In our oil and gas business, the production has been lower by 8% year-on-year in the first quarter. The reasons include natural decline and the proactive maintenance and workovers, which are being carried out to enhance asset reliability for a smoother ramp up in the subsequent quarters. By doing this now, we are ensuring that we have a stronger second half to this year when some of those projects come on stream.

Studies have also shown that tannery waste contaminates Hazaribagh’s topsoil. A 1999 study found contamination by various metals, including lead and cadmium. It concluded:

The structure and composition of the interface formed on an Al electrode in an AlCl3-IL electrolyte (TAl electrode) were interrogated using attenuated total reflection–Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), and x-ray photoelectron spectroscopy (XPS). Compared with pure Al, the surface of TAl is enriched with organic functional groups (Fig. 1A). In addition to the presence of C=N and C–H groups that are also abundant in the pristine IL electrolyte, a large enhancement in the C=C functional group and emergence of species containing the C=O group are detected on TAl. These observations are accompanied by the appearance of a stable film on the TAl surface. In addition, infrared vibration modes associated with the imidazolium ring (1100 to 600 cm−1) in the IL (21) largely disappear upon treatment, which indicates that the IL electrolyte is chemically transformed at the Al interface (Fig. 1A). XPS analysis of the pristine Al and TAl provides additional insights into the surface chemical features of TAl. Results in Fig. 1B, for example, show that even after polishing, Al2O3 still dominates the surface chemistry of the pristine Al. In contrast, the Al2p XPS spectra of TAl substrate reveal that a composite with higher binding energy, which can be attributed to an Al salt, likely AlCl3, dominates. This is confirmed by the Cl2p XPS spectra, because the binding energy of Cl2p located at about 199 eV is consistent with a valence of −1 (Fig. 1C). The N1s XPS spectra also show that the interface of the TAl is enriched in nitrogen-containing species. The sharp peak at 401 eV can be used to unequivocally identify the presence of imidazole ions (Fig. 1D). Compared with a pristine polished Al surface (Fig. 1E), the surface topography of TAl is obviously smoother (Fig. 1F). From the cross-section view imaged by SEM, an interfacial layer is observed on the Al substrate. EDX analysis of the layer shows that it is rich in the elements Al, Cl, and N (Fig. 1G and fig. S1).

The brand new WI.DE (Winding Detours) gravel bike from Open takes wider tyres than the company’s original UP from 2015 and is all the better for it, with supreme speed over all sorts of surfaces, infused with great handling and low weight from the original it’s based on. But the price tag puts it off-limits for many and you can only buy it as a frameset with a choice of one colour.

Vosko, S. H., Wilk, L. & Nusair, M. Accurate spin-dependent electron liquid correlation energies for local spin-density calculations – a critical analysis. Can. J. Phys. 58, 1200–1211 (1980).

Some of the other points for the average hacker is the gas used. In this case aluminium (aluminum) brazing rods are a low enough temperature to use cheap disposable gas cylinders and the MAP Pro (MAPP replacement) is probably just slightly better than the Propane as long as the heat sink your brazing is not too large.

There are some 8,000 to 12,000 tannery workers, rising to about 15,000 for two or three months following the festival of Eid-al-Adha, the peak season for raw hide processing.[3]

GMAW in aluminium is very common in high production environments…GTAW is more common in high end to custom applications.

Slatted wood, timber strips, whatever you call it, this design element is here to stay in interiors in Singapore.

Fig. S9. Electrochemical properties of Al-MnO2 batteries using TAl anode–, Al(CF3SO3)3-, and Al2(SO4)3-based aqueous electrolyte.

That scale can measure up to 300kg/600lbs. I was not expecting the connections to be that strong so my setup was clearly not prepared. I would like to build a hanging set up for testing things like this in the future. I think you’re missing the point of my video. Most people do not need connections strong enough to pull CF tubes in 2. I just designed an easy way to make customizable rod ends that are plenty strong for hobby projects/robotics.

If you want a classy commuter and to do the odd sportive, but don’t want to spend a fortune, the Metrix is a decent option.