- document
- Lei, B.J. (author), Chang, C. (author), Hendriks, E.A. (author) journal article 2004
- document
-
Chang, X.W. (author), Paige, C.C. (author), Tiberius, C.C.J.M. (author)When processing observational data, statistical testing is an essential instrument for rendering harmless incidental anomalies and disturbances in the measurements. A commonly used test statistic based on the general linear model is the generalized likelihood ratio test statistic. The standard formula given in the literature for this test...journal article 2005
- document
- Chang, Z.Y. (author), Pop, G.M. (author), Meijer, G.M. (author) journal article 2008
- document
-
Huan, Z. (author), Chang, J. (author), Zhou, J. (author)A low-temperature fabrication method for highly porous bioactive scaffolds was developed. The two-step method involved the foaming of tricalcium silicate cement paste and hydration to form calcium silicate hydrate and calcium hydroxide. Scaffolds with a combination of interconnected macro- and micro-sized pores were fabricated by making use of...journal article 2009
- document
-
Chang, C. (author), Borgart, A. (author), Chen, A. (author), Hendriks, M.A.N. (author)This paper proposes an efficient and reliable topology optimization method that can obtain a black and white solution with a low objective function value within a few tens of iterations. First of all, a transformation of variables technique is adopted to eliminate the constraints on the design variables. After that, the optimization problem is...journal article 2014
- document
-
Chang, J.R. (author)This article is a newer version of a paper originally published in the eCAADe 2013 Conference Proceedings Computation & Performance. Hyper-Morphology is an on-going research outlining a bottom-up evolutionary design process based on autonomous cellular building components. The research interfaces critical operational traits of the natural world ...journal article 2014
- document
-
Naddaf Dezfuli, S. (author), Huan, Z. (author), Mol, J.M.C. (author), Leeflang, M.A. (author), Chang, J. (author), Zhou, J. (author)The human body is a buffered environment where pH is effectively maintained. HEPES is a biological buffer often used to mimic the buffering activity of the body in in vitro studies on the degradation behavior of magnesium. However, the influence of HEPES on the degradation behavior of magnesium in the DMEM pseudo-physiological solution has not...journal article 2014
- document
-
Kim, B. (author), Ha, M. (author), Loeff, L. (author), Chang, H. (author), Simanshu, D.K. (author), Li, S. (author), Fareh, M. (author), Patel, D.J. (author), Joo, C. (author), Kim, V.N. (author)Terminal uridylyl transferases (TUTs) function as integral regulators of microRNA (miRNA) biogenesis. Using biochemistry, single-molecule, and deep sequencing techniques, we here investigate the mechanism by which human TUT7 (also known as ZCCHC6) recognizes and uridylates precursor miRNAs (pre-miRNAs) in the absence of Lin28. We find that the...journal article 2015
- document
-
Jiang, J. (author), Chang, Z.Y. (author), Pertijs, M.A.P. (author)This paper presents an energy-efficient readout circuit for micro-machined resonant sensors. It operates by briefly exciting the sensor at a frequency close to its resonance frequency, after which resonance frequency and quality factor are determined from a single ring-down transient. The circuit employs an inverter-based trans-impedance...journal article 2015
- document
-
Chang, L. (author), Hanssen, R.F. (author)Monitoring the kinematic behavior of enormous amounts of points and objects anywhere on Earth is now feasible on a weekly basis using radar interferometry from Earth-orbiting satellites. An increasing number of satellite missions are capable of delivering data that can be used to monitor geophysical processes, mining and construction activities,...journal article 2015
- document
-
Fanzio, P. (author), Chang, Chi-Tung (author), Skolimowski, Maciej (author), Tanzi, Simone (author), Sasso, L. (author)We present here an electrochemical sensor microsystem for the monitoring of pH. The all-polymeric device is comprised of a cyclic olefin copolymer substrate, a 200 nm-thin patterned layer of conductive polymer (PEDOT), and a 70 nm electropolymerized layer of a pH sensitive conductive polymer (polyaniline). The patterning of the fluidic ...journal article 2017
- document
-
Chang, Joonho (author), Jung, Kihyo (author), Lee, W. (author), You, Heecheon (author)The present study developed and tested a new usability evaluation method which considers natural product-use motions. The proposed method measures both natural product-use motions (NMs) and actual product-use motions (AMs) for a product using an optical motion capture system and examines the usability of the product based on motion similarity...journal article 2017
- document
-
Naddaf Dezfuli, S. (author), Huan, Z. (author), Mol, J.M.C. (author), Leeflang, M.A. (author), Chang, Jiang (author), Zhou, J. (author)The present research was aimed at developing magnesium-matrix composites that could allow effective control over their physiochemical and mechanical responses when in contact with physiological solutions. A biodegradable, bioactive ceramic - bredigite was chosen as the reinforcing phase in the composites, based on the hypothesis that the...journal article 2017
- document
-
Heidary Shalmany, S. (author), Merz, Matthias (author), Fekri, A. (author), Chang, Z.Y. (author), Hoofman, Romano J.O.M. (author), Pertijs, M.A.P. (author)This paper demonstrates a micropower offset- and temperature-compensated smart pH sensor, intended for use in battery-powered RFID systems that monitor the quality of perishable products. Low operation power is essential in such systems to enable autonomous logging of environmental parameters, such as the pH level, over extended periods of time...journal article 2017
- document
-
Ye, Xiaotong (author), Leeflang, M.A. (author), Wu, Chengtie (author), Chang, Jiang (author), Zhou, J. (author), Huan, Z. (author)Porous Ti-6Al-4V scaffolds fabricated by means of selective laser melting (SLM),<br/>having controllable geometrical features and preferable mechanical properties, have been developed as a class of biomaterials that hold promising potential for bone repair. However, the inherent bio-inertness of the Ti-6Al-4V alloy as the matrix of the scaffolds...journal article 2017
- document
-
Wang, S. (author), Xu, Y. (author), Zhou, J. (author), Li, H. (author), Chang, Jiang (author), Huan, Z. (author)Iron-matrix composites with calcium silicate (CS) bioceramic as the reinforcing phase were fabricated through powder metallurgy processes. The microstructures, mechanical properties, apatite deposition and biodegradation behavior of the Fe-CS composites, as well as cell attachment and proliferation on<br/>their surfaces, were characterized. In...journal article 2017
- document
-
Chen, C. (author), Chen, Z. (author), Bera, Deep (author), Raghunathan, S.B. (author), Shabanimotlagh, M. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Ponte, Jacco (author), Prins, Christian (author), Vos, H.J. (author), Bosch, J.G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents a power-and area-efficient front-end application-specific integrated circuit (ASIC) that is directly integrated with an array of 32 × 32 piezoelectric transducer elements to enable next-generation miniature ultrasound probes for real-time 3-D transesophageal echocardiography. The 6.1 × 6.1 mm<sup>2</sup> ASIC, implemented...journal article 2017
- document
-
Zhang, Y. (author), Olenick, Jeffrey (author), Chang, Chu-Hsiang (author), Kozlowski, Steve W. J. (author), Hung, H.S. (author)Continuous monitoring with unobtrusive wearable social sensors is becoming a popular method to assess individual affect states and team effectiveness in human research. A large number of applications have demonstrated the effectiveness of applying wearable sensing in corporate settings; for example, in short periodic social events or in a...journal article 2018
- document
-
Tan, M. (author), Chen, C. (author), Chen, Z. (author), Janjic, Jovana (author), Daeichin, V. (author), Chang, Z.Y. (author), Noothout, E.C. (author), van Soest, G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an area- and power-efficient application-specified integrated circuit (ASIC) for 3-D forward-looking intravascular ultrasound imaging. The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on the top of which a 2-D array of piezoelectric transducer elements is...journal article 2018
- document
-
Kang, E. (author), Ding, Q. (author), Shabanimotlagh, M. (author), Kruizinga, P. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, J.W. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an ultrasound transceiver application-specific integrated circuit (ASIC) designed for 3-D ultrasonic imaging of the carotid artery. This application calls for an array of thousands of ultrasonic transducer elements, far exceeding the number of channels of conventional imaging systems. The 3.6 x 6.8 mm&#x00B2; ASIC...journal article 2018