Microwave amplification via interfering multi-photon processes in a half-waveguide quantum electrodynamics system

We investigate the amplification of a microwave probe signal by a superconducting artificial atom, a transmon, strongly coupled to the end of a one-dimensional semi-infinite transmission line. The end of the transmission line acts as a mirror for microwave fields. Due to the weak anharmonicity of the artificial atom, a strong pump field creates multi-photon excitations among the dressed states. Transitions between these dressed states, Rabi sidebands, give rise to either amplification or attenuation of the weak probe. We obtain a maximum amplitude amplification of about 18 %, higher than in any previous experiment with a single artificial atom, due to constructive interference between Rabi sidebands. We also characterize the noise properties of the system by measuring the spectrum of spontaneous emission

Women with endometriosis have higher comorbidities: Analysis of domestic data in Taiwan

AbstractEndometriosis, defined by the presence of viable extrauterine endometrial glands and stroma, can grow or bleed cyclically, and possesses characteristics including a destructive, invasive, and metastatic nature. Since endometriosis may result in pelvic inflammation, adhesion, chronic pain, and infertility, and can progress to biologically malignant tumors, it is a long-term major health issue in women of reproductive age. In this review, we analyze the Taiwan domestic research addressing associations between endometriosis and other diseases. Concerning malignant tumors, we identified four studies on the links between endometriosis and ovarian cancer, one on breast cancer, two on endometrial cancer, one on colorectal cancer, and one on other malignancies, as well as one on associations between endometriosis and irritable bowel syndrome, one on links with migraine headache, three on links with pelvic inflammatory diseases, four on links with infertility, four on links with obesity, four on links with chronic liver disease, four on links with rheumatoid arthritis, four on links with chronic renal disease, five on links with diabetes mellitus, and five on links with cardiovascular diseases (hypertension, hyperlipidemia, etc.). The data available to date support that women with endometriosis might be at risk of some chronic illnesses and certain malignancies, although we consider the evidence for some comorbidities to be of low quality, for example, the association between colon cancer and adenomyosis/endometriosis. We still believe that the risk of comorbidity might be higher in women with endometriosis than that we supposed before. More research is needed to determine whether women with endometriosis are really at risk of these comorbidities

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Measurement of the top quark mass using charged particles in pp collisions at root s=8 TeV

Peer reviewe

Discutindo a educação ambiental no cotidiano escolar: desenvolvimento de projetos na escola formação inicial e continuada de professores

A presente pesquisa buscou discutir como a Educação Ambiental (EA) vem sendo trabalhada, no Ensino Fundamental e como os docentes desta escola compreendem e vem inserindo a EA no cotidiano escolar., em uma escola estadual do município de Tangará da Serra/MT, Brasil. Para tanto, realizou-se entrevistas com os professores que fazem parte de um projeto interdisciplinar de EA na escola pesquisada. Verificou-se que o projeto da escola não vem conseguindo alcançar os objetivos propostos por: desconhecimento do mesmo, pelos professores; formação deficiente dos professores, não entendimento da EA como processo de ensino-aprendizagem, falta de recursos didáticos, planejamento inadequado das atividades. A partir dessa constatação, procurou-se debater a impossibilidade de tratar do tema fora do trabalho interdisciplinar, bem como, e principalmente, a importância de um estudo mais aprofundado de EA, vinculando teoria e prática, tanto na formação docente, como em projetos escolares, a fim de fugir do tradicional vínculo “EA e ecologia, lixo e horta”.Facultad de Humanidades y Ciencias de la Educació

Digital Marketing Business Model of Mobile Devices - A Case of French Company Drcom

從智慧型手機與平板電腦問市以來，移動式裝置的應用創造了人類生活的許多可能性，各類創新的商業模式應運而生。在即將邁入物聯網的未來，除了智慧型手機和平板電腦兩類移動式裝置外，手錶或眼鏡等生活用品，也都已經在實驗創新的應用，甚至在市面上販售，這些移動式裝置將為數位行銷領域帶來革命，產生新的商機。 本研究的個案公司Drcom，為一家法國的數位行銷及顧問公司，即是透過移動式裝置創造出的新商業模式，在醫療產業中使用E-detailing的方式為客戶提高業務銷售量。研究者透過在Drcom法國總部實習半年的方式，實地參與個案公司日常運作來進行研究。除了描寫Drcom實務上運作的情形外，本研究藉由Business Canvas的模型來分析Drcom的商業模式，架構出Drcom運作的各類商業元素，並描繪彼此間之關係。 最後，研究結論點出Drcom以移動式裝置進行數位行銷獲利的四個關鍵，並且就觀察到的問題，給予個案公司建議。Since smart phones and tablets launched to the market, the various mobile devices applications have changed the imagination and possibilities of human life. As a result, different business models are created. In the near future, the concept of Internet of Things will defineitely bring more impact on digital marketing and business model. Drcom is a digital marketing and consulting company, specialized in pharmaceutical indusrty, and Drcom runs their business, which is e-detailing, through mobile devices. E-detailing is an efficient and effective business solution to sales in pharmaceutical industry. The researcher conducted the research by half year internship in person, and anlyzed the company by Business Canvas to clarify how the business model works and the relationship between business elements. Lastly, the research comes to a four key factors concultion regarding how Drcom runs business through mobile devices, and finally would end up with several suggetions

Evaluation of Test Method of Indoor Air Cleaners

現在歐美廣泛使用的空氣清淨機效能測試方法：ANSI/AHAM AC-1-2006，為美國國家標準協會/美國家電製造商協會（ANSI/AHAM）於2006年所公佈並以CADR（Clean Air Delivery Rate，CADR）值做為空氣清淨機效能的評估指標。在本研究中，將對AC-1-2006現行方法中測試條件的合理性進行評估，考量不同的微粒產生條件以及不同大小及洩漏量的測試空間、微粒量測儀器其與空氣清淨機擺設之相對位置對於室內空氣清淨機的評估指標CADR值的影響。實驗結果將有助於建立一個更完備的空氣清淨機效能評估測試方法，並增加其評估結果的可信度，提供給消費者和製造商參考。 本實驗結果顯示，微粒在室內空間的衰減率與其粒徑大小有關，在0.3μm左右的微粒有最低的自然衰減率。在標準測試空間的環境下，改變微粒量測儀器及待測空氣清淨機之相對位置對衰減率量測並無影響。過高的微粒起始濃度會因膠結作用而低估CADR值，當起始濃度＜105 #/cm3時膠結作用趨於不顯著。以小型測試空間是可行的，但需在系統洩漏造成影響前進行CADR計算。測試空間其洩漏量愈大時空間內微粒濃度愈早與外界達到平衡因而使得微粒的衰減曲線提早產生偏斜，若涵蓋到計算時間內會造成微粒衰減率的低估。所測試之空氣清淨機，當提升操作風量時CADR值增加，能量的消耗亦隨之增多。若考量單位能量消耗可得之CADR值則需考慮空氣清淨機之風扇設計。Indoor air cleaners are commonly used as an adjunct to source control and ventilation. In ANSI/AHAM AC-1-2006 (Method for Measuring Performance of Portable Household Electric Room Air Cleaners), Clean Air Delivery Rate (CADR) is a measure of the appliance’s ability to reduce aerosol particles in the 0.10 to 11 μm size range. In the present study, the effects of test chamber size, aerosol size (distribution), aerosol number concentration, position and flow rate of aerosol spectrometer, and leak rate of the test chamber on the CADR measurements were investigated. Two types (ESP and filter) of commercially available indoor air cleaners were tested in a standard certification chamber, and a chamber only 1/8 of the volume. Polydisperse aerosol particles were generated using a constant output aerosol generator and an ultrasonic atomizer. Aerosol outputs from both generators were then neutralized by using a radioactive source (Kr-85) to neutralize the aerosol particle to the Boltzmann charge equilibrium. The main aerosol size-spectrometers were a Scanning Mobility Particle Sizer and an Aerodynamic Particle. The background decay rates were measured by using real time aerosol instruments and a Mini Infra-Red Analyzer (MIRAN) was used when SF6 was the test agent. The results showed that CADR value is a function of aerosol size. The ESP- and filter-type air cleaners had significantly different characteristic CADR curves. In general, ESP air cleaner performed better in aerosol collection, air resistance, and power usage. The relative location and orientation of the air cleaner and aerosol spectrometer in the test chamber had almost no effect on the CADR measurements. The measured CADR values decreased with increasing aerosol number concentration apparently due to coagulation effect during the natural decay measurement. The coagulation effect became less significant if aerosol number concentration was lower than 1.0×105 #/cm3. Use of smaller test chamber is possible. However, only the data collected before infiltrated aerosols became significant should be used for calculating the CADR value. Room air cleaners with multi-level performance fan settings normally delivered higher CADR when operated under higher air cleaning mode setting, but not necessary the CADR/watt value, probably due to the difference in fan performance curve.目錄 I 圖目錄 II 摘要 IV Abstract V 一、 研究背景與目的 1 1.1研究背景 1 1.2研究目的 1 二、 文獻探討 3 2.1室內空氣污染物的來源與種類 3 2.2室內空氣污染物的控制 9 2.3空氣清淨機的種類 11 2.4現行空氣清淨機評估方法回顧 18 2.5 ANSI/AHAM AC-1-2006家用室內空氣清淨機評估方法簡述 20 三、 研究方法 22 3.1實驗系統架構 22 3.2實驗儀器及材料 22 3.3實驗方法 24 四、 實驗結果與討論 25 4.1 待測空氣清淨機不同風量之CADR 25 4.2 微粒採樣儀器其流量對微粒衰減的影響 25 4.3 測試空間內器材不同擺放位置的影響 25 4.4 起始濃度對CADR的影響 25 4.5 粒徑與微粒自然衰減率之關係 26 4.6 不同CMD的CADR量測 26 4.7 二種不同型式的空氣清淨機之測試比較 27 4.8 改變測試空間大小之CADR測試 27 4.9 測試空間內微粒數目衰減情況的模式模擬 28 4.10 測試空間不同洩漏程度對微粒衰減率的影響 30 五、 結論與建議 31 參考文獻 3

The design and application of a Web-based self- and peer-assessment system

[[abstract]]This study describes the web-based self- and peer-assessments system, or the Web-SPA, which has been shown to provide teachers with a flexible interface with which to arrange various self- and peer-assessment procedures. Secondly, this study examines the effects of the application of the progressively focused self- and peer-assessment (PFSPA) procedures that are made available with the Web-SPA. In an evaluative study with 76 third-graders (14 or 15 years old) of junior school, it has been found that the upon completion of the PFSPA activities, the students demonstrate greater objectivity in their self-assessment scores; it has also been shown that significant consistency is found between the students’ self- and peer-assessments results and that the assessment results of teachers. Furthermore, the quality of the students’ works improved after the assessment activities.