An ammonia detecting mechanism for organic transistors as revealed by their recovery processes

Nanoscale ◽  
2018 ◽  
Vol 10 (18) ◽  
pp. 8832-8839 ◽  
Author(s):  
Xu Zhou ◽  
Kaifeng Niu ◽  
Zi Wang ◽  
Lizhen Huang ◽  
Lifeng Chi
Keyword(s):  
Recovery Process ◽  
Organic Transistors ◽  
Recovery Processes ◽  
Organic Transistor

An ammonia detecting mechanism that involved pre-doping and de-doping was revealed by the recovery process of an organic transistor.

Physical Insights from Frumkin Isotherm Applied to Electrolyte Gated Organic Transistor as Protein Biosensors

2021 ◽  
Author(s):  
Pamela Allison Manco Urbina ◽  
Marcello Berto ◽  
Pierpaolo Greco ◽  
Matteo Sensi ◽  
Simone Borghi ◽  
...  
Keyword(s):  
Organic Transistors ◽  
Label Free ◽  
Sensor Signal ◽  
Frumkin Isotherm ◽  
Organic Transistor ◽  
Dose Curve

Label free biosensors based on electrolyte gated organic transistors (EGOTs) are ultra-sensitive and versatile sensing devices. The dose curve represents the change of the sensor signal as a function of...

scholarly journals Progress and Challenges in Commercialization of Organic Electronics

MRS Bulletin ◽  
2008 ◽  
Vol 33 (7) ◽  
pp. 653-662 ◽  
Author(s):  
Yueh-Lin Loo ◽  
Iain McCulloch
Keyword(s):  
Organic Electronics ◽  
Light Emitting Diode ◽  
Device Fabrication ◽  
Organic Photovoltaic ◽  
Organic Transistors ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Performance Requirements ◽  
Organic Transistor ◽  
Organic Light

AbstractThe field of organic electronics is entering its commercial phase. The recent market introduction of the first prototypes based on organic transistors fabricated from solution is set to augment the existing market presence of organic light-emitting diode applications. Organic photovoltaic products are not far behind. In this article, we provide a brief overview of these devices, with our main focus being organic transistor applications. In particular, we examine some of the key performance requirements for working devices. We also review some of the important advances in semiconductor design and device fabrication techniques and discuss some of the technical challenges that remain in the optimization of next-generation products.

Performance and inhibition recovery of anammox reactors seeded with different types of sludge

2011 ◽  
Vol 63 (4) ◽  
pp. 710-718 ◽  
Author(s):  
S. Q. Ni ◽  
J. Meng
Keyword(s):  
Nitrogen Removal ◽  
Granular Sludge ◽  
Recovery Process ◽  
Nitrogen Loading ◽  
Anaerobic Sludge ◽  
Anammox Bacteria ◽  
Recovery Processes ◽  
Anammox Activity ◽  
Different Types ◽  
Anaerobic Sludge Blanket

In order to study the performance, inhibition and recovery processes of different types of anammox sludge, three up-flow anaerobic sludge blanket reactors were inoculated with flocculent sludge, granular sludge, and cultured inactive methanogenic granules. During stable period, with nitrogen loading rates of 0.9–1.1 kg/m3/d, the total nitrogen removal efficiencies of these reactors averaged at 86.5%, 90.8% and 93.5%, respectively. The kinetics study indicated that the reactor seeded with cultured inactive methanogenic granules possessed the highest nitrogen removal potential, followed by the granular anammox reactor and the flocculent anammox reactor. The study suggested that a concentration as high as 988.3 mg NH4+-N/L and 484.4 mg NO2−-N/L could totally inhibit granular anammox bacteria and result in a inhibition of 50% flocculent anammox activity. In addition, reactors seeded with flocculent sludge and anammox granules could be fully recovered by decreasing their influent substrate concentrations. However, the decrease of influent substrate concentration for the reactor with cultured inactive methanogenic granules could only restore about 75% of its bacterial activity. In this study, anammox bacteria purity was the major factor to evaluate the recovery ability in comparison with sludge type. Free ammonia was a more appropriate indicator for the anammox recovery process compared to free nitric acid.

scholarly journals Building trust and recovery capital: the professionals’ helpful practice

2018 ◽  
Vol 11 (2) ◽  
pp. 76-87 ◽  
Author(s):  
Alain Topor ◽  
Lisa Skogens ◽  
Ninive von Greiff
Keyword(s):  
Mental Health Problems ◽  
Specific Treatment ◽  
Recovery Process ◽  
Treatment Interventions ◽  
Content Type ◽  
Societal Factors ◽  
Recovery Processes ◽  
Personal Capital ◽  
Recovery Capital ◽  
Relationship Capital

Purpose The possibility of recovery for persons with co-occurring addiction and mental health problems has been contested. Though, recent studies show that recovery might happen, but without connection to specific treatment interventions. The purpose of this paper is to analyse professionals’ perceptions of their contribution to improvement. Design/methodology/approach In all, 15 experienced professionals were interviewed. The interviews were analysed using thematic analysis. Findings Recovery processes were dependent of the persons’ access to different forms of recovery capital (RC). Lack of RC was often associated with lack of trust in one’s self and others (identity and personal capital). Professionals had to be accepted as trustful agents through co-creating changes in the person’s life. Trusting a professional might be a basis for trusting one’s self as an agent in one’s recovery process and develop a social network (identity and relationship capital). Other aspects stressed by the professionals were to manage their own fragmentized organisations and societal shortcomings (economic capital). Practical implications Recovery has been described as a profoundly individual journey. However, it is also deeply social, involving other persons and contextual factors. Focusing on just one level might counteract the complex work behind double recovery. Originality/value Improvement was described as dependent on the presence of personal, inter-personal, organisational and societal factors. The findings give a deep and concrete understanding of the process constituting the development of a working alliance and its dependence on factors outside the direct relation between the staff member and the person.

A Mathematical Model to Predict Solvent/Steam Flashing in Pure Solvent or Solvent/Steam Coinjection in Horizontal Producers

2021 ◽  
Author(s):  
Mazda Irani ◽  
Nasser Sabet ◽  
Farzad Bashtani ◽  
Kousha Gohari
Keyword(s):  
Flow Control ◽  
Latent Heat ◽  
Relative Permeability ◽  
Recovery Process ◽  
Liquid Pool ◽  
Solvent Injection ◽  
Recovery Processes ◽  
Flow Control Devices ◽  
Pure Solvent ◽  
Control Devices

Summary Although the steam assisted gravity drainage (SAGD) process is still the preferred thermal-recovery process method for Athabascan deposits in Alberta, Canada, the interest in solvent-based techniques is growing due to reduce greenhouse-gas (GHG) emissions and water treatment concerns. In SAGD process, the thermodynamic trapping or subcool trapping is quite efficient due to strongly dependency of bitumen viscosity to temperature. As Irani (2018) discussed subcool trapping for solvent applications such NsolvTM recovery process is inefficient due to week dependency of solvent viscosity to temperature. Other factor that effects the efficiency of the thermodynamic trapping is that the pure solvent injection recovery processes are operated at low pressure and it is not large temperature window for operators to apply large subcools. Such challenges make the pure solvent injection recovery processes a perfect case for deployment of Flow-Control-Devices (FCDs). FCDs have demonstrated significant potential for improving recovery in SAGD production wells. FCD experience in SAGD has been primarily positive and most producers performed better with FCDs. Application of FCDs are even more important in pure-solvent injection recovery processes due to large amount of solvent in the liquid pool and also low latent heat of solvent in comparison of water. With FCDs, the draw-down pressure is typically higher, resulting in flashing near the well bore, which is largely correlated to latent heat of the main fluid in the liquid pool. The flashing creates either steam or vapour breakthrough that causes the reduction in the relative permeability of the liquid phase. Such mobility reduction creates new equilibrium that stabilizes at lower rates. Such new equilibrium analysis is conducted by forcing a new temperature gradient to the model. Such condition creates an environment that leads into extensive solvent-breakthrough called solvent-coning in this study. The main output of such analysis is the produced solvent gas-fraction produced at the sand-face. The gas-fraction is an important input for the flow control devices (FCDs) especially at subcools close to the zero, as it controls its behavior. EoS model is also created and simplified to be possible to used in defining different equilibrium conditions. This type of analysis can help the operators evaluate the effectiveness of different type of FCDs, whether they are primarily momentum- or friction-style devices for application of the pure solvent injection recovery processes. This study is the first of its kind that couple the EoS and Darcy flow in the liquid pool. The model includes all the factors into a liquid-relative-permeability, and limitation of the liquid flow into producer is modeled by Darcy flow and reduction of such relative-permeability.

Hurricane Harvey's Aftermath

2020 ◽  
Author(s):  
Kevin M. Fitzpatrick ◽  
Matthew L. Spialek
Keyword(s):  
Southern Hemisphere ◽  
Gulf Coast ◽  
Recovery Process ◽  
Texas Gulf Coast ◽  
Recovery Processes ◽  
Hurricane Season ◽  
Return Home ◽  
Race And Place ◽  
Coastal Residents ◽  
Insight Into

Early June begins the Southern Hemisphere hurricane season. Stretching into November, it can often be a time of weary waiting and cautious optimism for coastal residents. Clear skies and calm seas can quickly give way to disaster. On August 27, 2017, a Category 4 hurricane (Harvey), targeting the Texas Gulf Coast and packing winds of over 130 miles per hour, wreaked havoc and created a path of destruction with bands of rain that seemingly went on forever. Lives were lost, neighborhoods devastated, resiliency cracked; yet people continued helping each other, and the recovery process began. Fitzpatrick and Spialek tell a complicated story of heartache, destruction, resiliency, recovery, and hope. Through over 300 interviews from Hurricane Harvey survivors living along the Texas Gulf Coast, their stories tell an all-too-familiar tale. Interviewing survivors with diverse displacement experiences, the authors create a narrative around who, what, where, and why residents sought refuge in shelters, hotels, and other alternative locations. Some residents have since moved back. Others have been rebuilding for months and even years. And there are some residents who will never return home. Their stories, circumstances, and insight into the recovery processes are all very different, yet intimately tied together through an understanding of how race and place come to define their experiences. This book tells survivors’ stories while emphasizing that who those survivors were and where they lived had a major impact on these tales of destruction, resiliency, and recovery.

scholarly journals Recovery processes among young adults treated for alcohol and other drug problems: A five-year follow-up

2020 ◽  
Vol 37 (4) ◽  
pp. 338-351
Author(s):  
Lisa Skogens ◽  
Ninive von Greiff
Keyword(s):  
Young Adults ◽  
Recovery Process ◽  
Individual Treatment ◽  
Health Issues ◽  
Recovery Processes ◽  
Client Group ◽  
Human And Social Capital ◽  
Drug Problems ◽  
Alcohol And Other Drugs

Aim: Studies on recovery from alcohol and other drugs (AOD) among young adults are scarce. In the present study, young adults, previously interviewed with a focus on their recovery process shortly after they completed treatment, were re-interviewed five years later focusing on their recovery process during the last five years in relation to their former AOD problems, other problems and processes of change. Methods: Twenty-one young adults were interviewed: 16 women and five men aged between 25 and 33 years. After transcribing the interviews, the material was analysed thematically. Results: Three overall themes emerged: previous problems, mental illness and the search for identity. The results were discussed in relation to recovery capital, primarily focusing on human and social capital. The results indicate that the group in focus often needs professional support for mental health issues in order to reach a stable recovery. Conclusions: Since the problems described were heterogeneous, this client group might benefit from individual treatment and extended support after treatment. Further, the results indicate that the established period of five years for a stable recovery might need to be extended for young adults.

Who We Are

2020 ◽  
pp. 26-46
Author(s):  
Kevin M. Fitzpatrick ◽  
Matthew L. Spialek
Keyword(s):  
Data Collection ◽  
Recovery Process ◽  
Methodological Framework ◽  
Online Surveys ◽  
Specific Data ◽  
Face To Face ◽  
Secondary Sources ◽  
Recovery Processes ◽  
Before And After

Chapter two describes the methodological framework and design for this project. The authors present a discussion of the methods used to select persons for both face-to-face interviews and online surveys, along with the follow-up strategies used to talk with civilians and organizational officials involved in the recovery process. This chapter discusses both the approach to the data collection, as well as what specific data the authors were interested in acquiring as it pertained to understanding how displacement and recovery processes varied across individual survivors. Finally, the chapter discusses in detail the numerous strategies employed to tell the survivors’ stories—pictures, maps, tables, charts, and narratives, along with additional data from secondary sources to help characterize the places where survivors were living both before and after the disaster.

scholarly journals What role does employment play in dual recovery? A qualitative meta-synthesis of cross-cutting studies treating substance use treatment, psychiatry and unemployment services

2017 ◽  
Vol 10 (3) ◽  
pp. 105-119 ◽  
Author(s):  
Jeppe Oute Hansen ◽  
Bagga Bjerge
Keyword(s):  
Substance Use ◽  
Design Methodology ◽  
Recovery Process ◽  
Substance Use Treatment ◽  
Dually Diagnosed ◽  
Content Type ◽  
The Road ◽  
Recovery Processes ◽  
Research And Policy

Purpose The role of employment in dual recovery from mental illness and substance use is scarcely addressed in previous studies and a deeper understanding of this issue is needed. The purpose of this paper is to cast further light on the conditions that either facilitate or block the road to employment for dually diagnosed people (DDP) and how these conditions could either promote or hinder recovery. Design/methodology/approach Drawing on the principles laid out by health researchers Sandelowski and Barroso (2007), the study is designed as a qualitative meta-synthesis comprising a systematic literature search, a critical assessment of the identified studies and an integrative synthesis of the articles’ findings. Findings The synthesis outlines that the findings from the seven identified studies show a recovery process in which unemployed, DDP are becoming employed people – or where there is an attempt to restore their status as working persons – and how this process is driven or hindered by personal, interpersonal and systemic facilitators or barriers. Research limitations/implications The synthesis adds nuances to the understanding of employment in dual recovery processes and suggests that unconnected means of, and goals for, intervention among these individuals and systems might reduce the chances of DDP obtaining and maintaining a job. Originality/value The paper calls for more advanced research and policy on the multiple – and often contradictory – aspects of gaining and maintaining employment as part of dually diagnosed persons’ recovery.

scholarly journals MANAGING SERVICE RECOVERY PROCESSES: THE ROLE OF CUSTOMER'S AGE / VARTOTOJŲ AMŽIAUS ĮTAKA PASLAUGŲ VERTINIMUI

2011 ◽  
Vol 12 (3) ◽  
pp. 503-528 ◽  
Author(s):  
Jesús Cambra-Fierro ◽  
Juan M. Berbel-Pineda ◽  
Rocío Ruiz-Benítez ◽  
Rosario Vazquez-Carrasco
Keyword(s):  
Process Management ◽  
Service Providers ◽  
Service Recovery ◽  
Recovery Process ◽  
Effective Management ◽  
Research And Practice ◽  
Recovery Processes ◽  
Front End ◽  
Effective Service

Research and practice show that effective management of service recovery processes boosts customer satisfaction. Under this assumption, the purpose of this paper is to analyze a set of factors which may determine satisfaction with recovery processes and loyalty. We also analyze the role of age as potential moderating. Segmenting customers' samples by age may potentially contribute to more effective service recovery process management. Older customers seem to be more loyal when dealing with service providers than younger customers, while younger customers are more demanding in terms of companies' efforts. Implications for both literature and practice are included at the front-end of the paper. Santrauka Tiek moksliniai tyrimai, tiek ir praktika rodo, kad grąžinimo procesų valdymo veiksmingumas skatina klientų pasitenkinimą. Remiantis šia prielaida, straipsnio tikslas yra išanalizuoti veiksnius, turinčius įtakos klientų pasitenkinimo lygiui ir lojalumui. Taip pat analizuojamas ir vartotojų amžiaus rodiklis, jo potencialo kaita. Atsižvelgiant į tai, klientai buvo sugrupuoti pagal amžių ir buvo analizuojama, kaip vieni ar kiti procesai juos veikia. Atliktas tyrimas parodė, kad vyresnio amžiaus klientai yra labiau ištikimi nei jaunesni, o jaunesni klientai yra reiklesni įmonių teikiamoms paslaugoms.

Sign in / Sign up

Export Citation Format

Share Document