes. Especially when feelings start developing.

The Small Town Christmas series follows couples as they find love at Christmas time. This bundle contains A Christmas Reunion, A Christmas Charade, and A Christmas Spark, books 1, 2, and 3 in the Small Town Christmas series. A Christmas Reunion (Book 1) I'll be home for Christmas…  Tracy Slater may be a successful pop star, but fame and fortune isn't everything she thought it'd be. Under the thumb of a husband who is growing steadily more abusive, she's decided her marriage is over. She just needs to make it through one more trip home for the holidays with him before she's free.  If only in my dreams…  Stephen Austin worked hard to become the successful novelist he's always wanted to be. So why isn't he happy? And why does he feel so lonely? Then he runs into his old girlfriend, the one he thought he had lost forever.   Tormented by the mistakes of their past, Stephen sees his reunion with Tracy as a second chance. But does she feel the same way? A Christmas Charade (Book 2) It's time I found myself... Charlotte Barlow has steadily been working her way up to her dream job at a magazine in New York City. But her success comes at a price: she's the only one single in her family, despite her mother's hope that she settle down. Totally surrounded in your circles... Kaden might be the new guy at the magazine, but it doesn't take long for Charlotte to catch his eye. When the editor-in-chief pairs them together for a project, Kaden sees it as the perfect opportunity to ask her out. Only, Charlotte has other ideas. Desperate to please her family for just one year, Charlotte asks Kaden to pose as her boyfriend on her trip home. Faced with another lonely Christmas, Kaden agrees. Among the decorations and home-cooked meals, it doesn't take long for feelings between them to develop. Are they real or just a product of the charade? A Christmas Spark (Book 3) Please come home for Christmas... Tanya Bennett is still feeling the effects of her mental breakdown from last year. She lost a lot of loved ones in a short period of time, but most notably her son, who she can't see without supervision. She's doing the best she can to keep it together, but a bad reputation is hard to overcome. Her only hope at a happy Christmas is how well her upcoming court date goes. If not for Christmas, by New Year's night... Adam Allen is still trying to figure out how to co-parent with his controlling ex, who is always quick to criticize his parenting. It doesn't help that he's so forgetful and he works a lot, but at least he's trying. It's hard for him to find someone who can relate, until he meets Tanya. Adam feels an instant connection with her, but her episode the year before has ripple effects that could alter both of their relationships with their kids.

But the prettiest sight to see… Cameron Kutcher is a single mom, just trying to make Christmas happen for her daughter. With her contracting business slowing down for the winter season and only working a couple nights a week at a local brewery, she worries that her daughter will wake up to nothing from Santa under their tree. Is the holly that will be, on your own front door… Luke Branson has been burned before by contractors who didn't do a good enough job. As a real estate investor, he has a certain standard to match that will give him the biggest return on investment. But his latest project is more personal: his family's former home that he recently reacquired. One that he has a very specific—very nostalgic—vision of what he wants it to look like. When Luke promises his parents that he'll have the house ready in time to celebrate Christmas with his family, he hires Cameron online and is surprised to see that she's a woman—one who has a strong opinion about Luke's so-called "e;standards."e; Meanwhile, Cameron is happy to accept a steady job through the holidays. And as the two of them work closely on the project, they soon realize that there is more developing than just real estate.

Please come home for Christmas...Tanya Bennett is still feeling the effects of her mental breakdown from last year after her parents died. She lost a lot of loved ones in a short period of time, but most notably her son, who she can't see without supervision. With some help from her friends, she's back on the right track with a new job and volunteering with the school play her son's in. But a bad reputation is hard to overcome and whether she can spend Christmas with her son hinges on how well her upcoming court date goes.If not for Christmas, by New Year's night...Adam Allen is still trying to figure out how to co-parent with his controlling ex, who is always quick to criticize his parenting. It doesn't help that he's so forgetful and he works a lot, but at least he's trying. It's hard for him to find someone who can relate, until he meets Tanya. Adam feels an instant connection with her, but her episode the year before has ripple effects that could alter both of their relationships with their kids.

Jessie moved back to picturesque Montana Beach after a heartbreaking split with her ex. She's since thrown herself into her grandparent's inn, which has been struggling financially thanks to the town having seen better days. With few options available, Jessie considers accepting a developer's offer to buy Montana Manor, seeing it as a way to save her family's legacy, until she learns that he wants to tear it down.Meanwhile, Mason's tired of working at his father's advertising firm in New York City, although his father wants him to become his replacement. Unsure if that's the course he wants his life to take, Mason escapes to Montana Beach and the only inn in town to consider the proposal. But after he meets Jessie, he seems to gain only another reason not to take up his father's offer.When Mason offers to help Jessie launch a campaign to save Montana Manor, the two quickly find themselves relying more and more on each other. But summer doesn't last forever, and Mason's stay is coming to an end.