A5103172954- Physics of Superconductivity and Magnetism
- Advanced Cellulose Research Studies
- Superconducting Materials and Applications
- Superconductivity in MgB2 and Alloys
- Lignin and Wood Chemistry
- Material Properties and Processing
- Irrigation Practices and Water Management
- Transplantation: Methods and Outcomes
- Nanocomposite Films for Food Packaging
- Natural Fiber Reinforced Composites
- Electric Motor Design and Analysis
- Magnetic and transport properties of perovskites and related materials
- Tracheal and airway disorders
- Electrospun Nanofibers in Biomedical Applications
- Frequency Control in Power Systems
- Silicon Carbide Semiconductor Technologies
- Wood Treatment and Properties
- Spacecraft and Cryogenic Technologies
- Quantum and electron transport phenomena
- Organ and Tissue Transplantation Research
- biodegradable polymer synthesis and properties
- Microplastics and Plastic Pollution
- Pickering emulsions and particle stabilization
- Recycling and Waste Management Techniques
- Urban Stormwater Management Solutions
VTT Technical Research Centre of Finland
2014-2024
Tieto (Finland)
2019-2024
Aalto University
2024
Biocom
2020
Tampere University
2000-2010
Tampere University of Applied Sciences
2002-2008
Keskuslaboratorio
2002-2006
Päijät-Hämeen Keskussairaala
1990-2006
Helsinki University Hospital
1998
University of Helsinki
1997
Mulching has become an important practice in modern field production. This article reviews the published research on paper mulches and discusses opportunity that they offer for solving problems of immense use plastics agriculture associated environmental threat. Paper break down naturally after usage incorporate into soil. Laying large scale farming is a problem to be solved. The quality needs adapted or improved mulching purposes, its price more competitive with plastic mulches. review...
Wood-based multifunctional materials with excellent mechanical performance are increasingly considered for sustainable advanced applications due to their unique hierarchical structure and inherent reinforcing cellulose phase orientation. Nonetheless, a wider multipurpose utilization of wood is so far hampered because constraints arising from scalable functionalization, efficient processing, facile shaping as well asnatural heterogeneity durability. This study introduces all-wood material...
Summary— Indwelling urinary catheter may induce an inflammatory reaction or even stricture of the urethra. Catheter encrustation and infection are other disadvantages associated with long-term catheterisation. In present study, 77 male patients were catheterised randomly as part their normal treatment 1 3 different types catheter: 22 siliconised latex, 28 hydrogel-coated latex 27 full silicone catheters. The mean duration catheterisation was 2.2 days. urethral assessed from cytological swab...
Synthetic structural materials of high mechanical performance are typically either large weight (for example, steels, and alloys) or involve complex manufacturing processes thus have cost cause adverse environmental impact polymer-based biomimetic composites). In this perspective, low-cost, abundant nature-based materials, such as wood, represent particular interest provided they fulfill the requirements for advanced engineering structures applications, especially when manufactured totally...
Abstract Traditional particle board can generate harmful indoor air emissions due to the volatile resin-based compounds present. This study investigated preparation of sawdust using novel ionic liquid based fusion approach with [EMIM]OAc. The dissolution parameters were thermal optical microscopy technique. sheets prepared by hot pressing in presence (IL) ([EMIM]OAc) and subsequently purifying matrix from IL methanol. process particles was analysed SEM mechanical testing. raw materials...
Abstract Cellulose-based materials represent a renewable, biodegradable, and environmentally friendly alternative to plastic from fossil resources. Nanopaper is strong lightweight material formed cellulose nanofibrils (CNFs). Paper nanopaper have been considered as excellent alternatives plastics for use in agriculture packaging applications. However, common both paper their hydrophilic character, consequently, poor water-resistance properties. ORMOCER®s are class of inorganic–organic...
The risk of overheating arises if the stability an MgB2 coil is lost. This mainly due to low thermal conductivity matrix metal, which typically iron or nickel. Due a strong chemical reaction, copper can be used in contact with only specific cases: situ preparation route and formation temperature. However, recent developments manufacture conductors have resulted stabilized tapes. In any case, considerations are great importance. We studied computationally MgB2/Ni/Fe/Cu tape manufactured by...
The European Commissions single-use plastics directive has put major restrictions on the use of chemically modified cellulosics for different material applications, e.g., as films, fibres, foams and other shaped objects. In addition, wet strength barrier properties some these materials are lacking, in comparison to petrochemical-based plastics. current study we demonstrate that it is possible carry out surface selective acetylation kraft fibre paper nano-paper create maintain...
Intensive research has been directed at MgB2 since its discovery in 2001, focusing first on the material properties and conductor development recently also coil demonstrations. The relatively cheap easy fabrication makes a tempting for superconducting applications. It can be operated vicinity of 20 K, which commercial LTS materials are still normal state. However, breakthrough requires practical applications Therefore, we built solenoidal react-and-wind consisting 46 m commercially available...
Abstract In this study, we investigated the coating of birch veneers (BVs) with mechano-enzymatically manufactured microfibrillated cellulose (meMFC) to improve mechanical strength and functionality. The meMFC has a broad particle size distribution similar chemistry lignocellulose materials, which are both beneficial properties in wood products. veneer trials were carried out spray system developed coat controllable thin layers. produced uniform layers, smoothened BV surface significantly...
If a superconducting wire includes ferromagnetic constituent, then magnet design requires novel approach. We have previously reported on computing the critical current of coils that include matrix material. Now we introduce quench analysis in MgB2 solenoid and racetrack utilize conductors with matrix. The computer code was developed uses commercial software MATLAB FEMLAB. is also capable simulating wound low-temperature superconductor (LTS) high-temperature (HTS). enhancement to this...
The present study concerns the preparation of cellulosic powders with two-stage dry milling chemically crosslinked birch kraft pulp sheets. Chemical crosslinking sheets using glyoxal and without a catalyst (aluminium sulphate) made pliable, tenacious brittle. Due to brittleness, could be disintegrated easily rapidly Wiley mill. length-weighted average fibre length (0.31–0.33 mm) was shorter than Wiley-milled reference powder (0.44 mm). notably higher density less fluffy character enabled...
Alkyl ketene dimer (AKD) and rosin sizing are used in papermaking to decrease paper’s tendency absorb liquid water. Earlier information regarding the effects of internal on paper dry strength is not consistent. In present laboratory study, AKD handsheets made from Nordic bleached softwood pulp (NBSK), hardwood chemi-thermomechanical (CTMP) were done via an method, by immersing aqueous agent dispersion. had no significant effect NBSK handsheets. The result corresponds practical experiences...
We constructed a model to estimate analytically the current transfer from matrix superconducting region through highly resistive barrier layer. Also, numerical was formulated in order study when has nonlinear resistivity. Because so far definition for length (CTL) not been well established we propose which introduces method determine CTL corresponding chosen criterion. Two possible criteria are suggested. One relates electric field and other region. As consequence this paper gives an...
The energy needed for the dewatering and drying of wet paper web represents around half consumption papermaking processes. present work examined whether could be enhanced during a previous pulp process by pretreating fibers with polyamide-epichlorohydrin (PAE). According to hypothesis, cured PAE restrains swelling water absorption water-wetted forming fiber-bound, self-crosslinked polymer-network on fiber surfaces. hypothesis was tested adding never-dried kraft slurry followed thickening,...